The University of Shiga Prefecture · Faculty of Engineering, Department of Mechanical Systems Engineering · 准教授

Research keywordsmanual lathe training・motion capture・mixed reality training・remanufacturing planning・life-cycle simulation・arc welding training・experiential simulation

This is a public-data preview. Personalized fit, contact angles, and saved workflows require sign-in.

• バーチャルリアリティを用いた助産師の危険予知教育システム2024 · 担当区分： 筆頭著者 記述言語： 英語 DOI： 10.24462/jnse.11.0_76
• Production Planning of Remanufactured Products with Inventory by Life-Cycle Simulation2019 · 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－2019 · 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－2018 · 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.

• 看取りケアに必要な臨床推論力を育む仮想空間コミュニケーション教材の開発と評価2021 · 配分額： 4290000円 （ 直接経費： 1745000円 、 間接経費： 2545000円 ）
• 障がいを持つ人に対応する身体的動作を伴う機械製作実習を代替するバーチャルシステム2021 · 配分額： 6240000円 （ 直接経費： 4600000円 、 間接経費： 1640000円 ）
• モーションキャプチャを利用した実践的な機械加工訓練シミュレータの研究2014 · 配分額： 5070000円 （ 直接経費： 3900000円 、 間接経費： 1170000円 ）
• 作業中の動作と力に基づく歯石除去技能の評価システム2014 · 配分額： 500000円 （ 直接経費： 500000円 ）

• Official profile