METHOD FOR THE POSITION DETECTION OF AN ELEVATOR CAR

摘要

The invention concerns a method and a software program for determining the position of an elevator car moved in an elevator shaft, wherein an acceleration is measured and combined with measured open/closed states of the car door. The open-states of the door are used to identify floor-levels and a moving run sequence, wherein the car position estimate is then compared with allocated floor-levels from which the destination floor-level is calculated to extract the exact position of the car within the elevator shaft.

主权项

1. A method for determining the position of an elevator car moved in an elevator shaft by the operation of a drive motor, said method comprising the steps of:
measuring an acceleration by means of an accelerometer for a moving run sequence of the car; processing the acceleration in a processing unit to determine a distance-value the car moved; using the distance-value the car has moved to update a car position estimate; measuring open/closed states of a car door by means of a door sensor, wherein open-states of the door are used to identify floor-levels and the moving run sequence, sequence; and comparing the car position estimate with said allocated floor-levels and determining therefrom the destination floor-level.