本文關(guān)鍵詞： OPC UA 實(shí)時(shí)監(jiān)控 Labview 智能大棚 PLC　出處：《中國(guó)科學(xué)技術(shù)大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：時(shí)代不斷進(jìn)步,科技不斷發(fā)展,在農(nóng)業(yè)領(lǐng)域信息技術(shù)的出現(xiàn)讓生產(chǎn)過(guò)程變得智能化。智慧農(nóng)業(yè)即農(nóng)業(yè)環(huán)境智能監(jiān)控,逐漸進(jìn)入我們視線。由于現(xiàn)在我國(guó)具有的溫室監(jiān)控系統(tǒng)大多數(shù)是以硬件為基礎(chǔ),存在界面方面的直觀性和靈活性及自動(dòng)化水平較低等問(wèn)題。順應(yīng)時(shí)代進(jìn)步要求,智慧農(nóng)業(yè)結(jié)合先進(jìn)的物聯(lián)網(wǎng)及軟件技術(shù)很好的解決了現(xiàn)存的一些問(wèn)題。在工控界,數(shù)據(jù)的采集與控制中逐漸引入了虛擬技術(shù),解決了監(jiān)控系統(tǒng)的一些交互性問(wèn)題。采用虛擬儀器技術(shù)開(kāi)發(fā)的監(jiān)控系統(tǒng),在數(shù)據(jù)的處理和顯示方面更直觀、更靈活,得到各界工程師的肯定。在充分研究了我國(guó)現(xiàn)有大棚監(jiān)控系統(tǒng)具有的技術(shù)后,針對(duì)存在的一些不足,采用OPC UA和labview開(kāi)發(fā)工具設(shè)計(jì)開(kāi)發(fā)了一套用戶界面友好操作性強(qiáng)的大棚監(jiān)控系統(tǒng)。本系統(tǒng)中采用的OPCUA技術(shù),是工控領(lǐng)域使用比較多的OPC的升級(jí)版本。該技術(shù)的使用,讓不同的軟硬件商家在開(kāi)發(fā)產(chǎn)品時(shí)不用考慮接口問(wèn)題。軟件廠商不用針對(duì)每一個(gè)設(shè)備都開(kāi)發(fā)對(duì)應(yīng)的驅(qū)動(dòng),大大的節(jié)約了成本。另外,Labview具有開(kāi)發(fā)周期短,易學(xué)易用,界面友好等特點(diǎn),在數(shù)據(jù)采集和控制方面被大多數(shù)工程師采用。在labview中使用OPC UA技術(shù)使上位機(jī)和下位機(jī)間的通信更方便,實(shí)現(xiàn)現(xiàn)場(chǎng)設(shè)備中的數(shù)據(jù)實(shí)時(shí)的顯示在人機(jī)界面中。本系統(tǒng)主要包括用戶登錄,登錄用戶的管理,對(duì)大棚環(huán)境中的影響因子作實(shí)時(shí)監(jiān)控并用曲線顯示。設(shè)置環(huán)境因子的數(shù)據(jù)范圍,超范圍實(shí)現(xiàn)數(shù)據(jù)的報(bào)警,將報(bào)警的數(shù)據(jù)存到數(shù)據(jù)庫(kù),供后期排查。將實(shí)時(shí)監(jiān)測(cè)的數(shù)值存到mysql數(shù)據(jù)庫(kù)創(chuàng)建的表中。歷史數(shù)據(jù)查詢模塊,可以根據(jù)不同的時(shí)間范圍選擇不同的數(shù)據(jù)量進(jìn)行查詢顯示在曲線上,并且可以一鍵查詢一天內(nèi)和一周內(nèi)的數(shù)據(jù)。下位的泵或閥門(mén)的閉合狀態(tài)可以通過(guò)手動(dòng)或自動(dòng)兩種模式進(jìn)行操作。各模塊間相互協(xié)作運(yùn)行良好,已經(jīng)完成了系統(tǒng)的初步測(cè)試。設(shè)計(jì)前提出的功能需求基本已經(jīng)實(shí)現(xiàn),對(duì)大棚可以進(jìn)行完全監(jiān)控。
[Abstract]:With the continuous progress of the times and the development of science and technology, the emergence of information technology in the field of agriculture makes the production process intelligent. Intelligent agriculture is the intelligent monitoring of agricultural environment. Because most of the greenhouse monitoring systems in our country are based on hardware, there are some problems in interface, such as visualization, flexibility and low level of automation, which conform to the requirements of the times. Intelligent agriculture combines advanced Internet of things and software technology to solve some existing problems. In the industrial control field, data acquisition and control gradually introduced virtual technology. Some interactive problems of monitoring system are solved. The monitoring system developed by virtual instrument technology is more intuitive and flexible in data processing and display. It has been affirmed by engineers from all walks of life. After fully studying the technology of the existing greenhouse monitoring system in our country, it aims at some shortcomings. Using OPCUA and labview development tools, a set of user interface friendly and operable greenhouse monitoring system is designed and developed. The OPCUA technology is used in this system. It is an upgraded version of OPC, which is widely used in industrial control field. The use of this technology. Let different software and hardware vendors in the development of products do not have to consider the interface problem. Software manufacturers do not need to develop a corresponding driver for each device, greatly reducing the cost. Labview has the characteristics of short development cycle, easy to learn and use, friendly interface and so on. In the aspect of data acquisition and control, most engineers use OPC UA technology in labview to make the communication between upper computer and lower computer more convenient. Realize the real-time display of data in the field equipment in the man-machine interface. This system mainly includes user login, login user management. The influence factors in the greenhouse environment are monitored in real time and the curve is displayed. The data range of the environment factor is set, the alarm of the data is realized over the range, and the alarm data is saved to the database. For later search. The real-time monitoring of the value of the mysql database created in the table. Historical data query module, according to different time ranges to select different amounts of data query displayed on the curve. The closed state of the lower pump or valve can be operated in manual or automatic mode. Each module works well in cooperation with each other. The preliminary test of the system has been completed. The functional requirements put forward before the design have been basically realized, and the greenhouse can be completely monitored.
【學(xué)位授予單位】：中國(guó)科學(xué)技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：S126;TP277

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