CN113076761A

CN113076761A - Refrigerating appliance

Info

Publication number: CN113076761A
Application number: CN202010008988.1A
Authority: CN
Inventors: 夏必聪
Original assignee: BSH Home Appliances Co Ltd; Bo Xihua Electric Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Home Appliances Co Ltd; Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2021-07-06

Abstract

A refrigeration appliance, comprising: several compartments, further comprising: an antenna corresponding to each of the compartments, and the reading range of each of the antennas at least covers the corresponding compartment; a processing module, and the communicate with the antenna, and the processing module is configured to perform the following steps: acquiring the current electronic label signal of each of the compartments; comparing the current electronic label signal of each of the compartments with the previous electronic label signal As a result, it is determined whether a new electronic tag exists in each of the compartments. The solution of the present invention provides an improved refrigerating appliance, which can precisely locate the position of the electronic tag in the refrigerating appliance.

Description

Refrigerating appliance

Technical Field

The embodiment of the invention relates to the technical field of refrigeration appliances, in particular to a refrigeration appliance.

Background

With the development of smart home concepts, for example, refrigerators, freezers and other refrigeration appliances, in addition to the basic low-temperature storage function, the refrigeration appliances are gradually developing in the direction of intellectualization and diversification.

For example, electronic tags have begun to be applied in the field of inventory management of refrigerators. Specifically, in combination with a Radio Frequency Identification (RFID) technology, a user can perform inventory management on the stored items in the refrigerator without opening the refrigerator door.

Disclosure of Invention

It is an object of embodiments of the present invention to provide an improved refrigeration appliance.

Accordingly, an embodiment of the present invention provides a refrigeration device, including: a plurality of compartments, further comprising: the antenna is arranged corresponding to each chamber, and the reading range of each antenna at least covers the corresponding chamber; a processing module in communication with the antenna, the processing module configured to perform the steps of: acquiring the current electronic tag signal of each chamber; and determining whether a newly added electronic tag exists in each chamber according to the comparison result of the current electronic tag signal and the last electronic tag signal of each chamber.

Compared with the prior art, the embodiment scheme provides an improved refrigeration appliance, can carry out accurate location to the position of electronic tags in the refrigeration appliance. Specifically, the electronic tag signal of this time of each compartment is obtained at least according to the antenna correspondingly arranged in each compartment, and then whether the newly added electronic tag exists in each compartment is judged through comparison with corresponding historical data, so that accurate positioning of the electronic tag in the refrigeration appliance is possible.

Optionally, the determining, according to a comparison result between the current electronic tag signal and the last electronic tag signal of each compartment, whether a newly added electronic tag exists in each compartment includes: for each compartment, acquiring door opening and closing information of a door corresponding to the compartment during the period of acquiring electronic tag signals of the compartment twice; and when the door opening and closing information is the condition switching of the door opening and closing, determining whether a newly added electronic tag exists in the chamber according to the comparison result. Therefore, the positioning accuracy of the electronic tag is improved by combining the door opening and closing information. Specifically, the door opening and closing information may be used as a predetermined condition, and when the door opening and closing state switching occurs during the two previous and subsequent executions of the positioning scheme described in this embodiment, it may be considered that there is a possibility that the user inserts a new electronic tag into the compartment. Therefore, when the door opening and closing information indicates that the door opening and closing state switching is over, the processing module compares the obtained current electronic tag signal and the last electronic tag signal of the chamber to determine whether a newly added electronic tag really exists in the chamber.

Optionally, the determining, according to a comparison result between the current electronic tag signal and the last electronic tag signal of each compartment, whether a newly added electronic tag exists in each compartment includes: and for each compartment, comparing the number of the tag signals included in the current electronic tag signal with the number of the electronic tag signals included in the last electronic tag signal, and determining that a newly added electronic tag exists in the compartment when the number of the electronic tag signals included in the current electronic tag signal is greater than the number of the electronic tag signals included in the last electronic tag signal. Therefore, for the same chamber, whether the newly added electronic tag exists in the chamber at this time can be accurately judged according to the quantity difference of electronic tag signals generated by the electronic tags in the chamber acquired twice before and after.

Optionally, the determining, according to a comparison result between the current electronic tag signal and the last electronic tag signal of each compartment, whether a newly added electronic tag exists in each compartment includes: and for each chamber, comparing the tag ID included in the current electronic tag signal with the tag ID included in the last electronic tag signal, and determining that a newly added electronic tag exists in the chamber when the tag ID included in the current electronic tag signal does not belong to the last electronic tag signal. For the same compartment, there may be a case where the number of electronic tag signals generated by the electronic tags in the compartment acquired twice before and after is the same although there is a new electronic tag, such as a user taking out one stored object from the compartment and putting another new stored object in the compartment. Therefore, in the scheme of the embodiment, the tag IDs of the electronic tags in the room, which are acquired twice before and after, are used as comparison bases, and accurate identification of the newly added electronic tags is ensured based on the uniqueness characteristic of the tag IDs.

Optionally, the determining, according to a comparison result between the current electronic tag signal and the last electronic tag signal of each compartment, whether a newly added electronic tag exists in each compartment includes: for each chamber, comparing the number of tag signals included in the current electronic tag signal with the number of electronic tag signals included in the last electronic tag signal, and comparing the tag ID included in the current electronic tag signal with the tag ID included in the last electronic tag signal; and when the number of the electronic tag signals included in the current electronic tag signal is greater than the number of the electronic tag signals included in the last electronic tag signal, and the tag ID included in the current electronic tag signal does not belong to the last electronic tag signal, determining that a newly added electronic tag exists in the chamber. Therefore, the number of the electronic tag signals and the tag ID are used as a comparison basis, and the accuracy of the comparison result is improved.

Optionally, the plurality of compartments include a plurality of directional compartments arranged along a first direction, the antenna corresponding to each of the compartments includes a directional antenna corresponding to each of the directional compartments, and the reading directions of the directional antennas are the same. Therefore, the directional antenna is arranged on the partition (namely the partition wall) between the directional chambers and the edge of the box body (namely the body) according to the distribution direction of the directional chambers. Furthermore, by utilizing the characteristic that the directional antenna reads signals in a specific direction, when the newly added electronic tag is determined to exist according to the comparison result of the directional antenna and the historical data, the chamber where the electronic tag is located can be visually and accurately determined according to the setting position of the directional antenna.

Optionally, the obtaining of the current electronic tag signal of each compartment includes: for each directional chamber, acquiring an electronic tag signal read by a directional antenna corresponding to the directional chamber at the current time, and recording the electronic tag signal as a first electronic tag signal; acquiring an electronic tag signal read by a directional antenna corresponding to a directional chamber located in front of the directional chamber along the reading direction at this time, and recording the electronic tag signal as a second electronic tag signal; and determining the part of the first electronic tag signal which is not overlapped with the second electronic tag signal as the current electronic tag signal of the directional compartment. Therefore, the electronic tag signals read by the directional antennas corresponding to all directional chambers located in front of the directional chamber needing to be judged currently along the reading direction at the present time can be combined, the electronic tag signals of the directional chamber needing to be judged currently at the present time can be accurately obtained, and whether the newly added electronic tags exist or not is determined through comparison with historical data.

Optionally, a connection line direction of the plurality of directional antennas is parallel to the first direction, so as to optimize reading accuracy of the electronic tag.

Optionally, the plurality of directional antennas are sequentially activated along an activation direction, wherein the activation direction is opposite to the reading direction. Therefore, the directional antennas are started in sequence according to the specific sequence, and whether the newly added electronic tag exists in the directional room corresponding to the currently started directional antenna can be determined in time along with the sequential starting of the directional antennas, and the situation that all the directional antennas are completely started is not required.

Optionally, the obtaining of the current electronic tag signal of each compartment includes: for each directional chamber, acquiring a tag signal read by a directional antenna corresponding to the directional chamber at the current time, and recording the tag signal as a first electronic tag signal; acquiring a tag signal read by a directional antenna started before the directional antenna corresponding to the directional chamber at this time, and recording the tag signal as a third electronic tag signal; and determining the part of the first electronic tag signal which is not overlapped with the third electronic tag signal as the current electronic tag signal of the directional compartment. Therefore, as the directional antennas are sequentially started, when the first electronic tag signal read by the currently started directional antenna is obtained, the electronic tag signals read by all the directional antennas started before the directional antenna are used as the third electronic tag signal, so that the current electronic tag signal of the directional chamber corresponding to the currently started qualitative antenna is accurately obtained, and whether a new electronic tag exists is determined by comparing the current electronic tag signal with historical data.

Optionally, the compartments include at least one shielding compartment, and the refrigeration appliance further includes a shielding structure, and for each shielding compartment, the shielding structure is disposed between the shielding compartment and another compartment included in the refrigeration appliance, so as to limit a reading range of an antenna corresponding to the shielding compartment. Therefore, the electronic tag can be accurately positioned through the matching of the antenna and the shielding structure. Specifically, the reading capability of the antenna for the electronic tag signal is limited in the shielding chamber corresponding to the antenna through the shielding structure, so that the antenna is arranged to be specially used for reading the electronic tag signal in a specific chamber. Furthermore, the shielding structure is also suitable for shielding the electronic tag signals of the electronic tags in the shielding rooms read by the antennas arranged in other rooms, so that the identification deviation of other rooms during the electronic tag positioning operation is avoided.

Optionally, the obtaining of the current electronic tag signal of each compartment includes: and for each shielding room, determining the tag signal read by the antenna corresponding to the shielding room as the current electronic tag signal of the shielding room. Because the antenna is specially used for reading the electronic tag signals in the shielding chamber, when the antenna reads newly added electronic tag signals which are not read last time, the existence of the newly added electronic tags in the shielding chamber can be visually determined.

Optionally, the shielding structure is embedded in a partition wall for partitioning the shielding compartment from other compartments of the refrigeration appliance.

Optionally, the partition wall for separating the shielding compartment from the other compartments of the refrigeration appliance comprises a shielding material to form the shielding structure.

Optionally, the refrigeration appliance includes a first compartment and a second compartment arranged along a second direction, and further includes: the first antenna is arranged on one side, far away from the second chamber, of the first chamber, the second antenna is arranged on the other side, far away from the first chamber, of the second chamber, and the direction of the first antenna pointing to the second antenna is parallel to the second direction; a processing module in communication with the first antenna and the second antenna, the processing module configured to perform the steps of: acquiring electronic tag signals read by the first antenna and the second antenna respectively, wherein the electronic tag signals are generated by electronic tags placed in the first chamber or the second chamber; comparing the electronic tag signal read this time with the electronic tag signal read last time to judge whether a new electronic tag exists; and when the judgment result shows that the newly added electronic tag exists, determining a target chamber where the newly added electronic tag is located at least according to the difference between a first electronic tag signal of the newly added electronic tag read by the first antenna and a second electronic tag signal of the newly added electronic tag read by the second antenna, wherein the target chamber is the first chamber or the second chamber.

