Preparation method of compression sensing fabric with wireless signal transmission function

A compression sensing and wireless signal technology, applied in fabrics, antenna supports/mounting devices, textiles, etc., to achieve stable performance, wide application prospects, and low dielectric constant

Inactive Publication Date: 2017-12-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of sensor overcomes the shortcomings of early sensors that cannot be folded and cannot be cleaned, but this structure still embeds single-function sensing elements and sending and receiving signal elements into textiles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of compression sensing fabric with wireless signal transmission function
  • Preparation method of compression sensing fabric with wireless signal transmission function
  • Preparation method of compression sensing fabric with wireless signal transmission function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Combine figure 1 , The preparation of the polyester spacer fabric antenna compression sensing fabric, the specific method is as follows:

[0037] (1) Use ordinary polyester fiber as warp and weft yarn with a fineness of 200 tex; use copper wire as a conductive yarn with a diameter of 0.6 mm; use polyester monofilament as a spacer yarn with a fineness of 20 tex.

[0038] (2) The working frequency of the designed antenna is 2.4GHz, the design thickness of the antenna is 5mm, the dielectric constant of the prepared three-dimensional spaced polyester fabric is 2, according to the microstrip antenna design formula (see Chapter 6 of "Antenna Theory and Technology", Zhong Edited in time), the microstrip antenna size parameters can be calculated. Such as figure 2 As shown, where w and L are the width and length of the radiating element, respectively, WG and LG are the width and length of the finished microstrip antenna, FL is the length of the microstrip line, and FD is the width o...

Embodiment 2

[0042] The preparation method of aramid spacer fabric antenna compression sensing fabric is as follows:

[0043] (1) Choose DuPont Kevlar 129 aramid fiber as warp and weft yarn with fineness of 167tex; choose nylon silver-plated yarn as conductive yarn with fineness of 100tex; choose polyester monofilament as spacer yarn with fineness of 20tex .

[0044] (2) The working frequency of the designed antenna is 1.5GHz, the design thickness of the antenna is 5mm, and the dielectric constant of the prepared three-dimensional spaced aramid fabric is 1.8. According to the microstrip antenna design formula, the size parameters of the microstrip antenna can be calculated. Where W and L are the width and length of the radiating element, respectively, WG and LG are the width and length of the finished microstrip antenna, FL is the length of the microstrip line, and FD is the width of the microstrip line.

[0045] (3) Weaving single radiator element microstrip antenna preform. The design basic s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a method for preparing a compressed sensing fabric with a wireless signal transmission function. The method comprises the steps: firstly, selecting a kind of elastomeric yarns, weaving the elastomeric yarns into a three-dimensional hollow spaced fabric as a dielectric substrate of antennae, and testing and calculating dielectric constant and dielectric loss of the fabric; calculating basic size of each radiating element of the antennae according to calculated results and operating frequency required by the antennae, and weaving the radiating elements of the antennae, feeder lines, a dielectric substrate and a ground plate from a kind of conductive yarns and elastomeric yarns together; finally, weaving all parts into a three-dimensional spaced fabric-antenna structure, which is integrated, is obvious in frequency change during compressive deformation and has linear rules, through vertical binding yarns. According to the method, a compression-sensitive textile structure and antenna elements are combined, so that the fabric which simultaneously has the wireless signal transmission function and the compressed sensing function is achieved; the fabric is good in structural integrity, and the deformation under the action of an applied force is stable and uniform and can be predicted; the product is relatively low in cost and stable in performance and is beneficial to popularization.

Description

Technical field [0001] The invention relates to a preparation method of a compression sensing fabric with a wireless signal transmission function, and belongs to the technical field of functional textiles and intelligent textiles. Background technique [0002] A sensor (English name: transducer / sensor) is a detection device that can sense the information being measured, and can transform the sensed information into electrical signals or other required forms of information output according to a certain rule to meet the information Requirements for transmission, processing, storage, display, recording and control. [0003] With the advancement of society and the development of science and technology, as a textile closely related to human beings, textiles not only have functions of keeping out the cold, keeping warm and visually beautiful, but people have higher requirements for the functionality and intelligence of textiles. As a kind of smart textile, electronic smart textile is a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D25/00D03D1/00H01Q1/22
CPCD03D1/0088D03D25/005H01Q1/22
Inventor 许福军王义斌朱鸿飞谢惺
Owner DONGHUA UNIV
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