Abstract: A method and apparatus for managing hand-washing compliance can include: sensing a user's hand-wash motions; estimating hand-wash scrubs per minute based on the user's hand-wash motions; counting a total hand-wash scrubs based on the user's hand-wash motions; estimating hand-wash vigor based on the user's hand-wash motions; calculating a hand-wash score based on the hand-wash vigor; displaying the hand-wash vigor, the total hand-wash scrubs, and the hand-wash scrubs per minute on a display; and displaying a timer that counts down based on the hand-wash vigor.

Abstract: A method and apparatus for managing hand-washing compliance can include: sensing a user's hand-wash motions; estimating hand-wash scrubs per minute based on the user's hand-wash motions; counting a total hand-wash scrubs based on the user's hand-wash motions; estimating hand-wash vigor based on the user's hand-wash motions; calculating a hand-wash score based on the hand-wash vigor; displaying the hand-wash vigor, the total hand-wash scrubs, and the hand-wash scrubs per minute on a display; and displaying a timer that counts down based on the hand-wash vigor.

Abstract: A method and apparatus for monitoring hand-washing compliance can include: detecting sensor readings; calculating movement estimations based on differences between the sensor readings; counting a number of crosses based on how often the movement estimations: are calculated above an upper threshold and are calculated below a lower threshold in consecutive movement calculations, are calculated below the lower threshold and are calculated above the upper threshold in the consecutive movement calculations, or a combination thereof; decrementing a countdown timer based on the number of crosses being above a cross-threshold; and pausing the countdown timer based on the number of crosses being below the cross-threshold.

Abstract: A hand-washing compliance system can include: a sensor mounted to a chassis, the sensor configured to detect sensor readings; a processor coupled to the chassis and connected to the sensor with a communication conduit, the processor configured to: calculate movement estimations based on differences between the sensor readings at discrete times; count a number of crosses based on how often the movement estimations: are calculated above an upper threshold and are calculated below a lower threshold in consecutive movement calculations, are calculated below the lower threshold and are calculated above the upper threshold in the consecutive movement calculations, or a combination thereof, decrement a countdown timer based on the number of crosses being above a cross-threshold, and pause the countdown timer based on the number of crosses being below the cross-threshold; and a housing mounted to the chassis enclosing the processor and at least partially enclosing the sensor.