Flexible antenna sensor for wearable device

A technology for flexible antennas and wearable devices, applied to antennas, sensors, and flexible antennas suitable for movable objects, can solve the problems of low sensitivity, low reliability, and complex structure of wearable sensors, and achieve easy promotion, The effect of stability, simplicity, compactness, and high sensitivity

Inactive Publication Date: 2020-08-14
TIANJIN UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low sensitivity, complex structure and low reliability of existing wearable sensors, and to provide a flexible antenna sensor for wearable devices that can realize signal acquisition and transmission at the same time

Method used

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  • Flexible antenna sensor for wearable device
  • Flexible antenna sensor for wearable device

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Embodiment Construction

[0038] In order to make the purpose of the present invention, technical solutions and advantages clearer, the present invention will be described in further detail below in conjunction with accompanying drawing, and introduce a preferred embodiment of the present invention:

[0039] figure 1 A schematic diagram of the structure of the wearable flexible antenna sensor of the present invention is shown. The flexible antenna sensor of the present invention is divided into upper and lower layers, which are the coplanar waveguide antenna 1 of the upper layer and the split resonant ring array 2 of the lower layer, and the coplanar waveguide antenna 1 is located at the center directly above the split resonant ring array 2, between The interval is 5mm. In order to maintain a stable distance between the coplanar waveguide antenna 1 and the aperture resonant array, foam polystyrene is added in the middle for maintenance. In order to minimize the overall cross-sectional size of the sen...

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Abstract

The invention discloses a flexible antenna sensor for wearable device and belongs to the field of wearable sensors. The sensor comprises an upper-layer coplanar waveguide antenna (1) and a lower-layersplit-ring resonator array (2). Sweat components of a user and pressure borne by knee joints can be measured and output in real time, and the sensor is suitable for a wearable health monitoring and anti-falling system. According to the invention, the coplanar waveguide antenna and the split-ring resonator array are combined, the antenna sensor with signal detection and transmission functions is developed, and sweat component change and joint pressure are converted into offset of resonant frequency. According to the invention, the use of a transmission line is avoided, the stability of a sensor interface is enhanced, the service life of the sensor is prolonged, and the sensor has the advantages of high sensitivity and good transmission efficiency, and has a good popularization prospect.

Description

technical field [0001] The invention belongs to the field of wearable sensors, in particular to a novel wearable antenna sensor for measuring sweat and joint pressure and a method thereof. Background technique [0002] Wearable sensors can continuously monitor the health status of individuals and are essential to realize health monitoring systems. However, simultaneously achieving high compressibility and high sensitivity is still a great challenge for conventional flexible sensors. In addition, traditional flexible sensors only have the function of collecting signals, and the transmission of signals needs to be connected to other wired or wireless circuits. This not only limits the number of sensors that can be embedded in the flexible film, but also increases the complexity of the system. and weight. Furthermore, the sensor interface is usually the most fragile component, which can easily introduce mechanical drift, noise, and vibration in the measurement, compromising t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08H01Q1/27H01Q1/38H01Q1/50A61B5/0205A61B5/22A61B5/145
CPCH01Q1/085H01Q1/273H01Q1/38H01Q1/50A61B5/0205A61B5/02A61B5/4528A61B5/22A61B5/14517A61B5/6802
Inventor 轩秀巍花宇杰龚超赵婉伊李琳
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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