KR100703189B1 - Method and System for Providing Driving Assistant Navigation Service by Using MS-Based GPS Mode - Google Patents

Abstract

The present invention relates to a safe driving assistant service method and system using the MS-Based GPS method.

The present invention provides a safe driving assistant service method using an MS-Based GPS method in a mobile communication system including a mobile communication terminal, a location determination server, a location based services platform (LBS platform), and a safe driving information providing server. Generating auxiliary data in the location determination server using MS information received from the mobile communication terminal and transmitting the generated data to the mobile communication terminal; (b) receiving GPS radio waves from a GPS satellite and positioning the mobile communication terminal using the assistance data received from the positioning server; (c) requesting safe driving information at a corresponding location by transmitting the location information to the LBS platform; (d) generating the safe driving information at the corresponding location in the safe driving information providing server receiving the location information from the LBS platform and transmitting the generated safe driving information to the mobile communication terminal; And (e) receiving the safe driving information and outputting the safe driving information on the mobile communication terminal.

According to the present invention, the MS-Based GPS system can be provided with a safe driving assistant service by positioning its location in a mobile communication terminal without having to provide a separate GPS receiver.

GPS, MS-Based, IS-801, Safe Driving Assistant, LBS

Description

Method and System for Providing Driving Assistant Navigation Service by Using MS-Based GPS Mode}

1 is a block diagram schematically illustrating an example of a conventional location-based service system;

2 is an exemplary screen of safe driving information provided by a safe driving assistant service;

3 is a block diagram schematically illustrating a safe driving assistant service system using an MS-Based GPS method according to an embodiment of the present invention;

4 is a block diagram showing an internal configuration of a mobile communication terminal according to an embodiment of the present invention;

5 is a flowchart illustrating a safe driving assistant service method using an MS-Based GPS method according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

300: Safe Driving Assistant Service System

310: GPS satellite 320: mobile communication terminal

330: wireless access network 332: base station transmitter

334: base station controller 340: mobile switching center

350: manganese interlocking device 360: positioning server

370: LBS Platform 380: Safe driving information providing server

390: user database 400: GPS antenna

402: GPS receiver 404: flash memory

406: EEPROM 408: ROM

410: key input unit 412: display unit

414: microprocessor 416: digital signal processing unit

418: baseband converter 420: RF signal processor

422 speaker 424 microphone

426: RF antenna

The present invention relates to a safe driving assistant service method and system using the MS-Based GPS method. In more detail, when the mobile communication terminal transmits MS information to the positioning server, the mobile terminal generates the auxiliary data and transmits it to the mobile communication terminal, and the mobile communication terminal uses the received auxiliary data. Receives GPS radio waves, locates their location, and sends the location information for the side to the LBS platform to request safe driving information, the safe driving information providing server generates safe driving information and transmits it to the mobile communication terminal The present invention relates to a safe driving assistant service method and system using an MS-Based GPS method for outputting safe driving information on a mobile communication terminal.

As computer, electronic, and communication technologies have made rapid progress, various wireless communication services using wireless communication networks have been provided. The most basic wireless communication service is a wireless voice call service that provides a voice call to a mobile terminal user wirelessly, which can provide a service regardless of time and place, and provides a text message service to provide a voice call. It complements the service.

Meanwhile, with the establishment of the Internet based on Transmission Control Protocol / Internet Protocol (TCP / IP), various types of data can be searched using the Internet or various data including text, voice, image, video, etc. In addition to the rapid development of a system capable of real time transmission, in order to use a variety of communication services using the Internet in a better environment, the diffusion of high-speed communication network, etc. is greatly increased.

In addition, in recent years, in order to provide a communication service that transcends space, a wireless Internet service for providing an Internet communication service to a mobile communication service subscriber through a wireless communication network has emerged, and many companies have been developing technology for the wireless Internet. The wireless Internet service is an advanced personalization service according to the use of the terminal of the individual and has a feature of providing a unique information based on the mobility of the user. Mobile communication service subscribers can receive various types of information such as news, weather, sports, securities, exchange rates, and traffic information in various forms such as text, voice, still image, and video through wireless Internet service.

Among various wireless Internet services using a mobile communication terminal, in particular, LBS (Location Based Services) has gained much attention due to its wide utility and convenience. Location-based service refers to a communication service that locates a mobile communication terminal such as a mobile phone, a personal digital assistant (PDA), a notebook PC, and provides additional information related to the identified location. Location-based services include requests for rescue, response to crime reports, geographic information systems (GIS) for providing information on neighboring areas, differentiation of mobile communication charges based on location, traffic information, vehicle navigation and logistics control, location-based CRM It can be used in various fields and situations such as customer relationship management.

In order to use the location-based service, it is essential to know the location of the wireless communication terminal. The technique of locating a wireless communication terminal is called PDT (Position Determination Technology), which is a network-based method using a base station received signal and a handset based using a Global Positioning System (GPS) signal. -Based) method, and recently, a hybrid method that combines the two technologies to improve the position accuracy has been developed.

The network-based method does not need to add a new module to an existing mobile phone, which does not require additional cost for mobile phone development. However, the position error is approximately 500 m depending on the cell size or location determination method of the wireless base station. The disadvantage is that it is inaccurate enough to reach a few km. Accordingly, a handset based method using a GPS signal is generally used as a method of determining a location using wireless communication.

GPS is a system capable of locating anywhere in the world by 24 GPS satellites 110 orbiting the earth at an altitude of about 20,000 kilometers. GPS uses radio waves in the 1.5 GHz band, has a control station on the ground to control and collect information from GPS satellites, and you can use your GPS receiver to determine your current location. do. In general, triangulation is used as a method of positioning using a GPS system. Three satellites are required for triangulation, which requires a total of four GPS satellites, including one observational satellite for time error.

