EP2741989B1 - Surveillance de fonctionnement d'un élément de sécurité - Google Patents

Surveillance de fonctionnement d'un élément de sécurité Download PDF

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Publication number
EP2741989B1
EP2741989B1 EP12746315.6A EP12746315A EP2741989B1 EP 2741989 B1 EP2741989 B1 EP 2741989B1 EP 12746315 A EP12746315 A EP 12746315A EP 2741989 B1 EP2741989 B1 EP 2741989B1
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EP
European Patent Office
Prior art keywords
processing unit
signal
control unit
safety
unit
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.)
Revoked
Application number
EP12746315.6A
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German (de)
English (en)
Other versions
EP2741989A1 (fr
Inventor
Astrid Sonnenmoser
Martin Hess
David Michel
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Inventio AG
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Inventio AG
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Filing date
Publication date
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Application filed by Inventio AG filed Critical Inventio AG
Priority to EP12746315.6A priority Critical patent/EP2741989B1/fr
Publication of EP2741989A1 publication Critical patent/EP2741989A1/fr
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Classifications

    • 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
    • B66B13/22—Operation of door or gate contacts
    • 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
    • B66B5/0037—Performance analysers

Definitions

  • the invention relates to a method for checking the operability of at least one security element of a security circuit of an elevator installation, in which at least one security element a first and a second processing unit are used and the at least one security element is connected via a communication network with a control unit.
  • Conventional elevator systems have safety circuits consisting of series-connected safety elements.
  • these security elements monitor the condition of manhole or cabin doors.
  • Such a security element may be a door contact, a latch contact, a buffer contact, a flap contact, a sensor, an actuator, a drive switch, an emergency stop switch, etc.
  • An open contact shows that z. B. a door is open and a potentially inadmissible door condition has occurred. If an inadmissible open state of the doors is now identified when the contact is open, then the safety circuit is interrupted, which has the consequence that a drive or brakes, which act on the travel of an elevator car, bring the elevator car to a standstill.
  • a safety system or a safety circuit for an elevator system which has a control unit and at least one security element and a bus as the communication network.
  • the bus or safety bus enables communication between the at least one security element and the control unit.
  • the security element can, for. B. monitor the condition of manhole and cabin doors.
  • the at least one security element consists of a receiver and a transmitter.
  • the document EP1427662 describes a safety system with safety bus.
  • the safety bus is used to enable safe and reliable monitoring of hoistway doors of an elevator installation.
  • the document EP1427660 describes a safety system with safety bus, which allows an evaluation of the state of cabin and shaft doors.
  • bus or bus system is, for example, in the book Bus systems, parallel and serial bus systems, local networks, by Georg Desirber, R. Oldenbourg Verlag Kunststoff Vienna 1987, ISBN 3-486-20120-4 , described.
  • a safety system or a safety circuit for elevator systems with the use of a bus system must be carried out safely. Otherwise, for example, undefined states or misinterpretations can occur.
  • the query of the security elements of the security system over the security bus should be absolutely safe and reliable.
  • the requirements for safe safety elements are specified in various safety standards, such as in the European standard IEC 61508.
  • the European Standard IEC 61508 contains the minimum requirements in order to increase the safety in systems and electrical installations.
  • this standard defines four so-called safety integrity levels SIL1 to SIL4, which are regarded as measures for the operational safety of a plant or a system.
  • the safety integrity level SIL4 is the highest level of operational safety.
  • An object of the invention is to propose a simple and efficient method for checking the functionality of safety elements of a safety circuit of an elevator installation.
  • a core of the invention is that for checking the functionality of a security element of a security circuit of a lift installation, a first processing unit of the security element provides at least one signal from a control unit due to at least one message that a second processing unit detects the provided at least one signal and transmits it to the control unit and that the transmitted at least one signal in terms of its validity is checked by the control unit.
  • the first and the second processing unit are connected to each other.
  • the at least one security element is connected to the control unit via a communications network.
  • a communication network a wireline or wireline communication network such as a landline, a mobile communication network, a radio communication network, a bus system, etc. may be used.
  • first and the second processing unit of the at least one security element are directly connected to each other.
