KR101214083B1 - Datum point configuration system of numerical digital map with drawing image map - Google Patents

Abstract

PURPOSE: An image drawing system is provided to offer situation information of a corresponding area to a vehicle which passes through a corresponding reference point of a road. CONSTITUTION: A GPS artificial satellite(1100) broadcasts a GPS signal. A sign unmanned broadcasting unit(1300) is installed at a reference point around a road. The sign unmanned broadcasting unit moves according to a vehicle(1200) while broadcasting situation information of the road when detecting the access of the vehicle. A vehicle operating unit(1400) is installed at the vehicle and receives the GPS signal and situation information signal of the sign unmanned broadcasting unit. The vehicle operating unit outputs a multimedia signal which is drawn. A central server(1600) is connected to the sign unmanned broadcasting unit through a communication network(1500) and provides the situation information of the road.

Description

Datum point configuration system of numerical digital map with drawing image map}

The present invention relates to a drawing system capable of identifying a reference point of a topographic image for image mapping. More particularly, the present invention relates to a topographical image for processing image information that is identified from a reference point installed on a road to display the composite image image. A drawing system capable of processing a reference point identification of a.

On the road on which the vehicle runs, various signs indicating the state of the front are installed to inform the driver of the road status.

Road signs are generally installed in a place that is easy to see, but may be difficult to see by snow, rain, wind and foreign matters attached to the surrounding trees, especially at night.

A conventional technique that solves some of these problems is the "road traffic sign with increased brightness" according to Patent Registration No. 10-210600 (1999.04.27.).

1 is a functional configuration diagram of a road traffic sign according to an embodiment of the prior art.

Hereinafter, with reference to the accompanying drawings in detail the road traffic sign of the prior art housing (1), reflective box (2), signs (3), concave lens plate (4), PCB (5), LED (6) And a perforation 7.

The housing 1 is a box configuration of road traffic signs, and forms a perforation 7 so that the road signs are visible on the front side.

The reflective box 2 is installed at a portion where the perforated part 7 of the housing 1 is formed, and a silver foil is attached to the inside of the reflective box 2 to increase the light reflection effect.

One side of the reflective box 2 is provided with a PCB 5 formed with an electrical or electronic circuit, and one side of the PCB 5 is provided with a plurality of LEDs 6 are connected to a circuit and installed inside the reflective box 2. It is provided to be located.

On the other side adjacent to the perforated portion 7 of the reflective box 2, a sign 3 for displaying the contents of the traffic sign is formed of transparent acrylic and a concave lens plate having a plurality of concave lenses formed thereon. 4) is attached.

The flat surface of the concave lens plate 4 is attached in close contact with the sign 3, and the surface on which the concave portion of the concave lens is formed faces the direction in which the LED 6 is installed.

In the prior art, the light generated by the LED 6 is directly transmitted through the concave lens plate 4 and the sign 3, the scattered light passing through the sign (3) by scattering from the concave lens plate 4, concave lens There is diffracted light reflected from the plate 4 and reflected back from the reflecting box 2 and transmitted through the concave lens plate 4 and the sign 3.

The prior art has the advantage of generating the maximum illuminance by consuming minimal power because light is generated evenly in the entire part of the sign 3 by projection light, scattered light and diffracted light.

However, even in the prior art, it is still difficult to check the contents of the sign 3 in a diary with an opaque foreign matter attached to the front of the sign 3 or severe snow, rain, and fog.

Therefore, it is necessary to promote safe driving by developing a technology that can easily check the contents of a sign even when an opaque foreign material is attached to the sign or snow, rain, and fog are severe.

The present invention devised in order to solve the problems and necessity of the prior art as described above is passed through the identified reference point the situation information, including the local traffic information, guide information, weather information (climate), environmental information of the road ahead The present invention provides a drawing system capable of processing the reference point of the terrain image for image mapping which provides a safe driving environment by informing the driver of the limited vehicle using the directional radio signal and outputting the multimedia signal.

