KR101273416B1 - Precision digital map making system through the synthesis of geographic information and coordinate information - Google Patents

Abstract

PURPOSE: A detailed figure map manufacturing system is provided to prevent accident occurrence causes by enabling a driver to recognize a situation. CONSTITUTION: A ground coordinate information acquisition device(100) is included in a mobile unit. The mobile unit captures geographic feature. A GPS(Global Positioning Service) reception unit acquires coordinate information corresponding to an image. A ground information source providing device(200) captures a ground surface by using a camera installed at a lower part of an airplane. A figure map manufacturing server(300) is manufactured based on a set condition. [Reference numerals] (100) Ground coordinate information acquisition device; (200) Ground information source providing device; (300) Figure map manufacturing server; (400) Data communication network

Description

Precision digital map making system through the synthesis of geographic information and coordinate information}

The present invention relates to a precise digital map production system through the synthesis of coordinate information and topographic information.

More specifically, coordinate information for synthesizing topographic information or coordinate information on a digital map consisting of only coordinate information or terrain information according to a user's request or need, so that a user can provide a digital map produced when requested or required. And it relates to a precise digital map production system through the synthesis of topographic information.

The digital map means that digital maps are produced by digitally analyzing various topographical data obtained by surveying maps, aerial photographs, satellite images, etc. from existing analog paper maps. In general, the process of constructing a digital map is as follows. When the paper map is digitized or scanned to form a digital map, the paper map is converted into an actual coordinate system according to the user's purpose through coordinate transformation. Afterwards, attribute data is input to the numerical map that establishes the topological structure to grasp the inter-location and correlation between spatial objects.

The digital maps produced in this way enable faster and more accurate map retrieval than paper maps, and are superior in information management and usability to support various planning and decision making.

However, since these digital maps are mainly composed of coordinate information only, when a digital map with terrain information is required, the digital map is provided with the topographical information corresponding to the digital map consisting of only the coordinate information separately from the digital map consisting of only the coordinate information. It's a hassle to look at together.

Republic of Korea Patent Publication No. 10-0538339 2005.12.15. Republic of Korea Patent Publication No. 10-0879701 2009.01.13. Republic of Korea Patent Publication No. 10-0931004 2009.12.02.

The present invention provides a precise digital map production system by synthesizing coordinate information and topographic information to provide a digital map produced by synthesizing topographic information or coordinate information on a digital map consisting of only coordinate information or terrain information.

In addition, the present invention is a navigation terminal equipped with a digital map consisting of only the coordinate information to change the terrain information, such as the lost situation such as the puddle formed on the current road or the current state of the construction on the road synthesized and displayed on the digital map consisting of the coordinate information It provides a precise digital map production system by synthesizing coordinate information and terrain information that enables (user) to recognize and cope with situations.

According to an embodiment of the present invention, a precision digital map production system by synthesizing coordinate information and terrain information is provided in a ground moving object in a precision digital map production system through synthesis of coordinate information and terrain information. The ground coordinate information acquisition apparatus 100 for photographing the surrounding features, and obtaining coordinate information corresponding to the photographed image through the GPS receiver to transmit coordinate data together with the photographed image, and to measure and transmit the ground reference point. ; A terrain information source providing apparatus 200 which photographs the ground surface using a camera 220 installed to be rotatable under the aircraft, and transmits the captured ground surface photographed image and coordinate data obtained through the GPS receiver 240 together; And receiving a surface photographed image photographed continuously through the terrain information source providing apparatus 200 and cutting the form and specification based on a preset condition to synthesize different photographed images photographed continuously. While setting the ground reference point received from the ground coordinate information obtaining apparatus 100 as a reference point of the cut photographed image, confirming the actual coordinate information of the set ground reference point and based on the ground reference point in the photographed image based on the topographic information source Coordinate data obtained by the ground coordinate information obtaining apparatus 100 is generated by synthesizing the photographed image to match the distance with the ground reference point by checking the coordinate data received from the providing apparatus 200, and the ground coordinate information obtaining apparatus 100. Including a digital mapping server 300 for synthesizing the information to produce a digital map Achieved.

