Development of a method of detecting human presence in a building for supporting firefighting operations

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04532
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 25010:Social systems engineering-related
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: Kajihara Yasuhiro 東京都立大学, システムデザイン研究科, 教授 (70224409)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: レーダー / 防災活動 / 人物検知

Outline of Final Research Achievements

A method has been developed to pinpoint a location of human presence in a building from a location away from the building. The conventional radar techniques have not established an efficient method capable of separating waves reflected from human presence in a building from those from a number of household goods. The radar waves reflected from the walls and household goods in a building are different from those reflected from a human body in signal strength and amount of phase fluctuations. A focus on this has led to the development of new techniques capable of detecting a person behind a wall, who is invisible to the eye.

Free Research Field

経営工学

Academic Significance and Societal Importance of the Research Achievements

本研究を通して、建物から離れた場所から建物内の人物をレーダにより検知できる技術が開発された。社会的意義の観点からは、建物火災において逃げ遅れ者の有無および位置を建物の外からリアルタイムに検知することが可能となり、人命救助、消防隊員への的確な指示と安全確保に役立つことが挙げられる。学術的観点からは、レーダ反射波の信号強度と位相の変動量から壁背面人物を検知できる数理モデルを構築できることが実験的に確認されたことが挙げられる。