Title
An acoustical model based monitoring network
Author
Wessels, P.W.
Basten, T.G.H.
van der Eerden, F.J.M.
Publication year
2010
Abstract
In this paper the approach for an acoustical model based monitoring network is demonstrated. This network is capable of reconstructing a noise map, based on the combination of measured sound levels and an acoustic model of the area. By pre-calculating the sound attenuation within the network the noise map can be shown in real-time. The monitoring network offers an analysis tool for instance for industry or legal authorities. Alternatively, it can be an extension to the EU legislated noise maps. In principle the monitoring network works as follows. Battery powered microphones are deployed in an outdoor area. SPL's are measured in octave bands. Wireless communication and multi-hopping is used to collect the data at a central station. The SPL values are used to localize non-directional point sources, while accounting for obstacles and meteorological effects in the sound attenuation. The final result is a list of reconstructed sources with their locations and strengths and a noise contour map. The monitoring network is scalable and seems feasible and useful for large areas.
Subject
Physics & Electronics
AS - Acoustics & Sonar
TS - Technical Sciences
Acoustics and Audiology
Industrial Innovation
Acoustics
Monitoring
Network
Outdoor
Real-time
Acoustic model
Acoustical model
Analysis tools
Battery powered
Central stations
Meteorological effects
Monitoring network
Multi-hopping
Noise contours
Noise map
Octave bands
Outdoor
Point sources
Real-time
Sound attenuation
Sound level
Wireless communications
Acoustics
Monitoring
Networks (circuits)
Noise pollution
Wireless telecommunication systems
Acoustic noise
To reference this document use:
http://resolver.tudelft.nl/uuid:7b54ee9b-a31b-4c52-a7a4-133c6f90ba07
TNO identifier
466469
Publisher
The Institute of Noise Control Engineering of the USA, Washington, D.C.
ISBN
9781617823961
Source
39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010, 13 June 2010 through 16 June 2010, Lisbon, Portugal, 3, 1782-1789
Document type
conference paper