Method and system of controlling a door drive
First Claim
1. A method of controlling a door drive, in particular of a roller door, whereina capacitive sensor is used for the automatic recognition of obstructions in the region of the door closing path of the door, andthe recognition of obstructions on the closing of the door takes place by a comparison of the then current change in the capacity of the capacitive sensor with respect to a variable with a reference value or with a reference curve.
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Accused Products
Abstract
The present invention relates to a method of controlling a door drive, in particular of a roller door, wherein a capacitive sensor is used for the automatic recognition of obstructions in the region of the door closing path, wherein the recognition of obstructions on the closing of the door takes place by a comparison of the then current change in the capacity of the capacitive sensor with respect to a variable with a reference value or a reference curve.
The invention furthermore includes a corresponding system of controlling a door drive.
36 Citations
22 Claims
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1. A method of controlling a door drive, in particular of a roller door, wherein
a capacitive sensor is used for the automatic recognition of obstructions in the region of the door closing path of the door, and the recognition of obstructions on the closing of the door takes place by a comparison of the then current change in the capacity of the capacitive sensor with respect to a variable with a reference value or with a reference curve.
- 17. A system of controlling a door drive, in particular of a roller door, for the automatic recognition of obstructions in the region of the door closing path of the door having a capacitive sensor and an evaluation unit which detects and evaluates the capacity of the sensor, wherein the evaluation unit calculates the then current change in the capacity of the capacitive sensor with respect to a variable for the recognition of obstructions on the closing of the door and compares it with a reference value or a reference curve.
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22. (canceled)
Specification