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In-vehicle noise reduction method and device based on pedestrian warning tone and vehicle

A technology of prompting sound and pedestrians, which is applied in the information field, can solve problems such as poor noise reduction effect, and achieve the effect of improving the sound quality and effect in the car

Pending Publication Date: 2022-07-12
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method, device, and vehicle for noise reduction in a vehicle based on pedestrian notification sounds, so as to solve the problem that the noise reduction effect of existing notification sound noise reduction methods is not good

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  • In-vehicle noise reduction method and device based on pedestrian warning tone and vehicle
  • In-vehicle noise reduction method and device based on pedestrian warning tone and vehicle
  • In-vehicle noise reduction method and device based on pedestrian warning tone and vehicle

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Embodiment Construction

[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] The method for noise reduction in a vehicle based on pedestrian prompt sounds provided in this embodiment will be described in detail below. like figure 1 As shown, it is a schematic diagram of the actual vehicle layout of the pedestrian alert sound active noise reduction system. The pedestrian alert sound active noise reduction system is a multi-channel active noise reduction control system, including multiple speakers and multiple ...

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Abstract

The invention discloses an in-vehicle noise reduction method based on pedestrian warning tones, and the method comprises the steps: obtaining an out-of-vehicle warning tone signal and a corresponding original warning tone signal, the out-of-vehicle warning tone signal being a signal collected by an out-of-vehicle microphone after the original warning tone signal is emitted by a warning tone loudspeaker; according to the original prompt tone signal, extracting a target noise signal from the prompt tone signal outside the vehicle; according to the target noise signal, a control signal of a loudspeaker in the vehicle is obtained through a self-adaptive control algorithm; and the control signal is sent to the in-vehicle loudspeaker, so that the in-vehicle loudspeaker makes a sound to offset the target noise signal. According to the invention, the noise component in the out-of-vehicle prompt tone signal transmitted to the interior of the vehicle is effectively filtered out, the effect of noise reduction in the vehicle is improved, and the quality of sound in the vehicle is improved.

Description

technical field [0001] The present invention relates to the field of information technology, and in particular, to an in-vehicle noise reduction method, device and vehicle based on pedestrian prompt sounds. Background technique [0002] According to the regulations related to pedestrian alert sound, existing electric vehicles or vehicles equipped with an external alert sound system must provide pedestrian alert sounds that meet the minimum sound level requirements. However, the low-frequency part of the pedestrian warning sound is easily transmitted to the interior of the vehicle, thereby affecting the interior sound quality. [0003] In order to reduce the noise inside the vehicle, the fuel vehicle usually uses the CAN signal as the reference signal for noise reduction in the vehicle. The frequency components related to the vehicle speed in the prompt sound are reduced, but the frequency components not related to the vehicle speed cannot be reduced, and the prompt sound ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/178
CPCG10K11/17854G10K11/178
Inventor 胥国文田畑俊幸王理周陈祥君彭程
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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