研究者詳細 - 橋本　宣慶

論文 - 橋本　宣慶

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橋本宣慶，岩谷久美子

看護理工学会誌 11 76 - 89 2024年1月

Training Simulator for Manual Lathe Operation Using Motion Capture – Addition of Teaching Function and Evaluation of Training Effectiveness – 査読国際誌

Nobuyoshi Hashimoto

Journal of Robotics and Mechatronics 35 ( 1 ) 145 - 152 2023年2月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Fuji Technology Press Ltd. 参加形態：共同（主担当）

Numerous training simulators have been developed using virtual reality (VR) owing to their various advantages. Systems for training machine operations with physical movements face differences in the operational feel between actual and virtual machines. Moreover, virtual training is problematic in safety education because trainees in safe virtual environments can exhibit unsafe behavior in reality. To solve these problems, a previous study developed a virtual reality (VR) system to train a lathe operation with mixed reality using a motion capture system. This study included a function to teach the procedure and safety precautions for straight turning operations using a lathe. To evaluate the training effectiveness of this system, an experiment was conducted to compare learning using a video. Testees were divided into a simulator group, who learned with the system, and a video group, who learned with the video material. Work on the actual lathe by each testee after learning, was evaluated. Consequently, the actual work by the testees who used this system had fewer errors and shorter standstill times in which they attempted to recollect the next phase task. Although the number of trainees was small, this relationship had a statistical advantage. In the actual work, all the testees in the video group entered the danger area; however, only half of the testees in the simulator group entered the danger area. Therefore, a trainee using a simulator can remember the work process more reliably and accurately and perform it safely. Moreover, trainees who have undergone training several times should be able to perform actual work without making operational errors or engaging in unsafe behaviors.

DOI： 10.20965/jrm.2023.p0145

Production Planning of Remanufactured Products with Inventory by Life-Cycle Simulation 査読国際誌

Susumu Okumura, Nobuyoshi Hashimoto, Taichi Fujita

Proceedings of EcoDesign 2019 International Symposium 624 - 631 2019年11月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Manufacturers can reduce environmental impact and costs by introducing remanufacturing. In remanufacturing, inventory control of remanufactured and newly manufactured products should be considered for production planning. It is indispensable for predicting the demand quantity of products and the collecting quantity of used products to minimize the total cost incurred by remanufacturing and newly manufacturing. The prediction varies depending on the product characteristics and the time elapsed since shipment. In this paper, we study a remanufacturing system minimizing the total cost by a life-cycle simulation method. In the flow of products, there are two types of inventory: one is a remanufactured and newly manufactured product inventory before shipment to the market, and the other is a collected product inventory for used products. Depending on the time elapsed since launch, products pass through an introductory stage, a growth stage, a maturity stage, and a decline stage in a usual manner. We analyze the impact on the total cost of the prediction accuracy of the product demand and the collected used products to each stage. When the ratio of an ordering cost for newly manufactured products to an inventory holding cost for the finished products has a significant value, or as the life-cycle stage is approaching the decline stage, the predicting accuracy of collection of the used products and the product demand has a high impact on the total cost.

Training Simulator for Manual Lathe Operation using Motion Capture－Practical Training by Mixed Reality and Warning Function for Dangerous Behavior－査読

Nobuyoshi HASHIMOTO

Journal of the Japan Society for Precision Engineering 85 ( 10 ) 927 - 932 2019年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Japan Society for Precision Engineering 参加形態：共同（主担当）

Training systems for manual machine tools using virtual reality have been developed for high safety and economy. Using these systems, a trainee can safely work on virtual machines to manipulate input interfaces modeled after devices in real-world machines. However, a trainee cannot completely learn how to use the target machine because the interface lacks all the necessary devices. Because safety is ensured even if the trainee performs dangerous actions, these virtual systems cannot teach safety measure. Therefore, after training with these systems, a trainee needs instructors when operating actual machines. This study describes a training system that does not require instructors. By training with the proposed system, a trainee can safely work on virtual machines as the input interface to manipulate the actual lathe. This system constantly monitors the position of all operating devices, handles and levers on the actual lathe, and the user's body parts (the head, both hands and upper body of the trainee) by motion capture. The behavior of the virtual lathe and the cutting of the virtual workpiece are simulated from the manipulated variables. This system can detect whether the trainee is in danger from the movement of his body parts.

