{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T18:02:32Z","timestamp":1777572152593,"version":"3.51.4"},"reference-count":14,"publisher":"Walter de Gruyter GmbH","issue":"5","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Nowadays public buildings are changing constantly, often people have to take different routes to reach known destinations. At the same time, new services and places are made available to attract more people to the shopping center. This dynamic environment is usually signalled and labelled with visual marks and signs which are not appropriated for blind persons. Therefore, blind users are unintentionally deprived of a full participation in the society. With the purpose of equalize the access to services and spaces among all persons, this work proposes an innovative indoor navigation and information system for public buildings, namely shopping centers, based on existing technologies not used for this purpose. Intending to allow a comfortable and helpful aid on blind persons trips to the shopping center, this proposal system relies on users smartphone and wireless sensors deployed in the environment.<\/jats:p>","DOI":"10.21307\/ijssis-2019-062","type":"journal-article","created":{"date-parts":[[2020,2,14]],"date-time":"2020-02-14T09:00:41Z","timestamp":1581670841000},"page":"1-4","source":"Crossref","is-referenced-by-count":7,"title":["Information and Assisted Navigation System for Blind People"],"prefix":"10.2478","volume":"7","author":[{"given":"Karen","family":"Duarte","sequence":"first","affiliation":[{"name":"Department of Informatics Engineering University of Coimbra , Coimbra Portugal"}]},{"given":"Jose","family":"Cec\u2019lio","sequence":"additional","affiliation":[{"name":"Department of Informatics Engineering University of Coimbra , Coimbra Portugal"}]},{"given":"Jorge Sa","family":"Silva","sequence":"additional","affiliation":[{"name":"Department of Informatics Engineering University of Coimbra , Coimbra Portugal"}]},{"given":"Pedro","family":"Furtado","sequence":"additional","affiliation":[{"name":"Department of Informatics Engineering University of Coimbra , Coimbra Portugal"}]}],"member":"374","published-online":{"date-parts":[[2020,2,15]]},"reference":[{"key":"2026042812100380139_j_ijssis-2019-062_ref_001","unstructured":"AL-KHALIFA Hend, Utilizing QR Code and Mobile Phones for Blinds and Visually Impaired People. 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Third International Workshop, IWAAL 2011, Held at IWA\u00d1\u00d1 2011, Torremolinos-Mlaga, Spain, June 8-10, 2011."},{"key":"2026042812100380139_j_ijssis-2019-062_ref_011","unstructured":"MAU Sandra et al., BlindAid: An Electronic Travel Aid for the Blind. The Robotics Institute - Carnegie Mellon University, Pittsburgh, Pennsylvania. May 2008."},{"key":"2026042812100380139_j_ijssis-2019-062_ref_012","doi-asserted-by":"crossref","unstructured":"\u00d1ICHOLSO\u00d1 John, KULYUKI\u00d1 Vladimir and COSTER Daniel, ShopTalk: Independent Blind Shopping Through Verbal Route Directions and Barcode Scans. The Open Rehabilitation Journal, 2009, 2, 11-23.","DOI":"10.2174\/1874943700902010011"},{"key":"2026042812100380139_j_ijssis-2019-062_ref_013","unstructured":"VARPE Kanchan and WA\u00d1KHADE M. P., Survey of Visually Impaired Assistive System. 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