Detection of passenger breathing
AssigneeValeo Comfort and Driving Assistance
InventorsEloi Desbazeilles, Onur Oguz, Kawtar Es-Saghir, Georges Djokic
Life of this patent
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Abstract
Described is a method implemented by an ultra-wide band system in a vehicle for detecting the breathing of one or more passengers. The ultra-wide band system includes one or more ultra-wide band sensors. For each ultra-wide band sensor, a radar echo signal that has an acquisition sampling frequency is acquired. Breathing search processes are performed for each radar-echo signal.
Claims10
A method implemented by an ultra-wide band system in a vehicle for detecting the breathing of one or more passengers, the ultra-wide band system comprising one or more ultra-wide band sensors, the method comprising, for each ultra-wide band sensor:
- acquisition of acquiring a radar-echo signal having an acquisition sampling frequency;
- and
- performing a plurality of breathing search processes comprising a first process and a second process the first process receiving as input a first sub-sample of a portion of the radar-echo signal having a first duration the second process receiving as input a second sub-sample of a portion of the radar-echo signal having a second duration, the first duration being greater than the second duration and a frequency of the first sub-sample being less than a frequency of the second sub-sample.
Dependencies are inferred from the claim text.