> Wireless network video frequency server
monitoring solution:
First, outline
The video frequency monitoring is a historical quite
glorious application form, the application domain also extremely
widely, the function which mainly completes is the matter video
frequency surveillance which and occurs to another place thing and (in
certain degree) controls. From "the video frequency monitoring"
this noun we may understand has two kinds to the video frequency
supervisory system main function: Surveillance and control.
The surveillance is refers to is monitored the scene the
understanding and grasps, but the control function is to is monitored
the place the matter response.
Along with the science and technology development, in the
hardware aspect integrated circuit, the monolithic integrated circuit,
video frequency technical the and so on gathering card, computer
development has had the huge impetus function to the video frequency
monitoring technology, more and more complex enables, the function
more and more formidable video frequency supervisory system possibly
to become; In the software aspect said each kind of video
frequency code technology, the network agreement, the class media
technology and the software engineering technology and so on all have
also had the huge influence to the video frequency monitoring
technology. Therefore, the video frequency monitoring technology
development is along with other technical development synchronization
development, is process which advances gradually.
In information high speed development today, the CDMA1X network
construction has consummated day by day, the CDMA wireless video
frequency supervisory system the monitoring equipment and between the
monitoring center will carry on the data transfer through the CDMA1X
network, will realize the real-time long-distance picture transmission
and the motion monitoring goal; Unifies the advanced CDMA1X
network to realize above the 80K data transmission to be possible to
realize each second 1-15; Solved was monitored the scene not to
be able to fix the question which was unable in a position to
transmit.
Second, system design principle and standard
2.1 system designs principle
The network video frequency supervisory system key for
strengthens the business center the management, the equipment choice
safely has reliable, advanced, the operation simple, exempts the
maintenance to be strong and so on the characteristic, simultaneously
also must give dual attention to saves the investment, constitutes,
the complete system advanced by the natural price compared to the best
equipment. We make every effort the system design 先进? the
reliability, the usability and may the extension. Below
simultaneously manifests the principle:
先进?br>The overall system maintains certain 先进? uses the
equipment and the technology are at present international leading.
Standardization
The network video frequency supervisory system is must
realize on the network system image transmission and sharing.
This system supports the MPEG4 encoding method
But extension
Will be able unceasingly to change along with the user
later demand, monitoring quantity along with it expansion front end,
so long as will increase the equipment and promotion software, will
not need to increase other additional equipments, will guarantee the
user the investment cost.
Usability and reliability
We considered from user's angle that, used the inserting
-like operating system, the usability, the stability has all been able
to obtain the guarantee.
Usability
Software contact surface friendly, the use is simple.
Timeliness
Based on band width superiority, video frequency
picture, data real-time transmission.
2.2 system designs standard
Based on the project request, passes through we
earnestly to analyze with the design, our plan may guarantee the
system has the performance advanced, the quality reliable, the economy
is practical and so on the characteristic.
Based on the related standard includes:
"People's Republic of China Public Profession
Standard" (GA/T70-94)
"Industrial enterprise General Design
Standard" (GBT42-81)
"Safe Guard Project Procedure And
Request" (GA/T75-94)
"Electric installation Installation work
Construction And Approval Standard" (BGJ232.90.92)
"Civil Close up Surveillance television
Systems engineering Technology standard" (GB50198-94)
"Consumer industry Construction
Electricity Design Standard" (GJT16-92)
"Television system Video frequency
Target" (CCTR RECOMMENDATION 472-3)
"China Electrical fittings Installation
work Construction And Approval Standard" (GBJ232-90-92)
"Intelligence Architectural design
Standard" (DBJ08-47-95)
"Commercial Construction Line Cable
Standard" (EIA/TIA-569)
Third, wireless long-distance video frequency
supervisory system composition
The Beijing East news science and technology wireless
long-distance video frequency supervisory system by the front end
equipment, the system monitoring center two parts is composed.
1st, front end equipment
This system altogether has front end 1,000 监控?
distributes to oil field each place. The camera and the CDMA
wireless network video frequency server is connected, the CDMA
wireless network video frequency server (might connect, smoke feeling,
microwave infrared and so on each kind of panalarm) 监控?the
simulated video will transform after the digital signal reduces the
MPEG4 video frequency to flow the form, with the aid of CDMA1X
wireless network data transmission and so on video frequency picture,
control signal to monitoring center. In view of the fact that
all 监控?all is outside installs, needs to provide the outdoors
云台, the outdoors 护罩 and 云台 the lens decoding.
2nd, monitoring center
The monitoring center is this system core are partial,
undertakes in this system all front end equipment management, the
control, is reporting to the police processing, the video recording,
the video recording examination, the user management, the jurisdiction
management and so on the important work. The monitoring center
must dispose a steady pipe principle workstation to take the system
administration and the establishment. Disposes a server to serve
as retransmitting which the video frequency flows, if needs the
request which the massive video recording saves to be possible to dub
in stores up the server.
Fourth, wireless long-distance video frequency supervisory
system application case
The Beijing East news science and technology passes
through long-term trying to find out with the practice, summarized a
correspondence to be stable, the low cost wireless video frequency
transmission solution.
