CN104935817A - Remote video monitoring method based on XMPP protocol and system - Google Patents
Remote video monitoring method based on XMPP protocol and system Download PDFInfo
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Abstract
The invention discloses a remote video monitoring method based on an XMPP protocol and a system. The remote video monitor method comprises steps of 1) transmitting a control order to an XMPP server by a user control terminal through a first XMPP client side, transmitting the control order to a second XMPP client side by the XMPP server, and forwarding the control order to a network camera device by a second XMPP client side, 2) implementing the control order by the network camera device and transmitting an obtained video flow to an WEB server, and 3) making a request to the WEB server by the user control terminal in order to obtain the video flow. The remote video monitor method based on the XMPP protocol is applicable to various network access modes, shields various network access modes of every camera through intranet penetration, and performs remote unified management on the network cameras which are distributed in the wide range wild filed environment.
Description
Technical field
The present invention relates to radio network technique and technical field of video monitoring, particularly a kind of remote video controlling method based on XMPP and system.
Background technology
Along with the high speed development of Internet technology, instant messaging has become a kind of widely used communication mode.Particularly developing rapidly in recent years, the function of instant messaging becomes increasingly abundant, and it is no longer a simple chat tool, and it has developed into the synthesization information platform integrating interchange, information, amusement, music, TV, game, ecommerce etc.Although instant communication software has a lot now, the continuation expansion that also counteracts that timely communication user of can not interconnecting between them.Therefore, even if in the various communication services of present stage, there is no unified standard, under the situation interconnected cannot be realized, and the appearance of XMPP (Extensible Message and presence Protocol) agreement, achieve the intercommunication of whole timely communication service agreement.After having had this agreement, even if the communication service using any one tissue or individual to provide, can both clog-freely exchange with the user of other timely communication service.Even if the Google talk that such as google company releases for 2005 is exactly a communication software based on XMPP.
Wherein, XMPP is a kind of agreement based on XML, and it inherits in XML environment expansionary flexibly.Therefore, the application based on XMPP has superpower extensibility.XMPP after expansion can process the demand of user by the information sending expansion, and sets up on the top of XMPP as content delivering system and the application program such as service based on address.And XMPP contains the software protocol for server end, make it to converse with another, this makes developer more easily set up client applications or prepares system interpolation function to one.XMPP has the following advantage:
1, opening-XMPP be freely, open, disclosed in, and be easy to understand.And in client, server, assembly, source code storehouse etc., all each own multiple realization.
2, standard-Internet Engineering Task group (IETF) by the core XML stream protocol of Jabber with the name of XMPP, be formally classified as real time communication and the Presence technology of accreditation.And the technical specification of XMPP has been defined within RFC 3920 and RFC 3921.Any IM supplier is following under XMPP, all can realize being connected with Google Talk.
3, confirm that available-the first Jabber (present XMPP) technology is Jeremie Miller exploitation in 1998, now quite stable; Hundreds of developer is for XMPP technology and effort.The Internet of today there is ten hundreds of XMPP server running works, and have millions of people to use XMPP instant messaging software.
4, the framework of distributed-XMPP network and Email very alike; XMPP core protocol communication mode first creates stream, an XMPP to transmit XML data stream with TCP, do not have central master server.Anyone XMPP server can running oneself, the real-time communication making individual and tissue can control them is experienced.
The server of 5, safety-any XMPP independent of public XMPP network (such as in Intranet), and can use the secure safety of the technology such as SASL and TLS, has carried in core XMPP technical specification.
6, the power of easily extensible-XML NameSpace can make anyone on the basis of core protocol, build customized function; In order to maintain permeability, common expansion is by XMPP Standards Foundation.
7, the good-XMPP of elasticity is except can be used on the application program of real time communication, network management can also be used in, content is submitted the article, collaborative tools, file-sharing, game, remote system monitoring etc.
8, diversity-by XMPP is built and the company of arrangement real-time application and service and open source code plan are distributed in various field; With XMPP technological development software, the source of resource and support is various, makes you can not sink into by the predicament of " kidnapping ".
