KR101516284B1 - Helideck having checking means for tie-down - Google Patents

Abstract

A helideck with tie down checking means is disclosed. The helideck provided with the tie-down checking means according to an embodiment of the present invention includes a pancake unit for providing a place for takeoff and landing of the helicopter; A tie-down main body installed in an installation groove of an upper plate of the flank of the pancake part; A cover portion provided on an upper portion of the installation groove for opening and closing the installation groove; A retractor provided inside the tie-down body and releasing a strap for connection to the helicopter to supply or wind the strap; And a sensor unit installed toward the strap of the bobbin of the retractor; And a monitoring unit, connected to the sensor unit, for checking a winding amount of the strap wound on the bobbin of the retractor by the sensor unit or a change thereof.

Description

[0001] HELDECK HAVING CHECKING MEANS FOR TIE-DOWN WITH TIE-

The invention relates to a helideck with tie-down checking means.

Generally, offshore plants such as drill ship, FPSO (Floating, Production, Storage and Offloading) or vessels that need to stay in the sea for a long time should operate helicopter , Which necessitates the installation of Helideck on the player or stern.

The helideck may be comprised of a pancake portion forming a deck floor where the helicopter takes off and landing and a pancake support portion supporting the pancake portion. The pancake part may be formed by connecting a plurality of plank to each other so as to support the helicopter. The pancake support may include H-shaped beams capable of supporting the pancake portion.

For example, the pancake portion may be formed by connecting a plurality of flank of aluminum material extending in one direction. Further, the pancake supporting portion includes a plurality of aluminum H beams extending long in a direction intersecting the extending direction of the flanks and disposed below the flanks to support the pancake portion, an aluminum H beam extending long in a direction intersecting the extending direction of the aluminum H beam, And a plurality of steel H beams disposed below the beam to support the aluminum H beam.

Especially, in case of Helideck operated in the sea, since the Helideck itself moves horizontally and vertically as well as the influence of the wind by the wind, after the helicopter is safely landed on the helideck, the helicopter landed safely At this time, a tie down on the helideck, a rope connecting the tie down and the helicopter are needed.

For example, in the patent document which is the background of the invention, tie-down which is means for fixing the rope is disclosed.

However, in the conventional art, since the rope between the helicopter and the tie down is separated, there is an inconvenience that a user carrying out the task of fixing the helicopter must directly transport a plurality of ropes to connect the helicopter and the tie down to each other .

In addition, even if an accident occurs in which at least one rope among a plurality of ropes is loosened or broken between the helicopter and the tie down due to excessive sea environment change such as wind storms or typhoons during ship operation in the tie down of the prior art, The helicopter itself can not be fixed to the helideck so that the helicopter can not actively cope with the risk of the helicopter being overturned on the helideck due to the shaking of the ship to be.

Registration Utility Model No. 20-0460670

The embodiment of the present invention includes a strap provided on a pancake of a heli-deck, a tie-down main body for storing the strap, and a checking means for checking whether the strap is wound or loosened in the tie- And a tie-down checking means for checking the state of the strap connecting the tie downs to each other to protect the helicopter safely.

According to an aspect of the present invention, there is provided a pancake unit for providing a place for takeoff and landing of a helicopter; A tie-down main body installed in an installation groove of an upper plate of the flank of the pancake part; A cover portion provided on an upper portion of the installation groove for opening and closing the installation groove; A retractor provided inside the tie-down body and releasing a strap for connection to the helicopter to supply or wind the strap; A sensor unit installed toward the strap of the bobbin of the retractor; And a monitoring portion connected to the sensor portion and configured to monitor a winding amount of the strap wound on the bobbin of the retractor or a change thereof by the sensor portion.

Further, the cover portion may include a ring frame coupled to an upper rim of the installation groove; A cover hinged to the ring frame; A lever hinged to the handle groove of the cover; And a locking device for locking or releasing the cover and the ring frame in correspondence with the rotating operation of the lever.

In addition, the cover portion may further include a strap groove portion provided at an edge of the cover to allow the strap to pass therethrough.

