Combined communication power supply aging detection method and system

Abstract

The invention relates to the field of power supply aging detection, in particular to a combined communication power supply aging detection method and system, which are used for solving the problems of incomplete detection means coverage and certain coverage defects in power supply aging detection during power supply aging test. Comprising an environment pressurization unit, an output detection unit, a process monitoring unit and a parameter judgment module, the aging environment is controlled step by step, so that the stability of the aging environment is fully maintained in the aging process, the voltage output and the current output of the power supply are respectively detected in the power supply aging detection process, and the detection result is comprehensively analyzed in combination with the multi-stage change load. Therefore, the stability of the power supply output and the coupling between the power supply output and the load change are analyzed, the coverage of detection items in the power supply aging detection process is expanded, the influence caused by power supply aging can be detected more comprehensively, and potential safety hazards which cannot be reflected by conventional data during power supply aging detection are supplemented.

Description

Technical Field

[0001] The present invention relates to the field of power supply aging detection, and in particular to a combined communication power supply aging detection method and system. Background Art

[0002] Power aging refers to the production process of simulating a high-temperature, high-harsh test environment to burn in high-performance electronic products for a long time to improve product safety, stability and reliability. It specifically involves the design principles, structural requirements, basic internal settings, process monitoring, etc. of the aging room; At present, the power aging detection system in the prior art still has shortcomings. Most of the existing power aging monitoring systems perform performance tests on the power supply after aging the power supply for a certain period of time, and obtain the slice-type power aging impact based on the results of the performance test. Therefore, even if continuous collection can be performed during operation, the obtained power aging results are still slice-type power aging results at many moments, and there is still a lack of sufficient sampling detection means for the fluctuation of the power supply at output and the output change response time when the load changes, resulting in incomplete coverage of the detection means and certain coverage defects in the aging detection of the power supply; In view of the above technical problems, this application proposes a solution. Summary of the invention

[0003] In the process of power supply aging detection, the present invention detects the voltage and current outputs of the power supply respectively, and comprehensively analyzes the detection results in combination with the load with multiple stages of changes, so as to analyze the stability of the power supply output and the coupling between the power supply output and the load change, expand the coverage of the detection items in the power supply aging detection process, and can more comprehensively detect the impact of power supply aging, thereby supplementing the safety hazards that cannot be reflected by conventional data during power supply aging detection, and solves the problem that the detection means are not fully covered during power supply aging testing and there are certain coverage defects in the aging detection of the power supply, and proposes a combined communication power supply aging detection method and system.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A combined communication power supply aging detection method comprises the following steps: Step 1: Aging environment detection; Step 2: Aging environment adjustment; Step 3: Load and output collection; Step 4: Comprehensive analysis of load and output; Step 5: Determine the aging results.

[0005] A combined communication power supply aging detection system includes an environment pressurization unit, an output detection unit, a process monitoring unit, and a parameter judgment module. The environment pressurization unit is used to detect the aging environment, obtain aging environment information, and compare the aging environment information with the set initial parameters to regulate the aging environment information; The output detection unit continuously detects the output parameters of the power supply during the aging process, and sends the integrated output parameters of the power supply to the parameter judgment module; The parameter judgment module analyzes the output stability and output coupling of the power supply according to the integrated output parameters to obtain the power supply stability aging result and the power supply coupling aging result; The process detection unit obtains the power stability aging result and the power coupling aging result through the parameter judgment module, and performs comprehensive analysis to obtain the final judgment result of the power aging.

[0006] As a preferred embodiment of the present invention, the environmental pressurization unit controls the aging environment through a temperature control component and a humidity component, and the environmental pressurization unit obtains set aging environment information, and the aging environment information includes environmental temperature and environmental humidity; The environmental pressurization unit collects current aging environment information, which also includes ambient temperature and ambient humidity. The environmental pressurization unit compares the ambient temperature and ambient humidity in the current aging environment information with the ambient temperature and ambient humidity in the set aging environment information, and sends a heating signal or a cooling signal to the temperature control component according to the difference in ambient temperature, and sends a drying signal or a humidification signal to the humidity component according to the difference in ambient humidity.

