CN116133006A - A wireless communication data packet loss processing method, device and medium - Google Patents

Abstract

The invention discloses a wireless communication data packet loss processing method, equipment and medium, belongs to the technical field of wireless communication, and is used for solving the technical problem that the existing LoRa wireless communication is easy to be interfered by the same frequency, so that the mutual air collision of a plurality of terminal equipment corresponding gateways under the same frequency is caused. The method comprises the following steps: acquiring the equipment number of the equipment end according to the service scene of the service end; according to the equipment number sent by the server, carrying out gateway timing on each piece of data, and determining the data sending time corresponding to the server; according to the data transmission time and the regional ranges of a plurality of gateways, overlapping range screening is carried out on the regional ranges, and the data communication state of the gateways is determined; and according to the equipment number and the data communication state, carrying out response judgment on the equipment end to obtain a response result so as to sequentially send the data in the server end.

Description

A wireless communication data packet loss processing method, device and medium

technical field

The present application relates to the technical field of wireless communication, and in particular to a method, device and medium for processing wireless communication data packet loss.

Background technique

LoRa is a wireless communication technology dedicated to long-distance and low-power consumption. Compared with other communication methods, its modulation method greatly increases the communication distance. It can be widely used in the field of long-distance low-speed Internet of Things wireless communication in various occasions. Such as automatic meter reading, building automation equipment, wireless security systems, industrial monitoring and control, etc.

In the existing LoRa wireless communication, one gateway corresponds to multiple terminals, and the gateway has fewer downlink channels. In order to ensure a certain transmission distance, the lower the LoRa communication rate, the higher the reliability. The timely rate of communication is contrary to other indicators, and it is difficult to unify. At the same time, lora communication is susceptible to interference on the same frequency, and multiple devices on the same frequency will cause packet collisions in the air and easily cause data confusion.

Contents of the invention

The embodiment of the present application provides a wireless communication data packet loss processing method, device and medium, which are used to solve the following technical problems: the existing LoRa wireless communication is easily interfered by the same frequency, resulting in the gap between the corresponding gateways of multiple terminal devices at the same frequency. A mid-air collision between them.

The embodiment of the application adopts the following technical solutions:

On the one hand, the embodiment of the present application provides a wireless communication data packet loss processing method, including: according to the usage scenario of the server, obtain the device number of the device; according to the device number sent by the server, perform The gateway checks the time to determine the data sending time of the server; according to the data sending time and the regional ranges of several gateways, the overlapping range of the regional ranges is screened to determine the data communication status of the gateways; according to the The device number and the data communication status are used to judge the response of the device to obtain the response result, so as to send the data in the server in sequence.

In the embodiment of this application, by synchronizing the gateway time, the server controls the entry point of the sending time of the gateway to avoid packet collision between different gateways when sending at the same frequency. At the same time, the device side optimizes and judges the response code, and realizes the coexistence of the sending state and the receiving state. The half-duplex mode solves the problem that one gateway corresponds to multiple devices, and the gateway has fewer downlink channels. At the same time, it ensures a certain transmission distance. In the case of low-speed lora communication, the timeliness of communication and the reliability of transmission distance are guaranteed. Coexist to achieve the greatest degree of mutual unity.

In a feasible implementation manner, according to the use scenario of the server end, obtaining the device number of the device end specifically includes: based on the preset use scene of the device end, grouping several of the device ends through the server end to obtain A group number; obtaining the sending data corresponding to the group number; according to the sending data, obtaining the device number corresponding to each device in the group number.

In a feasible implementation manner, according to the device number sent by the server, the gateway time is performed on each piece of data, and the data sending time corresponding to the server is determined, which specifically includes: through the server , to obtain the device number; according to the device number, obtain the single sending time of each piece of data in the server; through the preset TCP timing, the single sending time of each piece of data is timed by the gateway to obtain The data transmission time corresponding to the server; wherein, the time synchronization difference of the gateway time calibration is less than or equal to 20ms.

