KR20060017158A - Location based service(lbs) for mobile terminal using 3d graphic - Google Patents

Abstract

The present invention is to provide users with a more accurate and convenient LBS for a mobile terminal in using a navigation system or a location tracking system, using the working data stored in the first memory corresponding to the communication signal transmitted from the base station Modem chip that performs a modem function for communication, MIDI (Music Instrument Digital Interface) for controlling the audio signal of the signal output from the modem chip to output to the speaker or microphone, and video signal of the signal output from the modem chip And a co-processor for performing 3D graphics processing and displaying the image in 3D on the display unit when a user request signal for navigation or location tracking is input from the modem chip.

Location based service (LBS), navigation system, portable terminal

Description

Location Based Service (LBS) for mobile terminal using 3D graphic}

1 is a block diagram of a conventional mobile communication system.

2 is a view showing the structure of an LBS for a portable terminal using 3D graphics according to the present invention

* Explanation of symbols for main parts of the drawings

100: RF unit 200: modem chip

210: memory interface unit 220: graphics processing unit

230: modem interface unit 240: GPIO

300a, 300b: memory 400: flash memory

500: MIDI 510: software

520: speaker 600: co-processor

700: USB / Keypad / JTAG 800: Memory Card

900: display unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a location based service (LBS) for a personal mobile terminal, and more particularly to an LBS for a mobile terminal capable of providing more accurate and convenient to a user using the LBS.

In general, a mobile communication system is a communication system that targets mobile devices such as people, cars, ships, trains, and aircraft, which are mobile phones (mobile phones, vehicle phones), port phones, aircraft phones, mobile phones (trains, cruise ships, Installed on express buses), radio calls, radiotelephones, satellite mobile communications, amateur radio, and fishing service.

These mobile communications include the Advanced Mobile Phone Service (AMPS) system using analog methods, CDMA and TDMA (Time Division Multiple Access) systems using digital methods, and Frequency Division Multiple Access (FDMA) systems. Systems, and systems such as PCS (Personal Communication System) and IMT-2000 are used.

The mobile communication system receives the call processing request from the mobile terminal 10, the mobile terminal 10, and the mobile terminal 10 that stop at a point that is not moved or specified as shown in FIG. The base station 20 transmits a request to the mobile terminal 10, and controls the base station 20 to perform signal processing between the base station 20 and an exchange (not shown). And a base station controller 30 which performs a handoff function for maintaining the continuity of the call even while the subscriber is moving, and a home location register 40 in which subscriber information is entered and communicates with the base station controller 30. It is configured to include.

Thus, the call of the mobile terminal 10 is realized through the exchange, the base station controller 30 and the base station 20.

That is, if the subscriber wants to use the mobile communication service while having his mobile terminal 10 within the service radius of the exchange, the base station controller 30 controls the base station 20 to obtain the information of the mobile terminal 10. Transfer to the exchange. Then, the mobile communication system operates to perform a voice / message information service according to a request of the mobile terminal 10 or to connect with another communication network to perform a mobile communication service.

Here, the mobile terminal 10 informs the base station 20 of its current location in advance, and the location information of the mobile terminal 10 is processed by the home location register 40. Thus, in the case of the mobile communication service provider, the mobile terminal 10 can determine where the mobile terminal 10 is located in the area of the base station 20.

By using the location based service (LBS) of the mobile terminal 10, it is possible to provide a location information service to general users.

At present, the LBS processing system proposed by 3GPP provides a location-based service information including authentication data and location accuracy data for a location service request when an external LBS client requests a location service from a location information providing system. Search.

Subsequently, the mobile station or the packet data controller requests the subscriber location information, performs the location calculation at the base station controller, and transmits the location information to the location information providing system. Then, the location information providing system converts and provides the location data to be recognized by the external LBS client to provide the location service to the user.

Therefore, a navigation system or a location tracking system currently being used synthesizes the information of the calculated current position into pre-stored map information, and not only the position of the moving object but also the direction of movement of the moving object, the distance to the destination to be traveled, and the current of the moving object. It is possible to provide the user with various kinds of information necessary for driving such as a speed, a route set before the user moves, road information, and a recommended route to a destination.

However, LBS-based navigation systems or location tracking systems currently used in personal portable terminals are provided to users based on text or low-level 2D graphics. Therefore, using the LBS service provided to accurately track the location does not have enough visual effect.

