Pool-cleaning robot

    A new pool-cleaning robot will use sensory/algorithmic system to determine the size of the pool and select the most efficient cleaning path. While avoiding obstacles--like the pool's ladder and its own power cord--the robot will clean the entire surface of the pool floor, walls and steps with its motorized PVC scrub brush. It will work without using the pool's filtration system, hoses or booster pumps, which should help save money by reducing the need to run those systems.