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A three-channel image transmission interface conversion method

A conversion method and transmission interface technology, applied in FPGA-based three-channel image transmission interface conversion device, in the field of image transmission interface conversion, can solve the problems of increasing camera comparison and application complexity, increasing hardware cost, increasing system complexity, etc. , to achieve the effect of intensive utilization, improvement of conversion efficiency and adaptability

Active Publication Date: 2019-11-29
中船星惯科技(武汉)有限公司
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Problems solved by technology

This undoubtedly increases the complexity of testing, comparison and application of cameras with various interfaces
The common practice is to use special image transmission interface conversion devices such as Camera link to USB3.0 interface box, SDI to Camera link interface box and USB3.0 to SDI interface box, etc., to realize one-way conversion between the two interfaces, However, if this method is used to realize arbitrary switching between the above three interfaces, six special interface boxes are required, and the complexity of the system increases sharply, and the hardware cost also greatly increases

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Embodiment Construction

[0038] The specific implementation method of the three-channel image transmission interface conversion device of the present invention will be described below in conjunction with the accompanying drawings.

[0039] One, at first introduce the concrete hardware structure of the present invention.

[0040] A three-channel image transmission interface conversion device, such as Figure 6 Shown include:

[0041] 3G-SDI interface and 3G-SDI main control chip connected in sequence;

[0042] The USB3.0 interface and USB3.0 main control chip connected in sequence;

[0043] The camera link interface and the camera link interface conversion chip connected in sequence;

[0044] FPGA digital processing circuit and DDR3 memory, external input control circuit, clock management circuit, power management circuit and serial communication circuit;

[0045] The 3G-SDI main control chip, the USB3.0 main control chip and the Camera link interface conversion chip are connected to the FPGA digit...

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Abstract

The invention relates to a three-channel image transmission interface conversion device and an image transmission interface conversion method. The three-channel image transmission interface conversion device comprises a 3G-SDI interface and a 3G-SDI master control chip which are sequentially connected, a USB3.0 interface and a USB3.0 master control chip which are sequentially connected, and a Camera link interface and a Camera link interface conversion chip which are sequentially connected. The image transmission interface conversion method comprises two steps. The three-channel image transmission interface conversion device and the image transmission interface conversion method have the advantages of being capable of realizing mutual conversion of three kinds of mainstream digital image transmission interfaces, fully utilizing the advantages of high flexibility and programmable feature of an FPGA, realizing various encoding algorithms and decoding algorithms in the FPGA, solving the problem of arbitrary conversion among the three kinds of image interfaces, making full use of hardware resources, and improving the integration degree of the image transmission interface conversion device.

Description

technical field [0001] The invention relates to the field of image transmission, in particular to an FPGA-based three-channel image transmission interface conversion device and an image transmission interface conversion method. Background technique [0002] At present, there are various types of image transmission interfaces used in various cameras, which can be divided into analog image transmission interfaces and digital image transmission interfaces. With the increasing demand for high frame rate and high-resolution image transmission, digital image interfaces have a wide range of applications. Camera The link interface, USB3.0 interface and 3G-SDI interface are the current mainstream digital image interfaces, and the three interfaces are used in various fields according to their respective characteristics. [0003] The Camera link interface is a communication interface developed based on the Channel Link technology. There are three configuration modes: Base, Medium, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/765
CPCH04N5/765
Inventor 李奇尹业宏宣扬毛海岑彭煜杜勇
Owner 中船星惯科技(武汉)有限公司
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