KR20040054020A - Method and System for Displaying Military Coordinates on Mobile Telecommunication Terminal - Google Patents

Abstract

PURPOSE: A system for displaying military coordinates in a mobile communication terminal and a method therefor are provided to receive a position coordinates value of a mobile communication terminal to convert the value into military coordinates, and to generate a military map that displays the military coordinates, thereby receiving a location-based service through the terminal. CONSTITUTION: A mobile communication terminal(100) receives navigation data, delivers the navigation data, and receives a military coordinates service. A mobile communication network(120) processes a call attempt, and transceives the navigation data. A WAP gateway(130) performs a communication code conversion or a protocol conversion, and interworks the mobile communication network(120) with the Internet(140). A mobile communication provider server(150) supplies the military coordinates service, and operates WGS84(World Geodetic System) coordinates. A coordinates conversion server(160) receives the WGS84 coordinates, and converts into MGRS(Military Grid Reference System) coordinates. A map generation server(170) receives the MGRS coordinates, reads a military map or a general map, and transmits the map to the terminal(100).

Description

System and method for displaying military coordinates on mobile communication terminal {Method and System for Displaying Military Coordinates on Mobile Telecommunication Terminal}

The present invention relates to a system and method for displaying a military map on a mobile communication terminal. More specifically, the coordinate conversion server connected to the mobile communication network receives the position coordinate value of the mobile communication terminal transmitted from the GPS (Global Positioning System) satellite to convert to military coordinates, the map server to display the military coordinates converted military coordinates The present invention relates to a system and method for displaying military coordinates on a mobile communication terminal that generates a map and transmits the same to a mobile communication terminal through a mobile communication network.

Since the Internet communication service, which is symbolized by the World Wide Web, has been in the spotlight, communication service has already made a big difference in human life in all aspects of society, economy and politics. It is hard to imagine life without the Internet, and the Internet is a part of life. Therefore, in recent years, the use of various high-speed communication networks, such as in order to use a variety of communication services in a better environment has increased significantly.

However, communication services such as the Internet using a computer have advantages in that the transmission speed is high and data input is convenient. However, when the communication service is no longer available, communication services cannot be used anymore. It has a disadvantage to use.

Therefore, in recent years, many companies are spurring the development of new technology called wireless Internet to provide communication services such as the Internet beyond the space. Wireless Internet refers to an environment and technology in which a user can use an Internet service through a wireless network using a mobile communication terminal while moving. The development of mobile phone-related technologies and the rapid increase in mobile phone penetration have further accelerated the development of this wireless Internet environment.

Among various wireless Internet services using a mobile communication terminal such as a cellular phone or a PDA, a location-based service is in the spotlight due to its wide utility and convenience. Location-based wireless Internet service can be used for rescue requests, response to crime reports, Geographic Information System (GIS), differential pricing of mobile communication charges according to location, traffic information, vehicle navigation and logistics control, location-based CRM (Location Based) It is used in various fields and situations such as customer relationship management.

In order to use the location-based wireless Internet service, it is essential to know the location of the wireless communication terminal. Currently, as a method of identifying a location using wireless communication, a method using GPS is typical. GPS is a system that can be located anywhere in the world by 24 GPS satellites orbiting the earth at an altitude of about 20,000 kilometers. GPS uses radio waves in the 1.5 GHz band, and on the ground there is a coordination center called Control Station, which collects and synchronizes information transmitted from GPS satellites. 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.

However, the GPS-based location-based services currently provided by mobile operators are all for civilians in general society. In other words, location-based services are not provided for special societies such as police organizations and the military, rather than civil society. This is fundamentally because the coordinate system used in general society and special society (police organizations, military, etc.) is not the same. Here, the coordinate system refers to a relative position represented by a distance and a direction from a reference point as a method for representing an arbitrary point on the map in which the ellipsoid of the earth is expressed in a planar shape using an arbitrary projection method.

For example, in Korea, the general society uses the Transverse Mercator (TM) coordinate system, while the special society uses the MGRS (Military Grid Reference System) coordinate system. Therefore, a map created using a transversal mercator coordinate system provided by a location based service (LBS) in a general society becomes useless in a special society using the MGRS coordinate system.

In order to solve this problem, a user (police, soldier, etc.) must bear a hassle and inconvenience in mounting a specific GPS receiver in a mobile communication terminal that converts geographic coordinates received from a GPS satellite into MGRS coordinates. However, there is a problem that a separate cost and effort is required for a user to purchase a GPS receiver having such a function separately and install it in the mobile communication terminal.

Currently, military weapon systems equipped with MGRS are mainly aviation and ships, and are also installed in the multi-extended rocket artillery system, which has been introduced recently, but is not installed in most military equipment due to cost problems. It is true.

