多电飞机配电系统TTP/C总线应用技术研究

C类时间触发协议(Time triggered protocol/class C,TTP/C)总线具有安全性高、实时性好和传输速度快的优点,本文提出将TTP/C总线应用于多电飞机配电系统中。首先分析了多电飞机分布式自动配电系统的结构,以及TTP/C总线架构和特点。然后提出了针对飞机配电系统的通讯网络,利用动态链接库分别实现C语言和LabVIEW语言环境下的通讯软件编程。接着给出,偏移地址选择方法决定数据来源走向,提出数据空间转换和格式转换方法提高通讯效率和可靠性。最后经过系统试验表明,该应用技术能够实现飞机配电系统中的TTP/C总线应用,满足系统通讯要求,提高多电飞机通讯系统的可靠性和通讯速度。

Application of TTP/C Bus in Distribution System of More Electric Aircraft

Time triggered protocol/class C(TTP/C) bus has the advantages of high security, good real-time and fast transmission speed. We apply TTP/C bus to more-electric aircraft power distribution system. Firstly, we analyze the structure of distributed automatic power distribution system of more-electric aircraft and the structure and characteristics of TTP/C bus. Then we propose the aircraft distribution system communication network and use dynamic link library to realize communication software programming in C language environment and LabVIEW language environment. Secondly, we provide the offset address selection method to determine the data source direction, and propose data space conversion and format conversion method to improve communication efficiency and reliability. Finally, the test shows that the application technology can realize the TTP/C bus application in the aircraft distribution system, meet the system communication requirements, and improve the reliability and communication speed of the more-electric aircraft communication system.