A control method, device and fixture for high voltage test fixture
By implementing position verification and interlocking control mechanisms on the high-voltage test device, alternating high-voltage testing of two sets of power adapters is solved, and the problem of long equipment adjustment and waiting time in the prior art is improved, and testing efficiency and safety are improved.
Patent Information
- Application Number
- CN202410840886.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2044-06-27
AI Technical Summary
The existing high-voltage testing device needs to be disassembled and reinstalled after the test is completed, resulting in long equipment adjustment and waiting time, resulting in waste of resources.
Through position verification and interlock control mechanisms, alternating high-voltage testing of two sets of power adapters is realized, reducing equipment adjustment and waiting time.
Improves the efficiency of high-voltage testing, avoids waste of resources, and minimizes the risk of high-voltage impact on operators when disassembling the power adapter, ensuring the safety of the test process.
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Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of production test equipment, and in particular to a control method, device and fixture for a high-voltage test fixture. Background Art
[0002] High voltage testing usually refers to applying a voltage higher than the normal working voltage to the power system, electrical equipment or insulating materials to test their insulation performance and tolerance. This test helps to ensure that the equipment can withstand the voltage shocks and overvoltage phenomena that may be encountered in actual use, thereby ensuring the safe operation of the system. For the high voltage test of the power adapter, it is to verify whether there is a grounding or insulation breakdown problem between the live parts and the casing of the power adapter, and the primary and secondary circuits under the application of a high voltage several times the rated working voltage. This test helps to ensure that the power adapter can safely withstand the voltage shocks and overvoltage phenomena that may be encountered in actual use. During the test, the power adapters are connected to the plugs connected to the withstand voltage tester one by one, and when the instrument displays a pass or fail, the passed products will be sent to the next process, and the failed products will be recycled.
[0003] The current device used for high-voltage testing can only test a group of power adapters. After the test is completed, it needs to be disassembled and reassembled before the next test can be carried out. The equipment adjustment and waiting time are long, resulting in a waste of resources. For example, a fully automatic power adapter high-voltage test machine with patent number CN108919014A includes a conveyor belt and a test fixture set on the conveyor belt, and a positioning fixture for positioning the power adapter. The test fixture includes a test cylinder fixed to one side of the conveyor belt, and a test plug assembly is fixed to the end of the test cylinder. The other side of the conveyor belt corresponding to the test plug has a longitudinal positioning cylinder, and the discharge end of the conveyor belt is provided with a slope. The discharge end of the conveyor belt has a lateral positioning cylinder longitudinally arranged to limit the lateral displacement of the power adapter. Although the above-mentioned high-voltage test machine can improve work efficiency, the equipment adjustment and waiting time are long, resulting in a waste of resources.
[0004] Therefore, the present invention provides a control method, device and fixture for a high-voltage test fixture. Summary of the invention
[0005] The present invention provides a control method, device and fixture for a high-voltage test fixture. By combining position verification and an interlocking control mechanism, two groups of power adapters are switched to perform high-voltage testing. This method can not only improve work efficiency, but also avoid waste of resources.
[0006] In one aspect, the present invention provides a control method for a high voltage test fixture, comprising the following steps:
[0007] Verify the position of the power adapter installed on the high-voltage test fixture; wherein the high-voltage test fixture is provided with two sets of clamps for clamping the power adapter;
[0008] When the verification is passed, the interlock control mechanism is used to control the interlock module of the high-voltage test fixture to perform high-voltage tests on the two sets of power adapters alternately;
[0009] Collect key parameters in the high-voltage test process in real time, and determine whether the key parameters deviate from the expected standards. If they deviate from the expected standards, respond based on the exception handling mechanism.
