CN101252681A - Video monitoring system based on AVS - Google Patents
Video monitoring system based on AVS Download PDFInfo
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- CN101252681A CN101252681A CN 200810101519 CN200810101519A CN101252681A CN 101252681 A CN101252681 A CN 101252681A CN 200810101519 CN200810101519 CN 200810101519 CN 200810101519 A CN200810101519 A CN 200810101519A CN 101252681 A CN101252681 A CN 101252681A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 37
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Abstract
The invention discloses an AVS-based video monitoring system. The video monitoring system comprises an application layer completing the function defined by the user by using a network and the protocol thereof. The application layer comprises a video coder used for coding video data collected by a camera head, and generating video data flow lines after the coding; a coprocessor used for processing the video data collected by the camera head, and obtaining the additional information required by the users to generate metadata; a managing and controlling module used for packaging the video data flow lines and the metadata, and performing synchronous and uniform managing and controlling operation. The system is used for performing video monitoring, motion detection and alarming, etc. and can be transmitted through the network, therefore being more suitable for the requirement on video monitoring.
Description
Technical field
The present invention relates to the improvement of AVS system, particularly a kind of video monitoring system based on AVS.
Technical background
The AVS standard is the advanced video encoding technical standard that China has independent intellectual property right, but it is the technical standard towards the radio and television professional application, and this standard is directly used towards safety precaution also has bigger inadaptability.Because the applied environment and the condition of security protection video monitoring are harsher, usually need all weather conditions work in following 24 hours, the reliability of equipment (or system), fail safe, Electro Magnetic Compatibility, environmental suitability etc. are required very high, also incomplete same to the requirement of each links such as the collection of image information, transmission, exchange, control, demonstration, storage, broadcast with professional TV.So, be necessary to use encoding and decoding standard and security system specifically created advanced person, that meet the video monitoring needs at safety monitoring.
In the prior art, the AVS standard has only been stipulated the encoding and decoding of audio frequency and video, how the video data behind the coding is not transmitted limiting in network.Simultaneously, only there is audio, video data can not well carry out video monitoring.Therefore the video monitoring that carries out for dependency network just need be expanded existing AVS standard, so that the video data behind the coding more adapts to Network Transmission, also needs simultaneously the data form is adjusted, with the needs of adaptive video monitoring.
Summary of the invention
In view of this, the present invention is directed to the AVS standard and improve, on the basis that keeps AVS encoding and decoding core texture, in system layer, compression layer and the expansion of fail safe several respects, with the needs of adaptive video monitoring.
In order to achieve the above object, a kind of video monitoring system of the present invention based on AVS, it comprises:
Application layer utilizes network and agreement thereof to finish user-defined function, and described application layer comprises:
Video encoder is used for the coding video data to camera collection, and the coding back generates the video data streamline;
Data processing module is used for the video data of camera collection is handled, and obtains the first required additional information of user, the generator data;
Management control module is used for described video data streamline and metadata packing, and carries out synchronous, unified management control operation.
Further, described data processing module is a coprocessor.
Further, described application layer also comprises audio coder, is used for the voice data of microphone collection is encoded, and the coding back generates the voice data streamline and sends into management control module; Described data processing module is used for the voice data of microphone collection is handled, and obtains the second required additional information of user, and merges the generator data with described first additional information.
Further, described management control module carries out synchronous, unified management operation to described voice data streamline, video data streamline and metadata synchronization packing.
Further, described management control module is encrypted or scrambling the packet after packing.
Further, described management control module adopts MPEG-TS (MPEG-Transport Stream, mpeg data transport stream) to voice data streamline, video data streamline and metadata packing.
Further, described system also comprises:
Data link layer is used to define the frame structure of Ethernet, makes the Frame of link layer can pass through Network Transmission, and process frames of data is connected with logic by the physics of network interface to its destination;
Network layer is used to handle route and source end cut apart the reorganization with destination partition data that send data of network layer data bag from a network to another network; With
Transport layer provides transfer of data end to end, Data transmission between an application and its far-end peer-entities.
