On-satellite cable network rapid acceptance inspection detection system and method for small satellite batch production

Abstract

The invention discloses an on-satellite cable network rapid acceptance inspection and detection system and method for small satellite batch production. The method comprises the following steps: automatically reading and converting an on-satellite cable network node table of a batch-produced satellite, quickly generating a cable test program which enables plugging operation to be as little as possible during test, establishing a ground adapter cable library adapted to the batch-produced satellite, connecting an on-satellite tested cable to a cable tester through a ground adapter cable, and testing the on-satellite tested cable through the ground adapter cable. An automatic cable tester is utilized to quickly and automatically complete batch conduction and insulation tests of a single cable and multiple branch cables on a satellite, various types of errors can be automatically judged and alarmed according to a set reference standard, and a cable detection report can be automatically generated after the tests and is used for analysis, management and storage of later batch-produced satellite cable data on the satellite. The problems of low acceptance inspection efficiency, high working intensity and high probability of missing inspection and error inspection of batch-produced satellite cable networks are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite onboard cables, and in particular to a system and method for rapid acceptance testing of onboard cable networks for batch production of small satellites. Background Art

[0002] The cables on satellites are branched in a mesh, with more than several thousand nodes. To ensure the safe and reliable use of cables on satellites, they must be inspected for conduction and insulation before use, so that unqualified products such as poor contact, poor insulation and assembly errors can be discovered and eliminated in a timely manner.

[0003] In the past, the acceptance inspection method for single-star cable networks was in the form of manual inspection, and the main tools used were multimeters, buzzers, etc., which relied on manual single-point conduction tests and insulation tests. The main disadvantages of this manual testing method are: the large number of single points and large errors cannot guarantee the accuracy of the test; the test results cannot be automatically saved and output; the use of megohmmeters and multimeters, adapter tools and other testing tools requires the cooperation of multiple people, and generally three testers are required to test a cable; especially for cable resistance tests with multiple branches, multiple cores, and different types of electrical connectors, point-by-point inspections are inefficient, the work intensity is high, and it is easy to cause missed inspections and wrong inspections.

[0004] With the emergence of large-scale satellite production models, the cable network acceptance inspection of mass-produced satellites also needs to greatly improve the inspection efficiency and inspection accuracy. The traditional manual cable inspection method can no longer meet the use requirements of mass-produced models. Due to some characteristics of small satellite mass-produced cables, the existing automatic cable inspection technology cannot be easily applied. Summary of the invention

[0005] The present invention provides a system and method for rapid acceptance testing of onboard cable networks for mass production of small satellites, which are used for acceptance of low-frequency cable networks on mass-produced satellites and for testing the conductivity and insulation performance of ground cables before they are installed on the satellites. This replaces the inefficient manual "pin-and-jack" testing method and improves the efficiency and accuracy of cable conductivity and insulation testing.

[0006] In the first aspect, a rapid acceptance and detection system for onboard cable networks for mass production of small satellites is provided, including a node table automatic conversion module, a ground transfer cable for testing, and a cable tester;

[0007] The node table automatic conversion module is used to automatically import the node table of the mass-produced satellite cable network, extract the cable code, cable name, electrical connector code, electrical connector type, and point relationship information, and then analyze whether the existing ground transfer cable library meets the test requirements of the tested cable based on the existing ground transfer cables and electrical connectors, select cables that meet the conditions for testing, and remove cables that do not meet the conditions. For the on-board cables that meet the test requirements, a list of ground transfer cables is quickly matched, and a plan for the use of ground transfer cables is formulated; the order of on-board cable test batches and the order and position of ground transfer cable plugging are automatically arranged; a list of ground transfer cable plugging positions and sequences is generated, and the converted program is exported;

[0008] The ground transfer cable includes a transfer cable, an electrical connector plug connected to the cable tester, and an electrical connector socket connected to the cable under test;

[0009] The cable tester is equipped with a low-voltage continuity test module and a high-voltage insulation test module. The test channel supports two-wire continuity test and insulation test, and is used to test "one-to-one" single cables and "one-to-many" and "many-to-many" branch cables. It has fault judgment and fault location functions, and automatically reports an error when the test result does not match the input file; it automatically generates cable continuity and insulation test reports.

