CN110460878B

CN110460878B - Switching method and device of video communication link

Info

Publication number: CN110460878B
Application number: CN201910657375.8A
Authority: CN
Inventors: 闫治波; 方小帅; 李云鹏; 沈军
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2022-01-11
Anticipated expiration: 2039-07-19
Also published as: CN110460878A

Abstract

The embodiment of the invention provides a method and a device for switching a video communication link, wherein the method comprises the following steps: the hybrid network scheduling server generates a flow regulation request according to the switching request; the hybrid network scheduling server judges the type of the target server by adopting the identifier of the target server; when the type is the cooperative server, the hybrid network scheduling server adopts a first communication link to send a flow regulation request to a target server; when the type is an internet server, the hybrid network scheduling server adopts a second communication link to send a flow regulation request to a target server; the second communication link is a communication link of a transmission protocol adapted to the Ethernet; the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server, so that when monitoring resources repeatedly exist in the video network and the Internet, the requirement that a user autonomously decides to use a certain link for playing is met, and the stability of stream scheduling and the experience of the user are improved.

Description

Switching method and device of video communication link

Technical Field

The present invention relates to the field of data processing technologies, and in particular, to a method and an apparatus for switching a video communication link, a terminal, and a computer-readable storage medium.

Background

The hybrid network can access video resources of the video network and video resources of the Internet, and the video resources from the protocol conversion server and/or the video servers of the Internet are scheduled and pulled by realizing methods of using video protocol stream modulation and SIP protocol INVITE stream modulation.

The video networking is an important milestone for network development, is a higher-level form of the internet, is a real-time network, can realize real-time transmission of full-network high-definition monitoring videos which cannot be realized by the internet at present, pushes a plurality of internet applications to high-definition monitoring videos, and finally realizes no distance in the world and realizes that the distance between people in the global range is only one screen.

At present, for resources of a coordination server or an internet server which repeatedly exist, a video communication link for selecting a push code is complicated, so that the code stream is pushed slowly, a playing picture is easy to be jammed in the aspect of monitoring resource scheduling, the success rate of the existing scheduling mode is low, and the process of selecting the link by a user in a self-defining mode is complicated, so that the user experience is influenced.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a switching method of a video communication link, a switching apparatus of a video communication link, a terminal, and a computer-readable storage medium that overcome or at least partially solve the above problems.

The embodiment of the invention also discloses a switching method of a video communication link, which is applied to the scheduling of monitoring video code streams between servers, wherein the servers comprise a protocol conversion server based on video networking communication, an internet server based on Ethernet communication and a hybrid network scheduling server which is respectively connected with the protocol conversion server and the internet server through a unique communication link, the communication link is used for transmitting the monitoring video code streams, and the method comprises the following steps:

when the hybrid network scheduling server receives a switching request aiming at a communication link, a flow adjusting request is generated according to the switching request, wherein the flow adjusting request has an identifier of a target server;

the hybrid network scheduling server adopts the identifier of the target server to judge the type of the target server;

when the type is the coordination server, the hybrid network scheduling server sends the stream modulation request to the target server by adopting a first communication link; wherein the first communication link is a communication link adapted to a transport protocol of a video networking;

when the type is the internet server, the hybrid network scheduling server sends the stream adjusting request to the target server by adopting a second communication link; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet;

and the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server.

Further, the step of disconnecting the communication link of the current server by the hybrid network scheduling server and receiving the monitoring video code stream fed back by the target server includes:

the hybrid network scheduling server acquires a first network condition of the target server;

the hybrid network scheduling server acquires a second network condition of the current server;

the hybrid network scheduling server compares the first network condition with the second network condition;

and when the first network condition is superior to the second network condition, the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server.

Further, the method further comprises:

when the second network condition is superior to the first network condition, the hybrid network scheduling server inquires whether the user needs to continuously switch the video communication link;

and when the user feedback is switching confirmation, the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server.

Further, the step of comparing the first network condition and the second network condition by the hybrid network scheduling server comprises:

the hybrid network scheduling server extracts a first network speed in the first network condition;

the hybrid network speed server extracts a second network speed in the second network condition;

the hybrid network scheduling server judges whether the first network speed is greater than a second network speed;

if so, the first network condition is better than the second network condition; and if not, the second network condition is superior to the first network condition.

Further, when the hybrid network scheduling server receives a handover request for a video communication link, the step of generating a traffic adjusting request according to the handover request includes:

the hybrid network scheduling server judges whether the target server stores the monitoring video code stream or not;

and if so, generating the flow regulation request according to the switching request.

Further, the step of judging whether the target server stores the monitoring video code stream by the hybrid network scheduling server includes:

the hybrid network scheduling server acquires ID information of the monitoring video code stream, and generates a query request by adopting the ID information, wherein the query request is used for querying whether the monitoring video code stream is stored in the target server;

the hybrid network scheduling server sends the query request to the target server;

the hybrid network scheduling server judges whether the monitoring video code stream is stored in the target server according to the query result fed back by the target server;

and when the query result fed back by the target server indicates that the ID information is stored, the hybrid network scheduling server judges that the monitoring video is stored in the target server.

The embodiment of the invention also discloses a switching device of a video communication link, which is applied to the scheduling of monitoring video code streams between servers, wherein the servers comprise a protocol conversion server based on video networking communication, an internet server based on Ethernet communication, and a hybrid network scheduling server respectively connected with the protocol conversion server and the internet server through a unique communication link, and the communication link is used for transmitting the monitoring video code streams and specifically comprises the following steps:

the system comprises a flow regulation request generation module, a flow regulation request generation module and a flow regulation request generation module, wherein the flow regulation request generation module is used for generating a flow regulation request according to a switching request when receiving the switching request aiming at a communication link, and the flow regulation request has an identifier of a target server;

the server type judging module is used for judging the type of the target server by adopting the identifier of the target server;

a first flow regulation request sending module, configured to send the flow regulation request to the target server by using a first communication link when the type is the coordination server; wherein the first communication link is a communication link adapted to a transport protocol of a video networking;

the second flow regulation request sending module is used for sending the flow regulation request to the target server by adopting a second communication link when the type is the internet server; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet;

and the video code stream receiving module is used for disconnecting the communication link of the current server and receiving the monitoring video code stream fed back by the target server.

