A digital map production system that compares and analyzes GPS information and real-time information

Abstract

The present invention relates to a digital map production system that compares and analyzes GPS information and real-time information. More specifically, it relates to a digital map production system that compares and analyzes GPS information and real-time information to improve precision by stably securing survey information by reference point to improve accuracy by comparing and analyzing a DB storing information surveyed based on GPS and photographing a survey area, and to correct errors in the digital map by mutually comparing and analyzing data by ground reference point with real-time survey data.

Description

Technology Field

[0001] The present invention relates to a digital map production system that compares and analyzes GPS information and real-time information in the field of surveying technology. More specifically, it relates to a digital map production system that compares and analyzes GPS information and real-time information to improve precision by photographing a survey area and comparing and analyzing a DB storing GPS-based surveying information, thereby stably securing surveying information by reference point, and to correct errors in the digital map by mutually comparing and analyzing data by ground reference point with real-time surveying data. Background Technology

[0003] As is well known, a digital map refers to a map that represents geographical or topographical content using numerical values. Examples include nautical charts that show water depth numerically and topographic survey maps that show the relief of the terrain. In other words, a digital map applies numerical information to a drawn image while expressing the geographical or topographical features of a specific point.

[0004] Therefore, in order for users to easily acquire geographical and topographical information while viewing the map, digitized geographic information for a specific point must be accurately applied to the drawn image, and the drawn image must also be accurately depicted in accordance with the geographic information.

[0005] These digital maps are produced from images collected through aerial and ground photography, and these collected images are completed into a complete, unified image through the interconnection of neighboring images to be produced as digital maps.

[0006] However, for the interconnection of these collected images, a standard for accurate connection between them is required, and to establish that standard accurately, the capture of precise aerial imagery based on GPS coordinates must be performed beforehand.

[0007] In other words, aerial photography must be accurately performed for each GPS coordinate to collect accurate aerial imagery for each of the aforementioned GPS coordinates.

[0008] However, accurate digital maps can only be produced by providing precise coordinate values ​​for the shooting location; consequently, if the coordinate values ​​of the ground control points used for this purpose change due to terrain variations or development environments, it was not possible to produce accurate digital maps by reflecting these changes.

[0009] Accordingly, ground reference points are being improved to a fixed method to determine their location; however, since most are exposed, they frequently suffer damage from wild animals, heavy rain, or heavy snow, which has the disadvantage of shortening their lifespan.

[0010] When damaged in this way, maintenance such as replacement and repair must be performed by locating the position every time, which has the limitation of causing significant waste of manpower and time. Prior art literature

[0012] Republic of Korea Patent Registration No. 10-2748002 (December 24, 2024) 'GPS-based digital map production system' The problem to be solved

[0013] The present invention was created to address the various problems of the prior art described above. Its main purpose is to provide a digital map production system that compares and analyzes improved GPS information and real-time information to improve precision by photographing a survey area and comparing and analyzing a database storing GPS-based survey information, thereby stably securing survey information by reference point, and correcting errors in the digital map by mutually comparing and analyzing data by ground reference point with real-time survey data. means of solving the problem

[0015] The present invention, as a means to achieve the above-mentioned purpose, comprises: a ground reference point (1) that provides absolute coordinate information on the ground for a survey area during aerial photography and ground photography; an aircraft (2) used for aerial photography that communicates with the ground reference point (1) to receive absolute coordinate information and receives GPS information from a satellite; a ground camera (3) used for ground photography that communicates with the ground reference point (1) to receive absolute coordinate information and receives GPS information from a satellite; an aerial photography information DB (4) that stores real-time aerial photography information captured by the aircraft (2); a ground photography information DB (5) that stores real-time aerial photography information captured by the ground camera (3); a mapping device (6) that extracts shooting information from the aerial photography information DB (4) and the ground photography information DB (5), respectively, edits or renders each shooting information to maintain the same format as the previously captured information; a matching device (7) that matches the mapped information by ground reference point and GPS coordinate; a real-time shooting information DB (8) that stores the matched information; and a device in which previously captured information is stored. A digital map production system for comparing and analyzing GPS information and real-time information, comprising: a comparator (10) that extracts each shooting information from a pre-shot information DB (9), a real-time shooting information DB (8) and the pre-shot information DB (9), compares them with each other, and updates the parts that differ from the pre-shot information as real-time shooting information; and a digital map DB (11) that converts the updated information into a digital map and stores it as digital map information;

[0016] The above mapping unit (6), matching unit (7), and comparator (8) are mounted in the enclosure (100) in the form of processing modules; the previously captured information DB (9), real-time captured information DB (10), and numeric map DB (11) are mounted in the enclosure (100) in the form of memory;

[0017] The above-mentioned enclosure (100) is formed in the shape of a rectangular box with an open front, and the open front is configured to be openable and closable by an enclosure door (110). A main board (120) is fixed to the rear wall inside the enclosure (100), and a processing module and memory are mounted on the main board (120). A space is formed on the rear side of the main board (120), and the space is partitioned by a copper plate (130) to divide it into a cooling chamber (C1) and an indirect cooling chamber (C2). The upper and lower ends of the space are sealed by a sealing member (C3), and the cooling chamber (C1) is connected to a cooling water supply tank so that cooling water flows through it. A filtering inlet (140) is formed on the lower side of both sides of the enclosure (100) to introduce filtered outside air, and an exhaust port (150) is formed on the upper surface of the enclosure (100). The exhaust port (150) A numeric map production system for comparing and analyzing GPS information and real-time information is provided, characterized by having an exhaust fan (160) provided at the top. Effects of the invention

[0019] According to the present invention, by photographing a survey area and comparing and analyzing a DB storing surveyed information based on GPS, survey information for each reference point is stably secured to improve precision, and an improved effect can be obtained to correct errors in a digital map by mutually comparing and analyzing data for each ground reference point with real-time survey data. Brief explanation of the drawing

[0021] FIG. 1 is an exemplary block diagram of a system according to the present invention. FIGS. 2 and FIGS. 3 are exemplary diagrams of ground reference points constituting a system according to the present invention. FIG. 4 is an example diagram of a ground camera constituting a system according to the present invention. FIG. 5 is an exemplary diagram of an enclosure constituting a system according to the present invention. FIG. 6 is an exemplary diagram of a drop-type fire extinguishing unit constituting a system according to the present invention. Specific details for implementing the invention

[0022] Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the attached drawings.

[0023] Prior to describing the present invention, the following specific structural or functional descriptions are provided merely for the purpose of illustrating embodiments according to the concept of the present invention. Embodiments according to the concept of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described herein.

[0024] Before providing a detailed explanation, the present invention is an improved version utilizing the configuration of Registered Patent No. 10-2748002 as is. Therefore, a significant portion of the following description will be cited verbatim from the content of the aforementioned registered patent.

[0025] As illustrated in FIG. 1, the system according to the present invention comprises a ground reference point (1) that provides absolute coordinate information on the ground for a survey area during aerial photography and ground photography; an aircraft (2) used for aerial photography that communicates with the ground reference point (1) to receive absolute coordinate information and receives GPS information from a satellite; a ground camera (3) used for ground photography that communicates in real-time with the ground reference point (1) to receive absolute coordinate information and receives GPS information from a satellite; an aerial photography information DB (4) that stores real-time aerial photography information captured by the aircraft (2); a ground photography information DB (5) that stores real-time aerial photography information captured by the ground camera (3); a mapping unit (6) that extracts shooting information from the aerial photography information DB (4) and the ground photography information DB (5), respectively, edits or renders each shooting information to maintain the same format as previously captured information; a matching unit (7) that matches the mapped information by ground reference point and GPS coordinates; a real-time shooting information DB (8) that stores the matched information; and previously captured It includes a pre-shot information DB (9) in which information is stored, a real-time shooting information DB (8), a comparator (10) that extracts each shooting information from the pre-shot information DB (9), compares them with each other, and updates the parts that differ from the pre-shot information as real-time shooting information, and a numeric map DB (11) that converts the updated information into a numeric map and stores it as numeric map information.

[0026] At this time, the ground reference point (1) includes a pillar (110) fixed at a point serving as a reference point of a survey area as shown in the examples of FIGS. 2 and 3, an antenna (120) installed on the top of the pillar (110), a turntable (130) rotatably installed on the top of the pillar (110), a reflector (140) fixed to the turntable (130) and installed to increase the reception sensitivity of radio waves directed toward the antenna (120), a driving motor (150) for rotating the turntable (130), and a controller (160) installed inside the pillar (110) to control the driving of the driving motor (150).

[0027] In this way, the present invention is configured to prevent damage caused by animals and to resolve the problem of contamination or damage caused by snow and rain by using a pillar (110) to maintain the ground reference point (1) at a height above a certain level from the ground, unlike conventional methods, and to prevent functional failure due to power shortage by using commercial power.

[0028] In particular, the above column (110) is in the form of a hollow pipe made of plastic, and a conical plug (112) is attached to the top to prevent the intrusion of rainwater or snow.

[0029] In this case, the conical plug (112) has a flap (114) formed around its lower circumference to prevent the turntable (130) from separating and detaching from the column (110).

[0030] And, the turntable (130) has a hole in the center so that it can be fitted into the column (110), and the circumference of the hole is extended downward for a certain length in the form of a flange (132).

[0031] In addition, a stopper (116) is protruded from the column (110) so that the turntable (130) can be caught on it.

[0032] In addition, a controller (160) is mounted inside the column (110), a gear is formed on the flange (132) of the turntable (130), a drive motor (150) is fixed to the column (110) via a motor base (152), and the drive motor (150) is controlled by the controller (160) to adjust the position of the reflector (140) by taking into account the sensitivity received by the antenna (120).

[0033] In addition, a drive gear (154) is fixed to the motor shaft of the drive motor (150), and the drive gear (154) is meshed with the gear of the flange (132).

[0034] On the other hand, as shown in FIG. 4, the ground camera (3) is configured in the form of a two-wheeled vehicle to make it easy to access even narrow spaces.

[0035] To this end, the ground camera (3) comprises a main body (310), a wheel (320) mounted on the main body (310), a driving source (330) for driving the wheel (320), a controller (340) installed on the main body (310) and having a GPS module mounted thereon, an angle-adjustable ground camera (350) mounted on the main body (310), and a communication antenna (360) installed on the handle of the main body (310) and controlled by the controller (340).

[0036] Thus, when shooting on the ground, after moving toward the ground reference point (1), absolute coordinates are received from the ground reference point (1), and then shooting is performed while receiving and recording the current coordinates via GPS communication whenever the current coordinates and a designated point are passed.

[0037] And, the captured information is transmitted in real time to the ground shooting information DB (5) and stored.

[0038] Along with this, aerial photography information captured by the aircraft (2) is also naturally transmitted to and stored in the aerial photography information DB (4), and the subsequent processing process is as described above.

[0039] On the other hand, the mapping unit (6), matching unit (7), and comparator (8) of Fig. 1 are mounted in the housing (100) as processing modules; and the previously captured information DB (9), real-time captured information DB (10), and numeric map DB (11) are mounted in the housing (100) as memory.

[0040] In this case, the housing (100) is formed in the shape of a square box with an open front, as shown in the example of FIG. 5, and the open front is configured to be openable and closable by a housing door (110).

[0041] And, a main board (120) is fixed to the rear wall inside the housing (100), and a plurality of processing modules and memory as described above are mounted on the main board (120).

[0042] In particular, a space is formed at the rear side of the main board (120), and the space is partitioned by a copper plate (130) to be divided into a cooling chamber (C1) and an indirect cooling chamber (C2), and the upper and lower ends of the space are sealed by a sealing member (C3).

[0043] In addition, the above cooling chamber (C1) is connected to a cooling water supply tank so that cooling water flows through it.

[0044] Therefore, the indirect cooling chamber (C2) is indirectly cooled by the copper plate (130) without coming into direct contact with the cooling water, which allows for safe and efficient cooling without damaging the main board (120).

[0045] At this time, the supply of cooling water is carried out periodically.

[0046] This is to ensure that periodic cooling is automatically performed by periodically supplying cooling water, as heat is continuously generated due to the nature of the processing module and memory operating 24 hours a day.

[0047] Additionally, a filtering inlet (140) for introducing filtered outside air is formed on the lower sides of the housing (100), and an exhaust port (150) is formed on the upper surface of the housing (100). An exhaust fan (160) is provided on the upper part of the exhaust port (150), and the exhaust fan (160) is configured to periodically operate to discharge internal air and dust to the outside.

[0048] Above all, in the present invention, the housing (100) is configured to quickly suppress a fire caused by rapid heat generation, short circuit, short circuit, etc., thereby preventing it from spreading into a large fire.

[0049] To this end, a drop-type fire extinguishing unit (200) is further installed on the upper part of the above-mentioned housing (100).

[0050] The above drop-type fire extinguishing unit (200) includes, as shown in the example of FIG. 6, a unit box (210) with an open bottom and an empty interior, a plurality of binding rings (220) fixed to the inner ceiling surface of the unit box (210), a fire extinguishing cloth (230) inserted into the unit box (210) with one end fixed to the binding rings (220) and the other end folded multiple times, a balloon (240) inserted into the open bottom of the unit box (210) to support the bottom of the fire extinguishing cloth (230), and a square frame-type locker (250) fixed to the open bottom of the unit box (210) so that the balloon (240) cannot be removed.

[0051] At this time, the square frame-shaped locker (250) has a hollow section (252) because it is a square box shape with an empty interior.

[0052] This is important because heat or flames must rise through this hollow section (252) due to the fire and burst the balloon (240).

[0053] Thus, when the balloon (240) bursts due to high heat from the fire, the balloon (240) falls downward through the hollow part (252), and the fire extinguisher (230) that was supporting it also loses its supporting force, so it falls downward through the hollow part (252) due to the weight of the fire extinguisher (230), completely sealing and confining it by surrounding the hull (100).

[0054] Accordingly, the vessel (100) is soon suppressed because it is not supplied with oxygen.

[0055] At this time, the unit box (210) must have strong durability, corrosion resistance, and erosion resistance, so it is manufactured by being molded into the following box mold.

[0056] That is, the above box molding product is composed by mixing 10 parts by weight of bismuth carbonate, 5.5 parts by weight of polyvinylpinolidone copolymer, 5.5 parts by weight of disodium EDTA, 6.5 parts by weight of methylsulfonylmethane, 5.5 parts by weight of MEHEC (methylethylhydroxyethylcellulose), and 8.5 parts by weight of n-BMA (n-butyl methacrylate) with respect to 100 parts by weight of polymethylpentene.

[0057] In this case, bismuth carbonate is a material corresponding to CAS number 5892-10-4, which reduces the moisture content of the material, thereby reducing pores and increasing water resistance, moisture resistance, and corrosion resistance.

[0058] In addition, the polyvinylpinolidone copolymer enhances friction resistance, wear resistance, erosion resistance, durability, heat resistance, corrosion resistance, and chemical resistance by inhibiting the coarse growth of crystals contained in the composition and reducing surface roughness.

[0059] In addition, disodium EDTA is added to prevent rancidity caused by oxidation of the surface.

[0060] In addition, methylsulfonylmethane fills the pores between organic and inorganic components, thereby achieving pore densification and increasing surface strength, which enhances water resistance and corrosion resistance.

[0061] In addition, MEHEC (methylethylhydroxyethylcellulose) is a cellulose derivative composed of anhydrous glucose monomer chains that enhances surface activity and chemical resistance.

[0062] In addition, n-BMA (n-Butyl methacrylate), also known as 2-propenoic acid, is an organic synthetic material that increases elongation and flexural strength, thereby preventing cracks and increasing durability. Explanation of the symbols

[0064] 1: Ground control point 2: Aircraft 3: Ground Camera 4: Aerial Photography Information DB 5: Ground Photography Information DB 6: Mapping device 7: Matching Unit 8: Real-time Shooting Information DB 9: Previously Captured Information DB 10: Comparator 11: Digital Map DB

Claims

Claim 1 delete Claim 2 A ground reference point (1) that provides absolute coordinate information on the ground for a survey area during aerial photography and ground photography; an aircraft (2) that is used for aerial photography and communicates with the ground reference point (1) to receive absolute coordinate information and receives GPS information from a satellite; a ground camera (3) that is used for ground photography and communicates with the ground reference point (1) to receive absolute coordinate information and receives GPS information from a satellite; an aerial photography information DB (4) that stores real-time aerial photography information captured by the aircraft (2); a ground photography information DB (5) that stores real-time aerial photography information captured by the ground camera (3); a mapping device (6) that extracts shooting information from the aerial photography information DB (4) and the ground photography information DB (5), respectively, edits or renders each shooting information to maintain the same format as the previously captured information; a matching device (7) that matches the mapped information by ground reference point and GPS coordinates; a real-time shooting information DB (8) that stores the matched information; and a previously captured information DB (9) in which previously captured information is stored. The system includes a comparator (10) that extracts each shooting information from a real-time shooting information DB (8) and a pre-shot information DB (9), compares them with each other, and updates the parts that differ from the pre-shot information as real-time shooting information, and a digital map DB (11) that converts the updated information into a digital map and stores it as digital map information, and the ground reference point (1) includes a pillar (110) fixed at a point that serves as a reference point of a survey area, an antenna (120) installed on the top of the pillar (110), a turntable (130) rotatably installed on the top of the pillar (110), a reflector (140) fixed to the turntable (130) and installed to increase the reception sensitivity of radio waves directed toward the antenna (120), a driving motor (150) that rotates the turntable (130), and a controller (160) installed inside the pillar (110) to control the driving of the driving motor (150), and the mapping device (6), matching device (7), and The comparator (8) is mounted in the housing (100) in the form of a processing module;The previously captured information DB (9), the real-time captured information DB (10), and the digital map DB (11) are mounted in the housing (100) in the form of memory; The above-mentioned enclosure (100) is formed in the shape of a rectangular box with an open front, and the open front is configured to be openable and closable by an enclosure door (110). A main board (120) is fixed to the rear wall inside the enclosure (100), and a processing module and memory are mounted on the main board (120). A space is formed on the rear side of the main board (120), and the space is partitioned by a copper plate (130) to divide it into a cooling chamber (C1) and an indirect cooling chamber (C2). The upper and lower ends of the space are sealed by a sealing member (C3), and the cooling chamber (C1) is connected to a cooling water supply tank so that cooling water flows through it. A filtering inlet (140) is formed on the lower side of both sides of the enclosure (100) to introduce filtered outside air, and an exhaust port (150) is formed on the upper surface of the enclosure (100). The exhaust port (150) In a digital map production system for comparing and analyzing GPS information and real-time information, characterized by having an exhaust fan (160) provided at the top, a drop-type fire extinguishing unit (200) is further installed on the top of the housing (100) to suppress the fire by cutting and falling due to flames and heat in the event of a fire, and the drop-type fire extinguishing unit (200) comprises: a unit box (210) with an open bottom and an empty interior; a plurality of binding hooks (220) fixed to the inner ceiling surface of the unit box (210); a fire extinguishing cloth (230) with one end fixed to the binding hooks (220) and the other end folded multiple times and inserted into the unit box (210); and a balloon (240) inserted into the open bottom of the unit box (210) to support the bottom of the fire extinguishing cloth (230). A square frame-shaped locker (250) fixed to the open bottom of the unit box (210) so that the balloon (240) cannot escape;It includes, and since the square frame-type rocker (250) has a square container shape with an empty interior, it has an empty hollow portion (252), and the unit box (210) is manufactured by being molded into a box molding product, and the box molding product comprises, for every 100 parts by weight of polymethylpentene, 10 parts by weight of bismuth carbonate, 5.5 parts by weight of polyvinylpinolidone copolymer, 5.5 parts by weight of disodium EDTA, 6.5 parts by weight of methylsulfonylmethane, 5.5 parts by weight of MEHEC (methylethylhydroxyethylcellulose), and n-BMA (n-butyl methacrylate); A digital map production system for comparing and analyzing GPS information and real-time information, characterized by being composed of 8.5 parts by weight.

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