In order to achieve the object of the present invention, the drawing system capable of processing the reference point of the image image topographical image is a GPS satellite (1100) for broadcasting a GPS signal; A sign installed at a reference point around the road 900 on which the vehicle 1200 operates, and when the approach of the vehicle 1200 is detected, a sign that directionally broadcasts while rotating along the vehicle 1200 driving the situation information of the road 900. Unmanned broadcasting unit 1300; A vehicle driving unit (1400) installed in the vehicle (1200) and receiving the GPS signal and receiving and outputting the contextual information signal broadcasted by the signage unmanned broadcasting unit (1300) and converting the image signal into an imaged multimedia signal; And a road construction central server 1600 connected to the signage unmanned broadcasting unit 1300 and a communication network 1500 and providing situation information of the road 900. Including, the signage unmanned broadcasting unit 1300 is installed at the reference point loop sensor unit 1310 for detecting the approach of the vehicle 1200; A ground control unit 1320 connected to the loop sensor unit 1310 to check the approach of the vehicle 1200, to monitor each function unit, and to output a corresponding control signal; A coordinate unit 1330 for recording information on the longitude, latitude, elevation, and time of the signage unmanned broadcasting unit 1300 according to the control signal of the ground control unit 1320; A wireless communication unit 1340 for receiving the situation information provided by the road construction central server 1600 according to the control signal of the ground control unit 1320; A memory unit 1350 for recording and storing the situation information received according to the control signal of the ground control unit 1320; An IS-MB broadcasting unit 1360 for outputting the situation information at the frequency of an IS-MS band according to the control signal of the ground control unit 1320; A motor unit 1370 which repeats left turn and right turn by corresponding control signals of the ground control unit 1320; And a tena unit connected to the motor unit 1370 in a 270 degree angle range to rotate left and right in a 270 degree angle, and input the situation information output from the ISM broadcasting unit 1360 to wirelessly broadcast at the frequency of an ISM band. (1380); The antenna part 1380 includes a sign antenna 1381 which outputs the situation information as a wireless signal of an SM band and records traffic safety indication information to be used as a traffic sign. A rotating shaft (1382) installed at the upper side of the sign antenna (1381) in a fixed state and rotating in a left turn and right turn direction in a range of 270 degrees about an axis; A worm wheel gear 1383 installed on an outer circumferential surface of the middle portion of the pivot shaft 1382; A worm gear 1384 corresponding to the worm wheel gear 1383 and installed on a rotation shaft of the motor unit 1370 to transmit a rotational driving force; A fixed shaft (1386) which is inserted into the rotating shaft (1382) to form a rotating hole (1385) to be rotated and fixedly installed on the ground; A first bearing 1387 installed on a bottom surface of the rotation hole 1385 and supporting the rotation shaft 1382 smoothly; And a second bearing 1388 installed at a side of the rotation hole 1385 to smoothly rotate while supporting the rotation shaft 1382 in a vertical state. Includes, the vehicle operation unit 1400 is a GPS receiver 1410 for receiving the GPS signal of the GPS satellite 1100 and analyzes the coordinate information; A navigation controller 1420 connected to the GPS receiver 1410 to receive the coordinate information, monitor each function unit, and output a control signal; An SM receiver 1430 for wirelessly receiving the situation information broadcasted in an SM band by a corresponding control signal of the navigator 1420; An image drawing unit 1440 for retrieving a terrain image corresponding to the coordinate information according to the control signal of the navigator unit 1420, and outputting an image to be synthesized with the situation information; A video unit 1450 for displaying the contextual information synthesized with the image drawing of the searched topographical image by a corresponding control signal of the navigator 1420 as a visual signal; An audio unit 1460 for outputting the contextual information synthesized with the searched topographical image information according to a corresponding control signal of the navigator 1420 as an audio signal; An input unit 1470 connected to the nav control unit 1420 and inputting a command signal; As shown in FIG.

The present invention having the above-described configuration can be applied to all roads, and the advantage of providing situation information including traffic information, guide information, weather information, environmental information, and news information of the region to the vehicle passing the corresponding reference point of the road. There is this.

In addition, the present invention is installed at the reference point of the road and the traffic sign function while serving as a traffic sign antenna to rotate the radio signal along the direction of movement of the vehicle to send a directional radio signal has no effect on other vehicles nearby and the reference point There is an advantage to broadcast only limited to the vehicle passing through.

The present invention also provides a multimedia signal by quickly and accurately image-processing the situation information including the traffic information on the road of the corresponding area by passing a reference point even in a weather where foreign matter is attached to the traffic sign or snow, rain, and fog are severe. The output has the advantage of providing a traffic environment that can drive safely.