Further, the video stream receiving module includes:

a first network condition obtaining submodule, configured to obtain a first network condition of the target server;

a second network condition obtaining submodule, configured to obtain a second network condition of the current server;

the network condition comparison submodule is used for comparing the advantages and disadvantages of the first network condition and the second network condition;

and the code stream acquisition submodule is used for disconnecting the communication link of the current server and receiving the monitoring video code stream fed back by the target server when the first network condition is superior to the second network condition.

The embodiment of the invention also discloses a terminal, which comprises:

one or more processors; and

one or more machine readable media having instructions stored thereon, which when executed by the one or more processors, cause the terminal to perform one or more methods of switching a video communication link according to embodiments of the present invention.

The embodiment of the invention also discloses a computer readable storage medium, which stores a computer program to enable a processor to execute the switching method of the video communication link.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, when receiving a switching request aiming at a communication link, a scheduling server through a hybrid network generates a flow regulation request according to the switching request, wherein the flow regulation request has an identifier of a target server; the hybrid network scheduling server adopts the identifier of the target server to judge the type of the target server; when the type is the coordination server, the hybrid network scheduling server sends the stream modulation request to the target server by adopting a first communication link; wherein the first communication link is a communication link adapted to a transport protocol of a video networking; when the type is the internet server, the hybrid network scheduling server sends the stream adjusting request to the target server by adopting a second communication link; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet; the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server, so that when monitoring resources repeatedly exist in the video network and the Internet, the requirement that a user autonomously decides to play the video code stream by using a certain link is met, and the stability of stream adjustment and the experience of the user are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic networking diagram of a video network of the present invention;

FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;

fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;

fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;

fig. 5 is a flowchart illustrating steps of a method for switching a video communication link according to an embodiment of the present invention;

fig. 6 is a block diagram of a switching device of a video communication link according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The video networking is an important milestone for network development, is a real-time network, can realize real-time transmission of high-definition monitoring videos, and pushes a plurality of Internet applications to high-definition monitoring videos, and high-definition face-to-face.

The video networking adopts a real-time high-definition monitoring video exchange technology, can integrate dozens of services such as high-definition monitoring video conferences, monitoring video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcasting, VOD on demand, television mails, Personal Video Recorder (PVR), intranet (self-made) channels, intelligent monitoring video broadcasting control, information distribution and the like on a system platform, and realizes high-definition quality monitoring video broadcasting through a television or a computer.

To better understand the embodiments of the present invention, the following description refers to the internet of view:

some of the technologies applied in the video networking are as follows:

network Technology (Network Technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face potentially large surveillance video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.

Switching Technology (Switching Technology)

The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time switching platform, can realize the real-time transmission of the whole-network large-scale high-definition monitoring videos which cannot be realized by the existing Internet, and pushes a plurality of network monitoring video applications to high-definition and unification.

Server Technology (Server Technology)

The server technology on the video networking and unified monitoring video platform is different from the traditional server, the streaming media transmission of the video networking and unified monitoring video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified monitoring video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and monitoring video services, the complexity of streaming media processing of video networking and a unified monitoring video platform is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.

Storage Technology (Storage Technology)

The super-high speed storage technology of the unified monitoring video platform adopts the most advanced real-time operating system in order to adapt to the media contents with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media contents are not passed through the server any more, and are directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.

Network Security Technology (Network Security Technology)

The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.

Service Innovation Technology (Service Innovation Technology)

The unified monitoring video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified monitoring video platform to obtain various multimedia monitoring video services in various forms. The unified monitoring video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.

Networking of the video network is as follows:

the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.

As shown in fig. 1, the video network is divided into an access network and a metropolitan network.

The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.

The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.

Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.

The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.

The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.

Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.

The access network part can form a unified monitoring video platform (the part in the dotted circle), and a plurality of unified monitoring video platforms can form a video network; each unified surveillance video platform can be interconnected and intercommunicated through a metropolitan area network and a wide area video network.

1. Video networking device classification

1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: server, exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, code board, memory, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

1.2 wherein the devices of the access network part can be mainly classified into 3 types: node server, access exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, coding board, memory, etc.).

The specific hardware structure of each access network device is as follows:

a node server:

as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.

The access switch:

as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;

wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.

The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;

if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.

The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.

Ethernet protocol conversion gateway：

As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.

Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.

The other modules in the ethernet protocol gateway function similarly to the access switch.

A terminal:

the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.

1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.

2. Video networking packet definition

2.1 Access network packet definition

The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.

As shown in the following table, the data packet of the access network mainly includes the following parts:

DA

SA

Reserved

Payload

CRC

wherein:

the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;

the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);

the reserved byte consists of 2 bytes;

the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;

the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.

2.2 metropolitan area network packet definition

The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.

In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.

As shown in the following table, the data packet of the metro network mainly includes the following parts:

DA

SA

Reserved

label (R)

Payload

CRC

Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.

