WO2023185749A1

WO2023185749A1 - Communication control method and system for internet of things device, apparatus, and medium

Info

Publication number: WO2023185749A1
Application number: PCT/CN2023/084132
Authority: WO
Inventors: 侯捷; 张飞; 陈建龙; 李淑云; 王晓龙
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2022-03-29
Filing date: 2023-03-27
Publication date: 2023-10-05
Also published as: CN114679771A

Abstract

The present invention relates to the technical field of communications, and particularly provides a communication control method and system for an internet of things device, an apparatus, and a medium, aiming at solving the problem that in a process of interactive communication between an internet of things device and a target communication device, when an interaction signal is poor, frequent interactive communications cause current surges and increased power consumption of the internet of things device, resulting in affecting the function of the internet of things device. To achieve this objective, in the present invention, according to signal strength values of communication phases in a current interactive communication period and at least one previous interactive communication period when the internet of things device interactively communicates with the target communication device, a communication idle duration of an idle phase of the current interactive communication period is selectively adjusted, so that the problem of frequent interactive communications between the internet of things device and the target communication device caused by a poor interactive communication signal can be solved, the current surges caused by frequent interactive communications are effectively reduced, the power consumption of the internet of things device is reduced, and the service life of the internet of things device is effectively prolonged.

Description

Communication control method, system, device and medium for Internet of Things equipment

Technical field

The present invention relates to the field of communication technology, and specifically provides a communication control method, system, device and medium for Internet of Things equipment.

Background technique

The IoT device interacts and communicates with the target communication device in real time through the IoT module to upload and download data information. However, in the process of interactive communication, there is often the problem of poor interactive signals. When the interactive signal is poor, the Internet of Things device and the target communication device generally communicate frequently in order to successfully upload and download data information. However, due to the poor quality of interactive communication information, frequent interactive communication cannot truly achieve successful uploading and downloading of data information. Instead, it will cause a surge in current, increase the power consumption of IoT devices, affect the functions of IoT devices, and seriously affect the performance of IoT devices. May reduce the life of IoT devices. In the existing technology, to solve the problem of poor interactive signals, the main methods are to replace the high-power transmitting antenna, or to control the IoT device to continue to interact with the target communication device through power outage, or to judge the status of the IoT device through current detection or temperature rise detection. To improve the working status, these methods also have problems such as low efficiency, poor user experience, high cost, affecting the service life of the IoT module, etc., and cannot effectively solve the problem of frequent interactive communication caused by poor interactive communication signals.

Accordingly, this field needs a new interactive communication solution between Internet of Things devices and target communication devices to solve the above problems.

Contents of the invention

In order to overcome the above defects, the present invention is proposed to solve or at least partially solve the problem that when the interactive signal is poor during the interactive communication between the Internet of Things device and the target communication device, the current of the Internet of Things device surges and the power consumption increases due to frequent interactive communication. Questions about the functionality of IoT devices.

In a first aspect, the present invention provides a communication control method for an Internet of Things device. Laws include:

Obtain the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device, wherein the interactive communication cycle includes a communication phase and an idle phase in sequence;

For each interactive communication cycle, the communication idle time length of the idle phase in the current interactive communication cycle is selectively adjusted according to the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle.

In a technical solution of the communication control method of the above-mentioned Internet of Things device, “selectively adjust the signal strength value of the idle phase in the current interactive communication cycle based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle. The steps for "Communication Idle Duration" include:

Compare the signal strength value of the communication phase in the current interactive communication cycle with the preset signal strength threshold;

If the signal strength value is greater than the signal strength threshold, the communication idle duration of the idle phase in the current interactive communication cycle is not adjusted;

If the signal strength value is less than or equal to the signal strength threshold, the communication idle time in the idle phase of the current interactive communication cycle is extended.

