EP3931140A1 - Wartungsverfahren für eine aufzuganlage das wartungsschritte verifiziert - Google Patents
Wartungsverfahren für eine aufzuganlage das wartungsschritte verifiziertInfo
- Publication number
- EP3931140A1 EP3931140A1 EP20706665.5A EP20706665A EP3931140A1 EP 3931140 A1 EP3931140 A1 EP 3931140A1 EP 20706665 A EP20706665 A EP 20706665A EP 3931140 A1 EP3931140 A1 EP 3931140A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- maintenance
- elevator control
- elevator
- interaction
- steps
- 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.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000003993 interaction Effects 0.000 claims abstract description 75
- 238000012790 confirmation Methods 0.000 claims description 33
- 238000012360 testing method Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 14
- 230000000007 visual effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000011990 functional testing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000003190 augmentative effect Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000011179 visual inspection Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
-
- 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
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
Definitions
- the invention relates to a method for maintaining an elevator installation, a specially designed elevator controller to support the maintenance method, and an elevator installation with such an elevator controller.
- Elevators are very complex technical systems that are in operation for a relatively long time. Usage times of several decades are not uncommon. To ensure safety at the same time, it is necessary to carry out regular maintenance work on various components. For this purpose, the elevator manufacturer usually issues a maintenance plan that specifies exactly which work is to be carried out by the service technician. In practice, however, it has been shown that not all service technicians carry out the specified maintenance work. So it happens that the work specified by the elevator manufacturer is marked as completed in the maintenance plan, but was not actually carried out. Various measures have already been tried to prevent this. For example, QR codes were attached to the areas of the elevator system to be assessed.
- the QR code should then be scanned by the service technician after the respective maintenance step to prove that the service technician has actually visited the point to be assessed. But also here it has been found in practice that this control can be bypassed. For example, it was observed that copies of the QR codes were made and placed in folders. The service technician was able to scan the QR code without having to go to the assessing body.
- the object of the present invention is therefore to provide a maintenance method that is proof against deception.
- This object is achieved by a method for maintaining an elevator installation with an elevator control comprising at least one maintenance step, the maintenance step comprising at least one interaction with the elevator control.
- the elevator control confirms that the maintenance step has been carried out based on the at least one interaction.
- a maintenance step in the sense of this application is a functional check of a component of the elevator system. This can be done, for example, by a visual inspection of the component. As an alternative or in addition, the functional check can also be carried out through controlled use of the component under suitable test conditions.
- the elevator control provided by the elevator manufacturer thus serves as a control instance as to whether the intended maintenance step has been carried out.
- the elevator control receives incoming signals and compares them with at least one stored interaction signature. If the interaction signature is positive, the elevator control confirms the maintenance step.
- the incoming signals are particularly caused by the interaction.
- an interaction signature is understood to be an input that is received by the elevator control and is characteristic of a special process.
- the interaction signature can be a special sensor signal that is received on a specific input channel, or a specific sequence of special sensor signals.
- a special input by pressing a button or a predetermined file transfer is also possible.
- a maintenance plan in particular, is stored in the elevator control, which includes a plurality of maintenance steps with a respective associated interaction signature.
- the elevator control has an operating mode and a maintenance mode.
- the comparison of the incoming signals with the at least one stored interaction signature then only takes place in maintenance mode.
- the method for maintenance then comprises the detailed step of putting the elevator control into the maintenance mode.
- the fact that the comparison is only carried out in the maintenance mode results in a lower computing load on the elevator control.
- the risk of incorrect identifications is reduced, which can occur if, during normal operation of the elevator installation, signals to the elevator control occur by chance that correspond to a stored interaction signature.
- the method is developed in such a way that it comprises a plurality of maintenance steps that are to be carried out according to a predetermined maintenance pattern.
- Each of the maintenance steps from the plurality of maintenance steps includes at least one interaction with the elevator control. Based on this at least one interaction per maintenance step, the elevator control confirms that the maintenance steps have been carried out and confirms compliance with the maintenance pattern.
- a maintenance pattern is understood to mean a set of maintenance steps with a fixed correlation.
