Method and apparatus for using gestures in a refrigerator dispensing system
A refrigeration device includes a refrigerated compartment, a door that seals the compartment, a dispenser opening in an exterior surface of the door, and a dispenser outlet in the opening. The refrigeration device also includes a reservoir configured to hold a substance and a conveyor configured to convey the substance from the reservoir to the dispenser outlet. Measurement sensors of the refrigeration device are configured to generate first measurement signals that are indicative a gesture of a hand in the dispenser opening. A control unit of the refrigeration device is configured to ascertain a requested fill height based upon the first measurement signals. The control unit is further configured to generate signals that cause the conveyor to convey the substance from the reservoir to a container placed under the dispenser outlet and cease conveying the substance upon the container attaining the requested fill level.
1. A method, the method comprising:
in a refrigeration device:
generating, via one or more sensors of a dispenser, measurement signals indicative of a hand positioned in a dispenser opening;
determining, via a control unit of the refrigeration device according to the measurement signals, a height of the hand in free-space within the dispenser opening, wherein the height of the hand is in relation to a bottom shelf of the dispenser opening;
setting a requested fill height to the measured height of the hand within the dispenser opening;
dispensing a substance into a container placed in the dispenser opening; and
ceasing the dispensing in response to the substance in the container attaining the requested fill level.
2. The method of claim 1 , wherein the one or more sensors comprise one or more ultrasonic sensors.
3. The method of claim 1 , comprising awakening the one or more sensors in response to a proximity sensor detecting that the opening of the dispenser received an object.
4. The method of claim 1 , comprising detecting, via the control unit, a height of the container according to the measurement signals.
5. The method of claim 4 , comprising confirming, before the dispensing, that the requested fill level is less than the detected height of the container.
6. The method of claim 1 , comprising detecting, via the control unit, a level of a substance in the container according to the measurement signals.
7. The method of claim 1 , comprising directing a pointing device to illuminate a portion of the container corresponding to the requested fill level.
8. The method of claim 1 , wherein detecting the height of the hand comprises:
detecting, based upon the measurement signals, a palm of the hand within the dispenser opening and a relation of the detected palm to the container; and
determining the requested fill height based upon the relation of the detected palm to the container.
9. The method of claim 1 , wherein detecting the height of the hand comprises:
detecting, based upon the measurement signals, a finger of the hand in the dispenser opening and a relation of the detected finger to the container; and
determining the requested fill height based upon the relation of the detected finger to the container.
10. The method of claim 1 , comprising:
generating a surface map of the hand according to the measurement signals;
wherein measuring the height of the hand comprises detecting the height of the hand according to the generated surface map of the hand.
11. A refrigeration device, comprising:
a refrigerated compartment;
a door movable between a closed state that seals the refrigerated compartment and an opened state that grants access to the refrigerated compartment;
a dispenser opening in an exterior surface of the door;
a dispenser outlet in the dispenser opening;
a reservoir configured to hold a substance;
a conveyor configured to convey the substance from the reservoir to the dispenser outlet;
one or more sensors configured to generate measurement signals that are indicative of a hand in the dispenser opening; and
a control unit configured to:
measure, according to the measurement signals, a height of the hand in free-space within the dispenser opening, wherein the height of the hand is in relation to a bottom shelf of the dispenser opening,
set a requested fill height to the measured height of the hand,
generate signals that cause the conveyor to convey the substance from the reservoir to a container placed under the dispenser outlet, and
cease conveying the substance upon the container attaining the requested fill level.
12. The refrigeration device of claim 11 , wherein the one or more sensors comprise one or more ultrasonic sensors.
13. The refrigeration device of claim 11 , comprising:
a proximity sensor configured to generate a signal in response to the dispenser opening receiving an object, wherein the control unit is configured to awaken the one or more sensors in response to receiving the signal from the proximity sensor.
14. The refrigeration device of claim 11 , wherein the control unit is configured to detect a height of the container according to the measurement signals.
15. The refrigeration device of claim 14 , wherein the control unit is configured to confirm that the requested fill level is less than the detected height of the container before causing the conveyor to convey the substance to the container.
16. The refrigeration device of claim 11 , wherein the control unit is configured to detect a level of the substance in the container according to the measurement signals.
17. The refrigeration device of claim 11 , comprising:
a pointing device configured to selectively illuminate portions of the container; wherein the control unit is configured to cause the pointing device to illuminate a portion of the container that corresponds to the requested fill level.
18. The refrigeration device of claim 11 , wherein the control unit is configured to measure the height of the hand by:
detecting, based upon the measurement signals, a palm of the hand within the dispenser opening and a relation of the detected palm to the bottom shelf of the dispenser opening; and
ascertain the requested fill height based upon the relation of the detected palm to the bottom shelf of the dispenser opening.
19. The refrigeration device of claim 11 , wherein the control unit is configured to measure the height of the hand by:
detecting, based upon the measurement signals, a finger of the hand in the dispenser opening and a relation of the detected finger to the bottom shelf of the dispenser opening; and
ascertain the requested fill height based upon the relation of the detected finger to the bottom shelf of the dispenser opening.
20. The refrigeration device of claim 11 , wherein the control unit is configured to generate a surface map of hand according to the measurement signals; and
detect the height of the hand according to the generated surface map of the hand.