Projection fusion display system based on network

Abstract

The invention discloses a network-based projection fusion display system, which comprises a server side, a switch and at least one projection side, and is characterized in that the server side is connected with the projection side through the switch; the server side obtains the data source, analyzes multimedia information of the data source and equipment parameters of the projection side, corrects and adjusts the multimedia information according to the equipment parameters of the projection side, performs image splicing and edge fusion, generates to-be-projected content, and transmits the to-be-projected content to the projection side through the switch; the projection end obtains the content to be projected and the network condition connected with the switch, corrects and adjusts the content to be projected again according to the equipment parameters of the projection end, analyzes the network condition, compresses the content to be projected when the network condition is poor, obtains time and space information in real time, and sends the time and space information to the server; and synchronizing the display state of each projection end according to the synchronizing signal. According to the invention, multi-space, oversized and multi-scene spliced video dynamic display is realized.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a network-based projection fusion display system. Background Art

[0002] The existing large-size projection display fusion solutions in the industry are all based on HDMI display systems. All video data and fusion control need to be completed on the video fusion server side and then directly transmitted to the projection display through the HDMI interface. With the increasing demand for large-screen displays in home and commercial use, large-screen displays will expand the display area and increase the resolution of a single projector. However, the distance between the video fusion server and the projector exceeds the length limit of the HDMI cable. The current display system based on HDMI cables can no longer meet the functional requirements. Therefore, it is of great significance to develop a projection fusion display system that can effectively solve these problems. Summary of the invention

[0003] The purpose of the present invention is to provide a network-based projection fusion display system.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A network-based projection fusion display system comprises a server end, a switch and at least one projection end, wherein the server end is connected to the projection end via the switch;

[0006] The server side obtains the data source, analyzes the multimedia information of the data source and the device parameters of the projection side, corrects and adjusts the multimedia information according to the device parameters of the projection side, performs image stitching and edge fusion, generates content to be projected, and transmits it to the projection side through the switch;

[0007] The switch is used to connect the server end and the projection end through a network connection;

[0008] The projection end obtains the content to be projected and the network status connected to the switch, re-calibrates and adjusts the content to be projected according to the device parameters of the projection end, analyzes the network status, compresses the content to be projected when the network status is not good, obtains time and space information in real time, and synchronizes the display status of each projection end according to the synchronization signal.

[0009] Further, the server side includes a first content module, a first fusion module and a first synchronization module;

[0010] The first content module is used to obtain a data source, analyze multimedia information of the data source and device parameters of the projection end, connect to the switch for data transmission, and transmit the generated content to be projected to the projection end;

[0011] The first fusion module corrects and adjusts the multimedia information according to the device parameters of the projection end, performs geometric correction on the image of each projection end, the correction content includes the position and size, and saves the correction parameters in the corresponding projection end, and performs image splicing and edge fusion processing on the corrected image according to the position and size of the projection of the projection end, eliminates the transition edges between the images, obtains a continuous picture, and finally generates the content to be projected, and transmits it to the first content module;

[0012] The first synchronization module is used to obtain time and space information in real time, generate a synchronization signal, and transmit the synchronization signal to the projection end through the switch.

[0013] Furthermore, the first fusion module also includes acquiring color data of each projection end and analyzing color parameters of the image, and sending color adjustment instructions to each projection end according to preset color correction parameters or real-time monitored color information to reduce color differences between each projection end.

[0014] Further, the projection end includes a second content module, a second fusion module and a second synchronization module;

[0015] The second content module is used to obtain the content to be projected through the switch, adapt and adjust the parameters of the content to be projected according to the device parameters of the projection end, and analyze the network status connected to the switch to determine whether the bandwidth of the current switch network transmission is normal. When the bandwidth is low, it means that the network status is not good, and the content to be projected is compressed;

[0016] The second fusion module connects and obtains the content to be projected of the second content module, optimizes the picture fusion effect again, and calibrates and adjusts the picture parameters again according to the device parameters of the projection end;

[0017] The second synchronization module is used to obtain time and space information in real time, transmit synchronization signals with the first synchronization module through the switch, and adjust the time rhythm of the projection end display according to the synchronization signal. The pictures of each projection end are kept consistent in display time to achieve synchronous display.

[0018] Furthermore, when the projection end receives a power on / off control signal, the projector performs a corresponding power on or power off action. When powered on, the light data around the projection end is sensed by a photosensitive sensor, and the brightness and contrast parameters of the picture are adjusted according to the light data.

[0019] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0020] The present invention replaces the traditional HDMI cable transmission mode with a switch to meet the use requirements of multiple environments, avoids the defects of HDMI cables, and can be flexibly deployed and adjusted. Whether it is a new projection display system or an upgrade of an existing system, the installation cost and time cost can be significantly reduced. The server end and the projection end respectively optimize the content, thereby improving the user's visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a system structure diagram of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Example

[0025] refer to Figure 1 As shown, the present invention discloses a network-based projection fusion display system, including a server end, a switch and at least one projection end, wherein the server end is connected to the projection end through the switch;

[0026] The server side obtains the data source, analyzes the multimedia information of the data source and the device parameters of the projection side, corrects and adjusts the multimedia information according to the device parameters of the projection side, performs image stitching and edge fusion, generates content to be projected, and transmits it to the projection side through the switch;

[0027] The switch is used to connect the server end and the projection end through a network connection; to achieve efficient transmission and exchange of data, and to ensure the smoothness of data communication of the entire system.

[0028] The projection end obtains the content to be projected and the network status connected to the switch, re-calibrates and adjusts the content to be projected according to the device parameters of the projection end, analyzes the network status, compresses the content to be projected when the network status is not good, obtains time and space information in real time, and synchronizes the display status of each projection end according to the synchronization signal.

[0029] Implementation of the network connection module: Select appropriate network equipment, such as Ethernet switches or wireless routers, according to the actual use environment. For wired connections, ensure that the quality and length of the network cable meet the data transmission requirements; for wireless connections, set the appropriate Wi-Fi frequency band and encryption method to ensure the stability and security of communication.

[0030] This embodiment uses a high-performance signal processing chip to support the input and conversion of multiple video signal formats. In terms of resolution adjustment, adaptive adjustment is performed according to the inherent resolution of the projector to ensure that the image quality is not lost.

[0031] The server side includes a first content module, a first fusion module and a first synchronization module;

[0032] The first content module is used to obtain a data source, analyze the multimedia information of the data source and the device parameters of the projection end, connect to the switch for data transmission, and transmit the generated content to be projected to the projection end; it is responsible for providing content to be projected, such as videos, images and other multimedia information.

[0033] The first fusion module corrects and adjusts the multimedia information according to the device parameters of the projection end, performs geometric correction on the image of each projection end, the correction content includes the position and size, and saves the correction parameters in the corresponding projection end. According to the position and size of the projection of the projection end, the corrected image is stitched and edge-fused to eliminate the transition edges between images to obtain a continuous picture, and finally generates the content to be projected and transmits it to the first content module; this module mainly performs fusion operations on content from different data sources or that needs to be fused to ensure the integrity and consistency of the picture in the case of multiple projections.

[0034] The first synchronization module is used to obtain time and space information in real time, generate synchronization signals, and transmit the synchronization signals to the projection end through the switch, and to control the synchronization between the server end and the projection end, so as to ensure the coordinated work of each projection screen in time and space.

[0035] The first fusion module also includes acquiring color data of each projection end and analyzing color parameters of the image, and sending color adjustment instructions to each projection end according to preset color correction parameters or real-time monitored color information to reduce color differences between each projection end.

[0036] The projection end includes a second content module, a second fusion module and a second synchronization module;

[0037] The second content module is used to obtain the content to be projected through the switch, adapt and adjust the parameters of the content to be projected according to the device parameters of the projection end, and analyze the network status connected to the switch to determine whether the bandwidth of the current switch network transmission is normal. When the bandwidth is low, it means that the network status is not good, and the content to be projected is compressed; receive content information from the server or locally, and perform corresponding processing for projection display.

[0038] The second fusion module connects and obtains the content to be projected of the second content module, optimizes the picture fusion effect again, and re-calibrates and adjusts the parameters of the picture according to the device parameters of the projection end; further integrates and optimizes the received content at the projection end to adapt to the characteristics and display requirements of the local projection device.

[0039] The second synchronization module is used to obtain time and space information in real time, transmit synchronization signals with the first synchronization module through the switch, and adjust the time rhythm of the projection end display according to the synchronization signal, so that the images of each projection end are consistent in display time to achieve synchronous display. The first synchronization module and the second synchronization module ensure accurate synchronization between the projection end and the server end and other projection ends to avoid screen tearing, freeze and other phenomena.

[0040] This embodiment develops an efficient fusion algorithm, which can adopt an algorithm based on geometric correction and color correction. By accurately calculating the overlapping area and geometric relationship between the projectors, the image is deformed and fused. At the same time, the algorithm is continuously optimized to improve the processing speed and reduce delays. Advanced algorithms are used to perform precise calculations in combination with parameters such as the position and angle of the projector. The video signal can be accurately segmented, deformed and fused to ensure smooth transition and seamless connection of the image in the splicing area. Whether it is displaying high-definition video, complex graphics or large splicing images, highly consistent color, brightness and contrast can be presented, avoiding the common problems of obvious splicing seams and image deformation in traditional splicing methods, providing users with a high-quality visual experience. For example, in immersive projection display scenes, such as virtual exhibition halls, digital cinemas, etc., the audience can enjoy a complete and realistic large-screen display effect, as if they were there.

[0041] In this embodiment, a remote control module can be set at the projection end to adapt to the control interface of the projector to realize remote control of the projector. The power on / off, brightness, contrast and other parameters of the projector can be controlled, and the position and size of the projected image can be adjusted according to the results of the fusion algorithm.