It should be noted that, in any of the following embodiments, the hybrid network is a hybrid network video sharing application platform. The video sharing application platform based on the hybrid network architecture can support the current mainstream video service function, can realize large-scale real-time communication, and can support the butt joint with other video and data service network platforms. The monitoring resource is supported to be scheduled according to the video networking or by using the national standard GB/T28181 protocol standard, and a monitoring resource scheduling platform (such as a Tanggula monitoring resource scheduling platform) can perform resource scheduling and checking according to two modes; the cooperation server is a monitoring cooperation server (monitoring access service system); the Internet server is a national standard GB/T28181 lower platform; the lower international platform is a monitoring docking server (a third party monitoring international docking platform) which is in cooperative switching access and follows the GB/T28181 standard; the Tanggula monitoring resource scheduling platform is a video networking monitoring and networking management scheduling system; the RTP network transport protocol provides end-to-end delivery services for data with real-time characteristics, such as interactive video audio or analog data under multicast or unicast network services.

The calling method of the video communication link is applied to scheduling of monitoring video code streams among servers, the servers comprise a protocol conversion server based on video networking communication, an internet server based on Ethernet communication and a hybrid network scheduling server which respectively passes through a unique communication link with the protocol conversion server and the internet server, the communication link is used for transmitting the monitoring video code streams, and the method comprises the following steps:

s510, when the hybrid network scheduling server receives an acquisition request aiming at a monitoring video code stream, determining the monitoring video code stream corresponding to the acquisition request;

s520, the hybrid network scheduling server judges whether the monitoring video code stream is stored in the cooperative conversion server and the Internet server;

s530, when the monitoring videos are stored in the coordination server and the Internet server, the hybrid network scheduling server generates a flow adjusting request aiming at the monitoring video code stream and respectively sends the flow adjusting request to the coordination server and the Internet server;

s540, the hybrid network scheduling server determines that a server which firstly feeds back the monitoring video code stream is a target server;

and S550, the hybrid network scheduling server receives the monitoring video code stream based on the communication link of the target server, and disconnects the communication links with other servers.

In the embodiment of the invention, when receiving an acquisition request aiming at a monitoring video code stream, the hybrid network scheduling server determines the monitoring video code stream corresponding to the acquisition request; the hybrid network scheduling server judges whether the monitoring video code stream is stored in the cooperative conversion server and the Internet server; when the monitoring videos are stored in the coordination transfer server and the internet server, the hybrid network scheduling server generates a stream adjusting request aiming at the monitoring video code stream and respectively sends the stream adjusting request to the coordination transfer server and the internet server; the hybrid network scheduling server determines a server which firstly feeds back the monitoring video code stream as a target server; the hybrid network dispatching server receives the monitoring video code stream based on the communication link of the target server and disconnects the communication link with other servers, so that when monitoring resources repeatedly exist in two platforms of a video network and an internet, a flow adjusting request is carried out on a dual communication link, the problem that flow adjustment of a single link cannot be successful sometimes is solved, the stability of flow adjustment is guaranteed, the flow adjusting speed is optimized, and the user experience is better.

Next, a method of calling the video communication link in the present exemplary embodiment will be further described.

As described in step S510 above, when receiving an acquisition request for a surveillance video code stream, the hybrid network scheduling server determines a surveillance video code stream corresponding to the acquisition request;

as an example, the obtaining request received by the hybrid network scheduling server may be an obtaining request for the monitoring video code stream sent by a user through a monitoring platform, the monitoring platform may be a tangula monitoring scheduling platform, and the sending of the obtaining request may be sending through a SIP Protocol (Session Initiation Protocol), where the obtaining request includes identity information of the monitoring video code stream, and the identity information may be ID information of the monitoring video code stream or tag information.

As described in step S520 above, the hybrid network scheduling server determines whether the monitoring video code stream is stored in both the cooperative transmission server and the internet server;

in a preferred embodiment of the present invention, a specific process of "the hybrid network scheduling server determines whether the monitoring video code stream is stored in both the cooperative conversion server and the internet server" in step S520 may be further described with reference to the following description.

The following steps are described: the hybrid network scheduling server acquires ID information of the monitoring video code stream, and generates an inquiry request by adopting the ID information, wherein the inquiry request is used for inquiring whether the monitoring video code stream is stored in the corotation server and the internet server;

as a kind of indication, after confirming the monitoring video code stream, the hybrid network scheduling server extracts ID information in the monitoring video code stream, and uses the ID information as a generation parameter for generating an inquiry request for inquiring whether the monitoring video code stream is stored in the cooperative server and the internet server, so as to generate the inquiry request.

The following steps are described: the hybrid network scheduling server sends the query request to the cooperative transmission server and the Internet server respectively;

it should be noted that, after the collaboration server and the internet server receive the query request, the ID information of the monitoring video code stream is extracted through parsing the query request, then the monitoring video code streams in the storage libraries of the collaboration server and the internet server are matched, and whether the monitoring video code streams with the same ID information are matched is judged, when the monitoring video code streams with the same ID information are matched, the query result with the ID information stored therein is generated, and when the monitoring video code streams with the same ID information are not matched, the query result with the ID information not stored therein is generated.

The following steps are described: the hybrid network scheduling server judges whether the monitoring video code stream exists in the corotation server and the internet server or not according to the query results fed back by the corotation server and the internet server;

it should be noted that, after receiving the query result, the hybrid network scheduling server analyzes the query result to obtain the content in the query result, and the specific result is as follows:

when the inquiry result fed back by the protocol conversion server indicates that the ID information is stored, the hybrid network scheduling server judges that the monitoring video is stored in the protocol conversion server;

and when the query result fed back by the Internet server indicates that the ID information is stored, the hybrid network scheduling server judges that the monitoring video is stored in the Internet server.

