Wireless Sensor Networks for Long-Term Monitoring of Urban Noise

Sensors
Courtney PeckensTaylor Rink

Abstract

Noise pollution in urban environments is becoming increasingly common and it has potential to negatively impact people's health and decrease overall productivity. In order to alleviate these effects, it is important to better quantify noise patterns and levels through data collection and analysis. Wireless sensor networks offer a method for achieving this with a higher level of granularity than traditional handheld devices. In this study, a wireless sensing unit (WSU) was developed that possesses the same functionality as a handheld sound level meter. The WSU is comprised of a microcontroller unit that enables on-board computations, a wireless transceiver that uses Zigbee protocol for data transmission, and an external peripheral board that houses the microphone transducer. The WSU utilizes on-board data processing techniques to monitor noise by computing equivalent continuous sound levels, LeqT, which effectively minimizes data transmission and increases the overall longevity of the node. Strategies are also employed to ensure real-time functionality is maintained on the sensing unit, with a focus on preventing bottlenecks between data acquisition, data processing, and wireless transmission. Four units were deployed in two wee...Continue Reading

References

Feb 6, 2004·British Medical Bulletin·Stephen A Stansfeld, Mark P Matheson
Apr 3, 2007·Southern Medical Journal·Lisa Goines, Louis Hagler
Dec 7, 2013·Environmental Health Perspectives·Monica S HammerRichard L Neitzel
Sep 12, 2014·Noise & Health·Daniel R NastColleen G Le Prell
Sep 23, 2014·The Journal of the Acoustical Society of America·Chucri A Kardous, Peter B Shaw
Oct 10, 2014·The Science of the Total Environment·Sharon MoltchanovBarak Fishbain
Apr 22, 2017·Sensors·Willian ZamoraPietro Manzoni

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Methods Mentioned

BETA
IEC
chip

Software Mentioned

- SENSE
City Soundscape
AoT
Raspberry PI
XBee
XBee API
Arduino IDE
MATLAB
Teensy XBee
FONOMOC

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