Occupant heartbeat detection and monitoring system
First Claim
Patent Images
1. A heartbeat sensing system comprising:
- an occupant support having an occupant support surface;
a first sensor proximate said occupant support surface and generating a first sensor signal;
a second sensor remote from said occupant support surface and generating a second sensor signal; and
a signal conditioning module connected to said first sensor and said second sensor for processing the first sensor signal and the second sensor signal to detect a heartbeat, wherein the second sensor is proximate a floor on which said occupant support is supported.
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Abstract
The disclosed invention uses two sensors to capture the heartbeat and environmental noises of an occupant of a vehicle or hospital bed. One of the sensors is placed on a seat or bed frame adjacent the occupant. A second sensor is placed remotely from the occupant, on a vehicle floor, or remote portion of the bed frame. A signal conditioning module is attached to the first and second sensors for detecting the heartbeat signal. Specialized software is used for processing the signal and decision making based upon the extracted heartbeat signal. The invention is capable of operating despite environmental noise and vibrations.
82 Citations
30 Claims
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1. A heartbeat sensing system comprising:
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an occupant support having an occupant support surface; a first sensor proximate said occupant support surface and generating a first sensor signal; a second sensor remote from said occupant support surface and generating a second sensor signal; and a signal conditioning module connected to said first sensor and said second sensor for processing the first sensor signal and the second sensor signal to detect a heartbeat, wherein the second sensor is proximate a floor on which said occupant support is supported. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A heartbeat sensing system comprising:
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a first sensor mounted to a vehicle seat; a second sensor mounted proximate a vehicle floor; and a signal conditioning module connected to said first sensor and said second sensor for processing a first sensor signal from said first sensor and a second sensor signal from said second sensor to detect a heartbeat. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A heartbeat sensing system comprising:
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a first sensor mounted to a bed frame adjacent an occupant area; a second sensor mounted to a bed frame remote from said first sensor; and a signal conditioning module connected to said first sensor and said second sensor for processing a first sensor signal from said first sensor and a second sensor signal from said second sensor to detect a heartbeat. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method of monitoring a heartbeat comprising the steps of:
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a) monitoring vibration at a first location proximate an occupant heart; b) monitoring vibration at a second location remote from the occupant heart and the first location; and c) using the vibration at the second location to remove noise from the vibration at the first location to determine an occupant heartbeat. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification