TWI774555B - Indoor wireless positioning method - Google Patents

Abstract

An indoor wireless positioning method is suitable for a wireless positioning system to be applied to a work field with a plurality of grids. The wireless positioning system includes a plurality of wireless network signal transceivers, a management server, a gateway, a plurality of Label unit, and an artificial intelligence server. In the indoor wireless positioning method, in a step (F), the gateway integrates a signal strength combination received each time and a corresponding identification module into a position signal message, and the management server integrates the The location signal information is organized into a location signal information table. And in this step (G), the artificial intelligence server analyzes the position signal information table and simulates the signal strength combination on the grid without any label unit, and stores it according to the corresponding grid position coordinates According to the design of the corresponding position signal information, the artificial intelligence server can effectively simulate the signal information of all grids in the work area.

Description

Indoor wireless positioning method

The present invention relates to a positioning method, in particular to an indoor wireless positioning method.

In recent years, with the wide application and development of indoor positioning technology, there is a common need for indoor positioning, for example, indoor positioning using wireless network (Wi-Fi), radio frequency technology (RFID), ZigBee and ultrasound. Generally speaking, indoor positioning needs to belong to multiple wireless network base stations (AP) in the indoor field, and the wireless positioning method is used for signal detection with the wireless network base stations in the field through positioning tags. In order to improve the accuracy of indoor positioning, it is usually necessary to detect a signal corresponding to each coordinate position of the indoor field to achieve the purpose of indoor positioning. However, it is very time-consuming and labor-intensive to detect the signal corresponding to each coordinate position in the indoor field, and it is extremely necessary for practitioners to discuss and improve.

Therefore, the purpose of the present invention is to provide an efficient indoor wireless positioning method.

Therefore, the indoor wireless positioning method of the present invention is suitable for a wireless positioning system to be used in a work field, the work field includes a plurality of grids, the wireless positioning system includes a plurality of wireless network signal transceivers, a management server device, a gateway, a plurality of label units, and an artificial intelligence server. Each label unit has a label code. The indoor wireless positioning method includes a step (A), a step (B), a step (C), a step (D), a step (E), a step (F), and a step (G).

In the step (A), a position coordinate is set for each grid of the work field.

In the step (B), the wireless network signal transceivers of the wireless positioning system are respectively arranged on several of the grids.

In the step (C), each tag unit of the wireless location system is randomly positioned on one of the grids, the tag units are respectively located in different grid positions, the management server can be controlled to send out A plurality of collection instructions respectively corresponding to the tag units.

In the step (D), the management server sequentially sends each collection command to the gateway, and the gateway interprets the collection command received each time and analyzes the collection command currently received A corresponding identification module, and an execution packet, the identification module records the label code of the label unit corresponding to the execution packet and the position coordinates of the grid where the label unit is located, and is stored by the gateway. The execution packet is sent to the corresponding label unit.

In the step (E), the tag unit that receives the execution packet sends a detection message, and when each wireless network signal transceiver receives the detection message, it transmits a signal information to the tag unit, The signal information transmitted by the wireless network signal transceiver is obtained by the tag unit and stored as a signal strength combination.

In the step (F), the tag unit that receives the execution packet transmits the signal strength combination to the gateway, and the gateway associates the signal strength combination received each time with the signal strength combination corresponding to the signal strength combination. The identification module is integrated into a position signal message and sent to the management server, and the management server organizes the received position signal message into a position signal information table and sends it to the artificial intelligence server.

In the step (G), the artificial intelligence server analyzes the position signal information of the position signal information table and simulates the signal strength combination on the grid without any tag unit, and the artificial intelligence server Each simulated signal strength combination is stored as corresponding position signal information according to the position coordinates of the corresponding grid and integrated into the position signal information table for storage.

The effect of the present invention is that: in the step (D), the management server sends each collection command to the gateway in sequence, and the gateway analyzes the identification corresponding to the collection command currently received the module and the execution packet, and the gateway transmits the execution packet to the corresponding label unit. And in this step (E), the tag unit that receives the execution packet will send the detection message and obtain the signal information transmitted by the wireless network signal transceiver, and cooperate with the step (F) , the management server organizes the received position signal information into the position signal information table and transmits it to the artificial intelligence server. And in this step (G), the artificial intelligence server analyzes the position signal information of the position signal information table and simulates the signal strength combination on the grid without any tag unit, and simulates the Each group of signal strength combinations is stored as the corresponding position signal information according to the position coordinates of the corresponding grid, and is integrated into the design of the position signal information table storage, effectively achieving the artificial intelligence server. The signal information of the grid improves the previous problem that the tag unit needs to detect a large number of grids in the work area, greatly saves time and manpower, and also ensures accurate indoor positioning.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated by the same reference numerals.

