Spatial image drawing system for improving drawing precision using drone and image

Abstract

The present invention relates to a spatial image mapping system, and more specifically, to a spatial image mapping system that improves the precision of mapping using a drone and a captured image, characterized by comprising at least three movable vehicles equipped with an RF transmitter and a GNSS receiver to perform a coordinate reference point function, a drone that identifies each RF transmitter through RF received from the RF transmitter and generates a captured image coded by each RF transmitter according to the shooting zone using coordinate information received from the GNSS receiver, and a management server equipped with a mapping module that receives the captured image generated by the drone and performs mapping.

Description

Technology Field

[0001] The present invention relates to a spatial image mapping system, and more specifically, to a spatial image mapping system that improves the precision of mapping using a drone and captured images. Background Technology

[0003] With the development of computers and software, as well as precision optical instruments and laser measuring instruments, it has become possible to produce digital maps, and related technologies have steadily advanced, leading to a rapid shift from traditional analog map production to digital map production.

[0004] In mapmaking, drawing refers to the work of creating a map of two or three dimensions based on spatial information. With the development of digital output technology, it has recently become possible to create maps of digital images or three-dimensional graphic images, and is therefore also called spatial image drawing, meaning that it is like a real photograph.

[0005] As spatial imagery technology has developed in this way, it has become possible to produce more realistic and precise maps, and it has become easier to update spatial imagery information in response to changes in spatial information.

[0006] With these developments, spatial information is widely utilized today as popular information. As accuracy and update efficiency have significantly improved, it is being widely applied in various fields as useful information with high reliability for utilization.

[0007] Figure 1 (a) is a drawing image in which spatial information is simplified as much as possible, and (b) is a drawing image showing the actual terrain. In the case of Figure 1 (a), the road conditions of the terrain and the arrangement of the terrain features image (B) can be easily and quickly understood by the user. However, when comparing the drawing image with the terrain at the actual site as in the case of Figure 1 (b), the user will feel confused about whether the actual site and the drawing image are identical due to the appearance of the terrain features images (B, B') and terrain features that are different from each other.

[0008] To resolve these issues, a system capable of modifying and updating drawing images has been developed.

[0009] The spatial image plot correction and update system installs a position measuring device on actual terrain features at the site to verify the image of the terrain features, separately collects the coordinate values ​​and position information of the position measuring device from the GNSS (Global Navigation Satellite System), and the image plotter combines the verified image of the terrain features with the separately measured coordinate values ​​and position information to update the existing plot images stored in the digital map DB.

[0010] However, since the positioning device used in the spatial image mapping correction and update system operates in conjunction with GNSS at the site, it was generally manufactured exclusively for open fields or relatively secluded remote areas where there is no obstruction by various terrain features.

[0011] Therefore, in urban areas where high-rise buildings are concentrated, communication with satellites is difficult, and frequent jamming signals cause various sensors to malfunction. Consequently, accurate location measurement of topographic features was impossible, and there were limitations to installing positioning devices on every building. Furthermore, because aerial photography is costly, it could not be performed frequently and repeatedly, making it difficult to quickly reflect changes in topographic features.

[0012] Furthermore, aerial photography has limitations in that it cannot remain in the shooting area because the aircraft passes over the point at high speed; consequently, it causes the inconvenience of having to circle the aircraft and reshoot every time if necessary, leading to significant waste in terms of time and cost.

[0013] Therefore, there is a need for a means of flight to replace aerial photography using aircraft, which is low-cost, allows for periodic shooting over short periods, and ensures flight stability while enabling precise shooting.

[0014] The matters described above as background technology are intended solely to enhance understanding of the background of the present invention and should not be construed as an acknowledgment that they constitute prior art already known to those skilled in the art. The problem to be solved

[0016] The present invention aims to solve the problems of the aforementioned prior art by providing a spatial image mapping system that improves the precision of mapping using drones and captured images, which maps topographic images of various buildings concentrated in urban areas in a manner similar to actual topography and applies them to accurate locations within the mapped image.

[0017] In addition, another objective of the present invention is to provide a spatial image drawing system that improves the precision of drawing using a drone and captured images, which enables the completion of a drawing image that can guarantee reliability by rapidly reflecting changing terrain features using a drone, which is inexpensive and easy to capture periodically in short intervals, instead of aerial photography using an airplane, which requires long intervals and high costs.

[0018] The technical problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description of the present invention. means of solving the problem

[0020] The configuration of the present invention for achieving the above purpose is characterized by comprising: at least three movable vehicles equipped with RF transmitters and GNSS receivers to perform coordinate reference point functions; a drone that identifies each RF transmitter through RF received from the RF transmitters and generates a captured image coded for each RF transmitter according to the shooting zone using coordinate information received from the GNSS receiver; and a management server equipped with a drawing module that receives the captured image generated by the drone and performs drawing.

