CN102547228A - High-definition network video monitoring system based on local storage and resolution hierarchical transmission - Google Patents
High-definition network video monitoring system based on local storage and resolution hierarchical transmission Download PDFInfo
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Abstract
The invention discloses a high-definition network video monitoring system based on local storage and resolution hierarchical transmission. The system comprises N video acquisition terminals, a local video storage server and a remote monitoring terminal. A plurality of paths of video images can be monitored; special limitation on the type of a transmission network is avoided; the local video storage server supports long-term high-definition video storage, centrally stores and manages a plurality of paths of video information to facilitate high-definition video extraction and daily maintenance, and supports the ordinary video stream output of various resolutions; and the remote monitoring terminal can call high-definition video information in a certain time bucket of a certain monitoring point from the local video storage server through a remote network, and resolution can reach 720P (1,280*720) and greater.
Description
Technical field
The present invention relates to a kind of network video monitor and control system, relate in particular to a kind of high-definition network video supervisory control system based on this locality storage and resolution hierarchical transmission.
Background technology
Video monitoring system has obtained extensive use so that it is directly perceived, convenient, the information content is abundant in fields such as public security system, telecommunications room, urban transportation, water conservancy system, sub-district public security, has become a part indispensable in people's actual life.Up to the present, video monitoring has mainly experienced three developing stage: analog video monitoring, digital video monitoring and Network Video Surveillance.
Before early 1990s, the analog video supervisory control system has obtained using widely.Yet vision cable of this system can only the transmission of one line analog video signal, and system cost is high, easy care not, very difficult realization remote monitoring on a large scale, and be difficult on the whole each road vision signal controlled.To the mid-90, digital video monitor system has appearred, and it is the analog video signal digitlization, thereby has greatly improved picture quality, has strengthened the function of video monitoring.But because the deficiency of technology such as picture steadiness, remote transmission monitoring makes this system only be applied to the daily monitoring of some specific industry as security product.Get into 21 century, along with development of internet technology, digital video monitor system finally develops into network video monitor and control system.Network video monitor and control system is support with the network, has not only realized the digitlization storage of video information, has also realized the digital spreading of video information.
Chinese invention patent CN02125513 has proposed a kind of network video monitor and control system; This video monitoring system with the wideband digital technical application to field of video monitoring; Analog video signal is carried out after code conversion is digital video bit stream; Carry out the digital video bitstream flow transmission through broadband network, re-use special-purpose decoding software and realize video monitoring on computers.All use a vision cable to carry out transmission manner though this scheme has changed each headend equipment, have wiring less, easy to maintenance, advantage such as monitoring range is wide.But this scheme receives machine performance and network bandwidth limitations through computer network monitoring multi-channel video, has problems such as monitoring image is little, image resolution ratio is low.
To the problem that exists among the Chinese invention patent CN02125513, a Chinese invention patent (application number is 200710177857.0, and open day is 2008.05.21) has proposed a kind of based on network video monitoring system.This system comprises front monitoring front-end, central platform and video wall, and wherein, front monitoring front-end is used to record front end video recording and the front end video recording coding of recording is changed into the medium code stream, the media code after transforming is spread deliver to central platform; Central platform is used to store the medium code stream that front monitoring front-end sends, and with the passage of media code stream distribution to video wall; Video wall is used for changing the media code circulation into analog video signal, and the displaying video monitoring video.But; The central platform that this scheme is introduced has increased the complexity that system realizes; And the transfer of data between front monitoring front-end and the central platform still need take Internet resources, and therefore there is the nervous problem of Network Transmission bandwidth in this scheme, and institute's video resolution of obtaining is still very limited.
Chinese invention patent CN101087409A has proposed a kind of network video monitor and control system based on centralised storage.This system comprises acquisition front end, storage rear end and on-line monitoring end, and acquisition front end is connected through IP network with the on-line monitoring end.Sending store video with clean culture and multicast form respectively with the encoder of acquisition front end in the prior art flows different with the on-line monitoring video flowing; This systematic encoder only needs to send a video flowing to storage rear end and IP network can realize video storage and on-line monitoring, has improved network bandwidth utilance to a certain extent.And video storage adopts the centralised storage scheme in this system, and the multi-channel video information centralized stores that acquisition front end is gathered arrives the storage rear end, and the storage data volume is big, is convenient to extract and regular maintenance.Yet on-line monitoring end and never call the video flowing of storage in the rear end in this scheme, and the on-line monitoring video flowing receives the also impossible real-time Transmission HD video of restriction of Network Transmission bandwidth, also just can't clearly reflect the truth of monitoring scene.Therefore the storage of whole system and transmission plan are still waiting to improve.
