KR102614275B1 - Imitation marble cutting device - Google Patents

Abstract

The present invention relates to an artificial marble cutting device, and specifically, a lathe that supports the cutting object and limits the cutting object to remain horizontal from the ground, a workbench that supports the shelf from the ground, the upper surface of the workbench and the lower surface of the shelf. It includes a guide part located between the shelves, which guides the lathe to move horizontally based on the upper surface of the workbench, and a cutting machine located on the upper surface of the lathe, which cuts the cutting object.

Description

Artificial marble cutting device {IMITATION MARBLE CUTTING DEVICE}

The present invention relates to an artificial marble cutting device, and more specifically, to a technology that, when cutting marble, forms an angle at the edge of the marble and limits the cutting position of the marble by combining a marking hole on a lathe and a pin. .

In the conventional marble assembly work of connecting separate marble pieces, cutting the edge of the marble piece to have an angle of 25 degrees to 45 degrees is an essential task.

However, in this work, after cutting the marble according to the design or producing artificial marble according to the mold, additional work to shape the edges for assembly is essential. At this time, when working by placing the marble on the lathe, As there are limitations in manually limiting the spacing and 3-axis angle between the marble and the cutting machine (a component that performs cutting for cutting, such as a saw), there has been a problem of a high discard rate of incorrectly cut marble.

Meanwhile, the matters described as background technology above are only for the purpose of improving understanding of the background of the present invention, and should not be taken as recognition that they correspond to prior art already known to those skilled in the art. will be.

Registered Patent Publication No. 10-1844793, 2018.03.28.

The problem to be solved by the present invention is to cut artificial marble to form an angle at the edge of the marble by adjusting the angle of the cutter, and to limit the distance and angle from the cutter to the cutting position of the marble on the lathe. The device is provided.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

In the artificial marble cutting device according to one aspect of the present invention for solving the above-described problem, a shelf that supports the cutting object and limits the cutting object to remain horizontal from the ground, a workbench that supports the shelf from the ground, A guide unit located between the upper surface of the workbench and the lower surface of the lathe, which guides the lathe to move horizontally based on the upper surface of the workbench, and a cutter located on the upper surface of the lathe, which cuts the cutting object, and a lathe. It further includes a display member displayed on the upper surface of the shelf to indicate the horizontal distance from one surface in contact with the cutting machine, and the cutting object is fixed to a point with respect to the display member by at least one pin. It is characterized by

In addition, the guide part is located on the upper surface of the workbench and is fixed to the lower surface of the sliding bar and shelf, which is horizontal to the cutting direction of the cutting machine, and is located at a position corresponding to the sliding bar, and has a groove into which the sliding bar is fitted. It further includes a handle fixed to the lower surface of the shelf, a rail on which the sliding bar slides, and controlling the movement of the shelf by inducing sliding of the sliding bar on the rail according to the direction of the applied force, The sliding bar and rail may each be composed of at least one piece.

Additionally, the display member has a plurality of first display holes, which are perforated on the shelf and indicate the horizontal distance from one surface in contact with the cutting machine in a certain unit, and each of the plurality of first display holes has a predetermined angle and It further includes a plurality of second display holes arranged to indicate a vertical distance, wherein the display member is repeatedly arranged at regular vertical intervals, and the pin is one of the plurality of first display holes and the plurality of second display holes. It may be characterized in that one side is inserted and coupled to one display hole.

Additionally, the cutting machine includes a cutting member, a part of which is inserted into the workbench and the other side exposed to the outside of the workbench, and which cuts the cutting object located on the upper surface of the lathe by rotational force, and a rotating shaft that transmits the rotational force to the cutting member. , further comprising a shaft support that supports the rotation shaft and transmitting power to the rotation shaft, and the workbench further includes a cutting groove into which the shaft support is coupled and a portion of the rotation shaft, the shaft support, and the cutting member are inserted, The artificial marble cutting device includes a motor that generates power when power is applied, and a control unit that provides power generated from the motor to the rotating shaft through the shaft support and controls the position of the rotating shaft and the angle between the rotating shaft and the shelf. More may be included.

