基于车载异构网络的数据聚合终端设计

Design of Data Aggregation Terminal Based on Vehicle Heterogeneous Network

传统数据终端缺乏丰富的通信接口,通信方式单一、传输协议固定,只能接入单一的通信网络,难以满足车载异构网络中数据交互的需求。为了解决此问题,提出了一种能同时支持多种通信方式(UART,CAN,Ethernet,4G,WiFi)和多种通信协议(TCP/IP,UDP,HTTP,MQTT)的终端设计方案。设计并实现了以Cortex^(TM)-A7为核心处理器的数据聚合终端,使该终端能正常工作在多种接入方式的车载异构网络中。测试结果表明,所设计终端接口丰富,通用性强,有效解决了传统数据终端接入能力差的问题,在实际应用中运行稳定,各项性能均满足指标要求。

Traditional data terminals with single communication method and fixed transmission protocols are lack of variety of communication interfaces,which can only access to a single communication network and are difficult to meet the needs of data interaction in a heterogeneous vehicle network.In order to solve this problem,a terminal design is proposed,which can support multiple communication methods(UART,CAN,Ethernet,4G,WiFi)and multiple communication protocols(TCP/IP,UDP,HTTP,MQTT)at the same time.The designed data aggregation terminal with Cortex^(TM)-A7 as the core processor operates normally in a heterogeneous vehicle network with multiple access methods.The test results show that the terminal is of various interfaces and strong versatility,which effectively solves the problem of poor access capabilities of traditional data terminals.It runs stably in practical applications,and all the performances meet the index requirements.