CN207115009U - A bowl-shaped spherical screen projection system - Google Patents

Abstract

The utility model discloses a bowl-shaped spherical screen projection system, which comprises a projection display subsystem and a network control subsystem; the projection display subsystem comprises a bowl-shaped screen, a projection channel, a server and a network switch; the projection channel comprises a projector, an image fusion machine and a graphic workstation; the network control subsystem comprises a management computer, an operation control device, a central control host and a sub-control module; hardware equipment in the two sub-systems are interconnected through a signal cable to form a physical operation platform of the whole system; the image fusion machine carries out fusion, correction and segmentation on the generated images and inputs the images to a plurality of projectors, and the images are projected on a bowl-shaped screen through the projectors. The utility model discloses can present a lifelike three-dimensional virtual scene of sense of high immersion for the user.

Description

A bowl-shaped spherical screen projection system

technical field

The utility model relates to the technical field of projection systems, in particular to a bowl-shaped spherical screen projection system.

Background technique

With the rapid development of computer technology, more and more types of multimedia are included, and more and more effects can be expressed. The more traditional ways of expression (such as static images and dynamic videos) are increasingly unable to meet the needs of the public. Display requirements. Static pictures can only provide an image of a certain angle of the scene. Even if a wide-angle lens is used when shooting, it is difficult to fully express the scene effectively and comprehensively; The viewing angle is still limited, and the way users watch depends on the way the photographer shoots, which is not free, and users cannot interact. When we need a real, comprehensive and intuitive representation of a certain scene, it cannot meet the requirements of wide vision, realism and high immersion in the picture, and cannot create an immersive effect.

Utility model content

In view of this, the utility model aims at the deficiencies of the existing technology, and its main purpose is to provide a bowl-shaped ball that can enable users to experience a wide and realistic, visually shocking, and immersive three-dimensional virtual scene. screen projection system.

In order to achieve the above object, the utility model adopts the following technical scheme: a bowl-shaped spherical screen projection system, including a projection display subsystem and a network control subsystem; the projection display subsystem includes a bowl-shaped screen, a projection channel, a server and Network switch; the projection channel includes a projector, an image fusion machine, and a graphics workstation; the network control subsystem includes a management computer, a control device, a central control host, and a sub-control module; the hardware devices in the two sub-systems are interconnected through signal cables The physical operating platform that constitutes the entire system.

As a preferred solution, the control device is one of a computer display screen or a wireless touch control screen.

As a preferred solution, the graphics workstation is provided with an image generator, an image processor, a data exchange and a sound processor.

As a preferred solution, the sub-control module includes a power switch control module, a device switch control module, and a signal switching module.

As a preferred solution, there are at least ten projection channels.

As a preferred solution, there are at least ten projectors, which are arranged in a two-layer structure, with at least five projectors on each floor.

As a preferred solution, the graphics workstation is composed of at least ten computers.

As a preferred solution, there are two image fusion machines.

As a preferred solution, the projection surface of the projection channel covers 50 degrees horizontally, and each adjacent projection surface forms a regular fusion area.

As a preferred solution, the bowl-shaped screen is bowl-shaped with a wide top and a narrow bottom, forming a 180-degree field of view.

Compared with the prior art, the utility model has obvious advantages and beneficial effects: the utility model uses a projection system composed of projectors in multiple projection channels and a large bowl-shaped screen, combines the visual engine technology and multi-projection fusion panoramic imaging Technology, using ball screen projection display technology, comprehensive application of virtual reality technology and related network, digital communication technology, computer multimedia technology and image processing technology to build a comprehensive virtual reality platform, has the following advantages and beneficial effects:

1. Achieve spherical multi-screen automatic fusion display, automatic image color correction, automatic edge fusion processing, distributed real-time rendering calculation, virtual reality spherical panoramic desktop system and demonstration application system, etc., which can meet the needs of ultra-high resolution and large screen High immersion display of spherical modeling image graphics (virtual reality 3D view, panoramic video display, etc.), providing users with an overall image with wide vision, realism, high immersion, seamless, continuous, uniform brightness, and uniform color. Make the visual display environment more immersive and visually impactful. It can strongly stimulate the user's senses such as vision, hearing, touch, and feeling, so that users can experience an immersive and highly immersive three-dimensional virtual scene.

2. Support video synchronous playback, the system supports multi-channel distributed video synchronous playback, forming a complete large screen; can provide interfaces, run customized virtual reality programs, the system needs to support various custom-developed software; have multi-channel distributed interaction The desktop system function supports the entire dome screen as a desktop application, supports dynamic scenes and dynamic background display, and needs to have the functions of real-time display of background pictures, screen saver video environment rendering, picture-in-picture slideshow presentation, and real-time text input display.

In order to more clearly illustrate the structural features, technical means and the specific purpose and functions achieved by the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic flow sheet of the utility model;

Fig. 2 is a top view schematic diagram of the screen structure and projection channel light path of the present invention;

Fig. 3 is a schematic side view of the screen structure and projection channel light path of the present invention.

