Drilling apparatus capable of automatically designing blast hole, and blast hole drilling method using same

Abstract

The present invention relates to a drilling apparatus capable of automatically designing a blast hole, and a blast hole drilling method using same. The apparatus receives position information and angle information of a drilling part moved by a moving vehicle part, displays, on a screen of a display part, a drilling point of the drilling part and a blast hole bored by the drilling part, and displays, on the screen, guidelines for burden or resistance lines on the basis of pre-stored burden or resistance lines, so that the positions of the plurality of blast holes are sequentially and automatically designated at a blasting site, and an operator accurately drills the blast hole at the designated position by means of the drilling part while checking, in real time, the position of the drilling part moved to the designated position, and thus manpower, costs, and time required for a blast hole drilling operation can be greatly reduced, and the safety of the operator during a blasting operation can be improved.

Description

A drilling device capable of automatically designing a blast hole and a drilling method using the same

[0001] The present invention relates to a drilling device capable of automatically designing a blast hole and a drilling method for a blast hole using the same, and more specifically, to a drilling device capable of automatically designing a blast hole, which automatically designs a drilling location at a blasting site while confirming the location of the drilling device in real time based on GNSS, and a drilling method for a blast hole using the same.

[0002] Generally, in construction fields such as rock blasting, demolition of abandoned buildings, and open blasting, blasting systems that use explosives to cause explosion and collapse are used.

[0003] Specifically, the area or target to be blasted is divided into multiple sections, and multiple blasting holes are drilled for each section into which explosives are inserted. After loading explosives into each of the drilled holes, they are connected to the blasting device. By detonating the detonators located in the blasting holes, the explosives are detonated, resulting in the destruction and collapse of the target.

[0004] In particular, in the case of an open-pit blasting system that uses explosives to blast a buried area in order to mine metals or minerals, a blasting hole must first be formed at the blasting site using a drilling device to load the explosives.

[0005] At this time, the exact locations of the blast holes to be drilled at the blasting site are designed according to the planned drilling pattern or space attack and resistance line, and then drilling work is performed with a drilling device at the locations of the designed blast holes.

[0006] However, in conventional blasting sites, the design of blasting hole locations is done by photographing the terrain of the blasting site and measuring the terrain, which requires a large number of manpower and is cumbersome as the drilling workers have to mark the drilling locations directly on the ground.

[0007] In addition, in conventional blasting sites, workers often had to get on and off the drill to mark the location of the blast hole on the ground, which took a lot of work time, and in the process of getting off the drill and marking the ground, workers were exposed to dangers at the work site, and there was a high risk of safety accidents occurring.

[0008] A prior art patent related to the present invention is Korean Patent Publication No. 2022-0153338 entitled “Blasting Management System for Vibration and Fragmentation Analysis by Blasting.”

[0009] The purpose of the present invention is to provide a drilling device capable of automatically designing a blasting hole, which can automatically designate the positions of a plurality of blasting holes at a blasting site, move to the designated positions, and accurately drill the blasting holes at the designated positions, and a method for drilling a blasting hole using the same.

[0010] In order to achieve the above object, one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention is characterized by including a drilling part that drills a blast hole in the ground by means of a drill that is rotated by a motor, a mobile vehicle part that is provided with the drilling part and moves the drilling part, a position detection part that is provided in the drilling part and detects the position of the drilling part by GNSS, an angle detection part that is provided in the drilling part and detects the angle of the drilling part with respect to a flat ground, and a terminal for designing a blast hole that receives position information and angle information of the drilling part from the position detection part and the angle detection part, and displays a drilling point of the drilling part and a blast hole drilled by the drilling part moved to the mobile vehicle part on a screen of a display part, and displays a guide line of a space interval or a resistance line on the screen based on a pre-stored space interval or a resistance line.

[0011] In the present invention, the blast hole design terminal may further include a perforation position calculation unit that receives position information and angle information, calculates a perforation point of the perforation part, and displays the calculated point on a screen.

[0012] In the present invention, the position detection unit is located at the top of the perforation, and the perforation position calculation unit creates a reference sphere having the entire length of the perforation as a radius and the top point of the perforation, which is a point detected by the position detection unit, as a center, and sets the top point as the center coordinate of the reference sphere, and calculates the surface coordinates for the lower part of the perforation on the surface of the reference sphere at an angle inclined to the X-axis or Y-axis detected by the angle detection unit.

[0013] In the present invention, the perforation position calculation unit can reflect the position and angle of the perforation in real time when the perforation is moved by the moving vehicle unit and display the change in the position of the perforation point on the screen of the display unit.

[0014] In the present invention, the terminal for designing blast holes may further include a design information input unit capable of inputting a perforation depth, a space interval between blast holes, and a resistance line.

[0015] In the present invention, the terminal for designing a blast hole may further include a blast hole location storage unit that stores location information of a blast hole drilled by the drilling unit and displays the location information of the drilled blast hole on the screen of the display unit.

[0016] One embodiment of a drilling device capable of automatically designing a blast hole according to the present invention further includes a cliff line scanning unit that scans a cliff line at a blasting site and provides cliff line information to a terminal for designing the blast hole, and the terminal for designing the blast hole may further include a reference drilling row display unit that receives the cliff line information, is spaced apart from the cliff line by a distance of a previously input resistance line, and displays a reference drilling row in which the first blast hole to be drilled is drilled.

[0017] In the present invention, the blast hole design terminal further includes a first guide line display unit that displays a first circular guide line with a radius of a space interval as the center of a blast hole punched on a screen with pre-input space interval information; and a second guide line display unit that displays a second circular guide line with a radius of a resistance line as the center of a blast hole punched on a screen with pre-input resistance line information through a design information input unit, wherein the first guide line is a guide line that guides the positions of a plurality of blast holes being worked in a row, and the second guide line may be a guide line that guides the positions of blast holes in another row in a blast hole when working the blast holes in a plurality of rows.

[0018] In the present invention, the first guide line display unit and the second guide line display unit can display the first guide line and the second guide line in different colors.

[0019] In the present invention, the first guide line display unit may display the first guide line more thickly and brightly or in a different color when the perforation point moved when the perforation part is moved by the moving vehicle part is positioned to match the first guide line, and the second guide line display unit may display the second guide line more thickly and brightly or in a different color when the perforation point moved when the perforation part is moved by the moving vehicle part is positioned to match the second guide line.

