Research on Body Sensor Network Based on the Capacitive Coupling Intra-Body Communication Using a Mach-Zehnder Electro-Optical Sensor

摘要

The intra-body communication (IBC) has the characteristics of high information security, low energy consumption, and high data transmission rate compared with other short distance wireless communications, and it is believed that IBC technology will offer significant advantages in body sensor network (BSN). In this paper, we propose a body sensor network based on the capacitive coupling intra-body communication using a Mach-Zehnder electro-optical (EO) sensor. In order to verify the advantage of the frequency response of the signal transmission based on the human body medium by using the proposed system, the in-vivo measurements have been implemented under different signal transmission paths. Furthermore, the experiment device of body sensor network based on the proposed method is established, and many-to-one signal transmission is realized by using the technology of FDMA (Frequency Division Multiple Access). Finally, the measurement results are analyzed. Results show that the proposed signal transmission system will help to achieve reliable, lower power consumption and high speed signal transmission of body sensor network.