基于VxWorks的卫星实时数学仿真平台  

Real-time Mathematical Simulation Platform of Satellite Based on VxWorks

作　　者：沈二建[1] 张涛[1] 宋靖雁[1] 王乾[1] 

机构地区：[1]清华大学自动化系导航与控制研究中心,北京100084

出　　处：《系统仿真学报》2010年第A01期199-201,206,共4页Journal of System Simulation

摘　　要：介绍了一种卫星数学实时仿真平台。详细说明了仿真平台四台工控机的软硬件配置和作用。仿真平台将星载机模型和卫星其他模型分开,模拟了敏感器和执行机构与星载机之间的通信。使用了VxWorks实时操作系统和CAN总线,保证了仿真的实时性。合理地使用CAN总线、网络通信和串口通信,用于不同的通信任务,模拟了卫星的遥测遥控功能,实现了对仿真平台的监控功能。根据仿真平台的设计理念,提出了一种可以经过转换用半物理仿真的数学仿真平台。A real-time mathematical simulation platform of satellite is presented. The four Industrial Personal Computers of the platform is introduced in detail. In this platform, the on-board computer model and the other models are running on two computers respectively, so that the communication between sensors, along with actuators and the on-board computer is simulated. Using the VxWorks operating system and CAN bus can ensure the real-time characteristic. And the CAN bus、network communication and serial communication are used to take different tasks reasonably, in order that the Telemetry Telecontrol function and monitor of the platform can be realized. Following the idea of the mathematical simulation platform, a semi-physical simulation platform is put forward.

关 键 词：VXWORKS 实时性 网络通信 RS-232 CAN总线 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]