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Optical fiber sensing layer and its monitoring system

A technology of optical fiber sensing and optical fiber, which is applied in the direction of transmitting sensing components, application, and measuring force by using optical devices, and can solve the problems of inconsistent sensing resolution of the sensing layer, uneven sensing sensitivity, and blind areas of the optical fiber sensing layer.

Active Publication Date: 2019-07-05
HUIJIA HEALTH LIFE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an optical fiber sensing layer, aiming to solve the problems of the prior art that the optical fiber sensing layer distinguishes the sensing blind area, the sensing resolution of the sensing layer is inconsistent, the sensing sensitivity is uneven, and the application range is small.

Method used

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  • Optical fiber sensing layer and its monitoring system
  • Optical fiber sensing layer and its monitoring system
  • Optical fiber sensing layer and its monitoring system

Examples

Experimental program
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Effect test

no. 1 approach

[0047] Such as image 3 and Figure 4 As shown, the diameters of the bends 121 and 123 of the same optical fiber row section 122 on the same interlayer 13 are equal, so that the diameters of the bends 123 are equal and change regularly, which is beneficial to the arrangement of the wiring 121 on the same optical fiber row section 122; the same interlayer The diameters of the bends 123 of the routing 121 of different fiber segments 122 on 13 gradually increase or decrease along the second direction, because the fiber segment 122 with the smaller diameter of the bend 123 gradually fills up and fits into the diameter of the larger bend 123 In the optical fiber line section 122, therefore, the routing 121 of the optical fiber line section 122 on the pressure sensitive component film 11 in this embodiment will show a transition trend in which the diameter of the bend 123 gradually increases or decreases, so that the pressure sensitive component film 11 The routing 121 of the optic...

no. 2 approach

[0049] Such as image 3 and Figure 5 As shown, the diameters of the bends 123 of the wires 121 on all fiber segments 122 in the same interlayer 13 are equal. In this way, the diameters of the bends 123 of all the optical fiber segments 122 are equal and change regularly, which is conducive to the regular, uniform and relatively dense distribution of the lines of the optical fiber segments 122 on the pressure sensitive component film 11. Similarly, the above-mentioned optical fiber sensing layer 10 The sensitivity is uniform, the light attenuation value is relatively consistent, the sensitivity is high and adjustable, and the resolution is high.

no. 3 approach

[0051] Such as image 3 and Figure 6 As shown, the diameters of the bends 123 of the wires 121 on the same optical fiber row section 122 in the same interlayer 13 are different, and two adjacent optical fiber row sections 122 are symmetrical about the center. In this way, every two optical fiber row segments 122 form a group of segments, and multiple groups of segments are distributed in parallel on the pressure sensitive component film 11. Similarly, the regular changes of the optical fiber row segment 122 routing 121 are conducive to making the above-mentioned optical fiber sensing layer 10 sensitive. The brightness is uniform, the light attenuation value is relatively consistent, the sensitivity is high and adjustable, and the resolution is high.

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Abstract

The present invention relates to the technical field of optical fiber sensing layer, and provides an optical fiber sensing layer, including two layers of pressure-sensitive component films stacked up and down and at least one soft smooth film to separate the space between the two layers of pressure-sensitive component films into at least two compartments, The same interlayer is provided with at least one optical fiber row segment extending along the first direction in a multi-segment "S"-shaped serial connection, and the upper and lower adjacent optical fiber row segments are bent and stacked in a staggered manner. The optical fiber sensing layer is evenly arranged on the film of the pressure sensitive component to form the optical fiber sensing area, and the bending of the upper and lower two optical fiber line segments is staggered and stacked. It can quickly and accurately detect breathing, heartbeat, sleep, temperature and humidity, and has the characteristics of high sensitivity and adjustable, high resolution, anti-electromagnetic interference, and uniform sensitivity. The invention also provides a monitoring system, which includes an optical fiber sensing layer, a light source, a light detection component, an optical fiber transmission circuit and a processing circuit.

Description

technical field [0001] The invention belongs to the technical field of optical fiber sensing layer, and in particular relates to an optical fiber sensing layer and a monitoring system. Background technique [0002] In recent years, with the development of optical fiber sensing layer monitoring technology, the optical fiber sensing layer can be used to detect human breathing, heartbeat, sleep, etc., and has been gradually applied to the field of household products, such as baby pads, seat cushions, etc. [0003] Take the human respiration monitoring mattress with optical fiber sensing layer as an example, its appearance is a kit, and the kit is equipped with an optical fiber sensing layer. The optical fiber sensing layer includes optical fiber and upper and lower layers of grids. , the optical fibers are arranged parallel to each other in the grid to form a sensing area. In this way, when the human body is pressed on the mattress, as the human body breathes, the upper and low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B5/0205A61B5/01
CPCA61B5/0205A61B5/6891A61B5/6804A61B2562/0271A61B2562/029G01L1/242G01D5/35374A61B2562/0266A61B5/0059A61B5/02055A61B5/0873A61B5/6892A61B2562/0247A61B5/1102G01D5/353
Inventor 杨淑贞
Owner HUIJIA HEALTH LIFE TECH
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