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基于单片机的温室自动控制控制系统设计与实现.docx

来源：花匠小妙招时间：2024-11-30 10:34

南京邮电大学通达学院2020届本科生毕业设计（论文）作者：大月亮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种植业。鉴于温室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种植蔬菜。温度控制是温室得到高产量的关键要素。若要测量温度和光照度，对于大量的温室而言，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，采用这种传统测量温室温度的方法，具有很大的局限性和不足之处。如今，自动监测棚内温度的装置被越来越多的用户采用。本文设计了基于STC89C51单片机的温室温度监测系统，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度传感器DHT11和光敏电阻对温室的温湿度和光照强度进行数据采集，也可以通过二氧化碳传感器将采集的二氧化碳数据传输给单片机，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。通过继电器控制相关电气设备进行自动化的环境改善。整体的设计融入了智能化和自动化的设计思想，非常具有现实意义。关键词：温室；STC89C51；温湿度传感器；电机 ABSTRACT With the rapid development of economy, great changes have taken place in the structure of agricultural industry in China, especially in greenhouse planting. In view of the large output of greenhouse planting in different seasons, more and more farmers use greenhouse to grow vegetables. Temperature control is the key factor to get high yield in greenhouse. If we want to measure temperature and illuminance, for a large number of greenhouses, we need more manpower and material resources. With the continuous development and expansion of agricultural industry, the traditional method of measuring greenhouse temperature has great limitations and shortcomings. Nowadays, more and more users use the device to automatically monitor the temperature in the shed. In this paper, the temperature monitoring system of greenhouse based on STC89C51 single chip microcomputer is designed, mainly including circuit design and software design. In this system, the temperature, humidity and light intensity of the shed are collected by the digital temperature sensor DHT11 and photosensitive resistance, and the collected carbon dioxide data can also be transmitted to the single chip microcomputer through the carbon dioxide sensor. The single chip microcomputer makes corresponding analysis and processing according to the received data, and the results are displayed on the LCD1602 LCD. If the preset temperature is exceeded, the buzzer will give an alarm. At the same time, it can also control the relat