A method for improving network signal quality

Abstract

The invention discloses a method for improving the quality of network signals, which belongs to the technical field of device heat dissipation control, and specifically comprises: adjusting the size of the transmission power of a transmission device at intervals, and acquiring the temperature of the transmission device in real time; under any transmission power, not turning on the heat dissipation device, and generating a temperature change curve over time; turning on the heat dissipation device and gradually increasing the heat dissipation power of the heat dissipation device to obtain a standard temperature rise curve; obtaining an optimal temperature rise curve from the temperature rise curve according to the actual temperature rise curve, and taking the optimal heat dissipation power corresponding to the optimal temperature rise curve as the initial heat dissipation power; acquiring the actual temperature change curve after turning on the heat dissipation device and comparing it with the standard temperature rise curve, and adjusting the heat dissipation power of the heat dissipation device according to the comparison result; the invention judges the change of the external conditions of the transmission device according to the temperature rise change, and dynamically adjusts the heat dissipation power of the heat dissipation device to avoid the reduction of the efficiency of the power amplifier, thereby affecting the transmission intensity and quality of the signal.

Description

Technical Field

[0001] The present invention relates to the technical field of device heat dissipation control, and in particular to a method for improving network signal quality. Background Art

[0002] In modern wireless communication systems, signal devices (such as base stations, routers, and wireless access points) undertake important tasks of signal transmission and reception. The quality and stability of the signal have a significant impact on the performance of the entire communication system. When the signal device is working, the current flow of internal components (such as power amplifiers and transmitters) will generate heat. Excessive temperature will reduce the efficiency of the power amplifier, which will in turn affect the transmission strength and quality of the signal. In addition, temperature changes will cause changes in the electrical characteristics of the RF components, resulting in a shift in the transmission frequency, affecting the signal analysis at the receiving end, and causing network signal degradation.

[0003] The prior art usually uses a heat dissipation device to reduce the temperature of the transmitting device to improve the cooling effect of the transmitting device. Since the actual output power of the transmitting device will continue to change due to external influences, the heat generated will also continue to change. If a fixed lower heat dissipation power is used, the internal temperature of the transmitting device will be too high, thereby affecting the signal transmission intensity and quality. If a fixed higher heat dissipation power is used, the heat dissipation energy consumption will be greatly increased. Summary of the invention

[0004] The purpose of the present invention is to provide a method for improving network signal quality to solve the following technical problems:

[0005] The prior art usually uses a heat dissipation device to reduce the temperature of the transmitting device to improve the cooling effect of the transmitting device. Since the actual output power of the transmitting device will continue to change due to external influences, the heat generated will also continue to change. If a fixed lower heat dissipation power is used, the internal temperature of the transmitting device will be too high, thereby affecting the signal transmission intensity and quality. If a fixed higher heat dissipation power is used, the heat dissipation energy consumption will be greatly increased.

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

[0007] A method for improving network signal quality, S1, adjusting the transmission power of a transmitting device at intervals and obtaining the temperature of the transmitting device in real time; at any transmission power, without turning on a heat dissipation device, generating a temperature change curve over time and marking it as a temperature rise curve Si, where i is a positive integer;

[0008] S2, under any transmission power, turn on the heat dissipation device, preset the initial heat dissipation power P0, obtain the temperature of the transmission device in real time, if the temperature continues to change when the temperature rises to the temperature limit, gradually increase the initial heat dissipation power P0 with a preset threshold, and use the increased heat dissipation power as the new initial heat dissipation power and mark it as Pi, if there is any initial heat dissipation power Pi, when the temperature of the transmission device rises to the temperature limit, the temperature no longer changes, record the heat dissipation power of the heat dissipation device at this time and mark it as the optimal heat dissipation power of the transmission power, and generate a curve of the change of the temperature of the transmission device over time under the optimal heat dissipation power and mark it as the standard temperature rise curve Di;

[0009] S3, when the transmitting device is started, preset an observation time T1, obtain the actual temperature rise curve of the transmitting device within the observation time period T1, compare and screen the current actual temperature rise curve with the temperature rise curve Si, obtain the optimal temperature rise curve, use the transmitting power corresponding to the optimal temperature rise curve as the transmitting power of the current transmitting device, turn on the heat dissipation device and select the optimal heat dissipation power of the current transmitting power as the initial heat dissipation power;

[0010] S4, real-time acquisition of the actual temperature rise curve of the transmitting device within the time period T2 after the heat dissipation device is turned on, and a similarity comparison is performed with the standard temperature rise curve to obtain a similarity value H. If the similarity value is less than a preset threshold, the heat dissipation power of the current heat dissipation device is adjusted; if the similarity value is greater than the preset threshold, the heat dissipation power of the current heat dissipation device is maintained.

