Adaptive Monitoring System and Method

A method of operating a monitoring system, the monitoring system comprising:

• a passive infrared, PIR, detector configured for detecting motion in an environment;
• and an active reflected wave detector arranged to measure wave reflections from a region of interest in the environment;
• wherein the method comprises:
• triggering or otherwise operating the active reflected wave detector responsive to detection of motion by the PIR detector;
• and
• adjusting at least one parameter of the PIR detector responsive to the output of the active reflected wave detector meeting one or more criteria, wherein
• the one or more criteria are dependent on, or indicative of, a location of an entity represented in the output of the active reflected wave detector attributed to have caused the motion detected by the PIR detector, the attributed location being a location of an entity, determined from the output active reflected wave detector, when the output active reflected wave detector is operated in response to the motion detected by the PIR detector.

A controller for a monitoring system that comprises a passive infrared, PIR, detector configured for detecting motion in an environment;

• and an active reflected wave detector arranged to measure wave reflections from a region of interest in the environment;
• wherein the controller is configured to:
• receive signals output from the passive infrared, PIR, detector;
• receive signals from the active reflected wave detector;
• operate or trigger the active reflected wave detector responsive to detection of motion by the PIR detector;
• and
• adjust at least one parameter of the PIR detector responsive to the output of the active reflected wave detector meeting one or more criteria, wherein
• the one or more criteria are dependent on, or indicative of, a location of an entity represented in the output of the active reflected wave detector attributed to have caused the motion detected by the PIR detector, the attributed location being a location of an entity, determined from the output active reflected wave detector, when the output active reflected wave detector is operated in response to the motion detected by the PIR detector.

A tangible, non-transient computer readable medium comprising a computer program product configured such that, when implemented on a processing system or controller for a monitoring system, causes the processing system or controller to:

• receive signals output from a passive infrared, PIR, detector configured for detecting motion in an environment;
• receive signals from an active reflected wave detector arranged to measure wave reflections from a region of interest in the environment;
• operate or trigger the active reflected wave detector responsive to detection of motion by the PIR detector;
• and
• adjust at least one parameter of the PIR detector responsive to the output of the active reflected wave detector meeting one or more criteria, wherein
• the one or more criteria are dependent on, or indicative of, a location of an entity represented in the output of the active reflected wave detector attributed to have caused the motion detected by the PIR detector, the attributed location being a location of an entity, determined from the output active reflected wave detector, when the output active reflected wave detector is operated in response to the motion detected by the PIR detector.