KR20230078189A - Safety Tower Crane - Google Patents

Abstract

The present invention relates to a safety tower crane formed to seamlessly monitor the condition of cargo in real time, preventing a collision between cranes. In accordance with an embodiment of the present invention, the safety tower crane includes: a distance measurement sensor installed on a tower crane, and measuring a distance from the installed position to cargo loaded on a hook; a gib movement identification sensor identifying a gib movement of the tower crane; a cargo photography camera installed on the tower crane, along with a tilting module interconnected with the gib movement identification sensor, to photograph the cargo while adjusting the angle in accordance with the gib movement, and receiving the measured distance information to the cargo from the distance measurement sensor to perform a zoom-in or zoom-out operation in accordance with the distance information; a position information acquisition module installed on the tower crane to acquire position information of the tower crane; a central processing module interconnected with the cargo photography camera to receive the image information of the cargo being photographed in real time, interconnected with the position information acquisition module to receive the position information of the tower crane and detect a collision risk, and generating notification information while stopping the operation of the tower crane when a collision risk occurs; and a monitoring device connected to the central processing module, and outputting the information collected or processed by the central processing module, including the image information and the notification information, such that the information can be checked with the naked eye.

Description

Safety Tower Crane {Safety Tower Crane}

The present invention relates to a safety tower crane, and more particularly, to a safety tower crane configured to monitor the state of loads in real time without interruption and to prevent collision between cranes.

Tower crane is the most used construction equipment in the construction of high-rise buildings such as buildings and apartments. A tower mast that rises vertically from the ground, a jib installed on the upper part of the tower mast to rotate, and a jib installed on the jib to move vertically, It consists of a hoist that carries loads and a cab installed on a jib while supported by a tower mast. Depending on the angle the jib makes with the tower mast and whether or not there is a trolley, trolley type (or T type) and rugbing type (or L type) It is common to divide by

The tower crane's heavy transport work is performed by the operator controlling the tower crane in the high-altitude operator's cabin. Tower crane operation, such as lifting and lowering of a hoist, was performed.

On the other hand, as the construction of the building progresses, the tower crane must be raised periodically according to the building's floor height, which gradually increases. The range of the blind spot where the driver's vision is blocked by the building is expanded, and the trolley and hoisting work in the blind spot is completely dependent on the radio communication with the signalman on the ground.

Accordingly, the tower crane is very inconvenient to operate and greatly reduces work efficiency, as the operator has to vaguely check the situation on the ground at a high altitude far from the ground or receive instructions from a signalman while not being able to see it at all. The risk of safety accidents always existed.

In order to solve this problem, Korean Utility Model Registration No. 20-0191025 'Image sensor of tower crane' is equipped with a CCTV camera with a zoom function on a trolley that moves horizontally on the jib of a tower crane, and a CCTV camera in the cab of the tower crane. The above problems have been solved by disclosing a technology in which a controller for controlling and a video monitor for displaying an image of a subject photographed by a CCTV camera is installed.

However, the camera installed on the tower crane needs to zoom in or zoom out from time to time according to the position change of the load ranging from about 1m to 300m, and always shoot the lower part vertically. In the case of , the camera can be installed in the vertical direction on the hook that is perpendicular to the hook carrying the load, but in the case of the rugbing type without a trolley, the jib moves up and down frequently, so it is necessary to adjust the camera position for accurate shooting. The only way to use the camera is to hang it and rely on gravity. At this time, if it is shaken by the wind, it is cumbersome to operate it from time to time, and there is also a safety problem that the camera can fall due to strong wind.

The present invention is a safety tower crane proposed to solve the above problems, regardless of the type of tower crane, and is configured to monitor the state of loads in real time without interruption in a safe and accurate manner, and further prevents collisions between cranes. The purpose is to provide a safety tower crane configured to be able to

A safety tower crane according to an embodiment of the present invention for solving the above problems is installed on the tower crane, a distance measurement sensor for measuring the distance from the installed position to the load loaded on the hook; A jib motion sensor for detecting the jib motion of the tower crane; It is installed in the tower crane, and is installed together with a tilting module linked to the jib motion detection sensor to photograph the load while adjusting the angle according to the movement of the jib, and transmit distance information from the distance measurement sensor to the load measured a load photographing camera configured to receive and perform zoom in or zoom out according to distance information; A location information acquisition module installed in the tower crane to obtain location information of the tower crane; Receive real-time video information of the load photographed in conjunction with the load photographing camera, and detect the risk of collision by receiving the location information of the tower crane in conjunction with the location information acquisition module, and detect the risk of collision when the risk of collision occurs. A central processing module that stops the operation of the crane and generates notification information, and monitoring that is connected to the central processing module and outputs the information collected or processed to the central processing module including the image information and notification information so that it can be visually confirmed. It may consist of a device.

