Sound sensing type LED street lamp capable of automatically adjusting brightness

Abstract

The invention discloses a sound sensing type LED street lamp capable of automatically adjusting brightness. The LED street lamp comprises a lamp post provided with two cavities. The lamp post is inserted into the ground; the lamp post is fixedly connected with a fixed block in a penetrating mode. The fixed block is a hollow cylinder; a plurality of first springs are fixedly connected to the innerwall of the fixed block; the ends, away from the fixed block, of the first springs are jointly and fixedly connected with a mounting block. The mounting block is a hollow cylinder; sound receiving covers are glued at the two ends of the mounting block; two first sliding blocks and piezoelectric ceramics are slidably connected to the inner wall of the mounting block through first sliding grooves, avibrating diaphragm is glued between the two first sliding blocks, second springs are fixedly connected between the two piezoelectric ceramics and the mounting block, and a brightness adjusting device is arranged in one cavity of the lamp post. The LED street lamp has the advantages that the brightness of the LED street lamp can be adjusted according to whether a vehicle passes or not, the lowestbrightness is kept when no vehicle passes, and more energy is saved.

Description

technical field [0001] The invention relates to the technical field of LED street lamps, in particular to a sound-sensing LED street lamp with self-adjusting brightness. Background technique [0002] Street lamps are lamps for road lighting. The function of street lamps is to illuminate the road at night, ensure driving safety, and provide sufficient lighting conditions for cars driving on the road at night. With the continuous development of science and technology, the impact on energy consumption and light intensity LED street lights have gradually replaced the previously used halogen street lights. LED street lights have lower energy consumption, stronger light intensity and longer service life, and have been greatly promoted. [0003] In the prior art, the existing LED street lights are all turned on after night falls, and in the early morning, when there are fewer vehicles on the road, they still maintain the brightest brightness to provide illumination for the road, in...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the energy consumption of the brightest brightness is still too high when there are fewer vehicles, and a sound-sensing self-adjusting brightness LED street lamp is proposed.

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