KR19990011340A - Internet information retrieval device and method in vehicle navigation system - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internet information retrieval apparatus in a vehicle navigation system. In particular, the present invention provides a map of geographic information on a vehicle's current location, major branching points, and major constructions by GPS signals, bearing signals, vehicle speed signals, and map data. A vehicle navigation system that corresponds to coordinates and displays the resulting geographic information on a display, comprising: a command input unit for setting an Internet information search mode and inputting a search command for desired geographic information; A transmission / reception unit for transmitting a search command for desired geographic information to an Internet server and receiving geographic information searched by the Internet server; A modulation / demodulator for modulating a search command for the desired geographic information and demodulating the geographic information received by the transceiver; And calculating geographic information on the current position of the vehicle, the main branch point of the road, and the main constructions based on the GS signal, the direction signal, the vehicle speed signal, and the map data provided from the vehicle navigation system. And a control unit which matches the geographic information demodulated by the modulation and demodulation unit on a map coordinate and controls the display unit to display the matched geographic information. Therefore, in the present invention, by adding the Internet information search function to the vehicle navigation system, it is possible to receive services in real time, such as changed or new geographic information registered on the Internet.

Description

Internet information retrieval device and method in vehicle navigation system

The present invention relates to an internet information retrieval apparatus and method in a vehicle navigation system, and in particular, by adding an internet information retrieval function to a vehicle navigation system, a vast amount of geographic information and changed or new geographic information can be serviced in real time. The present invention relates to an internet information retrieval apparatus and method in a vehicle navigation system.

In general, the vehicle navigation system serves as a vehicle driving guide by displaying geographic information such as the current position of the vehicle and the target route according to the driver's request.

FIG. 1 is a schematic block diagram illustrating a conventional vehicle navigation system. As shown in FIG. 1, a navigation system main body 100 and a peripheral device 200 are largely divided.

The navigation system main body 100 includes a global positioning system (GPS) receiver 101 for receiving a location information signal of a vehicle, a first interface 102 for interfacing signals provided from a plurality of sensors, and map data storage. A second interface 104 for interfacing the map data read out from the medium, a display processor 106 for outputting a drive signal for display, an audio output driver 108 for outputting an audio drive signal for audio reproduction, and , A system control unit 110 in charge of controlling the overall system.

Meanwhile, the peripheral device 200 includes an orientation sensor 201 for detecting a direction in which the vehicle travels, a speed sensor 202 for detecting the speed of the vehicle, and a brake switch 204 turned on according to the operation of the brake. And a CD-ROM (206) for storing map data, a display monitor 208 for displaying required geographic information, and a speaker 210 for outputting geographic information by voice.

A general description of the operation of the vehicle navigation system configured as described above is as follows.

Referring to FIG. 1, in the operation mode, the system controller 110 may detect the position information signal of the vehicle transmitted via the GPS receiver 101, the direction sensor 201, the speed sensor 202, and the brake switch 204, respectively. The current position of the vehicle is detected from the position information signal of the vehicle, which is detected by the sensor interface unit 102, and the map data corresponding to the current position of the vehicle is read from the map data storage unit 206. Then, the display processor 106 is controlled to display the geographic information based on the read map data on the display monitor 208. Geographic information at this time is information about the target path of the vehicle, the junctions of the main roads and the constructions.

In the prior art as described above, a CD-ROM disc currently commercially used as the map data storage unit 206 is mainly used, and only the CD-ROM disc is used for information retrieval. Normally, such a CD-ROM disc can contain information with a maximum recording capacity of about 600 megabytes (MB), and thus there is a limit to using necessary information from this recording medium. In particular, the prior art has a problem that can be economically burdened because the information is available only when a new CD-ROM disk upgraded with respect to new information or changed information.

An object of the present invention is to add the Internet information search function to the vehicle navigation system to solve the above problems, vehicle navigation that can receive new geographic information and a vast amount of geographic information in real time without upgrading the map disk An apparatus and method for retrieving Internet information in a system are provided.

