CN110798645B - Alarm method and system based on video network - Google Patents
Alarm method and system based on video network Download PDFInfo
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- CN110798645B CN110798645B CN201810866723.8A CN201810866723A CN110798645B CN 110798645 B CN110798645 B CN 110798645B CN 201810866723 A CN201810866723 A CN 201810866723A CN 110798645 B CN110798645 B CN 110798645B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
Abstract
The embodiment of the invention provides an alarm method and system based on a video network, wherein the method comprises the following steps: the second video network node server receives an alarm request message from the first video network terminal through the first video network node server; the second video network node server sends the alarm request message to a second video network terminal, and determines a target video network terminal in a plurality of third video network terminals according to the position information contained in the alarm request message, wherein the second video network terminal is used for sending a video call request message to the second video network node server according to the alarm request message; and the second video network node server forwards the video call request message to the target video network terminal, and the second video network terminal and the target video network terminal perform video call operation. The embodiment of the invention does not need to use the Internet, does not need equipment such as a switch, a router and the like, has lower delay rate and packet loss rate of the data packet, and has higher reliability and safety.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to an alarm method based on the video networking and an alarm system based on the video networking.
Background
The Geographic Information System (GIS) is a particular spatial Information System of great importance. The system is a technical system for collecting, storing, managing, operating, analyzing, displaying and describing relevant geographic distribution data in the whole or partial earth surface (including the atmosphere) space under the support of a computer hardware and software system.
At present, an alarm scheme based on a GIS needs to rely on the Internet, firstly carries out networking in a specific range through a series of devices such as a switch, a router and the like, and then can realize one-key alarm through complicated operation, and the real-time performance is not ensured, and the reliability is not ensured due to the influence of the network and the like.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a video network based alarm method and a corresponding video network based alarm system that overcome or at least partially solve the above problems.
In order to solve the above problem, a first aspect of an embodiment of the present invention discloses an alarm method based on a video network, where the method is applied to a video network, the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, the second video network node server communicates with the second video network terminal and the third video network terminal, and the second video network terminal communicates with the third video network terminal, and the method includes: the second video network node server receives an alarm request message from the first video network terminal through the first video network node server, wherein the alarm request message is an alarm request message of the third video network terminal displayed on the first video network terminal; the second video network node server sends the alarm request message to the second video network terminal, and determines a target video network terminal in a plurality of third video network terminals according to position information contained in the alarm request message, wherein the second video network terminal is used for sending a video call request message to the second video network node server according to the alarm request message; and the second video network node server forwards the video call request message to the target video network terminal so as to enable the second video network terminal and the target video network terminal to carry out video call operation.
Optionally, the determining, by the second node server of the video networking, a target video networking terminal among the plurality of third video networking terminals according to the location information included in the alarm request message includes: and the second video network node server determines at least one third video network terminal, which has a distance meeting a preset requirement with the position information contained in the alarm request message, among the plurality of third video network terminals and serves as the target video network terminal.
A second aspect of the embodiments of the present invention discloses an alarm method based on a video network, which is applied to a video network, wherein the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, the second video network node server communicates with the second video network terminal and the third video network terminal, and the second video network terminal communicates with the third video network terminal, the method includes: the second video network terminal receives an alarm request message from the first video network terminal through the first video network node server and the second video network node server, wherein the alarm request message is an alarm request message of the third video network terminal displayed on the first video network terminal, and the second video network node server is used for determining a target video network terminal in the third video network terminals according to position information contained in the alarm request message; the second video network terminal sends a video call request message to the second video network node server according to the alarm request message, and the second video network node server is used for forwarding the video call request message to the target video network terminal; and the second video network terminal and the target video network terminal carry out video call operation.
Optionally, the second node server of the video networking is configured to determine, among the plurality of third video networking terminals, at least one third video networking terminal whose distance from the location information included in the alarm request message meets a preset requirement as the target video networking terminal.
