Intermediate relay inspection system
The intermediate relay testing system categorizes intermediate relays for testing under various environmental conditions, acquires electrical data, and analyzes sensitivity. This solves the environmental adaptability problem of existing testing methods, improves testing efficiency and accuracy, and ensures equipment safety and product quality.
Patent Information
- Application Number
- CN202511775477.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-02-13
AI Technical Summary
Existing quality testing methods for intermediate relays cannot be performed in all environments, resulting in the inability to detect faults in unsuitable operating environments. The methods are complex, cumbersome, inefficient, and prone to errors, affecting the safe operation of equipment and product quality.
An intermediate relay testing system is provided. The intermediate relay is divided into data conditions under various testing environments by a partitioning module. The detection voltage is input by a signal generation module to obtain electrical testing data and analyze the electrical compliance coefficient and sensitivity. The comprehensive testing quality coefficient is calculated and stored in a data storage library.
It effectively avoids intermediate relay failures caused by environmental issues, improves the efficiency and accuracy of testing, simplifies the operation process, reduces waste of manpower and resources, and ensures safe operation of equipment and product quality.
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Figure CN121522440A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of relay inspection, and relates to an intermediate relay inspection system. BACKGROUND
[0002] With the development of industrial automation and electrical control technology, intermediate relays have been widely used in various devices and systems. In order to ensure the normal operation and safety of the devices, it is particularly important to detect the quality of the intermediate relays and ensure their stable performance. Therefore, the quality detection method of the intermediate relays is of great significance.
[0003] At present, there are mainly two quality detection methods for intermediate relays. One is to use a relay protection verifier and a multimeter to adjust and measure multiple times. The other is to use a power supply device, a sliding rheostat and a multimeter to adjust and measure multiple times.
[0004] However, the existing quality detection methods for intermediate relays do not detect the intermediate relays in various environments, so that the unsuitable use environment of the intermediate relays cannot be obtained, and the failure of the intermediate relays due to environmental problems may occur, so that the safe operation of the equipment cannot be ensured.
[0005] The existing quality detection methods for intermediate relays have problems such as complex wiring, tedious operation, unsafe power consumption and the like in the verification process, so that errors may occur in the operation process, thereby affecting the quality inspection results of the intermediate relays, and the overall quality of the products cannot be improved.
[0006] The existing quality detection methods for intermediate relays need to be tested multiple times to obtain the test results of the intermediate relays, so that the intermediate relays cannot be accurately detected at one time, the efficiency of the quality inspection of the intermediate relays is reduced, a large amount of manpower and material resources are wasted to a certain extent, and certain economic losses are caused. SUMMARY
[0007] In view of this, in order to solve the problems in the background art, an intermediate relay inspection system is provided.
[0008] The purpose of the application can be achieved by the following technical scheme: the application provides an intermediate relay inspection system, which comprises an intermediate relay division module, which is used to divide each intermediate relay to be inspected into each intermediate relay under each data condition of each inspection environment according to a predefined principle.
[0009] A signal generation module is used to input each detection voltage to each intermediate relay under each data condition of each inspection environment by using a voltage signal generator.
[0010] The electrical inspection data acquisition module is configured to acquire electrical inspection data corresponding to the detection voltage of the intermediate relay under each data condition of each inspection environment.
[0011] The electrical inspection data analysis module is configured to analyze the electrical compliance coefficient of the intermediate relay under each data condition of each inspection environment.
[0012] The sensitivity detection module is configured to acquire the end time point and the start time point of the action corresponding to the detection voltage of the intermediate relay under each data condition of each inspection environment.
[0013] The sensitivity analysis module is configured to analyze the sensitivity of the intermediate relay under each data condition of each inspection environment.
[0014] The intermediate relay quality analysis module is configured to analyze the comprehensive inspection quality coefficient of the intermediate relay under each data condition of each inspection environment, and further obtain the intermediate relay under each unsuitable data condition of each inspection environment and display the intermediate relay.
[0015] The data repository is configured to store the number of each data condition of each inspection environment, store the permissible interval duration threshold of the action corresponding to the detection voltage, and store the comprehensive inspection quality coefficient threshold.