In a technical solution of the above communication control method for Internet of Things devices, the step of "extending the communication idle time in the idle phase of the current interactive communication cycle" includes:

Estimate the difference in communication idle duration between the current interactive communication cycle and the idle phase in the previous interactive communication cycle based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle;

The communication idle duration of the idle phase in the current interactive communication cycle is extended according to the difference value.

In a technical solution of the communication control method of the above-mentioned Internet of Things device, "Based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle, it is estimated that the current interactive communication cycle will be the same as the previous interactive communication cycle. The steps of "difference of communication idle duration in the middle idle phase" include:

The PID algorithm is used and based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle, the difference in communication idle time between the current interactive communication cycle and the idle phase in the previous interactive communication cycle is estimated.

In a technical solution of the communication control method of the above-mentioned Internet of Things equipment, "the PID algorithm is used and based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle, it is estimated that the current interactive communication cycle will be the same as the previous interactive communication cycle. The steps of "determining the difference in communication idle duration in the idle phase of an interactive communication cycle" include:

Obtain the difference between the current interactive communication cycle and the communication idle duration in the idle phase of the previous interactive communication cycle according to the following formula:
ΔT _n =K _p ×(S _n -S _n-1 ⁾ +K _i ×S _n +K _d ×(S _n -2S _n-1 +S _n-2 )

Among them, ΔT _n is the difference between the communication idle duration of the idle phase in the current interactive communication cycle n and the previous interactive communication cycle n-1, S _n is the inverse signal strength value of the communication phase in the current interactive communication cycle n, and the inverse signal strength value Signal strength value S _n =100-RSSI _n , RSSI _n is the signal strength value of the communication phase in the current interactive communication cycle n, S _n-1 is the inverse signal strength value of the communication phase in the interactive communication cycle n-1, S _{n- 2} is the inverse signal strength value of the communication phase in the interactive communication cycle n-2, and K _p , K _i , and K _d are the preset proportional coefficients, differential coefficients, and integral coefficients respectively.

In one technical solution of the communication control method of the above-mentioned Internet of Things device, before the step of "selectively adjusting the communication idle duration of the idle phase in each of the interactive communication cycles", the method further includes determining the communication idle time through the following steps: The following communication idle time:

Get the data packet duration of sending and receiving data packets in the communication phase of the current interactive communication cycle;

The communication idle duration is determined based on the data packet duration.

In a technical solution of the above communication control method for Internet of Things devices, the step of "determining the communication idle duration based on the data packet duration" includes:

Set the communication idle duration to 3 times the data packet duration; and/or,

The communication idle duration is less than or equal to 5 times the data packet duration.

In a second aspect, the present invention provides a communication control system for Internet of Things devices, which system includes:

A signal strength acquisition module configured to obtain the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device, wherein the interactive communication cycle includes a communication phase and an idle phase in sequence. ;

A communication idle duration adjustment module configured to, for each interactive communication cycle, selectively adjust the idle phase in the current interactive communication cycle according to the signal strength value of the communication phase in the current interactive communication cycle and at least one preceding interactive communication cycle. communication idle time.

In a third aspect, a control device is provided. The control device includes a processor and a storage device. The storage device is adapted to store a plurality of program codes. The program codes are adapted to be loaded and run by the processor to execute the above. The communication control method of the Internet of Things device described in any one of the technical solutions of the communication control method of the Internet of Things device.

In a fourth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a plurality of program codes. The program codes are adapted to be loaded and run by a processor to execute the above communication control method for an Internet of Things device. The communication control method of the Internet of Things device described in any of the technical solutions.

One or more of the above technical solutions of the present invention have at least one or more of the following beneficial effects:

In the technical solution for implementing the present invention, the present invention can calculate the current interaction based on the signal strength value of the current interactive communication cycle and the communication phase of at least one interactive communication cycle before it during the interactive communication process between the Internet of Things device and the target communication device. The communication idle duration in the idle phase of the communication cycle is selectively adjusted. Through the above configuration method, the problem of frequent interactive communication between the Internet of Things device and the target communication device caused by poor interactive communication signals during the interactive communication process between the Internet of Things device and the target communication device can be effectively controlled, effectively reducing the problem of frequent interactive communication between the Internet of Things device and the target communication device. The resulting surge in current reduces the power consumption of IoT devices and effectively extends the service life of IoT devices.