Optionally, the second video networking terminal and the target video networking terminal transmit audio and video data at a data link layer to perform a video call operation.
A third aspect of the embodiments of the present invention discloses an alarm system based on a video network, where the system is applied to a video network, the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, the second video network node server communicates with the second video network terminal and the third video network terminal, the second video network terminal communicates with the third video network terminal, and the second video network node server includes: a receiving module, configured to receive, by the first video network node server, an alarm request message from the first video network terminal, where the alarm request message is an alarm request message of the third video network terminal displayed on the first video network terminal; the determining module is used for sending the alarm request message to the second video network terminal, determining a target video network terminal in the third video network terminals according to position information contained in the alarm request message, and sending a video call request message to the second video network node server according to the alarm request message by the second video network terminal; and the forwarding module is used for forwarding the visual call request message to the target video networking terminal so as to enable the second video networking terminal and the target video networking terminal to carry out visual call operation.
Optionally, the determining module is configured to determine, as the target video network terminal, at least one third video network terminal, in the plurality of third video network terminals, where a distance between the target video network terminal and the location information included in the alarm request message meets a preset requirement.
A fourth aspect of the embodiments of the present invention discloses an alarm system based on a video network, where the system is applied to a video network, the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, the second video network node server communicates with the second video network terminal and the third video network terminal, the second video network terminal communicates with the third video network terminal, and the second video network terminal includes: a receiving module, configured to receive, by the first video networking node server and the second video networking node server, an alarm request message from the first video networking terminal, where the alarm request message is an alarm request message of the third video networking terminal displayed on the first video networking terminal, and the second video networking node server is configured to determine, according to location information included in the alarm request message, a target video networking terminal among the third video networking terminals; a sending module, configured to send a video call request message to the second video network node server according to the alarm request message, where the second video network node server is configured to forward the video call request message to the target video network terminal; and the call module is used for carrying out the video call operation on the second video network terminal and the target video network terminal.
Optionally, the second node server of the video networking is configured to determine, among the plurality of third video networking terminals, at least one third video networking terminal whose distance from the location information included in the alarm request message meets a preset requirement as the target video networking terminal.
Optionally, the call module is configured to perform a video call operation on the second video networking terminal and the target video networking terminal by transmitting audio and video data on a data link layer.
The embodiment of the invention has the following advantages:
the embodiment of the invention is applied to the video network, and the video network comprises a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, wherein the first video network node server is respectively communicated with the first video network terminal and the second video network node server, the second video network node server is respectively communicated with the second video network terminal and the third video network terminal, and the second video network terminal is communicated with the third video network terminal.
In the embodiment of the invention, the second video network node server receives the alarm request message from the first video network terminal through the first video network node server, wherein the alarm request message is the alarm request message of the third video network terminal displayed on the first video network terminal. And the second video network node server sends the alarm request message to the second video network terminal, and determines a target video network terminal in a plurality of third video network terminals according to the position information contained in the alarm request message, wherein the second video network terminal is used for sending a video call request message to the second video network node server according to the alarm request message. And the second video network node server forwards the video call request message to the target video network terminal so as to enable the second video network terminal and the target video network terminal to carry out video call operation.
The embodiment of the invention applies the characteristics of the video network, each video network terminal and each video network node server are arranged in the video network, the alarm mechanism based on the video network protocol does not need to use the Internet, and devices such as a switch, a router and the like are not needed, the delay rate and the packet loss rate of the data packet are lower, and the reliability and the safety are higher.
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 flowchart illustrating the steps of an embodiment of a video network-based alerting method of the present invention;
FIG. 6 is a flow chart of steps in another embodiment of a video network-based alerting method of the present invention;
FIG. 7 is a block diagram of an embodiment of an alarm method within a video network of the present invention;
FIG. 8 is a block diagram of an embodiment of a video network based alarm system of the present invention;
fig. 9 is a block diagram of another embodiment of the alarm system based on the video network.
