Large-view-field back-projection dome-screen visual display system

Abstract

The utility model provides a large-field-of-view back-projection dome-screen visual display system comprising a gantry support used for erecting a plurality of projectors; the rear projection screen assembly is used for receiving a projection image of the projector; wherein the top surface of the rear projection screen assembly is of a spherical structure, and the interior of the rear projection screen assembly is used for placing simulator cabin equipment. According to the utility model, in the simulated flight process of a pilot, the rear projection screen is used for constructing a simulated flight scene, so that the picture is relatively strong in sense of wholeness, not easy to be influenced by ambient light, capable of correctly reflecting information quality, gorgeous in color and vivid in image. The simulated flight environment is constructed through the rear projection screen assembly of the spherical structure, simulated flight training is carried out in combination with the simulator cabin system, the real reduction degree of the simulated flight environment is more vivid, and the simulated flight training effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a projection screen technical field, especially a large field of view back projection ball screen visual display system. BACKGROUND

[0002] In the simulation flight training, need to utilize the screen to simulate the flight environment, the currently commonly used flight environment simulation system is the front projection screen system, in the system, the front projection screen is not limited by size, but will be affected by ambient light and cause the serious decline of picture contrast, the front projection screen gain is small, and the ambient light must be weak.

[0003] In the pilot training process, the currently commonly used mode is to realize the purpose of simulation flight training through the front projection mode of half-arc structure, the existing projection system for simulation flight training is half-arc structure, in the actual simulation flight process, different flight postures are adjusted, and the authenticity or simulation restoration degree is low, therefore, a visual display system capable of improving the simulation flight restoration degree during simulation training is lacked. UTILITY MODEL CONTENT

[0004] The utility model provides a large field of view back projection ball screen visual display system to realize better reference information on vision during the simulation flight of the pilot, and the real restoration degree of the simulation flight scene is higher, the back projection screen is used to construct the simulation flight scene, the whole picture is strong, is not easily affected by ambient light, and can correctly reflect information quality, so the picture is compared with the front projection system, color is bright, and the image is lifelike. The back projection mode overcomes the shortcomings of the front projection mode and has the following technical advantages: the projector is installed in the dark room behind the screen, does not cause the disorder of decoration, shields the noise generated during the operation of the projector, is not easily disturbed by ambient light, etc. In addition, the back projection mode does not need to consider the light path shielding factor of the ball screen in the front projection mode, and the utilization rate of the projector is higher than that of the front projection mode, the simulation flight environment is constructed through the back projection screen assembly of spherical structure, the simulation flight training is carried out in combination with the simulator cabin system, the real restoration degree of the simulation flight environment is more lifelike, and the training effect of the simulation flight is better.

[0005] The utility model provides a kind of large field of view back projection ball screen visual display system, comprising: gantry support, for erecting multiple projectors;

[0006] Back projection screen assembly is used to receive the projection image of projector;Wherein, the top surface of the back projection screen assembly is spherical structure, and the inside of the back projection screen assembly is used to place simulator cabin equipment.

[0007] Preferably, the portal frame provided with the entrance comprises: a plurality of main support beams arranged at intervals, the lower part of each main support beam is connected in sequence by a bottom connecting beam, and the upper part of each main support beam is connected in sequence by a connecting bridge; a platform connecting beam is arranged on each of the two main support beams close to the entrance; a projector is arranged on each of the connecting bridge and the platform connecting beam.

[0008] Preferably, the two main support beams close to the entrance are arranged oppositely and are not connected by the bottom connecting beam or the connecting bridge.

[0009] Preferably, the projector support is used for erecting the projector and is provided with a plurality of projectors.

[0010] Preferably, the projector support comprises: a projector adjusting support, a projector fixing support and a projector seat.

[0011] The projector adjusting support is arranged on the platform connecting beam and the connecting bridge.

[0012] The projector fixing support is arranged on one side of the top connecting beam.

[0013] The projector seat is arranged at the two ends of the portal frame entrance and below the connecting bridge.

[0014] Preferably, the projector adjusting support comprises a fixing frame and an adjusting seat, the fixing frame is used for mounting the projector, and the adjusting seat is mounted on one side of the platform connecting beam or the connecting bridge and is adjustably connected to the fixing frame on the other side.