Referring to FIGS. 1 and 2 , the indoor wireless positioning method of the present invention is suitable for a wireless positioning system 1 to be used in a work field 70 , the work field 70 includes a plurality of grids 71 , and the wireless positioning system 1 includes a plurality of A wireless network signal transceiver 2 , a management server 3 , a gateway 4 , a plurality of tag units 5 , and an artificial intelligence server 6 . Each label unit 5 has a label code. In this embodiment, each label code is a group of alphanumeric combinations, such as: 4d50, 6B20, etc., but not limited to this. The indoor wireless positioning method includes a step (A), a step (B), a step (C), a step (D), a step (E), a step (F), and a step (G).

First, in step (A), a position coordinate is set for each grid 71 of the work field 70 . And in the step (B), the wireless network signal transceivers 2 of the Wireless Location System 1 are respectively arranged on several of the grids 71 . To put it simply, the corresponding position coordinates are established for each grid 71 of the work field 70 . The wireless network signal transceivers 2 are respectively arranged in several grids 71 therein.

And in this step (C), each tag unit 5 of the wireless location system 1 is randomly positioned on one of the grids 71, and the tag units 5 are respectively located in different grids 71. The management servo The controller 3 can issue a plurality of collection instructions corresponding to the tag units 5 in a controlled manner. That is to say, the tag units 5 are located on different grids 71 , and the collection instructions issued by the management server 3 correspond to the tag units 5 respectively, so that the positions of different grids 71 can be collected. The signal of the wireless network signal transceiver 2 in the nearby area. In this embodiment, each label unit 5 is disposed on a material truck (not shown), and the material truck is parked on different grids 71 so that the label units 5 are located in different grids respectively. 71, but not limited thereto, the label unit 5 may also be arranged on multiple devices (not shown) located in different grids 71.

Next, in the step (D), the management server 3 sends each collection command to the gateway 4 in sequence, and the gateway 4 interprets the collection command received each time and analyzes the current reception An identification module corresponding to the collected instruction, and an execution packet, the identification module records the label code of the label unit 5 corresponding to the execution packet and the position coordinates of the grid 71 where the label unit 5 is located. , and the gateway 4 transmits the execution packet to the corresponding label unit 5 . In this step (E), the tag unit 5 that receives the execution packet will send a detection message, and when each wireless network signal transceiver 2 receives the detection message, it transmits a signal information to the tag unit 5, and the tag unit 5 obtains the signal information transmitted by the wireless network signal transceiver 2 and stores it as a signal strength combination. Specifically, each time the gateway 4 receives the collection instruction, it will analyze the identification module and the execution packet corresponding to the collection instruction currently received, and the identification module records the required The tag code of the tag unit 5 corresponding to the execution packet is executed, so the gateway 4 transmits the execution packet to the corresponding tag unit 5 according to the tag code of the identification module. For example, the tag code recorded by the identification module is 4d50, so the gateway 4 transmits the execution packet to the tag unit 5 whose tag code is 4d50. And the tag unit 5 that receives the execution packet will send the detection message to detect each wireless network signal transceiver 2 in the vicinity, and when each wireless network signal transceiver 2 receives the detection message, it will The signal information is sent to the tag unit 5, and the tag unit 5 obtains the signal information transmitted by the wireless network signal transceiver 2 and stores it as the signal strength combination. That is, each signal strength combination is the signal information received by the tag unit 5 at the current grid 71 position.

