Operating heating, ventilation, and air conditioning systems using occupancy sensing systems

A system, comprising:

• a plurality of variable air volume (VAV) devices of a heating, ventilation, and air conditioning (HVAC) system installed in a building, where the plurality of VAV devices were installed in the building by a first entity over a first timeframe associated with a construction of the building;
• a plurality of fixtures of an occupancy sensing system installed in the building, where the plurality of fixtures of the occupancy sensing system were installed in the building by a second entity over a second timeframe associated with a subsequent retrofitting of the building;
• and
• a computing device including a processor and a memory having instructions stored thereon which, when executed by the processor, cause the processor to:
• receive building information, wherein the building information includes:
• information defining a plurality of spaces of the building;
• occupancy sensing system information describing a location of each of the plurality of fixtures with respect to a representation of the building;
• and
• HVAC system information describing a relationship between the plurality of spaces and the plurality of VAV devices;
• create a mapping between a space of the plurality of spaces, a fixture of the plurality of fixtures, and a VAV device of the plurality of VAV devices based on the building information;
• and
• modify an operation of the VAV device based on the mapping and responsive to a determination of occupancy in the space by the fixture.

A method of operating a heating, ventilation, and air conditioning system using an occupancy sensing system, comprising:

• receiving space information defining a plurality of spaces of a building;
• receiving occupancy sensing system information as an image file describing a location of each of a plurality of fixtures of an occupancy sensing system installed in the building with respect to a representation of the building;
• and
• receiving heating, ventilation, and air conditioning (HVAC) information describing a relationship between the plurality of spaces and a plurality of variable air volume (VAV) devices installed in the building, where the HVAC information and the space information are received from a building information model (BIM) associated with the building;
• creating a mapping between a space of the plurality of spaces, a fixture of the plurality of fixtures, and a VAV device of the plurality of VAV devices based on the space information, the occupancy sensing system information, and the HVAC information;
• and
• modifying an operation of the VAV device based on the mapping and responsive to a determination of occupancy in the space by the fixture.