KR20180135502A - Satefy warning device of construction machinery - Google Patents

Abstract

The present invention relates to a danger warning device of construction machinery, comprising: a sensor unit disposed in the construction machinery to detect an object or person around the construction machinery; and a dangerous area display unit disposed in the construction machinery and displaying a dangerous zone pattern around the construction machinery. The dangerous zone display unit comprises: a laser beam generation unit to irradiate a laser beam for displaying the dangerous zone pattern to the ground surface around the construction machinery in accordance with a detection result of the sensor unit; and a mounting unit mounted on the construction machinery to adjust a tilting angle of the laser beam generation unit with respect to the construction machinery. According to one embodiment of the present invention, the danger warning device of construction machinery warns a person around the construction machinery of the presence within a dangerous zone of the construction machinery and thus an accident is able to be prevented.

Description

TECHNICAL FIELD The present invention relates to a danger warning device for a construction machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a danger warning device, and more particularly, to a danger warning device for a construction machine capable of detecting an object or a person approaching the periphery of a construction machine during operation or running, .

Construction machines are used in work phenomena where noise and dust are generated a lot, such as large-scale civil engineering construction such as road, airport, complex construction. Construction machines used in these work sites are heavily used for large vehicles such as bulldozers, excavators, loaders, forklifts, and dump trucks.

In the case of an excavator of a construction machine, it is combined with an upper body and an upper body rotatable 360 degrees, and a lower body for traveling of the excavator is coupled. At this time, the upper body is provided with a boom, an arm, a bucket, and the like for working the excavator, so that the turning radius of the upper body is much larger than that of other construction machines. Therefore, . That is, even if another worker is working in the work area of the excavator, or objects such as other construction machinery equipment are located, the driver of the excavator can not easily recognize it, and there is a risk that a safety accident occurs due to sudden turning to the left or right, have.

Accordingly, the excavator shall prohibit the turning operation when there is a person in the work area in accordance with the excavator safety regulations, and shall take measures to prevent other workers or pedestrians from entering the excavator. Also, in order to secure the safety distance between the excavator and the pedestrian, a warning such as "danger, approach in the working radius" is attached to the back of the oyster.

On the other hand, a video device such as a camera is mounted on an excavator to see the presence of a person or object around the excavator when the driver views the monitor provided in the excavator cab, and a warning sound is generated when a person or object exists.

In recent years, a peripheral monitoring apparatus such as an Around-View is attached to an excavator to grasp surrounding image information including a blind spot of an excavator.

However, these devices are not for pedestrians or other workers around the excavator, but for the driver of the excavator. If the driver of the excavator can not identify pedestrians or other workers around the excavator due to external noise or other environmental factors, there is a risk that safety accidents such as pedestrian injuries may occur.

In addition, the driver of the excavator can grasp pedestrians or other workers around the excavator in advance through a separate device, but pedestrians and other workers around the excavator have difficulties in visually identifying what the excavator is doing.

Accordingly, the present applicant has proposed the present invention in order to solve the above-mentioned problems, and related prior art documents include Korean Patent Publication No. 10-2010-0076421 (entitled " , Publication date: December 26, 2008).

An object of the present invention is to provide a danger warning device for a construction machine capable of preventing a safety accident by warning a worker or a pedestrian around a construction machine to indicate a dangerous area pattern on a periphery of a construction machine, .

Another object of the present invention is to provide a danger warning device for a construction machine capable of promptly informing a worker or a pedestrian around a construction machine of a working state of a construction machine by changing a dangerous area pattern displayed on the ground according to the operation state of the construction machine .

It is still another object of the present invention to provide a danger warning device for a construction machine capable of recognizing an object or person around a work of a construction machine and preventing an unnecessary warning by changing an operation or warning mode depending on the situation.

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

According to the present invention, the above object can be accomplished by providing a sensor unit for detecting objects or people around a construction machine, And a danger zone display unit provided on the construction machine, wherein the danger zone display unit displays a hazard zone pattern on the periphery of the construction machine when an object or a person is detected by the sensor unit. Wherein the dangerous zone display unit comprises: a laser beam generating unit for irradiating a laser beam for displaying the dangerous area pattern on the periphery of the construction machine according to the detection result of the sensor unit; And a mounting unit mounted on the construction machine for adjusting a tilting angle of the laser beam generating unit with respect to the construction machine.