- the correlation can be, for example, a fixed sequence of all maintenance steps or a subset of maintenance steps.
- the correlation can include predetermined time intervals between maintenance steps from the plurality of maintenance steps.
- the maintenance pattern can include a time sequence of the maintenance steps.
- the method is developed in such a way that the elevator control receives incoming signals and compares them with stored interaction signatures, so that a sequence of positively identified interaction signatures results.
- the elevator control then compares the sequence of positively identified interaction signatures with the maintenance pattern, which is preferably stored in the elevator control. If the maintenance pattern is positive, the elevator control confirms the maintenance pattern.
- the maintenance pattern comprises at least one of the following properties:
- the additional check of the maintenance pattern can, for example, verify that the maintenance steps are being carried out in the intended sequence.
- the entire maintenance process can also be checked for plausibility. For example, if a first maintenance step requires the service technician to be present at a first location in the elevator system (for example the shaft pit) and a later maintenance step the presence of the service technician at a second location of the elevator installation (for example machine room), the maintenance pattern advantageously comprises a minimum time interval between these two maintenance steps. This minimum time interval is given by the minimum time that the service technician needs to get from the first location of the elevator system to the second location of the elevator system.
- the elevator control therefore checks whether the chronological sequence of the maintenance steps is realistically possible. This makes it even more difficult to deceive when performing maintenance.
- the at least one interaction with the elevator control includes the production and transmission of image information about the service technician's environment to the elevator control.
- the image information can consist of component photos, for example.
- Other variants are component videos or the use of an augmented reality device (e.g. a HoloLens).
- an augmented reality device With an augmented reality device, the image information of the environment is analyzed and information generated by computer is added. The user is then shown an overlaid image of both information.
- the image information is used to verify that the service technician is actually present at the relevant component.
- the method can also include image recognition in which it is checked whether the image information actually shows the component being searched for.
- the date and time stamp of the image information can be read out in order to check whether the recording is currently made. This makes possible deception even more difficult.
- the processing of the image information is preferably already carried out in the augmented reality device.
- the augmented reality device does not transmit the originally recorded image to the elevator control, but instead the information that a certain component has been correctly recognized.
- processing can already be carried out in the mobile device (e.g. camera, smartphone, tablet, etc.) and only the result can be transmitted to the elevator control. This is also understood as image information in the context of this application.
- the image processing is carried out in the mobile device, preferably not only the result is transmitted to the elevator control, but also an Verification signal (e.g. a hash code). This prevents the data transmitted to the elevator control from being generated by the correct software and not being manipulated.
- Verification signal e.g. a hash code
- the at least one interaction with the elevator control includes performing a test drive monitored by the elevator control, opening a door monitored by the elevator control, or performing a brake test monitored by the elevator control.
- These interactions with the elevator control have the advantage that the elevator control is involved in a test drive anyway. No additional signal to the elevator control is required.
- the service technician triggers a test drive with an input signal to the elevator control.
- the elevator control then performs the test drive on the one hand to ensure the proper functioning of the elevator system and at the same time confirms that the test drive has been carried out.
- Other maintenance steps that are also triggered by the elevator control are verified in an analogous manner. This is, for example, the execution of a brake test monitored by the elevator control or the implementation of a functional test of at least one door, for example a shaft door or car door, monitored by the elevator control.
- the at least one interaction with the elevator control includes the removal of a visual restriction monitored by the elevator control.
- a maintenance step includes the visual inspection of the shaft pit.
- the elevator control receives a signal that the landing door has been opened. This signal can be used by the elevator control to confirm this maintenance step.
- other visual restrictions such as machine housing, switch cabinet doors, brake covers, access doors to the machine room or shaft pit or similar visual restrictions can also be monitored by the elevator control by means of sensors, so that a sensor signal is generated to the elevator control when a corresponding visual restriction is removed. This sensor signal can then be used by the elevator control to confirm this maintenance step.
- the at least one interaction with the elevator control includes the actuation of one connected to the elevator control Service button.
- the actuation of the service button serves to verify the presence of the service technician at a certain location of the elevator system. In this way it can be ensured that the service technician has actually visited the component to be serviced.
