Hybrid network monitoring method and monitoring device for broadcast television system

Abstract

The invention discloses a hybrid network monitoring method and monitoring device for a broadcast television system. The hybrid network monitoring method comprises the following steps: monitoring a plurality of switches and a plurality of video devices in a hybrid network; when the plurality of switches and the plurality of video devices change, automatically updating switch information and video device information of the hybrid network; and identifying a video sub-network and an IP sub-network in the hybrid network according to the switch information and the video equipment information of the hybrid network, and constructing a topological structure of the hybrid network. According to the hybrid network monitoring method, the topological structure of the whole hybrid network is automatically sensed and reconstructed, so that the network forwarding performance and the signal stability are improved, and the stability, flexibility and flexibility of the hybrid network are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of broadcasting and television program editing and production, and in particular to a hybrid network monitoring method and a monitoring device for a broadcasting and television system. Background Art

[0002] According to the existing TV station's production process for news and other programs, first use professional equipment such as cameras to conduct on-site interviews and recording. After recording, the video returns to the TV station and is edited and produced by professional non-linear editing equipment. After production, the video is reviewed and provided to the broadcast system, which plays it. The production and broadcast of radio and television (referred to as "production and broadcasting") requires a large number of staff and video equipment to work together.

[0003] In the early broadcasting and television production and broadcasting networks, multiple video devices were connected through a serial digital interface (SDI). SDI technology supports the transmission of uncompressed digital video signals and is widely used in video editing and broadcast quality video transmission.

[0004] In modern broadcasting and television production and broadcasting networks, IP technology is increasingly being used. By adopting an ICT-based IP technology architecture, which gradually replaces the traditional SDI technology architecture, this shift has improved the efficiency and flexibility of production and broadcasting. For example, Huawei's intelligent IP production and broadcasting network solution uses a software-defined network (SDN) architecture, combined with an IP switching matrix and media asset management terminal equipment, to achieve network management, monitoring, IP flow analysis, and intelligent scheduling.

[0005] In network design, the hybrid network of a broadcasting and television system can include a video subnet and an IP subnet, combining SDI, SDN, and IGMP (Internet Group Management Protocol) to achieve efficient video transmission and network management. For example, in broadcasting and television signal scheduling, SDI is used to transmit high-quality video signals, while SDN is used to dynamically manage and optimize network resources to ensure efficient transmission of video signals. IGMP is used to manage multicast video streams to ensure that only devices that request specific multicast content will receive the relevant video streams. This combination can improve the efficiency and quality of video transmission while reducing network complexity and operating costs.

[0006] However, in the hybrid network of broadcasting and television systems, different signal formats and transmission methods require different video conversion devices to convert signals, and the signal transmission path depends on the fixed network topology. When transmitting video data between the production department and the broadcasting department of broadcasting and television, the signal forwarding path is calculated according to the fixed network structure, and the physical connection may be interrupted due to the addition and removal of devices such as video conversion devices and switches, resulting in loss of video signals or degradation of quality.

[0007] It is expected that the hybrid network monitoring method and monitoring device of the broadcasting and television system will be further optimized to dynamically construct the topology of the hybrid network, thereby improving the stability of the hybrid network, optimizing communication performance, and improving management efficiency. Summary of the invention

[0008] In view of this, the purpose of the present invention is to provide a hybrid network monitoring method and a monitoring device for a broadcasting and television system, to construct the topology of a hybrid network based on switch information and video equipment information, and to automatically sense and rebuild the topology when node equipment changes, so as to improve network forwarding performance and signal stability, and enhance the stability, scalability and flexibility of the hybrid network.

[0009] According to one aspect of the present invention, there is provided a hybrid network monitoring method for a broadcasting and television system, comprising: monitoring a plurality of switches and a plurality of video devices in a hybrid network; automatically updating the switch information and the video device information of the hybrid network when the plurality of switches and the plurality of video devices change; and identifying the video subnetwork and the IP subnetwork in the hybrid network based on the switch information and the video device information of the hybrid network, and constructing a topological structure of the hybrid network.