The laser beam generating unit includes: a main body coupled to the mounting unit; A light source module provided inside the main body and generating a laser beam; A reflecting member provided in the main body so as to face the light source module and reflecting a laser beam generated from the light source module; And a reflection member driving unit for adjusting a tilt of the reflection member.

The mounting unit comprising: a mounting frame for positioning the laser beam generating unit on one side of the construction machine; And a frame driving unit coupled to the mounting frame for adjusting a tilt or a tilting angle of the laser beam generating unit with respect to the construction machine.

Wherein the control unit controls the frame driving unit according to the tilt of the construction machine relative to the ground to tilt the laser beam generating unit in the left or right direction Or the angle of rotation, or the rotational speed of the reflecting member may be changed by controlling the reflecting member driving unit according to the inclination of the construction machine or the angle at which the laser beam generating unit is tilted.

One end of the frame driving part is coupled to the mounting frame, and the main body is provided with a discharge port for discharging the laser beam generated from the light source module toward the outside of the main body.

The discharge port may be formed in an open form or may be covered with a transparent material.

The inner circumferential surface of the main body may be formed in a concavo-convex shape so that the laser beam generated from the light source module is scattered inside the main body.

The position of the discharge port may vary depending on the position, range, or size of the hazardous area pattern to be displayed on the periphery of the construction machine.

The discharge port may be formed to have a different height according to a position of the discharge port.

The danger warning device of the construction machine of the present invention can prevent a safety accident in advance by warning a person around the construction machine to exist in a dangerous area of the construction machine.

The danger warning device of the construction machine of the present invention minimizes the occurrence of unnecessary warning by changing the shape and position of the dangerous area pattern according to the running or working state of the construction machine, Of the vehicle.

In addition, the danger warning device of the construction machine of the present invention detects the dangerous area pattern on the ground by sensing the operator or the pedestrian, even if the driver of the construction machine does not inform the operator or the pedestrian around the construction machine of the danger, The operator or the pedestrian can immediately sense the danger.

Furthermore, since the danger warning device of the construction machine of the present invention displays a visually perceptible hazardous area pattern on the ground around the construction machine by using a laser beam, it is possible to provide a worker or a pedestrian around the construction machine environment You can warn of the danger regardless of the effect.

Further, the danger warning device of the construction machine of the present invention detects and compensates for the inclined state or angle of the construction machine or the danger warning device with respect to the horizontal reference plane, so that the construction machine or the danger warning device Since it is possible to display a certain dangerous area pattern centered on a construction machine, it is possible to prevent an accident that an operator or a pedestrian is injured due to a dangerous area pattern that is displayed incorrectly.

1 is a block diagram illustrating a configuration of a risk warning device for a construction machine according to an embodiment of the present invention.
2 is a view for explaining a safety distance of a danger warning device of a construction machine and a recognition area of a sensor unit according to an embodiment of the present invention.
3 is a perspective view showing the dangerous area display unit shown in Fig.
4 is a view for explaining a laser beam generating unit of the dangerous area display unit according to FIG.
Fig. 5 is a view for explaining the main body of the laser beam generating unit of the dangerous zone display unit according to Fig. 3;
FIG. 6 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in FIG. 2 is stopped and in operation.
FIG. 7 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in FIG. 2 is turned to the right.
FIG. 8 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in FIG. 2 turns to the left.
FIG. 9 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in FIG. 2 is reversed. FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures are shown exaggerated or reduced in size for clarity and convenience in the figures, and any dimensions are merely illustrative and not restrictive. And to the same structure, element or component appearing in more than one drawing, the same reference numerals are used to denote similar features.

The embodiments of the present invention specifically illustrate ideal embodiments of the present invention. As a result, various variations of the drawings are expected. Thus, the embodiment is not limited to any particular form of the depicted area, but includes modifications of the form, for example, by manufacture.

Hereinafter, a danger warning device 100 (hereinafter, referred to as a 'danger warning device') according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram for explaining the construction of a danger warning device of a construction machine according to an embodiment of the present invention. FIG. 2 is a view showing a safety distance of a danger warning device of a construction machine according to an embodiment of the present invention, FIG. 3 is a perspective view showing a dangerous area display unit shown in FIG. 1, FIG. 4 is a view for explaining a laser beam generating unit of the dangerous zone display unit according to FIG. FIG. 6 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in FIG. 2 is stopped and in operation; FIG. 7 is a view for explaining a dangerous area pattern 2 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in Fig. 2 is turned to the right, Fig. 8 is a diagram for explaining a dangerous area pattern displayed on the ground when the construction machine shown in Fig. FIG. 9 is a view for explaining a dangerous area pattern displayed on the ground when the construction machine shown in FIG. 2 is reversed. FIG.

1 to 9, a danger warning apparatus 100 according to an embodiment of the present invention includes a sensor unit 110 provided in a construction machine 1 and sensing objects or people around the construction machine 1 And a danger zone display unit 120 provided in the construction machine 1 and displaying a danger zone pattern 122 around the construction machine 1 when a sensor or a person is detected by the sensor unit 110 have.

1 and 2, the sensor unit 110 is provided on the side or rear of the construction machine 1, and detects whether there is a person such as equipment around the construction machine 1 or a person such as a pedestrian or a worker . Accordingly, the sensor unit 110 may be provided as any one of a laser sensor, an infrared sensor, an ultrasonic sensor, and a vision sensor. However, the sensor unit 110 may be any type and / Type sensor can be used as the sensor unit 110 as well.

Meanwhile, the sensor unit 110 may be provided on the construction machine 1 in at least one manner. The range that the sensor unit 110 can detect depending on the number of the sensor units 110 provided in the construction machine 1, that is, the range of the sensor recognition area 112, can be changed.

The sensor recognition area 112 indicates the maximum area or distance at which the sensor unit 110 can sense an object or a person in the vicinity of the construction machine 1. In other words, the sensor unit 110 can recognize when an object or a person is located in the sensor recognition area 112 based on the construction machine 1, and when an object or a person is located outside the sensor recognition area 112 . That is, it may be impossible to recognize the object or person located outside the sensor recognition area 112 until the sensor or the person enters the sensor recognition area 112.

The sensor recognition area 112 may be enlarged or reduced according to traveling, left / right turn, backward movement, or forward movement of the construction machine 1, or may be fixed depending on the angle at which the sensor unit 110 is mounted. For example, the sensor recognition area 112 may be adjusted by adjusting the sensitivity of the sensor unit 110 itself, and the angle of the sensor unit 110 may be adjusted by a control unit 130, which will be described later, The sensing range or size may be adjusted.

1 to 5, the dangerous area display unit 120 is provided on at least one side surface or rear surface of the construction machine 1, and the dangerous area display unit 120 is provided with a sensor unit 110, When it is detected that the approaching object is approaching, the dangerous area pattern 122 can be displayed on the periphery of the construction machine 1 according to the sensed result. That is, the dangerous area display unit 120 can display the dangerous area pattern 122 visually recognizable on the ground around the construction machine 1. [

Meanwhile, the dangerous area display unit 120 according to an embodiment of the present invention may include a laser beam generating unit 210 and a mounting unit 220.

3 and 4, the laser beam generating unit 210 displays a dangerous area pattern 122 on the periphery of the construction machine 1 when the sensor unit 110 detects a thing or a person The laser beam can be irradiated. Accordingly, the laser beam generating unit 210 includes a main body 212 rotatably coupled to a mounting unit 220 to be described later, a light source module 216 provided inside the main body 212 to generate a laser beam, A reflection member 218 and a reflection member driving unit 217 which are provided inside the main body 212 so as to face the reflection member 216 and adjust the inclination of the reflection member 218 and the reflection member 218 that reflect the laser beam generated from the light source module 216, .

The main body 212 may refer to a case of the laser generating unit 210. The body 212 may be made of various materials such as steel, plastic, and the like. In addition, the main body 212 may be formed to have a different size according to the size or the operation radius of the construction machine 1 to which the danger warning display unit 120 is to be mounted, or may be formed into a variety of shapes such as a hollow rectangular column, . ≪ / RTI >

The other end of the main body 212, that is, the end opposite to the light source module 216, emits the laser beam L generated from the light source module 216 from the inside of the main body 212 to the outside, To the surrounding ground surface.

Accordingly, the main body 212 may be provided with a discharge port 213 through which the laser beam L passes. The laser beam L generated inside the main body 212 can escape to the outside through the discharge port 213 provided in the main body 212. 3 and 5 illustrate that the discharge port 213 is formed in an open form, but the present invention is not limited thereto and may be made of a transparent material. That is, the discharge port 213 is not opened, but the discharge port 213 having the open form is formed with a transparent member (not shown) made of a transparent material so that the discharge member opens the discharge port 213 It is also possible to have a form. When the laser beam L is formed as described above, the laser beam L can be displayed on the ground through the transparent cover member formed on the discharge port 213. At this time, it is also possible to adjust the transmission intensity, the irradiation distance, and the like of the laser beam L displayed on the ground by selecting the material according to the thickness or the radius of curvature of the clogging member or the refractive index or refractive index. In addition, when two or more types of laser beams having different wavelengths or colors are generated in the light source module 216 and two or more materials capable of passing only the respective laser beams are formed, Danger warning with various forms or messages can be made by changing the displayed indication.

