Design of body acceleration recording and wireless transmission system

• Main Authors: Tien-Hao Chuang, 莊典豪
• Other Authors: Hsiao-Lung Chan
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/66708387806959883215

碩士 === 長庚大學 === 電機工程研究所 === 93 === Physiological information such as electrocardiogram (ECG), body accelerations, etc. provides important vital sign or pathological information for physiological monitoring and assessment. The long-term ECG recording can catch spontaneous cardiac arrhythmia and investigate the autonomic-related heart rate variability (HRV). The characteristics of HRV and the related autonomic mediation in different physical activities can be investigated by parallel recording the body accelerations. In this thesis, a low-power microcontroller-based (MSP430F149, Texas Instruments, USA) recording system was developed to parallel record ECG and accelerations measured on the chest and the thigh. To avoid the inconvenience caused by wire connection, the accelerations on the thigh is wireless transmitted into the recording system. The system can be operated more than 24 hours. The data stored in the system were retrieved for physical activity classification (lying, sitting, standing and dynamic activity) and HRV analysis to assess the alteration of the autonomic nervous system in different activities.