基于飞控半物理仿真平台的1553B总线调度方法

摘要

1553B bus is widely used in domestic and international avionics systems. On the basis of a brief introduction on 1553B bus communication, the implementation of bus data scheduling, monitoring, storage and terminal emulation functions are described detailed based on flight control semi⁃physical simulation platform with 1553B bus. VxWorks real⁃time operating system is adopted by target machine. The design method of software typical module is given, which improves the efficiency of bus data transmission and reduces the bus loading rate significantly. Simulation results show that the intended functions can be implemented in flight control semi⁃physical simulation platform with 1553B bus scheduling software effectively, and its working performance is stable. It provides a reference for studying of 1553B bus applications and transplanting in other semi⁃physical simulation platform.%1553B总线广泛应用于国内外航空电子系统。在简要介绍1553B总线通信的基础上，对1553B总线在飞控半物理仿真平台中实现总线数据调度、监视、存储及终端模拟等功能进行了详细的说明。目标机采用VxWorks实时操作系统，给出软件典型模块的设计方法，该设计方法提高了总线数据传输效率，显著减小总线负载率。仿真结果显示，1553B总线调度软件在飞控半物理仿真平台中有效实现预定功能，工作性能稳定，为研究1553B总线在其他半物理仿真平台中的应用和移植提供参考。