摘要： 为了在工业现场和安防监控领域更好地利用Hi3559强大的视频图像处理能力实现高清视频的远距离传输和智能算法，采用Hi3559+FPGA硬件架构，通过高清数字接口(High Definition Digital Interface，HD-SDI)视频均衡器利用同轴线缆传输方式，设计实现了多路1080P的高清视频传输系统。该设计系统方案主要是解决了Hi3559虽然支持多种Sensor视频接口，但是没有可以直接支持多路HD-SDI摄像头的输入方式和设计方案。该系统利用Hi3559实现了8路HD-SDI视频图像的采集、传输、处理、以及全景显示。相比海思常见的相机串行接口(Camera Serial Interface，CSI)传输方案，采用HD-SDI传输距离更远，理论可达200 m。通过测试和验证，该设计方案可行，传输距离远，工作稳定可靠，对于多路HD-SDI视频的采集传输和全景显示等方向具有较高的推广和应用价值。
中圖分類號： TN941.1 文獻(xiàn)標(biāo)識碼： A DOI：10.16157/j.issn.0258-7998.211439 中文引用格式： 王毅，張禹，錢宏文. 基于Hi3559的多路HD-SDI視頻傳輸系統(tǒng)[J].電子技術(shù)應(yīng)用，2022，48(3)：83-87. 英文引用格式： Wang Yi，Zhang Yu，Qian Hongwen. Multi-channel HD-SDI video transmission system based on Hi3559[J]. Application of Electronic Technique，2022，48(3)：83-87.
Multi-channel HD-SDI video transmission system based on Hi3559
Wang Yi，Zhang Yu，Qian Hongwen
China Electronics Technology Group Corporation No.58 Research Institute，Wuxi 214072，China
Abstract： In order to make better use of Hi3559′s powerful video image processing capabilities in the field of industrial sites and security monitoring, to achieve long-distance transmission of high-definition video and intelligent algorithms，adopting Hi3559+FPGA hardware architecture, using the coaxial cable transmission method with the high-definition digital interface(HD-SDI) video equalizer, this paper designs and realizes the multi-channel 1080P high-definition video transmission system. This design system solution mainly solves that although Hi3559 supports a variety of Sensor video interfaces, it does not have an input method and design solution that can directly support multiple HD-SDI cameras. The system uses Hi3559 to realize 8-channel HD-SDI video image acquisition, transmission, processing and panoramic display. Compared with HiSilicon′s common camera serial interface(Camera Serial Interface，CSI) interface transmission scheme, HD-SDI transmission distance is farther theoretically up to 200 m. Through testing and verification, the design scheme is feasible, long transmission distance, stable and reliable, and has high promotion and application value for the acquisition and transmission of multi-channel HD-SDI video and panoramic display.
Key words : Hi3559；FPGA；high definition digital interface(HD-SDI)；equalizer；1080P
Hi3559作為華為海思推出的一款強(qiáng)大片上系統(tǒng)(System on Chip，SoC)芯片，不僅具有豐富的視頻和各種外圍接口，而且內(nèi)部集成了很多視頻圖像處理模塊，處理器支持不同格式視頻的編碼和解碼、圖形的畸變校正、去噪，以及鏡像、旋轉(zhuǎn)和色彩的增強(qiáng)等，可用于多路Sensor視頻的輸入，內(nèi)部集成H.265編解碼處理單元，能夠支持高清的RAW原始碼流視頻的輸出，SoC內(nèi)部含有高性能圖像信號處理器(Image Signal Processor，ISP)[5]，SoC使用了低功耗的架構(gòu)和工藝技術(shù)，支持多路全景硬件拼接[6]，為使用者提供了高性能的硬件平臺。
