EP3347298B2 - Vorrichtung und verfahren zur überwachung eines wartungsmodus einer aufzuganlage - Google Patents

Vorrichtung und verfahren zur überwachung eines wartungsmodus einer aufzuganlage Download PDF

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Publication number
EP3347298B2
EP3347298B2 EP16763040.9A EP16763040A EP3347298B2 EP 3347298 B2 EP3347298 B2 EP 3347298B2 EP 16763040 A EP16763040 A EP 16763040A EP 3347298 B2 EP3347298 B2 EP 3347298B2
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EP
European Patent Office
Prior art keywords
signal
signals
sequence
reference sequence
elevator
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EP16763040.9A
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German (de)
English (en)
French (fr)
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EP3347298B1 (de
EP3347298A1 (de
Inventor
Markus Walker
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Inventio AG
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Inventio AG
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    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • 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
    • B66B1/3407—Setting or modification of parameters of the control system
    • 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
    • B66B1/3415—Control system configuration and the data transmission or communication within the control system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/002—Indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00—Aspects of control systems of elevators

Definitions

  • the present invention relates generally to elevator systems.
  • the present invention relates to a control device and an elevator monitoring device for monitoring a maintenance mode of an elevator system and a method for ending a maintenance mode of an elevator system.
  • serviceable and/or maintenance-requiring components of the elevator installation can be located in particular below a car that can be moved in an elevator shaft between floors of a building. These components can be arranged, for example, on an underside of the elevator car and/or inside the elevator shaft.
  • the elevator system can usually be put into a maintenance mode in which operation of the elevator car can be blocked or in which the elevator car can only be moved between certain positions within the elevator shaft and/or between certain floors.
  • personnel to carry out maintenance work can access the elevator shaft via a shaft door of the elevator system and/or a maintenance hatch, in which case a maintenance switch can be actuated, e.g. activated, before entering the elevator shaft, which switch is located, for example, next to the respective shaft door or the maintenance hatch and /or may be located on a car roof.
  • the maintenance hatch can generally refer to a maintenance access and/or a maintenance door, for example.
  • the shaft door and/or the maintenance hatch can be coupled to a safety switch of a safety chain of the elevator system, so that when the shaft door and/or the maintenance hatch is opened or unlocked, operation of the elevator car can be blocked, for example by interrupting a power supply to a drive of the elevator car .
  • the elevator system can also be switched to maintenance mode by actuating the maintenance switch.
  • the maintenance switch can, for example, designate an emergency brake switch which, when activated, can interrupt the safety chain and stop door movements, for example.
  • the maintenance switch can denote an inspection switch which, when activated, can interrupt the safety chain and/or activate another branch of the safety chain, so that movements of the car and/or door movements can be prevented.
  • the maintenance mode can be ended by actuating, e.g. deactivating, the maintenance switch and by closing or locking the shaft door and the associated closing of the safety chain, the elevator system can be switched to regular driving operation, in which the Car can be moved.
  • the EP 2033927 A1 describes an elevator system with a safety chain, which has a first safety switch having normal operation branch to enable a drive to be supplied with electrical energy and an inspection operation branch which is designed to enable the drive to be supplied with electrical energy during maintenance work.
  • the WO 2014/016135 A1 describes a control device for monitoring a maintenance mode of an elevator installation.
  • a control device for monitoring a maintenance mode of an elevator system which has a controller and a memory device.
  • the controller is designed to receive a first signal when a locking device of a shaft door of the elevator system is locked, via which an elevator shaft of the elevator system is accessible for maintenance work, and to receive a second signal when the locking device is unlocked.
  • the controller is designed to compare a temporal signal sequence of first signals and second signals with a reference sequence stored in the memory device for an actuation of the locking device, wherein the controller is also designed to, if the signal sequence of the first signals and second signals match the reference sequence to end the maintenance mode and to release a car of the elevator system for a driving operation.
  • the first signal and the second signal can be considered as different or separate signals or as states or parts of a single signal.
  • the reference sequence for an actuation of the locking device can refer to a reference sequence of the expected signal sequence of first and second signals in the case of multiple consecutive locking and unlocking of the locking device.
  • the reference sequence can thus, for example, depict and/or represent a definable actuation pattern of the locking device, which can represent a time sequence or sequence of locking and unlocking operations of the locking device and/or can correlate with this sequence. If the staff leaves the elevator shaft after maintenance work and/or a shaft inspection, they can use the locking device correspondingly and/or analogously to that defined in the reference sequence or actuate a stored actuation pattern, for example by locking and unlocking the locking device several times in succession.
