基于RM48的双机热备ATO设计  

ATO design of hot standby architecture based on RM48 processor

作　　者：马龙[1] 李坤妃[1] 于振宇[1] 步兵[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《铁路计算机应用》2013年第6期38-40,共3页Railway Computer Application

基　　金：国家高技术研究发展计划(2011AA110502)

摘　　要：列车自动驾驶(ATO)是列车自动控制系统(ATC)的重要组成部分。本文根据全自动无人驾驶系统(FAO)中ATO的功能需求和RM48安全芯片的安全架构,提出了基于RM48的ATO双机热备结构设计方案。利用马尔科夫模型研究了双机热备ATO系统的可靠性,并且通过仿真工具分析了双机热备ATO和单机ATO的可靠性。仿真结果表明,双机热备ATO的可靠度比单机ATO具有明显的优势,完全可以满足全自动无人驾驶的可靠性需求。Considering the importance of the Automatic Train Operation （ATO） in the Automatic Train Control System （ATC）, this paper put forward a design proposal of the ATO hot standby architecture based on its functional requirements in Fully Automatic Operation （FAO） and the safety processor of RM48 chip. The author studied on the reliability of the hot standby adopted by ATO through Markov Model, and then compared with the reliability of the single ATO by simulator. The results indicated that the former was much more reliable and capable of meeting the reliability requirements of FAO.

关 键 词：全自动无人驾驶 列车自动驾驶 双机热备结构 可靠性 

分 类 号：U284.482[交通运输工程—交通信息工程及控制]