CN110113564B - Data acquisition method and video networking system - Google Patents
Data acquisition method and video networking system Download PDFInfo
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- CN110113564B CN110113564B CN201910229107.6A CN201910229107A CN110113564B CN 110113564 B CN110113564 B CN 110113564B CN 201910229107 A CN201910229107 A CN 201910229107A CN 110113564 B CN110113564 B CN 110113564B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The embodiment of the invention provides a data acquisition method and a video networking system, wherein the method comprises the following steps: the front-end equipment sends a data acquisition instruction to the first protocol conversion server according to the received data acquisition information; the first protocol conversion server judges whether the data acquisition instruction corresponds to a first data source or not; when the data acquisition instruction does not correspond to the first data source, the first protocol conversion server forwards the data acquisition instruction to the second protocol conversion server; the second protocol conversion server acquires resource data from a second data source; and the second protocol conversion server performs protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returns the target resource data to the first protocol conversion server. According to the embodiment of the invention, the first protocol conversion server acquires the monitoring data butted by the second protocol conversion server, so that the integration and butt joint of the heterogeneous monitoring equipment are realized, and the flexibility of acquiring the monitoring resources of the video network is improved.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a data acquisition method and a video networking system.
Background
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 the real-time transmission of full-network high-definition videos which cannot be realized by the existing Internet, and pushes a plurality of Internet applications to high-definition video.
In conventional monitoring devices (dawa, haikang), NVR (Network Video Recorder), DVR (Digital Video Recorder), and IPC (Industrial Personal Computer), real-time pictures in the monitoring system can be watched through configuration web pages thereof. However, with the rapid development of monitoring technology, the transmission protocol environment deployed by monitoring equipment becomes diverse. Due to the difference between the transmission protocols, the acquisition of monitoring resources across the protocols becomes very difficult, and how to implement the integrated docking between various heterogeneous monitoring devices becomes a problem that needs to be solved continuously by those skilled in the art.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a data acquisition method and an internet of view system that overcome or at least partially solve the above problems.
In order to solve the above problem, a first aspect of the embodiments of the present invention discloses a data acquisition method, where the method is applied to a video networking system, and the video networking system includes: the system comprises front-end equipment, a first protocol conversion server, a second protocol conversion server, a first data source in communication connection with the first protocol conversion server, and a second data source in communication connection with the second protocol conversion server, wherein the first data source and the second data source adopt different transmission protocols, and the method comprises the following steps:
the front-end equipment receives data acquisition information;
the front-end equipment sends a data acquisition instruction to the first protocol conversion server according to the data acquisition information;
the first protocol conversion server judges whether the data acquisition instruction corresponds to the first data source;
when the data acquisition instruction does not correspond to the first data source, the first protocol conversion server forwards the data acquisition instruction to a corresponding second protocol conversion server;
the second protocol conversion server acquires corresponding resource data from the second data source according to the data acquisition instruction;
the second protocol conversion server performs protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returns the target resource data to the first protocol conversion server;
and the first protocol conversion server returns the target resource data to the front-end equipment.
Optionally, after the step of determining, by the first protocol conversion server, whether the data obtaining instruction corresponds to the first data source, the method further includes:
and when the data acquisition instruction corresponds to the first data source, the first protocol conversion server acquires corresponding target resource data from the first data source according to the data acquisition instruction.
Optionally, the returning, by the first protocol conversion server, the target resource data to the front-end device includes:
the first protocol conversion server splits the target resource data according to an HLS protocol to obtain fragmented resource data and an index file;
and the first protocol conversion server locally stores the fragment resource data and sends the index file to the front-end equipment.
Optionally, the index file includes: indexing a mapping relation between the subfiles and the fragment resource data; after the step of returning the target resource data to the front-end device by the first protocol conversion server, the method further includes:
the front-end device sends a fragment data acquisition instruction to the first protocol conversion server according to the index file, wherein the fragment data acquisition instruction comprises: a target index subfile;
and the first protocol conversion server returns corresponding target fragment resource data to the front-end equipment according to the target index subfile.
Optionally, the receiving, by the front-end device, data acquisition information includes:
the front-end equipment displays a configuration interface;
and the front-end equipment receives the data acquisition information input by the configuration interface.