Further, transport layer generates UDP datagram by Real-time Transport Protocol with the MPEG-TS coding.
Further, transport layer generates the tcp data newspaper by rtcp protocol with the MPEG-TS coding.
Further, described data link layer adopts IPv4 or IPv6 agreement to carry out transfer of data; Described data link layer adopts Ethernet.
The present invention has generated the metadata that has additional information, in order to carry out video monitoring, motion detection and warning etc. by data processing module.Described management control module merges metadata and the video data streamline that adopts the AVS coding in application layer, be used to be combined uniform data set, unified management and unified control and encrypt or the like.Therefore determined application layer, transport layer, network layer and data link layer particular content further, made merging data can pass through Network Transmission, the needs of adaptive video monitoring more.
Description of drawings
Fig. 1 is a kind of structural representation of preferred embodiment that the present invention is based on the video monitoring system of AVS.
Embodiment
The present invention has realized the monitoring audio-video network communication based on the IP packet.The IP packet is by network Data transmission between distinct device, and the most frequently used is the client-server pattern.
In a specific embodiment, preferably in application layer, existing AVS standard comprises audio coding, and therefore video coding also generates voice data and video data synchronously.And in field of video monitoring, simple audio coding and video coding can not be finished monitoring well.Because in the process of monitoring, also need to add other satellite informations, as motion detection, warning message or the like.
But these information can not merely be sent into transport layer packing transmission, because in field of video monitoring, any monitor message such as motion detection information, warning message or the like all need well could to realize the purpose monitored synchronously exactly with audio, video data.
Therefore the present invention adds data processing module generator data simultaneously in application layer, and metadata and audio, video data are carried out synchronously.Preferably, described data processing module can be a coprocessor.Audio, video data streamline and metadata are synchronously packed in management control module, and be preferred, adopts MPEG-TS to generate the MPEG-TS data.MPEG-TS data itself are packaged in audio, video data and metadata together, realized well the three synchronously, also realized unified set, unified management, unified control, if desired, operation can realize in MPEG-TS for data encryption data scrambling or the like.
Coprocessor is directly controlled microphone and camera, gathers the additional information that is used for video monitoring, and described additional information is respectively from camera and microphone, as motion detection result information, warning message etc.For example, need to use motion detection under certain monitoring condition, coprocessor obtains the video information that camera captures, and carries out motion detection and handles, judge have this moment the specific dynamic motion to produce in the image when coprocessor, then the generator data are carried out record to this state.For example need the abnormal sound of collection site again under certain monitoring condition, as shot, shriek etc., coprocessor obtains the audio-frequency information that microphone captures, and handles judgement, if any unusually then reporting to the police.
Both comprised the audio, video data streamline that utilizes AVS agreement itself to generate in the MPEG-TS data after the described packing, comprised simultaneously that the metadata that adopts the coprocessor generation was as satellite information.It is synchronous with the time point of the timestamp of video coding and audio coder generation video flowing and audio stream that need are put in the time generation of metadata.The MPEG-TS data send under the control of RTSP agreement.
Like this, the present invention has generated video data stream in the packing of source end, and can unify operations such as set, unified management, control, encryption to this video data flow operation, has utilized the AVS agreement and video surveillance applications is carried out in its expansion.
In another specific embodiment, described system constitutes by four layers, has defined the mechanism of transmitting real-time video, audio frequency, additional specific information and control information in the network between the client and server, and its schematic diagram as shown in Figure 1.Wherein:
Link layer (Link Layer)
The frame structure of data link layer definition Ethernet guarantees that the Frame of link layer can pass through Network Transmission.Its process frames of data is connected with logic by the physics of network interface to its destination.
Network layer (Network Layer)
Network layer comprises IPv4 and IPv6, handles the route of network layer data bag from a network to another network.It is responsible for the reorganization with the destination partition data cut apart that the source end sends data.
