Underwater robot positioning and navigation device and method

• Main Authors: WANG XIN, ZHOU WENJIN, LIU ZHANGCHI, YAO PANPAN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

The invention relates to an underwater positioning and navigation device, in particular to an underwater robot positioning and navigation device and method, which are used for positioning an underwater robot under water in a three-dimensional space, and the underwater robot positioning and navigation device comprises a buoy navigator floating on the water surface and connected with the underwater robot through a communication cable; a positioning sensor is arranged on the buoy navigator and is used for positioning the buoy navigator; the signal processing control unit is in communication connection with the positioning sensor, the buoy hydrophone and the robot hydrophone; the buoy hydrophones are connected to the buoy navigator, are submerged in water and are used for acquiring far-field operation sound; and the at least one robot hydrophone is connected to the underwater robot and is used for acquiring near-field operation sound. Compared with the prior art, the problems of poor positioning precision, diffic