KR102451479B1 - Smart safety system and control method of connection management device for detecting connection status of tower crane - Google Patents

Abstract

Disclosed are a smart safety system for detecting the connection state of a tower crane and a control method of a fastening management device. According to the present invention, the smart safety system for detecting the connection state of one or more masts and a turntable making up a tower crane comprises: a detection device detecting the fastening state of a fixing device for fixing the connection between a first mast among the one or more masts and the turntable or the first mast and a second mast; and a fastening management device providing information related to the fastening state of the fixing device for fixing the connection between the first mast and the turntable or the first and second masts based on detection information detected through the detection device. Accordingly, the present invention can minimize the possibility of fall accidents of tower cranes caused by various factors.

Description

Smart safety system and control method of connection management device for detecting connection status of tower crane

The present invention relates to a tower crane, and more particularly, to a smart safety system for detecting a connection state of a tower crane, and a control method of a fastening management device.

In general, tower cranes are widely used for port unloading or construction of high-rise buildings, and are mainly used for bulk work and spool holding in plant construction. Such a tower crane has a structure in which a turntable and a plurality of masts are connected. Therefore, when the turntable and the plurality of masts are abnormally fastened or unfastened for connection and fixation, the tower crane is overturned by external environmental factors such as wind, typhoons, or work elements that transport workpieces such as masts. Accidents happen often.

In order to improve this problem, in the prior art, various technologies for a fixing device and a safety device for fixing a connection between a turntable and a plurality of masts have been developed. Nevertheless, there is a problem that the possibility of a rollover accident still exists due to the repetitive operation of the tower crane, the carelessness of the person in charge of fastening the fixing device, and external environmental factors.

Therefore, there is an urgent need for a realistic and applicable technology that can minimize the possibility of such a tower crane overturning accident.

Republic of Korea Utility Model Publication No. 20-0394923 'Fixing device of tower crane' (Registration date August 31, 2005)

The present invention has been devised in accordance with the above-described needs, and an object of the present invention is to prevent a fall accident due to an abnormal connection state between a turntable, a mast, and a telescoping cage constituting a tower crane.

A turntable constituting a tower crane according to an embodiment of the present invention for achieving the above object and a smart safety system for detecting the connection state of at least one mast are the first mast and the turntable of the at least one mast. or a detection device for detecting a fastening state of a fixing device for fixing a connection between the first mast and the second mast, and the first mast and the turntable or the first and and a fastening management device for providing information related to a fastening state of the fastening device for fixing the connection between the second masts.

In addition, the fixing device is inserted into a pin hole formed in each of the first and second mast posts and the turntable post to fix the connection between the first mast and the turntable or the first and second masts. and at least one of a pin and a nut fastened to the fixing pin, wherein the sensing device is installed at a point adjacent to a pin hole formed in each of the first and second mast posts and is inserted through the pin hole. It may include a proximity sensor for detecting the end or the nut fastened to the end of the fixing pin.

In addition, the fixing device may include fixing the connection between the first mast and the turntable or the first and second masts by inserting them into pin holes formed in each of the first and second mast posts and the turntable posts. a pin and a nut fastened to the fixing pin inserted into the pin hole, wherein the sensing device is installed at a point adjacent to the pin hole formed in each of the first and second mast posts to output an optical signal, and the nut It may include a photoelectric sensor for detecting the reception of the output optical signal through a reflector attached to one side of the.

In addition, the fixing device is inserted into a pin hole formed in each of the first and second mast posts and the turntable post to fix the connection between the first mast and the turntable or the first and second masts. It includes a pin and a nut fastened to the fixing pin inserted into the pin hole, and the sensing device may include a vibration detection sensor attached to one side of the nut to detect a vibration state of the nut.

The apparatus may further include a telescoping cage for stacking a third mast between the first mast and the turntable by elevating the turntable, wherein the sensing device is located outside two of the turntable columns. Or a proximity formed on the upper surface of the fastening part of the telescoping cage fastened corresponding to each of a pair of ribs formed on the outside of two of the at least one mast post to detect whether the fastening part is close to the two posts It may include a sensor.

and a photographing device installed around the sensing device to photograph an area to which the fixing device is fastened, wherein the fastening management device includes a communication unit configured to perform data communication with at least one of the photographing device and the sensing device; A fixing device that is abnormally fastened by determining a fastening state of the plurality of fixing devices based on a display unit that displays a plurality of images captured by the photographing device on a single screen and sensing information received through the sensing device and a controller for controlling the display unit to output an image corresponding to , different from the other images.

In addition, the fastening management apparatus further includes a user input unit, wherein the control unit displays the first image on a full screen when a first user command for a first image among the plurality of images is input through the user input unit. It is possible to control the display unit to display on the.

In addition, when a second user command for the selected image from among the plurality of images or the first image displayed on the entire screen is input, the controller is configured to select the selected image or the selected image in a size corresponding to the second user command. The display unit may be controlled to display the first image by zooming in/out.

In addition, when an image captured by the photographing device is received, the controller may perform image analysis on each of the received images using a feature point analysis algorithm to determine whether the fixing device is normally fastened. have.

And, when the abnormally fastened fixing device is detected, the control unit may transmit tower crane status information including identification information on the abnormally fastened fixing device to the integrated management server through the communication unit.

Meanwhile, according to another embodiment of the present invention, a control method of a turntable constituting a tower crane and a fastening management device for detecting a connection state of at least one mast includes a first mast of the at least one mast and the turntable or Receiving sensing information from a sensing device for detecting a fastening state of a fixing device for fixing the connection between the first mast and the second mast, based on the received sensing information, the first mast and the turntable or the first and determining a connection state between the first and second masts, and providing connection state information on an abnormally fastened fixing device based on the determined result.

In addition, the fixing device is inserted into a pin hole formed in each of the first and second mast posts and the turntable post to fix the connection between the first mast and the turntable or the first and second masts. and at least one of a pin and a nut fastened to the fixing pin, wherein the sensing device is installed at a point adjacent to a pin hole formed in each of the first and second mast posts and the connecting pin inserted through the pin hole It may be a proximity sensor for detecting the end of the nut or a nut fastened to the end of the fixing pin.

