Provided is a wheeled device, including: a chassis; a set of wheels coupled to the chassis; one or more electric motors to rotate the set of wheels; a network card for wireless connection to the internet; a plurality of sensors; a processor electronically coupled to the plurality of sensors; and a tangible, non-transitory, machine readable medium storing instructions that when executed by the processor effectuates operations including: capturing, with at least one exteroceptive sensor, measurement readings of the environment; and estimating, with the processor using a statistical ensemble of simulated positions of the wheeled device and the measurement readings, a corrected position of the wheeled device to replace a last known position of the wheeled device.