The apparatus 100 for obtaining coordinate information of the ground moving object includes a plurality of cameras 110 for acquiring a three-dimensional position of a feature as an image and outputting the three-dimensional position image signal of a measurement area facility, and mounted on the camera 110. Or detachably coupled to the rotation unit 120 to rotate the camera 110 in the left or right direction, and the rotation drive unit 130 to control the rotation unit 120 in response to the left or right rotation drive control signal. And, synchronized with the image data of the camera 110 to collect the position information of the camera 110 when the image is taken, and to output the position information of the collected camera 110 when the image signal output from the camera 110 GPS receiver 140, the inertial navigation measuring unit 150 for collecting and outputting the posture information and position information of the camera when the feature is photographed by the camera 110, and the scanning control signal In response, the laser beam is scanned on the surface of the feature at dense intervals, and the laser scan unit 160 acquires and outputs quantitative shape information of the feature using the scan signal, and a geodetic paper capable of obtaining a 3D image of the feature. When a request signal for the geodetic feature received from the outside is received and the program is mounted, the geodetic program is executed to the right or left by the rotation driver 130 so that the plurality of cameras 110 can capture the feature. Outputs a rotation drive control signal to adjust the positions of the plurality of cameras 110 and controls the camera 110 and the GPS receiver 140 to receive the corresponding feature image signal having position information and receive the inertial navigation. Receiving camera position information and position information from the measuring unit 150 and using the image data and numerical data The controller 170 generates table information and transmits the data to the outside, and receives the data under the control of the controller 170 and outputs the data to the controller 170, or outputs the data output from the controller 170 to the outside. It consists of a data transmission and reception unit 180 to transmit.

The terrain information source providing apparatus 200 detects a horizontal state of the aircraft body and generates and outputs a camera driving control signal reflecting the horizontal sensing result, and the horizontal sensing unit 210 of the horizontal sensing unit 210. The camera driver 230 receives the camera driving control signal and rotates the camera 220 in a predetermined direction with a predetermined angle, and receives GPS coordinate data from the GPS satellite when the ground surface is photographed through the camera 220. The GPS receiver 240 for receiving and outputting, the photographed image input from the camera 220 and the GPS coordinate data input from the GPS receiver 240 to the digital map production server 300 through the transceiver 260. The control unit 250 is configured to control the output.

The horizontal sensing unit 210 is filled with a transparent liquid, the transparent tube 211 is formed in the center of the bubble in a horizontal state and a plurality of light emitting diodes provided to face the center of the transparent tube (211) ( 218a, 218b, 218c and the plurality of light receiving transistors 219a, 219b, and 219c, and electrical signals generated by the light receiving transistors 219a, 219b, and 219c are input to sense a horizontal state of the aircraft, and the horizontal state detection result. It is characterized by consisting of a horizontal detection control unit 214 for generating a camera driving control signal to reflect the output to the camera driver 230.

As described above, according to the precise digital map production system by combining the coordinate information and the terrain information of the present invention, it is possible to provide a digital map produced by synthesizing the terrain information or coordinate information on the digital map consisting of only the coordinate information or terrain information. By doing so, the user can be supplied with a more precisely prepared digital map.

In addition, according to the precise digital map production system through the synthesis of coordinate information and terrain information of the present invention, the navigation terminal equipped with a digital map consisting of only the coordinate information, such as a lost situation such as a puddle formed on the current road or the current state of construction on the road By synthesizing and displaying the information on a numerical map composed of coordinate information, the driver (user) can recognize the situation and cope with it, thereby eliminating the cause of the accident.

1 is a block diagram schematically showing the configuration of a precision digital map production system by combining coordinate information and terrain information according to the present invention.
FIG. 2 is a block diagram schematically illustrating a configuration of an apparatus for obtaining ground coordinate information applied to FIG. 1.
3 is a schematic diagram schematically illustrating a configuration of a terrain information generating apparatus applied to FIG. 1.
4 and 5 are views for explaining the configuration of the horizontal sensing unit applied to FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail the geodetic data integrated management system for correcting the data transmitted from the geodetic field observer for each embodiment of the present invention.

1 is a block diagram schematically showing the configuration of a precision digital map production system by combining coordinate information and terrain information according to the present invention, Figure 2 is a block diagram schematically showing the configuration of the ground coordinate information acquisition apparatus applied to FIG. 3 is a schematic diagram for schematically illustrating a configuration of the terrain information generating apparatus applied to FIG. 1, and FIGS. 4 and 5 are views for explaining a configuration of the horizontal sensing unit applied to FIG. 3.

As shown in FIG. 1, the precision digital map production system through the coordinate information and the topographic information synthesis according to the present invention is largely based on the ground coordinate information acquisition device 100, the terrain information source providing device 200, and the digital map production server 300. ) And a data communication network 400.

