At the end of 2012, Zhejiang Dahua announced the release of a high-definition video transmission specification for HDCVI, a high-definition composite video interface, which is a high-definition composite video interface. It is a high-definition video transmission based on coaxial cable. Specification, the use of analog modulation technology to transmit progressively scanned HD video.
HDTVI, the full name of the High Definition Transport Video Interface, is a high-definition video transmission interface based on coaxial cable. CVI cameras are high resolution, ultra long range transmission, 3D noise reduction, motion detection, remote OSD menu operation, coaxial audio transmission, and coaxial 485 communication.