General integrated electrical system test system and method for carrier rocket

Abstract

The invention provides a test system and method for a general integrated electrical system of a carrier rocket, and relates to the technical field of test launch of carrier rockets, and a single test device is used for testing initiating explosive devices and cables on the carrier rocket; the single test equipment comprises a low-voltage high-precision power supply and a wide-voltage high-precision power supply; the wide-voltage high-precision power supply comprises a high-voltage module and a low-voltage module; when a single test device is used for testing the sequential access resistance of the initiating explosive device on the carrier rocket, a low-voltage high-precision power supply is selected; when a single test device is used for testing the on-rocket cable of the carrier rocket and testing conduction of the on-rocket cable of the carrier rocket, a low-voltage module in a wide-voltage high-precision power supply is selected; when insulation of a cable on a carrier rocket is tested, a high-voltage module in a wide-voltage high-precision power supply is selected. According to the invention, a single ground test device can test a time sequence access resistance value of a launch vehicle initiating explosive device and a cable conduction insulation test.

Description

Technical Field

[0001] The present invention relates to the field of launch vehicle testing and launch technology, and in particular to a universal integrated electrical system testing system and method for a launch vehicle. Background Art

[0002] The ground test equipment for launch vehicles is relatively complex, making it inconvenient to transport, self-check, and test the equipment under field test conditions. As the number of test tasks increases, the demand for integrated test equipment also increases. Currently, the timing path resistance test for onboard pyrotechnics is completed by ground-based path resistance test equipment, while the cable continuity insulation test is completed by ground-based cable continuity insulation test equipment. The voltages required for the timing path resistance test and the cable continuity insulation test are different. The pyrotechnic timing path resistance test voltage is 28V, while the cable continuity insulation test voltage is 4V, while the cable insulation test voltage is 50V to 500V.

[0003] The present invention provides a universal integrated electrical system testing method and system for launch vehicles, which integrates the timing path resistance test equipment and cable conductivity insulation test equipment on the launch vehicle. This can reduce equipment production costs, facilitate portability, improve test efficiency, shorten the launch vehicle test and launch process cycle, and reduce cost investment. Summary of the Invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a universal integrated electrical system testing system for launch vehicles.

[0005] A universal integrated electrical system test system for a launch vehicle provided by the present invention comprises: The rocket pyrotechnics test module is used to test the timing path resistance of the pyrotechnics on the launch vehicle using a single test device; Cable test module, used to test the conductivity and insulation of cables on launch vehicles using a single test device; The single test equipment includes a low-voltage high-precision power supply and a wide-voltage high-precision power supply; the wide-voltage high-precision power supply includes a high-voltage module and a low-voltage module; When using a single test device to test the resistance of the timing path of pyrotechnics on a launch vehicle, a low-voltage, high-precision power supply should be selected for testing; When using a single test device to test the conductivity and insulation of cables on a carrier rocket, when testing the conductivity of cables on a carrier rocket, select the low-voltage module in the wide-voltage and high-precision power supply for testing; when testing the insulation of cables on a carrier rocket, select the high-voltage module in the wide-voltage and high-precision power supply for testing.

[0006] Preferably, when testing the resistance of the timing path of the pyrotechnic device on the launch vehicle, the test signal interface of the single test device is connected to the cable under test through the connecting cable to realize the test; When the conductivity and insulation of cables on a carrier rocket are tested, the test signal interface of the single test device is connected to the cable under test to realize the test.

[0007] Preferably, the use of a single test device to test the pyrotechnics and cables on the carrier rocket includes: switching the low-voltage high-precision power supply or the wide-voltage high-precision power supply of the single test device through a double-pole double-throw switch to achieve testing of the pyrotechnics or cables on the carrier rocket.

[0008] Preferably, when a single test device is used to test the cables on a carrier rocket, the low-voltage module or high-voltage module in the wide-voltage and high-precision power supply is switched by a relay to test the conductivity or insulation of the cables on the carrier rocket.

[0009] Preferably, when using a single test device to test the resistance of the timing path of the pyrotechnic device on the carrier rocket, selecting a low-voltage high-precision power supply for testing includes: The main control unit selects the object to be measured by controlling the switch matrix unit, and connects the low-voltage, high-precision power supply and the data acquisition unit to the corresponding object to be measured; the current circuit current value is collected by the data acquisition unit, and the collected current circuit current value is transmitted to the main control unit, and the main control unit uses Ohm's law to calculate the resistance value.

