CN110086772A - A kind of acquisition methods and system of monitor video - Google Patents
A kind of acquisition methods and system of monitor video Download PDFInfo
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- CN110086772A CN110086772A CN201910209619.6A CN201910209619A CN110086772A CN 110086772 A CN110086772 A CN 110086772A CN 201910209619 A CN201910209619 A CN 201910209619A CN 110086772 A CN110086772 A CN 110086772A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1013—Network architectures, gateways, control or user entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
Abstract
The embodiment of the invention provides a kind of acquisition methods of monitor video and systems, which comprises third-party platform sends monitor video acquisition request and TCP listening port information to view networked monitoring and managing platform；Depending on networked monitoring and managing platform according to the monitor video acquisition request to view networked server request target resource, and TCP listening port information is sent to view networked server；Third-party platform with depending on networked server establish TCP connection；The target resource is transferred from monitoring device depending on networked server, and target resource is sent to third-party platform by Transmission Control Protocol.In the above method, monitoring management platform actively establishes connection with third-party platform, reduce network state it is bad when a possibility that connecting fault occurs；Also, is carried out data transmission between monitoring management platform and third-party platform by Transmission Control Protocol, ensure that the reliability of data transmission, and then improve reception video quality, improve receiving efficiency.
Description
Technical field
The present invention relates to view networking technology fields, more particularly to the acquisition methods and system of a kind of monitor video.
Background technique
When third-party platform positioned at internet obtains monitor video in the monitoring device from view networking, in internet net
In the case that network is not in good state, can be caused due to Network Packet Loss video pictures it is imperfect, display it is abnormal；Equally, video
It will appear out-of-order problem, the data that may first send arrive later recipient than the data of rear transmission.And it is located at third-party platform
Staff due to not receiving correct video data, may repetitive requests send video data, to cause network
The lasting occupancy in channel, efficiency of transmission further decrease.Meanwhile depending on the monitoring device video resource of networking be by view networking clothes
It is engaged in what device was sent, third-party platform takes request monitoring management platform to return to interface message when with connecting depending on networked server
Mode be attached.In the case where Internet is not in good state, it equally will appear request and return information transmission be unsmooth
The case where, cause third-party platform that can not connect with depending on networked server.
It can be seen that third-party platform is bad from the video quality received depending on networking at present, and obtain monitor video
Efficiency is lower.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
The acquisition methods and system of a kind of monitor video to solve the above problems.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of acquisition methods of monitor video, are applied to monitoring
The acquisition system of video, the system comprises: third-party platform, view networked monitoring and managing platform, view networking positioned at internet
Server, the view networked monitoring and managing platform are communicated to connect with the third-party platform, the view networked server respectively, institute
The method of stating includes:
Third-party platform positioned at internet sends monitor video acquisition request and described to view networked monitoring and managing platform
The TCP listening port information of third-party platform；
The view networked monitoring and managing platform according to the monitor video acquisition request to view networked server request target
Resource, and the TCP listening port information is sent to the view networked server；
The view networked server sends connection request to the third-party platform according to the TCP listening port information；
The third-party platform establishes TCP connection depending on networked server with described；
It is described to transfer the target resource from monitoring device depending on networked server, and the target resource is passed through into TCP
Agreement is sent to the third-party platform.
It is optionally, described that the target resource is sent to the third-party platform by Transmission Control Protocol depending on networked server,
Include:
It is described that the target resource is split as by least one message segment according to Transmission Control Protocol depending on networked server, and be institute
State each byte setting identification number in message segment；
The data packet that the message segment is encapsulated as to Transmission Control Protocol format depending on networked server, and by the data packet
It is sent to the corresponding TCP port of the third-party platform.
Optionally, after the data packet is sent to the corresponding TCP port of the third-party platform, further includes:
The third-party platform receives the data packet of the Transmission Control Protocol format, and by the resolve packet be it is described extremely
A few message segment；
The third-party platform reads the identification number for the byte for including in the message segment, and sends an acknowledgement message to institute
View networked server is stated, includes the identification number in the confirmation message；
It is described receive the confirmation message depending on networked server in the case where, the view networked server is according to
Identification number sends next data packet to the third-party platform；
It is described do not receive the confirmation message depending on networked server in the case where, it is described to be set depending on networked server
After period, the data packet of the Transmission Control Protocol format is retransmitted.
