EP1577249B1 - Dispositif de surveillance de sécurité d'une cabine d'ascenseur - Google Patents

Dispositif de surveillance de sécurité d'une cabine d'ascenseur Download PDF

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Publication number
EP1577249B1
EP1577249B1 EP05002269.8A EP05002269A EP1577249B1 EP 1577249 B1 EP1577249 B1 EP 1577249B1 EP 05002269 A EP05002269 A EP 05002269A EP 1577249 B1 EP1577249 B1 EP 1577249B1
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EP
European Patent Office
Prior art keywords
lift car
elevator car
predetermined
microprocessors
speed
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.)
Active
Application number
EP05002269.8A
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German (de)
English (en)
Other versions
EP1577249A3 (fr
EP1577249A2 (fr
Inventor
Volker Heinzer
Olav Hennemann
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.)
KA Schmersal Holding GmbH and Co KG
Original Assignee
KA Schmersal Holding GmbH and Co KG
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.)
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Publication of EP1577249A2 publication Critical patent/EP1577249A2/fr
Publication of EP1577249A3 publication Critical patent/EP1577249A3/fr
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Publication of EP1577249B1 publication Critical patent/EP1577249B1/fr
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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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical

Definitions

  • the invention relates to a safety monitoring device for an elevator car.
  • a system for monitoring the operation of conveyor baskets moving in mine shafts is known.
  • a digital electronic system is provided for determining the position and speed of a conveyor basket in a mine shaft. The speed is also determined by an analog measuring device and the digitally derived speed is compared with the analog derived speed. If the difference between the two derived speeds exceeds a predetermined limit, the movement of the conveyor cage is stopped.
  • DE 101 46 044 A1 describes a method and a device for controlling the movement sequences in systems for the transportation of people, in particular in escalators and moving walks. According to DE 101 46 044 A1 Continuous safety-related redundancy is achieved in that, on the one hand, there is a control path consisting of a speed sensor, signal channel, program processor with assigned data memory and a switching relay, at least twice, and there is a comprehensive, mutually controlled safeguarding of the control paths.
  • a device for deceleration control is provided, for example.
  • the elevator shaft there are mechanical buffers on the pit and head side, which serve to brake the elevator car in an emergency.
  • this presupposes that the speed of the elevator car does not exceed a predetermined limit.
  • the brake device for the elevator car must be started early enough if the limit value is exceeded, so that a sufficient braking, which takes place according to a braking ramp, can take place in such a way that the buffers Can take over the remaining braking.
  • the device for deceleration control comprises electromechanical switches arranged at a corresponding point in the shaft, which are coupled to a safety relay module and, when they are reached, when the elevator is traveling in the direction of the buffers and the limit value for the speed is exceeded, the car braking is triggered and simultaneously the drive is switched off.
  • a bridging device for electromechanical door contacts which monitor whether the shaft door is closed, is provided.
  • the doors open a certain distance before reaching the selected floor position, i.e. when entering the latter, begin to open so that they are open when this position is reached.
  • the floor of the elevator car moves in relation to the floor level of the corresponding floor at which the elevator car stops.
  • a corresponding bridging of the door contacts is also necessary so that an adjustment to align the floor levels of the elevator car and floor can take place with the doors open.
  • Such mechanically based safety devices do not allow continuous monitoring, but only selective monitoring.
  • EP 0 694 792 B1 and EP 1 030 190 B1 is a Device for detecting the position of an elevator car, wherein a sound signal conductor with a predetermined, uniform sound propagation speed is located in the elevator shaft, while the elevator car has a signal coupler for coupling a clocked sound signal into the sound signal conductor.
  • signal decouplers are arranged, which are connected to an evaluation unit for determining the transit time difference of the coupled sound signal from the coupling point to the signal decouplers and for generating a signal representative of the current position of the elevator car in the elevator shaft.
  • the object of the invention is to provide a safety monitoring device for an elevator car that enables continuous safety monitoring.
  • the speed and possibly the acceleration (and possibly its derivation) of the elevator car are determined and compared with a predetermined movement profile, a trigger signal being generated when a predetermined target value is exceeded, so that the safety monitoring device can be used in the event of a fault for one or more of the safety functions mentioned at the beginning or later.
  • Continuous control is possible not only in relation to a specific setpoint, but in relation to a setpoint curve.
  • the elevator monitoring and control system shown is a position detection device for an elevator car 1 that can be moved along an elevator shaft A by means of a travel drive D, the latter is provided with a signal coupler 2, which serves to couple sound signals into a sound signal conductor 3 with a predetermined, uniform sound propagation speed that is along the elevator shaft extends.
  • a receiver unit 4a or 4b which comprise a signal decoupler 5 and an evaluation unit 6.
  • One of the evaluation units 6 supplies trigger signals according to a predetermined time pattern to the signal coupler 2 of the elevator car 1, which trigger the coupling of a sound signal into the sound signal conductor 3, and to the other evaluation unit 6, so that the latter also knows the respective triggering time.
  • the evaluation units 6 each separately and redundantly calculate the coupling location and thus the position of the elevator car 1.
  • the signal coupler 2 can also inform both evaluation units 6 of the time at which the sound signal is coupled in, so that both evaluation units 6 can calculate the position of the elevator car 1 separately from the predetermined, uniform sound propagation speed and the signal propagation time.
