A. It is an international standard in the video surveillance industry, formulated and issued by the International Telecommunication Union ITU
B. ONVIF has formulated communication specifications for the video surveillance industry and agreed to the communication language. It is the layer products of different manufacturers that can communicate with each other
C. Full name Open Network Video Interface Forum
D. The main application areas include the intercommunication of IP cameras, video surveillance platforms, access control systems, etc.