CN102420823A - Simplified-session initiation protocol (SIP)-based simplified intelligent monitoring system and positioning and monitoring methods - Google Patents
Simplified-session initiation protocol (SIP)-based simplified intelligent monitoring system and positioning and monitoring methods Download PDFInfo
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Abstract
The invention relates to a simplified-session initiation protocol (SIP)-based simplified intelligent monitoring system, which comprises at least one monitoring terminal, at least one controlled terminal and a server, wherein each monitoring terminal and each controlled terminal are connected with the server through a SIP-based network; each of the monitoring terminal, the controlled terminal and the server comprises a simplified SIP stack; and a session initiation part in the simplified SIP stack is cancelled, and the simplified SIP stack is compatible with a system using an integral SIP protocol, thereby simplifying the processing of a transaction layer and a user agent (UA) layer. The invention also relates to a simplified-SIP-based simplified intelligent positioning method and a simplified-SIP-based simplified intelligent monitoring method. Only non-INVITE messages rather than INVITE messages are transmitted and processed in a SIP, simultaneously optimization is performed in the UA layer and INVITE related parts are deleted, so that the whole protocol stack is simpler, more stable, applicable to small and miniature embedded systems and low in cost.
Description
Technical field
The present invention relates to communication technical field,, specifically be meant a kind of based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol and location and method for supervising particularly based on the VoIP communication technical field of Session Initiation Protocol.
Background technology
Session Initiation Protocol is applied in the VOIP communication system as the communication protocol of IMS (IP multimedia subnet) network appointment at present more and more widely.RFC3261 is the basic agreement standard of SIP, and this standard is to the utilization scene of Session Initiation Protocol, and layering realization and syntax gauge have been done detailed description.The utilization scene is mainly concerned with sip terminal registration, session initiation and signalling route.The realization of Session Initiation Protocol is divided into four layers, grammer layer, transport layer, transaction layer and UA (User Agent) layer; The realization of whole agreement is based on the transaction model of the request of class HTTP, and the message bag adopts text formatting.Be applied to aspect the field of VOIP communication, Session Initiation Protocol with it based on text, autgmentability is strong etc., and advantage has occupied leading position, and is also progressively ripe.Future soon can be predicted, increasing sip terminal can be occurred.
The notion of Smart Home is accepted by people gradually at present, safety monitoring system, and the application layer protocol that manufacturer adopted of warning system generally belongs to proprietary protocol, is difficult to compatibility, is mainly used in enclosed mini system.Along with being rooted in the hearts of the people of logistics net notion; Internet no longer just is used for the transmission of data between the computer, and its effect slowly spreads wifi toward more terminal equipment; Wimax, the combination of internet with intelligent terminal more quickened in popularizing of wireless technologys such as 3G.Under this background, Session Initiation Protocol is also incited somebody to action the field except that voice communication that applies to more and more widely.The Session Initiation Protocol of RFC3261 specification description is mainly the design of session initiation aspect at present, and request can be divided into INVITE (invitation) and non-INVITE request, and wherein the former realization is comparatively complicated, and also is the factors of instability when causing agreement specifically to realize.。
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art; Provide a kind of based on simplifying Session Initiation Protocol, simple in structure, stable; Be applicable to small-sized and micro embedded system, and simplified intelligent supervisory control system with low cost and location and method for supervising.
In order to realize above-mentioned purpose, of the present invention have following formation based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol:
This system comprises at least one monitor terminal, at least one controlled terminal and server, and described each monitor terminal all is connected described server through the network based on Session Initiation Protocol with controlled terminal.Wherein, Described each monitor terminal, controlled terminal and server include simplifies the Session Initiation Protocol stack, and the simplification Session Initiation Protocol stack of described each monitor terminal and controlled terminal is connected the simplification Session Initiation Protocol stack of described server through described network based on Session Initiation Protocol.Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer, and described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.
Should be based in the simplified intelligent supervisory control system of simplifying Session Initiation Protocol, described simplification SIP transport layer only comprises UDP host-host protocol unit, described UDP host-host protocol unit connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.
Should be based in the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; Described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end transaction units, and described non-INVITE client transaction unit all is connected described simplification SIP transport layer with non-INVITE service end transaction units.
The present invention also provides a kind of and utilizes described system to realize that described server is connected with first monitor terminal based on the simplified intelligent localization method of simplifying Session Initiation Protocol, and this simplified intelligent localization method may further comprise the steps:
(11) start said first monitor terminal, described first monitor terminal is written into the address of described server;
(12) described first monitor terminal sends registration packet according to described address to described server;
(13) described server receives after the described registration packet, returns to described first monitor terminal and confirms bag;
(14) described server sends to described first monitor terminal and includes the subscription package that requires locating information;
(15) described first monitor terminal receives after the described subscription package, returns to described server and confirms bag;
(16) described first monitor terminal sends the notification package with positional information to described server;
(17) described server receives after the described notification package, returns to described first monitor terminal and confirms bag.
Be somebody's turn to do based in the simplified intelligent localization method of simplifying Session Initiation Protocol, in step (17) afterwards, further comprising the steps of:
(18) described first monitor terminal operation first timer;
When (19) described first timer overflows, return step (16).
Should be based in the simplified intelligent localization method of simplifying Session Initiation Protocol, described server also is connected with second monitor terminal, and is further comprising the steps of afterwards in described step (17):
(171) described first monitor terminal sends the subscription package with second monitor terminal information to described server;
(172) described server receives from second monitor terminal and has the second monitoring terminal position notification of information bag;
(173) described server has the second monitoring terminal position notification of information bag and is sent to described first monitor terminal described.
Should be based in the simplified intelligent localization method of simplifying Session Initiation Protocol; Described each monitor terminal and server include simplifies the Session Initiation Protocol stack; Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer; Described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively; Described simplification SIP transport layer only comprises UDP host-host protocol unit; Described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end end transaction units, and described non-INVITE client transaction unit all is connected described UDP host-host protocol unit with non-INVITE service end transaction units, and described UDP host-host protocol unit connects described network based on Session Initiation Protocol.
The present invention also provides a kind of and utilizes described system to realize it is characterized in that based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol described method for supervising may further comprise the steps:
(21) start described controlled terminal, described controlled terminal is written into the address of described server, and begins to detect alarm event;
(22) described controlled terminal sends registration packet according to described address to described server;
(23) described server receives after the described registration packet, returns to described controlled terminal and confirms bag;
(24) described controlled terminal detects alarm event, and will comprise that the message bag of described alarm event information is sent to described server;
(25) described server receives after the described message bag, returns to described controlled terminal and confirms bag.
Be somebody's turn to do based in the simplified intelligent method for supervising of simplifying Session Initiation Protocol, further comprising the steps of afterwards in described step (23):
(231) described server operation second timer;
When (232) described second timer overflowed, described server was to described controlled terminal delivery option bag;
(232) described controlled terminal receives after the described option bag, returns to described server and confirms bag.
Should be based in the simplified intelligent method for supervising of simplifying Session Initiation Protocol; Described controlled terminal and server include simplifies the Session Initiation Protocol stack; Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer; Described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively; Described simplification SIP transport layer only comprises UDP host-host protocol unit; Described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end transaction units, and described non-INVITE client transaction unit all is connected described UDP host-host protocol unit with non-INVITE service end transaction units, and described UDP host-host protocol unit connects described network based on Session Initiation Protocol.
Adopted this invention based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; Its each monitor terminal, controlled terminal and server include simplifies the Session Initiation Protocol stack; This simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer, and described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.Simplify in Session Initiation Protocol stack at this, the part that session is initiated in the Session Initiation Protocol stack divests, but its again with the system compatible of having used complete S IP agreement, thereby simplify the processing of transaction layer and UA layer greatly.Of the present invention based on simplified intelligent localization method of simplifying Session Initiation Protocol and method for supervising in; Only utilize comparatively simple non-INVITE transmission and processing in the Session Initiation Protocol, send and handle, also be optimized at the UA layer simultaneously and do not carry out INVITE; Leave out relevant complicated part with INVITE; Thereby it is make whole protocol stack simple and stable more, be fit to small-sized and micro embedded system applies, and with low cost.
Description of drawings
Fig. 1 is the structural representation based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol of the present invention.
Fig. 2 utilizes system of the present invention to realize the flow chart of steps based on the simplified intelligent localization method of simplifying Session Initiation Protocol.
Fig. 3 utilizes system of the present invention to realize the flow chart of steps based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol.
Fig. 4 realizes location process sketch map through subscription and notice based on the simplified intelligent localization method of simplifying Session Initiation Protocol for of the present invention in practical application.
Fig. 5 passes through to subscribe to and notify the process sketch map that obtains another terminal location for of the present invention based on the simplified intelligent localization method of simplifying Session Initiation Protocol in practical application.
Fig. 6 is for of the present invention based on the process sketch map of the simplified intelligent method for supervising of simplifying Session Initiation Protocol in practical application.
Embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also shown in Figure 1ly, be the structural representation based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol of the present invention.
