无人值守嵌入式设备的看门狗监控系统  

Watchdog Guarding System for Unattended Embedded System Equipments

作　　者：汪培[1] 胡文倩[1] 李彬雅[1] 丁兵[1] 李汪彪[1] 苏伟达[1] 吴允平[1] 

机构地区：[1]福建师范大学光电与信息工程学院,福州350007

出　　处：《电子器件》2013年第6期854-858,共5页Chinese Journal of Electron Devices

基　　金：教育部科技研究重点项目(212087);福建省科技厅重大项目(2011H6009);福建省高校新世纪优秀人才支持计划项目(JA11037);福建省教育厅项目(JA10078)

摘　　要：针对无人值守嵌入式设备应用环境复杂多变、系统可靠性要求越来越高的特点,设计了一种看门狗监控系统,它采用TINY13微控制器来实现系统的逻辑功能,并且提供超休眠时间自动唤醒功能等基于三重故障修复机制设计的冷、热启动修复方法,使无人值守嵌入式设备无需人为干预就能快速地、最大可能地恢复至正常工作状态,有助于提高系统的可靠性,对于保障无人值守嵌入式设备的长期稳定运行、降低设备维护成本等方面具有重大意义。As application environment for unattended embedded systems equipments is complex and changeable, and requirements of reliability is getting higher and higher, this paper designed a watchdog guarding system. The system uses a TINY13 MCU to achieve logic purpose of it,and it provides some features such as hot and cold restart which is based on a triple error handling and recovery mechanisms. As a result, system has the greatest possibility to return to normal working condition without manual intervention, which is helpful to improve system reliability, and it plays a significant role for ensuring a long-term stable operation of the unattended embedded system equipments and reducing the equipments＇ maintenance costs.

关 键 词：无人值守嵌入式设备 可靠性 看门狗 故障修复机制 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]