CN105553853B - A kind of methods, devices and systems of NVR management IPC - Google Patents
A kind of methods, devices and systems of NVR management IPC Download PDFInfo
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- CN105553853B CN105553853B CN201510867776.8A CN201510867776A CN105553853B CN 105553853 B CN105553853 B CN 105553853B CN 201510867776 A CN201510867776 A CN 201510867776A CN 105553853 B CN105553853 B CN 105553853B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1073—Registration or de-registration
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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
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses the methods, devices and systems that a kind of NVR manages IPC, it is provided with egress router between the NVR and IPC, the egress router enables NAT, the NVR is located at Intranet, the IPC is located at outer net, NVR sends IP address, identity ID and the reception registered port numbers of itself by multicast message to egress router, egress router sends the identity ID of the NVR to IPC by multicast message and receives registered port numbers, so that IPC initiates registration to the port numbers and identity ID, and forward logon message to NVR, so that IPC smoothly accesses NVR.The inventive system comprises forwarding-table items to establish module, group broadcasting module, the first forwarding module and the second forwarding module.Present invention configuration is simple, easy to operate, is conducive to the installation of engineering site and the maintenance in later stage.
Description
Technical field
The invention belongs to the methods, devices and systems that technical field of video monitoring more particularly to a kind of NVR manage IPC.
Background technology
Video monitoring is the important component of safety and protection system, and video monitoring is intuitive with it, accurate, in time and information
It is abundant in content and be widely used in many occasions.In recent years, with computer, network and image procossing, transmission technology fly
Speed development, the universalness trend of video monitoring are more and more obvious, and are increasingly intended to substitute using IP Video Supervision Techniques
Traditional analog video monitoring technology.
As IP monitoring technologies, internet popularize, linking Internet is more and more convenient, trans-regional branch of department machine
Structure, business consortium distribution on global are increasingly required remote internet video monitoring.And often in actual use, such as Fig. 1
Shown, network hard disk video recorder NVR is in Intranet, and web camera IPC is in outer net.Due to the NAT type networkings of both ends access
Complicated and IP, port variation, the NVR in NAT can not manage the IPC video cameras outside NAT, it is difficult to carry out the visit of video traffic
It asks.
Prior art needs that the mapping of all of the port will be configured on the router in NVR and each IPC, and configuration is multiple
It is miscellaneous, it is more demanding for administrative staff.For common consumer, it is difficult to grasp configuration method, lead to the dimension in later stage after installation
Shield is difficult.
Therefore how flexibly convenient NVR of the realization in NAT to NAT outside IPC be managed, be asking for urgent need to resolve
Topic.
Invention content
The object of the present invention is to provide the methods, devices and systems that a kind of NVR manages IPC, to solve in prior art NAT
NVR management NAT outside IPC when configuration management complexity problem, flexibly it is convenient, safely realization NAT in NVR to NAT outside
The management of IPC.
To achieve the goals above, technical solution of the present invention is as follows:
A kind of method of NVR management IPC, is provided with egress router, the egress router between the NVR and IPC
NAT is enabled, the NVR is located at Intranet, and the IPC is located at outer net, and the method is applied to egress router, the method packet
It includes:
NVR is received with the IP address for carrying the NVR of the multicast address transmission set, identity ID and receives registered port
Number the first multicast message, parse first multicast message and establish forwarding-table item;
With the multicast address outer net IP address for carrying egress router, the end for receiving IPC messages are sent to IPC
The second multicast message of the identity ID of slogan and NVR, the IPC to be configured with the multicast address receive second multicast
Message, and logon message is sent according to second multicast message;
Reception IPC carries the logon message of the identity ID of the identity ID and the NVR to be registered of IPC, according to turning for foundation
Forwarding list item forwards the logon message to corresponding NVR;
Succeeding in registration of receiving that NVR returns and is transmitted to IPC at response message.
Wherein, the NVR and IPC is pre-configured with identical multicast address according to mutual administrative relationships.
The IPC is when sending logon message, the outer net IP address to egress router, the end for receiving IPC messages
Slogan sends logon message, and the logon message carries the identity ID of the identity ID and the NVR to be registered of IPC.
The invention also provides a kind of NVR to manage the device of IPC, and egress router is provided between the NVR and IPC,
The egress router enables NAT, and the NVR is located at Intranet, and the IPC is located at outer net, and described device is applied to Exit Road
By device, described device includes:
Forwarding-table item establishes module, the IP for carrying the NVR sent with the multicast address set for receiving NVR
Location, identity ID and the first multicast message for receiving registered port numbers, parse first multicast message and establish forwarding-table item;
Group broadcasting module carries the outer net IP address of egress router, for connecing for being sent to IPC with the multicast address
The second multicast message of the port numbers of IPC messages and the identity ID of NVR are received, the IPC to be configured with the multicast address connects
Second multicast message is received, and logon message is sent according to second multicast message;
First forwarding module, for receive IPC carry IPC identity ID and the NVR to be registered identity ID registration
Message forwards the logon message to corresponding NVR according to the forwarding-table item of foundation;
Second forwarding module response message and is transmitted to IPC for receiving succeeding in registration for NVR returns.
