Dahua Normal Recording and Broadcasting System adopts a highly integrated design, supports the collection of panoramic and close-up pictures of teachers and students, supports the synchronous collection of close-ups on blackboard and computer PPT signals, and has built-in image recognition tracking module, guide switching module, high-definition recording and broadcasting module , Live/on-demand modules, etc., without additional analysis cameras to achieve automatic picture tracking and switching, fusion of high-definition video and audio processing technology, image recognition tracking technology and web live broadcast technology, teachers and students can record the course process as long as normal class It can also be broadcast live in real time, on-demand later, etc., which greatly improves the production efficiency of famous teacher course videos and accumulates valuable video resources for online education.