基于plc控制的苗圃溫室大棚系統(tǒng)設(shè)計-全文預(yù)覽
【正文】 tic Control System Design Abstract: This article is in view of the modern agriculture demand for intelligent greenhouse and greenhouse automatic control system design. Through the analysis of the corresponding action of greenhouse actuators on the greenhouse environment, the influence of the PLC and sensor technology is applied to the greenhouse control system design, the development of the nursery greenhouse intelligent control system based on PLC control. Greenhouse environment system is a nonlinear, timevarying, lagging of large plex system is difficult to establish a system of mathematical model, the conventional control method is difficult to obtain satisfactory static and dynamic performance. The design of control system hardware part mainly posed of PLC, all kinds of sensors, sensor is to detect the temperature inside the greenhouse, humidity, carbon dioxide concentration, light, etc., the PLC is to control the bidirectional skylight, side window in greenhouse, sunshade drive, wet curtain pump, circulation fan, the platoon is wet cooling fan, our fleet air pensating valve, execute equipment such as the fill light. After the intelligent greenhouses into operation of this system can well realize the control of various environmental factors within the greenhouses adjustment, created a good growth environment for the nursery. This system operation is simple, stable and reliable work, strong practicability, adapt to the needs of the current agricultural modernization, applicability is wide and its economic benefit is very good, has good prospects for development Key words: greenhouse, temperature control, PLC 基于 PLC 苗圃大棚自動控制系統(tǒng)設(shè)計 目 錄 基于 PLC苗圃大棚自動控制系統(tǒng)設(shè)計 ................................................................................ 1 1概述 .............................................................................................................................. 1 ......................................................................... 1 ......................................................................................................... 2 2 本系統(tǒng)研究方案 ............................................................................................................ 2 .............................................................................................. 2 ............................................................................................................ 3 3系統(tǒng)硬件設(shè)計 ................................................................................................................ 4 .................................................................................................. 4 計 ....................................................................................... 5 ..................................................................................................... 6 ........................................................................................................... 7 .............................................................................................. 8 ................................................................................ 8 、側(cè)窗、風(fēng)扇、遮陽網(wǎng)的開閉系統(tǒng)設(shè)計 .............................................. 8 PLC的配置 ......................................................................................................... 9 ： ........................................................................... 10 ： ........................................................................... 10 PLC部分電路設(shè)計 .....................................................
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