Transport layer (Transport Layer)
Transport layer can comprise TCP (Transmission Control Protocol, transmission control protocol), UDP (User Datagram Protocol, User Datagram Protoco (UDP)), RTP (Real-Time TransportProtocol, RTP) and RTCP (Real-Time Transport Control Protocol, RTCP Real-time Transport Control Protocol).It provides transfer of data end to end, Data transmission between an application and its far-end peer-entities.It can support a plurality of application simultaneously.Described application and entity need obtain a secondary scene photograph such as the user simply, and this operation of that user is exactly an application, and it is exactly that entity is in work that described camera is taken pictures.Described transport layer is also managed the transmission means of PDU (Protocol Data Unit, protocol Data Unit) in network.According to application demand, can adopt the connection-oriented mechanism that guarantees the PDU transmission, perhaps adopt to provide and transmit the no connection mechanism that PDU arrives the optimum efficiency of final purpose end.
Application layer (Application Layer)
Application layer can comprise MPEG-TS (MPEG-Transport Steam, the MPEG transmitting data stream), Video ES (Video Elementary Stream, the video streamline), Audio ES (AudioElementary Stream, audio frequency streamline), Meta Data (metadata) and RTSP (Real-TimeStreaming Protocol real-time streaming protocol), by adopting RTP/RTCP, UDP/TCP realizes with the program that the IP mode is communicated by letter.Application layer utilizes network and agreement thereof to finish user-defined function, arrives base station or video server as the camera video/audio that sends compression, consults to connect Long-distance Control etc.
In another specific embodiment, the present invention has made up the transmission system of video monitoring data at network, and is concrete:
In transport layer, the MPEG-TS The data Real-time Transport Protocol of packing produces UDP datagram, or adopts rtcp protocol to produce the tcp data newspaper.According to the difference of application scenarios, adopt the different datagram of the corresponding generation of different agreements.
In network layer, datagram is sent to another network from a network by IPv4 or IPv6 agreement.
And data link layer adopts Ethernet, and the deal with data newspaper is connected with logic by the physics of network interface to its destination.
This shows that a kind of video monitoring system based on AVS of the present invention utilizes AVS to carry out the coding of video and audio frequency, has added the metadata that coprocessor generates, and has added synchronous additional information and packing generation MPEG-TS data flow in video flowing.Simultaneously, to concrete the defining of application layer, transport layer, network layer and data link layer, utilized AVS also to support the requirement of video monitoring better.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement etc., all should be included within protection scope of the present invention.
Claims (10)
1. video monitoring system based on AVS, it comprises:
Application layer utilizes network and agreement thereof to finish user-defined function, and described application layer comprises:
Video encoder is used for the coding video data to camera collection, and the coding back generates the video data streamline;
Data processing module is used for the video data of camera collection is handled, and obtains the first required additional information of user, the generator data;
Management control module is used for described video data streamline and metadata packing, and carries out synchronous, unified management control operation.
2. system according to claim 1 is characterized in that, described data processing module is a coprocessor.
3 video monitoring systems according to claim 1 is characterized in that described application layer also comprises audio coder, are used for the voice data of microphone collection is encoded, and the coding back generates the voice data streamline and sends into management control module; Described data processing module is used for the voice data of microphone collection is handled, and obtains the second required additional information of user, and merges the generator data with described first additional information.
4. video monitoring system according to claim 3 is characterized in that, described management control module carries out synchronous, unified management operation to described voice data streamline, video data streamline and metadata synchronization packing.
5. video monitoring system according to claim 4 is characterized in that, described management control module is encrypted or scrambling the packet after packing.
6. according to the described video monitoring system of one of claim 1 to 5, it is characterized in that, described management control module adopts MPEG-TS (MPEG-Transport Stream, mpeg data transport stream) to voice data streamline, video data streamline and metadata packing.
7. system according to claim 1 is characterized in that, described system also comprises:
Data link layer is used to define the frame structure of Ethernet, makes the Frame of link layer can pass through Network Transmission, and process frames of data is connected with logic by the physics of network interface to its destination;
Network layer is used to handle route and source end cut apart the reorganization with destination partition data that send data of network layer data bag from a network to another network; With
Transport layer provides transfer of data end to end, Data transmission between an application and its far-end peer-entities.
