CN101483761A - Intelligent video monitoring system based on complete IP network - Google Patents
Intelligent video monitoring system based on complete IP network Download PDFInfo
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Abstract
An intelligence video monitoring system based on full IP network, composed of a front-end monitoring sub-system, IP network, a monitoring center sub-system and a client sub-system, the front-end monitoring sub-system comprises a plurality of cameras and video servers; the network transmitting sub-system comprises various router, fixed IP of monitoring center and virtual network; the client sub-system comprises a login/register interface, real-time playing and history playing interfaces and a management interface; the monitoring center sub-system comprises a numerical keyboard, a register server, a management server, a forwarding server, a network decoder and a storing center. With communication realized by full IP network and multi-layer management, the monitoring sub-system can provide network video service based on browser/server architecture, which realizes comprehensive non-man network video monitoring platform, capable of carrying out video capture, auto alarming with high speed spherical camera on object entering restricted area in uninterrupted video.
Description
Technical field:
The present invention relates to physical field, relate in particular to the video communication technology, particularly video monitoring technology, concrete is a kind of intelligent video monitoring system based on complete IP network.
Background technology:
In the prior art, supervisory control system is obtained the video image of monitoring scene by video camera, is transferred to client, finishes supervision by the human eye of client, controls the rotation of Pan/Tilt/Zoom camera according to surveillance scenarios by the people again, can target to catch; Or monitoring image recorded a video, obtain information by the video recording of watching video monitoring more afterwards, and the evidence that takes place as incident.This method for supervising needs artificial participation just can finish, so monitoring efficiency is low, can not satisfy detection pursuit movement target, unattended requirement that modern intelligent video monitoring proposes.
Summary of the invention:
The purpose of this invention is to provide a kind of intelligent video monitoring system based on complete IP network, described this intelligent video monitoring system based on complete IP network will solve the technical problem that supervisory control system need manually participate in the prior art, monitoring efficiency is low.
This intelligent video monitoring system based on complete IP network of the present invention is made of shooting unit and IP network, wherein, described shooting unit is arranged in the front end Monitor And Control Subsystem, the shooting unit is made of digital camera and clipping the ball video camera, described front end Monitor And Control Subsystem is made of network video server, be provided with video encoding module in the described network video server, local storage and Network Transmission interface, described video encoding module, local storage is connected with a processor respectively with the Network Transmission interface, the Network Transmission interface is connected with described IP network, described digital camera is connected with described video encoding module by signal cable respectively with the clipping the ball video camera, described processor is analyzed the data that video encoding module produces, and described data are delivered to IP network by the Network Transmission interface, be connected with a monitoring sub in the IP network, described monitoring sub is by management server, registrar, forwarding server, network storage device and network decoder constitute, described network decoder is connected with IP network, described management server, registrar, forwarding server, network storage device is connected with network decoder respectively, be connected with numeric keypad on the management server, the forwarding server stream medium data of automatic network decoder is in the future transmitted to IP network, be connected with a client-end subsystem in the IP network, described client-end subsystem is made of computer, the stream medium data that client-end subsystem is transmitted by built-in browser access forwarding server.
Further, network video server in the front end Monitor And Control Subsystem is by the registrar authentication registration of IP network to monitoring sub, digital camera is taken the video pictures of monitoring scene, video encoding module is to video data encoding, and the storage after will encoding is to local storage, perhaps by the Network Transmission interface, IP network is transferred to monitoring sub, utilize the processor in the front end Monitor And Control Subsystem that the data that video encoding module produces are analyzed, distinguish moving target and judge whether the behavior of target meets the alert if of setting, when alert if satisfies, send alarm signal by IP network to the control center subsystem, according to the position of target at the home court scape, calculate the camera lens moving direction and the distance of clipping the ball video camera, the camera lens of control clipping the ball video camera moves, and the track up target also is saved in the local storage.
