摘要
本控制系统以STC89C58RD单片机为控制器,主要由恒流源电路、时钟定时电路、显示电路、光敏感应电路、红外接收电路、声光报警电路等组成。能设定路灯(LED)开灯关灯时间(用LCD12864显示相关信息)。路灯(LED)通过恒流源电路正常工作,即使遇到短路、电压不稳定等情况也不会烧掉,电路起恒流保护作用。而系统遇到环境明暗变化时,路灯会自动关闭和打开,并且根据道路上交通状况自动调节亮灯情况,且有定时功能。
The control system is based on MCU STC89C58RD,comprising constant-current source、timing circuit、display circuit、photosensitive circuit、infrared receiver and acousto-optic alarm system etc.The system can control the time of power on or power off the LED Road Lamp.The Road Lamp is working on through constantcurrent source when the circuit short out or voltage is unsteady.The system not only can switch the LED Road Lamp automatically in vary light,but also can control the brightness of lamp automatically.In addition,the control system has the timing function.
出处
《电子测试》
2012年第2期60-63,共4页
Electronic Test
