• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    DIAGNOSIS FAILURE TO INSTALL ELEVATOR AND COMPONENTS OF THE SAME THROUGH SENSOR. The present invention relates to an elevator installation (10) comprising a sensor (8) so that the vibrations generated during the operation of the elevator installation (10) are detected and an evaluation circuit (9), which is connected with the sensor (8) and so that the vibrations detected by the sensor can be evaluated. In this case, the detected vibrations can be compared using the evaluation circuit (9) with a predetermined operating value and a predetermined threshold value. The present invention also encompasses a method of operating said elevator installation (10)
    公开号:BR112014013968B1
    申请号:R112014013968-7
    申请日:2012-12-03
    公开日:2021-03-16
    发明作者:Hans Kocher；Christian Studer；Mirco Annen；Thomas Neuenschwander
    申请人:Inventio Ag；
    IPC主号:
    专利说明:

    [001] The present invention relates to an elevator installation with a sensor for detecting vibrations and a method of operating said elevator installation, according to the object of the embodiments.
    [002] The elevator installation comprises moving mechanical components such as unit, cab and axle doors, cabin door unit, a cabin door closing mechanism and guide rollers or guide shoes, functional capacity without defect of which must be guaranteed. To that end, the individual components are maintained at regular intervals in time and kept fit for work. The cost for these maintenance operations is relatively inefficient, since the maintenance intervals are fixed pre-set and are not oriented towards the effective use of a current elevator installation and its components.
    [003] A reliable indicator for the degree of wear of a moving mechanical component is represented by the degree of vibrations. In normal permissible operation, a certain degree of vibration is not exceeded. With the progressive wear of a component, the vibrations increase noticeably. If a predetermined degree of vibration is exceeded, then the point in time has been reached to restore the component for maintenance or to replace it.
    [004] Vibrations propagate as sonic sound waves or conveyed in solids and are detected by means of a sensor. Sonic waves should be understood here as waves that propagate in a gaseous medium such as air and by sound waves Petition 870190107005, of 10/22/2019, p. 4/27 2/17 conveyed in solids should be understood here as waves that propagate in a solid medium such as steel or iron. Sensors designed as microphones, acceleration pickups or voltage measurement sensors are suitable for detecting sonic waves and sound waves carried in solids. An evaluation circuit is connected with one or more sensors. The evaluation circuit and at least one associated sensor form a monitoring unit. The evaluation circuit comprises a processor by which the evaluation circuit evaluates sonic waves or sound waves transmitted in detected solids. The sonic waves or sound waves conveyed in detected solids can be evaluated in the evaluation circuit with respect to its amplitude and frequency and compared with a predetermined value. Conclusions about the functional integrity of the elevator installation and its components can be produced from them. If a specific threshold value is exceeded, a change of state alarm can be triggered. Correspondingly, maintenance operations can be carried out efficiently in the elevator installation, that is, only when a component actually needs to be serviced. Patent Specification WO 2009/126140 A1 shows, by way of example, said method of evaluation and comparison.
    [005] However, the reliability of the assessment is not discussed in WO 2009/126140 A1, since the vibrations of the lift installation are based not only on moving components in normal operation. Therefore, movements of passengers in the cabin or the cabin carrying an emergency stop can also produce vibrations, which possibly exceed a threshold value and thus trigger a change of state alarm. Therefore, monitoring of this type is susceptible to erroneous triggering of the change of state alarm. Petition 870190107005, of 10/22/2019, p. 5/27 3/17
    [006] An additional unresolved problem is represented by equipping an existing elevator installation with the monitoring unit, since the existing elevator control of the elevator installation is not intended for the purpose of evaluating data from the monitoring unit or even for the communication of status data, such as operating status of the elevator installation, speed or cabin position, to the monitoring unit. WO 2009/126140 A1 also does not comment on this problem.
    [007] Therefore, the present invention is based on the objective of developing an improved and more reliable monitoring unit to monitor the components of an elevator installation, particularly through the detection and assessment of vibrations.
    [008] In an additional aspect, an existing elevator installation must be able to be easily retrofitted with the monitoring unit to monitor the components.
    [009] The objective is fulfilled by an elevator installation equipped with a sensor and an evaluation circuit. In this case, vibrations generated during the operation of the elevator installation are detected by the sensor. The evaluation circuit is connected to the sensor. The vibrations detected by the sensor can be evaluated by the evaluation circuit. The elevator installation is distinguished by the fact that the detected vibrations can be compared by means of the evaluation circuit with a predetermined operating value and a predetermined threshold value.
