Fall detection system and a method of operating a fall detection system
First Claim
Patent Images
1. A fall detection system comprising:
- one or more detectors that monitor movements of a user of the fall detection system, the one or more detectors including a magnetometer,an analysis element that is coupled to the one or more detectors and analyzes;
at least one output of at least of the one or more detectors to detect a potential fall of the user; and
an output signal of the magnetometer to detect at least one full rotation of at least 360 degrees of the magnetometer,wherein, upon detecting the potential fall of the user, the analysis element causes an alarm element to;
issue an alarm when the at least one full rotation is not detected; and
not issue the alarm when the at least one full rotation is detected.
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Abstract
An alarm (35) provided by a fall detection system (2) may be caused by an accidental drop of the system. Therefore prior to issuing the alarm the fall detection system a confirmation is needed that a potential fall originates from a fall detection system that is worn by a user (4). A fall of a fall detection system that is not attached to a user is characterized by the occurrence of one or more full rotations of the system. Said rotations are identified by analyzing the output signal of a magnetometer, and by detecting a periodicity in said output signal. The fall detection system (2) provides the alarm in dependence of an identified absence of at least one full rotation.
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Citations
19 Claims
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1. A fall detection system comprising:
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one or more detectors that monitor movements of a user of the fall detection system, the one or more detectors including a magnetometer, an analysis element that is coupled to the one or more detectors and analyzes; at least one output of at least of the one or more detectors to detect a potential fall of the user; and an output signal of the magnetometer to detect at least one full rotation of at least 360 degrees of the magnetometer, wherein, upon detecting the potential fall of the user, the analysis element causes an alarm element to; issue an alarm when the at least one full rotation is not detected; and not issue the alarm when the at least one full rotation is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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analyzing, by a processing system, one or more sensor signals to identify a potential fall by a user of a fall detection system, analyzing, by the processing system, an output signal provided by a magnetometer of the fall detection system to detect the absence or presence of at least one full rotation of at least 360 degrees of the magnetometer, and in response to an identification of the potential fall; providing, by the processing system, an alarm in the absence of the at least one full rotation; and preventing, by the processing system, the alarm in the presence of the at least one full rotation. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A non-transitory computer-readable medium that includes a program that, when executed on a processor, causes the processor to:
- detect a potential fall by a user of a fall detection system, analyze an output signal provided by a magnetometer of the fall detection system to detect the absence or presence of at least one full rotation of at least 360 degrees of the magnetometer, and,
in the event that the potential fall is defected and the at least one full rotation is not detected, the program causes the processor to issue an alarm, and in the event that the at least one full rotation is detected, the program prevents the processor from issuing the alarm. - View Dependent Claims (15, 16, 17, 18, 19)
- detect a potential fall by a user of a fall detection system, analyze an output signal provided by a magnetometer of the fall detection system to detect the absence or presence of at least one full rotation of at least 360 degrees of the magnetometer, and,
Specification