[0007] As a preferred embodiment of the present invention, the control process of the temperature control component by the environmental pressurization unit is: The environmental pressurization unit compares the difference in ambient temperature with a set difference gear, and the set difference gear includes a control gear and a maintenance gear. When the difference in ambient temperature is greater than the control gear, a fast temperature control signal is generated. After obtaining the fast temperature control signal, the temperature control component operates at full power. When the difference in ambient temperature is less than the control gear but greater than the maintenance gear, a low-speed temperature control signal is generated. After obtaining the low-speed temperature control signal, the temperature control component operates at low power, wherein the specific low power is calculated by a formula, and the low power , where T is the ambient temperature difference, T0 is the temperature difference corresponding to the maintained gear, J is the set weight coefficient, and Pmax is the full power of the temperature control component.

[0008] As a preferred embodiment of the present invention, the process of the environmental pressurization unit controlling the humidity component is: The environmental pressurization unit records the difference in environmental humidity as RH, and compares the difference in environmental humidity with a set difference gear, the difference gear also includes a control gear and a maintenance gear, when the difference in environmental humidity is greater than the control gear, a high wind speed signal is generated, when the difference in environmental humidity is less than the control gear but greater than the maintenance gear, a low wind speed signal is generated, wherein the high wind speed signal and the low wind speed signal are preset fixed values; The environmental pressurization unit calculates the outlet humidity rh through the formula: , where q is the preset weight coefficient, F is the wind speed, and the value of F is the wind speed corresponding to the high wind speed signal or the low wind speed signal.

[0009] As a preferred embodiment of the present invention, the output detection unit performs load control on the unit with a set output load, changes the load demand for the power supply in stages, and records the load demand applied in different stages and the application time of the load demand to obtain a load demand curve; The power output parameters acquired by the output detection unit include voltage output and current output. When acquiring the voltage output parameters, the output detection unit synchronously records the acquisition time and creates a time axis. The voltage output is recorded in the form of a curve using the time axis to obtain a voltage output curve. When acquiring the current output, the output detection unit acquires the current output curve in the same manner.

[0010] As a preferred embodiment of the present invention, the parameter judgment module includes a stability detection unit and a coupling detection unit; The stability detection unit obtains a load demand curve, selects a load demand of a stage on the load demand curve, and obtains a time period corresponding to the selected load demand; The stability detection unit obtains the voltage output and current output corresponding to the time period on the voltage output curve and the current output curve according to the time period corresponding to the load demand, and calculates the standard deviation of the voltage output and the current output to obtain the voltage output fluctuation and the current output fluctuation; The stability detection unit selects load demand time periods of different loads multiple times, and calculates voltage output fluctuations and current output fluctuations in different time periods multiple times.

[0011] As a preferred implementation of the present invention, the coupling detection unit selects a time point at which the load demand changes in the load demand curve and records it as a load change point; The coupling detection unit obtains the voltage output through the corresponding position of the load change point on the voltage output curve, and obtains the point on the voltage output curve where the voltage output completes the follow-up change after the load change point, and records the point where the voltage output follows the change as the voltage following point. The coupling detection unit calculates the time difference between the load change point and the voltage following point to obtain the voltage change time; The coupling detection unit obtains the current change time in the same way.

[0012] As a preferred embodiment of the present invention, the process monitoring unit calculates the voltage output fluctuation and the current output fluctuation by a formula to obtain a stability characteristic value, compares the stability characteristic value with a set threshold value, and generates a stability abnormality signal or a stability qualified signal according to the comparison result; The process monitoring unit calculates the voltage change time and the current change time to obtain a coupling characteristic value, compares the coupling characteristic value with a set threshold value, and generates a coupling qualified signal or a coupling abnormal signal according to the comparison result.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, during the power supply aging detection process, the voltage and current outputs of the power supply are detected separately, and the detection results are combined with the load with multiple stages of changes for comprehensive analysis, so as to analyze the stability of the power supply output and the coupling between the power supply output and the load changes, thereby expanding the coverage of the detection items in the power supply aging detection process, and being able to more comprehensively detect the impact of power supply aging, thereby supplementing the safety hazards that cannot be reflected by conventional data during power supply aging detection, and improving the application effect of the power supply aging detection system.