[0015] Preferably, the projector mounted on the projector adjusting support is arranged at an inclined angle.

[0016] The projector mounted on the projector fixing support is arranged vertically downward.

[0017] The projector mounted on the projector seat is arranged horizontally.

[0018] The projection direction of each projector is towards the back projection screen assembly.

[0019] Preferably, a plurality of projectors form a back projection group and are used for projecting the back projection screen assembly of the spherical structure, comprising:

[0020] The first projector group is arranged at an inclined angle.

[0021] The second projector group is arranged vertically downward.

[0022] The third projector group is arranged horizontally.

[0023] Preferably, the back projection curtain assembly comprises a tray, a spherical back projection curtain is arranged above the tray, and a caster is arranged below the tray in a spaced manner; an opening is arranged on the side of the back projection curtain close to the entrance;

[0024] The opening and the entrance of the portal frame are corresponding to each other, and are used for the simulator cabin to enter the back projection curtain assembly from the entrance and the opening;

[0025] The tray is in a circular ring structure, a section is arranged on the circular ring structure, the section and the opening of the back projection curtain are corresponding to each other, a frame body one is arranged below the section, a supporting frame is arranged on the inner wall of the tray, and the supporting frame is arranged opposite to the section.

[0026] Preferably, the caster comprises a mounting plate, one side of the mounting plate is arranged below the tray, and the other side of the mounting plate is provided with a wheel frame, and a roller is arranged on the wheel frame.

[0027] Preferably, the platform connecting beam and the connecting bridge are in communication with each other, and guardrails are arranged on both sides.

[0028] Preferably, the back projection curtain assembly enters the inside of the portal frame through the caster from the entrance of the portal frame, and is used for receiving the back projection of the projector.

[0029] The working principle and beneficial effects of the back projection curtain assembly are as follows:

[0030] The utility model provides a kind of large field-of-view back projection spherical screen visual display system, comprising: portal frame, for erecting multiple projectors;Back projection curtain assembly, for receiving the projection image of projector;Wherein, the top surface of the back projection curtain assembly is spherical structure, and the inside of the back projection curtain assembly is used to place simulator cabin equipment.The utility model is by setting back projection curtain assembly below portal frame, to erect projector on portal frame, to form annular structure back projection scheme, when using, the scene construction of analog flight training is carried out using back projection mode, greatly improve the reality of analog flight training environment.In the utility model, projector support is installed on portal frame, projector is installed on projector support, and portal frame bottom is fixed on ground using expansion screw to guarantee support stability.Spherical back projection curtain assembly is placed simulator cabin equipment inside.The visual display system can project and display the real world outside scene image generated by simulator visual computer, to build a simulated flight environment, so that pilot obtains visual reference information in training process, to reach immersive effect.

[0031] Other features and advantages of the utility model will be described in the subsequent specification, and, part becomes apparent from the specification, or is understood by implementing the utility model.The purpose and other advantages of the utility model can be realized and obtained by the structure specially pointed out in the written specification and drawings.

[0032] The technical scheme of the utility model is further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation on the utility model.In the drawings:

[0034] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0035] Figure 2 It is another three-dimensional structure schematic view of the utility model;

[0036] Figure 3 It is the gantry support structure schematic view of the utility model;

[0037] Figure 4 It is the projector support structure schematic view of the utility model;

[0038] Figure 5 It is the rear projection screen assembly structure schematic view of the utility model;

[0039] Figure 6 It is the tray structure schematic view of the utility model;

[0040] Figure 7 It is the frame body one structure schematic view of the utility model;

[0041] Figure 8 It is the trundle structure schematic view of the utility model;

[0042] Among them, 100-gantry support, 101-main support beam, 102-bottom connecting beam, 103-platform connecting beam, 104-top connecting beam one, 105-guardrail, 106-connection bridge,

[0043] 200-projector support, 201-projector adjusting support, 202-projector fixed support, 203-projector seat,

[0044] 300-rear projection screen assembly, 301-rear projection screen, 302-tray, 303-trundle, 304-projector, 305-opening, 306-frame body one, 307-section, 308-support frame, 3031-roller, 3032-mounting plate, 3033-wheel frame. DETAILED DESCRIPTION

[0045] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used to explain and illustrate the utility model, and are not used to limit the utility model.

