An Electrocardiogram Signal Monitoring System with Heart Rate Detection and Energy Harvesting for Vehicle Driver
博士 === 國立中正大學 === 電機工程研究所 === 103 === An Electrocardiogram (ECG) signal monitoring system with heart rate detection and energy harvesting based on smart phone for vehicle driver is proposed. There are four parts in this proposed system. The first part includes the proposed high resolution and low po...
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| Format: | Others |
| Language: | en_US |
| Published: |
2015
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| Online Access: | http://ndltd.ncl.edu.tw/handle/u6v4wj |
| Summary: | 博士 === 國立中正大學 === 電機工程研究所 === 103 === An Electrocardiogram (ECG) signal monitoring system with heart rate detection and energy harvesting based on smart phone for vehicle driver is proposed. There are four parts in this proposed system. The first part includes the proposed high resolution and low power analog front-end chip to implement the bio-signal sensing circuits (BSC). In the second part, a digital signal processor (DSP) with high recognition rate QRS detection algorithm has been proposed. The third part is the power management with energy harvesting from smart phone. It provides the stable supply voltage to BSC and the power conversion efficiency (PCE) of the proposed rectifier is more than 85%. The last part realizes a data record and heart rate variability (HRV) analysis interface based on Android. The BSC sensing the bio-signal of vehicle driver from conductive fabric on steering wheel. The resolution of BSC is higher than 10 bits. The output signal of BSC can be processed by a wavelet-based QRS detection algorithm and count the R-R interval value. The algorithm which is verified with data from MIT/BIH Arrhythmia Database achieves a sensitivity of 99.68% and a positive predictability of 99.64%. Most of chips are fabricated in TSMC 0.18 μm standard CMOS process.
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