摘要
随着功能强大的单片机在控制领域应用的不断深入,容错控制系统也在不断地发展,在一些特定的场合下,如在航空航天、军事、铁路、石油、化工、电力等重要部门和在恶劣工作环境下工作的计算机控制系统,对系统安全性、可靠性、可用性的要求更高。双冗余系统的两个模块同时执行一样的操作,在其中一个模块出现故障的时候,可以自动判断切换,以保证系统稳定、可靠、不间断的工作。双冗余不仅有较高的可靠性,而且有很高的安全性,因此在控制领域中可广泛应用。
Along with wide applications of the powerful MCU in the control fields, the fault-tolerant control system has developed quickly. In some specific occasions, very high security, dependability and usability of the system must be needed, such as in Aero-Space, military, railway, petroleum, chemical industry, electricity, and some the important departments and computer control systems working under the abominable environments,. Two pieces of the module of one pair of redundant systems carry out the same operation at the same time. When one piece of the module among them breaks down, the other can judge and switch over automatically to keep the system stable, reliable and incessant working. Double Redundancy not only has higher dependability, but also has very high security, so it is very popular used in the controlled fields.
出处
《航空计算技术》
2007年第6期106-108,共3页
Aeronautical Computing Technique
关键词
多处理器
冗余控制
闭环控制
单片机
multi--processor
redundancy control
closed-loop control
microcontroller
