CN107302688A - A kind of method that Depending on city video monitoring system builds " wireless city " - Google Patents
A kind of method that Depending on city video monitoring system builds " wireless city " Download PDFInfo
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- CN107302688A CN107302688A CN201710605621.6A CN201710605621A CN107302688A CN 107302688 A CN107302688 A CN 107302688A CN 201710605621 A CN201710605621 A CN 201710605621A CN 107302688 A CN107302688 A CN 107302688A
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- Prior art keywords
- city
- wireless
- monitoring system
- video monitoring
- equipment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
Abstract
The invention provides a kind of method that Depending on city video monitoring system builds " wireless city ", this method comprises the following steps：S1：Using the networking equipment of existing city video monitoring system, wireless AP devices are set up at the camera of city video monitoring system front end；S2：The headend equipment ONU equipment physical connection of wireless AP devices and GPON networks；S3：ONU equipment is carried out data transmission by the optical fiber transmission line of shared city video monitoring system and connects optical splitter；S4：The local side apparatus OLT device physical connection of optical splitter and GPON networks.This method utilizes the device resource of existing city video monitoring system, solve " wireless city " layout difficult, coverage rate it is not enough the problem of, input and O＆M cost that " wireless city " is built are reduced, is conducive to promoting the Fast Construction of " wireless city " and long-term operation.
Description
Technical field
The present invention relates to a kind of method that Depending on city video monitoring system builds " wireless city ".
Background technology
" wireless city ", is exactly, using high-speed wideband wireless technology covering municipal administration region, to be provided to the public and utilize nothing
The service on net anywhere or anytime of line terminal.
With the popularization and extensive use of the network equipments such as smart mobile phone, citizen almost human hand one and carry with,
Become vast civic demand therefore, it is possible to surf the Net whenever and wherever possible.The construction of " wireless city " is not only numerous citizen's service,
Promoting for Development of Information Service and conventional industries is even more may advantageously facilitate, is conducive to tapping new sources of economic growth.
" wireless city " is urban modernization and an information-based infrastructure, is also to weigh city operations efficiency, letter
The important symbol of breathization degree and competitive level.
At present, it is domestic that wireless network covering is realized in some key city regions, there is more ripe networking plan, mainly
By high-power AP equipment as WiFi network access device, optical fiber is completed by EPON (PON) and transmitted, then passes through road
Metropolitan Area Network (MAN) (internet) is entered by device, while configure wireless controller (AC) carries out comprehensive management to the AP equipment of the whole network.At this
, it is necessary to which very intensive laying AP equipment realizes " point-like covering " under the mode of kind, not only invest too high, and from technological layer
Say coverage than relatively limited, it is impossible to meet user whenever and wherever possible, it is convenient with demand of efficiently surfing the Net.Although can be carried locally
For the access service of some WiMAXs, but use still very inconvenient.Due to these WLANs can not be connected
Together, therefore using and promoting for it has been fettered.In addition for network operator, it is impossible to the access of the strange land of user, recognize
Card, charge etc. are effectively managed.Therefore many operators require that the construction that wireless city is netted by government is used as utility
To do, invested by government.
" wireless city " as an infrastructure in city, the characteristics of having municipal public good, while must be introduced into sustainable
Business model, it is ensured that the sustainable development of " wireless city " network.Due to well-known, it is best suitable for building " wireless city
The common carrier in city ", tends not to the construction of large scale investment " wireless city ".On the other hand, government department or enterprise are
, there is shortage profit model, a series of problems, such as network coverage is not enough, network quality is low in the construction mode of main body.
