A shipboard distributed electro-optical image display system
By introducing a portable control console and a hidden support structure into the shipborne distributed optoelectronic image display system, the problem of inflexible secondary development and debugging of display and control programs in traditional systems has been solved, realizing convenient on-site operation and flexible display control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CENT CHINA OPTOELECTRONICS TECH RES INST (CHINA STATE SHIPBUILDING CORP 717TH RES INST)
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-19
Smart Images

Figure CN224383846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display control development technology, specifically to a shipborne distributed optoelectronic image display system. Background Technology
[0002] In shipboard optoelectronic image display control scenarios, the current primary reliance is on a display console for centralized control of distributed multi-point image displays. Since the display console and various signal processing cabinets are fixed in location, confirming the image display content and cabinet status on the display console mainly relies on remote voice commands. This requires on-site verification of the development process and display results at the corresponding signal processing cabinet location, which cannot meet the flexible needs of optoelectronic image display and operation in the diverse scenarios on board. This limits the convenience of operators and debugging personnel in operating and displaying optoelectronic images from different locations.
[0003] Therefore, it is necessary to study a shipborne optoelectronic image display system that is more flexible in operation and debugging. Utility Model Content
[0004] Based on the above description, this utility model provides a shipborne distributed photoelectric image display system to solve the problems of inflexible secondary development and debugging of display and control programs in traditional shipborne distributed photoelectric image display systems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A shipborne distributed optoelectronic image display system includes a display and control console, multiple signal processing cabinets, and multiple display screens. The display and control console is communicatively connected to the multiple signal processing cabinets, and the multiple signal processing cabinets are communicatively connected to the multiple display screens in a one-to-one correspondence. The system also includes a portable control console, which is detachably communicatively connected to the signal processing cabinets through a communication port. A first-level development module is embedded in the portable control console. The signal processing cabinets are provided with a hidden support structure, which cooperates with the portable control console when opened.
[0006] Compared with existing technologies, the technical solution of this application has the following beneficial technical effects: The shipborne distributed optoelectronic image display system provided by this utility model controls multiple distributed displays through a traditional display control console in ordinary display control scenarios, with the signal processing cabinet mainly playing the role of signal conversion and port management. When secondary development or debugging of a single on-site display control program is required, opening the hidden support structure can provide structural support for the portable control console. At the same time, the portable control console can be connected to the signal processing cabinet for communication, allowing for secondary development and debugging of the display control program on-site in conjunction with the image display content of the display screen. This eliminates the need for personnel to go to the site for confirmation during debugging with a traditional display control console, simplifying the work procedure and improving the flexibility of the display control system operation.
[0007] Based on the above technical solution, the present invention can be further improved as follows.
[0008] Furthermore, a second-level development module is embedded within the display screen.
[0009] Furthermore, the first-level development module has a higher priority than the second-level development module.
[0010] Furthermore, the display screen is equipped with an input module.
[0011] Furthermore, the signal processing cabinet includes a first control module, and a first interface group, a second interface group, and a third interface group that are communicatively connected to the first control module. The first interface group is used to connect to the display screen, the second interface group is used to connect to the display and control console, and the third interface group is disposed within a hidden support structure and is used to connect to the portable control console.
[0012] Furthermore, the first interface group, the second interface group, and the third interface group each include at least an FC port, an HDMI port, and a PAL port.
[0013] Furthermore, the signal processing cabinet has an embedded mounting slot on its cabinet body, and the third interface group and the hidden support structure are disposed in the mounting slot;
[0014] The concealed support structure includes a tabletop and a damping hinge. The damping hinge is horizontally arranged at the lower part of the mounting groove. The lower end of the tabletop is hinged to the cabinet through at least one damping hinge, and the tabletop can rotate vertically around the damping hinge. A locking mechanism is provided at the upper part of the mounting groove.
[0015] When the upper end of the tabletop is rotated to the first extreme position, the entire tabletop is embedded in the mounting groove and blocks the third interface group, and the locking mechanism cooperates with the upper end of the tabletop; when the upper end of the tabletop is rotated to the second extreme position, the tabletop is in a horizontal setting state.
