Patent ID: 7991774

Claim:
A method of managing position information of an object, comprising: using a plurality of detectors that are spaced from each other, at least one of the detectors detecting a mobile information storage medium attached to the object; receiving predetermined information from the detector, the predetermined information including identification information of the detector that is detecting the mobile information storage medium attached to the object and information indicating a signal strength of a signal from the mobile information storage medium; judging whether two or more of the detectors detect the mobile information storage medium; calculating position information of the object based on position information of detectors that are detecting the mobile information storage medium and signal strengths of signals from the mobile information storage medium; generating notification information by, based on the predetermined information, obtaining one or a plurality of pieces of information specified by notification type information from notification rule information stored in a storage unit, the notification information including position information of the object based on an application or a process designated as a destination, wherein in generating the notification information, one or a plurality of pieces of information, which is information obtainable when the comparison target information obtained based on the predetermined information satisfies a condition defined by the notification condition information in the notification rule information, in which the transmission destination information, the notification type information, and the notification condition information defining a condition for notifying the application or the process are retained in association with each other, according to a correspondence with comparison target information and is specified by the notification type information associated with notification condition information is obtained based on the predetermined information, thereby generating notification information from obtained information; and notifying by transmitting the notification information to a transmission destination specified by the transmission destination information associated with the notification type information that is used when the notification information is generated, after subjecting the notification information to encryption processing defined for each transmission destination, wherein the storage unit stores transmission destination information for the application or the process, the transmission destination information being associated with the notification type information indicating a type of information to be notified to the application or the process.