In order to achieve the above object, the apparatus of the present invention maps the geographic information of the current position of the vehicle, the main branching point of the road, and the main building by the GPS signal, the direction signal, the vehicle speed signal, and the map data and the like, and the result. In a vehicle navigation system for displaying the geographic information to the display unit,

A command input unit for setting an Internet information search mode and inputting a search command for desired geographic information; A transmission / reception unit for transmitting a search command for desired geographic information to an Internet server and receiving geographic information searched by the Internet server; A modulation / demodulator for modulating a search command for the desired geographic information and demodulating the geographic information received by the transceiver; And calculating geographic information on the current position of the vehicle, the main branch point of the road, and the main constructions based on the GS signal, the direction signal, the vehicle speed signal, and the map data provided from the vehicle navigation system. And a control unit which matches the geographic information demodulated by the modulation and demodulation unit on a map coordinate and controls the display unit to display the matched geographic information.

In order to achieve the above object, the method of the present invention maps the geographic information of the current position of the vehicle, the main branching point of the road, and the main construction by the GPS signal, the direction signal, the vehicle speed signal, and the map data and the like, and the result. A vehicle navigation system displaying displayed geographic information on a display unit, the vehicle navigation system comprising: determining an internet information search mode; In the Internet information search mode, modulating a search command for desired geographic information and transmitting it to an Internet server; Receiving and demodulating geographic information retrieved by an Internet server after the transmitting step; Matching geographic information demodulated in the demodulation step with geographic information provided from a vehicle navigation system on map coordinates; And displaying the matched geographic information on the display unit.

1 is a block diagram illustrating a conventional conventional vehicle navigation system.

2 is a block diagram illustrating a vehicle navigation system to which an Internet information retrieval function is added according to the present invention;

3 is a flowchart illustrating a navigation system to which an Internet information retrieval function is added according to the present invention.

* Explanation of symbols for the main parts of the drawings

One; Command input unit 2; Internet server

4; Transmit and receive antenna 6; Transceiver

8; Variation modulation unit 10; Vehicle navigation system

12; A controller 14; Display part

14a; Display driver 14b; Display monitor

16; Audio output section 16a; Audio output driver

16b; speaker

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a navigation system to which an Internet information retrieval function is added according to the present invention. As shown in FIG. 2, a current position of a vehicle may be represented by a GPS signal, a direction signal, a vehicle speed signal, and map data. In a vehicle navigation system in which geographic information on major road junctions and major constructions of a road are mapped to map coordinates, and the resulting geographic information is displayed on the display unit 14, an Internet information search mode is set and desired geographic information is set. A command input unit (1) for inputting a search command to the Internet, and a transmission / reception unit for transmitting a search command signal for desired geographic information to the Internet server (4) and receiving a geographic information signal retrieved by the Internet server ( 6) and a modulation / demodulation unit 8 for modulating a search command signal for the desired geographic information, and for demodulating the geographic information received by the transmission / reception unit 6, and modulation / demodulation. A control unit 12 for controlling the display unit 14 to match the geographic information demodulated by (4) with the geographic information provided from the vehicle navigation system 10 on a map coordinate, and to display the matched geographic information. It consists of.

Referring to FIG. 3 with reference to a flowchart for the overall operation of the embodiment configured as described above is as follows.

Referring to FIG. 2, according to an embodiment of the present invention, the controller 12 determines whether the Internet search mode or the normal operation mode is selected according to the selection of the search mode switch for searching the Internet information provided in the command input unit 1. (First step).

As a result of the determination in the first step, if the apparatus of the present invention is in the normal operation mode, the vehicle navigation system 10 is activated, and thus the vehicle navigation system 10 receives a GPS signal, a vehicle speed signal, and an azimuth. The position information signal of the vehicle by the signal, the map data and the signal according to the brake operating state is provided to the controller 12. Then, the control unit 12 maps the geographic information of the current position of the vehicle, the main branch point of the road, and the main building to the map coordinates based on the signals and data, and displays the excess geographic information on the display unit 14. .

