船舶航行信息分层采集优化算法  

Optimization algorithm of hierarchical acquisition of ship navigation information

作　　者：底慧萍 尚文卿 DI Hui-ping;SHANG Wen-qing(Shijiazhuang Vocational College of Finance and Economics,Shijiazhuang 050024,China;Shijiazhuang Vocational College of Engineering,Shijiazhuang 050024,China)

机构地区：[1]石家庄财经职业学院,河北石家庄050024 [2]石家庄工程职业学院,河北石家庄050024

出　　处：《舰船科学技术》2020年第6期40-42,共3页Ship Science and Technology

基　　金：河北省自然科学基金(E2017210166)

摘　　要：针对传统采集优化算法在不同采集周期内得到的簇首节点分布不均匀,导致各个节点之间在采集信息、融合数据以及传输信息时会产生相互干扰的问题,研究一种船舶航行信息分层采集优化算法。首先使用决策树计算船舶航行信息增益值,对船舶航信信息进行分层,计算不同信息层次中特征的互信息量,得到航行信息数据离散特征,采用凸优化策略不断改进得到的离散特征,选择一项离散特征作为二值化层次阈值的采集值,将二值化层次阈值采集值分布在采集区域中,计算出采集区域内最优簇首数,完成船舶航行信息分层采集算法的优化。实验结果表明,与传统采集优化算法相比,船舶航行信息分层采集优化算法得到的簇首节点分布均匀,不会产生节点采集干扰的现象。In view of the uneven distribution of cluster head nodes in different acquisition periods of the traditional acquisition optimization algorithm, which leads to the mutual interference of each node in the acquisition, fusion and transmission of information, a hierarchical acquisition optimization algorithm for ship navigation information is studied. First, the decision tree is used to calculate the gain value of ship navigation information, and the ship navigation information is stratified. The mutual information of different information levels is calculated, and the discrete characteristics of navigation information data are obtained. The convex optimization strategy is used to continuously improve the discrete characteristics. A discrete characteristic is selected as the collection value of binary level threshold, and the collection value of binary level threshold is distributed in the In the acquisition area, the optimal number of cluster heads in the acquisition area is calculated, and the hierarchical acquisition algorithm of ship navigation information is optimized. The experimental results show that: compared with the traditional acquisition optimization algorithm, the cluster head nodes obtained by the hierarchical acquisition optimization algorithm of ship navigation information are evenly distributed, and there is no interference of node acquisition.

关 键 词：航行信息 分层采集 簇首节点 采集区域 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]