Fault diagnosis method for gyro measurement system

Abstract

The invention discloses a fault diagnosis method for a gyro measurement system. The method comprises the steps of: (1) determine the configuration type of gyros, and then calculating the angle relationship between the gyros; (2) determining the weight coefficient of a gyro balance equation; (3) determining judgment gyro sequencing; (4) designing a balance equation according to the determined judgment gyro sequencing result in step (3); and (5) designing a fault diagnosis method. The method provided in the invention can substantially improve the probability of gyro fault diagnosis, has strong project realizability, and can adapt to fault diagnoses of gyros with any complex configuration.

Description

Technical field [0001] The invention belongs to the field of spacecraft attitude and orbit control, and relates to a fault diagnosis method of a gyro measurement system. Background technique [0002] The gyro measurement system is an angular velocity sensor that is often used in spacecraft attitude and orbit control tasks, and its reliability directly affects the reliability of the spacecraft. With the continuous development of spacecraft technology, higher and higher requirements are put forward for the autonomous operation of spacecraft. The realization of autonomous fault diagnosis and processing of the gyro measurement system is of great significance for improving the autonomous operation capability of the spacecraft. The gyroscope installation configuration includes the main-standby 3 orthogonal configuration, the 3 orthogonal + 1 inclined configuration, and the multiple inclined configuration. The gyro configuration often affects the design of the fault diagnosis algorithm ...

AI Technical Summary

Problems solved by technology

[0006] The above method has the following disadvantages: it generally focuses on the diagnostic algorithm, and most of them are based on the normal configuration of the gyroscope, such as the 3-orthogonal configuration, multiple sets of 3-orthogonal configurations that are mutually redundant, and the 3-orthogonal + 1 oblique configuration. type, etc., but did not consider the diagnostic abnormality caused by the non-orthogonal configuration of the gyroscope. The setting of the balance equation is in accordance with the conventional method. In fact, the accuracy of diagnosis is closely related to the gyro configuration, balance equation, and diagnosis algorithm. relevant

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