Operation principle of the present invention is: front end Monitor And Control Subsystem, IP network, monitoring sub and client-end subsystem constitute the distributed digital video monitoring system, and the front end Monitor And Control Subsystem includes many group video cameras and video server; Network transmitting sub-system comprises IP that routing device, the Surveillance center of various accesses is fixing and the VPN (virtual private network) that constitutes thus; Client-end subsystem comprises the Login Register interface, plays in real time and historical program request interface and administration interface; Monitoring sub comprises numeric keypad, registrar, management server, forwarding server, network decoder and storage center.Surveillance center adopts cascade system, and high level Surveillance center manages low-level Surveillance center, and realizes information sharing and resource backup.Adopt complete IP network to realize communication, multiple levels of management, monitoring sub provides the Internet video service based on browser/server framework, has realized real networked video monitoring platform; Support the multiple network connected mode, as local area network (LAN), enterprise network, Internet, wireless network etc.; Support conversion of front end vision signal and monitored picture round cut, multiple round cut strategy can be set; Long-distance Control, the operator can carry out cradle head control to front end in Surveillance center, various warnings are set, consult historical video recording etc. by monitor terminal; In video monitoring, illegal zone can be set, utilize the clipping the ball video camera that the target that enters illegal zone is carried out feature and take, and report to the police; The local video recording of front end, can be in setting storage life 24 hours non-interrupted picture recordings, can the real time inspection monitoring scene, the historical monitoring video of program request and check the feature video record of the suspicion target of being reported to the police.
The present invention and prior art compare, and its effect is actively with tangible.The present invention utilizes front end Monitor And Control Subsystem, IP network, monitoring sub and client-end subsystem to constitute the distributed digital video monitoring system, adopt complete IP network to realize communication, multiple levels of management, monitoring sub provides the Internet video service based on browser/server framework, realized real networked video monitoring platform, can unattended operation, utilize the clipping the ball video camera that the target that enters illegal zone is carried out feature automatically and take, and report to the police, automatically non-interrupted picture recording.
Description of drawings
Fig. 1 is the structural representation of the intelligent video monitoring system based on complete IP network of the present invention.
Fig. 2 is of the present invention based on the front end Monitor And Control Subsystem structure chart in the intelligent video monitoring system of complete IP network.
Fig. 3 is of the present invention based on the transfer of data schematic diagram in the intelligent video monitoring system of complete IP network.
Fig. 4 is that the target detection based on front end Monitor And Control Subsystem in the intelligent video monitoring system of complete IP network of the present invention is followed the tracks of and alarm flow figure.
Fig. 5 is the Target Tracking System module diagram based on front end Monitor And Control Subsystem in the intelligent video monitoring system of complete IP network of the present invention.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, intelligent video monitoring system based on complete IP network of the present invention is made of shooting unit and IP network, wherein, described shooting unit is arranged in the front end Monitor And Control Subsystem, the shooting unit is made of digital camera and clipping the ball video camera, described front end Monitor And Control Subsystem is made of network video server, be provided with video encoding module in the described network video server, local storage and Network Transmission interface, described video encoding module, local storage is connected with a processor respectively with the Network Transmission interface, the Network Transmission interface is connected with described IP network, described digital camera is connected with described video encoding module by signal cable respectively with the clipping the ball video camera, described processor is analyzed the data that video encoding module produces, and described data are delivered to IP network by the Network Transmission interface, be connected with a monitoring sub in the IP network, described monitoring sub is by management server, registrar, forwarding server, network storage device and network decoder constitute, described network decoder is connected with IP network, described management server, registrar, forwarding server, network storage device is connected with network decoder respectively, be connected with numeric keypad on the management server, the forwarding server stream medium data of automatic network decoder is in the future transmitted to IP network, be connected with a client-end subsystem in the IP network, described client-end subsystem is made of computer, the stream medium data that client-end subsystem is transmitted by built-in browser access forwarding server.
Further, network video server in the front end Monitor And Control Subsystem is by the registrar authentication registration of IP network to monitoring sub, digital camera is taken the video pictures of monitoring scene, video encoding module is to video data encoding, and the storage after will encoding is to local storage, perhaps by the Network Transmission interface, IP network is transferred to monitoring sub, utilize the processor in the front end Monitor And Control Subsystem that the data that video encoding module produces are analyzed, distinguish moving target and judge whether the behavior of target meets the alert if of setting, when alert if satisfies, send alarm signal by IP network to the control center subsystem, according to the position of target at the home court scape, calculate the camera lens moving direction and the distance of clipping the ball video camera, the camera lens of control clipping the ball video camera moves, and the track up target also is saved in the local storage.
