摘要
针对现有船载AIS系统不存储长期数据的缺点,利用嵌入式linux操作系统及postgresql数据库,提出基于分区存储的航行安全数据库模式,构建海量AIS目标信息的存储结构及数据分区触发器设计、内存缓冲设计,对比数据插入效率,结果表明,分区存储及内存缓冲可实现航行安全数据库的最优存储方式。
In view of the shortcomings of the existing ship AIS system without storage of long term data,using embedded Linux operating system and Postgresql database,the navigation security database model based on partition storage was proposed.The storage structure of massive AIS target information and the design of data partition trigger and memory buffer were designed,and the efficiency of data insertion was introduced.The comparison results showed that partition storage and memory buffering achieve the optimal storage mode of navigation safety database.
作者
郭鹍
杜志啸
蒋晓龙
GUO Kun;DU Zhi-xiao;JIANG Xiao-long(CSSC Marine Technology Co.,Ltd.,Beijing 100070,China)
出处
《船海工程》
北大核心
2018年第5期164-167,共4页
Ship & Ocean Engineering
关键词
AIS系统
航行安全数据库
分区存储
AIS system
navigation safety database
partitioned storage
作者简介
郭鹍(1977-),男,硕士,高级工程师研究方向:舰船导航.