[0016] Furthermore, the upper end of the mounting groove is a blind groove structure, which is vertically arranged with its open end facing downwards;
[0017] The tabletop includes an upper folding plate and a lower folding plate. The lower end of the lower folding plate is hinged to the bottom end of the mounting groove via at least one damping hinge. The bottom end of the upper folding plate is hinged to the upper end of the lower folding plate on the side facing the mounting groove, and the upper end of the lower folding plate is provided with an extension on the side away from the mounting groove.
[0018] When the tabletop is rotated to the first extreme position, the upper end of the upper folding plate slides into the blind groove structure; when the tabletop is rotated to the second extreme position, both the upper and lower folding plates are in a horizontally positioned state.
[0019] Furthermore, the extension of the lower folding plate is provided with a first limiting part, and the bottom end of the upper folding plate is provided with a second limiting part that is adapted to the first limiting part; when the table board as a whole is located at the first extreme position or the second extreme position, the first limiting part and the second limiting part are nested together.
[0020] Furthermore, the locking mechanism includes a butterfly bolt, the stud of which is threadedly connected to the cabinet; when in the locked state, the locking part of the butterfly bolt engages with the upper end of the tabletop. Attached Figure Description
[0021] Figure 1 A schematic diagram of the overall architecture of a shipborne distributed optoelectronic image display system provided for an embodiment of this utility model;
[0022] Figure 2 This is a schematic block diagram illustrating the communication connection relationship of the signal processing cabinet provided in an embodiment of the present utility model.
[0023] Figure 3 A schematic diagram of a hidden support structure on a signal processing cabinet provided in one embodiment of the present utility model; wherein, (a) is the state in which the table is in the second extreme position, and (b) is the state in which the table is in the first extreme position;
[0024] Figure 4 This is a schematic diagram of another hidden support structure on a signal processing cabinet provided in an embodiment of the present utility model; wherein, (a) is the state in which the table is in the second extreme position, (b) is the state in which the table is between the first extreme position and the second extreme position, and (c) is the state in which the table is in the first extreme position.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Signal processing cabinet; 101. Cabinet body; 101a. Mounting slot; 101b. Blind slot structure; 102. First control module; 103. First interface group; 104. Second interface group; 105. Third interface group; 2. Display console; 3. Display screen; 4. Portable control console; 5. Concealed support structure; 501. Tabletop; 5011. Upper folding plate; 5011a. Second limiting part; 5012. Lower folding plate; 5012a. Extension part; 5012b. First limiting part; 5013. Hinge shaft; 5014. Vibration damping component; 5015. Handle; 502. Damping hinge; 503. Locking mechanism. Detailed Implementation
[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0029] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "under" or "below" of other elements or features will be oriented "over" of other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0030] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.
[0031] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.
[0032] like Figure 1As shown, this utility model provides a shipborne distributed optoelectronic image display system, including a display control console 2, multiple signal processing cabinets 1, and multiple display screens 3. The display control console 2 is communicatively connected to the multiple signal processing cabinets 1, and the multiple signal processing cabinets 1 are communicatively connected to the multiple display screens 3 in a one-to-one correspondence. The system also includes a portable control console 4, which is detachably communicatively connected to the signal processing cabinets 1 through a communication port. A first-level development module is embedded in the portable control console 4. The signal processing cabinets 1 are provided with a hidden support structure 5, which can cooperate with the portable control console 4 when opened.
[0033] It is understandable that the shipborne distributed optoelectronic image display system provided in this embodiment controls multiple field-distributed display screens 3 via a traditional display control console 2 in ordinary display control scenarios. The signal processing cabinet 1 mainly plays the role of signal conversion and port management. For example, it converts the display signal transmitted from the display control console 2 and outputs the set display content to the display screen 3. When secondary development or debugging of the display control program at a certain field is required, the hidden support structure 5 can be opened to provide structural support for the portable control console 4. At the same time, the portable control console 4 can be connected to the signal processing cabinet 1 for communication. This allows for secondary development and debugging of the display control program on-site in conjunction with the display page of the display screen 3, eliminating the need for personnel to go to the site for confirmation when debugging with the traditional display control console 2. This simplifies the work process and improves the flexibility of the display control system operation.
