Space application-oriented vision measurement system ground simulation evaluation system and method thereof

Abstract

The invention discloses a space application-oriented vision measurement system ground simulation evaluation system and a space application-oriented vision measurement system ground simulation evaluation method. The system comprises a camera, a visual marking, an electronic theodolite three-dimensional measurement system, a six-degree-of-freedom digital display adjusting table, an LED lamp array and a solar simulator. The method comprises the following steps that the solar simulator and the LED lamp array simulate space illumination conditions, the six-degree-of-freedom digital display adjusting table fixedly supports the visual marking and drives the visual marking to move at a constant speed, the camera collects a visual marking image and outputs a pose measurement value, the electronic theodolite three-dimensional measurement system obtains a pose truth value between the camera and the visual marking, and the measurement value is compared with the truth value to evaluate the pose measurement precision of the camera. The methods involve extreme illumination environment simulation, extreme motion state estimation and pose measurement precision estimation of the camera. According tothe space application-oriented vision measurement system ground simulation evaluation system and the method thereof, the three-dimensional attitude measurement precision of the space target by the camera in the on-orbit state and the robustness of the camera when the target is in the extreme motion state can be comprehensively simulated and evaluated.

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...

AI Technical Summary

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

Images