CN120568008A

CN120568008A - Monitoring networking and data transmission method and related equipment

Info

Publication number: CN120568008A
Application number: CN202410223831.9A
Authority: CN
Inventors: 徐秀宾; 刘云海
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2024-02-28
Filing date: 2024-02-28
Publication date: 2025-08-29

Abstract

The embodiments of the present application provide a monitoring network, a data transmission method and related equipment for reducing the difficulty of management and operation of an operation and maintenance platform. The monitoring network provided by the embodiments of the present application includes an operation and maintenance platform and multiple management groups. Each of the multiple management groups includes a main camera and at least one sub-camera. The main camera and the sub-camera are different complete products, and their installation positions are independent of each other. The main camera in each management group is configured with an external address and an internal address. The external address is the address for communication between the operation and maintenance platform and the multiple main cameras, and the internal address is the address for communication between the main camera and the sub-camera within the management group. The operation and maintenance platform communicates with the main camera through the external address to enable the operation and maintenance platform to manage the main camera. In each management group, the main camera communicates with at least one sub-camera through the internal address to enable the main camera to manage at least one sub-camera in the same management group.

Description

Monitoring networking and data transmission method and related equipment

Technical Field

The embodiment of the application relates to the field of monitoring, in particular to a monitoring networking and data transmission method and related equipment.

Background

With the development of the monitoring field, the scale of the monitoring networking is larger and larger, and the number of cameras in the networking is gradually increased. The monitoring network generally comprises a plurality of cameras at the front end and an operation and maintenance platform at the back end.

The camera is used for collecting images, videos and the like, and uploading the collected images and videos to the operation and maintenance platform. The operation and maintenance platform is used for realizing the management and operation (including configuration, upgrading, log acquisition, equipment state inspection and the like) of the cameras and presenting images and videos acquired by a plurality of cameras to a user.

With the increase of the number of cameras in the networking, the operation and maintenance platform needs to manage more cameras, so that the difficulty of the operation and maintenance platform in managing and operating a plurality of cameras in the networking is increased sharply. In addition, the number of old cameras in the existing networking is large, and the old cameras are difficult to manage. And the old camera has single function, can not meet new service requirements, and has high replacement cost.

Disclosure of Invention

The embodiment of the application provides a monitoring networking and data transmission method and related equipment, which are used for reducing the management operation difficulty of an operation platform.

In a first aspect, an embodiment of the present application provides a monitoring network. The monitoring network comprises an operation and maintenance platform and a plurality of management groups. Each of the plurality of management groups includes a main camera and at least one sub-camera. The main camera and the sub-camera are different whole products, and the installation positions of the main camera and the sub-camera are mutually independent. The primary cameras in each management group are configured with an external address and an internal address. The external address is the address of communication between the operation and maintenance platform and the plurality of main cameras, and the internal address is the address of communication between the main camera and the sub-camera in the management group. The operation and maintenance platform and the main camera are communicated through the external address, so that the operation and maintenance platform can manage the main camera. In each management group, the main camera and at least one sub camera realize the management of the main camera on at least one sub camera in the same management group through the communication of the internal address.

In the embodiment of the application, the operation and maintenance platform realizes the management of a plurality of cameras in the networking by taking the management group as a unit. The operation and maintenance platform directly manages the main camera through the external address, and the management of the sub-cameras is realized by the main camera in the same management group. Therefore, the operation and maintenance platform does not need to maintain communication with the sub-cameras in each management group, and does not need to independently manage and operate the sub-cameras. The number of cameras directly managed by the operation and maintenance platform is greatly reduced, so that the management operation and maintenance difficulty of the operation and maintenance platform is reduced, and the resource consumption of the operation and maintenance platform is reduced.

In an alternative implementation, the external address is an internet protocol (internet protocol, IP) address between the operation and maintenance platform and the plurality of main cameras, and the internal address is an IP address between the main camera and the sub-camera in each management group.

In the embodiment of the application, communication can be realized through the IP address whether the camera is a newly marketed camera or an old camera. The internal address is set as an IP address, so that old sub-cameras in the networking can also be communicated with the main camera, the monitoring networking can be ensured to be covered to all cameras, and wide coverage is realized.

In an alternative implementation, the external address communication and the internal address communication may be implemented through a session initiation protocol (session initialization protocol, SIP), a hypertext transfer protocol (hypertext transfer protocol, HTTP), a hypertext transfer security protocol (hypertext transfer protocol secure, HTTPs), a real-time transport protocol (real-time transport protocol, RTP), a real-time streaming protocol (REAL TIME STREAMING protocol, RTSP), or a proprietary protocol, which is not limited in this respect. The internal address and the external address are addresses specified by the corresponding protocol, such as an IP address, a uniform resource identifier (uniform resource identifier, URI), and the like, which are not limited in the present application.

In an alternative implementation, the first management group of the plurality of management groups further includes a router, and a communication connection is established between the router and the operation and maintenance platform. The main camera comprises a first connection port and at least one second connection port, wherein the first connection port is used for being connected with the router, and the at least one second connection port is used for being connected with the at least one sub-camera. The main camera realizes external address communication with the operation and maintenance platform through the first connection port and the router, and realizes internal address communication with at least one sub-camera through at least one second connection port.

The camera is typically provided with only one portal for connecting to the router. In the embodiment of the application, the connection between the main camera and the sub-cameras of the same management group is realized by increasing the number of the network ports on the main camera, so as to adapt to the change of the networking structure. The structure change does not affect the connection relation at other positions in the networking, and the cost of the networking structure change is low. And because the main camera is directly connected with the sub-camera, the communication of the sub-camera is maintained by the main camera, and the router does not need to know the communication address of the sub-camera. The number of communication addresses (e.g., IP addresses) maintained on the router may be reduced, thereby reducing various resource consumption and resource pressure of the router.

In an alternative implementation, the second management group of the plurality of management groups further includes a router network, the router network having a communication connection established with the operation and maintenance platform. The router network comprises a third connection port, a fourth connection port and at least one fifth connection port, wherein the third connection port is used for being connected with the operation and maintenance platform, the fourth connection port is used for being connected with the main camera, and the at least one fifth connection port is used for being connected with the at least one sub-camera. The router network realizes external address communication between the main camera and the operation and maintenance platform through the third connection port and the fourth connection port, and realizes internal address communication between the main camera and the sub-camera in the second management group through the fourth connection port and at least one fifth connection port.

In the embodiment of the application, the communication between the main camera and the sub-camera is realized through the router network, the network port number of the main camera is not required to be increased, the fluctuation of the main camera is small, and the cost of network upgrading is low.

In an alternative implementation, the third connection port is located on a first router in the router network, the fourth connection port is located on a second router in the router network, and the second router and the first router implement a cross-segment connection through the router and/or the switch, or are directly connected.

In the embodiment of the application, the communication connection between the main cameras positioned in different network segments and the operation and maintenance platform is realized through the first router and the second router in the router network, so that the operation and maintenance platform can manage the main cameras in different network segments. The allocation of the external address is not limited by network segments, and is more free.

In an alternative implementation, the fourth connection port is located on a first router in the router network, the fifth connection port is located on a third router in the router network, and the third router and the first router implement a cross-segment connection through a router and/or a switch, or are directly connected.

In the embodiment of the application, the communication connection between the sub-cameras positioned in different network segments and the main camera is realized through the first router and the third router in the router network, so that the main camera can manage the sub-cameras of different network segments, and the address allocation in the management group is not limited by the network segments and is more free.

In an alternative implementation, the first connection port, the second connection port, the third connection port, the fourth connection port, and the fifth connection port are physical ports or air interfaces.

In a second aspect, an embodiment of the present application provides a data transmission method. The method is applied to a main camera configured with an external address and an internal address. The external address is the address of communication between the main camera and the operation and maintenance platform, and the internal address is the address of communication between the main camera and at least one sub camera in the same management group. The method comprises the steps that the main camera receives a first management signaling from the operation and maintenance platform through an external address. The primary camera parses the first management signaling to generate at least one secondary management signaling identifiable by the secondary camera. The main camera and at least one sub-camera are different whole products, and the installation positions are mutually independent. The master camera sends second management signaling to the at least one child camera by addressing the inner address.

In the embodiment of the application, if a unified protocol does not exist between the operation and maintenance platform and the sub-camera, communication cannot be realized. The main camera reads the first management signaling from the operation and maintenance platform and generates the second management signaling which can be identified by the sub-camera, so that the sub-camera can also accept the management of the operation and maintenance platform, and the cross-protocol management and communication are realized. Even sub-cameras with different protocols from the operation and maintenance platform can be incorporated into the monitoring network to be managed, so that the manageable camera range in the network is expanded.

In an alternative implementation, the external address is an IP address between the operation and maintenance platform and the plurality of main cameras, and the internal address is an IP address between the main camera and the sub-camera in each management group.

In an alternative implementation, the first management signaling comprises signaling of a new version of the protocol of national standard GB28181, and the second management signaling comprises signaling of an old version of the protocol of GB 28181. Or the first management signaling comprises signaling of a new version of the open network video interface forum (open network video interface forum, ONVIF), and the second management signaling comprises signaling of an old version of the ONVIF.

In the embodiment of the application, the first management signaling of the new version protocol is converted into the second management signaling of the old version protocol through interpretation and repackaging of the management signaling by the main camera, so that the operation and maintenance platform using the new version protocol can realize the management of the sub-camera using the old version protocol by the main camera, thereby realizing the management of the cross-protocol version. In the networking upgrading process, the original old equipment (sub-camera) using the old version protocol can be reserved, so that the fluctuation of the existing erection point position in the networking upgrading process is reduced.

In an alternative implementation, the first management signaling and the second management signaling include an upgrade package for enabling an upgrade of the at least one sub-camera.

In the embodiment of the application, the operation and maintenance platform transmits a software upgrading package to the sub-camera through the main camera, so that the software upgrading of the older sub-camera in the networking is realized, the function of the sub-camera can be expanded through upgrading, the elimination rate of the older sub-camera is reduced, and the service life of the sub-camera is prolonged.

In an alternative implementation, the primary camera also performs the operations of collecting first video data, receiving second video data from at least one of the sub-cameras via the intra-pair address, processing the first video data and the second video data into video stream data, and transmitting the video stream data to the operation and maintenance platform via the external address.

In an alternative implementation mode, the main camera sends video stream data to the operation and maintenance platform through the external address, and the method comprises the steps that the main camera performs intelligent analysis on the second video data to obtain intelligent structured data of the second video data, and the main camera sends the video stream data and the intelligent structured data to the operation and maintenance platform through the external address.

In the embodiment of the application, the video data collected by the sub-cameras of the main camera is intelligently analyzed, so that the old sub-cameras are intelligentized, the functions of the old cameras are enriched, and the old cameras are upgraded.

In an alternative implementation, the primary camera and at least one of the sub-cameras have different shooting angles, and the primary camera processes the first video data and the second video data into video stream data, including the primary camera processing the first video data and the second video data into multi-channel video data for presenting a multi-angle monitoring picture on the operation and maintenance platform.

In the embodiment of the application, the multi-channel video data from the video cameras and the sub video cameras are processed into multi-channel video data with the same address (for example, the same IP address) by the main video camera, so that unified transmission of the multi-channel video data is realized. Compared with transmitting video data of different paths aiming at different addresses, the network in the embodiment of the application forwards the multichannel video data through the unified address, so that the resource consumption of the network for transmitting the multichannel video data can be reduced.

In an alternative implementation mode, the shooting visual angles of the main camera and at least one sub-camera are different, the first video data comprise first original data, the main camera processes the first video data and the second video data into video stream data, the video stream data comprise the second original data obtained by decoding the second video data by the main camera, the spliced video stream is obtained by splicing pictures of the first original data and the second original data by the main camera, and the video stream is obtained by encoding the spliced video stream by the main camera.

