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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.
In order to collect the relevant status data of the driving process in real time, a vehicle driving information acquisition system based on OBDII interface is designed.The system mainly includes vehicle, vehicle driving information acquisition node and host computer software.The acquisition node communicates with the vehicle via OBDII interface, Collect the status data such as the current time, node number, speed, speed, fuel consumption, latitude and longitude, water temperature, fault code and so on in the process of vehicle driving and forward it to the host computer through the serial port.The host computer receives the vehicle status information and stores it in the database On the test results show that: The system can collect, store and display vehicle driving information in real time, which has a certain application value.