[0010] In conjunction with the first aspect, in certain implementations of the first aspect, the node table automatic conversion module includes an electrical connector information library management module, a ground transfer cable library management module, a node table data parsing and importing module, and a test program exporting module;

[0011] The electrical connector information library management module defines and manages the electrical connector code, quantity, type, and pinhole position of the ground transfer cable;

[0012] The ground transfer cable library management module defines and manages the code, name, quantity, type, and end connector of the ground transfer cable;

[0013] The node table data parsing and importing module supports the import of satellite cable network nodes, and performs matching analysis and interpretation on the ground transfer cables required for satellite cable testing, determines whether the tested cables meet the test requirements, automatically arranges the satellite electrical test sequence and the ground transfer cable plugging sequence and position, and generates a list of ground transfer cable plugging positions and sequences;

[0014] The test program export module supports exporting the program as a whole or in batches after the node table is converted.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the node table data parsing and importing module extracts the standard batch-produced satellite cable network node table. After confirming the node table to be tested, the node table data parsing and importing module automatically decomposes the node table into single cables, generates a list, and is used to view the branch relationship of a single cable; determines whether the selected cable can be tested in parallel, and completes the screening function of the ground transfer cable; if there are untestable items in a certain cable, a report is generated in the window below the main interface, and the reasons for the untestability are explained; if the electrical connector model in the preparation work and the ground transfer cable in the library meet the test requirements, a test program is generated according to the design of the node table.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the principle of using the least test steps and utilizing the least number of ground transfer cable plugging and unplugging times is followed when generating a test program; in the process of matching the cable's electrical connector model and the number of ground transfer cables, if the ground transfer cable with the connector does not exist in the library or the number of ground transfer cables is insufficient, the cable cannot be tested at one time, thereby maximizing the automatic testing of the cable.

[0017] In combination with the first aspect, in certain implementations of the first aspect, in the case where there is no specified model of ground transfer cable, first generate a test program that removes the branch where the specified model of ground transfer cable is located and then perform a continuity test; after the test is completed, a dialog box pops up to ask whether to pause the test and perform a manual test or directly jump to the next test process. If a manual continuity test is selected, the system automatically pauses. After the manual test is completed, click Complete Manual Supplementary Test to continue the next step of the test.

[0018] In combination with the first aspect, in certain implementations of the first aspect, when the number of ground transfer cables is insufficient to be tested at one time, the test program is first written in sequence to complete the testable branches, and then the branches that cannot be completed are determined; the branch that cannot be tested at one time is ax, and first the ground transfer cable b0 with the electrical connector model as the starting end is selected; bx-i is the i-part electrical connector contained in the branch ax after removing the starting end; MN-1 is all the cables tested after removing the ground transfer cable at the starting end, and there are MN ground transfer cables; the following steps are executed in a loop: determine the matching of bx-i and MN-1, and derive Mi as the cable that matches bx-i in the library, and use Mi to test until the branch ax is tested completely.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the cable tester has the function of importing the program after receiving the node table conversion; the cable tester is used to set the test voltage, current, and time parameters, and perform cable continuity and insulation tests in groups and batches; and set the judgment standards and gate limits for the cable continuity and insulation tests, the cable tester automatically judges the test pass status, and alarms for erroneous results; the cable tester automatically generates a cable continuity and insulation test report, and stores the data to a specified location.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the electrical connector socket is selected according to the male and female corresponding sections of the on-board electrical connector, and the electrical connector plug is an ERNI type easy-to-plug electrical connector; the adapter cable, the electrical connector plug, and the electrical connector socket are welded to form a ground adapter cable; the cable under test is connected to the cable tester through the ground adapter cable according to the ground adapter cable plug-in position and sequence list generated by the node table automatic conversion module; all ground adapter cables are entered and archived in the ground adapter cable library in the node table automatic conversion module.

