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Geolocation and communication in unfamiliar indoor environments through visible light

2021-03-05Conference object Restricted access
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dc.contributor.authorVieira, Manuela
dc.contributor.authorVieira, Manuel
dc.contributor.authorLouro, Paula
dc.contributor.authorFantoni, Alessandro
dc.contributor.authorVieira, Pedro
dc.date.accessioned2021-09-22T08:51:52Z
dc.date.available2021-09-22T08:51:52Z
dc.date.issued2021-03-05
dc.descriptionEste trabalho foi financiado pelo Concurso Anual para Projetos de Investigação, Desenvolvimento, Inovação e Criação Artística (IDI&CA) 2020 do Instituto Politécnico de Lisboa. Código de referência IPL/2020/GEO-LOC/ISEL
dc.description.abstractTo support people’s wayfinding activities in unfamiliar indoor environments, a method able to generate ceiling landmark route instructions using Visible Light Communication (VLC) is proposed. The system is composed of several transmitters (ceiling luminaries) which send the map information and path messages required to wayfinding. Mobile optical receivers, using joint transmission, extracts theirs location to perform positioning and, concomitantly, the transmitted data from each transmitter. Bidirectional communication between the emitters and the receivers is available in strategic optical access point. Typical scenarios are simulated and include finding places and guiding users across different floors. Data from the sender is encoded, modulated and converted into light signals emitted by the transmitters. Tetra-chromatic white sources are used, providing a different data channel for each chip. At the receiver, the modulated light signal, containing the ID and the 3D geographical position of the transmitter and wayfinding information, is received by SiC photodetectors with light filtering and demultiplexing properties. Since lighting and wireless data communication is combined, each luminaire for downlink transmission become a single cell, in which the optical access point (AP) is located. The coded light signals are interpreted directly by the receivers of the users positioned underneath. The effect of the location of the APs is evaluated and a model for the different cellular networks is analyzed. Orthogonal and hexagonal topologies are tested, and a 3D localization design, demonstrated by a prototype is presented. Uplink transmission is implemented and the 3D best route to navigate through venue calculated. The results show that the system make possible to determine the position of a mobile target inside the network, to infer the travel direction along the time and to interact with information received and optimize the route towards a static or dynamic destination.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVIEIRA, Manuela; [et al] – Geolocation and communication in unfamiliar indoor environments through visible light. In Proc. SPIE 11706 – Light-Emitting Devices, Materials, and Applications XXV. Vol. 11706, (2021), pp. 117060P-1- 117060P-11pt_PT
dc.identifier.doi10.1117/12.2576904pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/13777
dc.language.isoengpt_PT
dc.publisherSPIE OPTOpt_PT
dc.relationProjeto financiado no âmbito do Concurso de Projetos de Investigação, Desenvolvimento, Inovação & Criação Artística (IDI&CA) financiados pelo Instituto Politécnico de Lisboa. IPL/2020/GEO-LOC/ISELpt_PT
dc.relationCentre of Technology and Systems
dc.subjectVisible light communicationpt_PT
dc.subjectGeolocationpt_PT
dc.subjectIndoor navigationpt_PT
dc.subjectBidirectional communicationpt_PT
dc.subjectWayfindingpt_PT
dc.subjectOptical sensorspt_PT
dc.subjectIndoor multi-level environmentspt_PT
dc.subjectTransmitter/Receiverpt_PT
dc.subjectMultiplexing/Demultiplexingpt_PT
dc.titleGeolocation and communication in unfamiliar indoor environments through visible lightpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleCentre of Technology and Systems
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEEA%2F00066%2F2019/PT
oaire.citation.endPage117060P-11pt_PT
oaire.citation.startPage117060P-1pt_PT
oaire.citation.titleLight-Emitting Devices, Materials, and Applications XXVpt_PT
oaire.citation.volume11706pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameVieira
person.familyNameAugusto Vieira
person.familyNameLouro
person.familyNameFantoni
person.familyNameVieira
person.givenNameManuela
person.givenNameManuel
person.givenNamePaula
person.givenNameAlessandro
person.givenNamePedro
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person.identifier.orcid0000-0003-1385-3646
person.identifier.orcid0000-0002-4167-2052
person.identifier.orcid0000-0002-9938-0351
person.identifier.orcid0000-0003-0279-8741
person.identifier.ridV-7860-2017
person.identifier.ridU-8346-2017
person.identifier.ridK-1105-2016
person.identifier.scopus-author-id7202140173
person.identifier.scopus-author-id5719 1567905
person.identifier.scopus-author-id8845716400
person.identifier.scopus-author-id7006535604
person.identifier.scopus-author-id7004567421
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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