The headend equipment of " wireless city " is usually newly-built or built using part urban operating mechanism in public domain at present
Into, due to the various limitations of urban construction, there are various construction problems, net in terms of vertical rod, equipment box and the power supply of headend equipment
Network quality is unsatisfactory, and subject matter includes：
1st, the network coverage is not enough：Existing " wireless city " often lacks enough infrastructure constructions and is sufficient for city
The WiFi access points of city's use demand；
2nd, online experience is poor：In the case where the network coverage is not enough, most of " wireless city " is due to pipeline, optical fiber, machine
The limitation of the infrastructure in room causes load-bearing network quality, management and O＆M to be unable to reach operator grade, have impact on user's
Online experience；
3rd, overall build of " wireless city " needs to put into substantial amounts of fund, and later stage operation is also required to lasting fund and thrown
Enter, still the profit model of " wireless city " is still immature, it is difficult to produce positive cash flow in a short time, short-term fortune easily occur
Situation hard to carry on after battalion.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide the building method of a kind of " wireless city ", the party
Method utilizes the device resource of existing city video monitoring system, solve " wireless city " layout difficult, coverage rate it is not enough the problem of,
Input and O＆M cost that " wireless city " is built are reduced, " wireless city " Fast Construction and long-term operation is promoted.
The method that " wireless city " is built based on a kind of Depending on city video monitoring system that the above-mentioned purpose present invention is provided,
Comprise the following steps：
S1：Using the networking equipment of existing city video monitoring system, at the camera of city video monitoring system front end
Set up wireless AP devices；
S2：The headend equipment ONU equipment physical connection of wireless AP devices and GPON networks；
S3：ONU equipment is carried out data transmission by the optical fiber transmission line of shared city video monitoring system and connects light splitting
Device；
S4：The local side apparatus OLT device physical connection of optical splitter and GPON networks.
The present invention is according to city video monitoring system and " wireless city " closely similar networking plan, by " wireless city "
Construction be combined with city video monitoring system construction, make full use of city video monitoring system build in infrastructure and
Bearer network is overlapped with " wireless city " to be shared, and greatly reduces the input cost and operation cost of " wireless city " construction,
And the extensive covering of city video monitoring system has also promoted the raising of " wireless city " coverage rate, be conducive to promoting " wireless
City " Fast Construction and long-term operation.
According to another embodiment of the invention, in step S1, wireless AP devices are erected at city video monitoring system
In the vertical rod of camera, the consumer unit and equipment box of camera are shared.
According to another embodiment of the invention, in step S2, it is independent when disposing wireless AP devices to set up ONU equipment
Transmission, carries out the physical isolation of video data stream and " wireless city " data flow.
According to another embodiment of the invention, in step S2, GPON networks share the ONU of city video monitoring system
Equipment, increases a VLL progress logic isolation newly between OLT device and every wireless AP devices.
According to another embodiment of the invention, in step S2, " wireless city " business is with former video traffic by drawing
Different VLAN tags are divided to carry out traffic differentiations.
According to another embodiment of the invention, in step S4, AC equipment is configured at OLT device end.
According to another embodiment of the invention, there is provided concentrate forwarding and local forwarding in data processing for this method
Two kinds of data processing methods.
Compared with prior art, the present invention possesses following beneficial effect：
1st, by using the resource of city video monitoring system, " wireless city " difficult, covering of layouting can be solved not enough
And bearer network off-capacity, the problem of network quality is not high, improve the Consumer's Experience of " wireless city ".
2nd, the construction input and O＆M cost of " wireless city " can be reduced using city video monitoring system resource, is more held
The profit model of " wireless city " is easily set up, promotes " wireless city " to run for a long time.
3rd, serviced by providing " wireless city ", government department can gather more people from public domain flow datas, favorably
In carrying out deeper big data analysis, city management and comprehensive regulation application in actual combat are created.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the group-network construction figure that embodiment 1 " wireless city " is built；
Fig. 2 is the group-network construction figure of the city video monitoring system of embodiment 1；
Fig. 3 is that the utilization city video monitoring system of embodiment 1 builds the group-network construction figure of " wireless city "；
Embodiment
Embodiment 1
Present embodiments provide a kind of method that Depending on city video monitoring system builds " wireless city ".Fig. 1 is this reality
Apply the group-network construction figure of example " wireless city " construction.High-power wireless AP equipment is relied primarily in figure to set as WiFi network access
It is standby, realize that optical fiber is transmitted by EPON (PON), Metropolitan Area Network (MAN) (internet) is entered by router, while configuration is wireless
Controller (AC) carries out comprehensive management to the AP of the whole network.
Fig. 2 is the group-network construction figure of city video monitoring system, as illustrated, the multiple prisons laid in different zones position
The video data that control camera is shot is transmitted by GPON networks, and unified storage and management are carried out into video private network.