And network monitoring system is an important component part in safety technological guard system, it is the extremely strong integrated system of a kind of advanced person, prevention ability.It can be monitored all situations in place by remote control camera and auxiliary equipment (camera lens, The Cloud Terrace etc.) direct viewing thereof; The image in monitored place, sound-content can be sent to Surveillance center simultaneously, make the situation of monitored site very clear.Meanwhile, network monitoring system can also with other safety technological guard system coordinated operations such as burglar alarm, make prevention ability more powerful.Particularly in recent years, the development of multimedia technology and the development of computer picture file processing technology, make network monitoring system realize image warning, in motion tracking, in real time process etc., more have tremendous development, thus make network monitoring system have very important status in whole safety technological guard system.Another feature of network monitoring system is that it can be recorded the image in monitored place and sound whole or in part, so just facilitates condition and important evidence for providing the process of some event in the future.
Traditional network video monitor and control system is applied in the region as densely populated place in the city such as street, community mostly, in recent years, along with the development of radio network technique, the region that wireless network can cover is increasing, and deployed in areas network video monitor and control system becomes possibility on a large scale in the wild.
Traditional network video monitor and control system is deployed in a LAN environment usually, and each network shooting equipment can obtain a fixing IP address, identifies different equipment and carries out data communication as network foundation.And in the wild on a large scale in environment, dispose a local area network (LAN) all unrealistic from installation and maintenance cost, how to utilize the mobile communication network technology such as the existing 2G/3G/4G of Internet Service Provider that can cover field extensive area to be the challenge faced in prior art to dispose a kind of efficient, reliable network video monitor and control system.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of remote video controlling method based on XMPP, thus overcome in the wild on a large scale in environment, each network shooting equipment realizes by the mode of the IP address fixed the more difficult shortcoming that communicates.
For achieving the above object, the invention provides a kind of remote video controlling method based on XMPP, comprise the following steps: 1) user's control end passes through an XMPP client sending controling instruction to XMPP server, described control command is sent to the 2nd XMPP client by described XMPP server, and described control command is forwarded to network shooting equipment by described 2nd XMPP client; 2) network shooting equipment performs described control command, and by gained video stream to WEB server; 3) described user's control end to described WEB server request to obtain described video flowing.
In technique scheme, step 1) described in the 2nd XMPP client by industrial computer, described control command is forwarded to network shooting equipment.
In technique scheme, described industrial computer is connected with described WEB server by WIFI/2G/3G/4G network.
In technique scheme, described network shooting equipment is multiple, a described XMPP client is multiple, described multiple network shooting equipment is corresponding with a described multiple XMPP client respectively, and described user's control end sends described control command by a described XMPP client of corresponding described network shooting equipment.
In technique scheme, described control command comprises: ask the monitor video of certain period, start, shutdown, dormancy, focusing and rotation.
Another object of the present invention is to provide a kind of Active Eyes based on XMPP, thus overcome in the wild on a large scale in environment, each network shooting equipment realizes by the mode of the IP address fixed the more difficult shortcoming that communicates.
For achieving the above object, the invention provides a kind of Active Eyes based on XMPP, comprising: an XMPP client, for user's control end sending controling instruction to XMPP server; XMPP server, for receiving the control command that a described XMPP client sends, and is sent to the 2nd XMPP client by described control command; 2nd XMPP client, for being forwarded to network shooting equipment by described control command; Network shooting equipment, for performing described control command, and by gained video stream to WEB server; WEB server, for receiving described video flowing, and feeds back the request that described user's control end sends the described video flowing of acquisition.
In technique scheme, also comprise industrial computer, be sent to network shooting equipment for the described control command described 2nd XMPP client forwarded.
In technique scheme, described industrial computer is connected with described WEB server by WIFI/2G/3G/4G network.
In technique scheme, described network shooting equipment is multiple, a described XMPP client is multiple, described multiple network shooting equipment is corresponding with a described multiple XMPP client respectively, and described user's control end sends described control command by a described XMPP client of corresponding described network shooting equipment.
In technique scheme, described control command comprises: ask the monitor video of certain period, start, shutdown, dormancy, focusing and rotation.
Compared with prior art, remote video controlling method of the present invention and system, XMPP is adopted to communicate, because XMPP is application layer protocol, the difference that the different network environment of its communication mode maskable bottom causes, can dispose the network environment of network video monitor and control system in the field extensive area covering 2G/3G/4G signal.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is according to the remote video controlling method flow chart based on XMPP of the present invention.