1 is a functional configuration diagram of a road traffic sign according to an embodiment of the prior art,
FIG. 2 is a functional configuration diagram of a drawing system capable of performing reference point identification processing of a topographic image for image drawing according to an embodiment of the present invention;
3 is a detailed functional configuration of the signage unmanned broadcasting unit according to an embodiment of the present invention,
4 is a detailed functional configuration of the vehicle operating unit according to an embodiment of the present invention;
FIG. 5 is a detailed functional configuration of the tena portion according to an embodiment of the present invention;
And
6 is an explanatory view of an operating state of a tenater portion according to an embodiment of the present invention.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description, "image drawing" is a navigation terrain image that can guide the driving destination of the vehicle by electronic map, and various driving information, traffic information, climate information, accident information, emergency traffic information, etc. The description will be made so that the matching is displayed at the corresponding position.

In addition, in the following description, the situation information will be described as including traffic information, climate information, traffic volume information, construction information, surrounding facility information, tourism information, and the like.

FIG. 2 is a functional configuration diagram of a drawing system capable of performing reference point identification processing of a topographic image for image mapping according to an embodiment of the present invention, and FIG. 3 is a detailed functional configuration of an unmanned sign broadcasting unit according to an embodiment of the present invention. 4 is a detailed functional configuration diagram of a vehicle operating unit according to an embodiment of the present invention, FIG. 5 is a detailed functional configuration diagram of an antenna unit according to an embodiment of the present invention, and FIG. According to one embodiment of the present invention is an explanatory view of the operation state of the tena portion.

Hereinafter, referring to the accompanying drawings in detail, the drawing system 1000 capable of processing the reference point of the terrain image for image drawing is a GPS satellite 1100, a vehicle 1200, an unmanned broadcasting unit 1300, a vehicle navigation unit ( 1400, a communication network 1500, and a road construction central server 1600.

The GPS satellite 1100 consists of 24 satellites that constantly operate at an altitude of 20 to 25 km (Km) above the ground, preferably at an average of about 20.183 km, and receive at least three GPS satellites (1100). In the case of signal analysis, a global positioning system (GPS) that broadcasts GPS signals that can be analyzed at sea level, longitude, latitude, time, and the like, is generally known.

The vehicle 1200 is a general means of transportation that can move on the road 900 together with people and various devices, equipment, cargo, and the like.

The signage unmanned broadcasting unit 1300 is installed at a reference point around the road 900 and detects the approach of the vehicle 1200 so that the vehicle can rotate according to the movement of the vehicle and receive the situation information of the road ahead only in the vehicle 1200. Broadcast with an antenna.

Sign unmanned broadcasting unit 1300 is a loop sensor unit 1310, ground control unit 1320, coordinate unit 1330, wireless communication unit 1340, memory unit 1350, SM broadcasting unit 1360, motor unit 1370 In this case, the tena portion 1380 is included.

The loop sensor unit 1310 is installed at a reference point along a corresponding lane of the road 900 on which the vehicle 1200 operates, and constitutes a loop of electrically conductive conductors, and functions as a coil of an electric circuit.

When the vehicle 1200 passes through the roof sensor unit 1310, the magnetic field changes and detects the change in the magnetic field, thereby detecting the approach of the vehicle 1200, and, if necessary, two or more can be installed at the reference point.

The ground control unit 1320 is connected to the loop sensor unit 1310 to receive a detection signal in a state in which the vehicle 1200 approaches, and to provide context information about the front of the traveling direction with the ISM band frequency signal and the directional antenna. In addition to controlling the broadcast to the broadcaster, each function unit is monitored and the corresponding control signal is output.

The Industrial Scientific Medical band (ISM) band is a frequency band in which 2.4 GHz or 5.7 GHz bands are used, and users can use them free of charge without receiving a separate license from the government.

The ISM band enables 11 Mbps to 54 Mbps data communication.

The ISM band has specifications of maximum output and spreading factor in order to minimize interference among users, and the frequencies of 900 MHz, 2.4 GHz and 5.7 GHz bands are allocated worldwide, and recently, Bluetooth Also used in

The coordinate unit 1330 records and stores information such as longitude, latitude, elevation, time, etc. of the place where the unmanned sign broadcasting unit 1300 is installed by the control and management of the ground control unit 1320.

Since the wireless communication unit 1340 passes through the communication network 1500 according to the control signal of the ground control unit 1320, the wireless communication unit 1340 is connected to the central road 1600 of the road construction and receives the situation information including the coordinate information of the road.

