KR102484130B1 - Digital map manufacturing system with enhansing accuracy of numerical value - Google Patents

Abstract

The present invention relates to a numerical map production system with enhanced accuracy of a numerical map that can maximally suppress the transmission of vibration and shock of a survey vehicle to a body of an MMS in the process of acquiring ground images through an MMS-mounted survey vehicle for the production of a numerical map so as to acquire the ground images acquired through a digital image acquisition unit of the MMS as high-quality images which are always in a state of being clear, and as a result, to improve the accuracy of the numerical map produced based on corresponding images. The numerical map production system with enhanced accuracy of the numerical map according to the present invention is configured to include an image acquisition unit support device, the MMS, a numerical map producer, and a lens condition monitoring device, wherein the image acquisition unit support device is configured to include a housing, a support module, a cover, and a sealing cap, and the lens condition monitoring device is configured to include a base unit, a mirror, a transparent panel, an image acquisition unit module, and a display panel.

Description

Digital map manufacturing system with enhancing accuracy of numerical value}

The present invention relates to a digital map production system that improves the precision of digital maps in the field of digital map technology. In the process of acquiring numerical information, location information, or coordinate information corresponding to a specific location of the MMS, vibration and shock transfer of the surveying vehicle to the MMS can be suppressed as much as possible, thus acquiring the numerical information of the MMS and acquiring it through a digital image securing device. Numerical information and images are always obtained as accurate information values and clear high-quality images, and as a result, numerical information that improves the precision of digital maps produced based on the measured numerical information and secured images is highly improved. It is about a map making system.

A digital map is an electronic map produced in the form of a digital map by analyzing various numerical information and image information obtained through survey maps, aerial images, satellite images, etc., and numerically editing them.

Therefore, for digital maps, the digitized geographic information of the corresponding point must be precisely applied to the exact location of the mapped terrain image so that the user can easily obtain geographical/topographical information while viewing the electronic map, and the mapped terrain image is also secured. It must be drawn accurately according to the image information provided.

These digital maps are drawn and produced from images collected through air and ground. In other words, in the digital map production based on 3D basic information on the ground, basic image information on the ground is secured or collected using an aircraft, and by reinforcing it, the numerical information, which is basic information on the area concerned, is directly secured or collected and made

And the images collected in this way are synthesized into a complete integral image through mutual connection between adjacent or neighboring images, and are completely produced as a digital map.

At this time, in order to synthesize the interconnection of the collected images, a criterion for accurate connection between the images is required, and in order to accurately set the criterion, it is necessary to secure accurate aerial images and terrestrial images according to GPS coordinates.

That is, it is necessary to precisely collect and secure accurate numerical information, coordinate information, and location information for a specific location.

In addition to this, in order to improve the precision of the digital map produced, it is necessary to acquire more accurate aerial and terrestrial images.

Therefore, the present invention proposes the present invention as a technology that enables the digital information, coordinate information, or location information surveying vehicle and the ground image acquired through the MMS mounted thereto to be always obtained as an accurate and clear image for the production of a digital map. It became.

Hereinafter, in order to simplify the explanation and make it easy to understand, it will be described and understood that the image includes numerical information.

Korean Patent Registration No. 10-1992742 (Announced on June 26, 2019), “Digital Map Production System with Improved Precision of Digital Map” Korean Patent Registration No. 10-1710429 (published on February 28, 2017), “Digital map correction device with improved precision based on GIS” Korean Patent Registration No. 10-2260071 (Announced on June 3, 2021), “Digital map production system that can improve precision by utilizing 3D location information”

In an embodiment of the present invention, in the process of acquiring a ground image through an MMS-equipped surveying vehicle for the production of a digital map, vibration and shock transmission of the surveying vehicle to the body of the MMS can be suppressed as much as possible, A numerical value that improves the precision of a digital map so that the ground image acquired through the digital image acquisition unit can always be obtained as a high-quality image in a clear state, and as a result, the precision of the digital map produced based on the image can be improved. Provides a map production system.

In addition, in an embodiment of the present invention, in the process of acquiring a ground image through an MMS-equipped surveying vehicle to produce a digital map, a worker in the surveying vehicle mounts the lens of the digital image acquisition unit acquiring the ground image on the surveying vehicle. It can be visually confirmed in one state, and the ground image is obtained in a poor state due to insects sitting on the lens of the digital image acquisition unit or small foreign substances attached to it and then not falling off quickly, and due to this, re-shooting of the area is performed Difficulties that need to be done can be prevented, and as a result, the acquisition of ground images through surveying vehicles and MMS can be performed more efficiently, and the precision of digital maps that can be finally produced based on them can be improved. An improved digital mapping system is provided.

A digital map production system with improved precision of a digital map according to an embodiment of the present invention is mounted on a roof panel of a survey vehicle for digital map production (hereinafter referred to as “survey vehicle”), and shocks and shocks transmitted from the survey vehicle Integrated type of image acquisition unit support device with vibration absorption function, multiple digital image acquisition units, 3D laser system (LiDAR LiDAR), satellite navigation system (GPS), mileage sensor (DMI) and other sensors MMS (Mobile Mapping System), which is a combined body and is installed on the upper surface of the image securing unit support device to obtain ground images and numerical information for digital map production, and digital maps are produced based on aerial images and ground images through the MMS and a lens state monitoring device for monitoring whether or not foreign substances are attached to the lenses of the digital image acquisition units during operation of the digital image acquisition units acquiring the terrestrial image.

In addition, the image securing unit support device has a cylindrical structure with an open top coupled to the roof panel of the surveying vehicle, and a plurality of dampening coil springs disposed in the vertical direction are installed on the inner bottom surface along the circumferential direction A housing, a base plate having a diameter smaller than the inner diameter of the housing and accommodated inside the housing in a state of being mounted on an upper portion of the coil spring, a lower end coupled to the center of the upper surface of the base plate, and an upper end of the MMS A support module including a support post detachably coupled to a lower portion, and a disk-shaped structure in which a through hole for passing the support post is formed in the center, coupled to an upper portion of the housing to seal the inside of the housing, A cover for sealing watertightness between the support post and the through hole is coupled to the through hole, and a cover having a fluid supply hole for supplying fluid into the housing, and detachable from the cover to seal the fluid supply hole. It may include a possibly coupled sealing cap.

In addition, the lens state monitoring device has a donut shape and is coupled to the roof panel of the surveying vehicle in a state in which the housing is located in the center of the hole, and the mirror attachment groove has a number corresponding to the digital image acquisition units of the MMS on the upper surface. It is formed along the circumferential direction, and each of the mirror attachment grooves has a base portion formed in the form of an inclined surface so that the attached mirror can be inclined at an angle at which the lens of the corresponding digital image acquisition unit among the digital image acquisition units is reflected. , The mirror attached obliquely to the inclined surface of the corresponding mirror attachment groove for each mirror attachment groove and through which the lens of the corresponding digital image acquisition unit among the digital image acquisition units is reflected, and a number corresponding to the mirror attachment grooves on the upper side from the base portion. Each of the mirror attachment grooves has a transparent panel installed at the same inclination as the slope of the inclined plane so as to face the inclined surface of the corresponding mirror attachment groove, and is installed for each transparent panel at an angle at which the corresponding mirror among the mirrors is photographed. It may include an image securing unit module installed on the transparent panel, and a display panel installed inside the surveying vehicle in a way to display image data acquired from the image securing unit modules on one screen.

According to an embodiment of the present invention, in the process of acquiring a ground image through an MMS-equipped surveying vehicle for the production of a digital map, vibration and shock transfer of the surveying vehicle to the body of the MMS can be suppressed as much as possible, A terrestrial image acquired through the digital image acquisition unit can always be obtained as a high-quality image in a clear state, and as a result, the precision of a digital map produced based on the image can be improved.

In addition, in the process of acquiring ground images through an MMS-equipped surveying vehicle for the production of a digital map, a worker in the surveying vehicle visually inspects the lenses of digital image acquisition units acquiring ground images while riding in the surveying vehicle. Therefore, a phenomenon in which ground images are obtained in a poor state due to insects sitting on the lenses of the digital image acquisition units or small foreign substances attached to them and not falling off quickly, and it is difficult to retake the area due to this This can be prevented, and as a result, the acquisition of the ground image through the surveying vehicle and the MMS can be performed more efficiently, and the precision of the digital map finally produced based on this can be improved.

1 is a block configuration diagram illustrating a digital map production system with improved precision of a digital map according to an embodiment of the present invention.
2 is a side cross-sectional view illustrating an image acquisition unit support device and a lens state monitoring device in a digital map production system with improved precision of a digital map according to an embodiment of the present invention.
3 is a block diagram illustrating an electrical configuration of a lens state monitoring device in a digital map production system with improved precision of a digital map according to an embodiment of the present invention.

The detailed description of the present invention below refers to the accompanying drawings shown as examples of embodiments in which the present invention can be practiced. These embodiments are described in detail so that those skilled in the art will be able to practice the present invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in one embodiment in another embodiment without departing from the spirit and scope of the invention. Additionally, it should be understood that the location or arrangement of individual components within each described embodiment may be changed without departing from the spirit and scope of the invention.

Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but these may vary depending on the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

In the invention, when a certain part “includes” a certain component in the whole, this means that it may further include other components, rather than excluding other components, unless otherwise stated. In addition, as described in the specification, "... wealth", "… A term such as “module” refers to a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software.

Hereinafter, in order to simplify the description and make it easy to understand, it will be explained and understood that an image includes numerical information, and securing a digital image will be explained and understood as securing an image at the same time as securing numerical information.

A digital map production system with improved precision of a digital map according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 .

1 is a block configuration diagram illustrating a digital map production system with improved precision of a digital map according to an embodiment of the present invention, and FIG. 2 is a digital map with improved precision of a digital map according to an embodiment of the present invention. 3 is a cross-sectional side view illustrating an image securing unit support device and a lens state monitoring device in a manufacturing system, and FIG. 3 is an electrical configuration of a lens state monitoring device in a digital map production system with improved precision of a digital map according to an embodiment of the present invention. It is a block configuration diagram illustrating.

As shown, the digital map production system with improved precision of the digital map according to an embodiment of the present invention includes an image acquisition unit support device 100, an MMS 200, a digital map maker 300, and a lens state monitoring device. (400).

The image securing unit support device 100 is mounted on the roof panel 11 of a surveying vehicle (10, hereinafter referred to as “surveying vehicle”) for digital map production, and such an image securing unit support device 100 is a surveying vehicle 10 ) has a function of absorbing shock and vibration transmitted from

That is, the image securing unit support device 100 may include a housing 110, a support module 120, a cover 130, and a sealing cap 140.

The housing 110 has a cylindrical structure with an open top and is coupled to the roof panel 11 of the survey vehicle 10, and the housing 110 has a dampening coil spring 111 disposed in the vertical direction on the inner bottom surface. It is installed in plurality along the circumferential direction.

The support module 120 includes a base plate 121 and a support post 122, and the base plate 121 is formed to have a smaller diameter than the inner diameter of the housing 110 and is mounted on top of the coil spring 111. The support post 122 has a lower end coupled to the center of the upper surface of the base plate 121 and an upper end coupled to the lower part of the MMS 200 detachably. Here, since the detachable coupling of the support post 122 to the bottom of the MMS 200 can be implemented in various forms through known techniques, detailed description and illustration thereof will be omitted in this embodiment.

The cover 130 has a disk-shaped structure in which a through hole 131 for passing the support post 122 is formed in the center, and this cover 130 is placed on top of the housing 110 to seal the inside of the housing 110. are combined In addition, in the cover 130, a packing 132 for watertightness between the support post 122 and the through hole 131 is coupled to the through hole 131, and the fluid 112 is supplied to the inside of the housing 110. A fluid supply hole 133 for this is formed.

The sealing cap 140 is detachably coupled to the cover 130 to seal the fluid supply hole 133 of the cover 130 .

By this configuration of the image securing unit support device 100, the body portion of the MMS 200 to be described later is supported through the support module 120 supported in the fluid 112 inside the housing 110, and at the same time this support Since the base plate 121 of the module 120 is elastically supported by the coil spring 111 on the bottom surface of the housing 110, transmission of vibration and shock of the survey vehicle 10 to the MMS 200 is maximally suppressed, Accordingly, the terrestrial image obtained through the MMS 200 is always obtained as a high-quality image in a clear state, and numerical information based on coordinate information or location information can be obtained with very precise values.

The MMS (200) includes a plurality of digital image acquisition units (210), a 3D laser system (LiDAR/LIDAR, 220), a satellite navigation device (GPS, 230) capable of accurately obtaining very precise numerical information, and a mileage sensor. (DMI, 240) and other sensors 250, and the MMS 200 is installed on the upper surface of the image acquisition unit support device 100 to simultaneously acquire ground images for digital map production and precise numerical information.

Therefore, the MMS 200 is described and understood as securing both clear image information and precise numerical information.

The digital map maker 300 creates a digital map based on aerial images and ground images through the MMS 200.

The digital map maker 300 includes a receiver 310, a drawing image DB 320, an image editing module 330, a coordinate synthesis module 340, and an image drawing module 350.

The receiver 310 receives a terrestrial image from the digital image acquisition unit 210 of the MMS 200.

The drawing image DB 320 stores terrestrial images from the receiver 310 .

The image editing module 330 synthesizes and edits multiple images. At this time, the image editing module 330 connects and edits a plurality of images to complete one image, and adjustment processing such as size and resolution is performed to connect different images. In addition, the image editing module 330 may be applied with a general graphic editing application, and a known or common program may be applied for outputting and editing a 3D image.

The coordinate synthesis module 340 synthesizes GPS coordinates with aerial and terrestrial images or drawing images. At this time, the coordinate synthesis module 340 synthesizes the GPS coordinates with the image or drawing image, and generally synthesizes the coordinates based on the reference point displayed on the image or drawing image. The reference point is displayed in the process of creating an image or drawing image, and the display method may be a natural display method through photographing or an artificial display method through drawing.

The image drawing module 350 creates a drawing image based on the image. At this time, the image drawing module 350 creates a drawing image that becomes the background of the digital map by performing drawing work based on the image. An application of a method of recording on a computer may be applied. Since the image drawing module of the application method based on the image is a well-known and common technology widely used in the field of digital map production, its description is omitted here.

In addition, this digital map maker 300 uses the configuration of the digital map maker of “Digital Map Production System with Improved Digital Map Accuracy” of Korean Patent Registration No. 10-1992742, and therefore, more detailed For configuration and operation, refer to the above “Digital Map Production System with Improved Digital Map Precision”.

The lens state monitoring device 400 has a function of monitoring whether or not foreign substances are attached to the lenses 211 of the digital image acquisition units 210 during the operation of the digital image acquisition units 210 of the MMS 200 that acquire the ground image. Do it.

The lens state monitoring device 400 includes a base unit 410, a mirror 420, a transparent panel 430, an image securing unit module 440, and a display panel 450.

The base portion 410 has a donut shape and is coupled to the roof panel 11 of the survey vehicle 10 in a state where the housing 110 of the image securing unit support device 100 is positioned at the center of the hole 411. Also, on the upper surface of the base part 410, mirror attachment grooves 412 corresponding to the number of digital image acquisition parts 210 of the MMS 200 are formed along the circumferential direction, and each of these mirror attachment grooves 412 The silver mirror 420 is formed in the form of having an inclined surface 412a so that the lens 211 of the corresponding digital image securing unit 210 among the digital image securing units 210 can be disposed inclined at an angle.

The mirror 420 is obliquely attached to the inclined surface 412a of the corresponding mirror attachment groove 412 for each mirror attachment groove 412 of the base portion 410. The lens 211 of the corresponding digital image acquisition unit 210 is reflected.

The transparent panel 430 is installed in a number corresponding to the mirror attachment grooves 412 on the upper side from the base portion 410, and each of these transparent panels 430 has a corresponding mirror attachment groove among the mirror attachment grooves 412 ( It is installed with the same inclination as the inclination of the inclination surface 412a of the mirror attachment groove 412 so as to face the inclination surface 412a of 412).

The image securing unit module 440 is installed for each transparent panel 430, and the image securing unit module 440 is installed on the corresponding transparent panel 430 at an angle to photograph the corresponding mirror 420 among the mirrors 420. do.

The display panel 450 is installed inside the survey vehicle 10 in such a way as to display the image data obtained from the image acquisition unit modules 440 in a distinctive way on one screen.

In addition, the lens state monitoring device 400 is a communication module (hereinafter referred to as “image acquisition unit operation signal”) that receives a signal indicating that the shooting operation starts from the digital image acquisition units 210 of the MMS 200 (hereinafter referred to as “image acquisition unit operation signal”). 460) and the image acquisition central control unit 470 that operates the corresponding image acquisition unit module 440 among the image acquisition unit modules 440 according to the image acquisition unit operation signal transmitted through the communication module 460. can be configured to include In other words, each of the digital image acquisition units 210 of the MMS 200 transmits the image acquisition unit operation signal to the communication module 460 of the lens state monitoring device 400 when each operation is performed to obtain a terrestrial image. Identification information is included in the securing unit operation signal and transmitted, and accordingly, the image acquisition central control unit 470 of the lens state monitoring device 400 is a corresponding image acquisition unit according to the identification information included in the image securing unit operation signal. This will activate the module 440.

By the above-described configuration of the lens state monitoring device 400, in the process of obtaining a ground image through the digital image acquisition unit 210 of the MMS 200, the operator in the survey vehicle 10 uses the digital image acquisition unit 210. ), that is, a situation in which an insect sits on the lens 211 of the digital image acquisition unit 210 or a small foreign substance adheres to the lens 211 and does not fall off quickly, so as described above, the digital image acquisition unit 210 A phenomenon in which a ground image is obtained in a poor state due to insects sitting on the lens 211 or a small foreign object not falling off quickly and the difficulty of re-photographing the area due to this can be prevented, surveying Acquisition of ground images through the vehicle 10 and the MMS 200 can be performed more efficiently.

As described above, in the present description, specific details such as specific components and limited embodiments and drawings have been described, but this is only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. No, and those skilled in the art can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments and should not be defined, and all things that have modifications equivalent or equivalent to these claims as well as the claims described below will fall within the scope of the spirit of the present invention.

10: survey vehicle 11: roof panel
100: image securing unit support device 110: housing
111: coil spring 112: fluid
120: support module 121: base plate
122: support post 130: cover
131: through hole 132: packing
133: fluid supply hole 140: sealing cap
200: MMS 210: digital image acquisition unit
211: lens 220: three-dimensional laser system
230: satellite navigation device 240: mileage sensor
250: sensor 300: digital map maker
310: receiver 320: drawing image DB
330: image editing module 340: coordinate synthesis module
350: image drawing module 400: lens condition monitoring device
410: base part 411: hole
412: mirror attachment groove 412a: inclined surface
420: mirror 430: transparent panel
440: image acquisition module 450: display panel
460: communication module 470: image acquisition central control unit

Claims (2)

delete Mounted on the roof panel 11 of the surveying vehicle (10, hereinafter referred to as “surveying vehicle”) for digital map production, image securing unit support device having a function of absorbing shock and vibration transmitted from the surveying vehicle 10 (100):
It is an integral combination of a plurality of digital image acquisition units 210, a three-dimensional laser system (LiDAR, lidar, 220), a satellite navigation system (GPS, 230), a mileage sensor (DMI, 240), and other sensors (250). , MMS (Mobile Mapping System, 200) installed on the upper surface of the image securing unit support device 100 to acquire ground images and numerical information for digital map production:
A digital map maker 300 for producing a digital map based on aerial images and terrestrial images through the MMS 200: and
a lens state monitoring device 400 that monitors whether or not foreign substances are attached to the lenses 211 of the digital image acquisition units 210 while the digital image acquisition units 210 acquire the ground image; In the digital map production system with improved precision of the digital map comprising a,
The image securing unit support device 100,
A housing having a cylindrical structure with an open top coupled to the roof panel 11 of the surveying vehicle 10 and having a plurality of dampening coil springs 111 disposed in the vertical direction installed along the circumferential direction on the inner bottom surface (110);
A base plate 121 formed to have a diameter smaller than the inner diameter of the housing 110 and accommodated inside the housing 110 in a state of being mounted on the top of the coil spring 111, and a lower end of the base plate 121 ) The support module 120 including a support post 122 coupled to the center of the upper surface and the upper end of which is detachably coupled to the lower part of the MMS 200;
The through hole 131 for passing the support post 122 has a disk-shaped structure formed in the center, and is coupled to the upper portion of the housing 110 to seal the inside of the housing 110, and the support post 122 ) and packing 132 for watertightness between the through holes 131 are coupled to the through holes 131, and a fluid supply hole 133 for supplying fluid into the housing 110 is formed. Cover 130 to be; and
And a sealing cap 140 detachably coupled to the cover 130 to seal the fluid supply hole 133,
The lens state monitoring device 400,
It is formed in a donut shape and coupled to the roof panel 11 of the survey vehicle 10 with the housing 110 positioned at the center of the hole 411, and the digital image acquisition unit of the MMS 200 on the upper surface ( 210) and a corresponding number of mirror attachment grooves 412 are formed along the circumferential direction, and the mirror 420 to which each of the mirror attachment grooves 412 is attached is a corresponding one of the digital image acquisition unit 210. a base portion 410 having a shape having an inclined surface 412a so that the lens 211 of the digital image acquisition unit 210 can be inclined at an angle through which it is reflected;
Each mirror attachment groove 412 is obliquely attached to the inclined surface 412a of the corresponding mirror attachment groove 412 so that the lens 211 of the corresponding digital image acquisition unit 210 among the digital image acquisition units 210 is reflected. the mirror 420;
A number corresponding to the mirror attachment grooves 412 is installed on the upper side from the base portion 410, and each of them faces the inclined surface 412a of the corresponding mirror attachment groove 412 among the mirror attachment grooves 412. a transparent panel 430 installed with the same inclination as the inclination of the inclined surface 412a;
an image securing unit module 440 installed on each transparent panel 430 and installed on the corresponding transparent panel 430 at an angle for photographing the corresponding mirror 420 among the mirrors 420;
A display panel 450 installed inside the surveying vehicle 10 in a way to display image data acquired from the image acquisition unit modules 440 in a distinctive manner on one screen; A digital map production system that improves the precision of a digital map, comprising:

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