{"created":"2023-07-25T10:25:23.556273+00:00","id":5714,"links":{},"metadata":{"_buckets":{"deposit":"d135a23f-da56-4bf3-befa-3eba0fe830a0"},"_deposit":{"created_by":3,"id":"5714","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"5714"},"status":"published"},"_oai":{"id":"oai:air.repo.nii.ac.jp:00005714","sets":["1194:1195:1196:1453"]},"author_link":["16038"],"item_10006_biblio_info_34":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-03-22","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{}]}]},"item_10006_date_granted_41":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2022-03-22"}]},"item_10006_degree_grantor_40":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"秋田大学"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"11401","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_10006_degree_name_39":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士（工学）"}]},"item_10006_description_27":{"attribute_name":"内容記述（抄録）","attribute_value_mlt":[{"subitem_description":"As modern society becomes more sophisticated, the consumption of metal resources has become essential. There is a worldwide need for technologies to safely and efficiently mine metal resources. In addition, as the deposits to be mined are becoming deeper and lower grade year by year, there is an urgent need to increase minable reserves through technological innovation. Mining science is a discipline and technological system that integrates geology, rock mechanics, civil engineering, disaster prevention engineering, and mechanical engineering, which has developed in its own unique way. On the other hand, ICT (artificial intelligence, big data, data mining, etc.), has shown remarkable development. In the future, smart mining through ICT applications in mining science is expected to lead resource development.\nUnderground mines are generally located deep underground, mining companies operate under hazards such as poor lighting, confined spaces, rockfall, poor ventilation, wetness, limited communication, and structural complexity. In this context, safety and productivity in underground operations are of primary concern to companies. To solve these problems, various monitoring methods have been proposed to understand the underground environment. By installing a number of sensors in underground mines and acquiring measurement factors such as temperature, humidity, and gas concentration, it is possible to monitor the underground environment.\nFor this reason, this study develops an underground mine monitoring system to improve productivity and safety in mining operations. The underground mine monitoring system proposed in this study is divided into two parts: the sensing part, which is a differential measurement of in-situ stress and strain, and the data transmission part, which uses ad hoc communication. Multiple sensor units are installed in the mine, and the accumulated data is collected by ad hoc communication when a miner’s smartphone approaches communication area. Next, the data transfer range is pseudo-expanded by passing data through the movements of the miners. Finally, data is transmitted to an office with a communication infrastructure by either miner or going above ground. The data sent to the office on the ground can be checked and edited anywhere in the world via the cloud. In the sensing part, the developed sensor unit is buried in a blank hole after stress release to determine the difference in stress applied from the bedrock from the strain gauge values. In this case, it is necessary to detect the orientation of the sensor unit in order to estimate how much stress is applied and from which direction.\nIn the communication part, among WSNs (Wireless Sensor Networks), which are scalable and suitable for underground mines, pseudo communication range expansion by miner’s movement, Wi-Fi Ad Hoc communication (Wi-Fi Ad Hoc and Wi-Fi Direct) and communication obstacles can be avoided. Focusing on power line communications, we implemented and verified an ad hoc wireless communication system by testing communications from a data logger to a smartphone held by a miner. Based on the results obtained from each research item, the combination of sensor units and ad hoc communication is expected to make it possible to identify signs of rock deformation at a lower cost than previously thought possible, and to dramatically improve safety in the mine.","subitem_description_type":"Other"}]},"item_10006_dissertation_number_42":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第1411号"}]},"item_10006_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20569/00006027","subitem_identifier_reg_type":"JaLC"}]},"item_10006_publisher_28":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"秋田大学"}]},"item_10006_version_type_35":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"池田, 啓"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-06-16"}],"displaytype":"detail","filename":"shihakuyoushikou1411.pdf","filesize":[{"value":"193.4 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"内容要旨及び審査結果要旨","url":"https://air.repo.nii.ac.jp/record/5714/files/shihakuyoushikou1411.pdf"},"version_id":"11a85018-817a-4e80-9d91-5b80cd4cffaa"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-06-16"}],"displaytype":"detail","filename":"shihakukou1411.pdf","filesize":[{"value":"40.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文","url":"https://air.repo.nii.ac.jp/record/5714/files/shihakukou1411.pdf"},"version_id":"8f9f97c4-6985-42d8-8092-3b21325f5e37"}]},"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":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"鉱山操業における生産性と安全性向上のための坑内掘鉱山内モニタリングシステムに関する研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"鉱山操業における生産性と安全性向上のための坑内掘鉱山内モニタリングシステムに関する研究"}]},"item_type_id":"10006","owner":"3","path":["1453"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-06-16"},"publish_date":"2022-06-16","publish_status":"0","recid":"5714","relation_version_is_last":true,"title":["鉱山操業における生産性と安全性向上のための坑内掘鉱山内モニタリングシステムに関する研究"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-25T10:42:57.214459+00:00"}