The Design Of HD-SDI Video Monitoring System Based On TMS320DM6467T

In recent years, HD can be said to be the most popular topic in monitoring industry, the major manufacturers have launched their own HD products, especially high-definition network camera is rich models, peripheral equipment, emerged in solutions of various IP HD system, and become the mainstream HD video surveillance applications at present. But because of the existence of IP HD monitor does not solve the problem of delay and frame dropping root, make HD-SDI monitor system into the field of security monitoring conveniently, and quickly in the security market occupy a space for one person, and appears as an equal with IP HD system potential.TMS320DM6467T is the most advanced digital media sheet (SoC) based on DaVinci technology launched by TI for HD video applications, which integrates a ARM926EJ-S core, an C64x+DSP core, two HD video image processor and a lot of device controller on-chip.The design is based on TI the new1GHz TMS320DM6467T DaVinciTM video processor as the core processor, combined with GV7601and GV8500interface chip design a HD-SDI video encoder system,realized the SDI digital high-definition video real-time monitoring, collection, compression, transmission and storage.Firstly, the article does a simple introduction to the DM6467T digital media processor of the TI. And then introduces the hardware design and the implementation scheme of HD-SDI video monitoring system in detail, including the circuit principle diagram of the DDR2memory, SDI video input and output interface, LAN interface, RS232and RS485, input and output of alarming, video coding processing module and corresponding anti-static and surge protection circuit. Finally, the article introduced the driver debugging system and build the platform, realizes H.264HD video encoding, HD-SDI video input/output, WEB server real-time monitoring function briefly, and extension of the subsequent function as a prospect.