摘要：随着经济的发展和人民生活水平的提高，自动门的应用也越来越广泛，它已经成为宾馆、超市等现代建筑所必备的，是建筑智能化水平的重要指标。自动门控制系统作为自动门系统的控制核心，决定了自动门系统的性能。国外生产的自动门控制系统性能比较优良，但是价格偏高；国内的同类产品虽然价格便宜，但是性能较差，故障率较高。本文研究一种基于AT89C51的自动门控制系统，功能强大，运行可靠，用户操作方便，而且成本适中，在市场上有较强的竞争力。

关键词：自动门控制系统； AT89C51；

ABSTRACT：With the development of economy and living standard,automatic doors are being widely used.It is absolutely necessary to a modern building such as hotel,supermarket.As the controlling core of the automatic door,the automatic door controller determines its performance.Most of automatic door controllers that have been sold in our country are made by foreign manufactures.The performance of these products is high, but they are very expensive. Our home-made automatic door controllers are not so expensive,however,the performance is unsatisfied and the faulty rate is high. So we have developed a new kind of automatic door controller based on AT89C51. The controller has good competitive ability because it’s powerful, reliable, convenient and low-cost.

Key words:automatic door controller； AT89C51；