Please use this identifier to cite or link to this item: https://doi.org/10.3390/s17112518
Title: Local positioning system using flickering infrared LEDs
Authors: Raharijaona, T
Mawonou, R
Vu Nguyen, T
Colonnier, F 
Boyron, M
Diperi, J
Viollet, S
Keywords: Flickering
Indoor positioning systems
Robotics
Signal processing
Analog signal processing
Azimuth and elevation angles
Computational resources
Indoor positioning
Infrared light
Infrared light emitting diodes
Local positioning system
Visual motion
Light emitting diodes
Issue Date: 2017
Publisher: MDPI AG
Citation: Raharijaona, T, Mawonou, R, Vu Nguyen, T, Colonnier, F, Boyron, M, Diperi, J, Viollet, S (2017). Local positioning system using flickering infrared LEDs. Sensors (Switzerland) 17 (11) : 2518. ScholarBank@NUS Repository. https://doi.org/10.3390/s17112518
Rights: Attribution 4.0 International
Abstract: A minimalistic optical sensing device for the indoor localization is proposed to estimate the relative position between the sensor and active markers using amplitude modulated infrared light. The innovative insect-based sensor can measure azimuth and elevation angles with respect to two small and cheap active infrared light emitting diodes (LEDs) flickering at two different frequencies. In comparison to a previous lensless visual sensor that we proposed for proximal localization (less than 30 cm), we implemented: (i) a minimalistic sensor in terms of small size (10 cm3), light weight (6 g) and low power consumption (0.4 W); (ii) an Arduino-compatible demodulator for fast analog signal processing requiring low computational resources; and (iii) an indoor positioning system for a mobile robotic application. Our results confirmed that the proposed sensor was able to estimate the position at a distance of 2 m with an accuracy as small as 2-cm at a sampling frequency of 100 Hz. Our sensor can be also suitable to be implemented in a position feedback loop for indoor robotic applications in GPS-denied environment. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.
Source Title: Sensors (Switzerland)
URI: https://scholarbank.nus.edu.sg/handle/10635/179078
ISSN: 14248220
DOI: 10.3390/s17112518
Rights: Attribution 4.0 International
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