In addition, the tie-down body includes a main body lower housing coupled to the bottom of the installation groove; A main body lower housing coupled to the upper portion of the main body lower housing in a disassembly and assembled manner, the main body lower housing providing a space for installing the retractor and the sensor portion, and having a strap hole for the travel path of the strap; And a communication unit connected between the sensor unit and the communication network to transmit the electric or communication signal converted by the sensor unit to the control unit of the monitoring unit.

Further, the retractor may include a pair of supports mounted on the bottom of the main body lower housing; A bobbin rotatably coupled to the upper portion of the support; An elastic force providing unit provided on an outer surface of the support to provide an elastic force or an elastic restoring force to the bobbin; The strap wound on the bobbin; And a fastening portion disposed on the outside of the main body upper housing through the strap hole and coupled to an end of the strap.

The monitoring unit may be connected to the communication network, and may communicate with the communication unit to transmit electricity or electricity corresponding to any one of a separation distance to the strap converted by the sensor unit, a change in the separation distance, A control unit for receiving a communication signal; An output unit connected to the control unit and displaying an unwinding or winding state of the strap corresponding to the electric or communication signal; And an alarm unit for generating an alarm in response to a result of the determination by the controller when the controller determines that the strap is loose or unwound by comparing the strap with a predetermined condition.

The tie-down body may further include a sensor support spaced from the bobbin and mounted on the bottom of the main body lower housing to support the sensor portion.

In addition, the sensor unit may be an optical sensor for distance measurement or an ultrasonic sensor.

The monitoring unit may be connected to a ship operation management system installed in the ship.

A helideck with a tie-down checking means according to an embodiment of the present invention provides a recessed tie down with a cover, wherein the tie down is prewound by an elastic force inside the tie down and can be pulled by the user and released The present invention provides a checking device having a strap, a retractor for winding and holding the strap by elastic force, and a sensor portion for checking the state of the strap being wound on the retractor, so that the monitoring device provided in the checking means can connect the helicopter to the tie- It is possible to grasp the situation or helicopter fixed situation accurately in real time.

In addition, the checking means of this embodiment is connected to the ship navigation management system installed in the ship, and is integrally managed. When the strap is broken due to excessive movement of the ship or external force transmitted to the helicopter, or the strap fastening portion is separated from the helicopter Real-time monitoring or diagnosis and action can be taken.

In addition, the present embodiment can prevent an accident such as a fall of the helicopter or a fall from the helideck when the helicopter is not fixed to the helideck.

In addition, since the present embodiment allows the user to take out a strap previously provided in the tie-down main body of the tie down and connect it to the helicopter without having to carry the rope or strap for connecting the helicopter to the tie down, It is possible to fix it to the helideck and to solve the inconvenience that the user carries a plurality of straps or the like and stores it after use.

1 is a perspective view of a helideck with tie-down checking means according to the present invention.
2 is a plan view showing the configuration of the checking means shown in Fig.
3 is a plan view of the pancake flank with the tie down and tie down shown in Fig.
4 is a cross-sectional view taken along the line AA shown in Fig.
5 to 7 are sectional views for explaining a method of operating the tie-down checking means.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the drawings, Fig. 1 is a perspective view of a helideck with tie-down checking means according to the present invention.

Referring to FIG. 1, a helideck (hereinafter referred to as "the present embodiment") having tie-down checking means according to the present embodiment is mounted on a deck, such as a front surface of a deck house, House can be installed.

For example, the present embodiment may include a deck support 100 corresponding to a backing structure (e.g., a vertical or inclined post) connected to a deckhouse so as to be supported by a deckhouse of a floating structure or ship, And a connected pancake support 200.

The pancake support unit 200 may be connected to the bottom of the pancake unit 300 to support the pancake unit 300. The pancake support 200 may include a first beam 210 and a second beam 220. The first beam 210 may refer to a plurality of aluminum H beams that support the pancake 300 connected to the bottom of the pancake 300. The upper portion of the first beam 210 may be connected to a flank corresponding to a unit component of the pancake unit 300. The second beam 220 may refer to a plurality of steel H beams that extend long in a direction that intersects the extending direction of the first beam 210 and are disposed below the first beam 210.