Additionally, the control unit controls the shaft support and applies power to the angle adjustment member, which controls the degree of inclination of the rotation axis, the angle instrument panel, which visualizes the angle of the cutting member according to the degree of inclination of the rotation axis, and the motor. It may further include a power button.

Additionally, the artificial marble cutting device further includes a sensor unit that senses pressure, illuminance, and impact for each of the plurality of first display holes and the plurality of second display holes, and the control unit detects the plurality of first display holes. , coordinates on the shelf for each of the plurality of second display holes, and a memory including the density of the artificial marble, and a processor, wherein the processor determines the area of the cutting object based on the signal obtained from the sensor unit. , and weight are calculated, the thickness of the cutting object is calculated based on the density, area, and weight of the artificial marble, the rotation speed proportional to the thickness is calculated, and the motor is controlled based on the rotation speed, and the sensor unit , It may be characterized by sensing only pressure that exceeds the pressure caused by the pin.

Additionally, based on the signal acquired from the sensor unit, the processor identifies at least one first coordinate where pressure occurred and at least one second coordinate where the illuminance differed from another adjacent display hole by exceeding a threshold. Then, a first map according to the first coordinates and a second map according to the second coordinates are generated, and the first map and the second map are compared, and at least one third coordinate where a difference occurs is identified. If so, the operation of the motor may be restricted until the third coordinate is identified.

Additionally, the control unit further includes a communication unit that communicates with at least one terminal, and the processor, when the third coordinate is identified, determines the shortest distance between the third coordinate and the area where pressure occurred included in the first map. Calculated, if the shortest distance exceeds the critical distance but is less than a certain distance, the operation of the motor is restricted until the third coordinate is identified, and if the shortest distance exceeds a certain distance, it is sent to the worker terminal through the communication unit. 3 It may be characterized by providing coordinates and authorizing the operation of a motor.

Other specific details of the invention are included in the detailed description and drawings.

According to the artificial marble cutting device of the present invention, it is possible to cut the edge of marble to form an angle, and it is possible to cut the edge according to the purpose, not limited to use for assembly or marble plate, and at the same time, cut the marble from the cutting machine. It is possible to limit the distance and angle to the location, thereby performing accurate cutting, which has the effect of preventing discarding due to inaccurate cutting.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a configuration diagram of an artificial marble cutting device according to an embodiment of the present disclosure.
Figure 2 is a cutting state diagram according to an embodiment of the present disclosure.
Figure 3 is a state diagram of cutting machine angle adjustment according to an embodiment of the present disclosure.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to provide a general understanding of the technical field to which the present invention pertains. It is provided to fully inform the skilled person of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements. Like reference numerals refer to like elements throughout the specification, and “and/or” includes each and every combination of one or more of the referenced elements. Although “first”, “second”, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

The “unit” used in the specification refers to a hardware component, and the “unit” performs certain roles. However, “wealth” is not limited to hardware.

Spatially relative terms such as “below”, “beneath”, “lower”, “above”, “upper”, etc. are used as a single term as shown in the drawing. It can be used to easily describe the correlation between a component and other components. Spatially relative terms should be understood as terms that include different directions of components during use or operation in addition to the directions shown in the drawings. For example, if you flip a component shown in a drawing, a component described as "below" or "beneath" another component will be placed "above" the other component. You can. Accordingly, the illustrative term “down” may include both downward and upward directions. Components can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a configuration diagram of an artificial marble cutting device 100 according to an embodiment of the present disclosure.

As shown in FIG. 1, the artificial marble cutting device 100 includes a shelf 110, a workbench 120, a guide part (illustrated rails 131a and 131b, sliding bars 132a and 132b), and a handle ( 133), and a cutter 140.

The shelf 110 supports the cutting object 1 and limits the cutting object 1 to remain horizontal from the ground.

The work table 120 supports the shelf 110 from the ground.

The guide unit is located between the upper surface of the worktable 120 and the lower surface of the shelf 110 and guides the shelf 110 to move horizontally based on the upper surface of the worktable 120.