[0010] Optionally, the switch information includes at least: connection information of the multiple switches; and port information of the multiple switches.

[0011] Optionally, the method further includes: determining online states of the multiple switches according to connection information of the multiple switches, and identifying that the working modes of the multiple switches are one of an SDN mode and an IGMP mode.

[0012] Optionally, the method further includes: determining connection relationships between the multiple switches according to the port information of the multiple switches, and obtaining port bandwidths and traffic loads of the multiple switches.

[0013] Optionally, the plurality of video devices include a video conversion device and a video routing device, the video conversion device being used for signal conversion between a first signal format and a second signal format, and the video routing device being used for transmitting a video signal from a first input terminal to a selected first output terminal.

[0014] Optionally, the video device information at least includes channel attributes of the video routing device, and the channel attributes include: channel usage status and signal conversion direction of the video conversion device.

[0015] Optionally, the step of constructing the topological structure of the hybrid network includes: identifying sub-network types of the input end and the output end of the video conversion device according to the signal conversion direction of the video conversion device.

[0016] Optionally, the input end of the video conversion device is one of the SDI signal, the TS signal and the SMPTE 2110 signal, and the output end is the other one of the SDI signal, the TS signal and the SMPTE 2110 signal.

[0017] Optionally, the step of automatically updating the switch information and video device information of the hybrid network includes: periodically scanning the switches and video devices of the entire hybrid network via the management ports of multiple switches and multiple video devices in the hybrid network, and updating the switch information and video device information of the hybrid network according to the scanning results.

[0018] According to another aspect of the present invention, a hybrid network monitoring device is provided, which is used to execute the above hybrid network monitoring method.

[0019] According to the hybrid network monitoring method and monitoring device of the embodiment of the present invention, the switches and video devices of the entire hybrid network are monitored, so the topology of the hybrid network can be automatically updated. In the hybrid network, whether the node device in the video subnet or the IP subnet changes, the entire network topology can be automatically rebuilt. Therefore, the hybrid network monitoring method can support the automatic optimization of the signal forwarding path in the complex network environment of the hybrid network. When a new node device is added, a new signal forwarding path can be automatically scheduled to improve the network forwarding performance. When a node device is removed, the node device can be deleted from the path selection strategy to improve signal stability.

[0020] Furthermore, based on the network topology of the hybrid network, a link diagram of the entire network can be provided, which is convenient for staff to view and maintain the working status of the entire network. The hybrid network monitoring method supports full-link signal path optimization. Compared with the path optimization of multiple sub-networks of the hybrid network separately, a more flexible and efficient full-link signal path can be provided between multiple signal sources and multiple target devices.

[0021] Furthermore, based on the network topology of the hybrid network, it is allowed to arbitrarily add video devices and switch nodes to the network topology, and it is also supported to add or merge another network structure on the existing network topology, thereby improving the stability, scalability and flexibility of the hybrid network. For example, as the number of workstations in the broadcasting and television system increases, the hybrid network monitoring device in the background management system can automatically expand the scale of the hybrid network without manual maintenance, thereby saving maintenance costs.

[0022] In a preferred embodiment, the switches and video devices of the entire hybrid network are scanned periodically (for example, once every 5 seconds) through the management ports of multiple switches and multiple video devices in the hybrid network, thereby automatically updating the switch information and video device information of the hybrid network. For example, for remote node devices, the configuration information and operation information of the node devices are accessed via the network interface, and for local node devices, the configuration information and operation information of the node devices are accessed via the serial interface. This hybrid network method uses a unified scanning mechanism for remote and local node devices to achieve quasi-real-time automatic monitoring, so that the full-link signal path optimization can adapt to the hardware changes of the hybrid network, improve signal stability and system response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0024] Figure 1 A schematic block diagram of a broadcasting and television network system according to an embodiment of the present invention is shown;

[0025] Figure 2 The hybrid network topology structure of the broadcasting and television playing system according to the embodiment of the present invention is shown;

[0026] Figure 3 Show Figure 2 Examples of signal forwarding paths in the network topology shown;

[0027] Figure 4 A schematic block diagram of a hybrid network background management system according to an embodiment of the present invention is shown;

[0028] Figure 5 A flow chart of a hybrid network monitoring method according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0029] Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by the same or similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the drawings and examples.