  • the outputs 7a, 7b of the evaluation units 6 serve as inputs for a safety monitoring device 8.
  • the latter communicates with an elevator control 9, via which the travel profile of the elevator car 1 is predetermined, and a safety circuit 10 for switching off the elevator drive.
  • the safety monitoring device 8 comprises two sockets 11, to which the outputs 7a, 7b of the evaluation units 6 are connected. Via an interface 12, the position signals of the evaluation units 6, which are delivered in accordance with the trigger signals in a predetermined time grid, are each passed to a microprocessor 13a or 13b, for each of which a power supply unit 14 is provided. The latter are connected to a mains-operated power supply unit 15 which is coupled to an emergency battery.
  • the microprocessors 13a, 13b communicate with one another via a line 16 for the purpose of mutual control, as a result of which a crosswise data comparison takes place, which can also be used to synchronize the two microprocessors 13a, 13b.
  • a jerky movement of the elevator car 1 can be determined momentarily depending on the location and compared with a predetermined movement profile.
  • an amplifier 18, which can possibly also act as a comparator in order to switch only when the same output signals are present from both microprocessors 13a, 13b, can be actuated via lines 17a, 17b and actuates a safety relay stage 19 which - with feedback to the Microprocessors 13a, 13b - acts on the elevator control 9 and the safety circuit 10, which is connected to a corresponding socket 20 of the safety monitoring device 8.
  • two interfaces 12 can optionally also be provided in order to be able to process signals from different types of displacement sensors.
  • a curve K1 is shown by way of example, which represents the travel profile of an elevator car 1 between two more distant floors, which is specified by the elevator control 9.
  • the curve K1 has a starting ramp up to a nominal speed v nenn starting from the time of departure and a braking ramp from the latter to the time of arrival.
  • exemplary illustrated curve K2 If it is the driving profile between two closely spaced levels, wherein the rated speed v nom not achieved.
  • the speed of the elevator car 1 is exceeded due to a fault by a predetermined amount, which is determined as a percentage or according to a target curve S1 (here for the curve K1), the speed is in a prohibited range.
  • a predetermined amount which is determined as a percentage or according to a target curve S1 (here for the curve K1)
  • the microprocessors 13a, 13b emit a corresponding signal simultaneously or within a time window, which causes the travel drive to be stopped via the safety relay stage 19.
  • a device for speed limitation of the elevator car 1 is formed, which not only reacts to a predetermined exceeding of v nenn , but also a speed profile and is accordingly more reactive.
  • the safety monitoring device 8 can at the same time be used as a device for deceleration control, in that when it is determined at a specific point in the elevator shaft A that the current speed of the elevator car 1 exceeds a predetermined amount (not necessarily v nominal ) so that braking by buffers located in the elevator shaft A is no longer guaranteed, the microprocessors 13a, 13b simultaneously or within a time window emit a corresponding signal that the safety relay stage 19 stops the Drive and triggers the braking device. - As a result, smaller buffers can be used, or one can do without them entirely.
  • the safety monitoring device 8 can be used as a control for driving in with open doors.
  • the instantaneous speed of the elevator car 1 and its position, ie its distance from the next stop, must be checked again.
  • a request signal from a user from the elevator car 1 or from the corresponding floor must be present, for example via a socket 21 of the safety monitoring device 8 and an interface 22 is given to the microprocessors 13a, 13b.
  • the request signal arrives too late because the user has pressed the corresponding button too late, the speed is too high and the microprocessors 13a, 13b do not emit a bridging signal for the door contacts, so that the opening of the doors either does not occur before the elevator car comes to a standstill 1 can be started or the elevator car 1 even drives through.
  • a bypass signal for the door contacts is to be emitted by the safety monitoring device 8 so that the elevator car 1 can be moved accordingly when the doors are open.
  • a corresponding authorization signal must first be present, for example by means of a key-operated switch, so that, in turn, the safety monitoring device 8 emits a bridging signal for the door contacts, so that the elevator car 1 can be moved within a predetermined distance interval, via the position of the elevator car 1 is controlled by the microprocessors 13a, 13b.
  • a signal for stopping the travel drive D is then generated at the limits of the distance interval.
  • the safety monitoring device 8 can also be used to create a virtual protective space, for example on the top and / or pit side of the elevator shaft A, for example when carrying out work in this area, i.e. that the travel distance of the elevator car 1 is correspondingly limited with a corresponding request signal, so that penetration into the virtual shelter is prevented.
  • microprocessors 13a, 13b can also be used in relation to the acceleration and the derivation thereof (the latter for evaluating jerky movements).
  • the evaluation units 6 only provide a corresponding signal preparation for the position signals, while the microprocessors 13a, 13b themselves take over the actual calculation of the position of the elevator car 1.
  • a diagnostic LED display 23 can be coupled to the microprocessors 13a, 13b.
  • the safety relays 19 can also have their own power supply unit 24, which in turn is monitored by the microprocessors 13a, 13b.
  • the respective position of the elevator car 1 is either transmitted from the position detection device via a line 25 or from one of the microprocessors 13a, 13b to the elevator controller 9. Via an input device 26 in the form of a keyboard or the like. the microprocessors 13a, 13b can be entered. Nevertheless, the data can also be obtained from the elevator controller 9 via the line 25.
  • the corresponding starting or braking ramp or the complete movement profile or the switching points derived therefrom, if these are not specified by the elevator control 9, can be supplied by one of the microprocessors 13a, 13b to the elevator control 9 via a data bus or relay driver 27. If necessary, an exit 28 can also be present, which indicates the level flushness of elevator car 1 and floor.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (8)