[0016] Preferably, the specific content of the predefined principle of dividing the intermediate relay to be inspected into the intermediate relay under each data condition of each inspection environment is that the number of each data condition of each inspection environment is extracted from the data repository, and the number of each data condition of each inspection environment is added to obtain the sum of the number of data conditions of each inspection environment.
[0017] The total number of intermediate relays to be inspected is divided by the sum of the number of data conditions of each inspection environment, and the quotient is used as a preset division number, and then the intermediate relays to be inspected are grouped according to the preset division number to obtain the intermediate relay under each data condition of each inspection environment, and the intermediate relay under each data condition of each inspection environment is recorded.
[0018] If there is a remainder, the remaining intermediate relays to be inspected are recorded as the intermediate relay corresponding to the conventional environment, wherein the conventional environment is defined as the environment corresponding to the suitable temperature, suitable humidity, suitable dust concentration and suitable vibration.
[0019] Preferably, the electrical inspection data corresponding to the detection voltage of the intermediate relay under each data condition of each inspection environment includes the return voltage, the resistance of each contact point, and the current and power of the coil.
[0020] Preferably, the specific analysis method of the electrical compliance coefficient of the test intermediate relay under each data condition of each test environment is: extracting the current and power of the coil corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment, and analyzing the compliance index of the coil corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment. wherein i=1, 2,..., a, i is the number of each test environment, j=1, 2,..., b, j is the number of each data condition, f=1, 2,..., c, f is the number of each test intermediate relay, c is the number of test intermediate relays, g=1, 2,..., d, g is the number of each detection voltage, and d is the number of detection voltages.
[0021] Extracting the return voltage corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment and the resistance of each contact point.
[0022] Analyzing the electrical compliance coefficient of the test intermediate relay under each data condition of each test environment wherein V ijfg and R ijfgp are the return voltage corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment and the resistance of the pth contact point, respectively, V' ijfg and R' ijfgp are the standard return voltage corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment and the standard resistance of the pth contact point, respectively, ΔV and ΔR are the permissible difference between the set return voltage and the standard return voltage and the permissible difference between the resistance and the standard resistance, respectively, p=1, 2,..., q, p is the number of each contact point, q is the number of contact points, and e is the natural constant.
[0023] Preferably, the specific acquisition method of the standard return voltage corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment and the standard resistance of each contact point is: by inputting each detection voltage, the test intermediate relay corresponding to the conventional environment is subjected to multiple tests of return voltage and resistance of each contact point according to the preset test principle, the return voltage and resistance of each contact point of each test of the test intermediate relay corresponding to the conventional environment are obtained, and the average return voltage and average resistance of each contact point of the test intermediate relay corresponding to the conventional environment are further subjected to mean value processing, respectively, and are recorded as the standard return voltage corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment and the standard resistance of each contact point.
[0024] Preferably, the specific analysis method of the compliance index of the coil corresponding to the detection voltage of the test intermediate relay under each data condition of each test environment is: extracting the current and power of the coil corresponding to the detection voltage of the test intermediate relay under each data condition of each test environment, and analyzing the compliance index of the coil corresponding to the detection voltage of the test intermediate relay under each data condition of each test environment wherein I ijfg , η ijfg are the current and power of the coil corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment, I' ijfg , η' ijfg are the standard current and standard power of the coil corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment, and ΔI and Δη are the permissible difference values of the set current and the standard current and the permissible difference values of the set power and the standard power, respectively.
[0025] Preferably, the specific analysis method of the sensitivity of the test intermediate relay under each data condition of each test environment is: extracting the end time point and the start time point of the action corresponding to the detection voltage of the test intermediate relay under each data condition of each test environment, and performing a difference operation to obtain the difference value of the end time point and the start time point of the action corresponding to the detection voltage of the test intermediate relay under each data condition of each test environment, which is recorded as the interval duration of the action corresponding to the detection voltage of the test intermediate relay under each data condition of each test environment.
[0026] analyzing the sensitivity of the test intermediate relay under each data condition of each test environment wherein T jfg is the interval duration of the action corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment, and T0 is the permissible interval duration threshold of the action corresponding to the detection voltage extracted from the data repository.