[0020] In the present invention, the blast hole design terminal may further include a communication data processing unit that wirelessly communicates with a blast hole design terminal equipped on another drilling device at the same blasting site to receive location information of a blast hole drilled by another drilling device and selectively display it on a screen.

[0021] In the present invention, the blast hole design terminal may further include a blast hole pattern automatic design unit that automatically displays on a screen a plurality of blast hole planning points to be drilled based on the first blast hole drilled at a blasting site according to preset columns and rows, the number of blast holes, resistance lines, and spacing.

[0022]

[0023] In order to achieve the above object, one embodiment of a method for drilling a blast hole according to the present invention is a method for drilling a blast hole by drilling a plurality of blast holes in a ground of a blasting site with a pre-designed drilling pattern using a drilling device equipped with a drilling part for drilling blast holes in the ground of a blasting site on a mobile vehicle, the method comprising: an information receiving step of receiving position information and angle information about the drilling part using a position detection unit and an angle detection unit installed in the drilling part; a drilling point display step of calculating coordinates of a drilling point drilled by the drilling part at the blasting site using the position information and angle information received in the information receiving step and displaying the drilling point on a screen; a first blasting hole drilling step of drilling a first blast hole at the blasting site; a drilling position display step of guiding a drilling position of a next blast hole centered on a previously drilled blast hole; moving the drilling part with a mobile vehicle to move the drilling point displayed on the screen to match the position indicated by the drilling position display step, and then operating the drilling part to drill a blast hole with a pre-set drilling depth. Includes a perforation step.

[0024] In the present invention, the perforation point display step may include a central coordinate setting process in which the entire length of the perforation is set as a radius and the uppermost point of the perforation is set as a central coordinate by the position detection unit located at the uppermost end of the perforation, a surface coordinate calculation process in which a reference sphere is created in which the entire length of the perforation is set as a radius based on the central coordinate set in the central coordinate setting process, and a surface coordinate corresponding to an end of the perforation on the surface of the reference sphere at an angle of inclination toward the X-axis or Y-axis of the perforation detected by the angle detection unit, and a perforation point display process in which the surface coordinate calculated in the surface coordinate calculation process is displayed on a screen.

[0025] In the present invention, the perforation point display step uses GNSS to check in real time the change in the position and angle of the perforation part moved by the moving vehicle and displays the perforation point on the screen, and one embodiment of the method for perforating a blast hole according to the present invention may further include a perforation pattern information input step for inputting information on perforation depth, space interval, and resistance line before starting the blasting operation.

[0026] One embodiment of the blast hole drilling method according to the present invention further includes a reference drilling row display step of scanning a cliff line at a blasting site before the first blast hole drilling step and displaying a reference drilling row on a screen in which the first blast hole is drilled using the scanned cliff line information, and the first blast hole drilling step can drill the first blast hole at the blasting site after aligning a drilling point on the reference drilling row displayed by the reference drilling row display step.

[0027] In the present invention, the perforation position indicating step may include a first guide line indicating process of indicating a first circular guide line having a radius of a preset space interval centered on a reference blast hole among blast holes perforated by the perforation portion, or a second guide line indicating process of indicating a second circular guide line having a radius of a resistance line centered on the reference blast hole.

[0028] In the present invention, the perforation step may include a first perforation process of moving the perforation part with a mobile vehicle to align the perforation point with a line of a first guide line and perforating the same row of blast holes, or a second perforation process of moving the perforation part with a mobile vehicle to align the perforation point with a line of a second guide line and perforating a row of blast holes different from the row of blast holes perforated by the first perforation process.

[0029] In the present invention, the first perforation process may display the first guide line more thickly and brightly or in a different color when the perforation point is positioned to match the first guide line, and the second perforation process may display the second guide line more thickly and brightly or in a different color when the perforation point is positioned to match the second guide line.

[0030] In the present invention, the perforation position display step may further include a blast hole pattern display process that automatically displays on the screen a plurality of blast hole locations to be perforated based on preset columns and rows, number of blast holes, spacing, and resistance lines based on the first blast hole to be perforated.

[0031] The present invention automatically and sequentially designates the positions of a plurality of blast holes to suit a blasting site in a situation where there is no drilling design, and allows a worker to check in real time the positions of the drill holes moved to the designated positions, thereby accurately drilling blast holes at the designated positions while maintaining the height-level custom design, space gap, and hole resistance line, thereby significantly reducing the manpower, cost, and time required for drilling blast holes, and has the effect of improving the safety of workers during blasting work.

[0032] Figure 1 is a schematic diagram showing one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention.

[0033] Figure 2 is a block diagram illustrating one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention.

[0034] Figure 3 is a schematic diagram illustrating a cliff line scanning section in one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention.

[0035] Figure 4 is a flow chart illustrating one embodiment of a method for perforating a blast hole according to the present invention.

[0036] FIG. 5 and FIG. 6 are drawings illustrating a screen of a terminal for designing a blast hole in one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention.

[0037] *Explanation of major symbols in the drawing

[0038] 100: Perforation part 110: Drill part

[0039] 120: Mast section 200: Moving vehicle section

[0040] 300: Position detection unit 400: Angle detection unit

[0041] 500: Terminal for blasting design 500a: Display unit

[0042] 510: Precision position data acquisition unit 520: Perforation position calculation unit

[0043] 530: Design information input section 540: Blast hole location storage section

[0044] 550: First guide line indicator 560: Second guide line indicator

[0045] 570: Perforation operation control unit 580: Communication data processing unit

[0046] S100: Information receiving stage S200: Perforation point display stage

[0047] S210: Center coordinate setting process S220: Surface coordinate calculation process

[0048] S230: Perforation point display process S300: Reference perforation row display step

[0049] S400: First blast hole drilling stage S500: Drilling position indication stage

[0050] S600: Perforation stage

[0051] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete and to sufficiently convey the spirit of the present invention to those skilled in the art.

[0052] In this specification, when a component is referred to as being on another component, it means that it can be formed directly on the other component, or a third component can be interposed between them. Furthermore, in the drawings, the shapes and thicknesses of regions are exaggerated for the purpose of effectively explaining the technical content.

[0053] Additionally, although terms such as first, second, and third have been used to describe various components in various embodiments of this specification, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiments. Additionally, the term "and / or" has been used herein to mean including at least one of the components listed before and after.

