Indoor positioning system using a WDM device based on a-SiC: H technology

M. A. Vieira, P. Louro, L. Mateus, P. Vieira, Maria Manuela de Almeida Carvalho Vieira

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this paper, we present an indoor positioning system were trichromatic white LEDs are used as transmitters and an optical processor based on a-SiC:H technology as mobile receiver. The optical processor is realized using a double p-i-n photodetector with two UV light biased gates. The relationship between the optical inputs (transmitted data) and the corresponding digital output levels (received data) is established and decoded. The received signal is used in coded multiplexing techniques for supporting communications and navigation concomitantly on the same channel. The position of the device is estimated using the visible multilateration method through the strength of the signal received from several non-collinear transmitters. The location and motion information is found by mapping position and estimates the location areas. Since the indoor position and transmitted data of the different LED light sources is known from building floor plans and lighting plans, the corresponding transmitted data information, indoor position and travel direction of the mobile device can be determined.

Original languageEnglish
Pages (from-to)135-138
Number of pages4
JournalJournal of Luminescence
Volume191
DOIs
Publication statusPublished - Nov 2017

Fingerprint

Wavelength division multiplexing
positioning
Light emitting diodes
Transmitters
Technology
Equipment and Supplies
Ultraviolet Rays
Photodetectors
Lighting
Multiplexing
Mobile devices
Ultraviolet radiation
Light sources
Navigation
Light
transmitters
central processing units
Communication
light emitting diodes
navigation

Keywords

  • a-SiC:H technology
  • Decode algorithm
  • Indoor positioning system
  • MUX/DEMUX device
  • Visible multilateration metodh

Cite this

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title = "Indoor positioning system using a WDM device based on a-SiC: H technology",
abstract = "In this paper, we present an indoor positioning system were trichromatic white LEDs are used as transmitters and an optical processor based on a-SiC:H technology as mobile receiver. The optical processor is realized using a double p-i-n photodetector with two UV light biased gates. The relationship between the optical inputs (transmitted data) and the corresponding digital output levels (received data) is established and decoded. The received signal is used in coded multiplexing techniques for supporting communications and navigation concomitantly on the same channel. The position of the device is estimated using the visible multilateration method through the strength of the signal received from several non-collinear transmitters. The location and motion information is found by mapping position and estimates the location areas. Since the indoor position and transmitted data of the different LED light sources is known from building floor plans and lighting plans, the corresponding transmitted data information, indoor position and travel direction of the mobile device can be determined.",
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Indoor positioning system using a WDM device based on a-SiC : H technology. / Vieira, M. A.; Louro, P.; Mateus, L.; Vieira, P.; Vieira, Maria Manuela de Almeida Carvalho.

In: Journal of Luminescence, Vol. 191, 11.2017, p. 135-138.

Research output: Contribution to journalArticle

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