Environmental-protecting type horn of vehicle for self-regulating sound volume based on entironment noise

An environmental noise, automatic adjustment technology, applied in the direction of amplification control, sound-producing equipment, instruments, etc., can solve problems such as unfavorable driving safety, sound, and inability to effectively reduce noise pollution, and achieve the effect of reducing noise pollution.

Inactive Publication Date: 2009-06-10
卢能晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing car horn is a single sound, and the sound is louder
In order to reduce noise pollution, honking is prohibited in most cities, but it is often necessary to honk to remind pedestrians or other vehicles during driving. Absolutely not honking is not conducive to driving safety, so it cannot effectively reduce noise pollution

Method used

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  • Environmental-protecting type horn of vehicle for self-regulating sound volume based on entironment noise

Examples

Experimental program
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Effect test

Embodiment Construction

[0009] In the embodiment, IC1 and its peripheral R1-R7 and C1 form an amplifier circuit; IC2 and its surrounding R8-R11 and C2 form a voltage comparator; IC3 and C3 and C4 form a regulated power supply circuit.

[0010] The microphone MIC is installed on the outer surface of the car to avoid interference caused by the engine and its own horn.

[0011] The microphone MIC is coupled to the input terminal of the amplifier through C1, and the output terminal of the amplifier is connected to the voltage comparison input terminal of the voltage comparator, where C2 is a filter capacitor to improve stability.

[0012] The output terminal of the voltage comparator is connected with the relay J, and in the contact switch JK of the relay, the normally open and normally closed contacts are respectively connected with the high-power and low-power horns LB1 and LB2.

[0013] When working, the signal collected by the MIC is amplified by IC1, processed by IC2, and compared with the preset vo...

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PUM

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Abstract

The invention discloses an environment-friendly automobile horn capable of automatically adjusting the volume according to the environmental noise. The horn comprises two horns with different power and a control device, wherein the control device consists of a microphone, an amplifier, a voltage comparator, and an output stage, the microphone is arranged on the surface of a carriage of an automobile, is used for acquiring the environmental noise, and is connected with the input end of the amplifier, the output end of the amplifier is connected the comparison input end of the voltage comparator, a relay used as the output stage is connected with the output end of the voltage comparator, and a normally open contact and a normally closed contact of the relay which are used as the normally open output end and the normally closed output end are connected with the two horns respectively. When the environment is noisy, the control device selects the high power horn to work to be favorable to the safety of the driving; when the environment is quiet, the low power horn is selected to work, which reduces noise pollution to a great extent on the premise of assuring the safety of the driving, and is favorable for environmental protection.

Description

technical field [0001] The invention relates to automobiles, in particular to the improvement of automobile horns. Background technique [0002] Existing car horn is single sound, and sound is louder. In order to reduce noise pollution, honking is mostly prohibited in cities, but it is often necessary to honk to remind pedestrians or other vehicles during driving. Absolutely not honking is not conducive to driving safety, so noise pollution cannot be effectively reduced. Contents of the invention [0003] The purpose of the present invention is to provide an environment-friendly car horn that can automatically adjust the volume according to the environmental noise, and automatically reduce the volume of the horn in a quiet environment to reduce the noise pollution caused by the car horn. [0004] The solution of the present invention is: an environment-friendly car horn that automatically adjusts volume according to ambient noise, including two horns with different power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K9/12H03G3/20
Inventor 卢能晓
Owner 卢能晓
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