CN110691033A - Monitoring data processing method and device and storage medium - Google Patents
Monitoring data processing method and device and storage medium Download PDFInfo
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- CN110691033A CN110691033A CN201910824749.0A CN201910824749A CN110691033A CN 110691033 A CN110691033 A CN 110691033A CN 201910824749 A CN201910824749 A CN 201910824749A CN 110691033 A CN110691033 A CN 110691033A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
Abstract
The embodiment of the invention provides a method, a device and a storage medium for processing monitoring data, wherein the method comprises the following steps: before acquiring monitoring data from the monitoring equipment, the monitoring access server initiates a network connection request to the monitoring equipment through the network equipment so as to establish a special network channel between the monitoring access server and the monitoring equipment; the monitoring access server sends a monitoring data acquisition request message to the monitoring equipment through the special network channel under the condition that the network equipment does not release the network resources of the special network channel; and the monitoring access server receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel under the condition that the network equipment does not release the network resources of the special network channel. The embodiment of the invention avoids the abandonment of the monitoring data and ensures that the monitoring access server can normally receive the monitoring data.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a method and an apparatus for processing monitoring data, and a computer-readable storage medium.
Background
The video network is a special network for transmitting high-definition video and a special protocol at high speed based on Ethernet hardware, is a higher-level form of the Ethernet and is a real-time network. The monitoring access server is used as a data source at the bottommost layer of the video network, and management of the monitoring device is achieved by calling a Software Development Kit (SDK) of the monitoring device.
Multiple layers of network equipment exist between the monitoring access server and the monitoring equipment, and multiple network channels can be established between the monitoring access server and the monitoring equipment by the multiple layers of network equipment. When the network environment where the monitoring access server and the monitoring device are located is unstable, data between the monitoring access server and the monitoring device can be transmitted between a plurality of network channels, and the situation that request data from the monitoring access server to the monitoring device and reply data from the monitoring device to the monitoring access server are transmitted in two network channels easily occurs. In data interaction supporting a Transmission Control Protocol (TCP), when request data and response data are not transmitted in the same network channel, the response data may be discarded, so that the monitoring access server cannot receive the response data, or the monitoring access server needs a long time to receive the response data.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a method and an apparatus for processing monitoring data, and a computer-readable storage medium, which overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention discloses a method for processing monitoring data, which is applied to a monitoring system, where the monitoring system includes: the system comprises a monitoring access server, monitoring equipment and network equipment, wherein the network equipment is respectively in communication connection with the monitoring access server and the monitoring equipment; the method comprises the following steps: before the monitoring access server acquires monitoring data from the monitoring equipment, initiating a network connection request to the monitoring equipment through the network equipment so as to establish a special network channel between the monitoring access server and the monitoring equipment; the monitoring access server sends a monitoring data acquisition request message to the monitoring equipment through the dedicated network channel under the condition that the network equipment does not release the network resources of the dedicated network channel; and the monitoring access server receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel under the condition that the network equipment does not release the network resources of the special network channel.
Optionally, the step of the monitoring access server initiating a network connection request to the monitoring device through the network device to establish a dedicated network channel between the monitoring access server and the monitoring device includes: the monitoring access server initiates a Transmission Control Protocol (TCP) connection request to the monitoring equipment through the network equipment so as to establish a TCP connection channel between the monitoring access server and the monitoring equipment.
Optionally, the step of sending, by the monitoring access server, a monitoring data acquisition request message to the monitoring device through the dedicated network channel under the condition that the network device does not release the network resource of the dedicated network channel includes: and the monitoring access server sends a hypertext transfer protocol (HTTP) request message to the monitoring equipment through the TCP connection channel under the condition that the network equipment does not update the routing table of the TCP connection channel, wherein the HTTP request message is used for acquiring monitoring data of the monitoring equipment.
Optionally, the step of receiving, by the monitoring access server through the dedicated network channel, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message when the network device does not release the network resource of the dedicated network channel includes: and the monitoring access server receives the monitoring data returned by the monitoring equipment according to the HTTP request message through the TCP connection channel under the condition that the network equipment does not update the routing table of the TCP connection channel.