[0054] In the specification, singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprise" or "have" are intended to specify the presence of a feature, number, step, component, or combination thereof described in the specification, and should not be construed as excluding the possibility of the presence or addition of one or more other features, numbers, steps, components, or combinations thereof. In addition, in the present specification, "connection" is used to mean both indirectly connecting a plurality of components and directly connecting them.

[0055] In addition, when describing the present invention below, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0056] FIG. 1 is a schematic diagram illustrating one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention, FIG. 2 is a block diagram illustrating one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention, and FIG. 3 is a schematic diagram illustrating a cliff line scanning unit in one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention.

[0057] Referring to FIGS. 1 to 3, one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention is described in detail below.

[0058] One embodiment of a drilling device capable of automatically designing a blasting hole according to the present invention includes a drill (100) that drills a blasting hole in the ground using a drill that is rotated by a motor, and a moving vehicle (200) that is provided with the drill (100) and moves the drill (100).

[0059] The drilling unit (100) includes a drilling unit (110) that drills a blast hole in the ground through a drill that is rotated by a motor, and a mast unit (120) that is mounted so that the drilling unit (110) can move up and down and guides the up and down movement of the drilling unit (110).

[0060] As an example, the mast section (120), i.e., the perforation section (100), is installed on the moving vehicle section (200) in a form that is vertically erected on a flat surface.

[0061] The mast section (120) is equipped with a drill section (110) that can move up and down, and is provided with an actuator that moves the drill section (110) in a straight line.

[0062] The drill part (110) is provided on the lower side of the mast part (120) and is moved up and down by the actuator part to drill a blast hole in the ground, as an example.

[0063] In addition, the mobile vehicle (200) is a known vehicle that moves the perforation part (100) by driving after a worker gets on board, and is an example of a vehicle that drives on a track (caterpillar).

[0064] It is to be noted that the perforation unit (100) and the moving vehicle unit (200) can be implemented in various ways by using a known perforation device equipped with a perforator on the vehicle, and therefore a more detailed description thereof is omitted.

[0065] In addition, the drill part (100) can check the drilling depth through the drill part (110) through the movement distance of the drill part (110) moving in the longitudinal direction of the mast part (120).

[0066] The perforation part (100) is provided with a position detection part (300) that detects the position of the perforation part (100) using GNSS and an angle detection part (400) that detects the angle of the perforation part (100) with respect to the flat ground.

[0067] The position detection unit (300) and the angle detection unit (400) are mounted on the mast unit (120), with the position detection unit (300) being located at the top of the mast unit (120) and the angle detection unit (400) being located at the center of the mast unit (120).

[0068] The location detection unit (300) is, for example, a GPS antenna that detects a location by communicating with a satellite in GNSS, but can also be implemented in various ways by being modified into a known antenna that detects a location using GNSS.

[0069] The communication system of the position detection unit (300) includes a module that receives GNSS position signals from multiple GNSS (Global Navigation Satellite System) satellites and receives current position information data of a mobile terminal, and a module that receives position correction data of a mobile terminal repeatedly generated by multiple reference stations for each of the GPS satellites in the form of an RTCM (Radio Technical Commission for Maritime Services) stream through NTRIP (Network Transport of RTCM via Internet Protocol).

[0070] At this time, the GNSS (Global Navigation Satellite System) is a satellite surveying system that can receive signals broadcast from all satellites, including GPS (USA) + GLONASS (Russia) + BDS (China) + Galileo (Europe), and is capable of high-precision positioning even in harsh environments. It is a well-known system that can precisely detect location, so a more detailed explanation is omitted.

[0071] In addition, the angle detection unit (400) is, for example, a gyro sensor that detects the inclination of the mast unit (120), that is, the angle of the mast unit (120) tilted toward the X-axis or Y-axis, and may be modified and implemented in various ways as a known sensor capable of detecting the angle of inclination toward the X-axis or Y-axis.

[0072] The angle detection unit (400) is mounted at the center of the mast unit (120) to accurately detect the angle of the mast unit (120), and the position detection unit (300) is installed at the top of the mast unit (120) so that the coordinates of the top of the mast unit (120) can be calculated through GPS.

[0073]

[0074] One embodiment of a drilling device capable of automatically designing a blast hole according to the present invention includes a blast hole design terminal (500) that receives position information and angle information of a drilling hole (100) from a position detection unit (300) and an angle detection unit (400) mounted on a drilling hole (100), respectively, and sequentially designates the position of a blast hole to automatically design the position of a blast hole at a blasting site.

[0075] The terminal (500) for designing a blast hole receives location information of a perforation part (100) through a location detection part (300) and includes a precise location data acquisition part (510) that precisely confirms the location of the perforation part (100) moved by a moving vehicle part (200).

[0076] The position detection unit (300) receives GNSS position signals from multiple GNSS (Global Navigation Satellite System) satellites, and receives current position information data of the blast hole design terminal (500) attached to the drilling device and position correction data of the blast hole design terminal (500) repeatedly generated by multiple reference stations for each of the GPS satellites. At this time, the blast hole design terminal (500) is detachable from the drilling device, so that it can be attached or detached from the drilling device by a drilling worker.

[0077] The position detection unit (300) receives the terminal position correction data repeatedly generated by multiple reference stations for each GPS satellite in the form of an RTCM (Radio Technical Commission for Maritime Services) stream via NTRIP (Network Transport of RTCM via Internet Protocol).

[0078] The precision location data acquisition unit (510) reflects location correction data into the received current location information data to acquire precision location data for the GPS antenna attached to the perforation unit (100).

[0079] In addition, the blasting design terminal (500) further includes a drilling position calculation unit (520) that receives position information and angle information, calculates the drilling point of the drill part (110), and displays it on the screen.

[0080] The drilling position calculation unit (520) creates a reference sphere with the entire length of the mast unit (120) as a radius and the uppermost point of the mast unit (120) detected by the position detection unit (300) as the center, sets the uppermost point of the reference mast unit (120) as the center coordinate of the reference sphere, and calculates the surface coordinates for the end of the drill unit (110) on the surface of the reference sphere at an angle tilted to the X-axis or Y-axis detected by the angle detection unit (400).

[0081] And, the perforation position calculation unit (520) checks the direction of the vehicle, i.e., the moving vehicle unit (200), from the GPS antenna, i.e., the position detection unit (300), and checks the X-axis coordinate, Y-axis coordinate, and Z-axis coordinate, which are the three-dimensional coordinates for the perforation point of the final perforation part (100) on the ground perforated by the end of the drill unit (110) through rotation, and displays the checked three-dimensional coordinates on the screen.