Compared with the scheme that whether the electronic tag is located in the refrigeration appliance can only be identified in the prior art, the scheme provided by the invention provides the improved refrigeration appliance, and the position of the electronic tag in the refrigeration appliance can be accurately positioned. Specifically, along the arrangement direction of the two compartments, the first antenna and the second antenna are symmetrically arranged on two sides of the area covered by the two compartments. Therefore, when the newly added electronic tag is placed in the first chamber or the second chamber, due to the fact that the distances from the first antenna and the second antenna to the newly added electronic tag are different, the electronic tag signals read by the two antennas respectively are different. Furthermore, by analyzing the difference of the electronic tag signals, the room where the electronic tag is located can be determined, the time cost of the user for managing the stored materials is simplified, and the user experience is optimized.

Drawings

FIG. 1 is a schematic view of a first refrigeration appliance of an embodiment of the present invention;

FIG. 2 is a schematic view of a second refrigeration appliance of an embodiment of the present invention;

fig. 3 is a flowchart of a first electronic tag locating method according to an embodiment of the present invention;

FIG. 4 is a flowchart of one embodiment of step S103 of FIG. 3;

FIG. 5 is a schematic view of a third refrigeration appliance according to an embodiment of the present invention;

FIG. 6 is a flow chart of a second electronic tag locating method according to an embodiment of the present invention;

FIG. 7 is a schematic view of a fourth refrigeration appliance according to an embodiment of the present invention;

FIG. 8 is a schematic view of a fifth refrigeration appliance according to an embodiment of the present invention;

FIG. 9 is a schematic view of a sixth refrigeration appliance according to an embodiment of the present invention;

FIG. 10 is a flow chart of a third electronic tag locating method according to an embodiment of the present invention;

FIG. 11 is a schematic view of a seventh refrigeration appliance according to the embodiment of the present invention;

FIG. 12 is a schematic view of an eighth refrigeration appliance according to an embodiment of the present invention;

fig. 13 is a flowchart of a fourth electronic tag positioning method according to an embodiment of the present invention;

FIG. 14 is a flowchart of one embodiment of step S401 in FIG. 13;

in the drawings:

1-a refrigeration appliance; 10-a body; 11-compartment; 111-a first compartment; 111 a-a first wall; 111 b-a second wall; 112-a second compartment; 112 a-third wall; 112 b-a fourth wall; 113-a shield compartment; 114-a directional compartment; 12-a reader; 13-an antenna; 131-a first antenna; 131 a-a first antenna module; 132-a second antenna; 132 a-a second antenna module; 133-antenna group; 134-a directional antenna; 14-an electronic tag; 141-adding an electronic tag; 15-a processing module; 16-a partition wall; 17-a shielding structure; 18-a first direction; 2-stock; 21-newly adding a stock; 16-a second direction; x-width direction of the refrigeration appliance; z-the height direction of the refrigeration appliance; signal-the read direction of the directional antenna.

Detailed Description

As background art, the prior art cannot accurately locate an electronic tag located in a refrigerator.

In particular, a refrigerator generally has a plurality of compartments, such as a refrigerating compartment, a freezing compartment, a temperature changing compartment, a fruit and vegetable compartment, and the like, and the existing RFID technology cannot accurately locate a specific position of an RFID electronic tag (which may be simply referred to as an electronic tag) in the refrigerator. For example, based on the existing RFID technology, after a user puts an electronic tag and a storage object into a refrigerator, a tag reader installed in the refrigerator can identify the electronic tag, and further determine which compartment of the refrigerator the corresponding storage object is located in, but which compartment of the refrigerator the storage object is specifically located in needs to be manually input by the user. For example, after putting an electronic tag into a refrigerator together with stored goods, a user needs to manually input on a display panel of the refrigerator whether the newly-put electronic tag is specifically located in a refrigerating chamber or a freezing chamber.

To solve the above technical problem, an embodiment of the present invention provides a refrigeration device, including: a plurality of compartments, further comprising: the antenna is arranged corresponding to each chamber, and the reading range of each antenna at least covers the corresponding chamber; a processing module in communication with the antenna, the processing module configured to perform the steps of: acquiring the current electronic tag signal of each chamber; and determining whether a newly added electronic tag exists in each chamber according to the comparison result of the current electronic tag signal and the last electronic tag signal of each chamber.

The scheme of the embodiment provides an improved refrigeration appliance, and the position of an electronic tag in the refrigeration appliance can be accurately positioned. Specifically, the electronic tag signal of this time of each compartment is obtained at least according to the antenna correspondingly arranged in each compartment, and then whether the newly added electronic tag exists in each compartment is judged through comparison with corresponding historical data, so that accurate positioning of the electronic tag in the refrigeration appliance is possible.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

FIG. 1 is a schematic view of a first refrigeration appliance of an embodiment of the present invention; fig. 2 is a schematic view of a second refrigeration appliance according to an embodiment of the present invention. The refrigeration device shown in fig. 1 and 2 differs therefrom in the arrangement of the compartments. For example, fig. 1 shows a compartment arrangement of a typical side-by-side refrigerator, and fig. 2 shows a compartment arrangement of a typical double door refrigerator.

In particular, the refrigeration appliance may be a refrigerator, a freezer or the like.

In one implementation, with reference to fig. 1, the refrigeration appliance 1 may comprise: a body 10, wherein the body 10 may include a plurality of compartments 11, each compartment 11 is adapted to accommodate a storage object, and each compartment 11 has an opening exposing its accommodating cavity; a plurality of doors (not shown) corresponding to the compartments 11 one by one, each door being adapted to open or close an opening of a corresponding compartment 11.

Alternatively, a single door may be used to open or close the openings of two or more compartments 11 simultaneously.

In one specific implementation, the electronic tag system applied to the refrigeration device 1 of the present embodiment may include: reader (Reader) 12: the electronic tag is arranged on the body 10 and used for reading or writing electronic tag signals; antenna (Antenna) 13: at least one part of the compartments 11 is arranged in the plurality of compartments 11 and is used for transmitting radio frequency signals between the electronic tags 14 and the reader 12, and the reader 12 can acquire the electronic tag signals of the electronic tags 14 based on the radio frequency signals; electronic Tag (Tag) 14: each electronic tag 14 has a unique electronic code for attaching to an object, such as a storage 2 placed in the refrigeration appliance 1, to identify a target object.

Wherein the reader 12 is coupled to the antenna 13 to receive the electronic tag signal of the electronic tag 14 through the antenna 13.

Further, the electronic label system may further include a label box (closing) (not shown): for storing the electronic tags 14, the label box has a shielding function so that the electronic tags 14 placed in the label box are not recognized by the reader 12. For example, the electronic label system may be configured with a plurality of electronic labels 14, the plurality of electronic labels 14 being placed within the label box to provide shielding when the electronic label system is not required to locate a storage placed within the refrigeration appliance 1. When it is desired to use the electronic label system, a user can remove an electronic label 14 from the label box and place it into compartment 11 together with the storage 2 to be located.

In response to the electronic tag 14 being placed into the compartment 11 along with the stored object 2, the reader 12 sends a radio frequency signal with a certain frequency through the antenna 13, and when the electronic tag 14 enters the working area of the antenna 13, an induced current is generated, and the electronic tag 14 is activated by obtaining energy. Further, the activated electronic tag 14 transmits information such as its own code (e.g., tag ID) through a built-in antenna (not shown). The carrier signal sent by the electronic tag 14 is received by the antenna 13 and transmitted to the reader 12 through an antenna regulator (not shown), and the reader 12 demodulates and decodes the received signal to obtain the electronic tag signal of the electronic tag 14. Further, the reader 12 sends the acquired electronic tag signal to the processing module 15. In response to receiving the electronic tag signal, the processing module 15 can accurately locate the specific position of the electronic tag 14 by executing the electronic tag locating method of this embodiment. As for the side by side refrigerator shown in fig. 1, it can be distinguished whether the electronic tag 14 is in the illustrated left compartment or right compartment.

The processing module 15 is in communication with the reader 12 to obtain the electronic tag signal collected by the reader 12.

Further, the housing of the refrigeration device 1 is usually made of a metal material, which is a shielding material, so that the electronic tag signal of the electronic tag placed outside the refrigeration device 1 can be shielded, so that the reader 12 provided in the refrigeration device 1 can read only the electronic tag signal of the electronic tag located inside the refrigeration device 1.

Further, the label box may be placed inside the refrigerator 1, such as on a shelf of a door. Alternatively, the label box may be placed separately from the refrigerator 1.

It should be noted that fig. 1 only shows the location of the processing module 15 and the reader 12 by way of example, and in practical applications, the processing module 15 and the reader 12 may be located at any position of the refrigeration appliance 1. For example, the processing module 15 and the reader 12 in fig. 2 can be arranged in a separating wall 16 between two compartments 11 of the refrigeration device 1.

Or, the processing module 15 may be a cloud server, a peripheral server, or the like, which is independent from the refrigeration device 1, and the processing module 15 wirelessly communicates with the reader 12 to obtain the electronic tag signal.

In one implementation, the plurality of compartments 11 may include a first compartment 111 and a second compartment 112 arranged along the second direction 16.

In particular, the first compartment 111 and the second compartment 112 may be juxtaposed along the second direction 16.

Taking the side-by-side refrigerator shown in fig. 1 as an example, the side-by-side refrigerator may have two left and right compartments, wherein the left compartment may be referred to as a first compartment 111 and the right compartment may be referred to as a second compartment 112. At this time, the second direction 16 is parallel to the width direction (illustrated x direction) of the refrigeration apparatus 1.

Taking the double-door refrigerator shown in fig. 2 as an example, the double-door refrigerator may have an upper compartment and a lower compartment, wherein the upper compartment may be referred to as a first compartment 111 and the lower compartment may be referred to as a second compartment 112. At this time, the second direction 16 is parallel to the height direction (illustrated z direction) of the refrigeration device 1.

The first compartment 111 may be a refrigerating compartment, and the second compartment 112 may be a freezing compartment, or vice versa.

In a variation, one or more compartments in which electronic tag 14 is not to be placed may be further provided between first compartment 111 and second compartment 112 along the second direction (shown as the x direction).

In a particular embodiment, with continued reference to fig. 1 and 2, the plurality of antennas 13 may include: a first antenna 131 and a second antenna 132, the first antenna 131 may be disposed on one side of the first compartment 111 away from the second compartment 112, the second antenna 132 may be disposed on the other side of the second compartment 112 away from the first compartment 111, and a direction in which the first antenna 131 points to the second antenna 132 is parallel to the second direction 16.

Specifically, the first antenna 131 and the second antenna 132 may have the same shape, size, and model.

Further, the first antenna 131 and the second antenna 132 may be symmetrically disposed with respect to a predetermined symmetry axis (not shown), wherein the predetermined symmetry axis is a perpendicular bisector of the body 10 along the second direction 16. For example, for the side-by-side refrigerator shown in fig. 1, the predetermined axis of symmetry is the perpendicular bisector of the body 10 in the x-direction. For another example, for the double-door refrigerator shown in fig. 2, the preset axis of symmetry is a perpendicular bisector of the body 10 in the z-direction.

