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Deep Well Water Source Remote Monitoring And Control Technology Of Urban Water Network

Posted on:2017-05-13Degree:MasterType:Thesis
Country:ChinaCandidate:Y M ZhangFull Text:PDF
GTID:2272330482497128Subject:Mechanical engineering
Abstract/Summary:PDF Full Text Request
Water is indispensable in the process of production and living,and it is the lifeblood of a city’s survival and development,in which water conservancy construction plays a important role.With rapid development of urban construction,the requirement of water quality is higher and higher.Especially, with the rapid development of computer technology in recent years, it is a development trend that the traditional water supply will be replaced by intelligent water supply system in the future.In this paper, current requirements the city water faces with and opportunities brought about by science and technology development was combined.In line with the design principle of safe and reliable, the measurement and control accurate, efficient and convenient management,this paper considered fully about the equipment of performance,characteristic,water treatment technology and automation system, and propose the remote monitoring system of urban water deep well water source.and provided a feasible technical scheme to ensure the normal operation of automatic control system of urban water.The main content of city water remote monitoring system design included the following aspects:1. Based on Lab VIEW in urban water deep well water source remote control system monitoring software has been designed.Making full use of the friendly programming environment and advantages of short development cycle of Lab VIEW 2012 software, this paper made corresponding design research to city water in deep well water source well, the demand of the high water level and pressure of the pool monitoring system, and Friendly man-machine interface has been realized.2. The water level control system of urban deep well water supply network based on PID control technology has been designed.The system uses the incremental PID control algorithm, determines the transfer function of PID control through the establishment of urban water deep well pump water supply and the water mathematical model of the pool water level high,and simulated and optimizated the PID controller in the MATLAB/SIMULINK environment.3.This system’s core is STM32F103 ZET, Based on embedded technology,remotecontrol system of the machine of deep well pump motor variable frequency speed regulation system was been developed. as control core of lower machine, STM32F103 ZET process data and information which is collected by pressure sensors and inputted through A/D converter, output analog current signal through the D/A converter, control inverter and adjust deep well pump motor speed using standard 4-20 m A current signal.4. In this paper, remote data communication protocol in digital radio transmission medium is designed and developed. Upper computer(PC) communication with the lower computer through data transmission,The lower computer output size controlled current to control frequency converter,inverter control pump motor speed,And the voltage of the pump, water pressure was monitored through the sensor and transfered to the host computer in real-time.5.The remote control system of urban water supply network is completed.In this paper,the simulation debugging experiment was completed in DEPUSH water tank experiment instrument. Test results show that the system performance is stable and reliable,The monitoring information is accurate and the design technique is reached.
Keywords/Search Tags:water level control, frequency control of motor speed, PID control, embedded technology, LabVIEW
PDF Full Text Request
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