CN103905787B - Straight connection type plug-and-play network video recorder system and realization method - Google Patents
Straight connection type plug-and-play network video recorder system and realization method Download PDFInfo
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Abstract
The invention discloses a straight connection type plug-and-play network video recorder system. The system comprises an image data processing module, a network data exchange module, a display interface, a storage interface, a man-machine exchange interface and a network camera. The invention also provides a realization method for a straight connection type plug-and-play network video recorder system. The advantages are as follows: the connection between a video recorder and a network camera can be realized in a faster and simpler manner, network technological knowledge is unnecessary, the network camera can be connected to a corresponding network port of the video recorder, the video recorder can preview a video acquired by the network camera at a port corresponding to an interface, and plug-and-play in application is realized.
Description
【Technical field】
The present invention relates to protection and monitor field, especially a kind of direct-connected plug and play network video recorder system and realization side
Method.
【Background technology】
In recent years, the developing rapidly of Internet technology, Video Surveillance Industry is also into network times.Network times
Video Surveillance Industry just progressively showing the feature of internet industry.Video Surveillance Industry is more next to monitoring image quality now
Higher, such as image resolution ratio strides forward to high definition gradually.Traditional Analogvideotransmission, can not meet in industry to high Qinghua
Tight demand, the Network Personal Video Recorder therefore based on network application and web camera have in industry occupied certain ground
Position, compared to digital hard disc video recorder（DVR）The analog signal being adopted is transmitted by coaxial cable, the network of Network Personal Video Recorder
Digital data transmission possesses fine definition and the feature of low cost.
Although Network Personal Video Recorder possesses some above advantages, come with some shortcomings simultaneously.Before Network Personal Video Recorder
Section video capture device is web camera（IPCAM）, Network Personal Video Recorder pass through to web camera obtain video data, so
After be saved in local memory device.Network Personal Video Recorder is required to Network Personal Video Recorder and network shooting with docking of web camera
Corresponding network configuration made by machine, and such as manual search finds video camera, manual bound path etc., then could meet video communication
Require.But often need the technical knowledge of networks of correlation during this, and need to have the operating personnel of correlation experience
Can properly complete, for example, solve the problems, such as that subnet mates, I P address collision problem, MAC Address collision problem etc., process is more
Complicated.Meanwhile, due to polytropy and the uncertainty of network environment, the feature of web camera high definition can take greatly in addition
The network bandwidth of amount；If a large amount of web camera access networks use, bandwidth certainly will be exhausted, affect the network of whole LAN
Use, it is desirable to have people's persistence maintenance of professional skill and experience, bring a series of maintenance cost.
【Content of the invention】
Present invention aims to the deficiency that prior art described above exists, provide a kind of direct-connected plug and play
Network Personal Video Recorder system, by being combined with legacy network video recorder using network data exchange module, makes described network data
Network interface physical location Automatic Network Matching video recorder many picture videos display channel position on Switching Module, eliminates biography
The complicated network configuration process needed for docking with web camera of system Network Personal Video Recorder, not only makes multiple stage web camera straight
Connect access network video recorder to use, and achieve the effect of plug and play.
It is a further object to provide a kind of implementation method of direct-connected plug and play network video recorder system.
To achieve these goals, the present invention is realized in：A kind of direct-connected plug and play network video recorder system,
It includes：
Image data processing module, for finding web camera from network and extracting video data, realizes video counts
According to preview, video recording, playback and setting etc.；It is main control module, is to realize present system nucleus module;Wherein, described set
Put including web camera setting, network settings, preview setting, video recording setting and playback setting etc..Such as setting network is taken the photograph
The resolution ratio of camera, code stream, IP address etc..
Network data exchange module, for directly-connected network video camera, and provides respective channel to image data processing module
Number web camera data conversion transmission information；Described data conversion transmission information at least includes MAC Address and its forwards port；Described
Network data exchange module core is one or more pieces network exchanging chip, for example, can be IP175C, IP175D, IP1725
Deng；It is the key modules realizing plug and play.
Display interface, for external-connection displayer, shows the operation interface of this application system, the preview of map network video camera
Image.
Memory interface, for external storage equipment, stores Video data.
Human-computer exchange interface, for connecting mouse, the peripheral equipment such as keyboard, for operating this application system.
Web camera, for gathering video data, and feeds back to described network data exchange module, is to use the system
Apply requisite equipment.One web camera corresponds to an IP address.
Described network data exchange module is provided with some RJ45 network interfaces, and one of RJ45 is defined as WAN mouth, its
Remaining RJ45 is defined as LAN mouth, the LAN mouth sequentially sub-screen on map network video recorder display.LAN mouth is used for access network
Video camera, WAN mouth also can access network video camera for connecting external network.