  1. Dispositif de surveillance de sécurité pour une cabine d'ascenseur (1) pouvant être déplacée dans une cage d'ascenseur (A) au moyen d'un entraînement de déplacement (D) par l'intermédiaire d'une commande d'ascenseur (9), dont la position instantanée peut être détectée au moyen d'un dispositif de détection de position, avec une évaluation à deux canaux de signaux de position par respectivement un microprocesseur (13a, 13b) de définition de manière instantanée et en fonction de l'emplacement de la vitesse de la cabine d'ascenseur (1) et de comparaison à un profil de déplacement spécifié, dans lequel lors du dépassement d'une valeur de consigne de vitesse instantanée prédéfinie, un signal de déclenchement pouvant être émis par l'intermédiaire d'un étage de relais de sécurité (19) peut être généré, caractérisé en ce que le dispositif de détection de position fournit deux signaux de position créés indépendamment l'un de l'autre dans une trame temporelle prédéfinie, et les microprocesseurs (13a, 13b) communiquent entre eux par l'intermédiaire d'une ligne (16) aux fins d'un contrôle mutuel, ce qui a pour effet qu'une comparaison de données croisée a lieu.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'accélération instantanée et/ou la dérivée instantanée de l'accélération du déplacement de la cabine d'ascenseur (1) peuvent être définies par les microprocesseurs (13a, 13b) et peuvent être comparées au profil de déplacement spécifié, dans lequel lors du dépassement d'une valeur de consigne prédéfinie, un signal de déclenchement peut être généré.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les microprocesseurs (13a, 13b) peuvent être synchronisés par une comparaison de données croisée.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'un contrôle de temporisation peut être réalisé avec un déclenchement de l'arrêt de l'entraînement de déplacement et un freinage de la cabine d'ascenseur (1).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'une limitation de vitesse de la cabine d'ascenseur (1) peut être réalisée avec un déclenchement de l'arrêt de l'entraînement de déplacement et un freinage de la cabine d'ascenseur (1).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'une entrée de la cabine d'ascenseur (1) dans une position de maintien et/ou un réajustement de la position de maintien de la cabine d'ascenseur (1) et/ou un contrôle de déplacement sur rampe peuvent être réalisés respectivement lorsque des portes sont ouvertes moyennant le pontage de commutateurs de porte.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un espace de protection virtuel d'une longueur spécifiée dans au moins une zone d'extrémité de la cage d'ascenseur (A) peut être généré temporairement.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la fonction de commutateurs d'urgence de fin de course peut être exécutée.
EP05002269.8A 2004-02-20 2005-02-03 Dispositif de surveillance de sécurité d'une cabine d'ascenseur Active EP1577249B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004009250A DE102004009250A1 (de) 2004-02-20 2004-02-20 Sicherheitsüberwachungseinrichtung für eine Aufzugskabine
DE102004009250 2004-02-20