Specifically, the guide unit includes rails 131a, 131b, sliding bars 132a, 132b, and a handle 133), and a cutter 140, and includes sliding bars 132a, 132b, and rails 131a. , 131b) are each at least one (as shown in FIGS. 1 and 2, a pair in which one sliding bar 132a and one rail 131a are combined), that is, at least one pair. It can be configured.

The sliding bars 132a and 132b are located on the upper surface of the work table 120 and are horizontal to the cutting direction of the cutting machine 140.

The rails 131a and 131b are fixed to the lower surface of the shelf 110, are located at positions corresponding to the sliding bars 132a and 132b, and include grooves into which the sliding bars 132a and 132b are fitted, and are used for sliding. Bars 132a and 132b slide.

The handle 133 is fixed to the lower surface of the shelf 110 and induces sliding of the sliding bars 132a and 132b on the rails 131a and 131b according to the direction of the applied force, thereby moving the shelf 110. Control movement.

The cutting machine 140 cuts the cutting object 1 located on the upper surface of the shelf 110.

Figure 2 is a cutting state diagram according to an embodiment of the present disclosure.

As shown in FIGS. 1 and 2 , the shelf 110 further includes a display member displayed on the upper surface of the shelf 110 to indicate the horizontal distance from one surface in contact with the cutter 140.

Accordingly, as shown in FIG. 2, the cutting object 1 may be fixed to a point with respect to the display member by at least one pin 10.

Specifically, the display member may include a plurality of first display holes and a plurality of second display holes.

Each of the plurality of first display holes is perforated in the shelf 110 to indicate the horizontal distance from one surface in contact with the cutter 140 in a certain unit.

The plurality of second display holes are arranged so that each indicates a certain angle and vertical distance with respect to each of the plurality of first display holes.

In addition, as shown in FIGS. 1 and 2, the display members are repeatedly arranged at regular vertical intervals, and as shown in FIG. 2, the pins 10 have a plurality of first display holes and a plurality of One side is inserted into and coupled to any one of the second display holes, and the other side protrudes out of the display hole, so that the cutting object 1 does not deviate from the cutting position, which is the position indicated by the pin. The position of the object (1) can be limited according to the display hole.

For example, on the upper surface of the shelf 110, numbers indicating the distance from the cutter 140 from the side adjacent to the cutter 140 to the symmetrical side (longitudinal direction) may be double marked at intervals of 1cm and 10cm, , first display holes are located at 1cm intervals, and approximately 10 second display holes are located in the transverse direction from the first display hole, spaced apart from the first display hole at 1cm intervals, and arranged at an angle of 15 degrees. can be located

Accordingly, a plurality of first display holes forming one row in the longitudinal direction and about 10 second display holes formed for each of the plurality of first display holes are paired, and are spaced apart at equal intervals in the horizontal direction. A plurality of pairs may be located on the upper surface of the shelf 110.

Figure 3 is a state diagram of angle adjustment of the cutter 140 according to an embodiment of the present disclosure.

As shown in FIGS. 1 to 3, the cutting machine 140 is a cutting machine located on the upper surface of the shelf 110 with a part inserted into the work table 120 and the other side exposed to the outside of the work table 120. It includes a cutting member that cuts the object 1 using rotational force.

In addition, although not shown, the cutter 140 may include a rotation shaft that transmits rotational force to the cutting member, and a shaft support that supports the rotation shaft and transmits power to the rotation shaft.

To this end, as shown in FIGS. 1 to 3, the work table 120 may include a cutting groove into which a shaft support is coupled and a portion of the rotation axis, the shaft support, and the cutting member are inserted.

In addition, the artificial marble cutting device 100 provides a motor that generates power when power is applied, and the power generated from the motor to the rotation shaft through the shaft support, and determines the position of the rotation shaft and the rotation shaft and the shelf 110. It may further include a control unit that controls the angle between the liver.

Specifically, as shown in FIG. 3, the control unit may include an angle adjustment member 141, an angle gauge panel 142, and a power button 143.

The angle adjustment member 141 controls the axis support to adjust the degree of inclination of the rotation axis, so that the blade of the cutter 140 is tilted toward the lathe 110 or tilts toward the lathe 110, as shown in FIG. 3. ) and perpendicular to each other, and accordingly, the edge of the cutting object 1, that is, the peripheral surface, can be cut at an angle.

