仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
Instrument Technique and Sensor
2015年
11期
78-80
,共3页
pH%C8051F021单片机%GPRS%RS485%模糊控制%自动加酸
pH%C8051F021單片機%GPRS%RS485%模糊控製%自動加痠
pH%C8051F021단편궤%GPRS%RS485%모호공제%자동가산
pH%C8051F021 microcontroller%GPRS%RS485%fuzzy control%automatic acid adding
文中介绍了一种高精度双路pH在线监测仪的设计方案,该监测仪采用C8051F021单片机为主控制器,采用算术平均滤波法进行数据处理,实现了对多路测量信号的采集处理。采用模糊PID控制方法,解决pH值的非线性、滞后环节问题,完成自动加酸控制。可以通过4~20 mA的标准电流输出和RS485通讯方式传输数据,也可用GPRS,通过因特网把测量数据传到上位机,具有较强的工业使用价值。
文中介紹瞭一種高精度雙路pH在線鑑測儀的設計方案,該鑑測儀採用C8051F021單片機為主控製器,採用算術平均濾波法進行數據處理,實現瞭對多路測量信號的採集處理。採用模糊PID控製方法,解決pH值的非線性、滯後環節問題,完成自動加痠控製。可以通過4~20 mA的標準電流輸齣和RS485通訊方式傳輸數據,也可用GPRS,通過因特網把測量數據傳到上位機,具有較彊的工業使用價值。
문중개소료일충고정도쌍로pH재선감측의적설계방안,해감측의채용C8051F021단편궤위주공제기,채용산술평균려파법진행수거처리,실현료대다로측량신호적채집처리。채용모호PID공제방법,해결pH치적비선성、체후배절문제,완성자동가산공제。가이통과4~20 mA적표준전류수출화RS485통신방식전수수거,야가용GPRS,통과인특망파측량수거전도상위궤,구유교강적공업사용개치。
This paper introduced the design scheme of high precision dual pH online monitor .The monitor uses C8051F021 microcontroller-based controller ,which uses the method of arithmetic mean filtering for date processing and achieves the acquisition and processing of multi-channel signal measurement.This pH value measurement meter adopts the method of fuzzy control to re -solve the problem that pH has the characteristic of non-linearityl,ong lag ,and it completes the control of automatic acid adding .It can transmit date remotely with standard current of 4~20mA and RS485communication,it can also use GPRS and through the In-ternet to put the measurement data to the PC .This monitor has high value for industrial use .