Method for measuring river channel by use of ground effect aircraft

Abstract

The invention discloses a method for measuring a river channel by use of a ground effect aircraft, belonging to the river channel measuring technology.. The method comprises the following steps of: firstly performing aerial photography by use of the ground effect aircraft; planning the measuring track of the ground effect aircraft according to the river channel position information obtained by aerial photography; carrying a multibeam echosounder, an RTK measuring device and a flow velocity profiler on the ground effect aircraft to measure the river channel; and processing the data obtained by aerial photography, the measured data of the multibeam echosounder and the measured data of the flow velocity profiler to obtain the overwater / underwater three-dimensional topographic map of the river channel and the talweg and stream central line of the river channel. The method disclosed by the invention has the characteristics of low measuring cost, high degree of automation, wide range of application and digital mapping of the river channel terrain.

Description

technical field [0001] The invention relates to a river channel measurement technology, in particular to a river channel measurement method using a ground-effect aircraft as a measurement platform, combined with an aerial camera, an RTK measurement device, a multi-beam echo sounder and a velocity profiler. Background technique [0002] According to my country's "Waterway Observation Specifications", river measurement is divided into water topographic measurement, underwater topographic measurement and water flow velocity measurement at each point of the river. The water topographic survey needs to measure the plane position and height of the embankments and soil slopes along both banks of the river. The underwater topographic survey needs to measure the geographical distribution of the river bed and the hydrological environment, and use the measurement data to draw an underwater topographic map. In the map, the line connecting the deepest points of each section of the river ...

AI Technical Summary

Problems solved by technology

This method is labor-intensive and inefficient

Although the ship is equipped with a multi-beam depth sounder with a high degree of automation, its economic cost is high, and there is a risk of grounding when measuring on the edge of the river and in shallow water.

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