[0021] A spatial image mapping system that improves the precision of mapping using a drone and a captured image according to an embodiment of the present invention preferably further comprises: an installation support unit mounted on the upper part of the vehicle; an installation coupling plate coupled to the upper part of the installation support unit; a plurality of radiation supports coupled to the upper part of the installation coupling plate; a heat radiation plate coupled to the upper part of the radiation supports; a heat transfer support member coupled to the upper part of the heat radiation plate; a heat transfer plate coupled to the upper part of the heat transfer support member; and a vehicle stereo camera coupled to the upper part of the heat transfer plate.

[0022] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the heat transfer support member preferably comprises: a base member that contacts the lower part of a heat transfer plate; an elastic support member disposed inside the base member, with one side contacting the lower base of the base member and the other side contacting the upper base of the base member to elastically support the lower base and the upper base; an elastic guide member disposed spaced apart from the elastic support member, with one side fixed to the lower base and the other side fixed to the upper base, and one side inserted into the other side and elastically supported in the inserted state; a first heat transfer member disposed in the center of the base member, with the upper side contacting the heat transfer plate and the other side exposed to the outside of the heat radiation plate to transfer heat to the atmosphere; and a plurality of second heat transfer members disposed spaced apart from the first heat transfer member, with the upper side contacting the heat transfer plate and the other side exposed to the outside of the heat radiation plate to transfer heat to the atmosphere.

[0023] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the elastic support unit preferably comprises: a first support base fixed to the lower surface of an upper base; an elastic member whose upper portion is fixed to the first support base; and a second support base fixed to the upper surface of a lower base and to which the lower portion of the elastic member is connected.

[0024] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the elastic guide unit preferably comprises: a guide body fixed to the lower surface of an upper base; a lifting guide, the upper end of which is inserted into a body groove formed in the lower part of the guide body and the lower end of which is fixed to the upper surface of a lower base; and a guide elastic part disposed inside the body groove to elastically support the upper part of the lifting guide.

[0025] In a spatial image drawing system that improves the precision of drawing using a drone and captured images according to an embodiment of the present invention, it is preferable that the first heat transfer unit has a larger contact area with the heat transfer plate than each second heat transfer unit.

[0026] In a spatial image mapping system that improves the precision of mapping using a drone and captured images according to an embodiment of the present invention, it is preferable that the elastic support member and the elastic guide member elastically press the heat transfer plate in the direction of the vehicle stereo camera.

[0027] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, it is preferable that the first heat transfer member penetrates the lower first hole formed in the lower base and is coupled to the upper first hole formed in the upper base, thereby making surface contact with the heat transfer plate.

[0028] In a spatial image drawing system that improves the precision of drawing using a drone and captured images according to an embodiment of the present invention, it is preferable that the plurality of second heat transfer members penetrate each lower second hole formed in the lower base and are coupled to each upper second hole formed in the upper base to make surface contact with the heat transfer plate.

[0029] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the first heat transfer member is preferably formed in a solid cylindrical shape.

[0030] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the second heat transfer member is preferably formed in the shape of a plate with a solid interior.

[0031] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the installation support unit preferably comprises: an installation support case that is hollow and is positioned at the bottom of a vehicle stereo camera; an up-and-down adjustment part that is coupled to the center of the inner lower surface of the installation support case and is movable up and down; a pair of left and right fixing parts that are coupled to both sides of the inner lower surface of the installation support case and are positioned to face each other with the up-and-down adjustment part in between; and a pair of fixing supplementary parts provided at the bottom of the installation coupling plate.

[0032] In a spatial image drawing system that improves the precision of drawing using a drone and a captured image according to an embodiment of the present invention, the left and right fixing unit preferably comprises: an up-and-down operating part coupled to the inner lower surface of an installation support case so as to be movable up and down; a fixed support part spaced apart from the up-and-down operating part and fixedly coupled to the inner lower surface of the installation support case; a lower fastening plate coupled transversely to the upper end of the fixed support part and having a plurality of lower fastening teeth; and an upper fastening plate having one end rotatably coupled to the upper end of the up-and-down operating part, and a central part rotatably coupled to the upper part of the lower fastening plate and having a plurality of upper fastening teeth. Effects of the invention

[0034] The present invention, having the above configuration, has the effect of enabling the drawing of topographic images of various buildings concentrated in urban areas in a manner similar to actual topographic images and applying them to accurate locations within the drawing image, while using a drone, which is inexpensive and allows for periodic shooting in short intervals, instead of aerial photography using an airplane, which requires a long interval and incurs high costs, to quickly reflect changing topographic images and complete a drawing image that can guarantee reliability. Brief explanation of the drawing

