KR101788689B1 - Safety warning device of construction machinery - Google Patents

Safety warning device of construction machinery Download PDF

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Publication number
KR101788689B1
KR101788689B1 KR1020160006660A KR20160006660A KR101788689B1 KR 101788689 B1 KR101788689 B1 KR 101788689B1 KR 1020160006660 A KR1020160006660 A KR 1020160006660A KR 20160006660 A KR20160006660 A KR 20160006660A KR 101788689 B1 KR101788689 B1 KR 101788689B1
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KR
South Korea
Prior art keywords
construction machine
sensor
warning
displayed
safety
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KR1020160006660A
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Korean (ko)
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KR20170086968A (en
Inventor
서명국
임훈
Original Assignee
재단법인 건설기계부품연구원
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Priority to KR1020160006660A priority Critical patent/KR101788689B1/en
Publication of KR20170086968A publication Critical patent/KR20170086968A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
    • B60R1/081—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/24—Safety devices, e.g. for preventing overload
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/20—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used
    • B60R2300/202—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used displaying a blind spot scene on the vehicle part responsible for the blind spot

Abstract

A safety warning device for a construction machine according to an embodiment of the present invention includes a sensor unit provided on a construction machine for sensing an object or a person around the construction machine and a sensor unit provided on the construction machine, And a warning display unit for displaying a danger warning pattern on the ground around the construction machine when the presence of an object or a person is recognized. According to the present invention, a safety accident can be prevented in advance by warning that a person or object detected within the safety distance of the construction machine is present in a dangerous area of the construction machine.

Description

TECHNICAL FIELD [0001] The present invention relates to a safety warning device for a construction machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety warning device for a construction machine, and more particularly, to a safety warning device for a construction machine capable of preventing a safety accident by detecting and warning a person or person approaching the vicinity of the construction machine.

Generally, a construction machine driver focuses on meticulous operation or work, and a high noise is generated in a place where a heavy use of construction machinery such as a construction site occurs. Therefore, a driver of a construction machine is required to operate other workers or pedestrians and objects It is often impossible to detect. As a result, many safety accidents occur in which occupants and pedestrians working around construction machinery are injured by the running of construction machinery.

Unlike general vehicles, excavators are large, boom, arm, and bucket. They are combined with the upper body and the upper body, which can rotate 360 degrees, and are combined with the lower body for traveling. Therefore, . Specifically, even if another worker is working in the work area of the excavator, or an object such as other equipment is located, the driver of the excavator can not easily recognize it, and suddenly turning to the left or right or moving backward or forward, There is a risk of a safety accident or the destruction of objects.

Accordingly, in the field where excavators are used, in order to prevent safety accidents, it is prohibited to perform turning operation when there is a person in the excavator working area, or to control people around the excavator. In addition, there is a warning on the back of the excavator, "Danger, Do not approach within the working radius", to ensure a safe distance between the excavator and the person walking. In addition, a camera mounted on an excavator allows the driver to see the monitor provided in the cab to determine whether a person or object is present around the excavator. In recent years, an around-view (vehicle surround monitoring device) can be attached to an excavator to grasp the surrounding image information including the blind spot of the excavator.

However, the devices for detecting the presence of objects or persons in the vicinity of the excavator are for excavator drivers, not for walkers or workers around the excavator. That is, inform the excavator driver whether there are people around the excavator so that the excavator driver can take appropriate action. However, due to the external environmental factors such as the ineffective operation of the excavator or the noise at the site where the excavator is used, the driver of the excavator can not accurately recognize the dangerous situation There is a problem that a safety accident may occur immediately.

Therefore, there is a need for a system that can prevent safety accidents in both directions by allowing the person and equipment working around the construction machine as well as the driver of the construction machine to easily recognize the safety distance (accident risk area).

The applicant of the present invention has proposed the present invention in order to solve the above problems, and as a prior art document related thereto, Japanese Patent Laid-Open No. 2002-32470 (entitled " 11. 11. 15.) There are.

