摘 要中国农业的进展必须走现代化农业这条道路，随着国民经济的迅速增长，农业的讨论和应用技术越来越受到重视，特别是温室大棚已经成为高效农业的一个重要组成部分。现代化农业生产中的重要一环就是对农业生产环境的一些重要参数进行检测和控制。本系统以 AT89C51 单片机为控制核心，利用温度传感器 AD590 对蔬菜大棚的温度进行实时采集与控制，实现温室温度的自动控制。本系统由单片机系统模块、温度采集模块、加热模块、降温模块、按键以与显示模块六个部分组成。可以通过按键设定温室的温度值，采集的温度和设定的温度通过 LED 数码管显示。当所设定的温度值比采集的温度大时，通过加热器加热，以达到设定值；反之，开启降温风扇，以快速达到降温效果。通过该系统，对蔬菜大棚的温度进行有效、可靠地检测与控制，从而保证大棚作物在最佳的温度条件下生长，提高质量和产量。关键词：单片机；温度传感器；温度显示；键盘输入；温室AbstractDevelopment of China's agricultural must take this path of modern agriculture, with the rapid growth of the national economy, agricultural technology of research and application takes more and more attention, especially in greenhouses which have become an important part of effective agriculture. One of the important parts of modernagricultural production issome important parameters for detection and control. This system takes the AT89C51 singlechip as the control core, using the temperature sensor AD590 to carry on real-time gathering and controlling to the greenhouse of vegetables, so it can realizes auto-control to the greenhouse’s temperature. This system contains the miniature singlechip system module, the temperature gathering module, the heatermodule, the drop-temperature module, the key pressed module and the display module. The gathering temperature or the setting temperature is displayed through the seven-seg LED. It can be established new temperature value in the greenhouse through pressing buttons, when this temperature value is hi...