  • the temporal signal sequence of first signals which can correspond to a locking signal of the locking device, for example, and second signals, which can correspond to an unlocking signal, can be generated and/or generated and received by the controller of the control unit.
  • the controller can compare the received signal sequence with the reference sequence and terminate maintenance mode if they match.
  • the controller can optionally store the signal sequence of received first and/or second signals at least partially in the memory device.
  • the controller can also further process and/or process the first and/or second signals for the comparison with the reference sequence.
  • the configuration of the control device according to the invention can advantageously ensure that no personnel are present in the elevator shaft for maintenance work, since they have actuated the locking device of the shaft door, which is arranged outside the elevator shaft, several times. Accordingly, it can be ensured by the control device according to the invention that the maintenance mode of the elevator installation is terminated and regular driving operation can be resumed.
  • Such a safety function or safety measure provided by the control device according to the invention can be used to implement the safety standard EN 81-20:2014 for elevator systems, which provides for equipping elevator systems with a device for ending the maintenance mode arranged outside the elevator shaft.
  • a locking device for locking and unlocking or closing and opening the shaft door is usually arranged on most shaft doors, which is designed as a lock coupled to a sensor element.
  • the lock can usually be actuated by staff using a key, for example a triangular key.
  • the control unit according to the invention can thus be retrofitted quickly and inexpensively in an advantageous manner.
  • the control device according to the invention can be retrofitted or installed in newly manufactured elevator systems without attaching further control elements to the elevator system and/or without further adjustment of the elevator system, regardless of the type and/or design of the elevator system. In this way, for example, customer requests with regard to the appearance of the elevator system, in particular the shaft doors and/or the car, can be implemented flexibly and without any visible adjustment of the elevator system.
  • the controller of the control device can generally refer to a logic device.
  • the controller may refer to and/or include a microcontroller, a processor, a FPGA (Field Programmable Gate Array), and/or any other programmable data processing device.
  • the controller can be designed and/or set up accordingly, for example programmed, for all of the functions specified above and below. To do this, the controller can access corresponding instructions stored in a program code.
  • the storage device can refer to any device for storing and/or retrieving data and for example a floppy disk, a hard disk, a USB storage device, a RAM memory (Random Access Memory), a ROM memory (Read Only memory), a FLASH Have memory and / or an EPROM memory (Erasable Programmable Read Only Memory).
  • a floppy disk a hard disk
  • a USB storage device a RAM memory (Random Access Memory), a ROM memory (Read Only memory), a FLASH Have memory and / or an EPROM memory (Erasable Programmable Read Only Memory).
  • a further aspect of the invention relates to an elevator monitoring device with a control unit as described above and below.
  • a further aspect of the invention relates to a method for ending a maintenance mode of the elevator system.
  • the reference sequence includes a time sequence of first signal, second signal, first signal, second signal and first signal, or the reference sequence includes a time sequence of second signal, first signal, second signal, first signal and second signal.
  • the specified sequences of first and second signals can be suitably mapped in the reference sequence, for example by storing a binary chain and/or list in the memory device, with one binary value corresponding to the first signal and another binary value corresponding to the second signal.
  • a time duration of the respective first and second signals is stored in the reference sequence.
  • the reference sequence can thus contain a type of Morse code, so that time-resolved actuation patterns for actuating the locking device can also be represented by the reference sequence or mapped in it.
  • the reference sequence is configured specifically for the elevator system.
  • the reference sequence is advantageously designed specifically for an elevator installation, for example individually dependent on an individual identification, for example a serial number of an elevator installation or on installation data, and can be stored in the storage device.
  • This stored reference sequence can be called up by personnel to carry out maintenance work or otherwise found out. Thereby, the safety measure for personnel in an installation or maintenance work can be further improved.
  • the reference sequence can be prevented from being misused if it should undesirably become public knowledge.
  • Maintenance personnel can, for example, take the reference sequence from a suitable location in the elevator system that is not publicly accessible, or can query the reference sequence from a central database.
  • the reference sequence can also be time-specific, e.g. change after a certain time interval and/or only be valid for a certain period of time after an initial input. Furthermore, the reference sequence can be determined for a specific, absolutely definable period of time, e.g. specified by date and/or time.
  • the controller is designed to only consider those first signals and/or second signals which last at least 0.1 seconds and at most 10 seconds, for example at least 0.3 seconds and at most 2.2 seconds, preferably at least 0.5 seconds and at most 2.0 seconds.