In the embodiment of the application, the main camera splices the associated multi-path video data into one-path video data. On the one hand, the number of transmitted videos is reduced, the occupation of transmission resources can be reduced, and the resources occupied by the operation and maintenance platform for decoding and rendering the videos are reduced. On the other hand, the pictures which are mutually related are spliced together, so that operation and maintenance personnel can conveniently and intuitively see pictures in a larger range, the field of view of the operation and maintenance personnel is more comprehensive, and more accurate event judgment can be made based on the global picture.

In an alternative implementation, the first management signaling and the second management signaling include PDZ adjustment instructions for at least one sub-camera.

In a third aspect, an embodiment of the present application provides a primary camera. The main camera is configured with an external address and an internal address. The external address is the address of communication between the main camera and the operation and maintenance platform, and the internal address is the address of communication between the main camera and at least one sub camera in the same management group. The main camera comprises a processing unit, the processing unit is used for realizing communication with the operation and maintenance platform through an external address, and the processing unit is used for realizing communication with at least one sub-camera through an internal address, and the processing unit is used for realizing the data transmission method in the second aspect.

In an alternative implementation manner, the main camera further comprises a first connection port and at least one second connection port, wherein the first connection port is used for being connected with the router, the router is in communication connection with the operation and maintenance platform, the at least one second connection port is used for being connected with the at least one sub-camera, the first connection port is used for achieving external address communication with the operation and maintenance platform through the router, and the at least one second connection port is used for achieving internal address communication with the at least one sub-camera.

In a fourth aspect, the present application provides a computer readable storage medium storing a computer program which, when executed, implements the method of the second aspect.

In a fifth aspect, there is provided a computer program product which, when executed on a computer, performs the method of the second aspect described above.

Advantageous effects of the third to fifth aspects are referred to in the first and second aspects, and are not described here in detail.

Drawings

Fig. 1 is a schematic diagram of a monitoring network architecture according to the present application;

Fig. 2 is a schematic diagram of an architecture of a monitoring network according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a network architecture of a monitoring network with a plurality of network ports for a main camera according to an embodiment of the present application;

fig. 4 is a schematic diagram of a monitoring networking architecture in which a main camera is connected to a sub camera through a router network according to an embodiment of the present application;

Fig. 5 is a schematic diagram of an architecture of a router network according to an embodiment of the present application;

fig. 6 is a schematic flow chart of a data transmission method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a video data transmission flow of a data transmission method according to an embodiment of the present application;

fig. 8a is a schematic view of a video stitching scene according to an embodiment of the present application;

Fig. 8b is a schematic diagram of a main camera picture of a video stitching scene according to an embodiment of the present application;

Fig. 8c is a schematic diagram of a sub-camera picture of a video stitching scene according to an embodiment of the present application;

Fig. 8d is a schematic diagram of a spliced picture of a video splicing scene according to an embodiment of the present application;

FIG. 9 is a schematic diagram of data flow processing according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a scenario of multi-channel processing according to an embodiment of the present application;

fig. 11 is a schematic diagram of an intelligent processing of an old camera according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described below with reference to the accompanying drawings. As one of ordinary skill in the art can know, with the development of technology and the appearance of new scenes, the technical scheme provided by the embodiment of the application is also applicable to similar technical problems.

The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely illustrative of the manner in which embodiments of the application have been described in connection with the description of the objects having the same attributes. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "at least one" means one or more, and "a plurality" means two or more. "and/or" describes an association of associated objects, meaning that there may be three relationships, e.g., A and/or B, and that there may be A alone, while A and B are present, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a, b, or c) of a, b, c, a-b, a-c, b-c, or a-b-c may be represented, wherein a, b, c may be single or plural.

The monitoring network typically includes an operation and maintenance platform at the back-end and a plurality of cameras at the front-end. As shown in fig. 1, the operation and maintenance platform allocates an IP address to each camera in the network, and implements management and operation and maintenance on a plurality of cameras in the network by using the IP address as a unit. Specifically, an operation and maintenance person operates an operation and maintenance platform and logs in the IP address of a certain camera to realize the operations of configuration, upgrading, log acquisition, equipment state inspection and the like of the camera.

With the development of monitoring networking, the number of cameras in the networking is increased, and the number of cameras managed by the operation and maintenance platform is increased. The operation and maintenance platform needs to maintain larger-scale IP addresses, and manage and operate and maintain cameras corresponding to each IP address, so that management difficulty is increased sharply.

For example, if there are 30 cameras in the network, the operation and maintenance device needs to allocate different IP addresses to the 30 cameras to implement management and operation and maintenance of the 30 cameras. If 30 cameras are newly added in the networking, the number of IP addresses required to be maintained by the operation and maintenance equipment is increased from 30 to 60. Such a large number of IP addresses is a significant challenge for the various resources of the operation and maintenance platform. Whether the IP addresses are allocated and maintained or the cameras corresponding to the IP addresses are managed and operated, a large amount of resources of the operation and maintenance platform are consumed.

Taking the allocation of IP addresses as an example, when allocating IP addresses to each camera, the operation and maintenance platform needs to consider that IP addresses of multiple cameras do not conflict with each other. With the increase of the number of cameras, the mutual non-conflict among all IP addresses is more difficult to realize, and the IP address allocation difficulty of the operation and maintenance platform is greatly increased. Even if the IP address assignment of each camera is completed, the management and operation pressure of the operation and maintenance platform is huge in the face of such a large-scale number of cameras.

In order to solve the above problems, the embodiment of the application provides a monitoring networking method, a data transmission method and related equipment. According to the monitoring networking and data transmission method provided by the embodiment of the application, the cameras are grouped, so that the number of the cameras directly managed by the operation and maintenance platform is reduced, and the management and operation and maintenance difficulties of the operation and maintenance platform are reduced.

As shown in fig. 2, the monitoring network 2000 provided in the embodiment of the present application includes a back-end operation and maintenance platform 2100 and a plurality of management groups 2200 in the front-end. Wherein each management group 2200 includes a main camera 2210 and at least one sub camera 2220.

In the embodiment of the present application, the main camera 2210 and the sub-camera 2220 are different overall products, and the installation positions are independent (i.e. the erection points are different and not related to each other).

