船舶通信报文实时动态按位解析方法  

Method of dynamic real-time parsing and filtering for ship communication messages

作　　者：郭梓旸 姬庆庆 肖创柏 Guo Ziyang;Ji Qingqing;Xiao Chuangbai(Faculty of Information Technology,Beijing University of Technology, Beijing 100124;University of Chinese Academy of Sciences, Beijing 100049;Virtual Reality Laboratory, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190)

机构地区：[1]北京工业大学信息学部,北京100124 [2]中国科学院大学,北京100049 [3]中国科学院计算技术研究所虚拟现实实验室,北京100190

出　　处：《高技术通讯》2019年第4期344-351,共8页Chinese High Technology Letters

基　　金：国家自然科学基金(61501008);北京市科技计划(Z171100004717001);北京市自然科学基金(4162007)资助项目

摘　　要：在船舶系统中,随着报文数量的增加,无法对报文进行统一的配置。现有的报文解析技术存在着解析效率低,无法实时解析等缺点。针对上述问题,文章提出了一种基于数据库的报文配置方法和实时解析提取过滤的方法,该方法利用数据库对报文和其中的数据字段信息进行管理,并可以根据数据字段起始终止位数实现以位作为最小解析单位对报文进行快速解析和提取过滤。通过实际应用表明,此方法可以对报文进行统一配置,并提高了报文实时解析和提取过滤的效率,能满足实际需要。In the ship system, as the number of message increases, the message cannot be uniformly configured. The existing message parsing techniques have the disadvantages of slow parsing efficiency and inability to parse in real time. Aiming at the above problems, this paper proposes a database-based message configuration method and real-time parsing, extracting and filtering method. The proposed method uses the database to manage the message and the data field information therein. The message can be quickly parsed and filtered with bits as the minimum parsing unit according to the starting digits and ending digits of the data field. The actual application shows that the proposed method can uniformly configure message and improve the efficiency of real-time parsing and extracting or filtering of packets to meet actual needs.

关 键 词：动态配置 实时解析 报文过滤 数据提取 

分 类 号：U665.2[交通运输工程—船舶及航道工程]