KR101275508B1 - Safety supervision system in tower crane work - Google Patents

Abstract

PURPOSE: A safety supervision system in a tower crane work is provided to improve safety by easily recognizing a person or a dangerous object, through a unit which photographs a surrounding work environment and a unit which measures the weight, size and lifting height of goods and sets and outputs safety operational radius according to the goods. CONSTITUTION: A safety supervision system in a tower crane work includes a crane body(10), an imaging part(20), a display part(30), and a main processing part(40). The crane body is vertically fixed to the ground and comprises a jib horizontally extended on the top. A trolley is comprised in the jib and transports goods as moving backward, forward, up and down. The crane body also comprises a load cell to measure the weight of the goods transported from the trolley. The imaging part is fixed on the jib toward the trolley of the crane body, and transmits an image signal by recognizing the size of the goods automatically by photographing an operational area by the trolley. The display part receives and displays the image signal of the imaging part on a screen. The main processing part sets a safety operational radius automatically when the goods drops, from the image signal and the weight of the goods inputted by the load cell, and delivers a danger sensing signal to the display part to determine and control the continuous operation of the crane body. The main processing part includes a height measurement instrument(41) and a safety operational radius setting unit(43). The height measurement instrument measures the variable height of the goods lifted from the ground. The safety operational radius setting unit calculates and sets the range of the safety operational radius from the height, size and weight of the goods measured by the height measurement instrument, the imaging part and the load cell respectively. [Reference numerals] (10) Crane body; (20) Imaging part; (30) Display part; (31) Image display part; (33) Data display part; (40) Main processing part; (41) Height measurement instrument; (43) Safety operational radius setting unit; (AA) Image signal; (BB) Sensing signal

Description

Tower Crane Work Safety Management System {Safety Supervision System in Tower Crane Work}

The present invention relates to a tower crane work safety management system, and more particularly, to build a safety management system by the imaging equipment to recognize the work safety radius from the operator during the tower crane work on the construction site safety around the construction site A tower crane work safety management system that can prevent accidents very effectively.

In general, in the construction sites of high-rise buildings such as apartments or buildings, tower cranes are installed to facilitate smooth transportation toward the target site by moving various items such as rebar and H beams necessary for construction work up and down, left and right. do.

Looking at the main structure of the tower crane here, the mast is provided with a long vertical extension to the ground, a horizontal jib is installed to be parallel to the ground surface at the top of the mast, the jib is moved in the horizontal and vertical direction and the bottom It consists of a trolley with a hook.

The tower crane is operated by the operator's operation in the control room provided in the jib, and rotates the jib around the mast and carries the goods to be lifted on the hook while moving the trolley linearly and elevating to the target point. Furthermore, in order to transport the goods by manipulating the tower crane, the tower crane is operated by transmitting a work situation to another operator of the control room through a hand signal or a radio from another worker on the ground.

However, in the past, the height of the building is gradually increasing. As a result, the distance between the operator who operates the tower crane and the operator who signals on the ground in the control room is far from practical, and the work order by the hand signal is difficult. Since the blind area is extended, the operation operation is inconvenient as well as the work efficiency is significantly reduced, and above all, there is a problem that the risk of safety accidents remain.

As a conventional technology disclosed for solving the above problems, Korean Patent Application Publication No. 75826 (2001.08.11.) Of the Korean Intellectual Property Office, in the tower crane used in the construction industry, a guide rail at the bottom of the boom of the tower crane To install a rotating surveillance camera and connect it with a monitor and controller in the driver's seat, guard post and situation room of the tower crane by interlocking circuit and telephone line to secure the tower crane according to the safety operation and remote security monitoring function of the tower crane. It is known that the safety operation monitoring device of the tower crane is characterized in that it can be operated safely without leaving a separate number of signals in operation and to prevent safety accidents by eliminating blind spots.

