A space environment fault diagnosis equipment and diagnosis method

Abstract

The invention discloses space environment fault diagnosis equipment and method. The equipment comprises a fault diagnosis instrument and handheld equipment, wherein the handheld equipment is connectedwith the fault diagnosis instrument, and the fault diagnosis instrument is connected to an internal bus of an environment control and life support system subsystem; the fault diagnosis instrument isused for acquiring real-time data of the subsystem, and the real-time data comprises subsystem analog quantity, remote measurement parameters and fault codes; the fault diagnosis instrument is connected to the internal bus of the life support system subsystem, can obtain data of the subsystem in real time, and can also guide astronauts to remove faults by utilizing reasoning knowledge in a groundexpert database, so that fault positioning is realized. According to the invention, an automatic and manual combination mode is adopted; the space environment fault positioning, diagnosis and processing are completed, astronauts can participate in fault diagnosis through olfactory, auditory sense, visual sense, actual operation and other modes, the problem that previous on-orbit fault diagnosis mainly depends on ground support is solved, a large amount of data transmission between the satellite and the ground is reduced, and the accuracy of on-orbit fault positioning is improved.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and in particular relates to a space environment fault diagnosis device and a diagnosis method. Background technique [0002] At present, in the space environment, the fault diagnosis method is that the system-level controller collects the sensor parameters of each subsystem. If the fault mode occurs, the controller gives processing measures according to the fault criteria. The measures are mainly alarm or shutdown maintenance. However, each subsystem has the following two problems when the failure mode is given: [0003] 1) The failure mode given by each subsystem cannot be completely refined to a certain component, and the means of subsystem maintenance is to replace the faulty component, so it is necessary to further troubleshoot and diagnose until the faulty component is located; [0004] 2) The failure modes of each subsystem are not comprehensive. Some subsystem failure mode...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the inaccurate fault location existing in current fault diagnosis means, and the shortcoming that the diagnosis transition relies on ground support, and provides a space environment fault diagnosis equipment and diagnosis method, which adopts a combination of automatic and manual methods to complete the space environment fault location Astronauts can participate in fault diagnosis by means of smell, hearing, vision, and actual operation, which solves the problem that fault diagnosis is too dependent on ground support, reduces a large amount of data transmission between satellites and ground, and improves on-orbit faults. positioning accuracy

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