Traffic information distributing apparatus and traffic information distributing method

Abstract

In a case where a CPU 11 provided in an information distribution center 3 has received a request command for requesting predicted traffic information transmitted from a navigation apparatus 2 as well In a case where a CPU 11 provided in an information distribution center 3 has received a request command for requesting predicted traffic information transmitted from a navigation apparatus 2 as wellas vehicle information such as a navigator identifying ID, coordinate data of a vehicle position, or coordinate data of a destination, the CPU 11 searches a basic route based on update-purpose map infas vehicle information such as a navigator identifying ID, coordinate data of a vehicle position, or coordinate data of a destination, the CPU 11 searches a basic route based on update-purpose map information 14A, and sets a distribution range serving as a transmission target of traffic information 16A, 16B, and 16C. Then, the CPU 11 generates the predicted traffic information 16C such as congestiormation 14A, and sets a distribution range serving as a transmission target of traffic information 16A, 16B, and 16C. Then, the CPU 11 generates the predicted traffic information 16C such as congestion prediction information corresponding to the distribution range, extracts the predicted traffic information 16C of each link having a difference in the generated predicted traffic information 16C anon prediction information corresponding to the distribution range, extracts the predicted traffic information 16C of each link having a difference in the generated predicted traffic information 16C and the current traffic information 16A, and distributes the extracted predicted traffic information 16C to the navigation apparatus 2 together with a link ID of a corresponding link.d the current traffic information 16A, and distributes the extracted predicted traffic information 16C to the navigation apparatus 2 together with a link ID of a corresponding link.

Description

technical field [0001] The present invention relates to a traffic information distribution device and a traffic information distribution method that distribute traffic information according to a transmission request received from a navigation device installed in a vehicle. Background technique [0002] In recent years, various types of navigation apparatuses that receive traffic information from a Vehicle Information and Communication System (VICS, registered trademark) through radio wave beacons, optical beacons, or FM multiplex broadcasting have been disclosed. [0003] In addition, various types of traffic information distribution devices and traffic information distribution methods that distribute traffic information according to transmission requests received from navigation devices installed in vehicles have been proposed. [0004] In one example of the traffic information distribution device, in the case where a download request for downloading traffic information aro...

AI Technical Summary

Problems solved by technology

Therefore, there arises a problem that the amount of communication information increases unnecessarily, thereby causing the communication cost to become higher

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