SYSTEM FOR POSITIONING RADIO FREQUENCY TAGS IN A BUILDING FOR CONTROLLING EMERGENCY EVACUATION Russian patent published in 2022 - IPC H04W4/29 H04W4/90 G06K17/00 H04B1/3877 

FIELD: radio engineering.

SUBSTANCE: invention relates to tools for positioning objects based on radio frequency identification. System for positioning radio frequency tags in a building for controlling emergency evacuation, containing radio frequency tags receiving control codes and transmitting an identifier code, connected wirelessly with readers, transmitting the control codes and receiving the signals of tag identifier codes; wherein the server intended for wirelessly receiving the identifier codes of each tag and information on the location thereof from a reader is wirelessly connected via Internet with a mobile or stationary terminal apparatus of the supervisor, additionally comprises gateways located on each floor of the building; each tag is connected via a first-level radial radio channel with a reader within the room and with the readers of adjacent premises; readers located in each room of the building are connected via a second-level radial radio channel with the gateway of the floor, and the gateways are connected via a third-level radial radio channel with the server.

EFFECT: increase in the accuracy and promptness of locating and identifying tags in rooms of a building.

1 cl, 2 dwg