The second aspect of the embodiment of the present invention discloses a video networking system, which includes: the video network system comprises front-end equipment, a first protocol conversion server, a second protocol conversion server, a first data source in communication connection with the first protocol conversion server, and a second data source in communication connection with the second protocol conversion server, wherein the first data source and the second data source adopt different transmission protocols, and the video network system comprises:
the front-end device includes: the receiving module is used for receiving data acquisition information;
a request sending module, configured to send a data obtaining instruction to the first protocol conversion server by using the data obtaining information;
the first protocol conversion server includes: the judging module is used for judging whether the data acquisition instruction corresponds to the first data source;
the request forwarding module is used for forwarding the data acquisition instruction to a corresponding second protocol conversion server when the data acquisition instruction does not correspond to the first data source;
the second protocol conversion server includes: the first acquisition module is used for acquiring corresponding resource data from the second data source according to the data acquisition instruction;
the protocol conversion module is used for carrying out protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returning the target resource data to the first protocol conversion server;
the first protocol conversion server includes: and the return module is used for returning the target resource data to the front-end equipment.
Optionally, the first protocol conversion server further includes:
and the second acquisition module is used for acquiring corresponding target resource data from the first data source according to the data acquisition instruction when the data acquisition instruction corresponds to the first data source.
Optionally, the return module includes:
the splitting submodule is used for splitting the target resource data according to an HLS protocol to obtain fragmented resource data and an index file;
and the sending submodule is used for locally storing the fragment resource data and sending the index file to the front-end equipment.
Optionally, the index file includes: indexing a mapping relation between the subfiles and the fragment resource data;
the front-end equipment further comprises: a transmission unit: the server is configured to send a fragment data acquisition instruction to the first protocol conversion server according to the index file, where the fragment data acquisition instruction includes: a target index subfile;
the first protocol conversion server further includes: and the return unit is used for returning the corresponding target fragment resource data to the front-end equipment according to the target index subfile.
Optionally, the receiving module includes:
the display sub-module is used for displaying the configuration interface;
and the receiving submodule is used for receiving the data acquisition information input by the configuration interface.
The embodiment of the invention has the following advantages:
the embodiment of the invention provides a data acquisition method and a video networking system, wherein the method comprises the following steps: the front-end equipment receives data acquisition information; the front-end equipment sends a data acquisition instruction to the first protocol conversion server according to the data acquisition information; the first protocol conversion server judges whether the data acquisition instruction corresponds to a first data source or not; when the data acquisition instruction does not correspond to the first data source, the first protocol conversion server forwards the data acquisition instruction to a corresponding second protocol conversion server; the second protocol conversion server acquires corresponding resource data from a second data source according to the data acquisition instruction; the second protocol conversion server performs protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returns the target resource data to the first protocol conversion server; the first protocol conversion server returns the target resource data to the front-end equipment. The embodiment of the invention acquires the monitoring data butted by the second protocol conversion server through the first protocol conversion server, realizes the integrated butting between the heterogeneous monitoring equipment, and improves the flexibility of acquiring the monitoring resources of the video network
Drawings
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 schematic diagram of a data transmission process during data acquisition according to the present invention;
FIG. 6 is a flow chart of the steps of a data acquisition method of the present invention;
fig. 7 is a block diagram of a video networking system 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.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast 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 the potentially enormous 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 exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing 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 video platform adopts the most advanced real-time operating system in order to adapt to the media content 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 content is not passed through the server any more, and is 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 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 video platform to obtain various multimedia video services in various forms. The unified 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 video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
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: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, 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 servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, 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 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.
Based on the characteristics of the video network, one of the core concepts of the embodiment of the invention is provided, and the first protocol conversion server is responsible for judging and forwarding the data acquisition request according to the protocol of the video network; the second protocol conversion server is responsible for acquiring resource data and converting a protocol to acquire target resource data; providing, by the second data source, resource data.
In the embodiment of the invention, the video networking system comprises a front-end terminal, a first protocol conversion server, a second protocol conversion server, a first data source and a second data source.
Referring to fig. 5, in the embodiment of the present invention, a front-end device 501 and a first protocol conversion server 502 are communicatively connected via an internet of view, the first protocol conversion server 502 and a second protocol conversion server 503 are communicatively connected via an internet of view, the first protocol conversion server 501 and a first data source 504 are communicatively connected via an internet, and the second protocol conversion server 503 and a second data source 505 are communicatively connected via a communication protocol other than the internet.