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 internet of vision technology employs network Packet Switching to satisfy the demand of Streaming (translated into Streaming, and continuous broadcasting, which is a data transmission technology, converting received data into a stable and continuous stream, and continuously transmitting the stream, so that the sound heard by the user or the image seen by the user is very smooth, and the user can start browsing on the screen before the whole data is transmitted). 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 (circled part), 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 (downstream network interface module 301, upstream network interface module 302), the switching engine module 303, and the CPU module 304 are mainly included.
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, 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) and obtaining the token generated by the code rate control module.
If the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the video networking destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA 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.
Terminal device：
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 3 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 |
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (e.g. various protocol packets, multicast data packets, unicast data packets, etc.), there are at most 256 possibilities, 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 types of different datagrams, and is 64 bytes if the type of the datagram is a variety of protocol packets, or is 1056 bytes if the type of the datagram is a unicast packet, but 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 a Label of Multi-Protocol Label switching (MPLS), and assuming that there are two connections between a device a and a device B, there are 2 labels for a packet from the device a to the device B, and 2 labels for a 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 embodiments of the present invention is provided, following a protocol of the video network, after receiving the alarm request message in the video network, the second video network node server forwards the alarm request message to the second video network terminal, and receives a video call request message sent by the second video network terminal, where the video call request message is used for performing a video call operation between the second video network terminal and a target video network terminal.
Referring to fig. 5, a flowchart illustrating steps of an embodiment of an alarm method based on a video network according to the present invention is shown, where the method may be applied to a video network, the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, respectively, the second video network node server communicates with the second video network terminal and the third video network terminal, respectively, and the second video network terminal communicates with the third video network terminal, and the method specifically includes the following steps:
In the embodiment of the invention, the first video network terminal is used for displaying various state information of the third video network terminal, such as temperature information, wind speed information, air pressure information and the like. And when the state information of the third video network terminal reaches the set alarm threshold value, the third video network terminal generates an alarm request message of the third video network terminal. The alert request message may include, but is not limited to: attribute information, alarm information and the like of the third video network terminal. Wherein, the attribute information of the third video network terminal may include: name, number, location, etc. of the third video network terminal. The alarm information may include: alarm type, alarm level, alarm content, etc. The alarm types may in turn include: fire, flood, etc. The embodiment of the present invention does not specifically limit the alarm request message.
In the embodiment of the invention, after the first video network terminal generates the alarm request message of the third video network terminal, the alarm request message is sent to the first video network node server. The first video network node server is used for forwarding the alarm request message to the second video network node server.
In the embodiment of the invention, the second video network terminal is used for carrying out alarm command operation according to the alarm request message. Specifically, the second video network terminal can perform video call operation with the target video network terminal. And the target video network terminal belongs to a third video network terminal. And when the second video network node server determines a target video network terminal from the plurality of third video network terminals, determining at least one third video network terminal, the distance between which and the position information contained in the alarm request message meets the preset requirement, as the target video network terminal. That is, the target video network terminal may be a third video network terminal near the third video network terminal in the alarm state, and generally, the target video network terminal is one or more third video network terminals closest to the third video network terminal in the alarm state. Thus, the preset requirement may be the closest distance. The embodiment of the present invention does not specifically limit the preset requirements.
In the embodiment of the invention, the second video network node server forwards the video call request message to the target video network terminal, so as to request the target video network terminal to transmit the audio and video data with the second video network terminal sending the video call request message. And in the standby state of the target video network terminal, the second video network terminal can perform bidirectional communication of audio and video data with the target video network terminal.
Based on the above characteristics of the video network, one of the core concepts of the embodiments of the present invention is provided, following a protocol of the video network, after receiving an alarm request message in the video network, the second video network terminal sends a video call request message to the second video network node server, where the video call request message is used for the second video network terminal to perform a video call operation with a target video network terminal.
