CN201657204U

CN201657204U - System for realizing network video monitoring off internet platform

Info

Publication number: CN201657204U
Application number: CN2010200027139U
Authority: CN
Inventors: 崔新伟; 杨林军; 陈荻
Original assignee: VISIONDIGI (SHANGHAI) TECHNOLOGY Co Ltd
Current assignee: VISIONDIGI (SHANGHAI) TECHNOLOGY Co Ltd
Priority date: 2010-01-14
Filing date: 2010-01-14
Publication date: 2010-11-24
Anticipated expiration: 2020-01-14

Abstract

The utility model provides a system for realizing network video monitoring off an internet platform. The system comprises a plurality of user terminals all connected to an internet, a video monitoring terminal, a DDNS server and a network connection device. The video monitoring terminal is connected with the DDNS server through a local area network in a network manner; and further the video monitoring terminal is connected with the internet through a network connecting device. The system can lead users to simply access the video monitoring terminal through the internet, and is convenient and is lower in cost.

Description

Realize the system of the Network Video Surveillance under the internet platform

Technical field

The present invention relates to field of video monitoring, be specifically related to a kind of system based on the Network Video Surveillance under the internet platform.

Background technology

Nowadays the application at security protection industry Network Video Surveillance is very extensive, and progressively promotes the development of Network Video Surveillance, and video monitoring is owing to its real-time and performance directly perceived, and the effect of being played in security protection is also increasing.

But traditional Network Video Surveillance is mostly based on intra-company's local area network (LAN), the scope of video monitoring also all is confined to in-house network, even the video monitoring that passes through the Internet enforcement that occurs, its function is also more single, and majority can only be watched a certain road video pictures and carry out some shirtsleeve operations.

Another kind is not realized large-scale video monitoring by the Internet by renting some expensive network line, for example application number is that 20071008698.1 Chinese invention patents disclose a kind of long distance control system and method for supervising based on the Internet, its technical essential is by monitor terminal monitored device to be monitored in real time, gathers the real time data of monitored device; Monitor terminal sends to remote control center with the real time data of being gathered; The real time data that the remote control center record is received is also carried out alarm decision, and client is stored and sent to warning message; After client was received warning message, the visit remote control center was checked the historical record of real time data and warning message.Its system architecture as shown in Figure 1, its advantage is: communication is rapid and convenient more; Communication fee reduces; Long-range access way is varied, and special-purpose software needn't be installed, and cost reduces; Be convenient to the centralized management to data, secondary development simultaneously, is convenient to the access rights of supervising the network.But its shortcoming is to need to set up special-purpose VPN (Virtual Private Network) VPN, and this cost for small business is higher, is unfavorable for that enterprise reduces cost and popularization on a large scale.

How to make full use of this free large platform of INTERNET, realize Network Video Surveillance within trans-city, the transnational worldwide in other words, and functionally be not subjected to big restriction, become problem demanding prompt solution.

The utility model content

At above-mentioned defective, the utility model provides a kind of system that realizes the Network Video Surveillance under the internet platform, with solution prior art or cost height, or the big technical problem of monitoring range limitation.

For achieving the above object, the present invention has adopted following technical scheme:

A kind of system that realizes the Network Video Surveillance under the internet platform comprises several user sides, and those user sides all insert the Internet, also comprise: the video monitoring terminal, in order to gather video information; At least one DDNS server, it is with thinking that described video monitoring terminal provides the DDNS registration service; And at least one network access device, this network access device is realized local area network (LAN) and Internet connection with thinking that described video monitoring terminal provides port mapping; Wherein, described video monitoring terminal is all carried out network by local area network (LAN) with described DDNS server and is connected, and, further be connected to the Internet by described network access device.

Preferably, described video monitoring terminal is all supported the UPNP agreement.

Preferably, described video monitoring terminal is one of IP CAMERA (web camera), DVS (network video server), DVR (DVR) and other video terminals.

Preferably, described network access device is a kind of router.

Preferably, described user side be portable computer, PC or intelligent mobile phone terminal one of them.

Preferably, described video monitoring terminal further comprises a main equipment and some slave units, and wherein said main equipment is determined by competition mechanism.

