EP1423326B1 - Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems - Google Patents

Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems Download PDF

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Publication number
EP1423326B1
EP1423326B1 EP02754089A EP02754089A EP1423326B1 EP 1423326 B1 EP1423326 B1 EP 1423326B1 EP 02754089 A EP02754089 A EP 02754089A EP 02754089 A EP02754089 A EP 02754089A EP 1423326 B1 EP1423326 B1 EP 1423326B1
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EP
European Patent Office
Prior art keywords
fault
controller
door
cabin
shaft
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.)
Expired - Lifetime
Application number
EP02754089A
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German (de)
English (en)
French (fr)
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EP1423326A1 (de
Inventor
Philipp Angst
Romeo Deplazes
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Inventio AG
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Inventio AG
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Publication date
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Priority to EP02754089A priority Critical patent/EP1423326B1/de
Publication of EP1423326A1 publication Critical patent/EP1423326A1/de
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Publication of EP1423326B1 publication Critical patent/EP1423326B1/de
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    • 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
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • 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
    • 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
    • B66B5/0018—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 system and an elevator control.
  • the elevator system has an elevator car, which is moved by a drive unit along an elevator shaft wall provided with shaft doors, which shaft wall may be part of an elevator shaft closed all the way through shaft walls or completely or partially open on one or more sides.
  • a monitoring device for elevator systems is known from US Pat. No. 4,898,263, which in each case generates a specific reaction for specific incidents in accordance with a self-diagnostic method in order to reduce, in particular, the speed of an elevator car or to stop it. It is also known, for example from the patent WO 00/51929, to use in such systems various redundant sensors, switches and microprocessors and a data bus. US 4 505 360 discloses an elevator system according to the preamble of claims 1-3.
  • a first elevator system according to the present invention is shown in FIG.
  • the elevator system shown comprises an elevator car 2 with at least one car door 9 and a drive unit 7 for moving the elevator car 2 along an elevator shaft wall 1.1 provided with shaft doors 3 of a hoistway 1.
  • a control 6 is provided for driving the drive unit 7.
  • On each floor there are 3 detection means in the area of the shaft door 5, which communicate with the controller 6 via individual lines 51, 52 and 53. Also on the elevator car 2 - preferably in the area of the car door 9 - such detection means 8 are mounted.
  • the detection means 5 provide fault information to the controller 6 via the lines 51, 52 and 53, and the detection means 8 provide fault information to the controller 6 via the line 55.
  • the controller 6 is, for example, fault information about the type of fault and about the position (eg floor 2) of the fault available.
  • the elevator system according to the invention further comprises a condition detection unit (not shown in FIG. 1) which can detect the current position and the speed of the elevator car 2.
  • the state detection unit communicates with the controller 6 via a line (not shown in FIG. 1). Through this line, the controller 6 information about the current position and the speed of the elevator car 2 is available.
  • the state detection unit also provides information on the direction of movement of the elevator car 2.
  • the controller 6 determines a situation-dependent, safe response taking into account the type of disturbance, the position of the disturbance and the state information. This ensures a certain residual availability of the elevator car 2 despite the disruption. Thus, the general availability of the elevator system can be improved.
  • further detection means 4 may be provided on the open or closed shaft 1, which are connected via a line 54 to the controller 6.
  • the controller 6 can be provided with additional information which can be taken into account when determining a suitable reaction.
  • the detection means 5 are not part of a conventional safety circuit, since such a safety circuit would interrupt the operation of the elevator car 2 in the event of a fault. A situation-dependent, safe reaction would then not be possible in such a case.
  • detection means includes, but is not limited to, sensors, switches (eg, magnetic switches), switches, door contacts, photocells, motion and touch sensors, proximity sensors, relays, and other elements that may be used around the hoistway doors, the vicinity of the hoistway doors, the cabin door (n) and to monitor the elevator shaft, to check their condition, or to detect any disturbances in the shaft door area and / or in the cabin door area.
  • the detection means used in the systems according to the invention are security-relevant means.
  • the detection means may also consist of a combination of several of said elements.
  • the detection means 5 and 8 are directly connected to the control via lines 51-53, and 55, respectively.
  • the detection means 5 and 8 can either be queried from the controller 6, or the detection means 5 and 8 independently send information to the controller 6.
  • FIG. 1 Another elevator system according to the present invention is shown in FIG.
  • the elevator system shown comprises an elevator car 12 with at least one car door 131 and a drive unit 17 for moving the elevator car 12 along an elevator shaft wall 11.1 of a hoistway 11 provided with hoistway doors 13.
  • a control 16 for actuating the drive unit 17 is provided.
  • the detection means 20 provide the controller 16 via floor node 10 and the bus 15 fault information.
  • detection means 18 are mounted in the region of the car door 131.
  • the detection means 18 are preferably in communication with the controller 16 via a node 101 and a bus 151.
  • the illustrated elevator system further includes a condition detection unit (not shown in FIG.
  • the state detection unit preferably communicates with the controller 16 via a node and a bus (not shown in Fig. 2).
  • the bus which is either a separate bus associated with only the state detection unit, or which is the bus 151 used by the detection means 18, the controller 16 is informed of the current position and speed of the elevator car 12 to disposal.