[0027] Preferably, the specific analysis method of the comprehensive test quality coefficient of the test intermediate relay under each data condition of each test environment is: extracting the electrical compliance coefficient and the sensitivity of the test intermediate relay under each data condition of each test environment, and analyzing the comprehensive test quality coefficient of the test intermediate relay under each data condition of each test environment wherein β1 and β2 are weight factors corresponding to the electrical compliance coefficient and the sensitivity, respectively, and β1 + β2 = 1.
[0028] Preferably, the specific acquisition mode of the intermediate relay under each unsuitable data condition of each test environment is: comparing the comprehensive test quality coefficient of the test intermediate relay under each data condition of each test environment with the comprehensive test quality coefficient threshold extracted from the data repository respectively, screening the test intermediate relay under each data condition of each test environment with the comprehensive test quality coefficient less than the comprehensive test quality coefficient threshold, recording it as the intermediate relay under each unsuitable data condition of each test environment, and displaying it.
[0029] Compared with the prior art, the beneficial effects of the present application are as follows: 1. The present application helps to obtain the unsuitable use environment of the intermediate relay by dividing each intermediate relay to be tested into each test intermediate relay under each data condition of each test environment according to the predefined principle, effectively avoiding the failure of the intermediate relay due to environmental problems, and ensuring the safe operation of the equipment.
[0030] 2. The present application obtains the electrical test data corresponding to each detection voltage of each test intermediate relay under each data condition of each test environment, analyzes the electrical compliance coefficient of each test intermediate relay under each data condition of each test environment, is simple and standard in operation, and improves the efficiency and accuracy of the test, avoids errors in the operation process, helps to improve the overall quality of the product, and ensures the safety in the operation process.
[0031] 3. The present application obtains the end time point and the start time point of the action corresponding to each detection voltage of each test intermediate relay under each data condition of each test environment, analyzes the sensitivity of each test intermediate relay under each data condition of each test environment, helps to accurately detect the intermediate relay once, improves the efficiency of the intermediate relay quality test, and to a certain extent, reduces the waste of manpower and material resources, and avoids economic losses. BRIEF DESCRIPTION OF DRAWINGS
[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0033] Figure 1 It is a schematic diagram of the system module of the present application.
[0034] Figure 2 It is an intermediate relay test device of the present application. DETAILED DESCRIPTION
[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of the present application.
[0036] Please refer to Figure 1 As shown in the figure, the present application provides an intermediate relay inspection system, and the specific module distribution is as follows: an intermediate relay division module, a signal generation module, an electrical inspection data acquisition module, an electrical inspection data analysis module, a sensitivity detection module, a sensitivity analysis module, an intermediate relay quality analysis module and a data repository. The connection mode between the modules is as follows: the intermediate relay division module is connected with the signal generation module, the signal generation module is connected with the electrical inspection data acquisition module and the sensitivity detection module respectively, the electrical inspection data acquisition module is connected with the electrical inspection data analysis module, the sensitivity detection module is connected with the sensitivity analysis module, the intermediate relay quality analysis module is connected with the electrical inspection data analysis module and the sensitivity analysis module respectively, and the data repository is connected with the electrical inspection data analysis module and the sensitivity analysis module respectively.
[0037] The intermediate relay division module is used for dividing each intermediate relay to be inspected into each inspection intermediate relay under each data condition of each inspection environment according to a predefined principle.
[0038] It should be further pointed out that the each inspection environment includes a temperature environment, a humidity environment, a dust environment and a vibration environment.
[0039] The each data condition includes each temperature data, each humidity data, each dust concentration data and each vibration corresponding frequency and amplitude data.
[0040] As a preferred example, the specific content of the predefined principle of dividing each intermediate relay to be inspected into each inspection intermediate relay under each data condition of each inspection environment is as follows: the number of each data condition of each inspection environment is extracted from the data repository, and the sum of the number of the data conditions of the inspection environment is obtained by accumulation.
[0041] The total number of each intermediate relay to be inspected is divided by the sum of the number of the data conditions of the inspection environment, and the quotient is used as a preset division number. Then, the each intermediate relay to be inspected is grouped according to the preset division number to obtain the inspection intermediate relay under each data condition of each inspection environment, and is recorded as the each inspection intermediate relay under each data condition of each inspection environment.
