Video transmission system of Camera Link-ARINC818 protocol and conversion method of Camera Link-ARINC818 protocol

A video transmission system and protocol technology, applied in transmission systems, TV systems adapted to optical transmission, TV system components, etc., can solve the problems of poor driving ability, high cost, and susceptibility to electromagnetic interference, etc., to achieve clear structure, The effect of flexible use and simplified circuit design

Inactive Publication Date: 2020-03-13
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Description
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  • Application Information

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Problems solved by technology

[0003] At present, after the video sensor data is generated, it is generally transmitted and processed inside the product through the Camera Link protocol. When the video is transmitted to the

Method used

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  • Video transmission system of Camera Link-ARINC818 protocol and conversion method of Camera Link-ARINC818 protocol

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] The present invention provides a design framework and conversion method of Camera Link-ARINC818 protocol, such as figure 1 As shown, the camera link interface video data can be received and output through the ARINC818 protocol bus.

[0023] A video transmission system of Camera Link-ARINC818 protocol, Camera Link video input to the video receiving unit, the video receiving unit transmits the video data to the data buffer unit, and the video receiving unit simultaneously transmits the video resolution and frame rate format information to the video Latch is carried out in the parameter register, and the data buffer unit passes data to the ADVB protocol state machine of the protocol generation unit, and the video parameter register also passes the video information to the ADVB protocol state machine of the protocol generation unit, and passes throug...

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Abstract

The invention provides a video transmission system of a Camera Link-ARINC818 protocol and a conversion method of the Camera Link-ARINC818 protocol. The Camera Link video is input into the video receiving unit; the video receiving unit transmits the video data to the data buffer unit; the data buffer unit transmits the data to an ADVB protocol state machine of the protocol generation unit; and thevideo parameter register also transmits the video information to the ADVB protocol state machine of the protocol generation unit, and the data passing through the ADVB protocol state machine passes through a high-speed serial coding interface in the protocol generation unit to output ARINC818 protocol parallel data through an optical fiber. The structure is clear, and FPGA implementation is easy;the circuit design can be simplified, and the size, power consumption and cost are reduced; line synchronization output is adopted, and delay minimization is guaranteed. Real-time extraction and adaptation of video formats are realized, and flexible use is ensured.

Description

technical field [0001] The invention relates to the field of airborne video data transmission, in particular to a transmission system and conversion method of FPCA logic development, ARINC818 protocol and Camera Link protocol. Background technique [0002] The Camera Link protocol is a standard interface for video sensors in airborne or commercial environments. It has the characteristics of low power consumption, high bandwidth, and flexible applications, but its driving and anti-interference capabilities are limited, and it is not suitable for long-distance transmission; the ARINC818 protocol is an airborne In the environment, it is a point-to-point transmission protocol based on Fiber Channel (FC) for high-bandwidth, low-latency, uncompressed digital video, suitable for long-distance transmission. [0003] At present, after the video sensor data is generated, it is generally transmitted and processed inside the product through the Camera Link protocol. When the video is tr...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04N5/268H04N7/22
CPCH04L69/08H04N5/268H04N7/22
Inventor 牛晓航孙晓燕
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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