Application of Unmanned Ship Sounding System in Linear Engineering Underwater Survey
The development and use of unmanned vessel sounding systems have a certain foundation,but in urban areas,the underwater survey part of linear engineering generally uses manual or single beam methods to collect underwater terrain data. Although traditional techni-cal means can ensure the accuracy of the data,there are still many shortcomings. In this paper,in the Shanghai Rail Transit Line 20 project,the water depth data at the crossing of the river in the tunnel was obtained through various methods using the Huawei 6 unmanned vessel sur-vey system. Through various analysis of the error data,it has been proved that the accuracy of multi-beam bathymetry has been effectively controlled and can fully meet the application in engineering surveying,At the same time,various data achievements have filled the gap in intel-ligent holographic surveying and underwater measurement,and provided a foundation for the construction of Real China.