It is an object of the present invention to provide a method and apparatus for a construction machine, which is designed not only for a driver of a construction machine but also for a person who is in the vicinity of the construction machine or approaches the construction machine so that a person or object working near the construction machine can easily recognize the safety distance and danger with the construction machine And to provide a safety warning device for a construction machine capable of preventing safety accidents by notifying the possibility of danger.

Another object of the present invention is to provide a visual method of notifying workers who are present or approaching the vicinity of a construction machine that they are in an accident risk zone so as to maintain the set safety distance or to prevent the accident A safety warning device for a construction machine.

It is still another object of the present invention to provide a safety warning device for a construction machine that can recognize an object approaching a construction machine or approaching the construction machine and can prevent an unnecessary warning by changing the operation mode of the construction machine according to 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.

In order to accomplish the above object, a safety warning device for a construction machine according to the present invention comprises a sensor unit provided on a construction machine for sensing objects or persons around the construction machine, and a sensor unit provided on the construction machine, And a warning display unit for displaying a danger warning pattern on the ground around the construction machine when the presence of an object or a person is recognized around the construction machine.

The warning display unit may display the danger warning pattern on the sensor recognition area of the sensor unit or on the ground corresponding to the safety distance of the construction machine.

The sensor recognition area is a maximum range in which the sensor unit can detect an object or a person approaching or approaching the construction machine. The safety distance is a safety distance between the construction machine and the object or person, It may be the minimum distance to prevent accidents.

The sensor recognition area and the safety distance are defined as a distance or a range from the construction machine around the construction machine, and the safety distance can be formed in the sensor recognition area.

The warning display unit may display the danger warning pattern in the order of the sensor recognition area and the ground corresponding to the safety distance.

When the sensor unit detects that an object or a person enters the sensor area or the sensor unit recognizes that a part of the danger warning pattern displayed on the ground corresponding to the sensor recognition area is displayed on an object or a person, The risk warning pattern can be displayed on the ground.

When the sensor detects that the object or person approaches the construction machine through the danger warning pattern displayed on the ground corresponding to the safety distance, the operation of the construction machine is interrupted or the power supplied to the construction machine is interrupted .

The warning display unit may display the danger warning pattern differently according to at least one of a stop, a running, a turning, and a working mode of the construction machine.

When the construction machine is operating in a stationary state, the warning display unit may display the danger warning pattern in a circle around the construction machine.

The warning display unit displays the danger warning pattern displayed on the ground in the turning direction of the construction machine in a larger or thicker manner than the danger warning pattern displayed on the ground in the direction opposite to the turning direction when the construction machine is turning in the left or right direction Alternatively, the danger warning pattern may be displayed on the ground surface of the construction machine in the turning direction.

The warning display unit may display the danger warning pattern displayed on the ground in the backward direction of the construction machine larger or thicker than the danger warning pattern displayed on the ground in the reverse direction of reverse, The risk warning pattern can be displayed only on the backward direction of the vehicle.

When the construction machine is reversed, the warning display unit may display the danger warning pattern in an oval shape on the ground surface of the construction machine so that the backward direction of the construction machine is the long axis of the ellipse.

The safety warning device of the construction machine of the present invention can prevent a safety accident by warning that a person or object detected within the safety distance of the construction machine exists in a dangerous area of the construction machine.

In addition, the safety warning device of the construction machine of the present invention minimizes the occurrence of unnecessary warning by changing the position of the danger mark according to the traveling or working state of the construction machine, Can be promptly notified.

In addition, the safety warning device of the construction machine according to the present invention notifies the visual danger that an operator present or approaching a construction machine is in an accident danger zone, so that an operator around the construction machine actively escapes the danger area It is possible to prevent safety accidents even if the driver of the construction machine fails to take appropriate measures or if the driver makes a mistake.

In addition, since the safety warning device of the construction machine according to the present invention displays a dangerous image pattern on the ground around the construction machine, it is possible to visually warn the workers around the construction machine without being affected by the environment such as noise at the construction site have.

In addition, since the safety warning device of the construction machine according to the present invention displays a collision danger distance on the ground around the construction machine in the form of an image pattern, the driver can grasp the collision between the bucket and the object through the image pattern So that a safety accident can be prevented.

1 is a block diagram for explaining a construction of a safety warning device for a construction machine according to an embodiment of the present invention.
2 is a view showing a sensor recognition area, a safety distance and a construction machine of a safety warning device for a construction machine according to an embodiment of the present invention.
FIG. 3 is a view showing a sensor recognition area and a safety distance when the construction machine shown in FIG. 2 is stopped and in operation.
FIG. 4 is a view showing a sensor recognition area and a safety distance when the upper body of the construction machine shown in FIG. 2 is turned to the right.
FIG. 5 is a view showing a sensor recognition area and a safety distance when the upper body of the construction machine shown in FIG. 2 turns to the left.
FIG. 6 is a view showing a sensor recognition area and a safety distance when the construction machine shown in FIG. 2 is moving backward.

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 safety warning device 100 (hereinafter, referred to as a 'safety 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 safety warning device of a construction machine according to an embodiment of the present invention. FIG. 2 is a block diagram of a safety warning device of a construction machine according to an embodiment of the present invention. FIG. 3 is a view showing a sensor recognition area and a safety distance when the construction machine shown in FIG. 2 is stopped and in operation, FIG. 4 is a view showing the construction of the upper part of the construction machine shown in FIG. FIG. 5 is a view showing a sensor recognition area and a safety distance when the upper body of the construction machine shown in FIG. 2 is turned to the left, FIG. 6 is a view showing a sensor recognition area and a safety distance, This diagram shows the sensor recognition area and the safety distance when the construction machine is moving backward.

1 to 6, a safety warning device 100 for a construction machine according to an embodiment of the present invention includes a sensor (not shown) for approaching the periphery of the construction machine 1, A warning display unit 120 for displaying a danger warning pattern 122 on the ground at the safety distance 2 from the construction machine 1 when an object or person is detected by the unit 110 or the sensor unit 110 ).

1 and 2, the sensor unit 110 may be a member for sensing objects or people. The sensor unit 110 is provided on the side or rear surface of the construction machine 1 to detect whether there is a person such as an equipment or a person such as a pedestrian or a worker in the vicinity of the construction machine 1 or a person or a person to the construction machine 1 It can detect whether or not it is approaching. Accordingly, the sensor unit 110 may be provided with any one of a laser sensor, an infrared sensor, an ultrasonic sensor, and a vision sensor capable of sensing objects or people around the construction machine 1, It is not. Any type of sensor can be used as the sensor unit 110 as long as it can sense the presence or motion of an object or a person.

The sensor unit 110 may be provided on at least one side surface or rear surface of the construction machine 1. The range of the sensor recognition area 112 that can be sensed by the sensor unit 110 may vary depending on the type or number of sensors provided on the side of the construction machine 1.

The sensor recognition area 112 is the maximum area or distance over which the sensor unit 110 provided on the side or rear surface of the construction machine 1 can sense objects or people. That is, if an object or a person is outside the sensor recognition area 112 based on the construction machine 1, the sensor unit 110 can not recognize it and at least an object or a person enters the sensor recognition area 112 This can be perceived.

The sensor recognition area 112 may be fixed according to the sensor unit 110, but may be reduced or expanded depending on the environment in which the construction machine 1 is working. For example, it is possible to adjust the range or size of the sensor recognition area 112 by adjusting the sensitivity of the sensor part 110, or to adjust the sensor recognition area 112 through the control part 150, which controls the operation of the sensor part 110 112 may be adjusted.

1 and 2, the warning display unit 120 detects the approach of a thing or a person to the periphery of the construction machine 1 by the sensor unit 110, (Not shown).

Specifically, the warning display unit 120 may be provided on the side or rear surface of the construction machine 1 as in the case of the sensor unit 110, or may be provided rotatably on a roof (not shown) of the upper body of the construction machine 1 The danger warning pattern 122 may be displayed on the display unit 120. [ At this time, it is preferable that the warning display unit 120 uses a light generating device capable of generating light (or a light source) such as a laser or a beam projector and displaying the generated light on the ground.

The warning display unit 120 detects an object or a person approaching the sensor recognition area 112 of the sensor unit 110 or detects that there is an object or a person in the sensor recognition area 112, The danger warning pattern 122 can be displayed on the ground corresponding to the safety distance 2.

The warning display section 120 is provided on the side or rear surface or the roof of the upper part of the construction machine 1, preferably the construction machine 1, and is provided with a danger warning pattern 122 on the ground, Can be displayed.

If the warning display unit 120 is provided on the side surface or the rear surface of the construction machine 1 or the upper surface thereof, it is preferable that the warning display unit 120 is provided on all sides and the rear surface. At this time, each of the warning display units 120 provided on the side and rear sides can display independent and divided hazard warning patterns, and each of the danger warning patterns displayed by the warning display unit 120 on the side and rear sides can be connected So that a whole danger warning pattern displayed on the ground around the construction machine 1 may be formed. If the warning display unit 120 is rotatably provided on the roof of the upper body, the warning display unit 120 may be rotated to form a whole danger warning pattern displayed on the ground around the construction machine 1. [

Here, the danger warning pattern 122 displayed on the ground can be adjusted or changed according to the illuminance or the illuminance of the periphery of the construction machine 1 or the workplace where the construction machine 1 is operating, And may be controlled by the control unit 150. [ For example, when the lighting state of the workplace is bright, the control unit 150 brightens or hardens the danger warning pattern 122 generated by the warning display unit 120. If the lighting state of the workplace is dark, the control unit 150 The danger warning pattern 122 generated by the warning display unit 120 can be darkened or weakly displayed. To this end, the construction machine 1 may further include an illuminance detection sensor (not shown), and the controller 150 may control the illuminance detection sensor and the warning display unit 120 in conjunction with each other.

The danger warning pattern 122 may be provided in various forms such as a straight line, a curved line, a circle, a rectangle, etc., such as a polygon, a symbol, a character or a picture, but is not limited thereto. The angle of incidence of the danger warning pattern 122 on the ground and the thickness, thickness, exposure frequency (period), shape and the like of the danger warning pattern 122 coming from the warning display unit 120 are used in the construction machine 1 It can be adjusted according to the conditions of the worksite.

The warning display unit 120 not only displays the danger warning pattern 122 on the ground corresponding to the safety distance 2 but also displays the danger warning pattern 122 on the ground corresponding to the sensor recognition area 112. [ In this manner, the warning display unit 120 displays at least two danger warning patterns 122 to alert the person or object that is in the vicinity of the construction machine 1 or approaches the construction machine 1 have.

Here, the danger warning pattern 122 displayed in the sensor recognition area 112 of the sensor unit 110 may be referred to as a primary warning indication. If the sensor unit 110 detects that the person or object approaches the construction machine 1 while ignoring the primary danger warning pattern displayed on the sensor recognition area 112, The control unit 150 receiving the signal instructs the warning display unit 120 to display the secondary danger warning pattern 122 on the ground corresponding to the safety distance 2. [ In addition, the second hazard warning pattern is a final danger warning. If a person ignores the second hazard warning pattern and approaches the construction machine (1), a safety accident may occur. Accordingly, when the sensor unit 110 senses that the person or object approaches the construction machine 1 while ignoring the second danger warning pattern 122, the control unit 150 controls the operation of the construction machine 1 Or the operation can be stopped to prevent a safety accident.

Also, when a person or an object passes through a primary danger warning pattern displayed in the sensor recognition area 112, the primary danger warning pattern is displayed on a person or object, not on the ground, at a point where a person or an object exists. The control unit 150 detects that the primary danger warning pattern is not displayed on the ground and that the primary danger warning pattern is displayed on a person or an object. When such a state is detected, the warning display unit 120 displays the secondary danger warning pattern 122 on the safety distance 2. [ As shown in FIG.

