Visible Light Positioning and Lighting Based on Identity Positioning and RF Carrier Allocation Technique Using a Solar Cell Receiver

Hsu, Chin-Wei; Wu, Jhao-Ting; Wang, Haoyu; Chow, Chi‐Wai; Lee, Chun-Hsing; Chu, Mu-Tao; Yeh, Chien‐Hung

doi:10.1109/jphot.2016.2590945

Cited by 62 publications

(36 citation statements)

References 11 publications

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“…Hsu et al [15] they proposed and experimentally tested an indoor positioning system which consolidates source identity positioning and radio frequency carrier allocation technique in order to reduce the signal interference from close-by light-emitting diodes (LEDs) and enhance the exactness of positioning. Furthermore, the solar cell is utilized as an optical receiver for the obvious light positioning system.…”

Section: Literature Reviewmentioning

confidence: 99%

Position Control of Solar Panel Receiver by Joint Generated Power and Received Signal Power Maximization

Mohammed

2018

Tikrit j. eng. sci.

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Keywords: Solar panel microcontroller receiver design optical wireless communication (OWC) sun tracking A R T I C L E I N F O A B S T R A C TThe use of solar cells as photodetectors in Optical Wireless Communications (OWC) systems, is acquiring an increasing attention. This is due to the fact that a solar cell can detect an incident optical signal without the need to be biased by an external dc source, unlike traditional photodetectors. Basically, solar cells are designed to be used in solar energy harvesting systems. However, the solar cells are used during the day time and they remain idle at night. Then, they can be used in other applications, such as optical signal detection during night hours. Moreover, the efficiency of solar systems and solar receivers can be maximized by using dual axis light source tracking, to keep the cell orientation at the direction that results in the maximum electrical output. Therefore, in this paper, a solar cell positioning algorithm is proposed to track the maximum power point of both of the sun at day time and the optical communication signal at night. The proposed system can automatically distinguish between its two operation modes and then provides the necessary control. The proposed system is implemented and tested under realistic outdoor environment. It showed an accurate detection of the operation situation and also an accurate and smooth positioning during the specific operation mode. The measurement of the generated and consumed power by the designed system has emphasized it feasibility.

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Section: Literature Reviewmentioning

confidence: 99%

Position Control of Solar Panel Receiver by Joint Generated Power and Received Signal Power Maximization

Mohammed

2018

Tikrit j. eng. sci.

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“…The center column represents examples of various channel impairments, which influence the transmitted signal. The right column presents examples of receiving solutions, spanning from conventional PIN photodetectors [5][6][7][8][9] to pricier avalanche photo diodes (APDs) [10][11][12], advanced CMOS cameras [13][14][15][16][17], and inexpensive alternatives in solar panels [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Software Defined Equalization Techniques for Indoor Visible Light Communication

Martínek

Danys

Jaroš

2020

Sensors

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This paper focuses on a channel feed-forward software defined equalization (FSDE) of visible light communication (VLC) multistate quadrature amplitude modulation (M-QAM) based system, implemented in the LabVIEW programming environment. A highly modular platform is introduced; the whole experiment is simulated in software and then thoroughly explored and analyzed during practical measurements in the laboratory, simulating real-world situations. The whole platform is based on modified National Instruments software defined radios (NI SDR) and a commercially available Philips light source, often used in Czech government institutions. Three FSDE algorithms were tested: least mean squares (LMS), normalized least mean squares (NLMS), and QR decomposition based RLS (QR-RLS). Based on measurements, QR-RLS provides the best results, improving measured values by up to 10%. The experiments also show that the simulated results are very similar to real measurements, thus proving the validity of the chosen approach. The whole platform manages to improve measured data simply by making changes to the software side of the testing prototype.

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“…We aim at using off-the-shelf PDs without lens instead of specific PDs as proposed in [19]. The IPS aims at accurately estimating the pose (position and orientation) of a robot in a set of critical areas such as near edges, near entrance and exit of corridors using a fixed beacon and a embedded receiver while the repeated unit cells of LEDs define the visual light positioning system in [20], [21].…”

Section: Introductionmentioning

confidence: 99%

A Three-Photo-Detector Optical Sensor Accurately Localizes a Mobile Robot Indoors by Using Two Infrared Light-Emitting Diodes

2020

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Indoor positioning systems are facing to the demand of large-scale industrial applications in mobile robotics. It is still challenging to create an indoor positioning system that is easily embeddable, accurate, robust and power efficient. We constructed an easily embeddable, low-power optical sensor named InLock without lens to localize a mobile robot indoors moving at 0.20 m/s with an accuracy inferior to 10cm for the position and 0.1rad for the heading by using only three photo-detectors (PDs) and two infrared Light-Emitting Diodes (LEDs). (i) We modelled the optical sensor based on only three photo-detectors and two infrared LEDs by taking into account radiometric properties. (ii) We constructed the optical sensor by optimizing the geometry of the beacon and the receiver. (iii) We implemented and validated online estimation algorithms for an operating range at a height up to 3m by using an extended Kalman filter and a complementary filter. Our results showed that modelling the optical sensor so that it takes into account radiometric properties and it optimizes the geometry of the beacon can enhance the accuracy of the indoor positioning system.

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Visible Light Positioning and Lighting Based on Identity Positioning and RF Carrier Allocation Technique Using a Solar Cell Receiver

Cited by 62 publications

References 11 publications

Position Control of Solar Panel Receiver by Joint Generated Power and Received Signal Power Maximization

Position Control of Solar Panel Receiver by Joint Generated Power and Received Signal Power Maximization

Adaptive Software Defined Equalization Techniques for Indoor Visible Light Communication

A Three-Photo-Detector Optical Sensor Accurately Localizes a Mobile Robot Indoors by Using Two Infrared Light-Emitting Diodes

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