KR0184810B1 - Map data providing system for car navigation system - Google Patents

Abstract

The present invention relates to a vehicle navigation apparatus, and more particularly, to a system for providing map data of a vehicle navigation apparatus, which is capable of being provided with the latest digital map, current road conditions and travel information using the Internet.

To this end, the present invention collects the coordinate value of the current location point of the own vehicle and match it to the road map data stored as two-dimensional coordinate value and then display on the display screen, the latest map information and traffic information A key input unit configured to receive an Internet connection from a driver and information to be provided from the Internet, and when a connection signal of the Internet is input by a driver, transmitting location information of the vehicle to the Internet, and The data transmitting / receiving unit receiving the desired information and the previously stored map data are updated with the map data received from the data transmitting / receiving unit, and the current position of the own vehicle is updated by processing the longitude and latitude data of the current position point of the own vehicle. Vehicle navigation control unit 10 to match on the map data and display on the display device And a.

Description

Guidance data providing system of vehicle navigation system

The present invention relates to a vehicle navigation apparatus, and more particularly, to a system for providing map data of a vehicle navigation apparatus, which is capable of being provided with the latest digital map, current road conditions and travel information using the Internet.

In general, the conventional vehicle navigation system, as shown in the configuration shown in Figure 1, GPS receiving three or more different GPS (Global Positioning System) satellite (15) at the same time to calculate the longitude and latitude of the point The receiver 13 calculates the optimum route to the current location and the destination of the own vehicle, matches the calculated current location on the road map drawn from the map data storage unit 12 storing the road map data. It is to display on the display unit 19, such as implemented by the LCD through the display control unit 17 to visually guide the driver of the current position and direction of the vehicle. In addition, in such a vehicle navigation system, the user can enlarge and reduce the road map displayed on the indicator 19 through a predetermined key operation provided in the key input unit 16, and at the same time set the current position or the destination of the own vehicle and Keys to scroll the map screen.

In this configuration, the map data storage unit 12 is implemented as a compact disk (CD-ROM), and the map data stored in the compact disk is based on the topographical map of a predetermined scale ratio based on the aerial photograph. Geographical information on roads, road driving and road management is digitized.

However, the digital map data stored on the compact disc of the conventional vehicle navigation system does not include information on new roads or recent road conditions. To use the latest road map data, the map data updated by the user every time is used. You must buy a new compact disc with the latest version.

In addition, it is difficult for digital map data makers to modify and supplement map data that changes due to constraints such as production and sales in real time, and produce and sell compact discs with updated map data only after a certain period of time. Doing. Therefore, in practice, there have been many limitations on the timely use of the latest map data by the user.

Accordingly, an object of the present invention is to provide a map data providing system for a vehicle navigation apparatus, which allows the user to use the latest road map data in a timely manner according to a user's needs. .

1 is a control block diagram showing a configuration of a conventional vehicle navigation apparatus,

2 is a control block diagram showing the configuration of a map data providing system of a vehicle navigation apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

10: vehicle navigation control unit 11: map storage control unit

12: map data storage unit 13: GPS receiver

14: GPS antenna 15: GPS satellites

16: key input unit 17: temporary data storage unit

18: indicator control unit 19: indicator

20: Internet 21: data transmission and reception unit

In order to realize the above object, the map data providing system of the vehicle navigation apparatus according to the present invention collects coordinate values of the current position of the own vehicle, matches them with road map data stored as two-dimensional coordinate values, and displays them on the display screen. In a vehicle navigation system,

The Internet including the latest map information and traffic information, a key input unit for selecting the connection of the Internet from the driver and the information to be provided from the Internet, and the location information of the vehicle on the Internet when the driver inputs the Internet connection signal. A data transmission / reception unit for receiving desired information from the Internet, updating previously stored map data with map data received from the data transmission / reception unit, and processing longitude and latitude data for the current location point of the vehicle. And a vehicle navigation control unit 10 for matching the current position of the host vehicle on the updated map data and displaying it on the display.

Hereinafter, the configuration and the effect according to the preferred embodiment of the present invention will be described in detail.

First, the map data providing system of the vehicle navigation apparatus according to the present invention is the same as the block diagram shown in FIG. First, as in the conventional vehicle navigation system, 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 road map data The map data storage unit 12 and the longitude and latitude data received by the GPS receiver 13 are processed to match the current position of the host vehicle on the map data provided from the map data storage unit 12. The vehicle navigation control unit 10 calculates a correlation between 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 calculates the correlation between the vehicle on the road having the highest correlation. A 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, an indicator 18 for visually displaying an optimal road map to the current position and destination of the own vehicle, and a vehicle port. Under the control of the control unit 10, the display unit 17 for controlling the driving of the display unit 18, a map of a desired portion is selected, and the initial point where the host vehicle is currently located on the displayed map and the direction to be moved. A key input unit 16 to be set is provided.

