{"created":"2023-05-15T12:00:43.653824+00:00","id":7652,"links":{},"metadata":{"_buckets":{"deposit":"bb53f6f3-6807-4175-a236-c8db6dd93d32"},"_deposit":{"created_by":3,"id":"7652","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"7652"},"status":"published"},"_oai":{"id":"oai:kyutech.repo.nii.ac.jp:00007652","sets":["8:24"]},"author_link":["33158","25154","899","19491","33162","33163"],"control_number":"7652","item_1689815586683":{"attribute_name":"CRID","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://cir.nii.ac.jp/crid/1050010687862589184","subitem_relation_type_select":"URI"}}]},"item_21_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-03-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"433","bibliographicPageEnd":"175","bibliographicPageStart":"171","bibliographicVolumeNumber":"121","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会技術研究報告. NS, ネットワークシステム","bibliographic_titleLang":"ja"}]}]},"item_21_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Internet of Things (IoT) 技術の進展に伴い，走行車両に搭載した様々なセンサの情報を収集・分析することにより様々な社会課題や交通課題を解決できると期待されている．車両によって取得したデータを継続的に広域から効率よく収集するためには，Low Power Wide Area (LPWA) 無線通信の利用が効果的である．しかし，車両は高速な移動に伴って無線通信環境が常に変化するため，低データレートで通信するLPWAの特性上，安定した通信性能を得ることが難しい．そこで本研究では，LPWAの一つであるPrivate LoRaを用いた移動車両からの効率的なデータ収集を実現する送信制御手法として，車載器が基地局から定期的に送信されるビーコン信号を受信した際の受信電波強度に基づき適切な拡散率を選択しデータを送信する手法を提案する．さらに，提案手法の機能を実機に実装し，実証実験によってその有効性を検証する．","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"With the spread of Internet of Things technologies, it is expected that various social and traffic problems can be solved by collecting and analyzing information of various sensors mounted on moving vehicles. The utilization of the radio communication by low power wide area (LPWA) is examined to continuously collect the data acquired by the vehicles from the wide area. However, it is difficult to achieve stable communication performance due to the characteristics of LPWA that communicate at a low data rate because the wireless communication environment between the vehicle and a base station constantly changes with high-speed movement. In this paper, we propose a transmission control method that achieves efficient data collection from moving vehicles using Private LoRa, which is one of the LPWA communication, and evaluate its effectiveness using an actual experiment.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_21_description_5":{"attribute_name":"備考","attribute_value_mlt":[{"subitem_description":"電子情報通信学会 ネットワークシステム研究会（NS）, 2022年3月10日-11日, オンライン開催","subitem_description_type":"Other"}]},"item_21_publisher_7":{"attribute_name":"出版社","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会","subitem_publisher_language":"ja"}]},"item_21_relation_38":{"attribute_name":"URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.ieice.org/ken/paper/20220311YCjL/","subitem_relation_type_select":"URI"}}]},"item_21_rights_13":{"attribute_name":"著作権関連情報","attribute_value_mlt":[{"subitem_rights":"Copyright(C)2022 IEICE"}]},"item_21_select_59":{"attribute_name":"査読の有無","attribute_value_mlt":[{"subitem_select_item":"no"}]},"item_21_source_id_10":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AA11546431","subitem_source_identifier_type":"NCID"}]},"item_21_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2432-6380","subitem_source_identifier_type":"EISSN"},{"subitem_source_identifier":"0913-5685","subitem_source_identifier_type":"PISSN"}]},"item_21_subject_16":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"547","subitem_subject_scheme":"NDC"}]},"item_21_text_63":{"attribute_name":"連携ID","attribute_value_mlt":[{"subitem_text_value":"10316"}]},"item_21_version_type_58":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"脇元, 翔太","creatorNameLang":"ja"},{"creatorName":"Wakimoto, Shouta","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNames":[{}]}],"creatorNames":[{"creatorName":"Nobayashi, Daiki","creatorNameLang":"en"},{"creatorName":"野林, 大起","creatorNameLang":"ja"},{"creatorName":"ノバヤシ, ダイキ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{},{},{}]},{"creatorAffiliations":[{"affiliationNames":[{}]}],"creatorNames":[{"creatorName":"Tsukamoto, Kazuya","creatorNameLang":"en"},{"creatorName":"塚本, 和也","creatorNameLang":"ja"},{"creatorName":"ツカモト, カズヤ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{},{},{}]},{"creatorAffiliations":[{"affiliationNames":[{}]}],"creatorNames":[{"creatorName":"Ikenaga, Takeshi","creatorNameLang":"en"},{"creatorName":"池永, 全志","creatorNameLang":"ja"},{"creatorName":"イケナガ, タケシ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{},{},{},{}]},{"creatorNames":[{"creatorName":"佐藤, 剛至","creatorNameLang":"ja"},{"creatorName":"Sato, Goshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"滝沢, 賢一","creatorNameLang":"ja"},{"creatorName":"Takizawa, Kenichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-05-18"}],"displaytype":"detail","filename":"RECN_2021-59.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"RECN_2021-59.pdf","url":"https://kyutech.repo.nii.ac.jp/record/7652/files/RECN_2021-59.pdf"},"version_id":"02ba062a-2aa7-45af-9ad2-1881248dc58a"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"走行車両データ収集","subitem_subject_scheme":"Other"},{"subitem_subject":"LPWA","subitem_subject_scheme":"Other"},{"subitem_subject":"LoRa","subitem_subject_scheme":"Other"},{"subitem_subject":"送信制御","subitem_subject_scheme":"Other"},{"subitem_subject":"Data Collection for Running Cars","subitem_subject_scheme":"Other"},{"subitem_subject":"Transmission Control","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal 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