Example one
Referring to fig. 6, a flow chart of steps of an embodiment of a data acquisition method of the present invention is shown, the method is applied to a video networking system, and the video networking system comprises: the method comprises the following steps that front-end equipment, a first protocol conversion server, a second protocol conversion server, a first data source in communication connection with the first protocol conversion server, and a second data source in communication connection with the second protocol conversion server, wherein the first data source and the second data source adopt different transmission protocols, and the method can comprise the following steps:
In the embodiment of the invention, the front-end equipment is a PC, a personal notebook computer and mobile terminal equipment which are deployed at the outer side of a system framework and can receive information input outside the system and information output inside the system.
In the embodiment of the present invention, when a user needs to view a monitoring resource, the user may input, through a personal front-end device, which may be a personal notebook computer of the user, related information of the monitoring resource to be acquired, that is, the data acquisition information, through a 9000 page (the 9000 page is a configuration interface of the protocol conversion integrated heterogeneous device) in the personal notebook computer. The data acquisition information may be device IP, port number, address identifier, etc. of the monitoring resource.
Optionally, step 601 includes:
a1, the front-end equipment displays a configuration interface.
In the embodiment of the present invention, the front-end device presents the configuration page to a user, where the configuration page may be a 9000 page, and is used to input relevant information of data to be acquired, and the configuration interface may include an IP and a port number of a monitoring device corresponding to the data information, and a data identifier of the data information.
A2, the front-end equipment receives the data acquisition information input by the configuration interface.
In the embodiment of the present invention, the user inputs the data acquisition information through a configuration interface in the front-end device. The method for configuring the interface receives the relevant information of the user on the monitoring resource needing to be obtained, simplifies the steps of obtaining the different sources of the monitoring resource, and improves the use experience of the user by obtaining the monitoring resource only by the address information corresponding to the data without confirming the data source corresponding to the monitoring resource needing to be obtained.
In the embodiment of the present invention, the first protocol conversion server is a server in the video network for connecting the video network and a device outside the video network, and is configured to pull data from the accessed device, and package the pulled data to obtain data in the format of the video network, and return the data to the data acquirer. In this step, the first protocol conversion server may be further configured to perform conversion processing on the pulled data according to configuration information of the data format. And after receiving the data acquisition information input by the user through the 9000 interface, the front-end equipment encapsulates the data acquisition information and forwards the data acquisition information to the first protocol conversion server.
In an embodiment of the invention, the first data source is a monitoring device interfacing with the first protocol conversion server. In practical applications, since the monitoring device is often deployed in the internet, the first data source may be a monitoring device adopting an internet protocol and a video networking protocol. And the first protocol conversion server analyzes the data acquisition instruction, and judges whether the target resource data corresponding to the data acquisition instruction is the monitoring equipment corresponding to the first protocol conversion server in butt joint according to the IP and the port number of the target resource data carried in the data acquisition instruction. It can be understood that, because different data sources have different protocol conversion types, different types of data sources need to be determined and different data acquisition modes need to be adopted in order to realize heterogeneous integration and acquisition of monitoring resources.
Optionally, after the step 603, the method further includes:
step B1, when the data obtaining instruction corresponds to the first data source, the first protocol conversion server obtains corresponding target resource data from the first data source according to the data obtaining instruction.
In an embodiment of the present invention, the first protocol conversion server may interface a plurality of the first data sources. And if the data source corresponding to the data acquisition instruction is the first data source butted with the first protocol conversion server, the first protocol conversion server directly pulls the target resource data corresponding to the data acquisition instruction from the first data source according to the IP and the port number in the acquisition instruction.
In the embodiment of the invention, the data in the data source of the same protocol conversion type and butted by the first protocol conversion server is directly pulled, so that the efficiency of acquiring the monitoring resources from different sources is improved.
In this embodiment of the present invention, the second protocol conversion server is a server for interfacing the video networking device with a protocol environment device outside the video networking, and is configured to perform protocol conversion on data to be transmitted using another transmission protocol to return to the video networking device. In practical applications, the second protocol conversion server may be a monitoring device other than a device for interfacing with an internet protocol conversion type and a video network, the second protocol conversion server is different from the protocol conversion type used for the first protocol conversion, and the first protocol conversion server is equivalent to a main protocol conversion server responsible for monitoring resource aggregation and may be connected to a plurality of the second protocol conversion servers.
In this embodiment, if the monitoring device corresponding to the data obtaining instruction is not the first data source, the protocol conversion server forwards the data obtaining instruction to the second protocol conversion server of the corresponding protocol conversion type according to the IP address and the port number of the target resource information in the data obtaining instruction.