  • the controller can be designed to discard first and/or second signals that last shorter and/or longer than the specified intervals.
  • the specified lower limits of the intervals can designate and/or represent a time resolution of the controller with which the controller can receive and/or take into account a first and/or second signal.
  • the locking device can have a sensor element, such as an electromechanical switch, which can oscillate between a locked and an unlocked state in a short time interval after mechanical actuation of the locking device, with a rapidly oscillating and periodically changing sequence of first and second signals can be generated.
  • chattering Such behavior of an electro-mechanical switch is known as chattering.
  • the time resolution of the controller can be selected as indicated above by the lower limits of the respective intervals.
  • the locking device can be opened and closed, i.e. locked and unlocked, several times in succession as part of regular maintenance work, with such successive actuations of the locking device usually being delayed by several seconds.
  • the upper limits of the respective intervals can be chosen as stated above.
  • the controller is designed to only consider those intermediate sequences of first signals and second signals which last between 0.1 seconds and 10 seconds, for example between 0.3 seconds and 2.2 seconds, preferably between 0, 5 seconds and 2.0 seconds.
  • the intermediate sequence includes a temporal signal sequence of the first signal, second signal and first signal or a temporal signal sequence of the second signal, first signal and second signal.
  • bounce signals and/or signal sequences generated by other actuation of the locking device can thus advantageously be distinguished from those signal sequences which are provided for ending the maintenance mode by the personnel.
  • the controller is designed to release the elevator car only when at least two consecutive signal sequences of first signals and second signals each match the reference sequence.
  • the staff actuates the locking device at least twice in succession according to the reference sequence or according to the actuation pattern corresponding to the reference sequence. In this way, a safety function provided by the control unit can advantageously be further increased.
  • a further aspect of the invention relates to an elevator monitoring device for monitoring a maintenance mode and/or a shaft inspection of an elevator installation.
  • the elevator monitoring device has a control unit as described above and below.
  • the elevator monitoring device has a plurality of locking devices for a plurality of shaft doors of the elevator system, the locking devices each having at least one sensor element which is each coupled to the controller of the control device and which is each designed to respond to a locking of the respective locking device generate the first signal and generate the second signal in response to an unlocking of the respective locking device.
  • a sensor element can be arranged on the shaft doors of the elevator installation or their locking devices, which sensor element can be designed to monitor an actuation state of the locking device.
  • the sensor elements can, for example, be connected in series as a safety chain of the elevator system and coupled to the controller for signal transmission.
  • the sensor elements can, for example, be wired and/or wirelessly coupled to the controller and/or to be connected.
  • the sensor elements can actively direct and/or send the first and/or second signal to the controller.
  • the controller can monitor a state of the sensor elements and in this way can pick up the first and/or second signals from the sensor elements.
  • the sensor elements of the locking devices each have at least one electromechanical switch.
  • the locking device can, for example, have an electromechanical switch coupled to a lock of the shaft door, with the lock or the locking device being able to be locked and unlocked by the staff with a corresponding key, for example a triangular key.
  • electromechanical switch the mechanical actuation of the locking device by the staff can advantageously be converted into an electrical signal that can be processed by the controller.
  • electromechanical switches can be characterized by a long service life and low susceptibility to errors.
  • the sensor elements of the locking devices can each have a magnetic sensor, a Hall sensor, an RFID (radio frequency identification) and/or another type of sensor.
  • the controller of the control device is coupled to a drive of an elevator car of the elevator system and to a safety chain of the elevator system, the safety chain having a plurality of safety switches, for example connected in series, the safety switches each being coupled to at least one of the locking devices are, and wherein the safety switches are each designed to interrupt the safety chain when unlocking the respective locking device.
  • the controller is also coupled to at least one maintenance switch, which is designed to indicate a maintenance mode of the elevator system to the controller.
  • the safety switches of the safety chain can be part of the locking devices of the shaft doors.
  • the safety chain can be interrupted and the elevator car can be prevented from moving, for example by interrupting a power supply to the drive.
  • the controller may be wired and/or wirelessly coupled and/or connected to the safety chain or safety switches.
  • the maintenance switch may refer to a switch which may be located within the hoistway adjacent to one or more hoistway doors.
  • the maintenance switch When the maintenance switch is activated, the elevator system can be put into the maintenance mode, with the elevator car being completely prevented from moving or only being possible between certain positions within the elevator shaft and/or between certain floors.
  • the controller may be wired and/or wirelessly coupled and/or connected to the maintenance switches.
