Underwater robot also known as unmanned remote control submersible, is a kind of work in the underwater limit operation robot. Underwater environment is harsh and dangerous, the depth of human diving is limited, so underwater robot has become an important tool to develop the ocean.
What are the advantages and disadvantages of underwater robots?
1. Advantages of underwater robots
Underwater robots can replace human beings to work underwater for a long time in highly dangerous environments, polluted environments and zero visibility waters. Underwater robots are generally equipped with sonar systems, cameras, lights and mechanical arms that can provide real-time video and sonar images. The mechanical arm can lift heavy objects. Underwater robots are widely used in petroleum exploitation, maritime law enforcement, scientific research and military fields.
2. Disadvantages of underwater robots
Because of the complex environment of underwater robot, the noise of underwater acoustic signal, and the shortcomings of various underwater acoustic sensors such as poor accuracy and frequent jump, the filtering technology is very important in the motion control system of underwater robot. Short baseline or long baseline underwater acoustic positioning system are commonly used position sensors in the motion control of underwater robots. The factors mainly include the sound velocity error, the measurement error of the response time of the transponder, and the calibration error of the position of the transponder. The factors that affect the accuracy of doppler speedometer mainly include sound velocity C, physical and chemical properties of medium in seawater, and turbulence of vehicle.
Application areas of underwater robots
1, safety search and rescue: 1, can be used to check whether the dam, bridge pier is installed with explosives and the structure is good or bad; 2. Remote control reconnaissance, close inspection of dangerous goods; 3, underwater array to assist installation/disassembly; 4. Detection of smuggled goods on the ship's side and bottom (public security bureau, customs); 5. Observation of underwater targets, search and rescue of ruins and collapsed mines; 6. Search for underwater evidence (public security, customs); 7. Maritime rescue and salvage, offshore search;
Two, pipeline inspection: 1, can be used for municipal drinking water system in the tank, pipe, reservoir inspection; 2. Sewage/waterlogging pipeline and sewer inspection; 3, foreign oil pipeline inspection; 4. Cross-river and cross-river pipeline inspection;
1. Hull maintenance; Underwater anchor, propeller and bottom exploration; 2. Inspection of wharf and wharf pile foundation, bridge and underwater part of dam; 3. Channel barrier removal and port operation; 4. Maintenance of underwater structure of drilling platform and offshore oil engineering;
4. Scientific Research and Teaching: 1. Observation, research and teaching of water environment and underwater organisms; 2. Marine investigation; 3. Observation under ice;
5. Underwater entertainment: 1. Underwater TV shooting and underwater photography; 2, diving, boating, yachting; 3. Watch divers and select suitable sites before diving;
1. Nuclear power plant reactor inspection, pipeline inspection, foreign matter detection and removal; 2. Maintenance of hydropower station lock; 3, hydropower DAMS, DAMS and DAMS maintenance (sand-discharging hole mouth, barrage, drainage overhaul);
Archaeology: underwater archaeology, underwater shipwreck investigation.
Fishery: deep-water cage fishery breeding, artificial fishing reef investigation.
The rapid development of artificial intelligence and other Internet technologies has also promoted the rapid development of the underwater robot industry. The underwater robot has expanded from the military market at the beginning to the civilian and mass entertainment market, and has been widely applied.