Explanation of the accompanying drawings:

10. Projection display subsystem

11. Bowl-shaped screen

12. Projection channel

121. Projector

122. Image fusion machine

123. Graphics Workstation

123A. Image generator

123B, image processor

123C, data exchange

123D, sound processor

13. Server

14. Network switch

20. Network control subsystem

21. Manage computer

22. Control device

221. Computer Display

222. Wireless touch control screen

23. Central control host

24. Sub-control module

241. Power switch control module

242. Equipment switch control module

243. A signal switching module.

Detailed ways

Please refer to Figures 1 to 3, which show the specific structure of a preferred embodiment of the present invention, a bowl-shaped spherical screen projection system, including a projection display subsystem (10), a network control subsystem (20) ; The projection display subsystem (10) includes a bowl-shaped screen (11), a projection channel (12), a server (13) and a network switch (14); the projection channel (12) includes a projector (121), an image Fusion machine (122), graphics workstation (123); the network control subsystem (20) includes a management computer (21), a control device (22), a central control host (23), and a sub-control module (24); The hardware devices in the system are interconnected through signal cables to form the physical operating platform of the entire system.

The graphics workstation (123) is provided with an image generator (123A), an image processor (123B), a data exchange (123C) and a sound processor (123D).

Ten projectors (121) are installed in the center of the front projection screen, and are arranged in a two-layer structure, with five projectors (121) on each floor; a graphics workstation (123) composed of ten computers, two image The fusion machine (122) and ten projectors (121) form ten projection channels (12), the projection surface of each projection channel (12) covers 50 degrees horizontally, and each adjacent projection surface forms a regular fusion area, which facilitates the subsequent image stitching and edge blending, effectively reduces the workload of post-correction, and is conducive to producing better projection effects.

The image generator (123A) of the graphics workstation (123) generates the input image and stores the simulation data, and after rendering by the image processor (123B), it is sent to the image fusion machine (122), and the image fusion machine (122) will generate The images are fused, corrected and segmented and input to ten projectors (121), and projected by the projectors (121) on the bowl-shaped screen (11) with a wide top and a narrow bottom to form a 180-degree field of view; the sound processor (123D) receives the image The audio and video timeline generated by the generator (123A), all audio signals are processed and amplified by connecting to the power amplifier, and then output to the speakers, and the audio corresponding to the content of the virtual image is diffused and played through the speakers; there are 4 speakers in total, which are the left front speakers , the left rear speaker, the right front speaker, and the right rear speaker can better restore the sound and increase the stereo surround effect, and combine with the image of the bowl-shaped screen (11) on the large screen to enhance the audience's sense of presence under the simultaneous effects of vision and hearing , realism and high immersion.

The image fusion machine (122) uses a pre-distortion algorithm to correct the geometric distortion of the image projected on the bowl-shaped screen (11), and uses an edge fusion algorithm to eliminate the unevenness of luminosity and color in the overlapping area of adjacent projections. The overlapping parts of the screen are accurately fused with other parts, and the fused parts are naturally coordinated to completely integrate the entire screen.

The network control subsystem (20) includes a management computer (21), a control device (22), a central control host (23), and a sub-control module (24); the control device (22) is a computer display screen (221) or a wireless One of the touch control screens (222); the command execution core part of the entire central control host (23) control system is mainly composed of the control interface of the control device (22) and the logic language program. The control interface of the control device (22) accepts user operations and feedbacks the control state; the operation interface is divided into a computer software control interface and a tablet computer interface. The computer software control interface is configured on the management computer (21), and is connected and communicated with the central control host (23) through the IP network to control various devices; the central control host (23) is connected to the interface of the tablet computer through the IP network; The central control host (23) accepts the control instructions sent by the control interface, performs various logical operations, initializes ports, drives the corresponding sub-control module (24), or directly completes the control of the equipment.

The sub-control module (24) includes a power switch control module (241), an equipment switch control module (342), and a signal switching module (243); each sub-control module (24) is configured with a corresponding IP address; the sub-control module (24) Receive the instructions sent by the central control host (23), analyze and execute the instructions, and complete the control and operation of the corresponding equipment.

The network control subsystem (20) controls the power supply and switch control of the projector (121), image fusion machine (122), graphics workstation (123), server (13), network switch (14) of the control system; the ambient lighting of the hall The power supply and switch control of each device; the switch control of each device; control the DVI signal and HDMI signal switching of the projector (121), and at the same time, also realize the film selection and synchronous projection of each projection channel (12). The sub-system is easy to control and operate.

Example 1

First of all, check whether all devices are connected smoothly before starting the machine, including network connection, graphic image signal connection, power connection, mouse and keyboard control connection, and whether the power plug connectors of various devices are damaged or leaked, and ensure that there is no leakage in the power distribution box. The status of each switch has not changed.