[0010] In one practicable manner, the steps of verifying the position of a power adapter installed on a high-voltage test fixture include:
[0011] The blocking signals detected by each photoelectric sensor are captured in real time and denoised to obtain positioning signals; wherein the photoelectric sensor is used to capture the blocking of the emitted light by the power adapter;
[0012] Extract key features that can characterize the installation status of each group of power adapters from the positioning signal;
[0013] Using pattern recognition algorithms to match key features to verify the installation location of the power adapter;
[0014] If an installation anomaly is detected, a warning will be issued via a digital signal or indicator light.
[0015] In an practicable manner, the steps of using an interlock control mechanism to control an interlock module of a high-voltage test fixture and alternately performing high-voltage tests on two groups of power adapters include:
[0016] When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters;
[0017] After the test of the first set of power adapters is completed and removed; determine whether the position verification of the second set of power adapters is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second set of power adapters; wherein,
[0018] The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture;
[0019] After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
[0020] In one practicable manner, the response steps based on the exception handling mechanism include:
[0021] The key parameters collected in real time during the high-voltage test are input into a stream processing framework; wherein the stream processing framework is integrated with an isolation forest model for scoring the data;
[0022] The anomaly score is calculated for each key parameter and the combination of different key parameters using the isolation forest model;
[0023] Set independent thresholds for the anomaly scores of each key parameter and parameter combination. When any anomaly score exceeds its corresponding threshold, an alarm mechanism is triggered.
[0024] In one practicable manner, after completing the high voltage test on each group of power adapters, the method further includes:
[0025] Sending a cut-off command to the high-voltage tester to cut off the high-voltage power supply to the power adapter of the current group;
[0026] When the cut-off command is issued, the discharge timer is started, and the discharge timer is preset with a countdown of the safety time;
[0027] When the timer is finished, a discharge completion message is generated and displayed.
[0028] In one practicable manner, after completing the high voltage test on each group of power adapters, the method further includes: during the high voltage test, changing the flashing mode of the LED light on the high voltage test fixture according to the change of the state of each group of power adapters.
[0029] In one practicable manner, the step of triggering the alarm mechanism includes: when any abnormal score exceeds its corresponding threshold, automatically triggering the power-off mechanism to immediately cut off all power supplies.
[0030] On the other hand, the present application also provides a control device for a high-voltage test fixture, including a verification module, a high-voltage test module and an abnormality handling module; wherein,
[0031] The verification module is used to verify the position of the power adapter installed on the high-voltage test fixture; wherein the high-voltage test fixture is provided with two sets of clamps for clamping the power adapter;
[0032] The high-voltage test module is used to control the interlock module of the high-voltage test fixture by using the interlock control mechanism after the verification is passed, and perform high-voltage tests on two sets of power adapters alternately;
[0033] The exception handling module is used to collect various key parameters in the high-voltage test process in real time, and to determine whether the key parameters deviate from the expected standards. When they deviate from the expected standards, a response is made based on the exception handling mechanism.
[0034] In an practicable manner, the high voltage test module is specifically used for:
[0035] When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters;
[0036] After the test of the first set of power adapters is completed and removed; determine whether the position verification of the second set of power adapters is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second set of power adapters; wherein,
[0037] The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture;
[0038] After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
[0039] On the other hand, a high-voltage test fixture is applicable to the control method of the above-mentioned high-voltage test fixture, comprising:
[0040] A high-voltage test fixture body, on which a power adapter and two sets of clamps for clamping the power adapter are installed, wherein there is at least one power adapter;
[0041] A timer is connected to the power adapter and performs discharge timing.
[0042] The beneficial effects that can be achieved by the present invention are: the present application can realize the high voltage test by switching between two groups of power adapters, thereby improving the test efficiency. The control method of the present application can not only be integrated into an automated high voltage test fixture, but also be friendly to high voltage test fixtures that require manual testing, and can minimize the risk of the operator being affected by high voltage when disassembling the power adapter, thereby ensuring the safety of the entire test process.
[0043] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.