    [0010] The operating value represents a value of vibrations that occur in normal acceptable operation of the elevator installation. The threshold value, against it, represents a vibration value that is unacceptable.
    [0011] In disturbance-free operation with intact integrity Petition 870190107005, of 10/22/2019, p. 6/27 4/17 functional of the components the generated vibrations are in a characteristic frequency range and / or amplitude range. In the case of progressive wear and aging of the components, said frequency range or amplitude range changes accordingly. The referred changes in the vibration behavior can be detected by the sensor via sonic waves or sound waves transmitted in solids.
    [0012] Vibrations are captured by the sensor of sonic waves or sound waves transmitted in solids, passed in the evaluation circuit and spectral evaluated in it. This means that vibrations are evaluated with respect to amplitude and frequency. The vibrations thus evaluated are compared with the operating value and the threshold value. The operating value represents a vibration value as is generally the case in normal operation of the elevator installation. Differently, the threshold value represents a non-permissible vibration value that indicates malfunction or excessive wear of a component. The evaluation circuit has for this evaluation at least one processor that performs the spectral analysis and the value comparison and the memory unit in which the operating value and the threshold value are stored.
    [0013] An advantage of this two-stage value comparison lies in establishing the operating value, since it can be verified for this without feedback from the elevation control if the elevator installation is in operation or inactive. This is particularly advantageous in the case of retrofitting for installation of elevations. Therefore, for example, the evaluation circuit during the inactivity of the elevator installation can independently decide whether the components of the monitoring unit that are not needed can be arranged in a standby mode and triggered from standby mode again. Petition 870190107005, of 10/22/2019, p. 7/27 5/17 only when the evaluation circuit determines an operating value.
    [0014] In an additional aspect, a quality value can be calculated by means of the evaluation circuit by comparing the vibrations with the operating value and the threshold value. The quality value is calculated from the relationship between the time period in which the threshold value is reached or exceeded and the time period in which the operating value is reached or exceeded. The evaluation circuit compares said quality value with the predetermined critical quality value. The critical quality value is preferably stored in the memory unit. If the critical quality value is reached or exceeded, then a status alarm can be triggered. The change of state alarm indicates that at least one component of the monitored elevator installation must be replaced or repaired.
    [0015] Thanks to the calculation of the quality value and the comparison with the critical quality value, erroneous triggering of the change of state alarm is greatly avoided, since the causes that occur once, such as an emergency stop or movements of passengers in the cabin that lead to vibrations that are above the threshold value, can be filtered over time by assessing the threshold value. These unique events therefore do not automatically lead to an unwanted change of state alarm. It is also guaranteed that during the operation of the lift installation only vibrations that are above the threshold value for a longer period of time trigger a change of state alarm.
    [0016] In an additional aspect, a change of state alarm can be triggered in case of exceeding the operating value for a predetermined period of time. The evaluation circuit can thus test the functional capacity of the sensor and the connection to the sensor, Petition 870190107005, of 10/22/2019, p. 8/27 6/17 since each elevator installation has a specific use characteristic. Therefore, the elevator installation in an office building is continuously used during the working day and is stationary at night and on weekends in addition to individual hours. Based on the aforementioned, it can be assumed that in the elevator installation for the weekend it is stationary for approximately 62 hours, that is to say from Friday to night from about 18:00 hours until the morning of Monday at around 08 : 00 hours. On weekdays, downtime can be correspondingly reduced to approximately 14 hours. In a case of a residential building with numerous apartments, against it, the elevator installation is typically used constantly on a daily basis, thus also on the weekend during the day until the last part of the night. Longer downtime is mainly expected at night between approximately 10 pm and 6 am. Therefore, in the case of a larger housing building, downtime is a maximum of approximately 8 hours. The evaluation circuit can now be configured so that if vibration signals are not received by an associated sensor for a specific period of time of approximately 8, 14 or more hours, a change of state alarm is triggered.
    [0017] In particular, in this form of change of state alarm the reason for triggering, that is, the failure of the sensor or the interruption of the connection with the sensor, can also be communicated, which simplifies the location of the disturbance to a Maintenance Engineer.
