Local Positioning System Using Flickering Infrared LEDs

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 ch...

Full description

Saved in:
Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 17; no. 11; p. 2518
Main Authors Raharijaona, Thibaut, Mawonou, Rodolphe, Nguyen, Thanh Vu, Colonnier, Fabien, Boyron, Marc, Diperi, Julien, Viollet, Stéphane
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 03.11.2017
MDPI
Subjects
Automatic
Automatic Control Engineering
Computer Science
Electronics
Engineering Sciences
Feedback loops
Global positioning systems
GPS
Indoor environments
indoor positioning
infrared light communication
Infrared radiation
LED
Light emitting diodes
Localization
Optics
Organic light emitting diodes
photodiode (PD)
Photonic
Position sensing
Sensors
Signal processing
visual motion
Weight reduction
LED
visual motion
indoor positioning
infrared light communication
photodiode (PD)
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1424-8220
1424-8220
DOI:10.3390/s17112518