EP2465804A1 - Ascenseur à plusieurs cabines doté d'un affichage de l'état de freinage - Google Patents

Ascenseur à plusieurs cabines doté d'un affichage de l'état de freinage Download PDF

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Publication number
EP2465804A1
EP2465804A1 EP10195340A EP10195340A EP2465804A1 EP 2465804 A1 EP2465804 A1 EP 2465804A1 EP 10195340 A EP10195340 A EP 10195340A EP 10195340 A EP10195340 A EP 10195340A EP 2465804 A1 EP2465804 A1 EP 2465804A1
Authority
EP
European Patent Office
Prior art keywords
elevator car
elevator
brake
brake state
braking state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10195340A
Other languages
German (de)
English (en)
Inventor
Hans Kocher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP10195340A priority Critical patent/EP2465804A1/fr
Priority to EP11790958.0A priority patent/EP2651805A1/fr
Priority to PCT/EP2011/071312 priority patent/WO2012079974A1/fr
Priority to US13/314,710 priority patent/US20120152656A1/en
Publication of EP2465804A1 publication Critical patent/EP2465804A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons

Definitions

  • the present invention relates to an elevator with two independently movable elevator cars and a method for safe operation of this elevator, in particular for avoiding a collision between the two elevator cars.
  • the computing power of the security system in such a monitoring is relatively large. Because the safety system must also be in normal operation of the elevator, even if the permissible safety distances between two elevator cars are met, the positions and speeds of the elevator cars are continuously known and evaluated.
  • the second elevator car By means of the display of the braking state by the first brake state display unit of the first elevator car, a potentially dangerous situation is displayed in a simple manner of the second elevator car. If, for example, the first elevator car is braking, the second elevator car could enter the first elevator car without initiating suitable measures.
  • At least one arithmetic unit When detected change in the braking state of the first elevator car at least one arithmetic unit is activated, which checks the distance between the first and the second elevator car and acts when falling below a permissible safety distance at least one driving parameter of the first and / or the second elevator car.
  • the arithmetic unit can be designed, for example, as a central elevator control or as a decentralized safety control, which is arranged on the second elevator car. Furthermore, the arithmetic unit of several centrally or decentrally arranged control units can be built, which communicate with each other. In such a structure, the individual control units assignable tasks are assignable. For example, a central control unit takes over the control of the elevator cars in normal operation and a plurality of decentralized safety controllers, which are each associated with an elevator car, monitor the distance between the elevator cars and prevent a collision.
  • a permissible safety distance is understood to be a distance between the two elevator cars which is just sufficient to decelerate the second elevator car safely without the second elevator car moving into the first elevator car.
  • the permissible safety distance is essentially dependent on the speed of the elevator cars and the effectiveness of influencing a driving parameter of an elevator car. For example, how much a following elevator car can be braked or how fast a preceding elevator car can be accelerated.
  • the permissible safety distance is therefore preferably calculated in the arithmetic unit.
  • the allowable safety distance is fixed and is stored in the arithmetic unit, with sufficiently large safety reserves are taken into account, even in the worst case, to prevent a collision.
  • the advantage of the targeted activation of the arithmetic unit lies in the fact that the arithmetic unit only monitors the distance between two elevator cars when the second elevator car approaches potentially approaching the first elevator car, for example when a preceding elevator car is braking. Therefore, the computing power to be performed by the computing unit or the data exchange between participating systems can be kept low.
  • the elevator to be operated at least via a shaft information system that communicates with the arithmetic unit.
