基于单片机的温湿度控制系统_.doc

山东工商学院2012届毕业论文 PAGE PAGE VIII 基于单片机的温湿度控制系统 [摘要] 随着改革开放，坚持科学发展观，促进农业快速发展，特别是90年代以来，我国的设施园艺事业得到迅猛的发展，以花卉为主的作为观赏的礼品的植物设施栽培在大江南北遍地开花，设施园艺被看作是21世纪最具活力的新产业。温室是现代园艺生产所必需的基本设备，用它可有效地控制某些环境因素，如温度、光照、湿度、二氧化碳浓度等，生产优质的花卉产品。因此，温室的产生，可以说是人们与自然界斗争的一种产物。至今，温室设施对人类经济生活中的作用和地位越来越明显，关系越来越密切。温室是一种可以改变植物生长环境、为植物生长创造最佳条件、避免外界四季变化和恶劣气候对其影响的场所。 本文利用STC89C52单片机设计一个温室的温湿度控制系统，对给定的温湿度进行控制并实时显示，用来满足恒温湿车间控制、大棚温湿度控制等工农业生产领域需要，要求温湿度测量响应时间快、长期稳定性好，抗干扰能力强，具有较高的应用价值。 [关键词] 89C52 DHT11 EEPROM存储电路 LCD1602 温湿度 Temperature and humidity control system based on MCU [Abstract] With the reform and opening up, adhere to the scientific outlook on development, promote the rapid development of agriculture, especially since 90 time, our country horticultural career to get swift and violent development, mainly as an ornamental flower gift plant facility cultivation in protected horticulture blossom everywhere on both sides of the Changjiang River, is considered to be the most dynamic new industry in twenty-first Century.Greenhouses is necessary to produce the basic equipment in the Modern horticultural, it can effectively control certain environmental factors, such as temperature, humidity, light, etc, to produce high quality carbon dioxide concentrations of flowers. Therefore, a greenhouse, for people and nature is a product of the struggle. So far, the greenhouse facilities for human economic life function and status is more and more obvious, a closer relationship. Greenhouse is a kind of plant growth environment, to be changed for plant growth to create the best conditions, avoid changing seasons and severe weather outside of its impact. This paper uses the STC89C52?single-chip to design a?greenhouse?temperature and humidity control system. It control and display for a given temperature and humidity in real time, to meet the constant temperature humidity workshop control, greenhouse temperature and humidity control in industrial and agricultural production areas in need. And the system require of tem