The ground coordinate information obtaining apparatus 100 is provided on the ground moving object, photographs the surrounding features while the moving object moves, acquires coordinate information corresponding to the photographed image through the GPS receiver, and together with the photographed image. While sending the coordinate data, the ground reference point is surveyed and sent.

The terrain information source providing apparatus 200 captures a predetermined surface of the earth using a camera 220 installed to be rotatable in the lower part of the aircraft, and combines the captured surface image and the coordinate data obtained through the GPS receiver 240. Send it out.

The digital map production server 300 receives a surface photographed image photographed continuously through the terrain information source providing apparatus 200 and sets a condition in which a shape and a standard are set in advance to synthesize different photographed images photographed continuously. The ground reference point received from the ground coordinate information obtaining apparatus 100 as a reference point of the cut photographed image, while checking the actual coordinate information of the set ground reference point, Based on the ground reference point, the coordinate data received from the terrain information source providing apparatus 200 is checked to synthesize a photographed image to match the distance with the ground reference point, thereby generating a drawing image, and obtaining the ground coordinate information on the drawing image. Produce and provide a digital map by synthesizing the coordinate information acquired by (100) The.

The above ground coordinate information obtaining apparatus 100 includes a plurality of cameras 110 for acquiring a three-dimensional position of a measuring area facility as an image and outputting the three-dimensional position image signal of the measuring area facility, and mounted on the camera 110. Or detachably coupled to the rotation unit 120 to rotate the camera 110 in the left or right direction, and the rotation drive unit 130 to control the rotation unit 120 in response to the left or right rotation drive control signal. And, synchronized with the image data of the camera 110 to collect the position information of the camera 110 when the image is taken, and to output the position information of the collected camera 110 when the image signal output from the camera 110 GPS receiver 140, the inertial navigation measuring unit 150 for collecting and outputting the posture information and position information of the camera when the measurement area facilities are photographed by the camera 110, and scanning control In response to the signal, the laser beam is scanned on the surface of the measuring area facility at a tight interval, and the laser scanning unit 160 acquires and outputs quantitative shape information of the measuring area facility using the scanning signal, and the three-dimensional of the measuring area facility. The geodetic program for acquiring the image is mounted, and when a request signal for geodetic measurement facility received from the outside is received, the geodetic program is executed so that the plurality of cameras 110 can photograph the facility of the measurement area. Output the right or left rotation drive control signal to the rotation drive unit 130 to adjust the position of the plurality of cameras 110, and control the camera 110 and the GPS receiver 140 to measure the corresponding information having position information Receiving a video signal of a local facility receives the camera attitude information and position information from the inertial navigation measuring unit 150 The controller 170 generates coordinate information by using the image data and the numerical data, receives the data under the control of the controller 170, and outputs the data to the controller 170 or the controller 170. It is composed of a data transmission and reception unit 180 for transmitting the data output from the 170 to the outside.

The terrain information source providing apparatus 200 detects a horizontal state of the aircraft body and generates and outputs a camera driving control signal reflecting the horizontal sensing result, and a camera of the horizontal sensing unit 210. Camera driving unit 230 for receiving a driving control signal to rotate the camera 220 in a predetermined direction with a predetermined angle, and the GPS coordinate data from the GPS satellites when the ground surface is photographed through the camera 220 Receives and outputs the GPS coordinate data to output the GPS receiver 240 and the image taken from the camera 220 and the GPS coordinate data input from the GPS receiver 240 through the transmission and reception unit 260 the numerical value Control unit 250 for controlling to be output to the map production server 300.

The horizontal sensing unit 210 is filled with a transparent liquid, the transparent tube 211 is formed in the center of the bubble in a horizontal state and a plurality of light emitting diodes provided to face the center of the transparent tube (211) ( 218a to 218c and the plurality of light receiving transistors 219a to 219c and the electrical signals generated by the light receiving transistors 219a to 219c to receive the horizontal state of the aircraft and reflect the result of the horizontal state to control the camera driving. A horizontal sensing controller 214 generates a signal and outputs the signal to the camera driver 230.

Referring to the operation method of the precision digital map production system by combining the coordinate information and terrain information configured as described above are as follows.

<Digital map made up of coordinate information>

The operator first installs a camera 110 in a vehicle to generate coordinate information for a feature of a specific area by using the ground coordinate information obtaining apparatus 100, and then executes a feature for generating a feature information for a target object. Move the vehicle along the route.

