CN103347001A - Novel serverless mobile terminal conference demonstration method - Google Patents
Novel serverless mobile terminal conference demonstration method Download PDFInfo
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- CN103347001A CN103347001A CN2013102308440A CN201310230844A CN103347001A CN 103347001 A CN103347001 A CN 103347001A CN 2013102308440 A CN2013102308440 A CN 2013102308440A CN 201310230844 A CN201310230844 A CN 201310230844A CN 103347001 A CN103347001 A CN 103347001A
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Abstract
The invention relates to a novel serverless mobile terminal conference demonstration method. The method relates to mobile terminals, a local WLAN network, an expansion SIP protocol and the P2P technology. The expansion SIP protocol is a signal control protocol of an application layer and used for establishing, modifying and releasing a conversation of one or more participants; the P2P technology is the peer-to-peer technology; the mobile terminals are various smart mobile devices capable of achieving wireless Internet access and used as conference demonstration devices and form network nodes of a P2P network; the local WLAN network is used for achieving connection and communication of the mobile terminals. Establishment and maintenance of the P2P network are carried out, and a network platform for conference demonstration is provided. The network platform for conference demonstration is established through a demonstration system at zero cost, and equipment like a projector is not needed. The method has the advantages that the demonstration system can be quickly established, and the demonstration process can be accessed when the mobile terminals are accessed to the same local area network.
Description
Technical field
The present invention relates to a kind of network communication method, be specifically related to the portable terminal meeting demenstration method of a kind of novel serverless.
Background technology
Development along with communication and projection display technique, various long-range and local meeting demo systems emerge in an endless stream, each big science-and-technology enterprise is participated, be no lack of large-scale communication equipment provider and computer equipment enterprise, directly the communication technology and the hardware resource of utilization itself provide the net meeting system based on C/S and B/S.Meeting demo system for localization mainly is made of PC and display device, and the controller integrated induction element of meeting or the photophore of these equipment are realized human-computer interaction and light referential function.Prior art realizes that based on the C/S framework access of tele-conferencing system or local meeting room carry out the meeting demonstration, needs projecting apparatus and PC equipment to set up the platform of meeting demonstration, seldom supports portable terminal.Need infusion of financial resources build the platform of meeting demonstration, the quality of demonstration effect depends on the running status of projector equipment and the quality of environment of living in, and it is more that the demonstration effect is subjected to the interference ratio of equipment and environment, and the visual range that the demonstration projection provides is smaller.Demonstration document will carry out mail distribution in advance.
In today that the portable terminal kind is enriched, intelligent, the mobile phone of screen enlarging and pad terminal emerge in an endless stream, and by this large-size screen monitors mobile device, provide the meeting demonstration device as smart machines such as iphone, pad, and in ad hoc network, take full advantage of the wireless transmission advantage of portable terminal, set up the network platform of local meeting demonstration, the propelling movement of PPT and presentation process is provided, touch track synchronously, good demonstration interactive experience is provided under the situation of no projecting apparatus and PC equipment.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, the portable terminal meeting demenstration method of a kind of novel serverless has been proposed, this demenstration method is applied to the mature experience of the communications field based on SIP, realize the transmission of P2P data by SIP stack, take full advantage of the advantage of SIP, extra voice conversation function is provided.The expansion sip message.Based on the structure to the P2P network, expand required sip message, simplify the SIP logon mode, realize interconnecting of node and node by self-defined sip message.Establishment and the maintenance of local DHT.Implement foundation and the maintenance of P2P network, the network platform of meeting demonstration is provided, the present invention does not need the function that penetrates of NAT and fire compartment wall, only supports the IP of localization to connect, and improves the speed of transfer of data.
Technical scheme of the present invention is: the portable terminal meeting demenstration method of a kind of novel serverless, comprise portable terminal, local wlan network, the expansion Session Initiation Protocol, the P2P technology, described expansion Session Initiation Protocol is the signaling control protocol of application layer, be used for creating, revise and discharge one or more participants' session, described P2P technology is reciprocity internet technique, described portable terminal is the various intelligent mobile device that can get online without being tethered to a cable, as the meeting demonstration device, constitute P2P network of network node, described local wlan network, the realization portable terminal connects and communicates by letter, the expansion Session Initiation Protocol comprises Session Initiation Protocol and SIP header field, Session Initiation Protocol itself is not supported these characteristics of P2P network, realize the expansion Session Initiation Protocol by definition SIP header field, expansion SIP view comprises sip message, described P2P connects to come connected node by Ad-Hoc, be used for multiple use, the software of various file-sharings, described each portable terminal is regarded the node in the P2P network as, in the P2P network, node can direct-connected node to other, these nodes are that UA acts on behalf of in the expansion Session Initiation Protocol, and then the network environment of the no server of realization, described P2P can both provide registration registrar and act on behalf of the proxy service for each node, for the circulation of SIP signaling provides network support, described P2P comes node in the organization and management P2P network by the DHT distributed hashtable, DHT memory node beacon information, beacon information is obtained by the cryptographic Hash of IP address, the maintenance of DHT distributed hashtable, locating resource, the registered user, set up session, the sip message that all passes through in the expansion Session Initiation Protocol is realized.
