基于OBD协议的车辆远程监控系统设计

Design of Vehicle Remote Monitoring System Based on OBD Protocol

车辆状态信息的监控有助于及时发现汽车故障,降低汽车维修成本,增强汽车安全性。为了解决市场上车辆诊断设备便携性差、操作烦琐、功能单一、费用昂贵及兼容性差等问题,设计了一款应用车载诊断系统(on board diagnostics,OBD)协议的车辆远程监控系统,其集成了硬件电路,搭建了系统服务器架构;设计了网络监测界面,通过OBD协议读取车辆电控设备状态信息,结合GPS模块获取的车辆位置信息并利用GPRS/GSM通信技术将数据发送至网络服务器,在网络监测界面实时显示车辆相关信息并对异常数据进行报警。测试结果表明,车辆搭载本系统后,可实现行程记录、车况监测警报等功能,该设备具有一定的实用性、实时性和准确性。

Monitoring vehicle status is useful to detect car faults in time,reduce vehicle maintenance costs,and enhance vehicle safety.In order to solve the problems of poor portability,operation complexity,single function,high cost and poor compatibility of vehicle diagnostic equipments in the market,it designed a vehicle remote monitoring system based on OBD protocol.The system obtains the status of vehicle electronic control devices through the OBD protocol,and then sends the data to network server through GPRS/GSM communication technology with vehicle location information acquired by GPS module.Its hardware circuit is integrated,system server architecture is built,and network monitoring interface is designed so as to display the information of the vehicle in real time and alarm in abnormal data situation.The vehicles equipped with this system can realize driving record,vehicle condition monitoring and alarming and so on,which is practical,real-time and accurate to a certain extent.