[0042] The parameter adjustment of this embodiment includes but is not limited to resolution, contrast, brightness, color, position, size and angle.

[0043] When the projection end receives the power on / off control signal, the projector performs the corresponding power on or off action. When powered on, the light data around the projection end is sensed by the photosensitive sensor, and the brightness and contrast parameters of the picture are adjusted according to the light data.

[0044] This embodiment replaces the traditional HDMI cable transmission mode with a switch to meet the use requirements of multiple environments, avoid the defects of HDMI cables, and can be flexibly deployed and adjusted. Whether it is a new projection display system or an upgrade of an existing system, it can significantly reduce installation costs and time costs. The server side and the projection side optimize the content respectively, thereby improving the user's visual experience.

[0045] This embodiment is based on network connection, getting rid of the traditional complex hardware splicing controller and a large number of cable connection methods. Through network communication, the data transmission between each projector and the central control unit is efficient and stable, which greatly simplifies the installation process. Whether it is a new projection display system or an upgrade of an existing system, the installation cost and time cost can be significantly reduced. For example, in the construction of a projection display system in a large conference room or exhibition hall, there is no need for complex wiring projects. The connection of multiple projectors can be achieved only through network configuration, which improves deployment efficiency. Moreover, when it is necessary to adjust the projection layout or display content, only simple parameter settings or signal switching are required in the central control unit to quickly adapt to different usage requirements, which is extremely flexible.

[0046] Since the system architecture is relatively simple, the number and complexity of hardware devices are reduced, and the probability of hardware failure is reduced. In addition, the network-based management method makes system maintenance more convenient. The central control unit can remotely monitor the working status of each projector and promptly detect and diagnose problems. When a fault occurs, the fault point can be quickly located and repaired, reducing the on-site operation time and workload of maintenance personnel. For example, in the advertising projection display system of a large shopping mall, maintenance personnel can remotely monitor and maintain multiple projectors in the control center, improving maintenance efficiency and reducing maintenance costs.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A network-based projection fusion display system, characterized in that: It includes a server end, a switch and at least one projection end, wherein the server end is connected to the projection end through the switch; The server side obtains the data source, analyzes the multimedia information of the data source and the device parameters of the projection side, corrects and adjusts the multimedia information according to the device parameters of the projection side, performs image stitching and edge fusion, generates content to be projected, and transmits it to the projection side through the switch; The switch is used to connect the server end and the projection end through a network connection; The projection end obtains the content to be projected and the network status connected to the switch, re-calibrates and adjusts the content to be projected according to the device parameters of the projection end, analyzes the network status, compresses the content to be projected when the network status is not good, obtains time and space information in real time, and synchronizes the display status of each projection end according to the synchronization signal.

2. A network-based projection fusion display system according to claim 1, characterized in that: The server side includes a first content module, a first fusion module and a first synchronization module; The first content module is used to obtain a data source, analyze multimedia information of the data source and device parameters of the projection end, connect to the switch for data transmission, and transmit the generated content to be projected to the projection end; The first fusion module corrects and adjusts the multimedia information according to the device parameters of the projection end, performs geometric correction on the image of each projection end, the correction content includes the position and size, and saves the correction parameters in the corresponding projection end, and performs image splicing and edge fusion processing on the corrected image according to the position and size of the projection of the projection end, eliminates the transition edges between the images, obtains a continuous picture, and finally generates the content to be projected, and transmits it to the first content module; The first synchronization module is used to obtain time and space information in real time, generate a synchronization signal, and transmit the synchronization signal to the projection end through the switch.

3. A network-based projection fusion display system as claimed in claim 2, characterized in that: The first fusion module also includes acquiring color data of each projection end and analyzing color parameters of the image, and sending color adjustment instructions to each projection end according to preset color correction parameters or real-time monitored color information to reduce color differences between each projection end.

4. A network-based projection fusion display system as claimed in claim 3, characterized in that: The projection end includes a second content module, a second fusion module and a second synchronization module; The second content module is used to obtain the content to be projected through the switch, adapt and adjust the parameters of the content to be projected according to the device parameters of the projection end, and analyze the network status connected to the switch to determine whether the bandwidth of the current switch network transmission is normal. When the bandwidth is low, it means that the network status is not good, and the content to be projected is compressed; The second fusion module connects and obtains the content to be projected of the second content module, optimizes the picture fusion effect again, and calibrates and adjusts the picture parameters again according to the device parameters of the projection end; The second synchronization module is used to obtain time and space information in real time, transmit synchronization signals with the first synchronization module through the switch, and adjust the time rhythm of the projection end display according to the synchronization signal. The pictures of each projection end are kept consistent in display time to achieve synchronous display.

5. A network-based projection fusion display system as claimed in claim 4, characterized in that: When the projection end receives the power on / off control signal, the projector performs the corresponding power on or off action. When powered on, the light data around the projection end is sensed by the photosensitive sensor, and the brightness and contrast parameters of the picture are adjusted according to the light data.

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