The present invention has following beneficial effect:
1) the present invention is set up by the demo system that zero cost drops into, and need not to buy equipment such as projecting apparatus.
2) it is fast that the present invention sets up demo system speed.Only need be connected in the same local area network (LAN) (more than the wireless access bandwidth 54M), can insert presentation process.
3) the present invention does not have the presentation process that goes offline.End-to-end based on serverless, when pushing demo content, the mobile end points of demonstrating as because of the outage shutdown, still can use other online portable terminals (or new terminal that inserts), proceeds the meeting demonstration.
Description of drawings:
Fig. 1 is local area network network topology structure figure;
Fig. 2 is P2P networking network topology structure figure;
Fig. 3 meeting presentation process data flow and control stream.
Embodiment
Extremely shown in Figure 3 referring to Fig. 1, the present invention includes portable terminal, local wlan network, the expansion Session Initiation Protocol, the P2P technology, described expansion Session Initiation Protocol is the signaling control protocol of application layer, be used for creating, revise and discharge one or more participants' session, described P2P technology is reciprocity internet technique, described portable terminal is the various intelligent mobile device that can get online without being tethered to a cable, as the meeting demonstration device, constitute P2P network of network node, described local wlan network, the realization portable terminal connects and communicates by letter, the expansion Session Initiation Protocol comprises Session Initiation Protocol and SIP header field, Session Initiation Protocol itself is not supported these characteristics of P2P network, realize the expansion Session Initiation Protocol by definition SIP header field, expansion SIP view comprises sip message, described P2P connects to come connected node by Ad-Hoc, be used for multiple use, the software of various file-sharings, described each portable terminal is regarded the node in the P2P network as, in the P2P network, node can direct-connected node to other, these nodes are that UA acts on behalf of in the expansion Session Initiation Protocol, and then the network environment of the no server of realization, described P2P can both provide registration registrar and act on behalf of the proxy service for each node, for the circulation of SIP signaling provides network support, described P2P comes node in the organization and management P2P network by the DHT distributed hashtable, DHT memory node beacon information, beacon information is obtained by the cryptographic Hash of IP address, the maintenance of DHT distributed hashtable, locating resource, the registered user, set up session, the sip message that all passes through in the expansion Session Initiation Protocol is realized.
The expansion Session Initiation Protocol is used for creating, revising and discharge one or more participants' session.These sessions can be Internet multimedia conferencing, IP phone or multimedia distribution.The participant of session can communicate by multicast (multicast), netted clean culture (unicast) or both mixtures.An important feature of expansion Session Initiation Protocol is the type that it does not define the session that will set up, and definition managing conversation how only.This flexibility has been arranged, just meaned that also SIP can be used for numerous application and service, comprises interactive entertainment, music and video request program and voice, video and Web meeting.
Described P2P is internet technique, is a kind of network new technology, participant's computing capability and bandwidth in the dependency network, rather than a dependence all accumulates on less several station servers.The P2P network is generally used for connecting to come connected node by Ad Hoc.This class network can be used for multiple use, and various file-sharing softwares have obtained using widely.The P2P technology also is used in the data communication of real-time media business such as similar VoIP.The communication pattern Client/Server, the Browse/Server that are different from other, they are all to be applied as core, in network application server must be arranged, user's request must be finished by application server, and the communication between the user also will be passed through server.Design and the multicast communication mechanism of P2P by " decentralization " does not have special-purpose server, does not have special-purpose work station yet, can direct communication between the user, shared resource, collaborative work.
Specific implementation process is as follows:
Step 1: as shown in Figure 1, based on common local wlan network, set up the connection of each portable terminal physically, the present invention does not do the requirement of network security configuration, proof of identity if desired, the perhaps consideration of network transmission security can be configured wlan device, and this depends on the function of wlan device.
Step 2: as shown in Figure 2, make up the P2P network:
1, newly added node (portable terminal) is sent out MULTICAST SIP REGISTER message.
2, be in node in the network and replied 200OK after, send DHT to newly added node, sort according to IP among the DHT.