On the other hand, the safety distance 2 of the construction machine 1 can be adjusted or varied depending on the size of the construction machine 1, the turning radius, and the type of work of the construction machine 1. [ For example, if the construction machine 1 is an excavator, it is desirable to set the safety distance 2 of the excavator to the distance between the central axis of the excavator and the end of the maximum bucket. However, Depending on the turning radius or type of work, the safety distance (2) can be adjusted or varied.

The range from the center of the construction machine 1 to the safety distance 2 is less than the range up to the sensor area 112 of the sensor unit 110, It is preferable that the range of the sensor recognition area 112 is formed to be larger than the range of the safety distance 2 so that the sensor-recognition area 112 exists. This is because the sensor unit 110 must sense an object or a person that is present in the vicinity of the construction machine 1 or approaching the construction machine 1, (2), the sensor unit 110 detects the presence of a person or a person approaching the construction machine 1 at a late time, thereby causing a safety accident. That is, as described above, when the first danger warning pattern is displayed in the sensor recognition area 112 and the person or object is closer to the construction machine 1 after passing through the sensor or area 112, the safety distance 2 , The range of the sensor recognition area 112 must be larger than the safety distance 2 range.

The control unit 150 may control the warning display unit 120 to change the position of the danger warning pattern 122 on the ground according to the driving or working conditions of the construction machine 1 . For this, the safety warning apparatus 100 according to an embodiment of the present invention may further include a driving unit 130 for driving the warning display unit 120 as shown in FIG. Although not shown in the drawing, the driving unit 130 is provided with a motor or the like so as to adjust the incident angle of the danger warning pattern 122 by rotating the warning display unit 120 or moving the warning display unit 120 up and down toward the ground .

The driving unit 130 can change the position, angle, thickness, and the like of the danger warning pattern 122 incident on the ground by interlocking with the warning display unit 120, The position or the thickness of the danger warning pattern 122 displayed on the ground can be changed.

For example, as shown in Fig. 3, when the construction machine 1 is in the stopped state and is in operation such as digging or grasping, the danger warning pattern 122 can be displayed on the entire circumference of the construction machine 1 have. In other words, if the construction machine 1 is in a stationary state, the danger warning pattern 122 may be set to the safety distance of the construction machine 1 so that the danger warning can be recognized regardless of which direction the person or the object approaches. 2 or the entire area of the sensor recognition area 112, i.e., 360 degrees along the circumference of the construction machine 1. [ At this time, it is preferable that the danger warning pattern 122 is displayed in a circle on the basis of the center of the construction machine 1. That is, the danger warning pattern 122 may be displayed in two circles on the ground corresponding to the sensor recognition area 112 and on the ground corresponding to the safety distance 2.

4 and FIG. 4, if the upper body of the construction machine 1 is turning in the rightward direction, the danger warning pattern 122 is transmitted to the right side safety distance 2 or the sensor recognition area 112 of the construction machine 1 The danger warning pattern 122 is displayed only on the left side of the construction machine 1 or on the left side of the construction machine 1 as shown in Fig. Can be displayed only on the ground corresponding to the recognized area 112. [

On the other hand, as shown in FIG. 4, when the upper body of the construction machine 1 turns rightward (that is, when it rotates only about 180 degrees clockwise), the opposite side, Can be said to be less dangerous than the right part. Therefore, the control unit 150 determines whether the sensor recognition area 112 or the safety distance 2 on the right side of the construction machine 1 is larger than the sensor recognition area 112 or the safety distance 2 on the left side Or the danger warning pattern 122 displayed on the ground corresponding to the sensor recognition area 112 or the safety distance 2 may be controlled such that the size or thickness of the sensor part 110 and the warning The display unit 120 can be controlled. The control unit 150 displays a danger warning pattern 122 on the ground corresponding to the sensor recognition area 112 or the safety distance 2 on the right side of the construction machine 1, The sensor unit 110 or the warning display unit 120 may be controlled so that the pattern 122 is not displayed.

