CN111770316A - Audio and video encoder - Google Patents
Audio and video encoder Download PDFInfo
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- CN111770316A CN111770316A CN202010710264.1A CN202010710264A CN111770316A CN 111770316 A CN111770316 A CN 111770316A CN 202010710264 A CN202010710264 A CN 202010710264A CN 111770316 A CN111770316 A CN 111770316A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/562—Brokering proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Abstract
The invention relates to an audio and video encoder, which transmits audio and video streams under different conditions through two independent audio and video stream transmission links, wherein one of the two independent audio and video stream transmission links is a normally working transmission link consisting of an audio and video input interface, a resource temporary storage module, an audio and video compression coding module, an audio and video main output interface and a transfer server, a resource scheduling module judges which data link the audio and video stream acquired by an audio and video acquisition terminal is transmitted through, when the audio and video compression coding module in the encoder fails, the locally acquired audio and video stream is transmitted to the audio and video encoder in other idle states in a video monitoring network to compress and code the audio and video, and then the data is output to a transfer server and is pushed by the transfer server uniformly, so that the reliability of the encoder is ensured.
Description
Technical Field
The invention relates to the technical field of audio and video encoders, in particular to an audio and video encoder.
Background
The video encoder is composed of a special audio and video compression codec chip, a data and alarm input and output channel, a network interface, an audio and video interface (HDMI, VGA, HD-SDI), RS232 serial interface control, protocol interface control, embedded software and the like.
With the wide application of video monitoring technology in traffic and public security systems, the reliability requirement of the whole video monitoring system is higher and higher, wherein the reliability of a video monitoring server can be realized by a dual-computer backup technology, and how to improve the reliability of a front-end encoder is one of the problems that people face to be solved urgently. When a software and hardware fault occurs in an encoder and a link fault of an access network, a live service on demand of a user is interrupted, and in order to ensure user experience, it is necessary to design a rapid fault protection mechanism to enable the user to obtain a live video image again, instead of only informing the user to immediately repair the fault. However, in a medium-large monitoring network, the number of encoders may reach thousands or even hundreds of thousands, and a scheme similar to a dual-computer backup scheme adopted by a server is obviously unrealistic, and the cost is too high, so that the feasibility is obviously not available.
Disclosure of Invention
In view of this, an object of the present invention is to provide an audio/video encoder, which can effectively improve the reliability of the encoder.
The invention relates to an audio and video encoder which is applied to a video monitoring network, wherein the video monitoring network comprises a plurality of audio and video encoders and a transfer server, the audio and video encoders are all in communication connection with the transfer server and comprise an audio and video input interface, a resource temporary storage module, an audio and video compression encoding module, an audio and video main output interface, an audio and video standby output interface and a resource scheduling module;
the audio/video input interface is used for receiving audio/video stream from the audio/video acquisition terminal and transmitting the audio/video stream to the resource temporary storage module;
the resource temporary storage module is used for temporarily storing the audio and video stream and directly sending the audio and video stream to the audio and video compression coding module or the audio and video standby output interface according to the decision of the resource scheduling module;
the audio and video standby output interface is used for sending the audio and video stream from the resource temporary storage module to the transfer server and forwarding the audio and video stream to the video input interfaces of other audio and video encoders in the video monitoring network by the transfer server;
the audio and video compression coding module is used for compressing and coding the audio and video stream from the resource temporary storage module and sending the audio and video stream to the audio and video main output interface;
the audio and video main output interface is used for sending the compressed and coded audio and video to a transfer server, and the transfer server performs unified audio and video plug flow;
the resource scheduling module is used for judging whether the audio and video compression coding module and the audio and video main output interface of the machine have faults or not and determining to send the audio and video stream in the resource temporary storage module to the audio and video compression coding module or the audio and video standby output interface according to the judgment result.
Furthermore, the audio and video input interface comprises an analog signal interface, a digital signal interface and an Ethernet interface, the analog signal interface comprises a VGA interface, a TV interface, an AV interface, an S-VIDIO interface and an RGBHV interface, the digital signal interface comprises an HDMI interface, a DVI interface, a DP interface and an SDI interface, and the transfer server is connected with the audio and video input interface through the Ethernet interface.
