CN112019563B - Video data forwarding and transmitting system and method - Google Patents
Video data forwarding and transmitting system and method Download PDFInfo
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- CN112019563B CN112019563B CN202010953254.0A CN202010953254A CN112019563B CN 112019563 B CN112019563 B CN 112019563B CN 202010953254 A CN202010953254 A CN 202010953254A CN 112019563 B CN112019563 B CN 112019563B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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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
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention discloses a video data forwarding and transmitting system and a method, wherein the system comprises a video equipment terminal and a user terminal, a data acquisition service module is deployed in a subnet where the video equipment terminal is located, a data transfer service module is deployed in the subnet where the user terminal is located, the video equipment terminal is connected with the data acquisition service module through a TCP/IP protocol, the data acquisition service module is connected with the data transfer service module through a SOCKET protocol, and the data transfer service module is connected with the user terminal through an HTTP protocol; the data acquisition service module registers software to the data transfer service module to establish communication connection; the data transfer service module acquires relevant parameter information of the video equipment terminal corresponding to the data acquisition service module, and the user terminal can acquire video streams by accessing the data transfer service module, so that the user can view live video or playback video. The invention solves the problem of data communication between the cross-network point and the video equipment under the subnet under the private network environment, and has high data security.
Description
Technical Field
The invention relates to the technical field of data transmission, in particular to a video data forwarding and transmitting system and method.
Background
With the rapid development of the mobile internet, more and more APPs appear on the market, but each APP has at least one server, and most server programs are deployed in a cloud server, for example: aliyun, tengchongyun, etc. The advantages of cloud-end are undoubtedly good, but the security and confidentiality of data cannot be sufficiently guaranteed, so that some large group enterprises have their own private networks (hereinafter referred to as "private networks"), such as: banks, railway offices.
In a private network environment, each area or network point has its own subnet, and usually cannot access a video device across subnets, and a conventional processing method is to perform port mapping, that is, port mapping commonly adopted by video devices in an access network, which requires that a subnet where a video terminal is located has an open IP (IP fixed) and an access port, and the subnet IP is exposed to users, which has a great limitation.
Disclosure of Invention
The technical problem to be solved by the invention is that in a private network environment, each area or network point has its own subnet, and usually, the video device cannot be accessed across subnets, and the conventional processing method is to perform port mapping, that is, the port mapping commonly adopted by the video device in the access network, so that the subnet where the video terminal is located is required to open an IP (IP fixed) and access ports, and the subnet IP can be exposed to users, so that the invention has a great limitation.
The invention aims to provide a video data forwarding and transmitting system and a video data forwarding and transmitting method, which aim to realize data communication between a cross-network point (area) and video equipment under a subnet under a private network environment.
The invention is realized by the following technical scheme:
in a first aspect, the invention provides a video data forwarding and transmitting system, which includes a video device terminal and a user terminal, wherein a data acquisition service module is deployed in a subnet where the video device terminal is located, a data transfer service module is deployed in the subnet where the user terminal is located, the video device terminal is connected with the data acquisition service module through a TCP/IP protocol, the data acquisition service module is connected with the data transfer service module through a SOCKET protocol, and the data transfer service module is connected with the user terminal through an HTTP protocol; the data transfer service module and the data acquisition service module are in one-to-many relationship;
the data acquisition service module registers software to the data transfer service module and establishes a many-to-one communication connection between the data acquisition service module and the data transfer service module; the data transfer service module acquires relevant parameter information of a video equipment terminal corresponding to the data acquisition service module, and a user terminal accesses the data transfer service module to acquire video streams (specifically, the user terminal accesses the data transfer service module according to the serial number of the data acquisition service module and the unique identifier of the video equipment to acquire video data), so that the user can view live videos or playback videos.
The working principle is as follows:
based on that in a private network environment, each area or network node has its own subnet, and cannot access the video device across subnets in general, a conventional processing method is to perform port mapping, that is, port mapping commonly adopted by video devices in an access network, which requires that a subnet where the video terminal is located has an open IP (IP fixed) and an access port, and the subnet IP is exposed to users, which has a great limitation.