  • the controller 16 is thus available, for example, fault information about the type of fault and the position of the fault.
  • the state detection unit also provides information about the direction of movement of the elevator car 12.
  • further detection means 14 may be provided on the shaft 11 which communicate with the controller 16 via a node 19 and the bus 15.
  • the controller 16 additional information can be provided, which can be taken into account in determining a suitable reaction.
  • the fault information must be provided securely to the control unit to ensure that the entire elevator system is safe in any situation and under any circumstances.
  • the fault information may be transmitted securely over the bus.
  • transmission errors can be prevented by appropriate measures, or if these can not be avoided, transmission errors must be at least detectable and thus also be remedied.
  • the bus 15 and / or the bus 151 is a so-called safety bus, as used in other elevator systems.
  • a condition detection unit is preferably located in or on the elevator car 2 or 12.
  • the condition detection unit is connected to the controller 16 via the car bus (e.g., the cabin bus 151).
  • the car bus e.g., the cabin bus 151).
  • a safety bus is used as a cabin bus.
  • an elevator system comprises floor nodes 10 which are designed such that signals from the detection means 20 of the respective floor are provided at entrances of the floor node 10, the floor nodes 10 processing these signals in order to be able to provide the control 16 with corresponding fault information ,
  • the cabin node 101 which receives signals from the detection means 18 and processes them in order to be able to provide the controller 16 with corresponding fault information.
  • the floor nodes 10 and the cabin node 101 may also communicate with some intelligence, e.g. in the form of a software-controlled processor, to make local decisions and possibly even take over certain control functions.
  • a further embodiment of an elevator system is characterized in that the detection means 20 or 18 and / or the condition detection unit are connected to the controller 16 via a safety bus.
  • a permanent detection of the state of the elevator car 2 or 12 takes place. If it is a digital version, the detection means and / or the state detection unit are often sampled in order to ensure a quasi-continuous information and state detection.
  • the controller 6 or 16 at any time on the position, speed and depending on the embodiment also informed about the direction of travel of the elevator car 2 and 12 respectively.
  • means are provided on the shaft which interact with means on the elevator car as soon as the car approaches a floor. It is according to the patent US 4,898,263 so no permanent or quasi-continuous detection before.
  • the situation-dependent reaction may permit operation of the elevator car only between the permitted floors in order to prevent the floor from being approached or passed, at the shaft door of which the fault has occurred.
  • the state of a not properly closed shaft door or car door is checked automatically by either additionally existing sensors are queried, or by attempting to solve the error by reopening and closing attempt.
  • each of the detection means 30.1-30.n has an interface 31.n which establishes a connection to a bus 25.
  • a star-shaped bus 25 In the example shown, it is a star-shaped bus 25.
  • detection means 30.n it is shown that such a detection means 30.n can comprise a plurality of elements / components 32.1-32.3.
  • the detection means 34 are connected via an interface 23 to the bus 25.
  • the detection means 34 provide fault information to the elevator controller 26 via the bus 25.
  • the elevator car 28 comprises display elements 24.1, which indicate the direction of travel of the car 28, display elements 24.3, which indicate the current floor, and control elements 24.2. These elements 24.1 - 24.3 are also linked to the bus 25 via the interface 23.
  • the state detection unit 33 may be connected to the bus 25 via a dedicated interface (not shown).
  • the state detection unit 33 can have a wide variety of elements and sensors which are used to detect the cabin speed, position and possibly direction of travel.
  • the communication and in particular the transmission security between the individual components of the elevator system 40 can be regulated and organized, for example, by a special communication unit 29.
  • the communication unit 29 can also serve to enable communication with other systems. For example, one can set off a service call via the communication unit 29, which is then forwarded via an external network.
  • the communication within the system 40 can also be handled via a communication module that is integrated into the controller 26.
  • the elevator control 26 can trigger a situation-dependent, safe reaction in order to ensure residual availability of the elevator car despite the fault.
  • the elevator system functions in such a way that, in the event of a fault in the area of one of the shaft doors or the car door (s), at least one of the situation-dependent, safe reactions described above is triggered.
  • Disturbances of an elevator system occur partially in the area of the shaft doors.
  • the shaft doors 3 and 13 themselves, but also the door contacts on the shaft doors 3 and 13 are prone to failure.
  • the availability of the entire elevator system can be increased, so that in the event of certain faults in the area of the shaft doors it is prevented that persons remain trapped in the elevator car 2 or 12.
  • the elevator system may comprise detecting means 5, 20, 30.1-30.n, for determining whether a gap formed by a shaft door 3 or 13 not properly closed is “substantial” or “negligible”.
  • a “gap” can be regarded as “substantial” and thus dangerous if, for example, it is greater than 10 mm. Is not the gap essential and therefore not dangerous to safety, so - as described above - other reactions can be triggered.
  • the condition of the shaft door 3 or 13 can then be checked by opening and closing the shaft door 3 or 13. By such opening and closing of the shaft door, such an error can often be eliminated.
  • the shaft door 3 or 13 is opened and closed again at least once by the elevator car being moved behind the shaft door and the car door being opened and closed becomes. If the "essential" gap can not be eliminated, the elevator car is preferably not set in motion. An announcement may be made or an indicator may light up to prompt the passengers to leave the elevator car 2, 12, 28.
  • a sudden message of the detection means 8, 18 and 34 is now considered at A, which is: "Cabin door open”.
  • a virtual decision stage represented by a discriminator (decision block) D0 then asks the question: Does the elevator car travel 2, 12 or 28?
