The Intelligent Light System Of The LED

As a kind of green energy, the electric energy takes a large ratio of the energy application in different countries all over the world. Low power consumption is also becoming an important problem nowadays. The light adjusting technology is able to save the power consumption, which also can improve the working environment of the LED light and lengthen its service life. The key element to influence the reliability of the LED light is the temperature. The life of LED chip will be short if the temperature is too high. Using the light adjusting technology, the power consumption will reduce with the reduction of power output, thus the temperature of the light will also be low.

The traditional incandescent lamp or HID were unable to adjust the brightness. The lamp was lighted on in the intervening time when the energy crisis happened in Japan in the seventieth of last century. This method have caused so many accidents on the road, therefore, it was stopped. Nowadays, development of the light adjusting technology will bring the LED light system to a new field, popularizing the LED application in a large area. The perfect intelligent control should have several functions, such as manual control, intelligent control, photo-control, lithologic control and malfunction alarm. The lamp will light on automatically when the sun is setting, and it will turn down automatically after daybreak.

The intelligent light system is consisted of the server, central controller, unit controller and the signal detect circuit. The server is in the control center, which contact with the central controller by the network, power line and the wireless methods; the central controller receives the signal sent by the server, sending it to the unit controller; the signal detect circuit is used to detect the brightness, voltage and current of the driving supply and send the result to the unit controller; the unit controller is used to adjust the brightness of the light.

Currently, the application of the LED light is popularizing quickly in the illumination field. The service life and reliability are two important elements which should consider firstly. With the development of technology, these two problems must be solved. The application of LED illumination must develop towards the intelligent light system. The related integrated circuit is VID12512P1.