An intelligent communication withstand voltage test device and method and production management system

Abstract

The present disclosure relates to the field of communication testing technology, and specifically to an intelligent communication withstand voltage test device and method and a production management system. The present disclosure abandons the traditional operation of manually setting test parameters, and uses a main control module in a low-voltage working area to control a high-voltage generating module to provide a high-voltage power supply with specified output parameters, providing a high-voltage working area for a test unit module, and performing withstand voltage tests on multiple communication modules under test through multiple withstand voltage test interface units included in a withstand voltage test interface matrix of the test unit module; wherein the interface unit control circuit module also switches the communication module under test between the withstand voltage test state and the communication state under the control of the main control module. The present disclosure simplifies the personnel test operation, can accurately locate the faulty communication module, improves the test efficiency and test safety, and can also facilitate the communication between the main control module and the communication module under test.

Description

Technical Field

[0001] The present disclosure relates to the field of communication testing technology, and in particular to an intelligent communication withstand voltage testing device and method, and a production management system. Background Art

[0002] The current communication system, especially the communication module in the power communication system, needs to meet the communication module withstand voltage index according to the safety regulations. Generally, the communication module is subjected to withstand voltage test to determine whether it meets the standard. The specific withstand voltage test method is: short-circuit all the pins of the weak current interface of the tested communication module together, and short-circuit all the pins of the strong current interface together to form a weak current interface group and a strong current interface group respectively, and then apply a high-voltage AC power supply between the two interface groups through the withstand voltage tester, and then determine whether a breakdown phenomenon occurs or the leakage current exceeds the standard by monitoring the current passing through the tested communication module, such as Figure 1 As shown, if breakdown occurs or the leakage current exceeds the preset limit, it is judged that the communication module under test does not meet the withstand voltage index and does not meet the above safety requirements.

[0003] In order to meet this test requirement, manufacturers need to use a dedicated withstand voltage test fixture and a withstand voltage tester to perform the above withstand voltage test when the communication module products leave the factory. In order to improve the test efficiency, multiple communication modules are generally tested at the same time. Figure 2 As shown in the figure, the operator first loads the module under test (DUT) (i.e. the communication module to be tested) into the withstand voltage test fixture, presses it tightly and ensures good contact between the DUT and the withstand voltage test fixture, then manually starts the withstand voltage tester with preset parameters to input high voltage to the withstand voltage test fixture, and removes the DUT after the withstand voltage test is completed. Determining whether the DUT has passed the withstand voltage test requires manual operation, specifically: according to the test results displayed by the withstand voltage tester, the DUT is classified and stored after the test results are manually interpreted. The specific single-round withstand voltage test process is as follows: Figure 3 shown.

[0004] Therefore, in the traditional single-round withstand voltage test process, since all DUTs are connected in parallel, when the withstand voltage tester detects whether the leakage current exceeds the standard or a breakdown occurs, once this round of withstand voltage test fails, it is impossible to distinguish which DUT has a leakage current that exceeds the standard or a high-voltage breakdown that causes the withstand voltage test failure. There is no data exchange between the test equipment and the DUT, and there is a lack of basic detection methods for the DUT. The information of the DUT cannot be collected, and the function test of the communication interface of the DUT before and after the withstand voltage test cannot be performed.

[0005] The operation of existing withstand voltage testers and withstand voltage test fixtures all rely on manual operation, and automated testing cannot be achieved. In addition, the preset parameters of the withstand voltage tester need to be set manually before the test, lacking the necessary verification and feedback mechanism. The test process has certain defects, and there are risks such as misjudgment and missed tests. Summary of the invention

[0006] In order to solve the problems in the related art, the embodiments of the present disclosure provide an intelligent communication withstand voltage test device and method and a production management system.

[0007] In a first aspect, an intelligent communication withstand voltage test device is provided in an embodiment of the present disclosure, which is used to perform withstand voltage tests on multiple communication modules under test, wherein the communication modules under test include a strong current terminal group and a weak current terminal group, and the device includes: a high voltage generating module, a main control module in a low voltage working area, and a test unit module in a high voltage working area;

[0008] The main control module is connected to the high voltage generating module and is used to control the high voltage generating module to provide a high voltage power supply with specified output parameters based on an external input voltage;

[0009] The test unit module includes a test fixture and a test base plate; a withstand voltage test interface matrix is ​​provided on the test base plate, the withstand voltage test interface matrix includes a plurality of withstand voltage test interface units, and the withstand voltage test interface unit includes: a high voltage test loop and a current sensor; the current sensor is connected to the high voltage test loop, and the main control module is connected to the current sensor; wherein the high voltage test loop includes: a high voltage input interface, an interface unit control circuit module, a strong current terminal probe and a weak current terminal probe, the high voltage input interface is connected to the interface unit control circuit module and the strong current terminal probe, and the interface unit control circuit module is connected to the weak current terminal probe;

[0010] When the test fixture fixes the multiple communication modules under test on the test base plate, the strong current terminal probe and the weak current terminal probe of the withstand voltage test interface unit are respectively connected to the strong current terminal group and the weak current terminal group of the communication module under test;

[0011] The high voltage input interfaces of the plurality of withstand voltage test interface units are connected in parallel with the high voltage generating module;

[0012] The main control module is connected to the interface unit control circuit module through an isolated communication link; the interface unit control circuit module switches the communication module under test between a withstand voltage test state and a communication state under the control of the main control module; when the communication module under test is in the withstand voltage test state, the high-voltage input interface receives the high-voltage power supply of the specified output parameters, and the current sensor collects the high-voltage loop current value of the communication module under test in the high-voltage test loop and transmits it to the main control module; when the communication module under test is in the communication state, the communication module under test communicates with the main control module through the interface unit control circuit module.

[0013] According to an embodiment of the present disclosure, the main control module includes a control unit and a withstand voltage test control interface array connected to the control unit; the withstand voltage test control interface array is connected to the withstand voltage test interface matrix; the control unit controls the withstand voltage test interface matrix through the withstand voltage test control interface array;

[0014] The withstand voltage test control interface array includes a plurality of withstand voltage test control interface groups, wherein one withstand voltage test control interface group is connected to one withstand voltage test interface unit.

[0015] According to an embodiment of the present disclosure, the withstand voltage test control interface group includes a current sampling interface and a first isolated communication interface, and the withstand voltage test interface unit also includes: a current output interface and a second isolated communication interface;

[0016] The control unit is connected to the current sampling interface, the current sampling interface is connected to the current output interface, and the current output interface is connected to the current sensor, so that the current sensor is controlled by the control unit;

[0017] The control unit is connected to the first isolated communication interface, the first isolated communication interface is connected to the second isolated communication interface, and the second isolated communication interface is connected to the interface unit control circuit module, so that the control unit is connected to the interface unit control circuit module through the isolated communication link.

[0018] According to an embodiment of the present disclosure, it further includes: an optical code scanning module in a low-voltage working area; the main control module further includes a code scanning control interface connected to the control unit, and the control unit is connected to the optical code scanning module through the code scanning control interface;

[0019] The optical code scanning module is used to identify the identification code of the communication module under test to obtain the first serial number information of the communication module under test, and transmit the first serial number information to the control unit;

[0020] When the communication module under test is in a communication state, the control unit obtains second serial number information of the communication module under test, and compares the second serial number information with the first serial number information to obtain a communication module information comparison result.

[0021] According to an embodiment of the present disclosure, the main control module further comprises: a high voltage generation module control interface connected to the control unit;

[0022] The control unit is connected to the high voltage generation module via the high voltage generation module control interface.

[0023] According to an embodiment of the present disclosure, it also includes: a control button in a low-voltage working area; the main control module also includes a button input interface connected to the control unit; the control unit is connected to the control button through the button input interface; the control button is used to start or terminate the voltage withstand test, and send the start information or termination information to the control unit.