Similarly, in the case of Fig. 5, the control unit 150 determines whether the sensor recognition area 112 or the safety distance 2 on the left side of the construction machine 1 is the sensor recognition area 112 on the right side, Or the danger warning pattern 122 displayed on the ground corresponding to the sensor recognition area 112 or the safety distance 2 is controlled so as to be larger than the right part by a size or thickness larger than the right part, (110) and the warning display unit (120). The control unit 150 displays the danger warning pattern 122 on the ground corresponding to the sensor recognition area 112 or the safety distance 2 on the left side of the construction machine 1, The sensor unit 110 or the warning display unit 120 may be controlled so that the pattern 122 is not displayed.

6, if the construction machine 1 is in the backward state, the danger warning pattern 122 may be displayed on the floor corresponding to the rear safety distance 2 of the construction machine 1 or the sensor recognition area 112 Only < / RTI > At this time, it is preferable that the size or the range of the rear safety distance 2 or the sensor recognition area 112 of the construction machine 1 is formed larger than the front or the side of the construction machine 1. If there is a person in front of the backward direction of the construction machine 1 (right before the black arrow in FIG. 6) and a person at a position 45 degrees to the backward direction of the construction machine, The person on the front side strikes the construction machine (1) more quickly than the person in the 45 degree position. Therefore, it is preferable that the sensor recognition area 112 and the safety distance 2 are made relatively larger or the width of the danger warning pattern 122 is made larger in the backward direction of the construction machine 1.

The control unit 150 can set the sensor recognition area 112 and the safety distance 2 for the backward direction of the construction machine 1 to be larger when the control unit 150 detects the backward movement of the construction machine 1 have. For example, the control unit 150 may set the sensor recognition area 112 and the safety distance 2 or the danger warning pattern 122 for the backward direction of the construction machine 1 to an elliptic shape. At this time, it is preferable that the long axis of the ellipse is located in the backward direction of the construction machine 1. [ The control unit 150 may control the sensor unit 110 or the warning display unit 120 so that the danger warning pattern 122 is not displayed in the reverse direction of the backward direction of the construction machine 1. [

On the other hand, 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 need not be expressed in the distance area, but it is not limited thereto.

Referring to FIG. 1, a safety warning device 100 of a construction machine according to an embodiment of the present invention may further include a notification unit 140. The notification unit 140 notifies the driver of the construction machine 1 that the person or object is approaching the periphery as well as informing the person or person around the construction machine 1 of the danger. In other words, if the danger warning pattern 122 described above is a primary safety warning displayed on the ground to inform a danger to a person such as a worker or a pedestrian or the like around the construction machine 1, Is a secondary safety warning for notifying the driver of the construction machine (1) as well as the objects (equipment) or workers and pedestrians around the construction machine (1).

The notification unit 140 may be provided outside or inside the construction machine 1 (preferably inside the cab) and may be a notification sound (audible signal) or a notification signal ). ≪ / RTI > The notification unit 140 may be configured such that the object or the person passes the danger warning pattern 122 displayed on the ground corresponding to the safety distance 2 or the sensor recognition area 112 of the construction machine 1 and within the safety distance 2 When the sensor unit 110 detects the approach, the operator or the pedestrian and the driver of the construction machine 1 can be notified of the approach of the object or person.

1, the safety warning apparatus 100 of the construction machine according to an embodiment of the present invention may include a controller 150. [

The control unit 150 can be linked with or control the sensor unit 110, the warning display unit 120, the driving unit 130, and the notification unit 140. Accordingly, the controller 150 can control the illuminance (brightness), the exposure period, or the ground incidence angle (direction) of the hazard warning pattern 122 displayed on the ground from the warning display unit 120. The control unit 150 may control the illuminance (brightness) of the danger warning pattern 122, the exposure period, the angle of incidence or the position of the ground, depending on the illuminance around the construction machine 1 and the working environment. Also, the risk warning pattern 122 may be controlled to be generated in various forms such as a line, a symbol, a character, and a picture.

