无线网络船舶监控中心多源数据定位  

Multi-source data positioning of ship monitoring center based on wireless network

作　　者：孙方霞[1] SUN Fang-xia(College of Marine Electrical and Intelligent Engineering,Jiangsu Maritime Institute,Nanjing 211170,China)

机构地区：[1]江苏海事职业技术学院轮机电气与智能工程学院,江苏南京211170

出　　处：《舰船科学技术》2022年第7期162-165,共4页Ship Science and Technology

基　　金：江苏省产学研合作项目(2020-166)。

摘　　要：为提高船舶监控中心数据定位的准确性,设计一个无线网络的船舶监控中心多源数据定位方法。采用压缩感知方法收集多源数据,压缩后向sink转发,采用最小生成树传递数据,采用D-S证据理论算法组合从不同信息源上采集得到信息,融合数据,对发送节点与接收节点之间的时间表转换,估计消息传输延迟,转换数据采集时间,采用后验概率公式,实时调整数据坐标,实现船舶监控中心多源数据的定位。实验包含数据距离测量、不同迭代次数下定位误差、不同锚节点数量定位误差3个部分,结果表明所提出的方法不仅能够准确测量数据的距离,受到迭代次数与锚节点数量的影响较小,能够准确定位到数据的位置,有效提高了数据定位的准确性。In order to improve the accuracy of data positioning of ship monitoring center, a wireless network multisource data positioning method of ship monitoring center is designed. The compressed sensing method is used to collect multi-source data, and after the collection, it is compressed and forwarded to the sink. The minimum spanning tree is used to transmit the data. Timetable conversion between timetables, estimating message transmission delay, converting data collection time, adopting a posteriori probability formula, adjusting data coordinates in real time, and realizing the positioning of multi-source data in the ship monitoring center. The experiment includes three parts: data distance measurement, positioning error under different iteration times, and positioning error with different anchor node numbers. The results show that the proposed method can not only accurately measure the data distance, but is less affected by the iteration number and the number of anchor nodes, and can accurately locate the location of the data, which effectively improves the accuracy of data location.

关 键 词：无线网络 舰船监控中心 多源定位 数据传递 距离 未知节点 

分 类 号：TM76[电气工程—电力系统及自动化]