[0014] 2. In the present invention, the aging environment is controlled in a step-by-step manner, so as to fully maintain the stability of the aging environment during the aging process, and to ensure that the actual performance of the aging environment is consistent with the set parameters to the greatest extent, so as to avoid the situation where the aging detection results are different from the actual situation due to the difference between the aging environment and the set environment. At the same time, the step-by-step environmental control scheme can automatically adjust the environmental control speed when the aging environment is close to the set environmental parameters, so as to avoid the phenomenon of frequent fluctuations in environmental parameters caused by repeated adjustment of environmental parameters due to excessive environmental adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0016] Figure 1 is a system block diagram of the present invention; Figure 2 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0017] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. 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.

[0018] Embodiment 1: See also Figure 1 - Figure 2 As shown, a combined communication power supply aging detection method comprises the following steps: Step 1: Test the aging environment; Step 2: Compare the detected aging environment with the set environmental parameters, and achieve staged control of the aging environment through comparison to accurately adjust the aging environment; Step 3: Collect the power supply output parameters and load, and integrate them into multiple curves according to the collected output parameters and load conditions; Step 4: Comprehensively analyze the output parameters of the power supply and the changes in the load to determine the output stability parameters and output coupling parameters of the power supply; Step 5: Judge the output stability and output coupling and obtain the judgment result.

[0019] Embodiment 2: See also Figure 1 - Figure 2 As shown, a combined communication power supply aging detection system includes an environment pressurization unit, an output detection unit, a process monitoring unit, and a parameter judgment module. The environment pressurization unit is used to detect the aging environment and obtain the aging environment information. The environment pressurization unit controls the aging environment through a temperature control component and a humidity component. The temperature control component is controlled by heating with an electric heating wire, and the gas inside the aging environment is used for internal circulation to diffuse the temperature, thereby changing the ambient temperature without affecting the ambient humidity. The humidity component is controlled by internal circulation of the gas inside the aging environment, and water vapor with the same temperature as the gas is added during the internal circulation to change the ambient humidity without affecting the ambient temperature. At the same time, the environment pressurization unit obtains the set aging environment information, and the aging environment information includes the ambient temperature and the ambient humidity. The environmental pressurization unit collects the current aging environment information, which also includes the ambient temperature and ambient humidity. The environmental pressurization unit compares the ambient temperature and ambient humidity in the current aging environment information with the ambient temperature and ambient humidity in the set aging environment information, and sends a heating signal or a cooling signal to the temperature control component according to the difference in ambient temperature, and sends a drying signal or a humidification signal to the humidity component according to the difference in ambient humidity; The control process of the environmental pressurization unit on the temperature control component is: The environmental pressurization unit compares the difference in ambient temperature with the set difference gear. The set difference gear includes the control gear and the maintenance gear. When the ambient temperature difference is greater than the control gear, a fast temperature control signal is generated. After obtaining the fast temperature control signal, the temperature control component operates at full power. When the ambient temperature difference is less than the control gear but greater than the maintenance gear, a low-speed temperature control signal is generated. After obtaining the low-speed temperature control signal, the temperature control component operates at low power. The specific low power is calculated by the formula. , where T is the ambient temperature difference, T0 is the temperature difference corresponding to the maintained gear, J is the set weight coefficient, Pmax is the full power of the temperature control component, and this method is used to control the heating and cooling power of the heating signal or the cooling signal; The process of controlling the humidity component by the environmental pressurization unit is as follows: The environmental pressurization unit records the difference in environmental humidity as RH, and compares the difference in environmental humidity with the set difference gear, which also includes a control gear and a maintenance gear. When the difference in environmental humidity is greater than the control gear, a high wind speed signal is generated. When the difference in environmental humidity is less than the control gear but greater than the maintenance gear, a low wind speed signal is generated, wherein the high wind speed signal and the low wind speed signal are preset fixed values. The environmental pressurization unit calculates the outlet humidity rh through the formula, , where q is the preset weight coefficient, F is the wind speed, and the value of F is the wind speed corresponding to the high wind speed signal or the low wind speed signal to control the humidity control amplitude of the drying signal or the humidification signal.