The networking plan of city video monitoring system and " wireless city " is closely similar it can be seen from Fig. 1 and Fig. 2, all
It is that, by front-end collection equipment, optical transport network and rear end management platform (storage device) are constituted.
As urban infrastructure constantly develops, the city of modernization needs the management means modernized, city video
Monitoring system is as structure safe city, the important supplementary means of harmonious society.At present, monitoring camera has spread all over big-and-middle city
Each corner of city, the camera of each urban construction is thousands of, the even up to hundreds of thousands having.City video monitoring system pair
Quality of service, system reliability requirement it is very high, infrastructure and bearer network build complete, if " wireless city " can add
To utilize, the problem of thoroughly can solving existing, while substantially reducing construction and O＆M cost.
Utilize city video monitoring system construction " wireless city ", it is only necessary to do simple upgrading i.e. in the network architecture
Can, specific implementation is as shown in Figure 3.
S1：Using the networking equipment of existing city video monitoring system, at the camera of city video monitoring system front end
Set up wireless AP devices；
The headend equipment monitoring camera of city video monitoring system and the headend equipment wireless AP devices of " wireless city "
It is similar, it is necessary in the vertical rod, and need to be equipped with special consumer unit and equipment box to maintain the operation of equipment.It is " wireless
City " can directly utilize the consumer unit and equipment box of existing city video monitoring system monitoring camera, increase necessary circuit
Wireless AP devices are supplied with electronic component, and share same vertical rod, infrastructure cost, city video is greatly reduced
The extensive layout of monitoring system monitoring camera for wireless AP devices " point-like covering " set up provide good facility ring
Border.This method is not only that the construction of " wireless city " saves cost, reduces installation steps, more existing device resource is entered
Go and reasonably recycled, energy-conservation environmental protection again.
S2：The headend equipment ONU equipment physical connection of wireless AP devices and GPON networks；
City video monitoring system is required for carrying out data transmission by GPON networks with " wireless city ", in existing city
Realize that shared is a key character of the present embodiment on the GPON networks of video monitoring system.But it is due to city video monitoring
The tight security and confidentiality of system, when being transmitted using same fiber optic network, it is necessary to video data stream and wirelessly
Network data flow is isolated and distinguished, and just be can guarantee that and city video monitoring system network is not impacted.
As an optional embodiment, existing Transmission Fibers are all made up of both threads, city video monitoring system
In ONU equipment occupy single line therein, remaining single line is vacant.Can be in optical fiber when disposing wireless AP devices
Another single line directly set up ONU equipment and carry out individual transmission, realize video data stream and " wireless city " data flow
Physical isolation.
As an optional embodiment, " wireless city " shares existing city video monitoring system ONU equipment, by
Certain parameter setting is carried out in ONU equipment, a VLL is increased newly between OLT device and every wireless AP devices and carries out
Logic isolation.
" wireless city " business further carries out business from former video monitoring system business by dividing different VLAN tags
Distinguish.
S3：ONU equipment is carried out data transmission by the optical fiber transmission line of shared city video monitoring system and connects light splitting
Device；
Optical splitter is a component for setting up GPON networks, is a connection OLT and ONU inactive component, its function
It is distribution downlink data, and concentrates upstream data.Optical splitter is with a up optical interface, some descending optical interfaces.From up
The optical signal that optical interface comes is assigned to all descending optical interfaces and transferred out, the optical signal quilt come from descending optical interface
Unique up optical interface is assigned to transfer out.Realize point-to-multipoint transmission.
S4：The local side apparatus OLT device physical connection of optical splitter and GPON networks.
OLT device is important local side apparatus, and the function that it is realized is：1st, it is connected with front end convergence-level with netting twine, is converted
Into optical signal, interconnected with the optical splitter of simple optical fiber and user terminal.2nd, the control, management, ranging to ustomer premises access equipment ONU are realized
Etc. function.3rd, OLT device is also the equipment of photoelectric integral as ONU equipment.OLT device centre computer room, it can see
Work is a L2 interchanger or L3 multi-layer switches.