Further, the audio and video main output interface and the audio and video standby output interface are both Ethernet interfaces.
Further, the audio and video encoder is connected with the transfer server through an optical fiber network.
Furthermore, the audio and video input interface, the resource temporary storage module, the audio and video standby output interface and the resource scheduling module all use replaceable lithium batteries as power supplies.
The invention has the beneficial effects that: the invention relates to an audio and video encoder, which transmits audio and video streams under different conditions through two independent audio and video stream transmission links, wherein one is a normally working transmission link consisting of an audio and video input interface, a resource temporary storage module, an audio and video compression coding module, an audio and video main output interface and a transfer server, the other is a fault transmission link consisting of the audio and video input interface, the resource temporary storage module, an audio and video standby output interface, the transfer server and other audio and video encoders, a resource scheduling module judges which data link the audio and video stream acquired by an audio and video acquisition terminal is transmitted through, and when the audio and video compression coding module in the encoder fails, the audio and video stream is transmitted through the audio and video input interface, the resource temporary storage module, the audio and video standby output interface, the transfer server and other audio and video encoder links, the locally acquired audio and video stream is transmitted to other audio and video encoders in idle states in the video monitoring network to compress and encode the audio and video, and then the audio and video stream is output to the transfer server and pushed by the transfer server uniformly, so that the reliability of the encoders is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. As shown in fig. 1: the audio and video encoder of the embodiment is applied to a video monitoring network, the video monitoring network comprises a plurality of audio and video encoders and a transfer server, and the plurality of audio and video encoders are all in communication connection with the transfer server and comprise an audio and video input interface, a resource temporary storage module, an audio and video compression encoding module, an audio and video main output interface, an audio and video standby output interface and a resource scheduling module;
the audio/video input interface is used for receiving audio/video stream from the audio/video acquisition terminal and transmitting the audio/video stream to the resource temporary storage module;
the resource temporary storage module is used for temporarily storing the audio and video stream and directly sending the audio and video stream to the audio and video compression coding module or the audio and video standby output interface according to the decision of the resource scheduling module;
the audio and video standby output interface is used for sending the audio and video stream from the resource temporary storage module to the transfer server and forwarding the audio and video stream to the video input interfaces of other audio and video encoders in the video monitoring network by the transfer server;
the audio and video compression coding module is used for compressing and coding the audio and video stream from the resource temporary storage module and sending the audio and video stream to the audio and video main output interface;
the audio and video main output interface is used for sending the compressed and coded audio and video to a transfer server, and the transfer server performs unified audio and video plug flow;
the resource scheduling module is used for judging whether the audio and video compression coding module and the audio and video main output interface of the machine have faults or not and determining to send the audio and video stream in the resource temporary storage module to the audio and video compression coding module or the audio and video standby output interface according to the judgment result.
The invention relates to an audio and video encoder, which transmits audio and video streams under different conditions through two independent audio and video stream transmission links, wherein one is a normally working transmission link consisting of an audio and video input interface, a resource temporary storage module, an audio and video compression coding module, an audio and video main output interface and a transfer server, the other is a fault transmission link consisting of the audio and video input interface, the resource temporary storage module, an audio and video standby output interface, the transfer server and other audio and video encoders, a resource scheduling module judges which data link the audio and video stream acquired by an audio and video acquisition terminal is transmitted through, and when the audio and video compression coding module in the encoder fails, the audio and video stream is transmitted through the audio and video input interface, the resource temporary storage module, the audio and video standby output interface, the transfer server and other audio and video encoder links, the locally acquired audio and video stream is transmitted to other audio and video encoders in idle states in the video monitoring network to compress and encode the audio and video, and then the audio and video stream is output to the transfer server and pushed by the transfer server uniformly, so that the reliability of the encoders is ensured.