Description of drawings

The disclosure of the present invention will become more understandable with reference to the accompanying drawings. Those skilled in the art can easily understand that these drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. in:

Figure 1 is a schematic flowchart of the main steps of a communication control method for an Internet of Things device according to an embodiment of the present invention;

Figure 2 is a schematic sequence diagram of interactive communication between an Internet of Things device and a target communication device according to an embodiment of the present invention;

Figure 3 is a schematic flowchart of the main steps of a communication control method for an Internet of Things device according to an embodiment of the present invention;

Figure 4 is a main diagram of a communication control system for an Internet of Things device according to an embodiment of the present invention. Need structural block diagram.

Detailed ways

Some embodiments of the invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, "module" and "processor" may include hardware, software, or a combination of both. A module can include hardware circuits, various suitable sensors, communication ports, and memory. It can also include software parts, such as program code, or it can be a combination of software and hardware. The processor may be a central processing unit, a microprocessor, a digital signal processor, or any other suitable processor. The processor has data and/or signal processing functions. The processor can be implemented in software, hardware, or a combination of both. Non-transitory computer-readable storage media include any suitable media that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and/or B" means all possible combinations of A and B, such as just A, just B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and/or B" and may include just A, just B or A and B. The singular forms "a," "the" and "the" may also include the plural form.

Referring to Figure 1, Figure 1 is a schematic flowchart of the main steps of a communication control method for an Internet of Things device according to an embodiment of the present invention. As shown in Figure 1, the communication control method of the Internet of Things device in the embodiment of the present invention mainly includes the following steps S101-step S102.

Step S101: Obtain the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device, where the interactive communication cycle includes a communication phase and an idle phase in sequence.

In this embodiment, refer to FIG. 2 , which is a schematic sequence diagram of interactive communication between an Internet of Things device and a target communication device according to an embodiment of the present invention. As shown in Figure 2, W is the data packet duration for sending and receiving data packets in the communication phase of the interactive communication cycle, and T is the communication idle time during the idle phase of the interactive communication cycle. The interval corresponding to W is the communication phase of the interactive communication cycle, and the interval corresponding to T is the idle phase of the interactive communication cycle. The signal strength of the communication phase in each interactive communication cycle can be obtained when the Internet of Things device interacts with the target communication device. value, that is, the signal strength value of the interval corresponding to W in Figure 2.

In one embodiment, AT (Attention) instructions can be used to implement interactive communication between the Internet of Things device and the target communication device, and obtain the signal strength value of the communication phase in the interactive communication cycle.

In one embodiment, the IoT device can be a device with a SIM (Subscriber Identity Module, user identification card) card, the target communication device can be a base station, and the IoT device and the base station interact and communicate to upload and download data information. .

Step S102: For each interactive communication cycle, selectively adjust the communication idle time length of the idle phase in the current interactive communication cycle according to the signal strength value of the communication phase in the current interactive communication cycle and at least one preceding interactive communication cycle.

In this embodiment, the communication idle duration in the idle phase of the current interactive communication cycle can be selectively adjusted according to the signal strength value of the communication phase in each interactive communication cycle.

Based on the above steps S101 to S102, the embodiment of the present invention can calculate the current interactive communication cycle based on the signal strength value of the communication phase of the current interactive communication cycle and at least one interactive communication cycle before it during the interactive communication process between the Internet of Things device and the target communication device. The communication idle duration in the idle phase of the interactive communication cycle is selectively adjusted. Through the above configuration, embodiments of the present invention can effectively control the problem of frequent interactive communication between the Internet of Things device and the target communication device due to poor interactive communication signals during the interactive communication process, and effectively reduce the problem of frequent interactive communication between the Internet of Things device and the target communication device. The current surge caused by frequent interactive communication reduces the power consumption of IoT devices and effectively extends the service life of IoT devices.

