Cargo handling arm operation training device

Abstract

According to an embodiment of the present invention, there is provided a training device for operating a cargo-handling arm, the device including a frame forming a training space inside, at least one screen provided in the frame and onto which a cargo-handling arm training video is projected, and at least one video output unit for outputting the cargo-handling arm training video toward the screen, the video output unit being provided outside the frame and outputting the cargo-handling arm training video toward an outer surface of the screen, thereby preventing a trainee positioned within the frame from being projected onto the screen.

Description

[Technical field]

[0001] The present invention relates to a training device for operating a loading and unloading arm. [Background technology]

[0002] Generally, LNG (Liquefied Natural Gas) is transported by an LNG carrier and transferred to an onshore LNG storage tank through an unloading arm, marine piping, etc. At this time, the operator of the unloading arm is required to perform precise operations to connect the unloading arm to the LNG / NG connection pipe located on the LNG carrier, and if the operation is not performed correctly, it may cause material or human damage due to a collision between the unloading arm and the LNG carrier.

[0003] This requires skilled operators to operate the loading arms, but the problem is that it is difficult for operators to practice operating the loading arms because the arrival and departure times of LNG ships are fluid and the number of loading arms is limited.In particular, there is a possibility that unexpected emergency situations may occur when operating the loading arms, and untrained operators may not be able to operate them properly, resulting in accidents. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a training device for operating a cargo handling arm to solve the above-mentioned problems.

[0005] The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0006] According to an embodiment of the present invention, there is provided a training device for operating a cargo-handling arm, the device including a frame forming a training space inside, at least one screen provided in the frame and onto which a cargo-handling arm training video is projected, and at least one video output unit for outputting the cargo-handling arm training video toward the screen, the video output unit being provided outside the frame and outputting the cargo-handling arm training video toward an outer surface of the screen, thereby preventing a trainee positioned within the frame from being projected onto the screen.

[0007] In addition, each of the image output units may include a projector that projects the loading and unloading arm training image upward or downward, and a reflector provided above or below the projector that reflects the loading and unloading arm training image projected from the projector onto the screen.

[0008] The projector may be a plurality of projectors each projecting a different viewpoint for training the loading and unloading arm, and may provide a trainee wearing polarized glasses with a stereoscopic image.

[0009] In addition, the screen may be made of a translucent material so that the loading arm training image projected on the outer surface of the screen can be seen through the inside of the frame.

[0010] The training device may further include a trainee operation unit that receives at least one operation input for operating a loading arm from the trainee, and a control unit that updates the loading arm training video output by the video output unit in response to the operation input.

[0011] In addition, the trainee operation unit includes a mobile operation unit used by the trainee inside the frame and a fixed operation unit used by the trainee outside the frame, but only a portion of the operation input by the fixed operation unit can be input to the mobile operation unit by the control unit.

[0012] In addition, when the operation input is transmitted to the control unit by the fixed operation unit, the control unit updates the loading arm training video with a fixed viewpoint, and when the operation input is transmitted to the control unit by the mobile operation unit, the control unit updates the loading arm training video with a viewpoint that changes depending on the trainee's position.

[0013] The training device may further include a sensor for detecting a change in the position of the trainee within the frame, and the control unit may update the loading arm training image based on the change in the position received from the sensor.

[0014] The system further includes an administrator operation unit that transmits an administrative input to the control unit regarding at least one of a plurality of pieces of emergency situation information including a change in the surrounding environment, a loss of power, a component failure, and a line break between a QRH (Quick Release Hooks) and the ship, and the control unit can update the loading arm training video in response to the administrative input.

[0015] Also, at least a part of the operation input by the trainee operation unit can be restricted in accordance with the administrative input. Effect of the Invention

[0016] According to the present invention, a trainee can repeatedly undergo training in operating the loading and unloading arm through the trainee's operation unit.

[0017] Furthermore, according to the present invention, the trainee's ability to respond to emergency situations can be enhanced through the manager operation unit, and damage to equipment caused by operational errors during actual operation can be prevented.

[0018] Furthermore, according to the present invention, the image output unit outputs the loading arm training image toward the outer surface of the screen, so that the trainee positioned within the frame can be prevented from being projected onto the screen.

[0019] In addition, according to the present invention, a plurality of projectors can project different cargo handling arm training images onto each screen, providing trainees with a cargo handling arm training site with improved stereoscopic effect and realism.

[0020] In addition, according to the present invention, the reflection unit changes the projection path and distance of the loading and unloading arm training image projected from the projector, so that the loading and unloading arm training image can be enlarged and output onto the screen even if the distance from the screen to the image output unit is not long, thereby improving spatial efficiency.

[0021] In addition, according to the present invention, the loading arm training image can be updated according to the trainee's position and visual changes received from the sensing sensor, thereby providing the trainee with a sense of reality.

[0022] In order to more fully understand the drawings referred to in the detailed description of the present invention, a brief description of each of the drawings is provided. [Brief description of the drawings]

[0023] [Figure 1] 1 is a block diagram of a loading arm operation training device according to an embodiment of the present invention. [Diagram 2] 1 is a perspective view of a loading arm operation training apparatus according to an embodiment of the present invention. FIG. [Diagram 3] FIG. 2 is a diagram illustrating a video output unit according to an embodiment of the present invention. [Figure 4] 1 is a diagram showing an example of use of a loading arm operation training device according to an embodiment of the present invention. [Diagram 5] 1 is a diagram showing an example of use of a loading arm operation training device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Also, a method of constructing and using an apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same reference numbers or characters shown in each drawing indicate parts or components that perform substantially the same functions. For the convenience of the following description, the directions of up, down, left, and right are based on the drawings, and the scope of the rights of the present invention is not necessarily limited to these directions.

[0025] Terms including ordinal numbers such as first, second, etc. may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another. For example, a first component may be named a second component, and similarly, the second component may be named the first component, without departing from the scope of the invention. The term "and / or" includes a combination of multiple associated items or any one item of multiple associated items.

[0026] The terms used in this specification are used to describe the embodiments and are not intended to limit and / or restrict the present invention. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, the terms "include" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in this specification, and should be understood not to preclude the presence or additional possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0027] Throughout the specification, when a part is said to be connected to another part, this includes not only the case where the part is directly connected to another part, but also the case where the part is indirectly connected through another structure in between. Furthermore, when a part is said to include a certain component, this does not mean that the other component is excluded, but that the part may further include the other component, unless otherwise specified.

[0028] In addition, terms such as "unit" and "module" used in this specification refer to a unit that processes at least one function or operation, and may be embodied in hardware or software, or a combination of hardware and software.

[0029] FIG. 1 is a block diagram of a loading arm operation training apparatus according to an embodiment of the present invention.

[0030] Referring to FIG. 1, a loading arm operation training device 1000 may include a frame 100, a screen 200, a video output unit 300, an audio output unit 400, a trainee operation unit 500, an administrator operation unit 600, a detection sensor 700, and a control unit 800.

[0031] The frame 100 can form a training space therein so that a trainee can carry out loading arm operation training.

[0032] The screen 200 is provided on at least one surface of the frame 100, and a loading arm training video can be projected onto it. A trainee can perform training such as connecting the loading arm to the LNG ship and disconnecting it from the LNG ship through the loading arm training video projected onto the screen 200. The screen 200 can be of various types such as a manual screen, a motorized screen, a fixed screen, etc., but is not limited thereto. Alternatively, a display panel made of an LCD, an OLED, an LED, etc. can be used.

[0033] The video output unit 300 can output a loading arm training video to the screen 200. For example, the loading arm training video may include a loading arm having a plurality of outboard arms and inboard arms, a loading arm driving device and a control device, an LNG ship located at sea, an LNG storage tank on the LNG ship, an LNG storage tank located on land, and the like.

[0034] The sound output unit 400 can output at least one sound related to the cargo arm training to the trainee. For example, the sound output unit 400 can output sounds generated by driving the cargo arm, the cargo arm driving device, the control device, etc., or outputs sounds generated in response to changes in the marine environment such as rain, wind, waves, etc. However, the sound output unit 400 is not limited to these.

[0035] The trainee operation unit 500 can transmit at least one operation input for operating the cargo handling arms from the trainee to the control unit 800. The operation input can include outboard arm selection / extension, outboard arm selection / folding, inboard arm selection / raise, inboard arm selection / lower, etc. Also, the trainee operation unit 500 can use various input devices applicable in the technical field, such as keys, touch panels, switches, etc.

[0036] In the embodiment, the trainee operation unit 500 transmits operation input for operating the loading arm from the trainee to the control unit 800, and may include a mobile operation unit 510 used by the trainee inside the frame 100, and a fixed operation unit 520 used by the trainee outside the frame 100. At this time, only a part of the operation input by the fixed operation unit 520 may be input to the mobile operation unit 510. For example, the fixed operation unit 520 may include functions such as image switching, menu selection, device selection, and operation of the audio output unit 400, in addition to an input function for operating the loading arm.