[0044] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0046] Figure 1 This is a flow chart of a control method of a high-voltage test fixture in Example 1 of the present invention;
[0047] Figure 2 This is a flow chart of the steps of performing position verification on the power adapter in Embodiment 1 of the present invention;
[0048] Figure 3 This is a flowchart of the response steps based on the exception handling mechanism in Example 1 of the present invention. DETAILED DESCRIPTION
[0049] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0050] This embodiment 1 provides a control method for a high-voltage test fixture, comprising the following steps:
[0051] Verify the position of the power adapter installed on the high-voltage test fixture; wherein the high-voltage test fixture is provided with two sets of clamps for clamping the power adapter;
[0052] When the verification is passed, the interlock control mechanism is used to control the interlock module of the high-voltage test fixture to perform high-voltage tests on the two sets of power adapters alternately;
[0053] Collect key parameters in the high-voltage test process in real time, and determine whether the key parameters deviate from the expected standards. If they deviate from the expected standards, respond based on the exception handling mechanism.
[0054] Working principle of the above technical solution: see Figure 1 , the present application utilizes a photoelectric sensing device to detect the position of the installed power adapter to ensure that the power adapter is correctly installed. According to the detection results of the photoelectric sensor, combined with the interlocking control mechanism, the two groups of power adapters can be tested alternately. During the test, while one group of power adapters is being tested, the other group of power adapters can be removed and replaced with new ones. In other words, the interlocking logic only allows one set of high-voltage test circuits to be activated, ensuring that only one power adapter is tested at any time, and that the test circuit is safe when processing another adapter. During the test process, it will also be determined whether the various key parameters collected in real time deviate from the expected standards. When they deviate from the expected standards, a response is made based on the exception handling mechanism to ensure the safety of the test process.
[0055] Beneficial effects of the above technical solution: The present application can realize high-voltage testing by switching between two sets of power adapters, thereby improving the test efficiency. The control method of the present application can not only be integrated into an automated high-voltage test fixture, but is also friendly to high-voltage test fixtures that require manual testing, and can minimize the risk of operators being affected by high voltage when disassembling the power adapter, thereby ensuring the safety of the entire test process.
[0056] Based on Example 1, the step of verifying the position of the power adapter installed on the high-voltage test fixture includes:
[0057] The blocking signals detected by each photoelectric sensor are captured in real time and denoised to obtain positioning signals; wherein the photoelectric sensor is used to capture the blocking of the emitted light by the power adapter;
[0058] Extract key features that can characterize the installation status of each group of power adapters from the positioning signal;
[0059] A pattern recognition algorithm is used to match key features to verify the installation position of the power adapter; if an installation anomaly is detected, a warning will be issued in the form of a digital signal or indicator light.
[0060] Working principle of the above technical solution: see Figure 2 In order to ensure that each power adapter is correctly installed according to the prescribed standards, the present application captures the blocking signal in real time through the photoelectric sensor. The photoelectric sensor is installed on the high-voltage test fixture, and the power adapter blocks or reflects the emitted light, thereby locating the installation position of each power adapter. The specific detection principle is the prior art. The number and installation position of the photoelectric sensor can be adjusted according to the needs of different power adapters, which will not be described in detail here. Next, the blocking signal is denoised (filtered, amplified, etc.) to obtain a positioning signal. Denoising the signal can reduce noise and highlight effective signals. Then, the key features that can characterize the installation status of each group of power adapters are extracted from the positioning signal, such as duration, light intensity change, amplitude, etc. Next, a pattern recognition algorithm is used, such as a decision tree algorithm, a nearest neighbor algorithm, etc. According to the closeness of the pattern to be identified corresponding to the key feature to a known pattern, it is determined whether the installation position of the power adapter is correct. If an abnormal installation is detected, a warning will be issued in the form of a digital signal or an indicator light.
[0061] The beneficial effects of the above technical solution: This application can effectively verify the position of the power adapter, reduce human errors, and ensure the accuracy and safety of the test.
