Position information transfer apparatus and method

A technology for location information and sending devices, applied in measuring devices, educational tools, special data processing applications, etc., can solve the problem that the secondary grid is not always effective

Inactive Publication Date: 2004-06-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the secondary grid is not always effective in extrac

Method used

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  • Position information transfer apparatus and method
  • Position information transfer apparatus and method
  • Position information transfer apparatus and method

Examples

Experimental program
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Embodiment Construction

[0055] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0056] As an embodiment of the positional information transmission device and method thereof according to the present invention, the configuration and operation of a vehicle navigation device for transmitting and displaying traffic information from a traffic information providing system to a vehicle device will be described.

[0057] First, the embodiment will be described with reference to FIG. 1 . FIG. 1 shows an example of the block definition of the information providing area in this embodiment.

[0058] The vehicle navigation device compatible with the traffic information providing system transmits traffic information such as traffic congestion and traffic accidents as event information from the center device of the traffic information providing system, receives this information on the vehicle device, and compares this event information with the information owned b...

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Abstract

The entire block of the transmission area of information such as shape vector data representing road shape and event information is divided into partitions of a plurality of layers and block definition is made so that the data amount in each partition is approximately equal. The transmitting side generates and transmits shape vector data, event information, shape vector index data including reference data indicating correspondence between the block definition and each partition, and a shape vector list indicating shape vector data contained in each partition. The receiving side calculates partitions necessary for processing and extracts shape vector data contained in the partitions based on the shape vector index data and the shape vector list, then performs shape matching of the extracted shape vector data and identifies the section and the position in the section on the map to which the event information corresponds.

Description

technical field [0001] The present invention relates to a location information sending device and method, used for sending information to a mobile terminal, the information is shape information and related information. The road shape information represents map information. The relevant information includes event information associated with shape information and location information of the event, ie, traffic congestion, accident, and the like. The device and method are used, for example, in traffic information providing systems and map information providing systems. Background technique [0002] In recent years, more and more on-board navigation devices for displaying maps and traffic information around a current location have been put into practical use. The car navigation device maintains a digital map database, and is capable of displaying a map around the vehicle on a screen and displaying driving tracks and results of searching for a route to a destination on a screen ...

Claims

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Application Information

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IPC IPC(8): G09B29/00G01C21/00G01C21/30G06F17/30G08G1/0962G08G1/0969G09B1/02G09B11/00G09B17/00G09B19/02G09B23/02G09B29/10
CPCG09B23/02G01C21/30G09B17/00G08G1/096827G09B1/02G08G1/0962G09B11/00G09B19/02G08G1/0969
Inventor 足立晋哉
Owner PANASONIC CORP
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