[0021] In a second aspect, a method for rapid acceptance testing of an onboard cable network for batch production of small satellites is provided, the method being applied to a system as described in any one of the implementations of the first aspect above, the method comprising:

[0022] The node table of the satellite cable network is converted into a test application through the node table information conversion module. The corresponding ground switching cable is selected according to the test program, and the connection between the cable tester and the cable under test is established. The cable tester performs automated tests on the conductivity and insulation performance of the cable under test in turn, automatically generates result reports, and completes the cable conductivity and insulation performance tests.

[0023] In conjunction with the second aspect, in some implementations of the second aspect, the method includes:

[0024] 1) According to the requirements of the design documents, check whether the appearance of the cables on the mass-produced satellites is intact, whether the pinholes of the electrical connectors are intact and free of excess materials, and whether the cable length and markings are correct;

[0025] 2) The node table information conversion module imports the node table of the mass-produced star cable, automatically analyzes and resolves whether the tested cable meets the test conditions and whether there is a corresponding ground transfer cable to support the test. Then, according to the model test requirements, the cable code participating in the test is selected; "one-to-one" single cable directly selects the tested cable code, and "one-to-many" and "many-to-many" branch cables select the tested cable branch code according to the branch;

[0026] 3) The node table information conversion module gives the number and type of ground transfer cables according to the selected test cables, and lists the codes of the transfer cables; specifies the plug-in position of the transfer cables of the tested cables, and specifies the test batch and plug-in sequence; the node table information conversion module automatically generates the transfer cable connection relationship table and the test cable test program;

[0027] 4) According to the test batch, connect the satellite cables of the first batch to the ground transfer cables one by one according to the transfer cable connection relationship table, and connect the ground transfer cables to the cable tester at the same time;

[0028] 5) Open the cable tester, import the generated cable test program into the cable tester, set the current and voltage test parameters, and set the judgment criteria for conduction and insulation tests;

[0029] 6) Start the continuity and insulation test of the first batch of test cables according to the test procedure. If the test fails, an alarm will be issued, and you can choose to stop the test or restart the test; after the test passes, a complete test report will be generated;

[0030] 7) After the first batch of on-board cable tests are completed, disconnect the on-board cable from the ground transfer cable, and disconnect the on-board cable from the ground transfer cable;

[0031] 8) According to the above steps 4)-7), test the subsequent batches of test cables one by one until all the test cables have completed the test;

[0032] 9) Disconnect the satellite cables and ground transfer cables participating in the last batch of tests, disconnect the satellite cables and ground transfer cables, and organize and store the ground transfer cables and satellite cables;

[0033] 10) Check the test report results, and after judging that there is no problem with the data, turn off the cable tester equipment.

[0034] Compared with the prior art, the solution provided by the present invention includes at least the following beneficial technical effects:

[0035] (1) The present invention provides a rapid acceptance test method for mass-produced satellite onboard cable networks, which solves the conduction and insulation test problems of mass-produced cable acceptance and improves cable testing efficiency.

[0036] (2) The node table automatic conversion module used in the present invention can analyze whether the existing ground transfer cable library meets the test requirements of the cable under test according to the existing ground transfer cables and electrical connectors, and match the usage list of the ground transfer cables for the on-board cables that meet the requirements. At the same time, according to the principle of minimizing the overall plug-in and unplug times and maximizing the batch tests, the on-board electrical test sequence and the plug-in sequence and plug-in position of the ground transfer cables are automatically arranged. Then a list of the plug-in and unplugging positions and sequences of the ground transfer cables is generated and the converted program is exported. Automated scheduling of test plans and optimization of test plans are achieved.

[0037] (3) The ground transfer cable uses ERNI type easy-to-plug electrical connector, which reduces the difficulty and time of operation.

[0038] (4) This method can expand the number of test channels and ground test cables according to the types of cables and electrical connectors under test, so as to meet the testing requirements of different quantities and types of mass-produced satellite cables.

[0039] (5) After the test, the cable continuity and insulation test report can be automatically generated as required and stored in a designated location to facilitate unified data management. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the cable testing process on mass-produced satellites.

[0041] Figure 2 This is a schematic diagram of the node table automatic conversion module principle.

