CN101635978A - Multimode multiplexing wireless video route signal transmission method - Google Patents
Multimode multiplexing wireless video route signal transmission method Download PDFInfo
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- CN101635978A CN101635978A CN200910027377A CN200910027377A CN101635978A CN 101635978 A CN101635978 A CN 101635978A CN 200910027377 A CN200910027377 A CN 200910027377A CN 200910027377 A CN200910027377 A CN 200910027377A CN 101635978 A CN101635978 A CN 101635978A
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Abstract
The invention discloses a multimode multiplexing wireless video route signal transmission method, comprising a communication protocol discrimination program module. The method comprises the following steps: compressing video-audio data transmitted by a data acquisition end, then transmitting the video-audio data in a wireless mode by single or multimode communication protocol through a single or multipath data module according to the configuration files with system default or artificial setting, and receiving wireless instruction from a background control end, and controlling the operation of front-end machines and operation of software. The multimode multiplexing wireless video route signal transmission method has the advantages of greatly improving reusability of the equipment, reducing the repeated investment of the enterprises, increasing the fastness and stability of data transmission, improving easy maintenance and having flexible system upgrade.
Description
Technical field
The present invention proposes a kind of wireless video route signal transmission method, especially a kind of multimode multiplexing wireless video route signal transmission method.
Background technology
In recent years, along with the develop rapidly of computer, network and wireless communication technology, the video monitoring technology also has significant progress.What video monitoring system was mainly released abroad is numerically controlled analog video monitoring and digital video monitoring two series products.Very ripe, the stable performance of the former technical development, and in practical engineering application, particularly particularly extensive in large and medium-sized video monitoring application in engineering; The latter is the novel video monitoring system with computer technology and image/video boil down to core that emerges recently, and this system has solved analogue system part drawback and emerged rapidly, but still needs further to improve and development.Front end is integrated, video digitizer, monitor networkization, system integration are the developing direction that video monitoring system is generally acknowledged, so two characteristics of maximum of video monitoring development at present are exactly digitlization and networking.
Wireless video monitoring system will be that radio network technique is used one of maximum field.Product can be realized sound, image, video and various alarm signal remote collection, video encoding and encapsulation very like a cork, and by wireless network transmissions to the business monitoring platform, people can in time see the information of the camera head monitor of own care by computer or mobile phone.
The defective of prior art is: existing wireless monitor platform is to adopt a certain wireless communication standard mostly, 3G network for example, the GSM network carries out radio communication, wireless communication module generally is built in the monitoring client device interior, be difficult for changing, the corresponding a kind of background monitoring end of a kind of wireless communication standard is changed headend equipment and just must be changed background devices simultaneously, changes radio communication operator and just must change a whole set of supervisory control system.Current in the wireless communication standard complexity, this method is given renewal of the equipment, upgrading, monitor supervision platform is changed and is brought great ineffective activity, increased the cost of enterprises and institutions greatly, and transfer of data is subjected to the restriction of single communication base station, and transmission speed and quality can not get guaranteeing the Information Security fragility.
Summary of the invention
The objective of the invention is at present wireless monitoring equipment network upgrade, equipment replacement cost height, transfer of data is slow, be subjected to wireless telecommunications operator to influence problems such as big, adopt modularized design, invent a kind of multimode multiplexing that has, can select wireless channel and combination thereof arbitrarily, supported the wireless video route signal transmission method of most communication protocols in the market.
Technical scheme of the present invention is:
1) support multiple communication mode, the whole network agreement is supported: support to insert GSMGPRS/EDGE, WCDMA, TD-SCDMA, CDMA20001X/EVDO multiple network;
2) different channels multiplex technique: the multimode data module can transmit data individually or simultaneously, is combined into initial data on the backstage;
3) select communication channel to adopt system default and user oneself to set the mode of allocation list, whether each communication channel of system's test data module when starting unimpeded and transmission speed, and decision sends regular during in order to transfer of data;
4) plug-in according to the characteristics and the network condition of data flow, is selected suitable transmission rule automatically, and splitting traffic is given suitable channel allocation of packets, guarantees that data flow is complete, sends fast.
