单片微型机测控系统的可靠性设计  

The Reliability Design of Single Chip Microcomputer Control System

作　　者：文桦[1] 

机构地区：[1]黄淮学院物理系,河南驻马店463000

出　　处：《现代电子技术》2005年第17期40-41,44,共3页Modern Electronics Technique

摘　　要：单片微型机控制系统的可靠性是由多种因素决定的,其中系统硬件的抗干扰性是决定系统可靠性的重要方面。为提高单片机系统的抗干扰能力,使产品能适应恶劣的工作环境,满足可靠性方面更高标准的要求,设计用户系统时应尽量采用可靠性措施。但是,由于实际控制系统千差万别,干扰源也不尽相同。因此,设计用户系统时应分别考虑。通过分析单片微型机控制系统在实际应用中存在的3条主要干扰渠道:空间干扰、过程通道干扰和供电系统干扰,然后针对相应情况给出了一些解决措施。重点讨论了软件和硬件相结合的解决方案和简单看门狗电路的设计。The single chip microcomputer control system is related to various factors among which the hardware plays an important role. In order to improve the anti -interference ability and fit the bad working environment. The designer should apply the reliable methods. Since the practical control system are various , so are the disturbances, the article first analyses three main disturbances,then provides several methods of solving those problems, and puts focus on the combination of software and hardware , and the design of Watchdog circuit.

关 键 词：看门狗 抗干扰 单片微型机 可靠性设计 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]