航天器多总线系统网信息仿真系统设计

Communication Simulation System Design for Spacecraft System Network based on Multibus

摘要:

针对航天器系统网多组1553B与串行总线通信的应用情况,设计了一种航天器多总线系统网信息仿真系统；系统采用三层网络的数据系统架构,使用C语言与CVI混合编程以多线程机制模拟遥测遥控数据的采集、处理、显示及存储,具有人机界面友好,可靠性、实时性高及成本低的特点；试验结果表明,该系统功能及性能完全满足航天器系统网信息仿真要求,有效支撑了航天器系统网的总体设计,大幅度降低了研发周期。

关键词:系统网;1553B;总线;CVI

Abstract:

This article designed a communication simulation system for spacecraft system network which consist of mullti groups of 1553B bus and RS422 bus. By hybrid programming of C language and CVI, the simulation system simulates the collection, handling, displaying and storage of data from telemetric and command with multithreading mechanism. And the system has the characteristics of friendly man-machine interface, high real-time, high reliability and low cost. Test results showed that the system functions and performance completely meet the simulation requirement of spacecraft system network. The simulation system gives a strong support for system network design of the spacecraft and shortens the research and development cycle.

Key words:system net;1553B; bus; CVI