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- 저자 : Sousuke Nakamura (검색결과 2 건)
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Electric-field Resonance Coupling between Human and Transmitter for Human Position Estimation System
Sousuke Nakamura,Shimon Ajisaka,Kiyoaki Takiguchi,Akira Hirose,Hideki Hashimoto 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
In this paper, a novel human position estimation system using electric-field resonance coupling is proposed. There are various advantages of using electric-field for human position estimation system. The system is robust to illumination change, body-worn tags are not required and sensors could be hidden since electric-field can path through an insulator. Tags are not required because the system estimates the position by measuring the electric field transmitted along the human body which acts as an electric-field coupler. Moreover, the proposed system has wider sensing range and higher expandability to position estimation of multiple humans compared to the current system. Unlike the current system which only measures the electric-field coupled between human and transmitter, the proposed system measures the electric-field amplified by the resonance occurring inside the human (equivalent to giant antenna) to achieve wider sensing range. Meanwhile, the proposed system is also designed carefully to maintain the expandability to multiple humans position estimation. Based on the simulation results, it is verified that the sensing range could be up to 50[cm] with less than 5[cm] error. In the future, the proposed system could be a powerful alternative for the current system.
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Human Body Position Estimation System using Electric Field Resonance Coupling
Shimon Ajisaka,Sousuke Nakamura,Kiyoaki Takiguchi,Akira Hirose,Hideki Hashimoto 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
Today in terms of security and caring, more various and robust information system about human existence in indoor environment (ex. rooms, buildings) are needed. Especially, human position estimation system in such kinds of spaces is basic. Generally, such kind of systems use radiowave devices, cameras and ultrasonic devices to estimate human position. But these kind of systems have some weakpoint when the system tries to estimate position. A purpose of this paper is to propose novel human position estimating system using electric field resonance coupling and validate the evidence for possibility of human position sensing system using resonance coupling by simulation experiment. In simulation experiment results using Gabriel"s human phantom, relation between electric field strength and distance between sensor and human are confirmed. In conclusion, feasibility of the proposed human position estimation system is shown.
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