Abstract
A new visible light communication (VLC) system is proposed for localization in underground mining. Existent systems, such as global positioning system (GPS) and systems based on mobile communication, are generally not useful in underground mining. The proposed system is based on a three-dimensional trilateration VLC localization scheme. This articles offers an evaluation of the proposed system in different evaluation scenarios in terms of the average localization error. The proposed algorithm localizes the source with an average localization estimation error of less than (16.4 cm), based on the source location. The average error is (3.5 cm) for subjects that are very close to the light-emitting-diode (LEDs).The obtained results show the superiority of the proposed method in comparison with traditional short range radio frequency technologies such as RFID, Wi-Fi and Zigbee, making it a feasible system for localizing objects in underground mining.
Highlights
According to the International Labour Organization (ILO), every 15 seconds 153 workers have a work accident, and more than 317 million accidents occur at work, many of which result in work absenteeism
Whereas in [23], the authors proposed a new positioning algorithm for underground coal mines based on Zigbee technology, in which the nearest neighbor in signal space (NNSS) algorithm was adopted for the preliminary location and the dynamic triangular measurement (DTM) localization method was used for precise positioning
There are a number of problems with radio frequency (RF) systems applied to indoor localization, which include: (i) long response time and low accuracy; (ii) traditional short range RF technologies operated in the 2.4 GHz band do not provide large coverage in underground environments [25,26]; (iii) typical RF-based systems are not permitted in environments such as hospitals and airplanes, due to security reasons; (iv) technologies such as Wireless Fidelity (Wi-Fi), Zigbee, and RFID incur additional costs associated with the development and particular configuration when applied to large spaces; and (v) lower precision
Summary
Ali Dehghan Firoozabadi 1 , Cesar Azurdia-Meza 2, *, Ismael Soto 3 , Fabian Seguel 3,4 , Nicolas Krommenacker 4 , Daniel Iturralde 5 , Patrick Charpentier 4 and David Zabala-Blanco 6.
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