70年代以来,模糊逻辑在控制工程的应用研究上取得可喜的进展,成功地解决了一批复杂的非线性控制问题。尤其近年来,设计师们开发了大批应用模糊控制技术的家用电器产品,它们的功能与自动化程度达到的新的水平,并受到广大用户普遍欢迎,人们在惊呼“模糊时代”即将到来。为了说明模糊技术是如何解决复杂的控制问题,本文讨论了红绿交通灯的智能控制方案,其目标是根据十字路口两个方向上车辆动态状况,自动判断红绿灯时间间隔,以保证最大车流量,减少道口交通堵塞。一、红绿交通灯的控制要求在大中城市,十字道口的红绿交通灯控制是保证交通安全和道路畅通的关键。当前,国内大多数城市 Since the 1970s, fuzzy logic has made remarkable progress in the application of control engineering and has successfully solved a number of complex nonlinear control problems. Especially in recent years, designers have developed a large number of home appliances with fuzzy control technology. Their functions and automation have reached a new level, and are widely welcomed by the majority of users. People are exclaiming the “fuzzy era” is coming. In order to illustrate how fuzzy technology solves complex control problems, this paper discusses the intelligent control scheme of red and green traffic lights. The goal is to automatically determine the traffic light time interval according to the vehicle dynamics in two directions at the crossroads so as to ensure the maximum traffic flow, Reduce traffic congestion at the crossing. First, the red and green traffic light control requirements In large and medium-sized cities, the crossroads of red and green traffic light control is to ensure traffic safety and the key to the smooth flow of the road. At present, most cities in China