On the other hand, the discharge port 213 is preferably formed on the upper side of the main body 212, but is not limited thereto. For example, in order to irradiate the laser beam L farther, a discharge port 213 may be formed at the intermediate portion of the main body 212. [ The discharge port 213 may be formed at the upper end of the main body 212 or at the lower end according to the radius of the dangerous area pattern 122 to be displayed on the periphery of the construction machine 1, Or may be formed on the right side. In addition, the discharge port 213 according to an embodiment of the present invention may be formed on one side or the other side of the main body 212, that is, on either the left side or the right side.

 The irradiation angle of the laser beam L emitted from the discharge port 213 varies according to the position or the forming angle of the discharge port 213 as shown in FIG. The location may also vary. For example, when the angle formed between the laser beam L emitted from the discharge port 213 and the paper surface is small, the dangerous area pattern 122a may be displayed at a position distant from the laser beam generating unit 210, The danger zone pattern 122b may be displayed at a position close to the laser beam generating unit 210 when the angle between the laser beam L emitted from the laser beam generating unit 213 and the ground surface is large.

In addition, instead of forming all the portions of the discharge port 213 at the same height, the height of the discharge port 213 is different according to the portion of the discharge port 213, so that the configuration of the laser beam displayed on the ground is different, It is also possible to give a warning to a nearby worker or pedestrian with a special message.

As described above, the length or the range of the arc of the dangerous area pattern 122 displayed on the ground may vary depending on the position, angle, height, etc. of the discharge port 213 formed in the main body 212.

The inner circumferential surface of the main body 212 may be formed in a concavo-convex shape. In other words, as shown in FIG. 5A, the inner peripheral surface of the main body 212 is not formed as a flat surface, but may be provided in a state in which a plurality of rugged protrusions are formed, an embossed shape, or a concavo-convex shape. The laser beam L generated from the light source module 216 provided inside the main body 212 can be scattered in the main body 212. [ In other words, as the laser beam L is scattered in the main body 212, the main body 212 itself shines like an alarm, so that the main body 212 itself does not display the laser beam on the ground, Or pedestrians can give a visual warning. At this time, the main body 212 may be formed of a material through which the laser beam can be transmitted so that the laser beam is scattered and is also visible even on the outer surface of the main body 212.

5 (b), a part of the laser beam L scattered in the main body 212 is irradiated to the peripheral surface of the construction machine 1 through the discharge port 213, The pattern 122 may be formed.

Referring to FIG. 4, the light source module 216 may form a laser beam L for forming a hazardous area pattern 122 displayed on the ground. In other words, the light source module 216 can adjust the intensity of the laser beam L generated at the same time as the laser beam L is generated.

Also, the light source module 216 may control the generation frequency or duration of the generated laser beam. In addition, it is also possible to generate a plurality of laser beams having various colors or frequencies. In this case, it is preferable that the number of the light source modules 216 is also formed according to the number of laser beams.

The reflecting member 218 is a kind of mirror and can reflect or refract the laser beam L generated from the light source module 216. [ The light source module 216 and the reflecting member 218 may be provided inside the main body 212. At this time, the light source module 216 may be disposed at a position opposite to the light source module 216 provided inside the main body 212, that is, at a position facing the light source module 216.

The range or position of the hazardous area pattern 122 displayed on the ground may be varied with the angle of reflection of the laser beam L depending on the angle of the reflecting member 218. [ Here, the angle of the reflecting member 218 may be adjusted by a reflecting member driving unit 217, which will be described later, or may be manually adjusted by an operator. For reference, the reflecting member 218 may be formed in various shapes such as a circle, a square, and the like, and may be formed not only in a plane but also in the form of a concave curved surface or a convex curved surface. However, the shape of the reflecting member 218 is not limited thereto.

The reflection member driving unit 217 can adjust the angle of the reflection member 218 or rotate the reflection member 218. [ The reflection member driving unit 217 may be a member capable of generating a driving force such as a motor.