  • the shaft information system transmits at least the position of the first and the second elevator car to the arithmetic unit. Based on this information, the arithmetic unit calculates the current distance between the first and the second elevator car and compares this with the permissible safety distance.
  • the shaft information system can also transmit the speed or acceleration of the elevator cars to the computing unit. By means of this additional information, a time-permissible permissible safety distance can be determined.
  • each of the first and second elevator cars is driven by an associated first and second drive.
  • each of the first and second drives is equipped with an associated drive brake.
  • the first and the second elevator car are each equipped with a cabin brake. In this case, drives, drive brakes, and the cabin brakes are each driven directly or indirectly by the arithmetic unit.
  • the method relates to an elevator in which the first and the second elevator car be moved under observance of a prevailing direction of travel.
  • the first elevator car of the second elevator car drives in the direction of the prevailing direction of travel, until all destinations are operated in the prevailing direction of travel. Thereafter, the prevailing direction of travel is reversed.
  • At least one driving parameter of at least one of the two elevator cars is intervened as described above. Intervention on a driving parameter involves one or more measures to prevent a collision. These are the acceleration of the first elevator car by the first drive, deceleration of the second elevator car by the second drive, deceleration of the second elevator car by the associated drive brake and deceleration of the second elevator car by the associated cabin brake.
  • the first brake state display unit has at least one first light source and the first brake state detection unit has at least one first photosensitive sensor region.
  • the first light source indicates a braking state of the first elevator car by emitting at least one light effect
  • the first sensor region detects at least one of these light effects.
  • the light effect can also be used to indicate the intensity of the brake state on which the braking mode is based.
  • an emergency stop with the associated drive brake or a catch with the associated cabin brake with increasing light intensity of the light source or different assignable shades can be displayed.
  • the invention relates to an elevator for carrying out the method.
  • the FIG. 1 shows an elevator 1 with at least two elevator cars 2, 3. Each of these elevator cars 2, 3 is substantially along a common Lane 4 can be moved independently.
  • the lane 4 is defined by a pair of car guide rails 5.1, 5.2 installed in a hoistway.
  • the elevator cars 2, 3 are each suspended on a support means 8, 9.1, 9.2.
  • the suspension ratio of 1: 1 shown here is a common suspension ratio in elevator construction.
  • the skilled person is free to choose a deviating higher suspension ratio of 2: 1, 3: 1 or higher.
  • the first elevator car 2 is suspended at a first suspension point 21 on a first support means 8.
  • the suspension point 21 preferably lies centrally on the upper side of the elevator car 2. From the first suspension point 21, the suspension element extends upwards into the upper area of the elevator shaft.
  • the first counterweight is also suspended from the first support means 8 and balances the weight of the first elevator car 2.
  • a second elevator car 3 is attached to second and third suspension points 31.1, 31.2 on a second suspension element, which comprises two second suspension element strands 9.1, 9.2.
  • the second Elevator car 3 is preferably suspended in its lower region on opposite sides on the second suspension element strands 9.1, 9.2.
  • the suspension element strands 9.1, 9.2 run laterally past the first elevator car 2 upwards into the upper region of the elevator shaft.
  • the second suspension element strands 9.1, 9.2 are again guided downwards to a second counterweight.
  • the second counterweight is finally also suspended from the second suspension element strands 9.1, 9.2 and balances the weight of the second elevator car 3 from.
  • the first and second traction sheaves are each driven by a first and second drive.
  • the first and second drives transmit by means of the respectively assigned traction sheave a drive torque to the first and second support means 8, 9.1, 9.2. Accordingly, the two elevator cars 2, 3 largely independent of each other by an associated drive movable.
