Traffic signal control based on single-chip circuit design
Abstract: Traffic lights in urban traffic in an orderly, safe and an important guarantee for fast running, and the protection of traffic lights to protect the normal work of the traffic has become orderly, safe, fast running key. To this end, the use of MCS-51 series AT89C51 single-chip device designed as the central traffic light control circuit, with a total of cathode seventh time the digital display module, the traffic light display module, transfer module, crystal oscillator circuit, reset circuit and control circuit 8051 in accordance with the actual traffic flow through the port P3 chip set red, green and double-time to kindle a digital countdown display,The turn of the three colors of lights and emergency lighting in case of interruption of processing. The system cost-effective, practical, simple, full-featured.
Key words: Single-chip；traffic light；control circuit
