Abstract

The paper introduces the modeling method and modeling tool for the fault diagnosis of manned spacecraft, the multi-signal flow graph model of a manned space equipment was established using this method; the framework of the fault detection and diagnosis system of manned spacecraft is proposed, the function of ground system and function of the spacecraft are clearly defined. The structure of the functional module is given separately; finally, the tool builds the fault detection and diagnosis system, the application of fault diagnosis method for manned spacecraft is used for reference.

Highlights

  • Manned spacecraft is a large complex system with the latest cutting-edge achievements in the field of machinery, electronics, materials, control, energy, communication and computer technology

  • The design of manned spacecraft must be capable of fault monitoring and diagnosis, which is an extremely important auxiliary means to improve the reliability of manned spacecraft [1~3]

  • Ground monitoring and diagnosis system. He structure of the ground monitoring and diagnosis system is shown in Fig. 3, below half part, the ground monitoring and diagnosis system based on Browser / server (B/S) architecture, the server real-time diagnostic procedures and database management system, the user can receive authorization in computer network browsing real-time monitoring results

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Summary

INTRODUCTION

Manned spacecraft is a large complex system with the latest cutting-edge achievements in the field of machinery, electronics, materials, control, energy, communication and computer technology. Because of the design level, manufacturing technology, the influence of such factors as cost limits, the manned spacecraft reliability of each subsystem, component is reduced, and prone to failure, affect the flight mission, threatened the personal safety, and manned spacecraft to reliable operation in the task of thousands years’ time. The research on spacecraft fault diagnosis method has been paid more and more attention. By comparing various fault diagnosis methods, it can be seen that each method has its own advantages and disadvantages, and different research objects apply different diagnostic methods. Based on the analysis of the subjects and the advantages and disadvantages of various diagnostic methods, this paper selects the model based method to study the fault diagnosis of manned spacecraft. Based on the analysis of the subjects and the advantages and disadvantages of various diagnostic methods, this paper selects the model based method to study the fault diagnosis of manned spacecraft. [4~6]

Modelling Methods and Tools
Model Modelling Method
Modelling Tools
Modelling Steps
Overall Structure and Plan
On Board Monitoring and Diagnosis System
Ground monitoring and diagnosis system
Intelligent mining technology of test data
Conclusions
Full Text
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