[0020] Embodiment three: See also Figure 1 - Figure 2 As shown, the output detection unit continuously detects the output parameters of the power supply during the aging process. The output detection unit controls the load of the unit with the set output load, changes the load demand of the power supply in stages, and records the load demand applied in different stages and the application time of the load demand, so as to obtain a load demand curve; The power output parameters acquired by the output detection unit include voltage output and current output. When acquiring the voltage output parameters, the output detection unit synchronously records the acquisition time and creates a time axis. The voltage output is recorded in the form of a curve using the time axis to obtain a voltage output curve. When acquiring the current output, the output detection unit acquires the current output curve in the same manner.

[0021] The parameter judgment module includes a stability detection unit and a coupling detection unit; The stability detection unit obtains a load demand curve, selects a load demand of a stage on the load demand curve, and obtains a time period corresponding to the selected load demand; The stability detection unit obtains the voltage output and current output corresponding to the time period on the voltage output curve and the current output curve according to the time period corresponding to the load demand, and calculates the standard deviation of the voltage output and the current output to obtain the voltage output fluctuation and the current output fluctuation; The stability detection unit selects load demand time periods of different loads multiple times, and calculates voltage output fluctuations and current output fluctuations in different time periods multiple times; The coupling detection unit selects a time point when the load demand changes in the load demand curve and records it as a load change point; The coupling detection unit obtains the voltage output through the corresponding position of the load change point on the voltage output curve, and obtains the point on the voltage output curve where the voltage output completes the follow-up change after the load change point, and records the point where the voltage output follows the change as the voltage following point. The coupling detection unit calculates the time difference between the load change point and the voltage following point to obtain the voltage change time; The coupling detection unit obtains the current change time in the same way; The coupling detection unit determines whether the voltage output has followed the change by calculating the ratio of the voltage output to the load demand to obtain the coupling ratio, and calculating the difference between the coupling ratio and the set threshold value. When the difference between the coupling ratio and the set threshold value is less than the set value, it is determined that the voltage has completed the following change. Similarly, the method for determining whether the current output is following is the same.

[0022] The process monitoring unit calculates the voltage output fluctuation and the current output fluctuation through a formula to obtain a stability characteristic value, compares the stability characteristic value with a set threshold, and generates a stability abnormality signal or a stability qualified signal according to the comparison result; The process monitoring unit calculates the voltage change time and the current change time to obtain a coupling characteristic value, compares the coupling characteristic value with a set threshold value, and generates a coupling qualified signal or a coupling abnormal signal according to the comparison result.

[0023] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A combined communication power supply aging detection method, characterized in that: The following steps are involved: Step 1: Aging environment detection; Step 2: Aging environment adjustment; Step 3: Load and output collection; Step 4: Comprehensive analysis of load and output; Step 5: Determine the aging results.

2. A combined communication power supply aging detection system, characterized in that: It includes an environment pressurization unit, an output detection unit, a process monitoring unit, and a parameter judgment module. The environment pressurization unit is used to detect the aging environment, obtain aging environment information, compare the aging environment information with the set initial parameters, and regulate the aging environment information; The output detection unit continuously detects the output parameters of the power supply during the aging process, and sends the integrated output parameters of the power supply to the parameter judgment module; The parameter judgment module analyzes the output stability and output coupling of the power supply according to the integrated output parameters to obtain the power supply stability aging result and the power supply coupling aging result; The process detection unit obtains the power stability aging result and the power coupling aging result through the parameter judgment module, and performs comprehensive analysis to obtain the final judgment result of the power aging.

3. A combined communication power supply aging detection system according to claim 2, characterized in that: The environmental pressurization unit controls the aging environment through the temperature control component and the humidity component, and at the same time the environmental pressurization unit obtains the set aging environment information, the aging environment information includes the environment temperature and the environment humidity; The environmental pressurization unit collects current aging environment information, which also includes ambient temperature and ambient humidity. The environmental pressurization unit compares the ambient temperature and ambient humidity in the current aging environment information with the ambient temperature and ambient humidity in the set aging environment information, and sends a heating signal or a cooling signal to the temperature control component according to the difference in ambient temperature, and sends a drying signal or a humidification signal to the humidity component according to the difference in ambient humidity.

