Modularly integrated satellite dynamics simulation testing system and method

Abstract

A modular and integrated satellite dynamics simulation test system and method, the system is used for the ground simulation test of the small satellite attitude and orbit control system, the small satellite dynamics simulation test system is based on modular construction, including measurement and control upper computer and real-time lower computer . The measurement and control upper computer is a general-purpose computer, which runs the human-computer interaction software of the simulation system; the real-time lower computer includes the chassis, controller, digital signal acquisition and output card, analog signal acquisition and output card, RS‑422 communication card, CAN communication card, power supply Card, interface box, real-time lower computer except the chassis and interface box, all functional module boards are integrated based on the PXI bus, and the lower computer controller runs dynamics simulation calculation software. In addition to the interface box of the real-time lower computer, other modules are integrated inside the chassis. The upper computer and the lower computer are connected through Ethernet, and communicate based on the TCP / IP protocol, and carry out the interaction of operation instructions, collected data and simulation data. The present invention is applied to the simulation test of the attitude-orbit control system of the small satellite, which improves the integration and scalability of the small-satellite attitude-orbit control simulation test equipment, and the deployment of the equipment is simple and fast.

Description

technical field [0001] The invention relates to a modularized and integrated satellite dynamics simulation test system and method, which are used to realize the ground simulation of the satellite's in-orbit state, can be applied to the ground simulation and test of the attitude and orbit control system of small satellites, and belong to the satellite attitude and orbit control System simulation test field. Background technique [0002] Small satellite technology has developed rapidly in recent years, and small satellite constellation and constellation technology has begun to be gradually applied, which puts forward higher requirements for the comprehensive testing of small satellites. In the whole satellite test, the test of the attitude and orbit control subsystem is a relatively complicated link. The small satellite control system needs to carry out a large number of ground simulation tests and multiple system transitions during the development and launch stages. [0003]...

AI Technical Summary

Problems solved by technology

[0003] The ground test of the small satellite attitude and orbit control system mainly adopts the method of dynamic simulation. At present, the ground simulation test system of the small satellite attitude and orbit control system is usually a discrete system based on rack-mounted cabinets and general testing instruments. Low, it is difficult to achieve integrated control, the deployment and use of equipment are complicated, and the degree of generalization is low. Due to the large size and weight, the transportation work is difficult, and it is difficult to adapt to the requirements of the rapid development of small satellites

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