[0011] As a further solution of the present invention: the process of acquiring the temperature of the emitting device is:

[0012] A plurality of collection points are set on the transmitting device at preset distance intervals, and the temperature at each collection point is obtained in real time and the mean is calculated, and the difference between the temperature at each collection point and the mean is calculated. When the difference is greater than or equal to the preset value, the temperature at the corresponding collection point is discarded, and the mean is recalculated, and the recalculated mean is used as the temperature data of the transmitting device.

[0013] As a further solution of the present invention: the generation process of the standard temperature rise curve Di is:

[0014] Under any transmission power, the optimal power corresponding to the corresponding transmission power is selected as the initial heat dissipation power for starting the heat dissipation device, the temperature of the transmission device is obtained in real time, and a temperature change curve with time as the horizontal axis and the temperature of the transmission device as the vertical axis is generated. The change curve is calibrated as the standard temperature rise curve Di.

[0015] As a further solution of the present invention: the process of obtaining the optimal temperature rise curve is:

[0016] Get the temperature of the transmitter just before it is started and mark it as t初 , with the t 初 Temperature is used as the initial temperature, time period T1 is used as the extraction duration, and the corresponding curve segment is intercepted from the temperature rise curve Si under any transmission power and marked as a comparative temperature rise curve to obtain several comparative temperature rise curves. A fitting function Y=KX+L is constructed to fit all comparative temperature rise curves, and the values ​​of K and L are obtained by the least squares method. The difference C between the K value of any comparative temperature rise curve and the current actual temperature rise curve K1 is calculated, and the C value with the smallest difference with K1 is selected. The comparative temperature rise curve corresponding to the minimum C value is selected and marked as the optimal temperature rise curve.

[0017] As a further solution of the present invention: in S4, the specific calculation process of the similarity value H is:

[0018] Get the temperature of the transmitter at the end of observation time T1 and mark it as t 末 , with the t 末 The temperature is taken as the initial temperature, the time period T2 is taken as the extraction duration, the corresponding standard temperature rise curve is intercepted from the standard temperature rise curve and marked as the standard temperature rise curve A, the actual temperature rise curve B and the standard temperature rise curve A are divided into multiple sub-curves according to the same time interval, the endpoint temperature data of each sub-curve is selected and marked as the comparison data, the total number of comparison data is marked as n, and the distance matrix between the actual temperature rise curve and the standard temperature rise curve is constructed according to the data corresponding to the n points. The distance matrix is:

[0019] ;

[0020] Where |Bn-An| is the difference distance value between the temperature data of the actual temperature rise curve B and the standard temperature rise curve A. The curve similarity function is constructed using the dynamic time warping method based on the distance matrix. The curve similarity function formula is:

[0021] ;

[0022] Wherein, H is the similarity value between the actual temperature rise curve B and the standard temperature rise curve A.

[0023] As a further solution of the present invention: in S4, the specific process of adjusting the heat dissipation power is:

[0024] The temperature data mean value V1 of the actual temperature curve and the temperature data mean value V2 of the standard temperature curve are calculated respectively. If V1 is greater than V2, the heat dissipation power of the heat dissipation device is increased; if V1 is less than V2, the heat dissipation power of the heat dissipation device is reduced.

