CN107979568A - A kind of video surveillance applications system - Google Patents
A kind of video surveillance applications system Download PDFInfo
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- CN107979568A CN107979568A CN201610924023.0A CN201610924023A CN107979568A CN 107979568 A CN107979568 A CN 107979568A CN 201610924023 A CN201610924023 A CN 201610924023A CN 107979568 A CN107979568 A CN 107979568A
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- server
- data
- embedded
- video surveillance
- surveillance applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a kind of video surveillance applications system, composition includes data acquisition unit (1), integrates the embedded server-side (2) of Web server, LAN PC machine (3), router (4), fire wall (5), internet (6), smart mobile phone (7), outer net computer (8), wherein：Data acquisition unit (1) passes through wired or be wirelessly connected to server-side (2), data are transmitted to server-side (2) and receive order, server-side (2) is connected to router (4), it is connected by fire wall (5) with internet (6), system is accessed using the browser on LAN PC machine (3), outer net computer (8) or smart mobile phone (7).Since this video surveillance applications system is using networked data transmission, embedded web server is integrated to realize complete B/S frameworks, while can provide reliable and stable monitoring service, strengthening system flexibility, reduces system complexity and working service cost.
Description
Technical field
The present invention relates to field of video monitoring, more particularly to a kind of video monitoring framework based on embedded web server.
Background technology
Video monitoring is the scientific and technological product being increasingly enhanced with people's awareness of safety, and Computer Image Processing field
Advanced subject.The analog video monitoring of early stage is gradually substituted by digital video monitor.Digital video monitor combines
Computer application, based on Digital Video Processing technology, integrated data compression, sensor technology, intelligent control technology etc.,
While meeting basic monitoring demand, picture quality and transmission range are substantially increased.Conventional digital video monitoring is based on PC machine
With digital monitor terminal, it is advantageous that termination function is powerful, but cumbersome, wiring installation amount is big, and software opening is not high,
Volume is difficult to control.
With the development of modern communication technology, the Web technologies based on TCP/IP communication agreement have obtained extremely wide answer
With.Many communication equipment, control device etc. all realize built-in embedded web server, pass through equipment using browser
Just energy access equipment, realization configure equipment operating parameter, check the functions such as equipment running status network interface.Due to embedded system
Highly integrated, the characteristic that information processing capability is powerful of system, and the opening of Web system and good interactive, Web and embedding
The combination of embedded system has become the new trend of Electronic Development of Information Industry.The combination of everyday devices and network technology also causes
Device intelligence degree greatly improves.
For a series of problems existing for digital video monitoring, new Network Video Surveillance is with reference to conventional digital video
On the basis of monitoring advantage, embedded system and computer network, the digitlization of responsive message society, networking and intelligence are combined
The trend of change, is increasingly used in the work such as traffic monitoring, smart home, bank safety monitoring, live broadcast, life neck
Domain, and as technology development and network are popularized, the cost of monitoring system is substantially reduced.
The content of the invention
The video surveillance applications system that the present invention designs belongs to digitalized network monitoring system, especially with complete B/S
Framework, strengthens data synchronization, and system structure is flexible, easy to use, and deployment cost and upgrade cost are low, and practicality is high.
Technical problem solved by the invention, which is to provide, a kind of stablizes flexible, the easy to maintain and monitoring system solution that uses
Certainly scheme.
The technical solution for realizing the object of the invention is：
1) a kind of video surveillance applications system, composition include data acquisition unit 1, integrate the embedded clothes of Web server
Business end 2, LAN PC machine 3, router 4, fire wall 5, internet 6, smart mobile phone 7, outer net computer 8, wherein：Data acquisition
Unit 1 transmits data to server-side 2 and receives order, server-side 2 connects by wired or be wirelessly connected to server-side 2
Router 4 is connected to, is connected by fire wall 5 with internet 6, system uses LAN PC machine 3, outer net computer 8 or intelligent hand
Browser on machine 7 accesses.
