KR200394925Y1 - System for updating automatically database in global positioning system terminal - Google Patents

Abstract

The present invention relates to a system for automatically updating the database of the GPS terminal, DB management server for providing an upgraded database including location information to a computer installed in a specific place via the Internet network; A client PC for downloading an upgraded database including location information provided from the DB management server through an internet network and storing the upgraded database; An RF modem for wirelessly transmitting an upgraded database stored in the client PC to the outside; And a GPS terminal receiving the upgraded database transmitted from the RF modem and transmitting information about a database version including self-stored location information to the RF modem. Therefore, according to the present invention configured as described above, in order to update the database of GPS, the latest upgraded database including the location information can be easily updated in real time without the complicated process of disconnecting the GPS terminal installed in the vehicle and connecting it to a specific computer. Can be.

Description

System for automatically updating the database of the PCS terminal {SYSTEM FOR UPDATING AUTOMATICALLY DATABASE IN GLOBAL POSITIONING SYSTEM TERMINAL}

The present invention relates to a system for automatically updating the database of the GPS terminal, and more particularly, when the vehicle equipped with the GPS terminal enters a specific location, such as gas station and charging station, the RF transceiver and the specific location of the GPS terminal The present invention relates to a system for automatically updating a database of a GPS terminal capable of updating a latest database including location information through wireless communication between RF modems installed in the system.

Recently, a GPS (Global Positioning System) terminal for checking a vehicle's current position and moving speed or determining a moving path is mounted on a vehicle to guide a vehicle driver to the driving direction and driving method. The GPS terminal digitizes the location of roads and surveillance cameras on the map and stores them in disk, etc., and receives radio waves indicating latitude, longitude, altitude, etc. After the calculation, the map information including the current location is provided to the driver of the vehicle.

In other words, the GPS terminal is a satellite transmission device that provides information such as its current location, direction, speed, and time, and many consumers use the terminal for safety operation information, navigation, telematics, and local based service (LBS). I use it. In particular, one of the essential parts of the product is the upgraded database (Database) information, the database (DB) information should be updated through a computer, etc. every two weeks as early as six months later.

Conventionally, a system and method for updating a database (DB) regarding specific location information of such a GPS terminal are disclosed in Korean Patent Laid-Open No. 2004-0055201.

As shown in FIG. 1, a system 10 applied to a conventional method of updating a database (DB) relating to specific location information includes a vehicle GPS terminal 21 and a user PC 30 mounted in a vehicle 20. And an information providing server 40 which communicates with the user PC 30 through the Internet network 35, and provides the latest information from the information providing server 40 to provide specific location information to the vehicle GPS terminal 21. As a medium for obtaining update information, a smart card 25a or a USB hard drive 25b is used.

That is, the vehicle GPS terminal 21 mounted in the vehicle 20 receives the GPS data of the vehicle 20 in operation from the GPS satellites 50, and the specific position from the smart card 25a or the USB hard drive 25b. The function information (eg, accident occurrence area, gas station area, speeding danger area and surveillance camera location) and location information based on latitude and longitude values are received.

However, in the conventional method of updating a database of specific location information, the smart card 25a is stored in a predetermined terminal (for example, a dummy terminal) of the PC 30 in which the user stores the latest update information about the location information. Or inserting the USB hard drive 25b into the USB communication port (not shown) of the PC 30.

That is, using the conventional system and method for updating the database of the specific location information as described above, users use a separate smart card to update the database information related to the location information in the GPS terminal installed in their vehicle Or, after separating the GPS terminal installed in the vehicle from the vehicle, it is inconvenient to update the latest database information stored in a specific homepage by interfacing with a specific computer and a communication cable such as RS-232 or USB.

In addition, the use of the above-described inconvenient update process, users of GPS terminals that need to update every two weeks as early as six months later do not perform the latest update in a timely manner, and thus do not receive accurate location information, and are able to use the computer skillfully. Users of GPS terminals not handled have a problem that they are not properly provided with the latest update information.

The present invention has been made to solve the above problems, the purpose of which is when the vehicle equipped with the GPS terminal enters a specific location, such as gas station and charging station, the RF transceiver of the GPS terminal and the RF installed at a specific location The present invention provides a system for automatically updating a database of a GPS terminal capable of updating a latest database including location information through wireless communication between modems.