Here, the distance measurement sensor and the load photographing camera are installed on a hoist provided in the jib of the tower crane, and the load photographing camera is always configured to photograph the load in a vertical position by adjusting the angle of the tilting module. .

In addition, the location information acquisition module is installed on a tower mast or driver's cab formed on the central axis of the tower crane to generate a fixed location value, and installed at the end of the jib of the tower crane to generate a variable location value. The central processing module determines the jib position of the tower crane in real time using the fixed position value of the first GPS, the variable position value of the second GPS, the length of the jib, and N-pole information. , and when the real-time jib positions are adjacent to each other within a set distance, it may be configured to detect the risk of collision between tower cranes, stop the tower crane, and generate notification information.

In addition, the monitoring device uses the fixed position value of the first GPS of each tower crane, the variable position value of the second GPS, the length of the jib, and the N-pole information, the jib position of each tower crane and the tower crane Doedoe is configured to colorize and output the turning radius of, configured to give a color change for a tower crane in which the risk of collision is expected, so that the operator can easily grasp the situation.

In addition, the location information acquisition module includes a first group beacon including a plurality of N beacon transceivers installed on the jib of one tower crane at regular intervals and a plurality of M beacons installed on the jib of the other tower crane at regular intervals. and a second group beacon including a transceiver, wherein the central processing module calculates a distance between each of the N beacon transceivers of the first group beacon and each of the M beacon transceivers of the second group beacon to be within a set range. If calculated, it may be configured to detect the risk of collision, stop the tower crane, and generate notification information. (Where N and M are natural numbers)

The safety tower crane according to an embodiment of the present invention can monitor the state of loads in real time without interruption and is configured to prevent collisions between cranes, thereby improving safety. At this time, the monitoring also has the advantage of being configured so that the operator or manager can easily check with the naked eye.

1 (a) and (b) are schematic views showing the configuration of a safety tower crane according to an embodiment of the present invention for each type of tower crane.
Figure 2 is a view showing in detail the hoist portion of the safety tower crane of Figure 1.
3 is a connection diagram between components of a safety tower crane according to an embodiment of the present invention.
4 is a diagram illustrating information collected or processed by a central processing module, which is a component of a safety tower crane according to an embodiment of the present invention, and output to a monitoring device.
5 is a diagram illustrating a safety tower crane using first and second GPS as location information acquisition modules according to an embodiment of the present invention.
6 (a) is a diagram illustrating that the position information of safety tower cranes identified using the first and second GPSs of FIG. 5, the jib length, and the N-pole information is output to the monitoring device, (b) Is a diagram illustrating output to a monitoring device when a risk of collision between safety tower cranes is detected through location information.
7 (a) is a diagram illustrating a safety tower crane using a first group beacon as a location information acquisition module according to an embodiment of the present invention, and (b) is a distance between a first group beacon and a second group beacon. It is a drawing showing an example of measuring .
8 is a diagram illustrating output to a monitoring device when a risk of collision between first and second group beacons of FIG. 7 is detected.

Hereinafter, the description of the present invention with reference to the drawings is not limited to specific embodiments, and various transformations may be applied and various embodiments may be applied. In addition, the content described below should be understood to include all conversions, equivalents, or substitutes included in the spirit and scope of the present invention.

In the following description, terms such as first and second are terms used to describe various components, and are not limited in meaning per se, and are used only for the purpose of distinguishing one component from another.

Like reference numbers used throughout this specification indicate like elements.

Singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "include", "include" or "have" described below are intended to designate that features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. should be construed, and understood not to preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a safety tower crane according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings for an embodiment of the present invention.

1 (a) and (b) are schematic diagrams showing the configuration of a safety tower crane according to an embodiment of the present invention for each type of tower crane, and FIG. 2 is a view showing in detail the hoist portion of the safety tower crane of FIG. 1 3 is a connection diagram between components of a safety tower crane according to an embodiment of the present invention, and FIG. 4 is collected or processed in a central processing module, which is a component of a safety tower crane according to an embodiment of the present invention, and outputs to a monitoring device. It is a diagram illustrating the information to be.

1 to 4, the safety tower crane 1 according to the embodiment of the present invention is a trolley type as shown in FIG. 1 (a) or a rugbing type tower crane as shown in FIG. 1 (b) As can be applied, including a distance measurement sensor 10, a jib motion detection sensor 20, a load shooting camera 30, a location information acquisition module 40, a central processing module 50 and a monitoring device 60, can be configured.

