Human body communication between fingertip and wrist using stationary and wearable devices

Author

Muramatsu, D. ; Koshiji, F. ; Koshiji, K. ; Sasaki, K.

Author_Institution

Grad. Sch. of Frontier Sci., Univ. of Tokyo, Kashiwa, Japan

fYear

2014

fDate

7-10 Oct. 2014

Firstpage

18

Lastpage

19

Abstract

Human body communication (HBC) is expected to become a unique man-machine interface because the transmission path is established only when the user touches the target device. In this study, HBC between a stationary device and a wearable device worn on the wrist was investigated. Transmission characteristics between the devices and electric field around the human body model were calculated by electromagnetic field analysis. The transmission characteristics from the stationary device to the wearable device were about -56 dB, which suggests a stable bidirectional transmission. The S₂₁ decreased more than 30 dB when stationary signal electrode and fingertip were 5 cm apart, indicating that contact is necessary for transmission.

Keywords

body area networks; electromagnetic fields; man-machine systems; HBC; distance 5 cm; electric field; electromagnetic field analysis; fingertip; human body communication; human body model; man-machine interface; stationary device; stationary signal electrode; wearable device; Analytical models; Biological system modeling; Educational institutions; Electric fields; Electrodes; Integrated circuit modeling; Wrist; electromagnetic field analysis; human body communication; stationary device; transmission characteristics; wearable;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (GCCE), 2014 IEEE 3rd Global Conference on

Conference_Location

Tokyo

Type

conf

DOI

10.1109/GCCE.2014.7031122

Filename

7031122