The system for automatically updating the database of the GPS terminal according to the present invention for achieving the above object is composed of a DB management server, the Internet network, a gas station and a GPS satellite when the vehicle equipped with the GPS terminal in the gas station, the A system for automatically updating a database of a GPS terminal, comprising: a DB management server (100) for providing an upgraded database including location information to a computer installed at a specific place through an internet network; A client PC 220 for downloading an upgraded database including location information provided through the Internet from the DB management server 100 and storing the upgraded database in the storage unit 223; An RF modem 230 for wirelessly transmitting an upgraded database stored in the client PC 220 to the outside; And a GPS terminal 240 that receives the upgraded database transmitted from the RF modem 230 and transmits information about the database version including the self-stored location information to the RF modem 230.

Hereinafter, with reference to the accompanying drawings will be described in detail a system for automatically updating the database of the GPS terminal according to the present invention.

Figure 2a is a schematic configuration diagram showing a system for automatically updating the database of the GPS terminal according to the present invention, Figure 2b is a configuration specifically showing a DB management server, a client PC and an RF modem applied to the system according to the present invention Figure 2c is a block diagram showing in detail the GPS terminal applied to the system according to the present invention.

As shown in FIG. 2A, a system for automatically updating a database of a GPS terminal according to the present invention includes a gas station including a DB management server 100, an internet network 150, a client PC 220, and an RF modem 230. Base station 210, GPS terminal 240, GPS satellite 250 and beacon 260.

Then, in the present specification, when a vehicle equipped with the GPS terminal 240 enters the gas station 200 in which the gas station base station 210 and the beacon 260 including the client PC 220 and the RF modem 230 enter, Since the system according to the present invention is applied, the GPS terminal 240 mounted in the vehicle will be described with the concept included in the gas station 200.

Here, the DB management server 100 is a server that provides the latest upgraded database (DB) including location information (eg, gas station and charging station location, accident occurrence area, speeding danger area and surveillance camera location, etc.), the administrator When the database is upgraded, the upgraded database is automatically transmitted to client PCs 220 installed at gas stations and charging stations in various places.

That is, as shown in FIG. 2B, the DB management server 100 inputs an interface 101 for exchanging information with the client PC 220 through the Internet network 150, data related to the location information, and the like. The input unit 102, the storage unit 103 storing data related to the location information input from the input unit 102, various application programs, and the like, and the information desired by the administrator or the upgraded database requested from the client PC 220. To control the output unit 104 and the functions of the interface 101 and the units 102 to 104 to transmit a database including the latest upgraded location information automatically and according to a request from the client PC 220. It consists of a control unit 105.

In this case, the Internet network 150 includes an information communication network such as a TCP / IP protocol that can be wired and a WAP protocol that can be wirelessly connected.

On the other hand, the client PC 220 in the gas station 200 to automatically download and maintain the latest upgraded database (DB) including the location information provided from the DB management server 100 via the Internet network 150 As an installed computer, an input unit for receiving various data such as an interface 221 for exchanging information with the DB management server 100 through the Internet network 150, customer information, and an upgraded database from the DB management server 100. 222, a storage unit 223 for storing software and various applications related to the latest upgraded database inputted from the input unit 222, an output for outputting information desired by the administrator of the client PC 220 or the latest upgraded database The latest upgrade including the location information by controlling the functions of the unit 224 and the interface 221 and each of the units 222 to 224. Emitter consists of the base to the control unit 225 to transmit the RF modem 230 through the communication.

The RF modem 230 transmits data stored in the client PC 20, that is, wirelessly transmits and controls the latest upgraded database to the GPS terminal 240 and the beacon 260 installed in the vehicle entering the gas station 200. As an apparatus, an interface 231 for exchanging information with a client PC 220, an input unit 232 for receiving various data such as a latest upgraded database transmitted from the client PC 220, and input from the input unit 232 In the storage unit 233, the GPS terminal 240 and the beacon 260, which stores the application program related to the latest upgraded database, a unique number table for the GPS terminal 240 installed in each vehicle, and location data for beacons. RF transceiver 234 for wirelessly transmitting and receiving the latest upgraded database, and the functions of the interface 231, the units 232 and 233, and the RF transceiver 234 to control It consists of the enhanced database to the control unit 235 to transmit the GPS device 240 and the beacon 260. The

In this case, the RF modem 230 includes a power supply unit for supplying power to each component and an antenna for transmitting and receiving various signals, the RF transceiver 234 is a VCO (Voltage Controlled Oscillator) for generating a specific frequency band; Voltage controlled oscillator), but since it is a general known configuration, a detailed description thereof will be omitted.

