DEVICE FOR CONTROLLING BRIGHTNESS OF LIGHTING DEVICE
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United States of America Patent
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app pub date -
Nov 30, 2015
filing date -
May 30, 2013
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Abandoned
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Abstract
The present invention relates to a device for controlling the brightness of a lighting device, comprising: a camera module for photographing a lighting area of the lighting device comprising a plurality of streetlights; a brightness controller for calculating an average brightness of the lighting area by receiving a photographed image of the camera module, and for comparing the average brightness with a reference brightness and transmitting a brightness control signal according to the comparison result; and a streetlight device unit provided in each of the streetlights of the lighting device so as to adjust the brightness of an LED light source unit according to the brightness control signal of the brightness controller. According to the present invention, an average brightness of an area illuminated by a lighting device which is a set of a plurality of streetlights can be calculated by processing an image from a camera obtained by photographing the area, and the brightness of the lighting device can be controlled according to the average brightness, thereby solving existing problems of brightness control according to a difference between the brightness at a sensor location and the average brightness of the lighting device.
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