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WO2018129758A1 - Procédé de distribution vidéo de surveillance et dispositif associé - Google Patents

Procédé de distribution vidéo de surveillance et dispositif associé Download PDF

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Publication number
WO2018129758A1
WO2018129758A1 PCT/CN2017/071379 CN2017071379W WO2018129758A1 WO 2018129758 A1 WO2018129758 A1 WO 2018129758A1 CN 2017071379 W CN2017071379 W CN 2017071379W WO 2018129758 A1 WO2018129758 A1 WO 2018129758A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
monitoring
media processing
processing device
monitoring server
Prior art date
Application number
PCT/CN2017/071379
Other languages
English (en)
Chinese (zh)
Inventor
陈云
Original Assignee
邦彦技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 邦彦技术股份有限公司 filed Critical 邦彦技术股份有限公司
Publication of WO2018129758A1 publication Critical patent/WO2018129758A1/fr

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Classifications

    • 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
    • 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
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • 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
    • H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/6437—Real-time Transport Protocol [RTP]

Definitions

  • the present invention relates to the field of surveillance video processing, and in particular, to a method and apparatus for distributing surveillance video.
  • the monitoring system consists of 5 parts: camera, transmission, control, display, and record registration.
  • the camera transmits the video image to the media processing device through the coaxial video cable, and the media processing device distributes the video signal to the monitoring and recording devices such as the monitoring terminals, and simultaneously records the voice signal to be transmitted into the video recorder.
  • the operator can issue commands to control the up, down, left, and right movements of the pan/tilt and adjust the zoom magnification of the lens, and can realize the multi-channel camera and the pan/tilt through the monitoring terminal. Switch between.
  • the traditional video surveillance system calls video directly from the camera, and does not consider the limitations of the external environment. For example, without considering the pressure of bandwidth resources, under certain network transmission speeds, such as different monitoring terminals to the same surveillance video. When the call is made, the call bottleneck occurs and the number of calls is limited.
  • the object of the present invention is to overcome the above problems existing in the prior art, and to provide a monitoring video distribution method and device thereof, which are used for optimizing bandwidth utilization under limited bandwidth and breaking the limitation of a limited number of video resources called by a camera resource. .
  • a monitoring video distribution method and device thereof comprising a monitoring terminal, a monitoring server, a media processing device, a codec device, and a camera;
  • the monitoring terminal is configured to provide an interactive interface for a video resource scheduling operation, and implement a video one-click call, a video call, and a video push function;
  • the monitoring terminal includes a headquarters monitoring terminal and a branch monitoring terminal;
  • the monitoring server is configured to perform integrated scheduling control, video media processing, user registration management, and call routing analysis functions;
  • the media processing device is configured to implement video stream distribution and an end user registration proxy function
  • the codec device is configured to provide an audio and video access function, and provide a codec function of the high definition video, and a video resolution conversion function;
  • the camera is used to implement video image acquisition and transmission functions.
  • the device accessed by the codec device includes a high definition or standard definition analog camera, a large screen, a projector, a computer image, and an analog matrix.
  • monitoring terminal the media processing device, and the codec device follow the standard SIP protocol REGISTER message, and the monitoring terminal, the media processing device, and the codec device are registered to the monitoring server.
  • the monitoring terminal, the monitoring server, the media processing device, the codec device, and the inter-camera communication adopt a signaling flow and a media stream; the signaling flow is used for transmitting and returning control instructions; and the media stream is used for Transfer monitoring video data information.
  • the signaling flow is implemented by using a SIP message.
  • the media stream is implemented by using an RTP message.
  • a method for distributing surveillance video includes the following steps:
  • the video stream communication between the monitoring terminal and the monitoring server, the monitoring server, and the media processing device is established.
  • the headquarters monitoring terminal sends signaling to the monitoring server, and the monitoring server returns the SDP message of the monitoring server paired with the headquarters monitoring terminal;
  • the monitoring server receives the headquarters monitoring.
  • the terminal forwards to the matched media processing device, and the media processing device returns an SDP message of the media processing device paired with the monitoring server;
  • the media processing device sends signaling to the matched codec device, and the codec device returns an SDP message of the codec device paired with the media processing device;
  • the branch monitoring terminal sends signaling to the monitoring server
  • the receiving branch monitoring terminal of the monitoring server sends signaling to the matched media processing device.
  • the media processing device determines to adjust the repeatability of the access device, and the monitoring server returns an SDP message of the monitoring server paired with the branch monitoring terminal; the media processing device returns an SDP message of the media processing device paired with the monitoring server.
  • the video resolution correction is further included; the video resolution correction is used to unify the resolution between the monitoring terminal, the monitoring server, and the codec device.
