机载机电系统综合管理总线控制技术研究  

Bus Control Technology for Integrated Management of Airborne Electromechanical Systems

作　　者：刘巧珍[1] 裘丽华[1] 王占林[1] 

机构地区：[1]北京航空航天大学自动化学院机电工程系,北京100083

出　　处：《计算机仿真》2006年第1期246-249,254,共5页Computer Simulation

基　　金：国家自然科学基金 50075005

摘　　要：采用基于windows实时扩展模块RTX和1553B双冗余总线,设计了新一代机载机电设备综合管理分布式仿真平台系统结构,保证了系统的实时性和容错性,改变了原有系统“散、乱、杂”的局面。该文着重分析了1553B总线系统传输模式, 提出了各终端模式软件设计所需考虑的问题,采用模块化软件设计思想设计了1553B总线传输系统软件,在试验结果基础上分析了总线特性。结果表明．在数据量一定的情况下,BC初始化帧频率的选取对总线负载的影响较大,频率越小,总线负载轻,不会出现总线堵塞现象；帧频率高数据传输速度快,延时小,总线负载重。系统软件采用模块化设计,具有可扩展性和一定程度的开放性。By using the technology of real -time extension module RTX and 1553B bus with double redundancy, this paper designs a system framework of distributed hardware - in - loop simulation platform for comprehensive management of airbome electromechanical systems, which makes the system has real - time and fault - tolerance performance, and changes the loose, disordered and miscellaneous layout and structure. This paper emphasizes the problems which need to be taken into account in software deign of each kind of terminal according to their transfer formats. Then this paper designs the message transmission system software of 1553B bus with the modularization idea and analyzes the bus characters based on the test results. The results indicate that BC frame frequency has biggish effect on the bus loading, and on the condition of the same data transmitted, the lower the frequency is, the less the loading is , and vice versa. By modularization, this paper designs the software structure which is provided with scalability and open characteristic.

关 键 词：机载机电系统 综合管理 仿真 总线 传输模式 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]