NEW Vehicle-mounted SD COFDM wireless video transmission system
Product introduction:
ST6200CZA vehicle-mounted wireless image real time transmission
system is broadcast-grade high definition real time transmission system. It
adopts the current leading COFDM modulation technology. It has narrow air
bandwidth (8 MHZ) and strong anti-multipath interference capability, combining
with foreign advanced diversity reception technology, overcomes the perplex of
multi-path reflection and shield caused by analog technology and conventional
modulation techniques, to realize high-speed photography and real-time transmit
high quality image in 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 feature:
MPEG-2
standard high quality audio video NLOS wireless transmission; with real color
rendition and comfortable perception. It is most suitable for economical
project, meeting normal surveillance security & protection market(NLOS image
real time transmission).
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 50km in line of sight.
Product
advantages:
1.Working
frequency: 138MHz～999MHz(customized)
2.
High quality digital video processing, MPEG-2 video compression, DVD video
quality
3.
Ultra-short coding delay, 300ms
4
Stable av transmission under high-speed mobile and multi-path interference
environment
5.
Powerful NLOS transmission ability
6.
Transmission power: 10～30W(customized)
7,tv
wireless transmitter. Space diversity reception ability
8
Dual antennas reception, stable signals, smooth image
9.
Double circuit standard CVBS video output
10
.Standardization crate design, easy to use and install
11.
Can customize all kinds of product
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,rs
458, 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 ,suntor;
Topological graph