[0010] Preferably, when testing the continuity of cables on a carrier rocket, a low-voltage module in a wide-voltage, high-precision power supply is selected for testing, including: the main control unit controls the switch matrix unit to connect a first measuring point, connects the low-voltage module and the data acquisition unit to a corresponding object under test, collects a current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit; the main control unit calculates the resistance value using Ohm's law, compares the resistance value with the required value of the input configuration file, and determines whether the cable is in a conductive state; When testing the insulation of cables on a carrier rocket, a high-voltage module in a wide-voltage, high-precision power supply is selected for testing, including: a main control unit controls a switch matrix unit to connect a first measuring point, connects the high-voltage module and a data acquisition unit to a corresponding object under test, collects a current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit. The main control unit calculates the resistance value using Ohm's law, compares it with the required value of the input configuration file, and determines whether the cable is in an insulated state.

[0011] A general integrated electrical system testing method for a launch vehicle provided by the present invention includes: Step S1: using a single test device to test the resistance of the timing path of the pyrotechnic device on the carrier rocket; Step S2: Using a single test device to test the conductivity and insulation of cables on the carrier rocket; The single test equipment includes a low-voltage high-precision power supply and a wide-voltage high-precision power supply; the wide-voltage high-precision power supply includes a high-voltage module and a low-voltage module; When using a single test device to test the resistance of the timing path of pyrotechnics on a launch vehicle, a low-voltage, high-precision power supply should be selected for testing; When using a single test device to test the cables on a carrier rocket, when testing the conductivity of the cables on the carrier rocket, select the low-voltage module in the wide-voltage and high-precision power supply for testing; when testing the insulation of the cables on the carrier rocket, select the high-voltage module in the wide-voltage and high-precision power supply for testing.

[0012] Preferably, when testing the resistance of the timing path of the pyrotechnic device on the launch vehicle, the test signal interface of the single test device is connected to the cable under test through the connecting cable to realize the test; When the conductivity and insulation of cables on a carrier rocket are tested, the test signal interface of the single test device is connected to the cable under test to realize the test.

[0013] Preferably, the use of a single test device to test the pyrotechnics and cables on the carrier rocket includes: switching the low-voltage high-precision power supply or the wide-voltage high-precision power supply of the single test device through a double-pole double-throw switch to achieve testing of the pyrotechnics or cables on the carrier rocket.

[0014] Preferably, when a single test device is used to test the cables on a carrier rocket, the low-voltage module or high-voltage module in the wide-voltage and high-precision power supply is switched by a relay to test the conductivity or insulation of the cables on the carrier rocket.

[0015] Preferably, when a single test device is used to test the resistance of a timing path of an pyrotechnic device on a carrier rocket, a low-voltage, high-precision power supply is selected for testing, including: a main control unit selects a test object by controlling a switch matrix unit, and connects the low-voltage, high-precision power supply and a data acquisition unit to the corresponding test object; the data acquisition unit collects a current circuit current value, and transmits the collected current circuit current value to the main control unit, and the main control unit calculates the resistance value by using Ohm's law; When testing the continuity of cables on a launch vehicle, the low-voltage module in the wide-voltage, high-precision power supply is selected for testing, including: the main control unit controls the switch matrix unit to connect to the first measuring point, connects the low-voltage module and the data acquisition unit to the corresponding measured object, collects the current value of the circuit through the data acquisition unit, and transmits the collected current value of the circuit to the main control unit. The main control unit calculates the resistance value using Ohm's law, compares it with the required value of the input configuration file, and determines whether the cable is in a conductive state; When testing the insulation of cables on a carrier rocket, a high-voltage module in a wide-voltage, high-precision power supply is selected for testing, including: a main control unit controls a switch matrix unit to connect a first measuring point, connects the high-voltage module and a data acquisition unit to a corresponding object under test, collects a current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit. The main control unit calculates the resistance value using Ohm's law, compares it with the required value of the input configuration file, and determines whether the cable is in an insulated state.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can achieve the goal of testing the resistance of the timing path of launch vehicle pyrotechnics and the continuity and insulation of cables by a single ground test equipment; 2. The path resistance test and cable continuity and insulation test of the present invention are physically isolated except for the shared switch. The path resistance test part independently completes the on-arrow timing path resistance test, without introducing high voltage from the cable test function extension part, thus ensuring the safety of the test process. 3. Aiming at the functional requirements of important application scenarios, this invention standardizes and integrates launch vehicle ground test equipment. The product adopts a modular design to facilitate daily maintenance. It comprehensively considers various functional requirements and external interface requirements, and adopts an integrated design approach, which not only effectively reduces system design costs but also enhances system compatibility and reliability. 4. The present invention includes a timing path resistance test module and a cable test function expansion module, which solves the problems of poor matching, low versatility and low degree of integration of path resistance test and cable test equipment of different models of launch vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 This is a schematic diagram of the universal integrated electrical system test system for launch vehicles.