[0046] According to Figures 1-8 The utility model provides a big visual field back projection ball screen visual display system, aim at: in order to realize in the process that the pilot carries out simulation flight, better obtains the reference information on vision, makes the real restoration degree of simulation flight scene higher.

[0047] The core technical scheme of the utility model is: use back projection screen to construct simulation flight scene, makes the whole picture sense stronger, is not easily influenced by ambient light, can correctly reflect information quality, so the picture is compared with orthographic system, its color is gorgeous, the image is lifelike.

[0048] Further, the back projection method overcomes the shortcomings of the orthographic method, and has the following technical advantages: the projector is installed in a dark room behind the screen, does not cause disorder to decoration, shields the noise generated by the operation of the projector, and is not easily disturbed by ambient light. In addition, the back projection method does not need to consider the light path blocking factor of the ball screen inside the flight simulation cabin in the orthographic method, and the utilization rate of the projector in the back projection method is higher than that in the orthographic method. The simulation flight environment is constructed by the back projection screen assembly 300 with a spherical structure, and the simulation flight training is carried out in combination with the simulator cabin system, so that the real restoration degree of the simulation flight environment is more realistic, and the training effect of the simulation flight is better.

[0049] For this purpose, the utility model designs the following technical scheme: according to Figures 1-8 As shown in FIG. 1, the utility model provides a big visual field back projection ball screen visual display system, which comprises: a gantry support 100 for erecting a plurality of projectors 304;

[0050] A back projection screen assembly 300 is used to receive the projection image of the projector 304. The top surface of the back projection screen assembly 300 is a spherical structure, and the inside of the back projection screen assembly 300 is used to place simulator cabin equipment.

[0051] In the scheme, the back projection scheme of the ring structure is formed by setting the back projection curtain assembly 300 below the gantry support 100 and erecting the projector 304 on the gantry support 100, so that the scene construction of the simulation flight training is carried out by using the back projection mode, and the reality of the simulation flight training environment is greatly improved. In the utility model, the projector support 200 is installed on the gantry support 100, the projector 304 is installed on the projector support 200, and the expansion screw is used to fix the bottom of the gantry to the ground to ensure the stability of the support. The simulator cabin equipment is placed in the spherical back projection curtain assembly 300. The visual display system can project and display the outside scene image of the real world cabin generated by the simulator visual computer, so as to build a simulation flight environment, so that the pilot obtains the visual reference information in the training process, and the immersive effect is achieved. The visual image design and construction technology is prior art, and does not belong to the protection scope of the utility model, and the detailed working principle of the technology is not repeated here.

[0052] The utility model at least has following beneficial effects:

[0053] 1、The big field of view back projection spherical screen visual display system can display the outside scene image of the real world cabin generated by the simulator graphic workstation, so that the pilot obtains the visual reference information in the training process, and the immersive effect is achieved, and strong immersion is brought to the driver, and the system structure is simple, and the field of view is big.

[0054] 2、The big field of view back projection spherical screen visual display system is the beneficial supplement of the orthographic projection spherical screen visual display system, and the back projection mode has the advantages of simple light path design, better picture quality and high utilization rate of the projector compared with the orthographic projection mode.

[0055] In one embodiment, the gantry support 100 provided with the entrance comprises: a plurality of main support beams 101 are arranged at intervals, the lower portions of the main support beams 101 are sequentially connected by bottom connecting beams 102, and the upper portions of the main support beams 101 are sequentially connected by connecting bridges 106; platform connecting beams 103 are respectively arranged on the two main support beams 101 close to the entrance; and projectors 304 are respectively arranged on the connecting bridges 106 and the platform connecting beams 103.

[0056] Preferably, the two main support beams 101 close to the entrance are oppositely arranged and are not connected to the bottom connecting beams 102 and the connecting bridges 106. The platform connecting beams 103 and the connecting bridges 106 are in communication with each other and are both provided with guardrails 105. The guardrails 105 are used to ensure the safety of the maintenance and debugging personnel.

