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US 11,693,383 B1Granted
Systems and methods for providing hub-based motion detection using distributed, light-based motion sensors
AssigneeSignify Holding B.V.
InventorsDavid Smith, Neil Joseph
Life of this patent
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Abstract
Systems and methods are provided herein for determining motion in a volume using a lighting based sensor. A status of a light is determined with which a motion sensor is associated. Motion measurements are received from the motion sensor. Based on the motion measurements, a motion score is determined. A room status is adjusted based on the motion score.
Claims24
A method of determining motion in a volume using a lighting based sensor implemented by one or more data processors forming one or more computing devices, the method comprising:
- determining, by at least one data processor, a status of a light with which a motion sensor is associated;
- receiving, by at least one data processor, motion measurements from the motion sensor;
- determining, by at least one data processor, based on the motion measurements, a motion score, wherein determining the motion score further comprises:
- determining a motion signal representation of the motion measurements;
- calculating the motion score based on at least one of a number of transitions in the motion signal representation and a number of smoothed reversals in the motion signal representation, wherein calculating the motion score comprises:
- comparing a data point of the motion signal representation to a most-extreme value variable;
- replacing the most-extreme valuable variable with the data point if the data point exceeds the most-extreme value variable;
- identifying a next data point below the most-extreme value variable as one of the smoothed reversals in the motion signal representation;
- and
- averaging corresponding voltages of recent smoothed reversals to determine the motion score;
- adjusting, by at least one data processor, a room status control based on the motion score;
- and
- adjusting, by at least one data processor, a room light level or a room temperature based on the room status control.
10 more elements
A method of determining motion in a volume using a lighting based sensor implemented by one or more data processors forming one or more computing devices, the method comprising:
- determining, by at least one data processor, a status of a light with which a motion sensor is associated;
- receiving, by at least one data processor, motion measurements from the motion sensor;
- determining, by at least one data processor, based on the motion measurements, a motion score, wherein determining the motion score further comprises:
- determining a motion signal representation comprising a plurality of frequencies;
- removing a bias from the motion signal representation;
- generating a guard band around a midline of the motion signal representation;
- and
- determining a number of zero crossings from the motion signal representation, wherein a zero crossing occurs when the signal exceeds the guard band and the motion score comprises the number of zero crossings;
- adjusting, by at least one data processor, a room status control based on the motion score;
- and
- adjusting, by at least one data processor, a room light level or a room temperature based on the room status control.
8 more elements
A system determining motion in a volume using a lighting based sensor, the system comprising:
- at least one data processor;
- memory storing instructions, which when executed by at least one data processor, result in operations comprising:
- determining, a status of a light with which a motion sensor is associated;
- receiving motion measurements from the motion sensor;
- determining, based on the motion measurements, a motion score, wherein determining the motion score further comprises:
- determining a motion signal representation of the motion measurements;
- and
- calculating the motion score based on at least one of a number of transitions in the motion signal representation, a number of smoothed reversals in the motion signal representation, and a slew rate of the motion signal representation, wherein calculating the motion score comprises:
- comparing a data point of the motion signal representation to a most-extreme value variable;
- replacing the most-extreme valuable variable with the data point if the data point exceeds the most-extreme value variable;
- identifying a next data point below the most-extreme value variable as one of the smoothed reversals in the motion signal representation;
- and
- averaging corresponding voltages of recent smoothed reversals to determine the motion score;
- adjusting a room status control based on the motion score;
- and
- adjusting a room light level or a room temperature based on the room status control.
13 more elements
A system determining motion in a volume using a lighting based sensor, the system comprising:
- at least one data processor;
- memory storing instructions, which when executed by at least one data processor, result in operations comprising:
- determining a status of a light with which a motion sensor is associated;
- receiving motion measurements from the motion sensor;
- determining, based on the motion measurements, a motion score, wherein determining the motion score further comprises:
- determining a motion signal representation comprising a plurality of frequencies;
- removing a bias from the motion signal representation;
- generating a guard band around a midline of the motion signal representation;
- and
- determining a number of zero crossings from the motion signal representation, wherein a zero crossing occurs when the signal exceeds the guard band and the motion score comprises the number of zero crossings;
- adjusting a room status control based on the motion score;
- and
- adjusting a room light level or a room temperature based on the room status control.
10 more elements
Dependencies are inferred from the claim text.