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当前我国绝大多数城市交通信号灯仍采用定时分配的控制方式,并不能满足城市发展中交通流量不断变化的状况。目前一些改进的交通灯控制方式也只是简单地将交通周期分为高峰期与一般时期,不具备实时跟踪性能。提出了一种温湿度感应的交通灯配时方案。该方案以AT89C51单片机为核心,采用温湿度传感器对当前温湿度进行采集,利用DS1320时钟芯片提供时间日历,对当前的气候、天气及时段进行判断,从而对交通灯配时进行合理配置,设定情景相对应的工作模式。系统设计通过Protues软件仿真验。
At present, most urban traffic lights in our country still adopt the control method of timed distribution, which can not meet the changing traffic flow in urban development. At present, some improved traffic light control methods simply divide the traffic cycle into peak periods and normal periods and do not have real-time tracking performance. A temperature and humidity sensing traffic light timing scheme was proposed. The program AT89C51 microcontroller as the core, the use of temperature and humidity sensors to collect the current temperature and humidity, the use of DS1320 clock chip to provide time calendar, the current climate, weather and time to judge, and thus the traffic lights with a reasonable allocation of time settings Scenario of the corresponding mode of operation. System design through Protues software simulation.