In one embodiment; Should comprise one or more monitor terminals, one or more controlled terminal and server based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol, each monitor terminal all is connected described server through the network based on Session Initiation Protocol with controlled terminal.Described each monitor terminal, controlled terminal and server include simplifies the Session Initiation Protocol stack, and the simplification Session Initiation Protocol stack of described each monitor terminal and controlled terminal is connected the simplification Session Initiation Protocol stack of described server through described network based on Session Initiation Protocol.Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer, and described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.
Utilize the described system of this execution mode to realize that described server is connected with first monitor terminal, and is as shown in Figure 2 based in the simplified intelligent localization method of simplifying Session Initiation Protocol, described method may further comprise the steps:
(11) start said first monitor terminal, described first monitor terminal is written into the address of described server;
(12) described first monitor terminal sends registration packet according to described address to described server;
(13) described server receives after the described registration packet, returns to described first monitor terminal and confirms bag;
(14) described server sends to described first monitor terminal and includes the subscription package that requires locating information;
(15) described first monitor terminal receives after the described subscription package, returns to described server and confirms bag;
(16) described first monitor terminal sends the notification package with positional information to described server;
(17) described server receives after the described notification package, returns to described first monitor terminal and confirms bag.
Utilize the described system of this execution mode to realize based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol, as shown in Figure 3, may further comprise the steps:
(21) start described controlled terminal, described controlled terminal is written into the address of described server, and begins to detect alarm event;
(22) described controlled terminal sends registration packet according to described address to described server;
(23) described server receives after the described registration packet, returns to described controlled terminal and confirms bag;
(24) described controlled terminal detects alarm event, and will comprise that the message bag of described alarm event information is sent to described server;
(25) described server receives after the described message bag, returns to described controlled terminal and confirms bag.
In a kind of more preferably execution mode, described simplification SIP transport layer only comprises UDP host-host protocol unit, and described UDP host-host protocol unit connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.Described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end transaction units, and described non-INVITE client transaction unit all is connected described simplification SIP transport layer with non-INVITE service end transaction units.
More preferably in the execution mode, described based on the simplified intelligent localization method of simplifying Session Initiation Protocol, in step (17) afterwards, further comprising the steps of at another kind:
(18) described first monitor terminal operation first timer;
When (19) described first timer overflows, return step (16).
In a kind of preferred execution mode, describedly also be connected with second monitor terminal based on the server in the simplified intelligent localization method of simplifying Session Initiation Protocol, further comprising the steps of afterwards in described step (17):
(171) described first monitor terminal sends the subscription package with second monitor terminal information to described server;
(172) described server receives from second monitor terminal and has the second monitoring terminal position notification of information bag;
(173) described server has the second monitoring terminal position notification of information bag and is sent to described first monitor terminal described.
A kind of preferred embodiment in, described further comprising the steps of afterwards in described step (23) based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol:
(231) described server operation second timer;
When (232) described second timer overflowed, described server was to described controlled terminal delivery option bag;
(232) described controlled terminal receives after the described option bag, returns to described server and confirms bag.
In practical application, in order to adapt to the summary of terminal equipment hardware, low cost and high reliability, the present invention has carried out simplifying to Session Initiation Protocol stack standard, expensive, the high maintenance cost of avoiding that numerous and jumbled realization causes and low stability.There are Radvision and Aricent etc. at present commercial complete S IP stack provider, and the purchase code costs an arm and a leg, and each shipment product all need pay license fee, and cost is very high, but stability is high relatively.In addition, some outstanding open source protocol stacks are arranged also, like the oSIP of provider, ReSIProcate and sipX etc. is produced, and is though these open source softwares are free, difficult to safeguard that stability is poor slightly on the commercial use.The invention is intended to utilize free open source protocol stack, and its transaction layer is simplified, only support non-INVITE to send and processing, also be optimized, leave out the relevant complicated part of INVITE at the UA layer.From practical application of the present invention, this simplification can be competent at navigation system and monitoring and alarming system fully.
The simplification of Session Initiation Protocol is mainly concerned with following several aspect:
1, transport layer, RFC3261 has described UDP, TCP, several kinds of host-host protocols of TLS, and that the extensive employing of quilt mainly is UDP; TCP uses less, and TLS then relies on the SSL storehouse, so the part of TCP and TLS management can divest; More meet the location, simple application scenes such as monitoring.
2, transaction layer, complete Session Initiation Protocol is realized the one of four states machine: INVITE client transaction, INVITE service end affairs, non-INVITE client transaction and non-INVITE service end affairs.INVITE relevant issues flow process relative complex wherein, reason are the time delays that SIP request receiving terminal is considered in the requirements of process of INVITE, and typical example is that telephone called end is answered all in phone ringing 60s and allowed.But not INVITE then follows the principle of responding as early as possible, and flow process is simple.SIP transaction status machine relates to timer T1, T2, T4, TimerA-K, totally 14, divest the INVITE relevant issues after, timer will reduce over half, practice thrift system resource greatly.
From Session Initiation Protocol that use to simplify in this aspect of particular communication system; Can directly adopt IANA definition (The Internet Assigned Numbers Authority; The Internet digital distribution mechanism) incident bag also can define again, if do compatiblely with other system; Then need adopt the incident bag of IANA definition, perhaps self-defining incident bag is registered to IANA.Below be that example describes with location monitoring system and monitoring and alarming system:
1, navigation system
Whole system is made up of GPS client and server end.Present increasing terminal, such as mobile phone, automatic navigator etc. all comprise the gps signal receiving chip, and residing address, terminal can be passed through to receive a plurality of satellite-signals and calculate to obtain the location that the Session Initiation Protocol that employing is simplified can be realized terminal location.The request of non-INVITE can move on the protocol stack of this simplification, adopts the mode of subscribing notification (SUBSCRIBE/NOTIFY) can realize that server end is to the location at terminal and certain terminal location to another terminal.
When starting terminal, from flash memory, get access to the address (this can pass through the variety of way setting) of server, and send registration (REGISTER) and wrap server; Server is confirmed after (200OK), and then sends subscription (SUBSCRIBE) to the terminal and wraps the terminal, in subscription package, informs and hopes to obtain the locating information at terminal; Terminal check (200OK); Send first notice (NOTIFY) simultaneously and wrap server, inform current position, server is received back time affirmation (200OK).The process of subscribing to is as shown in Figure 4.
After subscribing to completion, NOTIFY will periodically be sent to server in the terminal, informs present position.Another kind of situation is that certain terminal A wants to understand the present position of B, another terminal; Then can realize through following flow process: terminal A is after successfully being registered to server; Send and subscribe to (SUBSCRIBE), and indicate the information of subscribed person B, when B sends notice (NOTIFY) to server so at every turn to server; Server all can be forwarded to A, and is as shown in Figure 5.
2, monitoring and alarming system
Monitoring and alarming system generally all is the mode of centralized management, such as 119 warning systems, and 110 warning systems etc., the state of monitor terminal takes place when unusual, and central control system can accurately be recognized place and the peripheral information that a situation arises.Seldom move after the general installation in terminal in this system, so can adopt the mode more easier than subscribing notification, if generating change of state, INFO is sent to server end in the terminal.Simultaneously certain, whether server needs the periodic OPTIONS of transmission to arrive the accessibility of terminal with sense terminals, break down and on-call maintenance, and is as shown in Figure 6.
Adopted this invention based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; Its each monitor terminal, controlled terminal and server include simplifies the Session Initiation Protocol stack; This simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer, and described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.Simplify in Session Initiation Protocol stack at this, the part that session is initiated in the Session Initiation Protocol stack divests, but its again with the system compatible of having used complete S IP agreement, thereby simplify the processing of transaction layer and UA layer greatly.Of the present invention based on simplified intelligent localization method of simplifying Session Initiation Protocol and method for supervising in; Only utilize comparatively simple non-INVITE transmission and processing in the Session Initiation Protocol, send and handle, also be optimized at the UA layer simultaneously and do not carry out INVITE; Leave out relevant complicated part with INVITE; Thereby it is make whole protocol stack simple and stable more, be fit to small-sized and micro embedded system applies, and with low cost.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (12)
1. one kind based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; It is characterized in that; Described system comprises at least one monitor terminal, at least one controlled terminal and server, and described each monitor terminal all is connected described server through the network based on Session Initiation Protocol with controlled terminal.
2. according to claim 1 based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; It is characterized in that; Described each monitor terminal, controlled terminal and server include simplifies the Session Initiation Protocol stack, and the simplification Session Initiation Protocol stack of described each monitor terminal and controlled terminal is connected the simplification Session Initiation Protocol stack of described server through described network based on Session Initiation Protocol.
3. according to claim 2 based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; It is characterized in that; Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer, and described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.
4. according to claim 3 based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; It is characterized in that; Described simplification SIP transport layer only comprises UDP host-host protocol unit, and described UDP host-host protocol unit connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively.
5. according to claim 3 based on the simplified intelligent supervisory control system of simplifying Session Initiation Protocol; It is characterized in that; Described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end transaction units, and described non-INVITE client transaction unit all is connected described simplification SIP transport layer with non-INVITE service end transaction units.
