201O International Conference on Computer Application and System Modeling (ICCASM 2010)Mobile Video Surveillance System of...
2010 International Conference on Computer Application and System Modeling (ICCASM 2010)figure 1.,-----------11 SURVEILLANC...
2010 International Conforence on Computer Application and System Modeling (ICCASM 2010)Video Input Interfacef-----------��...
2010 International Conference on Computer Application and System Modeling (ICCASM 2010)IV. CONCLUSION3G network platform i...
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Mobile video surveillance system of3 g network

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Mobile video surveillance system of3 g network

  1. 1. 201O International Conference on Computer Application and System Modeling (ICCASM 2010)Mobile Video Surveillance System of3G Network based on ARM9Hongwei SongDepartment of Computer Science,Shijiazhuang Institute,Shijiazhuang Chinashw_hongwei@sohu.comQian ZhaoSchool of computer science and engerning,Hebei University of TechnologyTianjin ChinaZhaoqian0731@sohu.comXiuyan FengDepartment of computer science ,Shijiazhuang vocational technology instituteshijiazhuang chinaYi ChiDepartment of Computer Technology, ShijiazhuangRailway Institute,Shijiazhuang ChinaHao YangSchool of computer science and Technology,Nanjing Normal UniversityNanjing Jiangsu ChinaAbstract-Mobile video surveillance system based on ARM9uses unique high-bandwidth business applications of 3Gwireless network. The design of hardware and software ofembedded monitoring system is described.The runningplatform of 3G network show that the system can work well inthe circumstances of the limited bandwidth.Keywords-3G network;mobile video surveillane; ARM9I. INTRODUCTIONMobile video surveillance has been envisioned in theliterature as either classical video streaming with anextension over wireless networks, with no processing atremote side but only remote control by a human operator[1-3], or as a special case of distributed wireless sensornetworks in which one type of sensors corresponds to videosensors[4].Video surveillance system has gone through threestages including Simulation Monitoring System, DigitalMonitoring System and Network Monitoring System whichis the most popular, most widely used. Wireless Internetmonitoring system which is based on GPRS (General PacketRadio Service) or CDMA (Code Division Multiple Access)is born when wireless communication service providers startto provide data communications services[5,6].Whether it is CDMA or GPRS network, the supremebandwidth is less than 100kbps. Usually transmitting theacquisition time interval of a few seconds of images, imagecontinuity is poor and can not transfer real-time coherentpicture[7]. The 3G (3rd-generation) is able to provide adiversified, high-quality multimedia services, to achieveseamless global coverage, global roaming capability. In thequasi-static conditions, the rate of 2 Mbps can be achieved,even in high-speed train, the data rate is up to 144kbps, tosupport multimedia services such as audio or video. Based onmobile terminals for mobile video surveillance system will bea hot research as the mobile terminal equipment (such asPDAs, smart phones and car alarm systems, etc.) performanceis continually improved.II. WORKING PRINCIPLE OF THE MOBILE VIDEOSURVEILLANCE SYSTEMThe applying S3C2440A of ARM920T processor systemcan provide a strong driving force for a variety of mobilemultimedia software and an integrated support for MPEG-4format hardware video codec, support for resolutions up toVGA (640x480) MPEG-4 format video codec, maximumframe rate 30f/s. In order to fit the 3G network ,adaptiveMPEG-4[8,9] video encoder is used, it can obtained the highquality video by adjusting encode parameters automatically.Mobile video surveillance systems use GPS receiver forautomatic positioning. GPS receiver module of mobileterminals receives GPS satellite positioning data to calculateits own position. 3G modules send the location, status, alarmof mobile terminal and input information of sensor which iscoded according to the protocol of the agreement to the 3Gnetwork through the SMS. 3G network will receive themobile terminal location information transmitted to themonitoring center of the communication gateway, through thecommunications gateway processed, forwarded to the controlterminal, and the geographic information system (GIS) mapshows location of mobile terminals. Thence control center canbe grasped the dynamic location of mobile terminals clearlyand directly.III. THE SCHEME OF DESIGNING AND REALIZATION FRO THEMOBILE VIDEO SURVEILLANCE SYSTEMA. Construction ofMobile Video SurveillanceMobile Video Surveillance System is composed by themobile terminals, 3G wireless network and monitoring center978-1-4244-7237-6/10/$26.00 ©201O IEEE V6-400