[0025] As a further solution of the present invention: the specific adjustment process of the heat dissipation power is:

[0026] S1, calculate the absolute value of the difference between V1 and V2 and mark it as C, obtain the heat dissipation power P1 of the current heat dissipation device, extract the standard temperature rise curve S' corresponding to the heat dissipation power P1, and use C as the offset value to offset the extracted temperature rise curve S';

[0027] S2, if the heat dissipation power of the current heat dissipation device is increased, the temperature rise curve S' is shifted upward, and the shifted curve is compared with the temperature rise curve Si under any transmission power, and the transmission power corresponding to the most similar temperature rise curve is used as the transmission power of the current transmission device, and the best heat dissipation power under the current transmission power is selected and marked as P2, and the heat dissipation power of the current heat dissipation device is adjusted, P adjustment = P2-P1;

[0028] S3: If the heat dissipation power of the current heat dissipation device is reduced, the temperature rise curve S' is shifted downward, and the shifted curve is compared with the temperature rise curve Si under any transmission power. The transmission power corresponding to the most similar temperature rise curve is used as the transmission power of the current transmission device. The best heat dissipation power under the current transmission power is selected and marked as P2, and the heat dissipation power of the current heat dissipation device is adjusted, P adjustment = P1-P2.

[0029] Beneficial effects of the present invention:

[0030] The present invention adjusts the transmission power of the transmitting device at intervals, obtains the temperature of the transmitting device in real time, obtains the temperature rise curve of the device temperature under different transmission powers of the transmitting device and the standard temperature rise curve of the device under the optimal heat dissipation power, selects the optimal temperature rise curve from the temperature rise curve according to the actual temperature change curve, thereby selecting the heat dissipation power most suitable for the current conditions as the initial heat dissipation power of the current heat dissipation, and obtains the actual temperature rise curve after the heat dissipation device is turned on in real time, and performs a similarity comparison with the standard temperature rise curve. If the similarity value is less than a preset threshold, the heat dissipation power of the current heat dissipation device is adjusted. The present invention improves the working efficiency and reliability of the transmitting device, avoids the occurrence of transmission frequency deviation, affects the signal analysis of the receiving end, and causes the network signal to be reduced. Through the accurate temperature rise curve and the selection of the optimal heat dissipation power, the temperature of the transmitting device can be effectively controlled to prevent the power amplifier efficiency from being reduced due to excessive temperature, thereby affecting the transmission intensity and quality of the signal, and the power change of the transmitting device is judged based on the difference in the temperature change curve, and the heat dissipation power of the heat dissipation device is dynamically adjusted, so as to ensure the heat dissipation requirements of the transmitting device under different external influence conditions and reduce the energy consumption of the heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0032] Figure 1 The present invention is a flow chart of a method for improving network signal quality. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 As shown, the present invention is a method for improving network signal quality, comprising the following steps:

[0035] S1, adjust the transmission power of the transmitting device at intervals and obtain the temperature of the transmitting device in real time; at any transmission power, do not turn on the heat dissipation device, generate a temperature change curve over time and mark it as a temperature rise curve Si, where i is a positive integer;

[0036] S2, under any transmission power, turn on the heat dissipation device, preset the initial heat dissipation power P0, obtain the temperature of the transmission device in real time, if the temperature continues to change when the temperature rises to the temperature limit, gradually increase the initial heat dissipation power P0 with a preset threshold, and use the increased heat dissipation power as the new initial heat dissipation power and mark it as Pi, if there is any initial heat dissipation power Pi, when the temperature of the transmission device rises to the temperature limit, the temperature no longer changes, record the heat dissipation power of the heat dissipation device at this time and mark it as the optimal heat dissipation power of the transmission power, and generate a curve of the change of the temperature of the transmission device over time under the optimal heat dissipation power and mark it as the standard temperature rise curve Di;

[0037] S3, when the transmitting device is started, preset an observation time T1, obtain the actual temperature rise curve of the transmitting device within the observation time period T1, compare and screen the current actual temperature rise curve with the temperature rise curve Si, obtain the optimal temperature rise curve, use the transmitting power corresponding to the optimal temperature rise curve as the transmitting power of the current transmitting device, turn on the heat dissipation device and select the optimal heat dissipation power of the current transmitting power as the initial heat dissipation power;

[0038] S4, real-time acquisition of the actual temperature rise curve of the transmitting device within the time period T2 after the heat dissipation device is turned on, and a similarity comparison is performed with the standard temperature rise curve to obtain a similarity value H. If the similarity value is less than a preset threshold, the heat dissipation power of the current heat dissipation device is adjusted; if the similarity value is greater than the preset threshold, the heat dissipation power of the current heat dissipation device is maintained.