Specifically, the distance measurement sensor 10 can use any sensor capable of measuring distance, such as a laser range finder (LRF), an ultrasonic sensor, an infrared sensor, and the like, and is installed in one or more towers such as a construction site Can be installed for each crane. That is, when three tower cranes are installed in any one construction site, all three tower cranes may be provided with the distance measuring sensor 10.

At this time, the distance measuring sensor 10 may be configured to measure the distance from a position installed on the tower crane to a load (not shown) loaded on the hook HK, preferably provided on the jib JB of the tower crane. It can be installed on a hoist (HIS). The hoist is a part where a hook (HK) for loading a load (not shown) is provided vertically, and when the distance measuring sensor 10 is installed on the hoist (HIS) toward the hook (HK), it is always easy to load the load without a special movement device. can be made measurable.

However, it is only a preferred example that the distance measuring sensor 10 is installed on the hoist (HIS), but it is not necessarily limited, and it is provided with a movement device capable of adjusting the angle or position, so that the tower mast (TM) or operator's cabin (OR) It can also be installed on the back.

On the other hand, the hoist (HIS) means to include the trolley when the tower crane is of the trolley type, and the distance measurement sensor 10 may be installed on the trolley.

The jib motion detection sensor 20 may be configured to determine the movement of the jib (JB) of the tower crane. The jib motion detection sensor 20 may use various sensors such as a G sensor, a horizontal sensor, and a vertical sensor that are not limited to detect a change in the angle or state of the jib.

The jib motion detection sensor 20 is preferably installed on the tower crane like the distance measuring sensor 10, but is not necessarily limited, and if only the movement of the jib JB can be detected, any specific location within the ground or the workplace where the tower crane works It doesn't matter if it is arranged in space.

The above-described distance measurement sensor 10 and the jib motion detection sensor 20 may be used to adjust zoom in and zoom out together with angle adjustment of the loaded object photographing camera 30 .

The loaded camera 30 may be installed individually for each tower crane. At this time, the load photographing camera 30 may be preferably installed on the hoist (HIS) provided on the jib (JB) forming a vertical direction with respect to the load, such as the distance measuring sensor 10, but is not necessarily limited. It is also possible to install it in various positions of the tower crane, such as the tower mast or cab.

In addition, the load camera 30 is installed together with the tilting module 35 to adjust the angle. Here, the tilting module 35 is interlocked with the jib motion detection sensor 20, and the tilting module 35 adjusts the angle according to the movement of the jib JB detected by the jib movement detection sensor 20, and the load photographing camera (30) can always face the load direction.

In addition, the loaded object photographing camera 30 is interlocked with the distance measuring sensor 10 to receive distance information from the distance measuring sensor 10 to the loaded object measured, and zoom in or zoom out according to the distance information ( zoom out).

For example, assuming that the loaded object photographing camera 30 is installed at the same location as the distance measuring sensor 10 and the loaded object at a distance of 10 m, and the loaded object photographing camera 30 is focused on the loaded object at that distance, the distance When the distance measured by the measurement sensor 10 increases by 5m to 15m, the loaded object photographing camera 30 may zoom in to focus on the loaded object at all times.

At this time, if there is a change in the angle of the jib (JB), the jib motion detection sensor 20 observes the change in angle and transmits it to the tilting module 35 so that the tilting module 35 also changes the angle, By facing in the direction of the loaded object, the state of the loaded object can be captured by the loaded object photographing camera 30 in real time without interruption.

The image captured by the loaded object photographing camera 30 is displayed on the monitoring device 60 through the central processing module 50 to be described later, and a worker or manager can visually check the state of the loaded object in real time without interruption.

On the other hand, as described above, the distance measuring sensor 10 and the load shooting camera 30 are installed on the hoist (HIS) so that the load shooting camera 30 always shoots the load vertically despite the adjustment of the jib JB desirable. This may have an effect of enabling a more flexible response to a change in angle or distance of the loaded object and capable of taking a high-accuracy image while minimizing the movement of the loaded object photographing camera 30 .

The location information acquisition module 40 may be installed in the tower crane to obtain location information of the tower crane. At this time, the location information acquisition module 40 is used to prevent collisions between tower cranes, and may be formed of one of the GPS type shown in FIGS. 5 and 6 and the beacon type shown in FIGS. 7 and 8, , A more detailed description will be given later after the central processing module 50 and the monitoring device 60 are finally described.

The central processing module 50 is interlocked with the load filming camera 30 to receive image information of the loaded object being photographed in real time, and interlocks with the location information acquisition module 40 to receive the location information of the tower crane to detect the risk of collision. can At this time, if a collision risk occurs, the central processing module 50 may generate notification information.