Fig. 2 is the flow chart of the communication control method according to transmission network of the present invention.
Fig. 3 is the flow chart of the control command processing method according to request video of the present invention.
Fig. 4 is the flow chart according to monitor video recording control method of the present invention.
Fig. 5 is the structure chart according to the Active Eyes based on XMPP of the present invention.
Fig. 6 is the deployment diagram according to the Active Eyes based on XMPP of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
As shown in Figure 1, according to a kind of remote video controlling method based on XMPP of the specific embodiment of the invention, comprise the following steps:
Step S100: user's control end is by an XMPP client sending controling instruction to XMPP server, and control command is sent to the 2nd XMPP client by XMPP server, and control command is forwarded to network shooting equipment by the 2nd XMPP client;
Wherein, control command is forwarded to network shooting equipment by industrial computer by the 2nd XMPP client, industrial computer can directly and network shooting equipment carry out transfer of data.Preferably, industrial computer, by WIFI/2G/3G/4G network insertion the Internet, makes it possible to be connected with WEB server; Control command is the form of plain text, and with the encapsulation of XML tag language, control command comprises: ask the monitor video of certain period, start, shutdown, dormancy, focusing and rotation.
Step S102: network shooting equipment performs control command, and by gained video stream to WEB server;
Step S104: user's control end to WEB server request to obtain video flowing.
In step S100, network shooting equipment is multiple, one XMPP client is multiple, one XMPP client is logged in XMPP server by XMPP account number, by setting up the corresponding relation of multiple XMPP account number and multiple network shooting equipment at the database (database server be namely connected with WEB server) of distance host, make multiple network shooting equipment corresponding with a multiple XMPP client respectively, user's control end is by an XMPP client sending controling instruction of map network picture pick-up device.Further, every platform network shooting equipment also can connect an industrial computer respectively, and establish a 2nd XMPP client at every platform industrial computer, and the 2nd XMPP client corresponding with a corresponding XMPP client of network shooting equipment (i.e. the account number of the 2nd XMPP client logs XMPP server and the identical of an XMPP client), make subscription client by an XMPP client corresponding with network shooting equipment, 2nd XMPP client and industrial computer are connected to the network shooting equipment of specifying, wherein, the interconnection network access mode that 2nd XMPP client shielding industrial computer is different, control command is allowed to be sent to each network shooting equipment timely and effectively.
Monitoring remote video control method in this embodiment is described with the method for work flow process of three parts below:
One, based on the Control on Communication of XMPP transmission network
Communication control method of the present invention as shown in Figure 2, shows the transmitting procedure of a control command.The control command for certain network shooting equipment that user's control end sends is provided in the administration interface first provided by WEB server, in database server, XMPP account corresponding to this ID is searched again according to No. ID of the network shooting equipment of specifying, then the XMPP client passed through sends control command to the 2nd XMPP client that objective network picture pick-up device is corresponding, finally by industrial computer, control command is sent to objective network picture pick-up device.Wherein, the present invention adopts agsXMPP class libraries to develop XMPP client on ASP.NET platform, and the work completing XMPP communication here completes by the class of XmppClientConnection by name, needs the main method to such is arranged to be:
// statement is instantiation XmppClientConnection object also
XmppClientConnection xmpp＝new XmppClientConnection()；
// binding logs in asynchronous message process function successfully
xmpp.OnLogin+＝new ObjectHandler(xmpp_OnLogin)；
// log in successfully and automatically send state information
xmpp.AutoPresence＝true；
// automatically solve connection server produced problem
xmpp.AutoResolveConnectServer＝true；
// port numbers is set
xmpp.Port＝5222；
// do not use old Security Socket Layer
xmpp.UseSSL＝false；
The network address of //XMPP server
xmpp.Server＝“”；
//XMPP user name
xmpp.Username＝“”；
//XMPP password
xmpp.Password＝“”；
// open XMPP to connect
xmpp.Open()；
// sending controling instruction, be command content in quotation marks, XMPPUser is target XMPP user name
xmpp.OnLogin+＝delegate(object o){xmpp.Send(new Message(newJid(XMPPUser),MessageType.chat,“”))；}；
// binding accepts message processing function
xmpp.OnMessage+＝new MessageHandler(xmppCon_OnMessage)；
In order to user's control end can be communicated mutually with network shooting equipment, need to establish agreement correspondence in advance, be equivalent to " add good friend " function of instant communication software, whether just can check the other side's account afterwards at any time online and send information.