The angle instrument panel 142 visualizes the angle of the cutting member according to the degree of inclination of the rotation axis.

The power button 143 applies power to the motor.

Meanwhile, the artificial marble cutting device 100 may further include a sensor unit that senses pressure, illuminance, and impact for each of the plurality of first display holes and the plurality of second display holes.

The sensor unit only senses pressure that exceeds the pressure caused by the pin 10, that is, the pressure caused by the pin 10 can be ignored, but is not limited to this.

The sensor unit may include a pressure sensor, an illuminance sensor, a vibration sensor, etc., and the illuminance sensor senses the illuminance inside each display hole (a plurality of first display holes and a plurality of second display holes). can do.

Accordingly, the control unit may further include a memory including coordinates on the shelf 110 for each of the plurality of first display holes and the plurality of second display holes, and the density of the artificial marble, and a processor.

At this time, the control unit is used in devices such as servers, smartphones, tablet personal computers, laptop PCs, netbook computers, laptop computers, and wearable devices. It may include an electronic device, be connected to an electronic device, and be implemented through a memory and a processor of the electronic device.

Meanwhile, the memory can store various programs and data necessary for the operation of the control unit. Memory can be implemented as non-volatile memory, volatile memory, flash-memory, hard disk drive (HDD), or solid state drive (SSD).

Additionally, the control unit may further include a communication unit that communicates with at least one terminal.

The communication unit can perform communication with external devices. In particular, the communication unit may include various communication chips such as a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, an NFC chip, and a low-energy Bluetooth chip (BLE chip). At this time, the Wi-Fi chip, Bluetooth chip, and NFC chip communicate in the LAN method, WiFi method, Bluetooth method, and NFC method, respectively. When using a Wi-Fi chip or Bluetooth chip, various connection information such as SSID and session key are first transmitted and received, and various information can be transmitted and received after establishing a communication connection using this. A wireless communication chip refers to a chip that performs communication according to various communication standards such as IEEE, ZigBee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), and 5G (5th Generation).

The processor can control the overall operation of the control unit using various programs stored in memory. The processor may be composed of RAM, ROM, graphics processing unit, main CPU, first to n interfaces, and bus. At this time, RAM, ROM, graphics processing unit, main CPU, first to n interfaces, etc. may be connected to each other through a bus.

RAM stores O/S and application programs. Specifically, when the control unit is booted, the O/S is stored in RAM, and various application data selected by the user can be stored in RAM.

ROM stores a set of instructions for booting the system. When the turn-on command is input and power is supplied, the main CPU copies the O/S stored in memory to RAM according to the command stored in ROM, executes the O/S, and boots the system. When booting is complete, the main CPU copies various application programs stored in memory to RAM and executes the application programs copied to RAM to perform various operations.

The graphics processing unit uses a calculation unit (not shown) and a rendering unit (not shown) to create a screen containing various objects such as items, images, and text. Here, the calculation unit may be configured to calculate attribute values such as coordinate values, shape, size, color, etc. for each object to be displayed according to the layout of the screen using a control command received from the input unit. Additionally, the rendering unit may be configured to generate screens of various layouts including objects based on attribute values calculated by the calculation unit. The screen generated by this rendering unit may be displayed within the display area of the display.

The main CPU accesses memory and performs booting using the OS stored in the memory. And, the main CPU performs various operations using various programs, content, data, etc. stored in memory.

The first to n interfaces are connected to the various components described above. One of the first to n interfaces may be a network interface connected to an external device through a network.

Meanwhile, the processor may include one or more cores (not shown), a graphics processing unit (not shown), and/or a connection passage (for example, a bus, etc.) for transmitting and receiving signals to and from other components.

A processor according to one embodiment performs the method described in connection with the present invention by executing one or more instructions stored in memory.

For example, the processor acquires new training data by executing one or more instructions stored in memory, performs a test on the acquired new training data using a learned model, and the test result, labeled information Extract first learning data obtained with an accuracy greater than a predetermined first reference value, delete the extracted first learning data from the new learning data, and use the new learning data from which the extracted learning data has been deleted. The learned model can be retrained.

