KR100536986B1 - Methode for providing a rivers information in the geographical information system - Google Patents

Abstract

A method of providing stream information of a geographic information system, which is particularly useful in constructing a geographic information system such as a new river or a mountain river, in which a reference point cannot be formed due to the influence of a feature, is presented. The present invention receives a signal directly from a GPS satellite using a mobile communication terminal using a wireless Internet technology regardless of time and place, and calculates the received signal at a point where the coordinates cannot be obtained from the marker seat due to the feature. A GPS satellite can be used to form a reference point and quickly and accurately set the position coordinate between this reference point and the travel distance.

Description

METHODE FOR PROVIDING A RIVERS INFORMATION IN THE GEOGRAPHICAL INFORMATION SYSTEM}

The present invention relates to a method for providing stream information in a geographic information system, and in particular, a signal obtained from a mobile communication terminal or a mobile communication terminal for receiving coordinate values from a GPS (Global Positioning System) satellite and obtained from a GPS satellite. The present invention relates to a method for providing stream information in a geographic information system for recording a coordinate value at a mark point of an RFID system and using the coordinate value in river map data.

In general, the wireless Internet that provides a communication service such as the Internet beyond the space refers to an environment and technology that allows a user to use an Internet service through a wireless network using a mobile communication terminal while the user is 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.

In addition, the Geographic Information System (GIS) is a computer application system that collects, stores, analyzes, and prints geographic data. Traditional maps have been a two-dimensional source of information about land, such as important topography and facilities, to provide the necessary information. However, it is difficult to record the contents that change from time to time, which makes it difficult to use the map, and suggests an effective method of collecting, processing, and analyzing data using a computer, and is a comprehensive space that can efficiently process vast and diverse data. Processing technology GIS has been developed.

Such a GIS should be preceded by a numerical method of quantifying the state of the river through separate survey analysis, and their survey analysis is mostly performed only for two dimensions. However, there is a need for a topographic map including three-dimensional coordinate values (x, y, z) in relation to the current leisure, military purpose or environment.

Background Art Conventionally, techniques have been proposed for correcting numerical information of a river through information obtained while driving a vehicle equipped with a GPS in order to quantify the state of a river or to obtain quantified river information obtained through survey analysis. That is, a technique for calculating a current position of a vehicle equipped with GPS based on the traveling direction of the vehicle measured by the orientation sensor such as a gyro and the traveling distance measured by the vehicle sensor or the distance sensor has been proposed. As a method of measuring the traveling distance of the vehicle, a method of measuring the output shaft of the transmission or the number of revolutions of the tire and measuring the number of revolutions by multiplying the distance coefficient, which is the distance traveled by the vehicle per tire revolution, may be used.

However, in the method of implementing a GIS using a vehicle equipped with GPS, the distance coefficient changes every time due to tire wear or expansion due to temperature change while the vehicle is running. Therefore, an error occurs in the calculation of the travel distance, there is a problem that can not accurately calculate the current position.

In addition, the marker stone is a geodetic reference system of a country as a reference for location information, and this marker stone provides a reference point for making a map necessary for the geographic information system. However, the reference points provided from the markers are often unavailable depending on the features of the river. Especially in the case of newly established rivers or mountain streams, there is a problem that the GIS system cannot be quickly established because the reference point cannot be provided from the marker.

The present invention has been invented to solve the above problems, and receives a signal directly from the GPS satellites using a mobile communication terminal using a wireless Internet technology regardless of time and place, and calculates the received signal to Due to the formation of a reference point using GPS satellites at the point where the coordinates cannot be obtained from the marker, the position coordinates between this reference point and the moving distance can be set up quickly and accurately. It is to provide a method for providing information.

The present invention for achieving such an object,

Preparation step (S11) for receiving the coordinates for the reference point by connecting the mobile communication terminal 100 to the mobile communication system 300, after the step from the one or more GPS satellites 101 through the mobile communication terminal 100 The geographic information control unit 500 receives the data and performs the Internet 400 via the wireless base station 310 including the base station transmitter 311 and the base station controller 314, the mobile switching center 320, and the WAP gateway 330. Transmitting to the map generation server 520 of the step (step S12), the map generation server 520 after the step WGS84 as a reference coordinate for forming a reference point using the navigation data received through the mobile communication terminal 100 And transmitting the calculated WGS84 coordinates to the mobile communication terminal 100 through the Internet 400, the WAP gateway 330, the mobile switching center 320, and the wireless base station 310 (S13). On a feature of the river Therefore, the first step (S10) of receiving the coordinates for the reference point through the mobile communication terminal 100 that receives the GPS radio wave from the GPS satellites 101, if the reference point can not be provided from the cover stone provided by the country;