8. video monitoring system according to claim 7 is characterized in that, transport layer generates UDP datagram by Real-time Transport Protocol with the MPEG-TS coding.
9. according to claim 7[z3] described video monitoring system, it is characterized in that transport layer generates the tcp data newspaper by rtcp protocol with the MPEG-TS coding.
10. video monitoring system according to claim 7 is characterized in that, described data link layer adopts IPv4 or IPv6 agreement to carry out transfer of data; Described data link layer adopts Ethernet.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827266A (en) * | 2010-04-01 | 2010-09-08 | 公安部第三研究所 | Network video server with video structural description function and method for implementing video analysis description by using same |
| CN101860758A (en) * | 2010-06-04 | 2010-10-13 | 深圳清华大学研究院 | On-site video processing method and device |
| CN102148958A (en) * | 2010-02-08 | 2011-08-10 | 北京中星微电子有限公司 | Method and system for embedding additional monitoring information in analog video data |
| CN102412966A (en) * | 2011-09-14 | 2012-04-11 | 福建伊时代信息科技股份有限公司 | Data management device, data management method, data delivery system and data delivery method |
| CN103313043A (en) * | 2013-07-05 | 2013-09-18 | 广东金泽投资集团有限公司 | Third generation (3G) mobile video monitoring system with radio frequency identification function |
| CN108055507A (en) * | 2017-12-19 | 2018-05-18 | 四川九洲电器集团有限责任公司 | A kind of data group bag method for video analytic system communication |
| CN112235600A (en) * | 2020-09-09 | 2021-01-15 | 北京旷视科技有限公司 | Method, device and system for processing video data and video service request |
| CN116033113A (en) * | 2023-03-27 | 2023-04-28 | 全时云商务服务股份有限公司 | Video conference auxiliary information transmission method and system |
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2008
- 2008-03-07 CN CN 200810101519 patent/CN101252681B/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148958A (en) * | 2010-02-08 | 2011-08-10 | 北京中星微电子有限公司 | Method and system for embedding additional monitoring information in analog video data |
| CN102148958B (en) * | 2010-02-08 | 2016-04-20 | 北京中星微电子有限公司 | A kind of method and system embedding monitoring additional information in analog video data |
| CN101827266A (en) * | 2010-04-01 | 2010-09-08 | 公安部第三研究所 | Network video server with video structural description function and method for implementing video analysis description by using same |
| CN101860758A (en) * | 2010-06-04 | 2010-10-13 | 深圳清华大学研究院 | On-site video processing method and device |
| CN101860758B (en) * | 2010-06-04 | 2012-05-23 | 深圳清华大学研究院 | On-site video processing method and device |
| CN102412966A (en) * | 2011-09-14 | 2012-04-11 | 福建伊时代信息科技股份有限公司 | Data management device, data management method, data delivery system and data delivery method |
| CN103313043A (en) * | 2013-07-05 | 2013-09-18 | 广东金泽投资集团有限公司 | Third generation (3G) mobile video monitoring system with radio frequency identification function |
| CN108055507A (en) * | 2017-12-19 | 2018-05-18 | 四川九洲电器集团有限责任公司 | A kind of data group bag method for video analytic system communication |
| CN112235600A (en) * | 2020-09-09 | 2021-01-15 | 北京旷视科技有限公司 | Method, device and system for processing video data and video service request |
| CN112235600B (en) * | 2020-09-09 | 2022-04-22 | 北京旷视科技有限公司 | Method, device and system for processing video data and video service request |
| CN116033113A (en) * | 2023-03-27 | 2023-04-28 | 全时云商务服务股份有限公司 | Video conference auxiliary information transmission method and system |
| CN116033113B (en) * | 2023-03-27 | 2023-08-11 | 全时云商务服务股份有限公司 | Video conference auxiliary information transmission method and system |
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| CN101252681B (en) | 2010-09-29 |
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