[0024] According to an embodiment of the present disclosure, it also includes: an audible and visual alarm unit in a low-voltage working area; the main control module also includes an alarm output interface connected to the control unit; the control unit is connected to the audible and visual alarm unit through the alarm output interface; the audible and visual alarm unit is used to output an audible and visual prompt signal under the control of the control unit, and the audible and visual prompt signal is used to prompt the operating status of the intelligent communication withstand voltage test device.

[0025] According to an embodiment of the present disclosure, the interface unit control circuit module includes: an interface unit control circuit, a first relay group and a second relay group; the interface unit control circuit is connected to the weak current terminal probe, and the first relay group and the second relay group are connected in parallel between the interface unit control circuit and the weak current terminal probe;

[0026] The high-voltage test circuit comprises: a high-voltage input interface, a second relay group, a strong-current terminal probe and a weak-current terminal probe, wherein the high-voltage input interface is connected to the second relay group and the strong-current terminal probe, and the second relay group is connected to the weak-current terminal probe;

[0027] The main control module is connected to the interface unit control circuit via the isolated communication link; under the control of the main control module, the interface unit control circuit controls the first relay group to be connected to the weak-current terminal probe and the second relay group to be disconnected from the weak-current terminal probe, so as to switch the communication module under test to the communication state, and controls the first relay group to be disconnected from the weak-current terminal probe and the second relay group to be connected to the weak-current terminal probe, so as to switch the communication module under test to the withstand voltage test state.

[0028] According to an embodiment of the present disclosure, it further includes: a power supply module; the power supply module includes: a first power supply module, a second power supply module and an isolation transformer;

[0029] The first power supply module is used to convert the external input voltage into a low-voltage working power supply to supply power to the modules in the low-voltage working area;

[0030] The isolation transformer is connected to the second power supply module and is used for electrically isolating the external input voltage and converting it into a high-isolation working power supply through the second power supply module to power the test unit module.

[0031] According to an embodiment of the present disclosure, an interlocking module in a low-voltage working area is further included; the interlocking module is communicatively connected with the main control module;

[0032] The interlocking module is used to perform a safety condition check on the intelligent communication withstand voltage test device before performing a withstand voltage test on the communication module under test, and to notify the main control module to allow the withstand voltage test when the safety condition check result is normal;

[0033] The interlocking module is also used to monitor the operating status information of the intelligent communication withstand voltage test device when the communication module under test is in the withstand voltage test state, and control the intelligent communication withstand voltage test device to enter a protection state when the operating status information is abnormal.

[0034] According to an embodiment of the present disclosure, the test unit module also includes a grating sensor; the grating sensor is used to detect whether there is foreign object intrusion into the high-voltage working area, and send the foreign object intrusion detection result to the interlocking module as the safety condition inspection result.

[0035] According to an embodiment of the present disclosure, when the communication module under test is in the communication state, the strong current terminals in the strong current terminal group of the communication module under test are disconnected, and the weak current terminals in the weak current terminal group are disconnected;

[0036] When the communication module under test is in the withstand voltage test state, the strong current terminals in the strong current terminal group of the communication module under test are short-circuited, and the weak current terminals in the weak current terminal group are short-circuited;

[0037] The main control module is used to obtain the withstand voltage test result of the communication module under test according to the high-voltage loop current value obtained from the current sensor when the communication module under test is in the withstand voltage test state.

[0038] According to an embodiment of the present disclosure, after the withstand voltage test of the multiple communication modules under test is completed, the main control module is used to control the high voltage generating module to stop outputting the high voltage power supply, record the withstand voltage test results of the multiple communication modules under test, and control the test fixture to lift.

[0039] According to an embodiment of the present disclosure, before controlling the test fixture to lift, the main control module is also used to: control the interface unit control circuit module to switch the communication module under test to the communication state again to verify whether the multiple communication modules under test are damaged in the voltage withstand test, and record the voltage withstand damage results of the multiple communication modules under test.

[0040] According to an embodiment of the present disclosure, it further includes: a communication module in a low-voltage working area; the main control module is connected to the communication module, and the main control module sends the withstand voltage test result and / or the withstand voltage damage result to the communication module;

[0041] The communication module transmits the withstand voltage test result and / or the withstand voltage damage result.

[0042] According to an embodiment of the present disclosure, the main control module further includes a control unit and a communication module control interface connected to the control unit; the control unit is connected to the communication module via the communication module control interface.

[0043] In a second aspect, an embodiment of the present disclosure provides a production management system, comprising: a control device, a production management server, and an intelligent communication withstand voltage test device as described in any one of the first aspects;

[0044] The control device is in communication connection with the intelligent communication withstand voltage test device, and is used to send a withstand voltage test instruction to the intelligent communication withstand voltage test device, so as to control the intelligent communication withstand voltage test device to perform withstand voltage test on multiple communication modules under test;

[0045] The control device is connected to the production management server and is used to upload the withstand voltage test result obtained from the intelligent communication withstand voltage test device to the production management server;

[0046] The control device sends a test completion instruction to the intelligent communication withstand voltage test device to control the intelligent communication withstand voltage test device to release the multiple communication modules under test.

[0047] According to an embodiment of the present disclosure, when the interlocking module of the intelligent communication withstand voltage test device controls the intelligent communication withstand voltage test device to enter a protection state, the intelligent communication withstand voltage test device sends abnormal information to the control device, and the control device uploads the abnormal information to the production management server.

[0048] In a third aspect, an intelligent communication withstand voltage test method is provided in an embodiment of the present disclosure, which is used to perform a withstand voltage test on multiple communication modules under test, wherein the communication modules under test include a strong current terminal group and a weak current terminal group, and the method includes:

[0049] The main control module controls the test fixture to fix multiple communication modules under test on the test base plate;

[0050] The main control module controls the high-voltage generating module to output a high-voltage power supply with specified output parameters to the withstand voltage test interface matrix of the test base plate, so as to perform a withstand voltage test on the multiple communication modules under test, wherein the withstand voltage test interface matrix includes multiple withstand voltage test interface units, and the withstand voltage test interface unit includes: a high-voltage test loop and a current sensor, and the current sensor is connected to the high-voltage test loop; the high-voltage test loop includes: a high-voltage input interface, an interface unit control circuit module, a strong-current terminal probe and a weak-current terminal probe, and the high-voltage input interface connects the interface unit control circuit module and the strong-current terminal probe, and the interface unit control circuit module connects the weak-current terminal probe; the high-voltage input interfaces of the multiple withstand voltage test interface units are all connected to the high-voltage generating module in parallel;

[0051] The main control module controls the interface unit control circuit module to switch the communication module under test between the withstand voltage test state and the communication state; when the communication module under test is in the communication state, the main control module communicates with the communication module under test; when the communication module under test is in the withstand voltage test state, the main control module reads the high-voltage loop current value of the current sensor on the high-voltage test loop, and obtains the withstand voltage test result of the communication module under test according to the high-voltage loop current value.

[0052] According to an embodiment of the present disclosure, before executing the withstand voltage test, the interlocking module performs a safety condition check on the execution environment of the withstand voltage test, and when the safety condition check result is normal, notifies the main control module to allow the withstand voltage test to be executed.

[0053] According to an embodiment of the present disclosure, before performing the withstand voltage test:

[0054] The main control module controls the optical code scanning module to identify the identification code of the communication module under test to obtain the first serial number information of the communication module under test;

[0055] The main control module controls the interface unit control circuit module to switch the communication module under test to a communication state, and obtains second serial number information from the communication module under test;

[0056] The main control module compares the second serial number information with the first serial number information to obtain a communication module information comparison result.

[0057] According to an embodiment of the present disclosure, the main control module controls the sound and light alarm unit to output a sound and light prompt signal, and the sound and light prompt signal is used to prompt the execution status of the withstand voltage test.

[0058] According to an embodiment of the present disclosure, when the withstand voltage test is performed, the interlocking module monitors the execution status of the withstand voltage test, and enters a protection state when the execution status is abnormal.