Optionally, the third-party platform establishes TCP connection depending on networked server with described, comprising:
The third-party platform monitors the corresponding port of the TCP port number；
When listening to the port has from the connection request of the view networked server, the third-party platform receives
The connection request establishes TCP connection depending on networked server with described；
Optionally, after transferring the target resource from monitoring device depending on networked server described, further includes:
If transferring target resource failure, described transfer depending on networked server to monitoring management platform return is unsuccessfully believed
Breath；
The failure information of transferring is sent to the third-party platform by the monitoring management platform.
A kind of acquisition system of monitor video is also disclosed in the embodiment of the present invention, the system comprises: positioned at the of internet
Tripartite's platform, view networked monitoring and managing platform, view networked server, the view networked monitoring and managing platform respectively with the third
Fang Pingtai, view networked server communication connection；
The third-party platform includes:
First request sending module, for sending monitor video acquisition request and described the to view networked monitoring and managing platform
The TCP listening port information of tripartite's platform；
It is described to include: depending on networked monitoring and managing platform
Second request sending module, for being provided according to the monitor video acquisition request to view networked server request target
Source, and the TCP listening port information is sent to the view networked server；
It is described to include: depending on networked server
Connection request sending module is connected for being sent according to the TCP listening port information to the third-party platform
Request；
The third-party platform includes:
TCP connection establishes module, for establishing TCP connection depending on networked server with described；
It is described to include: depending on networked server
Target resource sending module leads to for transferring the target resource from monitoring device, and by the target resource
It crosses Transmission Control Protocol and is sent to the third-party platform.
Optionally, the target resource sending module depending on networked server includes:
Submodule is split, for the target resource to be split as at least one message segment according to Transmission Control Protocol, and is described
Identification number is arranged in each byte in message segment；
Encapsulation and sending submodule, for the message segment to be encapsulated as to the data packet of Transmission Control Protocol format, and by the number
The corresponding TCP port of the third-party platform is sent to according to packet.
Optionally, the third-party platform further include:
Reception and parsing module, are institute for receiving the data packet of the Transmission Control Protocol format, and by the resolve packet
State at least one message segment；
Confirmation message sending module for reading the identification number for the byte for including in the message segment, and sends confirmation
Message includes the identification number in the confirmation message to the view networked server；
The view networked server further include:
Next packet sending module, in the case where receiving the confirmation message, according to the mark sequence
Number next data packet is sent to the third-party platform；
Module is retransmitted, for after set period of time, retransmitting in the case where not receiving the confirmation message
The data packet of the Transmission Control Protocol format.
Optionally, the TCP connection of the third-party platform establishes module, comprising:
Submodule is monitored, for monitoring the corresponding port of the TCP port number；
TCP connection setting up submodule, for being asked from the connection depending on networked server listening to the port and have
When asking, receive the connection request, establishes TCP connection depending on networked server with described.
Optionally, the view networked server further include:
Failure information return module, if the view networked server is to the monitoring for transferring target resource failure
Failure information is transferred in management platform return；
The monitoring management platform further include:
Failure information sending module, for the failure information of transferring to be sent to the third-party platform.
The embodiment of the present invention includes following advantages:
The acquisition methods and system of monitor video provided in an embodiment of the present invention, from be located at internet third-party platform to
The TCP listening port information of monitor video acquisition request and the third-party platform is sent depending on networked monitoring and managing platform；Depending on connection
Net monitoring management platform, to view networked server request target resource, and TCP is monitored according to the monitor video acquisition request
Port information is sent to view networked server；It is sent out according to the TCP listening port information to third-party platform depending on networked server
Send connection request；Third-party platform with depending on networked server establish TCP connection；Institute is transferred from monitoring device depending on networked server
Target resource is stated, and target resource is sent to third-party platform by Transmission Control Protocol.In the above-mentioned methods, monitoring management platform
Connection actively is established with third-party platform, reduces the transmission process of a port information, it is bad to thereby reduce network state
A possibility that Shi Fasheng connecting fault；Also, data biography is carried out by Transmission Control Protocol between monitoring management platform and third-party platform
It is defeated, because Transmission Control Protocol, which has, receives the mechanism such as confirmation and Retransmission timeout, it ensure that the reliability of data transmission, and then improve
Video quality is received, receiving efficiency is improved.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of the invention；
Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway；
Fig. 5 is a kind of step flow chart of monitor video acquisition methods of the invention；
Fig. 6 is the structural block diagram that a kind of monitor video of the invention obtains system.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
Video flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
Switching), Streaming demand is met using Packet Switching depending on networking technology.Has grouping depending on networking technology
Flexible, the simple and low price of exchange, is provided simultaneously with the quality and safety assurance of circuit switching, it is virtually electric to realize the whole network switch type
The seamless connection of road and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (or
National net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine mould, are forwarded: 1) port if meeting the following conditions
It is less than to send caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, including
The operation such as initialization, read-write to hard disk；CPU module 203 is mainly responsible between access switch, terminal (not shown)
Protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 204 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, are divided to two kinds of situations in embodiments of the present invention:
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
| DA | SA | Reserved | Payload | CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
Based on the above-mentioned characteristic of view networking, one of the core concepts of the embodiments of the present invention is proposed, it then follows regard the association of networking
View, after receiving the monitor video acquisition request of third-party platform, monitoring management platform to view networked server request target
Resource, and the TCP listening port information is sent to the view networked server.