On the other hand, the control unit 150 can be interlocked with the construction machine 1. For example, when an object or a person approaching within a safe distance 2 of the construction machine 1 is continuously detected by the sensor unit 110 or is detected for a predetermined time or more, The operation of the control unit 1 can be stopped. In other words, even after the notification unit 140 is activated, when the sensor unit 110 passes the dangerous light pattern 122 displayed on the ground corresponding to the safety distance 2 within a safety distance 2 The detection signal may be transmitted to the controller 150. [ At this time, the control unit 150 receiving the signal from the sensor unit 110 can forcibly stop the operation of the construction machine 1, thereby preventing a safety accident.

3 to 6, only one danger warning pattern 122 is displayed on the ground according to the traveling or working state of the construction machine 1. However, as described above, the sensor mounted on the construction machine 1 A plurality of warning warning patterns 122 may be sequentially or redundantly displayed on the ground according to the alarm 110 or the warning display unit 120. [ For example, when the danger warning pattern is displayed on the ground with two pieces of the first danger warning pattern and the second danger warning pattern, when the sensor unit 110 detects that the object or person has passed the first danger warning pattern, A signal is transmitted to the control unit 150 to turn on a notification or generate a notification sound. When the sensor unit 110 detects that an object or a person has passed the second danger warning pattern, the control unit 150 transmits a signal to the control unit 150 The operation of the construction machine 1 can be set to be forcibly stopped. The number of the danger warning patterns 122 may vary depending on the size and the shape of the construction machine 1.

The operation of the safety warning device 100 of the construction machine according to the embodiment of the present invention will be briefly described with reference to FIGS. 1 to 6. FIG.

First, the safety distance 2 is set in advance according to the size, type, shape, and working environment of the construction machine 1. [ At this time, the safety distance 2 can be set by using a control box (not shown) of the construction machine 1 or the like.

When the construction machine 1 is started or operated, the sensor unit 110, the warning display unit 120, and the control unit 150 operate.

Then, a desired operation is performed by the construction machine 1 in which the safety distance 2 is set. At this time, when an object or a person is approached by the sensor unit 110 within the safety distance 2 of the construction machine 1, the warning display unit 120 displays the sensor recognition area 112 or the safety distance 2 The danger warning pattern 122 is displayed on the ground. Here, depending on the operation or the running state of the construction machine 1, the danger warning pattern 122 may be displayed on the left, right, rear, or front ground of the construction machine 1. [

Then, when the sensor unit 110 detects that an object or a person has passed the danger warning pattern 122, the notification unit 140 is activated. The notification unit 140 turns on the notification or the like to inform the person or object around the construction machine 1 of the danger and informs the driver of the construction machine 1 that the person or object around the construction machine 1 is dangerous, You can tell that things are approaching.

If the sensor unit 110 is located within the safety distance 2 even though the notification unit 140 has been operated because the object or the person has passed the danger warning pattern 122 displayed on the ground corresponding to the safety distance 2, The control unit 150 forcibly stops the operation of the construction machine 1. [

According to the above-described configuration, the safety warning device 100 of the construction machine according to the embodiment of the present invention alerts a person or object detected within the safety distance of the construction machine to exist in a dangerous area of the construction machine, It can be prevented in advance.

In addition, the safety warning device (100) of the construction machine of the present invention minimizes the occurrence of unnecessary warning by changing the position of the danger markings according to the traveling or working state of the construction machine, And job status.

Furthermore, the safety warning device 100 of the construction machine according to the present invention notifies the operator of the risk of accident in the vicinity of the construction machine by visually indicating that the worker in the vicinity of the construction machine is actively dangerous It is possible to avoid a safety accident even if the driver of the construction machine fails to take appropriate measures or the driver makes a mistake.

In addition, since the safety warning device 100 of the construction machine according to the present invention displays a dangerous image pattern on the ground around the construction machine, it is possible to provide visual warning to the workers around the construction machine without being affected by environment such as noise at the construction site .