[0059] According to an embodiment of the present disclosure, after the voltage withstand test is completed, the main control module controls the high-voltage generating module to stop outputting the high-voltage power supply, records the voltage withstand test results of the multiple communication modules under test, encrypts the voltage withstand test results of the multiple communication modules under test and writes them into a local log, and controls the test fixture to lift up to release the multiple communication modules under test.

[0060] According to an embodiment of the present disclosure, before controlling the test fixture to lift, the main control module controls the interface unit control circuit module to switch the communication module under test to the communication state again, verifies whether the multiple communication modules under test are damaged in the voltage withstand test, and records the voltage withstand damage results of the multiple communication modules under test.

[0061] According to the technical solution provided by the embodiment of the present disclosure, the present disclosure abandons the traditional operation of manually setting test parameters, and uses the main control module in the low-voltage working area to control the high-voltage generating module to provide a high-voltage power supply with specified output parameters, and provides a high-voltage working area for the test unit module. Through the multiple withstand voltage test interface units included in the withstand voltage test interface matrix of the test unit module, multiple communication modules under test are tested at the same time, and the leakage current of each communication module under test can be accurately detected to accurately locate the faulty communication module, and the communication module under test can be controlled to communicate with the main control module when the withstand voltage test is not performed. The present disclosure simplifies the test operation of personnel, avoids misoperation, can accurately locate the faulty communication module, improves the test efficiency and test safety, and can also facilitate the communication between the main control module and the communication module under test.

[0062] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0064] Figure 1A schematic diagram showing an operation method of performing a withstand voltage test on a DUT in the prior art;

[0065] Figure 2 A schematic diagram showing an operation method of performing a withstand voltage test on multiple DUTs in the prior art;

[0066] Figure 3 Showing the prior art using Figure 2 Flow chart of the operation method for performing a withstand voltage test;

[0067] Figure 4 A schematic structural diagram of an intelligent communication withstand voltage test device according to an embodiment of the present disclosure is shown;

[0068] Figure 5 A schematic diagram showing the structure of a main control module according to an embodiment of the present disclosure is shown;

[0069] Figure 6 A schematic diagram showing the connection relationship between the withstand voltage test interface unit and other modules according to an embodiment of the present disclosure;

[0070] Figure 7 A schematic diagram showing the connection relationship between multiple withstand voltage test interface units and other modules in a withstand voltage test interface matrix according to an embodiment of the present disclosure;

[0071] Figure 8 A structural block diagram of a production management system according to an embodiment of the present disclosure is shown;

[0072] Fig. 9 A flow chart showing an operation method of a withstand voltage test device according to an embodiment of the present disclosure when producing a communication module product;

[0073] Fig.10 A flow chart of an intelligent communication withstand voltage test method according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0074] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0075] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof exist or are added.

[0076] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0077] In the present disclosure, if it involves operations of obtaining user information or user data or displaying user information or user data to others, the operations are all authorized and confirmed by the user, or actively selected by the user.

[0078] The inventors found that the existing communication module withstand voltage test operation process relies heavily on the operation of production line operators: from the setting of withstand voltage test parameters to the test time of the withstand voltage test and the interpretation of the withstand voltage results, which brings the following problems:

[0079] 1. Test parameters and test time cannot be guaranteed. According to the product specifications of general communication modules, the withstand voltage test time can be a set time length (e.g. 60s), and the test voltage can be a set voltage (e.g. AC 4200V). However, there may be risks of misoperation in setting the test time and test parameters.

[0080] 2. There is no test record for the withstand voltage test, making it difficult to trace the production process. The product serial number is usually set on the surface of the product shell of the communication module, mostly in the form of a laser-engraved QR code or barcode. However, due to the high proportion of manual operation in the traditional withstand voltage test method, it is impossible to know for sure whether the communication module has undergone the withstand voltage test, which is not convenient for product traceability.

[0081] 3. Good products and bad products are easily confused, and subsequent processes are difficult to check. Even if the operator separates good products from bad products, it is difficult to distinguish and screen out bad products through automatic means of withstand voltage testing.

[0082] 4. When the test process fails, the tester cannot accurately locate the DUT with the problem, and can only mark the entire board as failed and enter the repair process. For example, when 10 DUTs are tested on a test device at the same time, one of the DUTs has a withstand voltage breakdown phenomenon, but the operator cannot distinguish which DUT caused the failure in this process. All 10 DUTs can only be taken out and classified as defective products and sent to the repair process for repair, which increases the first defect rate of the production line.

[0083] 5. Lack of means to read basic information of DUT is not conducive to process control.

[0084] 6. During actual testing, there is a certain probability that the leakage current of the DUT does not exceed the limit, but the module function is abnormal. The current withstand voltage test method cannot effectively detect this situation, causing the faulty DUT to enter the next process.

[0085] In view of the drawbacks of the existing solutions, the present disclosure proposes an intelligent communication withstand voltage test device for performing withstand voltage tests on multiple communication modules under test, wherein the communication modules under test include a strong current terminal group and a weak current terminal group, and the device includes: a high voltage generation module, a main control module in a low voltage working area, and a test unit module in a high voltage working area; the main control module is connected to the high voltage generation module, and is used to control the high voltage generation module to provide a high voltage power supply with specified output parameters based on an external input voltage; the test unit module includes a test fixture and a test base plate; a withstand voltage test interface matrix is ​​provided on the test base plate, and the withstand voltage test interface matrix includes a plurality of withstand voltage test interface units, and the withstand voltage test interface unit includes: a high voltage test loop and a current sensor; the current sensor is connected to the high voltage test loop, and the main control module is connected to the current sensor; wherein the high voltage test loop includes: a high voltage input interface, an interface unit control circuit module, a strong current terminal probe, and a weak current terminal probe, and the high voltage input interface connects the interface unit control circuit module and the strong current terminal probe needle, the interface unit control circuit module is connected to the weak-current terminal probe; when the test fixture fixes the multiple communication modules under test on the test base plate, the strong-current terminal probe and the weak-current terminal probe of the withstand voltage test interface unit are respectively connected to the strong-current terminal group and the weak-current terminal group of the communication module under test; the high-voltage input interfaces of the multiple withstand voltage test interface units are connected to the high-voltage generating module in parallel; the main control module is connected to the interface unit control circuit module through an isolated communication link; the interface unit control circuit module switches the communication module under test between the withstand voltage test state and the communication state under the control of the main control module; when the communication module under test is in the withstand voltage test state, the high-voltage input interface receives the high-voltage power supply of the specified output parameter, and the current sensor collects the high-voltage loop current value of the communication module under test on the high-voltage test loop and transmits it to the main control module; when the communication module under test is in the communication state, the communication module under test communicates with the main control module through the interface unit control circuit module.

[0086] The present invention abandons the traditional operation of manually setting test parameters, and controls the high-voltage generating module through the main control module to provide a high-voltage power supply with specified output parameters, thereby avoiding manual misoperation; the main control module also controls the withstand voltage test interface unit at the same time, so that the withstand voltage test interface matrix included therein can not only test multiple communication modules under test at the same time, but also accurately detect the leakage current of each communication module under test to accurately locate the faulty communication module, and can also control the communication module under test to communicate with the main control module when the withstand voltage test is not performed, thereby facilitating data interaction between the communication module under test and the main control module.

[0087] Figure 4FIG. 2 is a schematic diagram showing the structure of an intelligent communication withstand voltage test device according to an embodiment of the present disclosure. Figure 4 As shown, the device includes: a high-voltage generating module, a power supply module, a main control module in a low-voltage working area, an optical code scanning module, an interlocking module, a control button, an audible and visual alarm unit and a communication module, and a test unit module in a high-voltage working area.

[0088] According to an embodiment of the present disclosure, the intelligent communication withstand voltage test device is used to perform withstand voltage test on multiple communication modules under test, and the communication modules under test include a high-current terminal group and a low-current terminal group. The high-current terminal group includes multiple strong-point terminals, and the weak-point terminal group includes multiple weak-point terminals.

