摘要
无人船测深系统被越来越广泛地应用于采集水深数据。在复杂水域环境中进行作业时,无人船受到工作底图及导航方式的限制,难以采用自动航行模式进行测绘,因此提出了一种无人机正射影像辅助无人船测深的作业方法。通过无人机快速获取测区正射影像成果,利用正射影像辅助进行测区划定和测线布设,避开可能造成作业风险的水上障碍物和岸滩。并在此基础上进行自动航行线路的规划设计,在水位不低于正射影像获取水位时开展无人船测深作业。经验证,采用该方法能够最大限度的完成测绘任务,同时降低作业强度与风险,具有较好的应用价值。
Unmanned ship sounding system is more and more widely applied in the acquisition of water depth data.When operating in complex waters,it is difficult for unmanned ships to use automatic navigation mode for surveying and mapping due to restricted by base map and navigation mode.For solving this problem,an operation method of UAV orthophoto assisted unmanned ship sounding is proposed.The UAV is used to obtain orthophoto of the survey area and then the orthophoto is use to assist carrying out the delineation of survey area and the layout of surveying lines,by which overwater obstacles and shoals which may possibly cause the risk for the operation can be avoided.On the basis of these,the automatic navigation route can be planned and designed.Thus,the unmanned ship sounding can be carried out when the water level is not lower that the level at which the orthophoto was acquired.It has been verified by the experiences that by using this method not only the surveying and mapping tasks can be complete furthest,but the operation intensity and the safety risks can also be reduced accordingly,having better application value.
作者
栾天
聂仁奇
LUAN Tian;NIE Ren-qi(Qingdao Surveying&Mapping Institute,Qingdao 266032,China;Company of Qingdao West Coast Geomatics Center,Qingdao 266000,China;Qingdao Key Laboratory for Integration and Application of Marine-Terrestrial Geographical Information,Qingdao 266000,China)
出处
《海岸工程》
2020年第2期142-147,共6页
Coastal Engineering
关键词
无人船测深系统
正射影像
自动航行
unmanned ship measurement system
orthophoto
automatic navigation
