Methods and systems for oral cleaning device localization

An oral cleaning device comprising:

• a motion identifier;
• and
• a controller in communication with the motion identifier, wherein the controller is configured to:
• (i) determine, based on sensor information received from the motion identifier, a first location of the oral cleaning device within the user's mouth;
• (ii) measure, using sensor information received from the motion identifier, an amount of time elapsing between a start and a stop of a movement of the oral cleaning device within the user's mouth at the first location;
• (iii) calculate, using Fitt's law and the measured elapsed amount of time, the number of teeth brushed during the elapsed amount of time;
• and (iv) determine, based on the first location and the number of teeth the oral cleaning device was displaced during the elapsed amount of time, which of the user's teeth were included in the displacement.

A method for localizing an oral cleaning device within a user's mouth, the method comprising the steps of:

• determining, based on sensor information received from a motion identifier, a first location of the oral cleaning device within the user's mouth;
• detecting, using sensor information received from the motion identifier, a transition of the oral cleaning device from the first location to a second location within the user's mouth;
• calculating, using Fitt's law and an elapsed amount of time for the transition, a probability of which of a plurality of possible transitions occurred during the elapsed amount of time;
• and
• determining, based on the first location and the calculated transition probability, the second location.