Fall detectors and a method of detecting falls
A detector and sensor technology, applied in special sensors, fall detectors and the use of multiple sensors to detect falls, can solve problems such as difficult implementation, difficulty in reliable detection of falls, low sampling rate, etc.
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[0029] Although the invention will be described herein with reference to a fall detector worn by a person and detecting a fall of that person, it will be appreciated that the fall detector and method of detecting a fall according to the invention can be applied to alternative uses , such as detecting a fall of an object, such as a hard drive or other sensitive electronic equipment.
[0030] The present invention provides a fall detector comprising an air flow sensor for providing a measurement indicative of a change in vertical velocity and / or height of the fall detector. In a preferred embodiment, the fall detector comprises another sensor or sensors, eg a sensor for measuring or a sensor providing a measurement indicative of acceleration (eg an accelerometer). In these embodiments, measurements from the airflow sensor are used to determine height change and / or vertical velocity of the fall detector and are processed in combination with acceleration measurements to determine ...
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