4. A combined communication power supply aging detection system according to claim 3, characterized in that: The control process of the temperature control component by the environmental pressurization unit is as follows: The environmental pressurization unit compares the difference in ambient temperature with a set difference gear, and the set difference gear includes a control gear and a maintenance gear. When the difference in ambient temperature is greater than the control gear, a fast temperature control signal is generated. After obtaining the fast temperature control signal, the temperature control component operates at full power. When the difference in ambient temperature is less than the control gear but greater than the maintenance gear, a low-speed temperature control signal is generated. After obtaining the low-speed temperature control signal, the temperature control component operates at low power, wherein the specific low power is calculated by a formula, and the low power , where T is the ambient temperature difference, T0 is the temperature difference corresponding to the maintained gear, J is the set weight coefficient, and Pmax is the full power of the temperature control component.

5. The combined communication power supply aging detection system according to claim 3, characterized in that: The process of the environmental pressurization unit controlling the humidity component is as follows: The environmental pressurization unit records the difference in environmental humidity as RH, and compares the difference in environmental humidity with a set difference gear, the difference gear also includes a control gear and a maintenance gear, when the difference in environmental humidity is greater than the control gear, a high wind speed signal is generated, when the difference in environmental humidity is less than the control gear but greater than the maintenance gear, a low wind speed signal is generated, wherein the high wind speed signal and the low wind speed signal are preset fixed values; The environmental pressurization unit calculates the outlet humidity rh through the formula: , where q is the preset weight coefficient, F is the wind speed, and the value of F is the wind speed corresponding to the high wind speed signal or the low wind speed signal.

6. A combined communication power supply aging detection system according to claim 2, characterized in that: The output detection unit performs load control on the unit with a set output load, changes the load demand of the power supply in stages, and records the load demand applied in different stages and the application time of the load demand to obtain a load demand curve; The power output parameters acquired by the output detection unit include voltage output and current output. When acquiring the voltage output parameters, the output detection unit synchronously records the acquisition time and creates a time axis. The voltage output is recorded in the form of a curve using the time axis to obtain a voltage output curve. When acquiring the current output, the output detection unit acquires the current output curve in the same manner.

7. A combined communication power supply aging detection system according to claim 2, characterized in that: The parameter judgment module includes a stability detection unit and a coupling detection unit; The stability detection unit obtains a load demand curve, selects a load demand of a stage on the load demand curve, and obtains a time period corresponding to the selected load demand; The stability detection unit obtains the voltage output and current output corresponding to the time period on the voltage output curve and the current output curve according to the time period corresponding to the load demand, and calculates the standard deviation of the voltage output and the current output to obtain the voltage output fluctuation and the current output fluctuation; The stability detection unit selects load demand time periods of different loads multiple times, and calculates voltage output fluctuations and current output fluctuations in different time periods multiple times.

8. The combined communication power supply aging detection system according to claim 7, characterized in that: The coupling detection unit selects a time point at which the load demand changes in the load demand curve and records it as a load change point; The coupling detection unit obtains the voltage output through the corresponding position of the load change point on the voltage output curve, and obtains the point on the voltage output curve where the voltage output completes the follow-up change after the load change point, and records the point where the voltage output follows the change as the voltage following point. The coupling detection unit calculates the time difference between the load change point and the voltage following point to obtain the voltage change time; The coupling detection unit obtains the current change time in the same way.

9. A combined communication power supply aging detection system according to claim 8, characterized in that: The process monitoring unit calculates the voltage output fluctuation and the current output fluctuation by a formula to obtain a stability characteristic value, compares the stability characteristic value with a set threshold value, and generates a stability abnormality signal or a stability qualified signal according to the comparison result; The process monitoring unit calculates the voltage change time and the current change time to obtain a coupling characteristic value, compares the coupling characteristic value with a set threshold value, and generates a coupling qualified signal or a coupling abnormal signal according to the comparison result.

Images