Photoelectric focusing encoder error code detection system and error code detection method

Abstract

The invention relates to the technical field of aerial remote sensing cameras, and particularly provides a photoelectric focusing encoder error code detection system and an error code detection method, and the error code detection system comprises: a control module which is used for controlling a power module to act; a power module which is used for driving the photoelectric focusing encoder to rotate; a photoelectric focusing encoder which rotates once to output a code value; a data acquisition module which is used for acquiring code values; and a data analysis module which is used for analyzing the collected code values and judging whether error codes occur or not. According to the error code detection system and the error code detection method, full-automatic detection of error codes can be achieved, the error code detection system and the error code detection method are more suitable for being used in a thermal vacuum environment, manual 24-hour waiting is not needed, the situationof missing detection cannot occur, and the detection efficiency and accuracy are improved.

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 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 and output it, so as to realize the digital control of the focal plane adjustment of the optical system. The low maintainability of the aerospace remote sensing camera after it is in orbit determines that any wrong code of the focusing encoder will severely impact the performance of the entire aerospace remote sensing camera, and even lead to mission failure. The best solution for error detection of existing photoelectric encoders is the artificial light row interpretation method. In this solution, the output port of the photoelectric encoder is connected to the display light 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

Images