Arrangement and method for determining position of elevator car

An elevator car and elevator technology, applied in the field of determining the position of the elevator car, can solve problems such as contact failure, unreliable mechanical contacts, easy oxidation of mechanical contacts, etc., and achieve the effect of improving reliability

Active Publication Date: 2011-06-29
KONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The mechanical contacts of magnetic switches are unreliable; vibration or shock may cause the failure of the contacts, and the mechanical contacts are also prone to oxidation

Method used

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  • Arrangement and method for determining position of elevator car
  • Arrangement and method for determining position of elevator car
  • Arrangement and method for determining position of elevator car

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Embodiment Construction

[0026] figure 1 An elevator system is shown in which an elevator car 1 is moved in an elevator hoistway 2 in a manner that is essentially prior art. An elevator motor 27 moves the elevator car 1 in the elevator hoistway 2 in a substantially vertical direction between floors 25 via elevator cables (not shown in the figure). The frequency converter 26 regulates the movement of the elevator motor 27 by regulating the power supply between the grid 28 and the elevator motor. In response to calls sent from the floors 25 and car calls sent from the elevator cars and transmitted by the controller 30 of the elevator car, regulation of the movement of the elevator car and elevator traffic are performed by the elevator controller 29. ) adjustment.

[0027] A device according to the invention for determining the position of an elevator car 1 in an elevator hoistway 2 is installed in a figure 1 in the elevator system. The measuring device 3 is fastened in connection with the roof of th...

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PUM

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Abstract

The invention relates to an arrangement and a method for determining the position of an elevator car (1) in the elevator hoistway (2). The arrangement comprises a measuring apparatus (3) fitted in connection with the elevator car (1). The measuring apparatus is arranged to form an electromagnetic radio-frequency measuring signal (5), for determining the position of the elevator car. The arrangement also comprises a position identifier (4) fitted in a selected location in relation to the elevator hoistway (2). The position identifier is arranged to connect inductively to the aforementioned electromagnetic measuring signal (5), and also after it has connected to send a determined pulse pattern using the aforementioned measuring signal (5).

Description

technical field [0001] The invention relates to a device and a method for determining the position of an elevator car. Background technique [0002] The position of the elevator car in the elevator hoistway is conventionally determined using a magnetic switch affixed to the elevator car. In this case, permanent magnets are placed in the elevator system on the floors and at the end sections of the elevator hoistway, among other places. According to the basic principle of position determination, the mechanical contacts of a magnetic switch fixed on the elevator car change its state when it is brought into the vicinity of a permanent magnet installed in the elevator hoistway. [0003] The mechanical contacts of the magnetic switch do not indicate the definite position of the elevator car. For this reason, after loss of position information, the elevator car has to be driven to a known reference point in the elevator hoistway. Such a search for the location of the elevator ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B3/02
CPCB66B1/3492B66B3/02
Inventor 蒂莫·梅里汤米·劳卡斯彼得里·坎加斯
Owner KONE CORP
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