Thus, the first antenna 131 and the second antenna 132 may be collectively referred to as a symmetric antenna.

Referring to fig. 1, along the second direction 16, the first compartment 111 may include a first wall 111a and a second wall 111b that are parallel, and the second compartment 112 may include a third wall 112a and a fourth wall 112b that are parallel, wherein the second wall 111b is adjacent to the third wall 112 a. Further, the first antenna 131 may be disposed on the first wall 111a, and the second antenna 132 may be disposed on the fourth wall 112 b. Thus, the first antenna 131 and the second antenna 132 are symmetrically arranged on the outer sides of the two compartments 11 relative to each other, so that the two antennas 13 can read the electronic tag signals in the two compartments 11.

For example, the first wall 111a is formed by an inner container of the first compartment 111, and the first antenna 131 may be disposed between the inner container and an outer case of the body 10. For another example, the first antenna 131 may be disposed in a foam layer corresponding to the first wall 111 a.

Similarly, the fourth wall 112b is formed by the inner container of the second compartment 112, and the second antenna 132 may be disposed between the inner container and the outer shell of the body 10. For another example, the second antenna 132 may be disposed in a foam layer corresponding to the fourth wall 112 b.

In one implementation, the read range of each of the first antenna 131 and the second antenna 132 covers at least the first compartment 111 and the second compartment 112. This can significantly reduce the probability that the electronic tag 14 cannot be recognized by the antenna 13 due to the presence of the shielding object between the electronic tag 14 and the antenna 13.

Specifically, the first antenna 131 can at least read the electronic tag signals of the electronic tags located in the first compartment 111 and the second compartment 112.

Similarly, the second antenna 132 can also read at least the electronic tag signals of the electronic tags located in the first compartment 111 and the second compartment 112.

Further, the partition wall 16 between the first compartment 111 and the second compartment 112 is made of a non-metal material so as not to shield signals.

In one implementation, the processing module 15 may be in communication with the first antenna 131 and the second antenna 132, respectively, and the processing module 15 may be configured to perform the steps shown in fig. 3. Fig. 3 is a flowchart of a first method for locating the electronic tag 14 according to an embodiment of the present invention. By performing the method steps shown in fig. 3, the processing module 15 is able to precisely locate the specific position of the electronic tag 14 within the refrigeration appliance 1 shown in fig. 1, 2 and 5. That is, the processing module 15 executes the method steps shown in fig. 3 to determine whether the electronic tag 14 is located in the first compartment 111 or the second compartment 112 of the refrigeration appliance 1 shown in fig. 1, 2 and 5.

Specifically, referring to fig. 3, the method for locating the electronic tag 14 may include the following steps:

step S101, acquiring electronic tag signals read by the first antenna 131 and the second antenna 132 respectively, where the electronic tag signals are generated by the electronic tags 14 placed in the first chamber 131 or the second chamber 132;

step S102, comparing the electronic tag signal read this time with the electronic tag signal read last time to judge whether a new electronic tag 141 exists;

when the determination result in the step S102 indicates that the newly added electronic tag 141 exists, the method further includes a step S103, determining a target compartment where the newly added electronic tag 141 is located at least according to a difference between a first electronic tag signal of the newly added electronic tag 141 read by the first antenna 131 and a second electronic tag signal of the newly added electronic tag 141 read by the second antenna 132, where the target compartment is the first compartment 111 or the second compartment 112.

When the determination result in the step S102 indicates that there is no new electronic tag 141, the processing module 15 may restart the step S101 until the determination result in the step S102 is positive. Specifically, when the determination result in the step S102 is negative, the processing module 15 may wait for a preset time period, which may be 15 minutes, and then re-execute the step S101. The specific value of the preset time period can be adjusted by those skilled in the art as required.

Alternatively, when the determination result of the step S102 is negative, the processing module 15 may re-execute the step S101 according to a user instruction. For example, the user instruction may be obtained based on an interaction module (not shown) provided in the refrigeration appliance 1, and the user instruction is used for instructing to perform a positioning operation of the electronic tag 14.

Alternatively, when the determination result of the step S102 is negative, the processing module 15 may re-execute the step S101 when a preset condition is triggered. For example, the preset condition may be that a door corresponding to the first compartment 111 and/or the second compartment 112 is opened. Accordingly, the processing module 15 may start to perform the step S101 after the opened door is closed.

Alternatively, when the determination result in the step S102 indicates that there is no new electronic tag 141, the processing module 15 may end the operation.

Further, after the step S103 is executed to determine the target compartment where the new electronic tag 141 is located, the processing module 15 may enter a sleep state until the preset condition is satisfied again.

Alternatively, after the step S103 is executed to determine the target compartment where the new electronic tag 141 is located, the processing module 15 may periodically execute the step S101, and discover the new electronic tag 141.

Further, the new electronic tag 141 may be any electronic tag 14 taken from the tag box, which is different from other electronic tags read by the first antenna 131 and the second antenna 132 when the step S101 is executed in that the new electronic tag 141 enters the refrigeration device 1 along with the new storage 21 placed in the first compartment 111 or the second compartment 112 after the first antenna 131 and the second antenna 132 are activated last time. By adopting the scheme of this embodiment, the processing module 15 can accurately locate the position of the newly added stored object 21 in the refrigeration appliance 1 by accurately identifying the target compartment where the newly added electronic tag 141 is located, without the need for the user to manually input the position of the newly added stored object 21.

From the above, the present embodiment provides an improved refrigeration device 1, which can precisely position the position of the electronic tag 14 in the refrigeration device 1. Specifically, along the arrangement direction of the two compartments 11, the first antenna 131 and the second antenna 132 are symmetrically disposed on both sides of the area covered by the two compartments 11. Therefore, when the new electronic tag 141 is placed in the first compartment 111 or the second compartment 112, the distances from the first antenna 131 and the second antenna 132 to the new electronic tag 141 are different, so that the electronic tag signals read by the two antennas 13 are different. Furthermore, by analyzing the difference of the electronic tag signals, the compartment 11 where the electronic tag 14 is located can be determined, the time cost of managing the storage 2 by the user is simplified, and the user experience is optimized.

In one implementation, in the step S101, the electronic tag signal read by the first antenna 131 and the electronic tag signal read by the second antenna 132 may be obtained from the reader 12.

In one implementation, the step S102 may include the steps of: comparing the number of the electronic tag signals read this time with the number of the electronic tag signals read last time; when the number of the electronic tag signals read this time is greater than the number of the electronic tag signals read last time, it is determined that the newly added electronic tag 141 exists. Therefore, by combining the RFID technology and the history read data, the new electronic tag 141 is found in time according to the total number of the electronic tags 14 sensed in the refrigeration device 1, and the position information of the new stored object 2 is updated in time after the new stored object 2 is placed in the refrigeration device 1.

For example, referring to fig. 1, when the first antenna 131 and the second antenna 132 are activated last time, only one storage object 2 is placed in the second compartment 112, and the number of the electronic tag signals read last time is one. After the last start, the newly added storage 21 and the associated newly added electronic tag 141 are placed in the first compartment 111, and two electronic tag signals can be read at this start. From this, it can be determined that the newly added electronic tag 141 exists.

In one implementation, the electronic tag signal may include a tag ID, and the tag ID may be unique, with different electronic tags 14 having different tag IDs.

The step S102 may include the steps of: comparing the tag ID read this time with the tag ID read last time; when the tag ID that has not been read last time appears, it is determined that the newly added electronic tag 141 exists. Therefore, the new electronic tag 141 can be found in time based on the uniqueness of the tag ID in combination with the RFID technology and the history read data, and the position information of the new storage 21 can be updated in time after the new storage 21 is placed in the refrigeration device 1.

Further, by utilizing the uniqueness of the tag ID, when the user takes out and replaces the stored object 2 from the refrigerator 1, it is possible to effectively determine whether the user replaces the existing stored object 2 or the new stored object 21 in the refrigerator 1 by comparing the tag IDs. Moreover, when the user takes out the stored object 2 and puts in the newly added stored object 2, even if the total number of the electronic tags 14 read twice before and after is not changed, the tag ID can effectively identify whether the newly added electronic tag 141 which has not been read last time appears.

For example, referring to fig. 1, when only one storage object 2 is placed in the second compartment 112 when the first antenna 131 and the second antenna 132 are activated last time, the last read tag ID only includes the tag ID of the electronic tag 14 associated with the storage object 2. After the previous start, the new storage 21 and the associated new electronic tag 141 are placed in the first compartment 111, and the number of tags ID that can be read at this time is two, and the presence of the new electronic tag 141 and the tag ID of the new electronic tag 141 can be determined by comparing with the tag ID read at the previous time.

Further, the tag ID read last time may be the tag IDs of all electronic tags 14 in the first compartment 111 and the second compartment 112 obtained last time step S101 is executed.

For example, the processing module 15 may include a storage unit (not shown) for storing the electronic tag signal of the electronic tag 14 obtained after the step S101 is performed historically.

For another example, the storage unit may be a cloud database, and the processing module 15 may remotely access the cloud database to obtain corresponding history data when performing the step S102.

In one implementation, the step S103 may include the steps of: and determining the chamber 11 in which the antenna 13 corresponding to the electronic tag signal with the larger relative signal strength in the first electronic tag signal and the second electronic tag signal is located as the target chamber. Therefore, according to the characteristic that the closer the distance between the electronic tag 14 and the antenna 13 is, the greater the signal strength of the electronic tag signal read by the antenna 13 is, the signal strength difference of the new electronic tag 141 read by the two antennas 13 can be compared to determine whether the new electronic tag 141 is closer to the first antenna 131 or the second antenna 132, and further determine whether the new electronic tag 141 is located in the first compartment 111 or the second compartment 112.

For example, the relative signal strength may be a signal strength of an electronic tag signal of the electronic tag 14 directly read by the antenna 11, and is referred to as a received signal strength.

For another example, the relative signal strength may be obtained after being modified according to the received signal strength. This can improve the accuracy of determining the target compartment in which the electronic tag 14 is located.

Specifically, when the electronic tag 14 is located near the middle point of the first antenna 131 and the second antenna 132 along the second direction 16, the distances from the electronic tag 14 to the two antennas 13 are substantially the same, and therefore, the strength of the received signals read by the first antenna 131 and the strength of the received signals read by the second antenna 132 are not greatly different. In consideration of this, the embodiment corrects the received signal strength and determines the compartment 11 where the electronic tag 14 is located according to the comparison result of the corrected relative signal strength, so that the electronic tag 14 placed at the middle position of the refrigeration appliance 1 along the second direction 16 can be accurately positioned.

In one implementation, the received signal strength may be modified based on a difference in the lengths of the first and

second compartments

111, 112 along the second direction 16 to obtain the relative signal strength.