In more detail, since GPS already knows the position of each of the three satellites, the GPS is positioned by measuring the distance between the satellite and the GPS receiver. Since the distance from the satellite to the GPS receiver is transmitted from the satellite, the propagation time can be known from the difference between the time when the radio wave is transmitted from the satellite and the time received by the GPS receiver with the built-in clock.The propagation time is multiplied by the speed of light. To calculate the distance.

1 is a block diagram schematically illustrating an example of a conventional location based service system 100.

The conventional GPS-based location-based service system 100 includes a GPS satellite 110, a mobile communication terminal 120, a base transceiver station (BTS) 130, and a base station controller (BSC) 140. ), A mobile switching center (MSC) 150, a location server 160, and the like.

The GPS satellite 110 is a satellite used to locate the mobile communication terminal 120 in GPS. The GPS satellite 110 is composed of 24 satellites that continuously transmit the navigation data necessary for position calculation to the mobile communication terminal 120 through a carrier wave, of which 21 satellites are used for navigation. Satellites are reserved for reserve.

The mobile communication terminal 120 is a terminal in which a GPS receiver or the like for receiving navigation data from the GPS satellites 110 is embedded. The base station transmitter 130, the base station controller 140, and the mobile switching center 150 perform functions such as clock distribution, GPS data transmission and reception, etc. for GPS as well as a typical call processing function.

The location determination server 160 receives location information such as latitude and longitude coordinates from the mobile communication terminal 120, calculates the location of the mobile communication terminal 120, and provides a separate location for providing various location-based services. Send to the base service platform (not shown).

The GPS described in FIG. 1 is freely available to anyone, there is no limitation on the number of users, continuous positioning is possible in real time, and there is an advantage of relatively accurate position measurement.

However, the GPS-based location measurement method has a problem in that the path for location measurement is multiple and the location determination capability of the city is limited due to the lack of visible satellites. In addition, it is almost impossible to position in a place where satellites are not visible (such as in a tunnel, inside a building, or in a basement of a building), and a large error occurs in the positioning state according to the placement of the satellite viewed from the receiver. have. In addition, the time to first fix (TTFF), which is the actual time required for the GPS receiver to determine its location in the first place, sometimes takes about several minutes to several tens of minutes, which can be helpful to service users of location-based wireless Internet. There is a problem that causes great inconvenience.

In order to compensate for the drawbacks of the GPS method, an A-GPS method for determining the location of the mobile communication terminal by combining resources of the mobile communication network with the GPS method has been developed and used. In the A-GPS method, the mobile communication terminal collects information necessary for positioning at the same time from the GPS satellites and the mobile communication network, so that the location can be determined in three dimensions. The mobile communication network and the mobile communication terminal are defined in the standard of IS-801-1. Send and receive data or messages using the specified parameters.

The A-GPS method is a network-based handset assisted GPS (MS-Assisted Network-Based GPS) (hereinafter referred to as "MS-Assisted GPS") and a network-assisted handset-based GPS (MS-Based Network-Assisted GPS) (hereinafter, 'MS-Based GPS'). Both the MS-Assisted GPS method and the MS-Based GPS method receive Aiding data transmitted from a predetermined positioning server to locate a mobile communication terminal to obtain GPS radio waves from one or more satellites.

However, the two methods have different points in positioning after acquiring GPS radio waves. In the MS-Assisted GPS method, when the acquired GPS radio wave is transmitted to the communication network, a predetermined positioning server installed in the communication network receives the GPS radio wave to determine the latitude and longitude coordinates of the mobile communication terminal and transmit the GPS radio wave to the mobile communication terminal. On the other hand, the MS-Based GPS method determines the latitude and longitude coordinates by using the GPS radio wave received by the mobile communication terminal, and determines the latitude and longitude coordinates when it is not necessary to update the auxiliary data value or download the map. It is not sent to the server.

The safe driving assistant service is one of the location-based services provided by using a mobile communication terminal and a GPS receiver, and checks the driving speed of a vehicle to provide location information such as sudden curve, accident area, speeding danger area, and fog area while driving. It is a service that helps to drive safely by providing it through LCD screen and voice comment.

2 is an exemplary screen of safe driving information provided by a safe driving assistant service.

As shown in FIG. 2, the safe driving assistant service displays the driving speed and the driving direction of the vehicle on the LCD screen. When the driving speed of the vehicle approaches the speed limit in the section where the speed is limited, the speed limit and the danger of overspeed are indicated. The shape of the sign is displayed on the LCD screen, and the voice indicates the speed limit area. In addition, when approaching a sharp curve area, a dangerous area, and a fog area, a sign shape indicating the sharp curve area, a dangerous area, and a fog area is displayed on the LCD screen. You will be told that you need it. Therefore, the driver can recognize the dangerous information of the driving region in real time through the safe driving assistant service, thereby enabling safe driving.

The existing safe driving assistant service is composed of a mobile communication terminal and a GPS kit by C-GPS (Conventional GPS) to provide a safe driving assistant service. The C-GPS safe driving assistant service downloads road information from all over the country through WIPI (Wireless Internet Platform for Interoperability), stores it in a database, and obtains location information from GPS satellites. To this end, the mobile communication terminal is equipped with WIPI, provides safe driving information using the speaker and the LCD screen of the mobile communication terminal, and the GPS Kit receives navigation data through the GPS receiver and returns to the flash memory. The information is stored and provided to the mobile communication terminal.

Here, the WIPI is a standard specification of the Korean wireless Internet platform and has a characteristic of middleware embedded in a mobile communication terminal, and is used when driving or downloading various applications such as a PC operating system. WIPI can guarantee the compatibility of content between platforms for application developers for terminals, provide port portability to terminal developers, and provide a variety of rich content services to general users.