The reflective member driving unit 217 may control the angle of the reflective member 218 having one end coupled with the reflective member 218 and looking at the light source module 216, It may be rotated clockwise or counterclockwise. The range, distance, or position of the hazardous area pattern 122 displayed on the ground varies depending on the inclination of the reflecting member 218 adjusted by the reflecting member driving unit 217.

In addition, as the reflecting member 218 rotates while reflecting the laser beam, the dangerous area pattern 122 displayed on the ground can be displayed in the form of a continuous line by the range or angle in which the reflecting member 218 rotates.

The reflective member driving unit 217 may adjust the angle of the reflective member 218 while rotating the reflective member 218. In this case, the hazardous area pattern 122 displayed on the ground is not a circular or arcuate shape, Can be displayed.

For reference, the reflection member driving unit 217 can control the angle, the rotation direction, the rotation speed, the rotation range, and the like of the reflection member 218 by being controlled by the control unit 130, which will be described later.

4, a distance h from the ground to the reflecting member 218 of the laser beam generating unit 210 is h, and a distance between the laser beam L that is generated in the light source module 216 and enters the reflecting member 218, The display distance or the range d of the hazardous area pattern 122 is expressed by the following equation (1): " (1) "

 [Equation 1]

On the other hand, the angle? Between the laser beam L and the reflective member 218 can be obtained from the equation (1), which can be expressed as shown in equation (2).

&Quot; (2) "

Β refers to the angle between the laser beam L generated by the light source module 216 and reaching the reflecting member 218 and the laser beam L reflected by the reflecting member 218 and irradiated to the ground surface .

3, the distance d between the laser beam generating unit 210 and the dangerous area pattern 122 displayed on the paper is calculated using Equation (1) Can be used to calculate the angle alpha between the laser beam L generated in the light source module 216 and incident on the reflecting member 218 and the reflecting member 218. [

The control unit 130 adjusts the angle of the reflecting member 218 according to the value calculated by the equations (1) and (2) so that the range of the dangerous area pattern 122 or the distance And so on.

On the other hand, the mounting unit 220 of the dangerous area display unit 120 is a part for mounting and fixing the dangerous area display unit 120 to the construction machine 1. [ The laser beam generating unit 210 may be mounted to be rotated or tilted relative to the mounting unit 220.

This mounting unit 220 is provided in the mounting frame 222 and the mounting frame 222 mounted and fixed to the construction machine 1 and is provided to the laser beam producing unit 210 for the construction machine 1 or the mounting frame 222. [ And a frame driving unit 224 for adjusting the slope of the frame.

Specifically, the mounting frame 222 of the mounting unit 220 is formed in the form of a flat plate on one side, and can be mounted on the construction machine 1 by forming a coupling hole at one end.

Although the drawing shows that the hazardous area display unit 120 including the mounting unit 220 and the laser beam generating unit 210 is located on the side of the construction machine 1, And may be mounted on the upper end. In order to mount the dangerous area display unit 120 on the upper end of the construction machine 1, it is preferable to form a coupling hole (not shown) at the lower end of the installation frame 222. For reference, the shape of the mounting frame 222 can be modified according to the shape of the corresponding portion of the construction machine 1 on which the mounting frame 222 is mounted.

The lower end of the frame driving unit 224 may be coupled to the mounting frame 222. At this time, the frame driving unit 224 may be coupled to the mounting frame 222 with two spaced apart from each other. The main body 212 of the laser beam generating unit 210 may be installed between the two frame driving units 224 so as to be rotatable or tilting. The laser beam generating unit 210 may be coupled to the frame driving unit 224 and may be tilted to the left or right by the frame driving unit 224. [

The frame driving portion 224 of the mounting unit 220 may be provided over the mounting frame 222 and the main body 212 of the laser beam generating unit 210. [ The frame driving unit 224 may be provided with the same motor as the reflective member driving unit 217, but is not limited thereto. That is, as shown in Fig. 3, the frame driving unit 224 and the main body 212 are axially coupled, and the laser beam generating unit 210 can be tilted to the left or right around the axis. At this time, the frame driving unit 224 for tilting the laser beam generating unit 210 to the left or right can be controlled by a control unit 130, which will be described later.