In one implementation of the embodiment of the present invention, in addition to the above steps S101 and S102, before step S102, the present invention may also include steps S103 and S104, through which the communication idle time is determined:

Step S103: Obtain the data packet duration of sending and receiving data packets during the communication phase in the current interactive communication cycle.

Step S104: Determine the communication idle duration based on the data packet duration.

In this embodiment, the communication idle duration of the idle phase in the interactive communication cycle can be determined based on the data packet duration of sending and receiving data packets during the communication phase.

In one implementation, step S104 may further include:

Set the communication idle duration to 3 times the data packet duration.

In this embodiment, continuing to refer to FIG. 2 , the communication idle duration T may be three times the data packet duration W, that is, 3W.

Step S102 will be further described below.

In one implementation of the embodiment of the present invention, step S102 may further include the following steps S1021 to S1023:

Step S1021: Compare the signal strength value of the communication phase in the current interactive communication cycle with the preset signal strength threshold; if the signal strength value is greater than the signal strength threshold, jump to step S1022; if the signal strength value is less than or equal to the signal strength threshold , then jump to step S1023;

Step S1022: Do not adjust the communication idle duration of the idle phase in the current interactive communication cycle.

In this embodiment, the signal strength value of the communication phase in the current interactive communication cycle can be compared with the preset signal strength threshold. When the signal strength value is greater than the signal strength threshold, the idle phase in the current interactive communication cycle will not be adjusted. communication idle time. That is, the communication idle time can remain unchanged at 3W.

Step S1023: Extend the communication idle time of the idle phase in the current interactive communication cycle.

In this embodiment, when the signal strength is less than or equal to the signal strength threshold, the communication idle time in the idle phase of the current interactive communication cycle is extended to avoid frequent interactions between the Internet of Things device and the target communication device when the signal strength value is low. interactive communication. Those skilled in the art can set the value of the signal strength threshold according to the needs in the actual application process.

In one implementation, step S1023 may further include step S10231 and step S10232:

Step S10231: Estimate the difference in communication idle time between the current interactive communication cycle and the idle phase in the previous interactive communication cycle based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle;

Step S10232: Extend the communication idle duration of the idle phase in the current interactive communication cycle according to the difference value.

In one implementation, the PID (Proportion Integral Differential, Proportion, Integral, Differential) algorithm can be used and based on the current interactive communication cycle and the signal strength value of the communication phase in at least one interactive communication cycle before it, it is estimated that the current interactive communication cycle and The difference between the communication idle duration of the idle phase in the previous interactive communication cycle, and the sum of the difference and the communication idle duration of the idle phase in the current interactive communication cycle is used as the new communication idle duration.

In one implementation, the difference between the current interactive communication cycle and the communication idle duration in the idle phase of the previous interactive communication cycle can be obtained according to the following formula (1):
ΔT _n =K _p ×(S _n -S _n-1 )+K _i ×S _n +K _d ×(S _n -2S _n-1 +S _n-2 ) (1)

Among them, ΔT _n is the difference between the communication idle duration in the idle phase of the current interactive communication cycle n and the previous interactive communication cycle n-1, S _n is the inverse signal strength value of the communication phase in the current interactive communication cycle n, and the inverse signal strength The value S _n =100-RSSI _n , RSSI _n is the signal strength value of the communication phase in the current interactive communication cycle n, S _n-1 is the inverse signal strength value of the communication phase in the interactive communication cycle n-1, and S _n-2 is The inverse signal strength value of the communication phase in the interactive communication cycle n-2, K _p , K _i , and K _d are the preset proportional coefficients, differential coefficients, and integral coefficients respectively.