In this embodiment, the audio/video input interface includes an analog signal interface, a digital signal interface and an ethernet interface, the analog signal interface includes a VGA interface, a TV interface, an AV interface, an S-video interface and an RGBHV interface, the digital signal interface includes an HDMI interface, a DVI interface, a DP interface and an SDI interface, the relay server is connected to the audio/video input interface through the ethernet interface, the audio/video acquisition terminal includes a camera and a microphone, the acquisition is an analog signal, but the digital signal may also be possible for the analog signal when outputting to the audio/video input interface, and therefore the adaptability of the audio/video input interface can be enhanced by setting various interfaces.
In this embodiment, the audio/video main output interface and the audio/video standby output interface are both ethernet interfaces.
In this embodiment, the audio/video encoder is connected to the relay server through the optical fiber network, the audio/video main output interface and the audio/video standby output interface are connected to the ONU (optical network unit) through the ultra-five type line, the ONU is connected to the OLT (optical line terminal) through the optical fiber, the OLT is connected to the switch, and the switch is connected to the relay server, so that a link using optical signal propagation is formed.
In this embodiment, the audio/video input interface, the resource temporary storage module, the audio/video standby output interface, and the resource scheduling module all use replaceable lithium batteries as power supplies, so as to avoid a standby link when the audio/video compression encoding module and the audio/video main output interface are out of order: the audio and video input interface, the resource temporary storage module, the audio and video standby output interface, the transfer server and other audio and video encoders can work normally.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (5)
1. The utility model provides an audio and video encoder, is applied to in the video monitoring network, and this video monitoring network contains a plurality of audio and video encoders and transfer server, and a plurality of audio and video encoders all are connected with transfer server communication, its characterized in that: the system comprises an audio and video input interface, a resource temporary storage module, an audio and video compression coding module, an audio and video main output interface, an audio and video standby output interface and a resource scheduling module;
the audio/video input interface is used for receiving audio/video stream from the audio/video acquisition terminal and transmitting the audio/video stream to the resource temporary storage module;
the resource temporary storage module is used for temporarily storing the audio and video stream and directly sending the audio and video stream to the audio and video compression coding module or the audio and video standby output interface according to the decision of the resource scheduling module;
the audio and video standby output interface is used for sending the audio and video stream from the resource temporary storage module to the transfer server and forwarding the audio and video stream to the video input interfaces of other audio and video encoders in the video monitoring network by the transfer server;
the audio and video compression coding module is used for compressing and coding the audio and video stream from the resource temporary storage module and sending the audio and video stream to the audio and video main output interface;
the audio and video main output interface is used for sending the compressed and coded audio and video to a transfer server, and the transfer server performs unified audio and video plug flow;
the resource scheduling module is used for judging whether the audio and video compression coding module and the audio and video main output interface of the machine have faults or not and determining to send the audio and video stream in the resource temporary storage module to the audio and video compression coding module or the audio and video standby output interface according to the judgment result.
2. An audio-video encoder according to claim 1, characterised in that: the audio and video input interface comprises an analog signal interface, a digital signal interface and an Ethernet interface, the analog signal interface comprises a VGA interface, a TV interface, an AV interface, an S-VIDIO interface and an RGBHV interface, the digital signal interface comprises an HDMI interface, a DVI interface, a DP interface and an SDI interface, and the transfer server is connected with the audio and video input interface through the Ethernet interface.
3. An audio-video encoder according to claim 1, characterised in that: the audio and video main output interface and the audio and video standby output interface are both Ethernet interfaces.
4. An audio-video encoder according to claim 1, characterised in that: the audio and video encoder is connected with the transfer server through an optical fiber network.
5. An audio-video encoder according to claim 1, characterised in that: the audio and video input interface, the resource temporary storage module, the audio and video standby output interface and the resource scheduling module all use replaceable lithium batteries as power supplies.
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| CN202010710264.1A CN111770316B (en) | 2020-07-22 | 2020-07-22 | Audio and video encoder |
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| CN202010710264.1A CN111770316B (en) | 2020-07-22 | 2020-07-22 | Audio and video encoder |
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