Journal
IEEE SENSORS LETTERS
Volume 3, Issue 3, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSENS.2019.2892006
Keywords
Sensor applications; fall detection; genetic algorithm (GA); microwave Doppler sensor; real-time data processing
Funding
- JSPS KAKENHI [16K16392]
- Grants-in-Aid for Scientific Research [16K16392] Funding Source: KAKEN
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The risk of falling is a serious problem for the elderly. If the fall remains undetected for a considerable period, hypothermia and dehydration may occur, leading to death. Therefore, real-time detection of falls is critical. We previously proposed a fall-detection system based on a microwave Doppler sensor, which can capture the object's velocity. Our system performs template matching based on the dynamic time warping distance; hence, the processing time depends on the number of template datasets. Herein, we attempt a real-time fall detection by reducing the number of templates. We apply the genetic algorithm to select better templates. The fitness of the selected templates is evaluated by dividing the accuracy by the number of templates.
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