[0042] If there is a remainder, the remaining intermediate relays to be tested are recorded as the test intermediate relays corresponding to the conventional environment, wherein the conventional environment is defined as an environment corresponding to appropriate temperature, appropriate humidity, appropriate dust concentration and appropriate vibration.
[0043] The application helps to obtain the inappropriate use environment of the intermediate relay by dividing the intermediate relays to be tested into the test intermediate relays under the data conditions of the test environment according to the predefined principle, effectively avoids the failure of the intermediate relay caused by the environmental problem, and ensures the safe operation of the equipment.
[0044] The signal generation module is configured to input the detection voltage of the test intermediate relay under the data condition of the test environment by using the voltage signal generator.
[0045] The electrical test data acquisition module is configured to acquire the electrical test data corresponding to the detection voltage of the test intermediate relay under the data condition of the test environment.
[0046] As a preferred example, the electrical test data corresponding to the detection voltage of the test intermediate relay under the data condition of the test environment includes the return voltage, the resistance of each contact point, and the current and power of the coil.
[0047] It needs to be further explained that the specific acquisition method of the return voltage, the resistance of each contact point, and the current and power of the coil of the test intermediate relay under the data condition of the test environment is that the return voltage, the resistance of each contact point, and the current and power of the coil of the test intermediate relay under the data condition of the test environment are directly obtained by using the intermediate relay testing device to detect the test intermediate relay under the data condition of the test environment.
[0048] The intermediate relay testing device includes an adjustable voltage device with digital display and three high-precision digital resistance tables. The adjustable voltage device can display the return voltage, the current and the power in real time, and the high-precision digital resistance tables can display the resistance of each contact point in real time, as shown in FIG. Figure 2 .
[0049] The electrical test data analysis module is configured to analyze the electrical compliance coefficient of the test intermediate relay under the data condition of the test environment.
[0050] As a preferred example, the specific analysis method of the electrical compliance coefficient of the test intermediate relay under each data condition of each test environment is: extracting the current and power of the coil corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment, and analyzing the compliance index of the coil corresponding to each detection voltage of the test intermediate relay under each data condition of each test environment Wherein i=1, 2,..., a, i is the number of each test environment, j=1, 2,..., b, j is the number of each data condition, f=1, 2,..., c, f is the number of each test intermediate relay, c is the number of test intermediate relays, g=1, 2,..., d, g is the number of each detection voltage, and d is the number of detection voltages.
[0051] Extracting the return voltage corresponding to each detection voltage of each test intermediate relay under each data condition of each test environment and the resistance of each contact point.
[0052] Analyzing the electrical compliance coefficient of the test intermediate relay under each data condition of each test environment Wherein V ijfg , R ijfgp are the return voltage corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment and the resistance of the pth contact point, respectively, V' ijfg , R' ijfgp are the standard return voltage corresponding to the gth detection voltage of the fth test intermediate relay under the jth data condition of the ith test environment and the standard resistance of the pth contact point, respectively, ΔV and ΔR are the permissible difference between the set return voltage and the standard return voltage and the permissible difference between the resistance and the standard resistance, respectively, p=1, 2,..., q, p is the number of each contact point, q is the number of contact points, and e is the natural constant.
[0053] As a preferred example, the specific acquisition method of the standard return voltage corresponding to each detection voltage of each test intermediate relay under each data condition of each test environment and the standard resistance of each contact point is: by inputting each detection voltage, the conventional environment corresponding to each test intermediate relay is subjected to multiple tests of return voltage and resistance of each contact point according to the preset test principle, the return voltage and resistance of each contact point of each test of the conventional environment corresponding to each test intermediate relay are obtained, and further average processing is performed on them to obtain the average return voltage corresponding to each detection voltage of the conventional environment corresponding to each test intermediate relay and the average resistance of each contact point, which is recorded as the standard return voltage corresponding to each detection voltage of each test intermediate relay under each data condition of each test environment and the standard resistance of each contact point.
