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|1. (WO2018056446) POSITION CALCULATING METHOD, DISTANCE CALCULATING METHOD, AND BEACON|
NTT DATA CORPORATION
KYOWA EXEO CORPORATION
|Title:||POSITION CALCULATING METHOD, DISTANCE CALCULATING METHOD, AND BEACON|
The objective of the present invention is to identify the position of a person or an object. In a position calculating method performed by a system including a plurality of beacons which are capable of communicating with one another within a prescribed radio wave reaching distance and which transmit a radio marker including self identification information, and a control device capable of communicating with the beacons: at least one of the plurality of beacons receives, from a terminal present in the radio wave reaching distance of the beacon, a first signal including terminal identification information identifying the terminal, measures the reception strength of the received signal, and transmits a second signal which includes the terminal identification information, the reception strength and beacon identification information identifying the beacon; and the control device receives the second signal from one of the plurality of beacons, and, on the basis of the position information of the beacon corresponding to the beacon identification information included in the second signal, and on the basis of the reception strength included in the second signal, calculates the position of the terminal corresponding to the terminal identification information included in the second signal.