T-BOX车载网联终端设计

Design of the In-Vehicle Telematics BOX

基于瑞萨RH850微控制器、TI CC2640R2F蓝牙微控制器、高通MDM9628微处理器设计了一款T-BOX车载终端。该终端通过CAN总线技术、GPS定位技术、数据加密技术、蓝牙通信技术、LTE无线数据通信技术等将车辆信息发送至云端车载信息服务提供商,实现鉴权通信、车辆数据主动上报等功能;车载信息服务提供商亦可通过该终端查询车辆信息、远程控制车辆、远程诊断车辆、远程刷新车辆控制器等。实车试验表明:设计的T-BOX车载终端可准确采集、传输车辆信息,能够可靠完成与车辆及车载信息服务提供商的交互。

A telematics box(T-BOX)vehicle terminal was designed based on Renesas RH850 microcontroller, TI CC2640 R2 F bluetooth microcontroller and Qualcomm MDM9628 microprocessor.Controller area network(CAN)bus technology, GPS positioning technology, data encryption technology, bluetooth communication technology and long term evolution(LTE)wireless data communication technology were used by this terminal to send vehicle information to telematics service provider(TSP)in the cloud, so as to realize authentication communication, vehicle data actively reporting and other functions.This terminal can also be used by TSP to query vehicle information, remotely control vehicle, remotely diagnose vehicle, and remotely refresh vehicle controller.The real vehicle test shows that the designed T-BOX vehicle terminal can accurately collect and transmit vehicle information, and can reliably complete the interaction with vehicle and TSP.