In order to solve the above problems, the present invention is the coordinate conversion server connected to the mobile communication network receives the position coordinate value of the mobile communication terminal transmitted from the GPS satellite to convert to military coordinates, the map server includes the converted military coordinates An object of the present invention is to provide a system and method for displaying military coordinates on a mobile communication terminal generating a military map and transmitting the same to a mobile communication terminal through a mobile communication network.

1 is a block diagram schematically showing a military coordinate service system according to a preferred embodiment of the present invention;

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

3 is a diagram illustrating an MGRS coordinate system used for military coordinate service according to an embodiment of the present invention;

4 is a flowchart illustrating a process of using military coordinate service using a mobile communication terminal according to an embodiment of the present invention.

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

100: mobile communication terminal 102: GPS satellite

110: wireless base station 120: mobile switching center

130: swap gateway 150: mobile communication provider server

160: coordinate transformation server 170: map generation server

180: map database 202: program memory

204: key input unit 206: LCD display unit

208: data storage 210: mode state storage

212: subscriber information storage unit 214: microprocessor

216: digital processing unit 218: baseband conversion unit

224 GPS antenna 226 GPS receiver

228 RF signal processing unit

To this end, the present invention is a system for displaying military coordinates on a mobile communication terminal using GPS, receiving navigation data from one or more GPS satellites, transmitting the received navigation data through a mobile communication network, and establishing a wireless Internet connection. A mobile communication terminal provided with military coordinate service; A mobile communication network which processes a call attempt for access of the wireless Internet from the mobile communication terminal and transmits and receives the navigation data; A WAP gateway for interworking the mobile communication network and the Internet by performing a process of converting a communication code or a protocol between the mobile communication network and the Internet; A mobile communication service provider server providing the military coordinate service to the mobile communication terminal, and receiving the navigation data through the mobile communication network to calculate WGS84 coordinates; A coordinate conversion server that receives the WGS84 coordinates from the mobile communication operator server and converts the WGS84 coordinates into MGRS coordinates; And a map generation server which reads out a military map or a general map of a predetermined area stored in a map database linked with the MGRS coordinates from the coordinate conversion server and transmits the map to the mobile communication terminal. Provide a system for displaying military maps.

According to another object of the present invention, a method for providing a military coordinate service to a mobile communication terminal using GPS, the method comprising the steps of: (a) the mobile communication terminal is connected to the mobile communication operator server, the military coordinate service menu is selected ; (b) the mobile communication terminal receiving the navigation data from at least one of the GPS satellites and transmitting the navigation data to the mobile communication service provider server; (c) the mobile communication service provider server receiving the navigation data to calculate the WGS84 coordinates and transmitting the WGS84 coordinates to the coordinate conversion server; (d) the coordinate conversion server receiving and converting the WGS84 coordinates to MGRS coordinates; (e) reading, by the map generation server, the military map or the general map of a predetermined region corresponding to the MGRS coordinates, displaying the MGRS coordinates and the position of the mobile communication terminal, and transmitting the read and the mobile terminal to the mobile communication terminal; And (f) the mobile communication terminal receiving the military map or the general map through the mobile communication network, and displaying the received military map or the general map. Provides a method for displaying coordinates.

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.

1 is a block diagram schematically showing a military coordinate service system according to a preferred embodiment of the present invention.

Military coordinate service system according to a preferred embodiment of the present invention is a mobile communication terminal 100, a global positioning system (GPS) satellite 102, a base station (BS) (110), a mobile switching center (MSC) Center 120, Wireless Application Protocol (WAP) Gateway 130, Internet 140, Mobile Operator Server 150, Coordinate Conversion Server 160, Map Generation Server 170 and Map Database 180 ).

The mobile communication terminal 100 is a terminal using military coordinate service according to an embodiment of the present invention, and receives military maps and military coordinates from the mobile communication service provider server 150 through the mobile communication network and the Internet 140. To this end, the mobile terminal 110 is a wireless Internet access protocol (WAP) protocol, Hyper Text Markup Language (HTML) based on HTML (Hyper Text Markup Language) using the MIE (Microsoft Internet Explorer), Handheld Device Transfer Protocol (HDPT) : Connects to the mobile communication service provider server 150 via a mobile communication network using a browser for Internet connection, such as Handheld Device Transport Protocol), NTT DOKOMO's "i-Mode" or SK Telecom's "Nate".

A user of the mobile communication terminal 100 connected to the mobile communication service provider server 150 using such various internet access browsers selects, for example, a military coordinate service menu among wireless internet menus displayed on the liquid crystal screen. When the military coordinate service menu of the mobile communication terminal 100 is selected, the mobile communication terminal 100 receives a GPS radio wave containing navigation data from the GPS satellite 102 and coordinate conversion server through the mobile communication network and the Internet 140. Military coordinate service is provided by sending to 160. Here, the mobile communication terminal 100 is provided with a GPS receiver and a GPS antenna with a built-in GPS chipset for receiving GPS radio waves.

