Patent ID: 9037398
Filing Date: 2015-05-19
Classification: G01C

Abstract:
1. A navigation server which provides information to a mobile body, by communicating with a navigation device that is configured to set a navigation route from a current position or a departure position to a destination position of the mobile body and is mounted on the mobile body, comprising: a support information storing element which receives and stores a discount information concerning discount conditions of tolls of toll roads expressed by traveling time zones and entrances and exits of the toll roads, from a predetermined information source; a support route searching element which searches for a support route from the current position or the departure position to the destination position of the mobile body, on the basis of a journey plan including the current position or the departure position and a current time or a departure time and the destination position of the mobile body, which is received from the navigation device, and a support map information read out from a predetermined storing element; a support information retrieving element which retrieves the discount information of the toll roads satisfying the discount conditions, on the basis of the current time or the departure time of the mobile body, and the support route searched by the support route searching element, from the support information storing element; and a support data transmitting element which transmits a discount notice data that is distinct from navigation information transmitted to the navigation device and is represented in text form comprising one or more entrances and exits of toll roads satisfying the discount conditions and junctions for the support route, which is capable of making the navigation device output at least a part of the discount information retrieved by the support information retrieving element, wherein the navigation device recognizes that a receipt of data in the text form does not trigger information arithmetic processing using a navigation map information stored in a navigation map storing unit possessed by the navigation device; wherein names of each of the entrances and the exits of the toll roads designated by the discount information of the discount notice data are capable of being recognized by the navigation device as transit point information.