POSITION MEASURING METHOD, POSITION MEASURING PROGRAM AND RADIO APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a position measuring method, a position measuring program and a radio apparatus capable of improving the measurement accuracy of a present position positioned in a place where GPS signal is hardly transmitted.SOLUTION: Each of radio apparatuses 200 transmits a radio signal including a piece of identification information for identifying the radio apparatus 200. A reception terminal 300 receives the radio signal transmitted from the radio apparatus 200. A position information management server 500 acquires a piece of radio wave information associating the identification information included in the radio signal with a radio wave intensity of the radio signal, and determines the position the reception terminal 300 by using the acquired radio wave information. The radio apparatus 200 includes an antenna 250 that transmits a radio signal having the directivity in a direction toward floors.