[0042] Figure 3 This is a schematic diagram of the composition principle of the cable tester. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] The present invention provides a satellite cable network rapid acceptance and detection system for small satellite batch production, including a node table automatic conversion module, a ground transfer cable for testing, and a cable tester, which completes the satellite cable network acceptance and the conduction and insulation performance test of the ground cable before being put on the satellite. The test process of the satellite cable network rapid acceptance and detection system is as follows: Figure 1 shown.

[0045] The schematic diagram of the node table automatic conversion module is as follows: Figure 2As shown. The node table automatic conversion module can automatically import the node table of the mass-produced satellite cable network, extract information such as cable code, cable name, electrical connector code, electrical connector type, point relationship, etc., and then analyze whether the existing ground transfer cable library meets the test of the cable under test based on the existing ground transfer cables and electrical connectors. Cables that meet the conditions can be selected for testing, and cables that do not meet the conditions can be eliminated. For the on-board cables that meet the test requirements, a list of ground transfer cables can be quickly matched, and a plan for the use of ground transfer cables can be formulated. At the same time, according to the principle of minimizing the overall number of plug-in and unplugging times and maximizing batch tests, the order of on-board cable test batches and the plug-in order and plug-in position of the ground transfer cable are automatically arranged. Then a list of plug-in and unplugging positions and sequences of the ground transfer cables is generated and the converted program is exported.

[0046] The node table automatic conversion module may include an electrical connector information library management module, a ground transfer cable library management module, a node table data parsing and importing module, and a test program exporting module. The electrical connector information library management module may define and manage the electrical connector code, quantity, type, pinhole position and other information of the ground transfer cable. The ground transfer cable library management module may define and manage the code, name, quantity, type, end connector and other information of the ground transfer cable. The node table data parsing and importing module may support the import of on-board cable network nodes, and perform matching analysis and interpretation on the ground transfer cables required for on-board cable testing, determine whether the test of the cable under test is met, automatically arrange the on-board electrical test sequence and the ground transfer cable plug-in sequence and plug-in position, and generate a list of ground transfer cable plug-in and unplugging positions and sequences. The test program exporting module supports the export of the program as a whole or in batches after the node table conversion.

[0047] The specific working process and principle of the node table data parsing and importing module are described as follows. The node table data parsing and importing module extracts the node table of the standard batch production satellite cable network. After confirming the node table to be tested, the node table data parsing and importing module needs to automatically decompose the node table into a single cable, generate a list, and view the branch relationship of a single cable. Users can select a single or multiple cables or certain branches of a single cable on the list according to their own needs, and generate and save the corresponding test program.

[0048] Determine whether the selected cables can be tested in parallel and complete the screening function of the ground transfer cables. If there are untestable items in a cable, a report should be generated in the window below the main interface, and the reasons for the untestability should be explained. If the electrical connector model and the ground transfer cables in the ground transfer cable library in the preparation work can meet the selected set of cable test requirements, generate a test program according to the design of the node table.

[0049] When generating a test program, the principle of using the least test steps and the least number of ground transfer cables plugged and unplugged should be followed. If, during the process of matching the cable electrical connector model and the number of ground transfer cables, it is found that there is no ground transfer cable with this type of connector in the library or the number of ground transfer cables of this type is insufficient to meet the one-time test of the cable, the automatic test of the cable should be maximized.

[0050] There are two reasons why a complete test cannot be performed at one time. One is that there is no ground transfer cable with a certain type of electrical connector, and the other is that the number of ground transfer cables is insufficient. In order to maximize the automatic test, the above situations are handled as follows.

[0051] The first one is that if there is no ground transfer cable of a certain model, first generate a test program that removes the branch where the plug-in is located. For example, if there is a cable WX, and the electrical connector model of WX is Y4-7TK, if there is no ground transfer cable of model Y4-7TK in the cable library, remove the points that are connected to the plug-in when generating the test program. That is, only generate the test program for other plug-in relationships and then perform the continuity test. After the continuity relationship test except for the plug-in is completed, a dialog box pops up to ask whether to pause the test and perform manual testing or directly jump to the next test process. If you choose manual continuity testing, the system will automatically pause. After the manual test is completed, click Complete Manual Supplementary Testing and continue the test of the next step.