In addition, the fixing device may include fixing the connection between the first mast and the turntable or the first and second masts by inserting them into pin holes formed in each of the first and second mast posts and the turntable posts. a pin and a nut fastened to the fixing pin inserted into the pin hole, wherein the sensing device is installed at a point adjacent to the pin hole formed in each of the first and second mast posts to output an optical signal, and the nut It may be a photoelectric sensor that detects reception of the output optical signal through a reflector attached to one side of the .

In addition, the fixing device is inserted into a pin hole formed in each of the first and second mast posts and the turntable post to fix the connection between the first mast and the turntable or the first and second masts. It includes a pin and a nut fastened to the fixing pin inserted into the pin hole, and the sensing device may be a vibration detection sensor attached to one side of the nut to detect a vibration state of the nut.

In addition, the tower crane further includes a telescoping cage for stacking a third mast between the first mast and the turntable by raising the turntable, and the sensing device includes: the turntable pillar Is formed on the upper surface of the fastening part of the telescoping cage fastened corresponding to each of the pair of ribs formed on the outside of the two pillars or the outside of the two of the at least one mast pillar, whether the fastening part is close to the two pillars It may be a proximity sensor that detects whether the

And, further comprising the step of displaying on one screen a plurality of images captured by a photographing device installed around the detection device and photographing an area to which the fixing device is fastened, the providing step includes: the detection The fastening state of the plurality of fixing devices may be determined based on the sensing information received through the device, and an image corresponding to the abnormally fastened fixing device may be output differently from the rest of the images.

In addition, the displaying may include displaying the first image on the entire screen when a first user command for a first image among the plurality of images is input.

In addition, the displaying may include, when a second user command for the selected image or the first image displayed on the entire screen is input from among the plurality of images, the selected image in a size corresponding to the second user command Alternatively, the first image may be displayed by zooming in/out.

In addition, in the determining step, when an image captured by the photographing device is received, image analysis is performed on each of the received images using a feature point analysis algorithm to determine whether the fixing device is normally fastened can do.

And, when the abnormally fastened fixing device is detected, the method may further include transmitting tower crane status information including identification information on the abnormally fastened fixing device to the integrated management server through the communication unit.

As described above, according to various embodiments of the present invention, the smart detection system can monitor the connection state between the turntable, the mast, and the telescoping cage constituting the tower crane in real time, and based on the monitored result, quickly abnormally It is possible to perform maintenance treatment on the fastened fixing device. Therefore, the present invention can minimize the possibility of overturning accidents of the tower crane that may occur depending on various factors.

1 is an exemplary view showing a tower crane according to an embodiment of the present invention;
2 is a smart safety system diagram for a tower crane according to an embodiment of the present invention;
3 is a block diagram of a fastening management device according to the present invention;
4 to 6 are exemplary views in which a sensing device is installed on the mast of a tower crane according to an embodiment of the present invention;
7 is an exemplary view showing the operation of the telescoping cage of the tower crane according to an embodiment of the present invention;
Figure 8 is an exemplary view for detecting the connection state to the telescoping cage of the tower crane according to an embodiment of the present invention;
9 and 10 are exemplary views providing information related to a fastening state according to an embodiment of the present invention;
11 is a flowchart for a control method of a fastening management device for the safety of a tower crane according to an embodiment of the present invention.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. However, this is not intended to limit the technology described in this document to specific embodiments, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments of this document are included. . In connection with the description of the drawings, like reference numerals may be used for like components.

In this document, expressions such as "has," "may have," "includes," or "may include" refer to the presence of a corresponding characteristic (eg, a numerical value, function, operation, or component such as a part). and does not exclude the presence of additional features.

In this document, expressions such as "A or B," "at least one of A and/and B," or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B," "at least one of A and B," or "at least one of A or B" means (1) includes at least one A, (2) includes at least one B; Or (3) it may refer to all cases including both at least one A and at least one B.

As used herein, expressions such as "first," "second," "first," or "second," may modify various elements, regardless of order and/or importance, and refer to one element. It is used only to distinguish it from other components, and does not limit the components.

A component (eg, a first component) is "coupled with/to (operatively or communicatively)" to another component (eg, a second component) When referring to "connected to", it should be understood that the certain element may be directly connected to the other element or may be connected through another element (eg, a third element). On the other hand, when it is said that a component (eg, a first component) is "directly connected" or "directly connected" to another component (eg, a second component), the component and the It may be understood that other components (eg, a third component) do not exist between other components.

As used herein, the expression "configured to (or configured to)" depends on the context, for example, "suitable for," "having the capacity to ," "designed to," "adapted to," "made to," or "capable of." The term “configured (or configured to)” may not necessarily mean only “specifically designed to” in hardware. Instead, in some circumstances, the expression “a device configured to” may mean that the device is “capable of” with other devices or parts. For example, the phrase “a processor configured (or configured to perform) A, B, and C” refers to a dedicated processor (eg, an embedded processor) for performing the operations, or by executing one or more software programs stored in a memory device. , may mean a generic-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

The electronic device according to various embodiments of the present disclosure may include, for example, a smartphone, a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, a server, a PDA, and a PMP. It may include at least one of a portable multimedia player, an MP3 player, a medical device, a camera, and a wearable device. A wearable device may be an accessory (e.g., watch, ring, bracelet, anklet, necklace, eyewear, contact lens, or head-mounted-device (HMD)), a textile or clothing integral (e.g. electronic garment); It may include at least one of a body-worn (eg, skin pad or tattoo) or bioimplantable circuit In some embodiments, the electronic device may include, for example, a television, a digital video disk (DVD) player, Audio, refrigerator, air conditioner, vacuum cleaner, oven, microwave oven, washing machine, air purifier, set-top box, home automation control panel, security control panel, media box (e.g. Samsung HomeSyncTM, Apple TVTM, or Google TVTM), game console (eg, Xbox™, PlayStation™), an electronic dictionary, an electronic key, a camcorder, or an electronic picture frame.