At this time, the control unit 170 outputs a left or right rotation drive control signal to the rotation drive unit 130 according to the feature target coordinate information generation program, and the rotation drive unit 130 rotates the rotation unit 120 to the left or right in response thereto. The camera 110 to shoot the feature in the proper direction.

In addition, the control unit 170 controls the GPS receiver 140, the inertial navigation measuring unit 150, and the laser scan unit 160. That is, the GPS receiver collects the location information of the camera 110 when capturing the image by synchronizing with the image data of the camera 110 when the camera 110 captures a feature and outputs it to the controller 170. Position information (GPS information) of the camera 110 is output to the control unit 170. In addition, the inertial navigation measuring unit 150 collects posture information and position information of the camera 110 and outputs it to the controller 170 when the feature is photographed by the camera 110.

When the controller 170 receives the image signal of the feature from the camera 110 as described above, the controller 170 receives the GPS information, the attitude information, and the position information of the camera 110 to display the image signal of the feature on the digital map. Ensure that feature information is placed in the correct location to use.

Meanwhile, the laser scan unit 160 scans the laser beam on the surface of the feature in dense intervals in response to the scan control signal of the controller 170, and acquires a 3D image of the feature using the scan signal. The controller 170 transmits the 3D image of the acquired feature to the digital map production server 300.

Then, the digital map production server 300 cuts a still image from the image data of the feature received from the terrestrial coordinate information obtaining apparatus 100, and divides the left and right still images for each frame with respect to the cut still image. Matching left and right still images divided by each frame, determining an external expression element using the image registration, determining a three-dimensional ground coordinate of the measurement area facility using the calculated external expression element, and Convert the dimensional ground coordinates into 3D local coordinates and compare them with the local coordinates on the digital map of the previously stored feature, and if there is a difference, apply the newly created local coordinates to the digital map and save the local coordinates. Update the applied numeric map. Here, the external expression element is a position and attitude information at the time of camera shooting, and is compared with the camera attitude information and position information calculated by the inertial navigation measurement unit 150 and applied when determining the 3D ground coordinates of the measurement area facility. . At this time, the control unit 170 receives quantitative shape information of the measurement area facility from the laser scanning unit 160 and complements the image data obtained through the camera 110 and the GPS receiver 140.

The laser scanning unit 160 is a state-of-the-art surveying device that scans a myriad of laser beams at close intervals on the surface of the observation target to obtain three-dimensional coordinate values in the form of points. Existing applications of the laser scanning unit are mainly used to visualize and model 3D point coordinates.

<Making Digital Maps of Terrain Information>

On the other hand, the camera 220 is fixed so as to maintain the vertical direction toward the earth's surface regardless of the aircraft's gas state. The camera 220 is provided with a connection member between the aircraft and the camera 220 of the aircraft to operate in the vertical direction of the earth in the gravity direction according to the load of the camera.

In addition, the horizontal sensing unit 210 is installed at a position close to the camera 220 to detect a horizontal state of the aircraft body.

In addition, the horizontal sensing unit 210 is filled with a transparent liquid 215, such as water, and three pairs of light emitting diodes 218a, 218b, and 218c on the outer surface of the conventional leveler 217 in which bubbles 216 are formed therein. And the light receiving transistors 219a, 219b, and 219c face each other to face each other, so as to face each other, thereby detecting the movement and the direction of movement of the bubble 216 to detect the tilted direction as well as the horizontal deviation of the horizontal measurement object. Will be.

Here, the cross-sectional shape of the transparent tube 211 is preferably formed in a circular shape for the implementation of the convex lens effect to be described later.

The light emitting diodes 218a, 218b, and 218c are installed at the central portion in the longitudinal direction of the transparent tube 211 and sense the horizontal deviation of the transparent tube 211 from the first light emitting diode 218a and the transparent tube 211. Second and third light emitting diodes 218b and 218c are installed near both end portions in the longitudinal direction and detect the inclined direction of the transparent tube 211.

Similarly, the light receiving transistors 219a, 219b, and 219c are provided on the outer circumferential surface of the transparent tube 211 so as to face or face the first light emitting diode 218a, and the second and third light receiving transistors 219a, respectively. Second and third light receiving transistors 219b and 219c are installed on the outer circumferential surface of the transparent tube 211 so as to face the light emitting diodes 218b and 218c, or face each other.

