2008년 추계학술대회
Current Result Document :
| 한글제목(Korean Title) |
Neural network design for Ambulatory monitoring of elderly |
| 영문제목(English Title) |
Neural network design for Ambulatory monitoring of elderly |
| 저자(Author) |
Annapurna Sharma
Hun-Jae Lee
Wan-Young Chung
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| 원문수록처(Citation) |
VOL 12 NO. 02 PP. 0265 ~ 0269 (2008. 10) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Home health care with compact wearable units sounds to be a convenient solution for the elderly people living independently. This paper presents a method to detect fall from the other activities of daily living and also to classify those activities. This kind of ambulatory monitoring enables them to get an emergency help in the case of the fatal fall event and can provide their general health status by observing the activities being performed in daily life. A tri-axial accelerometer sensor is used to get the acceleration anomalies associated with the user's movements. The three axis acceleration data are transferred to the base station sensor node via an IEEE 802.15.4 compliant zigbee module. The base station sensor node sends the data to base station PC for an offline processing. This work shows the feature set preparation using the principal component analysis (PCA) for the designing of neural network. The work includes the most common activities of daily living (ADL) like Rest, Walk and Run along with the detection of fall events from ADL. The angle from the vertical is found to be the most significant feature parameter for classification of fall while mean, standard deviation and FFT coefficients were used as the feature parameter for classifying the other activities under consideration. The accuracy for detection of fall events is 86%. The overall accuracy for ADL and fall is 94%.
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| 키워드(Keyword) |
Accelerometer
Activity classification
Principal component analysis
Neural network
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| 파일첨부 |
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