Combined Electrode for Galvanic/Capacitive Coupled Human Body Communication

Abstract

The invention relates to a composite electrode suitable for current / capacitance coupling type human body communication, and belongs to the technical field of human body communication. The invention aims to provide a composite electrode suitable for current / capacitance coupling type human body communication. The composite electrode can realize quick and free switching of current / capacitance coupling signal transmission modes. A current / capacitance coupling signal electrode, a current coupling ground electrode, a capacitance coupling ground electrode and the like are arranged in the composite electrode, the signal electrode is shared by two modes, and the two modes are switched through an external analog switch. The composite electrode is variable in mechanical structure, and the distance between the current coupling mode signal connection electrode and the ground electrode and the area of the capacitance coupling mode ground electrode are adjusted through the sliding guide rail device and the threaded column.

Description

technical field [0001] The invention relates to a composite electrode suitable for current / capacitance coupling type human body communication, which belongs to the technical field of human body communication. Background technique [0002] Intra-Body Communication (IBC) is a non-radio frequency wireless communication technology, which is a data communication technology that uses the human body as the signal transmission medium. , the technology has the advantages of low power consumption, anti-interference, high speed and so on. In terms of safety, human body communication uses weak electrical signal transmission far below the safety standards of the International Telecommunication Union (International Telecommunication Union), and its safety has been recognized by the Institute of Electrical and Electronics Engineers (IEEE, Institute of Electrical and Electronics Engineers). In the IEEE 802.15.6 standard for Personal Area Network (PAN, Personal Area Network) officially appr...

AI Technical Summary

Problems solved by technology

[0006] Due to the above reasons, the existing human body communication electrodes cannot meet the requirements of short-term and low-cost rapid measurement under different application and research conditions.

At the same time, changing the electrodes continuously will change the impedance between the electrodes and the skin, which is not conducive to obtaining accurate data in research and measurement experiments, and also leads to instability of the human body communication system

System optimization for in-body communication systems adds difficulty

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