Title: Acoustic localization of unknown sources with wireless sensor nodes
Authors: Chakraborty, Joyraj
Ottoy, Geoffrey
Gelaude, Maxim
Goemaere, Jean Pierre
De Strycker, Lieven
Issue Date: Mar-2015
Publisher: IEEE
Host Document: Proceedings of the 17th International Conference on Computer and Information Technology (ICCIT) pages:488-493
Conference: International Conference on Computer and Information Technology (ICCIT) edition:17 location:Bangladesh date:22-23 December 2014
Abstract: Accuracy of unknown sound source localization and lifetime of sensor nodes is one of the important and critical issue and challenge in wireless sensor network. Localization plays major role when there is an uncertainty of the exact source location of some fixed or mobile devices. The main problem is source localization in an environment where they try to localize and focus on a source of unknown sound and noisy distance. This paper presents a new approach on the indoor localization of an acoustic sensor source. In this localization system, the environment will be scattered with a swarm of acoustic motes. The motes used in this localization system are the LOTUS motes from MEMSIC. In order to get the system working, We utilize a modular sensor board to plug on the mote. This sensor board captures acoustic signals and then digitalizes them. This localization algorithm uses the incoming Time Difference of Arrival (TDOA) values of a swarm ZigBee modules. The location of the source of the acoustic signal is determined by the multilateration technique. A sensor network is used in order to collect the signals. The evident advantage of the algorithm is that it requires synchronization between the motes mutually and not between the motes and acoustic source. The algorithm for these methods is written in MATLAB. The motes communicate in a ZigBee mesh network.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Electrical Engineering (ESAT) TC, Technology Campuses Ghent and Aalst
Technologiecluster ESAT Elektrotechnische Engineering

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