{"id":"https://openalex.org/W3048880044","doi":"https://doi.org/10.3390/s20164490","title":"Indoor Positioning System Based on Fuzzy Logic and WLAN Infrastructure","display_name":"Indoor Positioning System Based on Fuzzy Logic and WLAN Infrastructure","publication_year":2020,"publication_date":"2020-08-11","ids":{"openalex":"https://openalex.org/W3048880044","doi":"https://doi.org/10.3390/s20164490","mag":"3048880044","pmid":"https://pubmed.ncbi.nlm.nih.gov/32796643"},"language":"en","primary_location":{"id":"doi:10.3390/s20164490","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20164490","pdf_url":"https://www.mdpi.com/1424-8220/20/16/4490/pdf?version=1597200057","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/20/16/4490/pdf?version=1597200057","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006858834","display_name":"Jarom\u00edr Hrad","orcid":"https://orcid.org/0000-0002-4026-0080"},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Jaromir Hrad","raw_affiliation_strings":["Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0002-4026-0080","affiliations":[{"raw_affiliation_string":"Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042238174","display_name":"Luk\u00e1\u0161 Vojt\u011bch","orcid":"https://orcid.org/0000-0002-4418-7511"},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Lukas Vojtech","raw_affiliation_strings":["Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066154117","display_name":"Martin Cihlar","orcid":null},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Martin Cihlar","raw_affiliation_strings":["Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043676722","display_name":"Pavel Sta\u0161a","orcid":"https://orcid.org/0000-0003-0801-9737"},"institutions":[{"id":"https://openalex.org/I142208455","display_name":"VSB - Technical University of Ostrava","ror":"https://ror.org/05x8mcb75","country_code":"CZ","type":"education","lineage":["https://openalex.org/I142208455"]}],"countries":["CZ"],"is_corresponding":true,"raw_author_name":"Pavel Stasa","raw_affiliation_strings":["Department of Economics and Control Systems, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0003-0801-9737","affiliations":[{"raw_affiliation_string":"Department of Economics and Control Systems, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic","institution_ids":["https://openalex.org/I142208455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066011775","display_name":"Marek Neruda","orcid":"https://orcid.org/0000-0003-2783-6505"},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Marek Neruda","raw_affiliation_strings":["Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Telecommunications Engineering, Czech Technical University in Prague, Technick\u00e1 2, 166 27 Praha 6, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019587662","display_name":"Filip Bene\u0161","orcid":"https://orcid.org/0000-0001-9997-6078"},"institutions":[{"id":"https://openalex.org/I142208455","display_name":"VSB - Technical University of Ostrava","ror":"https://ror.org/05x8mcb75","country_code":"CZ","type":"education","lineage":["https://openalex.org/I142208455"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Filip Benes","raw_affiliation_strings":["Department of Economics and Control Systems, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0001-9997-6078","affiliations":[{"raw_affiliation_string":"Department of Economics and Control Systems, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic","institution_ids":["https://openalex.org/I142208455"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036913481","display_name":"Ji\u0159\u00ed \u0160vub","orcid":"https://orcid.org/0000-0001-5374-3359"},"institutions":[{"id":"https://openalex.org/I142208455","display_name":"VSB - Technical University of Ostrava","ror":"https://ror.org/05x8mcb75","country_code":"CZ","type":"education","lineage":["https://openalex.org/I142208455"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Jiri Svub","raw_affiliation_strings":["Department of Economics and Control Systems, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0001-5374-3359","affiliations":[{"raw_affiliation_string":"Department of Economics and Control Systems, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic","institution_ids":["https://openalex.org/I142208455"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5043676722"],"corresponding_institution_ids":["https://openalex.org/I142208455"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2022,"currency":"EUR","value_usd":2180},"fwci":0.2081,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.51407257,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"20","issue":"16","first_page":"4490","last_page":"4490"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13121","display_name":"Radio Wave Propagation Studies","score":0.9876000285148621,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.9835000038146973,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/fuzzy-logic","display_name":"Fuzzy logic","score":0.652647078037262},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6417773962020874},{"id":"https://openalex.org/keywords/android","display_name":"Android (operating system)","score":0.6159129738807678},{"id":"https://openalex.org/keywords/mobile-device","display_name":"Mobile device","score":0.556071400642395},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.5558197498321533},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.5265995264053345},{"id":"https://openalex.org/keywords/indoor-positioning-system","display_name":"Indoor positioning system","score":0.5016968250274658},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.4896257519721985},{"id":"https://openalex.org/keywords/signal-strength","display_name":"Signal strength","score":0.46885618567466736},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.45776063203811646},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4391219913959503},{"id":"https://openalex.org/keywords/wireless-sensor-network","display_name":"Wireless sensor network","score":0.24722382426261902},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17847517132759094},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.15687164664268494},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15182051062583923},{"id":"https://openalex.org/keywords/accelerometer","display_name":"Accelerometer","score":0.14056745171546936}],"concepts":[{"id":"https://openalex.org/C58166","wikidata":"https://www.wikidata.org/wiki/Q224821","display_name":"Fuzzy logic","level":2,"score":0.652647078037262},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6417773962020874},{"id":"https://openalex.org/C557433098","wikidata":"https://www.wikidata.org/wiki/Q94","display_name":"Android (operating system)","level":2,"score":0.6159129738807678},{"id":"https://openalex.org/C186967261","wikidata":"https://www.wikidata.org/wiki/Q5082128","display_name":"Mobile device","level":2,"score":0.556071400642395},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.5558197498321533},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.5265995264053345},{"id":"https://openalex.org/C2777486483","wikidata":"https://www.wikidata.org/wiki/Q6026477","display_name":"Indoor positioning system","level":3,"score":0.5016968250274658},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.4896257519721985},{"id":"https://openalex.org/C176808163","wikidata":"https://www.wikidata.org/wiki/Q17105794","display_name":"Signal strength","level":3,"score":0.46885618567466736},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.45776063203811646},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4391219913959503},{"id":"https://openalex.org/C24590314","wikidata":"https://www.wikidata.org/wiki/Q336038","display_name":"Wireless sensor network","level":2,"score":0.24722382426261902},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17847517132759094},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.15687164664268494},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15182051062583923},{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.14056745171546936},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":6,"locations":[{"id":"doi:10.3390/s20164490","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20164490","pdf_url":"https://www.mdpi.com/1424-8220/20/16/4490/pdf?version=1597200057","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:32796643","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/32796643","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:7dca143c37614e5a821715038c8152af","is_oa":true,"landing_page_url":"https://doaj.org/article/7dca143c37614e5a821715038c8152af","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 20, Iss 16, p 4490 (2020)","raw_type":"article"},{"id":"pmh:oai:dspace.vsb.cz:10084/142354","is_oa":true,"landing_page_url":"http://hdl.handle.net/10084/142354","pdf_url":null,"source":{"id":"https://openalex.org/S4306401668","display_name":"DSpace V\u0160B-TUO (V\u0160B-TUO)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I142208455","host_organization_name":"VSB - Technical University of Ostrava","host_organization_lineage":["https://openalex.org/I142208455"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/20/16/4490/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s20164490","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 20; Issue 16; Pages: 4490","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7472030","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7472030","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s20164490","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20164490","pdf_url":"https://www.mdpi.com/1424-8220/20/16/4490/pdf?version=1597200057","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.6499999761581421}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3048880044.pdf"},"referenced_works_count":30,"referenced_works":["https://openalex.org/W1758464101","https://openalex.org/W1821068864","https://openalex.org/W1981373725","https://openalex.org/W2001579261","https://openalex.org/W2005598601","https://openalex.org/W2024060531","https://openalex.org/W2029399898","https://openalex.org/W2034214983","https://openalex.org/W2035136797","https://openalex.org/W2050288270","https://openalex.org/W2050582265","https://openalex.org/W2055463274","https://openalex.org/W2063553463","https://openalex.org/W2077287651","https://openalex.org/W2081850271","https://openalex.org/W2096524691","https://openalex.org/W2108482152","https://openalex.org/W2124227618","https://openalex.org/W2145938889","https://openalex.org/W2154061444","https://openalex.org/W2278572312","https://openalex.org/W2565932461","https://openalex.org/W2612506043","https://openalex.org/W2750407118","https://openalex.org/W2787790784","https://openalex.org/W2990268444","https://openalex.org/W3087940852","https://openalex.org/W3090294749","https://openalex.org/W4233833434","https://openalex.org/W6731602629"],"related_works":["https://openalex.org/W2534066750","https://openalex.org/W2149771547","https://openalex.org/W2152888394","https://openalex.org/W2418090752","https://openalex.org/W2181368252","https://openalex.org/W2571879291","https://openalex.org/W2084119653","https://openalex.org/W4226482087","https://openalex.org/W2905334256","https://openalex.org/W2971366094"],"abstract_inverted_index":{"This":[0],"paper":[1],"deals":[2],"with":[3],"the":[4,11,51,66,92,120,160,167],"issue":[5],"of":[6,13,70,99,124,162,169],"mobile":[7,76,104,148],"device":[8,165],"localization":[9,27,93,96,121],"in":[10,20,61,74,144],"environment":[12,117],"buildings,":[14],"which":[15,102],"is":[16,29,88,142,156],"suitable":[17],"for":[18,54,106,118,146,158],"use":[19,127],"healthcare":[21],"or":[22],"crisis":[23],"management.":[24],"The":[25,56,95,139,153],"developed":[26,140],"system":[28,97,141],"based":[30,84],"on":[31,85,133,166],"wireless":[32],"Local":[33],"Area":[34],"Network":[35],"(LAN)":[36],"infrastructure":[37],"(commonly":[38],"referred":[39],"to":[40,90],"as":[41],"Wi-Fi),":[42],"evaluating":[43],"signal":[44,63],"strength":[45],"from":[46],"different":[47,67,75],"access":[48],"points,":[49],"using":[50],"fingerprinting":[52],"method":[53],"localization.":[55],"most":[57],"serious":[58],"problems":[59],"consist":[60],"multipath":[62],"propagation":[64],"and":[65,113,130,150],"sensitivities":[68],"(calibration)":[69],"Wi-Fi":[71],"adapters":[72],"installed":[73],"devices.":[77],"To":[78],"solve":[79],"these":[80,125],"issues,":[81],"an":[82],"algorithm":[83],"fuzzy":[86,110],"logic":[87],"proposed":[89],"optimize":[91],"performance.":[94],"consists":[98],"five":[100],"elements,":[101],"are":[103],"applications":[105],"Android":[107],"OS,":[108],"a":[109,114,128,134,163],"derivation":[111],"model,":[112],"web":[115],"surveillance":[116],"displaying":[119],"results.":[122],"All":[123],"elements":[126],"database":[129],"shared":[131],"storage":[132],"virtualized":[135],"server":[136],"running":[137],"Ubuntu.":[138],"implemented":[143],"Java":[145],"Android-based":[147],"devices":[149],"successfully":[151],"tested.":[152],"average":[154],"accuracy":[155],"satisfactory":[157],"determining":[159],"position":[161],"client":[164],"level":[168],"rooms.":[170]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-05-22T06:13:13.366637","created_date":"2025-10-10T00:00:00"}