{"id":"https://openalex.org/W2044629176","doi":"https://doi.org/10.1145/1367943.1367947","title":"A ZigBee-based sensor node for tracking people's locations","display_name":"A ZigBee-based sensor node for tracking people's locations","publication_year":2008,"publication_date":"2008-05-19","ids":{"openalex":"https://openalex.org/W2044629176","doi":"https://doi.org/10.1145/1367943.1367947","mag":"2044629176"},"language":"en","primary_location":{"id":"doi:10.1145/1367943.1367947","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1367943.1367947","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd ACM international conference on Context-awareness for self-managing systems","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064612688","display_name":"Satoshi Takahashi","orcid":"https://orcid.org/0000-0001-5573-7841"},"institutions":[{"id":"https://openalex.org/I98285908","display_name":"Osaka University","ror":"https://ror.org/035t8zc32","country_code":"JP","type":"education","lineage":["https://openalex.org/I98285908"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Satoshi Takahashi","raw_affiliation_strings":["ATR Knowledge Science Laboratories, Kyoto, Japan and Osaka University, Suita, Osaka, Japan"],"affiliations":[{"raw_affiliation_string":"ATR Knowledge Science Laboratories, Kyoto, Japan and Osaka University, Suita, Osaka, Japan","institution_ids":["https://openalex.org/I98285908"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104084065","display_name":"Jeffrey Wong","orcid":null},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Jeffrey Wong","raw_affiliation_strings":["Simon Fraser University, Vancouver, BC, Canada","Simon Fraser University, Vancouver, BC, CANADA"],"affiliations":[{"raw_affiliation_string":"Simon Fraser University, Vancouver, BC, Canada","institution_ids":["https://openalex.org/I18014758"]},{"raw_affiliation_string":"Simon Fraser University, Vancouver, BC, CANADA","institution_ids":["https://openalex.org/I18014758"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005084698","display_name":"Masakazu Miyamae","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Masakazu Miyamae","raw_affiliation_strings":["ATR Knowledge Science Laboratories, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"ATR Knowledge Science Laboratories, Kyoto, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015618793","display_name":"Tsutomu Terada","orcid":"https://orcid.org/0000-0003-2260-3788"},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tsutomu Terada","raw_affiliation_strings":["ATR Knowledge Science Laboratories, Kyoto, Japan and Kobe University, Kobe, Hyogo, Japan"],"affiliations":[{"raw_affiliation_string":"ATR Knowledge Science Laboratories, Kyoto, Japan and Kobe University, Kobe, Hyogo, Japan","institution_ids":["https://openalex.org/I65837984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004290144","display_name":"Haruo Noma","orcid":"https://orcid.org/0000-0002-7924-6083"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Haruo Noma","raw_affiliation_strings":["ATR Knowledge Science Laboratories, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"ATR Knowledge Science Laboratories, Kyoto, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108384524","display_name":"Tomoji Toriyama","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tomoji Toriyama","raw_affiliation_strings":["ATR Knowledge Science Laboratories, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"ATR Knowledge Science Laboratories, Kyoto, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018322205","display_name":"Kiyoshi Kogure","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Kiyoshi Kogure","raw_affiliation_strings":["ATR Knowledge Science Laboratories, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"ATR Knowledge Science Laboratories, Kyoto, Japan","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5063345953","display_name":"Shojiro Nishio","orcid":null},"institutions":[{"id":"https://openalex.org/I98285908","display_name":"Osaka University","ror":"https://ror.org/035t8zc32","country_code":"JP","type":"education","lineage":["https://openalex.org/I98285908"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shojiro Nishio","raw_affiliation_strings":["Osaka University, Suita, Osaka, Japan","Osaka University, Suita, OSAKA, Japan"],"affiliations":[{"raw_affiliation_string":"Osaka University, Suita, Osaka, Japan","institution_ids":["https://openalex.org/I98285908"]},{"raw_affiliation_string":"Osaka University, Suita, OSAKA, Japan","institution_ids":["https://openalex.org/I98285908"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5064612688"],"corresponding_institution_ids":["https://openalex.org/I98285908"],"apc_list":null,"apc_paid":null,"fwci":1.90808489,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.88871078,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"34","last_page":"38"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10080","display_name":"Energy Efficient Wireless Sensor Networks","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10080","display_name":"Energy Efficient Wireless Sensor Networks","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12222","display_name":"IoT-based Smart Home Systems","score":0.9958000183105469,"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/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9926000237464905,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/wireless-sensor-network","display_name":"Wireless sensor network","score":0.7710287570953369},{"id":"https://openalex.org/keywords/sensor-node","display_name":"Sensor