Concrete, in a preferred embodiment of the invention, comprised in the described front end Monitor And Control Subsystem: network video server, HD digital video camera, the video camera or the ball machine of the control of band cloud platform, Network Transmission interface.
Wherein, described Network Transmission interface can be made of a network transmitting sub-system, described network transmitting sub-system comprises: the economical adsl router of supporting fire compartment wall and VPN function, the 512KADSL line attachment, be positioned at broadband router monitoring sub, that the support fire compartment wall is connected with the above VPN of multichannel, the fixedly Internet IP address of monitoring sub.The VPN (virtual private network) (VPN) that above equipment and circuit constitute.
Described monitoring sub comprises: numeric keypad, registrar, management server, forwarding server, network decoder, network storage device.
The front end Monitor And Control Subsystem is arranged on the critical junction in the city, key departments, places such as the multiple zone of security condition.Each front end Monitor And Control Subsystem comprises main camera (high definition camera), Pan/Tilt/Zoom camera (the clipping the ball video camera comprises sphere or The Cloud Terrace type) and video server.High definition camera and Pan/Tilt/Zoom camera are installed in adjacent physical location, and its video signal of gathering is transferred in the webserver by video line.
Main camera is used to gather the picture of whole monitoring scene; From the function of video camera is to take the feature video of suspicious object; Video encoding module is carried out digitized processing and compressed encoding to the video image of gathering; Local storage is carried out this locality preservation to the video data of gathering, and the historical program request that can be used for video data is checked; Video analysis and alarm module are by carrying out analyzing and processing to video image, and whether judge has suspicious object in the scene, if suspicious object is arranged, then control from video camera and carry out the feature shooting, and transmit alarm signal to Surveillance center; The Network Transmission interface is used for the transmission of data.
As shown in Figure 4, the workflow of front end Monitor And Control Subsystem is as follows:
Step 1, video server authenticate registration to the registrar of Surveillance center.
Step 2, main camera are taken the monitoring scene video pictures.
Step 3, video data are divided two-way through the coding of coding module, and one the tunnel stores in the local memory device and goes, and one the tunnel as required, is transferred to Surveillance center by the Network Transmission interface.
Step 4, video analysis are handled with alarm module video data are analyzed, and obtain moving target and judge whether the behavior of target meets the alert if of setting by image processing module, then according to setting, confirm suspicious object.
If step 5 has been set to trigger and reported to the police, send alarm signal to Surveillance center.
Step 5, according to the position of suspicious object at the home court scape, calculate the moving direction and the distance of Pan/Tilt/Zoom camera camera lens, moving of control Pan/Tilt/Zoom camera camera lens caught the clear feature picture of suspicious object, and recorded a video, and is saved in the local storage to go.
Alert if described in the step 4 can comprise:
Motor behavior is reported to the police: this condition is meant that in the institute defined area moving target has been violated the warning condition of setting.It is characterized by the zone that a plurality of arbitrary shapes can be set, a plurality of regional locations can be overlapping, is independent of each other.At each zone, can also specify the parameters such as type (people and the vehicles), size, invasion speed, the shortest invasion time and the direction of motion of intrusion target in this zone, all types of parameters can independently be set in each zone, is independent of each other.After the zone was set, the intrusion behavior that only meets specific characteristic just can cause reported to the police and video recording, and other ineligible invasions will be left in the basket.Utilize above function, can in Same Scene, detect the moving target of different characteristic.For example, when vehicle is driven in the wrong direction in detection in a certain scene, can also detect the people who on the pavement, does not walk in this scene simultaneously.
More report from a liner is alert: report to the police when people or the vehicles surmount warning line.The alert pattern of report from a liner allows the user to set the warning line of one or more arbitrary shape more, can also specify the illegal direction (two unidirectional or two-way) of passing through warning line at each bar warning line.When detecting with the fence pattern of passing through, the target of moving in the warning line parallel direction will be left in the basket, and only send warning when target is passed through warning line.