For example, the relative signal strength may be determined by multiplying the received signal strength by a preset coefficient, wherein the preset coefficient may be positively correlated with the length of the compartment 11 corresponding to the antenna 13 that reads the electronic tag signal along the second direction 16.

Therefore, the preset coefficient can be reasonably determined according to the size ratio of the first chamber 111 and the second chamber 112, and the positioning accuracy of the electronic tag 14 is improved. Specifically, for the first compartment 111 and the second compartment 112, when the lengths of the two compartments 11 in the second direction 16 are different, the greater the length of any one of the compartments 11 in the second direction 16, the more likely the midpoint of the first antenna 131 and the second antenna 132 in the second direction 16 is to be located in the compartment 11. Therefore, the processing module 15 appropriately increases the preset coefficient corresponding to the antenna 13 disposed in the chamber 11 to increase the weight of the electronic tag signal read by the antenna 13 corresponding to the chamber 11. Accordingly, when the electronic tag 14 is located near the midpoint of the first antenna 131 and the second antenna 132 along the second direction 16, although the respective received signal strengths read by the first antenna 131 and the second antenna 132 are not greatly different, under the effect of the preset coefficient, the relative signal strength of the antenna 13 corresponding to the compartment 11 with the larger length along the second direction 16 is necessarily greater than the relative signal strength of the other antenna 13, and thus, accurate positioning of the electronic tag 14, especially the electronic tag 14 located at the middle position, can be achieved.

For example, referring to fig. 1, the first antenna 131 and the second antenna 132 both read the tag signal of the newly added tag 141. The received signal strength of the tag signal of the new electronic tag 141 read by the first antenna 131 is denoted as ST _ RC, and the received signal strength of the tag signal of the new electronic tag 141 read by the second antenna 132 is denoted as ST _ FC.

For the newly added electronic tag 141, the relative signal strength ST _ RC read by the first antenna 131 is: SR _ RC — k1 × ST _ RC; the relative signal strength ST _ FC of the second antenna 132 is: SR _ FC is k2 × ST _ FC. Wherein k1 is the predetermined coefficient corresponding to the first antenna 131, and k2 is the predetermined coefficient corresponding to the second antenna 132.

In an ideal case, if the lengths of the first and

second compartments

111, 112 in the second direction 16 are the same, then k 1-k 2-1. In practical cases, the values of k1 and k2 can be verified by combining theoretical calculation and experimental tests. The inventors have found through analysis that the numerical relationship between k1 and k2 is approximately proportional to the length of the corresponding compartment 11 along the second direction 16.

Further, if SR _ RC > SR _ FC, the location where the newly added electronic tag 141 is stored may be determined as the first compartment 111; if SR _ RC < SR _ FC, the location where the newly added electronic tag 141 is stored may be determined as the second compartment 112.

Taking the side-by-side refrigerator shown in fig. 1 as an example, the length of the first compartment 111 along the second direction 16 may be the width of the first compartment 111, and similarly, the length of the second compartment 112 along the second direction 16 may be the width of the second compartment 112.

Taking the double-door refrigerator shown in fig. 2 as an example, the length of the first compartment 111 along the second direction 16 may be the height of the first compartment 111, and similarly, the length of the second compartment 112 along the second direction 16 may be the height of the second compartment 112.

In one implementation, fig. 4 is a flowchart of an implementation of step S103 in fig. 3, and referring to fig. 4, the step S103 may include the following steps:

step S1031, acquiring door opening and closing information of a first door (not shown) corresponding to the first chamber 111 and a second door (not shown) corresponding to the second chamber 112 during two times of reading the electronic tag signal;

step S1032, when the door opening and closing information indicates that the number of door bodies with opening and closing state switching occurring in the two times of reading the electronic tag signals is multiple, acquiring the first electronic tag signal and the second electronic tag signal;

step S1033, determining a compartment 11 where the antenna 13 corresponding to the electronic tag signal with the larger relative signal strength in the first electronic tag signal and the second electronic tag signal is located as the target compartment.

Therefore, the compartment where the additional electronic tag 141 is located is accurately identified by combining the door opening and closing information before and after the additional electronic tag 141 is placed in the refrigeration device 1 and the RFID technology.

In a typical application scenario, after the first antenna 131 and the second antenna 132 are started last time and before the first antenna is started this time, if a plurality of doors are opened during this time, after the user closes all the doors this time, the processing module 15 may control the reader 12 to start the first antenna 131 and the second antenna 132 successively to perform a signal reading operation, and combine the results read by the two antennas 13 and compare the results with the electronic tag signals read last time. If there is a new electronic tag 141, the processing module 15 calculates the relative signal strength of each antenna 13 reading the new electronic tag 141, and then determines the position where the new electronic tag 141 is placed according to the magnitude difference of the relative signal strength.

In a variation, when the door opening and closing information indicates that the number of door bodies whose opening and closing states are switched during two times of reading the electronic tag signal is one, the compartment 11 corresponding to the door whose opening and closing state is switched is determined as the target compartment. Therefore, before and after the new electronic tag 141 is placed in the refrigeration device 1, if only one door is opened or closed, the compartment 11 in which the door is opened or closed can be intuitively determined as the compartment 11 in which the new electronic tag 141 is located.

In a typical application scenario, assuming that a user only opens a first door corresponding to the first compartment 111, after the user completes food storage and taking and closes the first door, the processing module 15 may control the reader 12 to successively start the first antenna 131 and the second antenna 132 to perform signal reading operation, and combine the results read by the two antennas 13 to compare with the electronic tag signal read last time. If there is a new electronic tag 141, since only the first door is opened during the new electronic tag 141, it is intuitively determined that the storage location of the new electronic tag 141 is the first compartment 111.

In one embodiment, each time all the doors of the refrigeration appliance 1 are closed, the processing module 15 executes the steps of the positioning method shown in fig. 3 to update the location information of the new electronic tag 141 that may be present in time.

Specifically, if only one door is switched to the opened or closed state during the period from the last time all the doors are closed to the present time, after the steps S101 and S102 are executed, if the new electronic tag 141 is found to exist, it can be intuitively determined that the new electronic tag 141 is located in the compartment 11 corresponding to the opened or closed door. In other words, in this scenario, the processing module 15 may only obtain the tag IDs of the electronic tags 14 read by the first antenna 131 and the second antenna 132, and may complete the positioning operation of the newly added electronic tag 141.

Further, from the last time all the doors are closed to the present time all the doors are closed, if the switching of the on-off state of the plurality of doors occurs during the period, the processing module 15 obtains the tag IDs of the electronic tags 14 read by the first antenna 131 and the second antenna 132, and obtains the relative signal strength (or the received signal strength) of each tag ID, and then locates the new electronic tag 141 by executing the steps S101 to S103.

In one implementation, the processing module 15 may execute the steps of the positioning method shown in fig. 3 according to a user instruction. At this time, the electronic tag signal read last time may be the electronic tag signal read by the first antenna 131 and the second antenna 132 last time the step of the positioning method shown in fig. 3 was executed in response to the user instruction. In this example, during the two previous and subsequent times of receiving the user instruction, the same door may be switched to the open/close state a plurality of times, and the number of doors to which the switching to the open/close state occurs may be plural.

In a variation, when the door opening and closing information indicates that the number of the door bodies whose opening and closing states are switched during two times of reading the electronic tag signals is one, and the signal strength of the newly added electronic tag 141 read by the antenna 13 disposed in the compartment 11 corresponding to the door body whose opening and closing states are switched is greater than the signal strength of the newly added electronic tag 141 read by the other antenna 13, the processing module 15 may determine the compartment 11 corresponding to the door body whose opening and closing states are switched as the target compartment. Therefore, even if the number of the door bodies switched between the door opening and closing states is one, the door opening and closing states are still combined with the relative signal intensity to carry out accurate judgment, and the positioning accuracy of the newly added electronic tag 141 is improved.

In one implementation, the door opening and closing information of the door body can be acquired by a sensor (not shown) associated with the door body.

Fig. 5 is a schematic view of a third refrigeration appliance according to an embodiment of the present invention. This embodiment will be described in detail only with respect to the differences from the embodiment shown in fig. 1 described above.

Specifically, referring to fig. 5, the refrigeration device 1 of the present embodiment is different from the refrigeration device 1 shown in fig. 1 described above in that: the first antenna 131 includes a plurality of first antenna modules 131a, the second antenna 132 includes a plurality of second antenna modules 132a, the plurality of first antenna modules 131a and the plurality of second antenna modules 132a form a plurality of antenna groups 133 in a one-to-one correspondence manner, wherein a connection direction of the first antenna module 131a and the second antenna module 132a included in each antenna group 133 is parallel to the second direction 16. Therefore, by arranging a plurality of antenna groups 133, the signal reading ranges of the first compartment 11 and the second compartment 12 are covered more completely, and the influence of shielding objects on the signal reading result is reduced or even eliminated better, wherein the shielding objects can be metal objects, liquid and the like placed in the refrigeration appliance 1.

Although fig. 5 illustrates that the number of the first antenna module 131a and the second antenna module 132a is two, in practical applications, the number of the antenna modules included in each of the first antenna 131 and the second antenna 132 may be three, four, or even more.

In one implementation, the plurality of first antenna modules 131a may be uniformly distributed on one side of the first compartment 111 away from the second compartment 112, and the plurality of second antenna modules 132a may be uniformly distributed on the other side of the second compartment 11 away from the first compartment 111. Therefore, the number of antenna groups 133 can be minimized while ensuring that the signal reading range covers the first compartment 111 and the second compartment 112 in all directions, which is beneficial to reducing the cost.

Taking the side by side refrigerator shown in fig. 5 as an example, the plurality of first antenna modules 131a may be uniformly distributed on the first wall 111a along the height direction (illustrated as the z direction), and correspondingly, the plurality of second antenna modules 132a may be uniformly distributed on the fourth wall 112b along the z direction.

When the dual-door refrigerator shown in fig. 2 is also provided with a plurality of antenna groups 133, a plurality of first antenna modules 131a may be uniformly distributed on the first wall 111a along the width direction (x direction shown in the figure), and correspondingly, a plurality of second antenna modules 132a may be uniformly distributed on the fourth wall 112b along the x direction.

In a modification, referring to fig. 5, on the basis of ensuring that the plurality of first antenna modules 131a are evenly distributed along the z-direction, the distance from a part of the plurality of first antenna modules 131a to the opening of the first compartment 111 may be different from the distance from the remaining first antenna modules 131a to the opening of the first compartment 111 along the depth direction of the refrigeration appliance 1. The second antenna modules 132a located in the second compartment 111 are disposed according to the positions of the corresponding first antenna modules 131 a.

Therefore, for the refrigeration device 1 with a large depth, on the basis of ensuring that the distances between the adjacent antenna modules in the z direction are equal, the antenna modules are arranged in a staggered manner in the depth direction, so that the formed antenna groups 133 can better detect the electronic tags 14 positioned at the corners of the first compartment 111 and the second compartment 112.