In another embodiment, the electronic device may include various medical devices (eg, various portable medical measuring devices (eg, a blood glucose meter, a heart rate monitor, a blood pressure monitor, or a body temperature monitor), magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), Computed tomography (CT), imagers, or ultrasound machines, etc.), navigation devices, global navigation satellite systems (GNSS), event data recorders (EDRs), flight data recorders (FDRs), automotive infotainment devices, marine electronic equipment (e.g. navigation devices for ships, gyro compasses, etc.), avionics, security devices, head units for vehicles, industrial or household robots, drones, ATMs in financial institutions, point of sale (POS) in stores of sales) or IoT devices (eg, light bulbs, various sensors, sprinkler devices, fire alarms, thermostats, street lights, toasters, exercise equipment, hot water tanks, heaters, boilers, etc.).

In this document, the term user may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) using the electronic device.

1 is an exemplary view showing a tower crane according to an embodiment of the present invention, Figure 2 is a smart safety system diagram for the tower crane according to an embodiment of the present invention.

As shown in FIG. 1 , the tower crane includes a mast 10 , a turn table 20 and a telescoping cage 30 .

Specifically, the tower crane is connected to a plurality of masts 10 on a basic anchor, and the mast 10 located at the top of the connected plurality of masts 10 and the turntable 20 are fastened. The turntable 20 transports the new mast 10' in order to connect the new mast 10' on the cockpit 22 where the driver for steering the tower crane will ride and the plurality of masts 10 connected to each other. It may include a transfer unit 21 for

Meanwhile, the transfer unit 21 may move vertically and horizontally through the rail 23 of the turntable 20 . A counterweight for maintaining the balance of the tower crane may be disposed at the rear of the rail 23 for the movement of the transfer unit 21 .

Meanwhile, the smart safety system 1000 may detect a connection state between the plurality of masts 10 and the turntable 20 constituting the above-described tower crane. As shown in FIG. 2 , the smart safety system 1000 includes a sensing device 100 , a photographing device 200 , a fastening management device 300 , and a fixing device 400 .

The fixing device 400 includes a first mast 10-1 and a turntable 20 or a first mast 10-1 and a second mast 10-2 among at least one mast 10 constituting the tower crane. ) to fix the connection between

The sensing device 100 detects the fastening state of the fixing device 400 , and the photographing device 200 is installed around the sensing device 100 to photograph an area to which the fixing device 400 is fastened.

The fastening management device 300 may include the first mast 10-1 and the turntable 20 or the first and second masts 10-1 and 10-2 based on the detection information sensed through the detection device 100. ) to provide information related to the connection status between Meanwhile, when image information captured through the photographing device 200 is received, the fastening management apparatus 300 may display a plurality of images corresponding to the received image information on one screen. In addition, the fastening management apparatus 300 provides a connection state between the first mast 10-1 and the turntable 20 or the first and second masts 10-1 and 10-2 based on the received image information. You can provide relevant information.

According to an embodiment, the sensing device 100 may include a proximity sensor 100 - 1 . Specifically, the fixing device 400 is inserted into the pin holes formed in each of the first and second masts 10-1 and 10-2 and the turntable 20, the first mast 10-1 and the turn At least one of a fixing pin 410 for fixing the connection between the table 20 or the first and second masts 10-1 and 10-2 and a nut 420 fastened with the fixing pin 410 may be included. have. Accordingly, the sensing device 100 is fixed inserted through the pin hole through the proximity sensor 100-1 installed at a point adjacent to the pin hole formed in each of the first and second masts 10-1 and 10-2. The nut 420 fastened to the end of the pin 410 or the end of the fixing pin 410 may be detected.

According to another embodiment, the sensing device 100 may include a photoelectric sensor 100 - 2 . Specifically, the fixing device 100 is inserted into the pin holes formed in each of the first and second masts 10-1 and 10-2 columns and the turntable 20, the first mast 10-1 and the turn It includes a fixing pin 410 for fixing the connection between the table 20 or the first and second masts 10-1 and 10-2, and a nut 420 fastened with the fixing pin 410 inserted into the pin hole. can do. Meanwhile, a reflecting plate 430 may be attached to one side of the nut 420 . Accordingly, the sensing device 100 outputs an optical signal through the photoelectric sensor 100-2 installed at a point adjacent to the pin hole formed in each of the first and second masts 10-1 and 10-2, and the nut Reception of the corresponding optical signal may be detected through the reflector 430 attached to one side of the 420 .

According to another embodiment, the sensing device 100 may include a vibration sensor 100 - 3 . Specifically, the fixing device 100 is inserted into the pin holes formed in each of the first and second masts 10-1 and 10-2 columns and the turntable 20, the first mast 10-1 and the turn It includes a fixing pin 410 for fixing the connection between the table 20 or the first and second masts 10-1 and 10-2, and a nut 420 fastened with the fixing pin 410 inserted into the pin hole. can do. Meanwhile, a vibration sensor 100 - 3 may be attached to one side of the nut 420 . Accordingly, the sensing device 100 detects the vibration state of the nut 420 through the vibration sensor 100 - 3 attached to one side of the nut 420 .

Meanwhile, the aforementioned proximity sensor 100 - 1 may be formed on the upper surface of the fastening part 31 of the aforementioned telescoping cage 30 . Here, the fastening portion 31 of the telescoping cage 30 is fastened with a pair of ribs 12 formed outside two of the pillars of the turntable 20 or outside of two of the mast pillars. Accordingly, the proximity sensor 100-1 raises the turntable 20 through the telescoping cage 30, and the third mast 10-3 is positioned between the turntable 20 under the first mast 10-1. When stacking the turntable 20, a pair of ribs 12 formed on the outside of two of the pillars or on the outside of two of the at least one mast pillar are connected to the fastening part 31 of the telescoping cage 30 and You can detect if it is fastened.

