KR20040069742A - System and method of location-based information service - Google Patents

Abstract

PURPOSE: A system and a method for servicing the location-based information are provided to easily supply various information providing service including the traffic information without depending on the mobile terminal. CONSTITUTION: A system for servicing the location-based information includes a global positioning system(GPS) antenna(304), a GPS data process block(303), a voice signal process block(305), a handsfree block(302) and a central processing block(301). The GPS antenna(304) receives the GPS coordinate through the communication with the GPS satellite. The GPS data process block(303) calculates the current GPS coordinate of the vehicle and fabricates the calculated value into the current position coordinate and the direction information. The voice signal process block(305) converts the current position coordinate and the direction information fabricated at the GPS data process block(303) into the voice signal. The handsfree block(302) supplies the information required by the user through the voice signal connected to the mobile terminal by connecting with the service center and supplies the handsfree function to the subscriber. And, the central processing block(301) is operated to realize the information supply required by the user with controlling the GPS data process block(303), the voice signal process block(305) and the handsfree block(302).

Description

System and method of location-based information service

The present invention relates to a system and method for a traffic information providing service, and in particular, a traffic information through a simple procedure by connecting a handsfree kit mounted on a vehicle and a mobile terminal without purchasing a mobile phone equipped with a traffic information providing function. The present invention relates to a location-based information service system capable of providing a provided service.

The traffic information service provided so far can be divided into two types. The first is to provide a service to an existing platform without developing a separate terminal, and the second is to develop a dedicated terminal for telematics and provide a service. It is.

First, the existing platform may include a web, a wireless application protocol (WAP), and an advanced record system (ARS), and operate as shown in FIG. 1.

1 is a flowchart illustrating a traffic information providing service using a conventional ARS.

Referring to FIG. 1, in order to use a road guidance service which is one of traffic information providing services using an ARS service, a user connects a call to a traffic information providing ARS number using a landline or a mobile phone (S101). Enter the ID and password information for (S102). At this time, the ID and password for the authentication may use the information registered in advance for the ARS service by the user.

When the authentication is completed, the user inputs his or her current location or starting point (S103), inputs a destination (S104), and listens to traffic information provided through the terminal (S105).

The ARS service is widely used because it can be directly serviced in a car by using a mobile terminal, and is used because it is easy to use the user interface compared to the web.

However, in the case of the ARS service, the service user has to enter a separate member authentication number such as a member ID / password every time after accessing the service center by using a mobile phone. Therefore, if you do not know the exact position, there is a difficulty in input.

Second, a traffic information providing method using a dedicated terminal consisting of a mobile terminal and a handsfree kit includes a hands-free navigation kit for a mobile terminal running a Java application on the mobile terminal or programming a separate protocol. It can be installed at to receive directions and traffic information service.

2 is a flowchart illustrating an operation of providing a traffic information service using a conventional dedicated terminal.

Referring to FIG. 2, when a dedicated terminal is used, a traffic information providing service connection is started to access a traffic information providing service with a single button (S201), and GPS coordinates are used using a GPS function basically installed in the dedicated terminal. Data is transmitted through the data network (S202).

When the destination is input through the voice network (S203), the starting point and the destination are transmitted to the center for guiding the traffic information, and the route information is requested (S204), and the route data is received from the center (S205). Service can be received (S206).

When the dedicated terminal is used as described above, GPS data at the user's current location is transmitted through the data network, and a voice call connection must be made in order to select a destination, so switching between the voice network and the data network is required. Resource-intensive problems occur, and the inconvenience of switching between two channels is accompanied.

In order to solve the problems as described above, the present invention can be used by a plurality of users regardless of the terminal or carrier using the existing ARS service, traffic information providing service, user authentication to solve the problems raised when using ARS By using hands-free kit, which inputs the information in advance, it is possible to access it at one time and increase convenience. Also, by adding GPS (Global Positioning System) function, it is possible to input the exact position of its own to increase the accuracy of information. The purpose is to provide a location-based information service system.

1 is a flowchart illustrating a traffic information providing service using a conventional ARS.

2 is a flowchart illustrating an operation of providing a traffic information service using a conventional dedicated terminal.

