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Accurate indoor sound level measurement on a low-power and low-cost wireless sensor node
ID Risojević, Vladimir (Avtor), ID Rozman, Robert (Avtor), ID Pilipović, Ratko (Avtor), ID Češnovar, Rok (Avtor), ID Bulić, Patricio (Avtor)

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Izvleček
Wireless sensor networks can provide a cheap and flexible infrastructure to support the measurement of noise pollution. However, the processing of the gathered data is challenging to implement on resource-constrained nodes, because each node has its own limited power supply, low-performance and low-power micro-controller unit and other limited processing resources, as well as limited amount of memory. We propose a sensor node for monitoring of indoor ambient noise. The sensor node is based on a hardware platform with limited computational resources and utilizes several simplifications to approximate more complex and costly signal processing stage. Furthermore, to reduce the communication between the sensor node and a sink node, as well as the power consumed by the IEEE 802.15.4 (ZigBee) transceiver, we perform digital A-weighting filtering and non-calibrated calculation of the sound pressure level on the node. According to experimental results, the proposed sound level meter can accurately measure the noise levels of up to 100 dB, with the mean difference of less than 2 dB compared to Class 1 sound level meter. The proposed device can continuously monitor indoor noise for several days. Despite the limitations of the used hardware platform, the presented node is a promising low-cost and low-power solution for indoor ambient noise monitoring.

Jezik:Angleški jezik
Ključne besede:environmental noise monitoring, noise sensing, A-weighting, hardware platform, wireless sensor network
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FRI - Fakulteta za računalništvo in informatiko
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2018
Št. strani:22 str.
Številčenje:Vol. 18, iss. 7, art. 2351
PID:20.500.12556/RUL-125565 Povezava se odpre v novem oknu
UDK:004
ISSN pri članku:1424-8220
DOI:10.3390/s18072351 Povezava se odpre v novem oknu
COBISS.SI-ID:1537843395 Povezava se odpre v novem oknu
Datum objave v RUL:25.03.2021
Število ogledov:896
Število prenosov:258
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Sensors
Skrajšan naslov:Sensors
Založnik:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:19.07.2018

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:monitoring okoljskega hrupa, zaznavanje hrupa, A-uteženje, hardwerska platforma

Projekti

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Ministry of Science and Technology of the Republic of Srpska
Številka projekta:19/6-020/961-37/15

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0359
Naslov:Vseprisotno računalništvo

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:BI-BA/16-17-029

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