{"created":"2023-06-20T15:03:54.153381+00:00","id":33101,"links":{},"metadata":{"_buckets":{"deposit":"f7c46c9c-b4e0-4f35-9935-3b20fccd0d01"},"_deposit":{"created_by":1,"id":"33101","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"33101"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00033101","sets":["1887:1890","1896:1898:1899:1912"]},"author_link":["414260","414251","414255","414253","414257","414259","414256","414254","414252","414258"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Fault-Tolerance Experiments of the \"Hiten\" Onboard Computer"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1991-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"10","bibliographicPageStart":"1","bibliographicVolumeNumber":"28","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告. 特集: 宇宙観測研究報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"1990年1月24日に打ち上げられた「ひてん」OBC(搭載コンピュータ)を用いたフォールトトレランス実験の概要及び結果について報告する。本実験は, (1)人為的に発生させた誤りへのシステムの対応, (2)軌道上での稼働状況を見るものである。人為的に発生させた誤りに対してはシステムは設計仕様通り動作することを確認した。軌道上での稼働状況監視については, 誤り発生を記録する機能を打ち上げ後にOBCへのリモートローディングにより追加した。この機能により7月5日14 : 16(UT)から8月3日10 : 05(UT)の28.86日間に, RAMでSEUによって8回の1ビット誤りが観測された。このうち7月26日02 : 09 : 14(UT)にCell Cで発生したSEUは, 7月25日22 : 00∿7月26日01 : 51(UT)に発生した重要度2Nの太陽フレアの影響と見られ, 他のSEUは太陽フレアとの相関は認められず, 銀河宇宙線に由来するものと考えられる。","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In this paper, the authors report the results of experiments for the verification of fault-tolerance using an onboard computer which was loaded on \"Hiten\" launched on Jan. 24 1990. The experiment aims at observing (1) System behaviour in response to intentionally introduced faults, (2) SEU in space. Tolerance against intentional faults was verified to satisfy the requirements. The function to record faults occurence was added after the launch in order to collect the field data. Eight 1-bit errors in RAM due to SEU were observed from 14 : 16 5th Jul. to 10 : 05 3rd Aug. 1990 (UT). The SEU at 02 : 09 : 14 on 26th Jul. might be caused by the solar flare of importance 2N from 22 : 00 on 25th Jul. to 01 : 51 on 26th Jul. Other SEU's did not have any correlation with solar flare occurances, and were probably caused by galactic cosmic-rays.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0166975000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0285-9920","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00354485","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"(株)日立製作所"},{"subitem_text_value":"(株)日立製作所"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"高野, 忠"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山田, 隆弘"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"周東, 晃四郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金川, 信康"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田中, 俊之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TAKANO, TADASHI","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YAMADA, TAKAHIRO","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SHUTOH, KOHSHIROH","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KANEKAWA, NOBUYASU","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TANAKA, TOSHIYUKI","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":"2020-01-24"}],"displaytype":"detail","filename":"SA0166975.pdf","filesize":[{"value":"553.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0166975.pdf","url":"https://jaxa.repo.nii.ac.jp/record/33101/files/SA0166975.pdf"},"version_id":"43c6e468-d446-4e0f-9bff-b9d39c862b85"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"フォールトトレランス","subitem_subject_scheme":"Other"},{"subitem_subject":"シングルイベントアップセット","subitem_subject_scheme":"Other"},{"subitem_subject":"宇宙機搭載用コンピュータ","subitem_subject_scheme":"Other"},{"subitem_subject":"Fault-Tolerance","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Single Event Upset","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Onboard Computer","subitem_subject_language":"en","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"「ひてん」OBC のフォールトトレランス実験","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"「ひてん」OBC のフォールトトレランス実験"}]},"item_type_id":"9","owner":"1","path":["1890","1912"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"33101","relation_version_is_last":true,"title":["「ひてん」OBC のフォールトトレランス実験"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:15:38.675398+00:00"}