Self-powered triboelectric nanogenerator wireless sensor emission system with identity information

Abstract

The invention discloses a self-powered friction nanogenerator wireless sensing and transmitting system carrying identity information. A wireless sensing and transmitting system of an existing frictionnanogenerator needs to be charged by an external active circuit and is not a real self-powered sensing and transmitting system. The self-powered friction nanogenerator wireless sensing and transmitting system comprises a friction nanogenerator with a mechanical switch structure and a radio frequency identification signal generating and transmitting circuit; and the friction nanogenerator with themechanical switch structure generates a sensing signal, and the radio frequency identification signal generating and transmitting circuit transmits self-contained radio frequency identification information without an external power supply. The self-powered friction nanogenerator wireless sensing and transmitting system has the advantages that amplitude of a wirelessly received laser signal is changed when an external to-be-changed parameter is changed, but resonant frequency of the wirelessly received laser signal is not changed, the radio frequency identification information is stable, and misjudgment can not be produced.

Description

technical field [0001] The invention belongs to the technical field of friction nanogenerator sensors, and in particular relates to a self-powered friction nanogenerator wireless sensor transmitting system with identity information. Background technique [0002] At present, sensor network technology has made great progress and is used in various industries; sensor network is also the foundation and core of the Internet of Things. The number of sensors used in sensor networks and the Internet of Things is huge, and the connections to control and information processing systems and devices are complex and cumbersome; powering these huge numbers of independent sensors is an urgent problem to be solved. Due to its high cost and the need for a large amount of manpower to maintain, traditional battery technology has been difficult to meet the application of huge sensors. One of the most promising solutions to the problem of powering sensor networks is the use of self-powered devic...

AI Technical Summary

Problems solved by technology

[0005] In addition, there are a large number of access sensors in the sensor network. Since the output signal of TENG does not carry enough information, it is impossible to distinguish the source of different TENG sensor signals in the sensor network, which limits the application of TENG in sensor networks.

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