[0018] Figure 2 This is a schematic diagram of the structural design of the ground comprehensive tester.

[0019] Figure 3 This is a schematic diagram of the test component integration of the ground integrated tester. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0021] Example 1 A universal integrated electrical system test system for a launch vehicle provided by the present invention comprises: Use a single test device to test pyrotechnics and cables on launch vehicles; The single test equipment includes a low-voltage high-precision power supply and a wide-voltage high-precision power supply; the wide-voltage high-precision power supply includes a high-voltage module and a low-voltage module; When using a single test device to test the resistance of the timing path of pyrotechnics on a launch vehicle, a low-voltage, high-precision power supply should be selected for testing; When using a single test device to test the cables on a carrier rocket, when testing the conductivity of the cables on the carrier rocket, select the low-voltage module in the wide-voltage and high-precision power supply for testing; when testing the insulation of the cables on the carrier rocket, select the high-voltage module in the wide-voltage and high-precision power supply for testing.

[0022] When testing the resistance of the timing path of the pyrotechnics on the launch vehicle, the test signal interface of the single test device is connected to the cable under test through the connecting cable to realize the test; When the conductivity and insulation of cables on a carrier rocket are tested, the test signal interface of the single test device is connected to the cable under test to realize the test.

[0023] Among them, the use of a single test device to test the pyrotechnics and cables on the carrier rocket includes: switching the low-voltage high-precision power supply or wide-voltage high-precision power supply of the single test device through a double-pole double-throw switch to realize the testing of the pyrotechnics or cables on the carrier rocket.

[0024] Among them, when using a single test device to test the cables on the carrier rocket, the low-voltage module or high-voltage module in the wide-voltage and high-precision power supply is switched by a relay to test the conductivity or insulation of the cables on the carrier rocket.

[0025] When a single test device is used to test the pyrotechnics on a carrier rocket, or when the resistance of the timing path on the carrier rocket is tested, a low-voltage, high-precision power supply is selected for testing, including: The main control unit selects the object to be measured by controlling the switch matrix unit, and connects the low-voltage, high-precision power supply and the data acquisition unit to the corresponding object to be measured; the current circuit current value is collected by the data acquisition unit, and the collected current circuit current value is transmitted to the main control unit, and the main control unit uses Ohm's law to calculate the resistance value.

[0026] When testing the continuity of cables on a launch vehicle, a low-voltage module in a wide-voltage, high-precision power supply is selected for testing, including: the main control unit controls the switch matrix unit to connect the first measuring point, connects the low-voltage module and the data acquisition unit to the corresponding object under test, collects the current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit. The main control unit calculates the resistance value using Ohm's law, compares it with the required value of the input configuration file, and determines whether the cable is in a conductive state; Among them, when testing the insulation of the cables on the carrier rocket, the high-voltage module in the wide-voltage and high-precision power supply is selected for testing, including: the main control unit connects the first measuring point by controlling the switch matrix unit, connects the high-voltage module and the data acquisition unit to the corresponding object under test, collects the current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit. The main control unit uses Ohm's law to calculate the resistance value, compares it with the required value of the input configuration file, and determines whether the cable is in an insulated state.

[0027] The present invention also provides a universal integrated electrical system testing system for launch vehicles. The universal integrated electrical system testing system for launch vehicles can be implemented by executing the process steps of the universal integrated electrical system testing method for launch vehicles, that is, those skilled in the art can understand the universal integrated electrical system testing method for launch vehicles as a preferred implementation of the universal integrated electrical system testing system for launch vehicles.

[0028] Example 2 Example 2 is a preferred example of Example 1 According to the present invention, a universal integrated electrical system test system for a launch vehicle is provided. Figure 1 As shown, it includes: using a ground comprehensive tester to test the resistance of the timing path on the carrier rocket and the conductivity and insulation of the cables on the rocket.