In one specific implementation, in the step S101, the electronic tag signal read by the first antenna 131 may be a combined duplicate removal result of the electronic tag signals read by the respective first antenna modules 131a, and the electronic tag signal read by the second antenna 132 may be a combined duplicate removal result of the electronic tag signals read by the respective second antenna modules 132 a. Therefore, even if the electronic tag 14 is missed due to the influence of the shielding object and other factors on the individual antenna module, the reading total rate of the electronic tag 14 in the refrigeration device 1 can be increased to the maximum by complementing the reading results of other antenna modules.

In one implementation, the step S103 may include the steps of: when more than one first antenna module 131a reads the first electronic tag signal of the newly added electronic tag 141, the first electronic tag signal with the maximum signal intensity in the more than one first electronic tag signal 131a is determined as a reference first electronic tag signal, the second electronic tag signal read by the second antenna module 132a belonging to the same antenna group 133 as the first antenna module which reads the reference first electronic tag signal is determined as a reference second electronic tag signal, and the target compartment where the newly added electronic tag 141 is located is determined according to the difference between the reference first electronic tag signal and the reference second electronic tag signal.

Therefore, the new electronic tag 141 is located according to the signal reading result of the antenna set 133 to which the first antenna module 131a closest to the new electronic tag 141 belongs, with the first antenna 131 as the determination reference.

In a variation, the step S103 may include the steps of: when more than one second antenna module 132a reads the second electronic tag signal of the newly added electronic tag 141, the second electronic tag signal with the maximum signal intensity among the more than one second electronic tag signals is determined as the reference second electronic tag signal, the first electronic tag signal read by the first antenna module 131a belonging to the same antenna group 133 as the second antenna module 132a which reads the reference second electronic tag signal is determined as the reference first electronic tag signal, and the target compartment where the newly added electronic tag 141 is located is determined according to the difference between the reference first electronic tag signal and the reference second electronic tag signal.

Therefore, the second antenna 132 is used as a determination reference, and the newly added electronic tag is located according to the signal reading result of the antenna group 133 to which the second antenna module 132a closest to the newly added electronic tag 141 belongs.

In a variation, the step S103 may include the steps of: when more than one antenna group 133 reads the electronic tag signal of the newly added electronic tag 141, the antenna group 133 to which the first antenna module 131a or the second antenna module 132a with the maximum signal intensity belongs is determined as a reference antenna group, and the target compartment where the newly added electronic tag 141 is located is determined according to the difference between the first electronic tag signal and the second electronic tag signal read by the reference antenna group.

Thus, the newly added electronic tag 141 is positioned based on the signal read result of the antenna group 133 closest to the newly added electronic tag 141, with the entire antenna group 133 as a determination criterion.

Specifically, the maximum signal strength may refer to the maximum received signal strength, or may refer to the maximum relative signal strength.

For example, in the scenario of the multi-antenna group 133 shown in fig. 5, after all the door bodies of the refrigeration appliance 1 are closed, the processing module 15 may control the reader 12 to sequentially open the first antenna module 131a and the second antenna module 132a for signal reading operation, and combine the results read by the antenna modules and compare the results with the electronic tag signals read last time. If there is a newly added electronic tag 141, according to the received signal strength of the newly added electronic tag 141 read by each antenna module, the processing module 15 selects the data of the antenna group 133 where the antenna module with the strongest received signal strength is located, and calculates the relative signal strength of the first electronic tag signal and the relative signal strength of the second electronic tag signal based on the data, so as to determine the compartment 11 where the newly added electronic tag 141 is stored.

In one specific implementation, for a plurality of compartments 11 included in the refrigeration device 1, each compartment 11 may be provided with at least one antenna 13, and a reading range of each antenna 13 at least covers the corresponding compartment 11.

Specifically, the number of the plurality of compartments 11 can be n, wherein n is more than or equal to 2.

Further, the processing module 15 may be in communication with each of the antennas 13 and configured to perform the steps illustrated in fig. 6. Fig. 6 is a flowchart of a second electronic tag positioning method according to an embodiment of the present invention. By performing the method steps shown in fig. 6, the processing module 15 is able to precisely locate the electronic tag 14 at a specific position in the refrigeration device 1 shown in fig. 7 to 12 described below. That is, the processing module 15 executes the method steps shown in fig. 6 to determine in which shielding compartment 113 of the refrigeration appliance 1 shown in fig. 7 to 9 described below the electronic tag 14 is located, or the processing module 15 executes the method steps shown in fig. 6 to determine in which orientation compartment 114 of the refrigeration appliance 1 shown in fig. 11 and 12 described below the electronic tag 14 is located.

Specifically, referring to fig. 6, the method for locating the electronic tag 14 may include the following steps:

step S201, obtaining the current electronic tag signal of each compartment 11;

step S202, determining whether there is a new electronic tag 141 in each of the compartments 11 according to a comparison result between the current electronic tag signal and the last electronic tag signal of each of the compartments 11.

Thus, according to the scheme of the embodiment, the present electronic tag signal of each compartment 11 is obtained at least according to the antenna 13 correspondingly disposed in each compartment 11, and then whether the new electronic tag 141 exists in each compartment 11 is determined by comparing with the corresponding historical data, so that accurate positioning of the electronic tag 14 in the refrigeration appliance 1 is possible.

Further, for each compartment 11, the current electronic tag signal of the compartment 11 is the electronic tag signal of the electronic tag 14 in the current compartment 11. This time is relative to the electronic tag signal of the electronic tag 14 in the compartment 11 obtained when the positioning method described in this embodiment was last executed.

Further, the last electronic tag signal may be stored in the storage unit in advance.

In one specific implementation, in step S201, for each compartment 11, the current electronic tag signal of the compartment 11 is determined at least according to the electronic tag signal read this time by the antenna 13 corresponding to the compartment 11.

For example, when the antenna 13 corresponding to the compartment 11 is used to read only the electronic tag signal of the electronic tag 14 in the compartment 11, the combined and de-duplicated electronic tag signals read this time by all the antennas 13 corresponding to the compartment 11 may be determined as the electronic tag signal of the compartment 11 this time.

Specifically, it is possible to ensure that the antenna 13 corresponding to the compartment 11 only reads the electronic tag signal of the electronic tag 14 in the compartment 11 by providing the shielding structure 17 in the compartment 11.

For another example, when the antenna 13 corresponding to the compartment 11 may read the electronic tag signals of the plurality of compartments 11 including the compartment 11, the present electronic tag signal of the compartment 11 may be determined from the signal reading result of the antenna 13 corresponding to each of the plurality of compartments 11 including the compartment 11.

Specifically, the reading direction of the antenna 13 corresponding to each compartment 11 may be limited by setting the directional antenna 134, and then the current electronic tag signal of the compartment 11 is determined by combining the signal reading result of the directional antenna 134 corresponding to each compartment 11 and the arrangement rule of each compartment 11.

In one implementation, the step S202 may include the steps of: for each compartment 11, acquiring door opening and closing information of a door corresponding to the compartment 11 during two times of acquiring electronic tag signals of the compartment 11; and when the door opening and closing information is the door opening and closing state switching, determining whether a newly added electronic tag 141 exists in the chamber 11 according to the comparison result.

Therefore, the positioning accuracy of the electronic tag 14 is improved by combining the door opening and closing information. Specifically, the door opening and closing information may be used as a predetermined condition, and when the door opening and closing state switching occurs during the two previous times and the subsequent times of executing the positioning scheme described in this embodiment in the compartment 11, it may be considered that there is a possibility that the user inserts the additional electronic tag 141 into the compartment 11. Therefore, when the door opening and closing information indicates that the door opening and closing state switching occurs, the processing module 15 compares the obtained current electronic tag signal and the last electronic tag signal of the compartment 11 to determine whether the newly added electronic tag 141 is indeed present in the compartment 11.

For example, when the step S202 is executed, the door opening and closing information of each chamber 11 during the period of obtaining the electronic tag signal of the chamber 11 twice may be obtained first, and the door opening and closing information is the chamber 11 in which the door opening and closing state switching occurs, and then the comparison operation with the history data is further executed; and for the chamber 11 of which the door opening and closing information is that the door opening and closing state switching does not occur, the subsequent comparison operation is not executed, and the fact that the electronic tag 141 is not additionally arranged in the chamber 11 is directly judged.

In one implementation, the step S202 may include the steps of: for each compartment 11, comparing the number of the electronic tag signals included in the current electronic tag signal with the number of the electronic tag signals included in the last electronic tag signal, and determining that a new electronic tag 141 exists in the compartment 11 when the number of the electronic tag signals included in the current electronic tag signal is greater than the number of the electronic tag signals included in the last electronic tag signal.

Therefore, for the same compartment 11, it can be accurately determined whether there is a new electronic tag 141 in the compartment 11 this time, based on the difference in the number of electronic tag signals generated by the electronic tags 14 in the compartment 11 acquired twice before and after.

In a variation, the step S202 may include the steps of: for each compartment 11, comparing the tag ID included in the current electronic tag signal with the tag ID included in the last electronic tag signal, and determining that the new electronic tag 141 exists in the compartment 11 when the tag ID included in the current electronic tag signal does not belong to the last electronic tag signal.

For the same compartment 11, there may be a case where the number of electronic tag signals generated by the electronic tag 14 in the compartment 11 acquired twice before and after the same compartment 11 is the same, such as a user taking out one stored object 2 from the compartment 11 and putting another new stored object 2. Thus, in the present embodiment, the tag IDs of the electronic tags 14 in the compartment 11 acquired twice before and after are used as a comparison basis, and accurate identification of the newly added electronic tag 141 is ensured based on the unique characteristics of the tag IDs.

In a variation, when the number of electronic tag signals included in the current electronic tag signal is greater than the number of electronic tag signals included in the last electronic tag signal, and a tag ID included in the current electronic tag signal does not belong to the last electronic tag signal, it is determined that a newly added electronic tag exists in the compartment.

Therefore, the number of the electronic tag signals and the tag ID are used as a comparison basis, and the accuracy of the comparison result is improved.

A detailed description of a specific implementation of the positioning of the target compartment in which the electronic tag 14 is located on the basis of the shielding structure 17 and the antenna 13 is given below.

Fig. 7 is a schematic view of a fourth refrigeration appliance according to an embodiment of the present invention.

The difference from the refrigeration device 1 shown in fig. 1, 2 and 5 is that the refrigeration device 1 of the present embodiment may include at least one shielding compartment 113, and an antenna 13 disposed corresponding to each shielding compartment 113; and a shielding structure 17, wherein for each shielding chamber 113, the shielding structure 17 is disposed between the shielding chamber 113 and the other chambers 11 included in the refrigeration appliance 1 to limit the reading range of the antenna 13 corresponding to the shielding chamber 113.

In one embodiment, the shielding structure 17 may be embedded in a partition wall 16 for separating the shielding compartment 113 from the other compartments 11 of the refrigeration appliance 1.

In a variant, the partition wall 16 separating the shielding compartment 113 from the other compartments 11 of the refrigeration appliance 1 may comprise a shielding material to form the shielding structure 17.

