An antenna transmit power control method for a router

Abstract

The present invention relates to the technical field of antenna power control, and specifically discloses a method for controlling the transmission power of an antenna of a router, comprising the following steps: S1: Determine a target device according to an initial name, determine a target location, and determine a target router; S2: Periodically obtain the standard signal strength at the target location within a collection period, and plot a curve of the standard signal strength changing with time; Determine a reference point according to a reference line, and obtain a pending curve; Screen out abnormal curves, calculate the minimum abnormal value, and calculate an evaluation score through a formula; S3: Count the proportion of the evaluation scores greater than or equal to a preset score threshold, and increase the transmission power of the antenna of the target router when the proportion is greater than or equal to a preset proportion threshold. The present invention can automatically determine how to adjust the transmission power of the antenna of the router according to the standard signal strength within the collection period, improving the coverage range and signal quality of the wireless network.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna power control, and particularly relates to a method for controlling the transmission power of an antenna of a router. Background Art

[0002] A router can also be called a gateway device. The router completes network layer relay and third layer relay tasks in the OSI / RM, stores and forwards packets between different networks. Its main function is to separate different logical networks. The router only accepts information transmitted by the source station or other relevant routers during operation and is an interconnection device based on the network layer.

[0003] The antenna of a router is a wireless communication device used to send and receive wireless signals, establish a wireless network connection, thereby realizing the coverage and connection of the wireless network. The main function of the antenna is to enhance the signal coverage range and signal strength to ensure that wireless devices (such as computers, mobile phones, tablets, etc.) can stably connect to the network.

[0004] In the prior art, most routers allow users to adjust the transmission power of the antenna by entering the management interface. Users can switch between different power levels according to needs. However, the method of manually setting the antenna transmission power requires more steps, such as logging in to the management interface, selecting the appropriate transmission power, etc. These steps all need to be adjusted manually by the user, and the control method of the antenna transmission power of the router is not flexible enough; at the same time, certain experience or professional knowledge is required to select the appropriate power level, which is not user-friendly for ordinary users. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for controlling the transmission power of an antenna of a router to solve the above technical problems.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A method for controlling the transmission power of an antenna of a router includes the following steps:

[0008] S1: Establish a database, and the database stores an initial name, and the initial name is the service set identifier of the wireless network in the preset monitoring area;

[0009] Determine the devices connected to the wireless network A in the monitoring area according to the initial name, and use them as target devices, and determine the positions of the target devices, and use them as target positions, and use the router corresponding to the wireless network A as the target router;

[0010] S2: Periodically obtain the standard signal strength D at the target position within a preset acquisition period T. The standard signal strength is the signal strength of wireless network A at the target position, and plot the curve f(t) of the standard signal strength changing with time;

[0011] Draw a straight line passing through the point (0, D') and parallel to the x-axis, and use it as a reference line. D' represents a preset standard signal strength threshold. Take the intersection point of the reference line and the curve of the standard signal strength changing with time as a reference point, and take the curve of the standard signal strength changing with time between two adjacent reference points as a pending curve;

[0012] When the pending curve is below the reference line, use it as an abnormal curve g(t), and calculate the minimum abnormal value G i = min(g i (t)), g i (t) represents the i-th abnormal curve;

[0013] Calculate the evaluation score K through the formula. The formula is:

[0014]

[0015] m represents the total number of the abnormal curves, ΔT i represents the time span of the i-th abnormal curve, α i represents a preset correction coefficient, and α1 < α2 < … < α m ;

[0016] S3: Statistically calculate the proportion R of the evaluation score K ≥ K'. K' represents a preset score threshold. When the proportion R ≥ R', start the adjustment. R' represents a preset proportion threshold.

[0017] As a further solution of the present invention: In step S1, when the number of target devices corresponding to the wireless network A is 0, do not execute the subsequent steps until the number of target devices corresponding to the wireless network A is greater than or equal to 1.

[0018] As a further solution of the present invention: In step S3, the adjustment process specifically includes:

[0019] Determine the standard signal strength at the target position at the end of the acquisition period, and obtain the minimum standard signal strength D min = min(DT1, DT2, …, DT n ), DT nIndicates the standard signal strength at the nth target position at the end of the described acquisition period, and increases the antenna transmission power of the target router at a preset antenna transmission power interval until the standard signal strength at the abnormal position reaches D', and the abnormal position is the minimum standard signal strength D min The corresponding target position.