Because general network shooting equipment is combined by network code module and analog video camera, independent operating system is not had to provide exploitation, therefore need for its configuration industrial computer, industrial computer and industrial control computer, industrial computer runs a subprogram-network shooting device manager, namely the monitor video of supervising the network picture pick-up device can be recorded, and can the corresponding XMPP client of logging in online picture pick-up device, wait-receiving mode control command also processes.
The Intranet through characteristic of native system as can be known from Fig. 6, due in the ordinary course of things, the 2G/3G/4G network that the coverage of WIFI provides than mobile network service provider is little, but the cost disposed is high, therefore network design scheme can be formulated, for each industrial computer selects a kind of networking mode according to concrete actual environment condition.Because XMPP is application layer protocol, its communication mode is not by the impact of bottom-layer network environmental difference, and therefore, the communication mechanism in the present invention has wider adaptability relative to traditional network video monitor and control system.
Two, industrial computer receives and processing controls instruction
Network shooting device manager is the background program developed on .NET platform, keeps running, be in charge of monitor video and the wait-receiving mode processing controls instruction of network shooting equipment on industrial computer backstage.Wherein, the idiographic flow of also processing controls instruction is received as shown in Figure 3:
Due within the system; control command is the character string with the encapsulation of XML tag language; comprise the request monitor video of up-to-date a minute and comprised, stop the phase of history video of time; or send the control commands such as start, shutdown, dormancy, focusing, rotation; therefore, obtain the control command that user's control end sends over from the 2nd XMPP client logged in after, first instruction identifying operation to be done.If what receive is common action directive, then the direct api interface by network shooting equipment sends to network shooting equipment to perform, if what receive is request video control command, then what judge request is real-time monitor video or history monitor video.The control command form of real-time monitor video is such as asked to be:
<？xml version＝"1.0"encoding＝"utf-8"？>
<XML>
<OTBS>1</OTBS>
<REQID></REQID>
</XML>
Parameter be described as follows table:
| Parameter name | Type | Annotation |
| OTBS | Int | Function code, real-time video request is 1 |
| REQID | Int | The ID once asked, is used for distinguishing different requests |
Due to the mode real-time recording monitor video that network shooting device manager is with video flowing, take user operation satisfaction and network service cost factor into consideration, user's control end often asks once in real time monitor video (i.e. the monitor video of up-to-date a minute), and industrial computer just intercepts the monitor video calculating totally one minute length forward apart from current time point and returns from the video flowing of current recording.User can be allowed like this to have relatively satisfied viewing experience, under 2G/3G/4G network environment, the data volume of communication can be saved again.
If what receive is the control command of request history monitor video, then to rise according to the video comprised in instruction, only retrieve video file in the time to the hard disk of industrial computer.Because network shooting device manager regularly can carry out integration splicing management to history video, therefore likely need that segmentation is carried out to history video file and intercept.
Consider the problem of amount of communication data, after having intercepted monitor video file, needed to carry out format conversion and image quality adjustment to it, after having processed, can Web server be back to.
Three, industrial computer (i.e. network shooting device manager) management and monitoring video
Industrial computer, by the local directly-connected network picture pick-up device of twisted-pair feeder, ensures that network shooting device manager can carry out good communication with network shooting equipment.Wherein, the method for recording of monitor video is as shown in Figure 4:
This program is connected to network shooting equipment at initial phase by the api interface that network shooting equipment provides and starts to obtain monitoring video flow.
Open sub-thread in addition at the process need recorded and monitor XMPP network communications port, to obtain control command request.
