Multi-channel video acquisition and transmission system

Abstract

The utility model relates to a multi-channel video acquisition and transmission system, which comprises a video acquisition module interface, a video processing module and a central processing unit, the video processing module is connected with the central processing unit through a high-speed bus, and the central processing unit is connected with an optical fiber module; the video processing module converts videos and transmits the converted videos to the central processing unit through a high-speed bus, the central processing unit is connected with an internal memory and a memory so as to form a minimum operation system to decode and compress the videos, and the videos decoded by the central processing unit are converted into optical signals through the optical fiber module to be transmitted. According to the utility model, more paths of video acquisition signals can be simultaneously processed by using a high-speed bus, a memory is not used as a cache and a hard disk is not used for storing video data, and a video does not need to be decoded and compressed before transmission, so that the processing speed of the system can be greatly improved and the power consumption is reduced; and the optical fiber can realize faster and more stable data transmission.

Description

Technical Field

[0001] The utility model relates to the field of video acquisition and processing systems, in particular to a multi-channel video acquisition and transmission system. Background Art

[0002] As the country becomes stronger, foreign economic and military exchanges are increasing, and ships will pass through many unfamiliar waters. For the safety of ships, it is necessary to detect unfamiliar waters and understand key information such as the topography of the seabed, so as to draw maps of the corresponding sea areas to ensure the safe passage of ships; some cabins in the ship also require video surveillance to ensure the safety inside the ship.

[0003] The existing video acquisition system is processed by the PCI bus and then cached in the memory, and then processed by the CPU and stored on the hard disk. The real-time monitoring system will generate a large amount of high-definition video data. The bandwidth of the PCI bus cannot meet the needs of high-speed transmission of large amounts of data. After processing, the data is stored on the hard disk. The storage capacity of the hard disk will also limit the number and time of video monitoring, and it is not easy to maintain. The wireless transmission used is not suitable for ships sailing in the open sea. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention proposes a multi-channel video acquisition and transmission system.

[0005] The technical problem to be solved by the present invention is achieved by the following technical solutions:

[0006] A multi-channel video acquisition and transmission system includes a video acquisition module interface, a video processing module and a central processing unit, wherein the video processing module and the central processing unit are connected via a high-speed bus, and the central processing unit is connected to an optical fiber module;

[0007] The video processing module converts the video and transmits it to the central processing unit through a high-speed bus. The central processing unit is connected to memory and storage to form a minimum operating system to decode and compress the video. The video decoded by the central processing unit is converted into an optical signal for transmission through the optical fiber module.

[0008] As a further improvement of the present invention, the high-speed bus is a PCIE or MIPI or USB high-speed bus.

[0009] As a further improvement of the present invention, the optical fiber module is connected to a server, and the video images are monitored and the video files are dynamically archived through the server.

[0010] As a further improvement of the present invention, the central processing unit is integrated with a video decoder.

[0011] As a further improvement of the present invention, the video decoder is an H.264 / H.265 video codec.

[0012] As a further improvement of the present invention, the video processing module includes a video conversion unit and a physical interface connected to a high-speed bus.

[0013] The beneficial effects of the utility model are:

[0014] The utility model uses a high-speed bus to process more video acquisition signals at the same time, does not use memory for caching and hard disk to store video data, and does not need to decode and compress the video before transmission, which can greatly improve the system processing speed and reduce power consumption; optical fiber can achieve faster and more stable data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the system structure of the utility model;

[0017] Figure 2 This is a flow chart of Example 1 of the present utility model. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be explained more clearly and completely below in conjunction with the drawings in the embodiments. Of course, the described embodiments are only a part of the present invention, not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative labor are all within the scope of protection of the present invention.

[0019] As shown in Figure 1 to Figure 2, a multi-channel video acquisition and transmission system includes a video acquisition module interface, a video processing module and a central processing unit. The video processing module and the central processing unit are connected via a high-speed bus, and the central processing unit is connected to an optical fiber module.

[0020] The video processing module converts the video and transmits it to the central processing unit through a high-speed bus. The central processing unit is connected to memory and storage to form a minimum operating system to decode and compress the video. The video decoded by the central processing unit is converted into an optical signal for transmission through the optical fiber module.

[0021] The high-speed bus is a PCIE, MIPI or USB high-speed bus.

[0022] The optical fiber module is connected to a server, and the server monitors video images and dynamically archives video files.

[0023] The central processing unit is integrated with a video decoder.

[0024] The video decoder is an H.264 / H.265 video codec.

[0025] The video processing module includes a video conversion unit and a physical interface connected to a high-speed bus.

[0026] In the present invention, the video acquisition module interface collects analog video signals in NTSC / PAL / SECAM format from the camera device and transmits them to the video processing module. The video processing module converts the video analog signal into a digital signal through A / D conversion and transmits the digital video signal to the central processing unit through a high-speed bus such as PCIE / MIPI / USB.

[0027] The central processing unit, memory and storage form the minimum operating system. The H.264 / H.265 video codec integrated in the central processing unit compresses the digital video signal and converts the electrical signal into an optical signal through an optical fiber module. The optical fiber is used to achieve long-distance, low-loss transmission to the server, and the server is used to monitor the video screen and dynamically archive the video files.

[0028] The above scheme includes the following embodiments:

[0029] Example 1

[0030] The camera collects the current real-time status of the ocean waters and outputs the analog video PAL signal to GM1750;

[0031] GM7150 converts analog video input into digital video signal output. The process includes analog video source input - video clamping - video amplification - A / D conversion and gain adjustment.

[0032] The digital video signal is output to the central processing unit through the PCIE 3.0 channel via the Artix7 FPGA. The digital video input port is configured through the FPGA, and the internal analysis is adapted to the PCIE protocol and output to the PCIE physical interface, thereby achieving communication with the processor's PCIE port.

[0033] The H.264 / H.265 video codec integrated in RK3588 compresses the digital video signal through H.264 / H.265 and then converts the electrical signal into an optical signal through the optical fiber module;

[0034] The optical fiber is transmitted to the server end, and the video signal is output to the monitor display through the optical-to-electrical module, and video storage is also supported.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and description merely illustrate the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel video acquisition and transmission system, characterized by: It includes a video acquisition module interface, a video processing module and a central processing unit, wherein the video processing module and the central processing unit are connected via a high-speed bus, and the central processing unit is connected to an optical fiber module; The video processing module converts the video and transmits it to the central processing unit through a high-speed bus. The central processing unit is connected to memory and storage to form a minimum operating system to decode and compress the video. The video decoded by the central processing unit is converted into an optical signal for transmission through the optical fiber module.

2. A multi-channel video acquisition and transmission system according to claim 1, characterized in that: The high-speed bus is a PCIE, MIPI or USB high-speed bus.

3. The multi-channel video acquisition and transmission system according to claim 1, wherein: The optical fiber module is connected to a server, and the server monitors video images and dynamically archives video files.

4. The multi-channel video acquisition and transmission system according to claim 1, wherein: The central processing unit is integrated with a video decoder.

5. A multi-channel video acquisition and transmission system according to claim 4, characterized in that: The video decoder is an H.264 / H.265 video codec.

6. The multi-channel video acquisition and transmission system according to claim 4, characterized in that: The video processing module includes a video conversion unit and a physical interface connected to a high-speed bus.

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