The invention realizes communication connection through the registration system of the software layer to solve data transmission, and can effectively avoid potential network security risks. The design scheme is suitable for a video equipment terminal and a user terminal to be in the same local area network or a private network, a user checks live video or playback, a data acquisition service module is deployed in a subnet where the video equipment terminal is located, and a data transfer service module is deployed in the subnet where the user terminal is located; specifically, a data acquisition service module registers software to the data transfer service module, and establishes communication connection between the data acquisition service module and the data transfer service module; the user terminal accesses the data transfer service module according to the serial number of the data acquisition service module and the unique identifier of the video equipment to obtain video data, and the user can check live video or playback video.
The method has the advantages that firstly, the data acquisition service module registers to the data transfer service module, the data acquisition service module serves as a client, long connection is established according to the IP and the port of the data transfer service module, and the communication ports of the client are randomly distributed; the user terminal transmits the unique number of the data acquisition service module and the unique identifier of the video equipment as parameters to the data transfer service module, the data transfer service module can locate the data acquisition service module (namely a connecting channel), and the data acquisition service module further determines specific equipment according to the unique identifier of the video equipment and returns the specific equipment to the matched data of the user terminal. The network IP of the data acquisition service module and the IP of the video device are invisible to the user terminal all the time. In the traditional port mapping (NAT), the IP and port of the video device are disclosed in the network, and the user terminal serves as a client and actively acquires data according to the target IP and port, which has a potential risk, and if a technician illegally scans the port through a tool, the data of the video terminal may be intercepted.
The invention has the second advantage that in practical application, the IP address of the video equipment can be changed, the configuration of the port mapping (NAT) needs to be modified in a traditional mode, and the work is complicated and errors are easy to make for network maintenance personnel. If the scheme is used, the whole process does not need to modify any configuration, and because the unique identification of the video equipment is determined, the address and the mode for acquiring data do not change for the user terminal.
The invention solves the problem that the data communication is carried out between network points (areas) and video equipment under the sub-network under the private network environment, the IP and the access port of the sub-network where the video terminal is positioned are not required to be opened, the IP of the sub-network is not exposed to users, and the data security is high.
Further, the data acquisition service module performs software registration with the data transfer service module, and establishes communication connection between the data acquisition service module and the data transfer service module; the method specifically comprises the following steps:
the data acquisition service module configures the unique number of the data acquisition service module and the IP and the port of the data transfer service module;
when the data acquisition service module is started, long connection is established with the data transfer service module through the SOCKET, and the unique number of the data acquisition service module is transmitted through parameters.
Further, the data relay service module obtains relevant parameter information of the video device terminal, where the relevant information of the video device terminal includes a serial number of the video device, a connection mode (i.e., a network channel), and a device address.
Furthermore, the video equipment terminal comprises a plurality of video acquisition cameras and video storage equipment, and video data acquired by the video acquisition cameras are correspondingly stored in the video storage equipment.
Furthermore, the video equipment terminal and the user terminal are in the same local area network or private network.
On the other hand, the invention also provides a video data forwarding transmission method, which is applied to the video data forwarding transmission system and comprises the following steps:
the data acquisition service module performs software registration to a data transfer service module and establishes a many-to-one communication connection between the data acquisition service module and the data transfer service module; the data transfer service module acquires relevant parameters of a video equipment terminal, wherein the relevant parameters comprise the serial number, the connection mode (namely a network channel) and the equipment address of the video equipment;
the user terminal sends a live video request or a video playback request to the data transfer service module, the data transfer service module is accessed by taking the serial number of the data acquisition service and the unique identifier of the equipment as parameters, and the data transfer service module acquires corresponding video data from the data acquisition service module to realize the view of live video or video playback by the user.