However, the C-GPS safe driving assistant service has to purchase an expensive GPS Kit, and the process of manipulating the mobile communication terminal and the GPS kit to receive the safe driving assistant service is complicated. In addition, the TTFF takes about several minutes to several ten minutes, and there is a problem that the sensitivity of receiving navigation data from the GPS Kit is weaker than that of the A-GPS method.

On the other hand, in the safe driving assistant service using the MS-Assisted GPS method, when the mobile communication terminal has a built-in GPS receiver and transmits a GPS radio wave received from a GPS satellite to the mobile communication network, the mobile communication service is performed by a predetermined positioning server installed in the mobile communication network. The location of the terminal is measured and transmitted to the mobile communication terminal. In addition, the road information is downloaded through the WIPI installed in the mobile communication terminal to provide a safe driving assistant service.

However, MS-Assisted GPS safe driving assistant service must continuously access the location determination server through the mobile communication network in order to determine the location of the mobile communication terminal, which increases the cost of using the mobile communication network for location tracking. There is a problem in that it is not suitable to provide a location-based service in real time due to a time delay or load in a communication network.

In order to solve this problem, the present invention, when the mobile terminal transmits the terminal information to the positioning server to generate the auxiliary data by using this to transmit to the mobile terminal, the mobile terminal using the received auxiliary data GPS When receiving the radio wave and positioning its own location, and sends the location information for the side to the LBS platform to request safe driving information, the safe driving information providing server generates the safe driving information and transmits it to the mobile communication terminal, An object of the present invention is to provide a method and system for providing a safe driving assistant service using an MS-Based GPS method for outputting safe driving information on a mobile communication terminal.

According to a first object of the present invention, in a mobile communication system including a mobile communication terminal, a positioning server, an LBS platform, and a safe driving information providing server, a safe driving assistant service method using an MS-Based GPS method, (a) Generating auxiliary data in the positioning server using the terminal information received from the mobile communication terminal and transmitting the auxiliary data to the mobile communication terminal; (b) receiving GPS radio waves from a GPS satellite and positioning the mobile communication terminal using the assistance data received from the positioning server; (c) requesting safe driving information at a corresponding location by transmitting the location information to the LBS platform; (d) generating the safe driving information at the corresponding location in the safe driving information providing server receiving the location information from the LBS platform and transmitting the generated safe driving information to the mobile communication terminal; And (e) receiving the safe driving information and outputting the safe driving information on the mobile communication terminal.

According to a second object of the present invention, in the system for providing a safe driving assistant service using the MS-Based GPS method, by using the assistance data received through the mobile communication network to receive the GPS radio wave to position itself A mobile communication terminal for transmitting the location information for the mobile station to the mobile communication network and receiving safe driving information of a corresponding location from a safe driving information providing server; A positioning server for generating the auxiliary data using the terminal information received from the mobile communication terminal and transmitting the generated auxiliary data to the mobile communication terminal; An LBS platform that receives the location information from the mobile communication terminal and transmits the location information to the safe driving providing server, and receives the safe driving information of the corresponding location from the safe driving providing server to the mobile communication terminal; And a safe driving information providing server for receiving the location information from the LBS platform, generating the safe driving information of the corresponding location based on the received location information, and transmitting the generated safe driving information to the mobile communication terminal. -Based GPS system to provide safe driving assistance service.

According to a third object of the present invention, a mobile communication terminal using a safe driving assistant service in an MS-Based GPS type LBS system, comprising: a GPS antenna for receiving GPS radio waves transmitted from one or more satellites; A GPS receiver for calculating location information by using the GPS radio waves received by the GPS antenna; Safe driving information is transmitted to the LBS platform to request safe driving information at a corresponding location, and safe driving information received from a safe driving information providing server is received through a mobile communication network and output on the mobile communication terminal. A flash memory in which a helper application is stored; A display unit for displaying and outputting the safe driving information as an image or a text; A speaker for outputting the safe driving information as a voice; And controlling to transmit terminal information to a positioning server through the mobile communication network, receiving GPS radio waves using auxiliary data received from the positioning server, and positioning the mobile communication terminal for positioning. And a microprocessor configured to drive a helper application to transmit the location information to the LBS platform and to receive the safe driving information through the mobile communication network and to output the location information on the mobile communication terminal. The present invention provides a mobile communication terminal using a safe driving assistant service in a GPS type LBS system.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

3 is a block diagram schematically illustrating a safe driving assistant service system 300 using the MS-Based GPS method according to an exemplary embodiment of the present invention.

As shown in FIG. 3, the safe driving assistant system 300 using the terminal-based GPS method according to the preferred embodiment of the present invention includes a GPS satellite 310, a mobile communication terminal 320, a wireless access network 330, and a mobile terminal. The exchange station 340, the manganese interworking device 350, the location server 360, the LBS platform 370, the safe driving information providing server 380, and the user database 390 may be included.

The mobile communication terminal 320 according to the preferred embodiment of the present invention transmits terminal information (MS information) to the location determination server 360 through the mobile communication network in order to determine the location using the MS-Based GPS method. The location server 360 generates auxiliary data for positioning the mobile communication terminal 320 using the received terminal information and transmits the auxiliary data to the mobile communication terminal 320 through the mobile communication network. The mobile communication terminal 320 receives GPS radio waves from one or more GPS satellites 310 using the received auxiliary data, and extracts navigation data included in the received GPS radio waves to position its location. When the mobile terminal 320 determines its location, the mobile terminal 320 transmits the location information including the latitude and longitude coordinates to the LBS platform 370 through the mobile communication network and requests safe driving information at the corresponding location. The safe driving information is received from the display 380 and displayed, and the safe driving information is output by voice. Here, the mobile communication terminal 320 receives and updates auxiliary data from the positioning server 360 every 30 or 120 minutes, and locates its location at a period of 2 seconds.