In each management group 2200, the main camera 2210 is configured with an external address and an internal address. In an embodiment of the present application, the administrative group 2200 is used as a boundary to distinguish between the outside and inside pairs. The address used for communication inside the management group 2200 is referred to as an intra-pair address, and the address used for communication outside the management group 2200 is referred to as an external address.

In an alternative implementation, the external addresses include external IP addresses between the operation and maintenance platform 2100 and the plurality of main cameras 2210, the operation and maintenance platform 2100 and the plurality of main cameras 2210 implement external address communication through the external IP addresses, and the internal addresses include internal IP addresses between the main cameras 2210 and the sub cameras 2220 in each management group 2200, and the main cameras 2210 and the sub cameras 2220 in the management group 2200 implement internal address communication through the internal IP addresses.

It is noted that the external address communication and the internal address communication may be implemented by a session initiation protocol (session initialization protocol, SIP), a hypertext transfer protocol (hypertext transfer protocol, HTTP), a hypertext transfer security protocol (hypertext transfer protocol secure, HTTPs), a real-time transport protocol (real-time transport protocol, RTP), a real-time streaming protocol (REAL TIME STREAMING protocol, RTSP), or a proprietary protocol, which is not limited in the present application. The internal address and the external address are addresses specified by the corresponding protocol, such as an IP address, a uniform resource identifier (uniform resource identifier, URI), and the like, which are not limited in the present application. For convenience of description, the pair internal address and the pair external address are hereinafter characterized by a pair internal IP address and an external IP address. For multiple IP addresses (external IP address and internal IP address) of the main camera 2210, the operation and maintenance platform 2100 only needs to maintain the external IP address therein. The intra-pair IP address is maintained by the main camera 2210 and the operation and maintenance platform 2100 does not need to know the intra-pair IP address. Then, the operation and maintenance platform 2100 communicates with the main camera 2210 through the external IP address, and the operation and maintenance platform 2100 manages the main camera 2210.

In each management group 2200, the main camera 2210 communicates with at least one sub-camera 2220 by intra-pair IP addresses, enabling management of sub-cameras within the same management group 2200 by the main camera 2210.

In the embodiment of the present application, the operation and maintenance platform 2100 implements management of a plurality of cameras in the monitoring network 2000 in units of a management group 2200. One management group 2200 includes a main camera 2210 and at least one sub camera 2220, and the operation and maintenance platform 2100 implements direct management of the main camera 2210 through an external IP address, and management of the sub camera 2220 is implemented by the main camera 2210 of the same management group 2200. Thus, the operation and maintenance platform 2100 does not need to maintain communication with the sub-cameras 2220 in each of the management groups 2200 (does not need to maintain the IP addresses of the sub-cameras 2220), nor does it need to manage and operate the sub-cameras 2220 individually. The number of cameras directly managed by the operation and maintenance platform 2100 is greatly reduced, so that the difficulty in managing operation and maintenance of the operation and maintenance platform 2100 is reduced, and the resource consumption of the operation and maintenance platform 2100 is reduced.

Taking the number of IP addresses maintained by the operation and maintenance platform 2100 as an example, if the networking includes 60 cameras, the monitoring networking 2100 provided by the embodiment of the present application can reduce the number of IP addresses maintained by the operation and maintenance platform 2100. The existing networking needs to allocate 60 mutually independent IP addresses to realize the management of the 60 cameras, which is 60 cameras. While the embodiment of the present application may divide the 60 cameras into 20 management groups 2200, 20 cameras of the 60 cameras are main cameras 2210, and the remaining 40 cameras are sub-cameras 2220 in each management group 2200. The operation and maintenance platform can realize the management and operation and maintenance of all cameras in the networking only by distributing 20 IP addresses which are not mutually affected. The difficulty of distributing 20 IP addresses is far less than that of distributing 60 IP addresses, and various resource consumption of the operation and maintenance platform can be greatly reduced.

In the embodiment of the present application, the types of the main camera 2210 and the sub camera 2220 are not limited. The main camera 2210 and the sub camera 2220 may be monitoring cameras, machine vision products, vehicle-mounted cameras, unmanned aerial vehicles, etc., which are not limited in this regard.

The main camera 2210 and the sub camera 2220 may be the same type or different types of cameras, as long as they are independent of each other (i.e., the entire product can be accessed via a network), and the mounting positions are independent of each other (i.e., the mounting positions of the main camera 2210 and the sub camera 2220 do not affect each other).

The monitoring network 2000 shown in fig. 2 may be implemented by different connection methods, and then be deployed separately.

In an alternative implementation, the main camera 2210 is directly connected to the sub-camera 2220 through a network port, so as to implement intra-pair IP address communication with the sub-camera 2220. As shown in fig. 3, a first management group 2200-1 may be included in the plurality of management groups 2200 of the monitoring network 2000. Also included in the first management group 2200-1 is a router, with a communication connection established between the router and the operation and maintenance platform 2100. The main camera 2210 includes a plurality of ports, wherein a first type of port (e.g., port 1 in fig. 3) is used to connect with a router to enable communication with an external IP address between the operation and maintenance platform 2100 through the first type of port and the router, and a second type of port (e.g., port 2-1 and port 2-2 in fig. 3) is used to connect with different sub-cameras 2220 to enable communication with an internal IP address of the sub-camera 2220 in the management group 2200 through the second type of port.

In the embodiment of the present application, the connection between the main camera 2210 and the sub-camera 2220 of the same management group is realized by increasing the number of network ports on the main camera 2210, so as to adapt to the change of the networking structure. The structure change does not affect the connection relation at other positions in the networking, and the cost of the networking structure change is low. And since the main camera 2210 is directly connected to the sub camera 2220, the IP address of the sub camera 2220 is maintained by the main camera 2210, and the router does not need to know the IP address of the sub camera 2220. The number of IP addresses on the router can be reduced, thereby reducing various resource consumption and resource pressure of the router.