The invention also provides a kind of video monitoring system, the system comprises positioned at Intranet NVR, positioned at outer net
IPC, and the egress router that is arranged between the NVR and IPC, the egress router enable NAT, wherein:
The NVR is registered for being sent the IP address for carrying the NVR, identity ID with the multicast address of setting and being received
First multicast message of port numbers, and the logon message from IPC of egress router forwarding is received, it obtains in the logon message
The identity ID of corresponding IPC identifies this IPC and succeeds in registration, and sends the response message that succeeds in registration;
The egress router, the first multicast message sent for receiving Intranet NVR, parses first multicast message simultaneously
Forwarding-table item is established, and is sent to IPC with the multicast address and carries the outer net IP address of egress router, for receiving IPC
Second multicast message of the port numbers of message and the identity ID of NVR, and the logon message of IPC transmissions is received, according to foundation
Forwarding-table item forwards the logon message to corresponding NVR, and succeeding in registration of receiving that NVR returns and is transmitted to response message
IPC;
The IPC, the second multicast message for receiving egress router transmission are sent out according to the second multicast message of reception
The logon message of the identity ID of the identity ID and the NVR to be registered that carry IPC itself are sent, and receives egress router forwarding
The response message that succeeds in registration of NVR, is linked into NVR.
Wherein, the NVR and IPC is pre-configured with identical multicast address according to mutual administrative relationships.
The IPC is when sending logon message, the outer net IP address to egress router, the end for receiving IPC messages
Slogan sends logon message, and the logon message carries the identity ID of the identity ID and the NVR to be registered of IPC.
The methods, devices and systems of NVR management IPC proposed by the present invention a kind of, NVR by multicast message to Exit Road by
Device sends the IP address of itself, identity ID and receives registered port numbers, and egress router is sent by multicast message to IPC should
The identity ID and reception registered port numbers of NVR, so that IPC initiates registration to the port numbers and identity ID, and forwards logon message
To NVR, so that IPC smoothly accesses NVR.The method configuration of the present invention is simple, easy to operate, is conducive to the peace of engineering site
The maintenance of dress and later stage.
Description of the drawings
Fig. 1 is video monitoring system network of the present invention;
Fig. 2 is the method flow diagram that NVR of the present invention manages IPC;
Fig. 3 is the apparatus structure schematic diagram that NVR of the present invention manages IPC.
Specific implementation mode
Technical solution of the present invention is described in further details with reference to the accompanying drawings and examples, following embodiment is not constituted
Limitation of the invention.
As shown in Figure 1, the egress router of Intranet enables NAT, NVR1 and NVR2 in NAT, and IPC3 and IPC4 exist
Outside NAT, since the presence of NAT causes IPC3 and IPC4 to cannot connect to NVR.
As shown in Fig. 2, a kind of method of NVR management IPC of the present embodiment, is applied to egress router, includes the following steps:
Step S1, IP address, identity ID and the reception for carrying the NVR that the multicast address for receiving NVR to set is sent
First multicast message of registered port numbers parses first multicast message and establishes forwarding-table item.
NVR and IPC acquiescences one multicast address multicast_address known jointly of agreement, example in the present embodiment
Such as 224.0.2.254.For NVR, after configuring the multicast address, for sending multicast message to the multicast address;For
IPC is added to for sending multicast message to the multicast address in multicast group.
NVR first sends the first multicast message with the multicast address set, by the IP address of itself, identity ID and receives note
Volume port numbers inform egress router, multicast message content include the IP address of the NVR, NVR identity ID, be subsequently used for receiving
The port Port1 of registration, such as 5060.
Egress router enables multicast, and multicast group is added to by the LAN interface of Intranet.Then in NVR to multicast address
224.0.2.254 after sending multicast message, the LAN interface of egress router can receive the multicast message of NVR transmissions.Go out
Mouth router obtains above-mentioned multicast message, and parses identity ID and NVR the reception registration that this message obtains the IP address of NVR, NVR
Port numbers.
After obtaining above- mentioned information, egress router generates a forwarding-table item, as shown in table 1:
Table 1
In the tables of data of generation, egress router is that each NVR distributes an outer net wan interface for receiving IPC reports
The port Port2 of text, such as the corresponding Port2 of NVR1 are 2000.