- the aforementioned methods are developed in such a way that the confirmation of the maintenance step or the confirmation of the maintenance pattern by the elevator control includes at least one of the following steps:
- Filing a confirmation entry in a maintenance log file elevator control has the advantage that all information about the maintenance history is automatically collected at the location of the elevator system and can be displayed if necessary.
- Sending a confirmation signal to a remote system has the advantage that information about a large number of elevator systems can be collected in one place.
- the remote system can be a central service center from which many elevator systems and service technicians are monitored.
- the remote system can also be a data storage device (cloud) connected to the Internet. This enables a better evaluation of the information collected about the maintenance operations of a large number of elevator systems.
- the connectable maintenance control is, in particular, a handheld or a tablet computer that is carried by the service technician for the purpose of maintenance.
- the coupling to the elevator control can for example be done by cable but also wirelessly via Bluetooth, WLAN, cellular radio or another known wireless transmission type.
- Sending a confirmation signal to such a maintenance control has the advantage that the service technician receives a verified confirmation of the maintenance already on site in the device he is carrying.
- the invention also relates to an elevator control for an elevator installation, with a maintenance plan being stored in the elevator control which comprises at least one maintenance step and an interaction signature associated with the maintenance step.
- the elevator control designed to compare incoming signals with the interaction signature and to confirm the associated maintenance step in the event of a positive identification of the interaction signature.
- the elevator control comprises an operating mode and a maintenance mode.
- the elevator control includes a comparison module for comparing incoming signals with the interaction signature and is designed to feed the incoming signals to the comparison module in maintenance mode.
- a maintenance plan is stored in the elevator control which comprises a plurality of maintenance steps with a respective associated interaction signature.
- the maintenance plan also comprises a maintenance pattern.
- the elevator control is designed to compare a sequence of positively identified interaction signatures with the maintenance pattern and to confirm the maintenance pattern if the maintenance pattern is positively identified.
- a maintenance plan log for storing confirmation entries is stored in the elevator control.
- the elevator control includes an interface to a remote system, which is designed to transmit confirmation signals.
- the elevator control includes an interface to a maintenance control that can be coupled and is designed to transmit confirmation signals
- the elevator control has the same advantages that were explained above with regard to the method according to the invention.
- the object according to the invention is also achieved by an elevator installation with an elevator control as described above.
- the elevator system comprises at least one service button that is connected to the elevator control.
- the elevator installation preferably comprises a plurality of service buttons which are connected to the elevator control.
- the at least one service button is arranged in particular at one of the following locations:
- connection of the service buttons with the elevator control can be implemented both cable-based and wirelessly.
- the environment of a component is understood to mean the area from which there is a visual connection between the service technician and the component.
- the service buttons have the advantage that it can be reliably verified that the service technician has actually visited the corresponding area. There is also no additional effort for the service technician himself. After completing the corresponding maintenance step, the nearby service button only needs to be pressed to inform the elevator control that the maintenance step has been completed.
- the appropriate service buttons can be attached very inexpensively.
- Corresponding service buttons can also be easily retrofitted. For example, both the elevator control and the service buttons are then equipped with a radio module in order to communicate with one another. Such technology is known from radio-based light switches and can be purchased inexpensively.
- Fig. 1 is a flow chart of a first embodiment of the invention
- FIG. 3 shows a schematic representation of an elevator control according to the invention
- FIG. 4 shows a schematic representation of an elevator installation according to the invention.
- Fig.l is a flow chart of the inventive method for maintaining a
- Elevator system shown.
- the method comprises a plurality of maintenance steps which are carried out one after the other.
- a sequence of maintenance steps is shown, starting with a 1st maintenance step up to an nth maintenance step (n is a positive integer larger 1).
- n is a positive integer larger 1.
- the inner process is shown for the n.
- Maintenance step in the right part of Fig.l.
- At every maintenance step there is an interaction with the elevator control, during which a signal is generated to the elevator control. This signal is received by the elevator control and compared with a stored interaction signature. In the event of a positive identification of the interaction signature, the elevator control confirms the maintenance step.