[0039] The present invention adjusts the transmission power of the transmitting device at intervals, obtains the temperature of the transmitting device in real time, obtains the temperature rise curve of the device temperature under different transmission powers of the transmitting device and the standard temperature rise curve of the device under the optimal heat dissipation power, selects the optimal temperature rise curve from the temperature rise curve according to the actual temperature change curve, thereby selecting the heat dissipation power most suitable for the current conditions as the initial heat dissipation power of the current heat dissipation, and obtains the actual temperature rise curve after the heat dissipation device is turned on in real time, and performs a similarity comparison with the standard temperature rise curve. If the similarity value is less than a preset threshold, the heat dissipation power of the current heat dissipation device is adjusted. The present invention improves the working efficiency and reliability of the transmitting device, avoids the occurrence of transmission frequency deviation, affects the signal analysis of the receiving end, and causes the network signal to be reduced. Through the accurate temperature rise curve and the selection of the optimal heat dissipation power, the temperature of the transmitting device can be effectively controlled to prevent the power amplifier efficiency from being reduced due to excessive temperature, thereby affecting the transmission intensity and quality of the signal, and the power change of the transmitting device is judged based on the difference in the temperature change curve, and the heat dissipation power of the heat dissipation device is dynamically adjusted, so as to ensure the heat dissipation requirements of the transmitting device under different external influence conditions and reduce the energy consumption of the heat dissipation device.

[0040] In a preferred embodiment of the present invention, the process of acquiring the temperature of the emitting device is as follows:

[0041] A plurality of collection points are set on the transmitting device at preset distance intervals, and the temperature at each collection point is obtained in real time and the mean is calculated, and the difference between the temperature at each collection point and the mean is calculated. When the difference is greater than or equal to the preset value, the temperature at the corresponding collection point is discarded, and the mean is recalculated, and the recalculated mean is used as the temperature data of the transmitting device.

[0042] In another preferred embodiment of the present invention, the generation process of the standard temperature rise curve Di is:

[0043] Under any transmission power, the optimal power corresponding to the corresponding transmission power is selected as the initial heat dissipation power for starting the heat dissipation device, the temperature of the transmission device is obtained in real time, and a temperature change curve with time as the horizontal axis and the temperature of the transmission device as the vertical axis is generated. The change curve is calibrated as the standard temperature rise curve Di.

[0044] In another preferred embodiment of the present invention, the process of obtaining the optimal temperature rise curve is:

[0045] Get the temperature of the transmitter just before it is started and mark it as t 初 , with the t 初Temperature is used as the initial temperature, time period T1 is used as the extraction duration, and the corresponding curve segment is intercepted from the temperature rise curve Si under any transmission power and marked as a comparative temperature rise curve to obtain several comparative temperature rise curves. A fitting function Y=KX+L is constructed to fit all comparative temperature rise curves, and the values ​​of K and L are obtained by the least squares method. The difference C between the K value of any comparative temperature rise curve and the current actual temperature rise curve K1 is calculated, and the C value with the smallest difference with K1 is selected. The comparative temperature rise curve corresponding to the minimum C value is selected and marked as the optimal temperature rise curve.

[0046] In another preferred embodiment of the present invention, in S4, the specific calculation process of the similarity value H is:

[0047] Get the temperature of the transmitter at the end of observation time T1 and mark it as t 末 , with the t 末 The temperature is taken as the initial temperature, the time period T2 is taken as the extraction duration, the corresponding standard temperature rise curve is intercepted from the standard temperature rise curve and marked as the standard temperature rise curve A, the actual temperature rise curve B and the standard temperature rise curve A are divided into multiple sub-curves according to the same time interval, the endpoint temperature data of each sub-curve is selected and marked as the comparison data, the total number of comparison data is marked as n, and the distance matrix between the actual temperature rise curve and the standard temperature rise curve is constructed according to the data corresponding to the n points. The distance matrix is:

[0048] ;

[0049] Where |Bn-An| is the difference distance value between the temperature data of the actual temperature rise curve B and the standard temperature rise curve A. The curve similarity function is constructed based on the distance matrix using the dynamic time warping method. The curve similarity function formula is:

[0050] ;

[0051] Wherein, H is the similarity value between the actual temperature rise curve B and the standard temperature rise curve A.