[0089] The present disclosure can perform a withstand voltage test on multiple communication modules under test at the same time. Those skilled in the art should understand that the present disclosure can also perform a withstand voltage test on only one communication module under test, and the number of the communication modules under test is not used as a technical means to limit the scope of application of the present disclosure.

[0090] In the present disclosure, the working area is divided, and the test unit module is set in the high-voltage working area, so that the communication module under test is subjected to a withstand voltage test in the high-voltage working area, and the high-voltage working area is provided by the high-voltage generating module; the main control module is set in the low-voltage working area, and cooperates with the optical scanning module, interlocking module, control button, sound and light alarm unit and communication module in the low-voltage working area to realize the overall control of the intelligent communication withstand voltage test device; and the intelligent communication withstand voltage test device is powered by the power supply module.

[0091] According to an embodiment of the present disclosure, the power supply module includes: a first power supply module, a second power supply module and an isolation transformer.

[0092] The first power supply module is used to convert the external input voltage into a low-voltage working power supply to power the modules in the low-voltage working area. The external input voltage can be an AC 220V voltage, an AC 380V voltage, etc., which can be selected according to user needs.

[0093] The isolation transformer is connected to the second power supply module, and is used to electrically isolate the external input voltage and then convert it into a high-isolation working power supply through the second power supply module to power the test unit module. Specifically, in the field of power supplies, especially in special application scenarios such as high-voltage power supplies, high isolation means that the power supply can effectively isolate the electrical connection between the input and output, reducing or eliminating the mutual influence and interference between the input and output. The isolation standard of the high-isolation DC power supply generally involves multiple aspects, including electrical isolation, insulation resistance, withstand voltage level, etc. Therefore, the present disclosure utilizes an isolation transformer and a second power supply module to provide a high-isolation working power supply, and realizes the isolation of the high-voltage working area from the low-voltage working area, thereby ensuring the safety, stability and reliability of power supply in the application scenario of the high-voltage working area of ​​the test unit module.

[0094] According to an embodiment of the present disclosure, the first power module and the second power module may be AC-DC conversion modules, thereby converting the external AC voltage into the DC voltage required by the device, so as to provide a stable and reliable working power supply for the device.

[0095] Figure 5 A schematic structural diagram of a main control module according to an embodiment of the present disclosure is shown.

[0096] like Figure 5 As shown, the main control module includes: a control unit and a withstand voltage test control interface array connected to the control unit, a high voltage generation module control interface, a code scanning control interface, a key input interface, an alarm output interface, a communication module control interface and a memory; the withstand voltage test control interface array includes multiple withstand voltage test control interface groups, each withstand voltage test control interface group includes a current sampling interface and a first isolation communication interface.

[0097] In the present disclosure, the control unit may be a microcontroller unit (MCU), a system-on-chip (SoC), a digital signal processor (DSP), etc. As the core component of the main control module, the control unit is not only responsible for controlling the overall workflow of the intelligent communication withstand voltage test device, but also connected with other modules inside the intelligent communication withstand voltage test device through its rich interfaces, controlling the various modules of the intelligent communication withstand voltage test device to work together, and realizing precise control of the entire intelligent communication withstand voltage test device.

[0098] According to an embodiment of the present disclosure, the main control module is implemented based on an embedded controller, and a data storage space is provided inside the main control module.

[0099] According to an embodiment of the present disclosure, the main control module is connected to the high voltage generation module and is used to control the high voltage generation module to provide a high voltage power supply with specified output parameters based on an external input voltage.

[0100] Specifically, the control unit is connected to the high voltage generation module via the high voltage generation module control interface.

[0101] Since the existing communication withstand voltage test methods mostly require manual setting of test parameters, not only is it easy to make the test parameters invalid due to misoperation, but also when testing different communication modules, different test parameters need to be set, resulting in cumbersome operations, further increasing the probability of misoperation.

[0102] The present disclosure abandons the traditional manual setting operation, and controls the high voltage generation module through the main control module, so that the high voltage generation module can be controlled to output the high voltage power supply with specified output parameters according to user needs. The specified output parameters can be output voltage type, output voltage size, voltage output time, voltage rise slope, etc. Users can set the output parameters of the high voltage power supply through the main control module according to the withstand voltage test requirements, which is not only convenient to set, but also can flexibly meet different user needs, and can also prevent manual operation from affecting the withstand voltage test quality.

[0103] According to an embodiment of the present disclosure, the test unit module includes a test fixture and a test base plate; specifically, in the test unit module, the test fixture and the test base plate are adjustable, for example, by a hinge, a slide rail, etc., but not limited thereto. The test fixture can be an electric fixture or a pneumatic fixture, so that the motor of the electric fixture or the air pump of the pneumatic fixture is controlled by the main control module to control the opening and closing of the test fixture, so that when the test fixture is pressed down, multiple communication modules under test are fixed on the test base plate, and when the test fixture is lifted, multiple communication modules under test are released.

[0104] According to an embodiment of the present disclosure, a voltage test interface matrix is ​​provided on the test baseboard, the voltage test interface matrix includes multiple voltage test interface units, and the voltage test control interface array is connected to the voltage test interface matrix; a control unit controls the voltage test interface matrix through the voltage test control interface array; the voltage test control interface array includes multiple voltage test control interface groups, wherein one voltage test control interface group is connected to one voltage test interface unit, so that voltage test is performed on multiple communication modules under test through multiple voltage test interface units.

[0105] Figure 6 A schematic diagram showing the connection relationship between the withstand voltage test interface unit and other modules according to an embodiment of the present disclosure is shown.

[0106] like Figure 6As shown, the withstand voltage test interface unit includes: a high voltage test circuit and a current sensor; the current sensor is connected to the high voltage test circuit, and the main control module is connected to the current sensor; wherein, the high voltage test circuit includes: a high voltage input interface, an interface unit control circuit module, a high-voltage terminal probe and a low-voltage terminal probe, the high voltage input interface is connected to the interface unit control circuit module and the high-voltage terminal probe, and the interface unit control circuit module is connected to the low-voltage terminal probe.

[0107] Those skilled in the art should understand that Figure 6 The connection method between the current sensor and the high-voltage test circuit is only an example. The current sensor can be connected to the high-voltage test circuit in other ways, for example, connecting the current sensor between a high-voltage terminal probe and a high-voltage input interface.

[0108] Among them, when the test fixture fixes the multiple communication modules under test on the test base plate, the high-current terminal probe and the low-current terminal probe of the voltage-withstand test interface unit are respectively connected to the high-current terminal group and the low-current terminal group of the communication module under test, so that the communication module under test is in good contact with the probe on the test base plate without the need for human intervention.

[0109] According to an embodiment of the present disclosure, the high voltage input interfaces of the plurality of withstand voltage test interface units are connected in parallel with the high voltage generating module, such as Figure 7 Assume that the withstand voltage test interface matrix includes N withstand voltage test interface units, and the high voltage input interfaces of the N withstand voltage test interface units are connected in parallel with the high voltage generating module.

[0110] According to an embodiment of the present disclosure, the main control module is connected to the interface unit control circuit module through an isolated communication link; the interface unit control circuit module switches the communication module under test between a withstand voltage test state and a communication state under the control of the main control module; when the communication module under test is in the withstand voltage test state, the high-voltage input interface receives the high-voltage power supply with the specified output parameters, and the current sensor collects the high-voltage loop current value of the communication module under test in the high-voltage test loop and transmits it to the main control module; when the communication module under test is in the communication state, the communication module under test communicates with the main control module through the interface unit control circuit module.

[0111] Specifically, the withstand voltage test control interface group includes a current sampling interface and a first isolated communication interface, and the withstand voltage test interface unit also includes: a current output interface and a second isolated communication interface; the control unit is connected to the current sampling interface, the current sampling interface is connected to the current output interface, and the current output interface is connected to the current sensor to control the current sensor through the control unit; the control unit is connected to the first isolated communication interface, the first isolated communication interface is connected to the second isolated communication interface, and the second isolated communication interface is connected to the interface unit control circuit module to realize that the control unit is connected to the interface unit control circuit module through the isolated communication link.