Referring to Fig. 5, a kind of step flow chart of the acquisition methods embodiment of monitor video of the invention, this method are shown
The acquisition system that can be applied to monitor video, the system comprises: third-party platform, view networking monitoring pipe positioned at internet
Platform, view networked server, the view networked monitoring and managing platform respectively with the third-party platform, the view the Internet services
Device communication connection.
In the acquisition methods of existing monitor video, third-party platform is obtained to monitoring management platform transmission monitor video
After taking request, monitoring management platform creation udp port, which is simultaneously monitored, waits third-party platform connection, third-party platform connection it is upper it
Afterwards, video data is sent to client by udp protocol by monitoring management platform.There are two disadvantages for this method, firstly, prison
Keyholed back plate platform and third-party platform belong to passive connection, i.e., monitoring management platform, which needs to monitor, waits third-party platform connection,
The connection request of third-party platform is only received, communication connection could be established.In the case where network state is bad, Wu Faji
When receive connection request, also can not just establish connection in time, cause monitor video obtain efficiency it is low；Secondly as UDP
The unreliability of transport protocol itself can using udp protocol transmitting video data in the case where Internet is not in good state
Network Packet Loss can be will cause, the imperfect display of video pictures is abnormal；It equally will appear random ordering using udp protocol transmission data packet
Problem, the data that may first send arrive later recipient than the data of rear transmission.Based on the above issues, propose that the present invention is implemented
The monitor video acquisition methods of example.
The acquisition methods of the monitor video can specifically include following steps:
Step 501, the third-party platform positioned at internet is asked to depending on the transmission monitor video acquisition of networked monitoring and managing platform
It sums the TCP listening port information of the third-party platform.
In embodiments of the present invention, third-party platform can be the GB/T28181 national standard platform positioned at internet.The national standard
Platform is located in public safety video monitoring networking system, the system integrated application video and audio monitoring, communication, computer network,
The technologies such as system set can be realized interconnection, intercommunication, cross complaint between distinct device and system.Third-party platform, such as national standard platform
When needing to inquire the monitor video for the monitoring device being located in view networking, need to the monitoring management platform hair for being located at view networking
Send request.It wherein, may include the IP address and device number for needing the monitoring device inquired in the monitor video acquisition request
Etc. information.
Monitoring management platform depending on networking is divided into front end displaying and back-end services, front end also known as Tang Gula, is responsible for whole prison
Control the showing of catalogue, monitor video are transferred, regard the various configurations of networking monitoring network management dispatching platform.Back-end services also known as
MServer, unified management and the national standard (GB/T28181) for being responsible for the monitoring device of all accesses in entire view networking are flat
The docking service of platform monitoring system.
Since monitoring management platform passively connects third-party platform and uses udp protocol transmitting, monitoring video in the prior art
Effect is poor, therefore actively connects third-party platform using monitoring management platform in the embodiment of the present invention and carried out using Transmission Control Protocol
The mode of transmission.So in this step, third-party platform needs to pat to monitoring pipe when sending monitor video acquisition request
Platform sends the TCP listening port information of oneself simultaneously, so that monitoring management platform actively establishes TCP connection with third-party platform.
Third-party platform carries the port information of itself simultaneously in monitor video acquisition request, does not need monitoring management platform to third
Fang Pingtai sends the port information of oneself, and monitoring management platform actively can establish connection with third-party platform, reduces primary
The transmission process of port information, so reduce network state it is bad when occur connecting fault a possibility that.