Training System for Manual Lathe Operation without Instructors －Experiential Simulation and Trainee Monitoring by Motion Capture－査読

Nobuyoshi HASHIMOTO

Proceedings of the 17th International Conference on Precision Engineering 2018年11月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）参加形態：共同（主担当）

Training systems for manual machine tools using virtual reality have been developed for high safety and economy. Using these systems, a trainee can safely work on virtual machines to manipulate input interfaces modeled after devices on real-world machines. However, a trainee cannot completely learn how to use the target machine because the interface lacks all the necessary devices. Because safety is ensured even if the trainee performs dangerous actions, these systems cannot teach safety. Therefore, after training with these systems, a trainee needs instructors when operating actual machines. To this end, this study describes a training system that does not require instructors. By training with the system, a trainee can safely work on virtual machines as the input interface to manipulate the actual lathe. This system constantly monitors the position of all operating devices, handles, and levers on the actual lathe and the user's body parts—the head and both hands—of the trainee by motion capture. The behavior of the virtual lathe and the cutting of the virtual workpiece are simulated from the manipulated variables. This system can detect whether the trainee is in danger from the movement of his or her body parts.

仮想環境による手溶接作業の高効率技能訓練査読

梁馨，加藤秀雄，橋本宣慶，大川一也

精密工学会誌論文集 933 - 938 2014年10月

Simple Virtual Reality Skill Training System for Manual Arc Welding 査読

Xin Liang, Hideo Kato, Nobuyoshi Hashimoto, Kazuya Okawa

Journal of Robotics and Mechatronics 78 - 84 2014年2月

作業中の力に基づく歯石除去技能の評価・訓練システム査読

橋本宣慶，加藤秀雄，松井恭平

ヒューマンインタフェース学会論文誌 469 - 476 2013年12月

印象採得の手技の分析を目的とした測定装置の開発査読

橋本宣慶，桒原克彦，大沢聖子，多田充裕，伊藤孝訓

日本口腔診断学会雑誌 253 - 260 2013年10月

シミュレータによる旋盤の芯出し作業の訓練査読

橋本宣慶，加藤秀雄，青宿淳一，樋口静一，大川一也

精密工学会誌論文集 779 - 783 2013年8月

手溶接技能訓練のための簡易VRシステムと実作業との技能レベル比較による有効性の検討査読

梁馨，加藤秀雄，橋本宣慶，樋口静一，大川一也

精密工学会誌論文集 692 - 696 2013年7月

フライス盤操作シミュレータによる加工順序学習とハンドル操作技能訓練の効果査読

橋本宣慶，御簾納陽介，加藤秀雄

日本バーチャルリアリティ学会論文誌 559 - 565 2011年12月

実機を利用した汎用工作機械作業の複合現実感システム査読

橋本宣慶，御簾納陽介，加藤秀雄

精密工学会誌論文集 1175 - 1179 2011年12月

Evaluation of Training Effect of Tooth Scaling Simulator by Measurement of Operation Force 国際誌

Nobuyoshi Hashimoto，Hideo Kato， Kyohei Matsui

IEEE Virtual Reality 2010 273 - 274 2010年3月

Experimental identification of model parameters in welding simulator and its performance evaluation by veteran welders 国際誌

Nobuyoshi Hashimoto，Hideo Kato

Proc. 18th conf. on artificial reality and Telexistence 289 - 292 2008年12月

シミュレータによる歯石除去の訓練（正しいスケーリング動作の訓練）査読

橋本宣慶，加藤秀雄，松井恭平，石田洋子，飯島佑介

日本機械学会論文集（Ｃ編） 686 - 691 2008年3月

Training of Tooth Scaling by Simulator -Development of Simulator and Investigation of its Effectiveness- 査読国際誌

Nobuyoshi Hashimoto，Hideo Kato， Kyohei Matsui

Proc. 17th conf. on artificial reality and Telexistence 251 - 257 2007年12月

シミュレータによる歯石除去の訓練－シミュレータの構築と人工歯石除去による訓練効果の検討－査読

橋本宣慶，加藤秀雄，松井恭平，石田洋子，王亮

日本バーチャルリアリティ学会論文誌 453 - 458 2006年12月

複合現実感技術による手溶接訓練システム－溶接棒先端位置把握誤差の低減－査読

橋本宣慶，加藤秀雄，池原亮

精密工学会誌論文集 249 - 253 2006年2月

MR training system for manual arc welding using stereoscopic HMD and multi markers 査読国際誌

Nobuyoshi Hashimoto，Hideo Kato

Proc. 11th conf. on virtual system and multimedia 563 - 571 2005年10月

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