[0034] Based on the above technical solution, this embodiment can be further improved as follows.
[0035] In one possible implementation, a second-level development module is embedded within the display screen 3, and a development / debugging page is preset within the display screen 3. Preferably, the first-level development module has a higher priority than the second-level development module.
[0036] Commonly used and relatively simple development resources can be preset in the second-level development module. When secondary development or debugging of the on-site display and control program is required, lightweight development / debugging operations can be performed first through the on-site second-level development module.
[0037] The first-level development module offers richer development resources than the second-level module, and its development environment is superior, allowing for more complex development and debugging operations. When more complex functions are required and the second-level development module cannot meet the requirements, the hidden support structure 5 can be opened, and the portable control console 4 can be reliably installed on it. A communication connection can then be established between the signal processing cabinet 1 and the portable control console 4, enabling operation from the portable control console 4.
[0038] In one possible implementation, a dedicated input module, such as a button, keyboard, joystick and / or mouse, can be provided on the signal processing cabinet 1 or near the display screen 3. Alternatively, the display screen 3 can be set as a touch screen to enable it to have information input and display functions.
[0039] In one possible implementation, such as Figure 2 As shown, the signal processing cabinet 1 includes a first control module 102, and a first interface group 103, a second interface group 104, and a third interface group 105 communicatively connected to the first control module 102. The display screen 3 can be wall-mounted and installed on the cabinet body 101 of the signal processing cabinet 1. The first interface group 103 is used to connect to the display screen 3, the second interface group 104 is used to connect to the display control console 2, and the third interface group 105 is disposed within a hidden support structure 5 and is used to connect to the portable control console 4. When the portable control console 4 is not in use, the third interface group 105 is hidden within the hidden support structure 5 to prevent it from being exposed and damaged (e.g., accidental water ingress). The third interface group 105 can only be exposed after the hidden support structure 5 is opened, thus improving system security. Preferably, the first interface group 103, the second interface group 104, and the third interface group 105 each include at least an FC port based on the FC communication protocol, an HDMI port based on GTX, and a PAL port.
[0040] For example, in a certain implementation scenario, the first control module 102 inside the cabinet is implemented using a SOC board. It manages the video interface, accepts data in different video formats, converts it internally into horizontal and vertical image signals, processes them, and then sends them to different protocol interfaces (IPs). Currently supported image formats include Aurora protocol image transceiver, FC image transceiver, HDMI image transceiver, and PAL image transceiver. The wall-mounted display 3 is installed on the cabinet door, and its HDMI interface is connected to the chassis inside the signal processing cabinet 1 via an HDMI-to-VPX cable for HDMI image transmission. QT software can be deployed on the wall-mounted display to develop the display control interface, and the touch display 3 generates corresponding touch commands which are sent to the SOC board (first control module 102) inside the cabinet via Ethernet. The wall-mounted display 3 supports up to 4K@30Hz high-definition display and can be designed to overlay main channel image display and image status information, with added image display-related control buttons and command issuance.
[0041] The portable (image) control console 4 is similar to a ruggedized computer. Its built-in SOC board also has FC, HDMI, and PAL interfaces. The image from signal processing cabinet 1 can be transmitted to the portable control console 4 via fiber optic cable and PAL coaxial cable, and then displayed on display screen 3 via HDMI interface. The portable control console 4 has peripherals such as keyboard, mouse, and joystick, and can replace the traditional display console 2 to realize the development of display and control interface and the display and control of photoelectric images. It can send instructions to signal processing cabinet 1 via Ethernet. The entire image display solution is developed based on the SOC-desktop CPU chip architecture, which has high compatibility. Through the reasonable use of SOC resources, different display screens 3 can be allocated to display content to meet various development / debugging and usage needs.
