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Navigation system, user terminal, navigation device, and information recording method program

A technology for a navigation system and a navigation device, applied in the field of navigation systems, can solve the problems of increasing the load, long time, and increasing the power of the navigation device, and achieve the effect of reducing the applied

Inactive Publication Date: 2008-11-12
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the navigation device of the above-mentioned prior art, the time required for transmitting the route guide data to the navigation device (hereinafter referred to as "communication time") is long, and the navigation device must be powered on during this time, so the navigation time is increased. The power consumed by the device greatly increases the load on the battery mounted on the vehicle

Method used

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  • Navigation system, user terminal, navigation device, and information recording method program
  • Navigation system, user terminal, navigation device, and information recording method program
  • Navigation system, user terminal, navigation device, and information recording method program

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Embodiment Construction

[0067] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0068] FIG. 1 shows a block diagram of a navigation system in a first embodiment of the present invention.

[0069] In the figure, 61 represents a personal computer as a user terminal, and 62 represents an information center as an information provider. Then, the information center 61 opens a website for providing navigation data representing navigation information on a server of a designated provider.

[0070] In addition, 14 denotes a navigation device as an in-vehicle device mounted on a vehicle, and the navigation device 14 includes a navigation processing unit 17, a data recording unit 16 as an information recording unit, a communication unit 38, and the like. The above-mentioned navigation device 14, network 43, personal computer 61, information center 62, etc. constitute a navigation system.

[0071] The personal computer 61 includes a CPU 71 as an arithmetic...

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Abstract

A navigation system, a user terminal, a navigation device (14), and an information recording method program that can reduce communication time. The system comprises compression means for compressing at least one of a plurality of sets of information generated by dividing the information based on priority, to create compressed data and compressed data transmission means for transmitting the compressed data to the navigation device (14). In this case, because the compressed data is created by compressing, based on the priority, at least one of a plurality of sets of information generated by dividing the information based on the priority, the communication time can be reduced. Therefore, the battery load is reduced.

Description

technical field [0001] The present invention relates to a program of a navigation system, a user terminal, a navigation device, and an information recording method. Background technique [0002] In conventional navigation devices, for example, GPS (Global Positioning System) detects the current position of the vehicle, that is, the current location, and at the same time detects the vehicle's orientation, That is, the vehicle orientation, the map data is read from the data recording unit, a map screen is formed on the display of the display unit, and the current location, the surrounding map, and the vehicle orientation are displayed on the map screen. Therefore, the driver, who is the operator, can drive the vehicle based on the current location, the surrounding map, and the direction of the vehicle displayed on the above-mentioned map screen. [0003] Furthermore, if the driver sets a destination and sets search conditions, a route from the current location to the destinat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00G08G1/137G01S19/19G01C21/26G01S19/48G08G1/0968
CPCG08G1/096811G01C21/32G08G1/096872G01C21/34G08G1/096888G01C21/3889G01C21/3896G08G1/0968
Inventor 山田邦博小川智
Owner AISIN AW CO LTD