  • the controller is designed to block and/or prevent the drive of the elevator car, for example by interrupting the power supply to the drive, when the maintenance switch is activated and/or when the safety chain is interrupted. Furthermore, after activation of the maintenance switch and subsequent deactivation of the maintenance switch, the controller is designed to only release the drive of the elevator car if the safety chain is completely closed, for example if all safety switches of the safety chain are closed, and if the temporal signal sequence of first signals and second signals agrees with the reference sequence stored in the storage device for actuating the locking devices.
  • the safety of the elevator system can advantageously be increased, since when the safety chain is closed it can be ensured that all shaft doors are locked, and since when the maintenance switch is deactivated and the signal sequence matches the reference sequence it can be ensured that there are no longer any personnel in the elevator shaft is located.
  • the elevator monitoring device also has at least one acoustic and/or visual signal generator, which is coupled to the controller of the control unit, the controller being designed to, if the signal sequence of the first signals and second signals matches the reference sequence and/or or to activate the signal transmitter if the signal sequence deviates from the reference sequence.
  • the controller can control the signal transmitter in such a way that it emits an acoustically and/or optically perceptible signal. In this way, acoustic and/or visual feedback regarding the correctness of the actuation pattern can advantageously be provided for the personnel who actuate the locking device according to the actuation pattern depicted in the reference sequence.
  • the signal transmitter can have a loudspeaker and/or a signal lamp, for example.
  • the controller can also activate the signal transmitter when the maintenance switch, such as an inspection switch, is actuated and, by outputting an acoustically and/or optically perceptible signal, prompt the staff to actuate the locking device according to the actuation pattern.
  • the elevator monitoring device also has a device for storing and/or resetting the reference sequence in the memory device.
  • the reference sequence can advantageously be defined and/or changed.
  • the device for storing and/or resetting the reference sequence has at least one operating switch on an operating terminal and/or on a service terminal of the elevator installation.
  • the device for storing and/or resetting the reference sequence can have a switch on a landing operating panel (LOP), which can be actuated, for example, with a key, in particular for resetting.
  • LOP landing operating panel
  • the reference sequence can be entered by entering a switching pattern on an LOP and can thus be stored in the memory device.
  • a with a key such as a triangular key, lockable and openable box or a box or a flap in the vicinity of a shaft door, for example on the lowest floor, be arranged, with in the box or the box or behind a switch of the device for resetting the reference sequence can be arranged on the flap.
  • a menu item for storing and/or resetting the reference sequence can be provided on a service terminal of the elevator installation that can be operated by service personnel.
  • a further aspect of the invention relates to a method for ending a maintenance mode of an elevator installation.
  • the method has the step of actuating a locking device of a shaft door of the elevator system multiple times in succession, with a first signal being generated when the locking device is locked and a second signal being generated when the locking device is unlocked, so that in the step of actuating the locking device multiple times in succession a chronological signal sequence of first signals and second signals is generated.
  • the multiple consecutive actuation of the locking device can refer to multiple consecutive locking and unlocking of the locking device.
  • the method also has the step of comparing, with a control unit of the elevator system, the temporal signal sequence of first signals and second signals with a reference sequence stored in the control unit for actuating the locking device.
  • the method has the step of releasing, by the control device, a car of the elevator installation for driving operation when the time sequence of signals of first signals and second signals matches the reference sequence.
  • the step of comparing the signal sequence with the reference sequence can also include a partial step of processing and/or processing the first and/or second signals. Furthermore, the step of comparing can include the sub-step of storing the signal sequence in the memory device of the control unit.
  • the method further comprises the step of deactivating a maintenance switch of the elevator installation and closing a safety chain of the elevator installation before the step of actuating the locking device multiple times and in succession.
  • a maintenance switch of the elevator installation after maintenance work, the personnel exit the elevator shaft, deactivate the maintenance switch, lock the shaft door so that the safety chain can be closed, and then actuate the locking device according to the actuation pattern stored in the reference sequence, thereby ending the maintenance mode and regular driving can be started. This can advantageously increase the safety of the elevator system.
  • the step of actuating the locking device multiple times in succession is carried out at least twice in succession, so that a first signal sequence of first signals and second signals and a second signal sequence of first signals and second signals is generated
  • the step of comparing the signal sequence with the reference sequence comprises comparing the first signal sequence and the second signal sequence with the reference sequence.
  • the car is released when the first signal sequence and the second signal sequence match the reference sequence.
  • control device the elevator monitoring device and the method are described herein with reference to different embodiments.