Chinese invention patent (application number is 201010281423.7, and open day is 2011.01.05) has proposed the network video monitor and control system based on the resolution hierarchical transmission.This system comprises monitoring acquisition terminal and Surveillance center, and the monitoring acquisition terminal is given Surveillance center with the video that collects through Network Transmission, and the monitoring acquisition terminal comprises high-definition camera, acquisition controlling unit and network access equipment; High-definition camera is gathered HD video information; The acquisition controlling unit carries out the digital compression coding with the HD video information of said high-definition camera collection; Export high definition video steaming and ordinary video stream simultaneously, and export high definition video steaming or ordinary video stream through network access equipment according to control signaling or setting in advance that Surveillance center sends.But; The high definition monitor video of this scheme is stored in the memory device in the video acquisition terminal, so just is not easy to extract all videos information in the memory device, and is particularly more at the video acquisition terminal quantity; And when being placed under high-altitude or the complex environment, this problem is particularly outstanding.Though the Surveillance center in this scheme can receive ordinary video stream or transfer HD video in the section sometime, only support the video flowing output of two kinds of resolution, can't make full use of transmission bandwidth.
Can find out from the above how to solve video storage information that the existing network video monitoring system exists preferably and should not manage the present situation that can not be fully utilized and be still present problem demanding prompt solution with limited Network Transmission bandwidth.
Summary of the invention
The present invention seeks to defective to the prior art existence; What solve that the existing network video monitoring system exists obtains the contradiction between HD video monitoring image and the limited Network Transmission bandwidth and how video information is carried out storing easily and effectively and managing, and proposes a kind ofly to store and the high-definition network video supervisory control system of resolution hierarchical transmission based on this locality.
The present invention adopts following technical scheme for realizing above-mentioned purpose:
The present invention is based on the high-definition network video supervisory control system of local storage and resolution hierarchical transmission; Comprise N video acquisition terminal, local video storage server and remote monitoring terminal; Each video acquisition terminal all comprises high-definition camera, acquisition terminal control unit, local encoder and local network access device, and high-definition camera is accomplished video collecting work; The acquisition terminal control unit is responsible for controlling high-definition camera collection video information and video information is transmitted alternately; Local encoder is responsible for the local video information Compression of gathering to being fit to the video flowing of local network transmission; Choosing of local network access device by the local network decision of being selected for use;
The local video storage server comprises local network access device, acquisition controlling unit, video storaging equipment, local codec and telecommunication network access device, and the local network access device receives the video flowing that local network sends over; Receiver, video information is responsible in the acquisition controlling unit and video information is transmitted alternately; Local codec is encoded to the video flowing that is fit to the telecommunication network transmission according to system requirements with decoding video stream earlier again; Choosing of telecommunication network access device by the telecommunication network decision of being selected for use;
Remote monitoring terminal comprises telecommunication network access device, remote decoder, remote monitoring main frame and video storaging equipment, the video flowing that telecommunication network access device receiving remote network sends; Remote decoder shows after with decoding video stream; The remote monitoring main frame is accomplished on-line monitoring, Long-distance Control and video information and is transmitted alternately; Video storaging equipment store video stream.
Preferably, said local network and telecommunication network can be various types of wired or wireless networks.
The present invention has following beneficial effect:
The multi-channel video picture control is provided; The type of transmission network there is not special restriction; The long HD video storage of local video storage server support; The local video storage server is convenient to extract HD video and regular maintenance with multi-channel video information centralized stores and management; Support the ordinary video stream output of multiple resolution, can effectively utilize the limited higher video information of transmission bandwidth transmission quality; Remote monitoring center can be transferred the HD video information of certain control point in the period from the local video storage server through telecommunication network, resolution can reach 720P (1280 * 720) and more than.
Description of drawings
Fig. 1 is a network HD video supervisory control system structure chart of the present invention; Among the figure → expression HD video information;
expression ordinary video information,
expression control signaling;
Fig. 2 is a network HD video supervisory control system specific embodiment of the present invention;
Fig. 3 is the software flow pattern of network HD video supervisory control system specific embodiment of the present invention.
