CN103067687B - Location based service (LBS)-based method and system of mobile video communication - Google Patents
Location based service (LBS)-based method and system of mobile video communication Download PDFInfo
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- CN103067687B CN103067687B CN201210563992.XA CN201210563992A CN103067687B CN 103067687 B CN103067687 B CN 103067687B CN 201210563992 A CN201210563992 A CN 201210563992A CN 103067687 B CN103067687 B CN 103067687B
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Abstract
The utility model discloses a location based service (LBS)-based method and a system of mobile video communication. The LBS-based method and the system of the mobile video communication is characterized in that an Android system serves as a foundation, a subject internet protocol (SIP) of LBS and voice over internet phone (VOIP) serves as a support, wireless fidelity (WIFI) wireless network is combined, the video communication based on the SIP is achieved on the Android system. The LBS-based method and the system of mobile video communication have the advantages of being simple in structure, convenient to use and good in promotion value.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of mobile video communication method and system.
Background technology
With the continuous maturation of video communication technology, video communication terminal is no longer limited to computer, and mobile phone, phone, monitoring system etc. all have been able to carry out at any time video calling, thus significantly having widened the range of application of video communication.At present, popular video communication software has QQ, skype, UUcall, redvip, rice chat etc..But these communication software manufacturers are separate, especially video communication lacks unified standard, make mutual transmission information between various communication systems more difficult, as AOL and Yahoo, MSN and AOL, MSN and QQ etc., the difficulty of their intercommunication is larger, therefore, also become the bottleneck of video communication.During this time, a unified agreement just seems increasingly important, and this uniform protocol should be used for the Simple Mail Transfer protocol of E-mail, Web and voice flow（SMTP）, HTTP and real-time protocol (RTP)（RTP）Deng IM application.LBS（Location Based service）Mainly pass through 2G, 3G wireless network or other outside positioning mode, such as GPS, A-GPS of telecommunications industry mobile operator, to obtain the positional information of mobile phone users, to support that the next user provides the business model of various value-added services in network of relation platform.It is the developing direction of the whole communications field that LBS is combined with mobile video communication system, but, at home, mobile video communication is also in primary developing stage, the 3G wireless network of telecommunications industry mobile operator typically can only be relied on, there is the problems such as communication process is delayed, and cost of use is high.
Content of the invention
The purpose of the present invention is exactly that the one kind providing to solve the deficiency of prior art is easy to use, and expense is low, flexible operation based on LBS mobile video communication method.
It is a further object of the present invention to provide a kind of be based on LBS mobile video communication system.
The present invention is to realize above-mentioned purpose using following technical solution：A kind of LBS mobile video communication method that is based on is it is characterised in that it is based on android system, with LBS and VOIP（The networking telephone）Session Initiation Protocol（Session initiation protocol）For relying on, in conjunction with WIFI wireless network, the video communication based on Session Initiation Protocol is realized on android system.
Further illustrating as such scheme, described video communication is first to be interacted from a calling terminal mobile phone with Session Initiation Protocol to its sip agent, sends out call request by Opensips server using INVITE；Opensips server is first observed this and is all talked about the domain name whether being directed to outside, then it will send request to dns server and target domain name resolved to corresponding IP address, and to check the IP address of called side mobile phone in address list be to position this address after the IP address formerly registered；Reuse this address and call request is sent to called side mobile phone；After called side mobile phone receives this sip message, automatically have and can set up RTP with calling terminal mobile phone（RTP）Information required for session.
Before described call setup video communication, calling terminal and called side will first to file user account get Number, and first sign in on identical SIP Server server, user authentication logs in the IP position oneself instantly being used after start.
In described video communication, in call acoustic processing, first with analog-digital converter by simulated sound conversion digital signal, data signal is compressed into after voice, it is packaged into RTP packet to send, after called side receives, automatically the data signal compressed is switched to simulated sound output using analog-digital converter.
In described video communication, latitude and longitude information obtained by its GPS location present position all can be passed to background server by WIFI wireless network by LBS system by calling terminal mobile phone and called side mobile phone, background server is saved in database, calling terminal mobile phone and called side mobile phone all can read this information from server, complete interactive action.
