单片机应用系统的抗干扰技术  

Anti-interference Techniques in Single Chip Application System

作　　者：朱祥贤[1] 葛素娟[1] 

机构地区：[1]淮安信息职业技术学院,江苏淮安223003

出　　处：《现代电子技术》2007年第11期151-153,共3页Modern Electronics Technique

摘　　要：单片机控制系统已得到广泛应用,在应用现场存在着各种各样干扰源,他们对单片机应用系统的工作会产生很大影响。这些干扰可能来自应用系统自身,也可能来自供电系统、宇宙空间和工业现场。为了保证控制设备工作的安全可靠,在应用系统设计时就必须考虑到系统的抗干扰性能。分析了单片机应用系统中的干扰源、干扰途径和干扰对设备工作的影响,给出了抗干扰的硬件技术和软件技术,并介绍了看门狗的使用。工程实践中常将几个方面技术综合起来应用。Single chip control system is widely used in modern industry. There are different kinds of interference sources on the application scene. They will result in bad influences on the work of single chip application system. These interferences may come from the application system,the universe space, power supply system and the industry scene. In order to ensure the safe and dependable of the work of controlled equipments, we need consider the anti - interference capability of the application sys- tem since system designed. This paper analyzes the interference sources, interference channels and effects of interference on single chip application system and provides anti - interference techniques of both hardware and software. The usage of watch - dog is also introduced. We often combine these techniques in the engineering practices.

关 键 词：干扰 抗干扰 硬件技术 软件技术 看门狗 

分 类 号：TP802[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]