摘要
针对工业现场存在多种变送输出信号需同时显示的问题,为简化及更好地管理现场显示装置,设计了一种适用于多变送输出场合的智能现场显示仪。采用STC12C5A60S2单片机作为核心控制器,利用RCV420完成4 mA^20 mA变送信号的电流/电压转换,通过仪表专用模数转换器MAX1272实现对电压信号的采集;重点阐述了参数标定、线性修正以及RS232通讯模块的软件实现方法。用户可根据现场环境的不同利用红外遥控器配置仪表参数,操作简单、成本低、安装方便以及可靠性稳定性高。
In view of various transmitter output signal that needs to display at the same time in the industrial field,and in order to simplify and manage field display device better,a kind of intelligent industrial field display is introduced.It is applicable to a variety of transmitter output signal. STC12C5A60S2 single-chip microcomputer is used as the core controller. RCV420 is used to complete the current / voltage conversion of 4 mA ~ 20 mA analog signal. The instrument dedicated ADC MAX1272 is applied to complete the voltage signal acquisition. The software implementation method of the parameter calibration,linear correction and RS232 communication module is represented in detail. The user can achieve the infrared remote control operation according to the different environment configuration parameters. The display is simple operation,low cost,convenient installation and high stability reliability.
出处
《电子器件》
CAS
北大核心
2013年第5期728-732,共5页
Chinese Journal of Electron Devices
基金
国家自然科学基金青年基金项目(61201407)
关键词
智能仪表
多变送信号
STC单片机
远程操控
intelligent instrument
various transmitter signal
STC microcontroller
remote control
作者简介
徐先峰(1982-),男,汉族,博士,长安大学电子与控制工程学院硕士生导师,主要研究方向为盲信号处理,xxf@chd.edu.cn;
魏文(1990-),男,硕士研究生,主要研究方向为控制理论与控制工程,wei—wenemail@163.com。