2) data acquisition unit 1 is responsible for data using the USB interface or wireless monitor camera, video for supporting UVC forms
Acquisition process and emergent storage；The embedded server-side 2 incorporates embedded web server, is responsible for terminal management, data are deposited
Storage, data transfer, Web request response, order are received and forwarded.
3) LAN PC machine 3, outer net computer 8, smart mobile phone 7 access system by dynamic territory analyzing.
4) embedded server-side 2 includes built-in system application and embedded web server.
5) data store, including collecting device storage and server storage.
6) embedded web server is based on embedded server Boa customizations of increasing income.
Compared with prior art, the present invention its remarkable advantage：
(1) system structure is simple, of low cost, and subsequent upgrade is convenient.Terminal can select wired or wireless with server
Connection mode, communicates by legacy network, it is not necessary to extra wiring.
(2) complete B/S frameworks, server-side integrate embedded web server, exempt client, realize high expansion.
(3) optimize data storage method, covered using passive type, the active method of synchronization, ensure monitoring data integrality.
(4) support internet access, realize remote monitoring.
(5) mobile terminal application scenarios especially are considered, has carried out page layout optimization for different platform interaction demand, ensure that
Good interactive experience.The user agent (UA) of Web request has been judged to return to the different pages.
Since this video surveillance applications system is using networked data transmission, embedded web server is incorporated to realize
Complete B/S frameworks, therefore while can provide reliable and stable monitoring service, enhance system flexibility, reduce system
Complexity and working service cost, the optimization for different platform substantially increase user experience.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 system architecture schematic diagrams
Fig. 2 terminals are connected with server establishes logic diagram
Fig. 3 terminal datas gather and transmitting procedure block diagram
Fig. 4 Web request respective logic block diagrams
In figure：1 is data collection station, and 2 is integrate the Video service end of embedded web server, and 3 be PC in LAN
Machine, 4 be router, and 5 be fire wall, and 6 be internet, and 7 be smart mobile phone, and 8 be outer net PC machine.
Embodiment
1. monitor application system overall architecture
Video monitoring is developed so far, and experienced simulated monitoring system, digital video monitor system to Network Video Surveillance
The three phases of system.That widelys popularize at present belongs to network video monitor and control system, its core is network video server.With
The development of computer technology and embedded technology, compact, performance stablize based on Embedded network video monitor and control system
Get the attention, its core is embedded network video server.
Embedded network video surveillance software configuration includes two kinds of C/S, B/S.C/S refers to client terminal/server structure, client
End can handle many work, and response speed is very fast；B/S refers to browser/server structure, is sent out with Internet technologies
A kind of improved structure that exhibition is got up, its groundwork logic realize that this structure can reduce FTP client FTP burden in server,
Reduce maintenance cost and upgrade cost.Intelligent video monitoring system based on embedded web server uses B/S structures.
Video server main modular includes：Video acquisition module, video compressing module, core processing module are different
Combination can realize different hardware structures.
Video monitoring equipment is typically in a LAN, but in order to realize remote monitoring, general video monitoring system
It is required for realizing extranet access interior video server.In order to solve the problems, such as dynamic IP, using dynamic domain name server.Depending on
Frequently, data flow, network data transmission technology etc. ensure that the effect of remote data transmission.Video compression technology is Internet video prison
One of key technology of control system, other further include network transmission, image procossing, interprocess communication etc..
In order to realize flexibly simple and reliable video monitoring system, the digitlization net of the complete B/S frameworks of use of the invention
Network monitoring scheme, design system overall structure is as shown in Figure 1.
Data collection station 1 (supports the USB free drives camera of UVC video formats or the camera of support wireless connection),
The Video service end 2 of embedded web server is integrated, PC machine 3 (general performance) in LAN, router 4, fire wall 5, interconnection
Net 6, smart mobile phone 7 (mobile handheld terminal for supporting browser), outer net PC machine 8 (general performance).