After the first process, the mobile terminal 100 performs a normal authentication procedure, and the antenna 225 of the reference point setting unit 220 by the signal transmitted through the RF frequency from the mobile terminal 100 Operating the power supply unit 228 (step 21) When power is supplied to the reference point setting unit 220, the memory 222 generates a predetermined clock by oscillating the power supplied from the power supply unit 228. Storing reference coordinate data input from the mobile communication terminal 100 as a reference point based on the clock generated in step (step 22). The reference point data stored in the memory 222 of the reference point setting unit 220 is stored in a stream. The coordinates are converted into a signal for transmitting a radio frequency RF signal through a modulator 224, and the modulated signal from the modulator 224 is input to an antenna circuit 226 to move the antenna through the antenna 225. Communication A second step (S20) of storing the received reference coordinates in the reference point setting unit 200 as a reference point, including a step (step 23) of transmitting to the terminal 230; And

The mobile communication terminal 100 receives and maintains data transmission and reception with the reference point setting unit 200 (step S30) and receives navigation data from the GPS satellites 101 at the current position while moving along the river. Map generation server of the geographic information control unit 500 via the Internet 400 via the wireless base station 310 including the base station transmitter 311 and the base station controller 314 and the mobile switching center 320 and the WAP gateway 330. In step 520 of transmitting (step S41), after determining the position of the measurement point B that the mobile communication terminal 100 has moved in association with the position of the reference point A stored in the reference point setting unit 200, the reference point Determining coordinates between the position of A and the position of measurement point B (step S41), and calculating coordinates while calculating the trajectory of movement while transmitting and receiving data between the mobile communication terminal 100 and the reference point setting unit 200. Output And a third process (S40) to create a geospatial data according to the coordinates.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing a geographic information system according to a preferred embodiment of the present invention, FIG. 2 is a block diagram briefly showing an internal configuration of a reference point setting unit for setting a reference point according to the geographic information system of the present invention. 3 is a flowchart illustrating an operation of a geographic information system according to an embodiment of the present invention. FIG. 4 is a conceptual diagram illustrating setting moving coordinates according to a trajectory moved in a geographic information system according to the present invention.

As shown in FIG. 1, the geographic information system according to the present invention includes a GPS radio wave including navigation data from a global positioning system (GPS) artificial satellite 101 and a global positioning system (GPS) artificial satellite 102 for transmitting navigation data. Operated by the mobile communication terminal 100 to receive the GPS signal received from the satellite 101, the mobile communication terminal 100 receives a GPS signal from the fixed point of view due to the feature to the coordinates at the point Reference point setting unit 200 for storing and transmitting the data about the mobile communication system 300 for connecting the signal from the mobile communication terminal 100 to the geographic information control unit 500 using the Internet 400 and Connected to the mobile communication system 300 and the Internet 400, the map generation server 510 and the map generation server 510 for generating a map based on the received data It consists of the geographic information control unit 500 including a map database 520 for storing the generated map emitter.

Here, the reference point setting unit 200 for forming the reference point at the point where the coordinates cannot be obtained from the fixed marker seat due to the feature, as shown in Figure 2, by using a radio frequency (RF frequency) of the information in a non-contact manner Radio frequency recognition technology is used that can store and read stored information. The reference point setting unit 200 stores an antenna in the memory 222 and an antenna unit 227 including an antenna 225 for wireless transmission of the stored data and an antenna circuit 226 for controlling the operation of the antenna 225. And a power generator 228 for supplying driving power, a clock generator 229 for generating a predetermined clock by oscillating the power supplied from the power supply 228, and a clock generated by the clock generator 229. The memory 222 stores data, and a modulator 224 for converting data stored in the memory 222 into a radio signal.

 Referring back to FIG. 1, the mobile communication system 300 includes a mobile communication terminal 100 and a mobile communication terminal 100 for receiving GPS radio waves including navigation data from a global positioning system (GPS) satellite 102. A wireless base station including a base transceiver station (BTS) 311 and a base station controller (BSC) 314 for receiving a wireless Internet access request signal and allocating or releasing a wireless channel. 310, a connection request received from a mobile switching center 320 and a wireless base station 310, which performs a control function for allowing a plurality of wireless base stations 310 to operate efficiently and an interworking function with a public switched telephone network (PSTN). Receives a signal from the mobile switching center 320 and performs a process such as communication code conversion or protocol conversion between the mobile communication network and the wired internet network, thereby It is configured in the WAP gateway 330 to perform the software functions for interconnecting.

