基于OBDII接口的车辆行驶信息采集系统设计

OBDII Interface Based Vehicle Driving Information Acquisition System

为实时采集车辆行驶过程的相关状态数据,设计一种基于OBDII接口的车辆行驶信息采集系统.系统主要包括车辆、车辆行驶信息采集节点和上位机软件.采集节点通过OBDII接口与车辆进行通信,实时采集车辆行驶过程中的当前时刻、节点号、车速、转速、油耗、经纬度、水温、故障码等状态数据,并通过串口转发给上位机.上位机接收车辆状态信息,存储到数据库中并在界面上显示.测试实验表明:该系统可实时采集、存储和显示车辆行驶信息,具有一定的应用价值.

To acquire related data in real time during vehicle driving process,a vehicle driving information acquisition system based on OBDII interface is designed.The system includes the vehicle,the acquisition node of vehicle driving information and the host computer software.The acquisition node communicates with the vehicle through OBDII interface,and records the current time,node number,vehicle speed,rotational speed,fuel consumption,longitude,latitude,water temperature,fault codes and other state data in the vehicle driving process in real time.They are then forwarded to the host computer via serial port.After receiving the vehicle status information,the host computer stores them in the database and displays on the screen.Experimental tests show that the system can successfully acquire,store and display the vehicle driving information in real time.