舰船航行数据的稳定传输方法研究  

Research on stable transmission method of ship voyage data

作　　者：李光荣 LI Guang-rong(Guangxi University,Nanning 530005,China;Nanning College For Vocational Technology,Nanning 530003,China)

机构地区：[1]广西大学,广西南宁530005 [2]南宁职业技术学院,广西南宁530003

出　　处：《舰船科学技术》2022年第4期136-139,共4页Ship Science and Technology

摘　　要：通过记录器收集船舰航行数据,经微波服务器及北斗指挥机向控制机传输,使用离散傅里叶变换扩展正交频分复用技术,构建舰船航行数据加密算法模型。通过逻辑加密算法进一步增强该模型的安全性,实现舰船航行数据的加密。通过北斗导航设备及微波服务器,将加密后舰船航行数据传输至工控机后开展数据解密,完成数据传输。经过实验分析,该方法传输的舰船航行数据传输比特误码率较低,传输安全性与稳定性较高,具有良好舰船数据传输效果。Multi sensors are used to collect the signals of key components of marine low-speed diesel engine,and the signals are preprocessed.The fault signals are obtained by using the over limit judgment module.RBF neural network carries out fault diagnosis and fault degree judgment of marine low-speed diesel engine according to the characteristics of fault signals.The experimental results show that the system can effectively filter the useless high-frequency signals in the signal,the fault diagnosis results are the same as the actual fault results,and can significantly reduce the number of diesel engine faults.

关 键 词：舰船航行 数据传输 北斗导航 微波服务器 离散傅里叶 比特误码率 

分 类 号：TN919[电子电信—通信与信息系统]