[0082] The terminal (500) for designing a blast hole further includes a display unit (500a) that displays on a screen a perforation point on the ground where the drill part (110) is perforated, calculated by a perforation position calculation unit (520), and the perforation position calculation unit (520) reflects in real time the position and angle of the perforation part (100) when the perforation part (100) is moved by a moving vehicle part (200) to display the change in the position of the perforation point on the screen of the display unit (500a).

[0083] In addition, the blast hole design terminal (500) further includes a design information input unit (530) that can input a perforation depth, a space interval (the distance between blast holes), and a resistance line, and the design information input unit (530) displays an input screen on the screen of the display unit (500a) that can input the perforation depth, space interval, and resistance line, so that a worker or work manager can input the perforation depth, space interval, and resistance line through an input device such as a keyboard or mouse, or a keypad displayed through a touch screen.

[0084] In addition, the terminal (500) for designing a blast hole further includes a blast hole position storage unit (540) that stores the position information of a blast hole drilled by a drilling unit (100) and displays the position information of the drilled blast hole on the screen of the display unit (500a).

[0085] In addition, the blast hole design terminal (500) further includes a first guide line display unit (550) that displays a first circular guide line with a radius of a space interval centered on a blast hole punched on the screen using space interval information input through a design information input unit (530), and a second guide line display unit (560) that displays a second circular guide line with a radius of a resistance line centered on a blast hole punched on the screen using resistance line information input through the design information input unit (530).

[0086] The first guide line display unit (550) and the second guide line display unit (560) can display a first circular guide line and a second circular guide line centered on the most recently perforated blast hole among the blast holes perforated by the perforation unit (100), i.e., the most recently perforated reference blast hole.

[0087] The perforation position calculation unit (520) displays the perforation point with a preset diameter, and the first guide line display unit (550) and the second guide line display unit (560) display the first guide line and the second guide line, respectively, with a thickness equal to the diameter of the perforation point.

[0088] In addition, the first guide line display unit (550) and the second guide line display unit (560) display the first guide line and the second guide line in different colors.

[0089] The first guide line and the second guide line are guide lines that guide the location of the next blast hole based on the drilled blast hole. The first guide line is a guide line that guides the location of multiple blast holes that are worked in a row, and the second guide line is a guide line that guides the location of blast holes in other rows from one blast hole when working with multiple rows of blast holes.

[0090] When the perforation point (100) is moved by the moving vehicle (200), the first guide line display unit (550) displays the first guide line thicker and brighter or displays it in a different color so that the operator can easily confirm that the perforation point is aligned with the first guide line.

[0091] In addition, when the perforation point (100) is moved by the moving vehicle (200), the second guide line display unit (560) displays the second guide line thicker and brighter or displays it in a different color so that the operator can easily confirm that the perforation point is aligned with the second guide line.

[0092] A terminal (500) for designing a blast hole is installed in a vehicle, which is a mobile vehicle (200), and displays a perforation point and a first guide line or a second guide line by a perforation part (100), so that a worker can check the perforation point moving through the screen while driving the vehicle and the first guide line or the second guide line that guides the location of the next blast hole based on the perforated blast hole.

[0093] And, the worker can sequentially drill blast holes according to the space gap or resistance line by aligning the drilling point with the first guide line or the second guide line.

[0094] In addition, the second guide line display section (560) is perforated in a row to display two second guide lines based on the resistance line in two adjacent blast holes, and the location of the blast hole in another row is displayed as a perforation point at the point where the two second guide lines overlap.

[0095] The perforation part (100) can perforate a plurality of blast holes in a row through the first guide line and then, when perforating the blast holes of the next row, perforate the blast holes of the next row at the point where two second guide lines indicated with two adjacent blast holes as the center overlap.

[0096] Meanwhile, the terminal (500) for designing a blast hole further includes a drilling operation control unit (570) that controls the operation of the drilling unit (100), and the drilling operation control unit (570) operates the drilling unit (100) to drill a blast hole in the ground, but drills the blast hole at a preset drilling depth, i.e., an input drilling depth.

[0097] The perforation operation control unit (570) automatically sets the perforation target position on the first guide line or the second guide line by moving the perforation point, and when the perforation point moves and matches the perforation target position, the perforation unit (100) is automatically operated to perforate a blast hole to a preset perforation depth.

[0098] When the perforation point matches the perforation target position, the first guide line display unit (550) and the second guide line display unit (560) display the first guide line and the second guide line on the screen in a thicker line and a brighter line to notify the operator that the perforation operation has begun, and the perforation operation control unit (570) immediately operates the perforation unit (100) after the notification by the first guide line display unit (550) and the second guide line display unit (560) to perforate a blast hole at the perforation target position to a preset perforation depth.

[0099] The perforation operation control unit (570) applies the sine value of the angle (θ) detected by the angle detection unit (400) to the preset perforation depth (H1) to calculate the actual perforation operation perforation depth (H2), and perforates the blast hole with the actual perforation operation perforation depth (H2).

[0100] In more detail, the perforation operation control unit (570) calculates the actual perforation operation perforation depth (H2) using the following mathematical formula.

[0101] [Mathematical formula]

[0102] H2= H1×1 / sinθ

[0103] For example, if the altitude (Altitude) of the blasting site before operation is 520M and the target altitude after blasting is 510M, the preset drilling depth (H1) of the blasting hole is 10M, and the actual drilling depth (H2) of the actual drilling operation is 10 / sin60°.

[0104] The perforation operation control unit (570) can accurately perforate a blast hole to a preset depth by calculating the perforation depth using the angle (θ) detected by the angle detection unit (400).

[0105] In addition, the blast hole design terminal (500) further includes a communication data processing unit (580) that wirelessly communicates with a blast hole design terminal (500) equipped on another drilling device at the same blasting site, receives location information of a blast hole drilled by another drilling device, and selectively displays it on a screen.

[0106] The communication data processing unit (580) includes a wireless communication antenna for wireless communication with another adjacent punching device. The wireless communication antenna is, for example, a Bluetooth antenna, but may also be implemented in various modified forms using any known communication antenna capable of transmitting data.

[0107] The communication data processing unit (580) wirelessly communicates with blast hole design terminals (500) equipped in multiple drilling devices performing blast hole drilling work at the same blasting site, thereby sharing the location data of blast holes drilled by the corresponding drilling devices, thereby checking the progress of the entire drilling work in real time and greatly improving the efficiency of the blast hole drilling work.