Meanwhile, the mobile communication terminal 100 according to the embodiment of the present invention includes a mobile phone, a PDA, and the like, and an internal configuration of the mobile communication terminal 100 will be described in detail with reference to FIG. 2.

GPS satellite 102, when the military coordinate service menu is selected in the mobile communication terminal 100, when a request for transmission of position coordinates occurs, the GPS satellite 102 uses information about its orbit, its own code information, and time. Send information and more. Although only one GPS satellite 102 is shown in FIG. 1, as described above, the mobile communication terminal 100 must receive GPS radio waves from at least four GPS satellites for accurate position measurement.

The wireless base station 110 receives a wireless internet access request signal (hereinafter referred to as a connection request signal) of the mobile communication terminal 100 and performs a function of allocating or releasing a wireless channel, and performing a base station transmitter (BTS: Base). Transceiver Station 112 and Base Station Controller (BSC) 114. Here, the base station transmitter 122 receives a connection request signal from the mobile communication terminal 110 through a traffic channel of the signal channel, and transmits the received connection request signal to the base station controller 114. In addition, the base station controller 114 controls the base station transmitter 112 and performs various call processing functions such as support for incoming and outgoing call processing and message processing of the base station transmitter 112. The base station controller 114 forwards the access request signal received through the base station transmitter 112 to the mobile switching center 120.

The mobile switching center 120 generally performs a control function for allowing a plurality of wireless base stations 120 to operate efficiently and an interworking function with a public switched telephone network (PSTN). In addition, the mobile switching center 120 transmits the access request signal received from the wireless base station 110 to the WAP gateway 130.

The WAP gateway 130 is a software function for interconnecting the mobile communication network and the wired Internet network by performing a process such as communication code conversion or protocol conversion between the mobile communication network and the wired Internet network so as to quickly retrieve and display information on the wired Internet. A communication device that performs the. That is, the WAP gateway 130 converts the WAP protocol and the Internet TCP / IP protocol. Therefore, the HTTP protocol is used between the mobile communication service provider server 150 and the WAP gateway 130 connected to the Internet 140, and the WAP protocol is used between the mobile communication terminal 100 and the WAP gateway 130 to provide data. Sending and receiving is done.

The WAP gateway 130 converts a Uniform Resource Locator (URL) request received from the mobile communication network into the HTTP protocol according to the WAP protocol, and then uses the mobile service provider server 150 according to the HTTP protocol through the Internet 140. Request a website address. In addition, the WAP gateway 130 converts a web page coded in WML (Wireless Markup Language) received from the mobile operator server 150 into a WAP protocol, which is a binary code, and transmits the converted web page to the mobile communication terminal 100. do. Then, the WAP protocol received by the specific web browser embedded in the mobile communication terminal 100 is converted into a web page and displayed on the LCD screen. Since the data passing through the WAP gateway 130 is converted into a binary code, the amount of data is reduced and the data transmission speed is improved when transmitting to the mobile communication network.

The mobile service provider server 150 operates a web site constructed with WML and provides a web page requested from the mobile communication terminal 100 so that a user can use a wireless Internet service. That is, when the mobile communication service provider server 150 receives the military coordinate service request signal from the mobile communication terminal 100, the mobile communication service provider server 150 requests the mobile communication terminal 100 to transmit the navigation data of the GPS satellite 102. Then, the mobile communication service provider server 150 receiving the navigation data transmitted from the mobile communication terminal 100 calculates the WGS84 coordinates using the received navigation data, and coordinates the calculated WGS84 coordinates through the Internet 140. Transfer to the conversion server 160. In addition, the military coordinates from the coordinate transformation server 160 receives a military map or military coordinates are displayed and transmitted to the mobile communication terminal 100 through the Internet 140 and the mobile communication network.

Here, the WGS84 coordinate system is used in various ellipsoid models that are used differently in different countries in the world by the National Imagery and Mapping Agency (NIMA), which produces various outputs related to maps, surveys, and gravity. The coordinate system proposed to represent the calculated data as a reference ellipsoid.

In other words, countries around the world use different ellipsoids of the world as their position coordinate system. For example, South America, Western Europe, and the like use a Hayford coordinate system, North America, the Philippines, etc., Clark coordinate system, Chile, Japan, Korea, etc. uses the Bessel coordinate system. The WGS84 coordinate system is proposed to integrate various coordinate systems used in various countries around the world. Therefore, in order to apply the WGS84 coordinate value output from the GPS receiver to the coordinate system of each country, a predetermined coordinate conversion process must be performed.

For example, in Korea, since the general society uses the Bessel coordinate system, the WGS84 coordinate should be converted into the Bessel coordinate, and the special society such as the military and the police organization uses the MGRS coordinate system, which is output from the mobile communication terminal 100. You need to convert the WGS84 coordinates to MGRS coordinates. This conversion is performed by the coordinate conversion server 160 to be described later.