  • the first and second drives each have an associated drive brake.
  • the elevator 1 is furthermore equipped with a safety system.
  • This safety system has at least brake state display means 25, brake state detection means 36 and a computing unit 22, 32.
  • each elevator car 2, 3 is associated with a computing unit 22, 32, a brake state display unit 25 and with a brake state detection unit 36.
  • a first brake state display unit 25 of the first elevator car 2 traveling in the travel direction A and a second brake state detection unit 36 of the second elevator car 3 following in the direction of travel B are shown.
  • the elevator 1 has a shaft information system.
  • This shaft information system comprises, for example, a code strip 7 with code marks and, per elevator car 2, 3, a sensor 24, 34 for reading the code marks.
  • the code strip 7 is mounted along the roadway 4 in the shaft space.
  • the code marks preferably represent a unique, unmistakable position information.
  • each elevator car 2, 3 is assigned a decentralized operating unit 22, 32, each with the brake state display unit 25, the brake state detection unit 36, the cabin brakes 23.1, 23.2, 33.1, 33.2 and the sensors 24, 34 assigned to an elevator car 2, 3 communicates.
  • the arithmetic unit 22, 32 communicates with a central elevator control 6 and is in indirect communication with the first and second drives via this, and their associated drive brakes. Via the central control unit 6, a respective computer unit 22, 32 also has information about the position and speed of the respective other elevator car 3, 2.
  • the deceleration or deceleration of the preceding elevator car 2 is due to different operating situations. For example, the travel of the preceding elevator car 2 is slowed down when entering a floor by means of the associated drive. In an emergency stop, however, the elevator car 2 is braked with the associated drive brake. Tearing of the support means 8 even has the intervention of the associated cabin brake 23.1, 23.2 result. Each of these braking maneuvers causes a change in the braking state of the first elevator car 2.
  • the brake state display 25 indicates a change of the braking state of the preceding elevator car 2.
  • the brake state indicator 25 is equipped for this purpose, for example with a light source.
  • Changing the braking state is displayed by means of a light effect of the light source.
  • the braking state of the preceding elevator car 2 is detected by the brake state detection unit 36 of the following elevator car.
  • the brake state detection unit 36 is equipped, for example, with a photosensitive sensor which detects the light effects emitted by the brake state display.
  • transceiver pairs designed to receive and receive optical waves, such as the light source and the photosensitive sensor, to use other transceiver pairs.
  • further transceiver pairs can be used, for example, radio waves, sound waves, infrared waves or the like, send or receive, with which a change in the braking state of the preceding elevator car 2 can be displayed.
  • the arithmetic unit 32 Upon detecting a change in the braking state by the brake state detection unit 36, the arithmetic unit 32 is activated. The arithmetic unit 32 checks the current distance D between the two elevator cars 2 and 3. For this purpose, the arithmetic unit 32 queries the shaft information system about the current positions or speeds of the elevator cars 2 and 3.
  • the example shown relates to a snapshot in which the upper elevator car 2 moves ahead in a direction A and the lower elevator car 3 moves in a same direction B of the upper elevator car 2.
  • the invention can be applied to a reverse direction in which the lower elevator car 3 moves ahead in a direction opposite to the direction B and the upper elevator car 2 moves in a direction opposite to the direction A of the lower elevator car 3.
  • the lower elevator car 3 is also equipped with its own brake state display unit which indicates a change in the braking state.
  • the following upper elevator car 2 also has its own brake state detection unit, with which a change in the braking state of the now preceding second elevator car 3 can be detected. A collision between the two elevator cars 2 and 3 is prevented analogously to the statements in a preceding upper elevator car 3.

