【正文】 優(yōu) 良 中 及格 不及格 答辯小組長簽字 年 月 日 摘要： 可編程控制器是一種應(yīng)用很廣泛的自動控制裝置，它將傳統(tǒng)的繼電器控制技術(shù)、計算機(jī)技術(shù)和通訊技術(shù)融為一體，具有控制能力強(qiáng)、操作靈活方便、可靠性高、適宜長期連續(xù)工作的特點(diǎn)，非常適合溫度控制的要求。 編程時調(diào)用了編程軟件 STEP 7 Micro WIN中自帶的 PID 控制模塊，使得程序更為簡潔，運(yùn)行速度更為理想。 人機(jī)界面 Abstract: Programmable Logic Controller (PLC) is a kind of automatic control equipment which is widely used in the industrial manufacture. It merges the traditional control technology, puter and munication technologies with a strong ability to control, flexible operation, high reliability and suitable for longterm characteristics of continuous work. It is very suitable for temperature control requirements. In the industrial field, with the rapid increase in the degree of automation, it is more and more important to monitor the process of control system for the users. The emergence of humanmachine interface meets the needs of users. Manmachine interface can prehensively monitor the control system, including process monitoring, alarm, data logging and other functions, so that the control systems have bee userfriendly operation, the process of visualization and it will play more and more important part in the field of automatic control. we use the PID control arithmetic software module which is contained in the program software STEP 7 Micro WIN so that the program looks easier and operates more quickly. In order to monitor the control system and process data in actual time, we designed Human Machine Interface(HMI)with the configuration software Kingview. The result of experiment proves that this temperature control system could run quickly, accurately and have good stability, which is the advantage of the control system. This control system has been widely used in the industrial temperature control field. With the continuous development of automatic science and technology, highprecision, intelligent, userfriendly temperature control system is the inevitable trend of development at home and abroad. Keywords: Temperature Control PLC HMI 目錄 ................................ 1 溫室產(chǎn)業(yè)的現(xiàn)狀 ....................................... 1 發(fā)達(dá)國家溫室產(chǎn)業(yè)的現(xiàn)狀 ............................ 1 國內(nèi)溫室產(chǎn)業(yè)的現(xiàn)狀及存在的問題 .................... 2 國內(nèi)外溫室控制技術(shù)的研究現(xiàn)狀 ......................... 4 國外溫室控制技術(shù)的研究現(xiàn)狀 ......................... 4 國內(nèi)溫室控制技術(shù)的研究現(xiàn)狀 ......................... 5 溫室環(huán)境控制技 術(shù)的發(fā)展趨勢 ........................... 6 ........................................... 7 溫室大棚內(nèi)重要參數(shù)的調(diào)節(jié)與控制 ....................... 7 溫度的調(diào)節(jié)與控制 .................................. 7 濕度的調(diào)節(jié)與控制 .................................. 7 溫度、濕度之間的耦合 .............................. 8 光照的調(diào)節(jié)與控制 .................................. 8 二氧化碳含量的調(diào)節(jié)與控制 .......................... 8 ......................................... 8 系統(tǒng)分析 .............................................. 9 控制系統(tǒng) ............................................. 10 控制系統(tǒng)設(shè)計目標(biāo) ................................. 10 控制模式 ................................................................................... 10 控制方案 .......................................... 10 .................................. 10 系統(tǒng)的硬件組成 ....................................... 10 系統(tǒng) 的軟件設(shè)計 ...................................... 11 溫室控制系統(tǒng) PLC 軟件的設(shè)計 ........................ 11 溫度控制 .......................................... 11 濕度控制 .......................................... 12 光照控制 .......................................... 12 控制系統(tǒng)軟件設(shè)計 ..................................... 12 溫度采集程序 ......................................... 13 PID 程序設(shè)計 ............................................14 系統(tǒng) 的組態(tài)監(jiān)控軟件的設(shè)計 ..............................17 和 展望 .............................................. 17 結(jié)論 ................................................ 17 進(jìn)一步研究方向 ...................................... 17 參考文獻(xiàn) .................................................. 17 致 謝 .......................................................................................... 20 姜啟洲：基于 PLC的智能溫室控制系統(tǒng)設(shè)計 1 溫室產(chǎn)業(yè)的現(xiàn)狀 發(fā)達(dá)國家溫室產(chǎn)業(yè)的現(xiàn)狀 溫室產(chǎn)業(yè)及相關(guān)技術(shù)在國內(nèi)外的發(fā)展速度很快。 歐美等國家在 30 年代就相繼建立了人工氣候室。 70 年代中期，荷蘭、日本、美國、意大利等國家已使用微型計算機(jī)控制植物生長環(huán)境。除了對溫室進(jìn)行監(jiān)控外，計算機(jī)優(yōu)化環(huán)境參數(shù)、節(jié)能、節(jié)水及設(shè)施裝備的可靠性等很多方面都取得了很好的技術(shù)成果，并推出了許多新產(chǎn)品。資源相對貧瘠的荷蘭溫室生產(chǎn)最值得研究。荷蘭大量投資與溫室相關(guān)的基礎(chǔ)研究。首先是我國人口 眾多。農(nóng)業(yè)環(huán)境綜合控制作為農(nóng)作物優(yōu)質(zhì)、高效、高產(chǎn)的手段，是農(nóng)業(yè)現(xiàn)代化的重要標(biāo)志，隨著社會經(jīng)濟(jì)的發(fā)展，以溫室為代表的設(shè)施農(nóng)業(yè)將成為現(xiàn)代農(nóng)業(yè)的發(fā)展主要方向之一，成為 21 世紀(jì)最有活力的農(nóng)業(yè)新產(chǎn)業(yè)。這次較大規(guī)模姜啟洲：基于 PLC的智能溫室控制系統(tǒng)設(shè)計 3 的引進(jìn)