However, in the case of the conventional tower crane, the worker who is working on the surrounding ground unknowingly or the worker who is working at random while securing the safety distance with the tower crane or the person who is near the site without knowing whether the work by the tower crane is in progress. There is a problem in that it is difficult to reliably prevent safety accidents such as human injury from falling accidents of articles that can occur frequently during transportation of the article.

Therefore, it provides information to workers so that the safety distance radius does not affect the safety accidents when falling from the load, size, and lifting height of the goods being carried by the tower crane. There is an urgent need to develop a safety management system that can be reliably prevented.

The present invention is to solve the above problems, the means of photographing the surrounding working environment based on the goods being carried by the tower crane and measuring the load, size, lifting height of the goods being transported and work safety radius according to the goods It is easy to work and can recognize people or dangerous goods within the working safety radius area, which prevents accidents and greatly improves safety. To provide a tower crane work safety management system that can be made, the purpose is.

The tower crane work safety management system proposed by the present invention is provided with a jib fixedly installed standing upright on the ground and extending in the horizontal direction on the upper part, and the trolley is moved to move the goods back and forth and up and down. A crane body provided with a load cell configured to measure a load of an article carried from the trolley; An image unit fixedly installed on the jib to direct toward the trolley of the crane body and automatically photographing the work area by the trolley to automatically recognize the size of the article and transmitting an image signal; A display unit which receives an image signal of the image unit and outputs the image signal on a screen; Risk detection on the display unit to automatically set the work safety radius when the article falls from the image signal of the image unit and the load of the article input by the load cell and to determine whether to control the continuous operation of the crane body A main processor for transmitting a signal, wherein the main processor includes a height measurer that calculates and measures a variable height of an object lifted from the ground, and is measured by the height measurer, the image unit, and the load cell, respectively. It comprises a safety radius setter for calculating and setting the range of the working safety radius from the height, size and weight of the article.

The display unit outputs an image signal received from the image unit as it is, or an image display unit for outputting a range of the work safety radius set by the main processor as an image, and a signal measured and set from the main processor according to a separate input. It includes a data display for outputting the pre-stored work status in real time through letters and numbers, respectively.

The display unit receives a signal set by the safety radius setter of the main processing unit and outputs a concentric circle drawing two or more circles having different radii with respect to the goods carried from the crane body for the work safety radius to determine whether there is a boundary. Is made to indicate.

The concentric circles of the display unit may be configured to transmit a boundary line which is divided into a danger zone, a region of interest, and a safety zone according to the radius of the circle around the article.

In addition, the display unit is configured with a speaker for outputting a voice signal, it is also possible to further comprise a voice processing unit for processing a voice signal for the danger detection signal input from the main processing unit.

And it may be configured to further include a control unit for automatically controlling the operation of the crane body in accordance with the danger detection signal transmitted from the main processing unit.

The height measuring unit and the safety radius setting unit of the main processing unit constitute a calculator that adds or subtracts measured values of variable height, size, and weight of the article from previously stored reference values.

According to the tower crane work safety management system according to the present invention, after monitoring the surrounding work environment around the article through the imaging unit and measuring the load and size and lifting height of the article to the width of the debris when the article falls to the ground The work safety radius that is considered is automatically set by the main processor, and images, texts, and detection results are output by the display. It can be easily recognized by workers, preventing safety accidents in advance and maximizing the safety of goods transportation work.

In addition, the tower crane work safety management system according to the present invention uses a portable mobile tablet PC or smartphone as a display unit, so that the safety manager can check the safety situation of the work even on the move, regardless of the place, convenience and efficiency. There is an effect to increase.

In addition, the tower crane work safety management system according to the present invention has an effect that can effectively transmit a message because the voice processing unit is recognizable not only visually but also audibly to a worker or a safety manager.

In addition, the tower crane work safety management system according to the present invention is to configure the control unit for automatically controlling the operation of the crane body according to the detection signal transmitted from the main processing unit to increase the safety of the work and to facilitate the work effect There is.

