摘要
应答器(Balise)作为点式信息传递通道,广泛应用在我国高铁领域。在了解报文结构及FFFS编码策略的基础上,进一步研究了报文硬件和软件CRC校验的实现方法;分析了2种方法在校验时间、占用资源和实时性的差异。在实际应用中,应该根据应用场合的不同,合理的选择相适应的校验方法,以达到系统的最优化设计。
As one of the primary transmission modes, balise has been widely used in China high-speed rail. Based on the understanding of balise system, telegram structure and FFFS code strategy of Eurob- alise, we study the realization of software CRC verification and hardware CRC verification. The differ- ences in elapsed time, resource occupancy and real-time response of the two methods are analyzed. In practical application, we shall choose reasonable verification method according to different situations to get optimal design.
出处
《铁道通信信号》
2014年第9期60-63,共4页
Railway Signalling & Communication
关键词
循环冗余校验码
校验
应答器
报文
CRC （ Cyclic Redundancy Check）
Verification
Balise
Telegram