In a possible embodiment of the invention, the TCP port information includes the end TCP of the third-party platform
The IP address of slogan and the third-party platform.
In ICP/IP protocol, Transmission Control Protocol belongs to transport layer, is erected at IP layers, i.e., on network layer jointly.And IP layers of master
What is be responsible for is data packet transmission among the nodes, and node here is the network equipment, such as third-party platform and view networking
Server.Because data is only responsible for for IP layers to be sent to node, and it cannot distinguish between different application above, so TCP is on its basis
On joined the information of port, what port then identified is an application on a node.So third-party platform will be established
One TCP connection needs to inform the TCP port number and IP address of other side oneself.
Step 502, the view networked monitoring and managing platform according to the monitor video acquisition request to view networked server
Request target resource, and the TCP listening port information is sent to the view networked server.
In embodiments of the present invention, monitoring management platform parses the monitor video acquisition request, requested in include
The IP address and device number of monitoring device.Further, requested monitoring device is navigated to by the IP address and device number
The view networked server information connected, monitoring management platform is to the view networked server request target resource.Meanwhile also will
TCP listening port information is sent to view networked server, establishes connection depending on networked server and third-party platform to facilitate.
Step 503, the view networked server sends to the third-party platform according to the TCP listening port information and connects
Connect request.
Specifically, depending on networked server according to the IP address of the third-party platform in the TCP listening port information to
Network node where tripartite's platform sends connection request, then upward according to TCP port number in the TCP listening port information
The TCP port for stating network node sends connection request.
Step 504, the third-party platform establishes TCP connection depending on networked server with described.
Third-party platform establishes TCP connection after receiving connection request, with depending on networked server.
In a possible embodiment of the invention, step 504 includes following sub-step 5041- sub-step 5042:
Sub-step 5041, the third-party platform monitor the corresponding port of the TCP port number.
Specifically, the process that third-party platform establishes TCP monitoring socket, which may is that, calls the socket of socket function creation
Word binds the socket to above-mentioned TCP port number, and listen function is called to monitor connection request.At this point, socket is being supervised
It listens, and has been ready to receive connection.
Sub-step 5042, when listening to the port has from the connection request of the view networked server, described the
Tripartite's platform receives the connection request, establishes TCP connection depending on networked server with described.
Third-party platform receives connection after listening to connection request, using accept function, thus with view the Internet services
Device establishes TCP connection by TCP port.Third-party platform can disappear to the response for having received connection is sent depending on networked server
Breath.
Step 505, described to transfer the target resource from monitoring device depending on networked server, and by the target resource
The third-party platform is sent to by Transmission Control Protocol.
The monitor video acquisition request is parsed depending on networked server, obtains the target monitoring equipment for including in request letter
Breath, and then target resource is transferred from target monitoring equipment, and the target resource is sent to the third by Transmission Control Protocol
Fang Pingtai.
TCP and UDP belongs to transport layer, is erected on IP layers (network layers) jointly.Because IP layers are only responsible for data
It is sent to node, and cannot distinguish between different application above, so TCP and udp protocol joined the information of port on its basis,
Port-mark is one on node application.In addition to increasing port information, udp protocol is substantially with regard to the not number to IP layers
According to any processing of progress.And Transmission Control Protocol is also added into more complicated transmission control, such as the data transmission window slided
(Slice Window), and confirmation and retransmission mechanism are received, to reach the reliable transmission of data.Regardless of application layer it is seen that
How a stable TCP data stream, what is transmitted below is all IP data packet one by one, needs to be counted by Transmission Control Protocol
According to recombination.
In a possible embodiment of the invention, step 505 includes following sub-step 5051- sub-step 5052:
Sub-step 5051, it is described that the target resource is split as by least one report according to Transmission Control Protocol depending on networked server
Literary section, and identification number is set for each byte in the message segment.
TCP layer is located on IP layers, the transport layer under application layer.Application layer depending on networked server is sent out to TCP layer
Target resource is sent, the form of the target resource is the data flow indicated for transmit between netting, octet.TCP tears data flow open
It is divided into the message segment of suitable length, wherein the data link layer for the network that the length of the message segment is connected by the computer is most
The limitation of big transmission unit (MTU).TCP just gives one serial number of each byte-identifier, while serial number to guarantee that packet loss does not occur
Also ensure the received in-order for being transmitted to the data packet of third-party platform.
