Inland river complex water area underwater topography measurement system and method

Abstract

An inland river complex water area underwater topography measurement system comprises an unmanned aerial vehicle system, a small depth finder and a ground station system, the small depth finder is connected with the lower portion of the unmanned aerial vehicle system, and the ground station system is connected with the unmanned aerial vehicle system. The unmanned aerial vehicle system comprises anunmanned aerial vehicle, a high-voltage battery module, a GNSS module, a self-stabilization holder, a flight control module and a data transmission module. The unmanned aerial vehicle system is additionally arranged, the unmanned aerial vehicle is adopted as a carrier, the unmanned aerial vehicle is automatically remotely controlled to fly to a measuring point, and automatically descends until adepth finder transducer is immersed in a position 10-20 cm below the water level, and the unmanned aerial vehicle position and depth measurement information are returned to the ground station system through the unmanned aerial vehicle data transmission module, so underwater topographic measurement is automatically implemented in the whole process, measurement data can be transmitted back to the ground station in real time in a wireless mode, manual wading measurement is not needed, the safety risk is low, and the operation efficiency is high.

Description

technical field [0001] The invention relates to the field of surveying and mapping science and technology, in particular to an underwater terrain measurement system and method for complicated inland river waters. Background technique [0002] Underwater topography measurement in areas with dense obstacles such as riprap and fishing nets has always been a difficult point in marine surveying and mapping. The traditional measurement method is to use a boat to carry a depth sounder or use a manual handheld GNSS-RTK wading measurement. Due to obstacles in the measurement area, there are bumps and entanglements when using small boats for measurement, and there are safety risks such as falls and falls in manual walking measurement. Both small boat measurement and manual walking measurement have disadvantages such as high operational risk and low efficiency. Therefore, there is still a lack of an efficient, convenient, and low-cost underwater topographic measurement system in the ex...

AI Technical Summary

Problems solved by technology

Due to obstacles in the measurement area, there are bumps and entanglements when using small boats for measurement, and there are safety risks such as falls and falls in manual walking measurement. Both small boat measurement and manual walking measurement have disadvantages such as high operational risk and low efficiency.

Therefore, there is still a lack of an efficient, convenient and low-cost underwater topographic measurement system in the existing field of underwater topographic measurement in complex waters of inland rivers

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