AT90CAN128的双机热备结构继电器驱动系统设计  

Design of Relay Driver System with Two-shipper Hot Spare Based on AT90CAN128

作　　者：阮若琳 

机构地区：[1]兰州交通大学光电技术与智能控制教育部重点实验室,兰州730070

出　　处：《单片机与嵌入式系统应用》2014年第12期21-24,共4页Microcontrollers & Embedded Systems

摘　　要：提出了一种高可靠性单片机控制的安全型继电器驱动系统,采用第三方监测下的双机热备结构。通过对双机热备冗余结构的分析,比较了此结构下的两种工作模式的可靠性。系统硬件采用3片AT90CAN128单片机作为控制核心,通过CAN总线与上位机通信,在此基础上规划软件流程,保证系统的可靠性。The paper proposes a high reliable safety relay driving system controlled by microcontroller,which adopts two-shipper hot spare configuration under the third-party monitoring.The reliability of two working modes of two-shipper hot spare system is compared after analyzing them.The system uses three pieces of AT90CAN128 microcontrollers as the control core,and it communicates with upper computer by CAN bus.Then programs the software flow chart to ensure the reliability of the system.

关 键 词：双机热备 AT90CAN128 驱动系统 安全型继电器 可靠性 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]