[0108] The communication data processing unit (580) shares the blast hole location data stored in the blast hole location storage unit (540) while working on another blasting device, and optionally displays it on the screen so that the operator can distinguish and check the blast holes drilled by the blasting device being worked on and the blast holes drilled by another blasting device.

[0109] In addition, the blasting hole design terminal (500) displays the blasting hole closest to the perforation hole (100) when the perforation hole (100) moves, so that the worker can check the perforation location through the first guide line or the second guide line based on the blasting hole worked on by another perforation device, thereby ensuring convenience when performing perforation work.

[0110] The terminal (500) for designing a blast hole displays the blast hole at the closest distance in a linear form connecting the blast hole at the closest distance to the perforation point of the perforation part (100) displayed on the screen, and displays a first guide line or a second guide line based on the blast hole on the screen to guide the worker to accurately perform the blast hole perforation work by aligning the perforation point with the first guide line or the second guide line.

[0111]

[0112] Meanwhile, one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention further includes a cliff line scanning unit (310) that scans a cliff line at a blasting site and provides cliff line information to a blast hole design terminal (500), and the blast hole design terminal (500) further includes a reference drilling row display unit (501) that receives cliff line information of the blasting site scanned from the cliff line scanning unit (310), i.e., crest line information, and displays a reference drilling row in which the first blast hole is drilled.

[0113] The cliff line scanning unit (310) is, for example, an RTK scanning unit or 3D camera that scans the cliff line while moving along the cliff line at the blasting site.

[0114] The RTK scan section can be implemented in various ways using known scanning methods such as RTK-GNSS positioning, such as lidar sensors, so a detailed description is omitted.

[0115] In addition, the 3D camera can be implemented in various ways, such as a depth camera, and other 3D cameras that can measure the depth of an object.

[0116] The blasting site is a site with a high altitude, and information about the cliff line forming the perimeter of the ground of the blasting site can be partially obtained, and a reference hole row that can designate the location of the first blasting hole can be confirmed through the partially obtained cliff line.

[0117] The reference perforation line is displayed in the form of a line at a distance equal to the resistance line from the cliff line, in a shape corresponding to the cliff line.

[0118] The reference perforation line is displayed on the screen in a different color from the perforation point, the first guide line, and the second guide line, so that it can be distinguished from the perforation point, the first guide line, and the second guide line.

[0119] The reference perforation row is the first air resistance line spaced from the cliff line, the reference perforation row display unit (501) indicates the first air resistance line spaced from the cliff line at a resistance line interval, and the perforation unit (100) perforates the first blast hole that serves as a reference for the pattern design of the blast hole on the air resistance line when the perforation point moved during movement coincides with the air resistance line line.

[0120] The reference perforation row display unit (501) displays the reference perforation row in a thicker, brighter, or different color when the perforation point matches the reference perforation row, so that the operator can more easily check whether the perforation point matches the reference perforation row.

[0121] In addition, although not shown, the blast hole design terminal (500) further includes a blast hole pattern automatic design unit (not shown) that automatically displays on the screen a plurality of blast hole planning points to be drilled based on the first blast hole drilled at the blasting site according to preset columns and rows and the number of blast holes.

[0122] The automatic blasting pattern design unit (not shown) automatically displays on the screen multiple blasting hole locations to be drilled based on the first blasting hole through preset columns, rows, and number of blasting holes to be drilled at the blasting site, and preset spacing and resistance lines, when the number of columns, rows, and blasting holes to be drilled at the blasting site is input, and the operator can check multiple blasting hole locations displayed on the screen at once.

[0123] The planned blasting point is indicated by a circle of the same diameter as the perforation point, is indicated by a different color from the perforation point, and can be aligned with the perforation point indicated by the perforation part (100).

[0124] When the blasting point is aligned with the drilling point, the blasting point is displayed larger and brighter or is displayed in a different color from the drilling point, so that the operator can easily confirm that the drilling point is aligned with the blasting point.

[0125] In addition, the perforation part (100) is moved to one of a plurality of blast hole planning points after perforating the first blast hole, and when the perforation point and the blast hole planning point coincide, the perforation operation control part (570) operates the perforation part (100) to perforate the blast hole to a preset perforation depth.

[0126] That is, the perforation part (100) can sequentially perforate multiple blasting hole locations while moving after perforating the first blasting hole.

[0127]

[0128] FIG. 4 is a flow chart illustrating one embodiment of a method for drilling a blast hole according to the present invention, and one embodiment of a method for drilling a blast hole according to the present invention will be described in detail below with reference to FIGS. 1, 2, and 4.

[0129] One embodiment of a method for drilling a blast hole according to the present invention is a method for drilling a blast hole by drilling a plurality of blast holes in a ground of a blasting site with a pre-designed drilling pattern using a drilling device equipped with a drilling part (100) for drilling blast holes in the ground of a blasting site on a moving vehicle, the method comprising: an information receiving step (S100) of receiving position information and angle information about a drilling part (100) installed on a vehicle; a drilling point display step (S200) of calculating coordinates of a drilling point drilled by the drilling part (100) at the blasting site using the position information and angle information received in the information receiving step (S100) and displaying the drilling point on a screen; a first blasting hole drilling step (S400) of drilling a first blasting hole at the blasting site; a drilling position display step (S500) of guiding a drilling position of a next blasting hole centered on a previously drilled blasting hole; a drilling part (100) moved by a moving vehicle and the drilling point displayed on the screen is displayed in the drilling position display step. It includes a drilling step (S600) of moving to match the indicated position and operating the drilling part (100) to drill a blast hole to a preset drilling depth.

[0130] The perforation point display step (S200) includes a center coordinate setting process (S210) in which the entire length of the perforation (100) is set as a radius and the uppermost point of the perforation (100) is set as a center coordinate by a position detection unit (300) located at the uppermost end of the perforation (100), a surface coordinate calculation process (S220) in which a reference sphere is created with the entire length of the perforation (100) as a radius based on the center coordinate set in the center coordinate setting process, and the surface coordinate corresponding to the end of the perforation (100) on the surface of the reference sphere is calculated at an angle inclined to the X-axis or Y-axis of the perforation (100) detected by the angle detection unit (400), and a perforation point display process (S230) in which the surface coordinate calculated in the surface coordinate calculation process is displayed on the screen.