As described in step S530 above, when the coordination server and the internet server both store the monitoring video, the hybrid network scheduling server generates a flow adjustment request for the monitoring video code stream, and sends the flow adjustment request to the coordination server and the internet server respectively;

it should be noted that, when the query results fed back by the coordination server and the internet server both have the ID information, the hybrid network scheduling server generates a stream adjustment request for the monitoring video code stream, and sends the stream adjustment request to the coordination server and the internet server according to a corresponding communication protocol, where a video networking transmission protocol is used to send the stream adjustment request to the coordination server; and sending a flow adjusting request to the Internet server by adopting an SIP protocol.

As described in step S540 above, the hybrid network scheduling server determines that the server that feeds back the monitoring video code stream first is the target server;

it should be noted that, after receiving the stream adjustment request, the protocol conversion server and the internet server perform stream pushing of the monitoring video code stream through corresponding protocols, where the protocol conversion server performs stream pushing of the monitoring video code stream by using a video networking protocol; the internet server adopts an RTP (Real-time Transport Protocol) Protocol to push the monitoring video code stream.

It should be noted that, in order to ensure that only the monitoring video code stream sent by one server through the communication link is received at any point in time, the receiving port of the hybrid network traffic regulating server is limited by using a thread locking mechanism, so that the monitoring video code streams received from a plurality of servers at any time have a sequence, and the servers and the communication link can be preferentially selected.

As described in step S550, the hybrid network scheduling server receives the monitoring video code stream based on the communication link of the target server, and disconnects the communication links with other servers.

It should be noted that, after the hybrid network server receives the monitoring video code stream fed back first, because the monitoring video code stream fed back by the other communication links of the thread lock mechanism will be counted into the waiting sequence, after the hybrid network scheduling server determines the target server, the communication link in the waiting sequence is disconnected, wherein before disconnection, the hybrid network scheduling server can generate a stop signal and send the stop signal to the server in the waiting sequence to stop the part of servers from continuing to send the monitoring video code stream. The thread lock mechanism is generally adaptive, the type action of the lock is simplest, and the communication link feedback speed obtained each time is guaranteed to be fastest only by re-competition after unlocking.

In a preferred embodiment of the present invention, a specific process of "the hybrid network scheduling server receives the monitoring video code stream based on the communication link of the target server and disconnects the communication link with another server" in step S550 may be further described with reference to the following description.

The following steps are described: when the target server is the cooperative conversion server, the hybrid network scheduling server sends a stop signal to the internet server to enable the internet server to stop feeding back the monitoring video code stream;

and sending a stop signal to the internet server to reduce the occupancy rate of the server, wherein the sending of the stop signal to the internet server adopts an SIP protocol.

The following steps are described: the hybrid network scheduling server disconnects a communication link with the internet server;

and after the hybrid network scheduling server sends the stop signal, disconnecting the communication link of the Internet server, wherein the communication link of the Internet server is in a waiting sequence before being disconnected.

The following steps are described: the hybrid network scheduling server receives the monitoring video code stream through a communication link of the cooperative conversion server;

before, at the same time or after the internet server is disconnected, the hybrid network scheduling server receives the monitoring video code stream through the protocol conversion server, wherein the communication protocol for receiving the monitoring video code stream is a video networking protocol.

The following steps are described: when the target server is the internet server, the hybrid network scheduling server sends a stop signal to the cooperative conversion server, so that the cooperative conversion server stops feeding back the monitoring video code stream;

and sending a stop signal to the cooperative conversion server to reduce the occupancy rate of the server, wherein the sending of the stop signal to the cooperative conversion server adopts a video networking protocol.

The following steps are described: the hybrid network scheduling server disconnects a communication link with the cooperative transmission server;

and after the hybrid network scheduling server sends the stop signal, disconnecting the communication link of the cooperative switching server, wherein the communication link of the cooperative switching server is in a waiting sequence before being disconnected.

The following steps are described: and the hybrid network scheduling server receives the monitoring video code stream through a communication link of the Internet server.

Before, at the same time or after the protocol conversion server is disconnected, the hybrid network scheduling server receives the monitoring video code stream through the internet server, wherein the communication protocol for receiving the monitoring video code stream is an RTP protocol.

As an example, in the present application, the number of the cooperative server and the internet server connected to the hybrid network scheduling server may be more than one, and when there is more than one server corresponding to each server type, after the server type is selected, the server may be preferentially selected, and the process is not repeated.

In a preferred embodiment of the present invention, after the steps of the hybrid network scheduling server receiving the monitoring video code stream based on the communication link of the target server and disconnecting the communication link with another server, the method further includes:

and the hybrid network scheduling server transmits the monitoring video code stream to a preset video playing platform for playing.

It should be noted that, after acquiring the monitoring video code stream, the hybrid network scheduling server sends the monitoring video code stream to the monitoring platform through a preset communication protocol, where the communication protocol may be an RTP protocol.

Referring to fig. 5, an embodiment of the present invention further discloses a method for switching a video communication link, which is applied to scheduling of monitoring video code streams between servers, where the servers include a protocol conversion server based on video networking communication, an internet server based on ethernet communication, and a hybrid network scheduling server respectively connected to the protocol conversion server and the internet server through a unique communication link, and the communication link is used to transmit the monitoring video code streams, and the method includes:

s710, when receiving a switching request aiming at a communication link, the hybrid network scheduling server generates a flow regulation request according to the switching request, wherein the flow regulation request has an identifier of a target server;

s720, the hybrid network scheduling server judges the type of the target server by adopting the identifier of the target server;

s730, when the type is the coordination server, the hybrid network scheduling server sends the flow adjusting request to the target server by adopting a first communication link; wherein the first communication link is a communication link adapted to a transport protocol of a video networking;

s740, when the type is the Internet server, the hybrid network scheduling server sends the stream adjusting request to the target server by adopting a second communication link; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet;

and S750, the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server.