Described network data exchange module passes through GMII（MII）It is connected with image data processing module and exchange
Data；Wherein GMII（MII）Including a data-interface and a management interface.Data-interface is used for switching network
Network data, management interface is used for monitoring and controlling network data exchange module.Described management interface can be serial management interface
（SMI）Or privately owned management interface, such as IIC, SPI etc..
A kind of implementation method of direct-connected plug and play network video recorder system, its step includes：
Step 1：Image data processing module inquires about network data exchange module current port state；
Step 2：When port status detect insertion event, image data processing module searches for meeting by one or many
Words inquire about the identification information of each port network video camera；
Step 3：Image data processing module extracts data conversion transmission information from network data exchange module；
Step 4：Image data processing module passes through relatively above-mentioned identification information data forwarding information, Automatic Network Matching
The channel number of video camera insertion；
Step 5：Image data processing module receives the video data that web camera is provided, and is shown to display in real time and connects
On mouthful respective channel sub-screen or be stored in the storage mediums such as hard disk.
Further comprising the steps of after step 4：Image data processing module is connected to web camera by IP address, and
Receive the video data that web camera is provided, real-time decoding is shown in screen respective channel to provide user to corresponding net
Network camera video data is supervised, video recording, playback etc..Image data processing module automatically configures the IP ground of web camera
Location, prevents IP address conflict, is then directly set up with web camera by network data exchange module and is connected.
Further comprising the steps of after described step 1：
（1）：Judge whether port status change, if continuing executing with step（2）If, otherwise repeat step 1；
（2）：Determine whether insertion event, if execution step 2, execution step if not（3）；
（3）：If extracting event, the web camera video disconnecting corresponding sub-screen connects, then repeat step 1；
In step 1, the web camera that described port status include being connected to network data exchange module RJ45 port is
Event is still extracted in insertion；Port status can be that the exchanger chip internal mechanism of network data exchange module provides, and also may be used
To provide VLAN according to network data exchange module（Virtual Local Area Network, VLAN）Function is real
Existing.
In described step 2, web camera is realized a kind of search protocol, described search protocol is that a kind of equipment identities are known
Other mechanism, when image data processing module sends the searching request of this search protocol to web camera, this web camera
Reply corresponding identification information.Image data processing module is passed through to send, to LAN, the UDP multicast packets meeting search protocol, looks into
Look for how many web cam device and device identifying information in current network.Described search sessions are when image real time transfer mould
When block sends the request of this search protocol, all web cameras receiving this searching request all can reply identification information.This identification
Information at least includes IP address, MAC Address.The identification information that Network Personal Video Recorder receives can be one or more parts, specifically by receiving
Web camera quantity to searching request determines.
In step 3, image data processing module is extracted data by UDI from network data exchange module and is turned
Photos and sending messages；This data conversion transmission information at least includes MAC Address, forwards port.This port is actual to represent web camera insertion
Channel number；Data conversion transmission information can be that the exchanger chip internal mechanism of network data exchange module is provided it is also possible to root
There is provided VLAN according to network data exchange module（Virtual Local Area Network, VLAN）Functional realiey.
In step 4, described identification information data forwarding information all includes MAC Address；This step can divide following three steps
Complete：
A, image data processing module take out the identification information of a web camera from identification information, with the identification of this part
MAC Address in information is coupling object, mates successively with the MAC Address in data conversion transmission information；
If the MAC Address in the described identification information of B does not have in data conversion transmission information, and the match is successful, repeat step A,
Until identification information is completeer, now think insertion network data exchange module is not that image data processing module can identify
The network equipment, execution step 1；If MAC Address the match is successful execution step C；
C, image data processing module pass through the MAC Address in identification information data forwarding information, and Auto-matching goes out IP
Address corresponding forwarding port, thus obtains the respective channel number of web camera insertion.
The present invention is the new network video recorder based on network technology, compared to traditional Network Personal Video Recorder, more convenient and
The simpler connection realized between video recorder and web camera, need not want technical knowledge of networks, realize web camera and connect
On upper video recorder map network port, the video that video recording function gathers in this web camera of corresponding ports interface preview, realize
Plug and play in application（PnP）.