Fig. 4 is a local video storage server software flow.
Fig. 5 is the remote monitoring terminal software flow.
Embodiment
To combine accompanying drawing and specific embodiment that the network HD video supervisory control system that the present invention is based on local storage and resolution hierarchical transmission is done further explain below.
Fig. 1 is a network HD video supervisory control system structure chart of the present invention, and is as shown in the figure, and native system is made up of video acquisition terminal, local video storage server and remote monitoring terminal three parts.Capital equipment comprises:
1. high-definition camera: the high definition video collecting function of accomplishing a plurality of control points;
2. local video storage server: accomplish the encoding function of HD video storage and multiple ordinary sharpness video, local memory device can adopt disk or disk array;
3. remote monitoring main frame: accomplish functions such as video online monitoring, video storage, Long-distance Control;
4. network: comprise local network and telecommunication network, all can adopt various types of wired or wireless networks;
5. codec: accomplish the codec functions of video, can realize through software or hardware.
The work of multi-path high-definition video collecting is responsible at a plurality of video acquisitions terminal; The definition of each road video can be by the local encoder control at this terminal, and the number at video acquisition terminal is decided according to the bandwidth of selecting for use network and the storage capacity of local video storage server.
The local video storage server deposits the high definition video steaming of local network transmission in the local video memory device; And with the video recompile ordinary sharpness video flowing of different resolution through local codec; Select a kind of video flowing classification output according to the instruction or being provided with of local video storage server of remote monitoring terminal again, send to remote monitoring terminal through the telecommunication network access device again.
Remote monitoring terminal is kept watch on the multi-path monitoring video scene through the remote monitoring main frame; Generally the image of each scene all is common resolution; The user can monitor the various actions of scene class, and the video flowing of all common resolution all can be stored in the long-distance video memory device of remote monitoring terminal.
When the user passes through the large-screen unusual circumstance, but sending controling instruction is selected the higher ordinary video stream of resolution, to improve the monitoring definition;
The user can retrieve for examination certain control point high definition video steaming under the scene of interest in the time period from the local video storage server;
Fig. 2 is a network HD video supervisory control system specific embodiment of the present invention.In the present embodiment, adopt 720p high definition IP network video camera, it comprises modules such as high-definition camera, collection in worksite controller, local encoder.The local video storage server adopts the disk array with SCSI (Small Computer System Interface) interface as memory device, supports coding and decoding video.Remote monitoring terminal adopts large-screen tv wall commonly used.Local network and telecommunication network can adopt various wired or wireless networks.
It is emphasized that for simplicity, is example with a local network 4 tunnel monitoring only in the present embodiment, but monitoring is counted and the local network number never only limits to this in the real system.On the one hand, the interior control point number of supporting of local network is determined by the storage capacity that local network spreads out of ability and local video storage server.For example, if adopt the 100Mbps Ethernet, suppose that video flowing speed is 6Mbps, then support 16 tunnel monitoring on this network theory at most, the number of real system support then is less than 16 the tunnel.On the other hand; If guarded region is too big, the monitoring of a local network support is counted and is not enough to realize all standing, can make up a plurality of separate local networks; Each control point video all can be sent video into the local video storage server process, and all control points can a shared telecommunication network.
When monitoring; 720p high definition IP network video camera obtains the on-the-spot high definition monitor video of monitoring; And be encoded to the video flowing that is fit to the local area network transmission, through the transmission of local area network, the multi-path monitoring video information is pooled to the local video storage server; And through scsi interface with the HD video information stores in the local disk array; Think highly of the video flowing that newly is encoded to the transmission of suitable long-range 3G net through software or hardware compression then, and insert long-range 3G net, be transferred to remote monitoring terminal at last.Remote monitoring terminal can be realized on-line monitoring through large-screen tv wall, and through scsi interface video flowing is deposited in the remote disk array.Generally, the video flowing that is transferred to remote monitoring terminal is the ordinary sharpness video flowing of a certain resolution; And take place when unusual, remote monitoring terminal is given local video memory sending controling instruction, ordinary video stream or even high definition video steaming that exportable resolution is higher.In addition, the HD video of storing in the local disk array transferred and checked to remote monitoring terminal also can through sending instruction.
The software flow pattern of network HD video supervisory control system specific embodiment of the present invention is divided into three parts, respectively like Fig. 3, shown in 4,5.
