Recently, the Yangtze River Yichang Channel Survey and Mapping Office has successively received newly equipped unmanned survey ships, integrated multi-beam and other equipment, and professional technical training is also in full swing.
The "Huawei No. 3" unmanned survey ship equipped here adopts a new generation of IoT master control and has an ultra-long remote control distance; the hull adopts a dual positioning antenna design, and the hull is stable and reliable. Combined with the IMU module, it can easily pass through the bridge hole , It can still operate normally in waters with poor GPS signals; the fastest cruising speed can reach 28 km/h, which can effectively guarantee the efficiency of underwater survey operations. The unmanned survey ship is equipped with a shallow draft single-beam sounder, which can form a “depth and shallow” collocation with the multi-beam sounding system there, effectively expanding the detectable water area, obtaining more valuable shallow underwater terrain data, and working in water The safety of personnel is more effectively guaranteed.
In addition, the site is also equipped with a HN-400 integrated multi-beam sounding system. This type of equipment adopts an integrated design and highly integrates the multi-beam array, attitude meter, and surface sound velocity meter, which makes installation more convenient. Mounted on a small boat. At the same time, this type of equipment has higher performance parameters than existing multi-beam systems. The maximum strip angle can reach 210°, and the maximum scanning width has been increased to 8 times the water depth. This type of multi-beam can more conveniently detect underwater structures such as vertical cliffs and high-piled wharfs, effectively expanding the measurable terrain conditions and greatly improving operating efficiency.
is guided by actual production needs, boldly innovates and uses new surveying and mapping technologies. Surveying and mapping operations are gradually developing in the direction of unmanned, intelligent, and high-efficiency, supported by solid technology, and escort the development of digital waterways.