[0052] In another preferred embodiment of the present invention, in S4, the specific process of adjusting the heat dissipation power is:

[0053] The temperature data mean value V1 of the actual temperature curve and the temperature data mean value V2 of the standard temperature curve are calculated respectively. If V1 is greater than V2, the heat dissipation power of the heat dissipation device is increased; if V1 is less than V2, the heat dissipation power of the heat dissipation device is reduced.

[0054] In another preferred embodiment of the present invention, the specific adjustment process of the heat dissipation power is:

[0055] S1, calculate the absolute value of the difference between V1 and V2 and mark it as C, obtain the heat dissipation power P1 of the current heat dissipation device, extract the standard temperature rise curve S' corresponding to the heat dissipation power P1, and use C as the offset value to offset the extracted temperature rise curve S';

[0056] S2, if the heat dissipation power of the current heat dissipation device is increased, the temperature rise curve S' is shifted upward, and the shifted curve is compared with the temperature rise curve Si under any transmission power, and the transmission power corresponding to the most similar temperature rise curve is used as the transmission power of the current transmission device, and the best heat dissipation power under the current transmission power is selected and marked as P2, and the heat dissipation power of the current heat dissipation device is adjusted, P adjustment = P2-P1;

[0057] S3: If the heat dissipation power of the current heat dissipation device is reduced, the temperature rise curve S' is shifted downward, and the shifted curve is compared with the temperature rise curve Si under any transmission power. The transmission power corresponding to the most similar temperature rise curve is used as the transmission power of the current transmission device. The best heat dissipation power under the current transmission power is selected and marked as P2, and the heat dissipation power of the current heat dissipation device is adjusted, P adjustment = P1-P2.

[0058] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for improving network signal quality, characterized in that: The following steps are involved: S1, adjust the transmission power of the transmitting device at intervals and obtain the temperature of the transmitting device in real time; at any transmission power, do not turn on the heat dissipation device, generate a temperature change curve over time and mark it as a temperature rise curve Si, where i is a positive integer; S2, under any transmission power, turn on the heat dissipation device, preset the initial heat dissipation power P0, obtain the temperature of the transmission device in real time, if the temperature continues to change when the temperature rises to the temperature limit, gradually increase the initial heat dissipation power P0 with a preset threshold, and use the increased heat dissipation power as the new initial heat dissipation power and mark it as Pi, if there is any initial heat dissipation power Pi, when the temperature of the transmission device rises to the temperature limit, the temperature no longer changes, record the heat dissipation power of the heat dissipation device at this time and mark it as the optimal heat dissipation power of the transmission power, and generate a curve of the change of the temperature of the transmission device over time under the optimal heat dissipation power and mark it as the standard temperature rise curve Di; S3, when the transmitting device is started, preset an observation time T1, obtain the actual temperature rise curve of the transmitting device within the observation time period T1, compare and screen the current actual temperature rise curve with the temperature rise curve Si, obtain the optimal temperature rise curve, use the transmitting power corresponding to the optimal temperature rise curve as the transmitting power of the current transmitting device, turn on the heat dissipation device and select the optimal heat dissipation power of the current transmitting power as the initial heat dissipation power; S4, obtaining in real time the actual temperature rise curve of the transmitting device in the time period T2 after the heat dissipation device is turned on, and performing a similarity comparison with the standard temperature rise curve to obtain a similarity value H. If the similarity value is less than a preset threshold, the heat dissipation power of the current heat dissipation device is adjusted; if the similarity value is greater than the preset threshold, the heat dissipation power of the current heat dissipation device is maintained; The generation process of the standard temperature rise curve Di is: Under any transmitting power, the optimal power corresponding to the corresponding transmitting power is selected as the initial heat dissipation power for starting the heat dissipation device, the temperature of the transmitting device is obtained in real time, and a temperature variation curve with time as the horizontal axis and the temperature of the transmitting device as the vertical axis is generated, and the variation curve is calibrated as the standard temperature rise curve Di; The process of obtaining the optimal temperature rise curve is: Get the temperature of the transmitter just before it is started and mark it as t 初 , with t 初 temperature as the initial temperature, time period T1 as the extraction duration, intercept the corresponding curve segment from the temperature rise curve Si under any transmission power and mark it as a comparative temperature rise curve, obtain several comparative temperature rise curves, construct a fitting function Y=KX+L to fit all comparative temperature rise curves, where K is the slope of the comparative temperature rise curve, L is the intercept of the comparative temperature rise curve, and obtain the values ​​of K and L by the least squares method, calculate the difference C between the slope K of any comparative temperature rise curve and the slope K1 of the current actual temperature rise curve, select the C value with the smallest difference with the slope K1 value, select the comparative temperature rise curve corresponding to the minimum C value and mark it as the optimal temperature rise curve; The specific calculation process of the similarity value H is: Get the temperature of the transmitter at the end of observation time T1 and mark it as t 末 , with t 末 The temperature is taken as the initial temperature, the time period T2 is taken as the extraction duration, the corresponding standard temperature rise curve is intercepted from the standard temperature rise curve and marked as the standard temperature rise curve A, the actual temperature rise curve B and the standard temperature rise curve A are divided into multiple sub-curves according to the same time interval, the endpoint temperature data of each sub-curve is selected and marked as the comparison data, the total number of comparison data is marked as n, and the distance matrix between the actual temperature rise curve and the standard temperature rise curve is constructed according to the data corresponding to the n points. The distance matrix is: ； Among them, B1.B2…B n It is the n temperature data points recorded at fixed time intervals starting from the starting point of the actual temperature rise curve B, A1.A2…A n It is the n temperature data points recorded at fixed time intervals starting from the starting point of the standard temperature rise curve A; | B n -A n | is the difference distance value between the temperature data of the actual temperature rise curve B and the standard temperature rise curve A. The curve similarity function is constructed according to the distance matrix using the dynamic time warping method. The curve similarity function formula is: ； Wherein, H is the similarity value between the actual temperature rise curve B and the standard temperature rise curve A, and Ddtw(B, A) is the shortest cumulative path distance of the distance matrix.