In order to effectively manage monitor video file, in program, need configuration two timers.One of them break period is set to 2 hours, main task has been segmentation to monitoring video flow and preservation task, if received the control command thus divided scrappy video file out of request real-time video in these 2 hours, also need to splice these files at this, this video file of 2 hours is integrated into a video file, is kept at hard disk.The terminal time of another timer is set to 1 day, main task is that all video files that this day records are spliced arrangement, again in addition, due to the restriction of hard disk size, need to clear up expired video, exact date, length can be arranged flexibly according to hard disk size.
In sum, remote video controlling method of the present invention, XMPP is adopted to communicate, because XMPP is application layer protocol, the difference that the different network environment of its communication mode maskable bottom causes, can dispose the network environment of network video monitor and control system in the field extensive area covering 2G/3G/4G signal.And be applicable to various network access modes, penetrated by Intranet, shield the network access mode that every platform network shooting equipment is different, long-range unified management can be carried out to the network shooting equipment of field any wide-area deployment.
As shown in Figure 5, according to a kind of Active Eyes based on XMPP of the specific embodiment of the invention, comprising:
One XMPP client 20, for user's control end 10 sending controling instruction to XMPP server 40;
XMPP server 40, for receiving the control command that an XMPP client 20 sends, and is sent to the 2nd XMPP client 60 by control command; Control command comprises: ask the monitor video of certain period, start, shutdown, dormancy, focusing and rotation.
2nd XMPP client 60, for being forwarded to network shooting equipment 70 by control command; Wherein, control command is forwarded to network shooting equipment 70 by industrial computer 50 by the 2nd XMPP client 60, and industrial computer 50 is connected with WEB server 30 by WIFI/2G/3G/4G network.
Network shooting equipment 70, for performing control command, and by gained video stream to WEB server 30.
WEB server 30, for receiver, video stream, and feedback user control end 10 sends the request obtaining video flowing.
In this embodiment, network shooting equipment 70 is multiple, one XMPP client 20 is multiple, and multiple network shooting equipment 70 is corresponding with a multiple XMPP client 20 respectively, and user's control end 10 is by XMPP client 20 sending controling instruction of map network picture pick-up device 70.
More specifically, as shown in Figure 6, be divided into:
1, database server (this database server is the database of WEB server): for preserving the information of whole system, comprise account information, mapping relations, video file catalogue etc.;
2, WEB server 30: build management interface, can the inner all-network picture pick-up device of management system, checking monitoring video recording etc., and internal operation XMPP client acquiescence logs in XMPP server, for sending, receives control command;
3, XMPP server 40: the network service maintaining whole system, assume responsibility for XMPP client-information records, the routing function of connection management and information simultaneously;
4, network shooting equipment 70: a kind of video camera of new generation produced in conjunction with traditional cameras and network technology, image can be reached the earth other end by network by it, and the viewer of far-end does not need to use any professional software, as long as the web browser of standard (as " Microsoft IE or Netscape) its image can be monitored.Network shooting equipment is generally made up of parts such as camera lens, image, sound transducer, A/D converter, image, sound, controller network server, external alert, control interfaces.For monitoring place, giving tacit consent to and video recording be stored in local industrial computer, can according to receive the control command process of request video and return video.
5, industrial computer 50: be specially industry spot and the computer that designs, configurable WIFI, 2G/3G/4G card connecting Internet, be deployed near network shooting equipment, can control command be received and be sent to network shooting equipment, if provide services on the Internet Deng network shooting equipment, and preserve network shooting device history videograph in this locality; Wherein, the network shooting device manager of the monitor video and wait-receiving mode processing controls instruction of being in charge of network shooting equipment operates on industrial computer, form according to the api interface exploitation that network shooting equipment provides, to network shooting equipment sending controling instruction, real-time video recording can be kept at local hard drive and manage.And internal operation XMPP client, acquiescence connects XMPP server, can receive control command that XMPP client sends and transform, sending to network shooting equipment.
In sum, Active Eyes of the present invention, XMPP is adopted to communicate, because XMPP is application layer protocol, the difference that the different network environment of its communication mode maskable bottom causes, can dispose the network environment of network video monitor and control system in the field extensive area covering 2G/3G/4G signal.And be applicable to various network access modes, penetrated by Intranet, shield the network access mode that every platform network shooting equipment is different, long-range unified management can be carried out to the network shooting equipment of field any wide-area deployment.