The pancake unit 300 may serve to provide a place for the take-off and landing of the helicopter. The pancake unit 300 includes a pancake which is an upper plate (for example, a take-off and landing plane) formed by connecting plank units as unit components, and other accessories for helidecks installed in the pancake (e.g., safety net, Drainage, lighting fixtures, tie down, etc.).

A plurality of tie downs 400 may be disposed in the pancake portion 300. The arrangement of the tie downs 400 can be determined corresponding to a design value that can safely fix the helicopter to the top plate of the pancake unit 300. Therefore, the arrangement of the tie downs 400 is limited to the position, number, size, shape or type shown in FIG. .

For example, the tie downs 400 may be formed in a recess type, and may be installed in the plurality of installation grooves 302 disposed on the upper plate of the flank of the pancake portion 300, respectively.

2 is a plan view showing the configuration of the checking means shown in Fig.

2, in this embodiment, the checking means includes a monitoring unit 500 for checking and monitoring the amount of winding of the strap wound on the bobbin of the retractor for each tie down 400 or its change by the sensor unit, May refer to a device connected to the unit 500.

That is, the monitoring unit 500 may be connected to the sensor unit for each tie-down 400 and may be responsible for checking the winding amount of the strap wound on the bobbin of the retractor or the change thereof .

A device connected to the monitoring unit 500 is a sensor unit provided in each tie down unit 400 including a communication network 600 connected to the monitoring unit 500 and a sensor unit to be described later in detail, May mean the flight management system 700. [ The ship operation management system 700 is generally installed on a large ship or a floating structure and may be a known means for monitoring the operation state of various facilities of a large ship or a floating structure or controlling and managing various facilities, It can be omitted in the description of this embodiment.

That is, the monitoring unit 500 is connected to the ship operation management system 700 installed in the ship, and signals or information collected through the sensor units of the tie-downs 400 are integrated and managed in the ship operation management system 700 can do.

Each tie down 400 may have a strap preattached to the retractor in the tie down 400, unlike a typical tie down using ropes or straps separately.

The monitoring unit 500 is connected to the communication network 600 and communicates with a communication unit provided in each of the tie downs 400 so that the distances to the straps of the retractors converted by the sensor units of the tie downs 400 And a controller 510 receiving an electrical or communication signal corresponding to one of a distance, a change in the distance, and a wrapping amount of the strap. The communication network 600 may be a general communication means for implementing a wired / wireless network. For example, the communication network 600 may satisfy the AN of the wired / wireless communication standard generally used in the communication industry field including a Wi-Fi or zigbee communication standard.

The control unit 510 may be a communicatable computer terminal device and may store and store software that can process the electrical or communication signal to monitor the supply or storage of the strap in the retractor of the tie- have. For example, the software may be an algorithm that can determine whether a strap is loosened or pulled, compared to a predetermined condition, to determine whether it is normal or abnormal.

In addition, the control unit 510 may be further connected to a separate input device 540 (e.g., button, keyboard, etc.). Or the contact sensor 451 for confirming the opening or closing of the cover 422 (see FIGS. 4 to 7) for each tie-down 400 is connected to the communication portion 460 and the communication network 600 of the tie- And may be connected to the control unit 510 through the network.

The control unit 510 can input the presence or absence of a security completion signal input by the user using the input device 540 or the presence or absence of a cover closing confirmation signal input from the contact sensor 451. [ Also, the control unit 510 may receive the predetermined condition value required to compare whether or not the helicopter has been secured. That is, the predetermined condition value may be the securing operation completion signal or the cover closing confirmation signal.

The monitoring unit 500 may include an output unit 520 connected to the control unit 510 and displaying an unwinding or winding state of the strap corresponding to the electrical or communication signal. For example, the output 520 may be a user interface (UI) to be shown on a monitor and monitor of a computer terminal.

