Intelligent traffic signal lamp structure and function

Kilter traffic lights use light-emitting diodes (leds), that is, skills, LED luminous power, aseismatic ability strong, energy saving and safe. Components within the system, including signal by an external power supply, and is equipped with a UPS. Traffic signal control device for a variety of light does not provide working voltage, signal transmission, only complete low voltage control. Light brightness control to choose the principle of pulse width modulation, the full-wave rectifier voltage, the resistance partial pressure, by the light coupling into bound duty cycle of square wave, when the power supply voltage increases, the duty ratio decreased, restrain the progress of the LED brightness, when the power supply voltage drops, duty ratio increases, the constraint of LED brightness down, and then completed the automatic control of the LED brightness.

Traffic signal lamp remote communication control can choose current loop signal transmission method to complete. This kind of long-distance communication control circuit short, low cost, strong anti-interference ability. It is by the current loop transfer the three kinds of signal, the data of serial shift D, clock CLK, latch STR, the lights will control device from the serial information is converted to a parallel output, precise complete control, different light can adopt parallel method on attachment, so that the load of a circuit output can be enough to handle a dozen lights, requirements can be satisfied with all kinds of traffic intersection.

Intelligent traffic signal lamp system is an independent system, but also a part of the whole area intelligent light system. Through information sharing, can complete transport control of traffic signals, useful traffic speculation and guidance. When intersection traffic is relatively uniform in secure area lights and harmonious operation, able to complete the green wave band.

Zibo peng hui electronic technology co., LTD. The main production traffic lights, traffic lights, traffic signal controller, solar traffic lights, and other products, and for the user need to design special production. Please click http://www.xinhaodeng.com.cn for more information.