3 is a block diagram showing the structure of a location-based information service terminal device according to an embodiment of the present invention.

4 is an example of processing position information into DTMF signals according to an embodiment of the present invention.

5 is a block diagram illustrating a structure of a service center for providing traffic information service to the terminal device of FIG. 3 according to an embodiment of the present invention.

6 is a flowchart illustrating an operation of a traffic information providing service method according to a first embodiment of the present invention.

7 illustrates an example of voice expression of the terminal device of FIG. 5 according to the first embodiment of the present invention.

8 is a flowchart illustrating a method of providing traffic information service according to a second embodiment of the present invention.

9 shows an example of voice expression of the terminal apparatus of FIG. 5 according to the second embodiment of the present invention.

10 is a flowchart illustrating a traffic information providing service method according to a third exemplary embodiment of the present invention.

<Brief description of the main parts of the drawings>

301: central processing unit 302: hands free unit

303: GPS data processing unit 304: GPS antenna

305: Voice signal processing unit 306, 308: I / O terminal 1,2

307: unmanned camera DB 309: remote control

Location-based information service system according to a feature of the present invention,

A terminal device mounted on a vehicle, connected to a mobile terminal, connected to a service center providing information according to a subscriber's request through a mobile communication network, and providing information to the subscriber, wherein the terminal coordinates GPS coordinates through communication with a GPS satellite. A GPS antenna for receiving; A GPS data processor for obtaining a current GPS coordinate of the vehicle and processing the current GPS coordinates into direction information; A voice signal processor converting the current position coordinates and the direction angle information processed by the GPS data processor into a voice signal to transmit the voice signal to the service center through a voice call connected to the mobile terminal; A hands-free unit which connects to the service center and provides information requested by the subscriber through a voice or a screen, and provides a hands-free function to the subscriber when a call is connected using the mobile terminal; And a central processing unit for controlling the GPS data processing unit, the voice signal processing unit, and the hands free unit to operate for providing information requested by the subscriber.

Preferably, further comprising an unmanned camera DB for storing the location of the unmanned camera, and provides the unmanned camera information to the subscriber.

Preferably, the hands free unit, a microphone for receiving the subscriber's voice; A speaker for outputting voice information transmitted from the service center to a subscriber; A remote control signal receiver for controlling the terminal device using a wireless remote controller; And a display unit for displaying on the screen the information transmitted from the service center.

Preferably, it comprises an I / O (input / output) terminal for connecting with the mobile terminal and an I / O terminal for connecting with an information terminal for updating unmanned camera information in the unmanned camera DB. .

In addition, the location-based information service center according to another feature of the present invention,

A service center connected with a mobile terminal to provide location information transmitted from an information service terminal device mounted in a vehicle and information according to a request for information, wherein the call is connected through the mobile terminal and a voice call connected to the mobile terminal is connected. A voice signal modulator / demodulator for demodulating a voice signal transmitted from the information service terminal apparatus into a data signal; An authentication unit for performing authentication by using the authentication data signal demodulated by the voice signal modulation / demodulation unit; An IVR, configured to perform information provision or call transfer according to a subscriber's request with respect to the authenticated call; A voice processing unit for receiving a request for information of a subscriber through voice by connecting a call transferred from the IVR, and searching and guiding the requested information by voice; And an information provider for providing information searched by the voice processor.

Preferably, the voice processing unit, a counselor call device capable of providing information through a call between the subscriber and the counselor using a computer having the map information; A voice answering device for automatically answering the connected call; And a TTS for converting and providing text information requested by a subscriber through the connected call into voice.

The information providing unit may include: a route information providing center for searching and providing route information between a departure point and a destination for a route guidance service to the subscriber; A route map unit having route information searched by the route information providing center; A traffic information unit for providing traffic information to the subscriber; A location information unit for providing current location information to the subscriber; Life information unit for providing living information to the subscriber; And a personalization DB that is in charge of storing information according to the use of favorite destination information or service preset by the subscriber.

In addition, the location-based information service system according to another aspect of the present invention,

A location-based information providing terminal device connected to a mobile terminal of a subscriber, transmitting current location information as voice data, receiving traffic information, and providing voice information; And a service center that analyzes voice data transmitted from the location-based information providing terminal device through the mobile terminal and provides information according to the subscriber's request by voice.