1 is a front view schematically showing an embodiment according to the present invention.
Figure 2 is a block diagram schematically showing an embodiment according to the present invention.
Figure 3 is an exemplary view schematically showing a display unit in an embodiment according to the present invention.
4 is a block diagram schematically showing another embodiment according to the present invention;
5 is a block diagram schematically showing yet another embodiment according to the present invention.

The present invention is provided with a jib fixedly installed standing upright on the ground vertically extending in the horizontal direction in the upper portion, the jib is provided with a trolley to move the goods back and forth and up and down, and the goods carried from the trolley A crane body having a load cell configured to measure a load thereof; An image unit fixedly installed on the jib to direct toward the trolley of the crane body and automatically photographing the work area by the trolley to automatically recognize the size of the article and transmitting an image signal; A display unit which receives an image signal of the image unit and outputs the image signal on a screen; Risk detection on the display unit to automatically set the work safety radius when the article falls from the image signal of the image unit and the load of the article input by the load cell and to determine whether to control the continuous operation of the crane body A main processor for transmitting a signal, wherein the main processor includes a height measurer that calculates and measures a variable height of an object lifted from the ground, and is measured by the height measurer, the image unit, and the load cell, respectively. Technical features of the tower crane work safety management system including a safety radius setter for calculating and setting the range of the work safety radius from the height, size and weight of the article.

In addition, the display unit outputs the image signal received from the image unit as it is, or an image display unit for outputting the range of the work safety radius set by the main processor as an image, and a signal measured and set from the main processor, including a separate input According to the technical features of the tower crane work safety management system that includes a data display unit for outputting the pre-stored work situation in real time through letters and numbers, respectively.

In addition, the display unit receives a signal set by the safety radius setter of the main processing unit and outputs two or more circles with different radii on the basis of the goods carried from the crane body with respect to the working safety radius to the boundary whether or not Tower crane work safety management system made to represent the features of the technical configuration.

In addition, the concentric circles of the display unit is characterized by the technical features of the tower crane work safety management system which is configured to transmit the boundary line divided into the danger zone, the region of interest, and the safety zone, respectively, according to the radius of the circle around the article.

In addition, the display unit of the present invention is configured a speaker for outputting a voice signal, the technical configuration of the tower crane work safety management system further comprises a voice processing unit for processing the voice signal for the danger detection signal input from the main processing unit It is characterized by.

In another aspect, the present invention is characterized in that the tower crane operation safety management system further comprises a control unit for automatically controlling the operation of the crane body according to the danger detection signal transmitted from the main processing unit.

In addition, the height measuring instrument and the safety radius setter of the main processing unit features a tower crane operation safety management system including a calculator for adding or subtracting the measured values of the variable height, size, and weight of the article from the pre-stored reference value.

Next, a preferred embodiment of the tower crane work safety management system according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of the tower crane work safety management system according to the present invention, as shown in Figures 1 to 3, the crane body 10, the image unit 20, the display unit 30, the height measuring instrument ( 41) and a main processing unit 40 having a safety radius setter 43.

1 illustrates a stationary tower crane installed to maintain a fixed state on the ground of the tower crane as an example, but the tower crane of the present invention is not limited thereto, and is implemented by applying a movable tower crane that can be moved among tower cranes. It is also possible.

As shown in FIG. 1, the crane body 10 is provided with a jib 11 which is fixed to stand vertically on the ground, is fixed to the ground, is parallel to the ground surface, and is sufficiently long in the horizontal direction.

The jib 11 is provided with a trolley 13 having a structure capable of moving forward and backward or vertically up and down along the longitudinal direction of the jib 11 so as to perform a transportable function by lifting the article 5. do.

A hook 14 having a hook shape is installed at the bottom of the trolley 13 so as to hang the article 5.

The crane body 10 is configured with a load cell 15 to measure the load of the article (5) being lifted and transported from the trolley (13).

The load cell 15 is configured to measure the load and performs a function as a transducer. The load cell 15 converts the output so as to be taken out electrically, thereby converting the current flow into a digital electric signal, thereby outputting the load numerically.