    [0018] In a particularly preferred embodiment, the evaluation unit comprises a unit of time data. The evaluation circuit can thus preset the length of time until triggering a change of state alarm based on Petition 870190107005, of 10/22/2019, p. 9/27 7/17 absence of the operation value depending on the time of day and / or date. Therefore, a change of state alarm can be triggered during the day in a heavily frequented elevator installation when the operating value has been reduced for at least an hour. In a smaller residential building, the triggering of a state change alarm may occur only after several weeks, since the installation of an elevator, for example, may be inactive during the summer holidays for a period of time. longer time.
    [0019] Still in an additional aspect the present invention refers to the establishment of the operating value through a learning path of the elevator installation. The referred learning path is carried out after the installation of the evaluation circuit and the associated sensor. In this case, the sensor captures the vibrations generated during the referred learning path and the evaluation circuit stores the referred vibrations as the operating value in the memory unit.
    [0020] An advantage in case of detecting the operating value through a learning path lies in the fact that always the same monitoring unit, which consists of the sensor and the evaluation circuit, can be installed regardless of the type of installation elevator. This reduces coordination costs in the configuration and ordering of the monitoring unit. In addition, mounting the monitoring unit with an incorrectly stored operating value is excluded.
    [0021] The operating value can alternatively be stored in advance in the memory unit of the evaluation circuit depending on the type of elevator installation. In this case, the learning path is redundant.
    [0022] The evaluation circuit preferably calculates the threshold value Petition 870190107005, of 10/22/2019, p. 10/27 8/17 after the detection of the operation value through the learning path. In this case, the operating value serves as a starting position. The amplitudes, which are recorded for the operation value, of the frequencies in the spectral analysis are in this case multiplied by a factor capable of being predetermined. Finally, the calculated threshold value is stored in the memory unit.
    [0023] The threshold value can alternatively be filed in advance in the memory unit of the evaluation circuit depending on the type of elevator installation.
    [0024] According to an additional aspect of the method, the elevator installation is provided for the maintenance operation when a change of state alarm occurs. In that case a maintenance engineer not notified to carry out the maintenance of the elevator installation. This increases the efficiency of maintenance operations, since maintenance operations are performed only when a component has to be maintained or replaced.
    [0025] The present invention is clarified and further described in the following modalities and drawings, in which: Figure 1 shows an exemplary form of an elevator installation modality with a sensor to detect vibrations generated by defective operation of an elevator component in balance; Figure 2 shows a schematic illustration of the monitoring unit; e Figure 3 shows the spectral analysis, for example, of the vibrations detected by the sensor.
    [0026] Figure 1 shows the elevator installation 10. Said elevator installation comprises a cabin 1, a counterweight 2, a support and drive means 3, in which the cabin 1 and the counterweight Petition 870190107005, of 22 / 10/2019, p. 11/27 9/17 3 are suspended in a 2: 1 ratio and a 5.1 pulley unit. The drive pulley 5.1 is coupled with a drive unit, which is not shown in figure 1 for reasons of greater clarity, and is in operational contact with the support and drive medium 3.
    [0027] The cabin 1 and the counterweight 2 are movable substantially along guide rails vertically oriented by means of a rotational movement of the drive pulley 5.1, which transmits a drive torque from the drive unit to the support and drive medium 3. For reasons of greater clarity, the guide rails are not shown in figure 1. The cabin 1 and the counterweight 2 are guided on the guide rails by means of guide elements such as, for example, guide shoes or guide rollers .
    [0028] The counterweight 2 is in this case suspended in a first loop of the support and drive means 3. The first loop is formed by a part of the support and drive means 3 which is between the first end 3.2 of the support means. support and drive 3 and a bypass roller 5.2. Counterweight 2 is suspended in the first loop by means of a 4.1 bearing. Counterweight 2 is for this purpose coupled with bearing 4.1. In the illustrated example, the bearing 4.1 represents the fulcrum of a counterweight support roller 4. In this case, the support and / or drive means 3 extends from a first attachment point, in which the first end 3.2 of the middle support and / or drive is fixed down on the counterweight support roller 4. The support and / or drive means 3 loops around the counterweight support roller 4 by approximately 180 ° and then extends to up to the first bypass roller 5.2.