  2. 2. 2010 International Conference on Computer Application and System Modeling (ICCASM 2010)figure 1.,-----------11 SURVEILLANCE CENTER:1 1IGATEWAYI i1r-------,IMOJITOR TERMINA1Figure 1. Structure chart of the Mobile Video Surveillance SystemMobile video capture device mainly consists ofS3C2440A development board, GPS module, 3G module,mobile control unit, sensors and USB camera device, ofwhich S3C2440A as the control center, which is a hub toconnect these devices to send and receive video information.Mobile devices transport two-way information throughcontrol centers and 3G networks.It receives GPS positioningsignals and receives instruction data from monitoring centerwhile mobile terminal location and status information is sentto the monitoring center. 3G network is the data linkbetween the mobile terminal and the control center forinformation exchange. Its functions includes: the accurateGPS positioning information back to the monitoring center,monitoring center information transmission for mobiledevices. The monitoring center consists of communicationgateways and monitoring terminal devices, which completesthe transmitting of all kinds of information. On the one hand,mobile terminals receive the information, and information isdistributed to the monitor terminal computers in order toachieve the monitoring of mobile targets. On the other hand,response monitoring computers issue commands informationto the mobile device, and to the appropriate mobile devices.B. Hardware Design DescriptionIn the aspect of hardware design, system uses SamsungsS3C2440A as embedded processors, and peripheralhardware circuits with embedded core board. Mobilecollection equipment consists mainly of audio and videocapture devices and embedded hardware.The hardwarestructure is shown in figure 2. Audio and video capture andMPEG-4, CAT coding are completed by the S3C2440Aprocessor, and assume the AID conversion, compression,data encryption, wireless sending task. Video signalcollected by Video camera send into the device by the videoinput interface and complete the decoding conversion. Afterdecoding the digital video into the main processing chip, theMPEG-4 hardware encode for video compression coding.Microphone collected audio signals is sent through the audioinput device and complete the PCM coding. Digital audiovia I2S bus sent to ARM processor modules by the CATcoding compression.ARM920T running embedded Linux operating system,user applications can adjust the resolution of MPEG-4encoding, frame rate and bit rate, can also set the audioencoding rate of CAT module. Applications process thecompressed encoded audio and video data to AESencryption, to form the control data transmission and storage,followed by one hand, the embedded Linux drivers to writethe data to the SD card, on the other hand the data inaccordance with the RTP packet network protocol package,through the 3G wireless module sends to the network. Userscan use portable computers in the field through the USBinterface configuration front-end collecting deviceparameters, which are written in Flash chips under thecontrol of ARM. Some parameters become effectiveimmediately after being set up. Some parameters take effectafter re-start the front-end device, depending on thecircumstances. In addition, real-time video data collectedthrough the USB interface, can also be sent directly toportable computers.V6-401