As shown in FIGS. 1 and 2, the imaging unit 20 is fixedly installed on the jib 11 and positioned to direct toward the trolley 13 of the crane body 10 to center the article 5. Shoot the work area. That is, the imaging unit 20 is designed to photograph based on the article 5 being lifted and transported from the trolley 13, but photographing the peripheral portion around the article 5.

The video unit 20 transmits video data. That is, the image unit 20 transmits the image signal of the captured image to the display unit 30 in real time via the main processor 40.

In the imaging unit 20, an image of the article 5 being transported may be photographed and the size of the article 5 may be sensed and automatically recognized.

As the image unit 20, it is preferable to use a closed circuit equipment, that is, a closed circuit television (CCTV).

The image unit 20 has a structure connected to the main processing unit 40 and the display unit 30 by wire or wireless, but is preferably connected by wireless communication.

The image unit 20 may be configured to transmit a satellite signal to the display unit 30 after passing through the image signal to the satellite.

The imaging unit 20 may be configured to be manipulated to be photographed in various directions by an operator, and the imaging unit 20 may zoom in and zoom out by partially changing a focal length in a shooting range. It is also possible to configure the function to be possible.

As shown in FIGS. 2 and 3, the display unit 30 receives an image signal of the image unit 20 and outputs the image signal on the screen.

The display unit 30 is composed of a PC monitor that is installed in a fixed form, such as the operator's control room and the safety manager's control room.

In addition, the display unit 30 may be configured by using a portable tablet PC or a smartphone, which is portable from an operator or a manager.

As shown in FIG. 3, the display unit 30 is formed by dividing the image display unit 31 and the data display unit 33 according to a form of outputting a signal.

The image display unit 31 outputs the image signal received from the image unit 20 as it is on the screen.

The image display unit 31 may output an image screen captured by the image unit 20 as it is, or may output an image signal captured by the image unit 20 as a satellite picture via a satellite signal. Do.

The image display unit 31 outputs a range of the work safety radius C set by the main processor 40 as an image.

The image display unit 31 of the display unit 30 receives the signal set by the safety radius setter 43 of the main processing unit 40 and outputs the working safety radius C.

The image display part 31 draws two or more circles (three in FIG. 3) having different radii with respect to the work 5 carried from the crane body 10 with respect to the work safety radius C. Output concentrically to indicate the boundary.

The concentric circles, which are output to the image display unit 31 of the display unit 30 and indicate the work safety radius C, are dangerous areas C1, areas of interest C2, and safety according to the radius of the circle around the article 5. It is made to transmit a boundary line, each divided into regions C3.

For example, by outputting three concentric circles to the image display unit 31, the circle closest to the circle 5 based on the article 5 being carried by the crane body 10 is indicated by the boundary of the dangerous area C1. The distance to the adjacent circle is indicated by the boundary line of the area of interest C2, and after the last circle is indicated by the boundary line of the safety area C3.

The boundary lines of the concentric circles may be configured to be output to the image display unit 31 of the display unit 30 in different colors.

For example, the boundary line of the danger zone C1 of the concentric circles is output in red, the boundary line of the region of interest C2 is output in yellow, and the boundary line of the safety zone C3 is output in green.

The data display unit 33 outputs the signals measured and set from the main processing unit 40 through letters and numbers, and also outputs the pre-stored work situations through letters and numbers in real time according to input of separate data. It is provided to output.

The work situation output to the data display unit 33 as described above, including the basic work information previously stored according to the input such as the work site, time, worker, work day, the highest height of the crane body 10, the current indoor and outdoor temperature, wind direction Work environment information such as wind speed and wind speed is output. In addition, the data display unit 33 of the display unit 30 includes measurement information such as the height of the work article, the weight of the work article, the volume (width) of the work article, and setting information such as the working time and the safety range when the article falls. Is output, and outputs a risk detection (risk radius entry) according to the image unit 20.

