Browsing by Author "Chen, Show-Hong"

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CONSERVING BANDWIDTH IN A WIRELESS SENSOR NETWORK FOR TELEMEDICINE APPLICATION
(2010)
Hsu, Shuo-Jen
;
Chen, Chin-Hsing
;
Chen, Show-Hong
;
Huang, Wen-Tzeng
;
Chang, Yuan-Jen
Telemedicine aided by wireless sensor networks (WSN) has recently become a healthcare trend. Many previous studies have adopted the ZigBee-based WSN to implement a platform and/or a telemedicine system. However, the low data rate and bandwidth have limited the maximum number of nodes in a WSN during continuous and simultaneous transmission. The issue of low data throughput has not been addressed in previous research. In this study, we propose an arrhythmia-aware system, and a new DSP-based WSN platform is developed for the high compression performance of physiological data in a ZigBee-based WSN. Proven by simulations and several real tests, the combination of the proposed platform and the sensor nodes can lead to more bandwidth conservation and extend the WSN scale for the next generation of telemedicine system.
M3S-based electrical wheelchair with head-controlled device
(2006-01-01)
Chen, Show-Hong
;
Chen, Yu-Luen
;
Kuo, Te-Son
;
Chu, Chiung-Yu
;
Hung, Chao-Nan
The motivation of this research is to improve the ability of ambulation for people with a certain degree of disability. The control of the wheelchair is using two tilt sensors as an input-controlling module. One of the tilt sensors detects the anterior/posterior tilting of the head and moves the wheelchair forward/backward, the other distinguishes the left/right swing of the head. In order to increase the safety of this system, the M3S protocol established by the European Commission is also applied to this research. The system based on M3S protocol has the advantage of real-time signal transmission and emergent status monitoring for SCI patients with C2-C4 level.