In addition, when the control unit 510 determines that the strap is released or retracted in comparison with a predetermined condition, the monitoring unit 500 may generate an alarm in response to the determination result of the control unit 510 530).

The control unit 510, the output unit 520 and the alarm unit 530 can be implemented using general electronic circuit technology or computer programming technology. Therefore, in this embodiment, the control unit 510, the output unit 520, The description of the electronic circuit configuration and the computer program for the computer 530 may be omitted.

Fig. 3 is a plan view of the pancake flank with the tie down and tie down shown in Fig. 2, and Fig. 4 is a sectional view taken along the line A-A shown in Fig.

Referring to FIGS. 3 and 4, the tie-down body 410 installed in the installation groove 302 of the upper plate of the flank 301 of the pancake 300 according to the tie- .

The tie-down body 410 includes a main body lower housing 412 coupled to the bottom of the installation groove 302, a detachably assembled upper portion of the main body lower housing 412, and the retractor 440, And a lower main body housing 411 provided with a mounting space for the sensor unit 450 and the communication unit 460 and having a strap hole 414 for the moving path of the strap 430.

The shape of the main body lower housing 411 can be designed so that the fastening portion 431 connected to the strap 430 can be positioned below the cover 422. [ Here, the fastening part 431 may be any one of a hook, a collar, a shackle, and a bean which can be hooked to a fixed position (e.g., a hook provided on a helicopter) provided on the helicopter.

In addition, the present embodiment may include a cover portion 420 installed on the upper portion of the installation groove 302 for opening and closing the installation groove 302.

The retractor 440 is installed inside the tie-down body 410 and releases the strap 430 to be connected to the helicopter landed on the helideck, And a sensor unit 450 installed toward the strap 430 of the bobbin 441 of the bobbin 440.

Here, the sensor unit 450 may be an optical sensor for distance measurement or an ultrasonic sensor. For example, the sensor unit 450 may be an infrared range-finding sensor having a light-receiving unit and a light-emitting unit, a laser distance sensor, or an ultrasonic sensor measuring a distance using ultrasonic waves in a non-contact manner.

In addition, the sensor unit 450 has identifier information for each tie-down 400, and the identifier information may be transmitted to the control unit 510 whenever communication is performed.

The tie-down body 410 is spaced apart from the bobbin 441 of the retractor 440 and includes a sensor support 413 mounted on the bottom of the main body lower housing 412 to support the sensor unit 450 . The sensor support 413 is a kind of mount for mounting or detaching the sensor unit 450, and may be formed to protrude from the bottom of the main body lower housing 412.

The cover portion 420 may include a ring frame 421 coupled to the upper rim 303 of the mounting groove 302. The ring frame 421 is provided with a plurality of bolt fastening holes and the bolt holes of the flange 301 are aligned with each other so that the ring frame 421 is fastened to the upper edge step 303 Fixed or coupled.

The cover portion 420 is hinged to the ring frame 421 in a state of being located in the inner space of the ring frame 421 and consequently covers 422 serving to open and close the installation groove 302 . A hinge pin 424 may protrude from both sides of the end of the cover 422 and the protrusion of the hinge pin 424 may be rotatably inserted into the pin hole of the ring frame 421.

The cover portion 420 may include a lever 425 hinged to the handle groove 423 of the cover 422. The lever 425 may also be rotatably coupled to the inside of the handle groove 423 using a spring (not shown) coupled to the lever rotation pin and the lever rotation pin. At this time, the user can place the lever 425 with his / her holding hand after holding the lever 425, and in this case, the lever 425 can be configured to return to its original position by the restoring force of the spring As such, the lever 425 may have a general door handle configuration.

The cover portion 420 may include a locking device 426 for locking or releasing the cover 422 and the ring frame 421 in response to the rotation of the lever 425. Here, the locking device 426 may have a mechanical structure that converts the rotational motion of the lever 425 into a linear reciprocating motion, and the locking of the locking device 426 So that the king pin can be inserted into and removed from the locking hole of the ring frame 421.