In another alternative implementation, the main camera 2210 implements a cross-local area communication connection with the sub-camera 2220 through a router network, thereby implementing intra-pair IP address communication with the sub-camera 2220. As shown in fig. 4, a second management group 2200-2 may be included in the plurality of management groups 2200 of the monitoring network 2000. Also included in the second management group 2200-2 is a router network having a communication connection with the operation and maintenance platform 2100. The router network includes multiple classes of portals, where a third class of portal (e.g., portal 3 in fig. 4) is used to connect to the operation and maintenance platform 2100, a fourth class of portal (e.g., portal 4 in fig. 4) is used to connect to the main camera 2210, and a fifth class of portal is used to connect to the sub-camera 2220.

The router network realizes the external IP address communication between the main camera 2210 and the operation and maintenance platform 2100 through the third type network port and the fourth type network port, and realizes the internal IP address communication between the main camera 2210 and the sub-camera 2220 in the second management group 2200-2 through the fourth type network port and the fifth type network port.

Specifically, the router network may maintain an external IP address between the main camera 2210 and the operation and maintenance platform 2100, and implement communication between the main camera 2210 and the operation and maintenance platform 2100 with the external IP address through the network port 3 and the network port 4. The router network may also maintain intra-pair IP addresses between the main camera 2210 and each sub-camera 2220, and implement communication between the main camera 2210 and the sub-cameras 2220 through the network port 4 and the network ports 5-1, 5-2 for the intra-pair IP addresses.

In the embodiment of the present application, communication between the main camera 2210 and the sub-camera 2220 is realized through the router network, the number of network ports of the main camera 2210 is not required to be increased, the variation to the main camera 2210 is small, and the cost of network upgrade is low.

The internal structure of the router network may include a multi-layer router as shown in fig. 5. Wherein, the network port 3 is located on the router 1 for connecting with the operation platform 2100, the network port 4 is located on the router 2 for connecting with the main camera 2210, and the network ports 5-1 and 5-2 are located on the routers 3-1 and 3-2 for connecting with the sub camera 2220, respectively. Between router 1 and router 2, a connection may be made through router 4, and a communication connection between the main camera 2210 of the different network segments and the operation and maintenance platform 2100 is made through router 4. Between router 3-1 and router 4, a connection may be made through router 5, and a communication connection between sub-camera 2220 and main camera 2210 of different network segments may be made through router 5.

In the embodiment of the present application, the router 4 in the router network is used to implement communication connection between the main camera 2210 located in different network segments and the operation and maintenance platform 2100, so that the operation and maintenance platform 2100 can manage the main camera 2210 in different network segments. The distribution of the external IP address is not limited by network segments and is more free.

In the embodiment of the present application, the router 5 in the router network is used to implement communication connection between the sub-cameras 2220 and the main camera 2210 in different network segments, so that the main camera 2210 can manage the sub-cameras 2220 in different network segments, and the IP address allocation in the management group is not limited by the network segments and is more free.

It should be noted that in the embodiment shown in fig. 5, the router may be replaced by a switch, and the cross-network segment connection (connection between any two of the main camera 2210, the sub camera 2220, and the operation and maintenance platform 2100) of each device is implemented through the switch, which is not limited in this aspect of the present application.

It should be noted that in the embodiments shown in fig. 3 to 5, the number of sub-cameras in the management group may be one or more, and the numbers of the second type of network ports and the fifth type of network ports match the number of sub-cameras.

It should be noted that, in the structures shown in fig. 3 and fig. 4, the air interface may be used instead of the network port (physical port) to implement the corresponding communication connection, which is not limited by the present application.

In the monitoring networking 2000 shown in fig. 2 to 5, the main camera 2210 is used to implement management of the sub-cameras 2220 in the same management group 2200. In addition, the uploading of the multi-channel video data, the splicing of the multi-channel video data, the upgrading of the sub-camera capability, the intelligent processing, and the like can be realized through the main camera 2210, and will be described one by one.

Based on the monitoring networking 2000 shown in fig. 2 to 5, the embodiment of the application further provides a data transmission method. The method is applied to the master camera 2210 in the above-described networking 2000. As shown in fig. 6, the data transmission method includes:

601. the main camera 2210 receives the first management signaling from the operation and maintenance platform 2100 through the external IP address.

The operation and maintenance platform 2100 and the main camera 2210 can communicate through a unified protocol. When some management signaling needs to be sent to the cameras in the monitoring network 2000, the operation and maintenance platform may encapsulate the management signaling into a first management signaling in the protocol format, and send the first management signaling to the main camera 2210 through the external IP address of the main camera 2210. Correspondingly, the main camera 2210 receives a first management instruction from the operation and maintenance platform 2100 through the external IP address.

For example, if the operation and maintenance platform 2100 wants to acquire the device status of each camera in the monitoring network 2000, the device status acquisition instruction may be encapsulated into the first management signaling in the above protocol format and sent to the main camera 2210 through the external IP address.

602. The primary camera 2210 parses the first management signaling to generate second management signaling identifiable by at least one of the child cameras 2220.

Within the administrative group 2200, there may be some sub-cameras 2220 that are unable to recognize messages in the protocol format described above. In this case, the main camera 2210 then parses the first management signaling as a translation between the operation and maintenance platform 2100 and the sub-camera 2220, and generates a second management signaling identifiable by the sub-camera 2220 according to the parsed signaling.

For example, if the operation and maintenance platform 2100 and the main camera 2210 are manufactured by the same manufacturer, the sub-camera 2220 is manufactured by another manufacturer. Because the operation and maintenance platform 2100 and the main camera 2210 are devices of the same manufacturer, they can communicate through an internal protocol developed by the same manufacturer, and the first management signaling is a message in the format of the internal protocol. The child camera 2220 is another vendor's device that does not support the internal protocol and therefore cannot interpret the first management signaling. The primary camera 2210 may then parse the first management signaling to generate a second management signaling in a generic protocol format (e.g., GB28181 protocol format), which may then be identified by the secondary camera 2220.

603. The main camera 2210 transmits second management signaling to at least one sub-camera 2220 through the intra-IP address.

After acquiring the second management signaling, the main camera 2210 may send the second management signaling to the sub-camera 2220 in the intra-pair IP within the management group 2200, so as to implement the communication of the management signaling to the sub-camera 2220.