On the other hand, the military coordinate service provided by the mobile operator server 150 calculates the distance between the plurality of mobile communication terminal 100 as well as providing military coordinates or a military map in which the location of the specific mobile communication terminal 100 is displayed. It also provides a service for displaying. That is, when a user of a specific mobile communication terminal 100 selects a menu of military coordinate service, for example, a distance measurement menu, and inputs a mobile identification number (MIN) or MGRS coordinate value of the other mobile communication terminal 100, for example, The distance between the other party and the other party is displayed on the mobile communication terminal 100 of the user. The distance measurement service between each of the mobile communication terminal 100 can be very useful in the shooting target attack in the military.

The coordinate conversion server 160 converts the WGS84 coordinates received from the mobile communication service provider server 150 to the MGRS coordinates to apply to the military map. Here, the method of converting the WGS84 coordinates to the MGRS coordinates uses an algorithm and software provided by the US Image Mapping Bureau. That is, the coordinate conversion server 160 converts the WGS84 coordinates to the MGRS coordinates using a predetermined coordinate conversion program embedded therein, and transmits the converted coordinates to the map generation server 170.

On the other hand, the coordinate transformation method and technology between each coordinate system is a technique well known and used by those skilled in the art, a detailed description thereof will be omitted.

The map generation server 170 generates a military map or a general map on which military coordinates are displayed according to an embodiment of the present invention by using the MGRS coordinates received from the coordinate conversion server 160 and a predetermined map generation program embedded therein. Do this. That is, the map generation server 170 reads a predetermined range of electronic maps including the received MGRS coordinates from the map database 180 in which nationwide electronic map data is stored, and determines the position of the mobile communication terminal 100. Create military map or general map by displaying with image and MGRS coordinate value. That is, the map database 180 stores military maps or general maps in an electronic form nationwide.

In addition, the map generation server 170 transmits the generated military map or general map to the mobile communication terminal 100 through the Internet 140 and the mobile communication network. Accordingly, the user of the mobile communication terminal 100 can check his or her location as image and text coordinate values on a military map or a general map.

2 is a block diagram briefly illustrating an internal configuration of a mobile communication terminal 100 according to an embodiment of the present invention.

The mobile communication terminal 100 according to the embodiment of the present invention includes a program memory 202, a key input unit 204, a liquid crystal display (LCD) display unit 206, a data storage unit 208, and a mode state storage unit 210. ), Subscriber Identity Module (SIM) 212, Microprocessor (214), Digital Signal Processor (DSP: `` DSP '') 216, Baseband ( A baseband conversion unit 218, a speaker 220, a microphone 222, a GPS antenna 224, a GPS receiver 226, an RF signal processing unit 228, and the like.

The program memory 202 stores protocol software for implementing functions of the terminal itself and processing messages transmitted and received from the network. In particular, the program memory 202 may be connected to a mobile communication server 150 to receive military coordinate service. Internet access program is built in. In addition, the program memory 202 has a predetermined map viewer program for displaying a military map received through a mobile communication network. Here, the map viewer program is a program that can display the military map received through the mobile communication network on the LCD display unit 206, and control the enlarged, reduced, moved (up, down, left, right), rotation, and the like.

The key input unit 204 is provided with a plurality of key buttons for inputting various data such as numbers and letters. Therefore, the user operates the key button provided in the key input unit 204 to connect to the mobile communication service provider server 150, and among the various wireless Internet services displayed on the mobile communication terminal 100 according to an embodiment of the present invention. You can select the coordinate service menu.

The LCD display unit 206 displays an operation state of the mobile communication terminal 100 including a state of use of a battery, reception strength of radio waves, a date and time. In addition, the LCD display unit 206 displays the military map image received through the mobile communication network. The data storage unit 208 serves as a data buffer when executing the operation program of the mobile communication terminal 100, and temporarily stores data such as numbers and characters inputted by the key input unit 204, or Temporarily stores data such as texts and images received from the mobile communication network to the mobile communication terminal 100.

The mode state storage unit 210 stores the current operation mode of the mobile communication terminal 100 selected by the key input unit 204 as a state flag (0, 1, 2, ...). That is, the mode state storage unit 210 sets a status flag for each mode to distinguish whether the mobile communication terminal 100 is in a wireless internet access mode or a voice call mode for use of military coordinate service. Assign and manage

The subscriber information storage unit 212 stores registration information of a subscriber, that is, a user. The subscriber information storage unit 312 is inserted into a slot in the mobile communication terminal 100 in the form of a card, also called a SIM card, and performs an interface function between the mobile communication terminal 100 and a communication network. That is, when the power of the mobile communication terminal 100 is turned on, the mobile communication terminal 100 transmits and receives all information on the SIM card with the mobile communication network. Done.