The cover part 420 is opened when the cover 422 is opened and a part of the strap 430 and the fastening part 431 are located outside the installation groove 302. Then, The cover 422 may include a strap groove 427 provided at an edge of the cover 422 to allow the strap 430 to pass therethrough.

The tie-down unit 410 is connected to the sensor unit 450 to transmit the electric or communication signal converted by the sensor unit 450 to the control unit 510 of the monitoring unit 500 shown in FIG. And a communication unit 460 connected between the communication network 600.

The communication unit 460 receives the communication signals and the power signals and provides them to the sensor unit 450. The communication unit 460 may be a general communication circuit module that transmits the electric signals or the communication signals of the sensor unit 450 to the control unit 510 have.

The retractor 440 includes a pair of supporters 442 erected on the bottom of the main body lower housing 412, a bobbin 441 rotatably coupled to the upper portion of the supporter 442, And an elastic force providing portion 443 provided on an outer surface of the bobbin 441 to provide an elastic force or an elastic restoring force to the bobbin 441.

For example, the elastic force providing portion 443 further includes a spring spring 443a coupled between the bobbin 441 and the casing of the elastic force providing portion 443, so that when the bobbin 441 rotates, the spring spring 443a When the winding or winding spring 443a is released, the elastic restoring force of the spring spring 443a is transmitted to the bobbin 441, and as a result, the bobbin 441 can be reversely rotated. In addition, the magnitude of the elastic force or the elastic restoring force of the spring 443a can be determined in consideration of a predetermined design value such as the number of the tie downs 400 and the required tension magnitude that can fix the helicopter.

In addition, the elasticity providing portion 443 may further include a strap stopper device (not shown) that can forcibly limit the unwinding (supply) or the winding (recovery) of the strap 430. That is, the strap stopper device may be a general device that further connects a gear device to the rotating shaft of the bobbin 441, and optionally locks or unmatchedly latches the gear device to the gear device. The specific constitution of the elasticity providing portion 443 may be similar to that of the spring module or the strap stopper device provided in the seat belt retractor or the fastener device for fastening the cargo and there is no difficulty in understanding the device from sufficiently known matters , And the detailed configuration thereof may be omitted.

Also, the retractor 440 may include the strap 430 that can be wound on the bobbin 441 or stored and supplied from the bobbin 441.

The retractor 440 may include a fastening portion 431 disposed outside the main body upper housing 411 through the strap hole 414 and coupled to an end of the strap 430.

When the user opens the cover 422 of the cover part 420, a part of the fastening part 431 and the strap 430 can be exposed. The user can extend the strap 430 from the retractor 440 to a helicopter (not shown) that requires securing or fixing by pulling the fastening portion 431 of the tie down 400.

Basically, the elasticity imparting unit 443 can be sufficiently pulled by the user's pulling force, or can exert an elastic restoring force to such an extent that the helicopter can be securely fixed using the plurality of tie downs 400. This elastic restoring force can keep the straps 430 between the helicopter and the tie downs 400 tight.

As an application example, the elastic force providing portion 443 may be provided with a separate elastic force increasing or reducing means (for example, a winch) and a control button. When the user ties down the fastening portion 431 and the strap 430 The rotation shaft of the bobbin 441 is rotated by the winch so that the elastic force of the elastic force providing portion 443 can be minimized when the bobbin 441 is taken out from the bobbin 441 or the rotation shaft of the bobbin 441 is provided between the output shaft of the winch and the rotating shaft of the bobbin 441, So that the rotating shaft of the bobbin 441 can freely rotate. On the other hand, in a state where the coupling portion 431 and the strap 430 are connected between the helicopter and the tie down 400, the elastic force of the elastic force providing portion 443 is maximized (e.g., So that tension is applied to the strap). Since the detailed configuration of the elasticity imparting unit 443 can be implemented by using a known device, the detailed description of the detailed configuration in this embodiment can be omitted.

Hereinafter, the operation of the present embodiment will be described.