[0029] like Figure 2As shown, the front of the ground integrated tester chassis is a display screen, and the left panel is the main control interface, including a start button and a USB3.0 interface for connecting a mouse, keyboard and other peripherals. The right panel is a signal interface, including a power input interface and a signal test interface. The test interface is 2 J599 / 20FJ35PN-H sockets (codenamed X1, X2) and 1 J36A socket (codenamed X3). Both X1 and X2 are 128-way sockets. When performing a continuity insulation test, the cable can be directly plugged into the test signal interface of the device for testing. When performing a path resistance test, a transfer cable needs to be connected to the user's test cable for testing.

[0030] Specifically, the entire cable is tested for conductivity and insulation by plugging and unplugging. The device can output 4V / 100V / 500V voltages to perform continuity and insulation tests on 256 cables, including insulation tests to ground. 4V corresponds to low voltage and is used for cable continuity testing, while 100V and 500V correspond to high voltage and are used for cable insulation testing.

[0031] like Figure 3 As shown, the ground-based integrated tester is designed with a double-pole double-throw switch for switching the power supply unit to be used. When the switch is set to the closed state, the power supply unit is switched. At the same time, the status acquisition unit determines whether the switch is switched successfully. Only after the switch is confirmed to be switched successfully, the user is allowed to perform the corresponding test.

[0032] By updating the channel parameter configuration and using adapter cables or cable adapter boxes to achieve cable performance testing, the requirements for testing different types of cables can be met.

[0033] Conductivity and insulation testing of arrow cables (i.e., performance testing of arrow cables) includes: Configure and manage the relevant information of the test cable (i.e. the object under test).

[0034] Cable continuity test: Power on the cables one by one and automatically determine whether the tested cables have short circuit, open circuit, miswiring and other faults based on the test resistance value.

[0035] Cable insulation test automatically completes multi-point insulation performance test, quickly tests the insulation resistance between wires and between wires and shell, and determines the cable insulation condition based on the test resistance value.

[0036] The test software generates a test report based on the test results.

[0037] Timing path resistance test includes: In this embodiment, taking the pyrotechnic device test as an example, the implementation steps are as follows: Manually turn the double-pole double-throw switch to switch to the low-voltage high-precision power supply. The state acquisition unit collects the state of the double-pole double-throw switch to determine whether the switch is switched to the low-voltage high-precision power supply state.

[0038] The object to be tested is connected to the ground integrated tester through the external interface, that is, connected to the internal switch matrix unit of the ground integrated tester.

[0039] The main control unit connects the first measuring point by controlling the switch matrix unit (closing the corresponding cross relay).

[0040] The software automatically connects the low-voltage, high-precision power supply and data acquisition unit to the corresponding unit switch matrix unit.

[0041] A low-voltage, high-precision power supply applies voltage to the object being measured, and current is generated in the circuit.

[0042] The data acquisition unit collects the circuit current value, and the data is summarized to the main control unit, which calculates the resistance value using Ohm's law.

[0043] The main control unit switches to the next measuring point by controlling the switch matrix unit (closing the corresponding cross relay), repeating the above steps to measure all the points to be measured in sequence.

[0044] The cable continuity test is implemented as follows: Connecting the object under test to the external interface of the ground integrated tester actually connects the object under test to the switch matrix unit inside the ground integrated tester.

[0045] Manually dial the double-pole double-throw switch on the ground integrated tester to switch the switch to the wide-voltage high-precision power supply end. The state of the double-pole double-throw switch is collected through the state acquisition unit to determine whether the switch is switched to the wide-voltage high-precision power supply state. If the state meets the test requirements, the cable continuity test can be performed.

[0046] When performing a cable continuity test, according to the continuity test software instructions, select the low-voltage module of the wide-voltage and high-precision power supply corresponding to the relay action.

[0047] Connect the low voltage module and data acquisition unit to the switch matrix unit.

[0048] The main control unit connects the first measuring point by controlling the switch matrix unit (closing the corresponding cross relay).

[0049] The low-voltage module applies voltage to the object being measured, and current is generated in the circuit.

[0050] The data acquisition unit collects the collected current values ​​and sends them to the main control unit. The main control unit calculates the resistance value using Ohm's law (R=U / I) and compares it with the value required by the input configuration file (for example, the configuration file stipulates that the resistance value for judging cable continuity is less than 10 ohms) to determine whether the cable is in a conductive state.

