舰船电站控制系统的双CPU混成式故障检测技术  

Dual CPU redundant communication hybrid fault detection technology for shipborne electrical plant control system

作　　者：卢月 李维波 李巍 李齐 孙万峰 LU Yue;LI Weibo;LI Wei;LI Qi;SUN Wanfeng(School of Automation,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学自动化学院,湖北武汉430070

出　　处：《中国舰船研究》2021年第3期200-206,共7页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(51977164);国家重点研发计划资助项目(2020YFB1506802)。

摘　　要：[目的]为了提高舰船电站控制系统的可靠性,需解决双CPU热备冗余的通信故障检测这个关键问题,为此提出一套完善的故障检测机制。[方法]基于传统的双CPU故障检测方法,提出由网络故障检测法和第三方监控心跳法相结合的混成式故障检测机制。基于双CPU冗余系统的设计架构,分析2种故障检测方法的软件原理以及工程实现流程。[结果]实物验证结果表明:混成式故障检测技术克服了传统故障检测方法的对象单一、仅针对CPU故障而忽视其外围通信故障,以及"双主机现象"等缺点,提高了故障检测的速度与精确度,可以保障双CPU冗余系统的平稳、可靠运行。[结论]研究成果可为舰船电站控制系统中双CPU冗余通信的故障检测方式提供参考。[Objectives]In order to improve the reliability of shipborne electrical plant control systems and solve the key problem of fault detection in dual CPU hot backup redundant communication,a comprehensive set of fault detection mechanisms is proposed.[Methods]After analyzing traditional dual CPU fault detection,this study proposes a hybrid fault detection mechanism combining the network fault detection method with the third-party monitoring heartbeat method.Based on the designed dual CPU redundant system architecture,the principles and software implementation of the two proposed fault detection methods are analyzed,and the proposed fault detection method is verified on an actual device.[Results]After actual device inspection,the results show that the proposed dual fault detection technology overcomes the shortcomings of traditional fault detection methods such as focusing on CPU faults but ignoring CPU peripheral communication faults,and susceptibility to the"dual host phenomenon".It also improves the speed and accuracy of fault detection to ensure the stable and reliable operation of the dual CPU redundant system.[Conclusions]The results of this study can provide references for the dual CPU redundant communication fault detection methods of shipborne electrical plant control systems.

关 键 词：舰船电站控制系统 双CPU冗余通信 混成式故障检测 

分 类 号：U665.12[交通运输工程—船舶及航道工程]