    [0029] Cabin 1 is suspended on a second handle of the support and / or drive means 3. The second handle is formed by a part of the support and / or drive means that is between Petition 870190107005, of 22 / 10/2019, p. 12/27 10/17 second end 3.1 of the support and / or drive means 3 and the second drive pulley 5.1. Cabin 1 is suspended on the second loop by means of two cabin support rollers 7.1, 7.2. In this case, the support and / or drive means 3 extends from a second fixation point, in which the second end 3.1 of the support and / or drive means is fixed, downwards to a first support roller of cabin 7.1. The support and / or drive means 3 wrap around the first roll of the roll holder 7.1 at approximately 90 °, then extend substantially horizontally to the second roll of roll stand 7.2 and wrap around the second roll roll of cabin 7.2 by approximately 90 °. In addition, the support and / or drive means 3 extends upward to the drive pulley 5.1. from the drive pulley 5.1 the support and / or drive means 3 finally go to the first bypass roller 5.2.
    [0030] The two fixing points to which the first and second ends 3.2, 3.1 of the support and / or drive means 3 are fixed, the bypass roller 5.2, the drive pulley 5.1 and the rails of the cabin 1 and the counterweight 2 are coupled indirectly or directly to the support structure, typically shaft walls.
    [0031] The first end 3.2 of the support and / or drive means 3 is coupled with a sensor 8. The sensor 8 detects the sound waves transmitted in solids transmitted to them by the support and / or drive means 3.
    [0032] In an alternative form of the modality, sensor 8 is coupled to a guide rail of the counterweight 2. In relation to this, sensor 8 detects the sound waves transmitted in solids that the guide rail transmits to sensor 8.
    [0033] Sound waves transmitted in solids arise during the operation of the installation of elevator 10, due to vibrations of Petition 870190107005, of 10/22/2019, p. 13/27 11/17 moving components of the elevator. For example, vibrations occur due to the play between the guide elements of the cabin 1 or the guide elements of the counterweight 2 and the corresponding guide rails, due to the drive unit, due to the play in the bypass roller bearings. 5.2, the drive pulley 5.1, the cabin support rollers 7.1, 7.2 and the counterweight support roller 4, and due to the vibrations of the support and drive medium 3 itself.
    [0034] In addition, vibrations can also be produced by movements of the cabin and door axis, door activation and the like. Vibrations also occur in the bearing 4.1, in which the counterweight 2 is suspended, as well as in the guide elements in which the counterweight 2 is guided on the guide rails.
    [0035] All the components and additional mobile components mentioned above that are not mentioned generate, in a disturbance-free operation, vibrations that are in a characteristic frequency range and amplitude range. Over time, these elevator components are subjected to the wear phenomenon that is reflected in a changed frequency range and amplitude range.
    [0036] The positioning of sensor 8 in the region of the elevator installation 10 is not limited to the arrangement, which is shown in the example, in the first end 3.2 of the support and / or drive medium 3 and the detection of sound waves transmitted in solids. The positioning of sensor 8 as well as the way of detecting vibrations, that is, with respect to sonic waves or sound waves conveyed in solids, is oriented towards the components to be monitored and the configuration of the elevator installation 10, particularly the monitoring unit, by the technician.
    [0037] A sensor 8 designed for the purpose of detecting sound waves transmitted in solids, for example, is capable of being positioned Petition 870190107005, of 10/22/2019, p. 14/27 12/17 at the second end 3.1 of the support and / or drive medium 3. Sound waves transmitted in solid transmitted on the side of the cabin through the support and / or drive medium 3 are thus detected. The support rollers 7.1, 7.2 of the cabin 1 or additional components that are arranged in the cabin 1 can thus be monitored.
    [0038] In addition, a sensor to monitor the motor or additional drive parts, such as the transmission or the 5.1 drive pulley, is able to be positioned in the motor housing in order to detect the vibrations generated by the components to be monitored .
    [0039] Sound waves transmitted in solids are also detected in the region of the cabin 1, for example, by sensors attached to the door panel of the cabin door, a housing of the door driving element, a panel of the cabin wall or the cabin floor. In this way the vibrations of the moving components, such as the cabin door, cabin support rollers 7.1, 7.2, cabin guide elements 1 or door drive element are capable of being measured.
    [0040] Finally, the moving components of the door shaft generate vibrations, which can be measured, for example, the sound waves transmitted in solids in the door panels of a door shaft. A sensor may, for the detection of said sound waves transmitted in solids, preferably be arranged in the door panel.