[0036] It should be noted that the attached drawings are provided as examples for reference to help understand the technical concept of the present invention, and the scope of the rights of the present invention is not limited by them. FIG. 1 is an exemplary diagram schematically illustrating an image drawn by an embodiment of a conventional method. FIG. 2 is an exemplary block diagram of a spatial image drawing system that improves the precision of drawing using a drone and captured images according to an embodiment of the present invention. FIG. 3 is an exemplary diagram of a vehicle constituting a spatial image mapping system according to an embodiment of the present invention. FIG. 4 is a conceptual diagram showing an example of operation of a computer unit constituting a spatial image mapping system according to an embodiment of the present invention. FIG. 5 is a drawing showing the internal view of an installation support unit according to an embodiment of the present invention. FIG. 6 is a drawing showing a state in which a heat transfer support member according to an embodiment of the present invention is mounted between a heat transfer plate and a heat radiation plate. FIG. 7 is a schematic diagram showing a heat transfer support member according to an embodiment of the present invention. FIG. 8 is a schematic diagram showing the first heat transfer section and the second heat transfer section of a heat transfer support member according to an embodiment of the present invention. Specific details for implementing the invention

[0037] Hereinafter, the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement it. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0038] To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification.

[0039] In addition, terms or words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0041] FIG. 2 is an exemplary block diagram of a spatial image drawing system that improves the precision of drawing using a drone and captured images according to an embodiment of the present invention, FIG. 3 is an exemplary diagram of a vehicle that constitutes a spatial image drawing system according to an embodiment of the present invention, and FIG. 4 is a conceptual diagram showing an example of an operation of a computer that constitutes a spatial image drawing system according to an embodiment of the present invention.

[0042] The spatial image plotting system according to the present invention may be configured to include at least three movable vehicles (100, 102, 104) equipped with RF transmitters (R1, R2, R3) and GNSS (Global Navigation Satellite System) receivers (G1, G2, G3) to perform coordinate reference point functions, a drone (200) that identifies each RF transmitter (R1, R2, R3) through RF received from the RF transmitters (R1, R2, R3) and generates a captured image coded for each RF transmitter (R1, R2, R3) according to the shooting zone using coordinate information received from the GNSS receivers (G1, G2, G3), and a management server (300) having a plotting module (330) that receives the captured image generated by the drone (200) and performs plotting.

[0043] In the present invention, regarding the vehicles (100, 102, 104), as shown in the example of FIG. 3, they include a vehicle controller (110) with a memory installed therein, and an RF transmitter (R1, R2, R3) that emits RF according to a control signal of the vehicle controller (110) may be installed one by one in each vehicle.

[0044] In addition, each of the above vehicles (100, 102, 104) may also be equipped with a GNSS receiver (G1, G2, G3) that communicates with a satellite under the control signal of the vehicle controller (110) to verify location information, i.e., coordinate information. Furthermore, in the present invention, a vehicle stereo camera (120) is additionally installed on the roof of each of the above vehicles (100, 102, 104) to capture stereoscopic images. This is intended to be utilized in cases where the side image may not appear properly when the drone (200) takes a picture from directly above a tall building, so the side image is acquired as a stereoscopic image and then combined with a flat image to convert the overall exterior image into a three-dimensional stereoscopic image.

[0045] In the present invention, the RF transmitters (R1, R2, R3) emit RF so that the drone (200) can receive it. Since the emitted signal includes unique RF having different frequency bands for each RF transmitter (R1, R2, R3), the drone (200) can identify the RF transmitter (R1, R2, R3) that emitted the RF through the received RF. Additionally, when the drone (200) enters the target ground, i.e., the shooting zone, the RF transmitters (R1, R2, R3) can be controlled by a vehicle controller (110) installed in each vehicle (100, 102, 104) to emit continuously in bursts or at regular intervals.

[0046] In the present invention, the drone (200) is equipped with a drone controller (210) for control necessary for implementing functions, including wireless communication with a management server (300) and a vehicle (100, 102, 104). At this time, the drone controller (210) may be configured to include a camera (211) for shooting a shooting zone, an RF receiver (212) for receiving signals transmitted from RF transmitters (R1, R2, R3), an altimeter (213) for measuring the altitude at which the drone (200) is located, a coordinate system (214) for verifying the GNSS coordinates of the point where the drone (200) is currently located through communication with a satellite, a calculator (215) for calculating the distance on the ground to each RF transmitter using the RF signal received by the RF receiver (212), the location information verified by the coordinate system (214), and the altitude information verified by the altimeter (213), a location information synthesizer (216) for verifying the distance information calculated by the calculator (215) and the location information verified by the coordinate system (214) and synthesizing the location information onto the shooting image of the shooting zone, and a drone memory (217) for storing the synthesized image.