Here, the first light emitting diode 218a and the first light receiving transistor 219a are used to detect the horizontal deviation of the transparent tube 211, and the second and third light emitting diodes 218b and 218c and the second and third light emitting diodes 218c and 218c. The three light receiving transistors 219b and 219c are for sensing the inclined direction of the transparent tube 211.

As shown in FIG. 5A, when there is no bubble between the first, second, and third light emitting diodes 218a, 218b, and 218c facing each other and the light receiving transistors 219a, 219b, and 219c, the transparent tube The transparent liquid 215 filled inside 211 serves as a convex lens so that light 1 emitted from the first, second, and third light emitting diodes 218a, 218b, and 218c receives first, second, and third light. The transistors 219a, 219b, and 219c are collected. That is, as described above, since there is no bubble and the transparent tube 211 has a circular cross section, a convex lens effect is generated.

On the other hand, as shown in FIG. 5B, between the first, second, and third light emitting diodes 218a, 218b, and 218c facing each other and the first, second, and third light receiving transistors 219a, 219b, and 219c. If the bubble 216 is present, the above-described convex lens effect does not occur and thus the light 2 emitted from the first, second and third light emitting diodes 218a, 218b and 218c receives the first, second and third light. It does not gather toward the transistors 219a, 219b, and 219c.

The horizontal sensing controller 214 causes the first, second, and third light emitting diodes 218a, 218b, and 218c to emit light, and then outputs a signal output from the first, second, and third light receiving transistors 219a, 219b, and 219c. By sensing the horizontal state of the aircraft, and applying the detected result to generate a camera driving signal to output to the camera driver 230, the camera driver 230 can move the camera 220 to shoot the desired range Make sure

In addition, the GPS receiver 240 receives the GPS coordinates of the time point at which the camera 220 is photographed from the GPS satellite and outputs them to the controller 250. The controller 250 controls the GPS coordinates and the photographed image output from the camera 220. Receives and applies the GPS coordinates to the photographed image transmitted to the digital map production server 300.

The horizontal detection unit 210 described above can be installed in plurality in order to more accurately detect the horizontal state of the aircraft, and also can be installed at various angles as needed, rather than when installing a single horizontal detection unit 210 When installing multiple units, the horizontal sensing efficiency will increase.

<Precision Digital Map Making by Combining Coordinate and Terrain Information>

Then, the digital map production server 300 cuts the received image to have a rectangular image form by executing a program for producing a topographic information digital map. At this time, the horizontal and vertical lengths of the rectangular image are set according to the standard.

In addition, the digital map production server 300 captures the center of the cut photographed image as the ground reference point generated by the ground coordinate information obtaining apparatus 100. At this time, it is preferable that the corresponding point of the photographed image taken as the ground reference point is not changed according to the land and sea or the feature.

On the other hand, the numerical map production server 300 sets an arbitrary point that can be compared with the ground reference point as a comparison point. In this case, the comparison point is a comparison value for determining the sameness between the actual geography and the captured image.

Since the setting of the comparison point is not particularly limited, it may be variously selected within the range of the photographed image around the ground reference point.

And the digital map production server 300 checks the actual GPS coordinates of the ground reference point, and the composite image of the GPS coordinates centering on the ground reference point in the photographed image is made. In this case, the standard of the GPS coordinates should be matched to the specification of the photographed image. Therefore, the GPS coordinates of the comparison points are checked to determine the actual distance between the ground reference point and the comparison point and the distance between the ground reference point and the comparison point on the photographed image, respectively. Check it.

The digital map production server 300 produces a digital map composed of terrain information in the same manner as above, and stores it in a separate DB for management.

As described above, the digital map production server 300 creates a digital map composed of coordinate information and a digital map composed of terrain information, and stores and manages each in a separate DB. After making an online connection to 300), selecting a digital map consisting of desired coordinate information and terrain information, and applying the selected two digital maps to the synthesis program provided by the digital mapping server 300, coordinate information and terrain Reproduce and provide a digital map of the synthesized information. The digital map produced in this way can provide more accurate map information.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be changed.