Further, the data acquisition service module performs software registration to the data transfer service module, and establishes communication connection between the data acquisition service module and the data transfer service module; the method specifically comprises the following steps:
firstly, a data acquisition service module configures the unique number of the data acquisition service module and the IP and the port of a data transfer service module;
and secondly, when the data acquisition service module is started, long connection is established with the data transfer service module through the SOCKET, and the unique number of the data acquisition service module is transmitted through parameters.
Furthermore, the video equipment terminal comprises a plurality of video acquisition cameras and video storage equipment, and video data acquired by the video acquisition cameras are correspondingly stored in the video storage equipment.
Furthermore, the video equipment terminal and the user terminal are in the same local area network or private network.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention solves the problem that the data communication is carried out between network points (areas) and video equipment under the sub-network under the private network environment, the IP and the access port of the sub-network where the video terminal is positioned are not required to be opened, the IP of the sub-network is not exposed to users, and the data security is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a design diagram of a video data forwarding and transmitting system according to the present invention.
Fig. 2 is a data flow diagram of live video transmission according to embodiment 1 of the present invention.
Fig. 3 is a data flow diagram of video playback transmission according to embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example" or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrase "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the scope of the present invention.
Examples
As shown in fig. 1, the present invention provides a video data forwarding transmission system, which is implemented by live video transmission:
the system comprises a video equipment terminal and a user terminal, wherein a data acquisition service module is deployed in a subnet where the video equipment terminal is located, a data transfer service module is deployed in the subnet where the user terminal is located, the video equipment terminal is connected with the data acquisition service module through a TCP/IP protocol, the data acquisition service module is connected with the data transfer service module through an SOCKET protocol, and the data transfer service module is connected with the user terminal through an HTTP protocol; the data transfer service module and the data acquisition service module are in one-to-many relationship;
the data acquisition service module performs software registration to the data transfer service module and establishes a many-to-one communication connection between the data acquisition service module and the data transfer service module; the user terminal accesses the data transfer service module according to the serial number of the data acquisition service module and the unique identifier of the video equipment to obtain video data, so that the user can check the live video, the data format is HLS, and an RTSP protocol is adopted.
In this embodiment, the data acquisition service module performs software registration with the data relay service module, and establishes a communication connection between the data acquisition service module and the data relay service module; the method specifically comprises the following steps:
the data acquisition service module configures the unique number of the data acquisition service module and the IP and the port of the data transfer service module;
when the data acquisition service module is started, long connection is established with the data transfer service module through the SOCKET, and the unique number of the data acquisition service module is transmitted through parameters.
In this embodiment, the data relay service module obtains relevant parameter information of the video device terminal, where the relevant information of the video device terminal includes a serial number of the video device, a connection mode (i.e., a network channel), and a device address.
In this embodiment, the video device terminal includes a plurality of video capture cameras and a video storage device, and video data captured by the video capture cameras is correspondingly stored in the video storage device.
In this embodiment, the video device terminal and the user terminal are in the same local area network or private network.
In this embodiment, the data collection service module is a desktop program, provides an operation interface, can configure basic information such as a unique number of the data collection service module, an IP and a port of the data transfer service module, and can display a current connection state with the data transfer service module; when a request from the data transit service module is received, the latest data of the video equipment is collected, for example: real-time data of video equipment, current data of temperature and humidity equipment and the like.
The data transfer service module is a background service program, opens a communication port and heartbeat detection to the data acquisition service module, realizes network communication with each data acquisition service module, mainly forwards a request initiated by a user terminal to the corresponding data acquisition service module, and simultaneously forwards data returned by the data acquisition service module to the user terminal after format conversion, wherein the data comprises an equipment online state, video live broadcast data, video playback data and the like.
As shown in fig. 2, fig. 2 is a data flow diagram of a live video transmission.
The working principle is as follows:
based on that in a private network environment, each area or network node has its own subnet, and cannot access the video device across subnets in general, a conventional processing method is to perform port mapping, that is, port mapping commonly adopted by video devices in an access network, which requires that a subnet where the video terminal is located has an open IP (IP fixed) and an access port, and the subnet IP is exposed to users, which has a great limitation.