[0037] In the embodiment, when the mobile operation unit 510 transmits an operation input to the control unit 800, the control unit 800 can update the cargo handling arm training video in which the viewpoint changes according to the trainee's position. For example, a position sensor is attached to the mobile operation unit 510, and the cargo handling arm training video can be updated based on the trainee's position change detected by the position sensor. Also, when the fixed operation unit 520 receives an operation input, the control unit 800 can update the cargo handling arm training video with a fixed viewpoint. At this time, the fixed reference viewpoint may be the viewpoint where the trainee was last located just before operating the fixed operation unit 520. That is, when the mobile operation unit 510 transmits an operation input to the control unit 800 by the trainee, the control unit 800 can update the cargo handling arm training video projected on the screen 200 according to the trainee's position change. Also, when the fixed operation unit 520 transmits an operation input from the trainee to the control unit 800, the control unit 800 can update the cargo handling arm training video viewed from the same viewpoint regardless of the trainee's position change.

[0038] In the embodiment, the fixed operation unit 520 can change the mode of the cargo handling arm operation training. For example, a training method using the mobile operation unit 510 and a training method using the fixed operation unit 520 can be selected through various input devices of the fixed operation unit 520. This allows the trainee to perform cargo handling arm operation training suited to the trainee operation unit 500 used, thereby further improving the efficiency of the cargo handling arm operation training.

[0039] The administrator operation unit 600 can transmit an administration input related to at least one of the multiple pieces of emergency situation information from the administrator to the control unit 800. For example, the administration input can be generated by the administrator turning on or off a switch that can generate each piece of emergency situation information. At this time, the emergency situation information can include changes in the surrounding environment (e.g., changes in the marine environment such as wind direction, wind speed, water level, time, and weather), loss of power, component failure, and line detachment between the QRH (Quick Release Hooks) and the ship. In addition, the administrator operation unit 600 can use various input devices applicable in the technical field, such as keys, touch panels, and switches.

[0040] In an embodiment, the administrator operation unit 600 may include at least one function of managing a trainee's training history, managing training videos, and managing evaluation reports for quantitative / qualitative evaluation. For example, the trainee's training history may include information on the trainee's training interruption or completion by task or stage. In addition, for example, the training video management may include management of video storage, playback, stopping, etc., and the evaluation report management may include management of the trainee's score, score total, evaluation opinion input, etc. by task or stage.

[0041] Based on the management input of the administrator transmitted from the administrator operation unit 600 to the control unit 800, the control unit 800 can update the cargo-handling arm training video output by the video output unit 300. For example, when the administrator operation unit 600 transmits management input related to emergency situation information of the line separation between the QRH of the cargo-handling arm and the ship from the administrator to the control unit 800, the control unit 800 can update the cargo-handling arm training video with a state in which the line between the QRH and the ship is separated. At this time, the trainee can input an operation input for dealing with the emergency situation to the trainee operation unit 500 by watching the updated cargo-handling arm training video. This can strengthen the trainee's ability to deal with not only given situations but also emergency situations, and prevent equipment damage due to erroneous operation during actual operation.

[0042] In an embodiment, in response to an administrator's management input transmitted from the administrator operation unit 600 to the control unit 800, at least a part of the operation input by the trainee operation unit 500 can be restricted by the control unit 800, particularly by a control logic preset in the control unit 800. For example, when the administrator operation unit 600 transmits an administration input related to emergency situation information of a malfunction of one of the multiple arms of the loading arm to the control unit 800 by the operation of the administrator, the operation input related to the operation of the malfunctioning arm in the trainee operation unit 500 can be restricted by a control logic preset in the control unit 800 so that it is not valid. At this time, the trainee can input another operation input to the trainee operation unit 500 in place of the restricted operation input in order to deal with the emergency situation.

[0043] The detection sensor 700 can detect a change in position and / or a change in vision of the trainee. The control unit 800 can receive a signal corresponding to the change in position from the detection sensor 700 and update the loading arm training image output from the image output unit 300 based on the change in position. For example, the detection sensor 700 can be a position sensor or a camera, and can be attached to polarized glasses, work clothes, shoes, etc. worn by the trainee to detect position changes including the trainee's speed, changes in momentary movement, etc. However, the present invention is not limited thereto, and various detection technologies can be applied to the detection sensor 700 depending on the embodiment to which the present invention is applied.