3, add among the DHT according to this node IP, and send DHT updating message (self-defined sip message) to network.
4, updating message mails to the front and back adjacent node of new node in DHT.
5, the node in the P2P network is received updating message, according to itself and the relative position of new node in DHT, upwards or send the DHT updating message downwards.
Safeguard the P2P network:
When 1, making up network, upgrade DHT synchronously after, start the maintain message tranmitting data register, adopt the relative time counting mode, do not rely on and influence the clock of each portable terminal own.
2, clock is overtime, and each node cycle sends monitoring online message (self-defined sip message).
3, whether return 200OK message according to adjacent node, upgrade adjacent states, upgrade DHT.
Step 3: as shown in Figure 3, the invention provides portable terminal meeting demenstration method, the DHT according to step 2 is created and safeguarded, implement the meeting presentation process:
1, in the P2P network of setting up, the node that demonstrate sends demonstration request message (self-defined sip message).
2, obtain arbitrary node and confirm to reply, then according to DHT, the bidirectional pushing data begin.
3, receive demonstration node control information, be transferred to each node.
4, demonstration finishes, and sends end (self-defined sip message).
Claims (1)
1. the portable terminal meeting demenstration method of a novel serverless, comprise portable terminal, local wlan network, the expansion Session Initiation Protocol, the P2P technology, described expansion Session Initiation Protocol is the signaling control protocol of application layer, be used for creating, revising and discharge one or more participants' session, described P2P technology is reciprocity internet technique, and described portable terminal is the various intelligent mobile device that can get online without being tethered to a cable, as the meeting demonstration device, constitute P2P network of network node, described local wlan network, the realization portable terminal connects and communicates by letter, and it is characterized in that:
The expansion Session Initiation Protocol comprises Session Initiation Protocol and SIP header field, Session Initiation Protocol itself is not supported these characteristics of P2P network, realize the expansion Session Initiation Protocol by definition SIP header field, expansion SIP view comprises sip message, described P2P connects to come connected node by Ad-Hoc, be used for multiple use, the software of various file-sharings, described each portable terminal is regarded the node in the P2P network as, in the P2P network, node can direct-connected node to other, these nodes are that UA acts on behalf of in the expansion Session Initiation Protocol, and then the network environment of the no server of realization, described P2P can both provide registration registrar and act on behalf of the proxy service for each node, for the circulation of SIP signaling provides network support, described P2P comes node in the organization and management P2P network by the DHT distributed hashtable, DHT memory node beacon information, beacon information is obtained by the cryptographic Hash of IP address, the maintenance of DHT distributed hashtable, locating resource, the registered user, set up session, the sip message that all passes through in the expansion Session Initiation Protocol is realized.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554690A (en) * | 2015-12-23 | 2016-05-04 | 姚伟志 | Point-to-point intelligent equipment management system |
| CN108600687A (en) * | 2018-03-23 | 2018-09-28 | 会领科技（北京）有限公司 | A kind of wireless with no paper conference system |
| CN108881802A (en) * | 2018-07-09 | 2018-11-23 | 深圳市潮流网络技术有限公司 | A kind of demonstration source input method of SIP video conference |
| CN110691331A (en) * | 2019-08-30 | 2020-01-14 | 国家电网有限公司 | Conference demonstration method and device based on Bluetooth mesh technology and terminal equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101471878A (en) * | 2007-12-28 | 2009-07-01 | 华为技术有限公司 | Safety routing method, network system and equipment for peer-to-peer session initiation protocol network |
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2013
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101471878A (en) * | 2007-12-28 | 2009-07-01 | 华为技术有限公司 | Safety routing method, network system and equipment for peer-to-peer session initiation protocol network |
Non-Patent Citations (1)
| Title |
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| 马书亮: "基于分布式哈希表的P2P-SIP覆盖网结构研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554690A (en) * | 2015-12-23 | 2016-05-04 | 姚伟志 | Point-to-point intelligent equipment management system |
| CN108600687A (en) * | 2018-03-23 | 2018-09-28 | 会领科技（北京）有限公司 | A kind of wireless with no paper conference system |
| CN108881802A (en) * | 2018-07-09 | 2018-11-23 | 深圳市潮流网络技术有限公司 | A kind of demonstration source input method of SIP video conference |
| CN110691331A (en) * | 2019-08-30 | 2020-01-14 | 国家电网有限公司 | Conference demonstration method and device based on Bluetooth mesh technology and terminal equipment |
| CN110691331B (en) * | 2019-08-30 | 2021-11-02 | 国家电网有限公司 | Conference demonstration method and device based on Bluetooth mesh technology and terminal equipment |
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Application publication date: 20131009 |