[0112] In the present disclosure, the second isolated communication interface of the withstand voltage test interface unit is connected to the first isolated communication interface of the main control module to issue control instructions and exchange data. The physical form of the first isolated communication interface and the second isolated communication interface includes but is not limited to isolated wired connection, optical communication or wireless communication, which can realize a safe and reliable communication link between the high-voltage working area and the low-voltage working area. For example, the withstand voltage test interface unit communicates with the main control module through micro-power wireless, optical fiber or asynchronous serial interface, avoiding the high-voltage power supply from breaking through the main control module to cause damage to the main control module.

[0113] The present disclosure solves the problem that, because all tested communication modules are connected in parallel during the withstand voltage test, only the overall leakage current data can be seen at the withstand voltage tester (high voltage generating module), but the communication module with breakdown or leakage cannot be located.

[0114] The present invention can not only test multiple communication modules under test at the same time, but also accurately detect the leakage current of each communication module under test to accurately locate the faulty communication module, without the need for the entire batch to flow into the repair process, thereby improving the test accuracy and production efficiency; when the withstand voltage test is not performed, the communication module under test can also be controlled to communicate with the main control module, which facilitates the data interaction between the communication module under test and the main control module, thereby facilitating the main control module to perform process control on the communication module under test, and realizing the information control of the withstand voltage test.

[0115] According to an embodiment of the present disclosure, the interface unit control circuit module includes: an interface unit control circuit, a first relay group and a second relay group; the interface unit control circuit is connected to the weak current terminal probe, and the first relay group and the second relay group are connected in parallel between the interface unit control circuit and the weak current terminal probe.

[0116] Furthermore, the high-voltage test circuit includes: a high-voltage input interface, a second relay group, a high-voltage terminal probe and a low-voltage terminal probe, the high-voltage input interface connects the second relay group and the high-voltage terminal probe, and the second relay group connects the low-voltage terminal probe.

[0117] According to an embodiment of the present disclosure, the main control module is connected to the interface unit control circuit through the isolated communication link; under the control of the main control module, the interface unit control circuit controls the first relay group to be connected to the weak-current terminal probe and the second relay group to be disconnected from the weak-current terminal probe, so as to switch the communication module under test to the communication state, and controls the first relay group to be disconnected from the weak-current terminal probe and the second relay group to be connected to the weak-current terminal probe, so as to switch the communication module under test to the withstand voltage test state.

[0118] According to an embodiment of the present disclosure, when the communication module under test is in the communication state, the high-current terminals in the high-current terminal group of the communication module under test are disconnected, and the weak-current terminals in the weak-current terminal group are disconnected; when the communication module under test is in the withstand voltage test state, the high-current terminals in the high-current terminal group of the communication module under test are short-circuited, and the weak-current terminals in the weak-current terminal group are short-circuited.

[0119] According to an embodiment of the present disclosure, the main control module is used to obtain the withstand voltage test result of the communication module under test according to the high-voltage loop current value obtained from the current sensor when the communication module under test is in the withstand voltage test state.

[0120] According to an embodiment of the present disclosure, it also includes: an optical code scanning module in a low-voltage working area; the control unit is connected to the optical code scanning module via a code scanning control interface.

[0121] According to an embodiment of the present disclosure, the optical code scanning module is used to identify the identification code of the communication module under test to obtain the first serial number information of the communication module under test, and transmit the first serial number information to the control unit. The optical code scanning module can have a built-in camera and an embedded processor, and run an image recognition algorithm at the same time to achieve the acquisition of the serial number information.

[0122] When the communication module under test is in a communication state, the control unit obtains second serial number information of the communication module under test, and compares the second serial number information with the first serial number information to obtain a communication module information comparison result.

[0123] For example, the first serial number information is the surface product serial number of the communication module under test, such as a laser engraved code; the second serial number information is the internal product information directly obtained from the communication module under test. By judging whether the two are consistent, it is checked whether the corresponding relationship is correct, thereby avoiding the situation where omissions in the assembly process before the voltage resistance test lead to inconsistent object codes.

[0124] According to an embodiment of the present disclosure, it also includes: a control button in a low-voltage working area; the control unit is connected to the control button through the button input interface; the control button is used to start or terminate the voltage withstand test, and send the start information or termination information to the control unit.

[0125] The control button disclosed in the present invention is used by the test operator for manual operation, and the withstand voltage test process can be manually started or terminated through the control button.

[0126] According to an embodiment of the present disclosure, it also includes: an audible and visual alarm unit in a low-voltage working area; the main control module also includes an alarm output interface connected to the control unit; the control unit is connected to the audible and visual alarm unit through the alarm output interface; the audible and visual alarm unit is used to output an audible and visual prompt signal under the control of the control unit, and the audible and visual prompt signal is used to prompt the operating status of the intelligent communication withstand voltage test device. Wherein, the operating status includes: test start, test preparation, test in progress, result reading and data upload.

[0127] The present invention can realize sound and light reminders to test operators or production line inspectors through the sound and light alarm unit, thereby prompting the operating state of the device, so that subsequent test operators or production line inspectors can clearly understand the operating state of the intelligent communication withstand voltage test device when handling the corresponding problems.

[0128] According to an embodiment of the present disclosure, it also includes an interlocking module in a low-voltage working area; the interlocking module is communicatively connected to the main control module; the interlocking module is used to perform a safety condition check on the intelligent communication withstand voltage test device before performing a withstand voltage test on the communication module under test, and when the safety condition check result is normal, notify the main control module to allow the withstand voltage test.

[0129] Specifically, the safety condition check includes: detecting whether each safety circuit in the intelligent communication withstand voltage test device is closed, whether there is foreign matter invading the high-voltage working area and the low-voltage working area, whether the box of the intelligent communication withstand voltage test device is open, whether the overall power consumption of the intelligent communication withstand voltage test device is normal, whether the heartbeat signal of the main control module is normal, etc.

[0130] According to an embodiment of the present disclosure, the interlocking module is also used to monitor the operating status information of the intelligent communication withstand voltage test device when the communication module under test is in the withstand voltage test state, and to control the intelligent communication withstand voltage test device to enter a protection state when the operating status information is abnormal.

[0131] In the present disclosure, the interlocking module exists independently of the main control module and is responsible for safety protection. Its embedded software runs independently to monitor the overall operating status of the intelligent communication withstand voltage test device and the status of each safety circuit. The monitoring items include: whether the box of the intelligent communication withstand voltage test device is open, whether there are foreign objects entering the working area (high-voltage working area and low-voltage working area), whether the overall power consumption of the intelligent communication withstand voltage test device is normal, whether the heartbeat signal of the main control module is normal, etc. Once a safety-related abnormality occurs during the test, the protection mechanism is triggered, the power supply of the high-voltage generating module is disconnected, and the test fixture is lifted to release the communication module under test, thereby preventing the occurrence of safety accidents.

[0132] Among them, the grating sensor on the test unit module is used to detect whether there is foreign matter intrusion in the high-voltage working area, and the foreign matter intrusion detection result is sent to the interlocking module as the safety condition inspection result.

[0133] The grating sensor exists independently of the test base plate, can protect the mechanical structure in the high-voltage working area, and outputs a signal to the main control module and the interlocking module when a foreign object enters.

[0134] According to an embodiment of the present disclosure, after the withstand voltage test of the multiple communication modules under test is completed, the main control module is used to control the high voltage generating module to stop outputting the high voltage power supply, record the withstand voltage test results of the multiple communication modules under test, and control the test fixture to lift, wherein the withstand voltage test results can be encrypted and written into a local encrypted log.