The ground controller 1320 analyzes the coordinate information of the received situation information in detail, selects the situation information corresponding to the periphery of the coordinate information read from the coordinate unit 1330, and records the recorded situation information in the allocated area of the memory unit 1350.

The ISM broadcasting unit 1360 modulates and amplifies the situation information corresponding to the traveling direction of the road 900 by the corresponding control signal of the ground control unit 1320 to the frequency of the ISM band, and outputs the amplification to the tenater unit 1380 for each time. .

For the sake of simplicity, the following description will be made by selecting and using a frequency of the 2.4 GHz band as an SM band, and if necessary, a frequency of another band may be used.

The motor unit 1370 repeats the left turn or the right turn in response to the control signal of the ground controller 1320.

The tenater unit 1380 directionally outputs the situation information input from the ISM broadcasting unit 1360 as a radio frequency signal of the ISM band, and rotates left or right in an 270 degree angle range by driving the motor unit 1370. Turn right

The antenna unit 1380 rotates in a range of about 270 degrees along the moving direction of the vehicle 1200 while directionally broadcasting the situation information wirelessly.

Directional broadcasting is a technology for receiving the broadcasted situation information when the vehicle 1200 is located in a specific area.

In order to move the direction of the directional broadcast signal along the direction in which the vehicle 1200 moves, the tenater part 1380 is rotated for a time and the driving force for the rotation of the tenater part 1380 is provided from the motor part 1370. The motor unit 1370 is driven by the corresponding control signal of the ground control unit 1320.

The tenater unit 1380 is connected to the motor unit 1370 and rotates in the left and right rotation directions by the corresponding control signal at an angle range of about 270 degrees, and inputs the situation information output from the ISM broadcasting unit 1360 to receive the SM. ISM) radio signal broadcasting in the band frequency, sign antenna (1381), rotating shaft (1382), worm wheel gear (1383), worm gear (1384), rotating hole (1385), fixed shaft (1386), first bearing (1387). ), And a second bearing 1388.

At this time, when the ground control unit 1320 is determined that the vehicle 1200 passes through the reference point or the loop sensor unit 1310, the tenor unit 1380 rotates at a 270 degree angle for a predetermined time in a moving direction of the vehicle 1200. After rotating in the range, the motor unit 1370 is controlled to rotate in the reverse direction to recover the original state.

The sign antenna 1381 displays the contents of traffic signs including speed limit, caution sign, danger sign, regulatory sign, indication sign, and auxiliary sign by numbers, pictures, letters, symbols, etc. It is configured to include a wireless antenna of the SM band band to directionally transmit the status information of the (900).

The directional antenna may be any one selected from among those including a yagi antenna, a dish antenna, a loop antenna, and the like.

Rotating shaft (1382) is installed in the fixed state of the sign antenna (1381) at the upper end and can be turned left or right in the range of about 270 degrees around the axis and the shape of the cross section is preferably circular but includes a square It can also be polygonal.

A worm wheel gear 1383 is installed in a fixed state in the middle of the rotation shaft 1382 to transmit the rotational driving force to the rotation shaft 1382.

The worm gear 1384 is installed on the rotating shaft of the motor unit 1370 in a fixed state, and is installed so as to mesh with each other in response to the worm wheel gear 1383. The worm gear 1384 outputs the rotational driving force output by the motor unit 1370. Transmission to worm wheel gear 1383.

The fixed shaft 1386 has a columnar shape and is installed on the ground of the reference point around the road 900 to form a pivot hole 1385 in the center along the axis of the pillar.

The first bearing 1387 is installed on the bottom surface of the rotation hole 1385 so that the rotation is performed well from the state in which the rotation shaft 1302 is inserted into the rotation hole 1385.

The second bearing 1388 is installed on the wall surface of the rotation hole 1385 to support the rotation shaft 1382 to maintain the vertical state, so that the rotation is performed well.

That is, the tenater part 1380 is installed at a reference point around the road 900 and transmits the driving force of the motor unit 1370 to the pivot shaft 1342 through the worm gear 1344 and the worm wheel gear 1383. 1382) to rotate left or right in an angle range of about 270 degrees.