The microprocessor 214 controls the overall operation of the mobile communication terminal 100 based on the state flag stored in the mode state storage unit 210. In particular, when the military coordinate service menu is selected by the key input unit 204, the microprocessor 214 connects to the mobile communication service provider server 150 using the wireless Internet access function via the mobile communication network and the WAP gateway 130. Control the mobile communication terminal 100 to be. To this end, the microprocessor 214 transmits digital data for this function to the baseband converter 218 (TX DATA).

The DSP 216 is a digital signal processing processor that codes or decodes a speech signal, functions as an equalizer for multipath noise cancellation, and performs an acoustic data processing function. Also, the DSP 216 exchanges the voice data SPEECH with the baseband converter 218 and receives the military map image converted into the digital data RX DATA from the baseband converter 218.

The baseband converter 218 converts a signal transmitted and received between the RF signal processor 228 and the DSP 216, the speaker 220, and the microphone 222 into a baseband signal, and converts the digital-to-analog signal. It performs functions such as DAC: Digital to Analog Conversion (ADC) and Analog to Digital Conversion (ADC). In addition, the baseband converter 218 transmits the transmission data (TXIQ) to the RF signal processor 226, and controls the power (POWER) of the RF signal processor 326 or automatically controls its gain (AGC). . In addition, the RF signal processor 226 receives the received signal RXIQ.

The speaker 220 outputs a voice signal transmitted from the baseband converter 218 as an audible sound, and the microphone 222 converts a user's voice input into an electrical signal.

The GPS antenna 224 receives GPS radio waves transmitted from a plurality of GPS satellites 102 floating in outer space at an altitude of about 21,000 km, so that the distance between the GPS satellites 102 and the mobile communication terminal 100 and the GPS satellites are reduced. It is a device that can determine the position of the mobile communication terminal 100 based on the trajectory of (102). In general, a satellite may be associated with a parabolic antenna, but a GPS requires receiving radio waves from various satellites orbiting the earth, and thus cannot use a high-gain, high-gain antenna such as a parabolic antenna. . The GPS antenna 224 generally has a semi-circular directivity on top of the ground plain, and receives the primary source polarization transmitted from the GPS satellite 102.

The GPS receiver 226 is a component that receives GPS radio waves including navigation data, such as orbit information and standard time information, from 3 to 4 GPS satellites 102. The received GPS radio waves are processed through a microprocessor ( 214). In general, a high frequency of GHz band is usually used in satellite communication using GPS satellites. Therefore, in order to receive such a high frequency band signal, it may be desirable to use a receiving antenna and a circuit having higher sensitivity than the general receiving circuit in the GPS receiver 226.

On the other hand, the navigation data transmitted from the GPS satellite 102 includes an ID code, an orbit position, time information, and the like of the GPS satellite 102. Therefore, when the mobile communication terminal 100 receives two GPS satellite information through the GPS receiver 226, it can infer the trajectory where the mobile communication terminal 100 is located. If four satellites are received, the location can be identified as a three-dimensional point.

On the other hand, in general, the position accuracy of the GPS standard location service has an error range of about 100 m with 95% accuracy in the horizontal plane, but in the embodiment of the present invention, DGPS (Differential) in order to determine the location of the mobile communication terminal 100 more accurately. GPS) may be employed. DGPS is a system that removes the error component in the pseudo range measurement by the information currently transmitted from the satellite from the known base station, and informs the surrounding GPS user to enable better positioning.

In addition, the military coordinate service system according to an embodiment of the present invention may employ AGPS (Assisted GPS). AGPS sometimes improves the problem that it is impossible to measure the location because the TTFF (Time To First Fix), which is the actual time required for the GPS receiver to initially determine its location, may take from several minutes to ten minutes or more. In order to complement GPS.

In addition, the military coordinate service system according to an embodiment of the present invention may employ RTK (Real Time Kinematic), an angular measurement technique developed to obtain coordinates of a wide range of viewpoints in a short time with a precision of 1 to 2 Cm. . The basic concept of RTK is very similar to the concept of DGPS except that the data transmitted for error correction is the carrier data received from the reference station, not the distance error correction value. However, RTK must continuously provide carrier data of each satellite received from the reference point, and more stable and faster communication media are required because the limit of error that can occur due to information transmission obstacle is larger than that of DGPS. Currently, DGPS and RTK are mainly used in various fields of GPS application, and all applications such as Geographical Information System (GIS), surveying, and navigation are being put to practical use by focusing on the use of RTK technique.

On the other hand, since the positioning technology using the DGPS, AGPS, RTK method is well known to those skilled in the art, more detailed description will be omitted.

The RF signal processor 326 demodulates and amplifies the RF signal received from the GPS receiver 226, modulates a transmission signal applied from the baseband converter 218, and transmits the modulated signal to the propagation space.