Optionally, the monitoring data includes audio and video data and device status; the monitoring system also comprises a monitoring server in communication connection with the monitoring access server; after the step of receiving, by the monitoring access server, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message through the dedicated network channel, the method further includes: and the monitoring access server uploads the audio and video data and the equipment state to the monitoring server.
The embodiment of the invention also discloses a processing device of the monitoring data, which is applied to the monitoring access server in the monitoring system, the monitoring system also comprises monitoring equipment and network equipment, and the network equipment is respectively in communication connection with the monitoring access server and the monitoring equipment; the device comprises: a request module, configured to initiate a network connection request to the monitoring device through the network device before the monitoring access server obtains monitoring data from the monitoring device, so as to establish a dedicated network channel between the monitoring access server and the monitoring device; a sending module, configured to send a monitoring data acquisition request message to the monitoring device through the dedicated network channel when the network device does not release the network resource of the dedicated network channel; and the receiving module is used for receiving the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel under the condition that the network resources of the special network channel are not released by the network equipment.
Optionally, the request module is configured to initiate a transmission control protocol TCP connection request to the monitoring device through the network device, so as to establish a TCP connection channel between the monitoring access server and the monitoring device.
Optionally, the sending module is configured to send, to the monitoring device through the TCP connection channel, a hypertext transfer protocol HTTP request message when the network device does not update the routing table of the TCP connection channel, where the HTTP request message is used to obtain monitoring data of the monitoring device; the receiving module is configured to receive, through the TCP connection channel, the monitoring data returned by the monitoring device according to the HTTP request message when the network device does not update the routing table of the TCP connection channel; the monitoring data comprises audio and video data and equipment state; the monitoring system also comprises a monitoring server in communication connection with the monitoring access server; the device further comprises: and the uploading module is used for uploading the audio and video data and the equipment state to the monitoring server after the receiving module receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel.
The embodiment of the invention also discloses a device, 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 apparatus to perform one or more methods of processing monitoring data according to embodiments of the present invention.
The embodiment of the invention also discloses a computer readable storage medium, and a stored computer program enables a processor to execute the processing method of the monitoring data.
The embodiment of the invention has the following advantages:
the processing scheme of the monitoring data provided by the embodiment of the invention can be applied to a monitoring system, the monitoring system can comprise a monitoring access server, monitoring equipment and network equipment, and the network equipment can be respectively in communication connection with the monitoring access server and the monitoring equipment.
In the embodiment of the present invention, before the monitoring access server obtains the monitoring data from the monitoring device, the monitoring access server may initiate a network connection request to the monitoring device through the network device, so as to establish a dedicated network channel between the monitoring access server and the monitoring device. And under the condition that the network equipment does not release the network resources of the special network channel, the monitoring access server sends a monitoring data acquisition request message to the monitoring equipment through the special network channel. And under the condition that the network equipment does not release the network resources of the special network channel, the monitoring access server receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel. The embodiment of the invention establishes a special network channel between the monitoring access server and the monitoring equipment, so that the monitoring data acquisition request message and the monitoring data are transmitted in the special network channel, thereby avoiding the abandonment of the monitoring data and ensuring that the monitoring access server can normally receive the monitoring data.
Drawings
FIG. 1 is a flow chart illustrating steps of a method for processing monitoring data according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a monitoring resource obtaining method based on a video network according to an embodiment of the present invention;
fig. 3 is a block diagram of a monitoring data processing apparatus according to an embodiment of the present invention;
FIG. 4 is a networking diagram of a video network according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a hardware structure of a node server according to an embodiment of the present invention;
fig. 6 is a schematic hardware structure diagram of an access switch according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway 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.
Referring to fig. 1, a flowchart illustrating steps of a method for processing monitoring data according to an embodiment of the present invention is shown. The monitoring data processing method can be applied to a monitoring system, and the monitoring system can comprise a monitoring access server, a monitoring device and a network device. The network device may be in communication connection with the monitoring access server and the monitoring device, respectively. In practical applications, the monitoring system may include a plurality of monitoring access servers and a plurality of network devices, and the plurality of monitoring access servers and the plurality of monitoring devices may be communicatively connected through the network devices located in multiple layers.