  • the video resolution correction includes video scaling; the video scaling is used by the monitoring terminal, and the monitoring server has a resolution smaller than that of the encoding and decoding device, and the scaling is performed.
  • Decode device video stream resolution is used by the monitoring terminal, and the monitoring server has a resolution smaller than that of the encoding and decoding device, and the scaling is performed.
  • the video resolution correction further includes video padding; the video padding is used for Filling the video stream vacant area of the codec device when the resolution of the monitoring terminal and the monitoring server is greater than the resolution of the codec device
  • the present invention provides a monitoring device for monitoring video, including a monitoring terminal, a monitoring server, a media processing device, a codec device, and a camera.
  • the present invention also relates to a method for distributing a monitoring video; When the monitoring terminal monitors the video of the monitoring point, it does not establish the video stream to the codec device again. Instead, after directly performing video comparison processing from the media processing device, the video stream is distributed to the branch monitoring terminal to save video. Streaming data, while any subsequent monitoring terminal monitors the camera video of the monitoring point, distributes the data after comparison and processing by the media processing device, breaks the limitation of the number of video calls of the monitoring point, saves the signaling message establishment process and big data.
  • the video stream transmission process the invention optimizes the media processing device to call the video stream processing mechanism of the camera resource under a limited bandwidth, thereby improving the bandwidth utilization.
  • FIG. 1 is a schematic diagram of a monitoring device for distributing video according to the present invention
  • FIG. 2 is a schematic diagram of a distribution process of monitoring video according to the present invention.
  • a monitoring video distribution method including a monitoring terminal, a monitoring server, a media processing device, a codec device, and a camera;
  • the monitoring terminal An interactive interface for providing a video resource scheduling operation, implementing a video one-click call, a video call, and a video push function;
  • the monitoring terminal includes a headquarters monitoring terminal and a branch monitoring terminal; and the monitoring server is used to complete the comprehensive scheduling Control, video media processing, user registration management, and call routing analysis functions;
  • the media processing device is configured to implement video stream distribution, and the terminal user registration proxy function;
  • the codec device is configured to provide audio and video access functions, and Provide codec function of HD video and video resolution conversion function;
  • the camera is used to realize video image acquisition and transmission.
  • the device accessed by the codec device comprises a high definition or standard definition analog camera, a large screen, a projector, a computer image, and an analog matrix.
  • the monitoring terminal, the media processing device, and the codec device follow a standard SIP protocol REGISTER message, and the monitoring terminal, the media processing device, and the codec device are registered with the monitoring server.
  • the monitoring terminal, the monitoring server, the media processing device, the codec device, and the inter-camera communication adopt a signaling flow and a media stream; the signaling flow is used for transmitting and returning control instructions; and the media stream is used for Transfer monitoring video data information.
  • the signaling flow is implemented by using a SIP message.
  • the media stream is implemented by using an RTP message.
  • a method for distributing surveillance video includes the following steps:
  • the video stream communication between the monitoring terminal and the monitoring server, the monitoring server, and the media processing device is established.
  • the headquarters monitoring terminal sends signaling to the monitoring server, and the monitoring server returns the SDP message of the monitoring server paired with the headquarters monitoring terminal;
  • the monitoring server receives the headquarters monitoring.
  • the terminal forwards to the matched media processing device, and the media processing device returns an SDP message of the media processing device paired with the monitoring server;
  • the media processing device sends signaling to the matched codec device, and the codec device returns an SDP message of the codec device paired with the media processing device;
  • the branch monitoring terminal sends signaling to the monitoring server
  • the receiving branch monitoring terminal of the monitoring server sends signaling to the matched media processing device.
  • the media processing device determines to adjust the repeatability of the access device, and the monitoring server returns an SDP message of the monitoring server paired with the branch monitoring terminal; the media processing device returns an SDP message of the media processing device paired with the monitoring server.
  • the video resolution correction is further included; the video resolution correction is used to unify the resolution between the monitoring terminal, the monitoring server, and the codec device.
  • the video resolution correction comprises video scaling; the video scaling is used by the monitoring terminal, and the monitoring server has a resolution smaller than the resolution of the codec device, and the scaling is performed.
  • Decode device video stream resolution is used by the monitoring terminal, and the monitoring server has a resolution smaller than the resolution of the codec device, and the scaling is performed.
  • the video resolution correction further includes video padding; the video padding is used for the monitoring terminal, and the monitoring server has a resolution greater than the resolution of the codec device. Filling the video stream free area of the codec device.
  • the codec device A refers to the codec device in the monitoring point 1 in FIG. 1, and the P1 to P6: the headquarters monitoring terminal and the monitoring server, the monitoring server, and the media processing device follow the standard SIP protocol.
  • the message flow is set up to complete the S1 and S2 video streams.
