Mobile video monitor system based on 3G channels Yu intelligent terminalTechnical field
The present invention relates to a kind of mobile video monitor system based on 3G channels Yu intelligent terminal.
Background technology
Picture control is enriched with its directly perceived, convenient, information content and is widely used in many occasions.Electronic technology withIn the evolution of the communication technology, the technical merit of frequency image monitoring system directly reflects the technology of different phase electronics and communicationSituation, and picture control technology refer to a new height by the development of computer techno-stress technology.Based on ICP/IP protocolNetwork such as Internet, Intranet it is widely available, with high-speed wideband backbone network build up with each department at a high speed connectEnter developing rapidly for system, the scope of business on IP network also constantly expanding, except traditional information retrieval, Email, remoteCheng Denglu, file transmission etc. be outside business, various multimedia services, such as ecommerce, video conference, remote monitoring, remote teaching,Tele-medicine etc. all illustrates wide application prospect on broadband networks.
Earliest video monitoring system is the video monitoring system of full simulation, also referred to as closed-circuit TV monitoring system.Image is believedBreath uses vision cable, transmits in an analog fashion, but the video monitoring system transmission range of this simulation must not be too far away, Zhi NengyingFor the monitoring of a small range, monitoring image can only typically be checked in control centre.
Existing digital video monitor system can the realtime graphic at monitored scene and the information such as data is accurate, clear,Control room Surveillance center is quickly delivered to, Surveillance center can in real time, directly be understood and grasped by video monitoring systemEach live current practice, the situation that Surveillance center operator on duty directly can occur according to scene is made corresponding anti-Should and process, so as to realize effective management in real time.But in the current actual conditions of checking monitoring point, can only be in Surveillance centerChecked, it is limited by regions.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided one kind can whenever and wherever possible access monitored point, noBy time territory restriction, many people can be realized while the movement based on 3G channels and intelligent terminal for accessing same monitored point is regardedFrequency monitoring system, it realizes the access of various intelligent terminals under identical platform, realizes the unified standard of monitored point videoForm is stored, and the video format for solving the same head end video collecting device of different intelligent terminal-pair supports possess network adaptiveFunction is answered, the stability and transmission speed of video streaming can be improved, can guarantee that data transmission security.
The purpose of the present invention is achieved through the following technical solutions：Mobile video based on 3G channels Yu intelligent terminalMonitoring system, it includes intelligent terminal, Surveillance center and multiple video capture devices, and video capture device is used to gather monitoredThe monitoring information of point, is provided with image codec and image processing module in intelligent terminal, image codec is used for adoptingThe video of collection carries out coded treatment and the video to receiving carries out decoding process, and image processing module is used to carry out figure to imageAs filtering, rim detection, Image Zooming, high-pass filtering, picture smooth treatment, multiple video capture devices and intelligent terminalIt is connected with Surveillance center by communication network respectively.
Surveillance center includes monitoring host computer, multiple video code conversion server and multiple streaming media servers, monitoring host computer, eachVideo code conversion server and each streaming media server are connected respectively to communication network, and each streaming media server passes through communication network respectivelyNetwork connects corresponding video capture device, receives the video of corresponding video capture device, and video code conversion server is usedIn video is carried out into transcoding treatment according to demand.
Described Surveillance center also includes 3G radio network gateways, monitoring host computer, video code conversion server and streaming media serverCommunication network is connected to by 3G radio network gateways respectively.
Described Surveillance center also include load balance scheduler, load balance scheduler respectively with video code conversion serverIt is connected with streaming media server, for being carried out at load balancing to multiple streaming media servers and multiple video code conversion serversReason.
Described Surveillance center also includes display device and warning device, and display device and warning device are led with monitoring respectivelyMachine is connected.
Described intelligent terminal includes one or more combination in PC, smart mobile phone and Intelligent set top box.
Described video capture device is multiple intelligent network cameras.
Described video capture device includes multiple common cameras and video server, and each common camera passes through videoServer is connected with communication network, and video server is used to carry out coded treatment to the vision signal of common camera transmission.
Described video code conversion server includes Video decoding module and video encoding module, and Video decoding module is received and regardedFrequently, and according to the corresponding decoding algorithm of video format Automatic-searching of the video being input into, meanwhile, analyze the coding ginseng of source videoNumber；The input of video encoding module is connected with the output end of Video decoding module, for being analyzed according to Video decoding moduleThe coding parameter for coming and current network condition, set new coding parameter, to the original video number of Video decoding module outputAccording to carrying out re-encoding process.
Network self-adapting module is provided with inside described streaming media server, forwards code check to adapt to net for adjust automaticallyNetwork bandwidth.
The beneficial effects of the invention are as follows：
（1）Realize the access of various intelligent terminals under identical platform, the not exclusively PC of fixed placement, intelligent machine topBox, mobile smart mobile phone, panel computer etc. can access same platform, the ground of any network coverage as monitor terminalSide, can immediately check front end control point, without geographical restrictions, in addition, can realize that multiple intelligent terminals are monitored checks same simultaneouslyOne control point；
（2）By video code conversion server, to the video flowing of the different encapsulation format of each video capture device collection, andThe video flowing of different coding form, carries out unified transcoding, the unified standard form storage of video is realized, in addition, when intelligenceWhen the form of the video flowing selected by terminal does not meet the reference format of Surveillance center's defined, can be by video code conversion server elder generationCarry out treatment to retransmit, the video format for solving the same head end video collecting device of different intelligent terminal-pair is supported, is applicable modelEnclose wide；
（3）Streaming media server possesses the function of network self-adapting, can be forwarded according to real-time network condition adjust automaticallyCode check, intelligence degree is high；
（4）Load balance scheduler is provided with, the load balancing of multiple Streaming Media forwardings and transcoding server can be effectively ensured,Improve the stability and transmission speed of video streaming；
（5）3G radio network gateways are provided with, the security of data transfer can be effectively ensured；
（6）Image processing module is provided with intelligent terminal, the definition of image can be effectively improved, monitor good visual effect.