- At the end of each maintenance step there is a confirmation, ie verification of the maintenance step by the elevator control.
- the maintenance steps can be a wide variety of activities, which are accordingly also associated with different interactions and thus also different signals to the elevator control.
- two different categories of interactions can be distinguished. On the one hand, these are interactions with the elevator control that are carried out exclusively for the purpose of verifying the maintenance step, and on the other hand, there are interactions with the elevator control that occur anyway during maintenance.
- the at least one interaction with the elevator control includes the production and transmission of image information about the service technician's environment to the elevator control.
- the image information can consist of component photos, for example.
- Other variants are component videos or the use of an augmented reality device (e.g. a FloloLens).
- an augmented reality device With an augmented reality device, the image information of the environment is analyzed and information generated by computer is added. The user is then shown an overlaid image of both information.
- the first category includes, for example, the actuation of a service button connected to the elevator control. This is explained in more detail below with reference to FIG.
- the actuation of the service button only serves to verify the presence of the service technician at a certain location in the elevator system. In this way it can be ensured that the service technician has actually visited the component to be serviced.
- Another example from this category is the production and transmission of image information about the service technician's environment to the elevator control.
- the image information can consist of component photos, for example.
- Other variants are component videos or the use of an augmented reality device (e.g. a FloloLens). With an augmented reality device the image information of the environment is analyzed and information generated by computer is added. The user is then shown an overlaid image of both information.
- the presence of the service technician on the component to be serviced is verified in all of these cases by the service technician producing image information of the component and transmitting this to the elevator control.
- the elevator control then verifies this image information in order to confirm the presence of the service technician on the component.
- the verification can include image recognition, for example, which checks whether the image information actually represents the component being searched for.
- the date and time stamp can be read out in order to check whether the image information is currently recorded.
- the second category of interaction with the elevator control includes, for example, carrying out a test drive monitored by the elevator control.
- the service technician triggers a test drive with an input signal to the elevator control.
- the elevator control then performs the test drive on the one hand to ensure the proper functioning of the elevator system and at the same time confirms that the test drive has been carried out.
- Other maintenance steps that are also triggered by the elevator control are verified in an analogous manner. This is, for example, the execution of a brake test monitored by the elevator control or the implementation of a functional test of at least one door, for example a shaft door or car door, monitored by the elevator control.
- the second category also includes interactions with the elevator control that inevitably occur during maintenance, even if they do not directly affect the component to be maintained.
- a maintenance step includes the visual inspection of the shaft pit. In order to carry out this maintenance step, it is necessary to open at least one shaft door manually or to trigger an automatic door opening. In both cases the elevator control receives a signal that the landing door has been opened. This signal can be used by the elevator control to confirm this maintenance step.
- other visual restrictions such as machine housings, switch cabinet doors, brake covers, access doors to the machine room or shaft pit or similar visual restrictions can also be monitored by the elevator control by means of sensors, so that a sensor signal is generated to the elevator control when a corresponding visual restriction is removed.
- This sensor signal can then be used by the elevator control to confirm this maintenance step.
- the interaction causes some kind of signal that is received by the elevator control.
- This signal is received by the elevator control and compared with a stored interaction signature.
- the elevator control includes a maintenance plan that is stored in the elevator control.
- the maintenance plan comprises at least one maintenance step and an interaction signature associated with the maintenance step. If the interaction signature is positive, the elevator control confirms the corresponding maintenance step. For example, it could be stored in the maintenance plan that the maintenance step “visual inspection of the shaft pit” includes the sensor signal via manual opening of the shaft door on the lowest floor as an interaction signature of this maintenance step. If the elevator control now receives a signal, it compares this incoming signal with the stored interaction signatures in the maintenance plan.
- the elevator control has a comparison module for this purpose. If this comparison results in a positive identification of the signal as the sensor signal via a manual opening of the shaft door on the lowest floor, the associated maintenance step "Visual inspection of the shaft pit" is confirmed.
- the elevator control has an operating mode and a maintenance mode.
- the above-described comparison of the incoming signals with the stored interaction signature takes place only in maintenance mode.
- the elevator control is first switched to maintenance mode.
