本文關(guān)鍵詞：PLC和GPRS技術(shù)在遠(yuǎn)程供水系統(tǒng)中的設(shè)計(jì)與應(yīng)用　出處：《電子科技大學(xué)》2013年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 遠(yuǎn)程供水 自動(dòng)監(jiān)控 GPRS RTU

【摘要】：供水系統(tǒng)是保障社會(huì)穩(wěn)定和經(jīng)濟(jì)發(fā)展的基礎(chǔ)設(shè)施。現(xiàn)今，國(guó)內(nèi)外具有不同特色的輸水監(jiān)控系統(tǒng)已被廣泛采用，降低了供水成本，提高了供水效率。目前，我國(guó)大多數(shù)供水系統(tǒng)都是采用繼電器或獨(dú)立的PLC控制，對(duì)于現(xiàn)代化工企業(yè)用水，水源可能距離廠(chǎng)區(qū)有幾公里或幾十公里，這樣遠(yuǎn)距離的供水系統(tǒng)在進(jìn)行遠(yuǎn)程監(jiān)視和控制方面存在著電纜敷設(shè)、信號(hào)傳輸、遠(yuǎn)程監(jiān)控等問(wèn)題。 本課題利用WINCC的梯形圖程序語(yǔ)言進(jìn)行軟件設(shè)計(jì)，并使用西門(mén)子PLCS7-300控制系統(tǒng)和GPRS兩者技術(shù)融為一體的信號(hào)傳輸、監(jiān)控方法，實(shí)現(xiàn)了水源地供水裝置遠(yuǎn)程監(jiān)控系統(tǒng)的實(shí)時(shí)數(shù)據(jù)監(jiān)控、實(shí)時(shí)報(bào)警、歷史數(shù)據(jù)查詢(xún)、操作日志查詢(xún)等功能，提高了設(shè)備運(yùn)行監(jiān)控的安全性、節(jié)約了成本、提高了企業(yè)的經(jīng)濟(jì)效益。 本課題以?xún)嫉V國(guó)宏化工有限責(zé)任公司遠(yuǎn)程水源地供水裝置為載體，深入研究了GPRS技術(shù)在遠(yuǎn)程供水自動(dòng)監(jiān)控系統(tǒng)的設(shè)計(jì)和實(shí)現(xiàn)，主要做了如下工作： 1、根據(jù)遠(yuǎn)程監(jiān)控系統(tǒng)的實(shí)際需求，給出了總體設(shè)計(jì)思想及其基于數(shù)據(jù)產(chǎn)生一數(shù)據(jù)傳輸一數(shù)據(jù)處理的工作流程圖。在對(duì)目前幾種常用通信方式及控制設(shè)備進(jìn)行分析的基礎(chǔ)上，確定了通信方式及硬件設(shè)備的選型，，設(shè)計(jì)了遠(yuǎn)程監(jiān)控系統(tǒng)的總體結(jié)構(gòu)。 2、給出了測(cè)控系統(tǒng)的功能與結(jié)構(gòu)；基于PLC設(shè)計(jì)并實(shí)現(xiàn)了數(shù)據(jù)采集、命令響應(yīng)、現(xiàn)場(chǎng)控制等軟件；并通過(guò)語(yǔ)句表等編程語(yǔ)言方法對(duì)軟件進(jìn)行了設(shè)計(jì)與實(shí)現(xiàn)。 3、具體分析了TCP／IP(傳輸控制／網(wǎng)際)、UDP(用戶(hù)數(shù)據(jù)報(bào))、Modbus三種協(xié)議的特點(diǎn)，建立起監(jiān)控中心、移動(dòng)網(wǎng)關(guān)、DTU(數(shù)據(jù)終端設(shè)備)、RTU(遠(yuǎn)程測(cè)控單元)之間高效的數(shù)據(jù)通道，通過(guò)數(shù)據(jù)傳輸實(shí)例，研究了基于GPRS(通用無(wú)線(xiàn)分組業(yè)務(wù))的無(wú)線(xiàn)DDN(數(shù)字?jǐn)?shù)據(jù)網(wǎng))解決方案，并確定了GPRS終端設(shè)備的選型，實(shí)現(xiàn)了數(shù)據(jù)準(zhǔn)確、高效的傳輸。 本課題設(shè)計(jì)完成后，對(duì)系統(tǒng)性能與各控制功能分別進(jìn)行了測(cè)試，所有測(cè)試項(xiàng)目均順利通過(guò)，目前已上線(xiàn)運(yùn)行，運(yùn)行結(jié)果表明該DCS控制系統(tǒng)具有響應(yīng)速度塊、控制精度高、控制品質(zhì)好等優(yōu)點(diǎn)，達(dá)到了設(shè)計(jì)要求。 設(shè)計(jì)的遠(yuǎn)程供水自動(dòng)監(jiān)控系統(tǒng)現(xiàn)已在國(guó)宏輸水管網(wǎng)中運(yùn)行。監(jiān)控中心對(duì)系統(tǒng)的綜合分析展示了系統(tǒng)整體運(yùn)行的效果，證明流量控制達(dá)到了預(yù)期目標(biāo)，實(shí)現(xiàn)了可觀(guān)的經(jīng)濟(jì)效益和良好的社會(huì)效益。
[Abstract]:Water supply system is the infrastructure to ensure social stability and economic development. Nowadays, water transmission monitoring system with different characteristics at home and abroad has been widely used, reducing the cost of water supply and improving the efficiency of water supply. Most water supply systems in China are controlled by relays or independent PLC. For modern chemical enterprises, the water source may be several kilometers or several ten kilometers from the factory area. The remote water supply system has many problems in remote monitoring and control, such as cable laying, signal transmission, remote monitoring and so on. In this paper, we use the WINCC ladder diagram language to design the software, and use Siemens PLCS7-300 control system and GPRS technology to integrate the signal transmission and monitoring method. The functions of real-time data monitoring, real-time alarm, historical data query and operation log query are realized in the remote monitoring system of water source water supply device. The security of equipment operation monitoring is improved and the cost is saved. The economic benefit of the enterprise has been improved. Taking the remote water source water supply device of Yankuangguohong Chemical Co., Ltd as the carrier, the design and implementation of the GPRS technology in the remote water supply automatic monitoring system are studied. The main work is as follows: 1. According to the actual requirements of remote monitoring system. The general design idea and the working flow chart of data transmission and data processing based on data generation are given. Based on the analysis of several commonly used communication modes and control equipment at present. The mode of communication and the selection of hardware are determined, and the overall structure of remote monitoring system is designed. 2. The function and structure of the measurement and control system are given. Data acquisition, command response, field control and other software are designed and implemented based on PLC. The software is designed and implemented by programming language such as statement table. 3. The characteristics of TCP / IP (Transmission Control / Internet / UDP) protocol are analyzed in detail, and the monitoring center and mobile gateway are established. DTU (data terminal equipment) between RTU (remote measurement and control unit) between efficient data channels, through data transmission examples. The solution of wireless DDN (Digital data Network) based on GPR (General Wireless packet Service) is studied. The selection of GPRS terminal equipment is determined and the accurate and efficient data transmission is realized. After the design of this project is completed, the system performance and control function are tested, all the test items are passed smoothly, and are now running online. The running results show that the DCS control system has the advantages of response speed block, high control precision and good control quality, and meets the design requirements. The designed remote water supply automatic monitoring system has been running in the Guohong water pipeline network. The comprehensive analysis of the system by the monitoring center shows the effect of the whole operation of the system and proves that the flow control has achieved the expected goal. Achieved considerable economic benefits and good social benefits.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TU991

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