The main features of 3G technology is the ability to provide a convenient, mobile high-speed data communication services, 3G, mainly for security monitoring system to provide rapid deployment, mobile high-speed data transmission services, and security monitoring system, only require higher bandwidth to support the surveillance camera image information transmission, that is to say, 3G and security monitoring systems combined with point wireless transmission of surveillance video. Before the advent of the 3G network services, long-distance transmission of the security monitoring system mainly by cable transmission, including fiber optic point-to-point transmission and cable network transmission, neither off-the-shelf network access point, which can not be laid wireline or the cost of laying lines too high a project site, most by a point-to-point or point-to-multipoint microwave transmission technology, transmission distance of up to tens of kilometers, but these programs works construction cycle is long, high construction costs and maintenance costs later, and how video image information received in the process of moving, there is no real practical solution. 3G network and its terminal module to solve the security system transmission problems in two aspects: image acquisition end ip camera video information is transmitted to the central station, namely the use of the 3G network uplink data channel upload images; two from the central station to the transmission of video information of the user (client), i.e. the use of the image of the "downstream" of the downlink data channel of the 3G network. Security systems combined with 3G network following basic applications: wireless to upload fixed monitoring image monitoring site for some remote location, you can directly use the 3G terminal modules, ip camera monitoring the image is transmitted to the monitoring center station through 3G network very low (only need a 3G terminal module can be), the construction of the transmission system input costs, without incurring the cost of system maintenance, just to pay the operators to use during the communication costs for cheaper communication charges to operators Policy larger. Can really achieve 3G network operators claimed 1.8Mbps upstream bandwidth, using H.264 video encoding protocols can transmit 1 channel of 1.3 million pixels (720P) HD monitor image, video frame rate up to 15 frames / sec , and thus be able to meet the demand for on-site monitoring. At present, many manufacturers have launched embedded 3G terminal module supports 3GPP protocol video encoders and ip camera products. 2.the wireless upload mobile surveillance images, public security, urban management and other government departments as well as electricity, petroleum and other industries have used for on-site disposal and inspections of vehicles, you need to upload the live ip camera surveillance image acquisition in real time to the monitoring center station remote command and scheduling 3G wireless network can be well positioned to meet this demand, many manufacturers have launched Car DVR, is to set the local wireless ip camera video and image remote wireless upload 3G video surveillance equipment in one, a lot of the public security organs have equipment in the the Alarming command vehicle. 3.Released surveillance images of the mobile client, the user only through a computer at a fixed location to see the monitor image monitoring system based on the fixed network, and not anywhere implementation of monitoring, by means of the 3G network, users can laptop wireless Internet access or 3G smart phone at any time to view the monitor image even control the actions of the ip camera. The combination of 3G and the security system will give a number of industries to bring new market opportunities, such as remote monitoring of pipeline / transmission and distribution lines for the construction of the oil pipeline oil theft cases and cases for transmission and distribution lines Daoge cable system, you can effectively solve the crime locations and more in a remote location, human inspections alone can not effectively contain the limitations of these criminal acts; police / urban management and other departments work site enforcement work, relying on the law enforcement in the 3G network site remote interactive monitoring system surveillance images Upload issued and audio and video recordings, public officers in law enforcement on the one hand can save the video recording of the field of law enforcement, the one hand, but also be able to timely upload images to the Command Center to facilitate Command Center dispatch police force to control the vicious developments; 3G and security The combination of the system for monitoring operations services for families and shops market a new turn, users will not only be able to join service by phone to receive home alarm is triggered, anywhere monitoring the situation in the housekeeping, if recognized and confirmed call alarm call or notify the security area to control the scene, the real solution to the issues of interest to the user. Browse through 3G smart phone surveillance images, generally there are two ways to achieve: First, the phone direct access to digital video encoder device supports 3GPP protocol, the need to install client software on the phone, but because of the different devices with different protocols, it is difficult at the same time compatible manufacturers of equipment; alternative to mobile phone users through the platform to provide services, phone View monitor image by accessing the platform server, which requires technological innovation in the development of network video surveillance platform system devices from different manufacturers, masked differences , for mobile phone users to provide a unified, standard video surveillance services, including unified coding services, forwarding services and unified ip camera control. The main problem with the integration of security in current 3G 3G network coverage, network quality and network bandwidth. 3G network's operational time is still relatively short, the network coverage is mainly concentrated in the large and medium-sized cities, which in the eastern city of remote locations that need to use the 3G network is not completely covered, and restrictions of these areas of application, system stability is still relatively poor, often network outages, affecting the confidence of users, network bandwidth is far not reached the theoretical design specifications, only hundreds of K's bandwidth can not meet the requirements of real-time transmission of high-resolution images. Therefore, the combined application of 3G and security systems also need a longer period of time, and depends mainly on the construction process of the 3G network.
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