Specifically, the shielding material may include, but is not limited to, a metal plate, a metal mesh, a composite shielding material, and the like.

Further, the antenna 13 may be an omni-directional antenna.

Further, the shape and the specification of the antenna 13 provided in the different shield compartments 113 may be the same or different. For example, for a shielding compartment 113 with a large volume, the area of the corresponding antenna 13 may be increased appropriately to ensure that the receiving range covers the shielding compartment 113.

Taking the side by side refrigerator shown in fig. 7 as an example, the shielding structure 17 may be embedded in the partition wall 16 for use between the left and right compartments 11. Thus, the shield compartments 113 are formed by the left and right compartments, and a corresponding antenna 13 is provided in each shield compartment 113.

Taking the multi-compartment refrigerator shown in fig. 8 as an example, the shielding structure 17 may be disposed on the partition wall 16 between the left compartment 11 and the two right compartments 11, and the partition wall 16 between the two right compartments 11. Thus, the three compartments 11 each form the shield compartment 113, and a corresponding antenna 13 is provided in each shield compartment 113. The left compartment 11 may be a freezing compartment, the upper compartment on the right side may be a refrigerating compartment, and the lower compartment on the right side may be a temperature-variable compartment.

Taking the three-door refrigerator shown in fig. 9 as an example, the partition walls 16 between two adjacent compartments 11 may be embedded with the shielding structure 16. Thus, the upper, middle and lower chambers 11 form the shielding chambers 113, and each shielding chamber 113 is provided with a corresponding antenna 13. The uppermost compartment 11 may be a refrigerating compartment, the middle compartment 11 may be a temperature-changing compartment, and the lowermost compartment 11 may be a freezing compartment.

Since the housing itself of the main body 10 is made of a metal material, each of the compartments 11 shown in fig. 7 to 9 can be divided into the shield compartments 113 independent of each other by the shield material 17 provided on the partition wall 16. Further, an antenna 13 is disposed between the inner container and the outer container of each shielding chamber 113, and under the effect of the outer container and the shielding structure 17 covering the shielding chamber 113, the antenna 13 can only read the electronic tag signal of the electronic tag located in the shielding chamber 113.

In one embodiment, a plurality of antennas 13 may be distributed in a larger volume compartment 11, such as the left shielding compartment 113 in fig. 8. Accordingly, the processing module 15 may combine and deduplicate the electronic tag signals respectively collected by all the antennas 13 corresponding to the same shielding compartment 113 to obtain the electronic tag signal of the shielding compartment 113.

It should be noted that the shielding compartment 113 is used for describing functionally the compartment 11 that uses the shielding scheme for positioning the electronic tag 14, and in practical applications, the shielding compartment 113 may be any one or more of different compartments such as a freezing compartment, a refrigerating compartment and a temperature-changing compartment of the refrigeration appliance 1.

Further, the processing module 15 may be in communication with each of the antennas 13, and the processing module 15 may be configured to perform the steps shown in fig. 10. Fig. 10 is a flowchart of a third method for locating the electronic tag 14 according to the embodiment of the present invention. By performing the method steps shown in fig. 10, the processing module 15 is able to precisely locate the specific position of the electronic tag 14 within the refrigeration appliance 1 shown in fig. 7 to 9. That is, the processing module 15 executes the method steps shown in fig. 10 to determine that the electronic tag 14 is specifically located in the specific shielding compartment 113 of the refrigeration appliance 1 shown in fig. 7 to 6.

Specifically, referring to fig. 10, the positioning method may include the steps of:

step S301, for each shielding room 113, determining an electronic tag signal read by the antenna 13 corresponding to the shielding room 113 as the current electronic tag signal of the shielding room 113;

step S302, determining whether there is a new electronic tag 141 in the shielding chamber 113 according to a comparison result between the current electronic tag signal and the last electronic tag signal of the shielding chamber 113.

Thus, by the cooperation of the antenna 13 and the shielding structure 17, the electronic tag 14 can be accurately positioned. Specifically, the shielding structure 17 limits the ability of the antenna 13 to read the electronic tag signal to the shielding compartment 113 corresponding to the antenna 13, so that it is possible to set the antenna 13 exclusively for reading the electronic tag signal in the specific compartment 11. Further, the shielding structure 17 is further adapted to shield the antenna 13 disposed in the other compartment 11 from reading the electronic tag signal of the electronic tag 14 located in the shielding compartment 113, so as to avoid the identification deviation of the other compartment 11 when performing the positioning operation of the electronic tag 14. Further, since the antenna 13 is dedicated to reading the electronic tag signal in the shielding chamber 113, when the antenna 13 reads the newly added electronic tag signal which has not been read last time, it can be intuitively determined that the newly added electronic tag 141 exists in the shielding chamber 113.

Specifically, the step S301 may be regarded as a specific implementation of the step S201 in the embodiment shown in fig. 6.

In one specific implementation, in the step S301, the processing module 15 may control the reader 12 to activate the antennas 13 one by one, so as to obtain the current electronic tag signal of the corresponding shielded room 113 read by each antenna 13.

In a variation, the door opening and closing information may be combined, and when it is detected that the door corresponding to a certain shielding compartment 113 is switched in the door opening and closing state, the processing module 15 may obtain the current electronic tag signal read by the antenna 13 corresponding to the shielding compartment 113, and compare the current electronic tag signal with the last electronic tag signal stored in advance, so as to determine whether the new electronic tag 141 exists in the shielding compartment 113.

In one specific implementation, the scheme of positioning the electronic tag located in the two compartments 11 arranged along the second direction 16 based on the symmetrical antenna (hereinafter, referred to as the symmetrical antenna scheme) shown in fig. 1 to 5 and the scheme of positioning the electronic tag 14 located in the shielding compartment 113 based on the shielding structure 17 and the antenna 13 (hereinafter, referred to as the shielding scheme) shown in fig. 7 to 10 can be implemented in combination.

For example, the refrigeration device 1 may comprise three or more compartments 11, wherein two compartments 11 arranged in the second direction 16 may correspond to the first compartment 111 and the second compartment 112 in the above-described embodiment shown in fig. 1 to 5, and the remaining one compartment 11 may be the shielding compartment 113. That is, the shield compartment 113 is disposed outside the region surrounded by the first compartment 111 and the second compartment 112.

Taking the multi-compartment refrigerator shown in fig. 8 as an example, the upper and lower compartments 11 located on the right side may be equivalent to the two compartments 11 of the double-door refrigerator shown in fig. 2, and the partition wall 16 between the upper right-side compartment 11 and the lower right-side compartment 11 is not provided with the shielding structure 17. Further, in the height direction (the illustrated z direction), the first antenna 131 is disposed above the right upper compartment 11, and the second antenna 132 is disposed below the right lower compartment 11. The shielding structure 17 is still embedded in the partition wall 16 between the left compartment 11 and the two upper and lower compartments 11 on the right.

Thereby, a combined implementation of a shielding scheme and a symmetric antenna scheme can be formed.

Further, due to the existence of the shielding structure 17, the first antenna 131 and the second antenna 132 disposed in the upper and lower chambers 11 on the right side cannot read the electronic tag signal of the electronic tag 14 in the shielding chamber 113 on the left side, so that the shielding scheme and the symmetric antenna scheme can be implemented independently without mutual interference.

In one implementation, the processing module 15 may respectively obtain the electronic tag signals read by each antenna 13, and perform a corresponding positioning operation according to the attribute of the compartment 11 corresponding to each antenna 13.

For example, when the compartment 11 corresponding to the antenna 13 is the shielding compartment 113, it may be directly determined whether the new electronic tag 141 exists according to the electronic tag signal read by the antenna 13 this time and the electronic tag signal read last time.

For another example, when the compartment 11 corresponding to the antenna 13 is the first compartment 111 or the second compartment 112, the scheme of the embodiment shown in fig. 3 is executed according to the signal reading result of the other antenna 13 constituting the antenna group 133 with the antenna 13, so as to determine whether there are the new electronic tag 141 and the target compartment where the new electronic tag 141 is located.

In a variation, the corresponding antenna 13 may be started to perform a signal reading operation according to the compartment 11 corresponding to the door with the switching of the switch state, and then the corresponding positioning operation may be performed according to the attribute of the compartment 11, in combination with the door opening and closing information.

In one implementation, along the second direction 16, the shielding compartment 113 may be located on a side of the first compartment 111 away from the second compartment 112, or the shielding compartment 113 may be located on a side of the second compartment 112 away from the first compartment 111. Therefore, the three-door refrigerator arranged along the same direction 16 can accurately position the electronic tag 14 placed in any one of the three compartments 11 by combining the symmetrical antenna and the shielding structure 17.

Taking the three-door refrigerator shown in fig. 9 as an example, if the shielding structure 17 in the partition wall 16 between the uppermost compartment 11 and the middle compartment 11 is removed, the first antenna 131 is disposed above the uppermost compartment 11, and the second antenna 132 is disposed below the middle compartment 11, the two compartments 11 may be equivalent to the two compartments 11 of the two-door refrigerator shown in fig. 2. Thereby, a combined implementation of the shielding scheme and the symmetric antenna scheme can be formed as well.

Further, due to the existence of the shielding structure 17, the second antenna 132 disposed between the uppermost first antenna 131 and the middle compartment 11 and the lowermost compartment 11 cannot read the electronic tag signal of the electronic tag 14 in the lowermost compartment 11, so that the shielding scheme and the symmetric antenna scheme can be implemented independently from each other without mutual interference.

A detailed description of a specific implementation of the positioning of the target compartment in which the electronic tag 14 is located based on the directional antenna 134 follows.

Fig. 11 is a schematic view of a seventh refrigeration appliance according to the embodiment of the present invention.

The difference from the refrigeration device 1 shown in fig. 1, 2 and 5 is that the refrigeration device 1 of the present embodiment may include: a plurality of orientation compartments 114 arranged along the first direction 18; a directional antenna 134 corresponding to each directional chamber 114, wherein the reading direction (indicated by an arrow with a signal in the figure) of each directional antenna 134 is the same, and the reading range of each directional antenna 134 at least covers the corresponding directional chamber 114. Wherein the reading direction may be a signal transmission direction of the directional antenna 134.

Specifically, along the first direction 18, the plurality of directional antennas 134 may be disposed on the same side of the corresponding directional compartment 114.

Further, the reading direction of the directional antenna 134 may be along the first direction 18, or opposite to the first direction 18.

Taking the side-by-side refrigerator shown in fig. 11 as an example, the two left and right compartments 11 of the side-by-side refrigerator can be regarded as two directional compartments 114 arranged along the first direction 18. At this time, the first direction 18 is parallel to the width direction (illustrated x direction) of the refrigeration apparatus 1.

With continued reference to fig. 11, two directional compartments 114 are each provided with one of the directional antennas 134. Assuming that the reading direction of the directional antennas 134 is the direction indicated by the arrows in the figure, two directional antennas 134 may be respectively disposed at the left side of the corresponding directional chamber 114, so that each directional antenna 134 can at least read the electronic tag signal in the corresponding directional chamber 114.