[0047] Here, the camera (211) is a device for taking pictures of the shooting zone, and while an analog or digital method may be applied, it is preferable to apply a stereo camera for drones to secure stereoscopic images. In the present invention, the camera (211) installed at the bottom of the drone (200) may have a coating layer formed by applying a coating solution to the camera lens, which is formed by mixing a first solution prepared by reacting titanium ethoxide or titanium butoxide with ethyl acetoacetate or diethanolamine, a second solution prepared by reacting polydimethylsiloxane (PDMS) and parylene, and a third solution prepared by reacting a silane coupling agent with isopropyl alcohol, water, and p-toluene sulfonic acid, and reacting them at room temperature for 12 hours.

[0048] When the above-mentioned coating solution is applied to the lens of the camera (211) and heat-treated, a protective film with a high refractive index and high hardness can be obtained. This is due to the properties of the first solution and the second solution. The method of applying the above coating solution may utilize a spray coating method, and the curing conditions may be such that a coating film with a high refractive index and high hardness is obtained by first curing at 40°C for 45 minutes in a drying oven, followed by second curing at 160°C for 1 hour.

[0049] Polydimethylsiloxane (PDMS) in the composition of the lens coating layer of the camera (211) can help secure precise image by increasing the transmittance of visible light, and the parylene is a material with strong corrosion and chemical resistance, which can prevent corrosion of the lens of the camera unit (410) and help extend its lifespan. In the present invention, the RF receiver (212) identifies and distinguishes the RF included in the oscillation signal corresponding to different frequency bands transmitted by the RF transmitters (R1, R2, R3), and the drone controller (210) performs the function of recognizing the distinguishing information.

[0050] Referring to FIG. 4, the calculator (215) is intended to calculate how far from the drone (200) is from the vehicle (100, 102, 104) to make the position information accurate so that the drawing module (330) can draw accurately, by inserting coordinate values, that is, position information, into the image of the unit space size that the camera (211) mounted on the drone (200) can capture at once, through information provided by the vehicle (100, 102, 104) equipped with RF transmitters (R1, R2, R3) and GNSS receivers (G1, G2, G3) placed at least three locations around the perimeter of the shooting zone, and the drone (200) hovering at a certain upper height within the shooting zone.

[0051] At this time, the position of the drone (200) is known through the coordinate system (214), and the ground point directly below the drone (200) in the shooting zone is known through the altimeter (213). Since the distance to each RF transmitter (R1, R2, R3) can be known through the speed of the RF and the time received by the RF receiver (212), the distance from the ground point directly below the drone (200) in the shooting zone to each RF transmitter (R1, R2, R3) forms a right triangle, so it can be calculated by the Pythagorean theorem.

[0052] In this way, since the coordinate values ​​obtained by each GNSS receiver (G1, G2, G3) based on the ground point directly below the drone (200) in the shooting zone and the distance information from the reference point to the RF transmitter (R1, R2, R3) are known, the position information of the RF transmitter (R1, R2, R3) can be displayed on the video image of the shooting zone that was captured, and through this, when drawing the video image of the shooting zone, accurate drawing is possible by drawing based on each position information.

[0053] In the present invention, the drone memory (217) performs the function of recording a captured image with synthesized location information in the form of a storage object and then transmitting it to a drawing module (330) according to a control signal from a drone controller (210). The drone memory (217) may be an external disk (a recording medium that is detachable via USB, or a recording medium in the form of an SD card) having a temporary storage function like RAM, and may also be a general disk or a detachable hard drive. Referring to FIG. 5, in the present invention, the drone (200) may be structured to have a buoyancy lifting function so that it can fly for a long time, for example, at least 6 hours. For example, the drone (200) includes a disc-shaped drone body, an engine chamber is fixed to the lower surface of the drone body, and a camera (211) may be mounted at the center of the bottom surface of the engine chamber.

[0054] In the present invention, the management server (300) is installed in a remote location and includes a server controller (310) which is a main control unit. The server controller (310) may be configured to include a server communication unit (320) that receives a video image necessary for drawing by wirelessly communicating with a drone (200), a drawing module (330) that draws using the video image received through the server communication unit (320), and a server memory (340) that is connected to the server controller (310) and stores transmitted and received information.

[0056] FIG. 5 is a drawing showing the internal view of an installation support unit according to an embodiment of the present invention.

[0057] As described above, the present invention further comprises an installation support unit (600) mounted on the upper part of a vehicle (100), an installation coupling plate (500) coupled to the upper part of the installation support unit (600), a plurality of radiation support members (530) coupled to the upper part of the installation coupling plate (500), a heat radiation plate (520) coupled to the upper part of the radiation support members (530), a heat transfer support member (400) coupled to the upper part of the heat radiation plate (520), and a heat transfer plate (510) coupled to the upper part of the heat transfer support member (400), wherein a vehicle stereo camera (120) is coupled to the upper part thereof.

[0058] When the heat transfer plate (510) is arranged transversely on the upper part of the heat transfer support (400) and the heat radiating plate (520) is arranged transversely on the lower part of the heat transfer support (400), the heat generated from the vehicle stereo camera (120) is released to the outside through the heat transfer plate (510), the heat transfer support (400), and the heat radiating plate (520).

[0059] The above plurality of radiation supports (530) are arranged vertically between the heat radiating plate (520) and the installation coupling plate (500), and a space is formed between the heat radiating plate (520) and the installation coupling plate (500) by the plurality of radiation supports (530) so that heat can be smoothly emitted to the outside.

[0060] The above-mentioned installation support unit (600) is positioned at the bottom of the vehicle stereo camera (120) and comprises an installation support case (610) with a hollow interior, an up-and-down adjustment part (620), a pair of left-right fixing parts (630), and a pair of fixing reinforcement parts (640).

[0061] The above-described vertical adjustment part (620) is coupled to the center of the inner lower surface of the installation support case (610) and is movable vertically. A pair of supplementary fastening parts (621) having a concave groove are coupled to the upper part of the vertical adjustment part (620).

[0062] The above pair of left and right fixing parts (630) are coupled to both sides of the inner lower surface of the installation support case (610) and are arranged to face each other with the upper and lower adjustment part (620) in between. The pair of left and right fixing parts (630) fix both sides of the installation coupling plate (500).

[0063] The above left and right fixing part (630) includes an up-and-down operating part (631) that is coupled to the inner lower surface of the installation support case (610) so as to be movable up and down, a fixed support part (632) that is spaced apart from the up-and-down operating part (631) and fixedly coupled to the inner lower surface of the installation support case (610), a lower fastening plate (633) that is coupled horizontally to the upper end of the fixed support part (632) and has a plurality of lower fastening teeth (634), and an upper fastening plate (635) that has one end rotatably coupled to the upper end of the up-and-down operating part (631), and a central part rotatably coupled to the upper end of the lower fastening plate (633) and has a plurality of upper fastening teeth (636).

[0064] When the upper and lower operating part (631) moves upward, one end of the upper fastening plate (635) moves upward together, and the other end of the upper fastening plate (635) moves downward, so that the upper fastening tooth (636) and the lower fastening tooth (634) interlock with each other. An installation coupling plate (500) is coupled between the interlocked upper fastening tooth (636) and the lower fastening tooth (634), thereby firmly fixing the vehicle stereo camera (120).

[0065] Conversely, when the upper and lower operating part (631) moves downward, one end of the upper fastening plate (635) moves downward together, and the other end of the upper fastening plate (635) moves upward, thereby releasing the engagement between the upper fastening tooth (636) and the lower fastening tooth (634).

[0066] A left and right fastening plate (637) is coupled to the other end of the upper fastening plate (635) so as to be movable left and right, and a left and right elastic member (638) is coupled between the upper fastening plate (635) and the left and right fastening plate (637) to provide elastic force to the left and right fastening plate (637).

[0067] The above left and right fastening plates (637) support the side portions of the radiation support (530) to prevent the radiation support (530) from shaking, thereby preventing the vehicle stereo camera (120) from shaking. This elastic structure absorbs minute differences in the dimensions of the radiation support (530) and, at the same time, prevents vibrations generated during operation from being transmitted to the vehicle stereo camera (120), thereby enabling precise operation.

[0068] The above pair of fixed supplementary members (640) are provided at the bottom of the installation coupling plate (500) and are linked with the vertical adjustment member (620) to perform temporary fixing and position alignment in the pre-fastening stage of the vehicle stereo camera (120).

[0069] Specifically, the fixed reinforcement member (640) comprises a fixed reinforcement case (641) coupled to the lower part of the installation coupling plate (500), a fixed reinforcement elastic member (642) coupled to the inner side of the fixed reinforcement case (641), a fixed reinforcement rod (643) having one end coupled to the fixed reinforcement elastic member (642) and capable of moving left and right inside the fixed reinforcement case (641), a circular fixed fastening part (644) coupled to the other end of the fixed reinforcement rod (643) and capable of being housed inside the fixed reinforcement case (641) or exposed to the outside, and a temporary fixing part (645) mounted to be movable left and right on the inner lower surface of the fixed reinforcement case (641), having one end protruding to the outside of the fixed reinforcement case (641) and the other end contacting the lower surface of the fixed reinforcement rod (643).

[0070] One side of the temporary fixing part (645) is formed in a rod shape and protrudes outside the fixing reinforcement case (641), and the other side of the temporary fixing part (645) is formed in a semicircle shape and can contact and support the lower surface of the fixing reinforcement rod (643). The vertical width of one side of the temporary fixing part (645) is relatively smaller than the vertical width of the other side of the temporary fixing part (645).

