动力定位系统与单波束测深仪在科考船定点作业中的应用

Application of dynamic positioning system and single-beam echo sounder in the research vessel based fixed-point observation

科考船定点作业时会受到海洋风、涌、浪、流等外界环境因素影响,导致工作效率降低,原位测量精度下降,甚至影响作业安全。动力定位系统(DP)具有自动定位功能,能够抵抗外界环境因素的影响,可实现科考船高精度定点控位。单波束测深仪不仅可以测量水深,也可反映水下设备深度信息,可以起到辅助监控水下设备功能。本文在介绍定点作业施工现状与局限性的基础上,分析DP系统与单波束测深仪工作原理,以“向阳红01”船为载体,在定点作业时开启DP系统与单波束测深仪,发现该方法可以提高科考船定点作业工作效率、原位测量精度并保障作业安全,可为其他科考船定点作业提供参考。

The research vessel based fixed-point observation is affected by external environmental factors such as ocean wind,surge,waves,and currents,which would result in low work efficiency,in-situ measurement accuracy decline,and even may affect work safety.The dynamic positioning(DP)system with the automatic positioning function can reduce the influence of external environmental factors,thus realize high-precision fixed-point control of research vessels.The single-beam echo sounder can not only measure the water depth,but also detect the depth of the underwater equipment,thus may serve as an auxiliary monitoring facility.This study reviews the current situation and limitations of the fixed-point observation and analyzes the working principle of the DP system and single-beam echo sounder.Then,the DP system and single-beam echo sounder are applied during fixed-point survey by"Xiangyanghong 01".It is concluded that the application of DP system and single-beam echo sounder can improve the efficiency of the fixed-point survey,in-situ measurement accuracy and work safety.This paper can provide a reference for other scientific research vessel's fixed-point survey.