MyJournals Home  

RSS FeedsSensors, Vol. 19, Pages 5336: Self-Powered Smart Insole for Monitoring Human Gait Signals (Sensors)

 
 

4 december 2019 14:00:06

 
Sensors, Vol. 19, Pages 5336: Self-Powered Smart Insole for Monitoring Human Gait Signals (Sensors)
 




With the rapid development of low-power consumption wireless sensors and wearable electronics, harvesting energy from human motion to enable self-powered sensing is becoming desirable. Herein, a pair of smart insoles integrated with piezoelectric poly(vinylidene fluoride) (PVDF) nanogenerators (NGs) are fabricated to simultaneously harvest energy from human motion and monitor human gait signals. Multi-target magnetron sputtering technology is applied to form the aluminum electrode layers on the surface of the PVDF film and the self-powered insoles are fabricated through advanced 3D seamless flat-bed knitting technology. Output responses of the NGs are measured at different motion speeds and a maximum value of 41 V is obtained, corresponding to an output power of 168.1 μW. By connecting one NG with an external circuit, the influence of external resistance, capacitor, and motion speed on the charging characteristics of the system is systematically investigated. To demonstrate the potential of the smart insoles for monitoring human gait signals, two subjects were asked to walk on a treadmill at different speeds or with a limp. The results show that one can clearly distinguish walking with a limp from regular slow, normal, and fast walking states by using multiscale entropy analysis of the stride intervals.


Del.icio.us Digg Facebook Google StumbleUpon Twitter
 
46 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 5337: Energy Efficient Resource Allocation for M2M Devices in LTE/LTE-A (Sensors)
Sensors, Vol. 19, Pages 5350: Dilated Skip Convolution for Facial Landmark Detection (Sensors)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics

Use these buttons to bookmark us:
Del.icio.us Digg Facebook Google StumbleUpon Twitter


Valid HTML 4.01 Transitional
Copyright © 2008 - 2019 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Travel Photos Nachrichten Indigonet Finances Leer Mandarijn