作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2012, Vol. 38 ›› Issue (15): 258-259,275. doi: 10.3969/j.issn.1000-3428.2012.15.073

• 工程应用技术与实现 • 上一篇    下一篇

一种新型二乘二取二安全计算机系统

陈祥献,郭 庆,黄 海   

  1. (浙江大学生物医学工程与仪器科学学院,杭州 310027)
  • 收稿日期:2011-09-19 出版日期:2012-08-05 发布日期:2012-08-05
  • 作者简介:陈祥献(1967-),男,副教授,主研方向:轨道交通信号系统;郭 庆,硕士研究生;黄 海,教授、博士生导师

New Dual-duplex Safety-critical Computer System

CHEN Xiang-xian, GUO Qing, HUANG Hai   

  1. (College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China)
  • Received:2011-09-19 Online:2012-08-05 Published:2012-08-05

摘要: 设计一种用于轨道交通系统的二乘二取二安全计算机系统,包括I/O模块、CPU模块和切换模块。在I/O模块中,利用动态电路实现数据安全输入及输出。在CPU模块中,提出一种基于以太网通信的同步表决方案。在切换模块中,通过输出回路控制实现主备之间的无缝切换。测试结果表明,该系统能够满足轨道交通系统对安全计算机平台的可靠性和安全性要求。

关键词: 二乘二取二, 同步表, 动态电路, 回路控制, 故障-安全, 冗余

Abstract: This paper designs a new dual-duplex safety-critical computer system used in the rail transport system including I/O module, CPU module and switch module. In the I/O module, the dynamic circuit design can make it achieve safe input and output data. In the CPU module, this paper presents a synchronization vote program based on Ethernet communication. In the switch module, it implements seamless switch by loop control. It is shown through functional and safety test that the dual-duplex safety-critical computer system can meet the needs of computer platform with high reliability and security.

Key words: dual-duplex, synchronization vote, dynamic circuit, loop control, fail-safe, redundancy

中图分类号: