CN106603984B - A method of carrying out serverless backup dialing under video intercom LAN environment - Google Patents
A method of carrying out serverless backup dialing under video intercom LAN environment Download PDFInfo
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- CN106603984B CN106603984B CN201611200132.4A CN201611200132A CN106603984B CN 106603984 B CN106603984 B CN 106603984B CN 201611200132 A CN201611200132 A CN 201611200132A CN 106603984 B CN106603984 B CN 106603984B
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- dialing
- mode
- tcp
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- video intercom
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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
- H04N7/186—Video door telephones
-
- 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
- H04L65/1069—Session establishment or de-establishment
-
- 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
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The method that the invention discloses a kind of under video intercom LAN environment carries out serverless backup dialing, the visual-speaking system being made of the visual intercommunicating indoor set of one or more video intercom outdoor unit, wireless router, one or more mobile phone and one or more；If all terminals, in same LAN environment, not by server, dial mode is constant, dialing intercommunication can also be carried out between terminal, when dialing, system automatically selects the dial mode with or without server.By the present invention in that with TCP and cooperating the communication of algorithms of a small amount of multicast, in the case where no server, both call sides can also carry out dialing intercommunication under local area network, and dial mode is constant, with multicast and TCP mixed communication mode, the communication packet loss problem all with multicast mode is avoided to greatest extent, when dialing, system automatic identification local area network, outer network environment, it is automatic to select optimum way dialing.
Description
Technical field
The present invention relates to computer fields, and in particular to one kind carries out serverless backup under video intercom LAN environment and dials
Number method.
Background technique
Video intercom is based on TCP/IP, and this kind of video intercom has self-defining communication protocol, also has sip etc. famous
No matter communication protocol any communication protocol is used, and visual-speaking system is generally provided with server to manage account, number and assist
Call terminal is helped to carry out audio/video flow transmission.In the case where no server or server can not communicate, call terminal can
It is dialled by manually entering the address ip, but does so the address ip that is difficult to know and remember other side, needless to say some
The terminal address ip that is switched on every time can all change.
Above-mentioned visual-speaking system can have the shortcomings that being described below:
One, dialing intercommunication can not be carried out by number in the case where no server；
Bis-, the address other side ip can be obtained by specific process, dialing intercommunication, but this method is then carried out with the address ip
Not general, the address other side ip is variation sometimes；
Tri-, with pure multicast mode dynamic acquisition other party number, dialing intercommunication is then carried out with the address ip, cast communication is adopted
With UDP mode, UDP communication mode has certain packet loss in communication environments such as WIFI, so as to cause dialing failure.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of not by server, using TCP and cooperates in local area network
The communication mode of a small amount of multicast is by the algorithm for carrying out dialing intercommunication between terminal.
The present invention is achieved through the following technical solutions: one kind carries out under video intercom LAN environment without service
The method of device dialing, by one or more video intercom outdoor unit, wireless router, one or more mobile phone and one or more
Visual intercommunicating indoor set composition visual-speaking system；
If all terminals, in same LAN environment, not by server, dial mode is constant, between terminal
It can carry out dialing intercommunication, when dialing, internal system is first attempted to serverless backup mode, when can not dial by certain time-out
Server dial mode has been reused, the Dialing Method and step of the realization serverless backup of program under sip telephony environment are described below
It is rapid:
(1) it is serviced when dialing party starts with tcp and monitors a particular port, when dialing is issued with specific multicast mode to be connect
The ip address information of the sip number for the side of listening and itself；
(2) specific multicast is added in all sides of answering in advance, be received in compliance with the side of answering of the number itself address ip with
For sip listening port information with tcp mode response to dialing party, the side of answering gets dialing party in the cast communication of beginning
Tcp information on services；
(3) dialing party constructs special sip number with the address ip received and port numbers in tcp service, such as " sip:
192.168.1.111:5060；
(4) local dialing, the similar conventional dial mode of subsequent process are carried out with above-mentioned number；
The beneficial effects of the present invention are: solving following by the present invention in that with TCP and cooperate the communication of algorithms of a small amount of multicast
Problem:
(1) in the case where no server, both call sides can also carry out dialing intercommunication, and dialing party under local area network
Formula is constant (not having to the input address ip)；
(2) multicast and TCP mixed communication mode are used, avoids the communication packet loss problem all with multicast mode to greatest extent；
(3) when dialling, system automatic identification local area network, outer network environment are automatic to select optimum way dialing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is system diagram of the invention.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
As shown in Figure 1, mobile phone, visual intercommunicating indoor set, video intercom outdoor unit are all the call ends of visual-speaking system
End.If all terminals, in same LAN environment, not by server, dial mode is constant (without manually inputting ip
Address), dialing intercommunication can also be carried out between terminal, when dialing, internal system is first attempted with serverless backup mode, by certain
Time-out has reused server dial mode when can not dial, the realization serverless backup of program under sip telephony environment is described below
Dialing Method and step:
It is serviced when dialing party starts with tcp and monitors a particular port, issue the side of answering with specific multicast mode when dialing
Sip number and itself ip address information, all sides of answering addition specific multicast in advance be received in compliance with the side of answering of the number
Itself address ip and sip listening port information, with tcp mode, response to dialing party, (side of answering is in the cast communication of beginning
Get dialing party tcp information on services), dialing party constructs special sip with the address ip received and port numbers in tcp service
Number (such as " sip:192.168.1.111:5060 "), then carries out local dialing with this number, and subsequent process is conventional group similar
Number mode.
The beneficial effects of the present invention are: not taking by the present invention in that with TCP and cooperate the communication of algorithms of a small amount of multicast
It is engaged in the case where device, both call sides can also carry out dialing intercommunication under local area network, and dial mode is constant；
With multicast and TCP mixed communication mode, the communication packet loss problem all with multicast mode is avoided to greatest extent, is dialled
When, system automatic identification local area network, outer network environment are automatic to select optimum way dialing.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection scope should be determined by the scope of protection defined in the claims.
Claims (1)
1. a kind of method for carrying out serverless backup dialing under video intercom LAN environment, it is characterised in that: by one or more
Video intercom outdoor unit, wireless router, one or more mobile phone and one or more visual intercommunicating indoor set composition
Visual-speaking system；
It can also be with if all terminals, in same LAN environment, not by server, dial mode is constant, between terminal
Carry out dialing intercommunication, when dialing, internal system first attempts to be made again when can not dial by certain time-out with serverless backup mode
With there is server dial mode, the Dialing Method and step of the realization serverless backup of program under sip telephony environment are described below:
(1) it is serviced when dialing party starts with tcp and monitors a particular port, issue the side of answering with specific multicast mode when dialing
Sip number and itself ip address information；
(2) specific multicast is added in all sides of answering in advance, itself address ip and sip are supervised by the side of answering for being received in compliance with the number
Listen port number information tcp mode response to dialing party, the side of answering gets dialing party tcp service in the cast communication of beginning
Information；
(3) dialing party constructs special sip number with the address ip received and port numbers in tcp service；
(4) local dialing, the similar conventional dial mode of subsequent process are carried out with above-mentioned number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200132.4A CN106603984B (en) | 2016-12-22 | 2016-12-22 | A method of carrying out serverless backup dialing under video intercom LAN environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200132.4A CN106603984B (en) | 2016-12-22 | 2016-12-22 | A method of carrying out serverless backup dialing under video intercom LAN environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106603984A CN106603984A (en) | 2017-04-26 |
| CN106603984B true CN106603984B (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611200132.4A Active CN106603984B (en) | 2016-12-22 | 2016-12-22 | A method of carrying out serverless backup dialing under video intercom LAN environment |
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| CN106603984A (en) | 2017-04-26 |
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