Procedure and system for detecting a person's fall

Details Procedure and system for detecting a person's fall Procedure and system for detecting a person's fall

2006-06-05

2008-09-09

La, Anh V (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S573700, C340S689000, C600S301000

Reexamination Certificate

active

07423537

ABSTRACT:
A person under supervision wears a sensor consisting of at least one accelerometer (31) and a magnetometer (41), oriented in his vertical direction. A fall event is picked up when a significant and rapid oscillation of the acceleration signal coincides with a shift in the ambient magnetic field between two levels (between t=4000 and t=5000). Additional criteria that may also make use of the magnetometer enable the diagnosis to be made, and it is easier and safer to establish this than with accelerometers alone.

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