The mobile communication terminal 320 according to the preferred embodiment of the present invention is equipped with a safe driving assistant application. The safe driving assistant application transmits the location information for the side in the mobile communication terminal 320 to the LBS platform 370, and receives the safe driving information provided by the safe driving information providing server 380 to receive an image, text, and voice. The safe driving information is outputted to the mobile communication terminal 320 by using the control information.

Mobile communication terminal 320 according to a preferred embodiment of the present invention is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, hand-held PC (Hand-Held PC), GSM (Global System for Mobile) Various wired and wireless communication terminals, such as a phone, a wideband CDMA (W-CDMA) phone, a CDMA-2000 phone, and a mobile broadband system (MBS) phone, may be included. Here, the MBS phone refers to a mobile communication terminal to be used in the fourth generation system currently being discussed.

The mobile communication terminal 320 according to a preferred embodiment of the present invention is a means for accessing the LBS platform 370 and the safe driving information providing server 380 through a mobile communication network. Can be. Here, the web browser may include a WAP (Wireless Application Protocol) browser, ME (Mobile Explorer) and I-mode.

An internal configuration of the mobile communication terminal 320 according to the preferred embodiment of the present invention will be described in detail with reference to FIG. 4.

The wireless access network 330 according to the preferred embodiment of the present invention transmits and receives a radio signal with the mobile communication terminal 320, and comprises a base station transmitter 332 and the base station controller 334.

The base station transmitter 332 not only transmits the location information received from the mobile communication terminal 320 to the base station controller 334 but also performs wired / wireless conversion and transmission and reception of a wireless signal between the mobile communication terminal 320 and the base station controller 334. It is a network endpoint device that performs and is directly connected to the mobile communication terminal 320. The base station controller 334 controls the base station transmitter 332 and allocates and releases radio channels such as paging channels and traffic channels to the mobile communication terminal 320, and transmits the mobile communication terminal 320 and the base station transmitter 332. Output control, soft handoff and hard handoff decision, transcoding and vocoding, operation and maintenance of wireless access network are performed.

The wireless access network 330 according to the preferred embodiment of the present invention may support both a synchronous mobile communication system and an asynchronous mobile communication system. Here, in a synchronous mobile communication system such as CDMA 2000 1X, CDMA 2000 1X EV-DO (Evolution-Data Only), the base station transmitter 332 is a base transceiver station (BTS), and the base station controller 334 is a base station BSC (base station). In the case of an asynchronous mobile communication system such as Wideband Code Division Multiple Access (WCDMA), the base station transmitter 332 is a radio transceiver subsystem (RTS), and the base station controller 334 is a radio network controller (RNC). Of course, the wireless access network 330 according to a preferred embodiment of the present invention is not limited to a synchronous or asynchronous CDMA mobile communication network, but may include an access network of a GSM network and a fourth generation mobile communication system currently being standardized.

Mobile switching center 340 according to a preferred embodiment of the present invention is provided with a plurality of electronic exchange, basic and additional service processing, incoming and outgoing call processing of the subscriber, location registration procedure and handoff procedure processing, interworking function with other network, etc. Do this. The mobile switching center 340 also supports both IS-95 A / B / C systems, third generation and fourth generation mobile communication networks in synchronous and asynchronous mobile communication networks.

To this end, the mobile switching center 340 may include an access switching subsystem (ASS) that performs distributed call processing, an INS (interconnection network subsystem) that performs centralized call processing, and a centralized function of operation and maintenance (CCS). It may include a subsystem such as a Central Control Subsystem (LOC), a Location Registration Subsystem (LRS) that performs a function of storing and managing information on a mobile subscriber. In addition, the mobile switching center 340 may include an Asynchronous Transfer Mode (ATM) switch (not shown) to transmit data in a cell-based packet manner to increase transmission speed and efficiency of line use. Can be.

An interworking function (IWF) 350 according to a preferred embodiment of the present invention includes a wired / wireless network including a mobile communication network, the Internet, a public switched telephone network, a packet switched data network (PSPDN), and the like. Performs an interface function for interworking with a communication network.

A positioning server (PDE) 360 according to an exemplary embodiment of the present invention receives a terminal information after receiving terminal information such as resolution of the wireless access network 330 from the mobile communication terminal 320. The auxiliary data is generated using the information and transmitted to the mobile communication terminal 320. To this end, the positioning server 360 is provided with a reference GPS antenna (not shown), receives the terminal information of the wireless access network 330 from the mobile communication terminal 320, the GPS in the wireless access network 330 Mobile communication by retrieving information (coordinate information, identification code information, etc.) of GPS satellites 310 capable of receiving radio waves to generate auxiliary data and including them in the "Provide Ephemeris" message defined in the IS-801-1 standard. Transmit to terminal 320. That is, the positioning server 360 and the mobile communication terminal 320 may transmit and receive LBS-related data including auxiliary data and the like according to the standard defined in IS-801-1. Here, the terminal information may include pilot chase capability, GPS acquisition capability, location calculation capability, and the like of the terminal.

When the mobile communication terminal 320 receives the "Provide Ephemeris" message, it extracts the information of the GPS satellite 310 included in the message, and searches for the GPS satellite to receive GPS radio waves. After receiving GPS radio waves from one or more GPS satellites 310, the mobile communication terminal 320 determines its location and transmits the location information to the LBS platform 370 through the mobile communication network to request safe driving information. do.