Upon receiving the second management signaling, the child camera 2220 recognizes the content therein and determines the device status of each camera in the collection of the operation and maintenance platform 2100. Then, the sub-camera 2220 reports its own device status to the operation and maintenance platform 2100 (to report the internal IP address) through the main camera 2210.

In the embodiment of the present application, if there is no unified protocol between the operation and maintenance platform 2100 and the sub-camera 2220, communication cannot be implemented. The primary camera 2210 interprets the first management signaling from the operation and maintenance platform 2100 and generates a second management signaling identifiable by the secondary camera 2220, so that the secondary camera 2220 can also accept the management of the operation and maintenance platform 2100, and cross-protocol management and communication are realized. Even the sub-camera 2220 of a different protocol than the operation and maintenance platform 2100 can be incorporated into the monitoring network 2000 to be managed, extending the manageable camera range in the network.

Alternatively, if the sub-camera 2220 is an older camera in the monitoring network 2000 and the operation and maintenance platform 2100 and the main camera 2210 are newer devices, then the communication between the operation and maintenance platform 2100 and the main camera 2210 may use a new version of the protocol that is not supported by the sub-camera 2220. For example, the child camera may only support an old version of the protocol of GB28181 (e.g., GB 28181-2016), while the operation and maintenance platform 2100 communicates with the host camera 2210 using a new version of the protocol (e.g., GB 28181-2022). For example, the child camera may only support an old version of the ONVIF protocol (e.g., ONVIF profile S), while the operation and maintenance platform 2100 communicates with the master camera 2210 using a new version of the protocol (e.g., ONVIF profile T).

In the embodiment of the present application, the interpretation and repackaging of the management signaling by the main camera 2210 converts the first management signaling of the new version protocol into the second management signaling of the old version protocol, so that the operation and maintenance platform 2100 using the new version protocol can realize the management of the sub-camera 2220 using the old version protocol by the main camera 2210, thereby realizing the management of the cross-protocol version. In the networking upgrading process, the original old equipment (the sub-camera 2220) using the old version protocol can be reserved, so that the change of the existing erection point position in the networking upgrading process is reduced.

Optionally, in the first management signaling and the second management signaling, an upgrade software package of the sub-camera 2220 may be further included, so as to implement upgrade of the sub-camera 2220. In the embodiment of the application, the operation and maintenance platform 2100 transmits a software upgrade package to the sub-camera 2220 through the main camera 2210, so that the software upgrade of the older sub-camera 2220 in the networking is realized, the functions of the sub-camera 2220 can be expanded through upgrade, the elimination rate of the old sub-camera 2220 is reduced, and the service life of the sub-camera 2220 is prolonged.

Through the above-mentioned flow, the operation and maintenance platform 2100 can manage and operate and maintain all cameras in the monitoring network 2000. Based on the management of the cameras by the operation and maintenance platform 2100, each camera can transmit the collected data to the operation and maintenance platform 2100, and finally present to the user.

As shown in fig. 7, the networking 2000 provided by the embodiment of the present application implements a flow of transmitting collected data of each camera to the operation and maintenance platform 2100, including:

701. The main camera 2210 acquires first video data.

702. The main camera 2210 receives second video data from at least one sub-camera 2220 through the intra-IP address.

Communication is achieved between the main camera 2210 and the sub camera 2220 through the intra-IP address, whether in the downstream direction (the direction from the operation and maintenance platform 2100 to the main camera 2210 to the sub camera 2220) or in the upstream direction (the direction from the sub camera 2220 to the main camera 2210 to the operation and maintenance platform 2100). After the sub-camera 2220 collects the second video data, the second video data may be transmitted to the main camera 2210 through the intra-IP address. Correspondingly, the main camera 2210 receives the second video data from the sub-camera 2220 through the intra-IP address.

703. The main camera 2210 processes the first video data and the second video data into video stream data, and transmits the video stream data to the operation and maintenance platform 2100 through an external IP address.

The main camera 2210 processes the collected first video data and the received second video data into one or more video stream data, and transmits the one or more video stream data to the operation and maintenance platform 2100 through an external IP address.

In the embodiment of the application, if the first video data and the second video data are processed into one path of video stream data, specifically, the first video data and the second video data are subjected to picture splicing to obtain one path of spliced video data.

Take the scenario shown in fig. 8a as an example. The management group 2200 includes one main camera 2210 and one sub camera 2220. The main camera 2210 and the sub-camera 2220 are arranged on the same cross bar and have different shooting angles of view, and are respectively used for shooting images of different areas in the same scene. The picture of the main camera 2210 is shown in fig. 8b, and the picture of the sub camera 2220 is shown in fig. 8c, both pictures including two trees in a scene, which are common features in the same scene.

In a normal case, the video data collected by the main camera 2210 and the sub camera 2220 are divided into two video transmissions, and are presented on the operation and maintenance platform as two pictures shown in fig. 8b and 8 c.

In an embodiment of the present application, the first video data collected by the main camera 2210 may include first original data. After the main camera 2210 receives the second video data from the sub camera 2220 through the inner IP address, in the process of performing step 703, the second video data may be decoded to obtain second original data as shown in fig. 9. And performing picture splicing on the first original data and the second original data to obtain a spliced video stream. Specifically, how to splice pictures can be determined based on common features in two pictures (i.e., two trees in a picture), resulting in a spliced video stream.

Then, the spliced video stream is encoded to obtain video stream data described in step 703, so that two paths of video data are spliced into one path of video stream data. The video streaming data is presented on the operation and maintenance platform 2100 in the picture shown in fig. 8 d.

In the embodiment of the present application, the main camera 2210 splices multiple paths of video data related to each other into one path of video data. On the one hand, the number of transmitted videos is reduced, the occupation of transmission resources can be reduced, and the resources occupied by the operation and maintenance platform for decoding and rendering the videos are reduced. On the other hand, the pictures which are mutually related are spliced together, so that operation and maintenance personnel can conveniently and intuitively see pictures in a larger range, the field of view of the operation and maintenance personnel is more comprehensive, and more accurate event judgment can be made based on the global picture.

