Implementation Of Secure Video Surveillance Systems Based On The TMS320DM368

Internet of Things for its huge application prospects is widely valued by the governments,academia and industry.The core idea of the Internet of Things is the perception,control,transmission and intelligence,through the technical means to achieve things and objects,people and things,the relationship between people,and thus a larger complex network system based on the sensor network,the Internet and mobile communication network is formed.The information sharing on Internet of Things is closely related to personal life behavior,and the information is highly related to each other.This perception and sensitivity put forward higher requirements for the Internet of things information sharing security and privacy protection.DaVinci chip DM368,using H.264 coding standard,supporting SD/HD video encoding,has been greatly improved on video image clarity and coding efficiency,and supports the commonly used network transmission protocol.According to the actual demand,this paper designs and realizes the network video transmission system based on DM368 to realize the acquisition,coding and real-time transmission of video data.At the same time,the Arnold algorithm is used to scramble the collected image data to achieve the purpose of image information encryption.This paper first introduces the development status and development trend of the Internet of Things technology,as well as the security problems in the Internet of Things system and expounds the purpose and significance of this paper.Then it explains the related technology and hardware platform of the network video transmission system.Then the image scrambling algorithm used in the network video transmission system is described in detail,and the algorithm is simulated in MATLAB.Finally,through the comparison and analysis of the mainstream video transmission system on the market,combined with the actual situation,the overall structure of the network video transmission system is designed.The paper introduces the development platform and the test environment,and we carry on the corresponding test to the network video transmission system under different network condition and analyze the test result.What's more,we summarize the full text design,and put forward some prospects for the future work.