  • a person skilled in the art recognizes that the features can be combined, adapted or exchanged in a suitable manner in order to arrive at further embodiments of the invention.
  • FIG. 1 shows a control device 10 for monitoring a maintenance mode and/or a shaft inspection of an elevator system 100 according to an embodiment of the invention.
  • the control device 10 has a controller 12 and a storage device 14 .
  • controller 10 may include a logic device, microcontroller, FPGA, and/or other type of computing device.
  • Storage device 14 may refer to any type of device for storing and/or retrieving data, such as a floppy disk, hard drive, USB memory device, RAM memory, ROM memory, FLASH memory, and/or EPROM -Storage.
  • the controller 12 is designed to receive a first signal when a locking device 18 of a shaft door 16 of the elevator system 100 is locked and a second signal when the locking device 18 is unlocked, and is set up accordingly in terms of programming, for example.
  • the control unit 10 can have a suitable interface 11 which can be coupled and/or connected to the locking device 18 .
  • the controller 12 itself can have a suitable interface 13 via which it can be coupled and/or connected to the locking device 18 .
  • the locking device 18 has a sensor element 20 for the actual detection of an unlocking process and/or a locking process of the shaft door 16 .
  • the sensor element 20 can have, for example, an electromechanical switch 21 which can be coupled to a lock 22 of the shaft door 16 or the locking device 18 .
  • the lock 22 can be actuated, i.e. locked and unlocked, by personnel using a key, e.g. If the lock 22 is locked, the sensor element 20 generates the first signal as a response to the locking process and can forward and/or send this to the controller 12 via the interface 11 and/or the interface 13 .
  • the sensor element 20 itself can comprise a logic device. If the lock 22 and thus the locking device 18 and the shaft door 16 are unlocked, the sensor element 20 generates the second signal in response to the unlocking process and can forward and/or send this signal via the interface 11 and/or the interface 13 to the controller 12 .
  • the controller 12 can monitor and/or read out a state of the sensor element 20 and/or the locking device 18 so that the controller 12 can detect an actuation of the locking device 18 in this way.
  • the controller 12 can in turn further process the first and/or second signals received from the locking device 18 and/or the sensor element 20 of the locking device 18 and, if necessary, deposit and/or store them in the storage device 14 .
  • the maintenance mode can be monitored with the control device 10 according to the invention as described below. If the personnel leave the elevator shaft after maintenance work, they can actuate the lock 22 and/or the locking device 18 several times or alternately lock and unlock it, e.g. with the triangular key. According to the invention, this multiple actuation of the locking device 18 should take place according to a defined pattern or actuation pattern.
  • a temporal signal sequence and/or sequence of first and second signals is generated via the sensor element 20 of the locking device 18 .
  • the signal sequence can be an alternating sequence of first and second signals.
  • the signal sequence can then be received by the controller 12 and compared with a reference sequence stored in the memory device 14, the reference sequence depicting and/or storing the defined actuation pattern. If the signal sequence matches the reference sequence, the controller 12 ends the maintenance mode of the elevator system 100 and releases, for example, a car of the elevator system for regular driving operation.
  • the reference sequence can represent any conceivable sequence of first and second signals.
  • a period of time for certain positions of the sequence similar to a Morse code, can also be stored in the reference sequence.
  • the reference sequence is a chronological sequence of first signal, second signal, first signal, second signal and first signal, or a chronological sequence of second signal, first signal , second signal, first signal and second signal.
  • the controller 12 only considers those first signals and/or second signals which last at least 0.1 seconds and at most 10 seconds, preferably at least 0.5 seconds and at most 2.0 seconds.
  • the controller 12 only takes into account those intermediate sequences of first signals and second signals which last between 0.1 seconds and 10 seconds, preferably between 0.5 seconds and 2.0 seconds.
  • the intermediate sequence can include a temporal signal sequence of a first signal, a second signal and a first signal or a temporal signal sequence of a second signal, a first signal and a second signal.
  • a first signal sequence and a second signal sequence can thus be generated and received by the controller 12, which can each be compared with the reference sequence. Accordingly, it can be provided that the first and second signal sequence should correspond to the reference sequence in order to end the maintenance mode and release the car of the elevator installation 100 .
  • FIG. 2 shows an elevator monitoring device 50 with a control device 10 for monitoring a maintenance mode of an elevator system 100 according to an embodiment of the invention. Unless otherwise described, the elevator monitoring device 50 can all 1 have the features, functions and properties described.