When receiving a switching request aiming at a communication link, a scheduling server of the hybrid network generates a flow adjusting request according to the switching request, wherein the flow adjusting request has an identifier of a target server; the hybrid network scheduling server adopts the identifier of the target server to judge the type of the target server; when the type is the coordination server, the hybrid network scheduling server sends the stream modulation request to the target server by adopting a first communication link; wherein the first communication link is a communication link adapted to a transport protocol of a video networking; when the type is the internet server, the hybrid network scheduling server sends the stream adjusting request to the target server by adopting a second communication link; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet; the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server, so that when monitoring resources repeatedly exist in the video network and the Internet, the requirement that a user autonomously decides to play the video code stream by using a certain link is met, and the stability of stream adjustment and the experience of the user are improved.

Next, a switching method of the video communication link in the present exemplary embodiment will be further described.

As described in step S710, when receiving a handover request for a communication link, the hybrid network scheduling server generates a traffic adjusting request according to the handover request, where the traffic adjusting request includes an identifier of a target server;

it should be noted that the handover request includes an identifier of the target server, where the identifier of the target server may be a device unique identifier of the target server, or may be a physical address of the target server.

In a preferred embodiment of the present invention, a specific process of "the hybrid network scheduling server generates a stream switching request according to a handover request when receiving the handover request for the video communication link" in step S710 may be further described in conjunction with the following description.

in a preferred embodiment of the present invention, a specific process of the step "the hybrid network scheduling server determines whether the target server stores the monitoring video code stream" may be further described with reference to the following description.

The following steps are described: the hybrid network scheduling server acquires ID information of the monitoring video code stream, and generates a query request by adopting the ID information, wherein the query request is used for querying whether the monitoring video code stream is stored in the target server;

as a kind of indication, after confirming the monitoring video code stream, the hybrid network scheduling server extracts ID information in the monitoring video code stream, and uses the ID information as a generation parameter for generating an inquiry request for inquiring whether the monitoring video code stream is stored in the target server, so as to generate the inquiry request.

The following steps are described: the hybrid network scheduling server sends the query request to the target server;

it should be noted that, after receiving the query request, the target server extracts the ID information of the monitored video code stream by analyzing the query request, matches the monitored video code stream in its own repository, and determines whether the monitored video code stream with the same ID information is matched, when the monitored video code stream with the same ID information is matched, the content is the query result in which the ID information is stored, and when the monitored video code stream with the same ID information is not matched, the content is the query result in which the ID information is not stored.

The following steps are described: the hybrid network scheduling server judges whether the monitoring video code stream is stored in the target server according to the query result fed back by the target server;

And when the target server stores the monitoring video, namely if the monitoring video exists, generating the flow adjusting request according to the switching request.

As described in step S720, the hybrid network scheduling server determines the type of the target server by using the identifier of the target server;

it should be noted that the hybrid network scheduling server determines the type of the target server according to the physical address of the target server, where the type is distinguished for a network protocol type based on transmission data of the server, and includes a protocol conversion server and an internet server.

As described in step S730, when the type is the cooperative server, the hybrid network scheduling server sends the traffic adjusting request to the target server by using a first communication link; wherein the first communication link is a communication link adapted to a transport protocol of a video networking;

as stated in step S740, when the type is the internet server, the hybrid network scheduling server sends the traffic adjusting request to the target server by using the second communication link; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet;

it should be noted that the transport protocol adapted to the ethernet may be an INVITE procedure in the SIP protocol.

As described in step S750 above, the hybrid network scheduling server disconnects the communication link of the current server, and receives the monitoring video code stream fed back by the target server.

In a preferred embodiment of the present invention, a specific process of "the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video stream fed back by the target server" in step S750 may be further described with reference to the following description.

The following steps are described: the hybrid network scheduling server acquires a first network condition of the target server;

it should be noted that the first network condition may be a network transmission speed of a current communication link of the target server, a packet loss rate of the communication link of the target server, a network delay condition of the communication link of the target server, or a combination of any two or three of the first three.

The following steps are described: the hybrid network scheduling server acquires a second network condition of the current server;

it should be noted that the first network condition may be a network transmission speed of a current communication link of the current server, a packet loss rate of the current communication link of the current server, a network delay condition of the current communication link of the current server, or a combination of any two or three of the first three.

It should be noted that the types of the network conditions of the target server and the current server obtained by the hybrid network scheduling server are the same, that is, when the first network condition is determined as the network transmission speed, the second network condition can only be the network transmission speed.

The following steps are described: the hybrid network scheduling server compares the first network condition with the second network condition;

in a preferred embodiment of the present invention, a specific process of the step "the hybrid network scheduling server compares the merits of the first network condition and the second network condition" can be further explained in conjunction with the following description.

When the network condition types of the target server and the current server acquired by the hybrid network scheduling server are network transmission speeds,

the hybrid network scheduling server extracts a first network speed in the first network condition; the hybrid network speed server extracts a second network speed in the second network condition; the hybrid network scheduling server judges whether the first network speed is greater than a second network speed; if so, the first network condition is better than the second network condition; and if not, the second network condition is superior to the first network condition.

The following steps are described: and when the first network condition is superior to the second network condition, the hybrid network scheduling server disconnects the communication link of the current server and receives the monitoring video code stream fed back by the target server.

In a preferred embodiment of the present invention, the method further comprises:

it should be noted that the query mode may be interactive information displayed on the monitoring platform playing interface, such as a query popup; the interactive information played through voice can be used.

It should be noted that the user feedback may be a pop-up button of the user selection interface, or a voice reply.

