Patent ID: 8164427

Claim:
A method for optimization in an RFID location recognition system using a blueprint which determines a location for arranging an RFID reader, the method comprising the steps of: inputting a blueprint and dividing a location recognition unit space from the blueprint; establishing a building interior space analysis model and an interior radio propagation space analysis model and deriving a building spatial significance and a radio propagation spatial significance; analyzing correlation between a building space and a radio propagation space and deriving a correlation coefficient; and defining an objective function for determining a location of a RFID reader based on the building spatial significance, the radio propagation spatial significance, and the correlation coefficient between the building space and the radio propagation space and performing optimization, wherein the step of establishing the building interior space analysis model comprises the steps of: analyzing a relation between a building interior space and a building exterior space for deriving an interior space graph model in which the building space is divided into a building interior and a building exterior; analyzing a relation between the stories of the building space for deriving the interior space graph model in which the building interior space is departmentalized into a space for each story; specifying the building space for each story for deriving the interior space graph model in which the building interior space for each story is specified as the location recognition unit space; and analyzing a movement route for revaluating worth of a node in which every available movement route of a tag is considered.