US 11,756,409 B2
Collaborative control of evacuation of a venue
Cristiano Colantuono, Anzio (IT); Antonio Perrone, Rome (IT); Angelina Ascone, Rome (IT); Anna Daniela Pellegrino, Rome (IT); and Aurelia Ceccarelli, Rome (IT)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Sep. 22, 2021, as Appl. No. 17/448,378.
Prior Publication US 2023/0090276 A1, Mar. 23, 2023
Int. Cl. G08B 25/01 (2006.01); G08B 7/06 (2006.01); G01C 21/20 (2006.01); H04W 4/90 (2018.01); G08B 27/00 (2006.01)
CPC G08B 25/016 (2013.01) [G01C 21/206 (2013.01); G08B 7/066 (2013.01); G08B 27/006 (2013.01); H04W 4/90 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method for controlling evacuation of a plurality of individuals carrying corresponding portable computing devices from a venue having a plurality of exits associated with corresponding exit computing devices, wherein the method comprises, under the control of the portable computing device of each of the individuals:
receiving, by the portable computing device, one or more of evacuation messages of wireless type each being transmitted by a source entity, being one of the exit computing devices or one of the portable computing devices, and comprising an origin identifier indicative of an origin one of the exits associated with an origin one of the exit computing devices from which the evacuation message originates and a hop number indicative of a number of hops of the evacuation message from the origin exit computing device through the portable computing devices;
selecting, by the portable computing device, an evacuation message of the received evacuation messages according to the hop number of the received evacuation messages; and
subscribing, by the portable computing device, to a directed exit being set to the origin exit of the selected evacuation message by:
outputting, by the portable computing device, a directing notice for directing an individual to evacuate the venue through the directed exit; and
transmitting, by the portable computing device, a propagation one of the evacuation messages being derived from the selected evacuation message by incrementing the hop number, the directing notice being at least partially perceivable by each following one of the individuals directed to evacuate the venue through the directed exit by the propagation evacuation message to cause a following individual to follow the individual towards the directed exit.