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Vol. 10, Special Issue, February 2011, pp.171-190



Design of Networked Low-Cost Wireless Noise Measurement Sensor



University of Jyväskylä, Kokkola University Consortium Chydenius

Talonpojankatu 2B, 67100, Finland

Tel.: +358 68294285, fax: +358 68294202

E-mail: ismo.hakala@chydenius.fi, ilkka.kivela@chydenius.fi, chao.gao@chydenius.fi, jukka.ihalainen@chydenius.fi, jari.luomala@chydenius.fi



Received: 2 November 2010   /Accepted: 11 January 2011   /Published: 8 February 2011


Abstract: Environmental noise is considered as one of the big issues in environmental pollutions. Typical noise sources like traffic can have great influence on wellbeing and healthy. In this paper, we report the sensor function design and implementation of a wireless sensor network application for measuring environmental acoustic noise. The sensing system is built on Atmega128 and CC2420 platform. The protocol stack is based on CiNet stack with a global synchronization scheme and supports multi-hop communications. Strict filtering function specified by ITU-R 468 (namely A-weighting) is followed. Both the indoor and outdoor test results were compared with a standard sound level meter and showed a less than ± 2.1 dB mean differences in both short-term and long-term measurement. Power consumption has been measured that a single AA-type battery can sustain the application. Comparing to the traditional noise measurement method, the designed wireless sensor network solution is much lower in cost.


Keywords: Sensor node design, Continuous noise measurement, Environmental monitoring


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