The main processing unit 40 transmits a signal to the display unit 30 after performing the function of measuring and setting according to the signal input from the image unit 20.

The main processor 40 may be safe when the article 5 falls and falls during operation from the image signal of the image unit 20 and the load of the article 5 input by the load cell 15. The height measuring device 41 and the safety radius setting device 43 are configured to automatically set the working safety radius C.

The height measuring unit 41 and the safety radius setting unit 43 of the main processing unit 40 are provided with a calculator (not shown in the drawing) which adds or subtracts measured values of variable height, size, and weight of the article from previously stored reference values. .

The height measuring unit 41 calculates and measures by the calculator to recognize the variable height of the article 5 lifted from the ground in the main processing unit 40.

The height measuring unit 41 subtracts the numerical value measuring the distance from the image unit 20 to the article 5 from the highest height of the prestored crane body 10.

The safety radius setter 43 is the work safety radius (C) from the height, size and weight of the article (5) measured by the height measuring unit 41, the image unit 20 and the load cell 15, respectively. ) Range is calculated by the operator.

For example, when the measured value of the height, size and weight of the article 5 is relatively large, the range of the work safety radius C is set wide, and when the measured value is relatively small, the work safety radius C is small. The range of is narrowly set.

The range set by the safety radius setter 43 signals an image and a number to the image display unit 31 and the data display unit 33 of the display unit 30, respectively.

The main processor 40 transmits a danger detection signal to the display unit 30 so that the operator can determine and control whether the crane body 10 is continuously operated.

For example, when an object or a person is not detected from the image unit 20 within the range of the work safety radius C set by the safety radius setter 43 of the main processor 40, a danger detection signal is transmitted. By the character "safe" to be output to the display unit 30, the unidentified object that is not confirmed within the range of the working safety radius (C) set from the safety radius setter 43 of the main processing unit 40 or When a person is present and detected from the image unit 20, a dangerous signal is transmitted toward the display unit 30 to output a letter “risk” so that the operation of the crane body 10 can be stopped by an operator. Will be.

That is, according to the tower crane work safety management system according to the present invention configured as described above, by monitoring the surrounding work environment around the article (5) through the image unit 20 and the load and size and After measuring the lifting height, when the article 5 falls to the ground, the work safety radius (C) is automatically set in the main processing unit 40 considering the width of the debris, and the display unit 30 displays images, texts, and detection results. Since the operator's equipment is easy to operate, it can improve the work efficiency and the worker can easily recognize the unidentified objects or people existing in the area of the work safety radius (C) to prevent safety accidents and to ensure the safety of the goods handling work. It is possible to maximize.

In addition, the present invention uses a portable mobile tablet PC or smart phone as the display unit 30, so that the safety manager can check the safety situation of the work even on the move, regardless of the place, it is possible to increase the convenience and efficiency Do.

And another embodiment of the tower crane work safety management system according to the present invention, as shown in Figure 4, further comprises a voice processing unit 50 for processing a voice signal for the danger detection signal input from the main processing unit 40 It is done by

The display unit 30 includes a speaker 51 for outputting a voice signal of the voice processing unit 50.

The voice processing unit 50 displays the danger detection signal on the display unit 30 as text data and also outputs the sound through the speaker 51.

That is, when the present invention is configured as in the above-described exemplary embodiment, the voice processing unit 50 is configured to be recognized not only visually but also audibly to an operator or a safety manager, so that a message can be transmitted very effectively.

In the other embodiments described above, the same configuration as that of the above-described embodiment can be employed, so that detailed description is omitted.

And another embodiment of the tower crane work safety management system according to the present invention, as shown in Figure 5, according to the danger detection signal transmitted from the main processing unit 40 automatically whether the operation of the crane body (10) It further comprises a control unit 60 for controlling.

For example, the controller 60 transmits a "safety" state to the display unit 30 when the unidentified object is not detected within the work safety radius C while the goods 5 are being transported. While maintaining the operating state of the crane body 10, while conveying the goods (5) while the unidentified object is detected within the work safety radius (C) while transmitting the "danger" state to the display unit 30 while Control to stop the operating state of the crane body 10 automatically.

