Design And Implementation Of Vehicle ID Subsystem Based On WSN

The license plate and driving license are the important documents which indicate the legal status of motor vehicles in our country and are also the important basis for the vehicle management department to supervise the vehicles.However,due to the easiness and low crime cost of the forgery of current license plate and driving license,current regulatory model of motor vehicles is difficult to adapt to the needs of vehicle monitoring and management under the new situation.In view of the above,my company set up the project team,through the use of WSN technology,set up in the environment perception network application support platform,and network information security technology is adopted to design vehicle electronic identity uniqueness security mechanism,for the motor vehicle installation has the only electronic identity identification(vehicle id),the grid of electronic identity patch(fixed monitoring),automatic vehicle authentication and state detection,and build a new type of automated vehicles supervisory system,and the realization of the related subsystem,finally realizes the vehicle status automatically identify and fine management of vehicles,We will solve a series of prominent problems in vehicle regulation,such as public security,traffic order and environmental protection.In the above project,the author participated in the overall design of the vehicle supervision system project,and was mainly responsible for the design and related application of the vehicle id subsystem in the project.The vehicle id system designed in this thesis is the most front-end subsystem of the vehicle supervision system,which is composed of the automobile id hardware and control software,and finally installed on the vehicle to be applied.The main work of this thesis includes the following aspects:1.According to the application requirement of this subject,this thesis analyzes the current situation of the domestic and foreign auto identification system,and further study of the WSN technology,ZigBee technology,information encryption technology,on the basis of the research and analysis,put forward the general design of the vehicle supervision system based on WSN,vehicle id subsystem and vehicle structure,composition,and function design of each module.2.The ZigBee protocol stack was designed and developed for the second time.Adaptive static channel selection method,network reliability control and backoff delay control mechanism were applied to achieve wireless,fast,long-distance data communication between vehicles and monitoring points.3.A dedicated data communication protocol was designed.And an interweaving encryption mechanism was designed for vehicle identity information.Through the integration of interleaving source encryption,transmission encryption,one-way and dynamic encryption,a dynamic,effective and independent security mechanism was realized.4.According to the traffic regulation application needs,design and realize the function of the main business of auto identification subsystem(vehicle registration,vehicle authentication,as well as vehicle detection,etc.),and the system function,performance test and analysis,to analyze the problems found,the research and improvement.The test results showed that the vehicle supervisory system designed and implemented in this thesis can achieve the main functions of wireless networking,fast and secure data transmission and vehicle supervision services,and achieve the design goals of the project in terms of transmission distance,vehicle speed and stability.The pilot application was conducted in Hongze County,Huaian City,Jiangsu Province.