Off Limits condition: a plurality of off-limits zones can be set.Aim to detect and climb up and over the quick configuration modes that behavior provided such as (or passing through) circumference and fence.The fence intrusion model allows the user to set the virtual fence of one or multi-channel arbitrary shape, the length of each virtual fence in road, height and thickness can independently be provided with, and can specify the illegal direction (two unidirectional or two-way) of climbing up and over (or passing through) certain virtual fence in addition.When climbing up and over (or passing through) fence on illegal direction, the invador will trigger warning automatically.This detecting pattern is suitable for the intrusion defense of various circumferences and fence very much, for example private residence district (preventing to enter), prison (preventing to escape from), application scenarios such as (preventing that any direction from passing through), border.
The function of network transmitting sub-system is to handle the transmission of all data.This system adopts Internet/Intranet technology and standard to get network transmission protocol TCP/IP, is characterized in:
A, adaptation big data quantity, the transmission under the multiple IP network environment of heavy load; Realize that high way, stable data transmit: video data all is continuous data flow, and data can not have any disappearance, and data volume is than all big many of any traditional business; B, adopt multithreading list buffer technology: just can provide client as much as possible to connect under limited memory source, each connection simultaneously has independently thread safeguard again, accomplishes that the transfer of data of each connection is not disturbed mutually, has improved the stability of system; The reliability height of c, data:, ensure the continuity and the integrality of packet to each packet of sending automatic numbering all; Data under d, the multiple IP network environment are exchanged visits: for example: the data between wide area network, local area network (LAN) and wireless network are exchanged visits, and support domain name and IP address to visit; E, support multiple network agreement: support multicast, multicast, clean culture etc.
Client-end subsystem adopts the technology of IE ActiveX plug-in unit, can support the structure of browser/server well.Its function is used to browse and controls the far-end video monitoring equipment.It can carry out the login authentication operation, plays in real time and historical order video picture, and the front end Monitor And Control Subsystem is provided with.
Monitoring sub manages whole system, comprises registrar, management server, forwarding server, network decoder, numeric keypad, administrative client and storage center.
Wherein, numeric keypad is mainly used in the user interface that control and management system are provided to the user.
Registrar mainly is that order and the parameter of coordinating interior each unit of platform and front end are transmitted, and mainly finishes following function: the registration of receiving equipment; The real-time status of receiving equipment; The state of management equipment; The warning of management front end video server; Receive the real-time status of client; For client provides Authority Verification, except normal network security means are provided, also realize that by authentication connection and encrypted transmission further network security guarantees.Dispatch real-time video monitoring or from storage server, extract historical videograph according to customer requirement.
Management server belongs to the part of network video monitor and control system central database, is mainly video monitoring system the centralized management function is provided.The resource of management comprises equipment and user etc.Be divided into concrete application module such as purview certification, log management, equipment fault management, warning message management, information inquiry, management server is realized the central database of the various data of client and management end as the core of whole system.For whole system provide initial data preservation, administer and maintain.
Forwarding server is responsible for the forwarding of media stream data; For the front end video monitoring, general upstream bandwidth is very little, and performance is very low.Being not suitable for a large number of users browses simultaneously.The introducing of transmitting is exactly in order to address this problem.Forwarding server is linked into this locality with the front end video earlier, divides then and tasks a large number of users.Because its performance is good and bandwidth is big.So can solve the problem that the large user measures visit greatly.According to the startup trigger condition that configures in advance, concurrent connection number as certain front end, when trigger condition satisfies, it is termination rating image and transmit (broadcasting) to the user frequently in the past, and the user can't perceive the image that he watches to come from front end video server or forwarding server.
Administrative client be used for the configuration management various device, show each equipment running status.Forwarding server (streaming media server) is an important module that embodies characteristics such as " network monitoring centralized management platform " many clients of system, networking, and for the front end video monitoring, general upstream bandwidth is very little, and performance is very low.Being not suitable for a large number of users supervises simultaneously.The good treatment of forwarding server the problem of flow data distribution.Guarantee to have only a connection between control point and the forwarding service, only use a bandwidth, other users are as supervising this road image, all be to carry out transfer of data with forwarding server, bandwidth occupancy be forwarding server and client this be connected, if this is connected with problems such as bandwidth and causes and can not supervise, can not have influence on other users and normally supervise this road image.This server has also been born the program request task of user to historical data.
