HDCVI (High Definition Composite Video Interface) is called CVI, which is a high-definition composite video interface. It is a high-definition video transmission specification based on coaxial cable. It uses analog modulation technology to transmit progressively scanned HD video. HDCVI has been written into the technical requirements of the GA/T 1211-2014 security and high definition video surveillance system, which was implemented on April 1, 2015.
The HDCVI HD composite video interface standard has completely independent intellectual property rights. The first version of the white paper 0.50 was released by Zhejiang Dahua Technology Co., Ltd. on July 31, 2012. The latest version is 1.00, which was on November 15, 2012. Officially released.