基于光电耦合器隔离的工业现场无线数据采集与控制系统设计

在工业测控系统中,由于现场环境的复杂性,使得测控信号在强弱电之间转换及传输时极易受到干扰。设计了一种基于光电耦合器隔离的无线数据采集与控制系统。系统以MSP430F5438单片机为核心,现场测量信号通过线性光电耦合器从强电一侧精确传输到弱电一侧,单片机发出的控制信息亦通过光电耦合器进行隔离,现场测控终端与中心控制器采用Zig-Bee技术实现数据的无线传输。系统具有使用灵活、功耗低、抗干扰性强等特点。

On optocoupler isolated industrial on-site wireless data acquisition and control system design

As the complexity of industrial field environments,the signal transmission between the strong and weak power can easily be interfered with.This paper is designed a wireless data acquisition and control system based on optocoupler isolation.System uses MSP430F5438 microcontroller as the core.The signal through a linear optocoupler transfer from strong side to weak electrical side accurately,MCU control information is also sent through the optocoupler isolation. Use ZigBee technology to transmit data wirelessly between on-site terminal and central controller.System is with the use of flexible,low power consumption,immunity to interference,and so on.