Abstract
Some common streets which are in public places，such as:the aisle way light，the lawn lamp，the advertisement box lamp，the neon light and the restroom and so on the public place uses some flares often all night are brightly lit，this is not only wasting of energy，but also make the ray pollution in some kind of procedure.Nowadays，the electric power energy is in short supply，so if we turn off some when there is no people，it is not expenses.
In this article，it introduces the systematic development background，the significance and especially the process of the hardware design and the software design.In the hardware aspect，this article elaborates the part，the module，the system one by one，especially the core of the system STC89C52，it makes use of the port of monolithic integrated to control the LCD1602 standard clock system，buzzer and the LED light and then the lighting system was controlled by intelligence，and uses the PROTEL 99SE.In the software aspect with the present stage quite popular monolithic integrated circuit C language programming，Simulation with Proteus，and involves the use of single-chip simulation software KEIL C51.
