Method and system for transmitting energy of sensor network by using body surface channel

Abstract

The invention discloses a method and a system for transmitting energy of a sensor network by using a body surface channel. The method comprises the following steps of (1) placing a passive sensor without batteries on a person to be measured, placing an electrode of the passive sensor on the body surface of the person to be measured or in the body of the person to be measured, placing a sensor controller with a battery and an electrode on the person to be measured, and placing the electrode controlled by the sensor on the body surface of the person to be measured; (2) transmitting signals to the sensor controller by using a remote wireless control end and starting the sensor controller; (3) transmitting carrier energy to the passive sensor by using the sensor controller through the electrode, which is adhered to the body surface of the person to be measured, of the sensor controller; (4) transmitting the carrier energy to the electrode of the passive sensor through the body surface channel of the person to be measured; and (5) converting the carrier energy into working voltage by using the passive sensor so as to provide energy for the passive sensor. The method and the system for transmitting the energy of the sensor network by using the body surface channel has the advantages of high transmitting efficiency, high convenience and safety, low cost, wide application range and the like.

Description

technical field [0001] The invention relates to a method and system for energy transmission of a sensor network using a body surface channel, which can be applied to a sensor network of animals including humans or a wearable medical monitoring system. The method and device for transmitting the energy emitted by the machine and collecting the energy at the terminal. Background technique [0002] Sensor networks as well as wearable medical monitoring systems have been an important topic in the research of medical electronics applications due to their important roles in collecting health data, disease prediction and early diagnosis of animals including humans. Based on low-cost, low-power wireless transmission technology and system solutions, it is helpful for patients to collect the basic vital parameters of the body in real time in daily work and life, and improve efficiency by reducing face-to-face consultation time between doctors and patients, and alleviate the problem of ...

AI Technical Summary

Problems solved by technology

The existence of chemical batteries will have several disadvantages: 1. Increase the weight and volume of a single sensor; 2. Reduce reliability and limit its life; 3. Increase device cost

[0005] The research group of Professor Benton Calhoun has done ultra-low power human body sensor network (Fan Zhang, Brian Otis, Benton Calhoun, "A Batteryless19μW MICS / ISM-Band Energy Harvesting Body Area Sensor Node SoC", ISSCC2012, SESSION17), through The form of energy provided by far-field emission realizes the passivity of node sensors, but the large path attenuation makes the energy of the entire sensor controlled at the microwatt level, which limits the realization of complex functions of the sensor

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