Publications (3)

Publication Number Publication Date
EP1577249A2 EP1577249A2 (fr) 2005-09-21
EP1577249A3 EP1577249A3 (fr) 2008-05-28
EP1577249B1 true EP1577249B1 (fr) 2020-05-13

Family

ID=34833045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002269.8A Active EP1577249B1 (fr) 2004-02-20 2005-02-03 Dispositif de surveillance de sécurité d'une cabine d'ascenseur

Country Status (7)

Country Link
US (1) US7438158B2 (fr)
EP (1) EP1577249B1 (fr)
JP (1) JP2005231897A (fr)
CN (1) CN100581972C (fr)
BR (1) BRPI0500593A (fr)
CA (1) CA2491806C (fr)
DE (1) DE102004009250A1 (fr)

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DE10301504B3 (de) * 2003-01-17 2004-10-21 Phoenix Contact Gmbh & Co. Kg Einsignalübertragung sicherer Prozessinformation
DE102004058756A1 (de) * 2004-12-06 2006-06-14 Siemens Ag Geschwindigkeitsüberwachungsverfahren in einem Automatisierungssystem für eine Förderanlage
DE502005001371D1 (de) * 2005-01-07 2007-10-11 Thyssen Krupp Aufzuege Gmbh Aufzugsanlage mit einer Steuervorrichtung
EP2682360B1 (fr) * 2006-11-20 2016-08-10 Mitsubishi Electric Corporation Système élévateur
EP2511218B1 (fr) 2009-01-07 2014-05-14 K. A. Schmersal GmbH & Co. KG Procédé de surveillance de la dilatation d'une cage d'ascenseur
DE102009037347A1 (de) * 2009-08-14 2011-02-17 K.A. Schmersal Holding Gmbh & Co. Kg Elektronisches Sicherheitssystem für einen Aufzug
FI122598B (fi) 2011-04-01 2012-04-13 Kone Corp Menetelmä hissijärjestelmän toimintakunnon valvomiseksi
EP2594519A1 (fr) * 2011-11-15 2013-05-22 Inventio AG Ascenseur doté d'un dispositif de sécurité
EP2914529B1 (fr) * 2012-10-30 2016-12-14 Inventio AG Dispositif de surveillance du déplacement d'un système d'ascenseur
CN105164039B (zh) * 2013-02-26 2018-01-09 通力股份公司 电梯结构测试
CN103818794B (zh) * 2014-03-03 2016-06-08 中山市卓梅尼控制技术有限公司 防止电梯轿厢意外移动的保护装置
DE102014113341A1 (de) * 2014-09-16 2016-03-17 Manfred Lienemann Verfahren zum Betrieb einer Aufzuganlage und Aufzuganlage für Personen und/oder Lasten
DE102015211488A1 (de) 2015-06-22 2016-12-22 Thyssenkrupp Ag Sicherheitseinrichtung einer Aufzugsanlage
WO2017203658A1 (fr) * 2016-05-26 2017-11-30 三菱電機株式会社 Système de gestion d'entrée/sortie
EP3403967B1 (fr) * 2017-05-15 2019-07-03 KONE Corporation Agencement de coupure de courant d'un ascenseur
JP7140634B2 (ja) * 2018-10-30 2022-09-21 株式会社日立製作所 エレベーターの制御システム
CN109436992B (zh) * 2018-11-19 2020-03-20 湛江市软件研究所 一种具有防撞功能的监控设备
EP3892579A1 (fr) * 2020-04-06 2021-10-13 Otis Elevator Company Systèmes de sécurité d'ascenseur

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Also Published As

Publication number Publication date
CA2491806C (fr) 2011-05-31
EP1577249A3 (fr) 2008-05-28
US20050230191A1 (en) 2005-10-20
CN100581972C (zh) 2010-01-20
DE102004009250A1 (de) 2005-09-08
JP2005231897A (ja) 2005-09-02
BRPI0500593A (pt) 2005-10-04
CA2491806A1 (fr) 2005-08-20
EP1577249A2 (fr) 2005-09-21
US7438158B2 (en) 2008-10-21
CN1657390A (zh) 2005-08-24

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