摘要
为了提高飞行控制计算机系统的可靠性和容错能力,本设计采用了余度技术;余度管理软件是余度技术的核心,系统的可靠性和容错能力主要是通过余度管理软件实现的;深入研究了余度管理软件的算法,并且详细描述了余度管理软件的总体设计流程,给出了20ms任务、同步、信号的监控表决的详细软件设计流程图;通过构建闭环仿真实验平台来验证软件的可靠性,系统三余度工作正常,切掉一个通道后也能正常工作。仿真验证结果表明该软件的设计方案合理,可以有效地保证系统的可靠性和容错性能。
In order to improve the reliability and fault tolerance of the flight control computer system, redundancy technology is used in this paper. Redundancy management software is the core of the redundancy technology, through redundancy management software can realize system reliability and fault tolerance. This article studies the redundancy management software algorithm, describes a detailed overall design process of the redundancy management software and gives the software design flow of 20ms task, synchronization, signal monitoring and voting. By constructing a closed--loop simulation platform to verify the reliability of the software, the system of three normal channels, in case of cutting a channel, can also normally work, the simulation results show that the software design is reasonable and effective to ensure system reliability and fault tolerance.
出处
《计算机测量与控制》
北大核心
2013年第3期809-810,822,共3页
Computer Measurement &Control
关键词
余度管理软件
20ms任务
同步
表决监控
仿真平台
redundancy management software
20ms task
synchronous
vote monitoring
simulation platform