[0052] The second type is when the number of ground transfer cables is insufficient to be tested at one time. Assume a cable W01, which has AN branches and contains BN electrical connectors. The required ground transfer cables are MN. First, determine in sequence whether each branch can be tested completely at one time. Assuming that the number of branches that can be tested completely is CN, the test program is first written in sequence to complete the testable branches, and then determine the branches that cannot be completed. Assuming that the branch that cannot be tested at one time is ax, and the number of plug-ins in this branch is bX, first select the ground transfer cable b0 with the electrical connector model as the starting end in MN. bx-1 is the electrical connector contained in this branch after removing the starting end. MN-1 is to test all cables after removing the ground transfer cable at the starting end. First, determine the matching of bx-1 and MN-1, and obtain M1 as the cable matching bx-1 in the library. If bx-1>M1, the plug-in that cannot be tested in this branch is bx-2. Use M1 to test the testable items, and continue to determine the matching of bx-2 and MN-1 to obtain the ground transfer cable M2. The plug-in that cannot be tested in this branch is bx-3. Continue to determine the matching of bx-3 and MN-1 to obtain the ground transfer cable M3, and so on until a branch test is completed. This process can determine and guide the tester to perform step-by-step testing, prompting the extraction of ground transfer cables and the operation of test steps.

[0053] The ground transfer cable includes a transfer cable, an electrical connector plug (connection end with the cable tester), and an electrical connector socket (connection end with the cable under test). The electrical connector socket (connection end with the cable under test) is selected according to the corresponding male and female segments of the on-board electrical connector, and the electrical connector plug (connection end with the cable tester) uses an ERNI type easy-to-plug electrical connector. The transfer cable, electrical connector plug, and electrical connector socket are made into a ground transfer cable by welding. According to the node table automatic conversion module, a list of ground transfer cable plug-in and pull-out positions and sequences is generated, and the cables under test are grouped and connected to the cable tester host through ground transfer cables in batches for testing. All ground transfer cables are entered and archived in the ground transfer cable library in the node table automatic conversion module. According to the characteristics of the mass-produced satellite cable network, the ground electrical connectors that are used more frequently are analyzed to be more than 80 types of electrical connectors such as J14A, J36A, J6W, MM, J30J, CX2, Y27, and J599, and more than 500 cables including the above-mentioned electrical connector types are configured to support mass-produced satellite cable testing.

[0054] The cable tester includes a control computer and accessories, a cable tester host and accessories, and cable testing software. Figure 3 . The cable tester host is equipped with a low-voltage continuity test module and a high-voltage insulation test module. The test channel is not less than 4096 points, which can be expanded according to the test task. It supports two-wire continuity test and insulation test, can test "one-to-one" single cable and "one-to-many" and "many-to-many" branch cables, has fault judgment and fault location functions, and the computer automatically reports an error when the test result does not match the input file; it can automatically generate a cable continuity and insulation test report. During the test, the cable tester has the function of importing the program after the conversion of the receiving node table. The operator sets the test voltage, current, time and other parameters according to the test procedure and test requirements, and performs cable continuity and insulation tests in groups and batches. And set the judgment standard and gate limit of the cable continuity and insulation test. The cable tester can automatically judge the test pass and alarm for the wrong result. Finally, the cable continuity and insulation test report is automatically generated, and the data is stored in the specified location. The control computer is connected to the cable tester host to drive the cable test program and store the test result report after the test. The cable tester host is used to perform low-voltage continuity test and high-voltage insulation test of the cable. The cable test software is used in the cable test process to set test voltage, current and other parameters, set the judgment standard of cable continuity and insulation test, and alarm for wrong results. It can also be set to automatically generate cable continuity and insulation test reports.