Preferably, the location-based information providing terminal device, GPS antenna for receiving GPS coordinates through communication with the GPS satellites; A GPS data processor for obtaining a current GPS coordinate of the vehicle and processing the current GPS coordinates into direction information; A voice signal processor converting the current position coordinates and the direction angle information processed by the GPS data processor into a voice signal to transmit the voice signal to the service center through a voice call connected to the mobile terminal; A hands-free unit which connects to the service center and provides information requested by the subscriber through a voice or a screen, and provides a hands-free function to the subscriber when a call is connected using the mobile terminal; And a central processing unit for controlling the GPS data processing unit, the voice signal processing unit, and the hands free unit to operate for providing information requested by the subscriber.

Preferably, the service center is connected to the call via the mobile terminal, and the voice signal modulator / demodulator for demodulating the voice signal transmitted from the information service terminal device to the data signal through the voice call connected to the mobile terminal ; An authentication unit for performing authentication by using the authentication data signal demodulated by the voice signal modulation / demodulation unit; An IVR, configured to perform information provision or call transfer according to a subscriber's request with respect to the authenticated call; A voice processing unit for receiving a request for information of a subscriber through voice by connecting a call transferred from the IVR, and searching and guiding the requested information by voice; And an information provider for providing information searched by the voice processor.

Location-based information service method according to another feature of the present invention,

A method for receiving traffic information by accessing a service center providing traffic information from a terminal device mounted on a vehicle connected to a mobile terminal, the method comprising: (a) the mobile terminal subscriber receiving a hotkey provided to the terminal device; Requesting to provide traffic information by using; (b) in response to the traffic information provision request, the mobile terminal connects a voice call to a service providing center, converts the current vehicle location information and authentication information into a voice signal, and transmits the voice signal through the connected voice call. Transmitting to a service center; (c) receiving, by the terminal apparatus, the traffic information requested from the service center through a voice network; And (d) outputting the received voice information so that the mobile terminal subscriber can listen to the terminal device.

Preferably, step (b) comprises the steps of the mobile terminal connecting a voice call with a service center; Converting, by the terminal device, preset authentication information and current location information (position coordinates and direction angle) into a voice signal and transmitting the voice signal to the service center through the connected voice call; And performing, by the service center, an authentication procedure using the corresponding authentication information, searching for and transmitting traffic information requested by the subscriber using current location information, and receiving the received terminal device.

Preferably, the method may further include displaying traffic information received through the voice network in the step (C) to the subscriber through a display device provided in the terminal device.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

3 is a block diagram showing the structure of a location-based information service terminal device according to an embodiment of the present invention.

Referring to FIG. 3, a terminal device for receiving a location-based information service includes a central processing unit 301, a hands free unit 302, a GPS data processing unit 303, a GPS antenna 304, a voice signal processing unit 305, and I. / O (Input / Output) terminal 1 306, unmanned camera DB 307, I / O terminal 2 308.

In the terminal device having the above-described structure, the hands-free unit 302 provides a hands-free function including a function of connecting a mobile terminal while driving a vehicle, including a speaker and a microphone, to enable a call.

In addition, the GPS data processing unit 303 performs a calculation processing operation for calculating a position coordinate value and a heading direction angle by using GPS information transmitted from a GPS satellite through the GPS antenna 304.

In addition, the position coordinate value and the heading direction angle calculated by the GPS data processor 303 are transmitted to the voice signal processor 305 through the central processor 301, and the voice signal processor 305 receives the received position coordinate value. And the direction direction angle data is modulated into a voice band signal and transmitted to a traffic information providing service center through a mobile terminal connected to I / O terminal 1 (306).

The terminal device may further provide a remote controller 309 by configuring a remote controller function for the convenience of the user, and may wirelessly communicate with the hands free unit 302 to issue an operation command.

In addition, the unmanned camera DB 307 has the location information with the unmanned camera of the national road, and the GPS data received through the GPS antenna 304 in the GPS data processing unit 303 by processing the position coordinates in the center When transmitting to the processing unit 301, the central processing unit 301 to provide a function that can inform the user that there is an unmanned camera in the position where the unmanned camera compared to the unmanned camera position information in the unmanned camera DB (307) do.