In the embodiment of the application, if the first video data and the second video data are processed into the multi-path video stream data, multi-path processing, intelligent processing and the like can be performed on the first video data and the second video data to obtain the multi-path video data.

One specific scenario of multi-channel processing is shown in fig. 10. The management group 2200 includes a large-screen monitor device and two cradle head devices. The large-screen monitoring device is the main camera 2210, the pan-tilt device is the sub-camera 2220, and the main camera 2210 and the two sub-cameras 2220 have different shooting angles. In step 703 of the embodiment shown in fig. 7, the main camera 2210 may unify the IP addresses of the first video data and the second video data to the IP address of the main camera 2210, and convert the multi-path video data with different IP addresses into multi-path video data with the same IP address, so as to obtain video stream data. The multi-channel video data is used to present a multi-view monitor screen on the operation and maintenance platform 2100.

In the embodiment of the present application, the primary camera 2210 processes the multi-path video data from the primary camera 2210 and the secondary camera 2220 into multi-path video data with the same IP address, so as to realize unified transmission of the multi-path video data. Compared with transmitting video data of different paths aiming at different IP addresses, the network in the embodiment of the application forwards the multichannel video data through the unified IP address, so that the resource consumption of the network for transmitting the multichannel video data can be reduced.

Alternatively, in the scenario shown in fig. 10, service linkage of multiple devices may be implemented in conjunction with issuing management signaling. As shown in fig. 10, the pictures taken by the two sub-cameras 2220 (pan/tilt apparatuses 1 and 2) are partial areas in the picture of the main camera 2210 (large-screen monitoring apparatus). The pictures of the large-picture monitoring equipment are used for reflecting global events, and the pictures of the two cloud deck equipment are used for reflecting local details. The operation and maintenance platform 2100 can detect global events through the screen of the main camera 2210 (large screen monitoring device), and determine a plurality of events (including event a and event B in fig. 9) in the global screen.

Then, the operation and maintenance platform 2100 determines to take a snapshot of event a (bus with more passengers) and event B (car traveling at high speed on the expressway) according to the priority of each event. And determines that event a (bus) was captured by the cradle head device 2. The operation and maintenance platform 2100 may instruct the pan-tilt device 2 to track and capture details of the event a (i.e. capture a partial image of the bus) through the first management signaling and the second management signaling in fig. 2. The operation and maintenance platform 2100 determines that the event B (car) is captured by the pan-tilt device 1, and then the pan-tilt device 1 may be instructed to perform detail tracking snapshot of the event B (i.e. snapshot of a partial image of the car) through the first management signaling and the second management signaling in fig. 2.

In the embodiment of the present application, the operation and maintenance platform 2100 determines the snapshot object of the sub-camera 2220 in the management group 2200 based on the event priority, so that the snapshot object can be better selected, and the high-risk event in the picture is preferably snapshot, so that the high-risk event can be quickly reacted when the high-risk event truly has an abnormality.

Optionally, in the embodiment shown in fig. 10, if the tracking snapshot needs to adjust the shooting angle of a certain sub-camera 2220, the operation and maintenance platform 2100 may carry a horizontal/vertical/magnification (PTZ) adjustment instruction for the sub-camera 2220 in the first management signaling and the second management signaling, so as to implement adjustment of the shooting angle of the sub-camera 2220.

Similarly, in the embodiments shown in fig. 8a to fig. 9, if the frame stitching needs to adjust the shooting angle of a certain sub-camera 2220, the operation and maintenance platform 2100 may also carry PTZ adjustment instructions for the sub-camera 2220 in the first management signaling and the second management signaling, so as to adjust the shooting angle of the sub-camera 2220.

Notably, the PDZ adjustments made to the sub-camera 2220 by embodiments of the present application are made for channels. The video stream data transmitted to the operation and maintenance platform 2100 is multi-channel video data, and the operation and maintenance platform 2100 may perform PDZ adjustment for a channel therein.

In the embodiment of the application, whether the first video data and the second video data are processed into one-path video data or multi-path video stream data, intelligent analysis and the like can be performed on the first video data and the second video data to obtain intelligent structured data.

If the sub-camera 2220 in the management group 2200 is an older camera, the video data collected by the sub-camera 2220 may be intelligently analyzed by the main camera 2210, so as to realize the intellectualization of the older camera. As shown in fig. 11, the management group 2200 includes n old legacy high definition cameras (slaves 1-n), which are child cameras 2220.

In step 702 of the embodiment shown in fig. 7, n sub-cameras 2220 aggregate the collected video streams (second video data) by transmitting the inner IP addresses to the access layer switching device. The access layer switching device transmits the summarized second video data to the main camera 2210 through the intra-pair IP address.

In step 703, the main camera 2210 performs intelligent analysis on the second video data (video stream), to obtain intelligent structured data of each second video data. For example, the intelligent structured data of the slave 1 includes a motor vehicle, which indicates that the photographed image of the slave 1 includes a motor vehicle, the intelligent structured data of the slave 2 includes a motor vehicle and a non-motor vehicle, which indicates that the photographed image of the slave 2 includes a motor vehicle and a non-motor vehicle, and the intelligent structured data of the slave n includes a person image, which indicates that the photographed image of the slave n includes a person.

The main camera 2210 processes the first video data and the second video data to obtain video stream data. And after acquiring the above-mentioned intelligent structured data and video stream data, the video stream data and the intelligent structured data are transmitted to the operation and maintenance platform 2100 through the external IP address.

In the embodiment of the application, the video data collected by the sub-camera 2220 is intelligently analyzed by the main camera 2210, so that the old sub-camera 2220 is intelligentized, the functions of the old camera are enriched, and the old camera is upgraded.

Notably, the intelligence herein does not refer to imparting intelligence capabilities to the old camera itself. The method is characterized in that the intelligent processing of the images acquired by the old camera is realized through the computing power of the main camera 2210, and intelligent structural data is attached to the images acquired by the equipment.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

Claims

1. A surveillance network, comprising an operation and maintenance platform and multiple management groups, each of the multiple management groups comprising a main camera and at least one sub-camera, the main camera and the at least one sub-camera being separate complete products and being installed in independent locations;

The main camera in each management group is configured with an external address and an internal address. The external address is the address for communication between the operation and maintenance platform and multiple main cameras, and the internal address is the address for communication between the main camera and sub-cameras in each management group.