Meanwhile, the processor further includes RAM (Random Access Memory, not shown) and ROM (Read-Only Memory, not shown) that temporarily and/or permanently store signals (or data) processed inside the processor. It can be included. Additionally, the processor may be implemented in the form of a system on chip (SoC) that includes at least one of a graphics processing unit, RAM, and ROM.

Programs (one or more instructions) for processing and controlling the processor can be stored in the memory. Programs stored in memory can be divided into a plurality of modules according to their functions.

Accordingly, the control unit calculates the area and weight of the cutting object (1) based on the signal obtained from the sensor unit, and the thickness of the cutting object (1) based on the density, area, and weight of the artificial marble. can be calculated, the rotational speed proportional to the thickness can be calculated, and the motor can be controlled based on the rotational speed.

In an embodiment, the control unit, based on the signal acquired from the sensor unit, determines at least one first coordinate where the pressure occurred and at least one second coordinate where the illuminance differs from that of another adjacent display hole by exceeding a threshold value. By identification, a first map according to the first coordinates and a second map according to the second coordinates can be generated, respectively.

At this time, when at least one third coordinate in which a difference occurs by comparing the first map and the second map is identified, the control unit may restrict the operation of the motor until the third coordinate is identified.

Specifically, the first map generated based on pressure is data on the portion where the cutting object 1 is placed on the shelf 110 and pressure occurs, and the second map generated based on illumination is data on the shelf 110 ) may be data about the positions of the marking holes where the edge of the cutting object 1 is located and at least one marking hole to which the pin is each coupled.

Accordingly, the control unit identifies the points and lines included in the second map, and when at least one of the coordinates of the point and the open line (a line that does not form a shape) is identified, the pressure included in the first map occurs. Using the coordinates of the edge of the area as the target, it can be determined whether there are inconsistent coordinates among the coordinates (e.g., coordinates of a point and coordinates forming a line) included in the second map.

When third coordinates that are inconsistent coordinates are identified, the shortest distance between the third coordinates and the area where pressure occurred included in the first map can be calculated.

At this time, the certain distance, which is the criterion for determining the shortest distance, may be a value proportional to the area of the altar object 1.

If the shortest distance exceeds the critical distance but is less than a certain distance, the control unit determines that the altar object (1) has deviated from the altar position on the shelf (110) defined by the pin (10), and the third coordinate is identified. The operation of the motor can be restricted until

For example, when the operator sets the distance and angle between the cutting machine 140 and the cutting object 1 through the pin 10, the cutting object 1 must be positioned on the upper surface of the lathe 110 in contact with the pin 10. Therefore, all coordinates included in the second map must match the edge of the area where pressure occurred included in the first map, or must be located within a critical distance based on the error range from the edge of the area where pressure occurred included in the first map. do.

Therefore, if the shortest distance exceeds the critical distance but is less than a certain distance, it is determined that the cutting position of the cutting object (1) is wrong, and the control unit can stop the cutting work by stopping the motor to prevent defective products from occurring. there is.

On the other hand, in the embodiment, when the shortest distance exceeds a certain distance, the control unit determines that a pin (1) unnecessary for limiting the position of the cutting object (1) is coupled to the display hole or a foreign substance is inserted into the display hole. Thus, the third coordinates can be provided to the worker terminal through the communication unit, and the operation of the motor can be authorized.

In this specification, a computer refers to all types of hardware devices including at least one processor, and depending on the embodiment, it may be understood as encompassing software configurations that operate on the hardware device. For example, a computer can be understood to include, but is not limited to, a smartphone, tablet PC, desktop, laptop, and user clients and applications running on each device.

Different embodiments of the present invention may complement or be combined with each other.