In this case, the first bearing 1387 supports the weight of the rotating part including the rotating shaft 1382 and the sign antenna 1381 so that the rotating is easily performed, and the second bearing 1388 of the rotating shaft 1382 Even when a part of the lower part is inserted into the rotating hole 1385, even when the upper part of the rotating shaft 1382 and the sign antenna 1381 are affected by rain or wind, the rotation is smoothly performed.

The vehicle operation unit 1400 is installed at a position that is easy for a driver of the vehicle 1200 to observe and receives a GPS signal of the GPS satellite 1100 and is coordinated by an unmanned broadcasting unit 1300 located at a reference point around the road 900. It receives the situation information signal broadcast with the information corresponding to the information wirelessly of the SM band frequency, converts the image into a multimedia signal including the visualized and audio signal and outputs it.

The vehicle operating unit 1400 includes a GPS receiver 1410, a navigation controller 1420, an SM receiver 1430, an image drawing unit 1440, a video unit 1450, an audio unit 1460, and an input unit 1470. It includes a configuration.

The GPS receiver 1410 receives the GPS signal from the GPS satellite 1100 and analyzes the coordinate information including latitude, longitude, elevation, and time.

The navigation controller 1420 is connected to the GPS receiver 1410 receives coordinate information, monitors each function unit, and outputs corresponding control signals required for normal operation of each function unit.

The SM receiver 1430 wirelessly receives the situation information of the road 900 broadcast by the signless unmanned broadcasting unit 1300 at the frequency of the ISM band of the 2.4 GHz band and applies it to the navigation controller 1420.

The navigation controller 1420 extracts coordinate information by analyzing the situation information applied by the SM receiver 1430 and inputs the corresponding situation information when the coordinate information is the same as compared with the coordinate information applied by the GPS receiver 1410. do.

The context information is a multimedia signal consisting of context information by an audio signal and a video signal.

The navigator 1420 controls the image drawing process to output the input situation information to the image drawing unit by matching the input coordinate information.

The image drawing unit 1440 receives coordinate information analyzed by the GPS receiver 1410 under the control of the navigation controller 1420 and searches for navigation terrain image information to help the vehicle 1200 move in the corresponding area. Output

On the other hand, the image drawing unit 1440 is a situation in the navigation terrain image information for the operation of the vehicle 1200 when the navigation control unit 1420 applies the situation information received from the SM receiver 1430 with the corresponding control signal An image drawing process for matching information is performed.

The navigator 1420 inputs information on which the contextual information is imaged into the navigation terrain image information, separates the video signal into an audio signal, and outputs a video signal to the video unit 1450, and outputs an audio signal to the audio unit 1460. Output to

The video unit 1450 is preferably configured as an LCD, and visual information including terrain image, map, numbers, letters, letters, symbols, and the like is provided by the corresponding control signal of the navigation control unit 1420. The video signal is converted and output.

The audio unit 1460 amplifies the situation information to a predetermined level by the corresponding control signal of the navigator 1420, converts the situation information into an audio signal, and outputs the audio signal.

The input unit 1470 may be connected to the navigation controller 1420 to set the vehicle operating unit 1400 in an on-off state or input various command signals and data information necessary for operation.

The signage unmanned broadcasting unit 1300 analyzes coordinate information of the situation information received from the road construction central server 1600, stores the situation information corresponding to the surroundings in the memory 1350, and wirelessly broadcasts the information.
Referring to FIG. 6, the vehicle 1200 in which the vehicle operating unit 1400 is installed operates the road 900, and the unmanned broadcasting unit 1300 monitors the loop sensor unit 1310 to monitor the vehicle ( Detect the position of 1200).

When the vehicle 1200 is detected at the "a" position, the signage unmanned broadcasting unit 1300 rotates the sign antenna 1381 and locates in the "A" direction and broadcasts context information through the directional signal 1390.

The vehicle operating unit 1400 installed in the vehicle 1200 receives the situation information broadcasted by the sign antenna 1381 as the directional signal 1390, and outputs the image information by processing the image. It is possible to check accurately in advance without being affected by visibility, day and night, etc., which has the advantage of creating an environment for safe driving.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

1000: Drawing system capable of processing reference point identification of terrain image for image drawing
900: Road 1100: GPS satellite
1200: vehicle 1300: unmanned broadcasting unit
1310: loop sensor unit 1320: ground control unit
1330: coordinate unit 1340: wireless communication unit
1350: memory unit 1360: ISM broadcasting unit
1370: motor part 1380: tena part
1381: sign antenna 1382: pivot axis
1383: Worm Wheel Gear 1384: Worm Gear
1385: rotating hole 1386: fixed shaft
1387: first bearing 1388: second bearing
1400: vehicle operation unit 1410: GPS receiver
1420: navigation control unit 1430: SM receiver
1440: Image drawing unit 1450: Video portion
1460: audio unit 1470: input unit