In this case, the contents of the unmanned camera DB 307 may be updated by connecting to a computer through the I / O terminal 2 308.

In addition, a method of modulating a voice band signal uses a fax or dual tone multi frequency (DTMF) or a modulation of a voice modem for transmitting data based on the voice band.

Here, an example of the voiceband signal modulation will be briefly described as follows.

4 is an example of processing position information into DTMF signals according to an embodiment of the present invention.

Referring to FIG. 4, the location information may be divided into X and Y coordinate information indicating the location of the current vehicle terminal, and other information such as time and azimuth. At this time, the X, Y coordinate information of the location information is compressed data by the compression method provided by the location-based information service terminal apparatus according to an embodiment of the present invention, and other information such as time, azimuth, etc. is optionally provided as a header according to the system. Make.

In addition, since the header and the compressed data become binary data, the header and the compressed data are converted into decimal to generate DTMF, which is generated as a DTMF signal as shown in FIG. 4.

The DTMF signal generated in this way is transmitted to a Kyoto service center through a mobile terminal connected to I / O terminal 1 306.

In addition, the service center for providing traffic information in connection with the location-based information service terminal according to an embodiment of the present invention has the following structure.

5 is a block diagram illustrating a structure of a service center for providing traffic information service to the terminal device of FIG. 3 according to an embodiment of the present invention.

Referring to FIG. 5, the service center includes a PBX 501, an Interactive Voice Response (IVR) 502, an authenticator 503, a voice signal modulator / demodulator 504, a voice processor 510, an information provider ( 520).

In this case, the voice processing unit 510 is configured to be connected to the agent call device 511 and the agent 512, and includes an Automatic Speech Recognition (ASR) 513, Text-To-Speech (TTS) 514, The information providing unit 520 may include a route customization algorithm (RCA) 521, a route planning unit 522, a traffic information unit 523, a location information unit 524, and a living information unit 525. ), Personalization DB (526).

The IVR 502 accepts a combination of voice telephony input and DTMF signals from a touchtone telephone with an interactive voice answering device to provide an appropriate response in the form of voice, fax, callback, email, or other media.

The voice signal modulation / demodulation unit 504 receives the voice or DTMF signal from the IVR 502 to restore the location information and the authentication information, and the authentication unit 503 performs subscriber authentication using the restored authentication information. The location information demodulated by the voice signal modulator / demodulator 503 is transmitted to the information provider 520.

In addition, the voice processing unit 510 enables the counselor 512 to directly guide the subscriber to the desired information by using the agent call device 511, which is a personal computer terminal having map information, or by voice through the ASR 513. The TTS 514 may also transform textual data into voice to provide traffic information to the subscriber.

In addition, the information providing unit 520 calculates and provides the route information from the summary route calculation unit 521 to the destination selected by the subscriber in conjunction with the route information generation unit 522 and the corresponding route in the traffic information unit 523. Provide traffic information.

The location information unit 524 provides location information to the subscriber, and the life information unit 525 provides life information.

The subscriber information is stored in the personalization DB 526 to store subscriber management and necessary data. In particular, the personalized DB (526) is to store the information that can be easily selected in the road guidance service by registering in advance the area frequented by the subscriber during the road guidance in the traffic information service.

A traffic information providing service method using a location-based information service terminal connected to a traffic information providing service center according to an embodiment of the present invention is as follows.

6 is a flowchart illustrating an operation of a traffic information providing service method according to a first embodiment of the present invention.

Referring to FIG. 6, the first embodiment is a method for providing a road guide service in a traffic information service, and first, a subscriber connects and mounts his mobile terminal with I / O terminal 1 306 of a terminal device. The route guidance menu is selected at once by pressing a hot key provided to the terminal device (S601). In this case, the route guidance menu may be selected using a remote controller 309 provided separately without pressing a hot key.

When the menu service menu is selected, the call is connected to the service center through the mobile terminal, and the service is connected to the road service (S602), and the user selects a destination to go to (S603).

