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Handling method, device and system of automobile noise

A technology of a processing device and a processing method, which is applied in the directions of active noise control, sounding equipment, instruments, etc., can solve the problems of poor noise canceling effect and lag in the way of collecting noise by a microphone, and achieve the effect of improving the noise canceling effect.

Inactive Publication Date: 2019-09-10
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scheme has the following defects: due to the serious lag of the way the scheme relies on the microphone to collect noise, the noise cancellation effect is poor

Method used

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  • Handling method, device and system of automobile noise
  • Handling method, device and system of automobile noise
  • Handling method, device and system of automobile noise

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Embodiment 1

[0055] Such as figure 1 As shown, the embodiment of the present invention provides a kind of processing method of automobile noise, comprising:

[0056] Step S102, obtaining road surface state information and vehicle speed information of the vehicle at the current moment;

[0057] The pavement state information here mainly includes pavement material and pavement environmental conditions, wherein the pavement material mainly includes initial pavement materials and pavement repair materials, and the pavement environmental conditions include dryness, water accumulation, snow accumulation, subsidence, pavement repair or not, municipal equipment (such as The distribution of various manhole covers, etc.; the above-mentioned vehicle speed information includes the vehicle speed value.

[0058] It should be noted that, considering the impact of road surface parameters on tire noise, in order to further improve the noise cancellation effect, the road surface state information may further...

Embodiment 2

[0136] Such as Figure 4 As shown, the embodiment of the present invention provides a vehicle noise processing device, including an acquisition module 100 and a control module 500;

[0137] Wherein, the obtaining module 100 is used to obtain road surface state information and vehicle speed information of the vehicle at the current moment;

[0138] A control module 200, configured to determine a feature value of a first noise based on the road surface state information and the vehicle speed information; generate a first noise cancellation signal based on the feature value of the first noise, and the first noise cancellation signal is used for The first noise is eliminated.

[0139] Further, the acquiring module 100 is used to acquire the current position information of the vehicle; acquire the picture information of the vehicle at the current time; and obtain the road surface state information based on the position information and the picture information.

[0140] Further, th...

Embodiment 3

[0167] see Figure 6 , the embodiment of the present invention also provides an electronic device 1, including: a processor 40, a memory 41, a bus 42 and a communication interface 43, the processor 40, the communication interface 43 and the memory 41 are connected through the bus 42; the processor 40 uses Executable modules, such as computer programs, stored in the execution memory 41 .

[0168] Wherein, the memory 41 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 43 (which may be wired or wireless), and the Internet, wide area network, local network, metropolitan area network, etc. can be used.

[0169] The bus 42 can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into ...

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PUM

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Abstract

The invention provides a handling method, device and system of an automobile noise, and relates to the field of automobile noises. The handling method of the automobile noise comprises the adopted steps that firstly, pavement state information and speed information of a vehicle at the current moment are obtained; then a characteristic value of a first noise is determined based on the pavement state information and the speed information; and finally a first noise elimination signal for eliminating the first noise is generated based on the characteristic value of the first noise. Compared with an ANC system in the prior art, which collects the generated noise through a microphone with a severe lag, the noise and the noise elimination signal of the handling method are synchronized, the noiseelimination effect is improved, and the problem of poor noise elimination effect in the prior art is alleviated.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a processing method, device and system for automobile noise. Background technique [0002] When the car is running, it will produce noise, and the intensity of the noise has a great impact on the comfort of the driver and passengers. [0003] At present, the main noise reduction method in the prior art is to use an ANC (Active Noise Control) system for active noise reduction. The noise reduction principle of ANC is to collect the noise in the car through the microphone to generate an active noise, and the two noises cancel each other out. For example, a car noise processing system is mentioned in "CN108597490A-A Car Audio Noise Management System". The speaker plays, canceling out the original noise. This scheme has the following defects: due to the serious hysteresis of the way the scheme relies on the microphone to collect noise, the noise cancellation effect is poor. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/178
CPCG10K2210/1282G10K2210/12821G10K11/17823G10K11/17873
Inventor 严英甘海云
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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