  • the elevator monitoring device 50 has a control device 10 with a controller 12 and a storage device 14 as well as a plurality of locking devices 18 for a plurality of shaft doors 16 .
  • the shaft doors 16 can be arranged, for example, on different floors of a building, between which a car 52 can be moved in an elevator shaft 54 of the elevator installation 100 .
  • the locking devices 18 each have at least one sensor element 20 and/or an electromechanical switch 21, which are each coupled or connected to the control unit 10 and/or the controller 12.
  • the sensor elements 20 are each designed to monitor an actuation state of the respective shaft door 16 and to generate the first signal when the respective locking device 18 is locked and the second signal when the respective locking device is unlocked, which in turn is transmitted by the control unit 10 and/or the controller 12 can be received.
  • control unit 10 and/or the controller 12 is coupled to a drive 58 of the elevator system 100, which is designed to move the elevator car 52 within the elevator shaft.
  • control unit 10 and/or the controller 12 is coupled to a safety chain 56 which has a plurality of safety switches 24 connected in series.
  • the safety switches 24 can be provided by the locking devices 18 and/or the associated sensor elements 20 or the electromechanical switches 21 . Additional safety switches 24 coupled to the locking devices 18 can also be provided.
  • the safety switches 24 are each designed to interrupt the safety chain 56 when one of the locking devices 18 is unlocked and thus to prevent a driving operation of the elevator car 52, for example by interrupting a power supply to the drive 58.
  • control device 10 and/or the controller 12 is coupled and/or connected to at least one maintenance switch 60 .
  • a maintenance switch 60 can be arranged and/or provided on each floor within the elevator shaft 54 near each shaft door 16 .
  • control unit 10 can be coupled to a plurality of maintenance switches 60 .
  • the elevator monitoring device 50 also has an acoustic and/or visual signal generator 62 which is coupled to the controller 12 and/or the control device 10 .
  • the signal transmitter 62 can have a loudspeaker and/or a signal lamp, for example.
  • the maintenance mode can be monitored with the aid of the elevator monitoring device 50 according to the invention as described below.
  • Personnel open one of the shaft doors 16, thereby unlocking one of the locking devices 18, which in turn opens one of the safety switches 24 and the safety chain 56.
  • the control device 10 or the controller 12 blocks and/or prevents the drive 58 of the elevator system 100, so that the car 52 can no longer be moved.
  • Personnel can then enter the elevator shaft 52 and activate at least one of the maintenance switches 60, as a result of which the elevator system can be placed in maintenance mode and the drive can be further blocked.
  • control unit 10 or the controller 12 continues to prevent and/or block the drive until analogously to the below 1 procedure described, the staff actuates the locking device 18 according to the defined actuation pattern, the signal sequence of first and second signals being generated in turn and transmitted by the controller 12 Will be received. Only when the signal sequence matches the reference sequence stored in memory device 14 does control device 10 or controller 12 end the maintenance mode and release drive 58 again, so that car 52 can be moved in regular driving operation.
  • the maintenance mode is only ended when the safety chain 56 is completely closed, all maintenance switches 60 are deactivated and the signal sequence matches the reference sequence. It can also be provided that the actuation pattern is to be entered twice in succession by the staff in order to end the maintenance mode. If the signal sequence matches the reference sequence, the control device 10 and/or the controller 12 can also activate the signal generator 62 in such a way that it outputs an acoustic and/or optical confirmation signal as feedback for the staff. Even if the signal sequence deviates from the reference sequence, the control device 10 and/or the controller 12 can activate the signal generator 62 in such a way that it outputs an error signal as feedback for the personnel.
  • the elevator monitoring device 50 can optionally have a device 64 for storing and/or resetting the reference sequence in the memory device 14 .
  • the device 64 for storing and/or resetting the reference sequence can have at least one operating switch on an operating terminal and/or on a service terminal of the elevator installation.
  • the device 64 for storing and/or resetting the reference sequence can have a switch on a landing operating panel (LOP), which can be actuated in particular for resetting, for example with a key.
  • LOP landing operating panel
  • the reference sequence can be entered by entering a switching pattern on an LOP and can thus be stored in the memory device 14 .
  • a with a key such as a triangular key, lockable and openable box or a box or a flap in the vicinity of a shaft door, for example on the lowest floor, be arranged, with in the box or the box or behind a switch of the device 64 for resetting the reference sequence can be arranged on the flap.
  • a menu item for storing and/or resetting the reference sequence can be provided on a service terminal of the elevator system 100 that can be operated by service personnel.