In addition, the geographic information control unit 500 connected to the mobile communication system 300 and the Internet 400 is a map generation server 510 for generating a map based on the data received from the mobile communication system 300 and And a map database 520 for storing maps generated from the map generation server 510.

Referring to FIG. 3, a stream mapping process according to the geographic information system according to the present invention configured as described above will be described.

The geographic information system according to the present invention provides a reference point through the mobile communication terminal 100 that has received GPS radio waves from the GPS satellites 101 when the reference point is not provided from the marker seat provided by the state according to the features of the river. Step S10 of receiving the coordinates is first performed.

In step S10, the mobile communication terminal 100 is connected to the mobile communication system 300 to perform a preparation step (S11) for receiving coordinates for a reference point, and then one or more GPS satellites ( 101 receives geographic data from the base station transmitter 311 and the base station controller 314 by using the Internet 400 via the wireless base station 310 and the mobile switching center 320 and the WAP gateway 330 The controller 500 transmits to the map generation server 520 (step S12). The map generation server 520 calculates the WGS84 coordinate as a reference coordinate for forming a reference point using the navigation data received through the mobile communication terminal 100, and performs the normal coordinate transformation process on the calculated WGS84 coordinate. 400, the WAP gateway 330, the mobile switching center 320 and the radio base station 310 transmits to the mobile communication terminal 100 (S13).

Here, the WGS84 coordinate system used as the reference coordinate in the geographic information system according to the present invention is a data obtained from various ellipsoid models that are differently used in different countries in the world by the National Imagery and Mapping Agency (NIMA). A coordinate system proposed to represent a reference ellipsoid. Since the countries of the world use different ellipsoids of the world as the location coordinate system, in order to apply the WGS84 coordinate value received from the GPS satellites 101 to the coordinate system of each country, a predetermined coordinate conversion process is required.

When the reference coordinate is transmitted from the map generation server 520 to the mobile communication terminal 100 in step S10, the reference coordinate is stored in the reference point setting unit 200 as the reference point (S20). The reference point setting unit 200 is formed to be easily controlled through the mobile communication terminal 100 to enable storage of the data DATA and reading of the stored information through radio frequency recognition.

That is, when the mobile communication terminal 100 performs the normal authentication procedure, the antenna 225 of the reference point setting unit 220 controls the power supply unit 228 by the signal supplied through the RF frequency from the mobile communication terminal 100. (Step 21) When power is supplied to the reference point setting unit 220, the clock generated by the clock generator 129 in the memory 222 oscillates the power supplied from the power supply unit 228 to generate a predetermined clock. The reference coordinate data stored in the reference point data stored in the memory 222 of the reference point setting unit 220 is stored in the modulator when the coordinates of the stream are produced. (Modulator) 224 is converted into a signal for transmitting a wireless RF signal, the signal modulated by the modulator 224 is input to the antenna circuit 226 and the mobile communication terminal 230 through the antenna 225 Is sent to (Step 23).

As described above, a process of receiving coordinates for a reference point through the mobile communication terminal 100 that has received GPS radio waves from the GPS satellites 101 (step S10), and storing the received reference coordinates as reference points in the reference point setting unit 200. After performing step S20, the coordinates are calculated while calculating the trajectory that is transmitted and received while transmitting and receiving data between the mobile communication terminal 100 and the reference point setting unit 200 (step S20), and then, geographic information data is created according to the calculated coordinates (step S20). S40).

That is, after storing the received reference coordinate in the reference point setting unit 200 as a reference point, the mobile communication terminal 100 transmits and receives data with the reference point setting unit 200 (step S30) while moving along the river current position Receiving the data from the GPS satellite 101, the navigation data via the radio base station 310, the base station transmitter 311 and the base station controller 314, the mobile switching center 320 and the WAP gateway 330 400 to be transmitted to the map generation server 520 of the geographic information control unit 500 (step S41).

In the geographic information control unit 500, as shown in FIG. 4, the position of the measurement point B, which the mobile communication terminal 100 has moved by relative positioning, is associated with the position of the reference point A stored in the reference point setting unit 200. (Step S42).

That is, the vector amount between the position of the reference point A and the position of the measurement point B is expressed as follows.

Measurement point vector ( ) = Base point vector ( ) + Baseline vector ( )

Where the baseline vector ( ),

(One)

In <Equation 1>, the coordinate difference between the position of the reference point A and the position of the measurement point B is calculated using the distance from the satellite, and the distance from the satellite is the time and user at the moment when the radio wave leaves the satellite as shown in <Equation 2> Calculate by multiplying the speed of light by the difference from the time it arrives at the receiver.

