US 11,668,572 B2
Systems and methods for generating indoor paths
Joseph McEvoy, Cork (IE); Matthew Breed Myung-Sun Scott, Cork (IE); and Michael Gerard Cronin, Crosshaven (IE)
Assigned to JOHNSON CONTROLS TYCO IP HOLDINGS LLP, Milwaukee, WI (US)
Filed by Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed on Mar. 2, 2021, as Appl. No. 17/189,871.
Claims priority of provisional application 62/985,225, filed on Mar. 4, 2020.
Prior Publication US 2021/0278219 A1, Sep. 9, 2021
Int. Cl. G01C 21/20 (2006.01); G01C 21/00 (2006.01); H04W 4/80 (2018.01); H04W 4/029 (2018.01)
CPC G01C 21/206 (2013.01) [G01C 21/383 (2020.08); G01C 21/3848 (2020.08); H04W 4/029 (2018.02); H04W 4/80 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method for generating paths in a building space, the method comprising:
retrieving, by a processing circuit, a heatmap for the building space, the heatmap comprising a plurality of grid locations, wherein the plurality of grid locations correspond to locations in the building space and comprise occupant density data of the locations in the building space;
generating, by the processing circuit, a plurality of vectors, the plurality of vectors defined by a first grid location and a second grid location of the plurality of grid locations, wherein generating the plurality of vectors comprises comparing occupant density data for the first grid location to occupant density data for the second grid location;
determining, by the processing circuit, a subset of vectors from the plurality of vectors based on a proximity of the plurality of vectors to a selected vector of the plurality of vectors;
combining, by the processing circuit, the subset of vectors to generate a merge location, wherein the merge location is used to adjust at least one of the first grid location or the second grid location of at least one vector in the subset of vectors; and
at least one of controlling building equipment that serve the building space or providing navigation directions to a user device based on a path generated from at least one vector of the subset of vectors.