The frame driving unit 224 may include a guide unit 226 for limiting the tilting angle or range of the laser beam generating unit 210. The guide part 226 may be formed to penetrate a casing (not shown) of the frame driving part 224 or may be formed in a groove shape of a concave shape on one surface in contact with the laser beam generating unit 210. As shown in Fig. 3, the guide portion 226 preferably has an arc shape. A guide pin (not shown) inserted into the guide portion 226 may protrude from the lower end of the laser beam generating unit 210 coupled to the frame driving portion 224. [

Also, although not shown, the dangerous area display unit 120 may further include a horizontal holding unit (not shown). The horizontal holding unit keeps the dangerous area display unit 120 always in a horizontal state even if the construction machine 1 is not located on a horizontal ground and is on a sloping ground or a rough ground. To this end, a horizontal driving unit (not shown) for keeping the laser beam generating unit 210 in a horizontal state according to a result of determination by the inclination sensor (not shown) and the inclination sensor for detecting the horizontal state or the inclination of the laser beam generating unit 210 Not shown). That is, it is preferable that the laser beam generating unit 210 generates a laser beam after the horizontal driving part maintains the horizontal state of the laser beam generating unit 210.

The control unit 130 may control the sensor unit 110 and the reflective member driving unit 217 and the frame driving unit 224 of the dangerous area display unit 120 as described above. In other words, the control unit 130 determines whether the position, the range, or the size of the dangerous area pattern 122 displayed on the ground according to the traveling or working state of the construction machine 1 or the inclination of the construction machine 1 relative to the ground, The reflective member driving unit 217 and the frame driving unit 224 can be controlled. In addition, the control unit 130 may control the laser beam generating unit 210 to operate only in a horizontal state by interlocking with the tilt sensor of the horizontal holding unit and controlling the horizontal driving unit.

Specifically, the control unit 130 receives the detection result of the presence or absence of objects or objects around the construction machine 1 from the sensor unit 110 provided in the construction machine 1, The inclination angle of the laser beam generating unit 210 or the mounting unit 220 from the inclination sensor (not shown). That is, when it is determined by the sensor unit 110 that there is an object or person around the construction machine 1, the control unit 130 controls the laser beam generation unit 210 to generate a ground The dangerous area pattern 122 may be displayed on the screen.

On the other hand, when the tilting of the construction machine 1 received from the tilting sensor (not shown) is detected to be tilted with respect to the ground, the controller 130 reflects the laser beam l generated from the light source module 216 Which adjusts the inclination of the laser beam generating unit 210 with respect to the construction machine 1 by operating the reflection member driving unit 217 to adjust the inclination of the reflecting member 218 to be fixed to the mounting frame 222, The horizontal driving unit of the horizontal holding unit can be operated to operate the driving unit 224 or to keep the laser beam generating unit 210 in a horizontal state. In other words, the control unit 130 controls the frame driving unit 224 in accordance with the tilt of the construction machine 1 relative to the ground to tilt the laser beam generating unit 210 in the left or right direction, The display area or the range of the dangerous area pattern 122 displayed on the periphery of the construction machine 1 can be changed by controlling the reflective member driving unit 217 according to the angle at which the display unit 210 is tilted.

That is, the control unit 130 can change the position, angle, thickness, etc. of the hazardous area pattern 122 incident on the ground by interlocking with the laser beam generating unit 210 and the mounting unit 220, The angle, the thickness, and the like of the hazardous area pattern 122 incident on the ground according to the running or the operation state of the vehicle or the inclination to the ground.

For example, referring to FIG. 6, in the case where an operation such as digging, gripping, etc. is performed while the construction machine 1 is stopped, the dangerous area pattern 122 may be displayed on the entire circumference of the construction machine 1 . In other words, in case that the construction machine 1 is stopped while it is in operation, the danger area pattern 122 is set to the safety distance of the construction machine 1 so as to recognize that the object or the person is dangerous in any direction, The entire area of the sensor recognition area 112 or the sensor recognition area 112 can be displayed along the periphery of the construction machine 1. For reference, when the construction machine 1 is stopped, the dangerous area pattern 122 displayed on the ground may be displayed in a circular shape, but it is not limited to this, and may be formed in a different shape such as a square.