node","score":0.6907801628112793},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6643908023834229},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.6617411971092224},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.6542432904243469},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.6311361789703369},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.5852034687995911},{"id":"https://openalex.org/keywords/battery","display_name":"Battery (electricity)","score":0.549515962600708},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.4759364128112793},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.44594845175743103},{"id":"https://openalex.org/keywords/time-synchronization","display_name":"Time synchronization","score":0.4158358573913574},{"id":"https://openalex.org/keywords/key-distribution-in-wireless-sensor-networks","display_name":"Key distribution in wireless sensor networks","score":0.4113519489765167},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.40295088291168213},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.28442829847335815},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.23277577757835388},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.11738595366477966},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11562907695770264},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.09934607148170471}],"concepts":[{"id":"https://openalex.org/C24590314","wikidata":"https://www.wikidata.org/wiki/Q336038","display_name":"Wireless sensor network","level":2,"score":0.7710287570953369},{"id":"https://openalex.org/C111185680","wikidata":"https://www.wikidata.org/wiki/Q3866206","display_name":"Sensor node","level":5,"score":0.6907801628112793},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6643908023834229},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.6617411971092224},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6542432904243469},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.6311361789703369},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.5852034687995911},{"id":"https://openalex.org/C555008776","wikidata":"https://www.wikidata.org/wiki/Q267298","display_name":"Battery (electricity)","level":3,"score":0.549515962600708},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.4759364128112793},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.44594845175743103},{"id":"https://openalex.org/C2986737936","wikidata":"https://www.wikidata.org/wiki/Q1058791","display_name":"Time synchronization","level":2,"score":0.4158358573913574},{"id":"https://openalex.org/C41971633","wikidata":"https://www.wikidata.org/wiki/Q6398155","display_name":"Key distribution in wireless sensor networks","level":4,"score":0.4113519489765167},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.40295088291168213},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.28442829847335815},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.23277577757835388},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.11738595366477966},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11562907695770264},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.09934607148170471},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1367943.1367947","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1367943.1367947","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd ACM international conference on Context-awareness for self-managing systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8899999856948853,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320335839","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W422064111","https://openalex.org/W1592791773","https://openalex.org/W2105108452","https://openalex.org/W2160017277","https://openalex.org/W2167088460","https://openalex.org/W4244736679"],"related_works":["https://openalex.org/W2885105415","https://openalex.org/W2166939931","https://openalex.org/W4231087120","https://openalex.org/W2031096545","https://openalex.org/W2322793796","https://openalex.org/W2548702785","https://openalex.org/W2799361348","https://openalex.org/W1631301428","https://openalex.org/W2361721963","https://openalex.org/W1566366401"],"abstract_inverted_index":{"A":[0],"sensor":[1,33,66,91,108],"network":[2,18],"system":[3,19],"has":[4],"been":[5],"developed":[6],"for":[7,20,50],"tracking":[8],"people's":[9],"locations":[10],"in":[11,24,111],"workplaces":[12],"as":[13],"part":[14],"of":[15,30],"a":[16,32,51,64,79,85,107,112],"ubiquitous":[17],"providing":[21],"context-aware":[22],"services":[23],"daily":[25],"activities.":[26],"Since":[27],"the":[28],"installation":[29],"such":[31],"is":[34],"desired":[35],"any":[36],"place":[37],"within":[38],"its":[39,74],"target":[40],"domain":[41],"with":[42],"few":[43],"limitations,":[44],"it":[45],"must":[46],"operate":[47],"by":[48,77],"battery":[49],"relatively":[52],"long":[53],"time,":[54],"e.g.,":[55],"one":[56],"month.":[57],"To":[58],"satisfy":[59],"this":[60],"requirement,":[61],"we":[62,104],"designed":[63],"battery-operated":[65],"node":[67,109],"based":[68,99],"on":[69,100],"ZigBee":[70],"technology":[71],"and":[72,84],"extended":[73],"operation":[75],"period":[76],"developing":[78],"flexible":[80],"sleep":[81],"control":[82],"protocol":[83],"high-accuracy":[86],"time":[87],"synchronization":[88],"mechanism":[89],"between":[90],"nodes":[92],"to":[93],"reduce":[94],"power":[95],"consumption.":[96],"From":[97],"simulations":[98],"actual":[101],"data":[102],"collected,":[103],"confirmed":[105],"that":[106],"located":[110],"hospital's":[113],"medical":[114],"ward":[115],"can":[116],"work":[117],"over":[118],"21":[119],"days":[120],"using":[121],"four":[122],"AA":[123],"Ni-H":[124],"batteries.":[125]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}