  • FIG. 3 shows a flowchart to illustrate steps of a method for ending a maintenance mode of an elevator system 100 according to an embodiment of the invention.
  • the method has a step S1 of actuating the locking device 18 multiple times in succession, which step can include locking and unlocking the locking device 18 multiple times in succession.
  • a time signal sequence of first signals and second signals is generated, which is received by control unit 10 and/or controller 12 .
  • Step S1 can optionally include a sub-step of deactivating the maintenance switch 60 of the elevator system 100 and/or closing the safety chain 56 of the elevator system 100 before the locking device 18 is actuated multiple times and in succession.
  • the method also has a step S2 of comparing, with control unit 10 and/or controller 12, the temporal signal sequence of first signals and second signals with the reference sequence stored in control unit 10 or memory device 14 of control unit 10 for actuating the Locking device 18 on.
  • step S2 of comparing can include a sub-step of activating, by control device 10 and/or controller 12, signal generator 64 if the signal sequence and the reference sequence match and/or deviate.
  • the step S2 of comparing can have a partial step of outputting a confirmation signal via the signal generator 64 and/or outputting an error signal via the signal generator 64 .
  • step S2 in a further step S1', the locking device 18 is actuated again several times and in succession according to the actuation pattern, so that a further signal sequence is generated, which in turn can be compared to the reference sequence analogously to step S2 .
  • the signal transmitter 64 is activated again to output the confirmation signal and/or the error signal.
  • the method also has a step S3 of releasing, by control device 10 and/or controller 12, car 52 of elevator installation 100 for driving operation if the time sequence of first signals and second signals matches the reference sequence. If step S1 involves deactivating maintenance switch 60 and/or closing safety chain 56, step S3 can provide for elevator car 52 to be released only when maintenance switch 60 is deactivated, safety chain 56 is closed and the signal sequence matches the reference sequence .
  • the method can be carried out as described below during maintenance work on an elevator installation 100 .
  • the personnel can access the elevator shaft 54 via one of the shaft doors 16 and/or via a maintenance hatch.
  • the personnel enters the elevator shaft 54 via the shaft door 16, they can ensure that the car 52 is not at a base terminal of the elevator system 100 located. Personnel can unlock the locking device 18 and open the hoistway door 16, whereby the safety chain 56 can be broken. The car 52 can then remain stationary. The personnel can ensure that the car 52 is stationary. The personnel can activate a hoistway light switch 54 and the maintenance switch 60 . The elevator system 100 can then switch to an idle or stop state or the maintenance mode, in which case the safety chain 56 remains interrupted and door movement can be prevented as long as the maintenance switch 60 is activated. The personnel can then enter the elevator shaft 54, for example via a ladder, and if necessary close the shaft door 16 again and lock the locking device 18.
  • the safety switch 24 of the safety chain 56 on the corresponding shaft door 16 can thereby be closed, but the safety chain 56 remains interrupted when the maintenance switch 60 is activated.
  • the staff can open the shaft door 16 again and unlock the locking device 18 again.
  • the associated safety switch 24 is opened and the drive 58 of the car 52 can remain blocked.
  • the personnel can exit the hoistway 54, deactivate the light switch and the maintenance switch 60, close the hoistway door 16 again and lock the locking device 18.
  • the safety chain 56 can thereby be completely closed, but the drive 58 remains blocked.
  • the personnel can then actuate the locking device 18 once or twice according to the actuation pattern, which can be recognized by the controller 10 and/or the controller 12 . If the signal sequence or signal sequences generated in this way match the reference sequence, the drive 58 can be released again, the elevator installation 100 can optionally carry out a correction and/or test run and then resume regular travel operation.
  • the maintenance hatch itself can have a safety switch or it can not be coupled to the safety chain 56 . If the maintenance hatch has a safety switch, then when the maintenance hatch is opened, the safety chain 56 is interrupted analogously to the above and the drive 58 is blocked. The personnel can enter the hoistway 54, activate the light switch and the maintenance switch 60, whereby the elevator system 100 is placed in the sleep, stop and maintenance mode, respectively. Personnel enter elevator shaft 54 and close the service hatch, allowing the safety switch to close, if present. The drive 58 again remains blocked when the maintenance switch 60 is activated. After the maintenance work, the staff opens the maintenance hatch again, which - if available - the safety switch can be opened again.
  • the personnel can deactivate the light switch as well as the maintenance switch 60 as well as close and/or lock the maintenance hatch again, whereby the safety chain 56 can be closed.