[0042] In one possible implementation, in order to provide a more stable and reliable working environment during the operation of the portable control console 4, such as Figure 3 As shown in the side view, the signal processing cabinet 1 has an embedded mounting slot 101a on its cabinet body 101, which is vertically oriented. This mounting slot 101a can be a recessed structure on the side of the cabinet body 101 or a through slot structure traversing one side of the cabinet body 101. The third interface group 105 and the concealed support structure 5 are located within the mounting slot 101a. When the concealed support structure 5 is closed, it retracts into the mounting slot 101a, not affecting the space outside the cabinet body 101; simultaneously, the concealed support structure 5 covers the third interface group 105 within the mounting slot 101a, thereby improving system reliability and security.
[0043] More specifically, such as Figure 3 Figures (a) and (b) show side view diagrams of the concealed support structure 5 in two extreme positions. The concealed support structure 5 includes a tabletop 501 and a damping hinge 502. The damping hinge 502 is laterally positioned at the bottom of the mounting groove 101a. The lower end of the tabletop 501 is hinged to the cabinet 101 via at least one damping hinge 502, and the tabletop 501 can rotate vertically around the damping hinge 502. A locking mechanism 503 is provided at the upper part of the mounting groove 101a to lock the upper end of the tabletop 501 when it is idle. A stop is provided at the bottom of the mounting groove 101a adjacent to the edge of the damping hinge 502 to constrain the rotation angle of the tabletop 501.
[0044] like Figure 3As shown in Figure (b), when the upper end of the tabletop 501 is rotated to the first extreme position, the tabletop 501 is vertically positioned. At this time, the tabletop 501 is fully embedded in the mounting groove 101a and covers the third interface group 105. The locking mechanism 503 cooperates with the upper end of the tabletop 501 to lock the upper end of the tabletop 501.
[0045] like Figure 3 As shown in Figure (a), when the upper end of the tabletop 501 is rotated to the second extreme position, the tabletop 501 is in a horizontal setting state. This state is the working state of the hidden support structure 5. At this time, the portable control panel 4 can be placed on the tabletop 501, and the communication interface of the portable control panel 4 can be connected to the third interface group 105 of the signal processing cabinet 1.
[0046] To dampen vibrations between the upper part of the tabletop 501 and the cabinet 101 when the upper part of the tabletop 501 rotates to the first extreme position, and to reduce noise from the contact between the upper part of the tabletop 501 and the cabinet 101, a flexible vibration damping element 5014, such as a horizontally arranged rubber strip or rubber pad, can be installed on the side of the upper part of the tabletop 501 facing the cabinet 101. When the tabletop 501 rotates to the second extreme position, the vibration damping element 5014 can also provide a limiting function for the portable control panel 4 to prevent it from slipping off the tabletop.
[0047] As a response Figure 3 Improvements to the embodiments, such as Figure 4 As shown, the tabletop 501 can be set to foldable.
[0048] Correspondingly, such as Figure 4 As shown in Figures (a) to (c), the upper end of the mounting groove 101a is a blind groove structure 101b. The blind groove structure 101b is vertically arranged with its opening facing downwards. The upper end of the folding table 501 can slide up or down along the opening of the blind groove.
[0049] Specifically, the tabletop 501 includes an upper folding plate 5011 and a lower folding plate 5012. The lower end of the lower folding plate 5012 is hinged to the bottom end of the mounting groove 101a via at least one damping hinge 502, and its installation method is similar to... Figure 3 The embodiment shown has the following characteristics. The bottom end of the upper folding plate 5011 is hinged to the upper end of the lower folding plate 5012 on the side facing the mounting groove 101a. The upper folding plate 5011 can rotate vertically relative to the lower folding plate 5012 along its hinge axis 5013. To limit the rotation angle of the upper folding plate 5011 to a range not exceeding 180°, an extension 5012a is provided on the upper end of the lower folding plate 5012 on the side facing away from the mounting groove 101a.