5 to 8 are sectional views for explaining a method of operating the tie-down checking means.

4 and 5, the user moves toward the tie down 400 without carrying or carrying a separate rope or the like in order to secure or park the helicopter landed on the pancake unit 300 of the helideck. do.

Thereafter, the user opens the cover 422 of the cover portion 420. That is, the user grips the lever 425 of the cover 422 by hand and rotates.

3, the locking pin of the locking device 426, which converts the rotational motion of the lever 425 into a linear reciprocating motion, is released from the locking hole of the ring frame 421, and at the same time, the cover 422 May rotate with respect to the hinge pin 424 to be in a state as shown in FIG.

In this case, the cover 422 opens the mounting groove 302, and as a result, the tie-down body portion 410 and the fastening portion 431 can be seen with the naked eye.

The user can pull the fastening portion 431 and extend as if the strap 430 connected to the fastening portion 431 is pulled out of the strap hole 414 of the tie down body portion 410. Of course, the bobbin 441 of the retractor 440 with the strap 430 wound thereon rotates corresponding to the extension of the strap 430, and at the same time, the winding spring 443a coupled to the retractor 440 is rotated It is possible to generate a restoring force necessary for returning the strap 430 and the fastening portion 431 while being wound in a direction opposite to the rotation of the bobbin 441.

The user continues to pull the fastening portion 431 to a fixed position (e.g., a ring portion provided in the helicopter) provided on the helicopter, and then fastens the fastening portion 431 to the fixed position.

Referring to FIG. 6, the user closes the cover 422 of the cover portion 420, and in this case, the strap 430 can maintain the extended state through the strap groove portion 427.

In this case, the strap 430 may be connected between the helicopter and the tie down 400.

4 to 6 may be performed for each tie-down 400, so that all the straps 430 can be connected to the helicopter.

4, when the strap 430 is wrapped around the bobbin 441 of the retractor 440, the sensor unit 450 is attached to the strap 430 of the bobbin 441, The first separation distance R1 between the outermost circumferential surface and the sensor unit 450 is measured.

The sensor unit 450 transmits an electric or communication signal corresponding to the first separation distance R1 through the communication unit 460 and the communication network 600 to the control unit 510 of the monitoring unit 500 shown in FIG. Lt; / RTI >

The control unit 510 processes the electrical or communication signal corresponding to the first separation distance R1 so that the strap 430 is stored in the retractor 440 of the tie down 400. As a result, It can be determined that the helicopter is not used for securing the helicopter and the result of the determination can be displayed on the output unit 520. [

5, when the strap 430 is loosely supplied, the sensor unit 450 transmits an electrical or communication signal corresponding to the distance change amount through the communication unit 460 and the communication network 600 to the control unit 510 ).

6, when the strap 430 is loosened and extended from the bobbin 441 of the retractor 440, the sensor unit 450 moves the strap 430 from the bobbin 441 of the retractor 440 to the end of the strap 430 of the bobbin 441 And senses or measures a second separation distance R2 between the outer peripheral surface and the sensor unit 450. [

Here, it can be seen that the second spacing distance R2 is larger than the first spacing distance R1, and the spacing distance is changed.

Since the sensor unit 450 transmits an electric or communication signal corresponding to the second separation distance R2 to the control unit 510 of the monitoring unit 500, It is possible to check a difference (e.g., a change amount) of the second spacing distance R1. As a result, the control unit 510 can determine that the strap 430 is used for securing the helicopter, and display the determination result on the output unit 520 as well.

Thereafter, when the user confirms that the helicopter has been completely secured by using the separate input device 540 (see FIG. 2) or a contact confirmation sensor (not shown) of the cover 422 input to the control unit 510 The control unit 510 can determine whether the helicopter has been secured.

Referring to FIG. 7, in the steady state, the coupling part 431 is unintentionally disengaged from the hook of the helicopter due to an accident, a natural disaster, an external force applied to the helicopter due to an excessive movement of the ship, An accident may occur or an accident may occur in which the strap 430 itself is broken.

