Automatic door control
AssigneeGreenshpon Engineering Works Ltd.
InventorShimon Seadia
Life of this patent
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Abstract
An automatic door opening system includes an element that is rotatable to change a position of a door. A potentiometer is coupled to the element such that rotation of the element in one direction increases a resistance of the potentiometer and rotation of the element in the opposite direction decreases the resistance. A controller is configured to rotate the element concurrently with monitoring the resistance of the potentiometer, and stop the rotation when the resistance of the potentiometer is indicative of a target position of the door.
Claims21
An automatic door opening system comprising:
- an element that is rotatable to change a position of a door;
- a potentiometer that is coupled to the element such that rotation of the element in one direction increases a resistance of the potentiometer and rotation of the element in the opposite direction decreases the resistance;
- and
- a controller that is configured to rotate the element concurrently with monitoring the resistance of the potentiometer, and to stop the rotation when the resistance of the potentiometer is indicative of a target position of the door.
A method for operation of an automatic system for changing a position of a door, the method comprising, by a controller:
- receiving input from a sensor,
- when the input is indicative of changing the position of the door to a target position:
- operating a motor to rotate a rotatable element in one direction to open the door, or in an opposite direction to close the door;
- concurrently with operating the motor, receiving a reading of a potentiometer that is coupled to the rotatable element rotation, where rotation of the element in one direction increases a resistance of the potentiometer and rotation of the element in the opposite direction decreases the resistance;
- and
- stopping the rotation when the resistance of the potentiometer is indicative of the target position of the door.
An automatic door opening system comprising:
- an element, wherein rotation of the element corresponds to a change in a position of the door;
- an encoder configured to sense a rotation of the element and generate a signal indicative of the sensed rotation;
- and
- a controller that is configured to control the rotation of the element concurrently with monitoring the signal, and to stop the rotation when the signal is indicative of a target position of the door.
Dependencies are inferred from the claim text.