Design and Implementation of Acoustic Source Localization on a Low-Cost IoT Edge Platform
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Altres documents de l'autoria: Fabregat Llueca, German; BELLOCH, JOSE A.; Badía, José; Cobos, Maximo
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Design and Implementation of Acoustic Source Localization on a Low-Cost IoT Edge PlatformData de publicació
2020-04-08Editor
Institute of Electrical and Electronics EngineersISSN
1549-7747Cita bibliogràfica
FABREGAT, Germán, et al. Design and implementation of acoustic source localization on a low-cost iot edge platform. IEEE Transactions on Circuits and Systems II: Express Briefs, 2020.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://ieeexplore.ieee.org/document/9060930Versió
info:eu-repo/semantics/acceptedVersionParaules clau / Matèries
Resum
The implementation of algorithms for acoustic
source localization on edge platforms for the Internet of Things
(IoT) is gaining momentum. Applications based on acoustic monitoring can greatly benefit from efficient ... [+]
The implementation of algorithms for acoustic
source localization on edge platforms for the Internet of Things
(IoT) is gaining momentum. Applications based on acoustic monitoring can greatly benefit from efficient implementations of such
algorithms, enabling novel services for smart homes and buildings or ambient-assisted living. In this context, this brief proposes
extreme low-cost sound source localization system composed of
two microphones and the low power microcontroller module
ESP32. A Direction-Of-Arrival (DOA) algorithm has been implemented taking into account the specific features of this board,
showing excellent performance despite the memory constraints
imposed by the platform. We have also adapted off-the-shelf lowcost microphone boards to the input requirements of the ESP32
Analog-to-Digital Converter. The processing has been optimized
by leveraging in parallel both cores of the microcontroller to capture and process the audio in real time. Our experiments expose
that we can perform real-time localization, with a processing time
below 3.3 ms. [-]
Publicat a
IEEE Transactions on Circuits and Systems II: Express Briefs ( Volume: 67, Issue: 12, Dec. 2020)Drets d'accés
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