Further, regarding the two left and right directional compartments 114 shown in fig. 11, the directional antenna 134 corresponding to the left directional compartment 114 can also read the electronic tag signal in the right directional compartment 114. Due to the limitation of the reading direction, the directional antenna 134 corresponding to the directional chamber 114 on the right side cannot read the electronic tag signal in the directional chamber 114 on the left side, but only the electronic tag signal in the directional chamber 114 on the right side.

In a variation, the reading direction of the directional antenna 134 may be opposite to the direction indicated by the arrow in fig. 11, and accordingly, the corresponding directional antenna 134 of each of the left and right directional compartments 114 may be disposed at the right side of the corresponding directional compartment 114. In this case, the directional antenna 134 corresponding to the directional chamber 114 on the right side can read the electronic tag signals in the two directional chambers 114, and the directional antenna 134 corresponding to the directional chamber 114 on the left side is suitable for reading the electronic tag signals in the directional chamber 114 on the left side.

Taking the three-door refrigerator shown in fig. 12 as an example, the upper, middle and lower three compartments 11 of the three-door refrigerator can be regarded as three directional compartments 114 arranged along the first direction 18. In this case, the first direction 18 is parallel to the height direction (illustrated as the z direction) of the refrigeration apparatus 1.

With continued reference to fig. 12, three directional compartments 114 are each provided with one of the directional antennas 134. Assuming that the reading direction of the directional antenna 134 is the direction indicated by the arrow in the figure, three directional antennas 134 may be respectively disposed on the top of the corresponding directional chamber 114, so that each directional antenna 134 can at least read the electronic tag signal in the corresponding directional chamber 114.

Further, for the three directional compartments 114 shown in fig. 12, the directional antenna 134 corresponding to the directional compartment 114 located above can read the electronic tag signals in all three directional compartments 114. The directional antenna 134 corresponding to the middle directional compartment 114 can read the electronic tag signals in the middle and lower directional compartments 114, but cannot read the electronic tag signal in the uppermost directional compartment 114, and is limited by the reading direction, and the directional antenna 134 corresponding to the lowermost directional compartment 114 cannot read the electronic tag signals in the upper two directional compartments 114 but can only read the electronic tag signals in the corresponding directional compartment 114.

In a variation, the reading direction of the directional antenna 134 may be opposite to the direction indicated by the arrow in fig. 12, and accordingly, the corresponding directional antenna 134 of each of the upper, middle and lower three directional compartments 114 may be disposed at the bottom of the corresponding directional compartment 114. At this time, the directional antenna 134 corresponding to the lowermost directional compartment 114 can read the electronic tag signals in all three directional compartments 114. The orientation compartment 114 located in the middle can read the electronic tag signals in the two orientation compartments 114, the orientation compartment 114 located in the middle and the orientation compartment 114 located at the top. The directional antenna 134 corresponding to the uppermost directional compartment 114 is adapted to read the electronic tag signal in the corresponding directional compartment 114.

In one implementation, the shape, dimensions, etc. of directional antennas 134 corresponding to different directional compartments 114 may or may not be the same.

It should be noted that the directional compartment 114 is used for describing functionally the compartment 11 that uses the shielding scheme for positioning the electronic tag 14, and in practical applications, the directional compartment 114 may be any one or more of different compartments such as a freezing compartment, a refrigerating compartment and a temperature-changing compartment of the refrigeration appliance 1.

Further, the processing module 15 may be in communication with each of the directional antennas 134, and the processing module 15 may be configured to perform the steps shown in fig. 13. Fig. 13 is a flowchart of a fourth electronic tag positioning method according to an embodiment of the present invention. By performing the method steps illustrated in fig. 13, the processing module 15 is able to precisely locate the specific position of the electronic tag 14 within the refrigeration appliance 1 illustrated in fig. 11 and 12. That is, the processing module 15 executes the method steps illustrated in fig. 13 to determine that the electronic tag 14 is specifically located in the specific orientation compartment 114 of the refrigeration appliance 1 illustrated in fig. 11 and 12.

Specifically, referring to fig. 13, the positioning method may include the steps of:

step S401, for each directional room 114, at least obtaining the electronic tag signal of the directional room 114 according to the electronic tag signal read by the directional antenna 134 corresponding to the directional room 114 at this time;

step S402, determining whether there is a new electronic tag 141 in the orientation chamber 114 according to a comparison result between the current electronic tag signal and the last electronic tag signal of the orientation chamber 114.

Therefore, by adopting the scheme of the directional antenna 134, the directional antenna 134 is sequentially arranged on the partition (namely the partition wall 16) between the directional chambers 11 and the edge of the box body (namely the body 10) according to the distribution direction of the directional chambers 11, and by utilizing the characteristic that the directional antenna 134 reads signals in a specific direction, when the newly added electronic tag 141 is determined to exist according to the comparison result with the historical data, the chamber 11 where the electronic tag 14 is located can be intuitively and accurately determined according to the arrangement position of the directional antenna 134.

Specifically, the step S401 may be regarded as a specific implementation of the step S201 in the embodiment shown in fig. 6.

In one specific implementation, for the directional compartment 114 located at the forefront along the reading direction, since the directional antenna 134 corresponding to the directional compartment 114 only reads the electronic tag signal of the directional compartment 114, the electronic tag signal read by the directional antenna 134 corresponding to the directional compartment 114 this time is the electronic tag signal of the directional compartment 114 this time.

Taking the side-by-side refrigerator shown in fig. 11 as an example, according to the reading direction indicated by the illustrated signal arrow, the electronic tag signal read by the directional antenna 134 corresponding to the directional chamber 114 located on the right side along the first direction 18 at this time is the electronic tag signal of the directional chamber 114 at this time.

Taking the three-door refrigerator shown in fig. 12 as an example, according to the reading direction indicated by the illustrated signal arrow, the electronic tag signal read by the directional antenna 134 corresponding to the directional chamber 114 located at the lowest position along the first direction 18 this time is the electronic tag signal of the directional chamber 114 this time.

In one implementation, the wiring direction of the plurality of directional antennas 134 may be parallel to the first direction 18 to optimize the reading accuracy of the electronic tag 14.

In one specific implementation, for the directional compartment 114 located at the rear in the reading direction, since the directional antenna 134 corresponding to the directional compartment 114 may read the electronic tag signals in all compartments 11 located at the front in the reading direction, it is necessary to determine the current electronic tag signal of the directional compartment 114 comprehensively by combining the current electronic tag signals of other compartments 11 located at the front of the directional compartment 114 in the reading direction.

Specifically, fig. 14 is a flowchart of one embodiment of step S401 in fig. 13. Referring to fig. 14, the step S401 may include the steps of:

step S4011, for each directional room 114, obtaining an electronic tag signal read by the directional antenna 134 corresponding to the directional room 114 at this time, and recording the electronic tag signal as a first electronic tag signal;

step S4012, acquiring an electronic tag signal read at this time by the directional antenna 134 corresponding to the directional compartment 114 located before the directional compartment 114 along the reading direction, and recording the electronic tag signal as a second electronic tag signal;

step S4013 determines a portion of the first electronic tag signal that is not overlapped with the second electronic tag signal as the current electronic tag signal of the directional compartment 114.

Therefore, the electronic tag signals read by the directional antennas 134 corresponding to all directional compartments 114 located in front of the directional compartment 114 to be currently determined in the reading direction at this time can be accurately obtained, and whether the new electronic tag 141 exists is determined by comparing the electronic tag signals with historical data.

Specifically, the part of the first electronic tag signal that is not overlapped with the second electronic tag signal may refer to a part of the tag ID that is not overlapped.

Further, in step S4013, a portion of the tag ID included in the first electronic tag signal that is also present in the second electronic tag signal is removed, and the rest is the current electronic tag signal of the orientation compartment 114.

Taking the side-by-side refrigerator shown in fig. 11 as an example, two directional antennas 134 are sequentially started to perform signal reading operation, and according to the reading direction indicated by the signal arrow shown in the figure, when the current electronic tag signal of the directional compartment 114 located on the left side along the first direction 18 is acquired, the electronic tag signal (i.e., the first electronic tag signal) read by the directional antenna 134 corresponding to the directional compartment 114 on the left side at this time may be removed from the electronic tag signal (i.e., the second electronic tag signal) read by the directional antenna 134 corresponding to the directional compartment 114 on the right side at this time, so that the current electronic tag signal of the directional compartment 114 on the left side is acquired.

Taking the three-door refrigerator shown in fig. 12 as an example, the three directional antennas 134 are sequentially started to perform signal reading operation, and according to the reading direction indicated by the signal arrow shown in the figure, when the current electronic tag signal of the directional compartment 114 located in the middle along the first direction 18 is acquired, the electronic tag signal (i.e., the first electronic tag signal) read by the directional antenna 134 corresponding to the directional compartment 114 in the middle can be removed from the electronic tag signal (i.e., the second electronic tag signal) read by the directional antenna 134 corresponding to the directional compartment 114 at the lowest time, so that the current electronic tag signal of the directional compartment 114 in the middle can be acquired.

When the electronic tag signal of this time of the uppermost directional compartment 114 located along the first direction 18 is obtained, the first electronic tag signal is the electronic tag signal read by the directional antenna 134 corresponding to the uppermost directional compartment 114 this time, and the second electronic tag signal is the sum of the electronic tag signal read by the directional antenna 134 corresponding to the intermediate directional compartment 114 this time and the electronic tag signal read by the directional antenna 134 corresponding to the lowermost directional compartment 114 this time.

Further, the last electronic tag signal of the orientation room 114 may be obtained by performing the above steps S4011 to S4013 when the electronic tag 14 is located last time.

In one specific implementation, the door opening and closing information may be combined, and when the door opening and closing information of the door corresponding to a specific directional compartment 114 indicates that the door opening and closing state switching occurs, the first electronic tag signal read by the directional antenna 134 corresponding to the directional compartment 114 and the second electronic tag signals of all directional compartments 114 located before the directional compartment 114 along the reading direction are obtained, so as to determine the current electronic tag signal of the directional compartment 114.

In a variation, the plurality of directional antennas 134 may be activated sequentially along an activation direction, wherein the activation direction is opposite to a reading direction of the directional antennas 134. Therefore, the directional antennas 134 are sequentially started according to a specific sequence, and with the sequential start of the directional antennas 134, whether the newly added electronic tag 141 exists in the directional chamber 114 corresponding to the currently started directional antenna 134 can be determined in time without waiting until all the directional antennas 134 are completely started.

Specifically, in this variation, the step S401 may include the steps of: for each directional room 114, obtaining a tag signal read by a directional antenna 134 corresponding to the directional room 114 this time, and recording the tag signal as a first electronic tag signal; acquiring a tag signal read by the directional antenna 134 which is started before the directional antenna 134 corresponding to the directional chamber 114, and recording the tag signal as a third electronic tag signal; and determining the part of the first electronic tag signal which is not overlapped with the third electronic tag signal as the current electronic tag signal of the directional compartment 114.