3 is a diagram illustrating an MGRS coordinate system used for military coordinate service according to an embodiment of the present invention.

The MGRS coordinate system is a combination of alphabetic and numeric characters by encoding Universal Transverse Mercator (UTM) coordinates and Universal Polar Stereographic (UPS) coordinates expressed in metric values. As shown in FIG. 3, the entire earth is divided into a grid region of 6 degrees longitude and 8 degrees longitude, thereby giving a unique character. In the same way as the international cross-Mercator coordinates, numbers 1 to 60 are east-westly and six-degrees east of the 180-degree longitude line, and 80 ° S to 84 ° N in the north-south direction at 8-degree intervals. For 20 zones, the letters C to X (except I and O) are assigned.

In the case of the polar region, the Antarctic region is assigned a zone code of A to the west and a B of the east based on the meridian of 0 degrees and 180 degrees. . The exception is to extend the 6-degree zone to 9 degrees to cover the southwestern part of Norway between 56 ° N and 64 ° N of the 32nd zone, and to reduce the 31st zone by 3 degrees instead.

In addition, instead of using a 6-degree gap extended by 12 degrees between 72 ° N and 84 ° N in Zones 33 and 35, Zones 31 and 37 are expanded to 9 degrees and Zones 32, 34, and 36 are deleted. For each lattice zone (longitude 6 degrees × latitude 8 degrees), subdivided back into an area of 100,000 m × 100,000 m, giving a two-digit alphabetic code for each area. In other words, in the east-west direction, 24 characters are repeated every 18 degrees from A to Z (except I and O) every 6 degrees to the east based on the 180-degree meridian for the first character of the two-digit alphabet. In the direction, 20 letters from A to V (except I and O) are repeated every 2,000,000 m from the equator for the second letter of the two-digit alphabet.

Meanwhile, the military coordinates displayed on the military map or the general map generated by the map generation server 170 according to an embodiment of the present invention are displayed as any one of 6 steps, 8 steps, and 10 steps used in the current MGRS coordinate system. Here, the six-stepping method refers to a method of displaying the grid area following the country code of the MGRS coordinate system by six numbers of three left and right numbers. For example, the country code of Korea is 52S, so if you mark a specific area with 6-step military coordinates, it can be represented as 52S CS647845, where the first three digits represent the east and west, and the last three digits represent the north and south. Indicates.

Likewise, if a particular area is marked with 8 stepped military coordinates, 52S CS64778455, 10 stepped military coordinates can be displayed as 52S CS6477684552. In 8- and 10-stepped military coordinates, the first four digits and five digits represent east and west, and the latter four digits and five digits represent north and south. In addition, the military coordinates shown in 6 steps represent 100 m grid zone units, the military coordinates shown in 8 steps represent 10 m grid zone units, and the military coordinates shown in 10 steps represent 1 m grid zone units.

4 is a flowchart illustrating a process of using military coordinate service using the mobile communication terminal 100 according to an embodiment of the present invention.

A user who wants to use the military coordinate service according to an embodiment of the present invention connects to the mobile communication service provider server 150 via the mobile communication network and the Internet 140 using the mobile communication terminal 100 capable of wireless Internet access. (S400).

A user of the mobile communication terminal 100 connected to the mobile service provider server 150 may operate a key button provided in the key input unit 204 among various wireless Internet service menus displayed on the LCD display unit 206 of the mobile communication terminal. The military coordinate service menu is selected through (S402).

The mobile telecommunication service provider server 150 receiving the request signal of the military coordinate service through the mobile communication network and the Internet 140 transmits a request signal for transmitting the navigation data received from the GPS satellite 102 to the mobile communication terminal 100. (S404).

The mobile communication terminal 100 receiving the request signal for the transmission of the WGS84 coordinates from the mobile communication operator server 150 starts receiving the navigation data transmitted from the GPS satellite 102 (S406).

The mobile communication terminal 100 receiving the navigation data from the plurality of GPS satellites 102 through the GPS antenna 224 transmits the received navigation data to the mobile communication service provider server 150 through the mobile communication network and the Internet 140. (S407).

The mobile communication service provider server 150 calculates the WGS84 coordinates of the mobile communication terminal 100 using the received navigation data (S408).

The mobile service provider server 150 transmits the calculated WGS84 coordinates to the coordinate conversion server 160 through the Internet 140 (S410).

The coordinate conversion server 160 converts the MGRS coordinates used in the military map by using a predetermined coordinate conversion program incorporating the WGS84 coordinates received from the mobile communication service provider server 150 (S412).

The coordinate transformation server 160 transmits the calculated MGRS coordinates to the map generation server 170, and the map generation server 170 receiving the MGRS coordinates from the coordinate transformation server 160 is stored in the map database 180. The military map of a certain area (circle, square, triangle, etc.) centered on the received MGRS coordinates among the electronic maps is read out (S414).