[0054] It needs to be further explained that the specific content of the preset inspection principle is that the detection voltage corresponding to each test relay in the conventional environment is obtained, the return voltage corresponding to the detection voltage of each test relay in the conventional environment and the resistance of each contact point are obtained, and further repeated inspection is performed several times to obtain the return voltage of each test corresponding to the detection voltage of each test relay in the conventional environment and the resistance of each contact point. Similarly, the return voltage of each test corresponding to each detection voltage of each test relay in the conventional environment and the resistance of each contact point can be obtained.
[0055] It needs to be further explained that the standard return voltage corresponding to each detection voltage of each test relay under each data condition of each test environment is the same value, and the standard resistance of each contact point corresponding to each detection voltage of each test relay under each data condition of each test environment is the same value.
[0056] As a preferred example, the specific analysis method of the compliance index of the coil corresponding to each detection voltage of each test relay under each data condition of each test environment is to extract the current and power of the coil corresponding to each detection voltage of each test relay under each data condition of each test environment, and analyze the compliance index of the coil corresponding to each detection voltage of each test relay under each data condition of each test environment Where Ii jfg , ηi jfg are the current and power of the coil corresponding to the gth detection voltage of the fth test relay under the jth data condition of the ith test environment, I' ijfg , η' ijfg are the standard current and standard power of the coil corresponding to the gth detection voltage of the fth test relay under the jth data condition of the ith test environment, ΔI and Δη are the permissible difference values of the current and the standard current and the permissible difference values of the power and the standard power, respectively.
[0057] It needs to be further explained that the specific acquisition method of the standard current and standard power of the coil corresponding to each detection voltage of each test relay under each data condition of each test environment is the same as the acquisition method of the standard return voltage and the standard resistance of each contact point corresponding to each detection voltage of each test relay under each data condition of each test environment.
[0058] It needs to be further explained that the standard current of the coil corresponding to each detection voltage of each test relay under each data condition of each test environment is the same value.
[0059] The standard power of the coil corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment is the same value.
[0060] The application obtains electrical test data corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment, and analyzes the electrical compliance coefficient of the intermediate relay in each test under each data condition of each test environment, which is simple and standard, improves the efficiency and accuracy of the test, avoids errors in the operation process, helps to improve the overall quality of the product, and ensures the safety in the operation process.
[0061] The sensitivity detection module is used to obtain the end time point and the start time point of the action corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment.
[0062] It should be further pointed out that the specific acquisition method of the end time point and the start time point of the action corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment is to record the end time point and the start time point of the action corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment by using a time timer.
[0063] The sensitivity analysis module is used to analyze the sensitivity of the intermediate relay in each test under each data condition of each test environment.
[0064] As a preferred example, the specific analysis method of the sensitivity of the intermediate relay in each test under each data condition of each test environment is to extract the end time point and the start time point of the action corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment, and to obtain the difference between the end time point and the start time point of the action corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment by difference, which is recorded as the interval duration of the action corresponding to the detection voltage of the intermediate relay in each test under each data condition of each test environment.
[0065] The sensitivity of the intermediate relay in each test under each data condition of each test environment is analyzed Wherein Ti jfg is the interval duration of the action corresponding to the detection voltage of the fth intermediate relay in the jth data condition under the ith test environment, and T0 is the permitted interval duration threshold of the detection voltage corresponding action extracted from the data repository.
[0066] The intermediate relay quality analysis module is used to analyze the comprehensive test quality coefficient of the intermediate relay in each test under each data condition of each test environment, and to obtain the intermediate relay under each unsuitable data condition of each test environment and display it.
[0067] As a preferred example, the specific analysis method of the comprehensive test quality coefficient of the test intermediate relay under each data condition of each test environment is as follows: the electrical compliance coefficient and the sensitivity of each test intermediate relay under each data condition of each test environment are extracted, and the comprehensive test quality coefficient of the test intermediate relay under each data condition of each test environment is analyzed. Wherein β1 and β2 are weight factors corresponding to the electrical compliance coefficient and the sensitivity, and β1 + β2 = 1.
[0068] As a specific feasible example, the value of β1 can be set to 0.7, and the value of β2 can be set to 0.3.