Then, the terminal device automatically transmits the current position, that is, the starting point coordinates, to the center. That is, the GPS data processor 303 calculates the position coordinates and the direction angle information by using the GPS coordinates received through the GPS antenna 304. When the central processing unit 301 transmits the received position coordinate and direction angle information to the voice signal processing unit 305, the voice signal processing unit 305 transmits the received position coordinate and direction angle information. It converts the voice signal to be transmitted through the mobile terminal. In this case, DTMF tones may be used as the voice signal.

Then, the starting and destination information is transmitted to the summary path calculation unit 521 of the service center through the mobile terminal (S605), and the summary path calculation unit 521 interlocks with the path information generation unit 522 to determine the optimal path. The search results are then transmitted to the IVR 502 and the summary path calculated (S606).

The IVR 502 modulates the transmitted route information into voice by the voice signal modulator / demodulator 504 and transmits the voice information to the mobile terminal (S607).

That is, the voice-modulated route information transmitted to the mobile terminal is transferred to the hands-free unit 302, and the hands-free unit 302 outputs the voice information through the speaker so that the subscriber can listen to the voice information.

Accordingly, the hands free unit 302 includes a speaker capable of outputting voice information to the subscriber and a microphone function for receiving the subscriber's voice.

The above operation sequence will be described in more detail with reference to the terminal device and voice guidance as an example.

7 illustrates an example of voice expression of the terminal device of FIG. 5 according to the first embodiment of the present invention.

Referring to FIG. 7, when the user accesses the road guidance service using the mobile terminal (S701), the voice prompts such as "a road guidance service. The recently used destination 1, the favorite 2 times." You will hear a voice, and you will see '1. Recent destination, 2. Favorites' is displayed for the subscriber to select (S702).

At this time, the recent destination provides a list of the destinations that the subscriber has used the recent road guidance service, and the favorite provides a list of the favorite destinations that the subscriber has previously registered in the service center. As shown in FIG. 5, recent destinations, favorites, and the like are stored for each individual in the personalization DB 526 of the information provider 520.

If the subscriber selects a recent use destination according to the guidance message of step S702, it is, "This is the last use destination. SK Namsan Building is No. 1, SK Corporation Head Office is No. 2, Jisan Resort Ski Area is No. 3 ..." A guide message is provided along with a screen for selecting a recently visited destination (S703).

And, if the subscriber selects the head office of SK Corporation No. 2 at the recently used destination, the terminal device transmits the current vehicle location to the service center and receives voice guidance from the service center.

That is, after the announcement such as "current location is Hoehyeon-dong 1-ga, Jung-gu, Seoul. We will guide you to the head office of SK Co., Ltd." (S704), and provides a voice guidance service (S705).

By using the above service, the subscriber can simply select a destination frequently visited and be guided to the optimal route based on traffic information.

At this time, in addition to providing the route guidance service through the voice expression according to the embodiment of the present invention, the display device of the terminal device to display the route information received through the voice network on the screen to the subscriber to see the screen It can also provide a way to use the directions service.

8 is a flowchart illustrating a method of providing traffic information service according to a second embodiment of the present invention.

Referring to FIG. 8, as a service providing method when a subscriber wants to be guided for the first time, the subscriber selects a first way guidance menu using a terminal device or a remote controller 309 connected to the mobile terminal (S801). The terminal device connects the call with the service center and accesses the road guidance service (S802).

When the subscriber speaks the destination, the center recognizes the state / province of the destination through the ASR 513 (S803), and the subscriber inputs the correct destination by voice (S804). In other words, after inputting the approximate address (city and state) of the destination to which the subscriber wants to go, the user can re-enter the building or address of the destination to increase accuracy.

After recognizing the input destination, the service center checks again whether the recognized destination is correct to the subscriber (S805), and if it is recognized incorrectly, recognizes the destination through voice input again (S806).

After the destination recognition is completed, the terminal device receives the current position coordinates of the vehicle as the position information through the GPS antenna and converts the position information such as the position coordinates and the direction angle to a voice signal to transmit to the service center (S807). At this time, according to the embodiment of the present invention, as described above with reference to FIG.

The service center receiving the destination and the departure point information transmits the departure point and the destination information to the route providing center 521 of the information providing unit 520 (S808) to search for the optimum route, and the retrieved optimum route information is the IVR 502. ) Is transmitted (S809).