  • P1 carries the SDP message of the monitoring terminal
  • P4 returns the SDP message of the monitoring server paired with the headquarters monitoring terminal
  • P2 carries the SDP message of the monitoring server receiving the video stream.
  • the P3 returns the SDP message of the media processing device paired with the monitoring server, and the monitoring server also needs to perform the bridging process, and the video stream of the step S2 is automatically returned to the monitoring terminal through the S1 step.
  • the INVITE message format is as follows:
  • the c attribute and the m attribute in the message include IP and port number information; the a attribute includes an encoding format. It should be understood that the above format, as an example value, varies according to the actual environment, but all follow the definition of a standard SDP message.
  • P7-P9 The video stream that completes the S3 step is established according to the standard SIP protocol message. At this time, the P7 carries the SDP message of the media processing device, and the P8 returns the SDP message of the codec device paired with the media processing device.
  • the video media stream information received by the S3 point will be video-scaled according to the previous signaling negotiation message before returning to the video through the S2 and S1 points.
  • the S3 video is subject to the HD video, when S3 If the returned video resolution is greater than the video resolution of S2 and S1, the video reduction processing is performed; when the video resolution returned by S3 is equal to the video resolution size of S2 and S1, it is directly forwarded; when the video resolution returned by S3 is smaller than For the video resolutions of S2 and S1, the video received at point S3 is filled with reference to the center point of the video image of S2, and the area with insufficient filling is supplemented with black, and then the filled video is returned to point S2.
  • the video stream that completes the S4 step is established according to the standard SIP protocol message.
  • the P10 carries the SDP message of the branch monitoring terminal, the P11 transparently transmits the SDP message, and the P12 returns the media processing paired with the branch monitoring terminal.
  • the SDP message of the device, the P12 transparently transmits the SDP message; in the step of P11, the media processing device determines, according to the account of the camera to be viewed, that the camera resources processed and processed are the same, according to the video scaling processing mechanism mentioned above. After the video is processed and then sent to the branch monitoring terminal, if it is determined that there is already a video stream of the same resolution that is scaled and processed before the scaling process, the scaled video stream is directly copied and forwarded to S4 point.
  • the video stream process established by S3 may be preceded by the video stream process established by S1 and S2, and only needs to be modified before the INVITE signaling sequence of the codec device A, so by adjusting the signaling in the process.
  • the order to satisfy the processing of video distribution is also within the scope of this patent.
  • the invention provides a device for monitoring video distribution, including a monitoring terminal, a monitoring server and a media.
  • the present invention also relates to a method for distributing a monitoring video; the present invention does not establish a video stream to the codec device again when the video of the monitoring terminal monitors the monitoring point.
  • the video stream is distributed to the segment monitoring terminal to save the video stream data, and at the same time, any subsequent monitoring terminal monitors the camera video of the monitoring point, which is processed from the media processing device.
  • Distributing data breaking the limitation of the number of video calls of the monitoring point, saving the signaling message establishment process and the video streaming process of large data volume; the invention optimizes the video stream of the media processing device to the camera resource under limited bandwidth Call processing mechanisms to increase bandwidth utilization.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Telephonic Communication Services (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un dispositif et un procédé de distribution vidéo de surveillance. Le dispositif de distribution vidéo de surveillance comprend un terminal de surveillance, un serveur de surveillance un dispositif de traitement multimédia, un dispositif d'encodage et de décodage, et une caméra; un flux vidéo vers le dispositif d'encodage et de décodage n'est pas rétabli lors de l'appel de la vidéo d'un site de surveillance par un terminal de surveillance de division est effectué ; et, au lieu de cela, le flux vidéo est distribué au terminal de surveillance de division après qu'un traitement de comparaison de vidéo soit effectué directement dans le dispositif de traitement multimédia, ce qui permet d'économiser des données de flux vidéo ; et en outre, l'appel ultérieur de la vidéo de caméra du site de surveillance par n'importe quel terminal de surveillance est obtenu par la distribution des données après qu'un traitement de comparaison soit effectué dans le dispositif de traitement multimédia, ce qui casse la limitation des appels de la vidéo d'un site de surveillance ; en raison du processus d'établissement de message de signalisation réduit et du processus de transmission de flux vidéo avec un grand volume de données, un mécanisme de traitement d'appel de flux vidéo du dispositif de traitement multimédia à des ressources de caméra est optimisé dans une bande passante limitée, et ainsi l'efficacité d'utilisation de bande passante est améliorée.
PCT/CN2017/071379 2017-01-13 2017-01-17 Procédé de distribution vidéo de surveillance et dispositif associé WO2018129758A1 (fr)

Applications Claiming Priority (2)

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CN201710025470.7A CN106791695A (zh) 2017-01-13 2017-01-13 一种监控视频的分发方法及其装置
CN2017100254707 2017-01-13

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CN112188227A (zh) * 2020-09-30 2021-01-05 武汉中科通达高新技术股份有限公司 一种流媒体数据分发方法和装置
CN112258912A (zh) * 2020-10-10 2021-01-22 深圳市捷视飞通科技股份有限公司 网络互动教学方法、装置、计算机设备和存储介质
CN114040166A (zh) * 2021-11-11 2022-02-11 浩云科技股份有限公司 一种分布式流媒体分组管理系统、方法、设备及介质

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