Navigation system using wireless communication network and route guidance method thereof
First Claim
1. A navigation system provides a mobile terminal that processes a conventional call by bi-directional communication with a base station when a first mode is set, requests to an information center route guidance data to guide a vehicle, downloads the route guidance data regarding a vehicle from the information center, determines a notification message regarding at least one node point from a current position of the vehicle and guidance codes in the route guidance data, generates the notification message about the at least one node point referring to a database included therein, and outputs the notification message in a predetermined time period before the vehicle passes through the node point when a second mode is set.
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Abstract
There is provided a navigation system using a wireless communication system and a route guidance method thereof. In the navigation system, an information center searches out an optimum route between a present vehicle position and a destination referring to map data in its map database and generates route guidance data. A navigation terminal inside the vehicle calculates the present position of the vehicle, transmits the vehicle'"'"'s current position information to the information center, receives the route guidance data, and announces a notification message. A wireless communication network connects the information center to the navigation terminal wirelessly.
38 Citations
19 Claims
- 1. A navigation system provides a mobile terminal that processes a conventional call by bi-directional communication with a base station when a first mode is set, requests to an information center route guidance data to guide a vehicle, downloads the route guidance data regarding a vehicle from the information center, determines a notification message regarding at least one node point from a current position of the vehicle and guidance codes in the route guidance data, generates the notification message about the at least one node point referring to a database included therein, and outputs the notification message in a predetermined time period before the vehicle passes through the node point when a second mode is set.
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15. A mobile terminal that transmits data received from an information center by wireless communication to an ITS (Intelligent Transportation System) terminal, and transmits data received from the ITS terminal to the information center, comprising:
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an input portion for acting as a user interface for a route guiding service in a navigation mode selected by the user; a display for displaying route guidance data to guide a vehicle and information about a vehicle received from the ITS terminal; and a control portion for determining a notification message regarding at least one node point from a current position of the vehicle and guidance codes in the route guidance data, generating the notification message about the at least one node point referring to a database included therein, and outputting the notification message in a predetermined time period before the vehicle passes through the node point. - View Dependent Claims (16, 17, 18, 19)
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Specification