Research And Implementation Of Video Transmission And Burn After Reading In Intelligent Connected Vehicles

The number of vehicles has increased dramatically.Issues such as road safety,traffic congestion,energy shortages and environmental pollution have affected people’s lives.Fortunately,at the same time,with the development of high technology,the integration of electronics,information and communication technologies with the automobile industry has accelerated.The development of intelligent and networked automobile products has been proven to effectively deal with the above problems.Furthermore,in the process of the development of intelligent terminal,the efficient and safe transmission of information is the basis for the further development of the Intelligent Connected Vehicles.The information includes textual information and video information.In particular,the importance of video information is self-evident.Every day,visual perception Information accounts for about 70%of the total amount of external information,and visual information with a large amount of information,intuitive,certainty and other characteristics that more easily perceived and applied by people.At present,there are many routing algorithms for the efficient transmission of the texts of Intelligent Connected Vehicles.The research on video transmission is also in full swing.However,most of the research is at the software simulation level without any in-depth analysis on the specific scenarios.Under the actual argument analysis.This thesis has done a deep research on the above problems,the main work is as follows:Firstly,this paper analyzes the information routing scenario of vehicular ad hoc networks,and focuses on the scene where one vehicle need to transmit warning information quickly to vehicles in a region in the case of road congestion.An omni-directional routing algorithm based on geographic location is proposed.Completed its development and testing on the platform of Intelligent Connected Vehicles.Then analyzing the video transmission and splicing related technologies systematically.Comparing the advantages and disadvantages of different key technologies in the same field and applicable scenarios,such as H264 and H263 in the field of video codec,RTP,TCP,UDP protocol and IEEE 802.11p of vehicle-to-vehicle in the field of network transmission,Video mosaic feature point detection which accomplished by ORB algorithm or SURF algorithm.Through the analysis of advantages and disadvantages,this paper select and implement algorithms suitable for a particular scenario,and then build a vehicle information transmission system.Furthermore,considering the security of information transmission,the technology of "burn after reading" is introduced into the field of networked vehicles to protect the privacy and data security of user information,to prevent the retransmission of user data and further lead to malicious analysis of user behavior.In the end,this paper uses the established platform to realize the text information routing and multi-point video distribution system,and carries out the scene test in the Beijing University of Posts and Telecommunications.Compared with other routing algorithms,this paper mainly evaluates the text information in the Intelligent Connected Vehicles at different distances,routing performance under different hops.The routing algorithm in this paper transmits information to a number of nodes in the region scene with high reliability,high coverage,low latency characteristics and then tested the four cars through pad and intelligent terminal in the car point-to-point video transmission scene.Finally making video stitch by computers and achieve 15ms/frame.