[0020] As a further solution of the present invention: when the minimum standard signal strength D min ≥ D', the following steps are executed:

[0021] Calculate the average standard signal strength And determine the minimum value of the average standard signal strength DAVE min = min(DAVEjh), DAVEj h = (DAVE1, DAVE2,..., DAVE n ), and take the target position corresponding to the minimum value of the average standard signal strength as the abnormal position, and execute the subsequent steps to adjust the antenna transmission power of the target router.

[0022] As a further solution of the present invention: during the adjustment process, set the maximum antenna transmission power P max , when the antenna transmission power of the target router reaches P max , and the standard signal strength at the abnormal position still does not reach D', then the following steps are executed:

[0023] Obtain the number C of antennas of the target router, and determine the angle adjustment range of each antenna. Take the negative value of the standard signal strength threshold D' as the fitness function, and determine the optimal angle set C jh = (B1, B2,..., B C ) when the standard signal strength in the baseline direction reaches D', where BC represents the angle of the Cth antenna of the target router when the standard signal strength in the baseline direction reaches D';

[0024] Among them, the process of determining the baseline direction specifically includes:

[0025] Taking the center of the target router as the reference point, draw a ray starting from the reference point and passing through the abnormal position, and take the direction of the ray as the baseline direction.

[0026] As a further solution of the present invention: in step S2, when the reference line coincides with the curve of the standard signal strength changing with time at any point, remove the reference line and the curve of the standard signal strength changing with time at the coincidence position, and execute the subsequent steps.

[0027] As a further solution of the present invention: in the step S2, the standard signal strength threshold D' is determined based on the target position, and the standard signal strength thresholds at different target positions are different. The shorter the distance between the target position and the target router, the larger the corresponding standard signal strength threshold.

[0028] As a further solution of the present invention: in the step S2, when there is the minimum outlier G i ≤ G' and / or , the subsequent steps are not executed, and adjustment is started. G' represents a preset second standard signal strength, and G' < D';

[0029] When there is no pending curve in a certain acquisition period, the antenna transmission power of the target router is reduced so that the standard signal strength at each target position reaches D'.

[0030] Advantages of the present invention: In the present invention, a database is first established to store the initial names, which is the basis for subsequent screening of devices using the same wireless network (i.e., target devices); it can be understood that the present invention is applicable to the scenario where a device is only connected to one wireless network. The Service Set Identifier (SSID) is the name of the wireless network, and it is the unique identifier used to identify a wireless local area network. The SSID can be a string with a length of 0 to 32 characters, usually set by the network administrator to distinguish different wireless networks. Therefore, the target devices can be determined according to the initial names; then, the target location and the target router are determined, which is the basis for subsequent increasing the antenna transmission power of the target router; it should be noted that the wireless networks connected by different devices may not be the same. When the wireless network connected by a device is A, even if the signal strength of wireless network B is low at the location of the device, it will not affect the normal use of the device. Therefore, the target router needs to be determined to accurately adjust the antenna transmission power; then, the standard signal strength at the target location is periodically collected, and a curve of the standard signal strength changing with time is plotted; it can be understood that in actual situations, the signal strength will fluctuate. For example, when the wireless signal propagates, it will encounter reflection, refraction, and scattering, resulting in the signal reaching the receiving end through multiple paths. The signals on these different paths will interfere with each other, causing fluctuations in the signal strength; multiple devices in the same wireless network using the network simultaneously will cause channel competition and affect the signal strength; it is worth noting that in actual situations, it is only necessary to ensure that the signal strength at the location of the target device is good. For the remaining locations, since there are no target devices, even if the signal strength is poor, it will not affect the normal use of the target device; then, the reference points are determined according to the reference line, and the pending curves are determined, and the abnormal curves are screened from them; it can be understood that when the pending curve is below the reference line, it means that within the time span corresponding to the pending curve, the signal strength at the target location is at a low level and cannot meet the normal needs of the device. Therefore, the corresponding pending curve is used as an abnormal curve. The reference line is determined based on the standard signal strength threshold, and the standard signal strength threshold can be obtained from experience; then, the minimum abnormal value is determined and the evaluation score is calculated; it should be noted that the larger the ratio of the time span of the abnormal curve to the collection period, the longer the time when the signal strength is at a low level, and the antenna transmission power of the target router should be adjusted; when the minimum abnormal value is smaller, it means that the signal strength level is lower, and the antenna transmission power of the target router also needs to be adjusted so that the signal strength at the target location can meet the device requirements; and α1 < α2 < … < α m , a larger correction coefficient is given to the standard signal strength obtained closer to the current time, so that the finally calculated evaluation score is closer to the current state, α1, α2, …, α m, which can be set by experience specifically; finally, count the proportion of the evaluation scores greater than or equal to the preset score threshold. When the proportion is greater than or equal to the preset proportion threshold, increase the antenna transmission power of the target router. It can be understood that in actual situations, high transmission power will increase electromagnetic radiation, which may have a certain impact on nearby devices and the human body; at the same time, excessive transmission power may cause the router to generate more heat, thus causing overheating problems. Overheating will not only affect the performance and lifespan of the router, but may also reduce its stability and reliability; therefore, it is necessary to determine whether to adjust the antenna transmission power of the target router. The present invention can automatically determine how to adjust the antenna transmission power of the router according to the standard signal strength within the acquisition period, improving the coverage and signal quality of the wireless network. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] Figure 1 is a flowchart showing a method for controlling the antenna transmission power of a router according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1 As shown, the present invention is a method for controlling the antenna transmission power of a router, including the following steps:

[0035] S1: Establish a database, in which an initial name is stored, and the initial name is the service set identifier of the wireless network within a preset monitoring area;

[0036] Determine the devices connected to the wireless network A within the monitoring area according to the initial name, and use them as target devices. Determine the positions of the target devices and use them as target positions, and use the router corresponding to the wireless network A as the target router;

[0037] S2: Periodically obtain the standard signal strength D at the target position within a preset acquisition period T. The standard signal strength is the signal strength of the wireless network A at the target position, and draw a curve f(t) of the standard signal strength changing with time;

[0038] Draw a straight line passing through the point (0, D') and parallel to the x-axis, and use it as a reference line. D' represents a preset standard signal strength threshold. Take the intersection point of the reference line and the curve of the standard signal strength varying with time as a reference point, and take the curve of the standard signal strength varying with time between two adjacent reference points as a curve to be determined;

[0039] When the curve to be determined is below the reference line, take it as an abnormal curve g(t), and calculate the minimum abnormal value G i =min(g i (t)), where g i (t) represents the i-th abnormal curve;

[0040] Calculate the evaluation score K through the formula. The formula is:

[0041]

[0042] m represents the total number of the abnormal curves, ΔT i represents the time span of the i-th abnormal curve, and α i represents a preset correction coefficient, and α1 < α2 < … < α m ;

[0043] S3: Statistically calculate the proportion R of the evaluation score K ≥ K'. K' represents a preset score threshold. When the proportion R ≥ R', start the adjustment. R' represents a preset proportion threshold.