7, when the upper body of the construction machine 1 is turning in the rightward direction, the dangerous area pattern 122 is detected at the right safety distance 2 or the sensor recognition area 112). ≪ / RTI > 8, if the upper part of the construction machine 1 is in the leftward pivoting state, the dangerous area pattern 122 is detected by the left safety distance 2 or the sensor recognition area 2 shown on the left side of the construction machine 1, (112). ≪ / RTI >

7, when the upper body of the construction machine 1 turns to the right, that is, when the construction machine 1 rotates about 180 degrees in the clockwise direction, the upper body of the construction machine 1 The left part is relatively less dangerous than the right part. The control unit 130 determines whether the sensor recognition area 112 or the safety distance 2 displayed on the ground of the upper right portion of the construction machine 1 is the sensor recognition area 112 displayed on the ground of the left part, The danger area pattern 122 displayed on the ground corresponding to the sensor recognition area 112 or the safety distance 2 is displayed in a larger size or larger in the right portion than in the left portion, . 7 and 8, the control unit 130 may be provided on either the right side or the left side of the upper body of the construction machine 1 in accordance with the turning direction of the upper body of the construction machine 1 The dangerous area pattern 122 may be displayed only on the ground corresponding to the sensor recognition area 112 or the safety distance 2. [

9, when the construction machine 1 is in the backward direction, the dangerous area pattern 122 corresponds to the safety distance 2 or the sensor recognition area 112 indicated on the rear surface of the construction machine 1 It can only be displayed on the ground. At this time, the size or the range of the safety distance 2 or the sensor recognition area 112 displayed on the rear surface of the construction machine 1 is not limited to the safety distance 2 displayed on the front or side surface of the construction machine 1, The sensor recognition area 112 is preferably formed larger than the sensor recognition area 112. For example, when there is an object or a person on the backward direction of the construction machine 1 and when there is an object or a person on a position about 45 degrees with respect to the backward direction of the construction machine 1, Because the object or person will encounter the construction machine 1 faster than the object or person located at about 45 degrees. This makes it possible to display the safety distance 2 and the sensor recognition area 112 displayed on the reverse direction of the construction machine 1 relatively larger or to display the dangerous area pattern 112 displayed in the backward direction of the construction machine 1 It may be desirable to have the width of the light source 122 displayed to be larger.

When the backward movement of the construction machine 1 is detected by the control unit 130, the safety distance 2 and the sensor recognition area 112 displayed on the reverse direction of the construction machine 1 can be set to be larger have. For example, the control unit 130 may display the sensor recognition area 112 and the safety distance 2 or the danger warning pattern 122 in the shape of an ellipse with respect to the backward direction of the construction machine 1. [ 9, the danger warning pattern 122 is shown as an elliptical shape, but it is not limited thereto and may be displayed in other shapes or shapes.

Although not shown in the drawings, when the construction machine 1 travels forward, the driver's vision of the construction machine 1 is the same as the running direction of the construction machine 1, It is not necessary to display the pattern 122, but the present invention is not limited thereto.

7 to 9, the dangerous area pattern 122 corresponding to the driving or working state of the construction machine 1 is displayed on the ground. However, when the construction machine 1 performs complex operations or operations The dangerous area pattern 122 corresponding to all the complex operations of the construction machine 1 may be sequentially displayed on the ground or may be displayed as redundant. For example, when the construction machine 1 performs a backward or upside right turning operation, a dangerous area pattern 122 is displayed on both the right portion of the construction machine 1 and the rear portion of the construction machine 1 . That is, the number of the hazardous area patterns 122 displayed on the ground is not limited, and may be indicated by a plurality of operation states and running states of the construction machine 1 as described above.

Referring to FIG. 1, the danger warning apparatus 100 may further include a notification unit 140. The notification unit 140 may interfere with the sensor unit 110 and the control unit 130 to notify a danger to an object or person around the construction machine 1 and to inform the driver of the construction machine 1 of the construction machine 1 ) To the vicinity of a person or object. That is, if the above-described dangerous area pattern 122 is a 'primary danger warning' for notifying a danger to a person such as a worker or a pedestrian who is approaching or located near the construction machine 1, 140 may be referred to as a "second danger warning" for notifying the driver of the construction machine 1 of the danger as well as the objects (equipment) or workers and pedestrians around the construction machine (1).

The notification unit 140 may be provided outside the construction machine 1 or may be provided inside the cab of the construction machine. The notification unit 140 may generate a notification sound (audible signal) (Visual signal). The notification unit 140 receives the signal from the control unit 130 when it is detected by the sensor unit 110 that the dangerous area pattern 122 displayed on the ground around the construction machine 1 is approaching within the safety distance 2, And informs the operator or the driver of the pedestrian or the construction machine 1 of the operation.