The LBS platform 370 according to the preferred embodiment of the present invention collectively refers to an application server capable of providing various LBS services including a safe driving assistant service to the mobile communication terminal 320. The LBS platform 370 receives the location information from the mobile communication terminal 320 and transmits the location information to the safe driving information providing server 380, and receives the safe driving information of the corresponding location from the safe driving information providing server 380. It transmits to the mobile communication terminal 320 through the mobile communication network. In addition, various functions such as registration, deletion, and modification of various LBS information providing servers including the safe driving information providing server 380 and the charging function for the mobile communication terminal 320 using the LBS service may be performed.

The safe driving information providing server 380 according to an exemplary embodiment of the present invention is a content providing (CP) server that provides an MS-Based GPS service to the mobile communication terminal 320, and moves from the LBS platform 370. Receives the location information of the communication terminal 320, and generates safe driving information of the location based on the received location information and provides it to the mobile communication terminal (320). Here, the safe driving information provided by the safe driving information providing server 380, as described above, may include information such as the driving speed and direction of the vehicle, a sharp curve area, accident area, speeding dangerous area, fog area, and the like. .

In order to provide the safe driving assistant service, the safe driving information providing server 380 may interwork with the user database 390. The user database 390 stores personal information, driving information, and the like of a user who is registered as a member of the safe driving assistant service, and the user's personal information, driving information, etc. are input by the user's selection at the registration stage or after registration. . Here, the driving information is information about a route, driving habits, accident history, etc. that the user frequently drives, and when the information registered in the driving information is information related to the received location information, the safety driving information providing server 380 warns of the warning. Steps may be raised to generate safe driving information and provide the same to the mobile communication terminal 320.

For example, when driving in the area after entering an area where a traffic accident has occurred in the past as driving information or when driving in a time zone where it is easy to be drowsy while driving as driving information, driving safety information The providing server 380 may set the user to easily recognize the safe driving information by increasing the volume or causing the display screen to blink while providing the safe driving information of the corresponding area to the mobile communication terminal 320.

The safe driving information providing server 380 according to an exemplary embodiment of the present invention may record and transmit safe driving information in a data burst message (DBM). Here, the DBM is a message defined in IS-2000 and has a different structure for each access channel, paging channel, and traffic channel. The safe driving information providing server 380 may code the safe driving information to be transmitted to the mobile communication terminal 320 in a DBM structure and transmit the safe driving information to the mobile communication terminal using a push technique. Here, the push technique is a technique used in a short message service (SMS), etc., and refers to a transmission technique that unilaterally receives the corresponding information regardless of whether the mobile communication terminal 320 is allowed to receive a call.

In addition, the safe driving information providing server 380 may allocate a preset Teleservice Identifier (TI) to transmit to the mobile communication terminal 320 to indicate that the transmitting DBM is a message for the safe driving assistant service. The 320 may receive the DBM and analyze the TI to confirm that the message is a message for the safe driving assistance service.

On the other hand, the safe driving assistant service system 300 according to a preferred embodiment of the present invention may include a Short Message Service Center (SMSC) (not shown) to transmit the safe driving information to the DBM. In this case, the SMSC receives the DBM including the safe driving information provided by the safe driving information providing server 380 and transmits the received DBM to the mobile communication terminal 320 through the mobile communication network. Determine the telephone number of 320, and identify the identification code of the wireless access network 330 where the mobile communication terminal 320 is located in conjunction with the Home Location Register (HLR) (not shown), DBM to the mobile communication terminal 320 Can store and forward.

4 is a block diagram illustrating an internal configuration of a mobile communication terminal 320 according to an exemplary embodiment of the present invention.

As shown in FIG. 4, the mobile communication terminal 320 according to the preferred embodiment of the present invention includes a GPS antenna 400, a GPS receiver 402, a flash memory 404, and an EEPROM (Electrically Erasable and Programmable ROM). 406, ROM 408, key input unit 410, display unit 412, microprocessor 414, digital signal processing unit 416, baseband conversion unit 418, RF signal processing unit 420, speaker 422, microphone 424, RF antenna 426, and the like.

The GPS antenna 400 according to the preferred embodiment of the present invention receives GPS radio waves from one or more GPS satellites 310 and transmits them to the GPS receiver 402. The GPS antenna 400 has a semi-circular directivity above the ground plain and receives a priority source polarization transmitted from a GPS satellite.

The GPS receiver 402 according to the preferred embodiment of the present invention analyzes the GPS data included in the GPS radio wave received by the GPS antenna 400 and outputs the latitude and longitude location information and time information of the mobile communication terminal 320 to the microprocessor 414. To pass). Here, the GPS radio wave transmitted from the GPS satellites 310 includes an ID code, an orbital position, and visual information of the GPS satellites 310, and the GPS receiver 402 includes a plurality of GPS satellites 310. The position coordinates of the mobile communication terminal 320 are calculated by calculating a difference in arrival speed between radio waves emitted. On the other hand, without the GPS receiver 402 as a separate device, it can perform the function of the GPS receiver 402 in the modem chip in charge of digital signal processing and call processing.

The flash memory 404 according to the preferred embodiment of the present invention is a non-volatile memory having a high data processing speed, and has an operating system (OS) having a real-time processing function for the operation of the mobile communication terminal 320. Operating System) software and call processing software that processes functions related to call processing.

Meanwhile, the safe driving assistant application according to the preferred embodiment of the present invention may also be stored in the flash memory 404. When the safety driving assistant application stored in the flash memory 404 is driven, the mobile communication terminal 320 transmits the location information for the side to the LBS platform 370 as described above, and requests the safety driving information at the corresponding location. When the safe driving information provided by the safe driving information providing server 380 is received through the mobile communication network, the safe driving information is notified by using the display unit 412 and the speaker 422.