[0031] Figure 1 A schematic block diagram of a broadcasting and television network system according to an embodiment of the present invention is shown. The broadcasting and television network system 100 includes a signal source 101, a receiving device 106, video routing devices 102 and 105, video conversion devices 103 and 104, network switches 110 and 120, and a network monitoring device 130 for monitoring the network switches and video devices.

[0032] In this embodiment, the signal forwarding process of video data is explained by taking the network communication between the broadcasting and television production system and the broadcasting system as an example.

[0033] The signal source 101 provides a local video signal in a first signal format. The signal source 101 is, for example, a camera for live shooting programs, a satellite ground station for receiving satellite TV programs, or a local or cloud storage server for storing video programs. Depending on the signal source, the first signal format may be an uncompressed digital video signal or a compressed digital video signal. For example, the signal output by the camera is an SDI signal (an uncompressed digital video signal), the signal received by the satellite ground station is a TS signal (a compressed digital video signal), and the file format stored in the local or cloud storage server is a compressed file format such as MP4 or MKV.

[0034] The video routing device 102 transmits the local video signal to the next-level signal processing workstation via the selected signal path. When the local video signal is an SDI signal, the video routing device 102 is, for example, an SDI matrix. The video routing device 102 supports unidirectional signal transmission and path switching of multiple channels. For example, the video routing device model KODI Video Router 3000 manufactured by Dalian Kodi Video Technology Co., Ltd. can support path switching from 16 input sources to 16 output channels.

[0035] In the radio and television production system, the local video signal is clipped and edited, and then the content and technology are reviewed, and the copyright mark is added to form a video signal of the program content.

[0036] The video conversion device 103 converts the video signal of the program content into an IP signal. For example, the video signal of the program content is an uncompressed SDI signal, and the IP signal is a SMPTE 2110 signal that complies with the Internet Protocol (IP). For example, the video signal of the program content is encoded and divided into multiple data packets to generate an IP signal that is easy to transmit via an IP network, wherein the SMPTE 2110 signal is generated according to the IP signal broadcasting television standard established by the Society of Motion Picture and Television Engineers (SMPTE). Unlike traditional SDI signals, SMPTE 2110 signals are specifically used to transmit professional-grade uncompressed video data in IP networks.

[0037] The video conversion device 103 can support bidirectional video conversion of a single channel or multiple channels. For example, the conversion device model 2110 IP Converter 3x3G manufactured by Blackmagic Design can support 3 channels, each of which can be configured to convert SDI video into IP signals, or vice versa. In the network system of the broadcasting and television production system and the broadcasting and television playback system, the broadcasting and television production system is used to send program content, wherein the video conversion device 103 is configured to convert the SDI signal of the program content into an IP signal.

[0038] The broadcasting and television production system forwards the signal of the program content to the broadcasting and television playing system via the IP sub-network. The IP sub-network includes network switches 110 and 120, and the Internet or a local area network connecting the network switches 110 and 120.

[0039] The network switches 110 and 120 are one of the core switching devices in the IP subnetwork, responsible for forwarding data packets between multiple network nodes. Its topology is usually a star or tree topology, depending on the network scale and application scenario. In the star topology, the network switch 110 acts as a central node, connecting multiple terminal devices or other node devices, such as servers and workstations. In the tree topology, the network switches 110 and 120 can be located in network structures at different levels, including multiple switches forming a multi-level network. In an IP network structure that supports multiple paths, the network switches 110 and 120 use a multi-path selection mechanism to ensure efficient forwarding of data packets, and reasonably distribute traffic to multiple paths, thereby sharing the network load. This method effectively improves the utilization of network resources to prevent overload of a single path.

