The application provides an
underwater robot positioning device, which comprises a floating ball, a
spherical bearing, an overwater positioning module, a tension sensor, a positioning cable, a cable
winch, an
underwater positioning module, a depth gauge and an
underwater robot; the
spherical bearing is installed at the bottom of the floating ball; the overwater positioning module is installed at the top of the
spherical bearing; the tension sensor is installed at the bottom of the spherical bearing; one end of the positioning cable is connected with the tension sensor, and the other end is connected with the cable
winch; the cable
winch, the underwater positioning module and the depth gauge are all installed on the
underwater robot. The device has high positioning accuracy, is suitable for limited space, has strong anti-interference performance, has
dynamic positioning capability and long endurance.