Property management apparatus, property management method, and property management system

摘要

In the present invention, any change of devices in possession by a user who gets on or gets off, for example, a vehicle is detected by comparing the devices detected by wireless communication at the time of getting on or getting off, thereby enabling to easily and surely prevent any personal belongings of the passenger from losing or leaving without constantly monitoring them. The property management apparatus sums up in time series the detection results by the plurality of property detection apparatus for notifying the place where the user loses the property.