Sub-step 5052, the data packet that the message segment is encapsulated as to Transmission Control Protocol format depending on networked server, and will
The data packet is sent to the corresponding TCP port of the third-party platform.
The message segment for splitting and identifying is transmitted to IP layers by the TCP layer depending on networked server, by it come by network by data
Packet sends the TCP layer of third-party platform to.
In a possible embodiment of the invention, after sub-step 5052, further comprising the steps of A1- step
A4:
Step A1, the third-party platform receives the data packet of the Transmission Control Protocol format, and is by the resolve packet
At least one described message segment.
Step A2, the third-party platform read the identification number for the byte for including in the message segment, and send confirmation
Message includes the identification number in the confirmation message to the view networked server；
Step A3, it is described receive the confirmation message depending on networked server in the case where, the view networked server
Next data packet is sent to the third-party platform according to the identification number；
Step A4, it is described do not receive the confirmation message depending on networked server in the case where, the view the Internet services
Device retransmits the data packet of the Transmission Control Protocol format after set period of time.
In embodiments of the present invention, the TCP layer of third-party platform removes the encapsulated layer of data packet after receiving data packet
Fall, separate message segment one by one, then read the identification number for the byte for including in message segment, TCP layer is to having had successfully received
Byte send back to a corresponding confirmation (ACK), include the mark sequence of the last character joint number received in the confirmation message
Number.TCP layer depending on networked server after receiving confirmation message, to third-party platform send from identification number be this last
The character data packet that the Next Sequence of a byte number starts.If depending on networked server in the reasonable round-trip delay time
(RTT) confirmation is not received in, which can be preset according to the actual situation, then corresponding data will be weighed
It passes.In addition, whether TCP is wrong come inspection data with a verification and function；It will calculate and verify when sending and receiving.
In a possible embodiment of the invention, further comprising the steps of A5-A6 after step 505:
Step A5, if transferring target resource failure, the view networked server is returned to the monitoring management platform and is adjusted
Take failure information.
If since the communication connection failure of target monitoring equipment, the hardware fault of target monitoring equipment or software fault etc. are led
It causes view networked server to transfer target resource to fail, in order to make what monitoring management platform learnt target resource in time to transfer progress,
And the fault condition that target monitoring equipment occurs, failure information is transferred to the return of monitoring management platform depending on networked server.It should
It may include the reason of transferring unsuccessfully in information.So that monitoring management platform calls staff to tie up in time to failure problems
It repairs.
The failure information of transferring is sent to the third-party platform by step A6, the monitoring management platform.
In order to make what third-party platform learnt target resource in time to transfer success or failure information, avoid third-party platform unnecessary
Delay cost, this is also transferred failure information is sent to third-party platform to monitoring management platform simultaneously.
In conclusion in embodiments of the present invention, the third-party platform positioned at internet is to view networked monitoring and managing platform
Send the TCP listening port information of monitor video acquisition request and the third-party platform；Depending on networked monitoring and managing platform according to
The monitor video acquisition request is sent to view connection to view networked server request target resource, and by TCP listening port information
Network server；Connection request is sent to third-party platform according to the TCP listening port information depending on networked server；Third party is flat
Platform with depending on networked server establish TCP connection；Transfer the target resource from monitoring device depending on networked server, and by target
Resource is sent to third-party platform by Transmission Control Protocol.In the above-mentioned methods, monitoring management platform is actively established with third-party platform
Connection, reduce the transmission process of a port information, thereby reduce network state it is bad when occur connecting fault possibility
Property；Also, is carried out data transmission between monitoring management platform and third-party platform by Transmission Control Protocol, connect because Transmission Control Protocol has
The mechanism such as confirmation and Retransmission timeout are received, ensure that the reliability of data transmission, and then improve reception video quality, improves and connects
It produces effects rate.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 6, the structural block diagram that a kind of monitor video of the invention obtains system is shown, which includes: position
Third-party platform 601, view networked monitoring and managing platform 602, view networked server 603 in internet, the view networking monitoring
Platform 602 is managed to communicate to connect with the third-party platform 601, the view networked server 603 respectively；
The third-party platform 601 includes:
First request sending module 6011, for sending monitor video acquisition request and institute to view networked monitoring and managing platform
State the TCP listening port information of third-party platform；
It is described to include: depending on networked monitoring and managing platform 602
Second request sending module 6021, for requesting mesh to view networked server according to the monitor video acquisition request
Resource is marked, and the TCP listening port information is sent to the view networked server；
It is described to include: depending on networked server 603
Connection request sending module 6031, for being sent according to the TCP listening port information to the third-party platform
Connection request；
The third-party platform 601 includes:
TCP connection establishes module 6012, for establishing TCP connection depending on networked server with described；
It is described to include: depending on networked server 603
Target resource sending module 6032 is provided for transferring the target resource from monitoring device, and by the target
Source is sent to the third-party platform by Transmission Control Protocol.
