Self Powered Wearable Health Monitoring System

2011 ◽  
Vol 403-408 ◽  
pp. 3839-3846
Author(s):  
Harkanwal Singh ◽  
Choudhary Mayur Lalchand

For consistent remote health monitoring to be realized, power source must be independent of time factor. We require small, inexpensive, ubiquitous sensors to be realized, all constituents of the device, including the power source, must be directly integrable. For long term application the device must be capable of scavenging power from its surrounding environment. An apparent solution lies in conversion of mechanical energy produced by body movements to electrical energy. Here, we propose a health monitoring system utilizing energy scavenging from body movements for signal transmission through wireless antenna.

2010 ◽  
Vol 148-149 ◽  
pp. 1390-1393
Author(s):  
De Shan Shan ◽  
Peng Yan ◽  
Zhen Hua Wang

Intelligent health monitoring system of the long-span railway cable-stayed bridge requires the comprehensive knowledge of instrumentation, analytical and information processing technologies with the knowledge and experiences in design, construction, operation and maintenance of railway cable-stayed bridge for long-term monitoring the performance throughout its lifecycle. It is necessary to perform sensor-based structural monitoring for identifying the bridge conditions in order to assure the structural safety and to evaluate the operational performance. The considerations for deploying a proper monitoring system are appropriate sensor instrumentation, robust signal acquisition, reliable signal processing, and intelligent signal and information processing. The experience on developing an autonomous monitoring system in the one certain railway cable-stayed bridge newly constructed is introduced in this paper. Sensor and hardware instrumentation, signal transmission, signal acquisition and analysis are schematically described mainly. Experience through this work will be worthwhile lessons for other similar efforts.


Author(s):  
S.R. Jino Ramson ◽  
Walter D. Leon-Salas ◽  
Zachary Brecheisen ◽  
Erika J. Foster ◽  
Cliff T. Johnston ◽  
...  

Author(s):  
Shinji KOGANEZAWA ◽  
Tomotake ISHII ◽  
Arisu AMIURA ◽  
Hiroshi TANI ◽  
Renguo LU ◽  
...  

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 629 ◽  
Author(s):  
Shuxin Shi ◽  
Qiuqin Yue ◽  
Zuwei Zhang ◽  
Jun Yuan ◽  
Jielin Zhou ◽  
...  

Engine health monitoring is very important to maintain the life of engines, and the power supply to sensor nodes is a key issue that needs to be solved. The piezoelectric vibration energy harvester has attracted much attention due to its obvious advantages in configuration, electromechanical conversion efficiency, and output power. However, the narrow bandwidth has restricted its practical application. A self-powered engine health monitoring system was proposed in this paper, and an L-shaped wideband piezoelectric energy harvester was designed and implemented. The L-shaped beam-mass structure and the piezoelectric bimorph cantilever beam structure was combined to form the wideband piezoelectric energy harvester configuration, which realized effective output at both resonance points. The theoretical model and finite element simulation analysis of the wideband piezoelectric energy harvester were proposed and the parameters were optimized based on that to meet the requirement of the vibration frequency of the engine. The experimental results show that the proposed energy harvester can be applied into the automobile engine health monitoring system. Engine signal analysis results also demonstrate that the proposed system can be used for engine health monitoring.


2010 ◽  
Author(s):  
Xinlin P. Qing ◽  
Steven R. Anton ◽  
David Zhang ◽  
Amrita Kumar ◽  
Daniel J. Inman ◽  
...  

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