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Method, system and device for sparse measurement of noise sound field

A measurement method and technology of measurement device, which are applied in measurement device, measurement of ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problem of low measurement accuracy of environmental noise, achieve accurate measurement of outdoor environmental noise, avoid the influence of background noise, improve The effect of retrieval speed

Inactive Publication Date: 2018-02-27
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Aiming at the deficiencies in the prior art and solving the problem of low measurement accuracy of environmental noise based on the sound pressure measurement method in the prior art, the present invention provides a noise sound field sparse measurement method, system and device, specifically a Based on the sound pressure measurement method, the noise sound field sparse measurement method is used to measure the environmental noise by sparsely measuring points in different areas, effectively avoiding the influence of background noise, and accurately measuring outdoor environmental noise; and it can accurately measure noise for different areas Sound field and effective acquisition of noise information

Method used

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  • Method, system and device for sparse measurement of noise sound field
  • Method, system and device for sparse measurement of noise sound field
  • Method, system and device for sparse measurement of noise sound field

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Embodiment 1

[0060] The purpose of Embodiment 1 is to provide a real-time video distribution system based on mobile users.

[0061] In this embodiment, the prior condition of the noise source: the sound source is located indoors, 2 meters away from the ground, and 1.5 meters away from the room door.

[0062] In order to achieve the above object, the present invention adopts the following technical scheme:

[0063] Such as figure 1 as shown,

[0064] A method for measuring noise sound field sparsification, the method comprising:

[0065] Step (1): Obtain environmental noise information, determine the area to be measured, grid it and evenly partition the grid, and establish a basic measurement point matrix;

[0066] In step (1) China, the environmental noise information includes noise sound pressure level, noise sound field frequency distribution range, noise sound source radiation range and propagation characteristics.

[0067] The concrete steps of step (1) include:

[0068] Step (1-1...

Embodiment 2

[0106] The purpose of Embodiment 2 is to provide a real-time video distribution method based on mobile users.

[0107] In order to achieve the above object, the present invention adopts the following technical scheme:

[0108] A noise sound field sparse measurement system, the system includes:

[0109] The noise data acquisition device is used to initially collect environmental noise information and transmit it to the sound field sparse measurement device;

[0110] The sound field sparse measurement device is used to obtain the environmental noise information collected by the noise data acquisition device, determine the area to be measured, grid it and evenly partition the grid, and establish a basic measurement point matrix; set the structure and performance according to the type of sound source Constraint conditions, perform sparse processing on the basic measurement point matrix, obtain a sparse measurement matrix, determine the position of the measurement point, and gener...

Embodiment 3

[0119] The purpose of Embodiment 3 is to provide a computer-readable storage medium.

[0120] In order to achieve the above object, the present invention adopts the following technical scheme:

[0121] A computer-readable storage medium, wherein a plurality of instructions are stored, and the instructions are adapted to be loaded by a processor of a terminal device and perform the following processing:

[0122] Obtain environmental noise information, determine the area to be measured, grid it and evenly partition the grid, and establish a basic matrix model;

[0123] According to the type of sound source, the structural and performance constraints are set, the basic matrix model is sparsely processed, the sparse measurement matrix is ​​obtained, the position of the measurement point is determined, and the layout of the sparse measurement point is generated.

[0124] In this embodiment, examples of the computer-readable recording medium include magnetic storage media (for exam...

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Abstract

The invention relates to a method, system and device for sparse measurement of a noise sound field. The method comprises the steps of obtaining ambient noise information, determining and gridding an area to be measured, evenly partitioning a grid, and establishing a basic measurement point matrix; setting structure and performance constraint conditions according to the type of a sound source, conducting sparse processing on the basic measurement point matrix, obtaining a sparse measurement matrix, determining the location of a measurement point, and generating a sparse measurement point arrangement diagram; setting a sound measurement device on the location of the measurement point according to the sparse measurement point arrangement diagram, and measuring the noise sound field. By meansof the method, system and device for the sparse measurement of the noise sound field, the influence of background noise can be effectively avoided, and the outdoor ambient noise is accurately measured; for different regions, the noise sound field can be accurately measured, and the noise information can be effectively obtained.

Description

technical field [0001] The invention belongs to the technical field of sound field measurement, and in particular relates to a noise sound field sparse measurement method, system and device. Background technique [0002] Noise seriously pollutes the surrounding environment and has a very bad impact on people's daily life and physical and mental health. Quantitative measurement of ambient noise around noise sources is the prerequisite for noise governance and control. [0003] In recent years, scholars at home and abroad have carried out in-depth research on noise measurement, and most scholars have used sound pressure measurement as the basis for noise measurement and data analysis. The sound pressure measurement method is widely used in equipment noise measurement because of its clear principle and simple operation. However, because the measurement accuracy strongly depends on the characteristics of the sound source, the location of the measurement point and the ambient ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 刘志红刘碧龙仪垂杰王万凯赵玉贵
Owner QINGDAO TECHNOLOGICAL UNIVERSITY