[0062] On the basis of Example 1, the interlocking control mechanism is used to control the interlocking module of the high-voltage test fixture, and the steps of alternately performing high-voltage tests on two groups of power adapters include:
[0063] When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters;
[0064] After the test of the first set of power adapters is completed and removed; determine whether the position verification of the second set of power adapters is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second set of power adapters; wherein,
[0065] The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture;
[0066] After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
[0067] The working principle of the above technical solution: the high-voltage test fixture includes an interlocking module, a first fixture, a second fixture, and a first photoelectric sensor device and a second photoelectric sensor device for detecting the position of the power adapter installed on the first fixture and the second fixture respectively. The first fixture and the second fixture both have a plurality of clamping components, and the number of adapters in the first group of power adapters and the second group of power adapters is the same as the number of clamping components. First, the first group of power adapters is installed on one of the first fixtures of the high-voltage test fixture for clamping the power adapter. After the installation is successful, the first photoelectric sensor device is triggered, which is used to confirm whether the installation position of this group of power adapters is correct. When the correct position is detected, the interlocking logic circuit is controlled, the high-voltage test circuit is activated, and the first group of power adapters is tested at high voltage; while the first group of power adapters is tested at high voltage, the second group of power adapters is placed on the second fixture. At this time, the second photoelectric sensor device will detect whether the installation position of the second group of power adapters is correct. After the test of the first group of power adapters is completed, the test is automatically stopped and the group of power adapters is waiting to be disassembled. When the first group of power adapters is disassembled, the first photoelectric sensor device will detect that the first fixture is empty. The interlock logic detects that the first fixture is empty and the second set of power adapters has been correctly installed. The interlock logic will allow the second set of power adapters to be tested for high voltage. The second set of power adapters will be tested for high voltage. At this time, the area used to install the first set of power adapters is safe and new power adapters can be installed. The above steps are repeated until all power adapters have completed the high voltage test.
[0068] Beneficial effects of the above technical solution: This application ensures that only one set of power adapters can be tested at a time, which enhances safety. It allows installation and test preparation of two sets of power adapters to be performed simultaneously, which reduces equipment idle time and improves efficiency.
[0069] Based on Example 1, the response steps based on the exception handling mechanism include:
[0070] The key parameters collected in real time during the high-voltage test are input into a stream processing framework; wherein the stream processing framework is integrated with an isolation forest model for scoring the data;
[0071] The anomaly score is calculated for each key parameter and the combination of different key parameters using the isolation forest model;
[0072] Set independent thresholds for the anomaly scores of each key parameter and parameter combination. When any anomaly score exceeds its corresponding threshold, an alarm mechanism is triggered.
[0073] Working principle of the above technical solution: see Figure 3 During the high-voltage test, key parameters such as voltage, current, temperature, insulation resistance, and leakage current are collected in real time. After the collection is completed, the collected real-time key parameters are preprocessed, including denoising, standardization, and outlier removal. Preprocessing can improve the accuracy of subsequent processing. Then, the preprocessed real-time key parameters are input into the stream processing framework, and the stream processing framework selects the most suitable one. The trained isolation forest model integrated in the stream processing framework is then used to calculate the anomaly score of each key parameter and the multi-parameter anomaly score of the combination of different key parameters in real time. The association analysis of the combination of different key parameters is performed, and the correlation between parameters is considered to identify the composite anomaly pattern. Independent thresholds are set for the anomaly scores of each key parameter and the combination of parameters, and the anomaly score of each parameter and the multi-parameter anomaly score obtained by comprehensive evaluation are compared with their corresponding independent thresholds. If the anomaly score of any key parameter or the combined anomaly score of multiple parameters exceeds its corresponding threshold, the alarm mechanism is triggered.
[0074] The beneficial effects of the above technical solution: The present application can accurately identify abnormal conditions during the high-voltage test of a power adapter, thereby improving the reliability and safety of the test.