[0057] The scheme, gantry support 100 by a plurality of interval main support beam 101 constitute, main support beam 101 below by the bottom connecting beam 102 connection, the upper part is equipped with connecting bridge 106, its overall form an arc or U-shaped semi-open area, the center of the area for placing the back projection curtain assembly 300, the open mouth of the area for personnel access, or the back projection curtain assembly 300 access, the cockpit of the simulation flight access.

[0058] Main support beam 101 is provided with at least 4 groups, platform connecting beam 103 is provided with at least 2 groups, top connecting beam 104 is provided with at least 2 groups, connecting bridge 106 is provided with at least 2 groups; Main support beam 101, bottom connecting beam 102, platform connecting beam 103, top connecting beam 104, guardrail 105, connecting bridge 106 are made of steel structure welding, main support beam 101, bottom connecting beam 102, platform connecting beam 103, top connecting beam 104 are truss structure, main support beam 101, bottom connecting beam 102, platform connecting beam 103, top connecting beam 104, guardrail 105, connecting bridge 106 are connected by high-strength bolts to form a gantry support 100 with an entrance. The bottom of the gantry is fixed to the ground by expansion screws to ensure the stability of the support. The simulator cockpit equipment is placed inside the spherical back projection curtain assembly.

[0059] In one embodiment, the projector support 200 is used to erect the projector 304, which is provided with a plurality of.

[0060] The projection support comprises a projector adjusting support 201, a projector fixing support 202 and a projector seat 203.

[0061] The projector adjusting support 201 is located on the platform connecting beam 103 and the connecting bridge 106.

[0062] The projector fixing support 202 is located on one side of the top connecting beam 104.

[0063] The projector seat 203 is located at both ends of the entrance of the gantry support 100 and below the connecting bridge 106.

[0064] Preferably, the projector adjusting support 201 comprises a fixing frame and an adjusting seat, the fixing frame is used to install the projector 304, one side of the adjusting seat is installed on the platform connecting beam 103 or the connecting bridge 106, and the other side is adjustably connected to the fixing frame.

[0065] Preferably, the projector 304 installed on the projector adjusting support 201 is inclined.

[0066] The projector 304 installed on the projector fixing support 202 is vertically downward.

[0067] The projection angle of the projector 304 installed on the projector seat 203 is horizontally arranged;

[0068] The projection direction of each projector 304 is towards the back projection screen assembly 300.

[0069] The plurality of projectors 304 form a back projection screen assembly 300 for projecting the spherical structure, comprising:

[0070] The first group of projectors 304 has an inclined projection angle;

[0071] The second group of projectors 304 has a vertical downward projection angle;

[0072] The third group of projectors 304 has a horizontal projection angle.

[0073] In this embodiment, the projector adjusting bracket 201 is used for angle adjustment of the projector 304 and is installed in the second projection layer; the projector fixing bracket 202 is used for installation of the projector 304 which does not need to be adjusted in angle but projects downward from the top and is located in the first projection layer; the projector seat 203 is separately placed on the ground and is uniformly distributed under the gantry and is used for installation of the projector 304 which does not need to be adjusted in angle but projects horizontally. The spherical back projection screen assembly 300 is projected by the three different projection layers to achieve the purpose of 360-degree panoramic projection, and the spherical screen of the spherical back projection screen assembly 300 can be more restored to simulate the reality of flight. The projector adjusting bracket 201 is provided with five, the projector fixing bracket 202 is provided with one, and the projector seat 203 is provided with five; together forming a three-dimensional structure group for installing the projector 304, thereby forming a three-dimensional projection array and projecting the back projection screen assembly 300. The structure of the projector bracket 200 is made of steel structure welding, and the high-strength bolts are used to connect the structure parts. The projector adjusting bracket is located on the maintenance platform connecting beam in the middle of the gantry bracket, and the bracket can be adjusted up and down and left and right to meet different projection requirements.

[0074] In one embodiment, the back projection screen assembly 300 comprises a tray 302, the upper part of the tray 302 is provided with a spherical back projection screen 301, and the lower part is provided with casters 303; the opening 305 is arranged on the side of the back projection screen 301 close to the entrance;

[0075] The opening 305 and the entrance of the gantry bracket 100 correspond to each other, and are used for the simulator cabin to enter the back projection screen assembly 300 from the entrance and the opening 305;

[0076] The tray 302 is a circular ring structure, and a cut surface 307 is arranged on the circular ring structure, the cut surface 307 and the opening 305 of the back projection screen 301 correspond to each other, and a frame body one 306 is arranged below the cut surface 307, a supporting frame 308 is arranged on the inner wall of the tray 302, and the supporting frame 308 is arranged opposite to the cut surface 307.