Network decoder is used for the video data that is transferred to Surveillance center is decoded.
The main function of network storage device is the centralized stores and the inquiry of video recording data.Be stored in particular category according to specific mode.Because the central store server need be preserved the audiovisual information that a large amount of video cameras transmit up, thus the jumbo storage medium of carry generally all wanted, as NAS, SAN etc.In addition, storage center also manages hard disk.
Monitoring sub is supported the management and the transmission means of cascade.In multistage network structure, as the multiple cascading networks mode of bank, sub-department center, row center, city, province row center, data are from up level transmission continuously of subordinate.Its architectural feature is: the quantity at centers at different levels can be selected as required; There is not private line access physically between the Surveillance center at different levels, just by VPN (virtual private network) foundation relationship between superior and subordinate in logic;
As shown in Figure 3: in the present embodiment, each transfer of data flow process is described below:
Start registration:
Step 1, registrar are registered to management server (fixed ip address), and are carried out authentication.
Step 2, network video server, forwarding server and storage server are registered to registrar (fixed ip address) according to original configuration information, registrar carries out authentication to management, by verifying that the back keeps this long connection, and at the corresponding relation of data-base recording ID and IP.
Administrative client signs in to management server, provides administration interface to the keeper, and carries out authentication.
Numeric keypad signs in to management server, and carries out authentication.
The IE client is registered to registrar, and carries out authentication.
Registrar disposes according to original default, to the registration of higher level's registrar, and carries out authentication.
Send the request of reading configuration information to registrar by network video server, forwarding server and storage server after the authentication.
Registrar reads configuration information from management server, and sends back to corresponding network video server, forwarding server and storage server.
Administrative client has been revised configuration information, is transmitted to corresponding network video server, forwarding server and storage server by registrar.
Numeric keypad or networking client send control information to management server, and management server sends to registrar, and registrar is transmitted control command and given corresponding network video server, forwarding server and storage server.
IE client transmitting control commands is given registrar, and registrar sends to management server to control information, and management server selects corresponding registrar device to transmit control information.
Higher level's registrar sends to subordinate's registrar to control information, and subordinate's registrar is issued management server to order, and management server is selected corresponding registrar, transmits control information.
The warning message of network video server, forwarding server and storage server sends to registrar.
Registrar is transmitted to management server to warning message.
Management server is issued administrative client to warning message.
Forwarding server is according to the order of registrar, initiatively connect network video server, network video server sends authentication information to registrar, and registrar authenticates to management server, after by authentication, begin to receive the data tones video data stream of network video server.
Forwarding server initiatively connects storage server, and storage server connects to the registrar authentication this, after by authentication, receives data, and storage hard disk or reading data flow from storage server.
Forwarding server initiatively connects NDS, and NDS connects to the registrar authentication this, and after authentication was passed through, NDS received data, and decoding.
Forwarding server initiatively connects the IE client, sends data flow.
Forwarding server initiatively connects higher level's forwarding server, and higher level's forwarding server receives the data flow of subordinate after carrying out authentication, and it is transmitted to corresponding module.
Forwarding server initiatively connects the rear end (administrative client, numeric keypad or IE/Client end) that needs intercommunication according to order, and connected equipment is done authentication to initiatively connecting.
Forwarding server initiatively connects the intercommunication front end, and the intercommunication front end is done authentication.
The rear end that needs intercommunication is sent to front end to microphone data compression back by forwarding server, and from the microphone data of forwarding server receiving front-end, and decoding is play.
Network video server is from the microphone packed data of forwarding server reception rear end, and decoding is play, and after the microphone data of oneself compression, sends to forwarding module simultaneously.
A connected side, connection request is to external world done authentication.
Connect after the foundation, the link of control command keeps long and connects, and initiatively a side of initiation order keeps connection (send Hello every a period of time, receive ACK).
Data link can connect and disconnect as required.
All orders and data, the connection of all passing through after authenticating sends.
Adopt unified TCP pattern to come transmission command and data.
The port of communication can dispose.
As shown in Figure 4, among the present invention, the method for pursuit movement target is:
Step 1, utilize the first frame initialization background model earlier, each frame pin that order is read utilizes the method for background subtraction to cut apart the moving region then, utilizes the background area update background module at last.