- FIG. 2 shows a flow diagram of an alternative method for maintaining an elevator installation.
- the method comprises a plurality of maintenance steps which are carried out one after the other.
- a sequence of maintenance steps is shown, starting with a 1st maintenance step up to an nth maintenance step (n is a positive integer greater than 1).
- a final maintenance check is carried out after the majority of maintenance steps.
- the internal process is shown as an example for the nth maintenance step. The same applies to the further maintenance steps.
- the internal sequence of the final maintenance check is also shown in the right part of FIG.
- At every maintenance step there is an interaction with the elevator control, during which a signal is generated to the elevator control. This signal is received by the elevator control and compared with stored interaction signatures. In the case of a positive identification, the elevator control adds this interaction signature to a sequence of positively identified interaction signatures.
- an element for the sequence of positively identified interaction signatures is added.
- This sequence of positively identified interaction signatures is compared with a specified maintenance pattern in the step of the final maintenance check. If this comparison is positive, the elevator control confirms that the maintenance steps associated with these interaction signatures have been carried out and that the maintenance pattern has been adhered to.
- the elevator control confirms the maintenance step or confirms the maintenance pattern.
- This confirmation can be done in several ways.
- a confirmation entry is stored in a maintenance log of the elevator control.
- a confirmation signal is sent to a remote system provided.
- the remote system can be, for example, a central service center that monitors the maintenance processes of a plurality of elevator systems.
- the remote system can also be a data storage device (cloud) connected to the Internet.
- Another variant for confirming the maintenance step or the maintenance pattern is the sending of a confirmation signal to a maintenance control that can be coupled.
- the connectable maintenance control is, in particular, a handheld or a tablet computer that is carried by the service technician for the purpose of maintenance.
- the coupling to the elevator control can for example be done by cable but also wirelessly via Bluetooth, WLAN, cellular radio or another known wireless transmission type.
- the elevator control comprises a comparison module 15 and a control module 25.
- the comparison module 15 is designed to compare incoming signals 19 with one or more interaction signatures. This can take place continuously or only after the elevator control has been switched to a maintenance mode.
- the control module 25 carries out the other functions that are required to operate an elevator system. For example, the coordination of calls and the control of the drive and the doors.
- the incoming signals can be, for example, sensor signals 21 or also signals 23 from an operating terminal.
- the elevator control also includes a memory area 17.
- a maintenance plan 27 and a maintenance protocol 29 are stored in the memory area 17.
- the maintenance plan 27 comprises at least one maintenance step and an interaction signature associated with the maintenance step.
- the Maintenance plan 27 usually includes a plurality of maintenance steps with an associated interaction signature.
- the maintenance plan can also include a maintenance pattern that specifies a specific correlation of the maintenance steps.
- the comparison module 15 is also designed to compare a sequence of positively identified interaction signatures with the maintenance pattern. Consequently, the elevator control can carry out the method explained with FIG. 2 with a final maintenance check.
- the elevator control 13 includes the maintenance log 29. A corresponding confirmation entry is then stored in the maintenance log 29 as confirmation. Alternatively or in addition, the confirmation can also take place by sending a confirmation signal 31 to a remote system 33.
- the elevator control has an interface 35 to the remote system 33.
- the confirmation can also take place by sending a confirmation signal 37 to a maintenance control 39 that can be coupled.
- the elevator control has an interface 41 to the maintenance control 39 that can be coupled.
- the elevator control 13 can also initially generate a complete maintenance log 29 and then transmit this to a remote system 33 and / or a maintenance control 39 that can be coupled.
- the elevator system 43 comprises an elevator shaft 45 in which a car 47 with a car roof 48 is movably arranged.
- the elevator car 47 is connected to a counterweight 51 via a suspension element 49.
- the suspension element 49 is guided over a drive pulley 53 of a drive 55 and a deflection roller 54, so that the elevator car 47 can be moved in the elevator shaft 45 by means of the drive 55.
- the elevator shaft 45 has several accesses 57.
- the accesses 57 are each equipped with a shaft door 59, which are only opened when the car 47 is positioned in front of the respective access 57.
