Design And Implementation Of Vehicle Video Surveillance Terminal Based On Iot Technology

With the continuous development of information technology,the application of Internet of Things technology,embedded technology,artificial intelligence and big data in the production and life fields such as logistics management,smart home and traffic control have received extensive attention.Currently,video surveillance systems are in the era of intelligent high-definition video surveillance,achieving high definition,intelligence,integration and networking.This thesis is derived from the “Development of Vehicle Terminal Based on Internet of Things Technology” project of Nanjing Lukou International Airport Technology Co.,Ltd.Aiming at the current demand for precise control of airport special vehicles,this paper designs and implements an on-board video surveillance terminal based on Internet of Things technology.Firstly,according to the system function requirements,the overall scheme of the vehicle video surveillance terminal based on the Internet of Things technology is designed.The terminal includes embedded platform,display user interface,wireless router and camera to realize information collection and statistics,monitoring and scheduling,real-time tracking,status query,video transmission and historical track storage playback and many other functions.Secondly,the hardware system of the vehicle video monitoring terminal is designed and implemented.The terminal hardware system mainly includes a main controller module with a Hi3520 D processor as a core,4G communication module,WIFI communication module,video AD module,positioning module and power module.What’s more,on the basis of setting up a cross-compilation environment,U-Boot porting,Linux kernel porting,root file system construction and communication module porting are realized,and the embedded monitoring platform is built.The vehicle video monitoring terminal application software is designed and implemented.It includes video capture and display and graphical user interface interaction,the collected and processed vehicle information is transmitted to the terminal interface through the network,realizing the visual display of the vehicle situation,playback control of the video and real-time management of the vehicle.Simultaneously,in order to improve the transmission efficiency and uniformity the data format,a data communication protocol is designed.Finally,functional tests on each module are performed,joint debugging test between modules is realized.The test results show that the vehicle video monitoring terminal designed in this paper runs stably,the video playback rate can reach 25 frames/s,the video playback has high real-time performance and the human-computer interaction interface is friendly,meeting the design requirements.