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Novel plantar pressure monitoring system and method based on distributed optical fiber sensing

A technology of distributed optical fiber and plantar pressure, which is applied in the direction of measuring, measuring force, and measuring devices by measuring the change of optical properties of materials when they are stressed, and can solve the problem of small number of equipment, large accidents, and small amount of data, etc. Problems, to achieve the effect of high cost, instrument safety, and high durability

Pending Publication Date: 2020-11-24
NANJING FAAIBO OPTOELECTRONICS TECH
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Problems solved by technology

The equipment used in the traditional treatment and correction method is expensive, the number of equipment is small, and it can only be used in the hospital for a short time, the amount of data collected is small, and the chance is too large

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  • Novel plantar pressure monitoring system and method based on distributed optical fiber sensing

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0030] figure 1 It is a system structure diagram of the present invention, a new plantar pressure monitoring system based on distributed optical fiber sensing, the system includes: mesh insoles, optical fibers, lasers, distributed optical fiber strain interrogators, and storage devices. in:

[0031] Mesh insole: Each mesh of the insole has a rubber cylinder for winding the optical fiber. The rubber cylinder will be elastically deformed by the extrusion of the sole of the foot, so that the plastic optical fiber wound on it will be deformed, and then all parts of the insole can be obtained. pressure distribution;

[0032] Optical fiber: used for light transmission, has good toughness, high strength, short diameter, low loss, and can be wound multiple times on the insole rubber cylinder to improve measurement accuracy;

[0033] Laser: As a light so...

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Abstract

The invention discloses a plantar pressure monitoring system and method based on distributed optical fiber sensing. The system comprises a mesh insole, an optical fiber, a laser, a distributed opticalfiber strain demodulator and a storage device. When the insole made of rubber is extruded by a foot sole; the special optical fibers fixed on the insole are deformed; the distributed optical fiber strain demodulator is used for analyzing the deformation degrees of different positions of the optical fibers, the relative magnitude of plantar pressure borne by different positions of the shoe sole can be known, and therefore whether the walking posture of a wearer is correct or not is judged, and great significance is achieved for gait correction and treatment of walking of children suffering from strephenopodia cerebral palsy.

Description

technical field [0001] The invention relates to the technical field of optical fiber sensing, in particular to a new plantar pressure monitoring system and method based on distributed optical fiber sensing Background technique [0002] Distributed optical fiber sensing technology is developing rapidly, and the technology for measuring tiny deformations has become mature, especially with the help of φ-OTDR and BOTDA technology, the spatial resolution can reach centimeter level, with high precision and fast response, and it can detect optical fiber Accurate positioning of deformation points has attracted a lot of research and attention in recent years. [0003] Walking is one of the most basic and important activities of human beings. During normal walking, the foot is the only part in contact with the outside world. The magnitude of the force on each part of the foot and the tactile information fed back by the plantar skin have a great impact on human movement and balance co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/24
CPCG01L1/242
Inventor 张道陈龙邹宁睦童梅玲魏宁张昕王园园
Owner NANJING FAAIBO OPTOELECTRONICS TECH
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