    [0041] A group of additional sensors refers to sensors that detect sonic waves. Said sensors measure vibrations of components of the elevator installation, which are detected as air pressure waves. The arrangement of these sensors is possible within a whole region of the axis space whenever the vibrations of the components are detected as sonic waves. Petition 870190107005, of 10/22/2019, p. 15/27 13/17
    [0042] Sensor 8 preferably detects sonic waves or sound waves carried in solids in a frequency range between 0 and 60,000 Hz, particularly between 0 and 2,500 Hz.
    [0043] Figure 2 shows the monitoring unit 20 comprising at least one sensor 8 and the evaluation circuit 9. Sensor 8 transforms the sonic waves or sound waves transmitted into detected solids into a signal and transmits said signal to a evaluation circuit 9 by means of a signal transmission path, typically a signal line or a cable-free connection. Said evaluation circuit 9 is provided for the evaluation of sonic waves or sound waves transmitted in detected solids.
    [0044] The evaluation circuit 9 comprises at least one analog-to-digital converter 14, a processor 11, a memory unit 12 and a time data unit 13. The analog signals that arise from sensor 8 are in this case first converted by the analog to digital converter 14 into a digital signal. Said digital signal is communicated to the processor 11 and spectral analyzed for it, in particular the frequencies and amplitudes of the transmitted sonic waves or of the sound waves transmitted in solids. The processor 11 determines the frequency bands and establishes the measured signal strength for each of said frequency bands. By frequency range the frequency range must be understood here, for example, the frequency range from 1.297 to 1.557 Hz (see figure 3). The signal strength denotes a value dependent on the amplitude of the frequencies measured in that frequency range.
    [0045] Processor 11 now establishes the measured signal strength for each determined frequency range and compares said signal strength in the frequency bands with a first signal strength, which is filed for the frequency range Petition 870190107005, of 22 / 10/2019, p. 16/27 14/17 corresponding to the memory unit 12, or the second signal strength, which is filed for the corresponding frequency range in the memory unit 12 and which is above the first signal strength. The first signal strength corresponds to the operating value and the second signal strength corresponds to the threshold value.
    [0046] Processor 11 counts the number of time steps in which the signal strength in operation of the elevator installation reaches or exceeds the operating value and the number of time steps in which the signal strength in operation of the elevator installation lift reaches or exceeds the threshold value. The determination of the time steps required for this purpose is provided by a time data unit 13 for the processor 11.
    [0047] Subsequently, the ratio of the time steps with threshold value to the time steps with operating value is determined in processor 11 in an additional evaluation. This relationship represents the quality value of the vibrations. If that quality value exceeds a critical defined quality value then a change of state alarm is triggered. Occasional disturbances arise only for a short period of time or few steps of time are thus being filtered out.
    [0048] Figure 3 shows an example of vibration assessment. The measured frequencies are divided here into ten frequency bands between 0 and 2.595 Hz. The signal strength over time or time steps is recorded for each of the said frequency bands. In figure 2 it is apparent that an operating value is predetermined by the frequency range 1.297 - 1.577 Hz. From the said operating value a threshold value is calculated that here, for example, is 100% above the operating value. The threshold value can preferably be set at least 10% above the operating value.
    [0049] The signal strength exceeds the permissible threshold value for Petition 870190107005, of 10/22/2019, pg. 17/27 15/17 the last frequency range mentioned between time steps 130 and 200, 200 and 250, 270 and 310, 315 and 380, 400 and 440 and 480 and 540. In an additional assessment of the quality value, the critical quality value is exceeded three times ("route not ok"). A change of state alarm is triggered in these three cases. The signal strength is once above the threshold value. Since the calculated quality value is below the predetermined critical quality value, no state change alarm occurs. The excess of the threshold value is attributed to a single brief event, that is, a collision with the side wall of the cab ("collision of the car wall"). This short event is filtered by the additional assessment of the quality value.
    [0050] The value of critical quality is established here, for example, at 10%. This means that from 100 steps of time with the measured signal strength that are above the operating value, 10 steps of time with the measured signal strength that are above the threshold value appear. Correspondingly, in the assessment described above, the quality value is three times above the critical quality value of 10% and the quality value is once below the critical quality value of 10% despite exceeding the threshold value.
    [0051] The value of critical quality can preferably be set at least 10%. In additional preferred embodiments the value of critical quality can also be set at least 20, 30, 40 or 50%. The critical quality value is preferably stored in the memory unit 12 of the evaluation circuit 9.