  3. 3. 2010 International Conforence on Computer Application and System Modeling (ICCASM 2010)Video Input Interfacef-----------��3G ModuleAudio Input InterfaceFigure 2. Hardware structure chart of the mobile terminalBack-end receiving equipment is to receive control datafeatures, taking a wireless receiver and data decryption tasks.Just as the front-end collection equipment, it uses embeddedsystem design. The receiving device can directly fromexternal DC power supply on account of applications.C. Transmission Design DescriptionRTP is a point to point or multipoint transmissionservice to provide real-time transport protocol defined inRFC3550. It does not as a separate network layer toachieve.lt can not provide a reliable transport mechanism forsending data packets, and it does not provide flow control orcongestion control, but relies on the RTCP (Real-timeTransport Control Protocol) to provide these services. RTPand RTCP allow them to be used in conjunction witheffective feedback and minimal overhead to achieve optimaltransmission efficiency[10].The part of Transfer completes RTP / RTCP protocolpacking and unpacking, network distribution and dataacquisition[ll]. Based on RTP / UDP / IP protocol stack ofthe MPEG-4 media streaming is the sub-module of networktransmission part of mobile video surveillance system[12]. Ituses Linux-based JRTPLIB RTP library to achieve real-timetransmission. Transmission part of the system architecture isshown in figure 3. The whole structure consists of threemain parts: audio and video data source, video transmitterand video receiver.---------..,Audio and video Data I Video SenderCAT Audio/Compression CodinI .---------,Figure 3. MPEG-4 real-time streaming chart based on RTP / UDP / IPV6-402
  4. 4. 2010 International Conference on Computer Application and System Modeling (ICCASM 2010)IV. CONCLUSION3G network platform in the run test results show that thesystem can work well under the circumstances of limitedbandwidth. The maximum real-time video resolution canachieve VGA (640x480), the maximum frame rate up to30£s in the wired network. In the 3G mobile networkplatforms it can achieve maximum video resolution VGA(640x480), the maximum frame rate up to 25f/s.View of the important position of the mobile streamingmedia applications which based on 3G high data bandwidthbusiness applications, combined with embedded andnetwork video surveillance technology design a 3G-networkfor mobile video surveillance system and studied the systemcomponents and working principle, final, design of thesystems overall framework and the system of the keytechnologies. The system fully take into account thecharacteristics of 3G wireless networks and advantages,andit of effective complement to deficiencies and shortcomingsof the traditional fixed-line video surveillance system. It hasa high reference value for the industry, technology andproduct development and market expansion.REFERENCES[I] C.F.Wong, WL Fung, C.F. Tang, and S.H. Chan, "TCP streamingfor low-delay wireless video,"in Second Int. Conf. Quality of Servicein Heterogeneous WiredlWireless Networks, 200S.[2] D. Agrafiotis, T.K. Chiew, P. Ferre, D. Bull, A. Nix, A. Doufexi,J.Chung-How, and D. Nicholson, "Seamless wireless networking forvideo surveillance applications," in Proc. SPIE-Int. Soc. OpticalEngineering,S68S (Pt. I), 200S, pp. 39--S3.[3] X. Cai, F. Ali, and E. Stipidis, "Mpeg4 over local area mobilesurveillance system," lEE Colloq. (Dig.), vo!. 3-10062, pp. 81-83,2003.[4] Z He, "Resource allocation and performance analysis of wirelessvideo sensors," IEEE Trans. Circuits Syst. Video Techno!., vo!. 16,no. S, pp.S90-S99, 2006.[S] Yang Xing-yu, Wu Hai-bin, Xu Song-qing. "The App lication ofGPRS wireless transmission in remote image monitored controlsystem [J],"Microcomputer Information, 200S, 21 (3) ,pp. 64-66.[6] Hang Zhou, David Suter,"A compact architecture for wireless videosurveillance over CDMA network [A]," In: Proceedings of IEEEInternational Conference on Video and Signal BasedSurveillance,2006 [C] Sydney, Australia, 2006, II,pp.102-107.[7] Xie Hong-hua,Lu Yi-qin,Lv Jin,"The designing of High-qualityreal-time video surveillance system based on 3G wirelessnetwor[J],"Computer Applications,2007,24(lO),pp.313-317[8] ISOIIEC 14496-2, Generic Coding of Audio-Visual Objects- Part 2:Visual, 1999.[9] T.Wiegand (ed.),"Final Committee Draft: Editors ProposedRevisions,"Joint Video Team(JVT)of ISOIIEC MPEG and ITU-TVCEG, JVT-FIOO, February 2003.[10] Liu Zhi-dan,Wang Hong-yuan,."The researching of MPEG-4 videotransmission strategy based on RTP [J],"Cable TelevisionTechnology , 2006(7),pp.33-36.[II] ISOIIEC 14496-2:2000,Information Technology- Coding ofaudiovisualobjects- Part 2: Visual[S]. 2000.[12] Zhang Wan-fang,Su Hong-gen, "Stream media files of the Real-timeTransport Protocol MPEG- 4 based on RTPIUDP/IP[J]," ComputerEngineering and Designing, 2004, 2S(8),pp.1409-1410V6-403

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