Accordingly, when sensing information is received from the sensing device 100 through the above-described embodiment, the fastening management device 300 determines the fastening state of the fixing device 400 based on the received sensing information, and is based on the result of the determination. connection state related information may be provided.

Such a fastening management apparatus 300 may be configured as shown in FIG. 3 .

3 is a block diagram of a fastening management apparatus according to the present invention.

As shown in FIG. 3 , the fastening management apparatus 300 includes a communication unit 310 , a user input unit 320 , a display unit 330 , an audio output unit 340 , and a control unit 350 .

The communication unit 310 is installed around the sensing device 100 and performs data communication with at least one of the imaging device 200 and the sensing device 100 for photographing the fixed device 400 . In addition, the communication unit 310 may perform data communication with an integrated management server (not shown) that monitors and controls all tower cranes.

The communication unit 310 includes, according to an embodiment, a wireless communication module such as a short-range communication module and a wireless LAN module, a High-Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB), and an Institute of Electrical and Electronics Engineers (IEEE). ) may include a connector including at least one of wired communication modules such as 1394.

The short-distance communication module includes the fastening management device 300 and the sensing device 100 and the photographing device 200 located in a short distance, the integrated management server (not shown), the user terminal device (not shown) of the driver who controls the tower crane, etc. It is a configuration that performs short-distance communication with The short-distance communication module may include at least one of a Bluetooth module, an infrared data association (IrDA) module, a near field communication (NFC) module, a WIFI module, and a Zigbee module. .

In addition, the wireless communication module is a module for performing communication by being connected to an external network according to a wireless communication protocol such as IEEE. In addition, the wireless communication module is a mobile communication that performs communication by accessing a mobile communication network according to various mobile communication standards such as 3G to 5G (3rd to 5th generation), 3GPP (3rd Generation Partnership Project), and LTE (Long Term Evoloution). It may further include a module.

As such, the communication unit 310 may be implemented by the various short-distance communication methods described above, and other communication technologies not mentioned herein may be employed as necessary.

On the other hand, the connector is a configuration that provides an interface with various source devices, such as USB 2.0, USB 3.0, HDMI, IEEE 1394. Such a connector may perform data communication with the sensing device 100 , the photographing device 200 , and the integrated management server (not shown) through a wired cable connected to the connector according to a control command from the controller 350 , which will be described later. Also, the connector may receive power from a power source through a wired cable physically connected to the connector.

The user input unit 320 receives various user commands. Such a user input unit 320 is an operation unit (not shown) implemented as a keypad (Key Pad) having a microphone (not shown) for receiving a user's voice command, various function keys, number keys, special keys, character keys, etc.; It may include a touch input unit (not shown) that receives a user's touch command through the display unit 330, which will be described later.

The display unit 330 displays at least one image among a plurality of images captured by the photographing apparatus 200 on one screen. The display unit 330 may be implemented as a liquid crystal display (LCD), an organic light emitting diode (OLED), or the like. In particular, the display unit 330 may be implemented in the form of a touch screen forming a mutually layered structure together with a touch input unit (not shown) that receives a user's touch command as described above.

The audio output unit 340 outputs various audio data in the form of audible sounds. In particular, when the fixing device 400 is abnormally fastened, the audio output unit 340 may output an abnormal fastening related notification message in audio format.

The controller 350 controls the overall operation of each component constituting the fastening management apparatus 300 . In particular, the controller 350 determines the fastening state of the plurality of fixing devices 400 based on the detection information received through the sensing device 100 to display an image corresponding to the abnormally fastened fixing device 400 to the remaining images. and control the display unit 330 to output differently.

According to an additional aspect of the present invention, the control unit 350 through the user input unit 320 in a state in which the first image corresponding to the abnormally fastened fixing device 400 among the plurality of images is output differently from the rest of the images. When a user command for the first image is input, the display unit 330 may be controlled to display the first image on the entire screen.

According to an additional aspect of the present invention, when a second user command for a selected image from among a plurality of images or a first image displayed on the entire screen is input, the controller 350 may control an image selected with a size corresponding to the second user command. Alternatively, the display unit 330 may be controlled to display the first image by zooming in/out.

According to an additional aspect of the present invention, when an image photographed through the photographing apparatus 200 is received, the controller 350 performs image analysis on each image received using a feature point analysis algorithm to perform an image analysis on the fixed apparatus 400 . It can be determined whether or not the Here, the key point analysis algorithm is an algorithm for detecting the key point of the object in order to recognize the object included in the image. Since the key point analysis-related technology is a known technology, a detailed description thereof will be omitted in the present invention.

According to an additional aspect of the present invention, when the controller 350 detects the abnormally fastened fixing device 400 , the communication unit 310 provides identification information on the abnormally fastened fixing device to the integrated management server (not shown). Tower crane status information including

Hereinafter, an operation in which the sensing device 100 and the photographing device 200 are installed on the mast 10 of the tower crane according to the present invention will be described in detail.

4 to 6 are exemplary views in which a sensing device is installed on the mast of a tower crane according to an embodiment of the present invention.

According to an embodiment, when the proximity sensor 100-1 is installed on the mast 10, the proximity sensor 100-1 is located above the pin hole into which the fixing pin 410 of the fixing device 400 is inserted. can be formed. As shown in (a) of Figure 4, the first and second masts (10-1, 10-2) each of the pillars may be formed with pin holes, the fixing device 400 is the first and second The masts 10-1 and 10-2 may be inserted into pin holes formed in the pillars, respectively. Accordingly, the first and second masts 10 - 1 and 10 - 2 may be connected in a fixed state by the fixing device 400 . In addition, the proximity sensor 100 - 1 may be formed above the pin hole formed in each of the first and second masts 10 - 1 and 10 - 2 .