  • a direct connection means that the first processing unit is connected via an output of the first processing unit to an input of the second processing unit and / or vice versa.
  • first and second processing unit z. B. microprocessors used.
  • the first and the second processing unit can have different instruction sets. This means that the two processing units u. a. different functionalities, different tasks etc. So z. B. a communication between the first and the second processing unit can be initiated only by the second processing unit. Furthermore, it could be provided that only the first processing unit can provide at least one signal, for example in that the first processing unit generates or generates this signal.
  • the second processing unit may have a different priority from the first processing unit and vice versa for communication with the control unit.
  • the priority determines a ranking for communication with the control unit. This means, for example, that in a simultaneous communication attempt of the first and the second processing unit, the control unit communicates with that processing unit having the higher priority.
  • the at least one provided signal can be arbitrary. It can be either digital or analog. In this case, as a signal, for example, a bit sequence, a signal with a particular or defined frequency, a sound sequence, a pattern, a message, etc. are used.
  • the at least one signal provided by the first processing unit can either be contained in the at least one message from the control unit or it can be generated or generated by the first processing unit.
  • the verification of the functionality of the at least one security element of the safety circuit of the elevator system can be carried out in dependence on at least one rule.
  • the at least one rule to be used may be arbitrary.
  • a frequency, a time, a time, etc. could be used as a check for at least one rule.
  • Frequency defines or specifies how often and at which intervals a check should take place.
  • other rules could be defined.
  • another rule could be that after a maintenance, after a fault, etc. of the elevator system, a check is made.
  • An advantage of the invention is that it can be determined in a simple manner whether the safety chain of the elevator installation or the at least one safety element of the safety circuit is functional.
  • a further advantage of the invention is that the method according to the invention and the device according to the invention satisfy the operational safety requirement specified in the European Standard IEC 61508 at least in accordance with SIL 3.
  • FIG. 1 shows a simplified example of a security element 3 of a safety circuit of an elevator system.
  • a security element 3 components of an elevator system are monitored, such as the opening or closing state of (shaft) elevator doors, the opening or closing state of a Elevator car door, the position of an elevator car, the rope tension of a suspension of the elevator system, the state of an elevator brake etc.
  • the security elements 3 are arranged at or near the components of the elevator system and connected via a communication network 2 with a control unit 1, wherein as the control unit 1, an elevator control unit of the elevator installation or a separate control unit can be used.
  • a wired or a wireless communication network can be used. So z.
  • a landline a mobile communication network, a wireless communication network, a bus system, etc. are used.
  • the security element 3 has at least one first processing unit 5 and a second processing unit 6, a transmitting and receiving unit 4 for communication with the control unit 1 and a detection or interrogation unit 7.
  • a contactless door monitoring unit is used as the security element 3.
  • RFID radio frequency identification
  • RFID radio-frequency identification
  • a magnet or the like for example, attached to an elevator door, not shown, an elevator car door, a flap, etc.
  • the monitored unit 8 is within range of the detection or interrogation unit 7, for example a radio frequency transmission / reception unit, of the security element 3.
  • the detection or interrogation unit 7 transmits at least one corresponding signal, for example a message, a digital signal, an analog signal, etc., to the second processing unit 6.
  • the second processing unit 6 checks or processes the at least one signal and transmits at least one (alarming) signal, a message, a digital signal, an analog signal, etc., via the transmitting and receiving unit 4 to the control unit 1.
  • the second processing unit 6 forwards the signal obtained from the detection or interrogation unit 7 without checking or processing via the transmitting and receiving unit 4 to the control unit 1 and the control unit 1 carries out the checking or processing of the signal.
  • the review or Processing serves to determine whether an unsafe condition prevails, that is, whether, for example, the elevator door has been opened, a sensor unit has detected safety-critical data, an override switch has been run over by the elevator car of the elevator installation, etc.
  • This check or processing by the control unit 1 or is performed by the second processing unit 6 depends on the obtained at least one signal. So could be z. B. a comparison with existing signals are performed, calculated a deviation, etc.
  • the security element 3 is able to transmit a signal detected by the detection or interrogation unit 7 to the control unit 1 or to report an unsafe condition due to a check or processing of the signal in the second processing unit 6 , the functionality of the safety element 3 must be tested or tested.
