CAN_GPRS车载网关设计与应用.pdf

第 2 8卷第 5期 计算机应用与软件 V o l28 No. 5 20 11年 5月 Com puter A pp lications and So ftw are M ay 2011 CAN /GPRS 1 2, 3 2, 3 张立国 丁志刚 彭娟春 1 200040) 2 20 1112 ) 3 20 1112 ) 汽车内部网的应用和无线车载数据的传输受到越来越多的重 从应用的角度详细描述了车载 CAN / GPR S Contro lle r A rea N etw ork /G enera l Packe tR ad io Serv ice) 网关的硬件设计和软件设计同时, 针对目前将 CAN 设备驱动实现为字符设备驱动带来 的缺点, 提出了将 CAN 设备驱动实现为网络设备驱动, 使用 Socket 进行 CAN 通信最后, 通过测试验证 Socke t CAN 通信和 GPRS 无线联网 L inux PXA3xx CAN G PRS DESIGN AND APPLICATION OF CAN /GPRS VEHICULAR GATEWAY 1 2, 3 2, 3 Zhang L iguo D ing Zh igang P eng Juanchun 1 (Shanghai Institute of Comp uting Technology, Shanghai200040, Ch ina) 2 (ShanghaiD evelopm ent Center of Computer Sof wt are Technology, Shanghai 201112, China) (ShanghaiE ng ineering Technology R esearch Center of Embedded Sy stem App lication, Shanghai201112, China) Abstract The applica tion o f autom obile inte rnal netw orks and the transm ission o fw ire less vehicu la r data are attracting g row ing a tten tions. In term s o f the applica tion, w e expatia te on the designs of hardw are and so ftw are o f CAN /GPRS veh icular gatew ay in the paper. M eanw h ile, in ligh t to the draw back brought abou t by mi plem enting CAN dev ice driver to the character drive r, w e propose to mi plem ent CAN dev ice dr iver to the ne wt ork dev ices driv ers and u sing Socket to conduct CAN comm un ication. A t last, w e validate Socket C