The capital equipment of use：Support UVC video formats USB free drives camera or support wireless connection camera,
Freescale i.MX6DuaLite processors, integrate multi-functional HD video engines, general router, general storage medium such as SD
Card.
System equipment is in same LAN, and system is accessed is visited by Intranet device navigator or outer net terminal browser
Ask.
In order to ensure system stability, as shown in Figure 2, terminal is with server connection procedure：
1) server is found in acquisition terminal start in the form of broadcasting, and broadcasted content includes the system shape of acquisition terminal
The information such as state, IP address；
2) after server listens to broadcast, the legitimacy of end message is judged, including whether normal, address is the SOT state of termination
It is no legal etc.；
3) server authentication is not by returning to refusal information, terminal notifying information and ending request then；
4) server authentication waits terminal connection by then returning to server ip, port information；
5) terminal Connection Service device, server addition end message, terminal start the collection and transmission of data, and server is opened
Begin to receive, store data.
Find out from above-mentioned steps, this monitoring system individual terminal problem does not influence the normal operation of whole system, and system is steady
It is qualitative good.
2. data acquisition plan
In order to accelerate acquisition speed, memory mapping mode is taken first and carries out terminal device digital independent.Memory
Physical memory addresses are mapped to the address space of process by mapping, allow program directly to use the address space of input and output, process
Access to file is equivalent to the access directly to memory.Its operating process includes：Access the pointer of MapViewOfFile, lack
Page is abnormal, file system reads file, system buffer.Compared to General System I/O operation, the mistake for replicating duplicate of the document is saved
Journey.
Secondly, the hardware platform for integrating video processing engine is chosen, hardware encoding is carried out by coprocessor, plays at the same time
Chip multi-core advantage, using parallel processing.
Finally in encoding and decoding agreement, selection is suitable for each video field, there is provided all kinds of new features, high code-rate
H.264/AVC agreement.
3. data transmission scheme
The same of data is continuously transmitted and transmits using what Network Transmitting scheme problem to be solved essentially consisted in data
Walk sex chromosome mosaicism.Transport protocol is based on TCP/IP.Checked in view of monitoring system real-time, it is necessary to using stream media technology into line number
According to transmission.Main transport protocol includes：RTP (real-time transport protocol), RSVP (Resource Reservation Protocol), RTCP (are passed in real time
Transport control protocol discuss), RTSP (real-time streaming protocol).
Wherein RTP can be transmitted by Data Transport Protocols such as UDP, TCP and ATM, be mainly responsible for processing it is one-to-one,
One-to-many multi-medium data streaming, there is provided the temporal information and Synchronization Control of data stream transmitting.The main function of RTCP
It is for cooperating together with RTP, browses control and web impact factor with solve the problems, such as data transfer, their cooperation makes
With the efficiency of transmission that can improve data to a certain extent, so this solution can become online real-time Data Transmission
Major way.
4. data storage scheme
In order to realize the integrality of video monitoring system data, the present invention devises a kind of passive type and covers, is active same
The data storage method of step, with reference to attached drawing 3, illustrates that the data storage procedure of the system is as follows：
1) terminal is attempted to establish with server and connected；
2) after establishing connection, data collection task is started；
3) network state is judged；
4) network state is bad, carries out the trial of data sending, while stores data into local storage unit, storage mode
To select to be synchronized in the data of server earlier, data start to cover；
5) network state is good, the connection recovered again if network state, and first and server carries out data synchronization, will be same
Step finishes data and is marked in being locally stored, while sends new data to server；Otherwise new data is directly transmitted to server
6) judge whether to be successfully transmitted, then carry out local backup not successfully, wait to be synchronized；
7) step 2 is returned to.
This collection storage scheme carries out data backup according to network state, does not have direct delete operation in backup procedure,
Using passive type data cover mode, under limited memory capacity, ensureing legacy data, there are copy, enhancing system for a long time as far as possible
The data stability for entirety of uniting.