[0131] The perforation point display step (S200) can accurately calculate the coordinates of the perforation point that change due to the tilted angle of the perforation part (100) through the center coordinate setting process (S210), the surface coordinate calculation process (S220), and the perforation point display process (S230), and accurately display the coordinates on the screen.

[0132] And, the perforation point display step (S200) uses GNSS to check in real time the change in the position and angle of the perforation part (100) moved by the moving vehicle and displays the perforation point on the screen.

[0133] The designed perforation pattern includes a perforation depth, a space interval, and a resistance line, and one embodiment of the method for perforating a blast hole according to the present invention further includes a perforation pattern information input step (not shown) for inputting information on the perforation depth, space interval, and resistance line before starting the blasting operation.

[0134] It is to be noted that the perforation pattern information input step involves the operator or work manager entering the perforation depth, spacing, and resistance line through an input device such as a keyboard or mouse or a keypad displayed on a touch screen, and may also be transmitted from the work management center via wireless communication.

[0135] The perforation pattern information input step allows the perforation pattern to be automatically designed at the blasting site by inputting information on not only perforation depth, space interval, and resistance line, but also the rows and columns of the pre-designed perforation pattern and the number of blast holes.

[0136] The perforation pattern information input step is performed before the perforation device is positioned at the blasting site or before the blasting hole perforation work is performed at the blasting site, so that the blasting hole perforation work can be accurately performed at the blasting site with the preset perforation pattern.

[0137] And, one embodiment of the method for drilling a blast hole according to the present invention further includes a reference drilling row display step (S300) of scanning a cliff line at a blasting site and displaying a reference drilling row on a screen in which the first blast hole is drilled using the scanned cliff line information, and a first blast hole drilling step (S400) aligns a drilling point on the reference drilling row displayed by the reference drilling row display step (S300) and then drills the first blast hole in the operation.

[0138] In more detail, the reference perforation row display step (S300) displays the reference perforation row at a distance equal to the resistance line from the cliff line in a line shape corresponding to the cliff line.

[0139] The standard perforation display step (S300) scans the cliff line using an RTK scan unit or a 3D camera, and scans the cliff line while moving along the cliff line.

[0140] The standard perforation display stage (S300) can scan the cliff line by having a worker hold and move a long work platform with an RTK scan unit or 3D camera connected to it, or by moving along the cliff line in a separate vehicle and scanning a portion of the cliff line with an RTK scan unit or 3D camera.

[0141] The reference perforation row display step (S300) displays the reference perforation row on the screen in a different color from the perforation point, the first guide line and the second guide line described below so that it can be distinguished from the perforation point, the first guide line and the second guide line.

[0142] The first blast hole drilling step (S400) operates the drill (100) in a state where the drilling point of the drill (100) is aligned with the standard drilling row to drill a blast hole to a preset depth.

[0143] In the first blast hole perforation step (S400), when the perforation point of the perforation part (100) matches the reference perforation row, the reference perforation row is displayed thicker and brighter or displayed in a different color so that the worker can more easily check the perforation work location of the perforation point.

[0144] The drilling position display step (S500) for guiding the drilling position of the next blast hole with the drilled blast hole as the center includes a first guide line display process for displaying a first circular guide line with the space interval as the radius with the reference blast hole as the center among the blast holes drilled with the drill hole (100) as the center, or a second guide line display process for displaying a second circular guide line with the resistance line as the radius with the reference blast hole as the center.

[0145] The first guide line marking process or the second guide line marking process marks the first guide line or the second guide line so as to have the same thickness as the diameter of the perforation point.

[0146] In addition, it can be easily confirmed that the perforation point has a diameter equal to the thickness of the first guide line or the thickness of the second guide line and is positioned to exactly match the first guide line or the second guide line.

[0147] The perforation step (S600) includes a first perforation process in which the perforation part (100) is moved by a mobile vehicle to align the perforation point with the line of the first guide line and perforate the same row of blast holes, or a second perforation process in which the perforation part (100) is moved by a mobile vehicle to align the perforation point with the line of the second guide line and perforate a row of blast holes different from the row of blast holes perforated by the first perforation process.

[0148] The second perforation process is, for example, to identify the point where two second guide lines, which are marked around two adjacent blast holes, overlap with the blast hole of another row, and then align the perforation point with the point where the two second guide lines overlap, and then perforate the blast hole.

[0149] In addition, in the first perforation process, when the perforation point is positioned to match the first guide line, the first guide line is displayed more thickly and brighter or in a different color, and in the second perforation process, when the perforation point is positioned to match the second guide line, the second guide line is displayed more thickly and brighter or in a different color, so that the operator can easily confirm that the perforation point is positioned to match the first or second guide line, and can accurately perform the perforation work of the blast hole at the positioned point.

[0150] FIG. 5 and FIG. 6 are drawings illustrating a screen of a blast hole design terminal (500) in one embodiment of a drilling device capable of automatically designing a blast hole according to the present invention. More specifically, FIG. 5 illustrates a first drilling process, and FIG. 6 illustrates a second drilling process.

[0151] Referring to FIG. 5, the first perforation process is to perforate a blast hole with a perforation part (100), and then display a first guide line (GL1) on the screen with the perforated blast hole (B) as the center, and move the perforation part (100) to the first guide line (GL1) with a moving vehicle, and when the perforation point (P) matches the first guide line (GL1), a blast hole is perforated through the perforation part (100) at the perforation point (P).

[0152] FIG. 6 shows a second perforation process in which a second guide line (GL2) is displayed on the screen in two blast holes (B1, B2) perforated in the same row by the first perforation process, and the perforation hole (100) is moved by a moving vehicle to a point (M) where the two second guide lines (GL2) overlap, and when the perforation point displayed on the screen matches the first guide line, a blast hole is perforated through the perforation hole (100) at the perforation point.

[0153]

[0154] Meanwhile, the first blast hole drilling step (S400) and the drilling step (S600) operate the drilling unit (100) to drill a blast hole in the ground, but drill the blast hole at a preset drilling depth, i.e., an input drilling depth.

[0155] And, the first blast hole drilling step (S400) and the drilling step (S600) calculate the actual drilling operation drilling depth (H2) by applying the sine value of the angle (θ) detected by the angle detection unit (400) to the preset drilling depth (H1), and drill the blast hole with the actual drilling operation drilling depth (H2).

