Development of Portable Traffic Lights System Using Radio Frequency, Infra-Red Sensor and Controller PIC 16F877A

Abstract

Controlling the traffic during road construction, maintenance and blockage can be a hassle to manage. Thanks to the idea of portable traffic lights system (PTLS), road workers can fully focusing on fixing the road without have to worry about the traffic situation. By taking advantage of radio frequency (RF) and infra-red (IR) sensor technology, two set of portable traffic lights has been developed. It can automatically sense an approaching object and send a wireless signal to communicate with the other traffic lights. The command setting is set to keep both traffic lights to show a different set of lights of green and red at all time. The paper discusses the process of combining wireless, sensor and controller technology by specifically choosing RF module set, 315MHz, Sharp GP2Y0A21YK IR sensor and PIC16F877A as a main components to develop a wireless control system device. A much more advance wireless system can be produced using the same process but different main components.