JP2003090732A5

JP2003090732A5 -

Info

Publication number: JP2003090732A5
Application number: JP2001285036A
Authority: JP
Filing date: 2001-09-19
Publication date: 2004-07-22

Claims

A method for providing information on a guidance route to a communication-type navigation device by an information providing center having a traffic information management database for managing traffic information and performing a route search,
When receiving the current location information and the traffic information search request data on the guide route from the communication type navigation device, search the traffic information management database, and on the guide route ahead of the point specified by the current location information in the traveling direction. When the communication type navigation device is found, the communication type navigation device is notified, and upon receiving the re-search request data from the communication type navigation device, the communication type navigation device is provided with information on the guidance route for avoiding the traffic type obstacle.
An information providing method characterized by the following.

An information providing request method for the information providing center by a communication-type navigation device that performs route guidance based on information on a guidance route searched for at an information providing center,
When a notification of a traffic obstacle is received from the information providing center in response to the current location information transmitted to the information providing center and the traffic information search request data on the guide route, the information providing center sends the route of the guide route to avoid the traffic obstacle. Sending search request data
An information provision request method characterized by the following.

An information providing request method for the information providing center by a communication-type navigation device that performs route guidance based on information on a guidance route searched for at an information providing center,
When the current location is within a predetermined distance from a branch point on the guidance route, transmitting search request data for a route from the branch point to a destination to the information providing center.
A method for requesting information provision by a communication-type navigation device, comprising:

A communication type navigation device comprising a display unit and performing guidance based on information on a guidance route searched for at an information providing center,
The present location information and the traffic information request data are periodically transmitted to the information providing center, and when the traffic obstacle section information on the guide route is received from the information providing center, the traffic obstacle section information is displayed on the display unit. thing
Communication type navigation device characterized by the above-mentioned.

A method for providing information on a guidance route to the communication-type navigation device by an information providing center having a traffic information management database for managing traffic information and performing a route search in response to a request from the communication-type navigation device,
When receiving current location information and traffic information request data from the communication type navigation device during route guidance based on the provided guidance route-related information,
Reading traffic information including a section of a traffic obstacle occurring on a guidance route ahead of a point specified by the current location information from the traffic information management database, and providing the traffic information to the communication-type navigation device;
An information providing method characterized by the following.

A method for requesting information provision by a communication type navigation device to an information provision center for performing a route search,
When a destination is set by an operator of the communication-type navigation device, a confirmation screen is displayed as to whether or not to perform a return route search starting from the destination, and the operator performs a return route search. When the instruction is given, in addition to the outward route, the return route search request data is also transmitted to the information providing center.
An information provision request method characterized by the following.

A method for providing information to a communication type navigation device by an information providing center performing a route search,
When receiving the current location information, destination information and route search request data from the communication type navigation device, the communication type navigation device Inquires whether to also perform a return route search with the departure point and the current location as the destination, and if a return search request is received from the communication-type navigation device, performs a forward and return route search, and Sending information on the outbound and return directions to the communication type navigation device
An information providing method characterized by the following.