Sleep monitoring
AssigneeKoninklijke Philips N.V.
InventorsJing Su, Rainer Hilbig, Jun Shi, Huibin Wei
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Abstract
A sleep monitoring system (10) for monitoring the sleep of a subject is disclosed. The system comprises a CO2 sensor (21) and a processor (31) communicatively coupled to the CO2 sensor, wherein the processor is adapted to monitor a CO2 concentration from sensor data produced by the CO2 sensor; and derive sleep pattern information from the monitored CO2 concentration, wherein the sleep pattern information comprises at least an indication that the subject is awake and an indication that the subject is asleep. A sleep monitoring method and computer program product are also disclosed.
Claims17
A sleep monitoring system for monitoring the sleep of a subject, comprising:
- a CO2 sensor for producing sensor data;
- and
- a processor communicatively coupled to the CO2 sensor, wherein the processor is adapted to:
- monitor a CO2 concentration from sensor data produced by the CO2 sensor and derive sleep pattern information from the monitored CO2 concentration, wherein the sleep pattern information comprises at least an indication that the subject is awake and an indication that the subject is asleep;
- wherein,
- the processor is further adapted to:
- provide an indication that the subject is awake when a rate of increase in the monitored CO2 concentration is greater than a first threshold, and
- provide an indication that the subject is asleep when the rate of increase in the monitored CO2 concentration is below the first threshold, further comprising:
- an output device communicatively coupled to the processor for creating a sensory stimulus for the subject in response to a control signal generated by the processor, wherein the processor generates the control signal in response to the sleep pattern information that comprises at least the indication that the subject is awake and the indication that the subject is asleep.
A method of monitoring the sleep of a subject, the method comprising:
- receiving, via a CO2 sensor, a measured CO2 concentration;
- deriving, via a processor communicatively coupled to the CO2 sensor, sleep pattern information from the measured CO2 concentration, wherein the sleep pattern information comprises providing at least an indication that the subject is awake and an indication that the subject is asleep;
- wherein:
- deriving said sleep pattern information comprises:
- providing, via the processor, an indication that the subject is awake when a rate of increase in the monitored CO2 concentration is greater than a first threshold;
- and
- providing, via the processor, an indication that the subject is asleep when the rate of increase in the monitored CO2 concentration is below the first threshold, the method further comprising:
- generating, via the processor, a control signal in response to the sleep pattern information that comprises at least the indication that the subject is awake and the indication that the subject is asleep;
- and
- creating, via an output device communicatively coupled to the processor, a sensory stimulus for the subject in response to the control signal generated by the processor.
Dependencies are inferred from the claim text.