As shown in Figure 3, video acquisition terminal software flow process comprises:
1. system initialization;
2. begin video acquisition is carried out at scene, a plurality of control point;
3. with the multi-channel video information compressed encoding of high definition IP network camera acquisition;
4. send into the local video storage server through the local network transmission;
As shown in Figure 4, local video storage server software flow comprises:
1. system initialization;
2. receive the HD video information that local network transmits;
3. each road HD video is deposited in the local disk array;
4. detect the video definition buffer status, if the ordinary sharpness video then recompressing the ordinary sharpness video flowing that is encoded to multiple resolution behind the high definition video decoding, selects a kind of video flowing to send into telecommunication network according to control command then; If HD video is then directly sent into telecommunication network;
As shown in Figure 5, the remote monitoring terminal software flow comprises:
1. system initialization;
2. the high definition video steaming of receiving remote network transmission or ordinary video flow;
3. each road video information is decoded respectively, and will deposit in the remote disk array;
4. decoded video is play on large-screen tv wall.When needs adjustment video definition, upgrade the video definition buffer status and send instruction to local video definition register, upgrade local video definition buffer status in time to obtain the video of required definition.
The foregoing description is the preferable possible embodiments of the present invention, is not in order to limiting scope of patent protection of the present invention, and therefore the equivalent structure done of every utilization specification of the present invention and accompanying drawing content changes, and all should be included in protection scope of the present invention.
Claims (2)
1. high-definition network video supervisory control system based on this locality storage and resolution hierarchical transmission; It is characterized in that comprising N video acquisition terminal, local video storage server and remote monitoring terminal; Each video acquisition terminal all comprises high-definition camera, acquisition terminal control unit, local encoder and local network access device, and high-definition camera is accomplished video collecting work; The acquisition terminal control unit is responsible for controlling high-definition camera collection video information and video information is transmitted alternately; Local encoder is responsible for the local video information Compression of gathering to being fit to the video flowing of local network transmission; Choosing of local network access device by the local network decision of being selected for use;
The local video storage server comprises local network access device, acquisition controlling unit, video storaging equipment, local codec and telecommunication network access device, and the local network access device receives the video flowing that local network sends over; Receiver, video information is responsible in the acquisition controlling unit and video information is transmitted alternately; Local codec is encoded to the video flowing that is fit to the telecommunication network transmission according to system requirements with decoding video stream earlier again; Choosing of telecommunication network access device by the telecommunication network decision of being selected for use;
Remote monitoring terminal comprises telecommunication network access device, remote decoder, remote monitoring main frame and video storaging equipment, the video flowing that telecommunication network access device receiving remote network sends; Remote decoder shows after with decoding video stream; The remote monitoring main frame is accomplished on-line monitoring, Long-distance Control and video information and is transmitted alternately; Video storaging equipment store video stream.
2. according to claim 1 described high-definition network video supervisory control system, it is characterized in that said local network and telecommunication network can be various types of wired or wireless networks based on this locality storage and resolution hierarchical transmission.
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| CN103281390A (en) * | 2013-06-06 | 2013-09-04 | 四川艾普视达数码科技有限公司 | Monitoring system for chain stores |
| CN104780347A (en) * | 2015-04-15 | 2015-07-15 | 无锡华海天和信息科技有限公司 | Monitoring data transmission system and realizing method thereof |
| CN105100663A (en) * | 2014-05-15 | 2015-11-25 | 北京同步科技有限公司 | Recording system based on hardware encoders, audio and video processing apparatus, and recording method |
| CN105100829A (en) * | 2015-06-29 | 2015-11-25 | 小米科技有限责任公司 | Method and device for intercepting video content |
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| CN105516682A (en) * | 2016-01-06 | 2016-04-20 | 惠州学院 | Intelligent high definition video monitoring system |
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| CN103281390A (en) * | 2013-06-06 | 2013-09-04 | 四川艾普视达数码科技有限公司 | Monitoring system for chain stores |
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| CN108696720A (en) * | 2018-05-08 | 2018-10-23 | 熊猫电子集团有限公司 | A kind of video scheduling system and method suitable for satellite communication |
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| CN109905665A (en) * | 2019-01-31 | 2019-06-18 | 南京巨鲨显示科技有限公司 | A kind of diagosis system based on 4K codec |
| CN111726584A (en) * | 2020-06-24 | 2020-09-29 | 陈侠 | Video monitoring system |
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Application publication date: 20120704 |