[0075] On the basis of Example 1, after completing the high voltage test on each group of power adapters, the method further includes:
[0076] Sending a cut-off command to the high-voltage tester to cut off the high-voltage power supply to the power adapter of the current group;
[0077] When the cut-off command is issued, the discharge timer is started, and the discharge timer is preset with a countdown of the safety time;
[0078] When the timer is finished, a discharge completion message is generated and displayed.
[0079] The working principle of the above technical solution: For high-voltage tests that require manual operation, in order to ensure that the power adapter is fully discharged before the operator touches the power adapter. Therefore, after completing the high-voltage test on each group of power adapters, the present application will first send a cut-off command to the high-voltage tester to cut off the high-voltage power supply to the power adapter of the current group; at the same time as the power-off command is issued, a timer with a preset safety time will be started, and the countdown time of the timer is set according to the discharge characteristics of the power adapter. When the preset safety time is reached, it indicates that the power adapter has been fully discharged, and a discharge completion information is generated and displayed to inform the operator. After receiving the discharge completion signal, the operator can safely remove the power adapter.
[0080] Beneficial effects of the above technical solution: The present application ensures that the power adapter is fully discharged before the operator touches the power adapter, thereby improving the safety of operation.
[0081] On the basis of Example 1, after completing the high voltage test on each group of power adapters, the method further includes: during the high voltage test, changing the flashing mode of the LED light on the high voltage test fixture according to the change of the state of each group of power adapters.
[0082] The working principle and beneficial effects of the above technical solution: During the high-voltage test process, the present application monitors the changes in the status of each group of power adapters in real time. When the status of the power adapter changes, the flashing mode of the LED light on the high-voltage test fixture is changed. For example, the flashing or constant-on mode of the LED light can be used to indicate the states of testing, waiting, discharging, and safety. This helps the operator understand the current test status more intuitively, thereby reducing the risk of misoperation and ensuring product quality.
[0083] Based on Example 1, the step of triggering the alarm mechanism includes: when any abnormal score exceeds its corresponding threshold, the power-off mechanism is automatically triggered to immediately cut off all power supplies.
[0084] The working principle and beneficial effects of the above technical solution are as follows: when an abnormal situation occurs, the power supply is immediately cut off to prevent accidents. After the power supply is cut off, visual and auditory alarms can also be sounded to notify the operator to take corresponding measures.
[0085] This embodiment 2 provides a control device for a high-voltage test fixture, including a verification module, a high-voltage test module and an abnormality handling module; wherein,
[0086] The verification module is used to verify the position of the power adapter installed on the high-voltage test fixture; wherein the high-voltage test fixture is provided with two sets of clamps for clamping the power adapter;
[0087] The high-voltage test module is used to control the interlock module of the high-voltage test fixture by using the interlock control mechanism after the verification is passed, and perform high-voltage tests on two sets of power adapters alternately;
[0088] The exception handling module is used to collect various key parameters in the high-voltage test process in real time, and to determine whether the key parameters deviate from the expected standards. When they deviate from the expected standards, a response is made based on the exception handling mechanism.
[0089] The present application uses a photoelectric sensor device to detect the position of the installed power adapter to ensure that the power adapter is installed correctly. According to the detection results of the photoelectric sensor, combined with the interlocking control mechanism, the two groups of power adapters can be tested alternately. During the test, while one group of power adapters is being tested, the other group of power adapters can be removed and replaced with new ones. In other words, the interlocking logic only allows one set of high-voltage test circuits to be activated, ensuring that only one power adapter is tested at any time, and that the test circuit is safe when processing another adapter. During the test process, it will also be determined whether the various key parameters collected in real time deviate from the expected standards. When they deviate from the expected standards, a response is made based on the exception handling mechanism to ensure the safety of the test process.
[0090] Beneficial effects of the above technical solution: The present application can realize high-voltage testing by switching between two sets of power adapters, thereby improving the test efficiency. The control method of the present application can not only be integrated into an automated high-voltage test fixture, but is also friendly to high-voltage test fixtures that require manual testing, and can minimize the risk of operators being affected by high voltage when disassembling the power adapter, thereby ensuring the safety of the entire test process.
