Ground Simulation Evaluation System and Method for Space Application Oriented Vision Measurement System

Abstract

The invention discloses a visual measurement system ground simulation evaluation system and method for space applications. The system includes a camera, a visual marker, an electronic theodolite three-dimensional measurement system, a six-degree-of-freedom digital display adjustment table, an LED lamp array, and a solar simulator; the solar simulator and The LED light array simulates the lighting conditions in the space. The six-degree-of-freedom digital display adjustment table fixedly supports the visual mark and drives the visual mark to move at a constant speed. The camera collects the image of the visual mark and outputs the measured value of the pose. The true value of the pose between the markers, and compare the measured value with the true value to evaluate the pose measurement accuracy of the camera. The method involves: extreme lighting environment simulation, extreme motion state prediction, and camera pose measurement accuracy evaluation. This paper The inventive system and method can comprehensively simulate and evaluate the three-dimensional attitude measurement accuracy of the camera on the space target in the orbit state and the robustness of the camera in the extreme motion state of the target.

Description

technical field [0001] The invention belongs to the field of photoelectric measurement, and in particular relates to a ground simulation evaluation system and method for a space application-oriented visual measurement system. Background technique [0002] In recent years, with the sudden emergence of artificial intelligence technology, space robots represented by space manipulators have gradually developed into one of the indispensable key technologies in the field of aerospace science and technology, especially for space station orbit services, deep space exploration, etc. aspect is of great importance. So far, foreign successful cases mainly include: the Canadian Space Shuttle Teleoperated Manipulator SRMS, the Canadian International Space Station Teleoperated Manipulator SSRMS, the Japanese Experimental Satellite Manipulator ETS-VII, the American Curiosity Mars Rover Curiosity, and NASA’s in-cabin space service robot Robonaut2 Wait. The above-mentioned space robot is eq...

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Problems solved by technology

The above studies are all carried out around the ground routine testing of the key characteristics of the pose accuracy, but the consideration of the complexity of the lighting conditions in the space application scene where the vision measurement system is located is still blank, and it is difficult to guarantee the on-orbit accuracy and accuracy of the target pose measurement function performance. Therefore, it cannot meet the actual needs of the ground simulation test of the visual measurement system for space applications

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