Local Positioning System Using Flickering Infrared LEDs.
| Autor: | Raharijaona T; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. thibaut.raharijaona@univ-amu.fr., Mawonou R; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. Kodjo.Mawonou@supelec.fr., Nguyen TV; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. ngthanh.vu94@gmail.com., Colonnier F; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. tslftac@nus.edu.sg.; Temasek Labs, National University of Singapore, Singapore 117411, Singapore. tslftac@nus.edu.sg., Boyron M; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. marc.boyron@univ-amu.fr., Diperi J; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. julien.diperi@univ-amu.fr., Viollet S; Aix Marseille University, CNRS, ISM, Marseille 13009 , France. stephane.viollet@univ-amu.fr. |
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| Jazyk: | angličtina |
| Zdroj: | Sensors (Basel, Switzerland) [Sensors (Basel)] 2017 Nov 03; Vol. 17 (11). Date of Electronic Publication: 2017 Nov 03. |
| DOI: | 10.3390/s17112518 |
| Abstrakt: | 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 cm 3 ), 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. Competing Interests: The authors declare no conflict of interest. |
| Databáze: | MEDLINE |
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