In addition, as the topography of urban centers changes frequently due to road construction and urban planning, it is essential to upgrade the database. Therefore, users who use the navigation system or the location tracking system are upgrading from time to time.

However, the upgrade method of the portable terminal currently used by the general public is made through a wireless communication method on the air, which causes the user to pay a large communication fee. In particular, as the user must continue to upgrade, the communication fee to be paid for each upgrade is a great burden on the user.

Accordingly, an object of the present invention is to provide an LBS for a portable terminal, which is more accurate and convenient for users to use a navigation system or a location tracking system.

Another object of the present invention is to make it easier to upgrade the database of the LBS for the portable terminal that is continuously generated as the terrain changes frequently.

It is still another object of the present invention to visually express a location through 3D graphics processing to a user who uses a navigation system or a location tracking system to easily recognize surrounding conditions and surrounding structures.

Characteristic of the LBS for portable terminal using 3D graphics according to the present invention for achieving the above object is a modem chip for performing a modem function for communication using the working data stored in the first memory corresponding to the communication signal transmitted from the base station And a MIDI (Music Instrument Digital Interface) for controlling audio signals among the signals output from the modem chip and outputting them to a speaker or a microphone, a display unit for displaying a video signal among the signals output from the modem chip, and the modem chip. When the user request signal according to the navigation or location tracking is input, the display unit is configured to include a co-processor to display the image in 3D by performing the 3D graphics processing.

And a second memory connected to the co-processor and storing working data necessary for 3D graphics processing, and detachable from a portable terminal, and storing working data through a web, and stored in the second memory. It further comprises a memory card that upgrades the working data, with other features.

In addition, the modem chip receives an RF signal and a GPS signal transmitted from the base station and a modem interface unit for connecting an external USB / keypad / JTAG, etc. via GPIO (General Purpose Input / Output), and the working stored in the first memory A memory interface unit for outputting audio and video signals to the speaker and the display unit together with data input, and a graphics processor for controlling the 3D graphics image processed by the co-processor.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments with reference to the accompanying drawings.

A preferred embodiment of an LBS for a portable terminal using 3D graphics according to the present invention will be described with reference to the accompanying drawings.

2 is a view showing the structure of an LBS for a portable terminal using 3D graphics according to the present invention.

As shown in FIG. 2, the modem chip 200 performs a modem function for communication using the working data stored in the first memory 300a corresponding to the communication signal transmitted from the base station through the RF unit 100, and the modem chip. MIDI (Music Instrument Digital Interface) 500 to control the audio signal of the signal output from the output to the speaker or microphone 520, and the display unit 900 for displaying the video signal of the signal output from the modem chip 200 ) And a co-processor 600 that performs 3D graphics processing and displays the corresponding image in 3D on the display unit 900 when a user request signal according to navigation or location tracking is input from the modem chip 200. .

And a second memory 300b connected to the co-processor 600 to store working data necessary for 3D graphics processing, and detachable from a portable terminal and receive working data through a web. It further comprises a memory card 800 for upgrading the working data stored in the second memory (300b) (up grade).

In this case, the co-processor 600 is composed of a DSP or 3D acceleration dedicated chip, the first and second memories 300a and 300b are composed of SDRAM, and the display unit 900 is composed of an LCD panel. desirable.

In addition, the modem chip 200 receives an RF signal and a GPS signal transmitted from a base station, and a modem interface unit for connecting an external USB / keypad / JTAG 700 through a GPIO (General Purpose Input / Output) 240. And a memory interface 210 for outputting audio and video signals to the speaker 520 and the display 900 together with input of working data stored in the first memory 300a. The graphic processing unit 220 controls a 3D graphic image processed by the processor 600.

Referring to the accompanying drawings, the operation of the LBS for a portable terminal using 3D graphics according to the present invention configured as described above will be described in detail as follows.

First, when a subscriber has his mobile terminal and is within the service radius of the exchange, and wants to use a mobile communication service, the base station controller controls the base station and transmits the information of the mobile terminal to the exchange.

Here, the mobile terminal informs the base station of its current location in advance, and the location information of the mobile terminal is processed by the home location register. Therefore, the mobile communication provider can check where the corresponding mobile terminal is located in area of the base station.