3. video server designs
Video server needs management terminal, and receiving terminal data, respective handling is carried out according to order, while to be responded
Web request.
Complex task such as management terminal, receiving terminal data, data processing etc. use normal method, and profit is shown a C language
System application is realized.
With the development of the lifting of embedded system performance, and terminal network, it is embedded system to start to occur some
The Web server of customization, this kind of compact brief introduction of server, takes up less resources, it is possible to achieve basic Web server function, is.
Using Web server in addition to laying the first stone to realize complete B/S frameworks, some advantages are also brought, such as：Traditional test and control
System is converted into network test and control, standard criterion are unified, and the high exploitation of equipment interoperability can quick left-hand seat.The system is used and increased income
Embedded server BOA, it is stronger that it takes 1700kb or so virtual memory, 60kb or so flash spaces, performance.
In order to realize complete B/S frameworks, solve the problems, such as following two.
First, the also unsuitable complication system that carries out applies handled work, therefore the system service to Web server at present
Device follows CGI (Common Gateway Interface, CGI(Common gateway interface)) specification when building, and realizes Web server with being
The interaction of system application, plays respective strong point.
Secondly, under B/S frameworks, client is based on web browser.In order to strengthen user experience, refer to the attached drawing 4, according to
The user agent (UA) of Web request, distinguishes request and comes from PC platforms or mobile platform, after request is disposed, returns
It is adapted to the page of this platform, accomplishes more preferable interactive experience.Step is as follows：
1) browser sends Web request；
2) server receives request, analysis request content；
3) server calls the system application of response to be handled according to request content；
4) after being disposed, UA of the server according to request, returns to the corresponding mobile terminal page or PC end pages face.
4. system integrally realizes step
1) system is connected, mainly acquisition terminal is connected and server, server is connected by router with fire wall
Internet；
2) server and terminal are started, terminal broadcast is reached the standard grade request, server detection IP and port, and completion dynamic domain name is reflected
Penetrate, start automatic detection terminal；
3) terminal starts data acquisition, and server starts data receiver processing, waits Web request；
4) by LAN or outer net, given domain name is utilized, you can proceed by access.
Claims (6)
1. a kind of video surveillance applications system, composition includes data acquisition unit (1), integrates the embedded service of Web server
Hold (2), LAN PC machine (3), router (4), fire wall (5), internet (6), smart mobile phone (7), outer net computer (8),
It is characterized in that：Data acquisition unit (1) is transmitted by wired or be wirelessly connected to server-side (2) to server-side (2)
Data simultaneously receive order, and server-side (2) is connected to router (4), are connected by fire wall (5) with internet (6), and system uses
Browser on LAN PC machine (3), outer net computer (8) or smart mobile phone (7) accesses.
2. video surveillance applications system as claimed in claim 1, it is characterised in that：The data acquisition unit (1) is using branch
The USB interface or wireless monitor camera of UVC forms are held, video is responsible for data acquisition process and emergent storage；It is described embedded
Server-side (2) incorporates embedded web server, is responsible for terminal management, data storage, data transfer, Web request response, life
Order receives and forwarding.
3. video surveillance applications system as claimed in claim 1, it is characterised in that：The LAN PC machine (3), outer net calculate
Machine (8), smart mobile phone (7) access system by dynamic territory analyzing.
4. video surveillance applications system as claimed in claim 1, it is characterised in that：The embedded server-side (2) includes interior
Put system application and embedded web server.
5. video surveillance applications system as claimed in claim 2, it is characterised in that：The data storage, including collecting device
Storage and server storage.