The embodiment of the invention also discloses a method for reconnecting the disconnected network video, which is applied to the reconnection of the communication link among servers, wherein the servers comprise a protocol conversion server based on video network communication, an internet server based on Ethernet communication and a hybrid network scheduling server which respectively passes through a unique communication link with the protocol conversion server and the internet server, the communication link is used for transmitting the monitoring video code stream, and the method comprises the following steps:

s810, the hybrid network scheduling server respectively obtains the speed of the cooperative transmission server and the speed of the internet server for obtaining the monitoring video code stream;

s820, the hybrid network scheduling server configures a server with a higher speed for acquiring the monitoring video code stream as a main server, configures a server with a lower speed as an auxiliary server, and disconnects a communication link of the auxiliary server;

s830, the hybrid network scheduling server adds a communication link of the main server into a preset code stream detection queue;

s840, when the hybrid network scheduling server cannot receive the monitoring video code stream sent by the main server, disconnecting a communication link with the main server, and removing the communication link of the Internet server from the code stream detection queue;

s850, the hybrid network scheduling server generates a stream adjusting request of the monitoring video code stream and sends the stream adjusting request to the secondary server;

s860, the hybrid network scheduling server receives the monitoring video code stream fed back by the secondary server;

and S870, the hybrid network scheduling server adds the communication link of the secondary server into the code stream detection queue.

The hybrid network scheduling server respectively acquires the speed of the cooperative conversion server and the speed of the internet server for acquiring the monitoring video code stream; the hybrid network scheduling server configures a server with a higher speed for acquiring the monitoring video code stream as a main server, configures a server with a lower speed as an auxiliary server, and disconnects a communication link of the auxiliary server; the hybrid network scheduling server adds a communication link of the main server into a preset code stream detection queue; when the hybrid network scheduling server cannot receive the monitoring video code stream sent by the main server, disconnecting a communication link with the main server, and removing the communication link of the Internet server from the code stream detection queue; the hybrid network scheduling server generates a flow adjusting request of the monitoring video code stream and sends the flow adjusting request to the auxiliary server; the hybrid network scheduling server receives the monitoring video code stream fed back by the secondary server; the mixed network dispatching server adds the communication link of the secondary server into the code stream detection queue, when monitoring resources repeatedly exist in two platforms of a video network and an internet, the stability of stream adjustment is ensured by a new code stream detection mechanism during playing and monitoring, when one of the two links is disconnected, the other link can be quickly switched to, so that the user experience is better, and when one of the links is disconnected, the other link can be stably switched to for playing

Next, a method for reconnecting the disconnected network video in the present exemplary embodiment will be further described.

As described in step S810, the hybrid network scheduling server obtains the speed at which the cooperative transmission server and the internet server transmit the monitoring video code stream, respectively;

it should be noted that, the speed of acquiring the monitoring video code stream sent by the server is acquired through a corresponding communication protocol,

as described in step S820, the hybrid network scheduling server configures a server with a higher speed for acquiring the monitoring video code stream as a primary server, configures a server with a slower speed as a secondary server, and disconnects a communication link of the secondary server;

it should be noted that, after the method for calling the video communication link is executed, the steps S810 to S820 may not be executed, where the primary server is a server currently receiving the code stream, and the secondary server is a server to be communicated.

In a preferred embodiment of the present invention, a specific process of "the hybrid network scheduling server configures a server with a higher speed of acquiring the monitoring video code stream as a primary server, configures a server with a slower speed as a secondary server, and disconnects a communication link of the secondary server" in step S820 may be further described with reference to the following description.

When the server with the higher speed for acquiring the monitoring video code stream is the cooperative server, the hybrid network scheduling server sets the cooperative server as the main server, sets the internet server as the auxiliary server, and disconnects a communication link of the internet server;

and when the server with the higher speed for acquiring the monitoring video code stream is the internet server, the hybrid network scheduling server sets the internet server as the main server, sets the cooperative server as the auxiliary server and disconnects a communication link of the cooperative server.

As described in step S830, the hybrid network scheduling server adds the communication link of the main server to a preset code stream detection queue;

it should be noted that the preset code stream detection queue is used for monitoring the code stream sending condition of the main server in real time, and is used for calling the auxiliary server to acquire the video code stream when the server is disconnected or the transmission speed is too low.

As stated in step S840, when the hybrid network scheduling server cannot receive the monitoring video code stream sent by the main server, the hybrid network scheduling server disconnects the communication link with the main server, and removes the communication link of the internet server from the code stream detection queue;

in a preferred embodiment of the present invention, before the steps of disconnecting the communication link with the main server and removing the communication link of the internet server from the code stream detection queue when the hybrid network scheduling server cannot receive the monitoring video code stream sent by the main server, the method further includes

The hybrid network scheduling server obtains the detection data of the main server from the code stream detection queue;

it should be noted that the detection data may be any one or a combination of a speed at which the main server sends the monitoring video code stream and a network delay condition at which the main server sends the communication link.

The hybrid network scheduling server judges whether the monitoring video code stream sent by the main server cannot be received or not according to the detection data;

in a preferred embodiment of the present invention, a specific process of "the hybrid network scheduling server determines whether the monitoring video code stream sent by the main server cannot be received according to the detection data" may be further described with reference to the following description.

When the judgment condition of the hybrid network scheduling server is the speed of sending the monitoring video code stream,

the mixed network scheduling server extracts the real-time code stream sending speed in the detection data; and the hybrid network scheduling server judges whether the real-time code stream sending speed is equal to 0 or not.

And if so, the hybrid network scheduling server judges that the monitoring video code stream sent by the main server cannot be received.

