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Journal Articles Sensors Year : 2020

Low-Cost Sensors for Urban Noise Monitoring Networks-A Literature Review


Noise pollution reduction in the environment is a major challenge from a societal and health point of view. To implement strategies to improve sound environments, experts need information on existing noise. The first source of information is based on the elaboration of noise maps using software, but with limitations on the realism of the maps obtained, due to numerous calculation assumptions. The second is based on the use of measured data, in particular through professional measurement observatories, but in limited numbers for practical and financial reasons. More recently, numerous technical developments, such as the miniaturization of electronic components, the accessibility of low-cost computing processors and the improved performance of electric batteries, have opened up new prospects for the deployment of low-cost sensor networks for the assessment of sound environments. Over the past fifteen years, the literature has presented numerous experiments in this field, ranging from proof of concept to operational implementation. The purpose of this article is firstly to review the literature, and secondly, to identify the expected technical characteristics of the sensors to address the problem of noise pollution assessment. Lastly, the article will also put forward the challenges that are needed to respond to a massive deployment of low-cost noise sensors.
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Dates and versions

hal-02930109 , version 1 (04-09-2020)
hal-02930109 , version 2 (26-01-2021)



Judicaël Picaut, Arnaud Can, Nicolas Fortin, Jeremy Ardouin, Mathieu Lagrange. Low-Cost Sensors for Urban Noise Monitoring Networks-A Literature Review. Sensors, 2020, 20 (8), ⟨10.3390/s20082256⟩. ⟨hal-02930109v2⟩
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