A study on changes in physiological response of workers during the skill transfer process

2022 Fiscal Year Final Research Report

• Project/Area Number: 20H02392
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 25010:Social systems engineering-related
• Research Institution: Keio University
• Principal Investigator: SHIDA KEISUKE 慶應義塾大学, 理工学部(矢上), 准教授 (40365028)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 技能伝承 / 脳活性 / 作業習熟 / 認知科学

Outline of Final Research Achievements

This study attempted to evaluate the level of skill acquisition of workers based on changes in physiological response characteristics using functional Near Infrared Spectroscopy (fNIRS), which measures brain activity states. As a result, it was possible to assess the qualitative aspects of skill acquisition, such as task accuracy, based on the brain's activity states. Furthermore, to promote skill acquisition, the timing of providing verbal cues to the workers was evaluated, and it was found that providing cues immediately after a task error occurred was effective. Additionally, in order to assess the level of skill acquisition of workers, a task analysis system utilizing deep learning was developed, and its effectiveness was confirmed in an actual factory.

Free Research Field

経営工学

Academic Significance and Societal Importance of the Research Achievements

作業者の習熟程度を評価する指標として、一般に、同一作業の繰り返しに伴い減少する作業時間が用いられる。しかし、実際の製造現場では、作業時間が十分に低減したのちも、作業ミスによって製品品質に影響を及ぼす問題が生じている。そのため、習熟程度を評価する方法として作業時間を用いるだけでは、十分であるとは言えない。本研究の作業習熟に関する研究は、ものづくりの品質維持向上に向けた基礎的な研究と言った社会的意義がある。