Method, apparatus, and system for occupancy sensing
First Claim
1. An apparatus for adjusting illumination of a lighting fixture illuminating an environment, the apparatus comprising:
- at least one occupancy sensor to provide sensor data representing at least one occupancy event in the environment illuminated by the lighting fixture;
a memory, operatively coupled to the at least one occupancy sensor, to log the sensor data provided by the at least one occupancy sensor; and
at least one processor, operatively coupled to the lighting fixture and the memory, to;
partition the logged sensor data into a plurality of clusters based on at least one classification parameter;
adjust a sensor timeout based on at least one cluster in the plurality of clusters, the sensor timeout representing an amount of time between a change in the at least one occupancy event and a change in the illumination of the lighting fixture;
generate at least one output state based on at least one characteristic of each cluster of at least a subset of the plurality of clusters; and
adjust the illumination of the lighting fixture based on the at least one output state and the sensor timeout.
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Accused Products
Abstract
Embodiments of the present invention include an occupancy sensing unit configured to monitor an environment illuminated by a lighting fixture. An inventive occupancy sensing unit may include an occupancy sensor to detect radiation indicative of at least one occupancy event in the environment illuminated by the lighting fixture according to sensing parameters. The occupancy sensor can be coupled to a memory that logs sensor data, which represent the occupancy events, provided by the occupancy sensor. A processor coupled to the memory performs an analysis of the sensor data logged in the memory and adjusts the sensing parameters of the occupancy sensor based on the analysis.
666 Citations
21 Claims
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1. An apparatus for adjusting illumination of a lighting fixture illuminating an environment, the apparatus comprising:
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at least one occupancy sensor to provide sensor data representing at least one occupancy event in the environment illuminated by the lighting fixture; a memory, operatively coupled to the at least one occupancy sensor, to log the sensor data provided by the at least one occupancy sensor; and at least one processor, operatively coupled to the lighting fixture and the memory, to; partition the logged sensor data into a plurality of clusters based on at least one classification parameter; adjust a sensor timeout based on at least one cluster in the plurality of clusters, the sensor timeout representing an amount of time between a change in the at least one occupancy event and a change in the illumination of the lighting fixture; generate at least one output state based on at least one characteristic of each cluster of at least a subset of the plurality of clusters; and adjust the illumination of the lighting fixture based on the at least one output state and the sensor timeout. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for adjusting illumination of a lighting fixture illuminating an environment, the method comprising:
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acquiring sensor data from at least one occupancy sensor, the sensor data representing at least one occupancy event in the environment illuminated by the lighting fixture; partitioning the sensor data into a plurality of clusters based on at least one classification parameter with at least one processor; adjusting a sensor timeout based on at least one cluster in the plurality of clusters, the sensor timeout representing an amount of time between a change in the at least one occupancy event and a change in the illumination of the lighting fixture; generating at least one output state based on at least one characteristic of each cluster of at least a subset of the plurality of clusters with the at least one processor; and adjusting the illumination of the lighting fixture based on the at least one output state and the sensor timeout. - View Dependent Claims (20, 21)
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Specification