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未来飞机采用光传操纵系统能够提高抗电磁干扰能力、减小体积和重量,多余度技术能够提高光传操纵系统的可靠性,而交叉通道数据链路是余度计算机之间进行数据交换的重要途径。为此,设计了一种具有多故障容错能力的光传飞控系统交叉通道数据链路。根据系统性能要求,给出并讨论了该链路系统的结构配置和工作流程,分析了其关键组成部件的功能和实现技术,并设计了当光链路发生故障时系统的容错逻辑算法。通过理论分析和数值计算表明,该链路系统能够提高光传飞控系统的安全性和可靠性,并具有良好的实时性和实用性。
The future aircraft using light transmission control system can improve anti-electromagnetic interference capacity, reduce size and weight, redundancy technology can improve the reliability of light transmission control system, and cross-channel data link redundancy computer is important for data exchange way. To this end, a cross-channel data link of a fly-by-light flight control system with multi-fault fault tolerance is designed. According to the requirements of system performance, the configuration and work flow of the link system are given and discussed. The functions and implementation techniques of the key components are analyzed. The fault tolerant logic algorithm of the system is designed when the optical link fails. The theoretical analysis and numerical calculation show that the link system can improve the safety and reliability of the flight control system and has good real-time and practicality.