Step 2, after obtaining the moving region, as prerequisite, it is cut apart according to the connectivity pair of moving region, obtains the zone of a plurality of connections, gives up the zone of area size less than certain threshold value, remaining areas is exactly a plurality of moving targets that will obtain.
Step 3, a plurality of moving targets are compared with the moving target that had before marked one by one, determine whether to entering the fresh target of scene.If fresh target then carries out record to it, preserve its label, size, current location.If there has been the target of record then to write down its motion path, estimate its direction of motion.Carry out reprocessing at last, motion path is carried out smoothing processing.
Step 4, to each moving target, check whether it has triggered predefined alarm rule, if triggered alarm rule, then transmit alarm signal according to setting to Surveillance center, start feature track up module simultaneously, according to the position of suspicious object in scene, moving lens carries out the high definition feature to suspicious object and takes by the Pan/Tilt/Zoom camera control module.
Step 5, the state of moving target in the record is carried out reprocessing and renewal according to previous calculating.
The described feature track up of step 4 module, can make video camera that self The Cloud Terrace and zoom lens are carried out autonomous PTZ driving, and control Pan/Tilt/Zoom camera automatically carry out comprehensive rotation of The Cloud Terrace and lens zoom, carry out visually oriented from motion tracking at blocked moving target, to guarantee that tracking target continues to appear at camera lens central authorities to amplify the feature picture, the user can see information more clearly like this, can also be used for collecting evidence simultaneously afterwards.Feature track up module has remedied the narrow shortcoming of fixed cameras monitoring visual field, is the perfect essential function of safety monitoring system
As shown in Figure 5, in the present embodiment, the motion target tracking system comprises 5 modules:
A, fore/background detection module: each pixel is carried out preceding background segment.
B, target enter detection module: the result of background detection module detects the target that enters scene as input before using.
C, target tracking module: the result who uses target to enter detection module comes initialization and follows the tracks of each fresh target.
D, movement locus generation module: record is carried out in the position of all targets in each time.
E, movement locus post-processing module: the result to the movement locus generation module carries out smoothing processing.
Claims (2)
1. intelligent video monitoring system based on complete IP network, constitute by shooting unit and IP network, it is characterized in that: described shooting unit is arranged in the front end Monitor And Control Subsystem, the shooting unit is made of digital camera and clipping the ball video camera, described front end Monitor And Control Subsystem is made of network video server, be provided with video encoding module in the described network video server, local storage and Network Transmission interface, described video encoding module, local storage is connected with a processor respectively with the Network Transmission interface, the Network Transmission interface is connected with described IP network, described digital camera is connected with described video encoding module by signal cable respectively with the clipping the ball video camera, described processor is analyzed the data that video encoding module produces, and described data are delivered to IP network by the Network Transmission interface, be connected with a monitoring sub in the IP network, described monitoring sub is by management server, registrar, forwarding server, network storage device and network decoder constitute, described network decoder is connected with IP network, described management server, registrar, forwarding server, network storage device is connected with network decoder respectively, be connected with numeric keypad on the management server, the forwarding server stream medium data of automatic network decoder is in the future transmitted to IP network, be connected with a client-end subsystem in the IP network, described client-end subsystem is made of computer, the stream medium data that client-end subsystem is transmitted by built-in browser access forwarding server.
2. the intelligent video monitoring system based on complete IP network as claimed in claim 1, it is characterized in that: the network video server in the front end Monitor And Control Subsystem is by the registrar authentication registration of IP network to monitoring sub, digital camera is taken the video pictures of monitoring scene, video encoding module is to video data encoding, and the storage after will encoding is to local storage, perhaps by the Network Transmission interface, IP network is transferred to monitoring sub, utilize the processor in the front end Monitor And Control Subsystem that the data that video encoding module produces are analyzed, distinguish moving target and judge whether the behavior of target meets the alert if of setting, when alert if satisfies, send alarm signal by IP network to the control center subsystem, according to the position of target at the home court scape, calculate the camera lens moving direction and the distance of clipping the ball video camera, the camera lens of control clipping the ball video camera moves, and the track up target also is saved in the local storage.
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