In this embodiment of the present invention, the second protocol conversion server forwards the data acquisition instruction to the corresponding second data source according to the IP and the port number in the data acquisition instruction. In practical applications, the second protocol conversion server may interface a plurality of the second data sources. And the second data source analyzes the data acquisition instruction and locally queries the corresponding resource data according to the address identifier in the data acquisition instruction. The resource data is transmitted by a transmission protocol except the video network, cannot be transmitted in the video network, and can only return to the second protocol conversion server provided with the data transmission protocol type interface.
In the embodiment of the present invention, in order to implement transmission of the resource data in the video network to return to the data acquirer, the second protocol conversion server performs adaptive protocol conversion on the resource data to obtain the target resource data in the video network format, and returns the target resource data to the first protocol conversion server. The first protocol conversion server is a main protocol conversion server of the system framework, and all the acquired resource data are returned to the first protocol conversion server for resource integration.
Step 608, the first protocol conversion server returns the target resource data to the front-end device.
In the embodiment of the present invention, after receiving the target resource data, the first protocol conversion server performs corresponding format conversion on the target resource data according to configuration information to adapt to actual requirements of the front-end device, where the front-end device needs to obtain resource data in an MP4 format, or the front-end device adopts an HLS (HTTP Live Streaming over HTTP) transmission protocol, which is proposed by apple inc, and needs to obtain resource data in a TS format. And the first protocol conversion server returns the processed target resource data to the front-end equipment.
Optionally, the step 608 includes:
and step C1, the first protocol conversion server splits the target resource data according to the HLS protocol to obtain fragmented resource data and an index file.
In this embodiment of the present invention, the first protocol conversion server may perform format conversion on the target resource data by using an HLS protocol, so as to provide monitoring resource support for the front-end device using the HLS protocol. And the first protocol conversion server splits the target resource data according to the HLS protocol and then encapsulates the split target resource data to obtain the fragmented resource data in the TS format and the index file in the M3U8 format.
Step C2, the first protocol conversion server stores the fragmented resource data locally, and sends the index file to the front-end device.
In the embodiment of the present invention, the target resource data is converted according to the HLS protocol, and the fragmented resource data is locally stored, so that the front-end device can obtain the fragmented resource data from the first protocol conversion server at any time through the index file, thereby implementing a history playback function of the fragmented resource data and reducing the local storage pressure of the front-end device.
Optionally, the index file includes: indexing a mapping relation between the subfiles and the fragment resource data; after the step C2, the method further includes:
step D1, the front-end device sends a fragment data obtaining instruction to the first protocol conversion server according to the index file, where the fragment data obtaining instruction includes: the target index subfile.
In the embodiment of the present invention, because the HLS protocol-based file is characterized in that each fragment subfile can be separately acquired and can be normally played, the front-end device may extract the required target index subfile according to the index file and according to actual needs, and generate the fragment data acquisition instruction party for the target index subfile to the first protocol conversion server.
Step D2, the first protocol conversion server returns the corresponding target fragmented resource data to the front-end device according to the target index subfile.
In this embodiment of the present invention, the first protocol conversion server parses the fragment data obtaining instruction to obtain the target index subfile, queries the target fragment resource data corresponding to the target index subfile according to the locally stored index file, and returns the target fragment resource data to the first protocol conversion server. In practical applications, the fragmented file acquisition instruction may include a plurality of the index subfiles.
In the embodiment of the present invention, the target fragment resource data is acquired from the first protocol conversion server through the index file, and the fragment resource data does not need to be acquired, so that the flexibility of acquiring the fragment resource data is improved. And because the fragmented resource data is stored in the first protocol conversion server, the data storage pressure of the front-end equipment is relieved.
The embodiment of the invention provides a data acquisition method, which comprises the following steps: the front-end equipment receives data acquisition information; the front-end equipment sends a data acquisition instruction to the first protocol conversion server according to the data acquisition information; the first protocol conversion server judges whether the data acquisition instruction corresponds to a first data source or not; when the data acquisition instruction does not correspond to the first data source, the first protocol conversion server forwards the data acquisition instruction to a corresponding second protocol conversion server; the second protocol conversion server acquires corresponding resource data from a second data source according to the data acquisition instruction; the second protocol conversion server performs protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returns the target resource data to the first protocol conversion server; the first protocol conversion server returns the target resource data to the front-end equipment. The embodiment of the invention acquires the monitoring data butted by the second protocol conversion server through the first protocol conversion server, realizes the integrated butting between the heterogeneous monitoring equipment, and improves the flexibility of acquiring the monitoring resources of the video network
Example two
Referring to fig. 7, a block diagram of an embodiment of a video networking system 70 of the present invention is shown, the video networking system comprising: a front-end device 71, a first protocol conversion server 72, a second protocol conversion server 73, a first data source communicatively connected to the first protocol conversion server, and a second data source communicatively connected to the second protocol conversion server, where the first data source and the second data source use different transmission protocols, and the video networking system includes:
the front-end apparatus 71 includes: the receiving module 701 is configured to receive data acquisition information.