Claims (1)

A GPS satellite 1100 that broadcasts a GPS signal;
A sign installed at a reference point around the road 900 on which the vehicle 1200 operates, and when the approach of the vehicle 1200 is detected, a sign that directionally broadcasts while rotating along the vehicle 1200 driving the situation information of the road 900. Unmanned broadcasting unit 1300;
A vehicle driving unit (1400) installed in the vehicle (1200) and receiving the GPS signal and receiving and outputting the contextual information signal broadcasted by the signage unmanned broadcasting unit (1300) and converting the image signal into an imaged multimedia signal; And
A road construction central server 1600 connected to the signage unmanned broadcasting unit 1300 and a communication network 1500 and providing situation information of the road 900; Including but not limited to:
The signage unmanned broadcasting unit 1300 is
A loop sensor unit 1310 installed at the reference point to detect an approach of the vehicle 1200;
A ground control unit 1320 connected to the loop sensor unit 1310 to check the approach of the vehicle 1200, to monitor each function unit, and to output a corresponding control signal;
A coordinate unit 1330 for recording information on the longitude, latitude, elevation, and time of the signage unmanned broadcasting unit 1300 according to the control signal of the ground control unit 1320;
A wireless communication unit 1340 for receiving the situation information provided by the road construction central server 1600 according to the control signal of the ground control unit 1320;
A memory unit 1350 for recording and storing the situation information received according to the control signal of the ground control unit 1320;
An IS-MB broadcasting unit 1360 for outputting the situation information at the frequency of an IS-MS band according to the control signal of the ground control unit 1320;
A motor unit 1370 which repeats left turn and right turn by corresponding control signals of the ground control unit 1320; And
It is connected to the motor unit 1370 and rotates in the left and right directions in the 270 degree angle range and inputs the situation information outputted by the ISM broadcasting unit 1360 and wirelessly broadcasts at the frequency of the ISM band during the tenth part ( 1380); Including;
Tenabu 1380 during the first time
A sign antenna 1381 which outputs the situation information as a wireless signal of an SM band and records traffic safety indication information and is used as a traffic sign;
A rotating shaft (1382) installed at the upper side of the sign antenna (1381) in a fixed state and rotating in a left turn and right turn direction in a range of 270 degrees about an axis;
A worm wheel gear 1383 installed on an outer circumferential surface of the middle portion of the pivot shaft 1382;
A worm gear 1384 corresponding to the worm wheel gear 1383 and installed on a rotation shaft of the motor unit 1370 to transmit a rotational driving force;
A fixed shaft (1386) which is inserted into the rotating shaft (1382) to form a rotating hole (1385) to be rotated and fixedly installed on the ground;
A first bearing 1387 installed on a bottom surface of the rotation hole 1385 and supporting the rotation shaft 1382 smoothly; And
A second bearing 1388 installed at a side of the rotation hole 1385 to smoothly rotate while supporting the rotation shaft 1382 in a vertical state; Including,
The vehicle operating unit 1400 is
A GPS receiver 1410 for receiving a GPS signal of the GPS satellite 1100 and analyzing the GPS signal with coordinate information;
A navigation controller 1420 connected to the GPS receiver 1410 to receive the coordinate information, monitor each function unit, and output a control signal;
An SM receiver 1430 for wirelessly receiving the situation information broadcasted in an SM band by a corresponding control signal of the navigator 1420;
An image drawing unit 1440 for retrieving a terrain image corresponding to the coordinate information according to the control signal of the navigator unit 1420, and outputting an image to be synthesized with the situation information;
A video unit 1450 for displaying the contextual information synthesized with the image drawing of the searched topographical image by a corresponding control signal of the navigator 1420 as a visual signal;
An audio unit 1460 for outputting the contextual information synthesized with the searched topographical image information according to a corresponding control signal of the navigator 1420 as an audio signal; And
An input unit 1470 connected to the nav control unit 1420 to input a command signal; A drawing system capable of processing a reference point check processing of the terrain image for imagery, comprising a.

Images