Preferably, described competition mechanism is meant the video monitoring terminal that is registered to 80 mapped port in port mapping at first promptly as main equipment, and all the other video monitoring terminals then are considered as slave unit.

Owing to adopted above technical characterictic, make the utility model have following advantage and good effect: at first than prior art, do not need to set up dedicated network, only need public the Internet can realize that user side is by domain name mapping accessing video monitor terminal; Secondly, adopt redirection mechanism, can improve access to netwoks efficient; The 3rd, fault tolerant mechanism can be avoided changing and causing port mapping not exist to make the problem that system can not normally move owing to network interconnection apparatus, network interconnection.

Description of drawings

Fig. 1 is a kind of system architecture diagram of prior art internet video monitoring;

Fig. 2 is network system architecture figure of the present utility model;

Fig. 3 is a schematic diagram of the present utility model;

Fig. 4 is the detail flowchart of the utility model realization based on the video monitoring of the Internet.

Embodiment

Below in conjunction with accompanying drawing, invention done being described in further detail.

Thought core of the present utility model is, is video terminal distributing IP address port, and inserts the Internet, reaches the purpose of accessing video terminal by domain name mapping and Internet protocol.

The utility model provides a kind of system that realizes video monitoring under the internet platform, please refer to Fig. 1, be system architecture diagram of the present invention, as seen comprise several in this system and be connected user side 11 in the Internet 10, and plurality of video monitor terminal 22 is connected local area network (LAN) 20 inside jointly with DDNS server (DDNS server) 21, and local area network (LAN) 20 is by realizing network interconnections by network interconnection apparatus, network interconnection 30 and the Internet 20.

Wherein user side 11 can be a computer, and notebook computer industry can be the PDA Business Assistant, punctilio not, and user side 11 is installed the associated video softwares.Video monitoring terminal 22 can be IP CAMERA (web camera), DVS (network video server), DVR (DVR) or other video terminals, as long as support UPNP (Universal Plug and Play) agreement.Network interconnection apparatus, network interconnection 30 can be a router, or other functionally similar equipment, is not limited.

Wherein the video monitoring terminal 22, in order to gather video information; DDNS server 21, it is with thinking that described video monitoring terminal 22 provides the DDNS registration service; Network access device 30 with thinking that described video monitoring terminal 22 provides port mapping, realizes that local area network (LAN) 20 is connected with the Internet 30.

Please refer to Fig. 3 to Fig. 4, be described in detail the process that native system realizes being undertaken by the Internet video monitoring

(1) all video monitoring terminals are to network access device request port mapping, and obtain the IP address;

Because all video monitoring terminals are all only torn the UPNP agreement open, equipment is after being connected to in-house network, equipment can add port mapping to router by the UPNP agreement at first automatically, in this process, the equipment that at first is mapped to 80 ports is promptly as the main equipment in all video monitoring terminals, and the terminal that is registered to other ports is then as slave unit.

(2) all video monitoring terminals are sent the DDNS register requirement to the DDNS server;

May there be multiple devices in in-house network, the user generally will visit any equipment wherein, therefore every equipment is all necessary will have unique sign to distinguish, be generally domain name and the user imports in browser, company or unit generally have only a domain name, but equipment is in the increase that does not stop, replacing, if every increase or to change an equipment all be that it distributes new domain name, this is unpractical, and the introducing of DDNS technology just can solve this problem by recycling DDNS so.The user only need know the current domain name of the equipment that he visits, and just can visit this equipment in the in-house network by key in this domain name in browser.

In this step, the mode that terminal obtains DDNS can have multiple, peanut shell, 3322 or well-known DDNS service such as BIND9, but those access waies expend too big, therefore in the present invention, employing is provided with a special-purpose DDNS DDNS server in local area network (LAN), handled by its unified processing from the equipment DDNS, as long as in the agreement of DDNS and the domain name registration of equipment room definition request dynamic.

(3) DDNS server application for registration DDNS, and whether notice video monitoring terminal succeeds in registration;

In case succeed in registration, then slave unit uses when main equipment domain-name information bag is redirected for main equipment.

(4) user side is by internet access video monitoring terminal.

Because, user side can only pass through the domain name access node, therefore user side can be imported the DDNS that needs access node in browser, promptly be connected to 80 ports (80 ports are default ports that domain name connects) of network interconnection apparatus, network interconnection (for example router), because 80 ports are defined as main equipment, then this moment, main equipment can be inquired about the domain name tabulation that is stored in equipment all in the main equipment, what determine that the user will visit is that equipment, if main equipment, just do not need to do redirected, direct and user browser connects, if slave unit, then be redirected to the slave unit of appointment again by main equipment, the slave unit of appointment has just been set up with user's browser and has been connected like this, connect the foundation back and just can use http protocol to communicate, come control appliance by http protocol with household register

Main equipment is not changeless, after former main equipment rolls off the production line, need compete main equipment again, how knowing that main equipment rolls off the production line can regularly send heartbeat packet to main equipment by slave unit, main equipment is replied after receiving heartbeat packet, if surpassing predefined number of times (for example 3 this), slave unit do not receive that heartbeat replys then think that main equipment rolls off the production line, this moment is 80 original port mapping of deletion earlier, slave unit is promptly competed 80 mapped port again afterwards, and the video monitoring terminal of competing 80 ports once more is promptly as the main equipment in the new mapping.

In system, network interconnection apparatus, network interconnection might be replaced, and all of the port mapping will not exist behind the replacing router, so need provide a kind of mechanism to guarantee can reset automatically after router is changed, the assurance system can also normally move, and can realize by following manner

(1) whether main equipment needs regular check 80 port mapping record to exist and points to self, if there is no then need add map information again, if 80 port mapping pointed to other slave units (for example since 80 port mapping by manual modification, perhaps some other special circumstances), then need stop to reply, so that other equipment go again the read port mapping table to obtain correct master server IP or remove to compete again master server.

(2) whether slave unit regular check self port mapping exists, and does not then solve router and re-registers port mapping if do not exist.

In sum, adopt system of the present utility model, various watch-dogs are inserted in the small-sized local area network (LAN) of an intranet or family, need not to do any configuration, no matter use what equipment (as PC, notebook computer, smart mobile phone etc.) online as long as in browser, key in the DDNS of relevant device just can be opened relevant device in browser software interface INTERNET user all over the world, just can control equipment.Be the IP CAMERA video image that just can see this equipment, device parameter etc. is set as: equipment, DVR can also call video recording among the DVR etc. in this way.

User terminal can need not to adopt VPN by the Internet, can realize visiting far-end video monitoring terminal, and can improve access to netwoks efficient; Adopt fault tolerant mechanism, can avoid making the problem that system can not normally move because the network interconnection apparatus, network interconnection replacing causes port mapping not exist; Adopt competition mechanism to determine the port of external reference, and utilize redirection mechanism to realize the accuracy of access means; Can make things convenient for the user largely, and not need higher cost.

More than disclosed only be several preferred embodiment of the present utility model, but the utility model is not limited thereto, any those skilled in the art can think variation, all should drop in the protection range of the present utility model.

Claims

1. a system that realizes the Network Video Surveillance under the internet platform comprises several user sides, and those user sides all insert the Internet, it is characterized in that, also comprise:

The video monitoring terminal is in order to gather video information;

At least one DDNS server, it is with thinking that described video monitoring terminal provides the DDNS registration service; And

At least one network access device, this network access device is realized local area network (LAN) and Internet connection with thinking that described video monitoring terminal provides port mapping;

Wherein, described video monitoring terminal is all carried out network by local area network (LAN) with described DDNS server and is connected, and, further be connected to the Internet by described network access device.

2. the system as claimed in claim 1 is characterized in that, described video monitoring terminal is all supported the UPNP agreement.

3. the system as claimed in claim 1 is characterized in that, described video monitoring terminal is one of IP CAMERA, DVS, DVR and other video terminals.

4. the system as claimed in claim 1 is characterized in that, described network access device is a kind of router.

5. the system as claimed in claim 1 is characterized in that, described user side be portable computer, PC or intelligent mobile phone terminal one of them.

6. the system as claimed in claim 1 is characterized in that, described video monitoring terminal further comprises a main equipment and some slave units, and wherein said main equipment is determined by competition mechanism.

7. system as claimed in claim 6 is characterized in that, described competition mechanism is meant the video monitoring terminal that is registered to 80 mapped port in port mapping at first promptly as main equipment, and all the other video monitoring terminals then are considered as slave unit.