运行状态下网络时延测量船舶位置误差消除方法

Elimination method of ship position error under network condition in operation state

消除船舶位置误差可以使地面指挥中心系统做出正确决策,确保船舶安全航行。传统的误差消除方法针对性较差,消除后的结果不够准确,容易导致海难发生。为了解决此问题,基于运行状态下研究了一种新的网络时延测量船舶位置误差消除方法,首先对消除框架进行介绍,重点设计了微端口驱动、中间层驱动和协议驱动,阐述了其工作原理;然后分析了误差消除法工作流程,共包括船舶位置检测、船舶位置比较、误差消除和状态反馈4步;最后通过实验验证了该方法的可行性,由实验结果可知,该消除方法针对性好,消除后得到的船舶位置与真实位置吻合度极高,具有很好的发展前景。

The elimination of ship position error can make the ground command center system make correct decisions and ensure the safe navigation of ships. The traditional error elimination method is less targeted and the result is not accurate enough to cause shipwreck. In order to solve this problem, a new method of ship location error elimination based on network time delay measurement is studied. Firstly, the elimination frame is introduced. Micro port drive, middle layer drive and protocol drive are designed, and its working principle is expounded. Then the work flow of error elimination method is divided into packages. It includes four steps of ship position detection, ship position comparison, error elimination and state feedback. Finally, the feasibility of the method is verified by experiments. The experimental results show that the method has good pertinence, and the ship position after elimination is in high agreement with the real position, and has good prospects for development.