In addition, since the safety warning device 100 of the construction machine according to the present invention displays a collision danger distance on the ground around the construction machine in an image pattern, it is possible to detect whether the driver collides with the bucket when the upper body rotates, So that a safety accident can be prevented in advance.

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 following claims, belong to the scope of the present invention .

1: Construction machine 2: Safety distance
100: Safety warning device for construction machinery
110: sensor unit 112: sensor recognition area
120: warning indicator 122: danger warning pattern
130: driving unit 140:
150:

Claims (12)

A sensor unit provided on the construction machine for sensing objects or people around the construction machine;
A warning display unit provided on the construction machine for displaying a danger warning pattern on the ground around the construction machine when a presence of an object or a person is recognized by the sensor unit in the vicinity of the construction machine; And
A control unit for controlling the sensor unit or the warning display unit so that the position or shape of the danger warning pattern displayed on the periphery of the construction machine changes according to the driving or working state of the construction machine;
Lt; / RTI >
Wherein the sensor recognition area of the sensor part and the safety distance of the construction machine are defined as a distance or a range centered on the construction machine, the safety distance is formed in the sensor recognition area,
Wherein,
The danger warning displayed on the ground corresponding to the safety distance of the construction machine or displayed in the sensor recognition area of the sensor part on the side or rear of the construction machine according to at least one of the stop, running, Wherein the control unit controls the warning display unit so that the shape or the position of the pattern is displayed differently, and the angle of the danger warning pattern to be incident on the ground according to the illuminance or illumination state of the worksite in which the construction machine is used, , The thickness, the exposure frequency, or the shape of the object to be inspected is adjusted.
The method according to claim 1,
The construction machine further includes a roughness detection sensor for detecting roughness or lighting condition of a worksite where the construction machine is operated,
The control unit controls the illumination sensor and the warning display unit to interlock with each other so that the danger warning pattern is adjusted or varied according to illuminance, brightness, or illumination state of the surroundings of the construction machine or the workplace where the construction machine is operated Safety warning device for construction machinery.
The method according to claim 1,
The sensor recognition area is a maximum range in which the sensor unit can sense an object or a person who is in the vicinity of or approaches the construction machine,
Wherein the safety distance is a minimum distance to prevent a safety accident between the construction machine and an object or person that is in the vicinity of or approaches the construction machine.
delete The method according to claim 1,
Wherein the warning display unit displays the danger warning pattern in the order of the sensor recognition area and the ground corresponding to the safety distance.
The method according to claim 1,
When the sensor unit detects that an object or a person enters the sensor area or the sensor unit recognizes that a part of the danger warning pattern displayed on the ground corresponding to the sensor recognition area is displayed on an object or a person, And the danger warning pattern is displayed on the floor corresponding to the safety warning device of the construction machine.
The method according to claim 1,
When the sensor unit detects that the object or person approaches the construction machine through the danger warning pattern displayed on the ground corresponding to the safety distance, the operation of the construction machine is interrupted or the power supplied to the construction machine is interrupted The safety warning device of the construction machine.
delete The method according to claim 1,
Wherein the warning display unit displays the danger warning pattern in the shape of a circle on the periphery of the construction machine when the construction machine operates in a stationary state.
The method according to claim 1,
The warning display unit displays the danger warning pattern displayed on the ground surface in the turning direction of the construction machine in a larger or bolded manner than the danger warning pattern displayed on the ground in the direction opposite the turning direction when the construction machine is turning in the left or right direction Or displays the danger warning pattern only on the ground surface of the construction machine in the turning direction.
The method according to claim 1,
The warning display unit may display the danger warning pattern displayed on the ground in the backward direction of the construction machine larger or thicker than the danger warning pattern displayed on the ground in the reverse direction of reverse, And the risk warning pattern is displayed only on the ground surface in the backward direction of the construction machine.
The method according to claim 1,
Wherein when the construction machine is reversed, the warning display unit displays the danger warning pattern in an elliptic shape on the ground surface of the construction machine in the backward direction so that the backward direction of the construction machine is the long axis of the ellipse. Safety warning device.
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