The following takes China Mobile Cat.1 module ML302 as an example to further explain step S10232.

Get feedback parameters through AT+CSQ command:

Command format: AT+CSQ<CR>

The command returns: AT+CSQ:<RSSI>,<ber>

Among them, the larger the <RSSI> feedback parameter value is, the better the signal quality is, and <ber> is the bit error.

According to the feedback parameters, the signal strength value (RSSI, Received Signal Strength Indication) of the communication phase in each interactive communication cycle during interactive communication is obtained, as shown in Table 1:

Table 1: Correspondence between RSSI feedback parameters and signal strength values

Among them, the larger the value of the <RSSI> feedback parameter, the higher the signal strength value (except for the <RSSI> feedback parameter = 99).

Assuming that the system sampling time is Δt, the input of the PID algorithm is the signal strength value of each interactive communication cycle of the IoT device:

RSSI ₀ , RSSI ₁ , RSSI ₂ , RSSI ₃ ,..., RSSI _n-2 , RSSI _n-1 , RSSI _n ,...;

The output of the PID algorithm is the idle phase of each interactive communication cycle of the IoT device. Communication idle time:

T ₀ , T ₁ , T ₂ , T ₃ ,…, T _n-2 , T _n-1 , T _n ,…;

The proportional term of the PID algorithm is: K _p ×S _n ;

The integral term of the PID algorithm is:

The differential term of the PID algorithm is: K _d ×(S _i -Si _-1 )/Δt

According to the proportional term, integral term and differential term of the PID algorithm, the communication idle time of the idle phase in the nth interactive communication cycle can be obtained, which can be expressed by the following formula (2):

The difference in communication idle duration in the idle phase of two adjacent interactive communication cycles can be expressed by the following formula (3):
ΔT _n =T _n -T _n-1 (3)

Substitute formula (2) into formula (3) to obtain the following formula (4)

Among them, the system sampling time Δt can be taken as unit time, that is, Δt=1. Substituting Δt=1 into formula (4), formula (1) can be obtained.

The difference between the current interactive communication cycle and the communication idle duration in the idle phase of the previous interactive communication cycle can be obtained according to formula (1). Among them, K _p , K _i , and K _d are all less than 1, and are the optimal values obtained through a large number of experiments.

That is to say, assuming that the duration of data packets sent and received in the communication phase in each interactive communication cycle is W, then when the signal strength value of the communication phase in the current interactive communication cycle n is greater than the signal strength threshold, the idle time in the current interactive communication cycle n The communication idle time of the phase is T _n =3W; when the signal strength value of the communication phase in the current interactive communication cycle n is less than or equal to the signal strength threshold, the communication idle time of the idle phase in the current interactive communication cycle n is T _n =T _n-1 + ΔT _n .

In one embodiment, the communication idle duration T _n of the idle phase in the current interactive communication cycle n is ≤5W.

In one embodiment, refer to FIG. 3 , which is a schematic flowchart of the main steps of a communication control method for an Internet of Things device according to an embodiment of the present invention. As shown in Figure 3, the communication control method of the Internet of Things device may include the following steps S201 to S204:

Step S201: Obtain the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device.

In this embodiment, the method described in step S201 is similar to the method described in the aforementioned step S101, and will not be described again for simplicity of description.

Step S202: Determine whether the signal strength value of the communication phase in the current interactive communication cycle is less than or equal to the preset signal strength threshold. If yes, jump to step S203. If not, jump to step S204.

In this embodiment, step S202 is similar to the method described in step S1021, and will not be described again for simplicity of description.

Step S203: Use the PID algorithm to extend the communication idle time in the idle phase of the current interactive communication cycle.

In this embodiment, step S203 is similar to the method described in step S1023, and will not be described again for simplicity of description.

Step S204: Do not adjust the communication idle duration of the idle phase in the current interactive communication cycle.

