Falls are unexpected events and can have serious consequences such as injury, injury-related disorders and death. As a result of falling, the person may lose consciousness or become unable to call for help. Therefore, one of the biggest problems especially for the elderly population is falling. Elderly people may be unable to call for help after falling.
In this project, a practical, small and cost effective system has been designed to detect post-fall immobility and send wireless alerts to emergency services. This system consists of a fall detector and wireless warning application. The drop sensor consists of an accelerometer, a wireless data transfer module and a microcontroller for their control.
The accelerometer measures the gravitational acceleration according to the angular position. Data from the accelerometer is passed through software filters and compared with the comparison table consisting of experimentally obtained fall types and then it is decided whether the motion is a fall or not. If a fall is detected, data is transmitted wirelessly over the internet system. The fall detection system detected 90% of falls over 120 trials and did not produce any false fall result if there was no fall in daily use for 2 days. The design cost 110TL (20 USD). It’s packaged as a clock shaped. Its dimensions are 5cmx4.5cmx1.5cm and weighs about 50g.
Primary Language | Turkish |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | October 31, 2019 |
Published in Issue | Year 2019 Special Issue 2019 |