摘 要：随着经济的快速发展,我国的农业产业结构发生了很大的变化，其中较为突出的是温室大棚种植业。鉴于大棚种植业在不同的季节都有较大的产量,所以越来越多的农民采用温室大棚种植蔬菜。温度、湿度和光照度的控制是温室大棚得到高产量的关键要素。若要测量温湿度和光照度，对于大量的大棚而言,仅靠温度测量计来实现，需要更多的人力和物力。随着农业的产业范围不断发展与扩大，采用这种传统测量大棚温湿度的方法,具有很大的局限性和不足之处.如今,自动监测棚内温湿度的装置被越来越多的用户采用。 本文设计了基于STC89C52RC单片机的温室大棚温湿度监测系统，主要包括电路设计和软件设计等.该系统以单片机为核心通过数字温湿度传感器DTH11和光照传感器BH1750对大棚的温湿度和光照度进行数据采集。传感器将采集的数据传输给单片机，单片机根据收到的数据做出相应的分析和处理，其结果显示在LCD1602液晶显示屏上。如果超出预先设定的温湿度和光照度限制范围，单片机控制开启指示灯，同时控制对应的继电器驱动打开设备工作，使大棚温湿度值达到适宜的范围值。
关键字：STC89C52RC单片机；数字温湿度传感器DTH11;光照传感器BH1750 FVI；LCD160
2液晶显示屏
Design and implementation of the greenhouse temperature and humidity detection system based on 51 single chip microcomputer
Abstract： With the development of economy, great changes have taken place in the agricultural industry in our country， one of the more prominent changes is the greenhouse planting. In different seasons， the greenhouse planting has a great production， more and more farmers use greenhouses to grow vegetables。 Controlling of temperature, humidity and illumination are the key factors of high production in greenhouse. If we need to measure the temperature and illumination， it will need more man-power and material resources for a large number of greenhouses。 With the development and expansion of agricultural industry, the traditional methods of measuring the temperature and humidity will
has many limitations and shortcomings。 Now， the automatic monitoring device of temperature and humidity is adopted by more and more farmer in the shed。
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