Specifically, as shown in (b) of FIG. 4 , when the first pillar of the first mast 10-1 and the first pillar of the second mast 10-2 are connected, each first pillar The pin holes formed in the can overlap each other. Accordingly, the fixing pin 410 of the fixing device 400 may be inserted into the pin hole formed in each of the first pillars, and the end of the fixing pin 410 inserted into the pin hole is to be fastened with the nut 420 . can Accordingly, the fixing pin 410 inserted into the pin hole may be maintained in a state fixed to the pin hole by the fixing pin 410 and the nut 420 fastened thereto.

On the other hand, the proximity sensor 100-1 is formed on the upper side of the pin hole formed in the first pillar of the first mast 10-1 to periodically transmit a signal, and a response time of receiving a reflected signal to the transmitted signal and transmits the sensed information to the fastening management device 300 . When such detection information is received, the controller 350 of the fastening device 300 determines whether the value of the received detection information is less than or equal to a preset threshold value, and determines whether the first and second masts 10-1 and 10-2 ), it may be determined whether the fixing device 400 for fixing the connection between the first pillars is fastened.

If the value of the received detection information exceeds a preset threshold value, the control unit 350 determines whether the value of the received detection information is less than or equal to the preset threshold value to determine whether the first and second masts 10-1, 10-1, 10-2), it may be determined that the fixing device 400 for fixing the connection between the first pillars is not fastened.

On the other hand, the photographing device 200 may be formed above the region where the proximity sensor 100 - 1 is formed, and the photographing apparatus 200 is mounted on the first and second masts 10 - 1 by the fixing device 400 . ,10-2), the area in which the connection between the first pillars is fixed is photographed and transmitted to the fastening management device 300 . Accordingly, the display unit 330 may display the image photographed by the photographing device 200 on the screen, and the driver who operates the tower crane intuitively uses the displayed image to display the first and second masts 10 . You can check the connection status between -1,10-2). In addition, when an image captured by the photographing device 200 is received, the control unit 350 determines whether the fixing device 400 is normally fastened by analyzing the received image, and displays information related to the fastening state accordingly to the display unit ( 330) and the audio output unit 340 may be provided through at least one.

According to another embodiment, when the photoelectric sensor 100-2 is installed in the mast 10, the photoelectric sensor 100-2 is located above the pin hole into which the fixing pin 410 of the fixing device 400 is inserted. can be formed in As shown in (a) of FIG. 5 , the first and second masts 10 - 1 and 10 - 2 may be connected in a fixed state by a fixing device 400 . In addition, the photoelectric sensor 100 - 2 may be formed above a pin hole formed in each of the first and second masts 10 - 1 and 10 - 2 . Specifically, when the first pillar of the first mast 10-1 and the first pillar of the second mast 10-2 are connected, pin holes formed in each of the first pillars may overlap each other. Accordingly, the fixing pin 410 of the fixing device 400 may be inserted into the pin hole formed in each of the first pillars, and the end of the fixing pin 410 inserted into the pin hole is to be fastened with the nut 420 . can Accordingly, the fixing pin 410 inserted into the pin hole may be maintained in a state fixed to the pin hole by the fixing pin 410 and the nut 420 fastened thereto.

Meanwhile, a reflector 430 for reflecting the photoelectric signal transmitted from the photoelectric sensor 100 - 2 may be attached to one side of the nut 420 . Accordingly, the photoelectric sensor 100 - 2 transmits the photoelectric signal, and then determines whether the signal reflected through the reflector 430 is received. The fixing device 400 including the fixing pin 410 and the nut 420 . It can be determined whether or not the is normally fastened.

The photoelectric sensor 100 - 2 may determine that the fixing device 400 is abnormally fastened when the reflected signal for the transmitted photoelectric signal is not received.

Specifically, as shown in FIG. 5B , the nut 420 fastened to the fixing pin 410 in a state in close contact with the first pillar of the first mast 10-1 is the turntable 20 . It may rotate in one direction according to the left and right movement, and the reflector 430 attached to the nut 420 may move in a direction corresponding to the rotation direction of the nut 420 . In this case, the photoelectric sensor 100 - 2 cannot receive a reflected signal for the transmitted photoelectric signal. When such an event occurs, the photoelectric sensor 100-2 determines that the fixing device 400 including the fixing pin 410 and the nut 420 is abnormally fastened, and transmits the determined detection information to the fastening management device. Send to (300). Accordingly, the control unit 350 of the fastening management apparatus 300 is positioned on the first pillars of the first and second masts 10-1 and 10-2 based on the detection information received from the photoelectric sensor 100-2. It is determined that the fastened fixing device 400 is abnormally fastened, and accordingly, the fastening state related information may be provided through at least one of the display unit 330 and the audio output unit 340 .

According to another embodiment, when the vibration detection sensor 100-3 is installed in the nut 420 fastened with the fixing pin 410 of the fixing device 400, the vibration detection sensor 100-3 is the nut ( 420) to detect the vibration. As shown in (a) of FIG. 6 , the first and second masts 10 - 1 and 10 - 2 may be connected in a fixed state by the fixing device 400 .

Specifically, when the first pillar of the first mast 10-1 and the first pillar of the second mast 10-2 are connected, pin holes formed in each of the first pillars may overlap each other. Accordingly, the fixing pin 410 of the fixing device 400 may be inserted into the pin hole formed in each of the first pillars, and the end of the fixing pin 410 inserted into the pin hole is to be fastened with the nut 420 . can Accordingly, the fixing pin 410 inserted into the pin hole may be maintained in a state fixed to the pin hole by the fixing pin 410 and the nut 420 fastened thereto.

Meanwhile, a vibration sensor 100 - 3 may be attached to one side of the nut 420 . Accordingly, the vibration detection sensor 100 - 3 periodically detects the vibration state of the nut 420 , and transmits the sensed vibration-related detection information to the fastening management device 300 . Accordingly, the controller 350 determines whether the vibration intensity value is equal to or greater than a preset threshold value based on the vibration-related detection information received from the vibration detection sensor 100-3, and based on the determination result, the fixing device ( 400) can be determined whether it is normally fastened.