In this embodiment, step S204 is similar to the method described in step S1022, and will not be described again for simplicity of description.

It should be pointed out that although the various steps are described in a specific order in the above embodiments, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in other sequences, and these changes are within the scope of the present invention.

Furthermore, the present invention also provides a communication control system for Internet of Things equipment.

Referring to FIG. 4, FIG. 4 is a main structural block diagram of a communication control system for an Internet of Things device according to an embodiment of the present invention. As shown in Figure 4, the communication control system of the Internet of Things device in the embodiment of the present invention may include a signal strength acquisition module and a communication idle time adjustment module. In this embodiment, the signal strength acquisition module may be configured to obtain the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device, where the interactive communication cycle includes the communication phase and the idle phase in sequence. stage. The communication idle duration adjustment module may be configured to, for each interactive communication cycle, selectively adjust the length of the idle phase in the current interactive communication cycle according to the signal strength value of the communication phase in the current interactive communication cycle and at least one preceding interactive communication cycle. Communication idle time.

The communication control system of the above-mentioned Internet of Things device is used to execute the embodiment of the communication control method of the Internet of Things device shown in Figure 1. The technical principles, technical problems solved and technical effects produced by the two are similar. Those skilled in the art It can be clearly understood that for the convenience and simplicity of description, the specific working process and related instructions of the communication control system of the Internet of Things device can be referred to the content described in the embodiment of the communication control method of the Internet of Things device, and will not be repeated here. .

Those skilled in the art can understand that the present invention can implement all or part of the process in the method of the above-mentioned embodiment, and can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable file. In the storage medium, when the computer program is executed by the processor, the steps of each of the above method embodiments can be implemented. Wherein, the computer program includes computer program code, which may be in the form of source code, object code, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, media, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunications signals, and software distribution media, etc. It should be noted that the content contained in the computer-readable storage medium can be appropriately added or deleted according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media Storage media does not include electrical carrier signals and telecommunications signals.

Furthermore, the present invention also provides a control device. In a control device embodiment according to the present invention, the control device includes a processor and a storage device. The storage device can be configured to store a program for executing the communication control method of the Internet of Things device of the above method embodiment. The processor can be configured to For executing the program in the storage device, the program includes but is not limited to the program for executing the communication control method of the Internet of Things device of the above method embodiment. For ease of explanation, only the parts related to the embodiments of the present invention are shown. If specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The control device may be a control device device including various electronic devices.

Furthermore, the present invention also provides a computer-readable storage medium. In one embodiment of the computer-readable storage medium according to the present invention, the computer-readable storage medium may be configured to store a program for executing the communication control method of the Internet of Things device of the above method embodiment, and the program may be loaded and run by a processor. To implement the communication control method of the above-mentioned Internet of Things devices. for For ease of explanation, only the parts related to the embodiments of the present invention are shown. If the specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, in the embodiment of the present invention, the computer-readable storage medium is a non-transitory computer-readable storage medium.

Further, it should be understood that since the settings of each module are only to illustrate the functional units of the device of the present invention, the physical devices corresponding to these modules may be the processor itself, or a part of the software in the processor, a part of the hardware, or Part of the combination of software and hardware. Therefore, the number of individual modules in the figure is only illustrative.

Those skilled in the art can understand that various modules in the device can be split or combined adaptively. Such splitting or merging of specific modules will not cause the technical solutions to deviate from the principles of the present invention. Therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims

A communication control method for Internet of Things devices, characterized in that the method includes:

Obtain the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device, wherein the interactive communication cycle includes a communication phase and an idle phase in sequence;

For each interactive communication cycle, the communication idle time length of the idle phase in the current interactive communication cycle is selectively adjusted according to the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle.
The communication control method according to claim 1, characterized in that, "selectively adjust the signal strength value of the idle phase in the current interactive communication cycle according to the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle. The steps for "Communication Idle Duration" include:

Compare the signal strength value of the communication phase in the current interactive communication cycle with the preset signal strength threshold;

If the signal strength value is greater than the signal strength threshold, the communication idle duration of the idle phase in the current interactive communication cycle is not adjusted;

If the signal strength value is less than or equal to the signal strength threshold, the communication idle time in the idle phase of the current interactive communication cycle is extended.
The communication control method according to claim 2, characterized in that the step of "extending the communication idle duration of the idle phase in the current interactive communication cycle" includes:

Estimate the difference in communication idle duration between the current interactive communication cycle and the idle phase in the previous interactive communication cycle based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle;

The communication idle duration of the idle phase in the current interactive communication cycle is extended according to the difference value.
The communication control method according to claim 3, characterized in that, "according to the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle, The steps of estimating the difference between the current interactive communication cycle and the communication idle duration in the idle phase of the previous interactive communication cycle include:

The PID algorithm is used and based on the signal strength value of the communication phase in the current interactive communication cycle and at least one previous interactive communication cycle, the difference in communication idle time between the current interactive communication cycle and the idle phase in the previous interactive communication cycle is estimated.
The communication control method according to claim 4, characterized in that, "using a PID algorithm and based on the current interactive communication cycle and the signal strength value of the communication phase in at least one interactive communication cycle before it, it is estimated that the current interactive communication cycle will be the same as the previous interactive communication cycle. The steps of "determining the difference in communication idle duration in the idle phase of an interactive communication cycle" include:

Obtain the difference between the current interactive communication cycle and the communication idle duration in the idle phase of the previous interactive communication cycle according to the following formula:
ΔT n =K p ×(S n -S n-1 )+K i ×S n +K d ×(S n -2S n-1 +S n-2 )

Among them, ΔT n is the difference between the communication idle duration of the idle phase in the current interactive communication cycle n and the previous interactive communication cycle n-1, S n is the inverse signal strength value of the communication phase in the current interactive communication cycle n, and the inverse signal strength value Signal strength value S n =100-RSSI n , RSSI n is the signal strength value of the communication phase in the current interactive communication cycle n, S n-1 is the inverse signal strength value of the communication phase in the interactive communication cycle n-1, S n- 2 is the inverse signal strength value of the communication phase in the interactive communication cycle n-2, and K p , K i , and K d are the preset proportional coefficients, differential coefficients, and integral coefficients respectively.
The communication control method according to claim 2, characterized in that, before the step of "selectively adjusting the communication idle duration of the idle phase in each interactive communication cycle", the method further includes determining the communication idle time through the following steps: The following communication idle time:

Get the data packet duration of sending and receiving data packets in the communication phase of the current interactive communication cycle;

The communication idle duration is determined based on the data packet duration.
The communication control method according to claim 6, characterized in that the step of "determining the communication idle duration according to the data packet duration" includes:

Set the communication idle duration to 3 times the data packet duration; and/or,

The communication idle duration is less than or equal to 5 times the data packet duration.
A communication control system for Internet of Things equipment, characterized in that the system includes:

A signal strength acquisition module configured to acquire the signal strength value of the communication phase in each interactive communication cycle when the Internet of Things device interacts with the target communication device, wherein the interactive communication cycle includes a communication phase and an idle phase in sequence. ;

A communication idle duration adjustment module configured to, for each interactive communication cycle, selectively adjust the idle phase in the current interactive communication cycle according to the signal strength value of the communication phase in the current interactive communication cycle and at least one preceding interactive communication cycle. communication idle time.
A control device, including a processor and a storage device, the storage device is adapted to store a plurality of program codes, characterized in that the program codes are adapted to be loaded and run by the processor to execute claims 1 to 7 The communication control method of any one of the Internet of Things devices.
A computer-readable storage medium in which a plurality of program codes are stored, characterized in that the program codes are adapted to be loaded and run by a processor to execute the Internet of Things device described in any one of claims 1 to 7. Communication control methods.