The invention realizes communication connection through the registration system of the software layer to solve data transmission, and can effectively avoid potential network security risks. The design scheme is suitable for a video equipment terminal and a user terminal to be in the same local area network or private network, a user checks live video or playback, a data acquisition service module is deployed in a subnet where the video equipment terminal is located, and a data transfer service module is deployed in the subnet where the user terminal is located; specifically, a data acquisition service module performs software registration with the data transfer service module, and establishes a communication connection between the data acquisition service module and the data transfer service module; the data transfer service module acquires relevant parameter information of the video equipment terminal corresponding to the data acquisition service module, and the user terminal can access the data transfer service module to acquire video streams, so that the user can view live videos or playback videos.
The invention solves the problem that the data communication is carried out between network points (areas) and video equipment under the sub-network under the private network environment, the IP and the access port of the sub-network where the video terminal is positioned are not required to be opened, the IP of the sub-network is not exposed to users, and the data security is high.
The invention has the advantages that firstly, the data acquisition service module registers to the data transfer service module, the data acquisition service module is used as a client, long connection is established according to the IP and the port of the data transfer service module, and the communication port of the client is randomly distributed; the user terminal transmits the unique number of the data acquisition service module and the unique identifier of the video equipment as parameters to the data transfer service module, the data transfer service module can locate the data acquisition service module (namely a connecting channel), and the data acquisition service module further determines specific equipment according to the unique identifier of the video equipment and returns the specific equipment to the matched data of the user terminal. The network IP of the data acquisition service module and the IP of the video device are invisible to the user terminal all the time. In the traditional port mapping (NAT), the IP and port of the video device are disclosed in the network, and the user terminal is used as a client to actively acquire data according to the target IP and port, which has a potential risk, and if a technician illegally scans the port through a tool, the data of the video terminal may be intercepted.
The invention has the second advantage that in practical application, the IP address of the video equipment can be changed, the configuration of the port mapping (NAT) needs to be modified in a traditional mode, and the work is complicated and errors are easy to make for network maintenance personnel. If the scheme is used, the whole process does not need to modify any configuration, and because the unique identification of the video equipment is determined, the address and the mode for acquiring data do not change for the user terminal.
Example 2
As shown in fig. 1 and fig. 3, the present embodiment is different from embodiment 1 in that the present embodiment is implemented by video playback transmission:
in this embodiment, the video device terminal includes a plurality of video capture cameras and a video storage device, and video data captured by the video capture cameras are correspondingly stored in the video storage device.
FIG. 3 is a data flow diagram of a video playback transmission, as shown in FIG. 3; the data flow of video playback and video live broadcast is basically consistent, but in the process of video playback transmission, the data acquisition service module does not directly acquire data from a video acquisition camera of a video equipment terminal, but acquires the data from a special video storage device, and the data format adopts m3u8, which is different from the live broadcast.
Example 3
As shown in fig. 1 to fig. 3, the difference between the present embodiment and the embodiments 1 and 2 is that the present embodiment provides a video data forwarding and transmitting method, which is applied to the video data forwarding and transmitting systems described in the embodiments 1 and 2, and the transmitting method includes:
the data acquisition service module performs software registration to a data transfer service module and establishes a many-to-one communication connection between the data acquisition service module and the data transfer service module; the data transfer service module acquires relevant parameters of a video equipment terminal, wherein the relevant parameters comprise the serial number, the connection mode (namely a network channel) and the equipment address of the video equipment;
the user terminal sends a live video request or a playback video request to the data transfer service module, the data transfer service module is accessed by taking the serial number of the data acquisition service and the unique identifier of the equipment as parameters, and the data transfer service module acquires corresponding video data from the data acquisition service module to realize the purpose that a user checks live video or plays back video.