Specifically, as shown in (b) of FIG. 6 , the nut 420 may be fastened to the fixing pin 410 without being in close contact with the first post of the first mast 10 - 1 . In this case, the nut 420 may vibrate according to the operation of the tower crane, and the vibration detection sensor 100-3 attached to the nut 420 acquires sensing information on the vibration generated by the nut 420 . can do.

When the vibration-related detection information of the vibration detection sensor 100-3 is received, the controller 350 determines that the vibration intensity value for the received vibration-related detection information is equal to or greater than a preset threshold value. Thereafter, the controller 350 determines that the fixing device 400 for fixing the connection between the first and second masts 10-1 and 10-2 is abnormally fastened based on the determined fastening state information, and Accordingly, the fastening state related information may be provided through at least one of the display unit 330 and the audio output unit 340 .

7 is an exemplary view showing the operation of the telescoping cage of the tower crane according to an embodiment of the present invention, Figure 8 is a tower crane according to an embodiment of the present invention for detecting the connection state to the telescoping cage It is also an example.

In the embodiment of the present invention, the telescoping cage 30 is a new one between the upper mast 10-1 located at the top of the plurality of masts 10 and the mast 10-3 directly connected to the turntable 20. When the mast 10' is stacked, the first mast 10-1 pre-connected so that a new mast 10' can be stacked between the first mast 10-1 and the third mast 10-3. and the third mast 10-3.

Such a telescoping cage 30 can move up and down through the following embodiment. 7(a), a pair of first fastening parts 30-1 are formed on the upper frame constituting the telescoping cage 30, and a pair of second fastening parts (30-1) are formed on the lower frame. 30-2) is formed. In addition, at least one first rib 11-1 forming a pair is formed on the outside of two pillars of the first mast 10-1, and a second mast connected to the first mast 10-1 ( 10-2) At least one second rib 11-2 forming a pair may be formed outside two of the pillars.

Accordingly, the first fastening part 30-1 of the telescoping cage 30 is fastened to the first rib 11-1 of the first mast 10-1, and the second fastening part 30-2 is It may be fastened to the second rib 11-2 of the second mast 10-2. As such, the first and second fastening portions 30-1 and 30-2 of the telescoping cage 30 are connected to the first and second ribs 11 of the first and second masts 10-1 and 10-2. -1, 11-2) and when the telescoping cage 30 moves in the upward direction in a state of being fastened to each other, as shown in FIG. 7(b), the hydraulic piston 32 of the telescoping cage 30 this is relaxed Accordingly, the upper frame of the telescoping cage 30 rises so that the first fastening part 30-1 of the upper frame is connected to the third mast 10-3 located above the first mast 10-1. 3 It is fastened to the rib (not shown). Then, as shown in FIG. 7(c), when the hydraulic piston 32 of the telescoping cage 30 is contracted, the lower frame of the telescoping cage 30 rises according to the contraction of the hydraulic piston 32, The second fastening part 30 - 2 of the lower frame is fastened to the first rib 11 - 1 of the first mast 10 - 1 . Through this series of processes, the telescoping cage 30 can be moved upward, and then a new mast 10' can be stacked between the first mast 10-1 and the third mast 10-3. have.

On the other hand, as described above, the first and second fastening parts 30-1 and 30-2 of the telescoping cage 30 are connected to the first and second coupling parts 30-1 and 30-2 of the first and second masts 10-1 and 10-2. It may be fastened to the second ribs 11-1 and 11-2.

Specifically, as shown in Fig. 8 (a), the first fastening portion 30-1 of the first rib 11-1 of the first mast 10-1 and the telescoping cage 30 is a ring form and can be fastened to each other. Meanwhile, in the telescoping cage 30 , a proximity sensor 100-1 is formed on an upper surface of the first fastening part 30-1. Accordingly, the controller 350 of the fastening management apparatus 300 performs telescoping with the first rib 11-1 of the first mast 10-1 based on the detection information sensed through the proximity sensor 100-1. It may be determined whether the first fastening part 30 - 1 of the cage 30 is normally fastened.

On the other hand, as shown in FIG. 8(b), the first rib 11-1' of the first mast 10-1 and the first fastening part 30-1' of the telescoping cage 30 are connected to each other. When abnormally fastened, the detection information detected through the proximity sensor 100-1 is the detection information detected in the state in which the first rib 11-1' and the first fastening part 30-1' are normally fastened. may be different from Accordingly, when the control unit 350 receives sensing information different from the sensing information sensed in a state in which the first rib 11-1' and the first fastening unit 30-1' are normally fastened, the first rib 11 -1') and the first fastening unit 30-1' are determined to be abnormally fastened, and information related to the fastening state accordingly is provided through at least one of the display unit 330 and the audio output unit 340. can

9 and 10 are exemplary views for providing information related to a fastening state according to an embodiment of the present invention.

As described above, a photographing device 200 for photographing an area to which the fixing device 400 is fastened may be installed on each pillar of the mast 10 , and as shown in FIG. 9( a ), the fastening management device Reference numeral 300 may display a plurality of images 910 to 940 captured by each photographing device 200 on one screen. In this case, the fastening management apparatus 300 may display identification information on the fixing device 400 corresponding to each of the plurality of images 910 to 940 on one side of the area where the plurality of images 910 to 940 are displayed. have.

When it is determined that at least one fixing device 400 among the plurality of fixing devices 400 is abnormally fastened while the plurality of images 910 to 940 are displayed on one screen, the fastening management device Reference numeral 300 displays an image 930 obtained by photographing a region including the abnormally fastened fixing device 400 from the other images 910 , 920 , and 940 . According to an embodiment, the fastening management apparatus 300 displays a warning display related graphic image on the image 930 of the area including the abnormally fastened fixing device 400 . Accordingly, the driver who operates the tower crane may select the image 930 on which the graphic image related to the warning display is displayed. When such a user command is input, the fastening management device 300 displays an entire image of an image 930 of a region including the abnormally fastened fixing device 400 , as shown in FIG. 9( b ). (930') may be displayed on the entire screen. Accordingly, the tower crane operator can quickly check the fastening state of the fixing device 400 through the displayed entire image 930 ′ and report it to the manager.

