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Implementing a Distance Estimator for a Wildlife Tracking System Based on 802.15.4

Robotics and Technology of Computers Lab., University of Seville, 41012 Sevilla, Spain
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Electronics 2019, 8(12), 1438; https://doi.org/10.3390/electronics8121438
Received: 31 October 2019 / Revised: 21 November 2019 / Accepted: 23 November 2019 / Published: 1 December 2019
(This article belongs to the Section Circuit and Signal Processing)
In this work, a novel distance estimation mechanism using received signal strength indication (RSSI) signals with ZigBee modules is designed, implemented and tested in several scenarios. This estimator was used for a research project focused on a wildlife behavioral classification system deployed in Doñana’s National Park. As a supporting feature for that project, this work was implemented for locating animal’s collars acting as wireless nodes in order to find those who went outside of the coverage area of the network or that were accidentally detached from animals. This work describes the system architecture and the implementation of a mobile assistant capable of recovering devices located beyond the coverage of the network. The analytical model needed for distance estimation and the signal filtering are described, as well as the difficulties that the researchers must deal when building robust location estimators. This theoretical model was applied to three different scenarios and tested with two validation experiments. View Full-Text
Keywords: distance estimation; 802.15.4; ZigBee; wildlife; animal tracking; RSSI; signal filtering distance estimation; 802.15.4; ZigBee; wildlife; animal tracking; RSSI; signal filtering
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Cascado-Caballero, D.; Duran-Lopez, L.; Dominguez-Morales, J.P.; Gutierrez-Galan, D.; Amaya-Rodriguez, C.; Dominguez-Morales, M. Implementing a Distance Estimator for a Wildlife Tracking System Based on 802.15.4. Electronics 2019, 8, 1438.

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