Therefore, as the directional antennas 134 are sequentially started, whenever the first electronic tag signal read by the currently started directional antenna 134 is acquired, the electronic tag signals read by all the directional antennas 134 started before the directional antenna 134 are taken as the third electronic tag signal, so that the current electronic tag signal of the directional chamber 114 corresponding to the currently started qualitative antenna 134 is accurately acquired, and whether the new electronic tag 141 exists is determined by comparing the current electronic tag signal with historical data.

Taking the side-by-side refrigerator shown in fig. 11 as an example, according to a starting direction opposite to the reading direction indicated by the illustrated signal arrow, the directional antenna 134 corresponding to the directional chamber 114 on the right side is started first, and the electronic tag signal read by the directional antenna 134 this time is acquired. Since there is no other chamber 11 in front of the right directional chamber 114 along the reading direction, the electronic tag signal read by the directional antenna 134 corresponding to the right directional chamber 114 this time is the electronic tag signal of the right directional chamber 114 this time, and it is assumed that the electronic tag signal of the right directional chamber 114 this time includes the tag ID of one electronic tag 14, as shown in fig. 11. The processing module 15 further obtains the last electronic tag signal of the right directional compartment 114, so as to compare and determine whether there is a new electronic tag 141 in the right directional compartment 114. If the tag ID of the electronic tag 14 included in the current electronic tag signal also belongs to the last electronic tag signal of the right directional compartment 114, it can be determined that the electronic tag 14 located in the right directional compartment 114 is not the new electronic tag 141.

The tag ID of the electronic tag 14 read this time by the directional antenna 134 corresponding to the right directional chamber 114 is the second electronic tag signal.

Next, the directional antenna 134 corresponding to the directional chamber 114 on the left side is started, and the electronic tag signal read by the directional antenna 134 this time is obtained, that is, the first electronic tag signal. Assuming that the first electronic tag signal includes the tag IDs of two electronic tags 14, by comparing with the second electronic tag signal acquired before, it can be determined that the present electronic tag signal of the left directional compartment 114 includes the tag ID of one electronic tag 14.

The processing module 15 further obtains the last electronic tag signal of the left directional compartment 114, so as to compare and determine whether the new electronic tag 141 exists in the left directional compartment 114. If the tag ID of the electronic tag 14 included in the current electronic tag signal does not belong to the last electronic tag signal of the left directional chamber 114, the electronic tag 14 located in the left directional chamber 114 may be determined as the new electronic tag 141.

Taking the three-door refrigerator shown in fig. 12 as an example, according to a starting direction opposite to a reading direction indicated by a signal arrow shown in the figure, the directional antenna 134 corresponding to the lowermost directional compartment 114 is started first, and the electronic tag signal read by the directional antenna 134 this time is acquired. If no electronic tag 14 is placed in the lowermost orientation chamber 114, the current electronic tag signal of the lowermost orientation chamber 114 is zero.

Then, the directional antenna 134 corresponding to the middle directional chamber 114 is started, and the electronic tag signal read by the directional antenna 134 this time is acquired. If no electronic tag 14 is also placed in the middle orientation chamber 114, the electronic tag signal of the middle orientation chamber 114 is also zero.

Finally, the directional antenna 134 corresponding to the uppermost directional chamber 114 is started, and the electronic tag signal read by the directional antenna 134 this time is acquired. Assuming that the tag ID of one electronic tag 14 is read at this time, since the reading result obtained after the directional antenna 134 is activated is zero, it can be determined that the electronic tag 14 read this time is located in the uppermost directional chamber 114.

Further, the processing module 15 obtains the last electronic tag signal of the uppermost orientation compartment 114. Assuming that the tag ID of the electronic tag 14 read this time is not recorded in the electronic tag signal last time, it can be determined that the electronic tag 14 read this time is the new electronic tag 141.

In one implementation, the shielding scheme illustrated in fig. 6-14 above and the scheme of positioning the electronic tag 14 located in the directional compartment 114 based on the directional antenna 134 (hereinafter referred to as the directional scheme) may be implemented in combination.

For example, n ≧ 3, where two or more compartments 11 arranged along the first direction 18 may correspond to the orientation compartment 114 shown in FIGS. 11 and 12 described above, and the remaining compartment 11 may be the shield compartment 113. That is, the shielding compartment 113 is disposed outside the area surrounded by the plurality of directional compartments 114 arranged along the first direction 18.

In one implementation, the shield compartment 113 and the plurality of orientation compartments 114 may be arranged in the same direction.

Taking the three-door refrigerator shown in fig. 12 as an example, a shielding structure 17 may be provided on the partition wall 16 between the upper compartment 11 and the middle compartment 11, so that the upper compartment 11 is equivalent to a shielding compartment 113, and the middle compartment 11 and the lower compartment 11 are equivalent to a directional compartment 114.

Correspondingly, the antenna 13 disposed in the shielding compartment 113 may be a directional antenna or an omnidirectional antenna.

In a variant, the shielding compartment 113 and the plurality of orientation compartments 114 may be arranged in different directions.

Taking the multi-compartment refrigerator shown in fig. 8 as an example, the shielding structure 17 between the upper and lower compartments 11 near the right side may be removed, and the antennas 13 corresponding to the upper and lower compartments 11 are replaced by directional antennas 134 and respectively disposed on the same side along the reading direction, so that the upper and lower compartments 11 on the right side are equivalent to the directional compartment 114.

Thereby, a combined implementation of a shielding scheme and a directional scheme can be formed.

For another example, when the compartment 11 corresponding to the antenna 13 is the orientation compartment 114, the scheme shown in fig. 13 may be implemented to comprehensively determine the present electronic tag signal of the compartment 11 according to the reading results of the compartment 11 and the compartment 11 located in front of the compartment 11 along the reading direction, and further determine whether the new electronic tag 141 and the target compartment in which the new electronic tag 141 is located exist.

Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even if only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently expressed. In particular implementations, features from one or more dependent claims may be combined with features of the independent claims and features from respective independent claims may be combined in any appropriate manner and not merely in the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A refrigeration appliance (1) comprising: a plurality of compartments (11), characterized in that it further comprises:

the antenna (13) is arranged corresponding to each compartment (11), and the reading range of each antenna (13) at least covers the corresponding compartment (11);

a processing module (15) in communication with the antenna (13), the processing module (15) being configured to perform the steps of:

acquiring the current electronic tag signal of each compartment (11);

and determining whether a new electronic tag (141) exists in each chamber (11) according to the comparison result of the current electronic tag signal and the last electronic tag signal of each chamber (11).

2. The refrigeration appliance (1) according to claim 1, wherein the determining whether the new electronic tag (141) exists in each compartment (11) according to the comparison result between the current electronic tag signal and the last electronic tag signal of each compartment (11) comprises:

for each compartment (11), door opening and closing information of a door corresponding to the compartment (11) during the period of acquiring electronic tag signals of the compartment (11) twice before and after is acquired;

and when the door opening and closing information is the condition switching of the door opening and closing, determining whether a newly added electronic tag (141) exists in the compartment (11) according to the comparison result.

3. The refrigeration appliance (1) according to claim 1 or 2, wherein the determining whether the new electronic tag (141) exists in each compartment (11) according to the comparison result between the current electronic tag signal and the last electronic tag signal of each compartment (11) comprises:

for each compartment (11), comparing the number of the tag signals included in the current electronic tag signal with the number of the electronic tag signals included in the last electronic tag signal, and determining that a newly added electronic tag (141) exists in the compartment (11) when the number of the electronic tag signals included in the current electronic tag signal is greater than the number of the electronic tag signals included in the last electronic tag signal;

and/or the presence of a gas in the gas,

and for each chamber (11), comparing the tag ID included in the current electronic tag signal with the tag ID included in the last electronic tag signal, and determining that a newly added electronic tag (141) exists in the chamber (11) when the tag ID included in the current electronic tag signal does not belong to the last electronic tag signal.

4. The refrigeration appliance (1) according to claim 1, wherein the plurality of compartments (11) comprises a plurality of directional compartments (114) arranged along the first direction (18), and the antenna (13) corresponding to each compartment (11) comprises a directional antenna (134) corresponding to each directional compartment (114), wherein the reading directions of the directional antennas (134) are the same.

5. The refrigeration appliance (1) according to claim 4, wherein said obtaining of the present electronic tag signal of each of said compartments (11) comprises:

for each directional room (114), acquiring an electronic tag signal read by a directional antenna (134) corresponding to the directional room (114) at this time, and recording the electronic tag signal as a first electronic tag signal;

acquiring an electronic tag signal read this time by a directional antenna (134) corresponding to the directional chamber (114) located in front of the directional chamber (114) along the reading direction, and recording the electronic tag signal as a second electronic tag signal;

and determining the part of the first electronic tag signal which is not overlapped with the second electronic tag signal as the current electronic tag signal of the directional compartment (114).

6. The refrigeration appliance (1) according to claim 4, characterized in that the direction of the line of the plurality of directional antennas (134) is parallel to the first direction (18).

7. The refrigeration appliance (1) according to claim 4, characterized in that a plurality of the directional antennas (134) are activated in succession along an activation direction, wherein the activation direction is opposite to the reading direction.

8. The refrigeration appliance (1) according to claim 7, wherein said obtaining a present electronic tag signal of each of said compartments (11) comprises:

for each directional room (114), acquiring a tag signal read by a directional antenna (134) corresponding to the directional room (114) at this time, and recording the tag signal as a first electronic tag signal;

acquiring a tag signal read by a directional antenna (134) started before the directional antenna (134) corresponding to the directional chamber (114), and recording the tag signal as a third electronic tag signal;

and determining the part of the first electronic tag signal which is not overlapped with the third electronic tag signal as the current electronic tag signal of the directional compartment (114).

9. The refrigeration appliance (1) according to claim 1 or 2, wherein the plurality of compartments (11) comprises at least one shielded compartment (113), the refrigeration appliance (1) further comprising a shielding structure (17), for each shielded compartment (113), the shielding structure (17) being arranged between the shielded compartment (113) and the other compartments (11) comprised by the refrigeration appliance (1) to limit the reading range of the antenna (13) corresponding to the shielded compartment (113).

10. The refrigeration appliance (1) according to claim 9, wherein said obtaining a present electronic tag signal for each of said compartments (11) comprises:

and for each shielding chamber (113), determining the tag signal read by the antenna (13) corresponding to the shielding chamber (113) as the current electronic tag signal of the shielding chamber (113).

11. The refrigeration appliance (1) according to claim 9, wherein the shielding structure (17) is embedded in a partition wall (16) for separating the shielding compartment (113) from the other compartments (11) of the refrigeration appliance (1).

12. The refrigeration appliance (1) according to claim 9, characterized in that a partition wall (16) for separating the shielding compartment (113) from the other compartments (11) of the refrigeration appliance (1) comprises a shielding material to form the shielding structure (17).