OBD Vehicle Terminal Designing And Implementation For Vehicle Network Application

The vehicle has been an indispensable tool in our daily life with the progress of society.In the crowded city,almost every family has their own private cars,the number of taxis is much more than before,the society demand of freight vehicles on the road is much more than a few years before.The vehicle related problem has increased with the increase of vehicles,such as traffic safety,traffic order,urban transportation,air pollution and so on.There is a kind of enterprise,the main management object of these enterprises is vehicle,such as taxi company,logistics company and so on.These enterprises has very strong requirement of vehicle management.From daily management side,we need track the moving track of the vehicle.From safety side,we need require all driver safe driving.Driver shouldn‘t do rapid acceleration,rapid deceleration and take a sudden turn.From cost control side,the driver behavior habit is important to fuel saving.This paper will focus on the requirement of this kind of enterprise to complete the designing and application of vehicle remote management terminal for remote collecting and analysis vehicle information.The paper focuses on researches as below:1.The paper analysis history and current status of internet of vehicle.With the IOV background and the current status of most enterprises vehicle management,there are some problem need to be corrected and improved,for example,the tracking for safe driving behavior and fuel saving is not effective enough.The terminal can get and analysis some driver behavior related data to track and supervise drivers‘ action and improve vehicle management.2.In this paper,we do analysis for the system features‘ requirement of vehicle remote management terminal.Because the focus of the terminal is for the getting and analysis of safe driving and fuel saving related data,the safe driving behavior is our analysis point,we will analysis which behavior will impact safe driving,what‘s safe driving related data should be collected from vehicle.Base all of these requirement,we design the whole architecture for system,including hardware frame and software frame,In addition,we analysis the work flow of system.3.All of knowledge point of vehicle remote management terminal in this paper,the OBD II(on-board diagnostic II)will be introduced first,including OBD II conception,development history,related ISO protocol,data interface,and operational principle and so on.In addition,we introduce the OBD II module‘s technical architecture and affect in the whole system,and how to get,transfer and analysis OBD II data.4.In this paper,we introduce the designing and realizing of terminal‘s modules.Including the module for remote getting and analysis OBDII data,the module for safe driving related data tracking and analysis and the module for remote upgrade via air.5.At the end of the paper,we will verify the vehicle remote management terminal.Make sure complete the connection between terminal and vehicle,getting vehicle data successfully.