Referring to fig. 6, a flowchart illustrating steps of another embodiment of an alarm method based on a video network according to the present invention is shown, where the method may be applied to a video network, where the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, respectively, the second video network node server communicates with the second video network terminal and the third video network terminal, respectively, and the second video network terminal communicates with the third video network terminal, and the method specifically includes the following steps:
In the embodiment of the present invention, the description of the first video network terminal, the second video network terminal, the first video network node server, and the second video network node server may refer to the relevant description in the above embodiments, and will not be described herein again.
And step 602, the second video network terminal sends a video call request message to the second video network node server according to the alarm request message.
And step 603, the second video network terminal and the target video network terminal perform video call operation.
In the embodiment of the present invention, the target video network terminal may be at least one third video network terminal in which the second video network node server determines, in the third video network terminal, that a distance from the position information included in the alarm request message satisfies a preset requirement.
In a preferred embodiment of the present invention, the second video network terminal and the target video network terminal transmit audio and video data at a data link layer to perform a video call operation. The audio and video data are transmitted in the data link layer, so that the problem of loss or delay caused by transmission of the audio and video data in layers above the data link layer is solved.
Based on the above description about an embodiment of the alarm method based on the video network, an alarm method in the video network is described below, and as shown in fig. 7, the method involves a first video network terminal (GIS application platform), a second video network terminal (video network terminal), a third video network terminal (fixed device and/or mobile device), a first video network node server (message forwarding server) and a second video network node server (video network central server). And the GIS application platform sends an alarm request message to the message forwarding server according to the displayed state of the fixed equipment and/or the mobile equipment. The message forwarding server directly forwards the alarm request message to the video network center server. And the video network center server sends the alarm request message to the video network terminal. And after receiving the alarm request message, the video networking terminal sends a video call request message to the video networking central server. The visual networking center server forwards the visual call request message to the fixed equipment and/or the mobile equipment nearby the alarming fixed equipment and/or the mobile equipment. The video network terminal can carry out video call operation with the nearby fixed equipment and/or mobile equipment, real-time transmission of audio and video data in the video network is achieved, and an alarm function in the video network is achieved.
The embodiment of the invention is applied to the video network, and the video network comprises a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, wherein the first video network node server is respectively communicated with the first video network terminal and the second video network node server, the second video network node server is respectively communicated with the second video network terminal and the third video network terminal, and the second video network terminal is communicated with the third video network terminal.
In the embodiment of the invention, the second video network node server receives the alarm request message from the first video network terminal through the first video network node server, wherein the alarm request message is the alarm request message of the third video network terminal displayed on the first video network terminal. And the second video network node server sends the alarm request message to the second video network terminal, and determines a target video network terminal in a plurality of third video network terminals according to the position information contained in the alarm request message, wherein the second video network terminal is used for sending a video call request message to the second video network node server according to the alarm request message. And the second video network node server forwards the video call request message to the target video network terminal so as to enable the second video network terminal and the target video network terminal to carry out video call operation.
The embodiment of the invention applies the characteristics of the video network, each video network terminal and each video network node server are arranged in the video network, the alarm mechanism based on the video network protocol does not need to use the Internet, and devices such as a switch, a router and the like are not needed, the delay rate and the packet loss rate of the data packet are lower, and the reliability and the safety are higher.
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. 8, a block diagram of an embodiment of an alarm system based on a video network according to the present invention is shown, where the system may be applied to a video network, the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, the second video network node server communicates with the second video network terminal and the third video network terminal, and the second video network terminal communicates with the third video network terminal, where the second video network node server in the system may specifically include the following modules:
a receiving module 801, configured to receive, by a first video network node server, an alarm request message from a first video network terminal, where the alarm request message is an alarm request message of a third video network terminal displayed on the first video network terminal.
A determining module 802, configured to send the alarm request message to a second video network terminal, and determine a target video network terminal among multiple third video network terminals according to the location information included in the alarm request message, where the second video network terminal is configured to send a video call request message to a second video network node server according to the alarm request message.
