Development of FBG based Smart Insole for Monitoring Plantar Pressure
Analysis of plantar pressure distribution is highly important in the field of biomedical and sports-related applications.In this study, a smart insole was developed for the measurement of plantar pressure distribution using optical fiber Bragg grating (FBG) sensing technology.Four FBG sensors characterized by different wavelengths were encapsulated into a silica gel insole for pressure measurement.Plantar positions mounted with FBG sensors in silica gel insole include 1st metatarsus, 3rd metatarsus, 5th metatarsus, and heel position.All FBG sensors were multiplexed together with one optical fiber cable.Performance and functional properties of all FBG based pressure sensors were calibrated in the laboratory to evaluate plantar pressure distribution.A male subject was selected for performing two tests including simple standing test and varying the body posture while standing straight on the smart insole.During standing tests, plantar pressure observed at the heel position was 50% higher than the 1st and 3rd metatarsus, while the pressure of the 5th metatarsus position presents very limited pressure, which is only 20% of the pressure of the heel position.In varying body posture test, by keeping the body straight while body posture changed from straight position to moving forward direction, the plantar pressure of the heel position decreases, but at the same time pressure at the 1st, 3rd and 5th metatarsus position increases gradually to maintain the body balance.Therefore, the smart insole successfully recorded both plantar pressure change and body posture change in terms of the wavelength values collected by FBG sensors.
smart insole FBG monitoring plantar pressure body posture
Rafique Ahmed Zhang Yifan Hong Chengyu Zamir Ahmed Xu Jianchang Zhang Suqing
College of Textiles, Donghua University, China;Engineering Research Center of Technical Textiles, Mi College of Textiles, Donghua University, China;Engineering Research Center of Technical Textiles, Mi Department of Civil Engineering, Shanghai University, China;Key Laboratory of Structure and Wind Tun Ningbo Seduno Group Co., Ltd, China
国际会议
2017 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2017)(2017中非纺织服装国际论坛)
上海
英文
240-244
2017-11-18（万方平台首次上网日期，不代表论文的发表时间）