The present invention can have multiple multi-form embodiment; above for Fig. 1-Fig. 6 by reference to the accompanying drawings to technical scheme of the present invention explanation for example; this does not also mean that the instantiation that the present invention applies can only be confined in specific flow process or example structure; those of ordinary skill in the art should understand; specific embodiments provided above is some examples in multiple its preferred usage, and the execution mode of any embodiment the claims in the present invention all should within technical solution of the present invention scope required for protection.
One of ordinary skill in the art will appreciate that: all or part of step realizing said apparatus embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. based on a remote video controlling method for XMPP, it is characterized in that, comprise the following steps:
1) user's control end passes through an XMPP client sending controling instruction to XMPP server, described control command is sent to the 2nd XMPP client by described XMPP server, and described control command is forwarded to network shooting equipment by described 2nd XMPP client;
2) network shooting equipment performs described control command, and by gained video stream to WEB server;
3) described user's control end to described WEB server request to obtain described video flowing.
2. the remote video controlling method based on XMPP according to claim 1, is characterized in that, step 1) described in the 2nd XMPP client by industrial computer, described control command is forwarded to network shooting equipment.
3. the remote video controlling method based on XMPP according to claim 2, is characterized in that, described industrial computer is connected with described WEB server by WIFI/2G/3G/4G network.
4. the remote video controlling method based on XMPP according to claim 1, it is characterized in that, described network shooting equipment is multiple, a described XMPP client is multiple, described multiple network shooting equipment is corresponding with a described multiple XMPP client respectively, and described user's control end sends described control command by a described XMPP client of corresponding described network shooting equipment.
5. the remote video controlling method based on XMPP according to claim 1, is characterized in that, described control command comprises: ask the monitor video of certain period, start, shutdown, dormancy, focusing and rotation.
6. based on an Active Eyes for XMPP, it is characterized in that, comprising:
One XMPP client, for user's control end sending controling instruction to XMPP server;
XMPP server, for receiving the control command that a described XMPP client sends, and is sent to the 2nd XMPP client by described control command;
2nd XMPP client, for being forwarded to network shooting equipment by described control command;
Network shooting equipment, for performing described control command, and by gained video stream to WEB server;
WEB server, for receiving described video flowing, and feeds back the request that described user's control end sends the described video flowing of acquisition.
7. the Active Eyes based on XMPP according to claim 6, is characterized in that, also comprise industrial computer, is sent to network shooting equipment for the described control command described 2nd XMPP client forwarded.
8. the Active Eyes based on XMPP according to claim 7, is characterized in that, described industrial computer is connected with described WEB server by WIFI/2G/3G/4G network.
9. the Active Eyes based on XMPP according to claim 6, it is characterized in that, described network shooting equipment is multiple, a described XMPP client is multiple, described multiple network shooting equipment is corresponding with a described multiple XMPP client respectively, and described user's control end sends described control command by a described XMPP client of corresponding described network shooting equipment.
10. the Active Eyes based on XMPP according to claim 6, is characterized in that, described control command comprises: ask the monitor video of certain period, start, shutdown, dormancy, focusing and rotation.
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| CN103516708A (en) * | 2012-12-12 | 2014-01-15 | Tcl集团股份有限公司 | Equipment control method and system based on XMPP |
| CN104079617A (en) * | 2013-03-29 | 2014-10-01 | 联想(北京)有限公司 | Terminal device and method for same |
| CN103354595A (en) * | 2013-07-12 | 2013-10-16 | 何建亿 | P2P (Point to Point) network camera system realizing zero configuration for users |
| CN104243477A (en) * | 2014-09-19 | 2014-12-24 | 山东乾云启创信息科技有限公司 | Security industry data collecting method and system implemented on basis of XMPP |
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| CN106453683A (en) * | 2016-10-17 | 2017-02-22 | 济南浪潮高新科技投资发展有限公司 | Method for centralized access management of cameras |
| CN108206818A (en) * | 2016-12-20 | 2018-06-26 | 中移（杭州）信息技术有限公司 | A kind of message system login method, entering device and server of instant message |
| CN108234292A (en) * | 2017-12-28 | 2018-06-29 | 中国联合网络通信集团有限公司 | Communication system and communication means |
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