And a forwarding module 803, configured to forward the video call request message to the target video networking terminal, so that the second video networking terminal and the target video networking terminal perform a video call operation.
In a preferred embodiment of the present invention, the determining module 802 is configured to determine, as the target internet-of-view terminal, at least one third internet-of-view terminal, among the plurality of third internet-of-view terminals, where a distance between the target internet-of-view terminal and the location information included in the alarm request message satisfies a preset requirement.
Referring to fig. 9, a block diagram of another embodiment of an alarm system based on a video network according to the present invention is shown, where the system may be applied to a video network, the video network includes a first video network terminal, a second video network terminal, a third video network terminal, a first video network node server and a second video network node server, the first video network node server communicates with the first video network terminal and the second video network node server, the second video network node server communicates with the second video network terminal and the third video network terminal, and the second video network terminal communicates with the third video network terminal, where the second video network terminal in the system may specifically include the following modules:
a receiving module 901, configured to receive, through a first video network node server and a second video network node server, an alarm request message from a first video network terminal, where the alarm request message is an alarm request message of a third video network terminal displayed on the first video network terminal, and the second video network node server is configured to determine, according to location information included in the alarm request message, a target video network terminal among a plurality of third video network terminals.
A sending module 902, configured to send a video call request message to a second video network node server according to the alarm request message, where the second video network node server is configured to forward the video call request message to the target video network terminal.
And the conversation module 903 is used for carrying out a video conversation operation on the second video network terminal and the target video network terminal.
In a preferred embodiment of the present invention, the second node server is configured to determine, among the plurality of third nodes, at least one third node that satisfies a preset requirement with respect to a distance from the location information included in the alarm request message, as the target node.
In a preferred embodiment of the present invention, the call module 903 is configured to perform a video call operation by transmitting audio and video data between the second video network terminal and the target video network terminal at a data link layer.
For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The alarm method based on the video network and the alarm system based on the video network provided by the invention are introduced in detail, and the principle and the implementation mode of the invention are explained by applying specific examples in the text, and the description of the examples 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 (10)
1. An alarm method based on video networking, wherein the method is applied to video networking, the video networking comprises a first video networking terminal, a second video networking terminal, a third video networking terminal, a first video networking node server and a second video networking node server, the first video networking node server is respectively communicated with the first video networking terminal and the second video networking node server, the second video networking node server is respectively communicated with the second video networking terminal and the third video networking terminal, and the second video networking terminal is communicated with the third video networking terminal, the method comprises the following steps:
the second video network node server receives an alarm request message from the first video network terminal through the first video network node server, wherein the alarm request message is an alarm request message of the third video network terminal displayed on the first video network terminal; the first video network terminal is used for sending an alarm request message to the first video network node server according to the displayed states of the fixed equipment and/or the mobile equipment; the alarm request message is generated by the third video network terminal when the state information of the third video network terminal reaches a set alarm threshold value;
the second video network node server sends the alarm request message to the second video network terminal, and determines a target video network terminal in a plurality of third video network terminals according to position information contained in the alarm request message, wherein the second video network terminal is used for sending a video call request message to the second video network node server according to the alarm request message;
the second video network node server forwards the video call request message to the target video network terminal so as to enable the second video network terminal and the target video network terminal to carry out video call operation; and the second video network terminal is used for carrying out alarm command operation according to the alarm request message.
2. The warning method based on the video network as claimed in claim 1, wherein the second video network node server determines a target video network terminal among the plurality of third video network terminals according to the location information included in the warning request message, comprising:
and the second video network node server determines at least one third video network terminal, which has a distance meeting a preset requirement with the position information contained in the alarm request message, among the plurality of third video network terminals and serves as the target video network terminal.