[0071] The diameter of the fixed fastening part (644) is approximately the same as or relatively slightly smaller than the inner upper and lower width of the fixed supplementary case (641), and when the other side of the temporary fixing part (645) contacts the lower surface of the fixed supplementary rod (643), the fixed supplementary rod (643) is vertically displaced upward and compressed and fixed, so that left and right movement is temporarily stopped and fixed.

[0072] Normally, the above temporary fixing part (645) moves toward the fixed fastening part (644) to contact and support the lower surface of the fixed support rod (643), and the fixed fastening part (644) is maintained in a state of being housed inside the fixed support case (641).

[0073] When the upper and lower adjustment part (620) moves upward and comes into contact with the lower surface of the installation coupling plate (500), the temporary fixing part (645) moves in the opposite direction of the fixing fastening part (644) and is separated from the lower surface of the fixing reinforcement rod (643), and the fixing fastening part (644) is ejected to the outside of the fixing reinforcement case (641) by the elastic force of the fixing reinforcement elastic member (642).

[0074] The externally protruding fixed fastening part (644) is inserted into and fixed to the supplementary fastening part (621) having a concave groove, and the vehicle stereo camera (120) is fixed to the upper part of the vertical adjustment part (620), and the vertical adjustment part (620) moves downward so that the entire vehicle stereo camera (120) moves downward. At this time, the vertical adjustment part (620) can adjust the height of the vehicle stereo camera (120) and simultaneously distribute the load.

[0075] With the vehicle stereo camera (120) moved downward, a pair of left and right fixing parts (630) are operated to firmly fix both sides of the installation coupling plate (500), and the vehicle stereo camera (120) is also firmly fixed.

[0076] In this way, the present invention supports the vehicle stereo camera (120) at multiple points, such as the supplementary fastening part (621) of the upper and lower adjustment part (620), the fixed fastening part (644) of the fixed supplementary part (640), the upper fastening plate (635) and the lower fastening plate (633), and the left and right fastening plates (637), thereby allowing the vehicle stereo camera (120) to be fixed without shaking. Furthermore, since engagement and disengagement are possible with simple movements, maintenance and replacement work are easy, and the alignment state can be maintained consistently even with external vibrations.

[0078] FIG. 6 is a diagram showing a state in which a heat transfer support member according to an embodiment of the present invention is mounted between a heat transfer plate and a heat radiating plate, FIG. 7 is a diagram schematically showing a heat transfer support member according to an embodiment of the present invention, and FIG. 8 is a diagram schematically showing a first heat transfer member and a second heat transfer member of a heat transfer support member according to an embodiment of the present invention.

[0079] The heat transfer support member (400) according to the present invention is positioned between the heat transfer plate (510) and the heat radiating plate (520) and can elastically press the heat transfer plate (510) in the direction of the vehicle stereo camera (120) and can perform a cooling function for the vehicle stereo camera (120).

[0080] The above heat transfer support member (400) comprises a base member (410), an elastic support member (420) disposed inside the base member (410) such that one side contacts the lower base (412) of the base member (410) and the other side contacts the upper base (411) of the base member (410) to elastically support the lower base (412) and the upper base (411), an elastic guide member (430) disposed spaced apart from the elastic support member (420) such that one side is fixed to the lower base (412) and the other side is fixed to the upper base (411), and the one side is inserted into the other side and elastically supported in the inserted state, and a first heat transfer member (440) disposed in the center of the base member (410) such that the upper side contacts the heat transfer plate (510) and the other side is exposed to the outside of the heat radiation plate (520) to transfer heat to the atmosphere, and the It includes a plurality of second heat transfer sections (450) spaced apart from the first heat transfer section (440), with the upper side in contact with the heat transfer plate (510) and the other side exposed to the outside of the heat radiation plate (520) to transfer heat to the atmosphere.

[0081] The base portion (410) is composed of a lower base (412) and an upper base (411), and an elastic support portion (420) and an elastic guide portion (430) are disposed in the internal space between the lower base (412) and the upper base (411).

[0082] The upper base (411) is located on the side in contact with the heat transfer plate (510), and the lower base (412) is located on the upper side of the heat radiating plate (520), and the gap between the lower base (412) and the upper base (411) is adjusted by the elastic force of the elastic support part (420) and the elastic guide part (430).

[0083] The above elastic support member (420) includes a first support base (421) fixed to the lower surface of the upper base (411), an elastic member (422) with its upper portion fixed to the first support base (421), and a second support base (423) fixed to the upper surface of the lower base (412) and connected to the lower portion of the elastic member (422).

[0084] The above elastic member (422) may be composed of a coil spring and is compressed and stretched between the first support base (421) and the second support base (423) to provide elastic force between the lower base (412) and the upper base (411). The elastic support member (420) serves to maintain a constant elastic force so that the heat transfer plate (510) can be pressed against the vehicle stereo camera (120) with uniform pressure.