According to an additional aspect of the present invention, the fastening management device 300 responds to the input user command when a user command related to zoom in on the image 930 or the entire image 930 ′ on which the graphic image related to the warning display is displayed is input. The corresponding image can be enlarged to a corresponding size.

On the other hand, the fastening management device 300 provides information related to the fastening state of the abnormally fastened fixing device 400 through the indicator light 950 corresponding to each of the fixing devices 400 for fixing the connection between the masts 10 . It can be provided visually to the driver.

As shown in the above drawings, the first and second masts 10-1 and 10-2 may be connected and fixed by a plurality of fixing devices 400, and a second fixing device among the plurality of fixing devices 400 may be fixed. When the device 400 is abnormally fastened, the fastening management device 300 emits a second indicator light 951 corresponding to the second fixing device 400 . Accordingly, the driver can check the light emitting state of the second indicator light 951 , recognize which fixing device 400 is abnormally fastened, and can quickly report it to the manager.

So far, the smart safety system of the tower crane according to the present invention has been described in detail. Hereinafter, a control method of the fastening management apparatus 300 for the safety of a tower crane according to the present invention will be described in detail.

11 is a flowchart for a control method of a fastening management device for the safety of a tower crane according to an embodiment of the present invention.

11 , the fastening management device 300 detects a connection state between the turntable constituting the tower crane and at least one mast. The fastening management device 300 receives sensing information from a sensing device that detects a fastening state of a fixing device for fixing a connection between a first mast and a turntable or a first mast and a second mast among at least one mast ( S1110).

In addition, the fastening management device 300 is installed around the sensing device. When a plurality of images photographed through a photographing device for photographing an area to which the fixing device is fastened is received, the received q plurality of images is displayed on one screen. Display.

Meanwhile, according to an embodiment, the fixing device is inserted into a pin hole formed in each of the first and second mast posts and the turntable posts to fix the connection between the first mast and the turntable or the first and second masts. and at least one of a pin and a nut fastened to the fixing pin. And, the sensing device is installed at a point adjacent to the pin hole formed in each of the first and second mast posts and includes a proximity sensor for detecting the end of the connecting pin inserted through the pin hole or the nut fastened with the end of the fixing pin can do.

According to another embodiment, the fixing device includes a fixing pin for fixing the connection between the first mast and the turntable or the first and second masts by inserting into the pin holes formed in each of the first and second mast posts and the turntable posts, and It may include a nut fastened to the fixing pin inserted into the pin hole. In addition, the sensing device is installed at a point adjacent to the pin hole formed in each of the first and second mast posts to output an optical signal, and a photoelectric sensor for detecting reception of an optical signal output through a reflector attached to one side of the nut may include.

According to another embodiment, the fixing device includes a fixing pin for fixing the connection between the first mast and the turntable or the first and second masts by inserting into the pin holes formed in each of the first and second mast posts and the turntable posts, and It may include a nut fastened to the fixing pin inserted into the pin hole. In addition, the sensing device may include a vibration detection sensor attached to one side of the nut to detect a vibration state of the nut.

Meanwhile, the tower crane may further include a telescoping cage for stacking a third mast between the first mast and the turntable by raising the turntable. In this case, the sensing device is formed on the upper surface of the fastening part of the telescoping cage which is fastened corresponding to each of the pair of ribs formed on the outside of two of the turntable posts or on the outside of two of the at least one mast post, so that the fastening part is 2 It may include a proximity sensor for detecting whether the dog is in proximity to the pole.

When detection information is received through a detection device including such various detection sensors, the fastening management device 300 determines a connection state between the first mast and the turntable or the first and second masts based on the received detection information. do (S1130).

According to an additional aspect of the present invention, when a plurality of images captured by the photographing device are received, the fastening management apparatus 300 performs image analysis on each image received using a feature point analysis algorithm to ensure that the fixing device is normally operated. It can be determined whether or not

Thereafter, the fastening management device 300 provides connection state information on the abnormally fastened fixing device based on the determined result ( S1140 ). Specifically, the fastening management device 300 may determine the fastening state of the plurality of fixing devices using the detection information received through the sensing device, and display an image corresponding to the abnormally fastened fixing device differently from the rest of the images. have.

As such, when a first user command for the first image is input in a state where the first image corresponding to the abnormally fastened fixing device is displayed differently from the other images, the fastening management apparatus 300 displays the first image. It can be displayed on the full screen.

In addition, when a second user command for a selected image (a first image) or a first image displayed on the entire screen is input from among a plurality of images, the fastening management apparatus 300 displays a size corresponding to the second user command. The first image may be displayed by zooming in/out.

Thereafter, the fastening management device 300 transmits tower crane status information including identification information on the abnormally fastened fixing device (S1150). Accordingly, the administrator can quickly move to the point where the abnormally fastened fixing device is located based on the tower stake state information received from the fastening management device 300 and process the abnormally fastened fixing device to be normally fastened. .

Meanwhile, the control method of the fastening management apparatus 300 according to the above-described various embodiments may be coded with software and stored in a non-transitory readable medium. Such non-transitory readable media may be mounted on various devices and used.

The non-transitory readable medium refers to a medium that stores data semi-permanently, rather than a medium that stores data for a short moment, such as a register, cache, memory, etc., and can be read by a device. Specifically, it may be a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, or the like.