The monitoring device 60 is connected to the central processing module 50 as an output means capable of displaying images or images, and information collected or processed by the central processing module 50 as well as the above-described image information and notification information. can be output so that workers or managers can visually check it.

Here, the information collected or processed by the central processing module 50 may be various types of tower crane information as shown in FIG. can include

In addition, one or more monitoring devices 60 are provided, and may be provided in an installation type installed in a tower crane operator's cabin or a field office in a workshop, but are limited to a portable type such as a terminal that can be carried by a worker or manager. It could be.

In the safety tower crane 1 according to the embodiment of the present invention, the operator or manager can monitor the state of the load in real time without interruption at any time in the workplace or cab, and can prevent collisions between cranes.

Hereinafter, collision risk detection and notification information generation through the location information acquisition module 40 and the central processing module 50 of the present invention will be described in more detail with reference to FIGS. 5 to 8 .

5 is a diagram illustrating a safety tower crane using first and second GPS as location information acquisition modules according to an embodiment of the present invention, and FIG. 6 (a) shows the first and second GPS of FIG. 5; A diagram illustrating that position information of safety tower cranes identified using jib length and N-pole information is output to a monitoring device, and (b) is a diagram illustrating that a risk of collision between safety tower cranes is detected through the location information to the monitoring device. It is a drawing illustrating what is output.

First, referring to FIGS. 5 and 6 , the location information acquisition module 40 may include a first GPS 41 and a second GPS 42 as GPS types.

Specifically, the first GPS 41 is a GPS installed on a tower mast (TM) or cab (OR) formed on the central axis of a tower crane to generate a fixed position value, and the second GPS 42 is a tower crane It is a GPS that is installed at the end of the jib (JB) and generates a variable position value.

The first and second GPSs 41 and 42 transmit fixed position values and variable position values at respective positions to the central processing module 50, and the central processing module 50 fixes the first GPS unit 41. The jib position of the tower crane is determined in real time using the position value, the variable position value of the second GPS 42, the jib length, and the N-pole information, and the risk of collision between tower cranes when the real-time jib positions are adjacent to each other within a set distance can be detected and notification information can be generated.

For example, the central processing module 50 receives input of the length of the jib from a worker or manager through an interlocking input device, and the fixed position value from the first GPS 41 and the variable position value of the jib from the second GPS 42 can be delivered. At this time, the central processing module 50 can identify the direction and angle of the jib based on the N-pole information to determine the location of the jib in real time, detect the risk of collision between tower cranes, and generate notification information.

Here, the second GPS 42 may be provided in plurality. This is to more accurately measure the variable position value of the jib while reducing cost. If a plurality of second GPSs 42 are provided, a cheap low-precision GPS with some measurement errors is used instead of using one expensive high-precision GPS. Cost can be reduced by using a plurality of GPS units. At this time, each of the plurality of second GPS units 42 may cause an error, but accurate measurement can be performed at a relatively low cost because the overlapping range can be measured.

Meanwhile, the notification information may be displayed on the monitoring device as described above. At this time, the notification information is the fixed position value of the first GPS, the variable position value of the second GPS, and the length of the jib as shown in FIG. , It can be configured to colorize and output the jib position and turning radius of each of the tower cranes described above, which are calculated using N-pole information. That is, the notification information is visualized and configured so as to be easily identified with the naked eye.

At this time, if a collision risk occurs, it is configured to give a color change for a tower crane in which a collision is expected, so that the operator can easily grasp the collision situation.

7 (a) is a diagram illustrating a safety tower crane using a first group beacon as a location information acquisition module according to an embodiment of the present invention, and (b) is a distance between a first group beacon and a second group beacon. 8 is a diagram illustrating an example of measuring , and FIG. 8 is a diagram illustrating output to a monitoring device when a risk of collision between the first and second group beacons of FIG. 7 is detected.

Referring to FIGS. 7 and 8 , the location information obtaining module 40 is a beacon type and may include a first group beacon 43 and a second group beacon 44 .

Specifically, the first group beacon 43 refers to a group including a plurality of N beacon transceivers installed at regular intervals in the jib JB of one tower crane, and the second group beacon 44 is the other tower crane. It means a group including a plurality of M beacon transceivers installed in the jib (JB) at regular intervals. Here, N and M are natural numbers.

At this time, the central processing module 50 calculates the distance between each of the N beacon transceivers of the first group beacon 43 and each of the M beacon transceivers of the second group beacon 44 and collides when the distance is calculated within the set range. It can detect danger and generate notification information.