In this case, the retractor 440 can reverse the bobbin 441 by the elastic reaction force of the spring spring 443a of the elastic force providing portion 443, and can recover the strap 430.

In this case, the sensor unit 450 senses the third separation distance R3 or the amount of change, and transmits a corresponding electrical or communication signal to the control unit 510 of the monitoring unit 500.

Thereafter, the control unit 510 receives the received electric or communication signal, but the status signal (e.g., the cover close confirmation signal by the contact sensor 451) of the helicopter is still present, And the result of the determination is also displayed on the output unit 520 in an abnormal operation state and an alarm is generated through the alarm unit 530. [

The user can recognize that a problem has occurred in the tie down 400 according to the alert and also confirm the abnormal operation state or the position of the tie down 400 in which the trouble has occurred through the output unit 520 Next, it moves to the tie down 400 in practice, and it is possible to solve an accident identification and a problem.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

100: deck support 200: pancake support
300: Pancake part 302: Installation groove
400: tie down 410: tie down body part
420: cover part 430: strap
440: retractor 450: sensor part
460: communication unit 500: monitoring unit
510: control unit 520: output unit
530: alarm unit 540: input device
600: Network

Claims (9)

A pancake portion providing a place for takeoff and landing of the helicopter;
A tie-down main body installed in an installation groove of an upper plate of the flank of the pancake part;
A cover portion provided on an upper portion of the installation groove for opening and closing the installation groove;
A retractor installed inside the tie-down body and releasing or supplying a strap for connection to the helicopter or winding and storing the strap;
A sensor unit installed toward the strap of the bobbin of the retractor; And
And a monitoring unit connected to the sensor unit and configured to monitor a winding amount of the strap wound on the bobbin of the retractor or a change thereof by the sensor unit. The method according to claim 1,
The cover portion being coupled to the upper rim of the mounting groove;
A cover hinged to the ring frame;
A lever hinged to the handle groove of the cover; And
Down detecting means including a locking device for locking or releasing the cover and the ring frame in response to a rotation operation of the lever. 3. The method of claim 2,
And the cover portion further includes a tie-down checking means including a strap groove portion provided at an edge of the cover to allow the strap to pass therethrough. The method according to claim 1,
The tie-
A main body lower housing coupled to a bottom of the mounting recess;
A main body lower housing coupled to the upper portion of the main body lower housing in a disassembly and assembled manner, the main body lower housing providing a space for installing the retractor and the sensor portion, and having a strap hole for the travel path of the strap; And
And a tie-down checking means including a communication unit connected between the sensor unit and the communication network to transmit the electric or communication signal converted by the sensor unit to the control unit of the monitoring unit. 5. The method of claim 4,
The retractor
A pair of supports mounted on the bottom of the main body lower housing;
A bobbin rotatably coupled to the upper portion of the support;
An elastic force providing unit provided on an outer surface of the support to provide an elastic force or an elastic restoring force to the bobbin;
The strap wound on the bobbin; And
And a tie-down checking means disposed on the outside of the main body upper housing through the strap hole and including a fastening portion coupled to an end of the strap. 6. The method of claim 5,
The monitoring unit
A communication unit that is connected to the communication network and communicates with the communication unit to receive an electrical or communication signal corresponding to any one of a separation distance to the strap converted by the sensor unit, a change in the separation distance, A control unit;
An output unit connected to the control unit and displaying an unwinding or winding state of the strap corresponding to the electric or communication signal; And
And an alarm unit for generating an alarm in response to a determination result of the control unit when the control unit determines that the strap is loosened or wound up in comparison with a predetermined condition and is abnormal. 5. The method of claim 4,
The tie-
Further comprising a tie-down checking means spaced from the bobbin and further comprising a sensor support mounted on the bottom of the lower housing to support the sensor portion. The method according to claim 1,
Wherein the sensor unit is an optical sensor for distance measurement or an ultrasonic sensor. The method according to claim 6,
Wherein the monitoring unit includes tie-down checking means connected to a ship operation management system installed in the ship.

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