If the network environment where the monitoring access server and the monitoring device are located is unstable, that is, when there is a route conflict between the multiple layers of network devices, the monitoring access server may not receive the monitoring data returned by the monitoring device after sending the monitoring data acquisition request message to the monitoring device. The technical scheme in the embodiment of the invention can solve the problem that the monitoring access server may not receive the monitoring data under the condition of unstable network environment.
The monitoring data processing method of the embodiment of the invention can comprise the following steps.
Step 101, before the monitoring access server obtains monitoring data from the monitoring device, the monitoring access server initiates a network connection request to the monitoring device through the network device to establish a dedicated network channel between the monitoring access server and the monitoring device.
In the embodiment of the invention, before the monitoring access server acquires the monitoring data from the monitoring equipment, a special network channel between the monitoring access server and the monitoring equipment is established. Specifically, the monitoring access server may initiate a network connection request to the monitoring device through the network device to establish a dedicated network channel.
In a preferred embodiment of the present invention, the monitoring access server may initiate a hypertext Transfer Protocol (HTTP) connection request to the monitoring device to establish a TCP connection channel. In practical applications, the monitoring access server may initiate a three-way handshake of TCP according to a network address of the monitoring device to initiate an HTTP request when establishing a TCP connection, and the monitoring device may return monitoring data to the monitoring access server through the TCP connection in response to the HTTP request. Specifically, after acquiring the network address of the monitoring device, the monitoring access server may send an HTTP connection request to an 80 port of the monitoring device through a random port, where the HTTP connection request reaches a TCP/IP protocol stack of a kernel after passing through a network card of the monitoring device, and may also be filtered by a Netfilter firewall (a module belonging to the kernel), and a TCP connection channel is finally established.
It should be noted why is the HTTP connection request to be implemented via TCP? Since TCP is a reliable, end-to-end connection-oriented protocol, HTTP is based on TCP without concern for various problems with data transmission.
Step 102, the monitoring access server sends a monitoring data acquisition request message to the monitoring device through the dedicated network channel under the condition that the network device does not release the network resource of the dedicated network channel.
In the embodiment of the present invention, after the dedicated network channel is established and before the network device does not release the network resource of the dedicated network channel, the monitoring access server may send the monitoring data acquisition request message to the monitoring device through the dedicated network channel. In practical applications, the monitoring access server may send an HTTP request message to the monitoring device through the TCP connection channel without updating the routing table of the TCP connection channel by the network device. The HTTP request message is used to obtain monitoring data of the monitoring device. An HTTP request message may consist of three parts: request line, request header and request body. The request line is used for describing a request mode of the monitoring access server, a requested resource name, a version number of the used HTTP and the like. The request header is used for describing which monitoring device is requested by the monitoring access server, and monitoring some environmental information of the access server, and the like. The request text is used for describing relevant information of the monitoring data to be acquired, such as the number, name, date and the like of the monitoring data.
Step 103, the monitoring access server receives the monitoring data returned by the monitoring device according to the monitoring data acquisition request message through the dedicated network channel under the condition that the network device does not release the network resource of the dedicated network channel.
In the embodiment of the present invention, after the monitoring access server sends the monitoring data acquisition request message to the monitoring device and before the network device does not release the network resource of the dedicated network channel, the monitoring access server may receive, through the dedicated network channel, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message. In practical application, the monitoring access server may receive, through the TCP connection channel, the monitoring data returned by the monitoring device according to the HTTP request message, when the network device does not update the routing table of the TCP connection channel. Specifically, the monitoring device may return an HTTP response message according to the monitoring data acquisition request message. The HTTP response message may consist of three parts: status code, response header, and entity content. The state code is used for representing the processing result of the monitoring equipment to the HTTP request message. The response header is used to describe basic information of the monitoring device. The entity content is used to represent the monitoring data.
In a preferred embodiment of the present invention, the monitoring data may include audio-video data, device status, and the like. The monitoring system may also include a monitoring server in communication with the monitoring access server. The monitoring server may be understood as a server superior to the monitoring access server. The monitoring server can perform unified management on the monitoring data acquired by the monitoring access server. Therefore, after the monitoring access server acquires the monitoring data, the monitoring data can be uploaded to the monitoring server, and the monitoring server performs unified management on the monitoring data.