Then, in the step (F), the tag unit 5 that has received the execution packet transmits the signal strength combination to the gateway 4, and the gateway 4 combines the received signal strength combination with each time. The identification module corresponding to the signal strength combination is integrated into a position signal message and transmitted to the management server 3 , and the management server 3 organizes the received position signal information into a position signal information table and transmits it to the artificial intelligence server device 6. Further, the gateway 4 integrates the received signal strength combination and the identification module corresponding to the signal strength combination into the position signal information. For example, the label code recorded by the identification module is 4d50 and the identification module. The position coordinate of the grid 71 where the tag unit 5 is located is (a432) and the signal strength combination when the gateway 4 receives the signal is (-33,-26,-24,-30), and the gateway 4 The position signal information formed by the combination of the identification module and the current received signal strength is {4d50/ a432,{-33,-26,-24,-30﹜﹜, or the information recorded by the identification module The tag code is 6B20 and the position coordinate of the grid 71 where the tag unit 5 (6B20) is located is (f322) and the signal strength combination when the gateway 4 receives the signal is (-37,-31,-28,- 38), and the gateway 4 integrates the identification module and the signal strength received at that time into the position signal message as {6B20/ f322,{-37,-31,-28,-38﹜﹜ , and the management server 3 organizes the received position signal information into the position signal information table and transmits it to the artificial intelligence server 6 .

In this step (G), the artificial intelligence server 6 analyzes the position signal information of the position signal information table and simulates the signal strength combination on the grid 71 without any tag unit 5, and the artificial intelligence The intelligent server 6 stores each simulated signal strength combination into corresponding position signal information according to the position coordinates of the corresponding grid 71 and integrates it into the position signal information table for storage. That is to say, after the artificial intelligence server 6 obtains the position signal information table, and according to the information analysis of each position signal information in the position signal information table, it simulates the grid 71 that is not set with any label unit 5 location signal information. In the present embodiment, the artificial intelligence server 6 analyzes the position signal information table and analyzes and simulates the unknown position according to the combination of the signal strength of each position signal information in the position signal information table and the position coordinate analysis of the corresponding grid 71 . The signal strength combination on the grid 71 of any tag unit 5 is set, and the artificial intelligence server 6 stores each simulated signal strength combination as the corresponding position signal information according to the position coordinates of the corresponding grid 71 And integrated into the location signal information table for storage. Further, the artificial intelligence server 6 analyzes the combination of the signal strength of each position signal information in the position signal information table and the position coordinates of the corresponding grid 71, and according to the distance between the position coordinates of the position signal information and each other The signal strength corresponding to the position signal information is analyzed and calculated, and the position signal information on the grid 71 without any tag unit 5 is simulated. In addition, in the step (G), after the AI server analyzes the position signal information of the position signal information table, the AI server will execute a learning module and learn the position signal information table by learning the position signal information. The position signal information to predict and simulate the signal strength combination on the grid without any tag unit is set, and the artificial intelligence server will simulate each group of signal strength combination according to the position coordinates of the corresponding grid The corresponding position signal information is stored and integrated into the position signal information table for storage. In this embodiment, the learning module executed by the artificial intelligence server is a machine learning algorithm, but not limited thereto.

In this step (D), the management server 3 sends each collection command to the gateway 4 in sequence, and the gateway 4 analyzes the identification module corresponding to the collection command currently received and the The execution packet is transmitted by the gateway 4 to the corresponding label unit 5 . And in this step (E), the tag unit 5 that receives the execution packet will send the detection message and obtain the signal information transmitted by the wireless network signal transceiver 2, and cooperate with the step (F ), the management server 3 organizes the received position signal information into the position signal information table and transmits it to the artificial intelligence server 6 . And in this step (G), the artificial intelligence server 6 analyzes the position signal information of the position signal information table and simulates the signal strength combination on the grid 71 without any tag unit 5, and calculates Each simulated signal strength combination is stored as a corresponding position signal information according to the position coordinates of the corresponding grid 71 and integrated into the design of the position signal information table storage, effectively achieving the simulation through the artificial intelligence server 6 . The signal information of all the grids 71 in the work area 70 improves the problem that the tag unit 5 needs to detect a large number of grids 71 in the work area 70 in the past, greatly saves time and labor, and ensures accurate indoor positioning. Purpose.

