Maytronics Ltd.

Gilad Goldenberg

Leo Herszenhaut

Boaz Ben Dov

Avshalom Kehati

Nachum Lerner

Disclosed herein is a method of detecting stalled state of a dynamic pool equipment unit, comprising receiving a plurality of movement features relating to a dynamic pool equipment unit deployed in a water pool which are captured during a predefined sampling window and comprise (1) motion features of the pool equipment unit, and (2) operational features of electric motor(s) of the pool equipment unit, determining a movement pattern of the pool equipment unit using one or more statistical models applied to the plurality of movement features which are trained to estimate a stalled state of the pool equipment unit in which the pool equipment unit is pitched up and unable to advance on a slopped obstacle in the water pool, and causing the pool equipment unit to stop attempted advance in a current direction responsive to determining that the pool equipment unit is in the stalled state.

Detecting stalled state of dynamic pool equipment

A method of evaluating slipperiness of a floor surface of a water pool by inducing one or more rotation scans of a pool equipment unit by driving a power pulse to one or more electric motors configured to rotate the pool equipment unit deployed on a floor surface of a water pool and at least partially submerged in water of the water pool, accumulating power values of the power pulse while its level is above a motor operation threshold, accumulating values of angular velocity of the pool equipment unit measured starting after the power pulse drops below the threshold until the pool equipment unit stops rotating; computing work energy invested to rotate the pool equipment unit based on the power values and the angular velocity values; computing a slipperiness index of the floor surface based on the work energy; and initiating one or more actions according to the slipperiness index.

Pool surface slipperiness detection

A pool cleaning robot that may include a hollow body, a fluid input, a fluid output, a propulsion unit for moving the pool cleaning robot within a pool, a filtering unit, and a sensing module that comprises a gas pressure sensor, a first space, a second space and a diaphragm; wherein the diaphragm seals the second space and separates the first space from the second space; wherein the diaphragm, via the first space, is fluidly coupled to the filtering unit; wherein the diaphragm is configured to define a gas pressure within the second space as a function of, at least, a fluid pressure within the first space; wherein the gas pressure sensor is located within the second space and is configured to measure the gas pressure within the second space.

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Kfar-Saba, Israel

Gilad Goldenberg