Meanwhile, the danger warning device 100 according to an embodiment of the present invention may be configured such that an object or a person approaching within a safety distance 2 of the construction machine 1 from the sensor unit 110 is continuously sensed, The operation or operation of the construction machine 1 may be stopped under the control of the control unit 150. [ In other words, even after the notification unit 140 is activated, if it is continuously detected that the dangerous area pattern 122 displayed on the ground by the sensor unit 110 is within the safety distance 2 due to a person or object passing over it, The sensing signal may be transmitted to the controller 130. Then, the control unit 130 can prevent the safety accident by forcibly stopping the starting operation as well as the operation of the construction machine 10 based on the received sensing signal.

According to the construction described above, the danger warning device 100 of the construction machine of the present invention can prevent a safety accident in advance by warning a person around the construction machine to exist in a dangerous area of the construction machine.

In addition, the danger warning device 100 of the construction machine of the present invention minimizes the occurrence of unnecessary warning by changing the shape and position of the dangerous area pattern according to the traveling or working state of the construction machine, Can inform the running or operation state of the construction machine.

In addition, the danger warning device 100 of the construction machine of the present invention detects the danger zone pattern on the ground by sensing the operator or pedestrian of the sensor unit even if the driver of the construction machine does not inform the operator or pedestrian around the construction machine of the danger Workers or pedestrians around the construction machine can immediately sense the danger.

Furthermore, since the danger warning device 100 of the construction machine of the present invention displays a dangerous area pattern on the ground around the construction machine by using the laser beam, it is possible to provide the workers and pedestrians around the construction machine with environmental effects Regardless of the risk.

The construction machine danger warning device 100 of the present invention senses and compensates for the inclined state or angle of the construction machine or the danger warning device with respect to the horizontal reference plane, thereby compensating for the inclined state or angle of the construction machine or the danger warning device It is possible to display a certain dangerous area pattern around the construction machine irrespective of the construction machine. Therefore, it is possible to prevent an accident that the operator or the pedestrian is injured due to the dangerous area pattern that is displayed incorrectly.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the claims set forth below, fall within the scope of the present invention.

1: Construction machinery
2: Safety distance
100: danger warning device of construction machinery
110:
112: sensor recognition area
120: Hazardous area indicator
122: Hazardous area pattern
130:
140:
210: laser beam generating unit
212:
213:
216: Light source module
217:
218: reflective member
220: mounting unit
222: mounting frame
224:

Claims (9)

A sensor unit provided on the construction machine for sensing objects or people around the construction machine; And
A danger zone display unit provided on the construction machine and configured to display a dangerous area pattern around the construction machine when an object or a person is detected by the sensor unit;
/ RTI >
The danger zone display unit displays,
A laser beam generating unit for irradiating a laser beam for displaying the dangerous area pattern on the periphery of the construction machine according to the detection result of the sensor unit; And
And a mounting unit mounted on the construction machine for adjusting a tilting angle of the laser beam generating unit with respect to the construction machine.
The method according to claim 1,
Wherein the laser beam generating unit comprises:
A body coupled with the mounting unit;
A light source module provided inside the main body and generating a laser beam;
A reflecting member provided in the main body so as to face the light source module and reflecting a laser beam generated from the light source module; And
And a reflection member driving unit for adjusting a tilt of the reflection member or rotating the reflection member.
3. The method of claim 2,
The mounting unit includes:
A mounting frame for positioning the laser beam generating unit on one side of the construction machine; And
And a frame driving unit coupled to the mounting frame for adjusting a tilting or tilting angle of the laser beam generating unit with respect to the construction machine.
The method of claim 3,
And a control unit for controlling the reflection member driving unit or the frame driving unit,
Wherein,
The frame driving unit controls the frame driving unit according to the inclination of the construction machine with respect to the ground to tilt the laser beam generating unit to the left or right direction or to adjust the tilt of the construction machine or the reflection Wherein the control unit controls the member driving unit to change an angle, a rotation direction, or a rotation speed of the reflection member.
5. The method of claim 4,
One end of the frame driving part is engaged with the mounting frame,
Wherein the main body is provided with a discharge port for discharging the laser beam generated from the light source module toward the outside of the main body. 6. The method of claim 5,
Wherein the discharge port is formed in an open form or is covered with a transparent material.
6. The method of claim 5,
Wherein an inner circumferential surface of the main body is formed in a concavo-convex shape so that a laser beam generated from the light source module is scattered inside the main body.
6. The method of claim 5,
Wherein the position of the discharge port varies depending on a position, a range, or a size of a dangerous area pattern to be displayed on the periphery of the construction machine.
6. The method of claim 5,
Wherein the discharge port is formed to have a different height according to a location of the discharge port.

Images