Network structure drawing: Wireless long-distance
video frequency supervisory system
Below this plan, you only need the equipment:
(1) GPRS/CDMA wireless video frequency server;
(2) SIM/UIM card;
(3) the server retransmits software; (May elect. If
you do not need many spots simultaneously to examine the video
frequency, then may omit.)
(4) video frequency examination customer end software;
(5) camera.
Lays aside the camera and the CDMA wireless video
frequency server in each 监控? gives the wireless video frequency
server and the camera power supply with the 12V direct-current power
supply. The video frequency center server is located Internet to
be on-line, is responsible to receive each 监控?video
information, and retransmits as necessary for some computer terminal.
Any units place to the Internet on-line computer terminal all
may through the video frequency examine software examines any
监控?video frequency situation. Equipment detailed list Equipment name disposition and function quantity
unit price
The GPRS/CDMA wireless video frequency server (single
card) supports 1 real-time monitoring video channel, automatically
completes CDMA/Internet to turn on 10.0038 million Yuan/
The SIM/UIM card 1,000 supplies for oneself
The video frequency customer end examined software
examined each 监控?scene video frequency 1 bestows
The server retransmits software to realize the multi-
spots simultaneously the jail to look. 15,000 Yuan/wraps
Outside the camera the camera 1,000 supplies for
oneself Fifth, system request
监控?passes on the video frequency
picture through the CDMA network in
Realizes the management control through
video frequency software
The monitoring center may 监控?carry
on the unification management to front end 1,000
Any has the CDMA network the place all to
be allowed to realize the real-time monitoring
The picture form is QSIF/SIF
When the picture form is SIF, 1 /20
second; When the picture form is QSIF, 1 /5 second
Monitoring management software can
realize control and so on user, jurisdiction management
Supports the general panalarm
Support 云台 lens control
Sixth, wireless transmission mode superiority
The Beijing East news science and technology fully uses
China Unicom CDMA the 1X network, has the CDMA network cover the place
to be able to transmit the data. Compare with the traditional
simulation supervisory system and the existing wired supervisory
system, the wireless transmission has the following superiority:
(1) the network overhead construction is stable. When has
a new mine pit, does not need to change the existing network overhead
construction, only needs to increase the corresponding data
transmitting equipment.
(2) the equipment setup is simple. Constructs the new
minute stand not to need to carry on 拉线, buries work and so on
line. Compares the optical fiber or the special line system
investment less, the equipment setup is convenient.
(3) CDMA the 1X fees are cheap, cost reasonably. The
CDMA1X fees hire by the month the wire telephone network fees are also
cheaper than.
(4) CDMA 1X can support frequently, few the arise suddenly data
service well. The correspondence quality stable is reliable,
never falls the line.
(5) the CDMA1X network turned on the speed to be quick, has
provided and the existing data networking seamless connection.
Because CDMA1X net itself is a grouping 型数 according to the
net, supports TCP/IP, the X.25 agreement, therefore does not need
after network and so on PSTN switching over, directly (the IP net or
the X.25 net) exchanges with the integrated data network, turns on the
speed only several seconds, quickly to electric circuit data service.
Uses the TCP/IP agreement, compared before the wireless data
network (colony, bidirectional messenger call, the GSM short
information) said, the network turned on directly is convenient.
Seventh, CDMA 1X wireless turns on security
The data central passable the data networking (VPDN)
has turned on to the China Unicom CDMA net in, uses the VPDN way cost
comparison lowly, the security quite is high, but fully safeguards the
speed and the network grade of service. Attaches: 1 wireless router video frequency
monitoring solution
EIC-RC10 the CDMA wireless router has RJ45 the 10M
ethernet mouth, it can cause your local area network to share the CDMA
wireless connection, has the address translation (NAT) as well as
other network service functions. Connects on the ethernet RC10,
this ethernet user may share accesses the net. May use in mid-
and small-scale enterprise, the family Internet sharing accesses the
net, industry picture, video frequency and so on great data quantity
transmission, each kind of monitoring, data acquisition and so on. CDMA correspondence characteristic:
Wireless, great data quantity correspondence
The correspondence effect relies on the
CDMA network construction
Present stage CDMA network construction
already mature, CDMA data communication stable, the data transmission
speed is quick, data quantity big merit. The next good speed may
reach about 150kbit/s, on the good speed may reach about 80kbit/s.
About Beijing test speed 100kbit/s, on about good speed
30-40kbit/s.
2 routers application service types
The router application is broad, the router may the
application domain include:
Finance, retail sales profession
The vehicle carries moves the bank
POS machine networking
Automatic vending 机刷 card and
commodity information report
Automatic cabinet Yuan machine (ATM)
networking
Automatic cabinet Yuan machine picture
surveillance
Bank savings bank engine room
monitoring
Motion card volume transaction and
information inquiry
Industry video frequency monitoring
State of the water surveillance
Environmental pollution surveillance
Nobody value defends the environment
surveillance
City street intersection traffic flow
surveillance and information index plate information issue
Motion work
Oil field, coal mine data acquisition
and monitor
Running water, gas piping, strobe,
pumping station and water works monitoring
Heating system real-time monitoring and
maintenance
Environmental protection system data
acquisition
Three-defense and hydrology monitor
Meteorological data gathering
Other nobody value defends (for example
warehouse, office building and so on) monitors
Intelligence transportation system
Mid- and small-scale enterprise, the
family, individual Internet sharing accesses the net
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