[0055] The present invention is based on the above-mentioned on-board cable network rapid acceptance detection system for small satellite batch production, and provides an on-board cable network rapid acceptance detection method for small satellite batch production. The on-board cable network node table is converted into a test application program through a node table information conversion module, and the required corresponding ground transfer cable is selected according to the test program, and the connection between the cable tester and the cable under test is established, that is, the test channel on the cable tester has been connected to one end of the ground transfer cable according to the corresponding point, and the other end of the ground transfer cable is connected to the on-board cable under test. The cable tester performs automated tests on the conduction and insulation performance of the tested cable in turn, and the tester judges the cable conduction and insulation compliance according to the test result prompts, and the test software automatically generates a result report to complete the cable conduction and insulation performance test. The specific steps are as follows.

[0056] 1) In accordance with the requirements of the design documents, check whether the appearance of the cables on the mass-produced satellites is intact, whether the pinholes of the electrical connectors are intact and free of excess materials, and whether the cable length and markings are correct.

[0057] 2) The node table information conversion module imports the node table of the mass-produced star cable, automatically analyzes and resolves whether the tested cable meets the test conditions and whether there is a corresponding ground transfer cable to support the test. Then, according to the model test requirements, the cable code that needs to be tested is selected. "One-to-one" single cable can directly select the tested cable code, and "one-to-many" and "many-to-many" branch cables can select the tested cable branch code by branch.

[0058] First, the on-board cable network node table of the mass-produced satellite is imported into the node table information conversion module. The program has a ground transfer cable and electrical connector type library. The node table information conversion module can automatically analyze the cable quantity, specifications, and electrical connector quantity and specifications of the ground transfer cables that match the on-board cable connection according to the requirements of the on-board cable test, and analyze whether the ground transfer cables in the library meet the requirements and support the test. And match the use list of the ground transfer cables.

[0059] 3) The node table information conversion module gives the number and type of ground transfer cables required according to the selected test cables, and lists the codes of the required transfer cables. At the same time, it specifies the plug-in position of the transfer cables of the tested cables, and specifies the test batch and plug-in sequence. The node table information conversion module automatically generates the transfer cable connection relationship table and the test cable test program.

[0060] 4) According to the test batch, connect the first batch of onboard cables to the ground transfer cables one by one according to the transfer cable connection relationship table, and connect the ground transfer cables to the cable tester at the same time.

[0061] 5) Open the cable tester, import the generated cable test program into the cable tester, set the test parameters such as current and voltage, and set the judgment criteria for conduction and insulation tests.

[0062] The test program of the participating cables is imported into the cable tester to generate a batch test program. After setting the test parameters and judgment standards, the cable continuity and insulation tests are carried out in batches according to the test program. The system can automatically judge the qualified status and alarm for wrong results. Finally, it automatically generates the cable continuity and insulation test report and stores the data in the specified location.

[0063] 6) According to the test procedure, the first batch of test cables will be tested for continuity and insulation at once. If the test fails, an alarm will be issued, and you can choose to stop the test or restart the test. After the test is passed, a complete test report can be generated, and the report output is suitable for Excel, TXT, PDF and other formats.

[0064] 7) After the first batch of on-board cable tests are completed, disconnect the on-board cable from the ground transfer cable, and disconnect the on-board cable from the ground transfer cable.

[0065] 8) Follow the above steps 4)-7) to test the subsequent batches of test cables one by one until all the test cables have completed the test.

[0066] 9) Disconnect the on-board cables and ground transfer cables participating in the last batch of tests, disconnect the on-board cables and ground transfer cables, and organize and store the ground transfer cables and on-board cables.

[0067] 10) Check the test report results, and after judging that there is no problem with the data, turn off the cable tester equipment.

[0068] In summary, the present invention proposes a system and method for rapid acceptance inspection of onboard cable networks for mass production of small satellites. By automatically interpreting and converting the node table of the onboard cable network of mass-produced satellites, a cable test program is quickly generated to minimize plug-in and unplug operations during testing. At the same time, a ground transfer cable library suitable for mass-produced satellites is established, and the onboard tested cable is connected to the cable tester through the ground transfer cable. The automated cable tester is used to quickly and automatically complete batch conduction and insulation tests of single cables and multi-branch cables on the satellite, and can automatically judge various types of errors and alarm according to the set reference standards. After the test, a cable inspection report can be automatically generated for analysis, management and storage of onboard cable data of mass-produced satellites in the later stage. The problem of low efficiency and high work intensity in acceptance inspection of mass-produced satellite cable networks, which is easy to cause missed inspections and wrong inspections, is solved.