Compared with prior art, the present invention has following beneficial effect：
1st, direct-connected：Legacy network video recorder only one of which RJ45 interface, the data of the web camera of all passages is all
To be connected on outward switch or router, then this RJ45 interface is connected to by a netting twine and enter DVR；And the present invention
Treatable for Network Personal Video Recorder port number is picked out in network data exchange module the RJ45 interface of respective numbers, for direct
Connect；
2nd, plug and play：Legacy network video recorder needs to find video camera, manual bound path etc. through manual search
Complicated configuration could show on corresponding sub-screen a bit.And these process network video recorder Auto-matchings in the present invention,
It is automatically performed, hand off, plug and play；
3rd, isolation features：Web camera feature is high definition resolution ratio it means that the substantial amounts of network bandwidth；If a large amount of
Web camera accesses office network and uses, and certainly will exhaust bandwidth, thus affecting to handle official business；And the direct-connected plug and play of the present invention
Network Personal Video Recorder new application system integration network data exchange module, has been an individual small computer network, has passed through
Technology of network isolation, Network Personal Video Recorder separately outwardly and inwardly two network environments, inside completes network data exchange, does not account for
Use office network bandwidth.
4th, safeguard simply：Compared to traditional Network Personal Video Recorder, the direct-connected plug and play network video recorder of the present invention is new
The more convenient and simpler connection realized between video recorder and web camera of type application system, need not want network technology to know
Know, foolproof application.Greatly reduce the operation and maintenance cost of Network Personal Video Recorder and web camera；
5th, it is easy to popularize：The direct-connected plug and play network video recorder new application system integration of present invention network
Data exchange module, has been an individual small computer network；Lack the place of network environment at some, be to purchase
Buy and use, remove the trouble that will again lay network from.
【Brief description】
Fig. 1 is a kind of structural representation of direct-connected plug and play network video recorder (NVR) system of the present invention；
A kind of flow chart of the implementation method of direct-connected plug and play network video recorder system of Fig. 2 present invention.
Fig. 3 is a kind of network data exchange module of direct-connected plug and play network video recorder (NVR) system of the present invention
Circuit block diagram.
【Specific embodiment】
For further illustrating the technological means and its decorative effect that the present invention taken, preferred below in conjunction with the present invention
Embodiment extremely accompanying drawing is described in detail.
A kind of direct-connected plug and play network video recorder system, as shown in figure 1, include image data processing module, network
Data exchange module and web camera, described network data exchange module is connected with described image data processing module, described
Web camera is connected with described network data exchange module, described network data exchange module, for directly-connected network video camera,
And the data conversion transmission information of the web camera of corresponding ports is provided to image data processing module；
Image data processing module, for finding web camera from network and extracting video data, realizes video counts
According to preview, video recording, playback and setting etc., it is main control module, is to realize present system nucleus module, this module mainly by
A piece of SOC composition, such as hi3515, hi3521, hi3531 etc.；Wherein, described setting include web camera setting,
Network settings, preview setting, video recording setting and playback setting；For example, the resolution ratio of web camera, code stream, IP ground are set
Location etc.；
Network data exchange module, for directly-connected network video camera, and provides network shooting to image data processing module
The data conversion transmission information of machine；Described data conversion transmission information includes MAC Address and its forwards port numbers；It realizes plug and play
Key modules.As shown in figure 3, described network data exchange module is provided with 5 RJ45 network interfaces, one of RJ45 definition
For WAN mouth, remaining RJ45 is defined as LAN mouth, the LAN mouth sequentially sub-screen on map network video recorder display.LAN mouth is used
Carry out access network video camera, WAN mouth also can access network video camera for connecting external network.Described network data exchange module
Core is a piece of network exchanging chip, for example, can be IP175C, P175D, IP1725 etc.；It passes through GMII
（MII）It is connected with image data processing module, 10Mbits, the network data exchange of 100Mbits, 1000Mbits are provided.Image
Data processing module passes through the management interface of MII or privately owned management interface manages the behavior of network data exchange module.Described friendship
Chip of changing planes is capable of identify that whether RJ45 network interface has netting twine to insert.Described exchanger chip supports MAC address
Table, and the entry contents of MAC address table include MAC Address and its forwarding port or this chip supports base
Divide virtual network function in port.Achieve a kind of plug and play net of four-way with IP175D and hi3515 in the present embodiment
Network video recorder system.
Display interface, for external-connection displayer, shows the operation interface of this application system, the preview of map network video camera
Image.
Memory interface, for external storage equipment, stores Video data.
Human-computer exchange interface, for connecting mouse, the peripheral equipment such as keyboard, for operating this application system.
Web camera, for gathering video data, and feeds back to described network data exchange module, is to use this application
System applies requisite equipment.One web camera corresponds to an IP address.
