基于CAN总线的控制系统地面仿真测试平台研究

针对采用CAN总线进行数据传输的小卫星和运载火箭控制系统开展地面仿真测试评估研究。基于CAN总线和以太网构成总线网络,构建卫星和运载火箭控制系统地面仿真测试评估平台,给出总线上各仿真节点和实物节点的软硬件设计方案,设计了机内测试模拟方案。仿真验证分析表明,利用该平台可以对卫星和运载火箭控制系统信号、总线运行情况、控制周期和网络时延等进行正确分析,为卫星和运载火箭控制系统方案评估、控制方法和快速测试方法研究等提供理论依据和技术支持。

Research on the Ground Simulation Test Platform for Control System Based on CAN Bus

The ground simulation test evaluation was conducted for the small satellite and launch vehicle control systems transmitting data with CAN bus.Based on the two-stage bus network composed of CAN bus and Ethernet,the ground simulation test evaluation platform for satellite and launch vehicle control system was established,and the solutions for software and hardware of the bus nodes were proposed,and the analogue scheme for built-in test was designed.The simulation result shows that the signal of satellite control system,the operation of bus,the control cycle and network time delay can be appropriately analyzed with this platform.The research provides theoretic reference and technology support for the alternative evaluation,control and test study of the satellite and launch vehicle control systems.