[0135] The inventor found that there is a certain probability that the module does not perform poorly in the withstand voltage test stage (i.e., the leakage current is normal), but in fact the interface of the communication module has been damaged, resulting in abnormal module function. The next test process after the withstand voltage test is the aging test, in which the module function is not detected, but only high-temperature power-on aging is performed, resulting in the tested communication module being detected only in the power test process after entering the aging test process. At this time, it is impossible to locate whether the cause of the module damage is the withstand voltage test or the aging test, which is not conducive to the yield control of each process. Therefore, the module function can be tested at the end of the withstand voltage stage to confirm the actual production yield in the withstand voltage test stage.

[0136] According to an embodiment of the present disclosure, before controlling the test fixture to lift, the main control module is also used to: control the interface unit control circuit module to switch the communication module under test to the communication state again to verify whether the multiple communication modules under test are damaged in the voltage withstand test, and record the voltage withstand damage results of the multiple communication modules under test.

[0137] According to an embodiment of the present disclosure, it also includes: a communication module in a low-voltage working area; the main control module is connected to the communication module, and the main control module sends the voltage withstand test result and / or the voltage withstand damage result to the communication module; the communication module transmits the voltage withstand test result and / or the voltage withstand damage result.

[0138] According to an embodiment of the present disclosure, the main control module further includes a control unit and a communication module control interface connected to the control unit; the control unit is connected to the communication module via the communication module control interface.

[0139] According to an embodiment of the present disclosure, before controlling the test fixture to open, the main control module: controls the interface unit control circuit module to switch the communication module under test back to the communication state to verify whether the multiple communication modules under test are damaged in the voltage withstand test, records the voltage withstand damage results of the multiple communication modules under test, and encrypts the voltage withstand damage results and writes them into a local log. The local log can be used for subsequent inspection and tracing, and has a bidirectional correspondence with the data in the subsequent production management system. For example, the local log can be provided to the order entrusting party for spot checks, and the manufacturer's behavior can be constrained through technical means to prevent the test data from being falsified.

[0140] The present invention can exchange data with the communication module under test before and after the high-voltage power supply is applied, and screen out the modules under test whose leakage current does not exceed the limit or breakdown occurs but are damaged during the voltage withstand process, thereby achieving yield control in the voltage withstand test stage.

[0141] According to an embodiment of the present disclosure, the control unit is connected to the communication module through the communication control interface; the control unit sends the recorded voltage withstand test results and / or the voltage withstand damage results to the communication module; and the communication module transmits the voltage withstand test results and / or the voltage withstand damage results.

[0142] The communication module is responsible for external communication of the device to transmit test information to the production management system, and its communication methods include but are not limited to Ethernet, ZigBee, WiFi, GPRS and the like.

[0143] Figure 8 FIG. 2 shows a structural block diagram of a production management system according to an embodiment of the present disclosure. Figure 8As shown, the production management system 800 includes: a control device 810, a production management server 820 and an intelligent communication withstand voltage testing device 830 as described in any of the preceding items.

[0144] According to an embodiment of the present disclosure, the control device 810 is communicatively connected with the intelligent communication withstand voltage test device 830, and is used to send a withstand voltage test instruction to the intelligent communication withstand voltage test device 830, so as to control the intelligent communication withstand voltage test device 830 to perform a withstand voltage test on multiple communication modules under test; the control device 810 is connected with the production management server 820, and is used to upload the withstand voltage test results obtained from the intelligent communication withstand voltage test device 830 to the production management server 820; the control device 810 sends a test completion instruction to the intelligent communication withstand voltage test device 830, so as to control the intelligent communication withstand voltage test device 830 to release the multiple communication modules under test.

[0145] According to an embodiment of the present disclosure, when the interlocking module of the intelligent communication withstand voltage test device 830 controls the intelligent communication withstand voltage test device 830 to enter a protection state, the intelligent communication withstand voltage test device 830 sends abnormal information to the control device 810, and the control device 810 uploads the abnormal information to the production management server 820.

[0146] The present disclosure connects the intelligent communication withstand voltage test device 830 to the production management system, which makes it convenient for operators to operate on manual production lines and can also be applied to unmanned production lines, thereby improving test efficiency and reducing production labor costs.

[0147] Fig. 9 The flowchart of the operation method of the withstand voltage test device according to the embodiment of the present disclosure when producing a communication module product is shown below. Fig. 9 As a specific implementation, the operation method flow when producing a communication module product is described.

[0148] like Fig. 9 As shown, the execution method includes the following stages: test start, test preparation, test execution, result reading and data uploading.

[0149] At the beginning of the test:

[0150] If it is a manual production line, the operator places the communication module under test on the test position corresponding to the test base plate, and then presses the control button to notify the main control module to start the test process; if it is a fully automated production line, the robot places the communication module under test on the test position corresponding to the test base plate, and after the communication module under test communicates with the main control module, the main control module is notified to start the test process.

[0151] After the main control module starts the test process, the main control module first communicates with the interlocking module, which performs a safety condition check to check whether the various safety circuits in the intelligent communication withstand voltage test device are closed, whether there are foreign objects intruding into the working area (high-voltage working area and low-voltage working area), whether the equipment box of the communication withstand voltage test device is opened, whether the overall power consumption of the communication withstand voltage test device is normal, and whether the heartbeat signal of the main control module is normal. If there is no abnormality, the interlocking module will notify the main control module that the overall status of the equipment is normal and allow testing. Then the main control module configures the high-voltage test module according to the predetermined output parameters and prepares for the next stage.

[0152] During the test preparation phase:

[0153] The main control module controls the test unit module to make the test fixture move, press the communication module under test, and make the test probe and the communication module under test have good contact. After the communication module under test is pressed in place, the main control module communicates with the optical code scanning module, which scans the QR codes or bar codes on the shells of multiple communication modules under test at the same time through image recognition, and sends the QR codes or bar codes to the main control module.

[0154] The main control module controls each voltage withstand test interface unit to switch the internal relay group to the communication state, so that the low-voltage terminal group of the module under test can realize the communication function. The main control module can exchange data with the communication module under test. The main control module verifies whether the basic functions of the communication module under test are normal by reading the product serial number information written inside the communication module under test, and can compare the product serial number information obtained from the inside with the QR code or barcode on the shell of the module under test to check whether the corresponding relationship is correct, so as to avoid the situation where the object code is inconsistent due to omissions in the previous assembly process.

[0155] During the testing phase described:

[0156] After the main control module verifies that the product serial number information of multiple communication modules under test is correct, it switches the internal relay group of each withstand voltage test interface unit to the withstand voltage test state, and short-circuits the pins of the weak current terminal group of the communication module under test to connect to the high voltage test circuit. Then the main control module interacts with the high voltage test module to start the output of the high voltage power supply.

[0157] During this process, the main control module monitors the leakage current status of each communication module under test through the current sensor built into the test unit module and records it. Once the voltage withstand test fails, the leakage current data of each test unit module can be used to accurately locate the faulty communication module.

[0158] In the result reading phase:

[0159] If the leakage current exceeds the limit, the withstand voltage test is completed after the preset test time is reached, and the main control module controls the high voltage generation module to stop outputting high voltage power, records the current withstand voltage test leakage current data, and records the test status. At the same time, the main control module controls each withstand voltage test interface unit to switch the internal relay group to the communication state, re-executes the reading of the product serial number information inside the tested communication module, verifies whether the basic functions of the module are normal after the withstand voltage test, and screens out the communication module damaged by the withstand voltage test.

[0160] The main control module then controls the test fixture to lift up, encrypts the withstand voltage test results of the communication module under test and writes them into the local log, completing this round of testing.

[0161] Testing the module function at the end of the withstand voltage stage can confirm the actual production yield of the withstand voltage stage. At the same time, this test only performs basic testing on the communication module function and will not waste too much testing time.

[0162] During the data upload phase:

[0163] After this round of testing is completed, the communication module uploads data to the production management system server, notifies the operator or robot to take the communication module that has completed this round of testing and prepares for the next round of testing.

[0164] If a leakage current exceeds the limit during the test, the intelligent communication voltage withstand test device will immediately stop the test to ensure safety, locate the communication module that is damaged by voltage withstand breakdown, notify the operator or automated robot to handle it, pick out the faulty module, use a new module to fill the test position, and proceed to the next round of testing.

