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Noise map updating method combining speed and noise monitoring data

A noise map, noise monitoring technology, applied in structured data retrieval, geographic information database, special data processing applications, etc., can solve problems such as the inability to combine monitoring values ​​and speed data

Active Publication Date: 2021-03-09
SUN YAT SEN UNIV +1
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  • Description
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Problems solved by technology

However, this patent cannot realize the combination of monitoring value and speed data, which effectively reduces the cost and difficulty of data collection, and can be used for map update. At the same time, it fully considers the impact of single data on the results, and uses multivariate data to improve the accuracy of noise results.

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  • Noise map updating method combining speed and noise monitoring data
  • Noise map updating method combining speed and noise monitoring data

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Embodiment Construction

[0031] The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

[0032] In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0033] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 As shown, a noise map updating method combining speed and noise monitoring data includes the following steps:

[0036] S1: According to the speed data of the road, all the roads in the static noise map are clustered under the premise of classification;

[0037] S2: Monitor the noise value of the road noise source in each cluster center according to the clustering resu...

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Abstract

The invention provides a noise map updating method combining speed and noise monitoring data, which comprises the following steps of: classifying roads in a static noise map according to road grades,and clustering each class according to road speed; calculating the variation of a noise value of each road caused by speed change by acquiring speed data of the road at an updating moment, and calculating the variation of the noise value of the monitored road caused by density change by combining noise monitoring data of each road; finally, calculating the variation of the noise value of each roadcaused by the density change according to the calculated variation of the noise value of the monitored road caused by the density change, calculating the variation of the noise value of each road relative to the static noise map moment under the current traffic condition according to the results of the two parts, and calculating the noise value of each road relative to the static noise map momentunder the current traffic condition; and finally, updating the whole noise map according to the updating result of the noise source and the noise propagation model.

Description

technical field [0001] The invention relates to the field of traffic noise and traffic noise map update algorithm, and more specifically, relates to a noise map update method combining speed and noise monitoring data. Background technique [0002] In the field of traffic noise, noise maps are currently one of the most practical tools for assessing the distribution of traffic noise. Combining with GIS geographic information system, researchers can intuitively understand the current noise distribution and the influence range of traffic noise sources, and can also evaluate the effects of related measures to block sound transmission and reduce noise hazards through related interfaces. However, most of the current noise maps are static, and the noise maps drawn according to the traffic flow conditions during the survey period can only represent the noise distribution under the traffic conditions at that moment. When traffic conditions and traffic conditions change, there is a ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/29G01H17/00
CPCG06F16/29G01H17/00
Inventor 蔡铭薛旺星何灿明何锦英欧敏萍
Owner SUN YAT SEN UNIV
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