LOCATION STORAGE DEVICE, WIRELESS TERMINAL, LOCATION STORAGE SYSTEM, LOCATION REGISTRATION METHOD, LOCATION UPDATE METHOD AND PROGRAM

摘要

A position storage device includes: a storage unit (214) containing position information on a base station (30) performing radio communication with a radio terminal (40) which information is correlated to base station identifiers uniquely attached to the respective base stations; a reception unit which receives signal intensity information in which a signal intensity of a signal received from each base station by the radio terminal or information obtained from the signal intensity is correlated with the base station identifier of the base station which has transmitted the signal; a registration judging unit (222) which references the base station identifier registered in a storage unit and judges whether the base station identifier contained in the signal intensity information received by the reception unit is correlated with the position information in the storage unit; and a registration unit (226) which registers the base station identifier judged to be unregistered in the storage unit by the registration judging unit correlated with predetermined position information corresponding to the position of the radio terminal.