WO2001083352A2 - Device for detecting the position of an elevator car - Google Patents
Device for detecting the position of an elevator car Download PDFInfo
- Publication number
- WO2001083352A2 WO2001083352A2 PCT/CH2001/000260 CH0100260W WO0183352A2 WO 2001083352 A2 WO2001083352 A2 WO 2001083352A2 CH 0100260 W CH0100260 W CH 0100260W WO 0183352 A2 WO0183352 A2 WO 0183352A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elevator car
- rope
- detecting
- marks
- light
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
Definitions
- the invention relates to a device for detecting the position of an elevator car.
- an elevator with an elevator shaft is known in which a coded tape is arranged along the elevator shaft over the entire height of the shaft.
- the coding consists of openings in the band arranged in two tracks.
- a light transmitter and an optoelectronic receiver are arranged on an elevator car that can be moved in the elevator shaft.
- the coded band runs between the light transmitter and the receiver, so that the light beams from the light transmitter either reach the optoelectronic receiver through the openings in the band or are interrupted by the band.
- a disadvantage of the known device is that the height of the elevator shaft and thus the resulting length of the incrementally coded tape result in inaccuracies in the detection of the car position.
- Another disadvantage is the great effort involved in fastening the band in the elevator shaft. In order to avoid misinformation, the belt must be supported precisely over the entire shaft height. In addition, inaccuracies in the guidance of the elevator car can have a negative impact on the reliability of the shaft information.
- Another disadvantage is that the coded tape protrudes from the shaft wall and protrudes into the shaft room. The shaft cross-section must accordingly be larger be kidneyed.
- Another disadvantage with regard to security is that it cannot be distinguished whether the light transmitter or receiver is defective or whether the light beam is interrupted by the coded band.
- the error case can therefore not be distinguished from a normal function.
- Such an arrangement is also too complex and therefore too expensive for position detection when evacuating an elevator car.
- the object is achieved by a device according to the invention for detecting the position of an elevator car according to claim 1, alternatively by a device for detecting the position of an elevator car according to claim 18 and alternatively by a device for detecting the position of an elevator car according to claim 19.
- the device for detecting the position of an elevator car according to claim 1 has a rope which is connected to the elevator car. Furthermore, the device has a device for detecting markings made on the rope.
- a device according to claim 18 is proposed for detecting the position of an elevator car, in which a switch is provided on each lock of a shaft door, which switch can be actuated by the elevator car and which is connected to an evaluation unit via an electrical connection.
- a device in which a switch is provided on the elevator car (4), which switch can be actuated by means arranged in the shaft (1) and which is connected via an electrical connection to an evaluation and display unit (10 ) is connected, the means being arranged in the shaft (1) such that they actuate the switch when the elevator car (4) is in the holding area.
- the marks attached to the rope are advantageously color marks. These are simple and inexpensive to attach to the rope and are easy to detect.
- the rope can be the governor rope or a carrying rope.
- the use of the governor rope or the carrying rope has the advantage that no additional rope for position detection has to be installed in the elevator shaft.
- the device for detecting the marks can have a lamp, a first light guide cable and a second light guide cable.
- the illuminant feeds light into the first light guide cable.
- the light transmitted via the first fiber optic cable hits the rope and then, depending on the presence of a mark, more or less strongly reflects on the second fiber optic cable.
- the second light guide cable transports the reflected light to any location.
- one end of the first light guide cable and one end of the second light guide cable are in the immediate vicinity of the rope.
- the other end of the second light guide cable is at a location away from the rope.
- the first and the second light guide cables are advantageously arranged in parallel in the vicinity of the cable.
- the absolute position of the elevator car in the shaft can be determined.
- the marks are advantageously distributed over the rope in such a way that detection of one of the marks corresponds to a position in the elevator car at which the elevator car can be entered.
- the first and the second light guide cable are each a mono conductor.
- the device for detecting the marks has an illuminant and a light-sensitive element which are arranged in the immediate vicinity of the rope. Furthermore, a display unit is provided, which is arranged at a location remote from the photosensitive element and is connected to the photosensitive element.
- an electrical energy source can be provided which, if necessary, is connected to the illuminant.
- the light beam generated by the illuminant advantageously strikes the rope at an acute angle.
- the illuminant can advantageously emit pulsed light.
- the above-mentioned embodiments can have a light-emitting diode, a laser diode or a light bulb as the illuminant.