In addition, the map data providing system of the vehicle navigation apparatus according to the present invention, the Internet containing a large amount of digital map data and traffic information, and various digital maps and traffic existing on the Internet by receiving the control signal of the vehicle navigation control unit A data transmission and reception unit for attempting to connect to the Internet for receiving information and a data storage unit for storing data received from the Internet by the data transmission and reception unit.

In such a configuration, the key input unit 16 includes an enlargement / reduction key of a map screen, a scroll key for moving the map screen forward and backward, and a left and right direction, a reset key for resetting the system when the system is inoperable, and on the Internet. Internet information providing key for receiving digital map or traffic information.

On the other hand, the map data in the vehicle navigation apparatus according to the present invention is stored in the map data storage unit 12, which is preferably implemented as a compact disk ROM (CD-ROM), which includes a predetermined accumulation based on aerial photographs. Based on the topographical map of, geographic information required for road driving and road management is digitized (digitized) and stored as two-dimensional coordinate values of (x, y).

The operation of the map data providing system of the vehicle navigation apparatus according to the present invention having such a configuration will be described in detail below.

First, when the vehicle is running, power is applied to the vehicle navigation system, and the vehicle navigation controller receives GPS waves simultaneously from three different GPS (Global Positioning System) satellites 15 to calculate the longitude and latitude of the spot. The receiver 13 calculates the optimum route to the current location and the destination of the own vehicle, matches the calculated current location on the road map drawn from the map data storage unit 12 storing the road map data. It is displayed on the display 18 implemented by the LCD or the like through the display control unit 17 to visually guide the driver of the current position and direction of the vehicle. In addition, in such an automatic navigation system, the user can enlarge and reduce the road map displayed on the indicator 18 through a predetermined key operation provided in the key input unit 16, and at the same time set the current position or the destination of the own vehicle, and Keys for scrolling the map screen of the (scroll) is provided.

On the other hand, when the vehicle navigation controller 10 determines that the driver wants to receive digital maps and traffic information from the Internet 20 by turning on the Internet information providing key provided in the key input unit 16 while the vehicle navigation apparatus is in use. In addition, the data transmission and reception unit 21 is connected to the Internet 20. In addition, the driver selects a map corresponding to the own vehicle position or a map corresponding to the destination by a plurality of key manipulations provided in the key input unit 16 while being connected to the Internet 20, and the driver selects a map corresponding to the region where the own vehicle is currently located. When the map data or traffic information is to be provided, the current location data of the own vehicle is transmitted on the Internet 20 through the data transmission / reception unit 21. Afterwards, the driver receives map data and traffic information for updating the map data stored in the current map data storage unit 12 through the data transmission / reception unit 21 from the Internet 20, and stores the temporary data storage unit 17 therein. After storing in the map data storage unit 12 compares the digital map stored in the current location of the map is updated. In addition, the vehicle navigation controller 10 displays the updated digital map on the display screen 19 so that the driver can be provided with the updated latest map and traffic information.

As described above, a map stored on a CD-ROM of a map data storage unit receives map data and traffic information existing on the Internet by a predetermined data transmission / reception means by the map data providing system of the vehicle navigation apparatus according to the present invention. The new map data can be provided to the driver by updating the data, thereby real-time providing the map data. In addition, the driver can search and use various information other than the map data, thereby satisfying the needs of the driver.

Claims (1)

In the vehicle navigation system to collect the coordinate value of the current position point of the own vehicle and match it to the road map data stored as a two-dimensional coordinate value and then display it on the display screen, Internet with up-to-date map information and traffic information, A key input unit which receives a driver's connection to the Internet and information to be provided from the Internet; A data transmission / reception unit for transmitting the position information of the own vehicle to the Internet when a driver inputs an internet connection signal, and receives the desired information from the Internet; The map data stored in advance is updated with the map data received from the data transmitting / receiving unit, and the longitude and latitude data of the current position point of the vehicle is processed to match the current position of the vehicle on the updated map data and displayed on the display. Guidance data providing system for a vehicle navigation system, characterized in that it comprises a vehicle navigation control unit (10).