At OLT device end, configuration AC equipment is managed concentratedly and controlled to OLT device.Wireless controller (Wir eless
Access Point Controller) it is a kind of network equipment, wireless AP devices are controlled for centralization, are a wireless networks
The core of network, is responsible for all wireless aps in wireless network, and AP management is included：Issue configuration, modification relevant configuration ginseng
Number, radio-frequency intelligent management, access security control etc..
There is provided concentrate forwarding and locally two kinds of data processing methods of forwarding in data processing for the present embodiment.
The characteristics of concentrating forwarding：Forwarding networking is concentrated, individually a tunnel data business, institute are set up between AP and AC
Some data services are all forwarded by AC, so AC load can be also higher than the larger bandwidth requirement to AC interfaces.By
In higher to bandwidth requirement, so concentrating the manageable AP quantity of AC of forwarding also can be by a definite limitation.In addition, when tunnel turns
When sending now obstructed or packet loss phenomenon, Network Search failure difficulty is higher than locally forwarding.The advantage for concentrating forwarding is for existing
Net is changed smaller.
The characteristics of local forwarding：Large-scale network-estabilishing, the advantage master of this networking mode are carried out using the local pass-through modes of thin AP
If forwarding share tasks to AP business datum, AC pressure is reduced, network overall throughput is improved.
The wireless broadband network of whole " wireless city " is entirely in the building method of " wireless city " that the present embodiment is provided
Pass through existing resource construction., can be light by covering a wide range for this method construction " wireless city " wireless signal
The network coverage of remote districts is realized, as long as wireless coverage can be achieved in the place for having video monitoring camera, entirely without line width
Management with net is implemented by city video monitoring system, and user can realize wireless networking in the range of wireless signal covering.
The present embodiment, which merges two systems, to be built, and makes full use of the front end infrastructure of city video monitoring system, such as
Consumer unit, vertical rod, outdoor equipment case etc. merge shared, build into unified Internet of Things public domain access terminal, not only
Video, WiFi, which can be accessed, can also access the internet of things service of other all kinds public service properties, thoroughly solve " wireless
The problems such as covering in the construction of city " is not enough, network quality is poor.On the other hand, due to share video system infrastructure and
Bearer network, can reduce the input cost at initial stage of " wireless city " construction, by sharing O＆M with city video monitoring system
Service, cuts operating costs, and promotes " wireless city " Fast Construction and long-term operation.
Although the present invention is disclosed above with preferred embodiment, the scope that the present invention is implemented is not limited to.Any
The those of ordinary skill in field, it is when a little improvement can be made, i.e., every according to this hair in the invention scope for not departing from the present invention
Bright done equal improvement, should be the scope of the present invention and is covered.
Claims (7)
1. a kind of method that Depending on city video monitoring system builds " wireless city ", it is characterised in that methods described is included such as
Lower step：
S1：Using the networking equipment of existing city video monitoring system, at the camera of the city video monitoring system front end
Set up wireless AP devices；
S2：The headend equipment ONU equipment physical connection of the wireless AP devices and GPON networks；
S3：The ONU equipment is carried out data transmission and connected by the optical fiber transmission line of the shared city video monitoring system
Optical splitter；
S4：The local side apparatus OLT device physical connection of the optical splitter and the GPON networks.
2. the method as described in claim 1, it is characterised in that in the step S1, the wireless AP devices are erected at described
In the vertical rod of city video monitoring system camera, the consumer unit and equipment box of the camera are shared.
3. the method as described in claim 1, it is characterised in that in the step S2, increases when disposing the wireless AP devices
If the ONU equipment individual transmission, the physical isolation of video data stream and " wireless city " data flow is carried out.
4. the method as described in claim 1, it is characterised in that in the step S2, the GPON networks share the city
The ONU equipment of video monitoring system, a newly-increased VLL enters between the OLT device and every wireless AP devices
Row logic isolation.
5. method as claimed in claim 4, it is characterised in that in the step S2, " wireless city " business and former video industry
Business carries out traffic differentiation by dividing different VLAN tags.
6. the method as described in claim 1, it is characterised in that in the step S4, at the OLT device end, configuration AC is set
It is standby.
7. the method as described in claim 1, it is characterised in that there is provided concentrate forwarding and this in data processing for methods described
Ground forwards two kinds of data processing methods.
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