Brief description of the drawings
Fig. 1 is theory diagram of the invention.
Specific embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited toIt is as described below.
As shown in figure 1, the mobile video monitor system based on 3G channels Yu intelligent terminal, it includes intelligent terminal, monitoringCenter and multiple video capture devices（Video capture device 1, video capture device 2 ... ..., video capture device n）, video adoptsCollection equipment is used to gather the monitoring information of monitored point, and image codec and image processing module are provided with intelligent terminal,Image codec be used for gather video carry out coded treatment and to receive video carry out decoding process, image procossingModule is used to carry out image filtering, rim detection, Image Zooming, high-pass filtering, picture smooth treatment to image, and multiple is regardedFrequency collecting device and intelligent terminal are connected by communication network with Surveillance center respectively.
Surveillance center includes monitoring host computer, 3G radio network gateways, multiple video code conversion servers（Video code conversion server 1, depending onFrequency transcoding server 2 ... ..., video code conversion server n）With multiple streaming media servers（Streaming media server 1, Streaming Media clothesBusiness device 2 ... ..., streaming media server n）, monitoring host computer, each video code conversion server and each streaming media server pass through 3G respectivelyRadio network gateway is connected to communication network, and each streaming media server connects corresponding video acquisition by communication network respectivelyEquipment, receives the video of corresponding video capture device, and such as streaming media server 1 is by communication network and video capture device 1It is connected, receives the video of the collection of video capture device 1.Video code conversion server is used to according to demand carry out at transcoding videoReason.
Described Surveillance center also include load balance scheduler, load balance scheduler respectively with video code conversion serverIt is connected with streaming media server, for being carried out at load balancing to multiple streaming media servers and multiple video code conversion serversReason.
Described Surveillance center also includes display device and warning device, and display device and warning device are led with monitoring respectivelyMachine is connected.Display device can be video wall, it would however also be possible to employ multiple LCD displays, with reference to monitoring host computer, realize that each is monitoredThe remote monitoring of point and display.
Described intelligent terminal includes PC, smart mobile phone, Intelligent flat computer and Intelligent set top box, but is not limited toThis is several.When intelligent terminal is smart mobile phone, moreover it is possible to realize the function of transmitting as soon as shooting, clapped by the built-in camera of smart mobile phoneVideo is taken the photograph, coded treatment is carried out to the video for shooting by internal Video Codec, then carry out by image processing moduleSuch as after filtering, rim detection treatment, monitoring host computer is sent to by communication network, realizes that synchronization monitoring smart mobile phone shotThe video for coming, other intelligent terminals can also be played out the video that smart mobile phone shoots by Surveillance center.
Described video capture device is multiple intelligent network cameras.Intelligent network camera is to melt shooting, video to compile, in the senior picture pick-up device of one, Embedded Web agreement can be directly connected to communication network for code, Wireless transceiver.
Described video capture device can also be each commonly to take the photograph using the combination of multiple common cameras and video serverCamera is connected by video server with communication network, and common camera can be that analog video camera can also be digital cameraMachine, video server is used to carry out coded treatment to the vision signal of common camera transmission, is passed through with certain communication protocolCommunication network is sent to Surveillance center.
Described video code conversion server includes Video decoding module and video encoding module, and Video decoding module is received and regardedFrequently, when the video format of the video of front end input does not meet the video format of systematic unity, Video decoding module is according to inputVideo the corresponding decoding algorithm of video format Automatic-searching, meanwhile, analyze source video coding parameter, including resolution ratio,Frame per second, compression parameters Q, i frame gap gop etc..The input of video encoding module is connected with the output end of Video decoding module, usesAccording to Video decoding module analyze come coding parameter and current network condition, new coding parameter is set, to videoThe original video data of decoder module output carries out re-encoding process.
Network self-adapting module is provided with inside described streaming media server, forwards code check to adapt to net for adjust automaticallyNetwork bandwidth.
Workflow of the invention is as follows：The intelligent terminal that user uses（PC, smart mobile phone, Intelligent flat computer orIntelligent set top box）Login authentication is initiated to Surveillance center by username and password, completes each by the monitoring host computer of Surveillance centerThe certification of intelligent terminal；After certification success, monitoring host computer is by 3G radio network gateways by each control point information pushing to user；UserThe control point for oneself wanting to check is selected by intelligent terminal, and selection information is sent to monitoring master by 3G radio network gatewaysMachine, after monitoring host computer is recognized to the selection information, a suitable streaming media server is pushed to the intelligent terminal；User is directThe video flowing of the control point required for oneself is moved on streaming media server played on intelligent terminal.
When the video flowing selected by user does not meet the reference format of Surveillance center's defined, video code conversion server is automaticVideo flowing is processed, and can be adjusted according to the appropriate size to video flowing of real-time network condition, particularlyWhen network condition is poor, video code conversion server can automatically reduce video quality, while streaming media server can also be adjusted automaticallyWhole transmission speed is meeting the requirement of fluency and real-time.
When the Video coding that each video capture device will be gathered produces different encapsulation format, and different coding formVideo flowing, sends during to streaming media server, and what video code conversion server can be unified to the video flowing of noncanonical format turnsCode, is stored again after being converted into the video flowing of the reference format of Surveillance center's defined.