[0050] like Figure 4Figures (a) to (c) show schematic diagrams illustrating the state of the folding tabletop 501 as it gradually rotates from the second extreme position to the first extreme position. Figure 4 Figure (b) shows the intermediate state. For example... Figure 4 As shown in Figure (c), when the tabletop 501 is rotated to the first extreme position, the upper end of the upper folding plate 5011 slides into the blind groove structure 101b. Figure 4 As shown in Figure (a), when the tabletop 501 is rotated to the second extreme position, the extension 5012a of the lower folding plate 5012 supports and limits the upper folding plate 5011. Based on the lever principle, both the upper folding plate 5011 and the lower folding plate 5012 are in a horizontally positioned state.
[0051] like Figure 4 As shown in the enlarged view of part A in Figure (b), the extension 5012a of the lower folding plate 5012 is provided with a first limiting part 5012b (e.g., a horizontally arranged protrusion), and the bottom end of the upper folding plate 5011 is provided with a second limiting part 5011a (e.g., a horizontally arranged groove) that is adapted to the first limiting part 5012b; when the tabletop 501 is in the first limit position or the second limit position, the first limiting part 5012b and the second limiting part 5011a are nested together.
[0052] When the tabletop 501 is in a horizontal position, the nested cooperation of the first limiting part 5012b and the second limiting part 5011a can better limit the upper folding plate 5011; when the tabletop 501 is in a vertical position, the nested cooperation of the first limiting part 5012b and the second limiting part 5011a can share the load-bearing pressure at the hinge shaft 5013 connecting the upper folding plate 5011 and the lower folding plate 5012, which is beneficial to improving structural stability and service life.
[0053] To facilitate pushing and pulling operations on the upper folding plate 5011, a handle 5015 can also be provided on the upper folding plate 5011. The handle 5015 does not interfere with the edge of the mounting groove 101a or the locking mechanism 503.
[0054] In one possible implementation, such as Figure 3 and Figure 4 As shown, the locking mechanism 503 is a rotary locking mechanism, preferably implemented using a butterfly bolt, the stud of which is threadedly connected to the cabinet 101. When in the locked state, the locking part of the butterfly bolt engages with the upper end of the tabletop 501.
[0055] For example, Figure 3 In the structure, the butterfly bolt is installed on the cabinet 101 at the position adjacent to the mounting groove 101a. When tightened, the larger part of the knob of the butterfly bolt presses the tabletop 501 into the mounting groove 101a. Figure 4 In the structure, the stud of the butterfly bolt extends into the blind groove structure 101b. When it is necessary to lock the upper folding plate 5011, by rotating the butterfly bolt, the end of its stud located in the blind groove presses the upper folding plate 5011 into the mounting groove 101a.
[0056] This utility model provides a shipborne distributed optoelectronic image display system. In ordinary display control scenarios, multiple distributed display screens 3 are controlled via a traditional display control console 2, while the signal processing cabinet 1 mainly functions as a signal converter and port manager. When secondary development or debugging of a single-site on-site display control program is required, the hidden support structure 5 can be opened to provide structural support for the portable control console 4. Simultaneously, through the third interface group 105 within the hidden support structure 5, the portable control console 4 and the signal processing cabinet 1 can be connected for communication, enabling on-site secondary development and debugging of the display control program in conjunction with the display screens 3.
[0057] The system provided by this utility model can meet diverse display needs, has low cost and better environmental adaptability. Operators and debugging personnel can directly confirm and control the status inside the signal processing cabinet on-site based on photoelectric images and display interface information without being separated from the display control console 2. This eliminates the need for staff to go to the site to confirm the screen during the debugging of the traditional display control console 2, simplifies the work procedure, and improves the flexibility and convenience of the display control system operation.