Step S2, it is sent to IPC with the multicast address and carries the outer net IP address of egress router, for receiving IPC
Second multicast message of the port numbers of message and the identity ID of NVR, the IPC to be configured with the multicast address is received should
Second multicast message, and logon message is sent according to second multicast message.
Egress router corresponds to the outer net multicast address multicast_ of configuration to IPC by outer net wan interface
Address be, for example, 224.0.2.254 send multicast message, the multicast message include the outer net IP address of router for example
10.10.10.254, the port of the identity ID such as NVR1 of NVR, egress router wan interface for the IPC messages of reception
Port2, such as 2000.
Step S3, the logon message of the identity ID of NVR that IPC carries the identity ID of IPC and to be registered is received, according to building
Vertical forwarding-table item forwards the logon message to corresponding NVR.
IPC can be consistent by configuring multicast address with the multicast address of NVR, determine that the management of IPC and NVR is closed
System.That is which IPC NVR manages, then the multicast address of these IPC just configure it is consistent with NVR multicast address.Such as IPC3
It is managed by NVR1, then the multicast address configuration of IPC3 is consistent with the multicast address of NVR1, is 224.0.2.254, to which IPC3 exists
In the multicast group of the multicast address, convenient for receiving the multicast message that egress router is sent.
Egress router wan interface sends multicast message, and IPC is added to multicast address multicast_ in outer net
Address is the multicast group of 224.0.2.254, obtains the multicast message that egress router is sent.Such as IPC3 parsing groups are reported
Text obtains identity ID such as NVR1, the egress router WAN of outer net address such as 10.10.10.254, NVR of egress router
Port Port2 such as 2000 of the interface for the IPC messages of reception.
IPC carries the identity ID such as IPC3 of IPC itself, the identity ID such as NVR1 for the NVR to be registered by unicast,
To outer net the IP address such as 10.10.10.254 and port Port2 such as 2000 of egress router wan interface, registration is initiated.
After egress router wan interface receives this logon message, forwarding-table item (table 1) is checked, by the identity for comparing NVR
ID, for egress router this logon message, it is that NVR1 is corresponded to be forwarded to identity ID in Intranet by the LAN interface of egress router
NVR, it is (5060) Port1 that purpose IP address, which is 202.169.100.8, port,.
Step S4, succeeding in registration of receiving that NVR returns and is transmitted to IPC at response message.
Identity ID is that the NVR of NVR1 receives the logon message of egress router forwarding, parses the logon message, obtaining should
The identity ID such as IPC3 of corresponding IPC, identify this IPC and succeed in registration in logon message, and are sent out to egress router LAN interface
Send the response message that succeeds in registration.
It should be noted that IPC by unicast to Exit Road by wan interface initiate registration, thus egress router obtains
The IP address of IPC and the identity ID of IPC, and be forwarded accordingly later, which is not described herein again.
Egress router sends registration reply message by wan interface to IPC3, and entire data channel is got through at this time, subsequently
Business all NVR1 and IPC3 is forwarded in this list item by egress router.
Fig. 3 shows a kind of device of NVR management IPC, and egress router, egress router are provided between NVR and IPC
NAT is enabled, NVR is located at Intranet, and IPC is located at outer net, which is applied to egress router, including:
Forwarding-table item establishes module, the IP for carrying the NVR sent with the multicast address set for receiving NVR
Location, identity ID and the first multicast message for receiving registered port numbers, parse first multicast message and establish forwarding-table item;
Group broadcasting module carries the outer net IP address of egress router, for connecing for being sent to IPC with the multicast address
The second multicast message of the port numbers of IPC messages and the identity ID of NVR are received, the IPC to be configured with the multicast address connects
Second multicast message is received, and logon message is sent according to second multicast message;
First forwarding module, for receive IPC carry IPC identity ID and the NVR to be registered identity ID registration
Message forwards the logon message to corresponding NVR according to the forwarding-table item of foundation;
Second forwarding module response message and is transmitted to IPC for receiving succeeding in registration for NVR returns.
The above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited, without departing substantially from essence of the invention
In the case of refreshing and its essence, those skilled in the art make various corresponding changes and change in accordance with the present invention
Shape, but these corresponding change and deformations should all belong to the protection domain of appended claims of the invention.