[0040] The broadcasting and television broadcasting system receives program content via the broadcasting and television network system. In the broadcasting and television broadcasting system, the video conversion device 104 converts the IP signal of the program content into a local video signal of the program content. For example, the local video signal is an uncompressed SDI signal, and the IP signal is a SMPTE 2110 signal that complies with the Internet Protocol (IP). The video conversion device 104 can support bidirectional signal transmission of a single or multiple channels. In the network system of the broadcasting and television production system and the broadcasting and television broadcasting system, the broadcasting and television broadcasting system is used to receive program content, and the video conversion device 104 is configured to convert the IP signal of the program content into an SDI signal.

[0041] The video routing device 105 transmits the program video signal via the selected signal path to the next-stage receiving device 106. When the program video signal is an SDI signal, the video routing device 105 is, for example, an SDI matrix. The video routing device 105 supports unidirectional signal transmission and path switching of multiple channels.

[0042] In the broadcast and television production system, the receiving device 106 arranges the program content into a program broadcast plan, reasonably arranges advertising time in the program, and broadcasts the program content according to the broadcast plan.

[0043] Different from the existing broadcasting and television network system, the broadcasting and television network system according to the embodiment of the present invention further includes a network monitoring device 130. The network monitoring device 130 not only monitors the network switch of the IP subnet, but also monitors the video devices in the video subnet, including the video conversion devices 103 and 104, and the video routing devices 102 and 105. According to the connection status and port information of the network switch and the channel attributes of the video device, the topology structure of the entire hybrid network is constructed.

[0044] When devices in the hybrid network change, the network monitoring device 130 can automatically sense and rebuild the topology to improve the stability, scalability and flexibility of the hybrid network.

[0045] In this embodiment, the signal forwarding process of video data is described by taking the network communication between the radio and television production system and the broadcasting system as an example. However, the present invention is not limited to this. There are multiple distributed video processing nodes or workstations inside the radio and television production system or inside the radio and television broadcasting system. The above-mentioned communication network system and signal forwarding process also exist between multiple nodes or workstations working in collaboration, thereby achieving more efficient content production and broadcasting management.

[0046] Figure 2The hybrid network topology of a broadcasting and television playing system according to an embodiment of the present invention is shown. The network topology of the broadcasting and television playing system is a hybrid network of an IP sub-network and a video sub-network, and multiple source signals of different signal formats can be received and processed via the IP sub-network, for example, multiple TS signals and multiple SMPTE 2110 signals.

[0047] See also Figure 2 The IP sub-network of the broadcasting and television playing system includes a network switch 120 and an encoder 125. A video conversion device is included in the IP sub-network to support multiple source signals of different signal formats. If the source signal is a TS signal, the TS signal can be directly forwarded in the IP sub-network. Alternatively, the encoder 125 is used to convert the TS video into a SMPTE 2110 signal, and then the SMPTE 2110 signal is forwarded.

[0048] The network switch 120 in the broadcasting and television playing system adopts a tree topology, and a switch system is composed of multiple switches at different levels, including IGMP switch machines 121 to 124 and SDN switches 131 to 136.

[0049] SDN switches 131 to 136 are constructed using Leaf (spine) and Spine (leaf) topologies, including SDN switches 131 to 134 used as Spine switches, and SDN switches 135 and 136 used as Leaf switches. Spine switches are core switches in data center networks, and are usually used to build high-performance, scalable network architectures. They have high bandwidth and low latency characteristics, are used to connect multiple Leaf switches, and provide horizontal high-speed data transmission and forwarding functions. Leaf switches are the next-level switches connected to the Spine switch. As the entry point for connecting servers and other node devices, Leaf switches usually have more ports and support the connection of multiple servers and multiple node devices.