(2)

here, : Beam

The process of calculating the coordinate difference between the position of the reference point A and the position of the measurement point B using a distance from the satellite is well known. As shown in FIG. 4, an error and a three-dimensional coordinate value (X, Y, Z) of the received position are shown. At least four satellites should be observed to produce When the three-dimensional coordinates are known, they are converted into coordinates and used as geographic information data (step S43).

As described above, the geographic information system for providing river information according to the present invention is particularly useful when constructing a geographic information system such as a new river or a mountain river, in which a reference point cannot be formed due to the influence of the feature. Receives signals directly from GPS satellites using a mobile communication terminal using wireless internet technology regardless of location, calculates the received signals, and places a reference point of RFID method at a point where the coordinates cannot be obtained from the marker. And the position coordinate between this reference point and the travel distance can be set quickly and accurately.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited thereto and may be improved or modified by those skilled in the art within the scope of the technical idea of the present invention.

1 is a block diagram schematically illustrating a geographic information system according to a preferred embodiment of the present invention.

2 is a block diagram schematically illustrating an internal configuration of a reference point setting unit for setting a reference point according to the geographic information system of the present invention.

3 is a flowchart illustrating an operation of a geographic information system according to an embodiment of the present invention.

4 is a conceptual diagram illustrating setting moving coordinates according to a trajectory moved in a geographic information system according to the present invention.

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

100: mobile communication terminal 102: GPS satellite

200: reference point setting unit 222: memory

225: antenna 227: antenna

228: power supply unit 229: clock generator

300: mobile communication system 310: base station

311: base station transmitter 314: base station controller

320: mobile switching center 330: WAP gateway

500: geographic information control unit 510: map generation server

520: Map database

Claims (1)

Preparation step (S11) for receiving the coordinates for the reference point by connecting the mobile communication terminal 100 to the mobile communication system 300, after the step from the one or more GPS satellites 101 through the mobile communication terminal 100 The geographic information control unit 500 receives the data and performs the Internet 400 via the wireless base station 310 including the base station transmitter 311 and the base station controller 314, the mobile switching center 320, and the WAP gateway 330. Transmitting to the map generation server 520 of the step (step S12), the map generation server 520 after the step WGS84 as a reference coordinate for forming a reference point using the navigation data received through the mobile communication terminal 100 And transmitting the calculated WGS84 coordinates to the mobile communication terminal 100 through the Internet 400, the WAP gateway 330, the mobile switching center 320, and the wireless base station 310 (S13). On a feature of the river Therefore, the first step (S10) of receiving the coordinates for the reference point through the mobile communication terminal 100 that receives the GPS radio wave from the GPS satellites 101, if the reference point can not be provided from the cover stone provided by the country; After the first process, the mobile terminal 100 performs a normal authentication procedure, and the antenna 225 of the reference point setting unit 220 by the signal transmitted through the RF frequency from the mobile terminal 100 Operating the power supply unit 228 (step 21) When power is supplied to the reference point setting unit 220, the memory 222 generates a predetermined clock by oscillating the power supplied from the power supply unit 228. Storing reference coordinate data input from the mobile communication terminal 100 as a reference point based on the clock generated in step (step 22). The reference point data stored in the memory 222 of the reference point setting unit 220 is stored in a stream. The coordinates are converted into a signal for transmitting a radio frequency RF signal through a modulator 224, and the modulated signal from the modulator 224 is input to an antenna circuit 226 to move the antenna through the antenna 225. Communication A second step (S20) of storing the received reference coordinates in the reference point setting unit 200 as a reference point, including a step (step 23) of transmitting to the terminal 230; And The mobile communication terminal 100 receives and maintains data transmission and reception with the reference point setting unit 200 (step S30) and receives navigation data from the GPS satellites 101 at the current position while moving along the river. Map generation server of the geographic information control unit 500 via the Internet 400 via the wireless base station 310 including the base station transmitter 311 and the base station controller 314 and the mobile switching center 320 and the WAP gateway 330. In step (S41) of transmitting to, the position of the measuring point B, which has been moved by the mobile communication terminal 100 after the step, in relation to the position of the reference point A stored in the reference point setting unit 200, &Gt; and determining the coordinate difference between the position of the reference point A and the position of the measurement point B as shown in <Equation 2> (step S41), the mobile communication terminal 100 and the reference point setting unit 200 Trajectory moved while sending and receiving data A method for providing the information stream from the geographical information system comprising a third step (S40) for computing and calculating coordinates and creates a geographic information data according to the calculated coordinates. * The measurement point vector ( ) = Base point vector ( ) + Baseline vector ( ) Where the baseline vector ( ), (One) * Distance from satellite (2) in <Formula 2> , : Luminous flux, , Expressed as