In addition, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the claims In addition, various modifications are possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

10: mast 20: turntable
21: transfer unit 22: cockpit
23: rail 30: telescoping cage
100: sensing device 200: photographing device
300: fastening management device 310: communication unit
320: user input unit 330: display unit
340: audio output unit 350: control unit
400: fixing device 410: fixing pin
420: nut 430: reflector

Claims (20)

In the smart safety system for detecting the connection state of the turntable and a plurality of masts constituting the tower crane,
Among the first mast, the second mast, and the fixing pin for fixing the connection between the first and second masts by being inserted into the pin holes formed in the turntable, and the nuts fastened to the fixing pin, the first mast and the turntable or the first and second masts a fixing device comprising at least one;
indicator lights corresponding to each of the fixing devices;
a sensing device installed at a point or a nut adjacent to the pin hole to detect a fastening state of the fixing device;
a fastening management device providing information related to a fastening state of the fixing device based on the sensing information sensed by the sensing device, and emitting an indicator light corresponding to the abnormally fastening fixing device; and
and a telescoping cage for stacking a third mast between the first mast and the turntable by raising the turntable;
The sensing device is
It is installed on the upper side of the pin hole formed in each of the first and second mast posts to face the end of the fixing pin or the nut fastened to the end of the fixing pin to periodically transmit a signal and reflect the transmitted signal a first proximity sensor for detecting a response time of a signal and detecting an end of the fixing pin or the nut inserted through the pin hole;
It is installed at a point adjacent to the pin hole formed in each of the first and second mast posts to output an optical signal, and detects reception of a reflection signal for the output optical signal from a reflector attached to one side of the nut, a photoelectric sensor that does not receive a reflected signal for the optical signal output from the reflector when the nut is rotated in one direction according to the left and right movement of the turntable;
a vibration detection sensor attached to one side of the nut to detect a vibration state of the nut; and
A pair of ribs and rings formed outside two of the turntable columns or two of the first and second masts are formed on the upper surface of the fastening portion of the telescoping cage to be fastened to each other. a second proximity sensor formed to face the first and second mast posts to detect whether the fastening part is fastened to the two posts; Smart safety system comprising at least one of.
delete delete delete delete The method of claim 1,
It further comprises;
The fastening management device,
a communication unit configured to perform data communication with at least one of the photographing device and the sensing device;
a display unit for displaying a plurality of images captured by the photographing device on a single screen; and
a control unit controlling the display unit to determine a fastening state of the plurality of fixing devices based on the detection information received through the sensing device and output an image corresponding to the abnormally fastened fixing device differently from the rest of the images;
A smart safety system comprising a. 7. The method of claim 6,
The fastening management device,
It further includes a user input unit;
The control unit is
When a first user command for a first image among the plurality of images is input through the user input unit, the smart safety system, characterized in that the display unit is controlled to display the first image on the entire screen. 8. The method of claim 7,
The control unit is
When a second user command for the selected image from among the plurality of images or the first image displayed on the entire screen is input, the selected image or the first image is zoomed in to a size corresponding to the second user command Smart safety system, characterized in that for controlling the display unit to display / out. 7. The method of claim 6,
The control unit is
Smart safety system, characterized in that when an image photographed through the photographing device is received, image analysis is performed on each of the received images using a feature point analysis algorithm to determine whether the fixing device is normally fastened . 9. The method of claim 8,
The control unit is
When the abnormally fastened fixing device is detected, the smart safety system, characterized in that it transmits tower crane status information including identification information on the abnormally fastened fixing device to the integrated management server through the communication unit. In the control method of a fastening management device for detecting a connection state of a turn table constituting a tower crane and a plurality of masts,
receiving sensing information from a sensing device that detects a fastening state of a fixing device for fixing a connection between a first mast and the turntable or between the first mast and the second mast;
determining a connection state between the first mast and the turntable or the first and second masts based on the received sensing information;
providing connection state information on the abnormally fastened fixing device based on the determined result; and
emitting light corresponding to the abnormally fastened fixing device from among the indicator lights corresponding to each of the fixing devices;
including,
The fixing device is
A fixing pin for fixing the connection between the first mast and the turntable or the first and second masts by inserting them into pin holes formed in each of the first and second masts and the turntable, and a nut fastened to the fixing pin comprising at least one of
The detection device installed at a point adjacent to the pin hole or a nut to detect the fastening state of the fixing device,
It is installed on the upper side of the pin hole formed in each of the first and second mast posts to face the end of the fixing pin or the nut fastened to the end of the fixing pin to periodically transmit a signal and reflect the transmitted signal a first proximity sensor for detecting a response time of a signal and detecting an end of the fixing pin or the nut inserted through the pin hole;
It is installed at a point adjacent to the pin hole formed in each of the first and second mast posts to output an optical signal, and detects reception of a reflection signal for the output optical signal from a reflector attached to one side of the nut, a photoelectric sensor that does not receive a reflected signal for the optical signal output from the reflector when the nut is rotated in one direction according to the left and right movement of the turntable;
a vibration sensor attached to one side of the nut to detect a vibration state of the nut; and
It is formed on the upper surface of the fastening part of the telescoping cage which is formed in the form of a pair of ribs and rings formed on the outside of two of the turntable pillars or on the outside of each of the two pillars of the first and second masts, and is fastened to each other, , a second proximity sensor formed to face the first and second mast posts to detect whether the fastening part is fastened to the two posts; comprising at least one of
The telescoping cage raises the turntable to stack a third mast between the first mast and the turntable.
delete delete delete delete 12. The method of claim 11,
Displaying a plurality of images captured by a photographing device installed around the sensing device and photographing an area to which the fixing device is fastened on a single screen; further comprising,
The providing step is
The control method, characterized in that by determining the fastening state of the plurality of fixing devices based on the detection information received through the sensing device, an image corresponding to the abnormally fastening fixing device is output differently from the rest of the images. 17. The method of claim 16,
The displaying step is
When a first user command for a first image among the plurality of images is input, the first image is displayed on the entire screen. 18. The method of claim 17,
The displaying step is
When a second user command for the selected image from among the plurality of images or the first image displayed on the entire screen is input, the selected image or the first image is zoomed in to a size corresponding to the second user command Control method characterized in that / out and display. 17. The method of claim 16,
The determining step is
When an image captured by the photographing device is received, image analysis is performed on each of the received images using a feature point analysis algorithm to determine whether the fixing device is normally fastened. 20. The method of claim 19,
When the abnormally fastened fixing device is detected, transmitting the tower crane status information including identification information on the abnormally fastened fixing device to the integrated management server;
Control method, characterized in that it further comprises.

Images