Elevator system having a measuring device for determining a position of an elevator car in an elevator shaft
First Claim
1. An elevator system having an elevator car in an elevator shaft comprising:
- a measuring tape for determining a position of the elevator car in the elevator shaft, which is arranged vertically in the elevator shaft, and has optical coding for length measurement;
at least one marking element that is arranged on the measuring tape and has optical coding;
a sensor device which is attached to the elevator car and comprises a lighting source and a sensor which form a detection field for detecting the measuring tape;
an evaluation device for decoding the codings in the detection field; and
a control device for controlling the elevator system as a function of the at least one marking element,wherein the at least one marking element is fixedly arranged on the measuring tape,wherein the optical coding of the at least one marking element has a same format as a format of the measuring tape,wherein the optical coding of the at least one marking element corresponds to a length specification, andwherein the optical coding of the at least one marking element has a value outside a length range of the measuring tape.
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Accused Products
Abstract
An elevator system having an elevator car in an elevator shaft and having a measuring tape in the elevator shaft for determining the position of the elevator car in the elevator shaft. The measuring tape is arranged vertically in the elevator shaft and has optical coding for length measurement. At least one marking element which has optical marking is arranged on the measuring tape. The marking element is fixedly arranged on the measuring tape. A sensor device which comprises a lighting source and a sensor which form a detection field for detecting the measuring tape is attached to the elevator car. The elevator system comprises an evaluation device for decoding the codings in the detection field and a control device for controlling the elevator system as a function of the coding and/or of the position of the at least one marking element on the measuring tape.
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Citations
17 Claims
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1. An elevator system having an elevator car in an elevator shaft comprising:
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a measuring tape for determining a position of the elevator car in the elevator shaft, which is arranged vertically in the elevator shaft, and has optical coding for length measurement; at least one marking element that is arranged on the measuring tape and has optical coding; a sensor device which is attached to the elevator car and comprises a lighting source and a sensor which form a detection field for detecting the measuring tape; an evaluation device for decoding the codings in the detection field; and a control device for controlling the elevator system as a function of the at least one marking element, wherein the at least one marking element is fixedly arranged on the measuring tape, wherein the optical coding of the at least one marking element has a same format as a format of the measuring tape, wherein the optical coding of the at least one marking element corresponds to a length specification, and wherein the optical coding of the at least one marking element has a value outside a length range of the measuring tape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17)
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12. A marking element with an attachment element for attachment to a measuring tape of an elevator system and having optical coding, wherein a marking element is designed to cover a coding of the measuring tape with its coding after the attachment to the measuring tape, and the coding of the marking element corresponds to a length specification of over 50 m, over 100 m, over 500 m, over 1 km, or over 1.5 km,
wherein the coding of the marking element has a same format as a format of the measuring tape, and wherein the coding of the marking element has a value outside a length range of the measuring tape.
Specification