  • control information 6, 16 or 26 is available which, inter alia, permits a statement about the current position and speed of the elevator car 2, 12 and 28.
  • a situation-dependent reaction R0 is triggered, wherein the controller 6, 16 or 26 initiates and executes a fast stopping process.
  • the controller 6, 16 or 26 initiates and executes a fast stopping process.
  • it can be checked, for example, by a response R1 as part of a plausibility test, whether the car door 3 or 13 is actually open. This test can be carried out by the door drive, wherein the detection means 8, 18, 34 check whether the car door 3 or 13 could be successfully closed. Additional statements can be made, if at the same time taking into account the information provided by the detection means 5, 20, 30.1 - 30.n in the area of the shaft door, on the floor of which the elevator car 2, 12 or 28 is located.
  • a decision stage D1 asks about the Detecting means 8, 18, 34 from whether the car door 3 or 13 is open. If the answer of decision stage D1 is no, the assumption is that the car door 3 or 13 is closed, but the closing contact of said car door 3 or 13 is open. In this case, the car 2, 12 and 28 is reduced by a further reaction R2 with Speed moved to the next floor. Since at the beginning of the decision stage D0 the answer was no (car is not standing), the car door 3 or 13 is opened in any case by a reaction R3 (possibly the car door 3 or 13 is opened only a gap wide) and a repeated Actuate the car door 3 or 13 initiated to try to fix in this way the fault.
  • a reaction R3 possibly the car door 3 or 13 is opened only a gap wide
  • the further question as to whether the closing contact is in order can be decided by a next decision stage D2: if the closing contact is OK, then the elevator system is transferred to normal operation by a reaction R4. Depending on the embodiment, an error message can be sent to a service point together with a service call. If the closing contact does not appear to be in order, then the elevator system is put out of action by another reaction R5 and a corresponding message is sent to the service point.
  • a subsequent question at a decision stage D40 causes as a situation-dependent reaction R41, if the car door 3 or 13 is open, that the elevator system is put out of operation and an emergency call to the service point is triggered. If, on the other hand, the decision of decision stage D40 was that the car door is 3 or 13, normal operation is switched on and a message is sent to the service station. Therefore, at the decision stage D30 or 40, if the answer is that the car door 3 or 13 is not open, it must be so designed that the car door 3 or 13 is closed, but the closing contact is open; this corresponds to the decision of decision stage D1, and the "no" message of decision stage D30 or D40 is performed as reaction R2.
  • the reactions R21 and R31 can be switched off so that only one of the four situation-dependent reactions R20, R41, R4 or R5 is finally carried out.
  • hoistway doors are passive doors that open only through the car door or through a special tool or can be closed. In order to be able to open and close a shaft door automatically, the elevator car must first be moved behind the corresponding shaft door. Once a hoistway door has been closed by the car door and locked by the lock of the hoistway door, it is unlikely that it will open after the door Leaving the corresponding floor by the elevator car to disturbances or problems with the shaft door comes.
  • the value of the force required to open or close can also be stored from time to time. This is one Comparison of current forces with the previously required forces possible. Even with this approach, problems in the field of manhole or car doors can be detected.
  • the elevator system can likewise be designed such that a situation-dependent reaction is triggered even when other types of disturbances occur.
  • the controller may preferably distinguish between known and unknown types of interference. If a known type of fault exists, the controller can use a table entry, a decision tree or similar means to bring about a situation-dependent reaction. In order to make the elevator system as safe as possible, an immediate setting of the driving operation should take place when an unknown type of fault occurs. Maybe then an emergency call can be placed.
  • An elevator system can enable a software-based bridging of individual sensors and / or contacts or entire detection means in order, for example, to bring about conditions in certain service situations, which would normally be prevented by the inventive control. It is important that such a software bypass is automatically reset after a certain time, so that a possible forgetting can not lead to a dangerous situation.
  • the elevator control 26 comprises a software-controlled component which evaluates the incoming signals via the bus 25 and triggers a reaction corresponding to the situation. This can be done with tables, decision trees or other similar means.
  • distributed sensors are preferably used as detection means, wherein in each case two or more sensors could be provided for mutual control or mutual assistance.
  • the actuators, control blocks, driving or adjusting elements serving to carry out the reactions can be observed indirectly via the sensors. They are preferably designed in such a way that in the event of a fault they change to the safe state (fail safe) so as not to negatively influence the elevator system.
  • the floor nodes and / or elevator control may be provided with two or more processors to increase the security of the entire system through this redundancy.
  • the floor nodes and / or elevator control may be self-checking to form a trusted whole unit.
  • TMR triple module redundancy
  • the functionality of the elevator control can preferably be distributed to two or more parallel running node computers, wherein the control is executed as software tasks in the node computers.
  • the various elevator systems according to the invention prove to be particularly advantageous with regard to their high operational reliability, availability and reliability, in particular since faults, failures, runtime errors, unexpected effects and undiscovered development faults can be detected and remedied in good time.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Window Of Vehicle (AREA)
EP02754089A 2001-09-03 2002-08-15 Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems Expired - Lifetime EP1423326B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02754089A EP1423326B1 (de) 2001-09-03 2002-08-15 Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01121058 2001-09-03
EP01121058 2001-09-03
EP02754089A EP1423326B1 (de) 2001-09-03 2002-08-15 Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems
PCT/CH2002/000447 WO2003020627A1 (de) 2001-09-03 2002-08-15 Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems

Publications (2)

Publication Number Publication Date
EP1423326A1 EP1423326A1 (de) 2004-06-02
EP1423326B1 true EP1423326B1 (de) 2006-03-29

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EP02754089A Expired - Lifetime EP1423326B1 (de) 2001-09-03 2002-08-15 Situationsabhängige reaktion im falle einer störung im bereich einer türe eines aufzugsystems

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US (1) US7252180B2 (xx)
EP (1) EP1423326B1 (xx)
JP (1) JP2005500965A (xx)
KR (1) KR100926922B1 (xx)
CN (1) CN1309645C (xx)
AT (1) ATE321723T1 (xx)
CA (1) CA2458221C (xx)
DE (1) DE50206242D1 (xx)
HK (1) HK1066520A1 (xx)
WO (1) WO2003020627A1 (xx)

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US6173814B1 (en) 1999-03-04 2001-01-16 Otis Elevator Company Electronic safety system for elevators having a dual redundant safety bus
US6223861B1 (en) * 1999-08-30 2001-05-01 Otis Elevator Company Elevator hoistway access safety
DE10108772A1 (de) * 2001-02-23 2002-11-21 Otis Elevator Co Aufzugssicherheitseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12012307B2 (en) 2018-07-27 2024-06-18 Otis Elevator Company Elevator safety system

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DE50206242D1 (de) 2006-05-18
KR20040029150A (ko) 2004-04-03
ATE321723T1 (de) 2006-04-15
US7252180B2 (en) 2007-08-07
CA2458221C (en) 2010-11-09
HK1066520A1 (en) 2005-03-24
EP1423326A1 (de) 2004-06-02
CN1549788A (zh) 2004-11-24
US20040178024A1 (en) 2004-09-16
JP2005500965A (ja) 2005-01-13
WO2003020627A1 (de) 2003-03-13
CA2458221A1 (en) 2003-03-13
CN1309645C (zh) 2007-04-11
KR100926922B1 (ko) 2009-11-17

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