[0069] Although the present invention is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims of the present invention.

Claims

1. A rapid acceptance and detection system for onboard cable networks for small satellite batch production, characterized in that: It includes node table automatic conversion module, ground transfer cable for testing, and cable tester; The node table automatic conversion module is used to automatically import the node table of the mass-produced satellite cable network, extract the cable code, cable name, electrical connector code, electrical connector type, and point relationship information, and then analyze whether the existing ground transfer cable library meets the test of the tested cable based on the existing ground transfer cables and electrical connectors, select cables that meet the conditions for testing, remove cables that do not meet the conditions, and quickly match the on-board cables that meet the test requirements with the use list of ground transfer cables, and formulate a use plan for ground transfer cables; Automatically arrange the on-board cable test batch sequence and the ground transfer cable plugging sequence and plugging position; Generate a list of ground transfer cable plug-in and unplug positions and sequences and export the converted program; The ground transfer cable includes a transfer cable, an electrical connector plug connected to the cable tester, and an electrical connector socket connected to the cable under test; The cable tester is equipped with a low-voltage continuity test module and a high-voltage insulation test module; The test channel supports two-wire continuity test and insulation test, and is used to test "one-to-one" single cable and "one-to-many" and "many-to-many" branch cables. It has the functions of fault judgment and fault location, and automatically reports an error when the test result does not match the input file; it automatically generates cable continuity and insulation test reports.

2. The system according to claim 1, characterized in that The node table automatic conversion module includes an electrical connector information library management module, a ground transfer cable library management module, a node table data parsing and importing module, and a test program exporting module; The electrical connector information library management module defines and manages the electrical connector code, quantity, type, and pinhole position of the ground transfer cable; The ground transfer cable library management module defines and manages the code, name, quantity, type, and end connector of the ground transfer cable; The node table data parsing and importing module supports the import of satellite cable network nodes, and performs matching analysis and interpretation on the ground transfer cables required for satellite cable testing, determines whether the tested cables meet the test requirements, automatically arranges the satellite electrical test sequence and the ground transfer cable plugging sequence and position, and generates a list of ground transfer cable plugging positions and sequences; The test program export module supports exporting the program as a whole or in batches after the node table is converted.

3. The system according to claim 2, characterized in that The node table data parsing and importing module extracts the node table of the standard mass-produced satellite cable network. After confirming the node table for the test, the node table data parsing and importing module automatically decomposes the node table into single cables, generates a list, and is used to view the branch relationship of a single cable; Determine whether the selected cables can be tested in parallel, and complete the screening function of ground transfer cables; if there are untestable items in a cable, a report will be generated in the window below the main interface, and the reasons for untestability will be explained; If the electrical connector model and the ground transfer cable in the ground transfer cable library in the preparation work meet the test requirements, generate the test program according to the design of the node table.

4. The system according to claim 3, characterized in that When generating the test program, the principle of using the least test steps and utilizing the least number of ground transfer cables plugging and unplugging is followed; in the process of matching the cable's electrical connector model and the number of ground transfer cables, if the ground transfer cable with the connector does not exist in the library or the number of ground transfer cables is insufficient, the cable cannot be tested at one time, thereby maximizing the automatic testing of the cable.

5. The system according to claim 4, characterized in that In the case where there is no specified model of ground transfer cable, first generate a test program that removes the branch where the specified model of ground transfer cable is located, and then perform a continuity test; after the test is completed, a dialog box pops up to ask whether to pause the test and perform a manual test or directly jump to the next test process. If a manual continuity test is selected, the system automatically pauses. After the manual test is completed, click Complete Manual Supplementary Test to continue the test of the next step.