On the other hand, when the search mode switch is turned on, the control unit 12 sets the Internet search mode, and spreads the Internet information search tool (Tool) implemented in software on the display monitor 14a of the display unit 14, Then, according to the instructions of the Internet information search tool, the geographic information that the user wishes to search, for example, enters a local Samsung car A / S center through the command input unit 1 by text or voice. The controller 12 forms a data stream signal based on a predetermined communication protocol in response to a search command input through the command input unit 1, and provides the demodulation unit 8 to modulate the data stream signal. . The signal modulated by the modulation and demodulation section 8 is then transmitted toward the Internet server 2 via the transmission and reception section 6 and the transmission / reception antenna 4 (second step).

After the second step, the Internet server 2 searches for geographic information registered on the Internet in response to a transmission signal of the transceiver 6 to find desired geographic information, and transmits and receives the retrieved geographic information as an information retrieval request side. Transmit to section 6. The geographic information received by the transmission and reception section 6 is demodulated by the modulation and demodulation section 8 and then provided to the control section 12 (fourth step).

After the fourth step, the control unit 12 matches the geographic information provided from the vehicle navigation system 10 with the geographic information retrieved by the Internet server 2 on a map coordinate, and displays the matched geographic information. The display unit 14 is controlled. That is, the controller 12 controls the display driver 14a so that the matched geographic information is displayed on the display monitor 14b.

In addition, the controller 12 controls the audio output unit 16 so that the matched geographic information is provided as voice. That is, the controller 12 controls the audio output driver 16a so that the matched geographic information is reproduced as voice through the speaker 16b.

While specific embodiments of the present invention have been described so far, changes and modifications may be made therein without departing from the invention, so the claims appended hereto are within the spirit and scope of the invention within the scope of the claims and Will include modifications.

Therefore, as described above, in the present invention, by adding the Internet information search function to the vehicle navigation system, it is possible to receive a huge amount of geographic information and changed or new geographic information registered on the Internet in real time.

Claims (5)

Vehicle navigation that maps the geographic information of the current location of the vehicle, the main branching point of the road, and the major constructions to the map coordinates according to the GS signal, the azimuth signal, the vehicle speed signal, and the map data, and displays the resulting geographic information on the display unit. In the system, A command input unit for setting an Internet information search mode and inputting a search command for desired geographic information; A transmission / reception unit for transmitting a search command for desired geographic information to an Internet server and receiving geographic information searched by the Internet server; A modulation / demodulator for modulating a search command for the desired geographic information and demodulating the geographic information received by the transceiver; And Calculating geographic information on the current position of the vehicle, the main branching point of the road, and the main constructions based on the GS signal, the direction signal, the vehicle speed signal, and the map data provided from the vehicle navigation system; And a control unit which matches the geographic information demodulated by the modulation and demodulation unit on the map coordinates, and controls the display unit to display the matched geographic information. The apparatus of claim 1, wherein the command input unit has a search mode switch for searching the Internet information. The Internet information retrieval apparatus of claim 1, wherein the command input unit comprises a microphone capable of inputting an information retrieval command by voice for internet information retrieval. 2. The Internet information retrieval apparatus of a vehicle navigation system according to claim 1, wherein a vehicle and a portable radio and a car phone are used as the transceiver. Vehicle navigation that maps the geographic information of the current location of the vehicle, the main branching point of the road, and the major constructions to the map coordinates according to the GS signal, the azimuth signal, the vehicle speed signal, and the map data, and displays the resulting geographic information on the display unit. In the system, Determining whether or not the Internet information search mode; In the Internet information search mode, modulating a search command for desired geographic information and transmitting it to an Internet server; Receiving and demodulating geographic information retrieved by an Internet server after the transmitting step; Matching geographic information demodulated in the demodulation step with geographic information provided from a vehicle navigation system on map coordinates; And And displaying the matched geographic information in the display unit on the display unit.