[0085] The elastic guide part (430) comprises a guide body (431) fixed to the lower surface of the upper base (411), a lifting guide (432) whose upper end is inserted into a body groove formed in the lower part of the guide body (431) and whose lower end is fixed to the upper surface of the lower base (412), and a guide elastic part (433) disposed inside the body groove to elastically support the upper part of the lifting guide (432).

[0086] The above elastic guide part (430) is spaced apart from the elastic support part (420) and serves to guide the lifting movement of the base part (410). The lifting guide (432) is inserted into the body groove of the guide body (431) and can slide in the up and down direction. It is elastically supported by the guide elastic part (433), enabling stable linear movement without shaking during the lifting movement of the base part (410).

[0087] Accordingly, the elastic guide part (430) provides a uniform elastic force to the heat transfer plate (510) together with the elastic support part (420), while accurately maintaining the lifting direction of the base part (410).

[0088] The first heat transfer section (440) may be formed with a larger contact area with the heat transfer plate (510) than each of the second heat transfer sections (450). The first heat transfer section (440) is positioned in the center of the base section (410) to intensively absorb heat generated in the center of the heat transfer plate (510), and a plurality of second heat transfer sections (450) are spaced apart from the first heat transfer section (440) to disperse and absorb heat generated in the periphery of the heat transfer plate (510). Through this, an even cooling effect can be achieved across the entire heat transfer plate (510).

[0089] The elastic support member (420) and the elastic guide member (430) can elastically press the heat transfer plate (510) in the direction of the vehicle stereo camera (120). The elastic member (422) of the elastic support member (420) and the guide elastic member (433) of the elastic guide member (430) cooperate to press the base member (410) upward, thereby ensuring that the heat transfer plate (510) adheres uniformly and stably to the vehicle stereo camera (120). In this process, the elastic guide member (430) guides the vertical movement of the base member (410) so that the heat transfer plate (510) can make surface contact with the vehicle stereo camera (120) without eccentricity.

[0090] The first heat transfer member (440) penetrates the lower first hole (412a) formed in the lower base (412) and is coupled to the upper first hole (411a) formed in the upper base (411) to make surface contact with the heat transfer plate (510), and the plurality of second heat transfer members (450) penetrate each lower second hole (412b) formed in the lower base (412) and are coupled to each upper second hole (411b) formed in the upper base (411) to make surface contact with the heat transfer plate (510).

[0091] The first heat transfer section (440) may be formed in a solid cylindrical shape, and the second heat transfer section (450) may be formed in a solid plate shape. The first heat transfer section (440) and the second heat transfer section (450) may be formed from a metal material with high thermal conductivity, such as copper or aluminum, and exhibit efficient cooling performance by combining a conduction method through surface contact with the heat transfer plate (510) and a convection method outside the heat radiating plate (520).

[0092] A cylindrical first heat transfer section (440) concentrates and absorbs heat from the heat transfer plate (510) with a wide contact area at the center of the base section (410), and a plurality of plate-shaped second heat transfer sections (450) are spaced apart around the first heat transfer section (440) to disperse and absorb heat from the heat transfer plate (510), thereby maximizing cooling efficiency.

[0093] Effective cooling action can be performed without a separate cooling means by means of the first heat transfer unit (440) and the second heat transfer unit (450) provided in the heat transfer support unit (400). Specifically, the upper side of the first heat transfer unit (440) and the second heat transfer unit (450) is in surface contact with the heat transfer plate (510), so that heat generated from the heat transfer plate (510) is conducted to the first heat transfer unit (440) and the second heat transfer unit (450), and the other side of the first heat transfer unit (440) and the second heat transfer unit (450) is exposed to the outside of the heat radiation plate (520) and comes into contact with the atmosphere, thereby releasing heat to the outside by convection.

[0094] At this time, the cylindrical first heat transfer section (440) intensively absorbs heat from the center of the heat transfer plate (510) at the center of the base section (410), and the plate-shaped multiple second heat transfer sections (450) are spaced apart around the first heat transfer section (440) to disperse and absorb heat from the periphery of the heat transfer plate (510), thereby achieving a uniform cooling effect over the entire heat transfer plate (510).

[0095] In this way, the present invention can prevent malfunction or damage to parts caused by overheating during operation of a vehicle stereo camera (120) by means of a cooling method combining conduction and convection, and can improve the durability and operational stability of the device.

