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is HDCVI ?
HDCVI (High Definition Composite Video Interface) is an over-coaxial-cable analog HD video transmission standard which developed in-house. The technology renders two HD video formats—1080P (1920×1080) & 720P (1280×720) by progressive scanning.
over coaxial cable
and non-latency point-to-point transmission
Compensation & Long range transmission
500m via Φ75-3, 700m
300m via Φ75-3, 450m
composites video, audio and PTZ signals together and have them
transmitted over coaxial cable.
What HDCVI Brings?
to analog HD seamlessly with Low-cost
and simple installation value-added solution. Go
after the conventional analog system
and give a full consideration to users’ operation habit.
& uncompressed image quality —1080P(1920×1080) &
range & non-latency reliable video transmission without
additions of relay devices.
anti-interference capability & solid interface protection. Free
of high-frequent electromagnetic radiation; constant signal
display without problems as frame drop and lock loss occurred.
open analog HD transmission system established and evolved industry
to sustainably improve the technical standard
HDCVI and HD-SDI can transfer HD signal @720p/1080p, but HDCVI has a
distinguished advantage at the transmission distance. With general
transmission media, HD-SDI reaches 100 meters at most while HDCVI, at
least, transmits 500 meters by using 75-3 cable and featuring low
signal distortion rate.
anti-interference capability of HD-SDI solution is relatively poor
when been placed against high-frequent radiation environment, which
could lead to higher bit error ratio while the HDCVI adopts
low-frequency modulation technology, making it free from the
high-frequency wireless electric radiation to ensure stable video
transmission at high image quality.
HDCVI VS. IP
adopts P2P transmission to ensure a smooth and reliable transmission;
while the transmission of network camera is based on Ethernet and
thus may lead to network jitter and packet loss.
network HD features video buffer technology and the delay is
controlled within 300 milliseconds in the general and fair networking
environment; However, HDCVI features no latency capability for an
outstanding real-time performance.
HDCVI, there is no compression processed to maintain its original
effect and thus present in vivid image quality.
HD-SDI, which posts high demands on cabling and installation; HDCVI
solution inherits the same installing means of conventional
solutions, which is of great convenience and also decrease the cost.
HDCVI transmits multiple-signal (video/audio and dual-way data) over
one cable, it realizes video/audio synchronized transmission and
reverse-signal transmission control at the same time, such as PTZ and
zoom control; which further simplifies the installation.