In a feasible implementation manner, according to the data sending time and the area ranges of several gateways, the overlapping range of the area ranges is screened to determine the data communication status of the gateways, specifically including: if the first gateway The coverage area of the coverage area and the coverage area of the second gateway is an overlapping area range, and then according to the preset gateway order, the first gateway and the second gateway are sequentially communicated with the same frequency data, and the corresponding data communication states are sequentially obtained; Wherein, the data communication state includes: a sending state, a receiving state and a waiting state.

In a feasible implementation manner, according to the data sending time and the area ranges of several gateways, the overlapping range of the area ranges is screened to determine the data communication status of the gateways, specifically including: if the first If the coverage area of the gateway and the coverage area of the second gateway do not overlap, then the first gateway and the second gateway perform data communication at the same frequency at the same time to obtain the same data communication status.

In a feasible implementation manner, the first gateway and the second gateway sequentially perform the same-frequency data communication, which specifically includes: if the same-frequency data is the same content data, then the first gateway and the second gateway The second gateway obtains the same data communication status at the same time; if the same-frequency data is different content data, then according to the built-in time parameters of the different content data, the first gateway and the second The gateway performs data communication at the wrong time, and obtains the data communication status at the wrong time in turn.

The embodiment of the present application uses the identification of gateway overlapping areas, so that the data packets of the gateways in the two overlapping areas will not collide with each other, and the non-overlapping areas can be sent at the same time, reducing the collision of data packets of the same frequency. Realized the saving of time.

In a feasible implementation manner, according to the device number and the data communication status, the device end is judged to respond, and the response result is obtained, so as to sequentially send the data in the server end, specifically including: Obtain the device number of the server; obtain the device data communication status of the device; wherein, the device data communication status and the gateway data communication status correspond to each other; according to the data communication frequency of the gateway and the The device number is used to judge the response code of the device data communication status; wherein, the response code is a protocol code, which means receiving; Send back the send back code corresponding to the gateway output data, so as to realize the normal reception of the gateway output data by the device end; , sending the output data of the gateway in sequence, and correspondingly changing the data communication state of the device.

This application optimizes the selection of response codes to ensure that when the gateway output data is sent, the device can receive the data normally, and use the gateway output data to resend in sequence, which can switch the device from the sending state to the waiting state. The high time-consuming state is transformed into a stable and fast state to realize the optimal selection of the response code.

In a feasible implementation manner, the state switching time of the data communication state of the device at the device end is shorter than the time interval of a single packet of data output by the gateway.

In the second aspect, the embodiment of the present application also provides a wireless communication data packet loss processing device, the device includes: at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory Instructions that can be executed by the at least one processor are stored, so that the at least one processor can execute the wireless communication data packet loss processing method described in any one of the above implementation manners.

In the third aspect, the embodiment of the present application also provides a non-volatile computer storage medium, wherein the storage medium is a non-volatile computer-readable storage medium, and the non-volatile computer-readable storage medium The medium stores at least one program, and each of the programs includes an instruction, and the instruction, when executed by the terminal, causes the terminal to execute a wireless communication data packet loss processing method described in any one of the above implementation manners.

This application provides a wireless communication data packet loss processing method, device and medium. By synchronizing the gateway time, the server controls the entry point of the gateway sending time to avoid collision between different gateways when sending packets at the same frequency. At the same time, the device responds to the response The code is optimized and judged, and the half-duplex mode in which the sending state and the receiving state coexist is realized, which solves the problem that one gateway corresponds to multiple device terminals, and the gateway has fewer downlink channels, and at the same time ensures a certain transmission distance. Under such circumstances, let the timeliness of communication and the reliability of transmission distance coexist to achieve the greatest degree of mutual unification.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in this application. Those skilled in the art can also obtain other drawings based on these drawings without creative work. In the attached picture:

FIG. 1 is a flow chart of a method for processing wireless communication data packet loss provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a gateway overlapping area provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a wireless communication data packet loss processing device provided by an embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments of this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

The embodiment of the present application provides a wireless communication data packet loss processing method, as shown in Figure 1, the wireless communication data packet loss processing method specifically includes steps S101-S104:

It should be noted that this application is a wireless communication data packet loss processing method for LoRa (a wireless communication technology dedicated to long-distance low power consumption), in which the data communication between the server, the gateway, and the device is all Data transmission, data identification and data processing based on LoRa communication.

