 |
Fall detection systems are classified into three categories: camera-based systems, ambiance sensor device, and wearable device.
Computer vision uses cameras for device motion tracking. The drawbacks of this approach are that they are limited to a given region and do not guarantee confidentiality and are expensive.
Ambiance-based equipment can be mounted around an area that can be sensed with pressure sensors, PIR (Passive Infrared Sensor), Doppler, microphone. Drawbacks consisting of the range and environmental conditions may lead to low precision.
Wearable devices that are attached to the user: an accelerometer and a gyro. Such devices have the benefits of being compact, affordable, and easy to use.
Advantages of wearable devices: Not limited by space, easy to adjust the hardware system, less susceptible to environmental interference, low cost.
|
IEEE/ICACT20220120 Slide.03
[Big Slide]