[0044] It should be noted that a database is first established to store the initial names, which is the basis for subsequent screening of devices using the same wireless network (i.e., target devices); it can be understood that the present invention is applicable to a scenario where a device is only connected to one wireless network. The Service Set Identifier (SSID) is the name of the wireless network, and it is the unique identifier used to identify a wireless local area network. The SSID can be a string with a length of 0 to 32 characters, usually set by the network administrator to distinguish different wireless networks. Therefore, the target devices can be determined according to the initial names; thereafter, the target location and the target router are determined, which is the basis for subsequently increasing the antenna transmission power of the target router; it should be noted that the wireless networks connected by different devices may not be the same. When the initially connected wireless network is A, even if the signal strength of wireless network B is low at the location of the device, it will not affect the normal use of the device. Therefore, the target router needs to be determined to accurately adjust the antenna transmission power; thereafter, the standard signal strength at the target location is periodically collected, and a curve of the standard signal strength changing with time is plotted; it can be understood that in actual situations, the signal strength will fluctuate. For example, when the wireless signal propagates, it will encounter reflection, refraction, and scattering, resulting in the signal reaching the receiving end through multiple paths. The signals on these different paths will interfere with each other, causing fluctuations in the signal strength; multiple devices in the same wireless network using the network simultaneously will lead to channel competition and affect the signal strength; it is worth noting that in actual situations, it is only necessary to ensure that the signal strength at the location of the target device is good. For the remaining locations, since there are no target devices, even if the signal strength is poor, it will not affect the normal use of the target device; then, the reference points are determined according to the reference line, and the pending curves are determined, and the abnormal curves are screened therefrom; it can be understood that when the pending curve is below the reference line, it indicates that the signal strength at the target location is at a low level within the time span corresponding to the pending curve and cannot meet the normal needs of the device. Therefore, the corresponding pending curve is used as the abnormal curve. The reference line is determined based on the standard signal strength threshold, and the standard signal strength threshold can be obtained from experience; thereafter, the minimum abnormal value is determined and the evaluation score is calculated; it should be noted that the larger the ratio of the time span of the abnormal curve to the collection period, the longer the time when the signal strength is at a low level, and the antenna transmission power of the target router should be adjusted; when the minimum abnormal value is smaller, it indicates that the signal strength level is lower, and the antenna transmission power of the target router also needs to be adjusted so that the signal strength at the target location can meet the device requirements; and α1 < α2 < … < α m , a larger correction coefficient is given to the standard signal strength obtained closer to the current time, so that the finally calculated evaluation score is closer to the current state, α1, α2, …, α m, which can be specifically set by experience; finally, count the proportion of the evaluation scores greater than or equal to the preset score threshold. When the proportion is greater than or equal to the preset proportion threshold, increase the antenna transmission power of the target router. It can be understood that in actual situations, high transmission power will increase electromagnetic radiation, which may have a certain impact on nearby devices and the human body; at the same time, excessive transmission power may cause the router to generate more heat, leading to overheating problems. Overheating will not only affect the performance and lifespan of the router, but also reduce its stability and reliability. Therefore, it is necessary to determine whether to adjust the antenna transmission power of the target router.

[0045] In another preferred embodiment of the present invention, in step S1, when the number of target devices corresponding to the wireless network A is 0, the subsequent steps are not executed until the number of target devices corresponding to the wireless network A is greater than or equal to 1.

[0046] It is worth noting that if no target device is connected to the wireless network A, then it is meaningless to execute subsequent steps (such as collecting signal strength, calculating evaluation scores, etc.) to ensure the normal operation of the connected devices; by avoiding unnecessary calculations and data processing, system resources are saved and efficiency is improved.

[0047] In another preferred embodiment of the present invention, in step S3, the adjustment process specifically includes:

[0048] Determine the standard signal strength at the target position at the end of the collection period, and obtain the minimum standard signal strength D min = min(DT1, DT2,..., DTn), DT n represents the standard signal strength at the nth target position at the end of the collection period, and increase the antenna transmission power of the target router at preset antenna transmission power intervals until the standard signal strength at the abnormal position reaches D', and the abnormal position is the target position corresponding to the minimum standard signal strength D min corresponding target position.

[0049] It can be understood that by determining the signal strength at the end of the collection period, it is ensured that the signal strength adjustment is based on the latest data (the network situation of the target position at the current time), improving the effectiveness and accuracy of the adjustment; obtaining the minimum standard signal strength as the adjustment benchmark ensures optimization at the position with the worst signal strength, so as to ensure that the signal strength of all target positions can reach or exceed the preset standard signal strength threshold, thereby ensuring the reliability and stability of the wireless network; by gradually increasing the antenna power, large-scale adjustments at one time can be avoided, reducing unnecessary resource waste and electromagnetic radiation. At the same time, gradual adjustment helps to minimize the potential impact on the environment and devices while meeting the signal strength requirements.

[0050] In another preferred embodiment of the present invention, when the minimum standard signal strength D min ≥ D', the following steps are performed:

[0051] Calculate the average standard signal strength and determine the minimum value DAVE of the average standard signal strength min = min(DAVEjh), DAVEj h = (DAVE1, DAVE2,..., DAVE n ), and take the target position corresponding to the minimum value of the average standard signal strength as the abnormal position, and perform subsequent steps to adjust the antenna transmission power of the target router.