On the other hand, as shown in Figures 2a and 2c, the GPS terminal 240 when entering the gas station 200, the information on the database (DB) version including the location of the GPS terminal 240 itself and the location information stored therein A terminal for wirelessly transmitting to the RF modem 230 to automatically update the latest upgraded database (DB) including the location information provided from the client PC 220, the location information and its own stored database version RF transceiver 241 for transmitting and receiving the latest upgraded database including information and location information, GPS receiver 242 for receiving location data from GPS satellites 250, the database of the GPS terminal 240 itself ( DB) version information and the main storage unit 243a, RF transceiver 241 for storing the latest upgraded database and various applications from the RF modem (230) Temporary storage unit 243b which secures a space for temporarily storing the latest upgraded database from the RF modem 230 in preparation for an error occurring during the transmission and reception between the RF modem 230 and an error occurring when updating the latest upgraded database. ), An output unit 244 for voice output and display of location information (eg, gas station and charging station locations, accident occurrence areas, over-hazardous areas, and surveillance camera locations, etc.) according to the latest upgraded database; 244 is configured to control each function of the 244 to update the latest upgraded database transmitted from the RF modem 210.

At this time, the GPS satellite 250 calculates the position data of each GPS terminal 240 in real time.

On the other hand, the beacon 260 is used when the vehicle equipped with the GPS terminal 240 is located in a closed place, etc. to receive a GPS signal from the GPS satellite 250, through a wireless communication with the RF modem 230 Receiving the latest upgraded database, the function of tracking whether the vehicle equipped with the GPS terminal 240 entered or exited the gas station 200 in real time, and the repeater for extending the transmission and reception area of the gas station base station 210 As a device that serves, it includes the same configuration as the above-described RF modem 230, a detailed description thereof will be omitted.

Hereinafter, a method of automatically updating the database of the GPS terminal through a system for automatically updating the database of the GPS terminal according to the present invention will be described with reference to FIGS. 3 to 6.

3 is a flowchart showing a method of automatically updating a database of a GPS terminal according to the present invention, Figure 4 is a method for a client PC applied to the system according to the present invention to receive the latest upgraded database from the DB management server 5 is a flowchart illustrating a method for reducing the time required for updating between a client PC and a GPS terminal applied to a system according to the present invention, and FIG. 6 is an RF modem applied to a system according to the present invention. A flowchart illustrating a method of solving a problem about occurrence of a communication error occurring between GPS terminals.

First, as shown in FIG. 3, a gas station 200 having a gas station base station 210 including a client PC 220 and an RF modem 230 updated with the latest upgraded database provided from the DB management server 100 is installed. In step S310, a vehicle equipped with the GPS terminal 240 is entered.

At this time, the GPS terminal 240 automatically recognizes the entry into the gas station 200 through the GPS receiver 242 and checks its own location information, and includes a database version including the location information previously stored in the main storage unit 243a. This is transmitted to the RF transceiver 234 of the RF modem 230 through the RF transceiver 241 (S320).

In this case, depending on whether the RF transceiver 234 in the RF modem 230 responds (S330), if the RF modem 230 is installed in the gas station 200 and does not respond, the GPS terminal 240 in the vehicle Periodically transmits a database version including location information pre-stored in the main storage unit 243a until the gas station 200 leaves, and when the RF modem 230 is installed and responds to the gas station 200, the RF modem ( 230 transmits the latest upgraded database including the location information from the client PC 220 to the GPS terminal 240 through the RF transceiver 234 (S340).

Thereafter, the GPS terminal 240 compares the database version including the location information pre-stored in the main storage unit 243a with the latest upgraded database version transmitted through the RF modem 230, and whether the update of the database is necessary. That is, it is determined whether the versions of the database match each other (S350).

As a result of the determination in step S350, if the database version previously stored in the main storage unit 243a of the GPS terminal 240 and the version of the latest upgraded database from the RF modem 230 match, the GPS terminal 240 updates the database. If the mode is not entered, and the database version previously stored in the main storage unit 243a of the GPS terminal 240 and the version of the latest upgraded database from the RF modem 230 do not match, that is, if there is a latest upgraded database, The GPS terminal 240 enters the database update mode and transmits a signal to the RF modem 230 indicating that the database update mode is entered, that is, the versions do not coincide with each other (S360).

Thereafter, the RF transceiver 234 of the RF modem 230 and the RF transceiver 241 of the GPS terminal 240 exchange the latest upgraded database and update signals with each other, and the main storage unit 243a of the GPS terminal 240. The database stored in is updated with the latest upgraded database from the RF modem 230 (S370).