S101. Acquire a device number of the device according to a usage scenario of the server.

Specifically, based on the preset use scenario of the device, through the server, several device ends are grouped to obtain a group number. Acquires the send data corresponding to the packet number. According to the sent data, obtain the device number corresponding to each device end in the group number.

As a feasible implementation manner, the server groups devices according to usage scenarios. The device side will obtain the current group number of the device after each power-on. The current device number sent for a single device, and then for the grouped devices, each group only sends data once, and the devices in the current group can receive it at the same time.

S102. According to the device number sent by the server, perform gateway time calibration for each piece of data, and determine the data sending time corresponding to the server.

Specifically, the device number is obtained through the server. According to the device number, obtain the single sending time of each piece of data in the server. Through the preset TCP timing, the single sending time of each piece of data is adjusted by the gateway to obtain the data sending time corresponding to the server. Wherein, the time synchronization difference of the gateway time calibration is less than or equal to 20ms.

As a feasible implementation, the server controls the sending time of each piece of data, and adjusts the time to the gateway regularly through TCP, so that the time synchronization difference does not exceed 20ms. That is, the gateway is regularly checked within the controllable range, and the server configures the specific time for the gateway to send each piece of data.

S103. According to the data sending time and the area ranges of several gateways, perform overlapping range screening on the area ranges to determine the data communication status of the gateways.

Specifically, if the coverage area of the first gateway and the coverage area of the second gateway are overlapping areas, then according to the preset gateway sequence, the first gateway and the second gateway will sequentially communicate with the same frequency data, and sequentially obtain the corresponding Data communication status. Wherein, the data communication state includes: sending state, receiving state and waiting to receive state.

Wherein, if the same frequency data is the same content data, then the first gateway and the second gateway obtain the same data communication status at the same time. If the data with the same frequency is different content data, according to the built-in time parameters of the different content data, the data communication with the first gateway and the second gateway is performed at different times in sequence, and the data communication status at different times is sequentially obtained.

If the coverage area of the first gateway and the coverage area of the second gateway are non-overlapping areas, then the first gateway and the second gateway simultaneously communicate data at the same frequency to obtain the same data communication state.

In one embodiment, FIG. 2 is a schematic diagram of a gateway overlapping area provided by the embodiment of the present application. As shown in FIG. 2 , in practical applications, there will be signal coverage blind spots when the layout of gateways is far away, so it is mostly shown in FIG. 2 scenes to be used. In order to improve the timeliness of receiving at the device side, gateway No. 1 and gateway No. 2 in Figure 2 overlap. In order to ensure that the two gateways do not collide with packets, they need to be sent sequentially. However, Gateway No. 3 only has an overlapping area with Gateway No. 2, so it can be sent simultaneously with Gateway No. 1 without conflict. By analogy, each gateway network can achieve time throttling through algorithms.

As a feasible implementation mode, the gateway time is synchronized, and the server controls the entry point of the gateway sending time, so as to avoid collision between gateways when sending packets at the same frequency. When there is no overlapping range between gateways and gateways, the starting point of sending time at the same frequency is not limited. When the gateway overlaps with the gateway, the starting point of the sending time of the same frequency needs to be queued and sent in sequence according to the order of the gateway. It is also possible to control gateways in overlapping areas by configuring relevant parameters, so that data with the same content is sent at the same time, data with different content is sent at staggered times, and gateways in non-overlapping areas communicate with data of the same frequency at the same time.

