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Communication and sensing separated radio frequency sensor model construction method and radio frequency sensor

A technology of radio frequency sensors and construction methods, applied in the direction of instruments, special data processing applications, electrical digital data processing, etc.

Active Publication Date: 2019-08-02
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a radio frequency sensor model construction method and a radio frequency sensor that separates communication and sensing, which are used to solve the problem that the existing sensor tag antenna realizes sensing and communication functions at the same resonance frequency, and cannot achieve high sensitivity at the same time Technical issues with strong communication capabilities

Method used

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  • Communication and sensing separated radio frequency sensor model construction method and radio frequency sensor
  • Communication and sensing separated radio frequency sensor model construction method and radio frequency sensor
  • Communication and sensing separated radio frequency sensor model construction method and radio frequency sensor

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Embodiment Construction

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0040] For ease of understanding, see figure 1 An embodiment of a method for constructing a radio frequency sensor model that separates communication and sensing provided by the present application includes the following steps:

[0041] Step 101, constructing a first substrate model, a second substrate model, an open-loop resonator model, a U-shaped symmetrical re...

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Abstract

The invention discloses a communication and sensing separated radio frequency sensor model construction method and a radio frequency identification sensor. Metamaterial energy absorption characteristics of a bright and dark double-harmonic-oscillator coupling system formed by an open-loop resonator model and a U-shaped symmetrical resonator model are utilized, an electromagnetism-like induced transparency effect is generated. When cracks on a metal floor model surface are detected, two resonant frequencies used for sensing and communication are obtained. Sensing resonant frequency offsets generated by different crack depths are different. Therefore, the communication function and the sensing function can be separated, energy distribution of a sensing function and a communication function is balanced, and the two functions do not interfere each other. The structural size of the radio frequency sensor model is finely adjusted according to the resonant frequency obtained through simulation, so that the radio frequency sensor model achieves impedance matching at the resonant frequency, the radio frequency sensor model after impedance matching is completed is output, and the obtained radio frequency sensor has high communication capability while maintaining high sensing sensitivity.

Description

technical field [0001] The present application relates to the technical field of micro-radio frequency sensors, in particular to a radio frequency sensor model building method and a radio frequency sensor that separates communication and sensing. Background technique [0002] Many infrastructure and complex engineering structures, such as rails, pipelines, aircraft, high-rise buildings, and large-scale water conservancy projects, etc., have been subjected to aging materials, long-term exposure to extreme weather, and frequent stress, resulting in cracks on the surface of the materials, which are potentially harmful and may cause Serious safety accidents and huge economic losses. Therefore, crack detection during the life cycle of infrastructure and complex engineering structures is the key to ensure their safe and reliable operation. [0003] At present, the commonly used crack detection methods include magnetic particle, ultrasonic, infiltration, magnetic flux leakage and ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 黄楚钿黄贝张丙盛李瑶张俊王昆章国豪
Owner GUANGDONG UNIV OF TECH
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