Optionally, the receiving module 701 includes:
and the display submodule H1 is used for displaying the configuration interface.
And the receiving submodule H2 is used for receiving the data acquisition information input by the configuration interface.
A request sending module 702, configured to send a data obtaining instruction to the first protocol conversion server by using the data obtaining information.
The first protocol conversion server 72 includes: the determining module 703 is configured to determine whether the data obtaining instruction corresponds to the first data source.
A request forwarding module 704, configured to forward the data obtaining instruction to a corresponding second protocol conversion server when the data obtaining instruction does not correspond to the first data source.
The second protocol conversion server 73 includes: the first obtaining module 705 is configured to obtain corresponding resource data from the second data source according to the data obtaining instruction.
A protocol conversion module 706, configured to perform protocol conversion on the resource data to obtain target resource data that uses the same transmission protocol as the first protocol conversion server, and return the target resource data to the first protocol conversion server.
The first protocol conversion server 71 includes: a returning module 707, configured to return the target resource data to the front-end device.
Optionally, the first protocol conversion server 71 further includes:
a second obtaining module E1, configured to, when the data obtaining instruction corresponds to the first data source, obtain, according to the data obtaining instruction, corresponding target resource data from the first data source.
Optionally, the returning module 707 includes:
and the splitting submodule F1 is used for splitting the target resource data according to the HLS protocol to obtain the fragmented resource data and the index file.
And the sending submodule F2 is configured to store the fragmented resource data locally, and send the index file to the front-end device.
Optionally, the index file includes: indexing a mapping relation between the subfiles and the fragment resource data;
the front-end device 71 further includes: transmitting unit G1: the server is configured to send a fragment data acquisition instruction to the first protocol conversion server according to the index file, where the fragment data acquisition instruction includes: a target index subfile;
the first protocol conversion server 72 further includes: a returning unit G2, configured to return, according to the target index subfile, corresponding target fragmented resource data to the front-end device.
The embodiment of the invention provides a data acquisition method and a video networking system, wherein the video networking system comprises: the video network system comprises front-end equipment, a first protocol conversion server, a second protocol conversion server, a first data source in communication connection with the first protocol conversion server, and a second data source in communication connection with the second protocol conversion server, wherein the first data source and the second data source adopt different transmission protocols, and the video network system comprises: the front-end device includes: the receiving module is used for receiving data acquisition information; a request sending module, configured to send a data obtaining instruction to the first protocol conversion server by using the data obtaining information; the first protocol conversion server includes: the judging module is used for judging whether the data acquisition instruction corresponds to the first data source; the request forwarding module is used for forwarding the data acquisition instruction to a corresponding second protocol conversion server when the data acquisition instruction does not correspond to the first data source; the second protocol conversion server includes: the first acquisition module is used for acquiring corresponding resource data from the second data source according to the data acquisition instruction; the protocol conversion module is used for carrying out protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returning the target resource data to the first protocol conversion server; the first protocol conversion server includes: and the return module is used for returning the target resource data to the front-end equipment. The embodiment of the invention acquires the monitoring data butted by the second protocol conversion server through the first protocol conversion server, realizes the integrated butting between the heterogeneous monitoring equipment, and improves the flexibility of acquiring the monitoring resources of the video network
For the embodiment of the video networking system, since it is basically similar to the embodiment of the method, the description is simple, and for relevant points, reference may be made to part of the description of the embodiment of the method.
