Intelligent garment body temperature measuring model based on optical fiber Bragg grating (OFBG)

A technology of fiber optic Bragg and smart clothing, applied in special data processing applications, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2010-12-15
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the domestic research and development of smart clothing is still in its infancy.

Method used

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  • Intelligent garment body temperature measuring model based on optical fiber Bragg grating (OFBG)
  • Intelligent garment body temperature measuring model based on optical fiber Bragg grating (OFBG)
  • Intelligent garment body temperature measuring model based on optical fiber Bragg grating (OFBG)

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Embodiment Construction

[0025] The best embodiment of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0026] According to the heat transfer mechanism, the present invention establishes the mathematical model of the temperature field of the fiber Bragg grating in the smart clothing, determines the relationship between the temperature measured by the fiber Bragg grating and the actual temperature, and establishes the temperature of the left and right breasts on the basis of the average temperature of the multi-point weighted skin. A weighted model of human body temperature for smart clothing composed of five skin temperatures on the left, right, armpit, and back. The specific implementation steps are:

[0027] 1. Mathematical modeling of fiber Bragg grating temperature field

[0028] During the actual wearing of clothing, due to the movement of the human body, the heat transfer process between the human body, the air layer an...

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Abstract

The invention discloses an intelligent garment body temperature measuring model based on an optical fiber Bragg grating (OFBG), belonging to the technical field of intelligent garments. The invention establishes a mathematical model of an OFBG temperature field in the intelligent garments according to the heat transfer mechanism, determines the relation between the measured temperature and the actual temperature of the OFBG, and corrects the measured temperature value of the OFBG by utilizing the result to obtain the actual temperature of human skin. On the basis of multi-point weighted mean skin temperature, an intelligent garment body temperature weighting model formed by the skin temperature of the left chest, the right chest, the left armpit, the right armpit and the back is established. The body temperature weighting coefficients are as follows: the left front chest is 0.0826, the left armpit is 0.3706, the right armpit is 0.3706, the back is 0.0936, and the right front chest is 0.0826. The measuring error of the body temperature obtained by utilizing the weighting coefficients is +/-0.2DEG C, and the adjustment of the weighting coefficients under the special conditions of a damaged OFBG sensor and the like is considered.

Description

technical field [0001] The invention belongs to the technical field of smart clothing, and in particular relates to a mathematical model for a temperature field of an optical fiber Bragg grating in smart clothing and a human body temperature weighted model modeling. Background technique [0002] Smart clothing is the product of the combination and intersection of electronic information, materials, textiles and other related disciplines. It refers to clothing that can perceive and respond to environmental conditions or factors, that is, it can not only perceive changes in the external environment or internal state of the human body, but also respond to such changes in real time through a feedback mechanism, with real-time monitoring Features. [0003] In foreign countries, the research on smart clothing began in the early 1980s. Due to the relatively backward electronic information technology at that time, the development of smart clothing was very slow. It was bulky and cum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 李鸿强苗长云
Owner TIANJIN POLYTECHNIC UNIV
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