B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 1/34 (2006.01)
Patent
CA 2370883
In this system for generating hoistway information, images of the surface of a guiderail (1) are recorded by means of a CCD line camera (3), and from the surface patterns which can be read from the images, the absolute position of the elevator car is determined. The image data are input into a first correlator (I) which uses an incremental position of a new image and an absolute position (i) of a preceding image to generate an estimated position which is input into a second correlator (II). The estimated position is used to locate the relevant database sector in which the image which was stored in the database during calibration is situated. The second correlator (II) compares the new image with the stored image and determines from the position index of the stored image the absolute position (i+1) which is transmitted to the elevator control.
Gunzinger Anton
Kunz Rene
Schenkel Markus
Silberhorn Gert
Ag Inventio
Riches Mckenzie & Herbert Llp
LandOfFree
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