  • the drive 58 can remain blocked. Personnel may proceed to one of the landing doors 16 and actuate the locking device 18 once or twice according to the actuation pattern, which may be recognized by the controller 10 and/or the controller 12 . If the signal sequence or signal sequences generated in this way match the reference sequence, the drive 58 can be released again, the elevator system 100 can optionally carry out a correction and/or test run and then resume regular travel operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Control (AREA)
EP16763040.9A 2015-09-11 2016-09-09 Vorrichtung und verfahren zur überwachung eines wartungsmodus einer aufzuganlage Active EP3347298B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15184820 2015-09-11
PCT/EP2016/071245 WO2017042306A1 (de) 2015-09-11 2016-09-09 Vorrichtung und verfahren zur überwachung eines wartungsmodus einer aufzuganlage

Publications (3)

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EP3347298A1 EP3347298A1 (de) 2018-07-18
EP3347298B1 EP3347298B1 (de) 2019-11-20
EP3347298B2 true EP3347298B2 (de) 2023-01-18

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EP (1) EP3347298B2 (zh)
CN (1) CN108025887B (zh)
AU (1) AU2016320400B2 (zh)
BR (1) BR112018003939B1 (zh)
CA (1) CA2996459A1 (zh)
ES (1) ES2759928T3 (zh)
HK (1) HK1247905B (zh)
WO (1) WO2017042306A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019219406A1 (de) * 2018-05-17 2019-11-21 Inventio Ag Inspektionssteuerungssystem einer aufzugsanlage sowie verfahren zum umschalten einer aufzugsanlage zwischen einem normal- und einem inspektionsbetrieb
US20210316961A1 (en) * 2018-09-25 2021-10-14 Inventio Ag Method and elevator control arrangement for controlling a maintenance mode of an elevator system
EP3643674B1 (en) * 2018-10-26 2022-08-10 Otis Elevator Company Elevator system
KR20220111278A (ko) * 2019-12-17 2022-08-09 인벤티오 아게 검사를 위해 엘리베이터를 작동시키는 방법
CN115515878A (zh) * 2020-05-08 2022-12-23 因温特奥股份公司 通过可靠地配置电子安全装置来运行人员运送设备的方法
CN113543105B (zh) * 2021-07-20 2023-12-01 盐城市质量技术监督综合检验检测中心(盐城市产品质量监督检验所) 一种面向电梯安全监控的边缘计算网关及其监控系统、方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173814B1 (en) 1999-03-04 2001-01-16 Otis Elevator Company Electronic safety system for elevators having a dual redundant safety bus
DE69926244T3 (de) 1999-12-20 2012-01-05 Mitsubishi Electric Corporation Schachtsicherheitssystem für Aufzug
US6357553B1 (en) 2000-09-07 2002-03-19 Otis Elevator Company Elevator car access key switch
DE50205296D1 (de) * 2001-09-18 2006-01-19 Inventio Ag Siecherheitskreis für aufzugstüren
US6603398B2 (en) 2001-11-16 2003-08-05 Otis Elevator Company Hoistway access detection system
ATE362457T1 (de) * 2003-08-25 2007-06-15 Inventio Ag Verfahren zur überprüfung einer aufzugsanlage und aufzugsanlage
CN101472830B (zh) 2006-06-30 2013-07-17 奥蒂斯电梯公司 具有浅井坑和/或低顶盖的电梯
SG139660A1 (en) 2006-07-26 2008-02-29 Inventio Ag Method of controlling access to an elevator car
US9422135B2 (en) * 2011-04-15 2016-08-23 Otis Elevator Company Elevator drive power supply control
EP2690050A1 (de) * 2012-07-27 2014-01-29 Inventio AG Liftkabine mit Wartungsfenster
EP3056460B1 (en) * 2015-02-13 2023-04-05 Kone Corporation Method for resetting an elevator control from inspection mode to normal mode

Also Published As

Publication number Publication date
CN108025887B (zh) 2019-09-24
US20180244496A1 (en) 2018-08-30
EP3347298B1 (de) 2019-11-20
BR112018003939B1 (pt) 2023-02-14
CA2996459A1 (en) 2017-03-16
WO2017042306A1 (de) 2017-03-16
BR112018003939A2 (pt) 2018-09-25
US11505428B2 (en) 2022-11-22
HK1247905B (zh) 2020-07-03
AU2016320400B2 (en) 2019-08-29
ES2759928T3 (es) 2020-05-12
CN108025887A (zh) 2018-05-11
EP3347298A1 (de) 2018-07-18
AU2016320400A1 (en) 2018-04-05

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