As can be seen from Figure 3 advantage of the invention is that image data processing module hi3515 passes through GMII
Connect with exchanger chip IP175D, outside picks out 5 RJ45 interfaces, and traditional Network Personal Video Recorder is with a single PHY core
Piece connects, and outside can only pick out a RJ45 interface.
A kind of implementation method of direct-connected plug and play network video recorder system, as shown in Fig. 2 its step includes：
Step 1：Image data processing module inquires about network data exchange module current port state；Described port status bag
Include be connected to network data exchange module RJ45 port web camera be insertion or extract event；Port status can be
The exchanger chip internal mechanism of network data exchange module is provided it is also possible to provide VLAN according to network data exchange module
（Virtual Local Area Network, VLAN）Functional realiey.
Step 2：Judge whether port status change, if continuing executing with step 3, if otherwise repeat step 1；
Whether port status change？It is to continue with execution step 3, no repeat step 1；
Step 3：Determine whether insertion event, if execution step 5, execution step 4 if not；Whether insert thing
Part？It is carried out step:5, no execution step 4；
Step 4：If extracting event, the web camera video disconnecting corresponding sub-screen connects, then repeat step
1；
Step 5：Image data processing module inquires about each port network video camera by one or many search sessions
Identification information；Image data processing module is passed through to send the multicast packets of the UDP meeting search protocol requirement to LAN, finds to work as
Web camera on front network data exchange module corresponding ports；Search protocol is achieved, described search on web camera
Agreement is a kind of equipment identities recognition mechanism, when image data processing module sends searching request to web camera, this net
Corresponding identification information replied by network video camera.Image data processing module is passed through to meet search protocol requirement to LAN transmission
UDP multicast packets, search how many web cam device in current network, and this agreement follows http agreement.Described search sessions
It is that all web cameras receiving this searching request all can return when image data processing module sends the request of this search protocol
Multiple identification information.This identification information at least includes IP address, MAC Address.The identification information that Network Personal Video Recorder receives can be one
Part or many parts, specifically by receive searching request web camera quantity determine.
Step 6：Image data processing module extracts data conversion transmission information from network data exchange module；The group of described module
Chip is become to have learning functionality, when passing through this chip when there being web camera to send data, it can record this web camera MAC
Corresponding forwarding port, data form：
{mac_addr,port_num}.This chip is provided in UDI mode and forwards data at view data
Reason module.Image data processing module is passed through UDI and is extracted data conversion transmission information from network data exchange module；Should
Data conversion transmission information at least includes MAC Address, forwards port.The actual channel number representing web camera insertion in this port；
Data conversion transmission information can be that the exchanger chip internal mechanism of network data exchange module is provided it is also possible to according to network data
Switching Module provides VLAN（Virtual Local Area Network, VLAN）Functional realiey.
Step 7：Image data processing module passes through relatively above-mentioned identification information data forwarding information, Automatic Network Matching
The channel number of video camera insertion；This identification information data forwarding information all includes MAC Address；This step can divide following three steps
Complete：
A, image data processing module take out the identification information of a web camera from identification information, with the identification of this part
MAC Address in information is coupling object, goes to mate successively in data conversion transmission information；
If the MAC Address in the described identification information of B does not have in data conversion transmission information, and the match is successful, repeat step A,
Until identification information is completeer, now think insertion network data exchange module is not that image data processing module can identify
The network equipment, execution step 1；If MAC Address the match is successful execution step C；
C, image data processing module pass through the MAC Address in identification information data forwarding information, and Auto-matching goes out IP
Address corresponding forwarding port, thus obtains the respective channel number of web camera insertion.
Step 8：The IP address that image data processing module automatically configures web camera prevents IP address conflict, Ran Houtong
Cross network data exchange module and directly set up with web camera and be connected；
Step 9：Image data processing module receives the video data that web camera is provided, and is shown to display in real time and connects
On mouth respective channel sub-screen.
The preferred embodiment of the present invention described in detail above is it will be appreciated that the ordinary skill of this area need not be created
The property made work just can make many modifications and variations according to the design of the present invention.Therefore, all technical staff in the art
According to present inventive concept, logic analysis, reasoning or according to the limited available technology of experiment are passed through on prior art basis
Scheme, all should be among protection domain determined by the claims.
