基于计算机并行口的多路数据采集系统设计  

Multi-channel Data Acquisition System Design Based on Computer Parallel Interface

作　　者：刘春荣[1] 

机构地区：[1]陕西理工学院,陕西723003

出　　处：《微计算机应用》2009年第4期54-57,共4页Microcomputer Applications

摘　　要：分析了传统的多路检测系统存在的缺陷,提出一种基于计算机并行口和MC145027的多路数据采集系统。该系统可通过单信号线将各测头和主机并行口连接起来,实现数据的双向传输;其测头路数可多达242路。MC145027特殊的译码方式可使数据在传输过程中具有极高的可靠性,这在强电磁干扰的工业现场具有较高的应用价值。Has analyzed the traditional multi-channel examination system existence flaw, proposes one kind multi -channel data acquisition system which based on computer parallel interface and the MC145027. This system realizes the data two - way transmission which may connects through the single signal line various gauge heads and the computer parallel interface, its gauge head way may amount to 242 groups much. The MC145027 special decoding way may enable the data to have the extremely high reliability in the transmission process, this has the high application value in the strong electromagnetic interference＇s industry scene.

关 键 词：多路检测 单信号线 计算机并行口 MC145027 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TP336[自动化与计算机技术—控制科学与工程]