Then, start the bowl-shaped spherical screen projection system on the desktop by the computer display screen 221 of the management computer 21, click "confirm" to enter, and enter the next control interface; after clicking the automatic opening button, the system automatically enters the opening program, and the system is first opened power supply, then turn on each device, and finally turn on the projector (121) to complete the opening of the entire system hardware device. After the complete splicing picture is displayed on the bowl-shaped screen (11), the content demonstration or broadcast can be started. Or for broadcasting needs, click the on button of the lighting control to turn on or off the ambient light.

Example 2

First of all, check whether all devices are connected smoothly before starting the machine, including network connection, graphic image signal connection, power connection, mouse and keyboard control connection, and whether the power plug connectors of various devices are damaged or leaked, and ensure that there is no leakage in the power distribution box. The status of each switch has not changed.

Then, start this bowl-shaped spherical screen projection system on the desktop by the computer display screen 221 of the management computer 21, click "confirm" to enter, and enter the next control interface; click to enter the manual opening mode interface, and under the manual opening mode, first open the system power supply, and then click to turn on the power of each device in order; after completing the power control, click the start switch button of each device in turn, and finally turn on the projector (121) to complete the opening of the entire system hardware device, and the bowl-shaped screen (11) displays After the spliced complete picture is produced, the content demonstration or broadcast can be started. According to the needs of the demonstration or broadcast, click the on button of the light control to turn on or off the ambient light.

Example 3

First confirm whether the wireless network setting of the wireless touch control panel 222 is correct, and whether it has been connected to the wireless network of the system. After the WIFI configuration is completed, click the system start button on the interface of the wireless touch control panel 222 to start the connecting control host (23), After the connection is completed, the control system enters the welcome interface. After the system hardware part completes the power-on operation of the projector, and the bowl-shaped screen (11) displays a complete spliced picture, then the wireless touch control panel 222 can be used to perform demonstration or broadcast control operations, or according to the demonstration or broadcast needs, Click the on button of the light control to turn on or off the ambient light.

The key point of the design of this utility model is: through the projection system composed of projectors in multiple projection channels and a large bowl-shaped screen, combined with the visual engine technology and multi-projection fusion panoramic imaging technology, and adopting the ball screen projection display technology, the comprehensive application of virtual Reality technology and related network, digital communication technology, computer multimedia technology and image processing technology are a comprehensive virtual reality platform. 1. It can achieve spherical multi-screen automatic fusion display, automatic image color correction, automatic edge Functions such as fusion processing, distributed real-time rendering calculation, virtual reality spherical panoramic desktop system and demonstration application system provide users with an overall image with wide vision, realism, high immersion, seamless, continuous, uniform brightness and uniform color, so that The sense of presence and visual impact of the visual display environment is more shocking; it can strongly stimulate the user's senses such as vision, hearing, touch, and feeling, so that the user can experience an immersive and highly immersive 3D virtual scene. 2. Support video synchronous playback, the system supports multi-channel distributed video synchronous playback, forming a complete large screen; can provide interfaces, run custom virtual reality programs, the system needs to support various custom-developed software; have multi-channel distributed interaction The desktop system function supports the entire dome screen as a desktop application, supports dynamic scenes and dynamic background display, and needs to have the functions of real-time display of background pictures, screen saver video environment rendering, picture-in-picture slideshow presentation, and real-time text input display.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model in any way, so any minor modifications, equivalent changes and changes made to the above embodiments according to the technical essence of the present utility model Modifications still belong to the scope of the technical solution of the utility model.

Claims (10)

1. A bowl-shaped spherical screen projection system, characterized in that: comprise a projection display subsystem, a network control subsystem; the projection display subsystem includes a bowl-shaped screen, a projection channel, a server and a network switch; the projection channel includes Projector, image fusion machine, graphics workstation; the network control subsystem includes a management computer, a control device, a central control host, and a sub-control module; the hardware devices in the two sub-systems are interconnected through signal cables to form the physical operating platform of the entire system. 2. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: the control device is one of a computer display screen or a wireless touch control screen. 3. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: said graphics workstation is provided with an image generator, an image processor, a data exchange and a sound processor. 4. A bowl-shaped spherical screen projection system according to claim 1, wherein the sub-control module includes a power switch control module, an equipment switch control module, and a signal switching module. 5. A bowl-shaped spherical screen projection system according to claim 1, characterized in that there are at least ten projection channels. 6. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: there are at least ten projectors arranged in a two-layer structure, with at least five projectors on each layer. 7. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: said graphics workstation is composed of at least ten computers. 8. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: there are two image fusion machines. 9. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: the projection surface of the projection channel covers 50 degrees horizontally, and each adjacent projection surface forms a regular fusion zone. 10. A bowl-shaped spherical screen projection system according to claim 1, characterized in that: the bowl-shaped screen is bowl-shaped with a wide top and a narrow bottom, forming a 180-degree field of view.