Claims (5)
1. a kind of implementation method of direct-connected plug and play network video recorder system, the method includes：
Step 1：Image data processing module inquires about network data exchange module current port state；
Step 2：When port status detect insertion event, image data processing module is looked into by one or many search sessions
Ask the identification information of each port network video camera；
In step 2, web camera is realized a kind of search protocol, described search protocol is a kind of equipment identities recognition mechanism,
When image data processing module sends the searching request of this search protocol to web camera, this web camera is replied corresponding
Identification information；Image data processing module is passed through to send, to LAN, the UDP multicast packets meeting search protocol, searches current net
How many web cam device on network；Described search sessions are when image data processing module sends the request of this search protocol
When, all web cameras receiving this searching request all can reply identification information；This identification information at least include IP address and
MAC Address；
Step 3：Image data processing module extracts data conversion transmission information from network data exchange module；
Step 4：Image data processing module passes through relatively above-mentioned identification information data forwarding information, and Automatic Network Matching images
The channel number that the machine transplanting of rice enters；
Step 5：Image data processing module receives the video data that web camera is provided, and is shown to display interface pair in real time
Answer on passage sub-screen or be stored in the storage mediums such as hard disk.
2., according to the implementation method of a kind of direct-connected plug and play network video recorder system described in claim 1, its feature exists
In further comprising the steps of after step 4：The IP address that image data processing module automatically configures web camera prevents IP ground
Conflicting in location, is then directly set up with web camera by network data exchange module and be connected.
3., according to the implementation method of a kind of direct-connected plug and play network video recorder system described in claim 1, its feature exists
In further comprising the steps of after described step 1：
（1）：Judge whether port status change, if continuing executing with step（2）If, otherwise repeat step 1；
（2）：Determine whether insertion event, if execution step 2, execution step if not（3）；
（3）：If extracting event, the web camera video disconnecting corresponding sub-screen connects, then repeat step 1.
4., according to the implementation method of a kind of direct-connected plug and play network video recorder system described in claim 2, its feature exists
In, in step 3, image data processing module is passed through UDI and extracted data forwarding letter from network data exchange module
Breath；This data conversion transmission information at least includes MAC Address, forwards port.
5., according to the implementation method of a kind of direct-connected plug and play network video recorder system described in claim 2, its feature exists
In, in step 4, this identification information data forwarding information all includes MAC Address；This step divides following three steps to complete：
A, image data processing module take out the identification information of a web camera from identification information, with this part of identification information
In MAC Address be coupling object, go to mate successively in data conversion transmission information；
If the MAC Address in the described identification information of B does not have in data conversion transmission information, and the match is successful, repeat step A, until
Identification information is completeer, and now think insertion network data exchange module is not the network that image data processing module can identify
Equipment, execution step 1；If MAC Address the match is successful execution step C；
C, image data processing module pass through the MAC Address in identification information data forwarding information, and Auto-matching goes out IP address
Corresponding forwarding port, thus obtains the respective channel number of web camera insertion.
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| CN104202548B (en) * | 2014-08-12 | 2017-06-06 | 深圳英飞拓科技股份有限公司 | A kind of method and device of NVR multiple line distance managements |
| CN104410841B (en) * | 2014-12-19 | 2018-04-10 | 深圳市天视通电子科技有限公司 | A kind of connection method and device based on MAC layer |
| CN106817439A (en) * | 2017-02-10 | 2017-06-09 | 武汉卓威视讯科技有限公司 | A kind of method for obtaining MAC Address |
| CN107566788A (en) * | 2017-08-15 | 2018-01-09 | 深圳市天视通电子科技有限公司 | Port and the mapping method and system of Network Personal Video Recorder passage based on interchanger |
| CN108123833A (en) * | 2017-12-15 | 2018-06-05 | 成都盯盯科技有限公司 | The method of automatic recovery configuring file based on LAN |
| CN115242857A (en) * | 2022-07-14 | 2022-10-25 | 杭州萤石软件有限公司 | Network camera access method, network video recorder, electronic equipment and storage medium |
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| CN102843544A (en) * | 2011-06-24 | 2012-12-26 | 毛振刚 | New-generation remote digital image joint control system |
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| KR101586699B1 (en) * | 2010-01-28 | 2016-01-19 | 한화테크윈 주식회사 | A network camera and a system and a method for operating the network cameras |
| CN102348107A (en) * | 2011-10-27 | 2012-02-08 | 北京汉邦高科数字技术股份有限公司 | Method for realizing plug and play of network monitoring video |
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Address after: 510000 Floor 1 and 2, Building 2, West Side of Shanxi Village, Dashi Street, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Jiu'an Intelligent Technology Co.,Ltd. Address before: Floor 1, No. 9, 3rd Road, Hengling Industrial Zone, Tianhe District, Guangzhou City, Guangdong Province, 510630 Patentee before: GUANGZHOU JUAN OPTICAL & ELECTRONICAL TECH JOINT STOCK Co.,Ltd. |