Detection device and method for single-circuit reliability of launch vehicle's three-choice-two ignition circuit

Abstract

The invention discloses a device for detecting the one-way reliability of a carrier rocket two-out-of-three ignition circuit. The device comprises a testing microcomputer, an instruction simulator and a timing sequence receiving unit, wherein the testing microcomputer is connected with the instruction simulator and the timing sequence receiving unit. The instruction simulator is used for sending a simulated ignition instruction to an ignition PLC. The timing sequence receiving unit is used for receiving a PLC timing sequence signal output by a three-way ignition PLC and an ignition timing sequence signal output by a contactor circuit. The testing microcomputer is used for controlling work of the instruction simulator and work of the ignition PLC, and further used for reading the PLC timing sequence signal and the ignition timing sequence signal from the timing sequence receiving unit and judging whether the timing sequence requirement is met according to a preset judgment method. The device for detecting the one-way reliability of the carrier rocket two-out-of-three ignition circuit has the advantages that the one-way reliability of the two-out-of-three ignition circuit is examined, the timing sequence of the ignition circuit is automatically interpreted, and the use reliability of the two-out-of-three ignition circuit is improved.

Description

technical field [0001] The invention belongs to the technical field of launch vehicle ground equipment, and in particular relates to a detection device and method for evaluating the single-circuit reliability of a launch vehicle's three-select-two ignition circuit. Background technique [0002] At present, there is a problem that the reliability of a single circuit of the three-choice two ignition circuit of the launch vehicle is difficult to assess. Although a failure of a single circuit in the three-choice two ignition circuit will not cause the impact of a wrong ignition command, if the single-circuit fault is not repaired in time, if other If the path fails, there will be a security risk. Therefore, there is an urgent need for a detection device and detection method that can timely evaluate the performance of a single ignition circuit of three selections, so that when a single ignition circuit has a fault, it can be detected in time, thereby improving the reliability of ...

AI Technical Summary

Problems solved by technology

[0002] At present, there is a problem that the reliability of a single circuit of the three-choice two ignition circuit of the launch vehicle is difficult to assess. Although a failure of a single circuit in the three-choice two ignition circuit will not cause the impact of a wrong ignition command, if the single-circuit fault is not repaired in time, if other If the path fails, there will be a safety hazard

Images