[0165] The present invention can test multiple communication modules at one time, and also realizes the full process collection of voltage resistance test data. At the same time, relatively comprehensive safety monitoring is carried out before and after the test to ensure the safety of the test equipment and staff.

[0166] Fig.10 FIG. 1 is a flow chart showing an intelligent communication withstand voltage test method according to an embodiment of the present disclosure. Fig.10 As shown, the method is used to perform a withstand voltage test on a plurality of communication modules under test, wherein the communication modules under test include a high-voltage terminal group and a low-voltage terminal group, and the method includes steps S1001 to S1003.

[0167] In step S1001, the main control module controls the test fixture to fix multiple communication modules under test on the test base plate.

[0168] In step S1002, the main control module controls the high voltage generation module to output a high voltage power supply with specified output parameters to the withstand voltage test interface matrix of the test baseboard to perform a withstand voltage test on the multiple communication modules under test.

[0169] Among them, the voltage withstand test interface matrix includes multiple voltage withstand test interface units, and the voltage withstand test interface unit includes: a high voltage test loop and a current sensor, and the current sensor is connected to the high voltage test loop; the high voltage test loop includes: a high voltage input interface, an interface unit control circuit module, a high-voltage terminal probe and a low-voltage terminal probe, and the high voltage input interface connects the interface unit control circuit module and the high-voltage terminal probe, and the interface unit control circuit module is connected to the low-voltage terminal probe; the high voltage input interfaces of the multiple voltage withstand test interface units are all connected to the high voltage generating module in parallel.

[0170] In step S1003, the main control module controls the interface unit control circuit module to switch the communication module under test between the withstand voltage test state and the communication state; when the communication module under test is in the communication state, the main control module communicates with the communication module under test; when the communication module under test is in the withstand voltage test state, the main control module reads the high-voltage loop current value of the current sensor in the high-voltage test loop, and obtains the withstand voltage test result of the communication module under test according to the high-voltage loop current value.

[0171] According to an embodiment of the present disclosure, before executing the withstand voltage test, the interlocking module performs a safety condition check on the execution environment of the withstand voltage test, and when the safety condition check result is normal, notifies the main control module to allow the withstand voltage test to be executed.

[0172] According to an embodiment of the present disclosure, before performing the voltage withstand test: the main control module controls the optical code scanning module to identify the identification code of the communication module under test to obtain the first serial number information of the communication module under test; the main control module controls the interface unit control circuit module to switch the communication module under test to a communication state, and obtain the second serial number information from the communication module under test; the main control module compares the second serial number information with the first serial number information to obtain a communication module information comparison result.

[0173] According to an embodiment of the present disclosure, the main control module controls the sound and light alarm unit to output a sound and light prompt signal, and the sound and light prompt signal is used to prompt the execution status of the withstand voltage test.

[0174] According to an embodiment of the present disclosure, when the withstand voltage test is performed, the interlocking module monitors the execution status of the withstand voltage test, and enters a protection state when the execution status is abnormal.

[0175] According to an embodiment of the present disclosure, after the voltage withstand test is completed, the main control module controls the high-voltage generating module to stop outputting the high-voltage power supply, records the voltage withstand test results of the multiple communication modules under test, encrypts the voltage withstand test results of the multiple communication modules under test and writes them into a local log, and controls the test fixture to lift up to release the multiple communication modules under test.

[0176] According to an embodiment of the present disclosure, before controlling the test fixture to lift, the main control module controls the interface unit control circuit module to switch the communication module under test to the communication state again, verifies whether the multiple communication modules under test are damaged in the voltage withstand test, and records the voltage withstand damage results of the multiple communication modules under test.

[0177] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other.

Claims

1. An intelligent communication withstand voltage test device, characterized in that: Used to perform a withstand voltage test on multiple communication modules under test, wherein the communication modules under test include a strong current terminal group and a weak current terminal group, and the device includes: a high voltage generating module, a main control module in a low voltage working area, and a test unit module in a high voltage working area; The main control module is connected to the high voltage generating module and is used to control the high voltage generating module to provide a high voltage power supply with specified output parameters based on an external input voltage; The test unit module includes a test fixture and a test base plate; a withstand voltage test interface matrix is ​​provided on the test base plate, the withstand voltage test interface matrix includes a plurality of withstand voltage test interface units, and the withstand voltage test interface unit includes: a high voltage test loop and a current sensor; the current sensor is connected to the high voltage test loop, and the main control module is connected to the current sensor; wherein the high voltage test loop includes: a high voltage input interface, an interface unit control circuit module, a strong current terminal probe and a weak current terminal probe, the high voltage input interface is connected to the interface unit control circuit module and the strong current terminal probe, and the interface unit control circuit module is connected to the weak current terminal probe; When the test fixture fixes the multiple communication modules under test on the test base plate, the strong current terminal probe and the weak current terminal probe of the withstand voltage test interface unit are respectively connected to the strong current terminal group and the weak current terminal group of the communication module under test; The high voltage input interfaces of the plurality of withstand voltage test interface units are connected in parallel with the high voltage generating module; The main control module is connected to the interface unit control circuit module through an isolated communication link; the interface unit control circuit module switches the communication module under test between a withstand voltage test state and a communication state under the control of the main control module; when the communication module under test is in the withstand voltage test state, the high-voltage input interface receives the high-voltage power supply of the specified output parameters, and the current sensor collects the high-voltage loop current value of the communication module under test in the high-voltage test loop and transmits it to the main control module; when the communication module under test is in the communication state, the communication module under test communicates with the main control module through the interface unit control circuit module.

2. The device according to claim 1, characterized in that: The main control module includes a control unit and a withstand voltage test control interface array connected to the control unit; the withstand voltage test control interface array is connected to the withstand voltage test interface matrix; the control unit controls the withstand voltage test interface matrix through the withstand voltage test control interface array; The withstand voltage test control interface array includes a plurality of withstand voltage test control interface groups, wherein one withstand voltage test control interface group is connected to one withstand voltage test interface unit.

3. The device according to claim 2, characterized in that The withstand voltage test control interface group includes a current sampling interface and a first isolated communication interface, and the withstand voltage test interface unit also includes: a current output interface and a second isolated communication interface; The control unit is connected to the current sampling interface, the current sampling interface is connected to the current output interface, and the current output interface is connected to the current sensor, so that the current sensor is controlled by the control unit; The control unit is connected to the first isolated communication interface, the first isolated communication interface is connected to the second isolated communication interface, and the second isolated communication interface is connected to the interface unit control circuit module, so that the control unit is connected to the interface unit control circuit module through the isolated communication link.

4. The device according to claim 3, characterized in that Also includes: An optical code scanning module in a low-voltage working area; the main control module further comprises a code scanning control interface connected to the control unit, and the control unit is connected to the optical code scanning module through the code scanning control interface; The optical code scanning module is used to identify the identification code of the communication module under test to obtain the first serial number information of the communication module under test, and transmit the first serial number information to the control unit; When the communication module under test is in a communication state, the control unit obtains second serial number information of the communication module under test, and compares the second serial number information with the first serial number information to obtain a communication module information comparison result.

5. The device according to claim 2, characterized in that The main control module also includes: a high voltage generation module control interface connected to the control unit; The control unit is connected to the high voltage generation module via the high voltage generation module control interface.

6. The device according to claim 2, characterized in that Also includes: A control button in a low-voltage working area; the main control module also includes a key input interface connected to the control unit; the control unit is connected to the control button through the key input interface; the control button is used to start or terminate the withstand voltage test, and send the start information or termination information to the control unit.

7. The device according to claim 2, characterized in that Also includes: An acoustic and visual alarm unit in a low-voltage working area; the main control module also includes an alarm output interface connected to the control unit; the control unit is connected to the acoustic and visual alarm unit through the alarm output interface; the acoustic and visual alarm unit is used to output an acoustic and visual prompt signal under the control of the control unit, and the acoustic and visual prompt signal is used to prompt the operating status of the intelligent communication withstand voltage test device.