[0069] As a preferred example, the specific acquisition method of the intermediate relay under each unsuitable data condition of each test environment is as follows: the comprehensive test quality coefficient of the test intermediate relay under each data condition of each test environment is compared with the comprehensive test quality coefficient threshold value extracted from the data repository, respectively, the test intermediate relay under each data condition of each test environment whose comprehensive test quality coefficient is less than the comprehensive test quality coefficient threshold value is screened out, which is recorded as the intermediate relay under each unsuitable data condition of each test environment, and is displayed.
[0070] The present application helps to accurately detect the intermediate relay once by acquiring the end time point and the start time point of the action corresponding to each detection voltage of each test intermediate relay under each data condition of each test environment, analyzing the sensitivity of each test intermediate relay under each data condition of each test environment, improving the efficiency of intermediate relay quality test, and to a certain extent, reducing the waste of manpower and material resources, avoiding economic loss.
[0071] The above content is only an example and description of the concept of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as the modifications or supplements do not deviate from the concept of the present application or exceed the scope defined by the present application, and should belong to the protection scope of the present application.
Claims
1. An intermediate relay testing system, characterized in that: include: The intermediate relay division module divides each intermediate relay to be inspected into each intermediate relay under each data condition of each inspection environment according to predefined principles. The signal generation module uses a voltage signal generator to input the detection voltage to each intermediate relay under each data condition of each inspection environment; The electrical inspection data acquisition module acquires electrical inspection data corresponding to each detection voltage of each intermediate relay under each data condition of each inspection environment. The electrical inspection data parsing module is used to analyze the electrical compliance coefficients of each intermediate relay under various data conditions in each inspection environment. The sensitivity detection module acquires the end and start times of the action corresponding to each detection voltage of each intermediate relay under each data condition in each testing environment. The sensitivity analysis module is used to analyze the sensitivity of each intermediate relay in various testing environments under various data conditions. The intermediate relay quality analysis module analyzes the comprehensive inspection quality coefficient of the intermediate relays under various data conditions in each inspection environment, analyzes the intermediate relays under various unsuitable data conditions in each inspection environment, and displays the results. The data repository stores the quantity of each data condition for each inspection environment, the permissible interval threshold for the action corresponding to the detection voltage, and the threshold for the comprehensive inspection quality coefficient.
2. The intermediate relay testing system according to claim 1, characterized in that: The specific content of the predefined principle for classifying each intermediate relay to be inspected into intermediate relays under each data condition of each inspection environment is as follows: Extract the number of each data condition belonging to each testing environment from the data reserve, and sum them up to obtain the total number of data conditions belonging to each testing environment; Divide the total number of intermediate relays to be inspected by the sum of the number of data conditions of the inspection environment, and use the quotient as the preset division number. Then, group the intermediate relays to be inspected according to the preset division number to obtain the intermediate relays under each data condition of each inspection environment, and record them as the intermediate relays under each data condition of each inspection environment. If there is a remainder, the remaining intermediate relays to be tested are recorded as the intermediate relays to be tested in the normal environment. The normal environment is defined as the environment corresponding to suitable temperature, suitable humidity, suitable dust concentration and suitable vibration.
3. The intermediate relay testing system according to claim 2, characterized in that: The electrical test data corresponding to each detection voltage of each intermediate relay under each test environment and each data condition includes return voltage, resistance of each contact point, and current and power of the coil.
4. The intermediate relay testing system according to claim 3, characterized in that: The specific analysis method for the electrical compliance coefficient of each intermediate relay under each data condition in each testing environment is as follows: Extract the coil current and power corresponding to each detection voltage of each intermediate relay under each data condition in each testing environment, and analyze the compliance index of the coil corresponding to each detection voltage of each intermediate relay under each data condition in each testing environment. Where i = 1, 2, ..., a, i is the number of each test environment, j = 1, 2, ..., b, j is the number of each data condition, f = 1, 2, ..., c, f is the number of each test intermediate relay, c is the number of test intermediate relays, g = 1, 2, ..., d, g is the number of each detection voltage, d is the number of detection voltages; Extract the return voltage corresponding to each detection voltage of each intermediate relay and the resistance of each contact point under each data condition of each inspection environment; Analyze the electrical compliance coefficients of each intermediate relay under various data conditions in each testing environment. Where V ijfg R ijfgp These are the return voltage corresponding to the g-th detection voltage of the f-th intermediate relay under the j-th data condition of the i-th inspection environment, and the resistance of the p-th contact point, V′. ijfg 、R′ ijfgp Let be the standard return voltage corresponding to the g-th detection voltage of the f-th intermediate relay under the j-th data condition of the i-th test environment, and the standard resistance of the p-th contact point, respectively. ΔV and ΔR are the permissible difference between the set return voltage and the standard return voltage, and the permissible difference between the resistance and the standard resistance, respectively. p = 1, 2, ..., q, where p is the number of each contact point, q is the number of contact points, and e is a natural constant.