The map generation server 170 generates the final military map by displaying the position of the mobile communication terminal 100 and the MGRS coordinates on the read military map (S416).

The map generation server 170 transmits the generated final military map to the mobile communication terminal 100 through the Internet 140 and the mobile communication network (S418).

The mobile communication terminal 100 receives the final military map through the mobile communication network, and displays the received military map on the LCD display unit 206 using the map viewer program (S420).

Meanwhile, although FIG. 4 illustrates that military coordinates of the mobile communication terminal 100 are displayed as text and images (dots, crosses, etc.) together with military maps or general maps, according to the military coordinate service of the present invention. The military map or the general map is not displayed on the 100, only military coordinates of the mobile communication terminal 100 are displayed, or only military maps or general maps on which the position of the mobile communication terminal 100 is displayed without military coordinates are displayed. It may be.

The service that displays military coordinates on the mobile communication terminal 100 described so far can be effectively used for measuring the exact distance of the artillery when the artillery fires for a target hitting, or the location of each soldier or equipment when moving according to the military operation of the infantry. Can be. In addition, the Navy can be applied as a small warship without position measuring equipment, and can be used as an information device to inform the current position of the moving path and target approach.

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 location-based service provided by the conventional wireless Internet service can be used only in the general society, but according to the present invention, the mobile communication terminal can be used in a special society using a coordinate system different from the general society such as military and police organizations. The base service can be provided.

In addition, by using the location-based service according to the present invention can be used effectively for the artillery to accurately measure the distance when the gun fire for the target hit, or the location of each soldier or equipment when moving according to the military operation of the infantry.

In addition, it can be used as an information device that informs the current position of moving paths and targets when applied to small warships without position measuring equipment in the navy. You can see the effect.

Claims (26)