In operation S810, the IVR 502 converts the transmitted optimal path information into voice and provides the subscriber.

The second embodiment of the present invention as described above will be described in detail with reference to the actual terminal screen and announcement as follows.

9 shows an example of voice expression of the terminal apparatus of FIG. 5 according to the second embodiment of the present invention.

Referring to FIG. 9, when a subscriber using a mobile terminal accesses a road guidance service (S901), a voice prompt such as "fast road guidance, first road service. First, say a city or province name" appears as a voice comment. , The subscriber inputs the city or province of the destination by voice (S902).

At this time, according to an embodiment of the present invention, when the subscriber inputs 'Seoul Metropolitan City' as a voice, the announcement sends out the voice guidance "Seoul Metropolitan City, please tell the destination", and the subscriber refers to the destination to which they wish to go (S903).

When the subscriber says the destination 'Gangnam-gu Sinsa-dong Somang Church', the center confirms the destination again with a guide voice such as "Gangnam-gu Sinsa-dong Sogman Church, is it right?" After searching for a route from the vehicle location to the destination, a road guidance service is provided through voice (S905).

In addition to providing the route guidance service through voice expression according to the above-described embodiment of the present invention, the display device of the terminal device is provided to display the route information received through the voice network on the screen so that the subscriber sees the screen. It can also provide a way to use the directions service.

And, the location-based information providing terminal device according to an embodiment of the present invention can provide a variety of services in addition to the road guidance service.

10 is a flowchart illustrating a traffic information providing service method according to a third exemplary embodiment of the present invention.

Referring to FIG. 10, an operation sequence of a secretary service among various additional services provided by a location-based information providing terminal device according to an embodiment of the present invention is shown. A subscriber selects a secretary service menu by connecting a mobile terminal to the terminal device. If (S1001), the terminal device is connected to the service center and directly connected to the counselor 512 (S1002), the terminal device automatically transmits the current vehicle location information (S1003).

Then, the counselor 512 and the subscriber will receive a guide service by making a voice call (S1004). In this case, as information that can be guided, it is possible to receive a variety of information guide services such as traffic information as well as living information or current location information.

As described above, the location-based information service terminal system and method according to the present invention do not replace the mobile terminal with a new terminal for receiving the information service, but the information on the terminal device basically mounted on the vehicle for use of the mobile terminal GPS function, voice signal modulation function and hands-free function are additionally configured to provide service, and data can be transmitted and received through voice network, and various information including traffic information can be provided anywhere, regardless of mobile terminal. It is effective to provide services.

Claims (13)