[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A shipborne distributed optoelectronic image display system, comprising a control console (2), multiple signal processing cabinets (1), and multiple display screens (3), wherein the control console (2) is communicatively connected to the multiple signal processing cabinets (1), and the multiple signal processing cabinets (1) are communicatively connected to the multiple display screens (3) in a one-to-one correspondence, characterized in that, The system also includes a portable control console (4), which is detachably connected to the signal processing cabinet (1) via a communication port. The portable control console (4) is equipped with a first-level development module. The signal processing cabinet (1) is provided with a hidden support structure (5), which cooperates with the portable control console (4) when it is opened.
2. The shipborne distributed optoelectronic image display system according to claim 1, characterized in that, The display screen (3) is embedded with a second-level development module.
3. The shipborne distributed optoelectronic image display system according to claim 2, characterized in that, The first-level development module has a higher priority than the second-level development module.
4. A shipborne distributed optoelectronic image display system according to any one of claims 1 to 3, characterized in that, The display screen (3) is equipped with an input module.
5. A shipborne distributed optoelectronic image display system according to claim 2 or 3, characterized in that, The signal processing cabinet (1) includes a first control module (102), and a first interface group (103), a second interface group (104) and a third interface group (105) that are communicatively connected to the first control module (102). The first interface group (103) is used to connect to the display screen (3), the second interface group (104) is used to connect to the display console (2), and the third interface group (105) is located in a hidden support structure (5) and is used to connect to the portable control console (4).
6. The shipborne distributed optoelectronic image display system according to claim 5, characterized in that, The first interface group (103), the second interface group (104) and the third interface group (105) each include at least an FC port, an HDMI port and a PAL port.
7. The shipborne distributed optoelectronic image display system according to claim 5, characterized in that, The signal processing cabinet (1) has an embedded mounting slot (101a) on its cabinet body (101), and the third interface group (105) and the hidden support structure (5) are located in the mounting slot (101a). The concealed support structure (5) includes a tabletop (501) and a damping hinge (502). The damping hinge (502) is horizontally arranged at the lower part of the mounting groove (101a). The lower end of the tabletop (501) is hinged to the cabinet (101) through at least one damping hinge (502), and the tabletop (501) can rotate vertically around the damping hinge (502). The upper part of the mounting groove (101a) is provided with a locking mechanism (503). When the upper end of the tabletop (501) is rotated to the first extreme position, the tabletop (501) is fully embedded in the mounting groove (101a) and covers the third interface group (105), and the locking mechanism (503) cooperates with the upper end of the tabletop (501); when the upper end of the tabletop (501) is rotated to the second extreme position, the tabletop (501) is in a horizontal setting state.
8. The shipborne distributed optoelectronic image display system according to claim 7, characterized in that, The upper end of the mounting groove (101a) is a blind groove structure (101b), which is vertically arranged and has its open end facing downward. The tabletop (501) includes an upper folding plate (5011) and a lower folding plate (5012). The lower end of the lower folding plate (5012) is hinged to the bottom end of the mounting groove (101a) via at least one damping hinge (502). The bottom end of the upper folding plate (5011) is hinged to the upper end of the lower folding plate (5012) on the side facing the mounting groove (101a), and the upper end of the lower folding plate (5012) is provided with an extension (5012a) on the side facing away from the mounting groove (101a). When the tabletop (501) is rotated to the first extreme position, the upper end of the upper folding plate (5011) slides into the blind groove structure (101b); when the tabletop (501) is rotated to the second extreme position, both the upper folding plate (5011) and the lower folding plate (5012) are in a horizontal setting state.
9. The shipborne distributed optoelectronic image display system according to claim 8, characterized in that, The extension (5012a) of the lower folding plate (5012) is provided with a first limiting part (5012b), and the bottom end of the upper folding plate (5011) is provided with a second limiting part (5011a) that is adapted to the first limiting part (5012b); when the table board (501) is in the first limit position or the second limit position, the first limiting part (5012b) and the second limiting part (5011a) are nested together.
10. The shipborne distributed optoelectronic image display system according to claim 7, characterized in that, The locking mechanism (503) includes a butterfly bolt, the stud of which is threadedly connected to the cabinet (101); when in the locked state, the locking part of the butterfly bolt engages with the upper end of the tabletop (501).