Design And Development Of Detection Device For Traffic Signal Light

Traffic signal display system is an important branch of the construction. With the development of intelligent traffic, the system of real-time instructions state is particularly important. At present, the detection method of the system in the enterprise is a single, it is have not yet widely used. According to the Production situation and requirement of baoding victor traffic facilities engineering company.This paper designed and developed Two types of detection devices needed for the production of the required detection device:(1)the circuit board tester of LED light-emitting displayâ‘  A large LED digital tube strokes PCB detection deviceâ‘¡ Round LED traffic lights PCB detection device(2)Datum axis light intensity tester for traffic lightFirst according to the artificial low detection efficiency, and high error rate, design the circuit board tester,which can display the LED light signal.The instrument is mainly composed of a two-way display conversion part and a mechanical self-locking output switching part,so it can be convenient for different colors on the display unit to display conversion.As for different PCB circular LED traffic signal lamp the voltage specifications and to probe as a test contact connection of different power position, using a set of different DC / DC voltage conversion module circuit and a combination of the band switch choice,it can achieve the rapid testing for circuit board with LED light, and carry on the automatic identification of welding, welding leakage, short circuit, component failures.The axis luminous intensity tester evelopment for traffic signal lamp based on the luminous intensity of the requirements of the national standard of traffic signal lamp. It completed the design of the circuit and the structure, and a prototype was developed to test the luminous intensity in parallel axis,that can be the accurate measurement for all kinds of traffic signal lamp.It also designed fog environment simulation device, which can test the traffic signal lamp fog light hampered the influence degree.