"This unmanned measurement ship is really good. Not only is the data accurate, but it automatically cruises according to the trajectory after the route is determined, saving at least half of the measurement time. We finally did not waste any effort." Huang Weiwei, the surveying squad leader of the Jining-Taierzhuang (Jining section) project of the Jining-Taierzhuang (Jining section) of the Beijing-Hangzhou Canal, built by the Second Company of China Communications Construction First Aviation Bureau, stationed in Qinghai, looked at the boat gliding in the light fog.
The unmanned surveying ship that made Huang Weiwei praise is a "water weapon" developed by the project team for waterway dredging. After the project entered the major stage, the measurement of the cross-section of the channel dredging became the top priority, but the dredging of the channel was 39 kilometers long. The traditional measurement method required a group of personnel to guard the reference station on the land, and a group of personnel to measure the water depth on the ship, which was time-consuming and labor-intensive, so it was imperative to find a new measurement method.
After multiple comparisons and market research, the project team decided to work with the manufacturer to develop a small unmanned surveying ship. Unmanned measuring ships look simple, but they are struggling to do it, especially how to effectively avoid transport ships is a difficult problem.
"Can we ask the manufacturer to design an automatic obstacle avoidance system?" someone suggested. "This doesn't work. First of all, the cost of designing an automatic obstacle avoidance system will be too high, and secondly, it will cause confusion in the collected data." Chen Bin, chief engineer of project , said.
automatic avoidance is unreliable, and it also depends on manual labor. "Mr. Chen, today is good. How about this picture I took on my mobile phone?" Chen Bin, who was thinking hard, suddenly heard this sentence and suddenly realized.
"You can use the camera to install a pair of eyes on the measuring ship for real-time monitoring. You can avoid transport ships and avoid weeds on the shore, killing two birds with one stone." After several days of thought, Chen Bin said.
does it as soon as possible. After repeated deductions, everyone agreed that it was feasible and approved by the design unit.
So, the unmanned measuring ship was finally born. Although it is only 1 meter square, the sparrow is small and has all the internal organs. It mainly consists of two parts: unmanned ship and base station.
Compared with traditional manual measurement methods, unmanned measurement ships only need to operate one person. After manually setting the route, they can automatically cruise and measure through the depth sounder . The operation is flexible, which saves time and manpower, making it possible to normalize the underwater terrain measurement of river channels. It can also establish a dynamic database of changes in river channels and silt thickness to facilitate the development of river channels dredging and dredging measurement.
Chen Bin said: "The unmanned surveying boat can go to deep water and run into shallows. Its success is the result of each of us's struggle and a microcosm of our construction of intelligent construction sites."
After four years of fierce battle, a "golden waterway" of the Beijing-Hangzhou Canal that stimulates the vitality of 's high-quality development has become a beautiful landscape of Jining , which is coming with vitality and magnitude, and the unmanned measuring ship is investing in new construction...
(Reporter Bai Xiao of Dazhong Daily Client, Correspondent Wang Shengda and Liu Peng, Reported)