[0044] In an embodiment, the detection sensor 700 may be configured with a plurality of detection sensors 700 in consideration of the scale of the frame 100, the movement of the trainee's position, the trainee's vision, the detection angle, distance, accuracy, etc. relative to the trainee. The control unit 800 may update the cargo arm training video output from the video output unit 300 based on the position change received from the detection sensor 700. For example, when the trainee moves toward the screen 200 on which the cargo arm training video is projected, the control unit 800 may update the cargo arm training video so that the size of the cargo arm increases. This may provide the trainee with the same sense of reality as operating a cargo arm at an actual site.

[0045] The control unit 800 controls the overall operation of the hardware or software of the loading arm operation training apparatus 1000. For example, the control unit 800 can update a loading arm training video via the video output unit 300 or the audio output unit 400 in response to a trainee's operation input transmitted from the trainee operation unit 500 to the control unit 800, or an administrator's management input transmitted from the administrator operation unit 600 to the control unit 800, and control the loading arm operation training apparatus 1000 as a whole.

[0046] In an embodiment, the control unit 800 can control the actual operation or non-operation of not only the loading arm but also the auxiliary devices. For example, the control unit 800 includes operation or non-operation conditions (e.g., control logic) and can control the loading arm not to operate when an operation input that does not match the operation conditions is transmitted. In addition, for example, the control unit 800 includes an emergency shutdown function (ESD) and can control equipment such as the loading arm to switch to a dangerous state and not to operate due to an erroneous operation or a malfunction.

[0047] Although not shown in Fig. 1, according to an embodiment, the loading arm operation training apparatus 1000 may further include a communication unit. The communication unit is provided for direct connection with the inside and / or outside or connection via a network, and may be a wired and / or wireless communication unit. Specifically, the communication unit may transmit data from the trainee operation unit 500, the administrator operation unit 600, the detection sensor 700, the control unit 800, etc., in a wired or wireless manner, or may receive data from the outside in a wired or wireless manner and transmit it to the control unit 800 or store it in a memory. For example, the communication unit may include, but is not limited to, a short-range communication unit (Ethernet), a Bluetooth communication unit, a Bluetooth Low Energy (BLE) communication unit, a near field communication unit, a Wi-Fi (WLAN) communication unit, a ZigBee (ZigBee) communication unit, an Infrared Data Association (IrDA) communication unit, a Wi-Fi Direct (WFD) communication unit, an Ultra Wideband (UWB) communication unit, etc. The communication unit may be embodied as at least one module or chip.

[0048] Although not shown in Fig. 1, according to an embodiment, the cargo handling arm operation training apparatus 1000 may further include a memory. The memory may store a program for executing the operation of the cargo handling arm operation training apparatus 1000, data resulting from the execution of the operation, and the like. For example, the memory may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk.

[0049] Not all of the components shown in Fig. 1 are essential components for the loading arm operation training apparatus 1000. For example, the loading arm operation training apparatus 1000 can be realized with more components than those shown in Fig. 1, and the loading arm operation training apparatus 1000 can be realized with fewer components than those shown in Fig. 1.

[0050] FIG. 2 is a perspective view of a loading arm operation training apparatus according to an embodiment of the present invention.

[0051] 2, the frame 100 has a screen 200 on one side, forming a training space inside, where trainees can receive training in operating the loading arm within the frame 100. The frame 100 can be configured in a shape such as a hexahedron, a rectangular parallelepiped, or a U-shape, but is not limited thereto.

[0052] The screen 200 is provided on at least one surface of the frame 100, and a loading arm training image can be projected onto it. In an embodiment, the screen 200 is made of a translucent material, and the loading arm training image projected onto the outer surface of the screen 200 can be seen through from inside the frame 100. This allows a trainee to perform loading arm operation training even inside the frame 100. The screen 200 can be made of any one selected from the group consisting of PET (Polyethyleneterephtalate), PVC (Polyvinyl Chloride), PC (Polycarbonate), glass, and acrylic, but is not limited thereto, and any material that is translucent enough to see the loading arm training image from inside the frame 100 can be used for the screen 200.