As described in step S850 above, the hybrid network scheduling server generates a stream adjustment request of the monitoring video code stream, and sends the stream adjustment request to the secondary server;

it should be noted that, the transmission protocol for sending the flow adjustment request performs different adaptations according to different types of servers, when the server is a protocol conversion server, the flow adjustment request is sent by using a video networking protocol, and when the server is an internet server, the flow adjustment request is sent by using an SIP protocol.

As described in step S860 above, the hybrid network scheduling server receives the monitoring video code stream fed back by the secondary server;

it should be noted that, receiving the monitoring video code stream performs different adaptations according to different types of servers, when the server is a protocol conversion server, receiving the monitoring video code stream is performed by using a video networking protocol, and when the server is an internet server, receiving the monitoring video code stream is performed by using an RTP protocol.

As described in step S870, the hybrid network scheduling server adds the communication link of the secondary server to the code stream detection queue.

It should be noted that, the communication link of the secondary server is added to the code stream detection queue, and is used to detect the code stream sending situation of the secondary server, so that when the secondary server is disconnected, the method for network video disconnection and reconnection disclosed in the embodiment of the present invention is performed again, and at this time, the secondary server is regarded as the primary server in the method, and performs corresponding step processing.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.

The embodiment of the invention also discloses a calling device of the video communication link, which is used for monitoring the scheduling of the video code stream among the servers, wherein the servers comprise a protocol conversion server based on video networking communication, an internet server based on Ethernet communication and a hybrid network scheduling server which respectively passes through a unique communication link with the protocol conversion server and the internet server, and the method comprises the following steps:

the code stream determining module is used for determining a monitoring video code stream corresponding to an acquisition request when the acquisition request aiming at the monitoring video code stream is received;

the judging module is used for judging whether the monitoring video code stream is stored in the cooperative conversion server and the Internet server;

the flow adjusting request sending module is used for generating a flow adjusting request aiming at the monitoring video code stream by the mixed network scheduling server when the monitoring video is stored in the coordination server and the internet server, and respectively sending the flow adjusting request to the coordination server and the internet server;

the server confirmation module is used for the hybrid network scheduling server to determine that the server which firstly feeds back the monitoring video code stream is the target server;

and the code stream receiving module is used for receiving the monitoring video code stream based on the communication link of the target server and disconnecting the communication link with other servers.

In a preferred embodiment of the present invention, the determining module includes:

the query request generation submodule is used for acquiring ID information of the monitoring video code stream and generating a query request by adopting the ID information, wherein the query request is used for querying whether the monitoring video code stream is stored in the corotation server and the internet server;

the query request sending submodule is used for respectively sending the query request to the cooperative conversion server and the Internet server;

the query result judgment submodule is used for judging whether the monitoring video exists in the cooperative conversion server and the internet server or not according to the query results fed back by the cooperative conversion server and the internet server;

a corotation server determination submodule, configured to determine that the monitoring video is stored in the corotation server when the query result fed back by the corotation server is that the ID information is stored;

and the internet server judging submodule is used for judging that the monitoring video is stored in the internet server when the query result fed back by the internet server is that the ID information is stored.

In a preferred embodiment of the present invention, the code stream receiving module includes:

the first stop signal sending submodule is used for sending a stop signal to the internet server when the target server is the cooperative server so that the internet server stops feeding back the monitoring video code stream;

the first communication link cutting sub-module is used for cutting off a communication link with the internet server;

the first code stream receiving submodule is used for receiving the monitoring video code stream through a communication link of the cooperative conversion server;

the second stop signal sending submodule is used for sending a stop signal to the corotation server when the target server is the internet server, so that the corotation server stops feeding back the monitoring video code stream;

the second communication link cutting sub-module is used for cutting off the communication link with the cooperative conversion server;

and the second code stream receiving submodule is used for receiving the monitoring video code stream through a communication link of the internet server.

In a preferred embodiment of the present invention, the apparatus further comprises:

and the code stream sending module is used for transmitting the monitoring video code stream to a preset video playing platform for playing.

Referring to fig. 6, an embodiment of the present invention further discloses a switching apparatus for a video communication link, which is applied to scheduling of monitoring video code streams between servers, where the servers include a protocol conversion server based on video networking communication, an internet server based on ethernet communication, and a hybrid network scheduling server respectively connected to the protocol conversion server and the internet server through a unique communication link, where the communication link is used to transmit the monitoring video code streams, and specifically includes:

a traffic flow request generating module 610, configured to generate a traffic flow request according to a handover request when the handover request for a communication link is received, where the traffic flow request has an identifier of a target server;

a server type determining module 620, configured to determine the type of the target server by using the identifier of the target server;

a first tuning request sending module 630, configured to send the tuning request to the target server by using a first communication link when the type is the coordination server; wherein the first communication link is a communication link adapted to a transport protocol of a video networking;

a second traffic request sending module 640, configured to send the traffic request to the target server by using a second communication link when the type is the internet server; wherein the second communication link is a communication link adapted to a transmission protocol of an ethernet;

and a video code stream receiving module 650, configured to disconnect the communication link of the current server, and receive the monitoring video code stream fed back by the target server.

In a preferred embodiment of the present invention, the video stream receiving module 650 includes:

and the code stream acquisition sub-connection module is used for disconnecting the communication link of the current server and receiving the monitoring video code stream fed back by the target server when the first network condition is superior to the second network condition.

the user inquiry module is used for inquiring whether the user needs to continuously switch the video communication link when the second network condition is superior to the first network condition;

and the code stream acquisition module is used for disconnecting the communication link of the current server and receiving the monitoring video code stream fed back by the target server when the user feeds back that the switching is confirmed.

In a preferred embodiment of the present invention, the network condition comparison sub-module includes:

the first network speed obtaining submodule is used for extracting the first network speed in the first network condition;

the second network speed obtaining submodule is used for extracting a second network speed in the second network condition;

the network speed comparison submodule is used for judging whether the first network speed is greater than a second network speed;

a determination submodule, configured to, if yes, determine that the first network condition is better than the second network condition; and if not, the second network condition is superior to the first network condition.