One kind is based on LBS mobile video communication system, it is characterized in that, it includes the communication server, communication customer end, database, and the communication server is made up of Opensips server and Web server, for completing to set up the function of connection, operating database, monitoring client；Communication customer end includes user's registration log-in module and video communication function module, and client application is set up with server end and is connected, and sends newly-built user profile and logon information to server end, and be stored in database after setting up interface channel.
Described server end is set up the connection monitoring particular port ServerSocket, it is responsible for intercepting the connection of client or disconnection demand, it is connected when there being client will set up connection server and create a new thread immediately and set up with client with server, then database is made with corresponding operation again and finally returns result to client；Server end includes typing user profile, modification user profile, searches the data of good friend's database and add good friend to database to the operation of database；Web server is used for recording the latitude and longitude information of client return.
The present invention using the beneficial effect that above-mentioned technical solution can reach is：
The present invention is using installation LBS mobile video communication terminal in Android phone, on the basis of WIFI wireless network transmissions audio frequency, video data is also incorporated wherein, more comply with the custom of people's face-to-face exchange, communicated due to being connected to focus using WIFI, communication cost cost reduces compared with 3G mobile, simultaneously, allow conventional mobile phone terminal obtain IP address, further increase the flexibility of its access network；Coal addition position services LBS, more meets user and requires, user can understand the positional information of good friend at any time.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the system framework figure of the present invention；
Fig. 3 registers sequential chart in the server management system of the present invention；
Fig. 4 logs in sequential chart in the server management system of the present invention；
Fig. 5 is user management sequential chart in the server management system of the present invention；
Fig. 6 is communication sequential chart in the server management system of the present invention；
Fig. 7 is the Video coding FB(flow block) of the present invention；
Fig. 8 is that the video of the present invention decodes block diagram.
Description of reference numerals：1st, the communication server 2, communication customer end 3, database.
Specific embodiment
As Figure 1-Figure 8, the present invention is a kind of is based on LBS mobile video communication method, and it is based on android system, with LBS and VOIP（The networking telephone）Session Initiation Protocol（Session initiation protocol）For relying on, in conjunction with WIFI wireless network, the video communication based on Session Initiation Protocol is realized on android system.Before described call setup video communication, calling terminal and called side will first to file user account get Number, and first sign in on identical SIP Server server, user authentication logs in the IP position oneself instantly being used after start.Video communication is first to be interacted from a calling terminal mobile phone with Session Initiation Protocol to its sip agent, sends out call request by Opensips server using INVITE；Opensips server is first observed this and is all talked about the domain name whether being directed to outside, then it will send request to dns server and target domain name resolved to corresponding IP address, and to check the IP address of called side mobile phone in address list be to position this address after the IP address formerly registered；Reuse this address and call request is sent to called side mobile phone；After called side mobile phone receives this sip message, automatically have and can set up RTP with calling terminal mobile phone（RTP）Information required for session.In described video communication, in call acoustic processing, first with analog-digital converter by simulated sound conversion digital signal, data signal is compressed into after voice, it is packaged into RTP packet to send, after called side receives, automatically the data signal compressed is switched to simulated sound output using analog-digital converter.In video transmitting procedure, calling terminal gathers view data first with mobile phone camera, then each frame data of the camera of acquisition are compressed into H264 form, are written to after coding in mobile phone SDCard, after copy, start output program, produce RTP session, the data that processor is exported passes to the port numbers that the IP address specified is specified, and allows processor to start to transmit, after called side receives data, it is decoded using the decoding program software that android system carries, realize video communication function.Latitude and longitude information obtained by its GPS location present position all can be passed to background server by WIFI wireless network by LBS system by calling terminal mobile phone and called side mobile phone, background server is saved in database, calling terminal mobile phone and called side mobile phone all can read this information from server, complete interactive action.
As shown in Figure 2, a kind of and described based on the corresponding system of LBS mobile video communication method, it includes the communication server 1, communication customer end 2, database 3, the communication server 1 is made up of Opensips server and Web server, for completing to set up the function of connection, operating database, monitoring client；Communication customer end includes user's registration log-in module and video communication function module, and client application is set up with server end and is connected, and sends newly-built user profile and logon information to server end, and be stored in database after setting up interface channel.Server end is set up the connection monitoring particular port ServerSocket, it is responsible for intercepting the connection of client or disconnection demand, it is connected when there being client will set up connection server and create a new thread immediately and set up with client with server, then database is made with corresponding operation again and finally returns result to client；Server end includes typing user profile, modification user profile, searches the data of good friend's database and add good friend to database to the operation of database；Web server is used for recording the latitude and longitude information of client return.
