KR20020079106A - navigation system guiding shot-way and shot-time course for target point - Google Patents

Abstract

PURPOSE: A map data providing system guiding the shortest distance and the shortest time of a destination is provided, which enables a user to easily carry a compact mobile terminal with IMT-2000 technology. CONSTITUTION: According to a map data providing system providing information of the shortest distance of a destination by referring to a coordinate value as to a present position and stored road map data, an IMT-2000 cellular phone(70) requests path information of the shortest time and the shortest distance by selecting a specific destination for a user to go from the present position, and guides the present position and a travelling direction to the user through the received information. A satellite(10) tracks the present position of the IMT-2000 cellular phone. A GPS(Global Positioning System) receiver(20) receives the present position information of the IMT-2000 cellular phone tracked from the satellite. A traffic information providing center(30) provides the present traffic jam condition in real time. A map information DB(50) stores road map data. And an internet server(40) accepts a path information request signal of the shortest time and the shortest distance of a specific destination selected from the IMT-2000 cellular phone through a wireless transceiver(60), and judges the present position of the user by the GPS receiver, and calculates a plurality of paths of the shortest distance to the destination from the map information DB, and calculates a path of the shortest distance and the shortest time actually.

Description

Map data providing system for guiding the shortest distance and shortest time of the destination {navigation system guiding shot-way and shot-time course for target point}

The present invention relates to a map data providing system for guiding a destination. More particularly, the present invention relates to a shortest distance and a shortest time of a destination through an up-to-date digital map, a user's location, and current real-time road situation information using the Internet. It relates to a map data providing system.

1 is a map data providing system of a vehicle navigation apparatus disclosed in the patent publication of Korea Patent No. 0184810 (December 21, 1998).

As shown in the drawing, the conventional map data providing system includes a GPS receiver 13 which receives radio waves simultaneously from three different global positioning system (GPS) satellites 15 and calculates the longitude and latitude of the point, and a road map. The map data storage unit 12 storing the data, and the longitude and latitude data received by the GPS receiver 13 to process the current position of the vehicle on the map data provided from the map data storage unit 12. Compute the correlation between the vehicle navigation control unit 10 and the driving trajectory of the vehicle tracked from the GPS satellites 15 and the road map data provided from the map data storage unit 12, and the road having the highest correlation. Indicator for visually displaying the optimal road map to the current location and destination of the own vehicle and the map storage control unit 11 for correcting and calculating the position of the vehicle and providing the vehicle navigation control unit 10 to the vehicle navigation control unit 10. (19), an indicator controller 18 for controlling the driving of the indicator 19 according to the control of the vehicle navigation controller 10, and an initial position of selecting the map of the desired portion and the current vehicle on the displayed map. A key input unit 16 for setting a point and a direction to be moved is provided. In addition, the map data in the vehicle navigation system is stored in a map data storage unit 12 which is preferably implemented as a compact disk ROM (CD-ROM), which is based on a predetermined accumulation of topographic maps based on aerial photographs. Geographic information required for road driving and road management is numerically stored (digitized) as a two-dimensional coordinate value of (x, y).

However, since the conventional map data providing system cannot refer to the current real-time road situation information, even if searching the shortest distance on the street, it takes more time than the calculated distance on the map in the severe traffic region. There was a problem.

In addition, the conventional vehicle navigation apparatus has to be provided with a number of accessory means such as a compact disc ROM, so that the volume is increased, so that it is inconvenient to carry separately in addition to the vehicle.

Accordingly, the present invention is to solve the above-mentioned general problems, the object of the present invention is to use the Internet to refer to the latest digital map, the user's location and the current real-time road situation information to determine the shortest distance and the shortest time of the destination In addition to providing comprehensively, the present invention provides a map data providing system that guides the shortest distance and the shortest time to a destination for easy portability using a small terminal using IMT-2000 technology.

1 is a block diagram showing a map data providing system of a conventional vehicle navigation apparatus.

Figure 2 is a block diagram showing a map data providing system for guiding the shortest distance and the shortest time of the destination according to the present invention.

