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Guide route distribution device and guide route distribution method

A technology for guiding routes and distributing devices, applied in road network navigators, services based on location information, traffic control systems for road vehicles, etc., can solve the problem of reducing the amount of communication data, and achieve the effect of reducing the amount of communication data

Inactive Publication Date: 2010-09-01
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In detail, if there is a difference between the routes as a result of comparing the route search based on the map data of the PND with the route search based on the latest map data of the server, only the information corresponding to the difference is transmitted from the server to the PND. Map data, reducing the amount of communication data

Method used

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  • Guide route distribution device and guide route distribution method
  • Guide route distribution device and guide route distribution method
  • Guide route distribution device and guide route distribution method

Examples

Experimental program
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Effect test

no. 1 example

[0034] 1-1. Navigation system configuration

[0035] Such as figure 1 As shown, the navigation system 1 according to the embodiment of the present invention includes a PND 2, a plurality of radio access points 3 (3a, 3b, 3c, ...), and a route search server 4.

[0036] When the PND 2 is wirelessly connected to any one of the plurality of radio access points 3, the PND 2 is connected to the path search server 4 via the radio access point 3 and the Internet NT.

[0037] The bracket 5 is mounted on the dashboard of the vehicle via the suction cup 5A, and is electrically connected to the battery of the vehicle.

[0038] The PND 2 can be attached to or detached from the bracket 5, and is supported by the bracket 5 when attached, so that the PND 2 and the bracket 5 are connected mechanically or electrically.

[0039] Therefore, the PND 2 is operated by the power supplied from the battery of the vehicle via the cradle 5, and is operated in an independent state by the power supplied from the bui...

no. 3 example

[0187] in figure 1 In the navigation system 1 of the third embodiment shown in, the PND 2 and the route search server 4 are configured similarly to the first embodiment. The route search process RT1 executed by the PND 2 and the route search server 4 (such as Figure 4 Shown in) is the same as in the first embodiment.

[0188] In the third embodiment, the navigation processing procedure RT2 when the PND 2 performs navigation is the same as the first embodiment.

[0189] When the distribution of the guidance route information to the PND 2 is executed, the route search server 4 of the third embodiment executes Picture 11 The guide route information distribution processing procedure RT6 of the third embodiment shown in, instead of Figure 7 The guide route information distribution processing procedure RT3 of the first embodiment shown in FIG.

[0190] 3-1. Guide route information distribution processing

[0191] When the guidance route information distribution processing procedure RT6 ...

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Abstract

The invention discloses a guide route distribution device and a guide route distribution method. The guide route distribution device includes a reception unit which receives information indicating a start point, information indicating a destination, map data generation information, and route search program generation information from an on-vehicle terminal, a storage unit, a first route search unit which searches for a first route, a second route search unit which searches for a second route, a comparison determination unit which compares the first route and the second route and determines whether a predetermined guide route update condition is satisfied, and a transmission unit which transmits the second route to the on-vehicle terminal only when the guide route update condition is satisfied.

Description

Technical field [0001] The present invention relates to a guide path distribution device and a guide path distribution method, for example, it is suitably applied to a vehicle navigation device. Background technique [0002] In the prior art, car navigation systems have been widely used for portable navigation devices (hereinafter referred to as personal navigation devices (PND)) as on-vehicle terminals installed in vehicles Route search is performed on the map data. [0003] Recently, a vehicle navigation system is provided for communicating with a server outside the vehicle connected via the Internet and enabling the PND to guide a route using a route search result acquired from outside the vehicle through communication. [0004] In any of the above-mentioned vehicle navigation systems, since actual roads or buildings change every day, if a route search is performed based on the map data of the PND, the PND preferably has the latest possible map data. [0005] At this point, the PN...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04L29/08G01C21/26G01C21/34
CPCG01C21/34G01C21/32G08G1/096816G08G1/096838G08G1/096866G01C21/3859
Inventor 宫田洋昌
Owner SONY CORP
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