Then, the mobile communication system performs a voice / message information service according to the request of the mobile terminal, or performs a mobile communication service through the first memory 300a by connecting to the modem chip 200 through another communication network and the RF unit 100. It works.

At this time, when the user requests a location information service using a location based service (LBS) of the portable terminal, the co-processor 600 uses the 3D graphic data stored in the second memory 300b to 3D. The graphic processing is performed to display the image according to the navigation or location tracking requested by the user on the display 900 in 3D.

In this configuration, the modem chip 200 may further include a graphic processor 220 that controls the co-processor 600 as well as a simple modem function for communication. The graphics processing unit 220 has a remarkable improvement in recent performance, so that the clock speed of a processor core has a performance of about 150 to 200 MHz.

However, in order to process 3D graphics, it is necessary to process hundreds of thousands to millions of polygons per second so that users can use them without inconvenience. With current technology, only the graphic processor 220 inside the modem chip 200 can display 3D on the display 900. There is a limitation in providing an image according to the navigation or location tracking implemented by.

Therefore, at this point in time, it may be said that 3D graphics processing is almost impossible using only the graphic processor 220 in the modem chip 200. Accordingly, the co-processor 600, which is a separate 3D dedicated chip, may be disposed outside the modem chip 200. The wiring is configured to be detachable.

This structure can be said to be similar to the configuration method when a separate graphics card is inserted into a mainboard on a PC to perform 3D games or 3D graphics processing. Therefore, a detailed description of the wiring method between the co-processor 600 and the modem chip 200 will be omitted.

Accordingly, it is possible to process hundreds of thousands to millions of polygons per second generated during the processing of 3D graphics through the external co-processor 600 in the terminal, and the graphic processor 220 in the modem chip 200. Due to the high performance of the 3D graphics control data transfer between the co-processor 600 and the modem chip 200 can be faster.

As such, the 3D graphic control data is transmitted and received between the modem chip 200 and the co-processor 600, and thus the 3D processed on the display unit 900 including the LCD panel connected to the co-processor 600. The image will be displayed.

In this case, the second memory 300b connected to the co-processor 600 is a working memory that stores data necessary for the execution of the co-processor 600, and provides data and instructions related to 3D graphics processing. Saving. Therefore, when using the image according to the navigation system and the location tracking, the second memory 300b plays the same role as the database system.

Therefore, 3D graphics processing performed in the co-processor 600 can be used as a 3D navigation and location tracking system based on this data stored in the second memory 300b.

In addition, a separate memory card 800 connected to the co-processor 600 may be further configured to upgrade data stored in the second memory 300b through air. In this case, since the communication cost may be a burden, the memory card 800 may be made on the web, thereby solving the burden of the communication cost.

That is, the memory card 800 is pulled out alone, and after paying only a certain fee, the data to be upgraded through the web is stored through the PC, and the stored data is inserted into the mobile terminal to insert the second memory 300b. Will upgrade the data.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

As described above, the LBS for a portable terminal using 3D graphics according to the present invention expresses a position to a general user through 3D graphic processing to a general user in using a navigation system or a location tracking system. There is an effect that makes the structures easily recognizable.

Claims (5)

A modem chip for performing a modem function for communication using the working data stored in the first memory corresponding to the communication signal transmitted from the base station; MIDI (Music Instrument Digital Interface) for controlling the audio signal of the signal output from the modem chip to output to the speaker or microphone, A display unit which displays an image signal among signals output from the modem chip; And a co-processor configured to perform 3D graphic processing and display the corresponding image in 3D on the display unit when a user request signal according to navigation or location tracking is input from the modem chip. The method of claim 1, A second memory wired on the co-processor and storing working data for 3D graphics processing; The mobile terminal may be detachable from the mobile terminal, and further includes a memory card configured to receive working data through a web and to upgrade working data stored in the second memory. For LBS. The method of claim 2, And the second memory is composed of SDRAM. The method of claim 1, The co-processor LBS for a portable terminal, characterized in that consisting of any one of the DSP and 3D acceleration dedicated chip. The method of claim 1, wherein the modem chip A modem interface unit for receiving an RF signal and a GPS signal transmitted from a base station and connecting an external USB / keypad / JTAG through a GPIO (General Purpose Input / Output); A memory interface unit for outputting an audio signal and a video signal to the speaker and the display unit together with input of the working data stored in the first memory; And a graphic processor configured to control a 3D graphic image processed by the co-processor.

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