[0156] In more detail, the perforation step (S600) calculates the actual perforation work perforation depth (H2) using the following mathematical formula.

[0157] [Mathematical formula]

[0158] H2= H1×1 / sinθ

[0159] For example, if the altitude (Altitude) of the blasting site before operation is 520M and the target altitude after blasting is 510M, the preset drilling depth (H1) of the blasting hole is 10M, and the actual drilling depth (H2) of the actual drilling operation is 10 / sin60°.

[0160] The first blast hole drilling step (S400) and the drilling step (S600) can accurately drill a blast hole to a preset depth by calculating the drilling depth using the angle (θ) detected by the angle detection unit (400).

[0161] In addition, the first blast hole drilling step (S400) and the drilling step (S600) further include a blast hole position saving process of storing the position of the drilled blast hole and outputting it on the screen, thereby accumulating and storing the position of the blast hole drilled by the drilling unit (100) and displaying it on the screen, thereby allowing a worker or work manager to check the status of the blast hole drilling work in real time at the blasting site, and thereby perform the blast hole drilling work more efficiently.

[0162]

[0163] Meanwhile, the perforation position display step (S500) further includes a blast hole pattern display process that automatically displays on the screen multiple blast hole locations to be perforated based on the first blast hole perforated according to preset columns and rows and the number of blast holes.

[0164] The blasting pattern display process automatically displays multiple blasting hole locations on the screen based on the first blasting hole based on the entered columns, rows, and number of blasting holes to be worked on at the blasting site, and the entered columns, rows, and number of blasting holes and the previously entered spacing and resistance lines, so that the worker can check multiple blasting hole locations displayed on the screen at once.

[0165] The blast hole pattern marking process is to mark the blast hole planned point with a circle of the same diameter as the perforation point, but with a different color from the perforation point, and can be matched with the perforation point indicated by the perforation part (100).

[0166] The blast hole pattern marking process is such that when the blast hole planned point matches the drilling point, the blast hole planned point is displayed brighter and larger, or is marked in a different color from the drilling point, so that the worker can easily confirm that the drilling point matches the blast hole planned point.

[0167] In addition, the perforation step (S600) moves to one of multiple blast hole planning points after perforating the first blast hole, and when the perforation point and the blast hole planning point match, the perforation part (100) is operated to perforate the blast hole to a preset perforation depth.

[0168] That is, the perforation step (S600) can sequentially perforate multiple blast hole locations while moving the perforation hole (100) after perforating the first blast hole.

[0169]

[0170] The present invention automatically and sequentially designates the positions of a plurality of blast holes to suit a blasting site in a situation where there is no drilling design, and allows a worker to check in real time the positions of the drilling holes (100) moved to the designated positions, and while maintaining the height-level custom design, space interval and air resistance line, accurately drills the blast holes with the drilling holes (100) at the designated positions, thereby significantly reducing the manpower, cost and time required for drilling the blast holes.

[0171] In addition, while existing accurate perforation design required multiple personnel due to topographical photography and topographical measurements, the present invention reduces the required personnel, eliminates the need for perforation workers to mark perforation points on site, and eliminates unnecessary boarding and disembarking from the drill, thereby increasing convenience and greatly improving safety during work as workers are not exposed to dangers on site.

[0172] The functional operations described in this specification and the embodiments of the present subject matter can be implemented in digital electronic circuits, computer software, firmware or hardware, or in a combination of one or more of these, including the structures disclosed herein and their structural equivalents.

[0173] Embodiments of the subject matter described herein may be implemented as one or more modules of a computer program product, i.e., one or more computer program instructions encoded on a tangible program medium for execution by or to control the operation of a data processing device. The tangible program medium may be a radio signal or a computer-readable medium. A radio signal is an artificially generated signal, such as a machine-generated electrical, optical, or electromagnetic signal, that is generated to encode information for transmission to a suitable receiver device for execution by a computer. The computer-readable medium may be a machine-readable storage device, a machine-readable storage substrate, a memory device, a combination of materials that affect a machine-readable radio signal, or a combination of one or more of these.

[0174] The description herein presents the best mode of the present invention, and provides examples to illustrate the invention and enable those skilled in the art to make and use the invention. The specification, as written, is not intended to limit the invention to the specific terms presented.

[0175] Accordingly, while the present invention has been described in detail with reference to the examples described above, those skilled in the art will appreciate that modifications, variations, and variations can be made to the examples without departing from the scope of the present invention. In short, it should be noted that in order to achieve the intended effects of the present invention, not all functional blocks depicted in the drawings must be separately included or all orders depicted in the drawings must be followed in the exact order shown, and that even if not, the technical scope of the present invention as set forth in the claims may be included.

Claims

1. A drill that drills holes in the ground using a drill that is rotated by a motor; A moving vehicle section having the above perforation portion and moving the above perforation portion; A position detection unit provided in the above perforation portion and detecting the position of the perforation portion using GNSS; An angle detection unit provided in the above perforation portion and detecting the angle of the perforation portion with respect to the flat surface; and A drilling device capable of automatically designing a blasting hole, characterized in that it includes a terminal for designing a blasting hole, which receives position information and angle information of the drilling hole from the position detection unit and the angle detection unit, displays the drilling point of the drilling hole moved to the moving vehicle unit and the blasting hole drilled by the drilling hole on the screen of the display unit, and displays a guide line of the space gap or resistance line on the screen based on a pre-stored space gap or resistance line.

2. In claim 1, The terminal for the above blasting hole design is, A drilling device capable of automatically designing a blast hole, characterized in that it further includes a drilling position calculation unit that receives position information and angle information, calculates a drilling point of the drilling part, and displays it on a screen.

3. In claim 2, The above position detection unit is located at the top of the perforation part, A drilling device capable of automatically designing a blast hole, characterized in that the drilling position calculating unit creates a reference sphere having the entire length of the drilling portion as a radius, the uppermost point of the drilling portion detected by the position detecting unit as the center, sets the uppermost point as the center coordinate of the reference sphere, and calculates the surface coordinates for the lower part of the drilling portion on the surface of the reference sphere at an angle inclined to the X-axis or Y-axis detected by the angle detecting unit.

4. In claim 2, A drilling device capable of automatically designing a blast hole, characterized in that the drilling position calculation unit reflects the position and angle of the drilling part in real time when the drilling part is moved by the moving vehicle unit and displays the change in the position of the drilling point on the screen of the display unit.