  • At least one message is sent from the control unit 1 to the first processing unit 5.
  • the first processing unit 5 provides at least one signal on the basis of this at least one message.
  • the signal provided can be arbitrary.
  • a digital signal, an analog signal, etc. can be used.
  • a bit sequence, a pattern, a tone sequence, a picture sequence, a signal with a frequency, etc. may be used as the signal.
  • the message can also be arbitrary.
  • a digital signal, an analog signal, a signaling message of a communication network, a text message, etc. could be used.
  • the first processing unit 5 may receive from the control unit 1 the at least one message requesting, as in this embodiment, a signal having a certain frequency.
  • the at least one signal provided by the first processing unit 5 with the frequency can either be created or generated by the first processing unit 5 or may be contained in the at least one message from the control unit 1.
  • the at least one signal provided is detected by the second processing unit 6 connected to the first processing unit 5.
  • the first processing unit 5 and the second processing unit 6 can directly with the connection 14 be connected to each other.
  • the first processing unit 5 is connected via an unillustrated output and / or input via the connection 14 to an input and / or output, not shown, of the second processing unit 6.
  • the connection 14 may be wired or unguided.
  • the detection of the at least one signal by the second processing unit 6 can take place, for example, by the second processing unit 6 being automatically and / or unsolicitedly transferred the at least one signal from the first processing unit 5 or picked up at the first processing unit 5, ie. H. the first processing unit 5 behaves passively. However, this also makes it possible to detect that the second processing unit 6 of the first processing unit 5 sends a request message and the first processing unit 5 then transmits the at least one signal to the second processing unit 6.
  • the at least one signal detected by the second processing unit 6 is transmitted to the control unit 1 via the communication network.
  • the control unit 1 checks the at least one transmitted signal in terms of its validity, d. H. the control unit 1 compares the at least one transmitted signal with the signal requested in the at least one message to the first processing unit 5 or the signal contained in this message. Do not the signals correspond to each other, d. H. the at least one transmitted signal is invalid, the control unit 1 could assume that the communication between the at least one security element 3 and the control unit 1 via the communication network is faulty and the security chain is thus inoperative. Also, the control unit 1 could assume that the security element 3 is faulty or inoperable.
  • the function check of the at least one security element 3 described above can be carried out as a function of at least one rule.
  • the at least one rule can be arbitrary.
  • the frequency, the time and / or the time for the functional check can be regulated as at least one rule.
  • a rule could be that after a maintenance or conversion or modernization of the elevator installation a function check should take place.
  • first processing unit 5 and the second processing unit 6 for example, a microprocessor, a circuit or the like may be used, for example.
  • the two processing units 5, 6 may have different instruction sets. By this it is meant that the first processing unit 5 has either fewer functions or other functions than the second processing unit 6 and vice versa.
  • first processing unit 5 could have the function of generating the at least one signal.
  • the first processing unit 5 could have no function for transmitting at least one signal to the control unit 1.
  • first processing unit 5 and the second processing unit 6 may have different priorities for communication with the control unit 1.
  • control unit 1 could preferably treat a message or a signal from the second processing unit 6.
  • FIG. 2 shows an elevator system with a safety circuit and therein contained security elements 3 for performing the method, as shown in FIG. 1 is described.
  • the method according to the invention can be used in any elevator systems, such as a hydraulic elevator, a traction sheave elevator, etc.
  • a traction sheave elevator is shown.
  • An elevator car 13 moves vertically by means of a motor 10 in an elevator shaft 12.
  • the elevator car 13 is suspended on a suspension element 9.
  • Counterweight to the elevator car 13 moves a counterweight 11, which is connected via the support means 9, for example a rope, a wire rope with a round cross section, a belt with a rectangular cross section, a belt with a round or oval cross section, etc. with the elevator car 13.
  • the elevator car 13 drives the individual floors 0. SW to 4.
  • the elevator installation has at least one control unit 1.
  • security elements 3 are connected to the control unit 1, which is referred to as a security circuit.
  • the communications network 2 used is a security bus with a star-shaped network architecture.
  • a safety bus or bus system with a serial network architecture is conceivable.
  • the individual security elements 3 can thereby at the elevator doors, not shown, on the individual floors 0. SW to 4. SW, in the elevator car 13, in the motor 10 and in the shaft 12.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Alarm Systems (AREA)
  • Automotive Seat Belt Assembly (AREA)