[0052] It should be noted that when the minimum standard signal strength D min ≥ D', it means that the signal strength at each target position at the end time point of the acquisition period has met the basic requirements. However, this does not mean that the signal strength can also meet the normal requirements of the target device in subsequent time; by calculating the average standard signal strength, evaluating the signal quality during the entire period, and taking the minimum value of the average standard signal strength as the adjustment benchmark, the antenna transmission power of the target router is adjusted to ensure the reliability and stability of the wireless network.

[0053] In another preferred embodiment of the present invention, during the adjustment process, set the maximum antenna transmission power P max , when the antenna transmission power of the target router reaches P max , and the standard signal strength at the abnormal position still does not reach D', the following steps are performed:

[0054] Obtain the number C of antennas of the target router, and determine the angle adjustment range of each antenna. Take the negative value of the standard signal strength threshold D' as the fitness function, and determine the optimal angle set C jh = (B1, B2,..., B C ) when the standard signal strength in the baseline direction reaches D' through the genetic algorithm, where BC represents the angle of the Cth antenna of the target router when the standard signal strength in the baseline direction reaches D';

[0055] Among them, the process of determining the baseline direction specifically includes:

[0056] Taking the center of the target router as the reference point, draw a ray starting from the reference point and passing through the abnormal position, and take the direction of the ray as the baseline direction.

[0057] It should be noted that, in order to ensure the security of wireless communication, avoid interference with other electronic devices, and comply with electromagnetic radiation standards, the transmitting power of the router in Taining County generally has a maximum limit, P max which can be determined by experience or actual situation; when the transmitting power of the antenna of the target router reaches P max but still cannot meet the requirements, the signal strength at a specific position can be enhanced by adjusting the angle of the antenna, so as to optimize the signal coverage and quality without increasing the transmitting power, ensure that the signal strength in the target area reaches the expected standard, and thus improve the overall performance of the wireless network; the genetic algorithm is an optimization algorithm based on natural selection and genetic mechanisms. It simulates the process of natural evolution and finds the optimal solution in the search space through operations such as selection, crossover, and mutation. It is suitable for solving complex and multi-variable optimization problems. The global search ability and adaptability of the genetic algorithm give it significant advantages in complex antenna angle optimization problems.

[0058] In another preferred embodiment of the present invention, in step S2, when the reference line coincides with the curve of the standard signal strength changing with time at any place, the reference line and the curve of the standard signal strength changing with time at the coincidence position are removed, and the subsequent steps are executed.

[0059] In another preferred embodiment of the present invention, in step S2, the standard signal strength threshold D' is determined based on the target position, and the standard signal strength thresholds at different target positions are different. The shorter the distance between the target position and the target router, the larger the corresponding standard signal strength threshold.

[0060] It is worth noting that the wireless signal will attenuate as the distance increases during the propagation process. The farther the distance, the weaker the signal strength. This attenuation is caused by the scattering and absorption of energy during the signal propagation process; therefore, the signal strength threshold corresponding to the target position with a shorter distance will be higher to improve the accuracy of evaluating whether to adjust the transmitting power of the antenna of the target router.

[0061] In another preferred embodiment of the present invention, in step S2, when there is the minimum outlier G i ≤G' and / or , the subsequent steps are not executed, and the adjustment is started. G' represents a preset second standard signal strength, and G' < D';

[0062] When there is no pending curve in a certain collection period, the transmitting power of the antenna of the target router is reduced so that the standard signal strength at each target position reaches D'.

[0063] It should be noted that G i≤G' indicates that the signal strength is too low, and failure to make adjustments may affect the normal use of the target device; while indicates that the time with relatively low signal strength accounts for a relatively long proportion, and it is necessary to adjust the antenna transmission power of the target router to ensure the normal use of the target device; when there is no pending curve in a certain collection period, it means that all target devices can work normally. Therefore, the antenna transmission power of the target router can be reduced to reduce energy consumption. The specific adjustment method is analogous to the adjustment process and will not be elaborated here.

[0064] The above has described an embodiment of the present invention in detail, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application shall still fall within the scope covered by the patent of the present invention.