In this embodiment, a data acquisition service module performs software registration with a data transfer service module, and establishes a communication connection between the data acquisition service module and the data transfer service module; the method specifically comprises the following steps:
firstly, a data acquisition service module configures a unique number of the data acquisition service module and an IP (Internet protocol) and a port of a data transfer service module;
and secondly, when the data acquisition service module is started, long connection is established with the data transfer service module through the SOCKET, and the unique number of the data acquisition service module is transmitted through parameters.
In this embodiment, the video device terminal includes a plurality of video capture cameras and a video storage device, and video data captured by the video capture cameras are correspondingly stored in the video storage device.
In this embodiment, the video device terminal and the user terminal are in the same local area network or private network.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A video data forwarding and transmitting system is characterized by comprising a video equipment terminal and a user terminal, wherein a data acquisition service module is deployed in a subnet where the video equipment terminal is located, a data transfer service module is deployed in the subnet where the user terminal is located, the video equipment terminal is connected with the data acquisition service module through a TCP/IP protocol, the data acquisition service module is connected with the data transfer service module through a SOCKET protocol, and the data transfer service module is connected with the user terminal through an HTTP protocol; the data transfer service module and the data acquisition service module are in one-to-many relationship;
the data acquisition service module performs software registration to the data transfer service module and establishes a many-to-one communication connection between the data acquisition service module and the data transfer service module; the data transfer service module acquires relevant parameter information of a video equipment terminal corresponding to the data acquisition service module, and a user terminal can acquire video stream by accessing the data transfer service module, so that the user can view live video or playback video;
the data acquisition service module registers software to the data transfer service module and establishes communication connection between the data acquisition service module and the data transfer service module; the method specifically comprises the following steps:
the data acquisition service module configures the unique number of the data acquisition service module and the IP and the port of the data transfer service module;
when the data acquisition service module is started, long connection is established with the data transfer service module through the SOCKET, and the unique number of the data acquisition service module is transmitted through parameters;
the data transfer service module acquires relevant parameter information of the video equipment terminal, wherein the relevant information of the video equipment terminal comprises the serial number, the connection mode and the equipment address of the video equipment;
the video equipment terminal and the user terminal are in the same local area network or private network.
2. The system according to claim 1, wherein the video device terminal comprises a plurality of video capturing cameras and a video storage device, and the video data captured by the video capturing cameras are stored in the video storage device correspondingly.
3. A video data forwarding transmission method, which is applied to the video data forwarding transmission system according to any one of claims 1 to 2, the transmission method comprising:
the data acquisition service module performs software registration to a data transfer service module and establishes a many-to-one communication connection between the data acquisition service module and the data transfer service module; the data transfer service module acquires relevant parameters of a video equipment terminal, wherein the relevant parameters comprise the serial number, the connection mode and the equipment address of the video equipment;
the user terminal sends a live video request or a playback video request to the data transfer service module, the data transfer service module is accessed by taking the equipment address as a parameter, and the data transfer service module acquires the relevant parameters of the video equipment terminal corresponding to the video data acquisition service module from the data acquisition service module, namely, the video stream can be acquired, so that the user can check the live video or the playback video;
the data acquisition service module performs software registration to a data transfer service module and establishes communication connection between the data acquisition service module and the data transfer service module; the method specifically comprises the following steps:
firstly, a data acquisition service module configures the unique number of the data acquisition service module and the IP and the port of a data transfer service module;
secondly, when the data acquisition service module is started, long connection is established with the data transfer service module through the SOCKET, and the unique number of the data acquisition service module is transmitted through parameters;
the video equipment terminal and the user terminal are in the same local area network or private network.
4. The method according to claim 3, wherein the video device terminal comprises a plurality of video capturing cameras and a video storage device, and the video data captured by the video capturing cameras are correspondingly stored in the video storage device.
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| 基于云技术和SSH反向隧道技术的视频监控机器人设计;李漭研等;《科技与创新》(第01期);全文 * |
| 解决大型煤炭企业中视频应用数据跨网关传输问题新方案;董永红等;《煤炭技术》(第05期);全文 * |
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