[0050] The IGMP switches 121 to 124 serve as access switches. The access switch is a switch at the lowest level connected to the leaf switch and is used to directly connect user devices and terminal devices.

[0051] In the above switch system, select SDN switches as spine switches and leaf switches, and select IGMP switches as access switches. SDN switches support centralized network control and can define network traffic through software, improving network flexibility and programmability, which is essential for dynamic and scalable data center environments. IGMP switches support multicast traffic management, which is very important for application scenarios that require efficient distribution of multimedia content or large-scale multicast communications.

[0052] See also Figure 1 and Figure 2 The video sub-network of the broadcasting and television playing system includes a video conversion device 104, a video routing device 105, and a receiving device 106. In this embodiment, the local video signal in the video sub-network is an SDI signal. The video conversion device 104, the video routing device 105, and the receiving device 106 are an IPG (IP Gateway) device, an SDI matrix, and an SDI receiving device, respectively.

[0053] During the broadcasting process of the radio and television broadcasting system, the staff only needs to select a source signal and a destination signal to automatically calculate the entire link of signal transmission and perform operations on it. The background management system will automatically set parameters for each device node according to the link, send flow tables to the SDN switch, and push and pull streams to the IGMP switch, so that the signal can be quickly transmitted from the source to the destination department that needs the signal.

[0054] Figure 3 Show Figure 2 An example of a signal forwarding path in the network topology shown in FIG. As shown in the figure, the master control department of the radio and television broadcasting system needs to retrieve an external TS signal to broadcast program content.

[0055] After selecting the source signal and the destination device, the background management system calculates the signal forwarding path according to the multi-path selection mechanism. During the path calculation process, it is determined whether it is necessary to pass through the signal conversion device according to the signal format. Since the source signal is a TS signal, in this example, the encoder 125 is used to convert the TS signal into a SMPTE 2110 signal. In the IP subnet, the signal forwarding path is sequentially through the IGMP switch 121, the encoder 125, and the SDN switches 135 and 136. The SDN switches 135 and 136 provide a dual-path forwarding path to share the network load. After entering the video subnet, the video conversion device 104 receives the IP signal and converts the IP signal into an SDI signal, and then the SDI signal forwarding path reaches the receiving device 106 via the video routing device 105.

[0056] Figure 4 A schematic block diagram of a hybrid network background management system according to an embodiment of the present invention is shown.

[0057] The backend management system 10 is used to Figure 3 After selecting the signal source 101 and the receiving device 106, the background management system 10 calculates the signal forwarding path according to the multi-path selection mechanism.

[0058] The backend management system 10 includes a network monitoring device 11, a path calculation device 12, and a path scheduling device 13. The backend management system 10 is, for example, an independent network server, or a specific application program on the network server.

[0059] The network monitoring device 11 is connected to the video devices in the video sub-network and the video devices and switches in the IP sub-network. As described above, the video devices in the IP sub-network are, for example, encoders for converting video signals in one signal format (e.g., TS signals) into video signals in another signal format (e.g., SMPTE 2110 signals).

[0060] The switches and video devices in the IP subnet are connected in the IP subnet, so the network monitoring device 11 can access the switches in the IP subnet through the IP address. The management ports of some video devices (e.g., SDI converters) in the video subnet are connected in the IP subnet, so the network monitoring device 11 can access some video devices in the video subnet through the IP address. The management ports of other video devices (e.g., SDI matrix) in the video subnet need to be connected to the network monitoring device 11 via a dedicated serial interface, so the network monitoring device 11 can access other video devices in the video subnet through the serial interface.