The operation and maintenance platform communicates with the main camera via the external address, so that the operation and maintenance platform manages the main camera;

In each management group, the main camera communicates with the at least one sub-camera via the internal address, thereby enabling the main camera to manage the at least one sub-camera in the same management group.

2. The networking according to claim 1 is characterized in that the external address is the IP address between the operation and maintenance platform and multiple main cameras, and the internal address is the IP address between the main camera and the sub-camera in each management group.

3. The networking according to claim 1 or 2, wherein the first management group among the multiple management groups further comprises a router, and a communication connection is established between the router and the operation and maintenance platform;

The main camera includes a first connection port and at least one second connection port, the first connection port is used to connect to the router, and the at least one second connection port is used to connect to the at least one sub-camera;

The main camera realizes external address communication with the operation and maintenance platform through the first connection port and the router, and realizes internal address communication with the at least one sub-camera through the at least one second connection port.

4. The networking according to claim 1 or 2, wherein the second management group among the multiple management groups further comprises a router network, and a communication connection is established between the router network and the operation and maintenance platform;

The router network includes a third connection port, a fourth connection port, and at least one fifth connection port, the third connection port is used to connect to the operation and maintenance platform, the fourth connection port is used to connect to the main camera, and the at least one fifth connection port is used to connect to the at least one sub-camera;

The router network realizes external address communication between the main camera and the operation and maintenance platform through the third connection port and the fourth connection port, and realizes internal address communication between the main camera and the sub-camera in the second management group through the fourth connection port and the at least one fifth connection port.

5. The networking according to claim 4 is characterized in that the third connection port is located on the first router in the router network, the fourth connection port is located on the second router in the router network, and the second router and the first router are connected across network segments through routers and/or switches, or are directly connected.

6. The networking according to claim 4 or 5 is characterized in that the fourth connection port is located on the first router in the router network, the fifth connection port is located on the third router in the router network, and the third router and the first router are connected across network segments through a router and/or switch, or are directly connected.

7. The networking according to any one of claims 3 to 6, wherein the first connection port, the second connection port, the third connection port, the fourth connection port and the fifth connection port are physical ports or air interfaces.

8. A data transmission method, characterized in that it is applied to a main camera, the main camera is configured with an external address and an internal address, the external address is the address for communication between the main camera and the operation and maintenance platform, and the internal address is the address for communication between the main camera and at least one sub-camera in the same management group, the method comprising:

receiving a first management signaling from the operation and maintenance platform through the external address;

parsing the first management signaling to generate a second management signaling recognizable by the at least one sub-camera, wherein the main camera and the at least one sub-camera are different complete products and are installed at independent locations;

The second management signaling is sent to the at least one sub-camera through an internal address.

9. The method according to claim 8, characterized in that the external address is the IP address between the operation and maintenance platform and multiple main cameras, and the internal address is the IP address between the main camera and the sub-camera in each management group.

10. The method according to claim 8 or 9, wherein the first management signaling includes signaling of a new version of the national standard GB28181 protocol, and the second management signaling includes signaling of an old version of the national standard GB28181 protocol; or

The first management signaling includes signaling of a new version of the protocol of the Open Network Video Interface Forum (ONVIF), and the second management signaling includes signaling of an old version of the protocol of ONVIF.

11. The method according to any one of claims 8 to 10, wherein the first management signaling and the second management signaling comprise an upgrade software package, and the upgrade software package is used to implement the upgrade of the at least one sub-camera.

12. The method according to any one of claims 8 to 11, further comprising:

collecting first video data;

receiving second video data from the at least one sub-camera through the internal address;

The first video data and the second video data are processed into video stream data, and the video stream data is sent to the operation and maintenance platform through the external address.

13. The method according to claim 12, wherein sending the video stream data to the operation and maintenance platform through the external address comprises:

performing intelligent analysis on the second video data to obtain intelligent structured data of the second video data;

The video stream data and the intelligent structured data are sent to the operation and maintenance platform via the external address.

14. The method according to claim 12 or 13, wherein the main camera and the at least one sub-camera have different shooting angles, and the processing of the first video data and the second video data into video stream data comprises:

The first video data and the second video data are processed into multi-channel video data, and the multi-channel video data is used to present multi-perspective monitoring images on the operation and maintenance platform.

15. The method according to claim 12 or 13, wherein the main camera and the at least one sub-camera have different shooting angles, and the first video data comprises first original data;

The processing of the first video data and the second video data into video stream data includes:

decoding the second video data to obtain second original data;

Performing image stitching on the first original data and the second original data to obtain a stitched video stream;

The spliced video stream is encoded to obtain the video stream data.

16 . The method according to claim 14 , wherein the first management signaling and the second management signaling include a PDZ adjustment instruction for the at least one sub-camera.

17. A master camera, characterized in that the master camera is configured with an external address and an internal address, the external address being the address for communication between the master camera and an operation and maintenance platform, and the internal address being the address for communication between the master camera and at least one sub-camera in the same management group;

The main camera includes a processing unit, which is used to communicate with the operation and maintenance platform through the external address and to communicate with the at least one sub-camera through the internal address. The processing unit is used to implement the data transmission method described in any one of claims 8 to 16.

18. The main camera according to claim 17, further comprising a first connection port and at least one second connection port, wherein the first connection port is used to connect to a router that establishes a communication connection with the operation and maintenance platform, and the at least one second connection port is used to connect to the at least one sub-camera;

The first connection port is used to implement external address communication with the operation and maintenance platform through the router, and the at least one second connection port is used to implement internal address communication with the at least one sub-camera.

19. A computer-readable storage medium, wherein a program is stored in the computer-readable storage medium, and when the computer executes the program, the method according to any one of claims 8 to 16 is executed.

20. A computer program product, characterized in that when the computer program product is executed on a computer, the computer executes the method according to any one of claims 8 to 16.