飞机管理系统1394b总线测试技术研究

Research on 1394b Bus Test Technology of Aircraft Management System

IEEE-1394总线是为商用电子系统应用而研发的,其诸多的动态特性并不适合安全关键的飞机管理系统的高确定性和高可靠性。据此,美国的洛克西德-马丁公司领导的SAE工作组对IEEE-1394b规范开展一些改进和限制,形成满足航天和航空高安全领域要求的AS5643协议总线,具有高实时性、高确定性和高可靠性的特性。本文简述了飞机管理系统总线的基本拓扑结构和AS5643协议,并搭建了1394b总线仿真测试系统进行模拟,完成对飞机管理系统1394B总线测试技术研究。

IEEE-1394 bus is developed for the application of commercial electronic system,and its many dynamic characteristics are not suitable for the high certainty and reliability of the safety critical aircraft management system.According to this,the SAE working group led by Lockheed Martin Company of the United States carried out some improvements and restrictions on the IEEE-1394b specification,forming the AS5643 protocol bus that meets the requirements of aerospace and aviation high security fields,with the characteristics of high real-time,high certainty and high reliability.In this paper,the basic topology and as5643 protocol of the aircraft management system bus were introduced,and the 1394b bus simulation test system was built to simulate,and the research on the 1394B bus test technology of the aircraft management system was completed.