2. A method for improving network signal quality according to claim 1, characterized in that: The process of acquiring the temperature of the transmitting device is as follows: A plurality of collection points are set on the transmitting device at preset distance intervals, and the temperature at each collection point is obtained in real time and the mean is calculated, and the difference between the temperature at each collection point and the mean is calculated. When the difference is greater than or equal to the preset value, the temperature at the corresponding collection point is discarded, and the mean is recalculated, and the recalculated mean is used as the temperature data of the transmitting device.

3. A method for improving network signal quality according to claim 1, characterized in that: In S4, the specific process of adjusting the heat dissipation power is as follows: The temperature data mean value V1 of the actual temperature curve and the temperature data mean value V2 of the standard temperature curve are calculated respectively. If V1 is greater than V2, the heat dissipation power of the heat dissipation device is increased; if V1 is less than V2, the heat dissipation power of the heat dissipation device is reduced.

4. A method for improving network signal quality according to claim 3, characterized in that: The specific adjustment process of heat dissipation power is as follows: S1, calculate the absolute value of the difference between V1 and V2 and mark it as C, obtain the heat dissipation power P1 of the current heat dissipation device, extract the standard temperature rise curve S' corresponding to the heat dissipation power P1, and use C as the offset value to offset the extracted temperature rise curve S'; S2, if the heat dissipation power of the current heat dissipation device is increased, the temperature rise curve S' is shifted upward, and the shifted curve is compared with the temperature rise curve Si under any transmission power, and the transmission power corresponding to the most similar temperature rise curve is used as the transmission power of the current transmission device, and the best heat dissipation power under the current transmission power is selected and marked as P2, and the heat dissipation power of the current heat dissipation device is adjusted, P adjustment = P2-P1; S3: If the heat dissipation power of the current heat dissipation device is reduced, the temperature rise curve S' is shifted downward, and the shifted curve is compared with the temperature rise curve Si under any transmission power. The transmission power corresponding to the most similar temperature rise curve is used as the transmission power of the current transmission device. The best heat dissipation power under the current transmission power is selected and marked as P2, and the heat dissipation power of the current heat dissipation device is adjusted, P adjustment = P1-P2.

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