During use, client is it is first determined whether networked, then obtain the latitude and longitude information that the machine is located, the latitude and longitude information of acquisition is sent in background communication server by web service mode and is processed, background communication server obtains correspondence information to be inquired about from database, the information inquiring is returned to mobile terminal of mobile telephone, is shown to and shows on mobile phone interface.
Above-described be only the preferred embodiment of the present invention it is noted that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some deformation and improve, these broadly fall into protection scope of the present invention.
Claims (5)
1. a kind of based on LBS mobile video communication method it is characterised in that it is based on android system, with LBS and
The Session Initiation Protocol of VOIP is to rely on, and in conjunction with WIFI wireless network, realizes the video based on Session Initiation Protocol and lead in android system
Letter；
Video communication is first to be interacted from a calling terminal mobile phone with Session Initiation Protocol to its sip agent, by
Opensips server sends out call request using INVITE；Whether Opensips server is first observed this and is all talked about
It is directed to the domain name of outside, then it will send request to dns server and target domain name is resolved to corresponding IP address,
And to check the IP address of called side mobile phone in address list be to position this address after the IP address formerly registered；Reuse this
Call request is sent to called side mobile phone by individual address；After called side mobile phone receives this sip message, automatically have permissible
Set up the information required for RTP session with calling terminal mobile phone；
In described video communication, gather view data first with mobile phone camera, then that the camera obtaining is every
One frame data are compressed into H264 form, are written in mobile phone SDCard after coding, start output program after copy, produce RTP meeting
Words, the data that processor is exported passes to the port numbers that the IP address specified is specified, and allows processor to start to transmit, called side
After receiving data, it is decoded using the decoding program software that android system carries；
Calling terminal mobile phone and called side mobile phone all can be by LBS system by the warps obtained by its GPS location present position
Latitude information passes to background server by WIFI wireless network, and background server is saved in database, calling terminal mobile phone
All this information can be read from server with called side mobile phone, complete interactive action.
2. according to claim 1 a kind of based on LBS mobile video communication method it is characterised in that in described call setup
Before vertical video communication, calling terminal and called side will first to file user account get Number, and first sign in identical after start
On SIP Server server, user authentication logs in the IP position oneself instantly being used.
3. one kind according to claim 1 is based on LBS mobile video communication method it is characterised in that leading in described video
During letter, in call acoustic processing, first with analog-digital converter by simulated sound conversion digital signal, by data signal pressure
After shortening voice into, it is packaged into RTP packet and sends, after called side receives, automatically will be compressed using analog-digital converter
Data signal switch to simulated sound output.
4. a kind of as described in claim 1-3 based on the corresponding system of LBS mobile video communication method it is characterised in that it
Including the communication server, communication customer end, database, the communication server is made up of Opensips server and Web server, uses
In the function of completing foundation connection, operating database, monitoring client；Communication customer end includes user's registration log-in module and video
Communication function module, client application is set up with server end and is connected, and sends newly-built use to server end after setting up interface channel
Family information and logon information, and be stored in database.
5. according to claim 4 based on the corresponding system of LBS mobile video communication method it is characterised in that described clothes
Business device end is set up the connection monitoring particular port ServerSocket, is responsible for intercepting the connection of client or disconnection demand,
It is connected when there being client will set up connection server and create a new thread immediately and set up with client with server, Ran Houzai
Database is made with corresponding operation and finally returns result to client；Server end includes typing and uses to the operation of database
Family information, modification user profile, the data searching good friend's database and interpolation good friend are to database；Web server is used for remembering
The latitude and longitude information that record client returns.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101309441A (en) * | 2007-05-16 | 2008-11-19 | 北京邮电大学 | Information searching system based on subscriber location and calling center |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101309441A (en) * | 2007-05-16 | 2008-11-19 | 北京邮电大学 | Information searching system based on subscriber location and calling center |
Non-Patent Citations (1)
| Title |
|---|
| Android平台基于LBS的即时通信系统与设计;王建勇，刘飞;《计算机软件光盘与应用》;20120831(第8期);第210页 * |
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