Claims (5)
1. a kind of method of NVR management IPC, is provided with egress router, the egress router makes between the NVR and IPC
Can NAT, the NVR is located at Intranet, and the IPC is located at outer net, and the method is applied to egress router, which is characterized in that
The method includes:
NVR is received with the IP address for carrying the NVR of the multicast address transmission set, identity ID and receives registered port numbers
First multicast message parses first multicast message and establishes forwarding-table item;
With the multicast address outer net IP address for carrying egress router, the port for receiving IPC messages are sent to IPC
Number and NVR identity ID the second multicast message, the IPC to be configured with the multicast address receives second group of report
Text, and logon message is sent according to second multicast message;The IPC is when sending logon message, to the outer of egress router
Net IP address sends logon message for receiving the port numbers of IPC messages, and the logon message carries the identity ID of IPC and wants
The identity ID of the NVR of registration;
Reception IPC carries the logon message of the identity ID of the identity ID and the NVR to be registered of IPC, according to the forwarding table of foundation
Item forwards the logon message to corresponding NVR;
Succeeding in registration of receiving that NVR returns and is transmitted to IPC at response message.
2. the method for NVR management IPC according to claim 1, which is characterized in that the NVR and IPC is according to mutual pipe
Reason relationship is pre-configured with identical multicast address.
3. a kind of device of NVR management IPC, is provided with egress router, the egress router makes between the NVR and IPC
Can NAT, the NVR is located at Intranet, and the IPC is located at outer net, and described device is applied to egress router, which is characterized in that
Described device includes:
Forwarding-table item establishes module, IP address, the body for carrying the NVR sent with the multicast address set for receiving NVR
Part ID and the first multicast message for receiving registered port numbers, parse first multicast message and establish forwarding-table item;
Group broadcasting module carries the outer net IP address of egress router, for receiving for being sent to IPC with the multicast address
Second multicast message of the port numbers of IPC messages and the identity ID of NVR, the IPC to be configured with the multicast address are received
Second multicast message, and logon message is sent according to second multicast message;The IPC is when sending logon message, to going out
The outer net IP address of mouth router sends logon message for receiving the port numbers of IPC messages, and the logon message carries IPC
Identity ID and the NVR to be registered identity ID;
First forwarding module, for receive IPC carry IPC identity ID and the NVR to be registered identity ID logon message,
Forward the logon message to corresponding NVR according to the forwarding-table item of foundation;
Second forwarding module response message and is transmitted to IPC for receiving succeeding in registration for NVR returns.
4. a kind of video monitoring system, which is characterized in that the system comprises the NVR positioned at Intranet, the IPC positioned at outer net, with
And the egress router between the NVR and IPC is set, the egress router enables NAT, wherein:
The NVR, for sending the IP address for carrying the NVR, identity ID with the multicast address of setting and receiving registered port
Number the first multicast message, and receive the logon message from IPC of egress router forwarding, obtain in the logon message corresponding
IPC identity ID, identify this IPC and succeed in registration, and send and succeed in registration response message;
The egress router, the first multicast message sent for receiving Intranet NVR, parses first multicast message and establishes
Forwarding-table item, and sent to IPC with the multicast address and carry the outer net IP address of egress router, for receiving IPC messages
Port numbers and NVR identity ID the second multicast message, and receive IPC transmission logon message, according to the forwarding of foundation
List item forwards the logon message to corresponding NVR, and succeeding in registration of receiving that NVR returns and is transmitted to IPC at response message;
The IPC, the second multicast message for receiving egress router transmission are taken according to the transmission of the second multicast message of reception
The logon message of the identity ID of identity ID and the NVR to be registered with IPC itself, and receive the NVR of egress router forwarding
The response message that succeeds in registration, be linked into NVR, the IPC is when sending logon message, to the outer net IP of egress router
Location sends logon message for receiving the port numbers of IPC messages, and the logon message carries the identity ID of IPC and to be registered
The identity ID of NVR.
5. video monitoring system according to claim 4, which is characterized in that the NVR and IPC is closed according to mutual management
System is pre-configured with identical multicast address.
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CN106453370B (en) * | 2016-10-27 | 2020-10-20 | 浙江宇视科技有限公司 | Method and device for registering IPC (inter-programmable logic controller) to NVR (network video recorder) |
CN107508811B (en) * | 2017-08-28 | 2020-05-19 | 浙江宇视科技有限公司 | UNP-based secure registration query method and system |
CN109561049B (en) * | 2017-09-26 | 2021-07-20 | 浙江宇视科技有限公司 | Dynamic access method and device based on monitoring service |
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CN109962990B (en) * | 2017-12-26 | 2022-04-12 | 浙江宇视科技有限公司 | Method and device for automatically accessing monitoring equipment in NAT |
CN108683701A (en) * | 2018-04-03 | 2018-10-19 | 浙江大华技术股份有限公司 | A kind of connection method and rear end equipment, IPC |
CN108600675B (en) * | 2018-05-24 | 2020-07-31 | 普联技术有限公司 | Channel path number expansion method, device, network video recorder and storage medium |
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