4G broadband network camera network can solve the problem ?

4G broadband network camera network can solve the problem ?
December 2013 , under a license issued 4G , wireless video surveillance system, or usher in a huge opportunity. All along, the network has been an important factor limiting broadband wireless video surveillance system development. The current 3G bandwidth is limited, high tariffs, limited transmission distance, poor mobility , resulting in a 3G network transmission network environment is difficult to see high-definition picture quality. Can 4G network or breakthrough to solve these problems ?
4G broadband network camera can solve the problem ?
Difficult to promote 3G wireless monitoring
In the 3G era , due to the limitations of the network, wireless video surveillance can only support up to QVGA resolution. Frame rate of around 5-10 frame , stream reaches up to 100Kbps, both in the application of mobile terminals , buses, mobile monitoring , etc., are just on the basis of the existing fixed-line monitoring of the use of wireless monitoring . 3G network coverage is small , currently only involved in some developed cities, due to the balance of different network base station , also caused a 3G network in the transmission signal strength is likely to cause uneven , resulting in the phenomenon of dropped frames , picture cards , resulting in a certain area within the network instability . As wireless monitoring needs more traffic support , funds generated will be not a small number .
Wireless video surveillance system for networking, combined with traditional video surveillance, the formation of a new application mode via 3G, 4G and WIFI wireless communications technology. Users can use a mobile phone or computer as a monitoring terminal device , anytime, anywhere to receive alarm messages and view the surveillance video.
4G or HD video transmission solve network
December 4 , the Ministry for the three operators issued the operating license 4G , 4G began full commercial , which gives wireless video surveillance development to create a good opportunity. What is 4G technology ? From the perspective of technical standards , according to the International Telecommunication Union (ITU) is defined , static transfer rate up to 1Gbps, high-speed mobile state can reach 100Mbps, can be used as one of the technologies of 4G.
Currently, the major international 4G standards are mainly two: the first one is dominated by the United States Intel WiMAX ( Worldwide Interoperability for Microwave Access ) standard , is the farthest distance 4G technology , is currently the fastest growing technology , in a mobile communication environment allows the maximum rate of the downlink and the uplink up to 75Mbps and 75Mbps. Generation of IEEE802.16m (WiMAX2) allows action to receive the downlink and uplink can reach a maximum speed 300Mbps, still pointing at the receiver up to 1Gbps. The second is LTEAdvanced standards, LTE enhanced , fully backward compatible with LTE, LTE is usually through the software upgrade , the upgrade process is similar upgrade from WCDMA to HSPA. Peak rate : Downstream 1Gbps, upstream 500Mbps.
4G network uplink rate of 20Mbps, downlink rate can reach 100Mbps, can effectively support the practical application of high-definition network camera , high-definition wireless video surveillance industry driven strode forward. Real-time video to 720P for example , using the standard H.264MainProfile compression algorithm requires at least 2Mbps HD IP Camera to get "high definition" visual effects , and full 1080P real time video you need 4Mbsp above , 3G seem " powerless ."
From the analysis of the spectral distribution of the information MIIT announced that China Mobile is fully deployed TD-LTE network , while China Unicom and China Telecom are FDD + TD hybrid network , the latter two can reach 1.5 times the speed of the former, covering the same cell when sufficient bandwidth can be provided to a user or device region . Therefore, the current license can be solved 4G network transmission problems.
And some companies on the 4G network transmission can solve the problem , but also to hold reservations. China Security Network Expert Committee , said Cong Lin , 4G licenses issued can not really solve the problem of network transmission . Mr. Lin Cong were analyzed from three reasons , first, the transmission bandwidth. Currently propaganda that is upstream rate of 20Mbps, downlink rate can reach 100Mbps, but actually in use, the use of large groups of customers , and will be facing the same problem 3G era , and ultimately to the speed of the terminal will be unable to meet the IP camera to use. Secondly, the stability and security issues.
Using 4G transmission mode , you need to consider his transfer stability and security, after all, we want to apply in the security monitoring , the requirement is stability and security , the use of 4G transmission scheme , so that we feel is unstable and is easily destroyed criminals . Third , cost. The current license was distributed to several major carriers , so they have to charge an additional fee to the present situation, certainly is flow as a unit, with the network camerahas become increasingly clear , the flow will also be a growing need , consequent costs will also be increasing.
4G network transmission technology can provide a good environment for the development could provide wireless HD video surveillance , but because of the tariff issue, base stations and other issues , 4G development of wireless video surveillance is still restricted. 4G broadband network in a short time is difficult to solve the problem , most of the development of 4G network camera is still in wait and see .
Alarm IP Camera Baby Monitor IP Camera Network Camera P2P IP Camera Network Camera Wireless IP Camera HD IP Camera
From：http://www.vstarcam.com/channel/4G-broadband-network-camera-network-can-solve-the-problem--452.html