一种1394总线信号模拟器设计与实现

Design and implementation of a 1394 bus signal simulator

1394总线在航空电子系统得到广泛应用,针对单一信号源无法满足飞行试验测试需求的现状,提出一种1394总线信号模拟器系统设计方案。系统硬件环境基于Compact PCI工控计算机,系统采用模块化设计思想,能够实现飞机管理仿真功能和航电总线仿真功能,仿真功能相对独立的同时可模拟实现不同的节点仿真设备协同工作,实现单仿真设备的多功能应用一体化设计。实验结果表明,该1394总线信号模拟器稳定性好、可靠性高、使用便捷,满足设计需求。

1394 bus is widely used in avionics system.Aiming at the situation that a single signal source can not meet the requirements of flight test,a design scheme of 1394 bus signal simulator system is proposed.The hardware environment of the system is based on the compact PCI industrial control computer.The system adopts the modular design idea,which can realize the simulation function of aircraft management and avionics bus.The simulation function is relatively independent,and at the same time,it can simulate the collaborative work of different node simulation equipment,and realize the integrated design of multi-functional application of single simulation equipment.The experimental results show that the 1394 bus signal simulator has good stability,high reliability,convenient use and meets the design requirements.