[0091] Based on Example 2, the high voltage test module is specifically used for:
[0092] When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters;
[0093] After the test of the first set of power adapters is completed and removed; determine whether the position verification of the second set of power adapters is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second set of power adapters; wherein,
[0094] The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture;
[0095] After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
[0096] The working principle of the above technical solution: the high-voltage test fixture includes an interlocking module, a first fixture, a second fixture, and a first photoelectric sensor device and a second photoelectric sensor device for detecting the position of the power adapter installed on the first fixture and the second fixture respectively. The first fixture and the second fixture both have a plurality of clamping components, and the number of adapters in the first group of power adapters and the second group of power adapters is the same as the number of clamping components. First, the first group of power adapters is installed on one of the first fixtures of the high-voltage test fixture for clamping the power adapter. After the installation is successful, the first photoelectric sensor device is triggered, which is used to confirm whether the installation position of this group of power adapters is correct. When the correct position is detected, the interlocking logic circuit is controlled, the high-voltage test circuit is activated, and the first group of power adapters is tested at high voltage; while the first group of power adapters is tested at high voltage, the second group of power adapters is placed on the second fixture. At this time, the second photoelectric sensor device will detect whether the installation position of the second group of power adapters is correct. After the test of the first group of power adapters is completed, the test is automatically stopped and the group of power adapters is waiting to be disassembled. When the first group of power adapters is disassembled, the first photoelectric sensor device will detect that the first fixture is empty. The interlock logic detects that the first fixture is empty and the second set of power adapters has been correctly installed. The interlock logic will allow the second set of power adapters to be tested for high voltage. The second set of power adapters will be tested for high voltage. At this time, the area used to install the first set of power adapters is safe and new power adapters can be installed. The above steps are repeated until all power adapters have completed the high voltage test.
[0097] Beneficial effects of the above technical solution: This application ensures that only one set of power adapters can be tested at a time, which enhances safety. It allows installation and test preparation of two sets of power adapters to be performed simultaneously, which reduces equipment idle time and improves efficiency.
[0098] This embodiment 3 provides another aspect, a high-voltage test fixture, applicable to the control method of the above-mentioned high-voltage test fixture, including:
[0099] A high-voltage test fixture body, on which a power adapter and two sets of clamps for clamping the power adapter are installed, wherein there is at least one power adapter;
[0100] A timer is connected to the power adapter and performs discharge timing.
[0101] Beneficial effects of the above technical solution: The present application can realize high-voltage testing by switching between two sets of power adapters, thereby improving the test efficiency. The control method of the present application can not only be integrated into an automated high-voltage test fixture, but is also friendly to high-voltage test fixtures that require manual testing, and can minimize the risk of operators being affected by high voltage when disassembling the power adapter, thereby ensuring the safety of the entire test process.
[0102] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A control method for a high voltage test fixture, characterized in that: The following steps are involved: Verify the position of the power adapter installed on the high-voltage test fixture; wherein the high-voltage test fixture is provided with two sets of clamps for clamping the power adapter; When the verification is passed, the interlock control mechanism is used to control the interlock module of the high-voltage test fixture to perform high-voltage tests on the two sets of power adapters alternately; Collect key parameters in the high-voltage test process in real time, and determine whether the key parameters deviate from the expected standards. If they deviate from the expected standards, respond based on the exception handling mechanism; The steps of using the interlock control mechanism to control the interlock module of the high-voltage test fixture and alternately performing high-voltage tests on two groups of power adapters include: When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters; After the test of the first set of power adapters is completed and removed; determine whether the position verification of the second set of power adapters is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second set of power adapters; wherein, The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture; After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
2. A control method for a high voltage test fixture as claimed in claim 1, characterized in that: The steps to verify the position of the power adapter installed on the high voltage test fixture include: The blocking signals detected by each photoelectric sensor are captured in real time and denoised to obtain positioning signals; wherein the photoelectric sensor is used to capture the blocking of the emitted light by the power adapter; Extract key features that can characterize the installation status of each group of power adapters from the positioning signal; Using pattern recognition algorithms to match key features to verify the installation location of the power adapter; If an installation anomaly is detected, a warning will be issued via a digital signal or indicator light.