The monitoring access server is used as a data source at the bottom layer of the video network, under the condition that the network environment is unstable, correct and wrong data can be obtained from the monitoring equipment, and the obtained data is uploaded to the monitoring server at the previous stage no matter the obtained data is correct or not, so that the monitoring access server and the monitoring server need to update the data frequently, and system resources are wasted. Based on the above-mentioned related description about a method for processing monitoring data, a method for acquiring monitoring resources based on the video network is introduced below. When unstable network addressing occurs between the monitoring access server and the monitoring device, the monitoring access server may send a message to the monitoring device, but may not necessarily receive data replied by the monitoring device. Therefore, before the monitoring access server performs formal data interaction with the monitoring device, the monitoring access server sends an HTTP request message to the monitoring device. And performing formal data interaction on a network channel generated in the interaction process between the monitoring access server and the monitoring equipment through the HTTP request message. Because the time interval between the establishment of the network path and the formal data interaction is short, the network device between the monitoring access server and the monitoring device does not update the routing table of the network path. Before the network device does not update the routing table of the network path, the data interaction between the monitoring access server and the monitoring device can be considered to be completed in an established network channel. If the data interaction is continuously carried out between the monitoring access server and the monitoring equipment, the network equipment can keep the current routing table unchanged, namely, a persistent network channel is realized.
Referring to fig. 2, a schematic diagram of a monitoring resource acquisition method based on a video network is shown. The monitoring access server and the hard disk video recorder are in a network environment with poor communication, and the network environment often has the condition of network addressing failure or packet loss, so that the problem that the monitoring access server cannot correctly acquire the monitoring resources of the hard disk video recorder is caused. Before acquiring the monitoring resource from the hard disk video recorder, the monitoring access server may establish a dedicated network channel between the monitoring access server and the hard disk video recorder, where the dedicated network channel may be a long connection established by TCP, and the dedicated network channel belongs to an end-to-end network channel. After the private network channel is established, the monitoring access server can perform data interaction with the hard disk video recorder through the private network channel. Specifically, the monitoring access server may perform transmission of a control protocol and video data with the hard disk video recorder through a dedicated network channel, so as to obtain monitoring resources from the hard disk video recorder.
The processing scheme of the monitoring data provided by the embodiment of the invention can be applied to a monitoring system, the monitoring system can comprise a monitoring access server, monitoring equipment and network equipment, and the network equipment can be respectively in communication connection with the monitoring access server and the monitoring equipment.
In the embodiment of the present invention, before the monitoring access server obtains the monitoring data from the monitoring device, the monitoring access server may initiate a network connection request to the monitoring device through the network device, so as to establish a dedicated network channel between the monitoring access server and the monitoring device. And under the condition that the network equipment does not release the network resources of the special network channel, the monitoring access server sends a monitoring data acquisition request message to the monitoring equipment through the special network channel. And under the condition that the network equipment does not release the network resources of the special network channel, the monitoring access server receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel. The embodiment of the invention establishes a special network channel between the monitoring access server and the monitoring equipment, so that the monitoring data acquisition request message and the monitoring data are transmitted in the special network channel, thereby avoiding the abandonment of the monitoring data and ensuring that the monitoring access server can normally receive the monitoring data.
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.
Referring to fig. 3, a block diagram of a monitoring data processing apparatus according to an embodiment of the present invention is shown. The processing device of the monitoring data can be applied to a monitoring access server in a monitoring system, the monitoring system also comprises monitoring equipment and network equipment, and the network equipment is respectively in communication connection with the monitoring access server and the monitoring equipment; the apparatus may specifically include the following modules.
A request module 31, configured to initiate a network connection request to the monitoring device through the network device before the monitoring access server obtains monitoring data from the monitoring device, so as to establish a dedicated network channel between the monitoring access server and the monitoring device;
a sending module 32, configured to send a monitoring data acquisition request message to the monitoring device through the dedicated network channel when the network device does not release the network resource of the dedicated network channel;
a receiving module 33, configured to receive, through the dedicated network channel, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message under the condition that the network device does not release the network resource of the dedicated network channel.
In a preferred embodiment of the present invention, the requesting module 31 is configured to initiate a transmission control protocol TCP connection request to the monitoring device through the network device, so as to establish a TCP connection channel between the monitoring access server and the monitoring device.
