Ship hull working robot and control method the same

PURPOSE: A robot for work of a hull wall and a control method for the same are provided to use a water depth sensor and an inertia sensor without installing a separate LBL system, thereby positioning the robot on a hull wall in an efficient and accurate manner. CONSTITUTION: A moving unit(20) performs at least one of a straight driving and a rotary driving of a robot on a hull wall. A wall contact unit(30) locates the robot close to the hull wall. A sensor unit(60) detects the depth of water and the azimuth of the robot. In order to make the robot travel on the hull wall in the direction of water depth change, a control unit(50) controls the moving unit. [Reference numerals] (20) Moving unit; (30) Wall contact unit; (40) Cleaning unit; (50) Control unit; (61) Pressure sensor; (62) Inertial sensor