Claims (11)

  1. Procédé pour vérifier la capacité de fonctionnement d'au moins un élément de sécurité (3) d'un circuit de sécurité d'une installation d'ascenseur, étant précisé que pour ledit élément de sécurité (3) on utilise une première (5) et une seconde unité de traitement (6), et que ledit élément de sécurité (3) est relié à l'unité de commande (1) par un réseau de communication (2),
    caractérisé en ce qu'au moins un signal est fourni par la première unité de traitement (5) sur la base d'au moins un message de l'unité de commande (1),
    en ce que ledit signal fourni est détecté par la seconde unité de traitement (6), reliée à la première unité de traitement, et est transmis par l'intermédiaire du réseau de communication (2) à l'unité de commande (1), et
    en ce que la validité dudit signal transmis est vérifiée par l'unité de commande (1), étant précisé que ledit signal transmis est comparé par l'unité de commande (1) au signal fourni par la première unité de traitement (5), et que ledit signal transmis est invalide et qu'il existe une incapacité de fonctionnement si les signaux ne correspondent pas entre eux.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise comme signal ou signaux fournis un signal numérique ou un signal analogique.
  3. Procédé selon la revendication 2, caractérisé en ce qu'on utilise comme signal ou signaux une séquence binaire, un signal avec une fréquence, une séquence sonore et/ou un modèle.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que pour la première unité de traitement (5) on utilise un premier jeu d'instructions différent par rapport à la seconde unité de traitement (6).
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'on affecte à la première unité de traitement (5), pour la communication avec l'unité de commande (1), une priorité différente par rapport à la seconde unité de traitement (6).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que le signal fourni est soit contenu dans ledit message de l'unité de commande (1), soit créé par la première unité de traitement (5).
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la vérification de la capacité de fonctionnement dudit élément de sécurité (3) est effectuée en fonction d'au moins une règle.
  8. Procédé selon la revendication 7, caractérisé en ce qu'on utilise comme règle(s) une périodicité, un moment et/ou une heure.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'on utilise comme réseau de communication (2) un réseau de communication filaire ou sans fil.
  10. Dispositif pour vérifier la capacité de fonctionnement d'un élément de sécurité (3) d'un circuit de sécurité d'une installation d'ascenseur, avec au moins une première (5) et une seconde unité de traitement (6) reliée à la première (5),
    caractérisé en ce que la première unité de traitement (5), sur la base d'au moins un message d'une unité de commande (1) qui est reliée audit élément de sécurité (3) par l'intermédiaire d'un réseau de communication (2), fournit au moins un signal,
    en ce que la seconde unité de traitement (6) reliée à la première unité de traitement (5) détecte ledit signal fourni et le transmet par l'intermédiaire du réseau de communication (2) à l'unité de commande (1), et
    en ce que l'unité de commande (1) vérifie la validité dudit signal transmis, étant précisé que l'unité de commande (1) compare ledit signal transmis au signal fourni par la première unité de traitement (5), et que ledit signal transmis est invalide et qu'il existe une incapacité de fonctionnement si les signaux ne correspondent pas entre eux.
  11. Dispositif selon la revendication 10, caractérisé en ce que la première (5) et la seconde unité de traitement (6) sont directement reliées l'une à l'autre.
EP12746315.6A 2011-08-11 2012-08-03 Surveillance de fonctionnement d'un élément de sécurité Revoked EP2741989B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12746315.6A EP2741989B1 (fr) 2011-08-11 2012-08-03 Surveillance de fonctionnement d'un élément de sécurité

