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US 10,959,658 B2Granted
Method and device for identifying a subject in a sensor based monitoring system
AssigneeKoninklijke Philips N.V.
InventorJens Muhlsteff
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Abstract
The invention relates to a method and device for identifying a subject in a sensor based monitoring system. This method comprises an acquisition step wherein sensors of a sensor array acquire subject related sensor signals, a pattern extraction step wherein a signal pattern is derived from the sensor signals acquired in the preceding acquisition step, and an identification step wherein the signal pattern derived in the preceding pattern extraction step is compared to predetermined signal patterns, each predetermined signal pattern being related to a subject profile, to identify a subject profile whose predetermined signal pattern related thereto matches the derived signal pattern.
Claims15
A method, comprising processor circuitry in a sensor-based monitoring system:
- acquiring from an array of sensors a plurality of subject-related sensor signals which are related to a particular subject to be identified, wherein the array of sensors includes a plurality of Doppler radar sensors,
- wherein each of the Doppler radar sensors is configured to detect a change of a distance of an object from the Doppler radar sensor,
- wherein the subject-related sensor signals are representative of a motion of a thorax of the particular subject to be identified, due to respiration by the particular subject to be identified;
- deriving from the subject-related sensor signals a signal pattern for the particular subject to be identified;
- comparing the derived signal pattern for the particular subject to be identified to a plurality of previously stored predetermined signal patterns,
- wherein each previously stored predetermined signal pattern has a corresponding previously stored subject profile stored in association with the previously stored predetermined signal pattern,
- wherein each previously stored subject profile relates to a unique configuration of the sensor-based monitoring system based on specific signal processing parameters and sensor array configuration data that fits the characteristics of a previously identified subject, and
- wherein each previously stored predetermined signal pattern is previously stored prior to acquiring the subject-related sensor signals related to the particular subject to be identified;
- and
- when a particular predetermined signal pattern, corresponding to a particular subject profile, matches the derived signal pattern based on the comparison:
- identifying the particular subject profile, and
- configuring the array for a subsequent monitoring of the particular subject, based on the identified particular subject profile,
- wherein configuring the array of sensors comprises determining a sub-set of sensors for monitoring the particular subject, among the sensors in the array of sensors.
10 more elements
A system, comprising:
- an array of sensors including a plurality of Doppler radar sensors and a plurality of acceleration sensors,
- wherein the array of sensors is integrated into a backrest of a seat, and
- wherein each of the Doppler radar sensors is configured to detect a change of a distance of an object from the Doppler radar sensor;
- a sensor control circuit configured to:
- acquire, from the array of sensors, subject-related sensor signals which are related to a particular subject to be identified, and
- output signal data, wherein the signal data includes first signal data, acquired from the Doppler radar sensors,
- wherein the first signal data is representative of a motion of a thorax of the particular subject to be identified, due to respiration by the particular subject to be identified, and
- wherein the signal data includes second signal data, acquired from the acceleration sensors,
- wherein the second signal data is representative of a deformation of the seat by the particular subject to be identified;
- and
- a signal processing circuit configured to:
- receive the signal data from the sensor control circuit,
- derive, from the acquired subject-related sensor signals, a signal pattern for the particular subject to be identified;
- compare the derived signal pattern for the particular subject to be identified to a plurality of previously stored predetermined signal patterns,
- wherein each previously stored predetermined signal pattern has a corresponding previously stored subject profile stored in association with the previously stored predetermined signal pattern,
- wherein each previously stored subject profile relates to a unique configuration of the system based on specific signal processing parameters and sensor array configuration data that fits the characteristics of a previously identified subject,
- wherein each previously stored predetermined signal pattern is previously stored prior to acquiring the subject-related sensor signals related to the particular subject to be identified;
- and
- when a particular predetermined signal pattern, corresponding to a particular subject profile, matches the derived signal pattern based on the comparison:
- identify the particular subject profile, and
- configure the array for a subsequent monitoring of the particular subject, based on the identified particular subject profile,
- wherein configuring the array of sensors comprises determining a sub-set of sensors for monitoring the particular subject, among the sensors in the array of sensors.
19 more elements
A system, comprising:
- an array of sensors including a plurality of Doppler radar sensors, wherein each of the Doppler radar sensors is configured to detect a change of a distance of an object from the Doppler radar sensor;
- a sensor control circuit communicating with the array of sensors and configured to:
- acquire, from the array of sensors, subject-related sensor signals which are related to a particular subject to be identified, and
- output signal data, wherein the signal data is representative of a motion of a thorax of the particular subject to be identified, due to respiration by the particular subject to be identified;
- and
- a signal processing circuit configured to:
- receive the signal data from the sensor control circuit,
- derive, from the received signal data, a signal pattern for the particular subject to be identified,
- compare the derived signal pattern for the particular subject to be identified to a plurality of previously stored predetermined signal patterns,
- wherein each previously stored predetermined signal pattern has a corresponding previously stored subject profile stored in association with the previously stored predetermined signal pattern,
- wherein each previously stored subject profile relates to a unique configuration of the system based on specific signal processing parameters and sensor array configuration data that fits the characteristics of a previously identified subject,
- wherein each previously stored predetermined signal pattern is previously stored prior to acquiring the subject-related sensor signals related to the particular subject to be identified, and
- when a particular predetermined signal pattern, corresponding to a particular subject profile, matches the derived signal pattern based on the comparison:
- identify the particular subject profile, and
- configure the array for a subsequent monitoring of the particular subject, based on the identified particular subject profile,
- wherein configuring the array of sensors comprises determining a sub-set of sensors for monitoring the particular subject, among the sensors in the array of sensors.
13 more elements
Dependencies are inferred from the claim text.