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Noise map construction method based on building surface noise model (BSNM)

A map construction and noise technology, applied in teaching models, measuring devices, instruments, etc., can solve the problems of not being able to truly experience road noise pollution, not being able to specifically calculate the noise of building space points, poor practicality and experience, etc.

Inactive Publication Date: 2014-07-30
CAPITAL NORMAL UNIVERSITY +2
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Problems solved by technology

[0005] The above traffic noise map is based on the GIS system, and the traffic noise value is obtained through the traffic noise calculation model, and the urban per capita traffic noise pollution index is graded and divided to represent the noise pollution index; in the above technical scheme, only the noise value of the receiving point can be calculated, and no specific calculation is possible The noise of a certain building space point is displayed, and the user can only see the noise pollution indicator, but cannot truly experience the road noise pollution, and the practicability and experience are poor

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  • Noise map construction method based on building surface noise model (BSNM)
  • Noise map construction method based on building surface noise model (BSNM)

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[0022] Such as figure 1 , 2 As shown, the technical solution adopted by the present invention is a noise map construction method based on a building surface noise model, comprising the following steps:

[0023] 1) Road and street view data collection: synchronously collect street view pictures and GPS coordinates corresponding to the street view pictures, noise audio data, noise decibel value;

[0024] 2) Estimation of spatial point noise of buildings on both sides of the road: Centering on each spatial point of buildings on both sides of the road, calculate the superimposed influence of road noise on the spatial point within the effective radius, and estimate the noise of each spatial point Decibel value, building surface noise model;

[0025] 3) Road and street view data processing: including resolution processing and slicing processing of street view images, noise audio synthesis processing, and drawing noise decibel value multispectral maps of roads and buildings on both...

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Abstract

The invention relates to a noise map construction method based on a building surface noise model (BSNM). The noise map construction method comprises the steps of acquiring road streetscape data, evaluating noises of spatial points of buildings on two sides of a road, processing the road streetscape data, rendering a road streetscape data map and constructing a noise map. By means of the acquired road noise, noises of the buildings on two sides of the road are evaluated, the BSNM is constructed, a building noise multi-spectrum map is embedded into the surfaces of the corresponding buildings in the noise map, and a visual BSNM is presented. The noise map construction method has the advantages that by means of the noise map construction method, the map capable of representing urban street noises faithfully is constructed for users, and users can experience street noise pollution really.

Description

Technical field: [0001] The invention relates to the field of traffic noise monitoring, in particular to a noise map construction method based on a building surface noise model. Background technique: [0002] With the continuous increase of private vehicles, the urban traffic environment has been paid more and more attention, especially the road traffic noise pollution has seriously affected the environmental quality of urban human settlements. Therefore, the detection of noise is particularly important. [0003] At present, the existing implementation methods of traffic noise monitoring are generally to load the attribute information of roads and buildings from the geographic information system (GIS) or to extract the relevant information of vehicles in the road monitoring video as the input parameters of the traffic noise calculation model, and then The algorithm is optimized to obtain the noise situation of urban roads. [0004] In the Chinese patent literature, the inve...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/00G01H17/00
Inventor 关鸿亮陶永亮佘敏
Owner CAPITAL NORMAL UNIVERSITY
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