A terminal device mounted on a vehicle, connected to a mobile terminal, and connected to a service center providing information according to a subscriber's request through a mobile communication network, the terminal apparatus providing information to a subscriber. A GPS antenna for receiving GPS coordinates through communication with a GPS satellite; A GPS data processor for obtaining a current GPS coordinate of the vehicle and processing the current GPS coordinates into direction information; A voice signal processor converting the current position coordinates and the direction angle information processed by the GPS data processor into a voice signal to transmit the voice signal to the service center through a voice call connected to the mobile terminal; A hands-free unit which connects to the service center and provides information requested by the subscriber through a voice or a screen, and provides a hands-free function to the subscriber when a call is connected using the mobile terminal; And A central processing unit controlling the GPS data processing unit, the voice signal processing unit, and the hands free unit to provide information required by the subscriber; Location-based information service terminal device comprising a. The method of claim 1, Location-based information service terminal device further comprises an unmanned camera DB for storing the location of the unmanned camera, and provides the unmanned camera information to the subscriber. The method of claim 1, The hands free unit, A microphone for receiving the subscriber's voice; A speaker for outputting voice information transmitted from the service center to a subscriber; A remote control signal receiver for controlling the terminal device using a wireless remote controller; And Display unit for displaying the information transmitted from the service center on the screen Location-based information service terminal device comprising a. The method of claim 2, Location-based information comprising an I / O terminal for connecting to the mobile terminal and an I / O terminal for connecting to an information terminal for updating unmanned camera information in the unmanned camera DB Service terminal device. A service center connected to a mobile terminal and providing information according to a request for location information and information transmitted from an information service terminal device mounted on a vehicle, A voice signal modulator / demodulator for connecting a call through the mobile terminal and demodulating a voice signal transmitted from the information service terminal apparatus into a data signal through a voice call connected to the mobile terminal; An authentication unit for performing authentication by using the authentication data signal demodulated by the voice signal modulation / demodulation unit; An IVR, configured to perform information provision or call transfer according to a subscriber's request with respect to the authenticated call; A voice processing unit for receiving a request for information of a subscriber through voice by connecting a call transferred from the IVR, and searching and guiding the requested information by voice; And Information providing unit for providing information retrieved by the voice processing unit Location-based information service center comprising a. The method of claim 5, The voice processing unit, A counselor call device that can provide information through a call between the subscriber and an agent using a computer having the map information. A voice answering device for automatically answering the connected call; And TTS for converting text information required by subscriber through voice connection to provide voice Location-based information service center comprising a. The method of claim 5, The information providing unit, A route information providing center for searching and providing route information between a departure point and a destination for a route guidance service to the subscriber; A route map unit having route information searched by the route information providing center; A traffic information unit for providing traffic information to the subscriber; A location information unit for providing current location information to the subscriber; Life information unit for providing living information to the subscriber; And Personalized DB in charge of information storage according to the use of the favorite destination information or service preset by the subscriber Location-based information service center comprising a. A location-based information providing terminal device connected to a mobile terminal of a subscriber, transmitting current location information as a voice signal through a voice network, and receiving and providing traffic information by voice; And A service center that modulates / demodulates a voice signal transmitted from the location-based information providing terminal device through the mobile terminal, retrieves information according to a request of the subscriber, and provides a voice. Location-based information service system comprising a. The method of claim 8, The location-based information providing terminal device, A GPS antenna for receiving GPS coordinates through communication with a GPS satellite; A GPS data processor for obtaining a current GPS coordinate of the vehicle and processing the current GPS coordinates into direction information; A voice signal processor converting the current position coordinates and the direction angle information processed by the GPS data processor into a voice signal to transmit the voice signal to the service center through a voice call connected to the mobile terminal; A hands-free unit which connects to the service center and provides information requested by the subscriber through a voice or a screen, and provides a hands-free function to the subscriber when a call is connected using the mobile terminal; And A central processing unit controlling the GPS data processing unit, the voice signal processing unit, and the hands free unit to provide information required by the subscriber; Location-based information service system comprising a. The method of claim 8, The service center, A voice signal modulator / demodulator for connecting a call through the mobile terminal and demodulating a voice signal transmitted from the information service terminal apparatus into a data signal through a voice call connected to the mobile terminal; An authentication unit for performing authentication by using the authentication data signal demodulated by the voice signal modulation / demodulation unit; An IVR, configured to perform information provision or call transfer according to a subscriber's request with respect to the authenticated call; A voice processing unit for receiving a request for information of a subscriber through voice by connecting a call transferred from the IVR, and searching and guiding the requested information by voice; And Information providing unit for providing information retrieved by the voice processing unit Location-based information service system comprising a. In a method of receiving traffic information by accessing a service center providing traffic information from a terminal device mounted on a vehicle connected to a mobile terminal, (a) requesting the mobile terminal subscriber to provide traffic information using a hotkey provided to the terminal device; (b) in response to the traffic information provision request, the mobile terminal connects a voice call to a service providing center, converts the current vehicle location information and authentication information into a voice signal, and transmits the voice signal through the connected voice call. Transmitting to a service center; (c) receiving, by the terminal apparatus, the traffic information requested from the service center through a voice network; And (d) outputting the received voice information to the mobile terminal subscriber so that the terminal device can listen; Location-based information service method comprising a. The method of claim 11, In step (b), The mobile terminal connecting a voice call with a service center; Converting, by the terminal device, preset authentication information and current location information (position coordinates and direction angle) into a voice signal and transmitting the voice signal to the service center through the connected voice call; And Performing the authentication process using the corresponding authentication information in the service center, searching for and transmitting the traffic information requested by the subscriber using the current location information, and receiving the received information by the terminal apparatus; Location-based information service method comprising a. The method of claim 11, And (c) displaying traffic information received through a voice network to a subscriber through a display device provided in the terminal device.