Applicable to the method of automatically shielding the fault reading head of position sensor in extreme environment

Abstract

Applicable to the method of automatically shielding the faulty reading head of the position sensor in extreme environments: preset the corresponding rules for the output data of the faulty reading head; the controller has a built-in four-channel data state observer, which detects the variable values ​​corresponding to the four When the signal appears the preset characteristics in the corresponding rules of the preset fault reading head output data, the data masking algorithm is executed; the program is written according to the preset fault characteristics and data masking algorithm, and the automatic masking of the faulty reading head data is realized without affecting the operation of the equipment . The present invention also includes related software design schemes, and the program is written according to the principle of the four-channel data state observer designed above. The invention realizes the automatic shielding of the faulty reading head data of the grating position sensor in the extreme environment, and is used for the fault diagnosis and isolation of the multi-reading head grating angle measuring device.

Description

technical field [0001] The invention relates to a method suitable for automatically shielding a faulty reading head of a position sensor in an extreme environment, in particular to a method for automatically shielding a faulty reading head of a grating position sensor of an astronomical telescope. The method can automatically detect the fault reading head of the grating position sensor and shield the signal to realize the effective isolation of the fault. [0002] The present invention is a project of the National Natural Science Foundation of China "Research and Evaluation Method for Unexpected State Evolution of Direct Drive System of Very Large Telescope in Extreme Environment" (11973065) and "Latent Fault Warning and Seamless Intelligent Self-healing Strategy of Antarctic Large Aperture Telescope" Research" (11373052), this achievement was funded by the National Study Abroad Fund. Background technique [0003] The development of astronomical technology is changing with ...

AI Technical Summary

Problems solved by technology

At present, the output signal failure of the reading head of the grating position sensor is judged by human intervention. There is no way to automatically shield the output signal of the faulty reading head and automatically realize the isolation of the fault without affecting the operation of the telescope.

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