100: ground coordinate information acquisition device
110: camera 120: rotating part
130: rotary drive unit 140: gPS receiver
150: inertial navigation unit 160: laser scanning unit
170: control unit 180: data transmission and reception unit
200: terrain information source providing device
210: horizontal sensing unit
211: transparent tube 212: light emitting diode
213: light receiving transistor 214: control unit for horizontal detection
220: camera 230: camera driver
240: GPS receiver 250: control unit
260: transceiver
300: digital map production server
400: communication network

Claims (1)

In the precision digital map production system by combining coordinate information and terrain information,
It is provided in the mobile body, while photographing the surrounding features while the mobile body is moving, and obtains the coordinate information corresponding to the captured image through the GPS receiver to send the coordinate data along with the photographed image, while measuring the ground reference point A ground coordinate information obtaining apparatus 100 for transmitting coordinate information;
A terrain information source providing apparatus 200 which photographs the ground surface using a camera 220 installed to be rotatable under the aircraft, and transmits the captured ground surface photographed image and coordinate data obtained through the GPS receiver 240 together; And
Receiving the ground surface image photographed continuously through the terrain information source providing apparatus 200 to be cut according to a predetermined condition based on a predetermined condition in order to synthesize different photographed images continuously photographed, the ground While setting the ground reference point received from the coordinate information obtaining apparatus 100 as a reference point of the cut photographed image, checking the actual coordinate information of the set ground reference point and providing the terrain information source centering on the ground reference point in the photographed image. The coordinate data received from the device 200 is checked to synthesize a photographed image so that the distance with the ground reference point is matched to generate a drawing image, and the coordinate information obtained by the ground coordinate information obtaining apparatus 100 to the drawing image. Including a digital map making server 300 to synthesize a digital map Becomes the lure,
The above ground coordinate information obtaining apparatus 100,
A plurality of cameras 110 for acquiring a three-dimensional position of the feature as an image and outputting it as a three-dimensional position image signal of the feature, and are mounted to be detachable or attached to the camera 110, and the camera 110 is left or right. The rotation unit 120 to rotate in the direction, the rotation drive unit 130 to control the rotation unit 120 to rotate in response to a left or right rotation driving control signal, and the image data synchronized with the image data of the camera 110. The GPS receiver 110 collects the location information of the camera 110 and outputs the collected location information of the camera 110 when the video signal is output from the camera 110, and by the camera 110. Inertial navigation measuring unit 150 for collecting and outputting the posture information and position information of the camera when the feature is photographed, and the laser beam is scanned on the feature surface in response to the scanning control signal And a laser scanning unit 160 for acquiring and outputting quantitative shape information of a feature using a scan signal, and a geodetic program capable of acquiring a three-dimensional image of the feature. When the request signal is received, the geodetic program is executed to output the right or left rotation driving control signal to the rotation driving unit 130 so that the plurality of cameras 110 can photograph the corresponding feature. The camera 110 and the GPS receiver 140 are controlled to receive a corresponding position image signal having position information and the camera attitude information and position information are received from the inertial navigation unit 150. The controller 170 for generating coordinate information by using the image data and the numerical data and transmitting the coordinate information to the outside; It is composed of a data transmission and reception unit 180 for receiving data and outputting the data to the control unit 170 under control, or for transmitting the data output from the control unit 170 to the outside,
The terrain information source providing apparatus 200,
The camera 220 receives a horizontal sensing unit 210 that detects a horizontal state of the aircraft body and generates and outputs a camera driving control signal reflecting the horizontal sensing result, and receives a camera driving control signal of the horizontal sensing unit 210. ) Is a camera driver 230 to rotate in a predetermined direction with a certain angle, and the GPS receiver for outputting the GPS coordinate data to receive and output the GPS coordinate data from the GPS satellite when the ground surface is photographed through the camera 220 ( 240 and a control unit for controlling the photographed image inputted from the camera 220 and the GPS PS table data inputted from the GPS receiver 240 to be outputted to the digital map production server 300 through the transceiver 260. Consists of 250,
The horizontal sensing unit 210,
Filled with a transparent liquid, the transparent tube 211, the bubble is formed in the center in a horizontal state, the plurality of light emitting diodes (218a, 218b, 218c) and the plurality provided to face the center with the transparent tube 211 and a plurality of Generates a camera driving control signal by receiving the electric signals generated by the light receiving transistors 219a, 219b, and 219c and the electric signals generated by the light receiving transistors 219a, 219b, and 219c, and detecting a horizontal state of the aircraft and reflecting the horizontal state detection result. System for producing precision numerical map by synthesizing coordinate information and terrain information, characterized in that consisting of a horizontal sensing control unit 214 to output to the camera driver 220.

Images