FALL DETECTION SYSTEM AND METHOD
First Claim
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1. A system for detecting falls, the system comprising:
- a) a mobile pressure sensor for generating a mobile pressure signal;
b) a reference pressure sensor at a reference height above a surface for generating a reference pressure signal; and
c) a processor in communication with the mobile pressure sensor and the reference pressure sensor for performing the steps of;
i) determining a height above the surface of the mobile pressure sensor based on the reference height and the reference pressure signal and the mobile pressure signal; and
ii) if the height is below a threshold height, determining that a fall has occurred.
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Abstract
A system and method for detecting falls is disclosed herein. A mobile pressure sensor is used to generate a mobile pressure signal and a reference pressure sensor at a reference height above a surface is used to generate a reference pressure signal. A processor in communication with the mobile pressure sensor and the reference pressure sensor is used to perform the steps of: (i) determining a height above the surface of the mobile pressure sensor based on the reference height and the reference pressure signal and the mobile pressure signal; and (ii) if the height is below a threshold height, determining that a fall has occurred.
54 Citations
20 Claims
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1. A system for detecting falls, the system comprising:
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a) a mobile pressure sensor for generating a mobile pressure signal; b) a reference pressure sensor at a reference height above a surface for generating a reference pressure signal; and c) a processor in communication with the mobile pressure sensor and the reference pressure sensor for performing the steps of; i) determining a height above the surface of the mobile pressure sensor based on the reference height and the reference pressure signal and the mobile pressure signal; and ii) if the height is below a threshold height, determining that a fall has occurred. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of detecting falls, the method comprising:
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a) generating a reference pressure signal at a first location at a reference height above a surface; b) generating a mobile pressure signal; c) determining a height of a source of the mobile pressure signal above the surface based on the reference pressure signal and the mobile pressure signal; and d) if the height is below a threshold height, determining that a fall has occurred. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A wristband mounted device, the device comprising;
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a) a pressure sensing circuit for generating a mobile pressure signal; b) a receiver for receiving a reference signal; c) a processor coupled to the pressure sensing circuit, the transceiver, and the memory module; wherein the processor is adapted to determine a height of the wristband device above a surface based on the reference signal and the mobile pressure signal. - View Dependent Claims (19)
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20. A device for providing a reference pressure signal, the device comprising:
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a) a pressure sensing circuit for generating a reference pressure signal; b) a transmitter coupled to the pressure sensing circuit for transmitting the reference pressure signal; c) a memory module for storing sea level temperature, sea level pressure, and a reference height above a surface; d) a processor coupled to the pressure sensing circuit, a transmitter, and memory module; wherein the processor is adapted to determine a height of the device above a surface based on the reference signal, the mobile pressure signal, the sea level temperature and the sea level pressure; and wherein the processor is adapted to determine a height of the surface above sea level based on the reference height above the surface.
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Specification