Beneficial effect of the present invention:
Benefit of the present invention is to support multiple communication network protocol, has significantly reduced the enterprise upgrading investment, and the multimode multiplexing pattern can increase data bandwidth and transmission speed with customer requirements, guarantees transmission reliability.
Description of drawings
Be described in further detail below in conjunction with the enforcement of accompanying drawing this technical scheme:
Fig. 1 is the wireless video monitoring system configuration diagram
Fig. 2 is the program flow diagram of wireless video monitoring encoder
Fig. 3 business processing flow figure
Embodiment
Fig. 1 is the wireless video monitoring system configuration diagram, has represented the whole framework of wireless video monitoring.
Service sub-system (SMG/PMS) is responsible for by RGM Manager control wireless video monitoring encoder, obtain video or pictorial information from picture servers (the normally logical server of a Daepori) and SS (streaming media server, normally a high-performance server).
Wireless video monitoring encoder and registrar (RGMM, normally a Daepori leads to server) register, (RGMA) reaches the standard grade with the trade mark agency server, and it is online to remain valid, configuration synchronization is set up RTSP with the SS streaming media server and is linked, and links with picture servers by ftp, receive the note of short message service center, realize reaching the standard grade and rolling off the production line.
Short message service center receives the note of wireless video monitoring encoder, realizes that alarm function Fig. 2 is the program flow diagram of wireless video monitoring encoder.The overall flow that has represented the wireless video monitoring encoder system.
2.1 reset after the system power-up.
2.2 system power-up (Bootloader) initialization CPU, memory (SDRAM), distribution address space etc.
2.3 system power-up (Bootloader) unzips to the compressed file of linux kernel among the SDRAM, and the compressed file of kernel is left on the Flash memory, reads compressed file during system start-up automatically and decompress(ion) in internal memory.
2.4 the code in the beginning execute store (as SDRAM), storehouse is finished in the linux kernel initialization, the distribution of interruption etc.
2.5 load serial port drive module and USB webcam driver module (as 301 chips), finish the initialization of serial ports and USB mouth
2.6 operation PPP dial-up program selects GSM GPRS/EDGE, WCDMA, TD-SCDMA, CDMA2000 1X/EVDO network to be connected with Internet by configuration file, and by the operation of AT instruction realization to Modem.But the option of user's artificial selection this moment configuration file (for example: select all available channels to send simultaneously, also can select a channel of bandwidth maximum to send, perhaps select one or more channels of signal strength signal intensity maximum), select single or multiplexing each communication channel.
2.7 carry out the business processing flow resume module, finish video monitoring, speech talkback, alarm, cradle head control, picture and upload or the like function.(for example: the data flow greater than 300K/ second sends by evdo (CDMA's is a kind of) module the mode of utilization program default algorithm or user's appointment in data transmission procedure, data flow less than 120K/ second sends by gsm module, also can cut apart big data, data as 400k, passage transmission 200K etc.) the partition data bag sends, and receives instruction from the backstage.
2.8 can receive this underground cable and long-range rolling off the production line.Fig. 3 wireless video monitoring encoder business processing flow figure represents system and supports GSMGPRS/EDGE, WCDMA, TD-SCDMA, CDMA2000 1X/EVDO multiple network, the monitoring of multitasking multi-channel video, and the method for encrypting of storage.