5. In claim 4, The terminal for the above blasting hole design is, A drilling device capable of automatically designing a blast hole, characterized in that it further includes a design information input section capable of inputting a drilling depth, a space interval (distance between blast holes), and a resistance line.

6. In claim 4, The terminal for the above blasting hole design is, A drilling device capable of automatically designing a blasting hole, characterized in that it further includes a drilling hole position storage unit that stores position information of a blasting hole drilled by the drilling unit and displays the position information of the drilled blasting hole on the screen of the display unit.

7. In claim 4, It further includes a cliff line scanning unit that scans the cliff line at the blasting site and provides cliff line information to the blasting hole design terminal. A drilling device capable of automatically designing a blast hole, characterized in that the terminal for designing the blast hole receives the cliff line information and further includes a reference drilling row display unit that displays the reference drilling row in which the first blast hole to be drilled is drilled, spaced apart from the cliff line by a distance of a previously input resistance line.

8. In claim 5, The above blast hole design terminal has a first guide line display unit that displays a first circular guide line with the space interval as the radius centered on the blast hole perforated on the screen using the input space interval information; and It further includes a second guide line display section that displays a second circular guide line with a resistance line as a radius centered on a blast hole perforated on the screen using resistance line information input through a design information input section. The above first guide line is a guide line that guides the positions of multiple blast holes that are operated in a row. A drilling device capable of automatically designing a blasting hole, characterized in that the second guide line is a guide line that guides the position of a blasting hole of another row in the blasting hole when working on a plurality of rows of blasting holes.

9. In claim 8, A drilling device capable of automatically designing a blast hole, characterized in that the first guide line display unit and the second guide line display unit display the first guide line and the second guide line in different colors.

10. In claim 8, The above first guide line display section is, When the perforation point that moves when the perforation part is moved by the moving vehicle part is positioned to match the first guide line, the first guide line is displayed thicker and brighter or displayed in a different color. A drilling device capable of automatically designing a blast hole, characterized in that the second guide line display unit displays the second guide line more thickly and brightly or displays it in a different color when the drilling point that moves when the drilling part is moved by the moving vehicle unit is positioned to match the second guide line.

11. In claim 6, The terminal for the above blasting hole design is, A drilling device capable of automatically designing a blast hole, characterized in that it further includes a communication data processing unit that wirelessly communicates with a blast hole design terminal equipped on another drilling device at the same blasting site, receives location information of a blast hole drilled by another drilling device, and selectively displays it on a screen.

12. In claim 7, The terminal for the above blasting hole design is, A drilling device capable of automatically designing blast holes, characterized in that it further includes a blast hole pattern automatic design unit that automatically displays on a screen multiple blast hole locations to be drilled based on the first blast hole drilled at a blasting site according to preset columns and rows, the number of blast holes, resistance lines, and spacing.

13. A method for drilling blast holes by drilling multiple blast holes in a pre-designed drilling pattern in the ground of a blasting site using a drilling device equipped with a drilling hole for drilling blast holes in the ground of a blasting site on a mobile vehicle. An information receiving step for receiving position information and angle information for the perforation portion using a position detection unit and an angle detection unit installed in the perforation portion; A perforation point display step for calculating the coordinates of a perforation point to be perforated at a blasting site using the position information and angle information received in the above information receiving step and displaying the perforation point on the screen; The first blast hole drilling stage, which drills the first blast hole at the blasting site; A drilling position indication step for guiding the drilling position of the next drilling hole based on the drilled drilling hole; and A method for drilling a blast hole, characterized in that it includes a drilling step of moving the drilling part with a mobile vehicle to match the drilling point displayed on the screen with the position indicated by the drilling position display step, and then operating the drilling part to drill a blast hole to a preset drilling depth.

14. In claim 13, The above perforation point display step is, A process for setting a center coordinate by setting the entire length of the above-mentioned perforation as a radius and the uppermost point of the perforation as the center coordinate by using the position detection unit located at the uppermost end of the above-mentioned perforation; A surface coordinate calculation process for generating a reference sphere with a radius equal to the entire length of the perforation based on the center coordinate set in the above center coordinate setting process, and calculating surface coordinates corresponding to the end of the perforation on the surface of the reference sphere based on the angle of inclination toward the X-axis or Y-axis of the perforation detected by the angle detection unit; and A method for drilling a blast hole, characterized in that it includes a drilling point display process for displaying the surface coordinates calculated in the above surface coordinate calculation process on the screen.

15. In claim 13, The above-mentioned perforation point display step uses GNSS to check in real time the change in the position and angle of the perforation part moved by the moving vehicle and displays the perforation point on the screen. A method for drilling a blast hole, characterized in that it further includes a drilling pattern information input step for inputting information on drilling depth, space interval, and resistance line before starting a blasting operation.

16. In claim 13, The method further includes a step of displaying a reference perforation row for scanning a cliff line at a blasting site before the first blast hole drilling step and displaying a reference perforation row for the first blast hole drilled on a screen using the scanned cliff line information. A method for drilling a blast hole, characterized in that the first blast hole drilling step is performed by drilling the first blast hole at a blasting site after aligning the drilling point on the reference drilling row indicated by the reference drilling row display step.

17. In claim 15, The above perforation position indication step is, A method for drilling a blast hole, characterized in that it includes a first guide line display process for displaying a first circular guide line having a radius of a preset space interval centered on a reference blast hole among blast holes drilled by the above-mentioned drilling part, or a second guide line display process for displaying a second circular guide line having a radius of a resistance line centered on the reference blast hole.

18. In claim 17, A method for drilling blast holes, characterized in that the drilling step includes a first drilling process of drilling the same row of blast holes by moving the drilling part with a mobile vehicle to align the drilling point with a line of a first guide line, or a second drilling process of drilling a row of blast holes different from the row of blast holes drilled by the first drilling process by moving the drilling part with a mobile vehicle to align the drilling point with a line of a second guide line.

19. In claim 18, A method for drilling a blast hole, characterized in that the first drilling process displays the first guide line more thickly and brightly or in a different color when the drilling point is positioned to align with the first guide line, and the second drilling process displays the second guide line more thickly and brightly or in a different color when the drilling point is positioned to align with the second guide line.

20. In claim 16, A method for drilling blast holes, characterized in that the above drilling position display step further includes a drilling pattern display process for automatically displaying on a screen a plurality of planned drilling locations based on preset columns and rows, number of drilling holes, spacing, and resistance lines based on the first drilled drilling hole.

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