In a preferred embodiment of the present invention, the shunting request generating module 610 includes:

a monitoring video code stream judgment submodule for judging whether the target server stores the monitoring video code stream;

and the flow regulation request generation submodule is used for generating the flow regulation request according to the switching request if the flow regulation request is generated.

In a preferred embodiment of the present invention, the monitoring video code stream determining sub-module includes:

an ID information query request generation submodule, configured to acquire ID information of the monitoring video code stream, and generate a query request using the ID information, where the query request is used to query whether the monitoring video code stream is stored in the target server;

an ID information query request sending submodule for sending the query request to the target server;

the target server judgment submodule is used for judging whether the monitoring video code stream is stored in the target server according to the query result fed back by the target server;

and the target server judging submodule is used for judging that the monitoring video is stored in the target server when the query result fed back by the target server is that the ID information is stored.

The embodiment of the invention also discloses a device for reconnecting the disconnected network video, which is applied to the reconnection of the communication link among the servers, wherein the servers comprise a coordination server, an internet server and a hybrid network scheduling server which is respectively connected with the coordination server and the internet server, and the coordination server acquires the monitoring video code stream through the coordination server based on the video network communication; the internet server obtains the monitoring video code stream through the internet server based on the Ethernet communication, and the device comprises:

a code stream speed obtaining module, configured to obtain the speed at which the cooperative conversion server and the internet server obtain the monitoring video code stream respectively;

the first server configuration module is used for configuring a server which has a higher speed for acquiring the monitoring video code stream as a main server, configuring a server which has a lower speed as an auxiliary server and disconnecting a communication link of the auxiliary server;

the first code stream detection module is used for adding the communication link of the main server into a preset code stream detection queue;

the disconnection module is used for disconnecting a communication link with the main server and removing the communication link of the internet server from the code stream detection queue when the hybrid network scheduling server cannot receive the monitoring video code stream sent by the main server;

the stream adjusting request generating module is used for generating a stream adjusting request of the monitoring video code stream and sending the stream adjusting request to the auxiliary server;

the code stream receiving module is used for receiving the monitoring video code stream fed back by the auxiliary server;

and the second code stream detection module is used for adding the communication link of the secondary server into the code stream detection queue.

Further, the first server configuration module comprises:

the first server configuration submodule is used for setting the cooperative conversion server as the main server, setting the internet server as the auxiliary server and disconnecting the communication link of the internet server when the server with the higher speed for acquiring the monitoring video code stream is the cooperative conversion server;

and the second server configuration submodule is used for setting the internet server as the main server, setting the cooperative server as the auxiliary server and disconnecting the communication link of the cooperative server by the hybrid network scheduling server when the server with the higher speed for acquiring the monitoring video code stream is the internet server.

Further, the apparatus further comprises:

the detection data acquisition module is used for acquiring the detection data of the main server from the code stream detection queue;

the data receiving and judging module is used for judging whether the monitoring video code stream sent by the main server cannot be received or not according to the detection data;

and the disconnection judging module is used for judging that the monitoring video code stream sent by the main server cannot be received if the disconnection judging module is used for judging that the monitoring video code stream sent by the main server cannot be received.

Further, the data receiving and judging module comprises:

the code stream sending speed extraction submodule is used for extracting the real-time code stream sending speed in the detection data;

the code stream sending speed judging submodule is used for judging whether the real-time code stream sending speed is equal to 0 or not;

and the receiving judgment submodule is used for judging that the monitoring video code stream sent by the main server cannot be received if the monitoring video code stream is received.

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The method and the apparatus for switching a video communication link provided by the present invention are described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A switching method of video communication links is applied to scheduling of monitoring video code streams among servers, the servers comprise a protocol conversion server based on video networking communication, an Internet server based on Ethernet communication and a hybrid network scheduling server which is respectively connected with the protocol conversion server and the Internet server through unique communication links, the communication links are used for transmitting the monitoring video code streams, and the method comprises the following steps:

the hybrid network scheduling server disconnects a communication link of a current server and receives the monitoring video code stream fed back by the target server;

the step of disconnecting the communication link of the current server by the hybrid network scheduling server and receiving the monitoring video code stream fed back by the target server comprises the following steps:

2. The method of claim 1, further comprising:

3. The method of claim 1, wherein the step of the hybrid network scheduling server comparing the first network condition and the second network condition comprises:

the hybrid network scheduling server extracts a second network speed in the second network condition;

4. The method according to claim 1 or 2, wherein the step of generating the stream-adjusting request according to the handover request when the hybrid network scheduling server receives the handover request for the video communication link comprises:

5. The method according to claim 4, wherein the step of the hybrid network scheduling server determining whether the target server stores the monitoring video code stream comprises:

6. The switching device of a video communication link, characterized by, apply to the deployment of the monitoring video code stream among the servers, the said server includes the cooperative conversion server based on communication of the video network, the Internet server based on communication of Ethernet, and mix the network scheduling server that the network server connects through the only communication link with the said cooperative conversion server and the said Internet server separately, the said communication link is used for transmitting the said monitoring video code stream, include specifically:

the video code stream receiving module is used for disconnecting the communication link of the current server and receiving the monitoring video code stream fed back by the target server;

wherein, the video code stream receiving module comprises:

7. A terminal, comprising:

one or more processors; and

one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the terminal to perform the method of switching video communication links of one or more of claims 1 to 5.

8. A computer-readable storage medium storing a computer program for causing a processor to execute the method for switching a video communication link according to any one of claims 1 to 5.