Tracking cleaned areas

Abstract

A system for tracking areas which have been cleaned using a cleaning appliance is comprises a location determination module and an audio detection module configured to detect sound from its surroundings. The audio detection module is configured to detect when a cleaning appliance is operating based on the detected sound. The location determination module is configured to, in response to the audio detection module detecting that the cleaning appliance is operating, determine location information indicative of a location of a cleaning portion of the cleaning appliance. A method for tracking areas which have been cleaned using a cleaning appliance is also described. Figure 4