- the shaft doors 59 are opened and closed by means of the shaft door drives 61.
- the car 47 has a car door 63 which is opened and closed by means of the car door drive 65.
- the elevator system 43 also includes an elevator control 13. In addition to the usual functions that are required for operating the elevator system 43, the elevator control 13 is further developed to verify the maintenance of the elevator system 43. With proper maintenance of the elevator system 43, the service technician comes successively different locations of the elevator system 43 and inspects the components arranged there or carries out maintenance work on these components. For example, the service technician goes to the car roof 48, into the shaft pit and the machine room.
- Maintenance can also include removing corresponding panels from each of the accesses 57 in order to service the shaft door drives 61.
- the elevator system 43 comprises several service buttons 71 which are connected to the elevator control 13.
- the connection to the elevator control 13 is indicated in Figure 4 by dashed lines.
- this signal connection can be both cable-based and wireless.
- the service button 71 on the car roof 48 is also located in the vicinity of the car door drive 65.
- the service button 71 in the machine room 69 is also located in the vicinity of the drive 55 of the elevator system 43.
- This equipping of the elevator system 43 with service button 71 enables the service technician to press a service button 71 provided for this after each maintenance step.
- a signal is sent to the elevator control 13, which then confirms that this maintenance step has been carried out.
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019202675.3A DE102019202675A1 (de) | 2019-02-28 | 2019-02-28 | Verifiziertes Wartungsverfahren für eine Aufzuganlage |
PCT/EP2020/054134 WO2020173741A1 (de) | 2019-02-28 | 2020-02-18 | Wartungsverfahren für eine aufzuganlage das wartungsschritte verifiziert |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3931140A1 true EP3931140A1 (de) | 2022-01-05 |
Family
ID=69650578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20706665.5A Pending EP3931140A1 (de) | 2019-02-28 | 2020-02-18 | Wartungsverfahren für eine aufzuganlage das wartungsschritte verifiziert |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220204316A1 (de) |
EP (1) | EP3931140A1 (de) |
CN (1) | CN113727931B (de) |
DE (1) | DE102019202675A1 (de) |
WO (1) | WO2020173741A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19800714A1 (de) * | 1998-01-09 | 1999-07-15 | Kone Oy | Verfahren zur Wartung einer Aufzugsanlage und Aufzugsanlage |
BRPI0603625A (pt) * | 2006-08-30 | 2008-04-15 | Thyssenkrupp Elevadores S A | sistema supervisor de manutenção |
EP3166879A1 (de) * | 2014-07-08 | 2017-05-17 | Inventio AG | Wartungssystem für eine aufzugsanlage |
WO2016046328A1 (en) * | 2014-09-25 | 2016-03-31 | Fabiani Alessandro | System for monitoring and managing maintenance activities |
US10597254B2 (en) * | 2017-03-30 | 2020-03-24 | Otis Elevator Company | Automated conveyance system maintenance |
US10472207B2 (en) * | 2017-03-31 | 2019-11-12 | Otis Elevator Company | Passenger-initiated dynamic elevator service request |
CN107187982A (zh) * | 2017-06-26 | 2017-09-22 | 成都烽火源信息技术有限公司 | 一种电梯维保监管方法及系统 |
CN108298397B (zh) * | 2018-02-02 | 2020-01-07 | 河南中盛物联网有限公司 | 一种基于电梯物联网的电梯维保监测方法及监管平台 |
-
2019
- 2019-02-28 DE DE102019202675.3A patent/DE102019202675A1/de not_active Ceased
-
2020
- 2020-02-18 CN CN202080017491.4A patent/CN113727931B/zh active Active
- 2020-02-18 WO PCT/EP2020/054134 patent/WO2020173741A1/de unknown
- 2020-02-18 US US17/310,869 patent/US20220204316A1/en active Pending
- 2020-02-18 EP EP20706665.5A patent/EP3931140A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220204316A1 (en) | 2022-06-30 |
CN113727931A (zh) | 2021-11-30 |
WO2020173741A1 (de) | 2020-09-03 |
DE102019202675A1 (de) | 2020-09-03 |
CN113727931B (zh) | 2023-10-17 |
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