| 引用本文: | 蒋新革,王平,古丽孜娜,李玉强.基于单片机与电话网实现远程测控[J].电力自动化设备,2006,(8):56-58 |
| .Singlechip-based remote measuring and control via telephone network[J].Electric Power Automation Equipment,2006,(8):56-58 |
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| 摘要: |
| 以单片机为下位机,负责检测控制点实时数据采集和实时处理;以电话网络为传送通道,以PC机作为上位机,负责对各检测控制点的下位机采集到的实时数据进行处理,并向各下位机发出控制命令,实现远程控制。现场测控单元以下位单片机8031为中心,根据检测点需求扩展CMOSEPROM27128、RAM6116为存储设备,扩展可编程I/O芯片8155为外界输入/输出接口,扩展TLC1543为模/数转换器完成信息采集和控制;采用比例积分微分(PID)为基本控制算法;上位管理PC机与下位单片机8031之间采用异步串行通信方式,单片机借助RS-232经过Modem链接到公用电话线实现数据通信。给出了该远程测控系统的硬件原理图及软件主程序流程图。 |
| 关键词: 远程控制,单片机,Modem,电话网 |
| DOI： |
| 分类号:TM764 |
| 基金项目:新疆伊犁州科学研究与技术开发计划(YZ200601010)~~ |
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| Singlechip-based remote measuring and control via telephone network |
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JIANG Xin-ge WANG Ping GULI Zi-na LI Yu-qiang
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| Abstract: |
| The singlechip is used in LCU(Local measuring and Control Unit) as a subordinate computer to acquire and process field data real-timely.The superordinate computer(PC) gets the real-time data from subordinate computers and sends commands to LCUs for remote control.The LCU applies singlechip(8031) as its core and expands memory chips(CMOSEPROM 27128 and RAM 6116),programmable peripheral I / O interface chips(8155) and ADC(Analog Digital Converter) chips(TLC 1543) according to the amount of test points.PID(Proportional-Integral-Derivative) is used as the basic control algorithm.Asynchronous serial communication is adopted between PC and LCU via RS-232 port,modem and public telephone line.The hardware principle and software flowchart of the remote measuring and control system are offered. |
| Key words: remote measuring and control,singlechip,Modem,telephone network |