In addition, the control unit 60 may be controlled to automatically stop the operation of the crane body 10 when the danger detection signal is input, and at the same time to output a guide broadcast informing the "danger" status toward the workplace.

The controller 60 automatically stops the operation of the crane main body 10 according to the danger detection signal transmitted from the main processing unit 40, and then automatically detects the safety state when the detection signal is transmitted to the crane main body 10. It is preferable to configure to control the reactivation of.

That is, when the present invention is configured as in the other exemplary embodiment described above, the controller 60 may be configured to automatically control the operation of the crane main body 10 according to the detection signal transmitted from the main processing unit 40 to improve the safety of the work. It is possible to promote and to facilitate the work.

Also in the above-described other embodiments, the present invention can be implemented in the same configuration as the above-described embodiment except for the above-described configuration, and thus detailed description thereof will be omitted.

In the above, a preferred embodiment of the tower crane work safety management system according to the present invention has been described, but the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible and this also belongs to the scope of the present invention.

5: article 10: crane body 11: jib
13: trolley 14: hook 15: load cell
20: image portion 30: display portion 31: image display portion
33: data display section 40: main processing section 41: height measuring instrument
43: safety radius setting device 50: voice processing unit 51: speaker
60: control part C: work safety radius C1: hazardous area
C2: Area of Interest C3: Safe Area

Claims (7)

The jib is fixedly installed standing upright on the ground, and is provided with a jib extending in the horizontal direction at the top, the jib is provided with a trolley to move the goods back and forth and up and down and to carry the load of the goods carried from the trolley A crane body configured to measure a load cell;
An image unit fixedly installed on the jib to direct toward the trolley of the crane body and automatically photographing the work area by the trolley to automatically recognize the size of the article and transmitting an image signal;
A display unit which receives an image signal of the image unit and outputs the image signal on a screen;
Risk detection on the display unit to automatically set the work safety radius when the article falls from the image signal of the image unit and the load of the article input by the load cell and to determine whether to control the continuous operation of the crane body It includes; main processing unit for transmitting a signal,
The main processing unit includes a height measuring instrument for calculating and measuring a variable height of the object lifted from the ground, and the work from the height, size and weight of the article measured by the height measuring instrument, the image unit and the load cell, respectively Tower crane operation safety management system comprising a safety radius setter for calculating and setting the range of the safety radius.
The method according to claim 1,
The display unit outputs the image signal received from the image unit as it is, or an image display unit for outputting a range of the work safety radius set by the main processor as an image, and a signal measured and set from the main processor, including a separate input. According to the tower crane operation safety management system, characterized in that it comprises a data display for outputting the pre-stored working conditions in real time through letters and numbers, respectively.
The method according to claim 1,
The display unit receives a signal set by the safety radius setter of the main processing unit and outputs a concentric circle drawing two or more circles having different radii with respect to the goods carried from the crane body for the work safety radius to determine whether there is a boundary. Tower crane operation safety management system, characterized in that made to show.
The method according to claim 3,
The concentric circle of the display unit is a tower crane work safety management system, characterized in that made to transmit the boundary line divided into a danger zone, a region of interest, and a safety zone, respectively, according to the radius of the circle around the article.
The method according to claim 1,
The display unit is configured with a speaker for outputting a voice signal, the tower crane work safety management system, characterized in that further comprising a voice processing unit for processing the voice signal to the danger detection signal input from the main processing unit.
The method according to claim 1,
Tower crane operation safety management system, characterized in that further comprising a control unit for automatically controlling the operation of the crane body according to the danger detection signal transmitted from the main processing unit.
The method according to claim 1,
The height measuring instrument and the safety radius setter of the main processing unit, the tower crane work safety management system, characterized in that it comprises a calculator for adding or subtracting the measured value of the variable height, size, weight of the article from the pre-stored reference value.

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