Here, the safety driving assistant application may be coded in C language or implemented as a virtual machine (VM). When the safe driving assistant application is coded in the C language, it is possible to link with the OS software mounted in the flash memory 404, so that the OS software delivers the received safe driving information to the safe driving assistant application.

On the other hand, when the safe driving assistant application is implemented as a virtual machine, the OS software transmits the received safe driving information to the wireless Internet protocol. The wireless Internet platform delivers the received safe driving information to the safe driving assistant application.

Here, the wireless Internet platform is a software that has a function to use the wireless Internet in the mobile communication terminal 320, can be mounted in the flash memory 404. The wireless Internet platform may include WIPI, WI-TOP (Wireless Internet-Terminal Open Platform) based on WIPI by SK Telecom, and WIPI and WI-TOP are coded in Java language. can do.

The EEPROM 406 according to a preferred embodiment of the present invention is a non-volatile memory in which data for storage, such as NAM (Number Assignment Module) parameters, telephone numbers, names, short messages, and the like, is stored as a memory that can be electrically erased or stored again. The ROM 408 stores program variables and state information generated by driving various software mounted in the flash memory 404. Meanwhile, the above-described NAM parameters and data for storage may be stored in a part of the flash memory 404 instead of the EEPROM 406.

The key input unit 410 according to a preferred embodiment of the present invention includes a numeric key for inputting a number such as a telephone number and a menu button for selecting a menu or inputting a command. The display unit 412 displays the overall operation state of the mobile communication terminal, including the degree of use of power, the reception strength of the radio wave, the date and time, and displays the safety driving information received through the mobile communication network as a text or an image. The display unit 412 may be configured of any one of a super twisted nematic liquid crystal display (STN LCD), a thin film transistor liquid crystal display (TFT LCD), a plasma display panel (PDP), and an organic electroluminescence display (ELD). .

The microprocessor 414 according to the preferred embodiment of the present invention controls the overall operation of the mobile communication terminal 320. The microprocessor 414 controls the terminal information to be transmitted to the positioning server 360 through the mobile communication network, receives auxiliary data from the positioning server 360, and receives GPS radio waves from the one or more GPS satellites 310. Control the location of the mobile communication terminal 320, and drive the safe driving assistant application to transmit the location information for the location to the LBS platform 370 to request safe driving information and the corresponding from the safe driving information providing server 380 Receiving the safe driving information of the position and controls to inform the corresponding safe driving information by using the display unit 412 and the speaker 422. In addition, the data is transmitted to the baseband converter 312 to convert the transmission data into a signal used in the mobile communication network (TX DATA).

The digital signal processor 416 according to an exemplary embodiment of the present invention encodes and decodes voice and data, functions as an equalizer for removing multipath noise, and processes acoustic data. Digital signal processing processor. In addition, the digital signal processor 416 exchanges voice data SPEECH with the baseband converter 418 and receives data from the baseband converter 418 (RX DATA). The digital signal processor 416 performing the above-described function includes an MSM (Mobile Station Modem) chip manufactured by Qualcomm.

The baseband converter 418 according to an exemplary embodiment of the present invention transmits signals transmitted and received between the digital signal processor 416, the RF signal processor 420, the speaker 422, and the microphone 424 to the baseband signal. And converts the digital-to-analog conversion (DAC) and analog-to-digital conversion (ADC). In addition, the baseband converter 418 transmits the transmission data (TXIQ) to the RF signal processor 420, controls the power of the RF signal processor 420 (POWER) or automatically controls the gain (AGC) The RF signal processor 420 receives the received signal RXIQ.

The RF signal processor 420 according to the preferred embodiment of the present invention converts the transmission data TXIQ into an RF signal and outputs the RF signal to the RF antenna 426, or receives an RF signal received from the RF antenna 426. ) Is output to the baseband converter 418.

The speaker 422 according to the preferred embodiment of the present invention outputs safety driving information received through a mobile communication network as voice, and outputs acoustic data transmitted from the baseband converter 418 as an audible sound. The microphone 424 receives voice or sound and converts it into an electrical signal, and the RF antenna 426 transmits an RF signal to the air or transmits an RF signal received from the air to the RF signal processor 420.

5 is a flowchart illustrating a safe driving assistant service method using an MS-Based GPS method according to an exemplary embodiment of the present invention.

As shown in FIG. 5, when the mobile communication terminal 320 of a driving vehicle is connected to the safe driving assistant service through a mobile communication network to receive the safe driving assistant service, the mobile communication terminal 320 uses the MS-Based GPS method. In order to determine its location by using the terminal information is transmitted to the location determination server 360 through the mobile communication network (S500). In this case, the terminal information may include a pilot chase capability, a GPS acquisition capability, a position calculation capability, and the like of the mobile communication terminal 320 as described above. The positioning server 360 generates auxiliary data including coordinate information, identification code information, etc. of the GPS satellite 310 for positioning of the mobile communication terminal 320 using the received terminal information and transmits the generated data to the mobile communication terminal. (S502).

The mobile communication terminal 320 receives GPS radio waves from one or more satellites 310 using the received auxiliary data and extracts navigation data to position its position (S504). When the location of the mobile communication terminal 320 is located, the location information including the latitude and longitude coordinates is transmitted to the LBS platform 370 through the mobile communication network to request safe driving information at the corresponding location (S506). Here, the safe driving information may include information such as a driving speed and direction of the vehicle, a sharp curve area, an accident accident area, a speeding danger area, and a fog area as described above.