5. The intermediate relay testing system according to claim 4, characterized in that: The specific methods for obtaining the standard return voltage corresponding to each detection voltage of each intermediate relay and the standard resistance of each contact point under each data condition of each inspection environment are as follows: By inputting each detection voltage, the return voltage and resistance of each contact point of each intermediate relay under normal environment are tested multiple times according to the preset test principle. The return voltage and resistance of each contact point of each intermediate relay under normal environment are obtained for each detection voltage of each intermediate relay under normal environment. The average return voltage and average resistance of each contact point of each intermediate relay under normal environment are then calculated. These are recorded as the standard return voltage and standard resistance of each contact point of each intermediate relay under each data condition of each test environment.
6. The intermediate relay testing system according to claim 4, characterized in that: The specific analysis method for the coincidence index of the coil corresponding to each detection voltage of each intermediate relay under each data condition of each inspection environment is as follows: Extract the coil current and power corresponding to each detection voltage of each intermediate relay under each data condition in each testing environment, and analyze the compliance index of the coil corresponding to each detection voltage of each intermediate relay under each data condition in each testing environment. Where I ijfg η ijfg Let I′ represent the current and power of the coil corresponding to the g-th detection voltage of the f-th intermediate relay under the j-th data condition of the i-th test environment. ijfg η′ ijfg Let ΔI and Δη be the standard current and standard power of the coil corresponding to the g-th detection voltage of the f-th intermediate relay under the j-th data condition of the i-th test environment, respectively. ΔI and Δη are the permissible difference between the set current and the standard current and the permissible difference between the power and the standard power, respectively.
7. The intermediate relay testing system according to claim 4, characterized in that: The specific analysis method for the sensitivity of each intermediate relay under each data condition in each testing environment is as follows: Extract the end time and start time of each detection voltage corresponding to the action of each intermediate relay under each data condition of each inspection environment, and subtract them to obtain the difference between the end time and start time of each detection voltage corresponding to the action of each intermediate relay under each data condition of each inspection environment. Record this as the interval duration of each detection voltage corresponding to the action of each intermediate relay under each data condition of each inspection environment. Analyze the sensitivity of each intermediate relay in each test under various data conditions within each test environment. Where T ijfg T0 represents the interval duration of the action corresponding to the g-th detection voltage of the f-th intermediate relay under the j-th data condition of the i-th inspection environment, and T0 is the permissible interval duration threshold for the action corresponding to the detection voltage extracted from the data reserve.
8. The intermediate relay testing system according to claim 6, characterized in that: The specific analysis method for the comprehensive inspection quality coefficient of the intermediate relays under each data condition in each inspection environment is as follows: Extract the electrical compliance coefficient and sensitivity of each intermediate relay under various data conditions in each inspection environment, and analyze the comprehensive inspection quality coefficient of the intermediate relays under various data conditions in each inspection environment. Where β1 and β2 are the weighting factors corresponding to the set electrical compliance coefficient and sensitivity, and β1+β2=1.
9. The intermediate relay testing system according to claim 7, characterized in that: The specific method for obtaining the intermediate relays under each unsuitable data condition in each testing environment is as follows: The comprehensive inspection quality coefficient of the intermediate relays under each data condition of each inspection environment is compared with the comprehensive inspection quality coefficient threshold extracted from the data reserve. The intermediate relays under each data condition of each inspection environment whose comprehensive inspection quality coefficient is less than the comprehensive inspection quality coefficient threshold are selected and recorded as intermediate relays under each unsuitable data condition of each inspection environment, and then displayed.