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.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, a video networking system, or a 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 a visual networking system 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 video network systems 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 data acquisition method and the video networking system provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the embodiments is only used for helping to understand the method and the core idea of the 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 (8)
1. A data acquisition method is applied to a video networking system, and the video networking system comprises the following steps: the method comprises the following steps that front-end equipment, a first protocol conversion server and a second protocol conversion server are connected through video networking communication, the first protocol conversion server and the second protocol conversion server are connected through video networking communication, a first data source in communication connection with the first protocol conversion server is connected with the second protocol conversion server through a plurality of second data sources, the first data source and the second data sources adopt different transmission protocols, the first protocol conversion server is a main protocol conversion server which is responsible for monitoring resource gathering and is connected with the second protocol conversion servers, and the method comprises the following steps:
the front-end equipment receives data acquisition information;
the front-end equipment sends a data acquisition instruction to the first protocol conversion server according to the data acquisition information;
the first protocol conversion server judges whether the data acquisition instruction corresponds to the first data source;
when the data acquisition instruction does not correspond to the first data source, the first protocol conversion server forwards the data acquisition instruction to a corresponding second protocol conversion server;
the second protocol conversion server acquires corresponding resource data from the second data source according to the data acquisition instruction; the resource data adopts a transmission protocol outside the video network and cannot be transmitted in the video network;
the second protocol conversion server performs protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returns the target resource data to the first protocol conversion server;
the first protocol conversion server returns the target resource data to the front-end equipment;
after the step of determining whether the data obtaining instruction corresponds to the first data source, the first protocol conversion server further includes:
and when the data acquisition instruction corresponds to the first data source, the first protocol conversion server acquires corresponding target resource data from the first data source according to the data acquisition instruction.
2. The method of claim 1, wherein the first protocol conversion server returning the target resource data to the head-end device comprises:
the first protocol conversion server splits the target resource data according to an HLS protocol to obtain fragmented resource data and an index file;
and the first protocol conversion server locally stores the fragment resource data and sends the index file to the front-end equipment.
3. The method of claim 2, wherein the index file comprises: indexing a mapping relation between the subfiles and the fragment resource data; after the step of returning the target resource data to the front-end device by the first protocol conversion server, the method further includes:
the front-end device sends a fragment data acquisition instruction to the first protocol conversion server according to the index file, wherein the fragment data acquisition instruction comprises: a target index subfile;
and the first protocol conversion server returns corresponding target fragment resource data to the front-end equipment according to the target index subfile.
4. The method of claim 1, wherein the front-end device receives data acquisition information, comprising:
the front-end equipment displays a configuration interface;
and the front-end equipment receives the data acquisition information input by the configuration interface.
5. An internet of view system, comprising: the system comprises front-end equipment, a first protocol conversion server and a second protocol conversion server, wherein the front-end equipment is in communication connection with the first protocol conversion server through a video network, the first protocol conversion server is in communication connection with the second protocol conversion server through the video network, a first data source is in communication connection with the first protocol conversion server, a plurality of second data sources are in communication connection with the second protocol conversion server, the first data source and the second data sources adopt different transmission protocols, and the first protocol conversion server is a main protocol conversion server which is responsible for monitoring resource aggregation and is connected with the plurality of second protocol conversion servers;
the front-end device includes: the receiving module is used for receiving data acquisition information;
a request sending module, configured to send a data obtaining instruction to the first protocol conversion server by using the data obtaining information;
the first protocol conversion server includes: the judging module is used for judging whether the data acquisition instruction corresponds to the first data source;
the request forwarding module is used for forwarding the data acquisition instruction to a corresponding second protocol conversion server when the data acquisition instruction does not correspond to the first data source;
the second protocol conversion server includes: the first acquisition module is used for acquiring corresponding resource data from the second data source according to the data acquisition instruction; the resource data adopts a transmission protocol outside the video network and cannot be transmitted in the video network;
the protocol conversion module is used for carrying out protocol conversion on the resource data to obtain target resource data which adopts the same transmission protocol as the first protocol conversion server, and returning the target resource data to the first protocol conversion server;
the first protocol conversion server includes: a return module, configured to return the target resource data to the front-end device;
the first protocol conversion server further includes:
and the second acquisition module is used for acquiring corresponding target resource data from the first data source according to the data acquisition instruction when the data acquisition instruction corresponds to the first data source.
6. The video networking system of claim 5, wherein the return module comprises:
the splitting submodule is used for splitting the target resource data according to an HLS protocol to obtain fragmented resource data and an index file;
and the sending submodule is used for locally storing the fragment resource data and sending the index file to the front-end equipment.
7. The video networking system of claim 6, wherein the index file comprises: indexing a mapping relation between the subfiles and the fragment resource data;
the front-end equipment further comprises: a transmission unit: the server is configured to send a fragment data acquisition instruction to the first protocol conversion server according to the index file, where the fragment data acquisition instruction includes: a target index subfile;
the first protocol conversion server further includes: and the return unit is used for returning the corresponding target fragment resource data to the front-end equipment according to the target index subfile.
8. The video networking system of claim 5, wherein the receiving module comprises:
the display sub-module is used for displaying the configuration interface;
and the receiving submodule is used for receiving the data acquisition information input by the configuration interface.
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