In a preferred embodiment of the present invention, the sending module 32 is configured to send a hypertext transfer protocol HTTP request message to the monitoring device through the TCP connection channel when the network device does not update the routing table of the TCP connection channel, where the HTTP request message is used to obtain monitoring data of the monitoring device;
the receiving module 33 is configured to receive, through the TCP connection channel, the monitoring data returned by the monitoring device according to the HTTP request message when the network device does not update the routing table of the TCP connection channel;
the monitoring data comprises audio and video data and equipment state;
the monitoring system also comprises a monitoring server in communication connection with the monitoring access server;
the device further comprises: and the uploading module 34 is configured to upload the audio and video data and the device status to the monitoring server after the receiving module 33 receives, through the dedicated network channel, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message.
For the embodiment of the processing device of the monitoring data, since it is basically similar to the embodiment of the processing method of the monitoring data, the description is relatively simple, and for relevant points, reference may be made to the partial description of the embodiment of the processing method of the monitoring data.
An embodiment of the present invention further provides an apparatus, including:
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 apparatus to perform one or more methods of processing monitoring data according to embodiments of the present invention.
The embodiment of the present invention further provides a computer-readable storage medium, in which a stored computer program causes a processor to execute the processing method of monitoring data according to the embodiment of the present invention.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
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.
Some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved the traditional Ethernet (Ethernet) to face the potentially huge first video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the video networking technology adopts Packet Switching 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. 4, 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: 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. 5, the system mainly includes a network interface module 501, a switching engine module 502, a CPU module 503, and a disk array module 504;
the network interface module 501, the CPU module 503 and the disk array module 504 all enter the switching engine module 502; the switching engine module 502 performs an operation of looking up the address table 505 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a corresponding queue of the packet buffer 506 based on the packet's steering information; if the queue of the packet buffer 506 is nearly full, it is discarded; the switching engine module 502 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 504 mainly implements control over the hard disk, including initialization, read-write, and other operations of the hard disk; the CPU module 503 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 505 (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 504.
The access switch:
as shown in fig. 6, the network interface module (downlink network interface module 601, uplink network interface module 602), switching engine module 603, and CPU module 604 are mainly included;
wherein, the packet (uplink data) coming from the downlink network interface module 601 enters the packet detection module 605; the packet detection module 605 detects whether the Destination Address (DA), the Source Address (SA), the type of the packet, and the length of the packet meet the requirements, if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 603, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 602 enters the switching engine module 603; the incoming data packet from the CPU module 604 enters the switching engine module 603; the switching engine module 603 performs an operation of looking up the address table 606 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 603 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 607 in association with the stream-id; if the queue of the packet buffer 607 is close to full, it is discarded; if the packet entering the switching engine module 603 is not from the downlink network interface to the uplink network interface, the packet is stored in the queue of the corresponding packet buffer 607 according to the packet guiding information; if the queue of the packet buffer 607 is close to full, it is discarded.
The switching engine module 603 polls all packet buffer queues and may include 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 608 is configured by the CPU module 604 and generates tokens for packet buffer queues going to the upstream network interface from all downstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 604 is mainly responsible for protocol processing with the node server, configuration of the address table 606, and configuration of the code rate control module 608.
Ethernet protocol conversion gateway：
As shown in fig. 7, the apparatus mainly includes a network interface module (a downlink network interface module 701, an uplink network interface module 702), a switching engine module 703, a CPU module 704, a packet detection module 705, a rate control module 708, an address table 706, a packet buffer 707, a MAC adding module 709, and a MAC deleting module 710.
Wherein, the data packet coming from the downlink network interface module 701 enters the packet detection module 705; the packet detection module 705 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length orframe 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 deleting module 710 subtracts MAC DA, MAC SA, length or frame type (2byte), and enters the corresponding receiving buffer, otherwise, discards;
the downlink network interface module 701 detects the sending buffer of the port, and if a packet exists, the downlink network interface module learns 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 MACSA of the ethernet coordination 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.