[0061] In an alternative embodiment, the network interface of the video device (e.g., video routing device) in the video sub-network is directly connected to the IP sub-network. In another alternative embodiment, the serial interface of the video device is connected to the IP sub-network via a serial port server. Thus, the network monitoring device 11 can access all video devices in the video sub-network through IP addresses to achieve distributed configuration and remote management of all video devices in the video sub-network.

[0062] The network monitoring device 11 automatically monitors multiple switches and multiple video devices in the hybrid network. For example, the network monitoring device 11 scans the video devices in the entire network through the LLDP (Link Layer Discovery Protocol) protocol every 5 seconds to obtain the connection status and port information of the switch, as well as the channel attributes of the video device. In the case where there is a local video device in the hybrid network, the network monitoring device 11 obtains the channel attributes of the video device via the serial interface.

[0063] Furthermore, the network monitoring device 11 can determine the online status and connection relationship of the node device, as well as the online status, channel occupancy and signal conversion direction of the video device based on the connection status and port information of the network switch and the channel attributes of the video device. The network monitoring device 11 constructs the topology of the hybrid network based on the scanned results, and compares the constructed network topology with the existing network topology, so as to know whether a new device in the topology is connected to the network or a device has left the network topology.

[0064] An important aspect in constructing the topology of a hybrid network is to identify the signal conversion direction of the signal conversion device. According to the signal conversion direction of the video conversion device, the subnetwork type of the input end and the output end of the video conversion device can be identified. In the case where the subnetwork type of the input end and the output end of the video conversion device are both IP subnetworks, different signal formats of the input end and the output end of the video conversion device can be identified.

[0065] The path calculation device 12 calculates an optimized signal forwarding path according to the network topology automatically updated by the network monitoring device 11. The path calculation device 12 applies the newly connected node device to the path selection strategy to improve the network forwarding performance according to the online status of the node device, and removes the disconnected node device from the path selection strategy to improve the signal stability.

[0066] For hybrid networks, different path selection strategies are used for different signal formats in different sub-networks. Figure 2 In the hybrid network topology shown, in the video subnetwork, the video router 105 provides multiple signal forwarding paths to improve the configuration flexibility of the video workstation; in the IP subnetwork, the input and output ends of the encoder 125 are TS signals and SMPTE 2110 signals respectively, and different signal sources share the encoder 125 for centralized forwarding to reduce system costs. Figure 2 In the hybrid network topology shown, in the IP subnet, SDN switches 135 and 136 provide a dual-path forwarding path to share the network load.

[0067] Furthermore, the path scheduling device 13 applies the signal forwarding path calculated by the path calculation device to the network switches and video devices in the hybrid network, so that the network switches and video devices in the hybrid network send the source signal to the target device according to the specified signal forwarding path.

[0068] Figure 5 A flow chart of a hybrid network monitoring method according to an embodiment of the present invention is shown. The hybrid network monitoring method is used in a broadcasting and television production system and / or a broadcasting system, and includes steps S01 to S03.

[0069] In step S01 , a plurality of switches and a plurality of video devices in a hybrid network are monitored.

[0070] In the video sub-network of the hybrid network, the video devices include video conversion devices and video routing devices. The video conversion devices are used to convert local video signals into IP signals, and the video routing devices are used to selectively forward local video signals to selected nodes or workstations. In the IP sub-network of the hybrid network, the network switches can be located in network structures of different levels, including multiple switches forming a multi-level network. In addition, the video conversion devices are used to convert IP signals of one signal format into IP signals of another signal format.

[0071] The network monitoring device 11 is connected to the management ports of multiple switches and multiple video devices via the IP subnet of the hybrid network, and periodically scans the switches and video devices of the entire network, so as to obtain switch information and video device information.

[0072] In step S02, when the multiple switches and the multiple video devices change, the switch information and the video device information of the hybrid network are automatically updated.

[0073] The switch information at least includes: connection information of multiple switches; and port information of multiple switches. The online status of multiple switches is determined according to the connection information of multiple switches, and the working mode of multiple switches is identified as one of SDN mode and IGMP mode. Further, the connection relationship between multiple switches is determined according to the port information of multiple switches, and the port bandwidth and traffic load of multiple switches are obtained.