3.1 GSM GPRS/EDGE, the WCDMA that need support by the selection of configuration system, the sort of network of TD-SCDMA, CDMA2000 1X/EVDO, carry out wireless automatic dialing, the business module of wireless video monitoring encoder successfully is created to the TCP Socket of RGMM;
3.2 the business module of wireless video monitoring encoder sends log-on message (REG_REQ) to RGMM, has wherein carried user name, and password (userName, Passwsoprd), current daily record, headend equipment ID information such as (PUID).And the WaitRegRsp timer is set waits for;
3.3RGMM loopback REG_RSP message.Wherein carry registering result, the keep-alive time interval, data such as RGMAIP address/port number;
3.4 the business module of wireless video monitoring encoder is created to the TCPSOCKET. of RGMA;
3.5 after the business module of wireless video monitoring encoder is created successfully to the TCP Socket of RGMA, send the request ONLINE_REQ that reaches the standard grade to RGMA, wherein carried PUID, the IP address of oneself, GUID, information such as keepalive period are successfully to reach the standard grade in RGMA;
3.6RGMA after handling ONLINE_REQ, loopback ONLINE_RSP to professional.Wherein carried the result that reaches the standard grade;
3.7 after the business module of wireless video monitoring encoder is received ONLINE_RSP,, send keep-alive request message ALIVE_REQ to RGMA at once if reach the standard grade successfully, wherein carried the GUID of oneself, be provided with Alive keep-alive timer simultaneously.This message is with timed sending;
3.8RGMA returned ALIVE_RSP;
3.9 the business module of wireless video monitoring encoder is created to the TCPSocket. of RGMM again, and has sent QUERY_SS_ADDRESS_REQ message to RGMM, request obtains the IP address of SS.Wherein carried PUID, GUID, video format (CIF/QCIF, information such as etc).The WaitQuerySSAddressReq timer is set simultaneously;
3.10 having received among the QUERY_SS_ADDRESS_RSP that RGMM returns, the business module of wireless video monitoring encoder contains SSAddress (streaming media server address information), URLResult (the corresponding URL string of each resolution), URL information such as (URL after the encryption);
3.11 after the business module of wireless video monitoring encoder has obtained the IP address of SS, be created to the TCP Socket of SS;
3.12 the Announce message of the business module of wireless video monitoring encoder in SS transmission RTSP agreement wherein carried stream description information SDP.Timer is set: WaitAnnounceRsp;
3.13 the business module of wireless video monitoring encoder has been received the RTSP response of SS: Reply;
3.14 the business module of wireless video monitoring encoder continues to send Setup to SS, contains local RTP/RTCP port numbers among the Setup;
3.15 the business module of wireless video monitoring encoder has been received the Reply response of SS, wherein contains the RTP/RTCP port numbers of SS side, is used for the RTP transmission of encoder to the UDP encapsulation of SS;
3.16 the business module of wireless video monitoring encoder sends Record to SS, expression: everything is ready;
3.17 the business module of wireless video monitoring encoder has been received the RTSPReply message of SS response;
3.18 the business module of wireless video monitoring encoder regularly sends RTSPOption message to SS, carries out keep-alive with SS
3.19 the business module of wireless video monitoring encoder has been received the Reply message of SS response
3.20 when the video of this encoder of user's program request, SS sends SetParameter information to the business module of wireless video monitoring encoder, wherein contains the X_PLay_Control field, indication is Play
3.21 Reply response message of the business module loopback of wireless video monitoring encoder is to SS
3.22 if carried the order that begins to play among the SetParameter, PU will carry out encoding compression to video, and the soldier sends to SS by the RTP bag.So far, video begins to play
3.23 when the user stopped the video of this encoder of program request, SS sent SetParameter information to the business module of wireless video monitoring encoder, wherein contains the X_PLay_Control field, indication is Stop
3.24 Reply response message of the business module loopback of wireless video monitoring encoder is to SS, and stops the transmission of video data RTP.