[0053] In the embodiment, the screen 200 may be provided on only one side of the frame 100, but is not limited thereto, and a plurality of screens 200 may be provided on three or six sides of the frame 100. For example, a first screen 210 may be provided in front of a trainee positioned inside the frame 100, a second screen 220 may be provided on the left side, and a third screen 230 may be provided on the right side.

[0054] 2 shows that the cargo handling arm training video is projected only onto the first screen 210, but according to an embodiment, the entire cargo handling arm training video may be separately projected continuously and three-dimensionally onto each of the first screen 210, the second screen 220, and the third screen 230. That is, the entire view of the cargo handling arm training video is separately projected onto the three screens 200, so that the cargo handling arm training video is projected continuously and three-dimensionally onto the three sides of the frame 100, thereby improving the trainee's immersive and realistic feeling in the cargo handling arm operation training.

[0055] Also, for example, the control unit 800 updates the cargo arm training video in response to the trainee's operation input transmitted from the trainee operation unit 500 to the control unit 800, and an image that allows the trainee to perform cargo arm operation training may be projected on the first screen 210. Specifically, for example, an image showing the most appropriate operation method for cargo arm operation may be projected on the second screen 220, so that the trainee can judge whether his / her operation input was appropriate and confirm the most appropriate operation method. As another example, a control logic flow chart or an operation guide may be projected on the second screen 220 so that the trainee's operation input can be judged to be a valid operation or an erroneous operation according to a preset control logic. However, the present invention is not limited to this.

[0056] Also, for example, loading arm operation training images showing different situations may be projected onto the first screen 210, the second screen 220, and the third screen 230, respectively. For example, the control unit 800 may update the loading arm operation training image on the screen the trainee is looking at in response to the trainee's operation input, based on the trainee's visual changes transmitted from the detection sensor 700 to the control unit 800. As another example, loading arm operation training images in the visual angle of a third person (e.g., a training observer) may be projected onto the second screen 220 and the third screen 230, so that not only the trainee but also the training observer may indirectly perform loading arm operation training. However, this is not limited to this.

[0057] At least one image output unit 300 is provided corresponding to the screen 200, and can output a cargo-handling arm training image toward the screen 200. In an embodiment, the image output unit 300 is provided outside the frame 100, and can output a cargo-handling arm training image toward the outer surface of the screen 200. This can prevent a trainee located within the frame 100 from being projected onto the screen, and allows the trainee to clearly view the cargo-handling arm training image even if the training location inside the frame 100 is bright.

[0058] In an embodiment, when the screen 200 is configured with a plurality of screens 200, the image output unit 300 may also be configured with a plurality of image output units 300 corresponding to each screen 200. In this case, each image output unit 300 may project a different loading arm training image corresponding to each screen 200.

[0059] The loading arm operation training device 1000 shown in FIG. 2 is merely an example, and various configurations can be applied depending on the embodiment to which the present invention is applied.

[0060] FIG. 3 is a diagram illustrating a video output unit according to an embodiment of the present invention.

[0061] 3, the image output unit 300 may include a projector 310 that projects a cargo handling arm training image upward or downward. In an embodiment, the projector 310 may include a plurality of projectors 310, and each projector 310 may project a cargo handling arm training image from a different viewpoint. This may provide a three-dimensional image to a trainee wearing polarized glasses, and provide the trainee with a cargo handling arm training site with a higher three-dimensional effect and a higher sense of realism.

[0062] The image output unit 300 may include a reflector 320 provided above or below the projector 310. The reflector 320 may reflect the cargo handling arm training image projected from the projector 310 onto the screen 200. By changing the projection path of the cargo handling arm training image, the cargo handling arm training image can be enlarged and output onto the screen 200 even if the distance from the screen 200 to the image output unit 300 is not long, thereby improving space efficiency.

[0063] The image output unit 300 shown in FIG. 3 is merely an example, and various configurations may be applied depending on the embodiment to which the present invention is applied.

[0064] FIG. 4 shows an example of use of the cargo handling arm operation training device according to the embodiment of the present invention.

[0065] 4(a) shows an example of use in which the mobile operation unit 510 transmits an operation input from the trainee to the control unit 800. When the trainee's operation input is transmitted to the control unit 800 by the mobile operation unit 510, the control unit 800 can update the cargo handling arm training image projected from the image output unit 300 so that the viewpoint changes according to the trainee's position. At this time, the detection sensor 700 provided on one side of the frame 100 detects the change in the trainee's position, and the control unit 800 can update the cargo handling arm training image based on the change in position.