The LBS platform 370 transmits the location information of the mobile communication terminal 320 to the safe driving information providing server 380, and the safe driving information providing server 380 stores the received location information and the user database 390. Using the user's personal information, driving information, etc. to generate safe driving information at the corresponding location and transmits it to the mobile communication terminal 320 through the mobile communication network (S508). Here, the safe driving information providing server 380 may record the safe driving information in the DBM and transmit the safe driving information to the SMSC, and the SMSC may receive the DBM including the safe driving information and transmit the received DBM to the mobile communication terminal 320 through the mobile communication network. .

When the mobile communication terminal 320 receives the safety driving information of the corresponding position, the safety driving information is output through the display unit 412 and / or the speaker 422 (S510). In this case, the display unit 412 displays the safe driving information of the corresponding location by displaying an image or text, and the speaker 422 informs the safe driving information of the corresponding location by voice. After receiving and outputting safe driving information from the mobile communication terminal 320 and terminating the connection with the mobile communication network, the safe driving assistant service ends (S512).

On the other hand, in the case where the safe driving assistant service is continuously used while driving the vehicle, the mobile communication terminal 320 periodically positions its location (S514). When positioning the position of the mobile communication terminal 320, it is determined whether the position for the new position has left the area to which the safe driving information is applied (S516). If the new location is within the area to which the safe driving information is applied, the process of positioning its own location is repeated periodically. If the new location is outside the area to which the safe driving information is applied, the mobile communication terminal 320 In order to access the LBS platform 370 again to transmit the location information of the mobile communication terminal 320 and to request safe driving information, the safe driving information providing server 380 transmits the new safe driving information of the corresponding location to the mobile communication terminal. It is provided to (320).

The above description is merely illustrative of the present invention, and those skilled in the art to which the present invention pertains may various modifications without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto shall be construed as being included in the scope of the present invention.

As described above, the present invention does not need to provide a separate GPS receiver using the MS-Based GPS method, and has an effect that the reception sensitivity of the navigation data is much better than that of the C-GPS method.

In addition, since the mobile communication terminal directly locates its location, there is no need to continuously access the location determination server, thereby reducing the cost of using the mobile communication network and preventing time delay or load in the mobile communication network. There is an advantage in that it can provide a driving helper service.

Claims (31)