- the color of the light emitted by the illuminant can advantageously be matched to the color of the brand in such a way that the brand can be optimally detected.
- the device for detecting the marks in the vicinity of the deflection roller of the speed limiter or in the vicinity of the speed limiter itself. This ensures a constant distance between the device for detecting the marks and the marks themselves, which is the case with an arrangement of the Device for the detection of the marks in the shaft would not easily be the case.
- the electrical connection between the switches attached to the locks of the shaft doors and the evaluation unit can advantageously be made by means of a hanging cable.
- the suspension cables are arranged in the elevator shaft.
- Detection of the position of an elevator car can be provided, wherein one of the devices for detecting the
- Position of an elevator car is assigned to a rope and the ropes are coded with marks.
- Position detection can be used.
- Figure 1 shows the entire elevator system in connection with the inventive device for detecting the
- Figure 2 shows a detailed representation of a first embodiment of the inventive device for detecting the position of an elevator car.
- FIG. 3 shows a second embodiment of the device according to the invention for detecting the position of an elevator car.
- an elevator car 4 is moved in an elevator shaft 1 by means of an electric drive 2, which is connected to a traction sheave, via a support cable 3.
- an electric drive 2 which is connected to a traction sheave, via a support cable 3.
- a speed limiter 5 is provided, the limiter rope 7 of which is connected to the elevator car 4.
- the governor rope 7 runs over a deflection roller 6 and over the speed limiter 5.
- the elevator car 4 is to be positioned - if necessary manually - so that any trapped people can leave the elevator car 4 more or less comfortably.
- the stopping accuracy of the elevator car 4 on the floors plays a subordinate role. To achieve this, it must be possible to check the position of the elevator car 4 when the elevator car 4 is driven manually.
- the device according to the invention for detecting the position of the elevator car 8 is provided, the detector 8 of which is arranged in the vicinity of the speed limiter 5 in FIG.
- the detector 8 of the device according to the invention for detecting the position of an elevator car 8 can also be arranged in the vicinity of the deflection roller 6.
- the detector 8 is connected to a display unit 10 via a connecting line 9 (light guide cable / electrical line).
- the display unit 10 is located outside the elevator shaft 1 and is easily accessible in the floor area. This makes it possible to monitor the position of the elevator car 4 by a person outside the elevator shaft, so that any safety risks which can arise from monitoring the position of the elevator car 4 by a person in the elevator shaft can be minimized.
- the detector 8 is arranged depends on the spatial and structural conditions and the technical requirements. If the display unit 10 is located in the upper region of the elevator shaft 1, it is more advantageous to arrange the detector 8 in the vicinity of the speed limiter 5. If, on the other hand, the evacuation device is located in connection with the display unit 10 in the lower region of the shaft, it may be advisable to arrange the detector 8 in the vicinity of the deflection roller 6.
- An embodiment of the invention (not shown in FIG. 1), which, however, can be easily implemented, provides that the detector 8 is arranged in the vicinity of the traction sheave for monitoring marks attached to the support cable 3.
- FIG. 2 shows a detailed view of a first embodiment of the device according to the invention for detecting the position of an elevator car 4.
- the detector 8 is arranged in the vicinity of the speed limiter 5. net.
- the light generated by an illuminant 12 is directed onto the limiter rope 7 via a first light guide cable 9.1.
- the light signal reflected by the limiter rope 7 or the mark 11 is transported via a second light guide cable 9.2 to any location outside the elevator shaft 1 and displayed there.
- a light-emitting diode (LED), a laser diode or a light bulb is used as the illuminant 12.
- the illuminant 12 is supplied by an electrical energy source, which is connected to the illuminant 12 if necessary.
- a battery or a battery, for example, can be considered as the electrical energy source.
- the first and the second light guide cables 9.1 and 9.2 can be designed as mono conductors for reasons of cost.
- the illuminant 12 can be adapted to the technical requirements with regard to its emitted light spectrum.
- the light spectrum of the light generated by the illuminant 12 can be adapted to the limiter rope 7, the support rope 3 and / or the marks 11 in order to achieve a higher detection accuracy.
- FIG. 3 shows a second embodiment of the device according to the invention for detecting the position of an elevator car.
- the device for detecting 8 the marks 11 has a lamp 12 and a light-sensitive element 13. Both are arranged in the immediate vicinity of the limiter rope 7.