8. The device according to claim 1, characterized in that The interface unit control circuit module comprises: an interface unit control circuit, a first relay group and a second relay group; the interface unit control circuit is connected to the weak current terminal probe, and the first relay group and the second relay group are connected in parallel between the interface unit control circuit and the weak current terminal probe; The high-voltage test circuit comprises: a high-voltage input interface, a second relay group, a strong-current terminal probe and a weak-current terminal probe, wherein the high-voltage input interface is connected to the second relay group and the strong-current terminal probe, and the second relay group is connected to the weak-current terminal probe; The main control module is connected to the interface unit control circuit via the isolated communication link; under the control of the main control module, the interface unit control circuit controls the first relay group to be connected to the weak-current terminal probe and the second relay group to be disconnected from the weak-current terminal probe, so as to switch the communication module under test to the communication state, and controls the first relay group to be disconnected from the weak-current terminal probe and the second relay group to be connected to the weak-current terminal probe, so as to switch the communication module under test to the withstand voltage test state.

9. The device according to claim 1, characterized in that Also includes: Power supply module; The power supply module includes: a first power supply module, a second power supply module and an isolation transformer; The first power supply module is used to convert the external input voltage into a low-voltage working power supply to supply power to the modules in the low-voltage working area; The isolation transformer is connected to the second power supply module and is used for electrically isolating the external input voltage and converting it into a high-isolation working power supply through the second power supply module to power the test unit module.

10. The device according to claim 1, characterized in that It also includes an interlocking module in the low-voltage working area; the interlocking module is communicatively connected with the main control module; The interlocking module is used to perform a safety condition check on the intelligent communication withstand voltage test device before performing a withstand voltage test on the communication module under test, and to notify the main control module to allow the withstand voltage test when the safety condition check result is normal; The interlocking module is also used to monitor the operating status information of the intelligent communication withstand voltage test device when the communication module under test is in the withstand voltage test state, and control the intelligent communication withstand voltage test device to enter a protection state when the operating status information is abnormal.

11. The device according to claim 10, characterized in that The test unit module also includes a grating sensor; the grating sensor is used to detect whether there is foreign matter intrusion in the high-voltage working area, and send the foreign matter intrusion detection result to the interlocking module as the safety condition inspection result.

12. The device according to claim 1, characterized in that: When the communication module under test is in the communication state, the strong current terminals in the strong current terminal group of the communication module under test are disconnected, and the weak current terminals in the weak current terminal group are disconnected; When the communication module under test is in the withstand voltage test state, the strong current terminals in the strong current terminal group of the communication module under test are short-circuited, and the weak current terminals in the weak current terminal group are short-circuited; The main control module is used to obtain the withstand voltage test result of the communication module under test according to the high-voltage loop current value obtained from the current sensor when the communication module under test is in the withstand voltage test state.

13. The device according to claim 12, characterized in that After the withstand voltage test of the multiple communication modules under test is completed, the main control module is used to control the high voltage generating module to stop outputting the high voltage power supply, record the withstand voltage test results of the multiple communication modules under test, and control the test fixture to lift.

14. The device according to claim 13, characterized in that: Before controlling the test fixture to lift, the main control module is also used to: control the interface unit control circuit module to switch the communication module under test to the communication state again to verify whether the multiple communication modules under test are damaged in the voltage withstand test, and record the voltage withstand damage results of the multiple communication modules under test.

15. The device according to claim 14, characterized in that Also includes: A communication module in a low-voltage working area; the main control module is connected to the communication module, and the main control module sends the withstand voltage test result and / or the withstand voltage damage result to the communication module; The communication module transmits the withstand voltage test result and / or the withstand voltage damage result.

16. The device according to claim 15, characterized in that The main control module also includes a control unit and a communication module control interface connected to the control unit; the control unit is connected to the communication module via the communication module control interface.

17. A production management system, characterized in that: include: A control device, a production management server and an intelligent communication withstand voltage test device as claimed in any one of claims 1 to 16; The control device is in communication connection with the intelligent communication withstand voltage test device, and is used to send a withstand voltage test instruction to the intelligent communication withstand voltage test device, so as to control the intelligent communication withstand voltage test device to perform withstand voltage test on multiple communication modules under test; The control device is connected to the production management server and is used to upload the withstand voltage test result obtained from the intelligent communication withstand voltage test device to the production management server; The control device sends a test completion instruction to the intelligent communication withstand voltage test device to control the intelligent communication withstand voltage test device to release the multiple communication modules under test.

18. The system according to claim 17, characterized in that: When the interlocking module of the intelligent communication withstand voltage test device controls the intelligent communication withstand voltage test device to enter a protection state, the intelligent communication withstand voltage test device sends abnormal information to the control device, and the control device uploads the abnormal information to the production management server.

19. An intelligent communication withstand voltage test method, used for performing withstand voltage test on multiple communication modules under test, wherein the communication modules under test include a strong current terminal group and a weak current terminal group, characterized in that: The method comprises: The main control module controls the test fixture to fix multiple communication modules under test on the test base plate; The main control module controls the high-voltage generating module to output a high-voltage power supply with specified output parameters to the withstand voltage test interface matrix of the test base plate, so as to perform a withstand voltage test on the multiple communication modules under test, wherein the withstand voltage test interface matrix includes multiple withstand voltage test interface units, and the withstand voltage test interface unit includes: a high-voltage test loop and a current sensor, and the current sensor is connected to the high-voltage test loop; the high-voltage test loop includes: a high-voltage input interface, an interface unit control circuit module, a strong-current terminal probe and a weak-current terminal probe, and the high-voltage input interface connects the interface unit control circuit module and the strong-current terminal probe, and the interface unit control circuit module connects the weak-current terminal probe; the high-voltage input interfaces of the multiple withstand voltage test interface units are all connected to the high-voltage generating module in parallel; The main control module controls the interface unit control circuit module to switch the communication module under test between the withstand voltage test state and the communication state; when the communication module under test is in the communication state, the main control module communicates with the communication module under test; when the communication module under test is in the withstand voltage test state, the main control module reads the high-voltage loop current value of the current sensor on the high-voltage test loop, and obtains the withstand voltage test result of the communication module under test according to the high-voltage loop current value.

20. The method according to claim 19, characterized in that: Before executing the withstand voltage test, the interlocking module performs a safety condition check on the execution environment of the withstand voltage test, and when the safety condition check result is normal, notifies the main control module to allow the withstand voltage test to be executed.

21. The method according to claim 19, characterized in that Before performing the described voltage withstand test: The main control module controls the optical code scanning module to identify the identification code of the communication module under test to obtain the first serial number information of the communication module under test; The main control module controls the interface unit control circuit module to switch the communication module under test to a communication state, and obtains second serial number information from the communication module under test; The main control module compares the second serial number information with the first serial number information to obtain a communication module information comparison result.

22. The method according to claim 19, characterized in that The main control module controls the sound and light alarm unit to output a sound and light prompt signal, and the sound and light prompt signal is used to prompt the execution status of the withstand voltage test.

23. The method according to claim 19, characterized in that When the withstand voltage test is performed, the interlocking module monitors the execution status of the withstand voltage test, and enters a protection state when the execution status is abnormal.

24. The method according to claim 19, characterized in that After the voltage withstand test is completed, the main control module controls the high-voltage generating module to stop outputting the high-voltage power supply, records the voltage withstand test results of the multiple communication modules under test, encrypts the voltage withstand test results of the multiple communication modules under test and writes them into a local log, and controls the test fixture to lift up to release the multiple communication modules under test.

25. The method according to claim 24, characterized in that Before controlling the test fixture to lift, the main control module controls the interface unit control circuit module to switch the communication module under test to the communication state again, verifies whether the multiple communication modules under test are damaged in the voltage withstand test, and records the voltage withstand damage results of the multiple communication modules under test.

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