基于AT891单片机的蔬菜大棚温度控制系统的分析.doc

目 录 摘 要 1 ABSTRACT 2 第1章 绪论 3 1.1 课题研究的背景 ABSTRACT With the development of greenhouse technology, an increasing number of greenhouse, the greenhouse, the most important factor is management and control of the temperature inside the greenhouse.?When the temperature is lower than the temperature for the growth of vegetables, vegetables will stop growing or even to freeze to death, so to control the temperature within the range for the growth of vegetables.?Before the greenhouse temperature control is controlled by manual, the workers according to the temperature of the thermometer measured value to adjust the temperature in the greenhouse.?If?only?rely on the workers?to?control?the artificialerror will?often appear,?and the production?efficiency will be greatly?lowered.?Now, with the popularization of agricultural modernization, increasing the quantity and quality of greenhouse, the previous temperature control method in operating the great limitations.?Because of the limitations, in now the vegetable greenhouses usually need to adjust the high and low temperature equipment, to control greenhouse inside temperature and meet the conditions needed for the production of temperature. The design is based on AT89C51 microcontroller as the core temperature control system design, the design of the main contents include the temperature detection circuit, temperature display circuit, temperature control circuit design.?Through the Proteus simulation results show that the system can simulate the real-time temperature inside the greenhouse, and according to the level of temperature data to adjust the temperature inside the greenhouse temperature for the growth of vegetables to meet the requirements. Key words: AT89C51 microcontrolle; Greenhouse;Temperature control 第1章 绪论 1.1 课题研究背景 [1]。在蔬菜大棚温度控制系统中应用单片机技术可以对温度起到很好的控制作用，可完成对温室大棚内部温度控制相应方面的需求。 1.2 课题的研究现状 在现代化农业生产中，以蔬菜大棚为代表的现代农业设施在现代化农业生产中发挥着巨大的作用。在国外，温室控制技术己经趋于完善。而且形成了一定的水准，但是费用相对较贵。控制系统软件也与我国的气候特点不太符合。我国的温室大棚温度控制大都采用