NEW Vehicle-mounted narrow-bandwidth SD COFDM wireless video transmission system
Product introduction:
ST6200CZA-Z vehicle-mounted narrow-bandwidth wireless image real time
transmission system(strict conformance with police department transmission
frequency band requirement: 2MHz frequency band), it adopts COFDM modulation
technology and combine with foreign advanced diversity reception technology. It
has higher sensitivity, farther transmission distance and stronger
anti-interference performance than 8MHz products. It is mostly used for NLOS or
complicated working environment.
AV
coding adopt MPEG-2 standard, definition reach to DVD resolution ratio（720*576@
PAL / 720*480@ NTSC）. The advantage of the product includes clear image quality,
good color performance and smooth image.
Product ,2.4 ghz wireless
receiver;feature:
Used
for long range av transmission. As it adopts 2MHz wireless frequency band, it
has higher requirements about the coding stream rate. And it also reduces the
channel rate, increase the sensitivity receiving limitation, with stable
signals.
COFDM
anti-electromagnetic interference performance:
It
has superior performance against frequency selective fading or narrow bandwidth
interference and signal waveform interference. It has strong anti-fading
ability, through each sub-carrier joint coding. In single carrier
system(digital microwave, spread spectrum system, etc), single decline or
interference will result in all communication link failure. But in multiple
carrier COFDM system, only a few sub-carriers will be interfered What’s more,
these sub-channels can adopt ECC to correct error, to guarantee the transmission
low error rate.
COFDM
anti-multipath fading performance:
It
can confront signal waveform interference effectively., suitable for multi-path
environment and fading channel high-speed data transmission. When the frequency
selective fading appear in the channel because of multi-path transmission, only
the sub-carrier, which fell over the band depression, and the information
carried will be affected. Other sub-carriers will not be affected. Thus, the
system total error rate performance will be much better.
Vehicle-mounted equipment application:
Used in man to car ,man to control center. This equipment has transmit power and long transmit distance ,can do a wide range of mobile high definition image transmission, distance can up to 90km in line of sight.
Used in man to car ,man to control center. This equipment has transmit power and long transmit distance ,can do a wide range of mobile high definition image transmission, distance can up to 90km in line of sight.
Product
advantages:
1.
2MHz wireless bandwidth transmission, DVD video image quality.
2.
Dual AES encryption can be set manually
3..
It comes with display to show the parameters, adjustable parameters
4.
Receiver has LCD display to show the Signal strength indication
5.
Receiver has CVBS and digital HDMI output
6..
Only using 2MHz frequency bandwidth
7.
Longer wireless transmission distance, about 1/3 longer than the 8MHz bandwidth
products
8.
High quality digital video processing, and H.264/MPEG-2 video encoder
decoder.
9.
Very low delay when encoding, about 300ms point to point
10.
Transmit audio video stably when the equipment moving fast and with much
interference.
11..Supports
NLOS distance transmission
12.Transmission
power:10-30w adjustable
13.
With spatial diversity reception capability
14.Two
receiver antennas, with stable signal and smooth video image
15,wireless
transmitter and receiver for tv.Can customize all kinds of product form
,suntor;
Product
application：
This
product has wide application, such as Public security, Fire control, traffic,
Civildefense emergency, City management、Environment monitoring, Flood
control、Electricity rescue、Railway rescue、Maritime law enforcement、Maritime
surveillance inspections、Customs and Border Protection、Pier monitoring、Forest
Fire、Oilfield theft、Military reconnaissance、living broadcast, and so on. It is
suitable for urban area, seaborne, mountainous region and other complex
environment high quality image mobile transmission.
Application
mode:
Transmission
path: TX~ communication command vehicle ~ local command centre ~ network to
provinces and cities command centre. At the front end, workers carry the
transmitter to transmit the site audio, video signals to communication command
vehicle; Then, the communication command vehicle as repeater to extend the
wireless signals to local command centre; Last, in the local command centre,
customers can access one channel av signals into monitor to realize real time
monitoring and control. For another av signals, it can be transmitted to all
provinces and cities by MAN or WAN command centre. In the command centre,
customers can also access the signals into PC to view av signals and record.
Sketch
map
Topological graph