- the light reflected by the illuminant 12 on the limiter rope 7 or on the mark 11 influences the electrical properties of the light-sensitive element 13. If, for example, the photosensitive element 13 is a photoresistor, the electrical resistance of the photoresistor is changed when the photoresistor is irradiated with light reflected by the limiter cable 7 or the mark 11. A signal corresponding to this change is displayed outside the elevator shaft 1 by means of the display unit 10.
- the detector 8 can have a screen 14 which absorbs disturbing light signals.
- pulsed light can be used to increase interference suppression.
- the evaluation is to be synchronized with the pulse frequency of the pulsed emitted light.
- the orientation of the light-sensitive element 13 is adapted to the angle of reflection.
- the color of the light emitted by the illuminant can be matched to the color of the marks 11 in such a way that the marks 11 are optimally detected.
- FIG. 3 need not be limited to the limiter rope 7, but can also be used for evaluating marks 11 which are attached to the suspension rope 3.
- the interlocks of the shaft doors 15 each have an electrical switch which can be actuated by the elevator car 4 and which has an electrical connection to an evaluation unit 10, which is located outside the elevator shaft 1. If the elevator car 4 is in a position in which the people in the car can leave the car 4, this is communicated to the display unit 10 in that the switch that is attached to the lock of the shaft door is actuated by the car , The person entrusted with the evacuation can then free the people in the elevator car 4 by manually opening the shaft door 15 and the elevator car door.
- the described embodiments have in common that the position detection only has to take place with such accuracy that leaving the elevator car 4 through one of the shaft doors 15 is readily possible for the people in the elevator car 4. An exact stop of the elevator car 4 on the floor is not necessary.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01921098A EP1286905B1 (en) | 2000-05-01 | 2001-04-25 | Device for detecting the position of an elevator car |
BRPI0110440-3A BR0110440B1 (en) | 2000-05-01 | 2001-04-25 | device for detecting the position of an elevator car. |
AU2001248212A AU2001248212A1 (en) | 2000-05-01 | 2001-04-25 | Device for detecting the position of an elevator car |
DE50103127T DE50103127D1 (en) | 2000-05-01 | 2001-04-25 | DEVICE FOR DETECTING THE POSITION OF A LIFT CABIN |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00810366 | 2000-05-01 | ||
EP00810366.5 | 2000-05-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001083352A2 true WO2001083352A2 (en) | 2001-11-08 |
WO2001083352A3 WO2001083352A3 (en) | 2002-04-11 |
Family
ID=8174672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2001/000260 WO2001083352A2 (en) | 2000-05-01 | 2001-04-25 | Device for detecting the position of an elevator car |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1286905B1 (en) |
CN (1) | CN1224569C (en) |
AU (1) | AU2001248212A1 (en) |
BR (1) | BR0110440B1 (en) |
DE (1) | DE50103127D1 (en) |
ES (1) | ES2225512T3 (en) |
PT (1) | PT1286905E (en) |
WO (1) | WO2001083352A2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1631517A1 (en) * | 2003-05-15 | 2006-03-08 | Otis Elevator Company | Absolute position reference system |
EP1726554A1 (en) * | 2004-03-01 | 2006-11-29 | Mitsubishi Denki Kabushiki Kaisha | Resin rope and elevator position sensor employing it |
EP1748016A1 (en) * | 2005-07-25 | 2007-01-31 | Inventio Ag | System comprising traction means for moving an elevator car and corresponding traction means |
EP2546181A1 (en) * | 2011-07-13 | 2013-01-16 | Inventio AG | Elevator installation and method for detecting the elevator car position. |
CN104016204A (en) * | 2014-06-26 | 2014-09-03 | 申龙电梯股份有限公司 | Cage flat-layer-falling prevention device in linkage with door motor |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011037580A (en) * | 2009-08-11 | 2011-02-24 | Toshiba Elevator Co Ltd | Elevator landing detection device |