[0051] The main control unit switches to the next measuring point by controlling the switch matrix unit (closing the corresponding cross relay).

[0052] Repeat the above steps to measure all the points to be measured in sequence, and finally generate a report for all the measurement points.

[0053] The steps to implement cable insulation testing are as follows: Connecting the object under test to the external interface of the ground integrated tester actually connects the object under test to the switch matrix unit inside the ground integrated tester.

[0054] Manually dial the double-pole double-throw switch on the ground integrated tester to switch the switch to the wide-voltage high-precision power supply end. The state of the double-pole double-throw switch is collected through the state acquisition unit to determine whether the switch is switched to the wide-voltage high-precision power supply state. If the state meets the test requirements, the cable continuity test can be performed.

[0055] When conducting cable insulation testing, according to the insulation test software instructions, the high-voltage module of the corresponding relay action is selected with a wide-voltage and high-precision power supply.

[0056] Connect the high voltage module and data acquisition unit to the switch matrix unit.

[0057] The main control unit connects the first measuring point by controlling the switch matrix unit (closing the corresponding cross relay).

[0058] The high voltage module applies voltage to the object being measured, and current is generated in the circuit.

[0059] The data acquisition unit collects the collected current values ​​and sends them to the main control unit. The main control unit calculates the resistance value using Ohm's law (R=U / I) and compares it with the required value in the input configuration file (for example, the configuration file stipulates that the resistance value for judging cable insulation is: greater than 1000 ohms) to determine whether the cable is insulated.

[0060] The main control unit switches to the next measuring point by controlling the switch matrix unit (closing the corresponding cross relay).

[0061] Repeat the above steps to measure all the points to be measured in sequence, and finally generate a report for all the measurement points.

[0062] Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, and units provided by the present invention in purely computer-readable program code, it is entirely possible to implement the same functions of the system and its various devices, modules, and units provided by the present invention in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; the devices, modules, and units for implementing various functions can also be considered as both software modules implementing the method and structures within the hardware component.

[0063] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A universal integrated electrical system test system for a launch vehicle, characterized in that: include: The rocket pyrotechnics test module is used to test the resistance of the timing path of the pyrotechnics on the launch vehicle using a single test device; Cable test module, used to test the conductivity and insulation of cables on launch vehicles using a single test device; The single test equipment includes a low-voltage high-precision power supply and a wide-voltage high-precision power supply; the wide-voltage high-precision power supply includes a high-voltage module and a low-voltage module; When using a single test device to test the resistance of the timing path of the pyrotechnics on a launch vehicle, a low-voltage and high-precision power supply is selected for testing; When using a single test device to test the conductivity and insulation of cables on a carrier rocket, when testing the conductivity of cables on a carrier rocket, select the low-voltage module in the wide-voltage and high-precision power supply for testing; when testing the insulation of cables on a carrier rocket, select the high-voltage module in the wide-voltage and high-precision power supply for testing.

2. The universal integrated electrical system test system for launch vehicles according to claim 1, characterized in that: When testing the resistance of the timing path of the pyrotechnics on the launch vehicle, the test signal interface of the single test equipment is connected to the tested cable through the connecting cable to realize the test; When the insulation of the cables on the launch vehicle is tested, the test signal interface of the single test device is connected to the cable under test to implement the test.

3. The universal integrated electrical system test system for launch vehicles according to claim 1, characterized in that: The method of testing the pyrotechnics and cables on a carrier rocket by using a single test device includes: switching a low-voltage high-precision power supply or a wide-voltage high-precision power supply of the single test device through a double-pole double-throw switch to test the pyrotechnics or cables on the carrier rocket.

4. The universal integrated electrical system test system for launch vehicles according to claim 1, characterized in that: When a single test device is used to test the cables on a carrier rocket, the low-voltage module or the high-voltage module in the wide-voltage and high-precision power supply is switched by a relay to test the conductivity or insulation of the cables on the carrier rocket.

5. The universal integrated electrical system test system for launch vehicles according to claim 1, characterized in that: When a single test device is used to test the resistance of the timing path of the pyrotechnics on the launch vehicle, a low-voltage high-precision power supply is selected for testing, including: The main control unit selects the object to be measured by controlling the switch matrix unit, and connects the low-voltage and high-precision power supply and the data acquisition unit to the corresponding object to be measured; the current circuit current value is collected by the data acquisition unit, and the collected current circuit current value is transmitted to the main control unit, and the main control unit calculates the resistance value using Ohm's law.