S104 , according to the device number and the data communication status, make a response judgment on the device side, and obtain a response result, so as to sequentially send data to the server side.

Specifically, obtain the device number of the server. Obtain the device data communication status on the device side. Wherein, the data communication state of the device corresponds to the data communication state of the gateway.

Further, according to the data communication frequency of the gateway and the device number, the response code judgment is performed on the data communication status of the device. Wherein, the response return code is a protocol code, which means receiving.

If the response result is that a return code needs to be sent, the return code corresponding to the gateway output data in the device is sent back, so as to realize the normal reception of the gateway output data by the device. If the response result is that no return code needs to be sent, then according to the preset configuration parameters of the gateway, the output data of the gateway will be sent in sequence, and the data communication status of the device will be changed accordingly.

Wherein, the state switching time of the device data communication state in the device end is less than the single packet data time interval of the gateway output data.

In one embodiment, even if the Lora intra-frequency communication packet is not from the device, it needs to be received and processed before being discarded. When the frequency of sending data by the gateway is relatively high, the device will frequently enter the state of receiving and waiting to receive, that is, the state of device data communication. If there is a response code, it will also join the sending state. It takes a relatively long time for the device to switch from the sending state to the waiting state, and greatly affects the stability of receiving. The response code is to ensure that the gateway sends this time, so that the device can normally receive the output data of the gateway. In addition, the gateway output data is used to resend sequentially, which can switch the device side from the sending state to the high time-consuming state of waiting to receive, and transform it into a stable and fast state, realizing the optimized selection of the response code. At the same time, the device determines whether to respond to the server according to the device number and communication status; the server confirms whether to retry multiple times or wait for the response from the device according to the device number.

In addition, the embodiment of the present application also provides a wireless communication data packet loss processing device. As shown in FIG. 3 , the wireless communication data packet loss processing device 300 specifically includes:

At least one processor 301; and, a memory 302 communicatively connected to the at least one processor 301; wherein, the memory 302 stores instructions that can be executed by the at least one processor 301, so that the at least one processor 301 can perform:

Obtain the device number of the device according to the usage scenario of the server;

According to the device number sent by the server, the gateway time is performed on each piece of data to determine the data sending time corresponding to the server;

According to the data transmission time and the regional scope of several gateways, the overlapping range of the regional scope is screened to determine the data communication status of the gateway;

According to the device number and data communication status, the response judgment is made to the device side, and the response result is obtained, so as to send the data in the server side sequentially.

The embodiment of the present application provides a wireless communication data packet loss processing method, device, and medium. By synchronizing the gateway time, the server controls the entry point of the gateway sending time to avoid collision between different gateways when sending packets at the same frequency. The response code is optimized and judged, and the half-duplex mode in which the sending state and the receiving state coexist is realized, which solves the problem of one gateway corresponding to multiple device terminals, and the gateway has fewer downlink channels, while ensuring a certain transmission distance. In the case of high speed, the timeliness of communication and the reliability of transmission distance coexist to achieve the greatest degree of mutual unity.

Each embodiment in the present application is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant parts, refer to part of the description of the method embodiments.

The devices and media provided in the embodiments of the present application correspond to the methods one by one, therefore, the devices and media also have beneficial technical effects similar to their corresponding methods. Since the beneficial technical effects of the method have been described in detail above, therefore, The beneficial technical effects of the equipment and media will not be repeated here.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read-only memory (ROM) or flash RAM. Memory is an example of computer readable media.

Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims (10)

1. A method for processing packet loss of wireless communication data, the method comprising:

acquiring the equipment number of the equipment end according to the service scene of the service end;

according to the equipment number sent by the server, carrying out gateway timing on each piece of data, and determining the data sending time corresponding to the server;

according to the data transmission time and the regional ranges of a plurality of gateways, overlapping range screening is carried out on the regional ranges, and the data communication state of the gateways is determined;

and according to the equipment number and the data communication state, carrying out response judgment on the equipment end to obtain a response result so as to sequentially send the data in the server end.

