Satellite attitude control semiphysical simulation system based on multi-target machine

Abstract

The invention discloses a satellite attitude control semiphysical simulation system based on a multi-target machine. The satellite attitude control semiphysical simulation system comprises a real-time positioning sub system, an attitude measurement sub system, an attitude control comprehensive processing system, an execution mechanism, a signal conditioning box, a target machine, a working computer and a display system, wherein the real-time positioning sub system acquires real-time position information of a satellite; aiming at different working modes of the satellite during orbit flying, the attitude measurement sub system acquires real-time attitude information of the satellite; the attitude control comprehensive processing system manages all attitude measurement components and the execution mechanism; the target machine performs attitude calculation and torque calculation according to acquired real-time position information and the acquired attitude information and sends control information to the execution mechanism; and the execution mechanism sends actual execution information back to the target machine through the signal conditioning box, acquires the real-time attitude information of the satellite through dynamics and sends the attitude information to the attitude measurement components. The satellite attitude control semiphysical simulation system has high simulation instantaneity, high fault-tolerant capability and high integration degree and has great instructional significance for design and development of satellite attitude control systems.

Description

technical field [0001] The invention relates to a satellite attitude control ground semi-physical simulation system based on a multi-target aircraft. The system can simulate the attitude measurement and control process in different modes when the satellite is in orbit on the ground, and can be used to verify the overall design of the satellite control system. Feasibility, and research on fault handling strategies when satellites are in orbit. Background technique [0002] Satellite engineering is a high-input, high-risk and high-precision system engineering. When a satellite is in orbit, its attitude and orbit shape are very complicated due to the influence of various external factors, and because the control of satellite orbit and attitude depends on Therefore, the high-precision, high-reliability satellite attitude measurement and control system has become a bottleneck restricting the rapid development of satellites. It can be seen that when designing a satellite, the des...

AI Technical Summary

Problems solved by technology

The semi-physical simulation system at this stage mainly uses a star structure in terms of multi-node real-time communication. This real-time network structure has the advantages of low delay and high transmission rate, and ensures that all node data can be updated quickly. However, this network structure adds a Real-time network HUB, and with the same number of nodes, the fiber used has also doubled, which greatly reduces the reliability of the entire system while increasing the test cost; in addition, most semi-physical simulation systems at this stage only consider the system In the working situation, there is no systematic consideration of the first aid strategy when a certain component or several components in the system fail due to the space single event flipping effect, single event locking effect, or other reasons. Formal flight in orbit leaves hidden dangers

In short, due to the above defects, the existing ground semi-physical simulation system for micro-satellite attitude control has shortcomings such as complex real-time network structure, high operating cost, poor operation reliability, and few strategies to solve the failure of semi-physical simulation system components.

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