Optionally, the target resource sending module 6032 depending on networked server 603 includes:
Submodule is split, for the target resource to be split as at least one message segment according to Transmission Control Protocol, and is described
Identification number is arranged in each byte in message segment；
Encapsulation and sending submodule, for the message segment to be encapsulated as to the data packet of Transmission Control Protocol format, and by the number
The corresponding TCP port of the third-party platform is sent to according to packet.
Optionally, the third-party platform 601 further include:
Reception and parsing module, are institute for receiving the data packet of the Transmission Control Protocol format, and by the resolve packet
State at least one message segment；
Confirmation message sending module for reading the identification number for the byte for including in the message segment, and sends confirmation
Message includes the identification number in the confirmation message to the view networked server；
The view networked server 603 further include:
Next packet sending module, in the case where receiving the confirmation message, according to the mark sequence
Number next data packet is sent to the third-party platform；
Module is retransmitted, for after set period of time, retransmitting in the case where not receiving the confirmation message
The data packet of the Transmission Control Protocol format.
Optionally, the TCP connection of the third-party platform 601 establishes module 6012, comprising:
Submodule is monitored, for monitoring the corresponding port of the TCP port number；
TCP connection setting up submodule, for being asked from the connection depending on networked server listening to the port and have
When asking, receive the connection request, establishes TCP connection depending on networked server with described.
Optionally, the view networked server 603 further include:
Failure information return module, if the view networked server is to the monitoring for transferring target resource failure
Failure information is transferred in management platform return；
The monitoring management platform further include:
Failure information sending module, for the failure information of transferring to be sent to the third-party platform.
The acquisition system of monitor video provided in an embodiment of the present invention, the third-party platform from being located at internet are networked to view
The TCP listening port information of monitoring management platform transmission monitor video acquisition request and the third-party platform；Depending on networking monitoring
Platform is managed according to the monitor video acquisition request to view networked server request target resource, and TCP listening port is believed
Breath is sent to view networked server；It is sent and is connected to third-party platform according to the TCP listening port information depending on networked server
Request；Third-party platform with depending on networked server establish TCP connection；The target is transferred from monitoring device depending on networked server
Resource, and target resource is sent to third-party platform by Transmission Control Protocol.In the above-mentioned methods, monitoring management platform actively with
Third-party platform establishes connection, reduces the transmission process of a port information, thereby reduce network state it is bad when generation
A possibility that connecting fault；Also, carried out data transmission between monitoring management platform and third-party platform by Transmission Control Protocol, because
Have for Transmission Control Protocol and receive the mechanism such as confirmation and Retransmission timeout, ensure that the reliability of data transmission, and then improves reception view
Frequency quality, improves receiving efficiency.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
It above to a kind of acquisition methods and system of monitor video provided by the present invention, is described in detail, herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention；At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (10)
1. a kind of acquisition methods of monitor video, which is characterized in that applied to the acquisition system of monitor video, the system packet
It includes: third-party platform, view networked monitoring and managing platform, view networked server positioned at internet, the view networked monitoring and managing
Platform is communicated to connect with the third-party platform, the view networked server respectively, which comprises
Third-party platform positioned at internet sends monitor video acquisition request and the third to view networked monitoring and managing platform
The TCP listening port information of Fang Pingtai；
The view networked monitoring and managing platform according to the monitor video acquisition request to view networked server request target resource,
And the TCP listening port information is sent to the view networked server；
The view networked server sends connection request to the third-party platform according to the TCP listening port information；
The third-party platform establishes TCP connection depending on networked server with described；
It is described to transfer the target resource from monitoring device depending on networked server, and the target resource is passed through into Transmission Control Protocol
It is sent to the third-party platform.