Then, after completing the database update through the step S370, the database update mode is released and initialized (S380).

Hereinafter, the method in which the client PC 220 receives the latest upgraded database from the DB management server 100 in step S310 (see FIG. 3 and FIG. 4).

That is, as shown in FIG. 4, the user of the client PC 220 executes a program of a specific homepage associated with the upgraded database (S301).

Thereafter, the user of the client PC 220 accesses the DB management server 100 by inputting a registered ID and password (S302).

After connecting to the DB management server 100, the client PC 200 determines whether or not the latest upgraded database version including the location information (S303), if the latest upgraded database version does not exist, Maintaining the version as it is, and if the latest upgraded database version exists, the version is downloaded to the storage unit 223 of the client PC 220 (S304).

That is, by repeating steps S301 to S304 periodically, the client PC 220 maintains the latest upgraded database version provided from the DB management server 100.

On the other hand, through the step S350, the client PC 220 compares the database version transmitted from the GPS terminal 240 via the RF modem 240 with the latest upgraded database version previously stored in the storage unit 223, the latest When the upgraded database needs to be updated, the following method is used to shorten the time required for updating. Hereinafter, a method for shortening the time required for updating the latest upgraded database will be described (FIG. 3). Ⓨ and FIG. 5).

As shown in FIG. 5, the client PC 220 is received from the DB management server 100 and transmitted from the GPS terminal 240 through the latest upgraded database version previously stored in the storage unit 223 and the RF modem 240. By comparing the updated database versions, when an update of the latest upgraded database exists, that is, when a newly changed database exists in addition to the previously stored database, only the newly changed information, that is, the latest upgraded database information is collected (S351).

Thereafter, the client PC 220 creates the changed database information by using the latest upgraded database information collected through the step S351 (S352).

Next, the client PC 220 creates a script file for updating the upgraded database to be applied to the GPS terminal 240 by using the changed database information (S353).

That is, after the script file is created in step S353, the signal for entering the database update mode in step S360 described above is transmitted to the RF modem 230, and only the latest upgraded database is updated using the script file. .

On the other hand, through the step S370, the RF modem 230 and the GPS terminal 240 in the process of updating the database to the latest version while exchanging the latest upgraded database and update signal, an RF transmission and reception error occurs, and updated to the latest version In the meantime, if the vehicle equipped with the GPS terminal 240 is out of the gas station 200, there is a problem that the update is not made completely. Hereinafter, a method of solving the problem of the occurrence of the error will be described. And FIG. 6).

As shown in FIG. 6, the GPS terminal 240 secures a temporary storage unit 243b to receive and store the latest upgraded database information from the RF modem 230 through the RF transceiver 241 (S371).

Thereafter, the GPS terminal 240 requests the latest upgraded database from the RF modem 230 (S372), and then receives the latest upgraded database transmitted through the RF transceiver 234 of the RF modem 230. The temporary storage unit 243b secured through S371 is stored (S373).

Next, the latest upgraded database received from the RF modem 230 is analyzed to determine whether an error exists (S374), and if an error exists, the process returns to the step S372 and the latest upgrade to the RF modem 230. Re-requested the database (S374). In addition, if there is no error, it is determined whether all of the latest upgraded databases have been received. If all of the latest upgraded databases have not been received, the process returns to step S373 and waits until all reception is completed (S375).

As a result of the determination of step S375, when all of the latest upgraded databases have been received, the GPS terminal 240 stores the latest upgraded database stored in the temporary storage unit 243b in which the database updated through the step S370 is stored. Copied to section 243a, the latest upgraded database is updated (S376).

Thereafter, after the latest upgraded database stored in the main storage unit 243 of the GPS terminal 240 is normally updated, the upgraded database stored in the temporary storage unit 243b is deleted (S377).

That is, the above-described steps S371 to S377 can solve the problem of a communication error occurring in the process of updating the latest upgraded database between the RF modem 230 and the GPS terminal 240.

Although the present invention has been described above according to an embodiment of the present invention, the person having ordinary skill in the art to which the present invention belongs has changed and modified within the scope without departing from the technical idea of the present invention. Of course.

That is, although an embodiment of the present invention mainly describes a method of updating a database of a GPS terminal by entering a gas station where a vehicle equipped with a GPS terminal is installed with a gas station base station, a portable GPS terminal capable of tracking a location on a DB management server. Register the ID or unique number of the terminal itself, and enable the DB management server to track the location of the person carrying the portable GPS terminal in the vicinity of the gas station where the client PC and the RF modem are installed. Even if an infant and an elderly person who has a portable GPS terminal registered in the field are lost, the location can be accurately determined.