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, the apparatus and the computer-readable storage medium for processing monitoring data provided by the present invention are described in detail above, and a specific example is applied in the present disclosure 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 (10)
1. A processing method of monitoring data is applied to a monitoring system, and the monitoring system comprises the following steps: the system comprises a monitoring access server, monitoring equipment and network equipment, wherein the network equipment is respectively in communication connection with the monitoring access server and the monitoring equipment; the method comprises the following steps:
before the monitoring access server acquires monitoring data from the monitoring equipment, initiating a network connection request to the monitoring equipment through the network equipment so as to establish a special network channel between the monitoring access server and the monitoring equipment;
the monitoring access server sends a monitoring data acquisition request message to the monitoring equipment through the dedicated network channel under the condition that the network equipment does not release the network resources of the dedicated network channel;
and the monitoring access server receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel under the condition that the network equipment does not release the network resources of the special network channel.
2. The method for processing monitoring data according to claim 1, wherein the step of the monitoring access server initiating a network connection request to the monitoring device through the network device to establish a dedicated network channel between the monitoring access server and the monitoring device includes:
the monitoring access server initiates a Transmission Control Protocol (TCP) connection request to the monitoring equipment through the network equipment so as to establish a TCP connection channel between the monitoring access server and the monitoring equipment.
3. The method for processing monitoring data according to claim 2, wherein the step of sending, by the monitoring access server, the monitoring data acquisition request message to the monitoring device through the dedicated network channel under the condition that the network device does not release the network resource of the dedicated network channel includes:
and the monitoring access server sends a hypertext transfer protocol (HTTP) request message to the monitoring equipment through the TCP connection channel under the condition that the network equipment does not update the routing table of the TCP connection channel, wherein the HTTP request message is used for acquiring monitoring data of the monitoring equipment.
4. The method for processing monitoring data according to claim 2 or 3, wherein the step of receiving, by the monitoring access server through the dedicated network channel, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message when the network device does not release the network resource of the dedicated network channel includes:
and the monitoring access server receives the monitoring data returned by the monitoring equipment according to the HTTP request message through the TCP connection channel under the condition that the network equipment does not update the routing table of the TCP connection channel.
5. The processing method of the monitoring data according to claim 1, wherein the monitoring data comprises audio-video data and device status;
the monitoring system also comprises a monitoring server in communication connection with the monitoring access server;
after the step of receiving, by the monitoring access server, the monitoring data returned by the monitoring device according to the monitoring data acquisition request message through the dedicated network channel, the method further includes:
and the monitoring access server uploads the audio and video data and the equipment state to the monitoring server.
6. A processing device of monitoring data is characterized in that the processing device is applied to a monitoring access server in a monitoring system, the monitoring system also comprises a monitoring device and a network device, and the network device is respectively in communication connection with the monitoring access server and the monitoring device; the device comprises:
a request module, configured to initiate a network connection request to the monitoring device through the network device before the monitoring access server obtains monitoring data from the monitoring device, so as to establish a dedicated network channel between the monitoring access server and the monitoring device;
a sending module, configured to send a monitoring data acquisition request message to the monitoring device through the dedicated network channel when the network device does not release the network resource of the dedicated network channel;
and the receiving module is used for receiving the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel under the condition that the network resources of the special network channel are not released by the network equipment.
7. The apparatus according to claim 6, wherein the requesting module is configured to initiate a TCP connection request to the monitoring device through the network device to establish a TCP connection channel between the monitoring access server and the monitoring device.
8. The apparatus for processing monitoring data according to claim 7, wherein the sending module is configured to send a hypertext transfer protocol HTTP request message to the monitoring device through the TCP connection channel when the routing table of the TCP connection channel is not updated by the network device, where the HTTP request message is used to obtain the monitoring data of the monitoring device;
the receiving module is configured to receive, through the TCP connection channel, the monitoring data returned by the monitoring device according to the HTTP request message when the network device does not update the routing table of the TCP connection channel;
the monitoring data comprises audio and video data and equipment state;
the monitoring system also comprises a monitoring server in communication connection with the monitoring access server;
the device further comprises: and the uploading module is used for uploading the audio and video data and the equipment state to the monitoring server after the receiving module receives the monitoring data returned by the monitoring equipment according to the monitoring data acquisition request message through the special network channel.
9. An apparatus, comprising:
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 apparatus to perform a method of processing monitoring data according to one or more of claims 1 to 5.
10. A computer-readable storage medium, characterized in that it stores a computer program causing a processor to execute the method of processing monitoring data according to any one of claims 1 to 5.
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