A system for displaying military coordinates on a mobile communication terminal using GPS, A mobile communication terminal receiving navigation data from at least one GPS satellite, transmitting the received navigation data through a mobile communication network, and receiving military coordinate service through a wireless Internet connection; A mobile communication network which processes a call attempt for access of the wireless Internet from the mobile communication terminal and transmits and receives the navigation data; A wireless application protocol (WAP) gateway for interworking the mobile communication network with the Internet by performing a process of converting a communication code or a protocol between the mobile communication network and the Internet; A mobile communication service provider server providing the military coordinate service to the mobile communication terminal, and receiving the navigation data through the mobile communication network to calculate WGS84 (World Geodetic System) coordinates; A coordinate conversion server for receiving the WGS84 coordinates from the mobile communication operator server and converting the WGS84 coordinates into MGRS (Military Grid Reference System) coordinates; And Receiving the MGRS coordinates from the coordinate conversion server map generation server for reading a military map or a general map of a certain area stored in the map database linked to the mobile communication terminal System for displaying a military map on a mobile communication terminal comprising a. The method of claim 1, The WGS84 coordinate is a system for displaying military coordinates on the mobile communication terminal, characterized in that consisting of latitude and longitude coordinates. The method of claim 1, The MGRS coordinates are given by a unique character by dividing the entire earth into a grid section of 6 degrees longitude and 8 degrees longitude, and extending the 6 degree longitude interval between 72 ° N and 84 ° N in sections 33 and 35 by 12 degrees. And extending the 6-degree intervals of longitude between the 31 zone and the 37 zone to 9 degrees, and displaying the military coordinates on the mobile communication terminal, characterized in that the 32 zones, 34 zones, and 36 zones are one of the coordinates in the MGRS coordinate system. System. The method of claim 1, The MGRS coordinate is a system for displaying military coordinates in the mobile communication terminal, characterized in that displayed by any one of 6, 8, and 10 terraced coordinates. The method of claim 1, The mobile communication terminal includes a mobile phone and a PDA (PDA) system for displaying military coordinates on the mobile communication terminal, characterized in that. The method of claim 1, The mobile communication terminal is equipped with a GPS receiver and a GPS antenna for receiving and transmitting the navigation data system for displaying military coordinates in the mobile communication terminal. The method of claim 1, The mobile communication terminal is provided with a predetermined map viewer program having a function of displaying the military map or the general map and reducing, enlarging, moving up, down, left, and right the displayed military map or the general map. A system for displaying military coordinates on a mobile communication terminal, characterized in that. The method of claim 1, The WAP gateway is a system for displaying military coordinates to the mobile communication terminal, characterized in that for converting the WAP protocol and the Internet TCP / IP (Transfer Internet Protocol / Internet Protocol) protocol programmatically. The method of claim 1, The mobile telecommunication operator server operates a website constructed in Wireless Markup Language (WML) to provide the military coordinate service to the mobile telecommunication terminal that performs wireless Internet access. System for display. The method of claim 1, The coordinate conversion server is a system for displaying military coordinates to the mobile communication terminal characterized in that for performing a coordinate conversion operation for converting the WGS84 coordinates to the MGRS coordinates using a predetermined coordinate conversion program installed. The method of claim 10, The coordinate conversion program is a system for displaying military coordinates to a mobile communication terminal, characterized in that the software provided by the US Image Mapping Station (NIMA) to convert the coordinate system of the WGS84 coordinate system and the MGRS coordinate system. The method of claim 1, The map generation server is a system for displaying military coordinates on the mobile communication terminal characterized in that the predetermined map indicating the location of the mobile communication terminal on the military map or the general map and transmits to the mobile communication terminal. . The method of claim 1, And the map generation server transmits only the MGRS coordinates of the mobile communication terminal to the mobile communication terminal. The method of claim 1, The map generation server transmits to the mobile communication terminal by marking the MGRS coordinates of the mobile communication terminal and a predetermined identifier indicating the location of the mobile communication terminal together on the military map or the general map. A system for displaying military coordinates on a communication terminal. The method of claim 1, The military coordinate service is a system for displaying military coordinates in a mobile communication terminal, characterized in that used in the army, navy, air force, police organization using the MGRS coordinate system. The method of claim 1, The military coordinate service is a system for displaying military coordinates on a mobile communication terminal, characterized in that provided using a differential GPS (DGPS) system. The method of claim 1, The military coordinate service is a system for displaying military coordinates to a mobile communication terminal, characterized in that provided using an AGPS (Assisted GPS) system. The method of claim 1, The military coordinate service is a system for displaying military coordinates on a mobile communication terminal, characterized in that provided using a Real Time Kinematic (RTK) system. A mobile communication terminal receiving navigation data from at least one GPS satellite, transmitting the received navigation data through a mobile communication network, and receiving military coordinate service through a wireless Internet connection; A mobile communication network which processes a call attempt for access of the wireless Internet from the mobile communication terminal and transmits and receives the navigation data; A WAP gateway for interworking the mobile communication network and the Internet by performing a process of converting a communication code or a protocol between the mobile communication network and the Internet; A mobile communication service provider server providing the military coordinate service to the mobile communication terminal, and receiving the navigation data through the mobile communication network to calculate WGS84 coordinates; A coordinate conversion server that receives the WGS84 coordinates from the mobile communication operator server and converts the WGS84 coordinates into MGRS coordinates; And a map generation server configured to read a military map or a general map of a predetermined area stored in a map database to receive and transmit the MGRS coordinates from the coordinate conversion server, and transmit the read and transfer to the mobile communication terminal. As a method of providing a service, (a) connecting the mobile communication terminal to the mobile communication service provider server and selecting a military coordinate service menu; (b) the mobile communication terminal receiving the navigation data from at least one of the GPS satellites and transmitting the navigation data to the mobile communication service provider server; (c) the mobile communication service provider server receiving the navigation data to calculate the WGS84 coordinates and transmitting the WGS84 coordinates to the coordinate conversion server; (d) the coordinate conversion server receiving and converting the WGS84 coordinates to MGRS coordinates; (e) reading, by the map generation server, the military map or the general map of a predetermined region corresponding to the MGRS coordinates, displaying the MGRS coordinates and the position of the mobile communication terminal, and transmitting the read and the mobile terminal to the mobile communication terminal; And (f) the mobile communication terminal receiving the military map or the general map through the mobile communication network, and displaying the received military map or general map on the mobile communication terminal; Method for displaying military coordinates on a mobile communication terminal comprising a. 20. The method of claim 19, wherein in step (a) The mobile communication terminal is a method for displaying military coordinates on the mobile communication terminal, characterized in that for connecting to the mobile communication operator server via the mobile communication network and the Internet by driving a predetermined wireless Internet browser (Browser) installed . 20. The process of claim 19, wherein in step (b) And the navigation data includes at least one of the orbital information, identification code (ID) information, and standard time information of the GPS satellites. 20. The method of claim 19, wherein in step (d) And a predetermined coordinate conversion program is installed in the coordinate conversion server to convert the WGS84 coordinates to the MGRS coordinates. 20. The process of claim 19, wherein in step (e) The map generation server is provided with a predetermined map generation program to read military coordinates or general maps of a predetermined area centered on the MGRS coordinates from the map database. How to display. According to claim 19, The military coordinate service is a method for displaying military coordinates to a mobile communication terminal, characterized in that for providing a distance measuring service for measuring the distance between the mobile communication terminal. The method of claim 24, The distance measuring service is performed by inputting a mobile identification number (MIN) of a counterpart mobile communication terminal which is a distance measurement target to a user mobile communication terminal. The method of claim 24, The distance measuring service is performed by inputting the MGRS coordinates of the other party to be the distance measurement target to the user mobile communication terminal.