Design And Implementation Of Vehicle Monitoring Terminal Based On IPv6

With the rapid development of economy,more and more people have their own cars.People demand for higher traffic management and want to enjoy safe transport,green transport.Nowadays,study of the vehicle monitoring system is mainly based on IPv4 network protocol,but because of IPv4 address space is being exhausted,the next generation Internet protocol IPv6 will gradually come out.The purpose of this project is to develop security vehicle hold gateway based on IPv4/IPv6 dual-stacks,and with this basis developing a complete set of vehicle monitoring system based on IPv6 protocol.With the continuous development of the Internet,IPv4 encountered its bottlenecks,suck as address space and security features.Compared with IPv4, IPv6 has a larger address space,more network swallowing capacity,higher quality of service and multicast function,more security features,more convenient for mobile applications and many other advantages.At present,all countries are placed in the same level to basic the application study of IPv6 standard,our country enlarged to negotiate standard research and application devotion to the IPv6 and concentrated on controling an IPv6 core technique in recent years,and broke the limitation of Internet management, address allotment,technique development and business application etc.The item carries on a design according to the IPv6,because each parts of the vehicle can be installed IP address.Making use of an Internet to carry out vehicle and it each parts getting information will attribute to the transportation management,the car break down diagnosis etc.This item is designed according to pure IPv6,but only IPv4 is supported in local existing wireless network.So we use a CIPE pipe technique in CDMA wireless network and pack the IPv6 data into IPv4 data to achieve IPv6 data correspondence. The method is transparent to customer.GIS system is the core contents of vehicle monitoring system.Secondary development has three methods,namely,separate development,second host-based development and component-based development.Because the component-based development has a cleverly made and vivid and low-cost characteristics,and don't need specialized GIS development language, directly imbed to develop tool,consumedly ease the burden of the software developer,and strengthened GIS software of expandability.GIS developer just need to acquaint with general Windows develop tools,attribute,method and affairs of control,can complete the development and integration of applying the system,carry out strong GIS function.According to the above advantages, this item adopts a component-based development,choosing the MapX control provided by MAPINFO and mature VS2005.Using these tools we can shorten research time,and come to an expectation purpose.Vehicle monitoring terminal is a carrier between customer and system,we have paid more attention to function and practicability.In this paper, focusing on the topic of "IPv4/IPv6 Dual-stack vehicle hold gateway",we studied the vehicle monitoring system and related technology,and design and implementation of vehicle monitoring terminal based on IPv6.GIS,GPS,IPv6 constitutes the core of this system.After studying of these technologies, we designed the terminal's structure and functional modules,including four parts:system settings module,the map visualization module,monitoring module and History data management module.System Settings module allows the user to set the IP and communication port.Map visualization module provides users with map display and general operating tools,with the perfect combination of VC and MapX,we can easily realize these functions.However,users always need to measure distances,area,quick orientation and to determine the proportion of the current map.By rationally using of MapX affairs,terminal function is enriched by implementation of measurement,scale and Eagle Eye. Monitoring module is the core module of the terminal,including real-time location and display,remote control.Receiving real-time vehicle location and status data from the server,user can gain vehicle's dynamics information. Command orders,analyzed by the server,send to vehicle gateway,order CAN (Controller Area Network) to control the lights,locks and so on.In this way we can implement remote control vehicles.By setting query time,users can track the history of vehicles and operation log to conduct a comprehensive inquiry,reflecting the historical status of vehicles.Thus we can manage vehicle more conductively.Because of GPS positioning data errors,the map not be drawn accurate enough,coordinate conversion and other reasons,when we display and playback,the vehicle don't location on the road,the track not along the road.Through using of MapX object method,coping with some algorithm,we can more effectively solve these problems.Some special vehicles, such as Bank of escort vehicles,fuel delivery trucks,etc.,need to control the path of its travel.We can pre-set path of traffic,as long as the vehicles to be driven directly out of this range or path,user will be reminded by a warning,then they can deal with it.After continuous test,the system gets more functions,and its robustness gradually increased.The project successfully passed major third-part testing and final project acceptance.The project achieved the desired goals, including a command transfer,protocol conversion,the accuracy of the order execution,order of the real-time transmission and validity.With the maturity of IPv6 technology,vehicle monitoring system based on IPv6 will be the practical application progressively.