2. The method for processing the packet loss of the wireless communication data according to claim 1, wherein the method for processing the packet loss of the wireless communication data comprises the steps of:

based on a preset use scene of the equipment end, grouping a plurality of the equipment ends through the service end to obtain a grouping number;

acquiring transmission data corresponding to the packet number;

and acquiring the equipment number corresponding to each equipment end in the group number according to the sending data.

3. The method for processing the packet loss of the wireless communication data according to claim 1, wherein gateway timing is performed on each piece of data according to the equipment number sent by the server, and determining the data sending time corresponding to the server specifically includes:

acquiring the equipment number through the server;

acquiring single sending time of each piece of data in the server according to the equipment number;

performing gateway timing on the single sending time of each piece of data through preset TCP timing to obtain the data sending time corresponding to the server side; and the time synchronization difference value of the gateway timing is less than or equal to 20ms.

4. The method for processing the packet loss of the wireless communication data according to claim 1, wherein the overlapping range screening is performed on the area ranges according to the data transmission time and the area ranges of the gateways, so as to determine the data communication state of the gateways, and the method specifically comprises the following steps:

if the coverage area of the first gateway and the coverage area of the second gateway are in an overlapping area range, sequentially communicating the same-frequency data by the first gateway and the second gateway according to a preset gateway sequence, and sequentially obtaining corresponding data communication states; wherein the data communication state includes: a transmitting state, a receiving state, and a waiting state.

5. The method for processing the packet loss of the wireless communication data according to claim 4, wherein the overlapping range screening is performed on the area ranges according to the data transmission time and the area ranges of the gateways, so as to determine the data communication state of the gateways, and specifically comprising:

and if the coverage area of the first gateway and the coverage area of the second gateway are in a non-overlapping area range, simultaneously communicating the same-frequency data by the first gateway and the second gateway to obtain the same data communication state.

6. The method for processing packet loss of wireless communication data according to claim 4, wherein the first gateway and the second gateway sequentially perform communication with frequency data, and specifically comprising:

if the same-frequency data are the same content data, the first gateway and the second gateway simultaneously acquire the same data communication state;

and if the same-frequency data are different content data, sequentially carrying out time-staggered data communication on the first gateway and the second gateway according to the built-in time parameters of the different content data, and sequentially obtaining time-staggered data communication states.

7. The method for processing the packet loss of the wireless communication data according to claim 1, wherein the method for processing the packet loss of the wireless communication data is characterized by performing response judgment on the device side according to the device number and the data communication state to obtain a response result, so as to sequentially transmit the data in the server side, and specifically comprises the following steps:

acquiring the equipment number of the server;

acquiring the equipment data communication state of the equipment end; wherein the data communication state of the equipment and the data communication state of the gateway are mutually corresponding;

according to the data communication frequency of the gateway and the equipment number, the response code returning judgment is carried out on the data communication state of the equipment; wherein, the response back code is a protocol code, which indicates receiving;

if the response result is that the return code needs to be sent, the return code which corresponds to the gateway output data in the equipment terminal is sent back so as to realize the normal receiving of the gateway output data by the equipment terminal;

and if the response result is that the code does not need to be sent back, sequentially sending the gateway output data according to the preset configuration parameters of the gateway, and correspondingly changing the data communication state of the equipment.

8. The method for processing packet loss of wireless communication data according to claim 1, wherein the state switching occupation time of the device data communication state in the device side is smaller than a single packet data time interval of the gateway output data.

9. A wireless communication data packet loss processing apparatus, the apparatus comprising:

at least one processor; the method comprises the steps of,

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method of wireless communication data packet loss processing according to any one of claims 1-8.

10. A non-volatile computer storage medium, characterized in that the storage medium is a non-volatile computer readable storage medium storing at least one program, each of the programs comprising instructions which, when executed by a terminal, cause the terminal to perform a wireless communication data packet loss processing method according to any of claims 1-8.

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