2. the method according to claim 1, wherein described pass through the target resource depending on networked server
Transmission Control Protocol is sent to the third-party platform, comprising:
It is described that the target resource is split as by least one message segment according to Transmission Control Protocol depending on networked server, and be the report
Identification number is arranged in each byte in literary section；
The data packet that the message segment is encapsulated as to Transmission Control Protocol format depending on networked server, and the data packet is sent
To the corresponding TCP port of the third-party platform.
3. according to the method described in claim 2, it is characterized in that, the data packet is sent to the third-party platform pair
After the TCP port answered, further includes:
The third-party platform receives the data packet of the Transmission Control Protocol format, and is described at least one by the resolve packet
A message segment；
The third-party platform reads the identification number for the byte for including in the message segment, and sends an acknowledgement message to the view
Networked server includes the identification number in the confirmation message；
It is described receive the confirmation message depending on networked server in the case where, the view networked server is according to the mark
Serial number sends next data packet to the third-party platform；
It is described do not receive the confirmation message depending on networked server in the case where, the view networked server is in setting time
After section, the data packet of the Transmission Control Protocol format is retransmitted.
4. according to the method described in claim 2, it is characterized in that, the third-party platform and the view networked server are established
TCP connection, comprising:
The third-party platform monitors the corresponding port of the TCP port number；
When listening to the port has from the connection request of the view networked server, described in the third-party platform receiving
Connection request establishes TCP connection depending on networked server with described.
5. the method according to claim 1, wherein institute is transferred from monitoring device depending on networked server described
After stating target resource, further includes:
It is described to transfer failure information to monitoring management platform return depending on networked server if transferring target resource failure；
The failure information of transferring is sent to the third-party platform by the monitoring management platform.
6. a kind of acquisition system of monitor video, which is characterized in that the system comprises: positioned at internet third-party platform,
Depending on networked monitoring and managing platform, view networked server, the view networked monitoring and managing platform respectively with the third-party platform, institute
State view networked server communication connection；
The third-party platform includes:
First request sending module, for sending monitor video acquisition request and the third party to view networked monitoring and managing platform
The TCP listening port information of platform；
It is described to include: depending on networked monitoring and managing platform
Second request sending module, for according to the monitor video acquisition request to view networked server request target resource,
And the TCP listening port information is sent to the view networked server；
It is described to include: depending on networked server
Connection request sending module, for sending connection request to the third-party platform according to the TCP listening port information；
The third-party platform includes:
TCP connection establishes module, for establishing TCP connection depending on networked server with described；
It is described to include: depending on networked server
Target resource sending module passes through TCP for transferring the target resource from monitoring device, and by the target resource
Agreement is sent to the third-party platform.
7. system according to claim 6, which is characterized in that the target resource sending module packet of the view networked server
It includes:
Submodule is split, for the target resource to be split as at least one message segment according to Transmission Control Protocol, and is the message
Identification number is arranged in each byte in section；
Encapsulation and sending submodule, for the message segment to be encapsulated as to the data packet of Transmission Control Protocol format, and by the data packet
It is sent to the corresponding TCP port of the third-party platform.
8. system according to claim 7, which is characterized in that the third-party platform further include:
Receive and parsing module, for receiving the data packet of the Transmission Control Protocol format, and by the resolve packet be it is described extremely
A few message segment；
Confirmation message sending module for reading the identification number for the byte for including in the message segment, and sends confirmation message
It include the identification number in the confirmation message to the view networked server；
The view networked server further include:
Next packet sending module, in the case where receiving the confirmation message, according to the identification number to
The third-party platform sends next data packet；
Module is retransmitted, in the case where not receiving the confirmation message, after set period of time, described in retransmission
The data packet of Transmission Control Protocol format.
9. system according to claim 7, which is characterized in that the TCP connection of the third-party platform establishes module, packet
It includes:
Submodule is monitored, for monitoring the corresponding port of the TCP port number；
TCP connection setting up submodule, for listen to the port have from it is described view networked server connection request when,
Receive the connection request, establishes TCP connection depending on networked server with described.
10. system according to claim 6 is it is characterized in that, the view networked server further include:
Failure information return module, if the view networked server is to the monitoring management for transferring target resource failure
Failure information is transferred in platform return；
The monitoring management platform further include:
Failure information sending module, for the failure information of transferring to be sent to the third-party platform.
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