A photoelectric focus encoder error detection system and detection method

Abstract

The present invention relates to the technical field of aerial remote sensing cameras, and specifically provides a code error detection system and a code error detection method for a photoelectric focusing encoder. The code error detection system includes: a control module for controlling the action of a power module; The focus encoder rotates; the photoelectric focus encoder rotates once to output a code value; the data acquisition module is used to collect the code value; the data analysis module is used to analyze the collected code value and judge whether there is a code error. The code error detection system and the code error detection method of the present invention can realize the automatic detection of code errors, and are more suitable for use in a thermal vacuum environment. There is no need for manual 24-hour waiting, and there will be no missed detection, which improves the efficiency and efficiency of detection. accuracy.

Description

technical field [0001] The invention relates to the technical field of aerial remote sensing cameras, in particular to a code error detection system and a detection method for a photoelectric focusing encoder. Background technique [0002] The focus encoder is an important component of the aerospace remote sensing camera. Its function is to convert the spatial angular displacement into a binary code output to realize the digital control of the focal plane adjustment of the optical system. The low maintainability of the space remote sensing camera after it is in orbit determines that any wrong code of the focusing encoder will seriously affect the working performance of the entire space remote sensing camera, and even lead to the failure of the mission. The best solution for error detection of the existing photoelectric encoder is the artificial lamp row interpretation method. In this solution, the output port of the photoelectric encoder is connected to the display lamp row,...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing common focus encoder error detection method cannot be applied to the thermal vacuum test process, the present invention provides a photoelectric focus encoder error detection system, the error detection system includes: photoelectric A focusing encoder, a power module, a control module, a data acquisition module and a data analysis module; the control module is used to control the action of the power module; the power module is used to drive the photoelectric focus encoder to rotate; the The photoelectric focusing encoder rotates once to output a code value; the data acquisition module is used to collect the code value; the data analysis module is used to analyze the collected code value to determine whether there is a code error

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