※ Explanation of code for main part of drawing

10: satellite 20: GPS receiver

30: Traffic information center 40: Internet server

50: map information DB 60: wireless transmitter / receiver

70: IMT-2000 terminal

A feature of the present invention for achieving the above object is a map data providing system for providing information of the shortest distance of a destination with reference to a coordinate value for a current location and stored road map data, wherein a user wants to go from the current location. An IMT-2000 terminal for selecting a specific destination to request route information of the shortest time and the shortest distance, and visually guiding a current location and a moving direction to the user through the received information; A satellite tracking a current position of the IMT-2000 terminal; A GPS receiver for receiving current location information of the IMT-2000 terminal tracked from the satellite; A traffic information providing center providing a current traffic jam in real time; A map information DB storing road map data; The route information request signal of the shortest time and the shortest distance of the specific destination selected from the IMT-2000 terminal is received through the wireless transmitter / receiver, the current position of the user is determined by the GPS receiver, and the information is extracted from the map information DB. The route of the shortest distance to the destination on the road map is calculated as a plurality of routes including a detour road and the like, and the current traffic jam provided by the traffic information providing center in real time is calculated on the route of the shortest distance calculated above. By linking, it is characterized by consisting of an Internet server that calculates the shortest distance route that actually takes the shortest time.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to the operation of the present invention having such a configuration in more detail as follows.

The terminal 70 of the present invention can be used when both walking or moving through the vehicle, but will be described here as an example of a normal vehicle operation.

First, the IMT-2000 terminal 70 selects a specific destination to go from the current position and requests the shortest time and the shortest distance route information.

The Internet server 40 receives the request signal transmitted from the IMT-2000 terminal 70 through the wireless transmitter / receiver 60.

Meanwhile, the current position of the IMT-2000 terminal 70 is always tracked through the satellite 10 and the GPS receiver 20.

Therefore, the Internet server 40 grasps the current location of the user by the GPS receiver 20 which receives radio waves simultaneously from three different satellites 10 and calculates the longitude and latitude of the point, and stores road map data. The route of the shortest distance to a destination is computed on the road map drawn out from the map information DB 50 currently carried out.

In this case, the shortest path is calculated as a primary route, a secondary route, and a tertiary route with reference to a bypass road and temporarily stored.

In addition, the Internet server 40 receives the current traffic jam situation (road speed, etc.) provided in real time from the traffic information providing center 30, and associates it with the shortest distance path calculated above, in fact, the shortest. Calculate the shortest path that takes time.

Thereafter, this information is provided in a map form to the user's terminal 70 via the wireless transmitter / receiver 60 to visually guide the user of the current location and direction of the vehicle.

On the other hand, in the present invention, since all data necessary for traffic information and map information are stored and updated on the Internet server, the user's terminal can be made extremely small by incorporating only essential functions such as a transmission / reception function. This becomes very easy.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

As described above, the present invention provides the shortest distance and the shortest time of the destination by referring to the latest digital map, the user's location, and the current real-time road information by using the Internet. By using the small terminal using the guide to guide the shortest distance and the shortest time to the destination, it provides a route that can actually arrive in the shortest time by bypassing the heavy traffic area, traffic information and maps Since all data necessary for information is stored and updated on the Internet server, the user's terminal is built in only essential functions such as a transmission / reception function, so that it can be made extremely small, so that it is very easy to carry and store.

Claims (2)

In the map data providing system for providing information of the shortest distance of the destination by referring to the coordinate value of the current location and the stored road map data, An IMT-2000 terminal 70 for requesting route information of the shortest time and shortest distance by selecting a specific destination that the user wants to go from the current location, and visually guiding the current location and the moving direction to the user through the received information; A satellite (10) for tracking the current position of the IMT-2000 terminal (70); A GPS receiver 20 for receiving current location information of the IMT-2000 terminal 70 tracked from the satellite 10; A traffic information providing center 30 providing a current traffic jam situation in real time; A map information DB (50) for storing road map data; The path information request signal of the shortest time and the shortest distance of the specific destination selected from the IMT-2000 terminal 70 is received through the wireless transmitter / receiver 60 and the current position of the user is grasped by the GPS receiver 20. And, the route of the shortest distance to the destination on the road map drawn from the map information DB (50) is calculated as a plurality of routes, including the detour road, and provided in real time from the traffic information providing center 30 By connecting the current traffic jam situation to the shortest route calculated above, the Internet server 40 for calculating the shortest route that actually takes the shortest time; Shortest distance and shortest destination Map data providing system to guide the time. The method of claim 1, wherein the Internet server (40); A map data providing system for guiding the shortest distance and the shortest time of a destination, wherein the data required for traffic information and map information are stored in real time and periodically updated.