[0066] 4(b) is an example of use in which the fixed operation unit 520 transmits an operation input from the trainee to the control unit 800. When the fixed operation unit 520 transmits the operation input to the control unit 800, the control unit 800 can update the loading arm training video with a fixed viewpoint. At this time, the viewpoint that serves as the reference for the fixation can be the viewpoint that the trainee was finally positioned at immediately before operating the fixed operation unit 520.

[0067] At this time, the fixed operation unit 520 can change the mode of the cargo handling arm operation training to select a training method using the mobile operation unit 510 or a training method using the fixed operation unit 520. This allows the trainee to perform cargo handling arm operation training suited to the trainee operation unit 500 being used, thereby further improving the efficiency of the cargo handling arm operation training.

[0068] FIG. 5 shows an example of use of the cargo handling arm operation training device according to the embodiment of the present invention.

[0069] 5(a) is an example of use of the cargo arm operation training device related to the outboard arm of the cargo arm. When the trainee operation unit 500 transmits an operation input from the trainee to the control unit 800 to extend or fold the outboard arm, the control unit 800 can update the cargo arm training image so that the outboard arm of the cargo arm is extended or folded. In general, the operation input to extend the outboard arm can be updated with the movement of the cargo arm moving forward and upward, and the operation input to fold the outboard arm can be updated with the movement of the cargo arm moving backward and downward.

[0070] 5(b) is an example of use of the cargo arm operation training device related to the inboard arm of the cargo arm. When the trainee operation unit 500 transmits an operation input for raising the inboard arm or lowering the inboard arm from the trainee to the control unit 800, the control unit 800 can update the cargo arm training image so that the inboard arm of the cargo arm rises or falls. In general, the operation input for raising the inboard arm can be updated with the movement of the cargo arm moving backward and upward, and the operation input for lowering the inboard arm can be updated with the movement of the cargo arm moving forward and downward.

[0071] As described above, the drawings and the specification disclose the best mode for carrying out the present invention. Although specific terms are used herein, they are merely used for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, a person having ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical scope of the present invention should be determined by the technical ideas of the appended claims.

Claims

1. A loading arm operation training device, comprising: A frame that forms a training space inside; At least one screen provided on the frame and onto which a loading arm training image is projected; at least one image output unit that outputs the loading arm training image to the screen; The image output unit is provided outside the frame and outputs the loading arm training image toward the outer surface of the screen, thereby preventing a trainee positioned within the frame from being projected onto the screen.

2. The device described in claim 1, wherein each of the image output units includes a projector that projects the loading and unloading arm training image upward or downward, and a reflector provided above or below the projector that reflects the loading and unloading arm training image projected from the projector onto the screen.

3. 3. The apparatus according to claim 2, wherein said projectors are comprised of a plurality of projectors projecting loading arm training images from different viewpoints, and provide a stereoscopic image to a trainee wearing polarized glasses.

4. 2. The apparatus according to claim 1, wherein the screen is made of a translucent material so that the loading arm training image projected on the outer surface of the screen can be seen through from inside the frame.

5. a trainee operation unit that receives at least one operation input for operating the loading arm from the trainee; The device according to claim 1 , further comprising: a control unit that updates the loading arm training video output by the video output unit in response to the operation input.

6. The trainee operation unit includes a mobile operation unit used by the trainee inside the frame and a fixed operation unit used by the trainee outside the frame, The device according to claim 5 , wherein only a part of the operation input by the fixed operation unit is input to the mobile operation unit.

7. When the operation input is transmitted to the control unit by the fixed operation unit, the control unit updates the loading arm training video with a fixed viewpoint, The device according to claim 6 , wherein when the operation input is transmitted to the control unit by the mobile operation unit, the control unit updates the loading arm training video, the viewpoint of which changes depending on the trainee's position and vision.

8. a sensor for detecting a change in the position of the trainee within the frame; The apparatus according to claim 5 , wherein the control unit updates the loading arm training image based on the position change transmitted from the detection sensor to the control unit.

9. The system further includes an administrator operation unit that receives an administrator input related to at least one of a plurality of emergency situation information including a change in the surrounding environment, a loss of power, a component failure, and a line break between a QRH (Quick Release Hooks) and the ship, The apparatus of claim 5 , wherein the control unit updates the loading arm training video in response to the management input.

10. The device according to claim 9 , wherein at least a part of the operation input by the trainee operation unit is limited by the control unit in response to the administrative input.

Images