Claims (4)
1. the wireless video route signal transmission method of a multimode multiplexing, its feature includes following steps:
1) the one or more corresponding SIM card grooves on the dial module of the free one or more insertion wireless video of the SIM card that the is used for communication route of user,
2) each module initialization in the wireless video router, dial module sends each communication channel of AT instruction testing successively according to default configuration or manual configuration, be used to send data according to configuration of default rule selective channel and transmission rule, or the user defines channel agreement by hand and the transmission rule is used to send data
3) the wireless video route is set up TCP according to the channel of selecting with background server or UDP is connected, and obtains routed ip address,
4) the selected after compression channel agreement of signal sent here of data acquisition unit and send rule and send.
2. channel configuration according to claim 1 is characterized in that selecting a channel in the multimode data module, and also the channel that can select all to use simultaneously is multiplexed.
3. transmission according to claim 1 rule is characterized in that according to the size of data flow and the fail safe of transmission, and the specific requirement of integrality is cut apart transfer of data after the packing by the bandwidth of the 0%--99% of built-in algorithms selective channel bandwidth.
4. multimode multiplexing method for transmitting signals according to claim 1, acquired signal packet are finished at the streaming media server on monitoring backstage and are repackaged into initial data.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103188753A (en) * | 2011-12-27 | 2013-07-03 | 中国移动通信集团山东有限公司 | Method and device for data transmission based on different links between heterogeneous networks |
| CN103561414A (en) * | 2013-09-23 | 2014-02-05 | 深圳酷派技术有限公司 | Terminal and multi-channel data transmission method |
| CN103916517A (en) * | 2012-12-30 | 2014-07-09 | 航天信息股份有限公司 | Method and apparatus for implementing GSM support in android system |
| CN103974088A (en) * | 2013-01-28 | 2014-08-06 | 杭州海康威视数字技术股份有限公司 | Data reuse method and system |
| CN104683452A (en) * | 2015-02-09 | 2015-06-03 | 深圳酷派技术有限公司 | Data downloading method, server and multi-system mobile terminal |
| CN105376754A (en) * | 2015-11-30 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Method for testing number of connectable wireless users of router |
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2009
- 2009-05-31 CN CN200910027377A patent/CN101635978A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103188753A (en) * | 2011-12-27 | 2013-07-03 | 中国移动通信集团山东有限公司 | Method and device for data transmission based on different links between heterogeneous networks |
| CN103188753B (en) * | 2011-12-27 | 2016-05-25 | 中国移动通信集团山东有限公司 | Carry out method and the device of transfer of data based on different links between heterogeneous network |
| CN103916517A (en) * | 2012-12-30 | 2014-07-09 | 航天信息股份有限公司 | Method and apparatus for implementing GSM support in android system |
| CN103916517B (en) * | 2012-12-30 | 2016-06-29 | 航天信息股份有限公司 | A kind of method and apparatus realizing GSM support in Android system |
| CN103974088A (en) * | 2013-01-28 | 2014-08-06 | 杭州海康威视数字技术股份有限公司 | Data reuse method and system |
| CN103974088B (en) * | 2013-01-28 | 2017-05-10 | 杭州海康威视数字技术股份有限公司 | Data reuse method and system |
| CN103561414A (en) * | 2013-09-23 | 2014-02-05 | 深圳酷派技术有限公司 | Terminal and multi-channel data transmission method |
| CN103561414B (en) * | 2013-09-23 | 2015-11-04 | 深圳酷派技术有限公司 | terminal and multi-channel data transmission method |
| CN104683452A (en) * | 2015-02-09 | 2015-06-03 | 深圳酷派技术有限公司 | Data downloading method, server and multi-system mobile terminal |
| CN104683452B (en) * | 2015-02-09 | 2018-11-06 | 深圳酷派技术有限公司 | A kind of data download method, server and multisystem mobile terminal |
| CN105376754A (en) * | 2015-11-30 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Method for testing number of connectable wireless users of router |
| CN105376754B (en) * | 2015-11-30 | 2019-10-11 | 上海斐讯数据通信技术有限公司 | A kind of router can connect the test method of wireless user's number |
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Application publication date: 20100127 |