【摘要】：水環(huán)境污染預(yù)先警告、污染物的連續(xù)監(jiān)測(cè)是環(huán)境治理的前提,其作用至關(guān)重要。隨著現(xiàn)代傳感技術(shù)、計(jì)算機(jī)應(yīng)用技術(shù)以及信息傳遞技術(shù)等的發(fā)展,傳統(tǒng)的以人工現(xiàn)場(chǎng)采樣、實(shí)驗(yàn)室儀器分析為主的水質(zhì)檢測(cè)方式已經(jīng)不再符合監(jiān)測(cè)數(shù)據(jù)實(shí)時(shí)、高效、準(zhǔn)確的要求。綜合性的水質(zhì)在線監(jiān)測(cè)系統(tǒng)因?yàn)閷?duì)水環(huán)境的實(shí)時(shí)獲得數(shù)據(jù)、有效監(jiān)測(cè)預(yù)警以及對(duì)其演變趨勢(shì)的研究等方面作用重大,而將成為未來(lái)發(fā)展的新方向。因此,本文設(shè)計(jì)了基于AM3352芯片的適應(yīng)于多環(huán)境的水質(zhì)在線監(jiān)測(cè)現(xiàn)場(chǎng)控制系統(tǒng)。首先,本文在閱讀了大量水質(zhì)監(jiān)測(cè)和在線控制等相關(guān)領(lǐng)域文獻(xiàn)的基礎(chǔ)上,研究了水質(zhì)監(jiān)測(cè)的現(xiàn)狀和發(fā)展趨勢(shì),介紹了綜合性的水質(zhì)在線監(jiān)測(cè)系統(tǒng)的構(gòu)成和工作原理,同時(shí)闡述了各子系統(tǒng)的具體內(nèi)容和工作原理,并根據(jù)水質(zhì)監(jiān)測(cè)系統(tǒng)現(xiàn)有問(wèn)題提出本系統(tǒng)的功能需求以及總體設(shè)計(jì)方案。然后,根據(jù)系統(tǒng)的性能要求,從軟硬件兩個(gè)方面,進(jìn)行系統(tǒng)的方案比較和選擇,設(shè)計(jì)了一款以AM3352芯片為核心的適應(yīng)于多環(huán)境的水質(zhì)在線監(jiān)測(cè)現(xiàn)場(chǎng)控制系統(tǒng)。系統(tǒng)的硬件設(shè)計(jì)主要包括如下幾個(gè)模塊:電源模塊、處理器核心模塊、CPLD模塊、網(wǎng)口模塊、串口擴(kuò)展模塊、音頻接口模塊、LCD顯示屏接口模塊和USB接口模塊等。軟件設(shè)計(jì)先介紹了系統(tǒng)軟件的開發(fā)過(guò)程,又重點(diǎn)介紹了音頻模塊的驅(qū)動(dòng)程序設(shè)計(jì)以及相應(yīng)的音頻編解碼和語(yǔ)音端點(diǎn)檢測(cè)算法,并以GPMC和網(wǎng)口驅(qū)動(dòng)模塊為例對(duì)其它模塊的驅(qū)動(dòng)設(shè)計(jì)流程做了介紹。并對(duì)CPLD邏輯編程的設(shè)計(jì)與實(shí)現(xiàn)過(guò)程做了詳細(xì)介紹。最后,介紹了水質(zhì)在線監(jiān)測(cè)現(xiàn)場(chǎng)控制系統(tǒng)各主要功能模塊的功能測(cè)試方法、過(guò)程以及測(cè)試結(jié)果,并對(duì)系統(tǒng)進(jìn)行了可靠性測(cè)試,保證了系統(tǒng)的正常穩(wěn)定運(yùn)行。
[Abstract]:Water pollution is forewarned. Continuous monitoring of pollutants is the premise of environmental control, and its function is very important. With the development of modern sensing technology, computer application technology and information transmission technology, the traditional water quality detection method, which is based on manual field sampling and laboratory instrument analysis, is no longer in line with the real-time and efficient monitoring data. An accurate request. The comprehensive on-line monitoring system of water quality will become a new direction in the future because of the real-time data acquisition of water environment, the effective monitoring and early warning, and the study of its evolution trend. Therefore, a water quality online monitoring and control system based on AM3352 chip is designed in this paper. Firstly, on the basis of reading a lot of literature about water quality monitoring and online control, this paper studies the current situation and development trend of water quality monitoring, and introduces the composition and working principle of a comprehensive water quality online monitoring system. At the same time, the concrete contents and working principles of each subsystem are expounded, and the functional requirements and the overall design scheme of the system are put forward according to the existing problems of the water quality monitoring system. Then, according to the performance requirements of the system, comparing and selecting the system scheme from two aspects of software and hardware, a water quality on-line monitoring field control system with AM3352 chip as the core is designed. The hardware design of the system mainly includes the following modules: power module, processor core module, network interface module, serial port expansion module, audio interface module, LCD display interface module and USB interface module. The software design first introduces the development process of the system software, and then introduces the driver design of the audio module and the corresponding audio codec and speech endpoint detection algorithm. The driver design flow of other modules is introduced with the examples of GPMC and Netport driver module. The design and implementation of CPLD logic programming are introduced in detail. Finally, the paper introduces the function test method, process and test results of the main function modules of the on-line water quality monitoring field control system, and carries on the reliability test to ensure the normal and stable operation of the system.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X84

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