US 2019/0316801 A1 · BUILDING MANAGEMENT SYSTEM

Abstract

An environmental conditioning system for conditioning the environment of an occupiable region includes environmental conditioning hardware and a controller. The controller includes an occupancy module configured to receive ingress data associated with occupants entering the occupiable region for each of a first plurality of ingress iterations of a first prescribed time period. The controller further performs a first ingress rolling mean of the ingress data over the first plurality of ingress iterations, and compares at least the first ingress rolling mean to a first occupancy threshold. If the first occupancy threshold is exceeded by the first ingress rolling mean, the controller outputs a start command to the environmental conditioning hardware.

Claims20

Dependent claims

An environmental conditioning system for conditioning an environment of an occupiable region, the environmental conditioning system comprising:

environmental conditioning hardware constructed and arranged to condition the environment;
and
a controller including an occupancy module configured to receive ingress data associated with occupants entering the occupiable region for each of a first plurality of ingress iterations of a first prescribed time period, perform a first ingress rolling mean of the ingress data over the first plurality of ingress iterations, compare at least the first ingress rolling mean to a first occupancy threshold, and output a start command to the environmental conditioning hardware when the first occupancy threshold is exceeded by the first ingress rolling mean.

A method of operating an environmental condition system comprising:

receiving ingress and egress data;
dividing the ingress and egress data into a plurality of ingress and egress data segments each associated with a respective one of a plurality of time periods;
dividing each of the plurality of time periods into a plurality of time intervals;
dividing each of the ingress and egress data segments into a plurality of respective ingress and egress data sub-segments such that each of the plurality of ingress and egress data sub-segments is associated with a respective one of the plurality of time intervals;
subtracting each of an egress data sub-segment of the plurality egress data sub-segments from a respective one of the plurality of ingress data sub-segments to formulate a tabulation distribution;
comparing the tabulation distribution to occupancy and vacancy thresholds;
starting environmental conditioning hardware if the occupancy threshold is exceeded;
and
shutting down environmental conditioning hardware if the vacancy threshold is exceeded.

6 more elements

Dependencies are inferred from the claim text.

Building management system

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Building management system

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Abstract

Claims20