[0077] Preferably, the casters 303 include a mounting plate 3032 arranged on one side below the tray 302 and arranged on the other side with a wheel frame 3033, and a roller 3031 is arranged on the wheel frame 3033.

[0078] Preferably, the back projection screen assembly 300 enters the inside of the gantry support 100 through the casters 303 from the entrance of the gantry support 100, and is used for receiving the back projection of the projector 304.

[0079] In the embodiment, the back projection screen 301 is a spherical structure and is made of an optical resin material, and is bonded with the tray 302 by using the resin material. The casters 303 are at least evenly arranged in eight groups and are arranged on the bottom surface of the tray 302, so that the tray 302 is freely adjusted or transferred to a working position through the casters 303.

[0080] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A large field-of-view rear projection dome display system, characterized in that, include: Gantry bracket, used to mount multiple projectors; A rear projection screen assembly is used to receive projected images from a projector; wherein, the top surface of the rear projection screen assembly is a spherical structure, and the interior of the rear projection screen assembly is used to house simulator cockpit equipment; The gantry support with an entrance includes: multiple main support beams spaced apart, with each main support beam connected sequentially below by a bottom connecting beam and connected sequentially above by a connecting bridge; platform connecting beams are respectively provided on the two main support beams near the entrance; projectors are respectively provided on the connecting bridge and the platform connecting beams.

2. The large field-of-view rear projection dome display system as described in claim 1, characterized in that, The two main support beams near the entrance are positioned opposite each other and are not connected to the bottom connecting beam or the connecting bridge.

3. The large field-of-view rear projection dome display system as described in claim 1, characterized in that, Projector stands are used to mount projectors, and multiple stands are available.

4. The large field-of-view rear projection dome display system as described in claim 3, characterized in that, The projector bracket includes: a projector adjustment bracket, a projector fixing bracket, and a projector base; Projector adjustment bracket, located on the platform connecting beam and connecting bridge; The projector mounting bracket is located on one side of the top connecting beam; The projector mounts are located at both ends of the gantry bracket inlet and below the connecting bridge.

5. A large field-of-view rear projection dome display system as described in claim 4, characterized in that, The projector adjustment bracket includes a fixed frame and an adjustment seat. The fixed frame is used to install the projector. One side of the adjustment seat is installed on the platform connecting beam or connecting bridge, and the other side can be adjusted to connect to the fixed frame.

6. The large field-of-view rear projection dome display system as described in claim 4, characterized in that, The projection angle of the projector mounted on the projector adjustment bracket is set at an angle. The projection angle of the projector mounted on the projector mounting bracket is set vertically downward. The projector mounted on the projector stand has its projection angle set horizontally. The projection direction of each projector is towards the rear projection screen assembly.

7. The large field-of-view rear projection dome display system as described in claim 1, characterized in that, Multiple projectors form a rear projection group and are used to project onto a spherical rear projection screen assembly, including: The first projector group has a tilted projection angle. The second projector group has its projection angle set vertically downwards; The third projector group has a horizontal projection angle.

8. A large field-of-view rear projection dome display system as described in claim 1, characterized in that, The rear projection screen assembly includes a tray, with a spherical rear projection screen on top of the tray and casters spaced apart below; the rear projection screen has an opening on the side near the entrance. The opening and the gantry bracket's entrance correspond to each other and are used for the simulator cockpit to enter the rear projection screen assembly from the entrance and opening; The tray has a circular ring structure with a cut surface. The cut surface and the opening of the rear projection screen correspond to each other. A frame is provided below the cut surface, and a support frame is provided on the inner wall of the tray. The support frame is arranged opposite to the cut surface.

9. A large field-of-view rear projection dome display system as described in claim 8, characterized in that, The casters include a mounting plate, one side of which is attached to the bottom of the tray, and the other side is fitted with a wheel frame with rollers.

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