【摘要】 作为智能交通系统(ITS)核心技术之一,专用短距离通信(DSRC)技术得到了广泛的引用。本文主要对欧洲 DSRC 标准 CEN/TC278 协议中各种数据类型的 BER 编码规则进行了分析,详细描述了 BER 编码中标识符(T)、长度(L)、内容(C)部分产生方法,并利用面向对象中虚函数的多态性及继承性实现对DSRC 中的应用协议数据单元(APDU)的编解码。更多还原

【Abstract】 As one of the key technology of ITS, DSRC has got extensive applications. This article mainly analyzed BER coding regulations of various data types in CEN/TC278 protocol of Europe DSRC standards, and described design methods of tag (T ),length(L),content(C ) in BER encoding/decoding process in detail ,and realized the encoding/decoding of application protocol data unit(APDU) of DSRC by using multi-states and inheritor of virtual function in object-oriented technology.更多还原