[0074] The video device includes a video conversion device and a video routing device. The video conversion device is used for signal conversion between a first signal format and a second signal format. The video routing device is used for transmitting a video signal from a first input terminal to a selected first output terminal. The video device information includes at least a channel attribute of the video routing device, and the channel attribute includes: a channel usage status and a signal conversion direction of the video conversion device.

[0075] In step S03, according to the switch information and video device information of the hybrid network, the video sub-network and the IP sub-network in the hybrid network are identified, and the topology structure of the hybrid network is constructed.

[0076] According to the signal conversion direction of the video conversion device in the video subnetwork of the hybrid network, the subnetwork types of the input end and the output end of the video conversion device are identified. In the case where the input end and the output end of the video conversion device are TS signals and SMPTE 2110 signals respectively, the subnetwork types of the input end and the output end of the video conversion device are both IP subnetworks. In the case where the input end of the video conversion device is an SDI signal and the output end is a SMPTE 2110 signal, the input end of the video conversion device is a video subnetwork and the output end is an IP subnetwork; in the case where the input end of the video conversion device is a SMPTE 2110 signal and the output end is an SDI signal, the input end of the video conversion device is an IP subnetwork and the output end is a video subnetwork.

[0077] Furthermore, the background service system of the hybrid network calculates an optimized signal forwarding path based on the automatically updated network topology to improve network forwarding performance and signal stability.

[0078] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and the modified use based on the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hybrid network monitoring method for a broadcast television system, comprising: Monitor multiple switches and multiple video devices in a hybrid network; When the plurality of switches and the plurality of video devices change, automatically updating the switch information and the video device information of the hybrid network; as well as According to the switch information and video device information of the hybrid network, the video sub-network and the IP sub-network in the hybrid network are identified, and the topology structure of the hybrid network is constructed.

2. The hybrid network monitoring method according to claim 1, wherein: The switch information at least includes: Connection information of the plurality of switches; and The port information of the multiple switches.

3. The hybrid network monitoring method according to claim 2, further comprising: The online status of the multiple switches is determined according to the connection information of the multiple switches, and the working mode of the multiple switches is identified as one of the SDN mode and the IGMP mode.

4. The hybrid network monitoring method according to claim 2, further comprising: The connection relationship between the multiple switches is determined according to the port information of the multiple switches, and the port bandwidth and traffic load of the multiple switches are obtained.

5. The hybrid network monitoring method according to claim 1, wherein: The plurality of video devices include a video conversion device and a video routing device. The video conversion device is used for signal conversion between a first signal format and a second signal format. The video routing device is used for transmitting a video signal from a first input terminal to a selected first output terminal.

6. The hybrid network monitoring method according to claim 5, wherein: The video device information at least includes channel attributes of the video routing device, and the channel attributes include: channel usage status and signal conversion direction of the video conversion device.

7. The hybrid network monitoring method according to claim 6, wherein: The steps to build the topology of a hybrid network include: According to the signal conversion direction of the video conversion device, the sub-network types of the input end and the output end of the video conversion device are identified.

8. The hybrid network monitoring method according to claim 7, wherein: The input end of the video conversion device is one of the SDI signal, the TS signal and the SMPTE 2110 signal, and the output end is the other one of the SDI signal, the TS signal and the SMPTE 2110 signal.

9. The hybrid network monitoring method according to claim 1, wherein: The step of automatically updating the switch information and video device information of the hybrid network includes: The switches and video devices of the entire hybrid network are scanned periodically through the management ports of the multiple switches and multiple video devices in the hybrid network, and the switch information and video device information of the hybrid network are updated according to the scanning results.

10. A hybrid network monitoring device, used to execute the hybrid network monitoring method according to any one of claims 1 to 9.

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