6. one kind is utilized the described system of claim 1 to realize it is characterized in that based on the simplified intelligent localization method of simplifying Session Initiation Protocol described server is connected with first monitor terminal, and described method may further comprise the steps:
(11) start said first monitor terminal, described first monitor terminal is written into the address of described server;
(12) described first monitor terminal sends registration packet according to described address to described server;
(13) described server receives after the described registration packet, returns to described first monitor terminal and confirms bag;
(14) described server sends to described first monitor terminal and includes the subscription package that requires locating information;
(15) described first monitor terminal receives after the described subscription package, returns to described server and confirms bag;
(16) described first monitor terminal sends the notification package with positional information to described server;
(17) described server receives after the described notification package, returns to described first monitor terminal and confirms bag.
7. according to claim 6ly it is characterized in that based on the simplified intelligent localization method of simplifying Session Initiation Protocol described method is in step (17) afterwards, and is further comprising the steps of:
(18) described first monitor terminal operation first timer;
When (19) described first timer overflows, return step (16).
8. describedly it is characterized in that based on the simplified intelligent localization method of simplifying Session Initiation Protocol described server also is connected with second monitor terminal according to claim 6 or 7, further comprising the steps of afterwards in described step (17):
(171) described first monitor terminal sends the subscription package with second monitor terminal information to described server;
(172) described server receives from second monitor terminal and has the second monitoring terminal position notification of information bag;
(173) described server has the second monitoring terminal position notification of information bag and is sent to described first monitor terminal described.
9. according to claim 6 or 7 described based on the simplified intelligent localization method of simplifying Session Initiation Protocol; It is characterized in that; Described each monitor terminal and server include simplifies the Session Initiation Protocol stack; Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer; Described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively, and described simplification SIP transport layer only comprises UDP host-host protocol unit, and described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end end transaction units; Described non-INVITE client transaction unit all is connected described UDP host-host protocol unit with non-INVITE service end transaction units, and described UDP host-host protocol unit connects described network based on Session Initiation Protocol.
10. one kind is utilized the described system of claim 1 to realize it is characterized in that based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol described method for supervising may further comprise the steps:
(21) start described controlled terminal, described controlled terminal is written into the address of described server, and begins to detect alarm event;
(22) described controlled terminal sends registration packet according to described address to described server;
(23) described server receives after the described registration packet, returns to described controlled terminal and confirms bag;
(24) described controlled terminal detects alarm event, and will comprise that the message bag of described alarm event information is sent to described server;
(25) described server receives after the described message bag, returns to described controlled terminal and confirms bag.
It is characterized in that based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol described method for supervising is further comprising the steps of afterwards in described step (23) 11. claim 10 is described:
(231) described server operation second timer;
When (232) described second timer overflowed, described server was to described controlled terminal delivery option bag;
(232) described controlled terminal receives after the described option bag, returns to described server and confirms bag.
12. according to claim 10 or 11 described based on the simplified intelligent method for supervising of simplifying Session Initiation Protocol; It is characterized in that; Described controlled terminal and server include simplifies the Session Initiation Protocol stack; Described simplification Session Initiation Protocol stack comprises to be simplified the SIP transport layer and simplifies the SIP transaction layer; Described simplification SIP transport layer connects described simplification SIP transaction layer and described network based on Session Initiation Protocol respectively, and described simplification SIP transport layer only comprises UDP host-host protocol unit, and described simplification SIP transaction layer only comprises non-INVITE client transaction unit and non-INVITE service end transaction units; Described non-INVITE client transaction unit all is connected described UDP host-host protocol unit with non-INVITE service end transaction units, and described UDP host-host protocol unit connects described network based on Session Initiation Protocol.
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| CN103312909A (en) * | 2013-06-06 | 2013-09-18 | 太仓市同维电子有限公司 | Security control method based on Linux embedded platform IP (Internet protocol) phone monitoring system |
| CN103442330A (en) * | 2013-06-28 | 2013-12-11 | 北京小米科技有限责任公司 | Position notification method and device |
| CN105634888A (en) * | 2016-01-25 | 2016-06-01 | 重庆邮电大学 | Smart home cooperative networking communication method and system based on VSOP (Variable Safety Operation Protocol) protocol |
| CN105634888B (en) * | 2016-01-25 | 2019-03-05 | 重庆邮电大学 | A kind of smart home collaboration networking communication method and system based on VSOP agreement |
| CN107968772A (en) * | 2016-10-20 | 2018-04-27 | 中兴通讯股份有限公司 | A kind of method, apparatus and relevant device for realizing Internet of Things application |
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Application publication date: 20120418 |