{"updated":"2025-01-19T15:04:00.645830+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00208991","sets":["581:10433:10434"]},"path":["10434"],"owner":"44499","recid":"208991","title":["気圧センサを用いたステップ認識手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-01-15"},"_buckets":{"deposit":"b94bdee3-bc31-4005-802e-670c43524b9d"},"_deposit":{"id":"208991","pid":{"type":"depid","value":"208991","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"気圧センサを用いたステップ認識手法","author_link":["525724","525726","525725","525721","525722","525723"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"気圧センサを用いたステップ認識手法"},{"subitem_title":"Step Recognition Method Using Barometer","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[特集：5G時代の社会を創るモバイル・高度交通システム（特選論文）] ステップ認識，PDR，スマートフォン，気圧センサ，活動量","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2021-01-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"愛知工業大学"},{"subitem_text_value":"愛知工業大学"},{"subitem_text_value":"愛知工業大学"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Aichi Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Aichi Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Aichi Institute of Technology","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/208991/files/IPSJ-JNL6201028.pdf","label":"IPSJ-JNL6201028.pdf"},"date":[{"dateType":"Available","dateValue":"2023-01-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL6201028.pdf","filesize":[{"value":"5.4 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"4356acaf-cbc0-4752-a6ff-9a545eb9ff52","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"梶, 克彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"磯村, 奎介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"高井, 飛翔"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Katsuhiko, Kaji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Keisuke, Isomura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tsubasa, Takai","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"歩行者のステップ認識は，屋内位置推定の一手法である歩行者自立航法（PDR）の構成要素として利用されているほか，歩数計・活動量計といったヘルスケアアプリケーションの根幹を担っている．ステップ認識には，歩行の際にセンサ信号が顕著に周期的な変化を示す加速度センサを用いるのが一般的である．我々はその代替として，角速度や磁気センサによって腰回転をとらえてステップ認識を行う手法を提案してきた．本稿では気圧センサを利用したステップの認識を行う手法について提案する．我々はスマートフォンを手持ちして意識的に腕振りをした場合，密閉型の腰巻きケースにスマートフォンを装着した場合，ズボンのポケットに装着した場合などについて，気圧センサの値が歩行にともなって周期的に変化する現象を発見した．この周期的な変化を，デジタルフィルタ・極値発見・閾値処理といった単純なアルゴリズムでとらえてステップ認識を行う．評価実験によって，推定誤差7.5%程度のステップ推定が可能であると確認できた．このような代替センサによるセンシングは，デバイスやシステム構成時に必要となるセンサ数の削減による省電力化，デバイス小型化，コンピュータリソースの開放につながる．たとえば活動量計は歩数や階段昇降といった情報から計算できるため，従来の活動量計はステップを加速度センサから取得し階段昇降は気圧センサから取得するが，本研究の成果を導入すれば，気圧センサのみによる活動量計の実現が期待できる．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Pedestrian step recognition is used as a component of pedestrian dead-reckoning, which is a method of indoor positioning, and also plays a central role in healthcare applications such as pedometers and activity meters. For step recognition, it is common to use an accelerometer that shows a noticeable periodic change in sensor signal during walking. As an alternative, we have proposed a method for step recognition by detecting waist rotation with an gyroscope or magnetic sensor. In this paper, we propose a method for step recognition using a barometer. When we consciously swing our arms while holding a smartphone, when we wear a smartphone in a closed waist-wrapping case, or when we wear it in a pants pocket, the value of the barometer changes periodically with walking. Step recognition is performed by capturing periodic change with a simple algorithm such as digital filter, finding local maximum/minimum, and thresholding. Through evaluation experiments, it was confirmed that step estimation with an estimation error of about 7.5 Sensing with such alternative sensors leads to power saving, device miniaturization, and computer resource release by reducing the number of sensors required when configuring devices and systems. In general, since an activity meter can be calculated from information such as the number of steps and stair climbing, a conventional activity meter acquires steps from an accelerometer and stair climbing from an barometer. On the other hand, if we introduce the results of this research, it is possible to realize an activity meter using only barometer.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"245","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"235","bibliographicIssueDates":{"bibliographicIssueDate":"2021-01-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"62"}]},"relation_version_is_last":true,"item_2_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20729/00208889","subitem_identifier_reg_type":"JaLC"}]},"weko_creator_id":"44499"},"created":"2025-01-19T01:10:20.009721+00:00","id":208991,"links":{}}