[0096] It will be obvious to those skilled in the art that the invention described above is not limited by the aforementioned embodiments and attached drawings, and that various substitutions, modifications, and changes can be made within the scope of the technical concept of the invention. Explanation of the symbols

[0098] 100 : Vehicle 110 : Vehicle controller 120 : Automotive stereo camera 200 : Drone 210 : Drone Controller 300 : Management Server 400 : Heat transfer support part 410 : Base part 411 : Upper base 411a : Upper first hole 411b : Upper 2nd hole 412 : Lower base 412a : Lower 1st hole 412b : Lower 2nd hole 420: Elastic support part 421: First support base 422: Elastic member 423: Second support base 430 : Elastic guide part 431 : Guide body 432 : Lifting guide 433 : Guide elastic part 440: 1st heat transfer section 450: 2nd heat transfer section 500 : Installation coupling plate 510 : Heat transfer plate 520 : Heat radiator plate 530 : Radiation support 600 : Installation support unit 610 : Installation support case 620: Vertical adjustment part 621: Supplementary fastening part 630: Left / Right Fixing Part 631: Up / Down Operating Part 632 : Fixed support part 633 : Lower fastening plate 634 : Lower fastening part 635 : Upper fastening plate 636 : Upper fastening part 637 : Left and right fastening plates 638 : Left / Right Elastic Member 640 : Fixed Enhancement Member 641 : Fixed reinforcement case 642 : Fixed reinforcement elastic member 643 : Fixed reinforcement rod 644 : Fixed fastening part 645 : Temporary fixed

Claims

Claim 1 At least three mobile vehicles equipped with RF transmitters and GNSS receivers to perform coordinate reference point functions; a drone that identifies each RF transmitter through RF received from the RF transmitters and generates a captured image coded by each RF transmitter according to the shooting zone using coordinate information received from the GNSS receiver; and a management server equipped with a drawing module that receives the captured image generated by the drone and performs drawing; wherein the system further comprises: an installation support unit mounted on the upper part of the vehicle; an installation coupling plate coupled to the upper part of the installation support unit; a plurality of radiation supports coupled to the upper part of the installation coupling plate; a heat radiation plate coupled to the upper part of the radiation supports; a heat transfer support member coupled to the upper part of the heat radiation plate; a heat transfer plate coupled to the upper part of the heat transfer support member; and a vehicle stereo camera coupled to the upper part of the heat transfer plate; wherein the heat transfer support member comprises a base part that contacts the lower part of the heat transfer plate; An elastic support member disposed inside the base portion, with one side in contact with the lower base of the base portion and the other side in contact with the upper base of the base portion to elastically support the lower base and the upper base; an elastic guide member disposed spaced apart from the elastic support member, with one side fixed to the lower base and the other side fixed to the upper base, and one side inserted into the other side and elastically supported in the inserted state; a first heat transfer member disposed in the center of the base portion, with the upper side in contact with the heat transfer plate and the other side exposed to the outside of the heat radiation plate to transfer heat to the atmosphere; and a plurality of second heat transfer members disposed spaced apart from the first heat transfer member, with the upper side in contact with the heat transfer plate and the other side exposed to the outside of the heat radiation plate to transfer heat to the atmosphere; wherein the elastic support member comprises: a first support base fixed to the lower surface of the upper base; an elastic member with its upper end fixed to the first support base; and a second support base fixed to the upper surface of the lower base and to which the lower end of the elastic member is connected; and wherein the elastic guide member comprises a guide body fixed to the lower surface of the upper base; A lifting guide having its upper end inserted into a body groove formed in the lower part of a guide body and its lower end fixed to the upper surface of a lower base; and a guide elastic member disposed inside the body groove and elastically supporting the upper part of the lifting guide;It includes, wherein the first heat transfer member is formed with a larger contact area with the heat transfer plate than each second heat transfer member, and the elastic support member and elastic guide member elastically press the heat transfer plate in the direction of the vehicle stereo camera, and the first heat transfer member penetrates a lower first hole formed in the lower base and is coupled to an upper first hole formed in the upper base to make surface contact with the heat transfer plate, and the plurality of second heat transfer members penetrate each lower second hole formed in the lower base and are coupled to each upper second hole formed in the upper base to make surface contact with the heat transfer plate, the first heat transfer member is formed in a solid cylindrical shape, and the second heat transfer member is formed in a solid plate shape, and the installation support unit comprises: an installation support case that is placed at the bottom of the vehicle stereo camera and has a hollow interior; and an up-and-down adjustment member that is coupled to the center of the inner lower surface of the installation support case and is movable up and down. A spatial image drawing system that improves the precision of drawing using a drone and captured images, comprising: a pair of left and right fixing parts coupled to both sides of the inner lower surface of an installation support case and arranged to face each other with an up-and-down adjustment part in between; and a pair of fixing supplementary parts provided at the bottom of an installation coupling plate; wherein the left and right fixing parts include: an up-and-down operating part coupled to the inner lower surface of the installation support case so as to be movable up and down; a fixing support part spaced apart from the up-and-down operating part and fixedly coupled to the inner lower surface of the installation support case; a lower fastening plate coupled transversely to the top of the fixing support part and having a plurality of lower fastening teeth; and an upper fastening plate having one end rotatably coupled to the top of the up-and-down operating part, a central part rotatably coupled to the top of the lower fastening plate and having a plurality of upper fastening teeth.

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