For example, the first to fourth beacon transceivers 43a to 43d are included in the first group beacon 43, and the fifth to eighth beacon transceivers 44a to 44d are included in the second group beacon 44. Assuming that it is included, the first beacon transceiver 43a is interlocked with the fifth to eighth beacon transceivers 44a to 44d to calculate distances, and similarly to the second beacon transceiver 43b or the third beacon transceiver 43c. ), the fourth beacon transceiver 43d may also interwork with the fifth to eighth beacon transceivers 44a to 44d to calculate distances, respectively.

According to their distance calculation, the jib position information between the two tower cranes can be known, and if the jib position information of these is calculated within a set range determined to be dangerous to each other, the central processing module 50 detects and informs the risk of collision. information can be generated.

In addition, similarly to the beacon type, jib location information may be output to the monitoring device as shown in FIG. 8 by utilizing measurement information of the first group beacons and the second group beacons, N-pole information, and a jib length.

Through the location information acquisition modules 41 to 44 examined with reference to FIGS. 5 to 8, the present invention can prevent collisions between tower cranes, and as described above, the load photographing camera 30 always detects the load without interruption. By being configured to shoot, it can be used more safely.

In addition, in the above, for better understanding, the central processing module 50 has illustrated that only the notification information is displayed on the monitoring device 60 when the risk of collision between tower cranes is detected, but is not limited thereto, and the central processing module 50 is not limited thereto. When danger is detected, it may be controlled to stop the operation of the tower crane together with display of notification information to the monitoring device 60.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can implement them in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, the embodiments described above are illustrative in all respects and are not restrictive.

1: Safety tower crane
10: distance measuring sensor
20: jib motion detection sensor
30: load shooting camera
35: tilting module
40: location information acquisition module
41: first GPS
42: second GPS
43: first group beacon
44: 2nd group beacon
50: central processing module
60: monitoring device
JB: Jib
HIS : Hoist
HK: Hook
TM : Tower Mast
OR: cab

Claims (5)

Doedoe installed on the tower crane, a distance measurement sensor for measuring the distance from the installed position to the load loaded on the hook;
A jib motion sensor for detecting the jib motion of the tower crane;
It is installed in the tower crane, and is installed together with a tilting module linked to the jib motion detection sensor to photograph the load while adjusting the angle according to the movement of the jib, and transmit distance information from the distance measurement sensor to the load measured a load photographing camera configured to receive and perform zoom in or zoom out according to distance information;
A location information acquisition module installed in the tower crane to obtain location information of the tower crane;
Receive real-time video information of the load photographed in conjunction with the load photographing camera, and detect the risk of collision by receiving the location information of the tower crane in conjunction with the location information acquisition module, and detect the risk of collision when the risk of collision occurs. A central processing module that stops the operation of the crane and generates notification information, and
A safety tower crane that is connected to the central processing module and includes a monitoring device that outputs information collected or processed in the central processing module including the image information and notification information so that it can be visually confirmed.
According to claim 1,
The distance measurement sensor and the loaded object shooting camera,
It is installed on a hoist provided on the jib of the tower crane, and the load photographing camera is configured to always photograph the load vertically by adjusting the angle of the tilting module.
According to claim 1,
The location information acquisition module,
A first GPS installed on a tower mast or driver's cab formed on the central axis of the tower crane to generate a fixed position value; and
It includes a second GPS installed at the end of the jib of the tower crane to generate a variable position value,
The central processing module,
The jib position of the tower crane is determined in real time using the fixed position value of the first GPS, the variable position value of the second GPS, the length of the jib, and N-pole information, and the real-time jib positions are adjacent to each other within a set distance. A safety tower crane characterized in that it detects the risk of collision between tower cranes, stops the tower crane, and generates notification information.
According to claim 3,
The monitoring device,
Using the fixed position value of the first GPS of each tower crane, the variable position value of the second GPS, the length of the jib, and the N-pole information, the jib position of each tower crane and the rotation radius of the tower crane are colorized A safety tower crane configured to output, configured to change color for a tower crane in which a risk of collision is expected, so that the operator can easily grasp the situation.
According to claim 1,
The location information acquisition module,
A first group beacon including a plurality of N beacon transceivers installed on the jib of one tower crane at regular intervals, and
Including a second group beacon including a plurality of M beacon transceivers installed on the jib of the other tower crane at regular intervals,
The central processing module,
Calculate the distance between each of the N beacon transceivers of the first group beacon and each of the M beacon transceivers of the second group beacon and detect the risk of collision when calculated within a set range, stop the tower crane, and generate notification information A safety tower crane, characterized in that. (Where N and M are natural numbers)

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