Research On The Key Technology Of Enhancing The User Experience Of The Mobile Video Surveillance Based On TD

In recent years, with the rapid development of the national economy, the large-scale construction of3G networks and the quick spread of mobile intelligent terminals, mobile video surveillance business is going into a prosperity period.China Unicom, China Telecom and China Mobile have carried out of mobile video surveillance business. The former two telecom operators carry out well, while the last one is limited by the network capacity of TD.Currently, TD can only support real-time video transmission of low-resolution format such as CIF.The user experience of the mobile video surveillance business based on TD is urgent to be improved.Due to the limitations of the carrier bandwidth and terminal chip, TD network can only provides users with a uplink peak rate of256Kbps with the slot ratio of2to4.At the same time, the performance of video surveillance systems, monitoring terminal and video codec are also factors of the user experience of the mobile vido surveillance business based on TD. Based on the above problems, the research of the key technologies of the user experience of the mobile video surveillance based on TD is of great significance, especially for the business using high bandwidth.This paper analyzes the key technologies of the user experience of mobile video monitoring based on TD, like the performance of monitoring terminal, video codec video surveillance system and TD network, and put forward related optimization methods and solutions. Analyzed the system architecture, the key protocol, and put forward the solutions of the NAT technology. Analyzed the HSUPA, multi-stream technologies and proposed the TD performance optimization solution.With the use of the optimization key technologies of the user experience of mobile video surveillance based on TD, the uplink rate can be increased to872Kbps based on the slot ratio of2to4.The mobile video surveillance system based on TD can provide users with the smooth video image transmission format of DCIF, and greatly improve the user experience.At the end of this paper, the development trend of the mobile video surveillance is discussed that it’s going to be HD, intelligent and open based on the development of the technologies of multimedia, mobile communications and cloud computing.