3. An alarm method based on video networking, wherein the method is applied to video networking, the video networking comprises a first video networking terminal, a second video networking terminal, a third video networking terminal, a first video networking node server and a second video networking node server, the first video networking node server is respectively communicated with the first video networking terminal and the second video networking node server, the second video networking node server is respectively communicated with the second video networking terminal and the third video networking terminal, and the second video networking terminal is communicated with the third video networking terminal, the method comprises the following steps:
the second video network terminal receives an alarm request message from the first video network terminal through the first video network node server and the second video network node server, wherein the alarm request message is an alarm request message of the third video network terminal displayed on the first video network terminal, and the second video network node server is used for determining a target video network terminal in the third video network terminals according to position information contained in the alarm request message;
the second video network terminal sends a video call request message to the second video network node server according to the alarm request message, and the second video network node server is used for forwarding the video call request message to the target video network terminal;
and the second video network terminal and the target video network terminal carry out video call operation.
4. The warning method based on the video network as claimed in claim 3, wherein the second video network node server is configured to determine, as the target video network terminal, at least one third video network terminal among the plurality of third video network terminals, whose distance from the location information included in the warning request message satisfies a preset requirement.
5. The alarm method based on the video network as claimed in claim 3, wherein the second video network terminal and the target video network terminal transmit audio and video data at a data link layer to perform a video call operation.
6. The utility model provides an alarm system based on video networking, its characterized in that, the system is applied to in the video networking, the video networking includes first video networking terminal, second video networking terminal, third video networking terminal, first video networking node server and second video networking node server, first video networking node server respectively with first video networking terminal with second video networking node server communicates, second video networking node server respectively with second video networking terminal with third video networking terminal communicates, second video networking node server includes:
a receiving module, configured to receive, by the first video network node server, an alarm request message from the first video network terminal, where the alarm request message is an alarm request message of the third video network terminal displayed on the first video network terminal; the first video network terminal is used for sending an alarm request message to the first video network node server according to the displayed states of the fixed equipment and/or the mobile equipment; the alarm request message is generated by the third video network terminal when the state information of the third video network terminal reaches a set alarm threshold value;
the determining module is used for sending the alarm request message to the second video network terminal, determining a target video network terminal in the third video network terminals according to position information contained in the alarm request message, and sending a video call request message to the second video network node server according to the alarm request message by the second video network terminal;
the forwarding module is used for forwarding the visual call request message to the target video networking terminal so as to enable the second video networking terminal and the target video networking terminal to carry out visual call operation; and the second video network terminal is used for carrying out alarm command operation according to the alarm request message.
7. The warning system based on the video network as claimed in claim 6, wherein the determining module is configured to determine, as the target video network terminal, at least one third video network terminal among the plurality of third video network terminals, whose distance from the location information included in the warning request message satisfies a preset requirement.
8. The utility model provides an alarm system based on video networking, its characterized in that, the system is applied to in the video networking, the video networking includes first video networking terminal, second video networking terminal, third video networking terminal, first video networking node server and second video networking node server, first video networking node server respectively with first video networking terminal with second video networking node server communicates, second video networking node server respectively with second video networking terminal with third video networking terminal communicates, second video networking terminal includes:
a receiving module, configured to receive, by the first video networking node server and the second video networking node server, an alarm request message from the first video networking terminal, where the alarm request message is an alarm request message of the third video networking terminal displayed on the first video networking terminal, and the second video networking node server is configured to determine, according to location information included in the alarm request message, a target video networking terminal among the third video networking terminals;
a sending module, configured to send a video call request message to the second video network node server according to the alarm request message, where the second video network node server is configured to forward the video call request message to the target video network terminal;
and the call module is used for carrying out the video call operation on the second video network terminal and the target video network terminal.
9. The warning system based on the visual networking according to claim 8, wherein the second visual networking node server is configured to determine, among the plurality of third visual networking terminals, at least one third visual networking terminal whose distance from the location information included in the warning request message satisfies a preset requirement as the target visual networking terminal.
10. The alarm system based on the video networking of claim 8, wherein the call module is configured to perform a video call operation by transmitting audio and video data between the second video networking terminal and the target video networking terminal on a data link layer.
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