Landscapes

  • Elevator Control (AREA)
EP10195340A 2010-12-16 2010-12-16 Ascenseur à plusieurs cabines doté d'un affichage de l'état de freinage Withdrawn EP2465804A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10195340A EP2465804A1 (fr) 2010-12-16 2010-12-16 Ascenseur à plusieurs cabines doté d'un affichage de l'état de freinage
EP11790958.0A EP2651805A1 (fr) 2010-12-16 2011-11-29 Ascenseur à plusieurs cabines doté d'un affichage de l'état des freins
PCT/EP2011/071312 WO2012079974A1 (fr) 2010-12-16 2011-11-29 Ascenseur à plusieurs cabines doté d'un affichage de l'état des freins
US13/314,710 US20120152656A1 (en) 2010-12-16 2011-12-08 Multi-cage elevator with braking state indication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10195340A EP2465804A1 (fr) 2010-12-16 2010-12-16 Ascenseur à plusieurs cabines doté d'un affichage de l'état de freinage

Publications (1)

Publication Number Publication Date
EP2465804A1 true EP2465804A1 (fr) 2012-06-20

Family

ID=44009957

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10195340A Withdrawn EP2465804A1 (fr) 2010-12-16 2010-12-16 Ascenseur à plusieurs cabines doté d'un affichage de l'état de freinage
EP11790958.0A Withdrawn EP2651805A1 (fr) 2010-12-16 2011-11-29 Ascenseur à plusieurs cabines doté d'un affichage de l'état des freins

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11790958.0A Withdrawn EP2651805A1 (fr) 2010-12-16 2011-11-29 Ascenseur à plusieurs cabines doté d'un affichage de l'état des freins

Country Status (3)

Country Link
US (1) US20120152656A1 (fr)
EP (2) EP2465804A1 (fr)
WO (1) WO2012079974A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2250114A1 (fr) * 2008-03-06 2010-11-17 Inventio AG Système élévateur et procédé de maintenance d un tel système élévateur
EP2607282A1 (fr) * 2011-12-23 2013-06-26 Inventio AG Dispositif de sécurité pour un ascenseur doté de plusieurs cabines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769469B1 (fr) 1995-10-17 2003-12-17 Inventio Ag Dispositif de sécurité pour groupes d'ascenseur multi-mobiles
EP1894874A1 (fr) * 2006-08-31 2008-03-05 Inventio Ag Dispositif de sécurité pour ascenseur
US20080236954A1 (en) * 2006-12-21 2008-10-02 Hans Kocher Method of preventing collision of two elevator cars movable in the same shaft of an elevator installation, and corresponding elevator installation
WO2010072714A1 (fr) * 2008-12-23 2010-07-01 Inventio Ag Système d'ascenseur

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419414A (en) * 1993-11-18 1995-05-30 Sakita; Masami Elevator system with multiple cars in the same hoistway
JPH07187525A (ja) * 1993-11-18 1995-07-25 Masami Sakita 複数ばこエレベータシステム
DE50306235D1 (de) * 2003-04-30 2007-02-15 Thyssenkrupp Elevator Ag Aufzuganlage sowie verfahren zum steuern einer aufzuganlage
WO2006088456A1 (fr) * 2005-02-17 2006-08-24 Otis Elevator Company Prevention de collision dans un puits dote de deux cages d'ascenseur
EP1698580B1 (fr) * 2005-03-05 2007-05-09 ThyssenKrupp Aufzugswerke GmbH Système s'ascenseur
CN101568482B (zh) * 2006-12-22 2013-12-25 奥蒂斯电梯公司 在单个井道中具有多个车厢的电梯系统
ES2499340T3 (es) * 2007-08-07 2014-09-29 Thyssenkrupp Elevator Ag Sistema de elevador
JP2010538948A (ja) * 2007-09-18 2010-12-16 オーチス エレベータ カンパニー かご離間制御を含む多かご昇降路
WO2010072660A1 (fr) * 2008-12-26 2010-07-01 Inventio Ag Commande d'ascenseur pour une installation d'ascenseur
US8424651B2 (en) * 2010-11-17 2013-04-23 Mitsubishi Electric Research Laboratories, Inc. Motion planning for elevator cars moving independently in one elevator shaft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769469B1 (fr) 1995-10-17 2003-12-17 Inventio Ag Dispositif de sécurité pour groupes d'ascenseur multi-mobiles
EP1894874A1 (fr) * 2006-08-31 2008-03-05 Inventio Ag Dispositif de sécurité pour ascenseur
US20080236954A1 (en) * 2006-12-21 2008-10-02 Hans Kocher Method of preventing collision of two elevator cars movable in the same shaft of an elevator installation, and corresponding elevator installation
WO2010072714A1 (fr) * 2008-12-23 2010-07-01 Inventio Ag Système d'ascenseur

Also Published As

Publication number Publication date
US20120152656A1 (en) 2012-06-21
WO2012079974A1 (fr) 2012-06-21
EP2651805A1 (fr) 2013-10-23

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