In a safety driving assistant service method using an MS-Based GPS method in a mobile communication system including a mobile communication terminal, a location determination server, an LBS platform (Location Based Services Platform) and a safe driving information providing server, (a) generating assistance data from the positioning server using MS information received from the mobile communication terminal and transmitting the generated data to the mobile communication terminal; (b) receiving GPS radio waves from a GPS satellite and positioning the mobile communication terminal using the assistance data received from the positioning server; (c) requesting safe driving information at a corresponding location by transmitting the location information to the LBS platform; (d) generating the safe driving information at the corresponding location in the safe driving information providing server receiving the location information from the LBS platform and transmitting the generated safe driving information to the mobile communication terminal; And (e) receiving the safe driving information and outputting the safe driving information on the mobile communication terminal; Safe driving assistant service method using an MS-Based GPS method comprising a. The method of claim 1, The method, (f) periodically positioning the location of the mobile communication terminal, if the newly located location is out of the region to which the safe driving information is applied, accesses the LBS platform again and requests the safe driving information of the newly located location; Receiving safety driving information of the newly located position from the safety driving information providing server and outputting safety driving information of the newly positioned position on the mobile communication terminal; Safe driving assistant service method using an MS-Based GPS method, characterized in that it further comprises. The method according to claim 1 or 2, The terminal information of step (a) includes a pilot chase capability, GPS acquisition capability, and position calculation capability of the mobile communication terminal. Way. The method according to claim 1 or 2, The auxiliary data of step (a) comprises the coordinate information and identification code information of the GPS satellites, the safe driving assistant service method using the MS-Based GPS method. The method according to claim 1 or 2, The mobile communication terminal receives the GPS radio wave from one or more of the GPS satellites using the assistance data, extracts navigation data, and locates its own location using the MS-Based GPS method. . The method according to claim 1 or 2, The safe driving information providing server generates the safe driving information at the corresponding location by using the received location information and the user's personal information and driving information stored in the user database and transmits the generated safe driving information to the mobile communication terminal. Safe driving assistant service method using the MS-Based GPS method. The method according to claim 1 or 2, The safe driving information is a safe driving assistant service method using the MS-Based GPS method, characterized in that the information including the driving speed and direction of the car, a sharp curve area, accident occurrence area, speeding danger area and fog area. The method according to claim 1 or 2, The safe driving information is a safe driving assistant service method using an MS-Based GPS method, characterized in that recorded in the DBM (Data Burst Message) and transmitted to the mobile communication terminal. The method of claim 8, Safe driving assistant using the MS-Based GPS method characterized in that for transmitting the DBM recorded the safe driving information to a Short Message Service Center (SMSC), and transmitting the DBM received from the SMSC to the mobile communication terminal Service method. The method according to claim 1 or 2, When the mobile communication terminal receives the safe driving information, the safe driving assistant service method using the MS-Based GPS method, characterized in that for outputting the safe driving information using the display and / or speaker of the mobile communication terminal. The method of claim 10, The display unit is a safe driving assistant service method using the MS-Based GPS method, characterized in that for displaying the safe driving information to display the image or text. The method of claim 10, The speaker is a safe driving assistant service method using the MS-Based GPS method, characterized in that for outputting the safe driving information as a voice. In the system that provides a safe driving assistant service using the MS-Based GPS method, Receiving GPS radio waves using the aiding data received through the mobile communication network to locate its own location and transmit the location information for the side to the mobile communication network, and the safe driving information providing server A mobile communication terminal receiving from the; A positioning server (PDE) for generating the auxiliary data using the terminal information received from the mobile communication terminal and transmitting the generated auxiliary data to the mobile communication terminal; The LBS platform receives the location information from the mobile communication terminal and transmits the location information to the safe driving information providing server, and receives the safe driving information of the corresponding location from the safe driving information providing server to the mobile communication terminal. Services Platform); And The safe driving information providing server for receiving the location information from the LBS platform, generates the safe driving information of the corresponding location based on the received location information and transmits it to the mobile communication terminal. System for providing a safe driving assistant service using the MS-Based GPS method, characterized in that it comprises a. The method of claim 13, The system, A user database interworking with the safety driving information providing server and storing personal information and driving information of the safety driving assistant service user; And Short Message Service Center (SMSC) for receiving the safe driving information provided by the safe driving information providing server and transmitting the safe driving information to the mobile communication terminal through a mobile communication network. System for providing a safe driving assistant service using an MS-Based GPS method, characterized in that it further comprises. The method according to claim 13 or 14, The safe driving assistant transmits the location information for the mobile communication terminal to the LBS platform, and receives the safe driving information provided by the safe driving information providing server and outputs it on the mobile communication terminal. System that provides a safe driving assistant service using the MS-Based GPS method characterized in that the application is mounted. The method according to claim 13 or 14, The mobile communication terminal and the location determination server transmits and receives the LBS-related data including the auxiliary data according to the standard defined in IS-801-1. Providing system. The method of claim 14, The driving information stored in the user database includes the information regarding a route, driving habits, and accident history frequently driven by the safety driving assistant service user, using the MS-Based GPS method. Providing system. The method of claim 17, The safe driving information providing server, when the information registered in the driving information is information related to the received location information, raises the warning level to generate the safe driving information and transmits the MS to the mobile communication terminal. -Based GPS system to provide safe driving assistance service. The method according to claim 13 or 14, The safe driving information providing server codes the safe driving information in a DBM (Data Burst Message) structure and transmits the safe driving information to the mobile communication terminal using a push technique. System that provides safe driving assistant services. The method according to claim 13 or 14, The safe driving assistant generated by the safe driving information providing server includes a TI (Teleservice Identifier) information for indicating that the message for the safe driving assistant service is safe driving assistant using the MS-Based GPS method System that provides services. The method of claim 14, The SMSC receives the DBM including the safe driving information and stores and forwards the DBM to the mobile communication terminal. The system provides a safe driving assistant service by using the MS-Based GPS method. The method according to claim 13 or 14, The mobile communication terminal may be a PDA (Personal Digital Assistant), a cellular phone, a Personal Communication Service (PCS) phone, a Hand-Held PC (GSM) phone, a Global System for Mobile (GSM) phone, a Wideband CDMA (W-CDMA) phone. And a CDMA-2000 phone and a MBS (Mobile Broadband System) phone. The method according to claim 13 or 14, The mobile communication terminal is provided with a web browser for accessing a wireless internet as a means for accessing the LBS platform and the safe driving information providing server through a wireless internet network. System that provides safe driving assistant services. The method of claim 23, The web browser is a system for providing a safe driving assistant service using the MS-Based GPS method, characterized in that it comprises at least one of a WAP (Wireless Application Protocol) browser, ME (Mobile Explorer) and I-mode. A mobile communication terminal using a safety driving assistant service in an MS-Based GPS location based services (LBS) system, A GPS antenna for receiving GPS radio waves transmitted from one or more satellites; A GPS receiver for calculating location information by using the GPS radio waves received by the GPS antenna; The safe driving assistant transmits the location information to the LBS platform to request safe driving information at the corresponding location, and receives the safe driving information provided by the safe driving information providing server through a mobile communication network and outputs it on the mobile communication terminal. A flash memory in which an application is stored; A display unit for displaying and outputting the safe driving information as an image or a text; A speaker for outputting the safe driving information as a voice; And Control to transmit MS information to the location determination server through the mobile communication network, receive GPS radio waves using the aiding data received from the location determination server, and locate the location of the mobile communication terminal. And a microprocessor that controls the safe driving assistant application to transmit the location information to the LBS platform and to receive the safe driving information through the mobile communication network and output the location information on the mobile communication terminal. Mobile communication terminal using a safe driving assistant service in the MS-Based GPS type LBS system comprising a. The method of claim 25, The GPS receiver is a mobile communication terminal using a safety driving assistant service in the MS-Based GPS type LBS system, characterized in that installed in the modem chip for digital signal processing and call processing. The method of claim 25, The flash memory stores an operating system (OS) software having a real-time processing function for the operation of the mobile communication terminal and call processing software for processing functions related to call processing. A mobile communication terminal using a safe driving assistant service in a GPS type LBS system. The method of claim 27, The safe driving assistant application is a mobile communication terminal using a safe driving assistant service in the LBS system of the MS-Based GPS method, characterized in that the coding (Coding) in one or more languages of C language or Java (Java) language. The method of claim 28, The operating system software, when the safe driving assistant application is coded in the C language, safe driving assistant service in the MS-Based GPS type LBS system, characterized in that for transmitting the safe driving information to the safe driving assistant application Mobile communication terminal to use. The method of claim 28, When the safe driving assistant application is coded in the Java language, the operating system software transmits the received safe driving information to a wireless internet platform embedded in the mobile communication terminal, and transmits the safe driving information to the wireless internet platform. A mobile communication terminal using a safe driving assistant service in the LBS system of the MS-Based GPS system, characterized in that the transfer to the safe driving assistant application. The method of claim 30, The wireless Internet platform is a mobile communication terminal using a safety driving assistant service in the MS-Based GPS LBS system, characterized in that it comprises a Wireless Internet Platform for Interoperability (WIPI) or a Wireless Internet-Terminal Open Platform (WI-TOP).

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