METHOD FOR SYNERGISTIC OCCUPANCY SENSING IN COMMERCIAL REAL ESTATES
First Claim
1. A method executed by a computer system implementing a building automation system, the building automation system to synergistically sense occupancy inside a building, where the building includes a plurality of control zones, a coarse-grained sensor, and a fine-grained sensor, where the coarse-grained sensor generates a coarse data indicating that a user is in a large area of the building, where the large area includes a control zone in the plurality of control zones and is larger than the control zone, where the fine-grained sensor generates a fine data indicating that the user is in a small area of the building, where the small area is equal in size to or smaller than the control zone, and where the fine data is more accurate but less reliable than the coarse data, the method to improve energy efficiency in the building by generating an actuation plan for the control zone based on the coarse data and the fine data, the method comprising the steps of:
- receiving the coarse data from the coarse-grained sensor;
receiving the fine data from the fine-grained sensor;
normalizing the coarse data into a normalized coarse data;
normalizing the fine data into a normalized fine data, wherein the normalized coarse data and the normalized fine data have a common format;
checking for an overlap between the large area of the building and the small area of the building;
calculating a change in occupancy in the control zone based on the normalized coarse data in response to finding that there is no overlap;
calculating the change in occupancy in the control zone based on the normalized fine data in response to finding that there is overlap; and
generating the actuation plan for the control zone based on the change in occupancy in the control zone.
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Accused Products
Abstract
A method to synergistically sense occupancy inside a building. A coarse-grained sensor in the building generates a coarse data indicating a user is in a large area including a control zone. A fine-grained sensor in the building generates a fine data indicating the user is in a small area. The fine data is more accurate but less reliable than the coarse data. The method to improve energy efficiency by generating an actuation plan for the control zone. The method includes receiving the coarse data and the fine data, normalizing the coarse data and the fine data, checking for an overlap between the large area and the small area, calculating a change in occupancy in the control zone based on the normalized coarse data if there is no overlap and based on the normalized fine data if there is overlap, and generating the actuation plan based on the change in occupancy.
74 Citations
18 Claims
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1. A method executed by a computer system implementing a building automation system, the building automation system to synergistically sense occupancy inside a building, where the building includes a plurality of control zones, a coarse-grained sensor, and a fine-grained sensor, where the coarse-grained sensor generates a coarse data indicating that a user is in a large area of the building, where the large area includes a control zone in the plurality of control zones and is larger than the control zone, where the fine-grained sensor generates a fine data indicating that the user is in a small area of the building, where the small area is equal in size to or smaller than the control zone, and where the fine data is more accurate but less reliable than the coarse data, the method to improve energy efficiency in the building by generating an actuation plan for the control zone based on the coarse data and the fine data, the method comprising the steps of:
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receiving the coarse data from the coarse-grained sensor; receiving the fine data from the fine-grained sensor; normalizing the coarse data into a normalized coarse data; normalizing the fine data into a normalized fine data, wherein the normalized coarse data and the normalized fine data have a common format; checking for an overlap between the large area of the building and the small area of the building; calculating a change in occupancy in the control zone based on the normalized coarse data in response to finding that there is no overlap; calculating the change in occupancy in the control zone based on the normalized fine data in response to finding that there is overlap; and generating the actuation plan for the control zone based on the change in occupancy in the control zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer system implementing a building automation system, the building automation system to synergistically sense occupancy inside a building, wherein the building includes a plurality of control zones, a coarse-grained sensor, and a fine-grained sensor, wherein the coarse-grained sensor generates a coarse data indicating that a user is in a large area of the building, wherein the large area includes a control zone in the plurality of control zones and is larger than the control zone, wherein the fine-grained sensor generates a fine data indicating that the user is in a small area of the building, wherein the small area is equal in size to or smaller than the control zone, and wherein the fine data is more accurate but less reliable than the coarse data, the computer system to improve energy efficiency in the building by generating an actuation plan for the control zone based on the coarse data and the fine data, the computer system comprising:
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a transceiver port configured to receive the coarse data from the coarse-grained sensor, and to receive the fine data from the fine-grained sensor; and a computer processor coupled to the transceiver port and configured to execute a normalizing module and a synergistic control module, the normalizing module configured to normalize the coarse data into a normalized coarse data, and to normalize the fine data into a normalized fine data, wherein the normalized coarse data and the normalized fine data have a common format, and the synergistic control module configured to check for an overlap between the large area of the building and the small area of the building, to calculate a change in occupancy in the control zone based on the normalized coarse data in response to finding that there is no overlap, to calculate the change in occupancy in the control zone based on the normalized fine data in response to finding that there is overlap, and to generate the actuation plan for the control zone based on the change in occupancy in the control zone. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification