Autonomous landing navigation control ground test verification system under microgravity environment

Abstract

The invention relates to an autonomous landing navigation control ground test verification system under a small celestial body (asteroid and comet) microgravity environment and belongs to the technical field of ground semi-physical simulation. The autonomous landing navigation control ground test verification system under the microgravity environment specifically comprises a small celestial body surface topography simulation part, a base part, a lander mounting platform and an external measurement part, wherein the lander mounting platform comprises a mounting platform body, multiple flotation air legs, one small-thrust nozzle, wherein the multiple flotation air legs are fixed at the bottom of the mounting platform body in a regular polygon shape, so as to realize a high-pressure air cushion, so that frictionless motion is realized; the small-thrust nozzle is arranged in the inverse direction of to-be-simulated microgravity and used for generating a thrust so as to serve as the microgravity borne by a lander; the external measurement part is used for measuring space states such as the position and posture of the lander mounting platform relative to the small celestial body surface topography simulation part. The system can simulate different microgravities by virtue of changing the thrust of the nozzle and has the advantages of simplicity in test, rapidness, and the like.

Description

technical field [0001] The invention relates to a ground test verification system for autonomous landing navigation control of a small celestial body (asteroid, comet) in a microgravity environment, and belongs to the technical field of ground semi-physical simulation. Background technique [0002] With the increasing number of interplanetary exploration missions, autonomous positioning of landers and safe soft landing on the surface of planets have become important tasks and topics for future deep space scientific exploration. Soft landing navigation control technology means that the lander uses the information provided by its own sensors to determine the position and attitude information such as position and attitude, and at the same time perform safety evaluation on the alternative landing area, select the final landing point during the landing process, and generate control information at the same time. Lil reached the landing site safely. People pay more and more attent...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of ground simulation test of autonomous landing navigation control in microgravity environment, provide a ground test verification system for autonomous landing navigation control in microgravity environment, and realize the landing process of the lander by using an air flotation platform combined with a small thrust jet method Simulation of medium and microgravity environments

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