GNSS和全站仪组合浮态精确定位系统的研发及应用

Research and application of floating-state precise positioning systemwith GNSS and total station combination

在远离海岸线的海上复杂施工作业环境下,为了满足工程施工高精度定位要求,一般要辅助海中测量平台实施测量定位工作。文章提出了一种GNSS与全站仪组合式的浮态精确定位方法,可以直接以施工船舶为载体,在船舶甲板上架设GNSS接收机和电子全站仪,通过误差纠偏改正,可有效控制船舶受波浪流晃动带来的测量误差影响,从而实现工程施工平面精确测量定位。并结合工程实例开发了GNSS与全站仪组合式浮态精确定位系统,通过工程实践检验,验证了该系统在海上浮态测量条件下用于施工平面精确测量定位的可行性。

In order to meet the requirements of high-precision positioning in offshore complex construction environment far from the coast,it is necessary to assist the offshore survey platform to carry out the survey and positioning.In this paper,a floating state precise positioning method based on the combination of GNSS and total stations is presented,in which a working vessel is used as a carrier and a GNSS receiver and an electronic total station can be set up directly on the deck of the working vessel to effectively control the influence of measurement error caused by wave and current fluctuation to realize the accurate survey and location of the construction plan.A floating-state precise positioning system with the combination of GNSS and total station is developed based on the project cases and the feasibility of the system useing for accurate survey and location of the construction plan with floating state survey is verified by project practice.