As described above, according to the system for automatically updating the database of the GPS terminal according to the present invention, when a vehicle equipped with the GPS terminal enters and refuels a gas station equipped with a gas station base station including a client PC and an RF modem, The RF transceiver in the modem and the RF transceiver in the GPS terminal communicate with each other wirelessly to automatically update the latest upgraded database provided by the DB management server.

In addition, in order to update the database of GPS, it is possible to easily update the latest upgraded database including the location information in real time without the complicated process of disconnecting the GPS terminal installed in the vehicle and connecting it to a specific computer.

1 is a schematic configuration diagram of a system applied to a conventional method of updating a database (DB) relating to location information.

Figure 2a is a schematic diagram showing a system for automatically updating the database of the GPS terminal according to the present invention.

Figure 2b is a configuration diagram showing in detail the DB management server, client PC and RF modem applied to the system according to the present invention.

Figure 2c is a block diagram showing in detail the GPS terminal applied to the system according to the present invention.

3 is a flowchart illustrating a method of automatically updating a database of a GPS terminal according to the present invention.

Figure 4 is a flow chart showing how a client PC applied to the system according to the present invention receives the latest upgraded database from the DB management server.

5 is a flow chart illustrating a method for reducing the time required for updating between a client PC and a GPS terminal applied to a system according to the present invention.

6 is a flowchart illustrating a method of solving a problem of occurrence of a communication error occurring between an RF modem and a GPS terminal applied to a system according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: DB management server 150: Internet network

220: client PC 230: RF modem

240: GPS terminal 250: GPS satellite

260 beacon

Claims (4)

A system comprising a DB management server, an internet network, a gas station, and a GPS satellite, which automatically updates a database of the GPS terminal when a vehicle equipped with a GPS terminal in a gas station enters, DB management server 100 for providing an upgraded database including location information to a computer installed in a specific place via the Internet network; A client PC 220 for downloading an upgraded database including location information provided through the Internet from the DB management server 100 and storing the upgraded database in the storage unit 223; An RF modem 230 for wirelessly transmitting an upgraded database stored in the client PC 220 to the outside; And GPS, characterized in that it comprises a GPS terminal 240 that receives the upgraded database transmitted from the RF modem 230 and transmits information about the database version including the self-stored location information to the RF modem 230. System that automatically updates the database on your device. The method of claim 1, The RF modem 230, An interface 231 for exchanging information with the client PC 220, an input unit 232 for receiving various data such as an upgraded database transmitted from the client PC 220, and an upgrade inputted through the input unit 232 Storage unit 233 for storing the application program associated with the database and the unique number table for the GPS terminal 240 installed in each vehicle and location data for beacons, and wireless transmission and reception of the upgraded database to the GPS terminal 240 And a controller 235 for controlling the functions of the interface 231, the units 232 and 233, and the functions of the RF transceiver 234 to transmit the upgraded database to the outside. A system for automatically updating the database of the GPS terminal. The method of claim 1, The GPS terminal 240, The main terminal 243a for storing database version information of the GPS terminal 240 itself, the upgraded database from the RF modem 230, and various application programs, and the GPS terminal 240 stored in the main storage unit 243a. An RF transceiver 241 for transmitting information about its database version and receiving upgraded database information from the RF modem 230, a GPS receiver 242 for receiving location data from the GPS satellites 250, and Temporary storage unit 243b for securing a space for temporarily storing the upgraded database from the RF modem 230 in preparation for an error occurring during the transmission and reception between the RF transceiver 241 and the RF modem 230, the RF modem An output unit 244 for outputting position information according to the upgraded database from 230 and the respective functions of the units 241 to 244 to control the RF modem 210. And a control unit (245) for updating the latest upgraded database transmitted from the system. The method according to claim 1 or 2, When the vehicle equipped with the GPS terminal 240 is located in a closed place and does not receive a GPS signal from the GPS satellite 250, the GPS terminal 240 receives an upgraded database through wireless communication with the RF modem 230. And a beacon 260 that functions as a repeater for extending a transmission / reception area of the RF modem 230 and a function of tracking whether a vehicle equipped with the 240 has entered or exited the gas station 200 in real time. A system for automatically updating the database of the GPS terminal, characterized in that.