6. the video surveillance applications system as claimed in claim 2, it is characterised in that：The embedded web server
Based on embedded server Boa customizations of increasing income.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610924023.0A CN107979568A (en) | 2016-10-24 | 2016-10-24 | A kind of video surveillance applications system |
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| CN201610924023.0A CN107979568A (en) | 2016-10-24 | 2016-10-24 | A kind of video surveillance applications system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108881844A (en) * | 2018-07-06 | 2018-11-23 | 杭州涂鸦信息技术有限公司 | A kind of local area network video transmission method based on Amazon Echo Show |
| CN110765879A (en) * | 2019-09-24 | 2020-02-07 | 上海交通大学 | Real-time video analysis system and method based on B/S architecture |
| CN111031094A (en) * | 2019-11-06 | 2020-04-17 | 远景智能国际私人投资有限公司 | Data transmission method, device, equipment and storage medium in IoT system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030041329A1 (en) * | 2001-08-24 | 2003-02-27 | Kevin Bassett | Automobile camera system |
| US20060053459A1 (en) * | 1999-10-08 | 2006-03-09 | Axcess, Inc. | Networked digital security system and methods |
| CN101123540A (en) * | 2007-08-21 | 2008-02-13 | 广东志成冠军集团有限公司 | A monitoring method and system based on heterogeneous network |
| CN201160304Y (en) * | 2007-12-27 | 2008-12-03 | 广东亿迅科技有限公司 | Commercial-scale digital remote network video monitor system |
| CN102148964A (en) * | 2011-04-14 | 2011-08-10 | 杭州卓沃电子商务有限公司 | Three-generation (3G) mobile internet video monitoring system |
| CN104052968A (en) * | 2014-06-05 | 2014-09-17 | 东莞中山大学研究院 | Long-distance video supervisory system based on home gateway |
| CN105306900A (en) * | 2015-10-28 | 2016-02-03 | 贵州省邮电规划设计院有限公司 | Intelligent scheduling high definition integrated networking video monitoring system based on cloud computing |
-
2016
- 2016-10-24 CN CN201610924023.0A patent/CN107979568A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060053459A1 (en) * | 1999-10-08 | 2006-03-09 | Axcess, Inc. | Networked digital security system and methods |
| US20030041329A1 (en) * | 2001-08-24 | 2003-02-27 | Kevin Bassett | Automobile camera system |
| CN101123540A (en) * | 2007-08-21 | 2008-02-13 | 广东志成冠军集团有限公司 | A monitoring method and system based on heterogeneous network |
| CN201160304Y (en) * | 2007-12-27 | 2008-12-03 | 广东亿迅科技有限公司 | Commercial-scale digital remote network video monitor system |
| CN102148964A (en) * | 2011-04-14 | 2011-08-10 | 杭州卓沃电子商务有限公司 | Three-generation (3G) mobile internet video monitoring system |
| CN104052968A (en) * | 2014-06-05 | 2014-09-17 | 东莞中山大学研究院 | Long-distance video supervisory system based on home gateway |
| CN105306900A (en) * | 2015-10-28 | 2016-02-03 | 贵州省邮电规划设计院有限公司 | Intelligent scheduling high definition integrated networking video monitoring system based on cloud computing |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108881844A (en) * | 2018-07-06 | 2018-11-23 | 杭州涂鸦信息技术有限公司 | A kind of local area network video transmission method based on Amazon Echo Show |
| CN108881844B (en) * | 2018-07-06 | 2021-06-22 | 杭州涂鸦信息技术有限公司 | Local area network video transmission method |
| CN110765879A (en) * | 2019-09-24 | 2020-02-07 | 上海交通大学 | Real-time video analysis system and method based on B/S architecture |
| CN110765879B (en) * | 2019-09-24 | 2022-05-27 | 上海交通大学 | Real-time video analysis system and method based on B/S architecture |
| CN111031094A (en) * | 2019-11-06 | 2020-04-17 | 远景智能国际私人投资有限公司 | Data transmission method, device, equipment and storage medium in IoT system |
| CN111031094B (en) * | 2019-11-06 | 2022-07-12 | 远景智能国际私人投资有限公司 | Data transmission method, device, equipment and storage medium in IoT system |
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Application publication date: 20180501 |