6. The system according to claim 4, characterized in that In the case where the number of ground transfer cables is insufficient to complete the test at one time, the test program is first written to complete the testable branches in sequence, and then the branches that cannot be completed are determined; The branch that cannot be tested in one go is ax. First, select the ground transfer cable b0 with the electrical connector model as the starting end; bx-i is the i-part electrical connector contained in the branch ax after removing the starting end; MN-1 is to test all cables after removing the ground transfer cable at the starting end, and there are MN ground transfer cables; loop the following steps: determine the matching of bx-i and MN-1, and obtain Mi as the cable that matches bx-i in the library, and use Mi to test until the branch ax is tested completely.

7. The system according to claim 1, characterized in that The cable tester has the function of importing the program after receiving the node table conversion; the cable tester is used to set the test voltage, current, and time parameters, and perform cable continuity and insulation tests in groups and batches; and set the judgment standards and gate limits for cable continuity and insulation tests. The cable tester automatically judges the test pass status and alarms for erroneous results; the cable tester automatically generates cable continuity and insulation test reports, and stores the data to the specified location.

8. The system according to claim 1, characterized in that The electrical connector socket is selected according to the corresponding male and female sections of the on-board electrical connector, and the electrical connector plug is an ERNI type easy-to-plug electrical connector; the adapter cable, electrical connector plug, and electrical connector socket are welded to form a ground adapter cable; according to the ground adapter cable plug-in and unplug position and sequence list generated by the node table automatic conversion module, the cable under test is connected to the cable tester through the ground adapter cable; All ground transfer cables are entered and archived in the ground transfer cable library in the node table automatic conversion module.

9. A method for rapid acceptance testing of onboard cable networks for mass production of small satellites, characterized in that: The method is applied to the system according to any one of claims 1 to 7, and the method comprises: The node table of the satellite cable network is converted into a test application through the node table information conversion module. The corresponding ground switching cable is selected according to the test program, and the connection between the cable tester and the cable under test is established. The cable tester performs automated tests on the conductivity and insulation performance of the cable under test in turn, automatically generates result reports, and completes the cable conductivity and insulation performance tests.

10. The method according to claim 9, characterized in that The method comprises: 1) According to the requirements of the design documents, check whether the appearance of the cables on the mass-produced satellites is intact, whether the pinholes of the electrical connectors are intact and free of excess materials, and whether the cable length and markings are correct; 2) The node table information conversion module imports the node table of the mass-produced Xingxing cable, automatically analyzes and resolves whether the tested cable meets the test conditions and whether there is a corresponding ground transfer cable to support the test. Then, according to the model test requirements, the cable code participating in the test is selected; "one-to-one" single cable directly selects the tested cable code, "one-to-many" and "many-to-many" branch cables select the tested cable branch code according to the branch; 3) The node table information conversion module gives the number and type of ground transfer cables according to the selected test cables, and lists the codes of the transfer cables; specifies the plug-in position of the transfer cables of the tested cables, and specifies the test batch and plug-in sequence; the node table information conversion module automatically generates the transfer cable connection relationship table and the test cable test program; 4) According to the test batch, connect the satellite cables of the first batch to the ground transfer cables one by one according to the transfer cable connection relationship table, and connect the ground transfer cables to the cable tester at the same time; 5) Open the cable tester, import the generated cable test program into the cable tester, set the current and voltage test parameters, and set the judgment criteria for conduction and insulation tests; 6) Start the continuity and insulation test of the first batch of test cables according to the test procedure. If the test fails, an alarm will be issued, and you can choose to stop the test or restart the test; after the test passes, a complete test report will be generated; 7) After the first batch of on-board cable tests are completed, disconnect the on-board cable from the ground transfer cable, and disconnect the on-board cable from the ground transfer cable; 8) According to the above steps 4)-7), test the subsequent batches of test cables one by one until all the test cables have completed the test; 9) Disconnect the satellite cables and ground transfer cables participating in the last batch of tests, disconnect the satellite cables and ground transfer cables, and organize and store the ground transfer cables and satellite cables; 10) Check the test report results, and after judging that there is no problem with the data, turn off the cable tester equipment.

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