ABSTRACT
In recent years along with science and technology develop fast, the application of single flat machine is moving towards thorough continuously, at the same time drive traditional control detection day the benefit of new moon update.
Crossroads of the shuttle vehicles, pedestrian Xi Rang, turn to be all right lane, person pedestrian says , methodically. Do you lean what to realize this orderly order? What lean is that the automatic command system of traffic signal lamp. Traffic signal lamp control way is many . This system adopts MSC-51 series only flat machine Intel8051 with but programming parallel interface chip 8255 A of I/O is central device the design controler of traffic lights, haverealized can measure according to actual wagon flow the P1 installation bonus and green light that passes through 8051 chips burn to light the function of time; For system stabilize reliable have adopted MAX692 the chip " dog looks after the house ", have avoided that system stops working condition because of halting to occur; Show that time is directly exported through PB and PA of 8255; The signal of traffic lights is exported through usually PC mouth; The point of traffic lights light to adopt VT two-way Jing floodgate pipe come to control, directly drive with the alternating current source of 220 V, practicality is strong, operating is simple.
Keywords: Only flat machine Traffic lights Controler Design Realize
