HDCVI is an over-coaxial-cable analogue HD video transmission standard which has been developed in-house. The technology renders two HD video formats—1920H (1920×1080) and 1280H (1280×720) by progressive scanning.

The HDCVI features multiple advantages and conveniences. First, it can be upgraded to analogue HD seamlessly with minimum cost since the whole system goes after conventional analogue system topology and gives a full consideration to users’ operational habits. Second, the HDCVI composites video, audio and PTZ signals together and is able to transmit them over coaxial cable, which makes reliable non-latency, long range (500m) video transmission possible. Third, it is designed with a strong anti-interference capability and solid interface protection, to be more specific, it is free of high-frequency electromagnetic radiation.

Covering a display area of 216 square metres at the show, Dahua Technology demonstrated many new products along with existing products. For example, the newly launched 3-inch and 4-inch PTZ dome cameras attracted much attention, and the long-awaited WDR network cameras and IPCs with varifocal motorised lens series also attracted many enquiries.