It should be noted that, in this embodiment, each wireless network signal transceiver 2 has an identification code (ID), such as: 33d4, 2784, 6208, 4788 and other identification codes, wherein, in this step (D) , the execution packet records a plurality of identification codes corresponding to the wireless network signal transceivers 2 to be detected, and in step (E), the tag unit 5 that receives the execution packet sends the detection The detection message is used to detect the signal of the wireless network signal transceiver 2 corresponding to the identification code recorded in the execution packet, and when each wireless network signal transceiver 2 to be detected receives the detection message The signal information is transmitted to the tag unit 5, and the tag unit 5 obtains the signal information transmitted by the wireless network signal transceiver 2 and stores it as the signal strength combination. In the step (E), the signal strength combination has an identification code corresponding to each wireless network signal transceiver 2 to be detected and a signal strength. To put it simply, the tag unit 5 that has received the execution packet will detect the signal of the wireless network signal transceiver 2 corresponding to the identification code recorded in the execution packet, and the tag unit 5 will detect the signal of the wireless network signal transceiver 2 . The detected identification code corresponding to each wireless network signal transceiver 2 and the corresponding signal strength are stored as the signal strength combination. For example, if the identification module is (4d50/a432), it means that the label code recorded by the identification module is 4d50 and the position coordinate of the grid 71 where the label unit 5 (4d50) is located is (a432) and the label unit 5 (4d50) The received execution packet is recorded with the identification code (33d4, 2784, 6208, 4788) of the wireless network signal transceiver 2 to be detected, and the tag unit 5 will detect each detected The identification code corresponding to the wireless network signal transceiver 2 and the corresponding signal strength are stored as the signal strength combination (33d4: -33, 2784: -26, 6208: -24, 4788: -30). Therefore, in step (F), the signal strength combination received by the gateway 4 is (33d4:-33, 2784:-26, 6208:-24, 4788:-30), and the gateway 4 4. The position signal information obtained by combining the record of the identification module and the signal strength received at the time is {4d50/ a432,{33d4:-33, 2784:-26, 6208:-24, 4788:-30﹜ ﹜, but not limited to this.

In addition, in this embodiment, in the step (D), the management server 3, the gateway 4 and each tag unit 5 perform data transmission by means of the MQTT communication protocol, but not in this way. limited. In this embodiment, each label unit 5 is a LoRa label unit 5, but not limited thereto, wherein, in the step (D), the identification module also records the label required to execute the execution packet The wireless transmission technology corresponding to unit 5. For example: the identification module is (4d50/a432/LoRa), which means that the label code recorded by the identification module is 4d50 and the position coordinate of the grid 71 where the label unit 5 (4d50) is located is (a432), and the label unit 5 is to use LoRa wireless transmission technology, but not limited to this.

Here, it should be noted that, in this embodiment, each label unit 5 has a reminder (not shown), and in step (E), the label unit 5 that receives the execution packet will control the The reminder sends a reminder message. To put it simply, the tag unit 5 that receives the execution packet will send the detection message, and at the same time, the tag unit 5 will control the reminder to issue the reminder message, and remind the user that the tag unit 5 is detecting what is being detected. Signal information of each wireless network signal transceiver 2 to be detected. In this embodiment, each reminder is in the form of a buzzer, and each reminder message is a warning sound, that is to say, the tag unit 5 sends and receives each wireless network signal that needs to be detected. When the signal information of device 2 is displayed, the buzzer will emit the warning sound to remind the user. But not limited to this, it can be designed that each reminder can be in the form of an indicator light and each reminder message is a light-on message, or each reminder can have the form of a vibration sensor and each reminder The message is a vibration message, as long as it can remind the user that the tag unit 5 is performing the detection operation.

To sum up, in the indoor wireless positioning method of the present invention, in this step (D), the gateway 4 analyzes the identification module and the execution packet corresponding to the collection command received at the moment, and sends the The router 4 transmits the execution packet to the corresponding tag unit 5 . And in this step (E), the tag unit 5 that receives the execution packet will send the detection message and obtain the signal information transmitted by the wireless network signal transceiver 2, and cooperate with the step (F ), the management server 3 organizes the received position signal information into the position signal information table and transmits it to the artificial intelligence server 6 . And in this step (G), the artificial intelligence server 6 analyzes the position signal information of the position signal information table and simulates the signal strength combination on the grid 71 without any tag unit 5, and calculates Each simulated signal strength combination is stored as a corresponding position signal information according to the position coordinates of the corresponding grid 71 and integrated into the design of the position signal information table storage, effectively achieving the simulation through the artificial intelligence server 6 . The signal information of all the grids 71 in the work area 70 improves the problem that the tag unit 5 needs to detect a large number of grids 71 in the work area 70 in the past, greatly saves time and labor, and ensures accurate indoor positioning. Purpose.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

1: Wireless Positioning System 6: Artificial Intelligence Server 2: Wireless network signal transceiver 70: Workplace 3: Manage the server 71: Grid 4: Gateway A~G: Steps 5: Label unit

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a block diagram illustrating an embodiment of the indoor wireless positioning method of the present invention, a wireless positioning system is cooperatively applied to a work field; and FIG. 2 is a flow chart illustrating the steps of an embodiment of the indoor wireless positioning method of the present invention.