6. The universal integrated electrical system test system for launch vehicles according to claim 1, characterized in that: When testing the conduction of the cable on the launch vehicle, the low-voltage module in the wide-voltage high-precision power supply is selected for testing, including: the main control unit controls the switch matrix unit to connect the first measuring point, connects the low-voltage module and the data acquisition unit to the corresponding measured object, collects the current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit, and the main control unit calculates the resistance value by using Ohm's law, compares the required value of the input configuration file, and obtains whether the cable is in a conducting state; When testing the insulation of the cable on the launch vehicle, a high-voltage module in a wide-voltage and high-precision power supply is selected for testing, including: the main control unit connects the first measuring point by controlling the switch matrix unit, connects the high-voltage module and the data acquisition unit to the corresponding object under test, collects the current circuit current value by the data acquisition unit, and transmits the collected current circuit current value to the main control unit. The main control unit calculates the resistance value by using Ohm's law, compares it with the required value of the input configuration file, and determines whether the cable is in an insulating state.

7. A universal integrated electrical system testing method for a launch vehicle, characterized in that: include: Step S1: using a single test device to test the resistance of the timing path of the pyrotechnics on the launch vehicle; Step S2: Using a single test device to test the conductivity and insulation of cables on the launch vehicle; The single test equipment includes a low-voltage high-precision power supply and a wide-voltage high-precision power supply; the wide-voltage high-precision power supply includes a high-voltage module and a low-voltage module; When using a single test device to test the pyrotechnics on a launch vehicle, or the resistance of the timing path on a launch vehicle, a low-voltage and high-precision power supply is selected for testing; When using a single test device to test the cables on a carrier rocket, when testing the conductivity of the cables on the carrier rocket, select the low-voltage module in the wide-voltage and high-precision power supply for testing; when testing the insulation of the cables on the carrier rocket, select the high-voltage module in the wide-voltage and high-precision power supply for testing.

8. The launch vehicle universal integrated electrical system testing method according to claim 7, characterized in that: When testing the resistance of the timing path of the pyrotechnics on the launch vehicle, the test signal interface of the single test equipment is connected to the tested cable through the connecting cable to realize the test; When the insulation of the cables on the launch vehicle is tested, the test signal interface of the single test device is connected to the cable under test to implement the test.

9. The launch vehicle universal integrated electrical system testing method according to claim 7, characterized in that: The method of testing the pyrotechnics and cables on the launch vehicle by using a single test device includes: switching a low-voltage high-precision power supply or a wide-voltage high-precision power supply of the single test device through a double-pole double-throw switch to test the pyrotechnics or cables on the launch vehicle; When a single test device is used to test the cables on a carrier rocket, the low-voltage module or the high-voltage module in the wide-voltage and high-precision power supply is switched by a relay to test the conductivity or insulation of the cables on the carrier rocket.

10. The launch vehicle universal integrated electrical system testing method according to claim 7, characterized in that: When a single test device is used to test the resistance of the timing path of the pyrotechnics on the launch vehicle, a low-voltage high-precision power supply is selected for testing, including: the main control unit selects the object to be tested by controlling the switch matrix unit, and connects the low-voltage high-precision power supply and the data acquisition unit to the corresponding object to be tested; the current circuit current value is collected by the data acquisition unit, and the collected current circuit current value is transmitted to the main control unit, and the main control unit calculates the resistance value by using Ohm's law; When testing the conduction of the cable on the launch vehicle, the low-voltage module in the wide-voltage high-precision power supply is selected for testing, including: the main control unit controls the switch matrix unit to connect the first measuring point, connects the low-voltage module and the data acquisition unit to the corresponding measured object, collects the current circuit current value through the data acquisition unit, and transmits the collected current circuit current value to the main control unit, and the main control unit calculates the resistance value by using Ohm's law, compares the required value of the input configuration file, and obtains whether the cable is in a conducting state; When testing the insulation of the cable on the launch vehicle, a high-voltage module in a wide-voltage and high-precision power supply is selected for testing, including: the main control unit connects the first measuring point by controlling the switch matrix unit, connects the high-voltage module and the data acquisition unit to the corresponding object under test, collects the current circuit current value by the data acquisition unit, and transmits the collected current circuit current value to the main control unit. The main control unit calculates the resistance value by using Ohm's law, compares it with the required value of the input configuration file, and determines whether the cable is in an insulating state.

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