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11177268 2011-08-11
PCT/EP2012/065303 WO2013020934A1 (fr) 2011-08-11 2012-08-03 Surveillance du fonctionnement d'un élément de sécurité
EP12746315.6A EP2741989B1 (fr) 2011-08-11 2012-08-03 Surveillance de fonctionnement d'un élément de sécurité

Publications (2)

Publication Number Publication Date
EP2741989A1 EP2741989A1 (fr) 2014-06-18
EP2741989B1 true EP2741989B1 (fr) 2015-03-04

Family

ID=46651487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12746315.6A Revoked EP2741989B1 (fr) 2011-08-11 2012-08-03 Surveillance de fonctionnement d'un élément de sécurité

Country Status (12)

Country Link
US (1) US9695016B2 (fr)
EP (1) EP2741989B1 (fr)
CN (1) CN103648950B (fr)
AU (1) AU2012293670B2 (fr)
BR (1) BR112013019511B1 (fr)
CA (1) CA2823833C (fr)
ES (1) ES2538452T3 (fr)
HK (1) HK1194050A1 (fr)
MX (1) MX348114B (fr)
MY (1) MY166669A (fr)
WO (1) WO2013020934A1 (fr)
ZA (1) ZA201305653B (fr)

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PL3230192T3 (pl) * 2014-12-12 2019-06-28 Inventio Ag Sposób oraz urządzenie do rozruchu przy oddaniu do eksploatacji instalacji dźwigowej
EP3034445A1 (fr) 2014-12-18 2016-06-22 Kone Corporation Appareil de configuration et circuit de sécurité principal pour un système d'ascenseur et système d'ascenseur
CN107250021B (zh) * 2014-12-18 2019-10-11 因温特奥股份公司 用于运行具有临时参与者的电子安全系统的方法
EP3390257A1 (fr) * 2015-12-17 2018-10-24 Inventio AG Installation de transport de personnes, procédé de maintenance et commande de maintenance
TW201803798A (zh) * 2016-06-21 2018-02-01 伊文修股份有限公司 具有用於識別受損的踏板單元之監視及標記機構的人員輸送裝置
CN107662874B (zh) * 2016-07-29 2021-04-16 奥的斯电梯公司 乘客运输机的扶手入口监测系统及其监测方法
US11884512B2 (en) * 2016-09-29 2024-01-30 Inventio Ag Car and entity safety supervising unit for an elevator
US10850941B2 (en) * 2016-10-29 2020-12-01 Otis Elevator Company Communication with a passenger in a transportation system
CH714256A1 (de) * 2017-10-18 2019-04-30 Elesta Gmbh Ostfildern De Zweigniederlassung Bad Ragaz Verfahren zur seriellen Übermittlung von Daten eines Sensors an ein Sicherheitskontrollgerät.
EP3608279A1 (fr) * 2018-08-10 2020-02-12 Otis Elevator Company Dispositif et procédé de surveillance du mouvement d'une porte d'ascenseur à l'aide de rfid

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WO2010109748A1 (fr) 2009-03-25 2010-09-30 三菱電機株式会社 Dispositif de transmission de signaux

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DE50205296D1 (de) 2001-09-18 2006-01-19 Inventio Ag Siecherheitskreis für aufzugstüren
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WO2010109748A1 (fr) 2009-03-25 2010-09-30 三菱電機株式会社 Dispositif de transmission de signaux

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Also Published As

Publication number Publication date
US20130041603A1 (en) 2013-02-14
EP2741989A1 (fr) 2014-06-18
AU2012293670B2 (en) 2017-06-29
US9695016B2 (en) 2017-07-04
CN103648950B (zh) 2016-04-13
CN103648950A (zh) 2014-03-19
BR112013019511A2 (pt) 2020-11-10
AU2012293670A1 (en) 2013-07-25
ZA201305653B (en) 2014-10-29
ES2538452T3 (es) 2015-06-22
CA2823833A1 (fr) 2013-02-14
MY166669A (en) 2018-07-18
MX2014001538A (es) 2014-02-27
CA2823833C (fr) 2019-12-24
HK1194050A1 (zh) 2014-10-10
WO2013020934A1 (fr) 2013-02-14
MX348114B (es) 2017-05-26
BR112013019511B1 (pt) 2021-04-20

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