北斗卫星通信系统在船舶航线规划中的应用

Application of beidou satellite communication system in ship route planning

传统船舶路线规划方法所使用的通信系统,在极端条件下无法进行数据传输,导致规划方法的鲁棒性较差。对此应用北斗卫星通信系统,设计新型船航线规划方法。利用北斗卫星通信系统的高适应性,对当前航向安全区域进行划分,并对其进行适当扩展,确保其区域内包含了潜在障碍物的边界,基于扩展后的安全区域,建立航障物的最小凸包围,作为航线规划的环境基础,最后应用Dijkstra算法,根据权重最小赋值,连接权重点,求取最优航线,实现航线规划。从实验结果可以看出,应用北斗卫星通信系统的船舶航线规划方法,在极端环境下,数据真实应用率提高了29%,数据包传输丢包率降低了33%,相比较传统规划方法,拥有更优秀的鲁棒性。

The communication system used in the traditional ship route planning method cannot transmit data under extreme conditions, resulting in poor robustness of the planning method. The beidou satellite communication system is used to design a new method of ship route planning. Use beidou satellite communication system, on the current course safety area,and carries on the appropriate extension, ensure its border area contains the potential obstacles, based on the extended security area, surrounded by establishing the minimum convex obstacle navigation item, as the environmental foundation of route planning, finally Dijkkstra algorithm, according to the minimum weight assignment, the connection power key, to calculate the optimal route, route planning. It can be seen from the experimental results that the ship route planning method of beidou satellite communication system can improve the real data transmission rate by 29% and reduce the packet loss rate by 33%under extreme environment. Compared with the traditional planning method, it has better robustness.