Above, embodiments of the present invention have been described with reference to the attached drawings, but those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

1: Foundation target
10: pin
100: Artificial marble cutting device
110: shelf
120: workbench
131a, 131b: rail
132a, 132b: sliding bar
133: handle
140: cutting machine
141: Angle adjustment member
142: Angle instrument panel
143: Power button

Claims (8)

In the artificial marble cutting device,
a shelf supporting the cutting object and constraining the cutting object to remain level from the ground;
a workbench supporting the shelf from the ground;
a guide unit located between the upper surface of the work table and the lower surface of the shelf, and guiding the shelf to move horizontally based on the upper surface of the work table; and
It includes a cutting machine located on the upper surface of the shelf, for cutting the cutting object,
The shelf is,
It further includes a display member displayed on the upper surface of the shelf to indicate the horizontal distance from one surface in contact with the cutting machine,
The target of the foundation is:
It is fixed to a point with respect to the display member by at least one pin,
The display member is,
a plurality of first display holes formed in the shelf to indicate a horizontal distance from a surface in contact with the cutter in a predetermined unit; and
It further includes a plurality of second display holes arranged to indicate a certain angle and vertical distance to each of the plurality of first display holes,
The display member is,
Arranged repeatedly at regular vertical intervals,
The pin is,
One side is inserted and coupled to any one of the plurality of first display holes and the plurality of second display holes,
The cutting machine,
A cutting member, a part of which is inserted into the workbench and the other side exposed to the outside of the workbench, cuts the cutting object located on the upper surface of the lathe using rotational force;
a rotation axis that transmits rotational force to the cutting member;
It further includes a shaft support that supports the rotating shaft and transmits power to the rotating shaft,
The workbench,
It further includes a cutting groove into which the shaft support is coupled and a portion of the rotation shaft, the shaft support, and the cutting member are inserted,
The artificial marble cutting device,
A motor, which generates power when power is applied; and
It further includes a control unit that provides power generated from the motor to the rotation shaft through the shaft support and controls the position of the rotation shaft and the angle between the rotation shaft and the shelf,
The artificial marble cutting device,
It further includes a sensor unit that senses pressure, illuminance, and impact for each of the plurality of first display holes and the plurality of second display holes,
The control unit,
a memory including coordinates on the shelf for each of the plurality of first display holes and the plurality of second display holes, and a density of artificial marble; and
It further includes a processor;
The processor,
Based on the signal obtained from the sensor unit, calculate the area and weight of the cutting object,
Calculate the thickness of the cutting object based on the density, area, and weight of the artificial marble,
Calculating a rotational speed proportional to the thickness and controlling the motor based on the rotational speed,
The sensor unit,
An artificial marble cutting device, characterized in that it senses only the pressure exceeding the pressure caused by the pin. According to claim 1,
The guide part,
A sliding bar located on the upper surface of the workbench and forming a horizontal direction with the cutting direction of the cutting machine;
a rail fixed to the lower surface of the shelf, located at a position corresponding to the sliding bar, including a groove into which the sliding bar is fitted, and on which the sliding bar slides; and
It further includes a handle fixed to the lower surface of the shelf and controlling the movement of the shelf by inducing sliding of the sliding bar on the rail according to the direction of the applied force,
The sliding bar and the rail,
An artificial marble cutting device, each comprising at least one device. delete delete According to claim 1,
The control unit,
An angle adjustment member that controls the shaft support to adjust the degree of inclination of the rotation shaft;
An angle dashboard that visualizes the angle of the cutting member according to the degree of inclination of the rotation axis; and
An artificial marble cutting device further comprising a power button for applying power to the motor. delete According to claim 1,
The processor,
Based on the signal obtained from the sensor unit, identify at least one first coordinate where pressure occurred and at least one second coordinate where illuminance differed from another adjacent display hole by exceeding a threshold,
Generating a first map according to the first coordinates and a second map according to the second coordinates, respectively,
Artificial marble, characterized in that by comparing the first map and the second map, if at least one third coordinate where a difference occurs is identified, the operation of the motor is restricted until the third coordinate is identified. Foundation device. According to clause 7,
The control unit,
It further includes a communication unit that communicates with at least one terminal,
The processor,
When the third coordinate is identified, the shortest distance between the third coordinate and the area where pressure occurred included in the first map is calculated, and if the shortest distance exceeds the threshold distance but is less than a certain distance, the third coordinate Limiting the operation of the motor until the coordinates are identified,
When the shortest distance exceeds a certain distance, the third coordinate is provided to the worker terminal through the communication unit and the operation of the motor is applied.