Claims

1. A method for controlling antenna transmission power of a router, characterized in that: The following steps are involved: S1: Establishing a database, wherein the database stores an initial name, wherein the initial name is a service set identifier of a wireless network within a preset monitoring area; Determine the device connected to the wireless network A in the monitoring area according to the initial name and use it as the target device, determine the location of the target device and use it as the target location, and use the router corresponding to the wireless network A as the target router; S2: periodically acquiring the standard signal strength D at the target location within a preset acquisition period T, where the standard signal strength is the signal strength of the wireless network A at the target location, and drawing a curve f(t) showing the standard signal strength changing with time; Draw a straight line passing through the point (0, D') and parallel to the x-axis, and use it as a reference line, D' represents a preset standard signal strength threshold, and use the intersection of the reference line and the curve of the standard signal strength varying with time as a reference point, and use the curve of the standard signal strength varying with time between two adjacent reference points as a pending curve; When the undetermined curve is below the reference line, it is regarded as an abnormal curve g(t), and the minimum abnormal value Gi=min(gi(t)) is calculated, where gi(t) represents the i-th abnormal curve; The evaluation score K is calculated by the formula: m represents the total number of abnormal curves, ΔTi represents the time span of the ith abnormal curve, αi represents a preset correction coefficient, and α1<α2<…<αm; S3: Counting the ratio R of the evaluation scores K≥K', where K' represents a preset score threshold, and when the ratio R≥R', starting adjustment, where R' represents a preset ratio threshold.

2. The method for controlling antenna transmission power of a router according to claim 1, characterized in that: In the step S1, when the number of target devices corresponding to the wireless network A is 0, the subsequent steps are not executed until the number of target devices corresponding to the wireless network A is greater than or equal to 1.

3. The method for controlling antenna transmission power of a router according to claim 1, characterized in that: In the step S3, the adjustment process specifically includes: Determine the standard signal strength at the target position at the end of the collection period, and obtain the minimum standard signal strength Dmin=min(DT1, DT2, ..., DTn), where DTn represents the standard signal strength at the nth target position at the end of the collection period, and increase the antenna transmission power of the target router at a preset antenna transmission power interval until the standard signal strength at the abnormal position reaches D', and the abnormal position is the target position corresponding to the minimum standard signal strength Dmin.

4. The method for controlling antenna transmission power of a router according to claim 3, characterized in that: When the minimum standard signal strength Dmin≥D', the following steps are performed: Calculate the average standard signal strength And determine the minimum average standard signal strength DAVEmin=min(DAVEjh), DAVEjh=(DAVE1, DAVE2, ..., DAVEn), and take the target position corresponding to the minimum average standard signal strength as the abnormal position, and execute subsequent steps to adjust the antenna transmission power of the target router.

5. The method for controlling antenna transmission power of a router according to claim 3, characterized in that: During the adjustment process, the maximum value Pmax of the antenna transmission power is set. When the antenna transmission power of the target router reaches Pmax, and the standard signal strength at the abnormal position still does not reach D', the following steps are performed: The number C of antennas of the target router is obtained, and the angle adjustment range of each antenna is determined. The negative value of the standard signal strength threshold D' is used as the fitness function, and the optimal angle set Cjh = (B1, B2, ..., B C ), BC represents the angle of the Cth antenna of the target router when the standard signal strength in the baseline direction reaches D'; The process of determining the direction of the reference line specifically includes: Taking the center of the target router as a reference point, draw a ray starting from the reference point and passing through the abnormal position, and use the direction of the ray as the reference line direction.

6. The method for controlling antenna transmission power of a router according to claim 1, characterized in that: In the step S2, when the reference line and the curve of the standard signal strength varying with time overlap at any place, the reference line and the curve of the standard signal strength varying with time at the overlapping position are removed, and the subsequent steps are executed.

7. The method for controlling antenna transmission power of a router according to claim 1, characterized in that: In step S2, the standard signal strength threshold D' is determined based on the target location. The standard signal strength thresholds at different target locations are different. The shorter the distance between the target location and the target router, the larger the corresponding standard signal strength threshold.

8. The method for controlling antenna transmission power of a router according to claim 1, characterized in that: In step S2, when there is the minimum abnormal value Gi≤G' and / or When , the subsequent steps are not executed, and the adjustment is started, G' represents the preset second standard signal strength, and G'<D'; When there is no undetermined curve in a certain collection cycle, the antenna transmission power of the target router is reduced so that the standard signal strength at each target position reaches D'.

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