BR112012031889A2 (en) | 2010-07-12 | 2017-09-26 | Otis Elevator Co | elevator system, and method for detecting speed and position of an elevator component |
CN104140019B (en) * | 2014-07-07 | 2017-05-03 | 日立电梯(中国)有限公司 | Control device and control method of elevator lift car position |
WO2016162465A1 (en) * | 2015-04-10 | 2016-10-13 | Inventio Ag | System for and method of locating a lift cage |
CN108358003B (en) * | 2018-02-05 | 2019-05-14 | 苏州钜立智能系统有限公司 | Elevator operation monitoring method |
JP7388600B2 (en) * | 2021-07-19 | 2023-11-29 | 三菱電機ビルソリューションズ株式会社 | Posture confirmation components, posture confirmation systems, and elevator systems |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5971109A (en) * | 1996-09-05 | 1999-10-26 | Kone Oy | Arrangement for releasing the brake of an elevator machinery |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5483254A (en) * | 1977-12-16 | 1979-07-03 | Mitsubishi Electric Corp | Emergency elevator cage |
JPH02231380A (en) * | 1989-03-03 | 1990-09-13 | Toshiba Corp | Position detecting device for elevator |
-
2001
- 2001-04-25 CN CN 01807856 patent/CN1224569C/en not_active Expired - Fee Related
- 2001-04-25 EP EP01921098A patent/EP1286905B1/en not_active Expired - Lifetime
- 2001-04-25 WO PCT/CH2001/000260 patent/WO2001083352A2/en active IP Right Grant
- 2001-04-25 PT PT01921098T patent/PT1286905E/en unknown
- 2001-04-25 BR BRPI0110440-3A patent/BR0110440B1/en not_active IP Right Cessation
- 2001-04-25 AU AU2001248212A patent/AU2001248212A1/en not_active Abandoned
- 2001-04-25 DE DE50103127T patent/DE50103127D1/en not_active Expired - Lifetime
- 2001-04-25 ES ES01921098T patent/ES2225512T3/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5971109A (en) * | 1996-09-05 | 1999-10-26 | Kone Oy | Arrangement for releasing the brake of an elevator machinery |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 003, no. 108 (M-072), 11. September 1979 (1979-09-11) & JP 54 083254 A (MITSUBISHI ELECTRIC CORP), 3. Juli 1979 (1979-07-03) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 545 (M-1054), 4. Dezember 1990 (1990-12-04) & JP 02 231380 A (TOSHIBA CORP), 13. September 1990 (1990-09-13) * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1631517A1 (en) * | 2003-05-15 | 2006-03-08 | Otis Elevator Company | Absolute position reference system |
EP1631517A4 (en) * | 2003-05-15 | 2009-01-07 | Otis Elevator Co | Absolute position reference system |
EP2348629A2 (en) | 2003-05-15 | 2011-07-27 | Otis Elevator Company | Absolute position reference system |
EP2348629A3 (en) * | 2003-05-15 | 2011-09-07 | Otis Elevator Company | Absolute position reference system |
EP1726554A1 (en) * | 2004-03-01 | 2006-11-29 | Mitsubishi Denki Kabushiki Kaisha | Resin rope and elevator position sensor employing it |
EP1726554A4 (en) * | 2004-03-01 | 2012-01-11 | Mitsubishi Electric Corp | Resin rope and elevator position sensor employing it |
EP1748016A1 (en) * | 2005-07-25 | 2007-01-31 | Inventio Ag | System comprising traction means for moving an elevator car and corresponding traction means |
AU2006203139B2 (en) * | 2005-07-25 | 2011-08-18 | Inventio Ag | Installation with support means for driving a lift cage, and corresponding support means |
KR101270849B1 (en) | 2005-07-25 | 2013-06-05 | 인벤티오 아게 | Installation with support means for driving a lift cage, and corresponding support means |
EP2546181A1 (en) * | 2011-07-13 | 2013-01-16 | Inventio AG | Elevator installation and method for detecting the elevator car position. |
WO2013007680A1 (en) * | 2011-07-13 | 2013-01-17 | Inventio Ag | Elevator |
CN104016204A (en) * | 2014-06-26 | 2014-09-03 | 申龙电梯股份有限公司 | Cage flat-layer-falling prevention device in linkage with door motor |
Also Published As
Publication number | Publication date |
---|---|
EP1286905B1 (en) | 2004-08-04 |
EP1286905A2 (en) | 2003-03-05 |
CN1224569C (en) | 2005-10-26 |
AU2001248212A1 (en) | 2001-11-12 |
PT1286905E (en) | 2004-12-31 |
BR0110440B1 (en) | 2011-06-14 |
DE50103127D1 (en) | 2004-09-09 |
BR0110440A (en) | 2003-04-01 |
CN1447771A (en) | 2003-10-08 |
ES2225512T3 (en) | 2005-03-16 |
WO2001083352A3 (en) | 2002-04-11 |
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