A~G: Steps

Claims (10)

An indoor wireless positioning method is suitable for a wireless positioning system to be used in a work field, the work field includes a plurality of grids, the wireless positioning system includes a plurality of wireless network signal transceivers, a management server, a A gateway, a plurality of label units, and an artificial intelligence server, each label unit has a label code, and the indoor wireless positioning method includes the following steps: (A) setting a position coordinate for each grid of the work field; (B) Disposing the wireless network signal transceivers of the Wireless Location System on several of the grids respectively; (C) Each tag unit of the wireless location system is randomly positioned on one of the grids, the tag units are located in different grid positions, the management server can be controlled to send out a plurality of corresponding the collection instruction of the tag unit; (D) The management server sends each collection command to the gateway in sequence, and the gateway interprets the collection command received each time and analyzes an identification pattern corresponding to the collection command currently received. set, and an execution packet, the identification module records the label code of the label unit corresponding to the execution packet and the position coordinates of the grid corresponding to the label unit, and the execution packet is transmitted by the gateway to the the corresponding label unit; (E) The tag unit that receives the execution packet will send a detection message, and when each wireless network signal transceiver receives the detection message, it transmits a signal information to the tag unit, and the tag unit is sent by the tag unit. obtaining the signal information transmitted by the wireless network signal transceiver and storing it as a signal strength combination; (F) The tag unit that receives the execution packet transmits the signal strength combination to the gateway, and the gateway integrates the signal strength combination received each time and the identification module corresponding to the signal strength combination into a the location signal information is transmitted to the management server, and the management server organizes the received location signal information into a location signal information table and transmits it to the artificial intelligence server; and (G) The artificial intelligence server analyzes the position signal information of the position signal information table and simulates the signal strength combination on the grid without any label unit, and the artificial intelligence server will simulate each A set of signal strength combinations are stored into corresponding position signal information according to the position coordinates of the corresponding grid, and are integrated into the position signal information table for storage. According to the indoor wireless positioning method of claim 1, each wireless network signal transceiver has an identification code, wherein, in the step (D), the execution packet records a plurality of wireless networks corresponding to the required detection respectively. The identification code of the channel signal transceiver, and in the step (E), the tag unit that receives the execution packet will send the detection message to detect the wireless network corresponding to the identification code recorded in the execution packet When each wireless network signal transceiver to be detected receives the detection message, it transmits the signal information to the tag unit, and the tag unit obtains the wireless network signal transceiver The signal information transmitted by the device is stored as the signal strength combination. The indoor wireless positioning method according to claim 2, wherein, in the step (E), the signal strength combination has an identification code and a signal strength corresponding to each wireless network signal transceiver to be detected. The indoor wireless positioning method of claim 1, wherein the artificial intelligence server analyzes the position signal information table and combines the position of the corresponding grid with the signal strength of each position signal information in the position signal information table Coordinate analysis simulates the combination of signal strengths on the grid without any label elements set. The indoor wireless positioning method according to claim 1, wherein, in the step (D), the management server, the gateway and each tag unit perform data transmission by means of the MQTT communication protocol. The indoor wireless positioning method according to claim 2, each tag unit is a LoRa tag, wherein, in step (D), the identification module also records the wireless tag unit corresponding to the tag unit that needs to execute the execution packet transmission technology. According to the indoor wireless positioning method of claim 6, each tag unit has a reminder, and in step (E), the tag unit that receives the execution packet controls the reminder to send out a reminder message. According to the indoor wireless positioning method of claim 7, each reminder has a buzzer, and each reminder message is an alarm sound. In the step (E), the tag unit that receives the execution packet will control the The buzzer emits the warning sound. According to the indoor wireless positioning method of claim 7, each reminder has an indicator light, and each reminder message is a light-on message. In step (E), the tag unit that receives the execution packet will control the The indicator light sends the light-on message. The indoor wireless positioning method according to claim 1, in the step (G), after the artificial intelligence server analyzes the position signal information in the position signal information table, the artificial intelligence server executes a learning module and By learning the position signal information of the position signal information table, it predicts and simulates the signal strength combination on the grid that is not set with any label unit, and the artificial intelligence server will simulate each group of signal strength combinations according to The position coordinates of the corresponding grids are stored as corresponding position signal information and integrated into the position signal information table for storage.

Images