3. A control method for a high voltage test fixture as claimed in claim 1, characterized in that: The response steps based on the exception handling mechanism include: The key parameters collected in real time during the high-voltage test are input into a stream processing framework; wherein the stream processing framework is integrated with an isolation forest model for scoring the data; The anomaly score is calculated for each key parameter and the combination of different key parameters using the isolation forest model; Set independent thresholds for the anomaly scores of each key parameter and parameter combination. When any anomaly score exceeds its corresponding threshold, an alarm mechanism is triggered.
4. A control method for a high voltage test fixture as claimed in claim 1, characterized in that: After completing the high voltage test on each set of power adapters, the method further includes: Sending a cut-off command to the high-voltage tester to cut off the high-voltage power supply to the power adapter of the current group; When the cut-off command is issued, the discharge timer is started, and the discharge timer is preset with a countdown of the safety time; When the timer is finished, a discharge completion message is generated and displayed.
5. A control method for a high voltage test fixture as claimed in claim 3, characterized in that: After completing the high voltage test on each group of power adapters, the method further includes: during the high voltage test, according to the change of the state of each group of power adapters, changing the flashing mode of the LED light on the high voltage test fixture.
6. A control method for a high voltage test fixture as claimed in claim 3, characterized in that: The steps of triggering the alarm mechanism include: when any abnormal score exceeds its corresponding threshold, the power-off mechanism is automatically triggered to immediately cut off all power supplies.
7. A control device for a high voltage test fixture, characterized in that: It includes verification module, high voltage test module and exception handling module; among them, The verification module is used to verify the position of the power adapter installed on the high-voltage test fixture; wherein the high-voltage test fixture is provided with two sets of clamps for clamping the power adapter; The high-voltage test module is used to control the interlock module of the high-voltage test fixture by using the interlock control mechanism after the verification is passed, and perform high-voltage tests on two sets of power adapters alternately; The exception handling module is used to collect various key parameters in the high-voltage test process in real time, and determine whether the key parameters deviate from the expected standards. When they deviate from the expected standards, they respond based on the exception handling mechanism; The high voltage test module is used to control the interlock module of the high voltage test fixture by using the interlock control mechanism after the verification is passed, and the method of alternately performing high voltage tests on two groups of power adapters includes: When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters; After the test of the first set of power adapters is completed and removed; determine whether the position verification of the second set of power adapters is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second set of power adapters; wherein, The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture; After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
8. A control device for a high voltage test fixture as claimed in claim 7, characterized in that: The high voltage test module is specifically used for: When the position verification of the first group of power adapters is passed, the interlock logic circuit is controlled to start a high voltage test on the first group of power adapters; After the first set of power adapters are tested and disassembled; Determine whether the position verification of the second power adapter is passed. If the verification is passed, control the interlock logic circuit to start the high voltage test of the second power adapter; wherein, The second set of power adapters is installed on the high voltage test fixture while the first set of power adapters is being tested; while the second set of power adapters is being tested, the new first set of power adapters is installed on the high voltage test fixture; After the second set of power adapters are tested and removed, repeat the above steps, alternating between verification and high voltage testing of each set of power adapters until all power adapters have completed the high voltage test.
9. A high voltage test fixture, characterized in that: A control method for a high-voltage test fixture according to any one of claims 1 to 6, comprising: A high-voltage test fixture body, on which a power adapter and two sets of clamps for clamping the power adapter are installed, wherein there is at least one power adapter; A timer is connected to the power adapter and performs discharge timing.
Citation Information
Patent Citations
Full-automatic power adapter high-voltage tester
CN108919014A
Energy efficiency detection method of power adapter and system thereof
CN104635176A