    [0052] The operating value is preferably determined by means of a learning path. During the referred learning path, sensor 8 measures the vibrations that occur. The characteristic signal strength for each frequency range is determined from Petition 870190107005, of 10/22/2019, p. 18/27 16/17 same in the evaluation circuit 9 or the processor 11, for example, a maximum signal strength or an average signal strength. Said signal strength is then stored in the memory unit 12 of the evaluation circuit 9 as an operating value. The threshold value can preferably be calculated from the operating value and represents the characteristic signal strength increased by a certain percentage. Said threshold value can be calculated on processor 11.
    [0053] An additional assessment of vibrations refers to the self-test of sensor 8 or the signal transmission path. The evaluation circuit 9 or the processor 11 for this purpose counts the time steps in which the signal strength does not reach the operating value. Said time steps represent a period of time in which the elevator installation 10 is stationary. Processor 11 checks whether said time period exceeds a specific time value. To that end, processor 11 compares the time period with a time value stored in the control unit. If processor 11 observes that there is an excess of said time value, then malfunction of the sensor is assumed. Said time value is calculated based on the usage profile of the characteristic of the elevator installation 10 and represents a period of time in which the elevator installation 10 would, most likely, have been used. If that time value is exceeded, a change of state alarm is triggered in a similar way.
    [0054] The triggering of the change of state alarm has the consequence that the elevator installation 10 is provided for the maintenance operation, in which the operating disturbance of the elevator installation 10 is eliminated. For example, an alarm is communicated to a service center, which instructs a maintenance engineer to perform maintenance on the elevator installation Petition 870190107005, 10/22/2019, p. 19/27 17/17 corresponding 10. Alternatively, when a change of state alarm is triggered, the maintenance engineer is directly notified by means of a mobile radio receiving system connected to the elevator installation to carry out the maintenance of the installation of corresponding elevator 10.
    [0055] For safety reasons the elevator installation can also be stopped when a change of state alarm occurs. In this case, a maintenance engineer is similarly instructed to perform maintenance on the elevator installation and put it back into operation.
    [0056] The detection of vibrations by sensor 8 and the evaluation of those referred to in evaluation circuit 9 according to the procedure mentioned above is not restricted to the illustrated configuration of the elevator installation 10. Therefore, the monitoring of vibrations of moving components is also refers to an elevator installation with a suspension ratio of 1: 1, 3: 1, etc., elevator installations without a counterweight, elevator installations with a motor space or in general elevator installations in which moving components cause vibrations .
    [0057] By deviating from the example illustrated in figure 1 it is also possible to position simultaneously, in different locations of the elevator installation, several sensors that have a common evaluation circuit, are allocated in groups to an evaluation circuit or each one has its own evaluation circuit. Petition 870190107005, of 10/22/2019, p. 20/27 1/2
    权利要求:
    Claims (10)
    [0001]
    1. Elevator installation (10) with - a sensor (8), with which vibrations, which are generated during the operation of the elevator installation (10), are detected and - an evaluation circuit (9), which is connected with the sensor (8) and with which the vibrations detected by the sensor can be evaluated, and the detected vibrations can be compared by means of the evaluation circuit (9) with a predeterminable operating value and a predeterminable threshold value, characterized by fact that a quality value can be calculated through the evaluation circuit (9) by comparing the vibrations with the operating value and the vibrations with the threshold value, and the quality value is calculated from a ratio between the time period, in which the threshold value is reached or exceeded, and the time period, in which the operating value is reached or exceeded.
    [0002]
    2. Elevator installation (10) according to claim 1, characterized by the fact that a change of state alarm can be triggered if the critical quality value is exceeded.
    [0003]
    Elevator installation (10) according to claim 1 or 2, characterized by the fact that a change of state alarm can be triggered if the operating value has fallen below for a predetermined period of time.
    [0004]
    4. Elevator installation (10) according to claim 3, characterized by the fact that the time period is at least one hour.
    [0005]
    5. Installation of an elevator (10), according to any of the preceding claims, characterized by the fact that the operating value can be established by means of a Petition 870190107005, of 10/22/2019, p. 21/27 2/2 elevator installation learning (10).
    [0006]
    6. Method for operating an elevator installation (10) with - a sensor (8) and - an evaluation circuit (9), which is connected with the sensor (8), with a sensor (8) detecting vibrations, which are generated during the operation of the elevator installation (10), and the evaluation circuit (9) evaluates the vibrations detected by the sensor (8), and the evaluation circuit (9) compares the vibrations detected with a predeterminable operating value. and a predeterminable threshold value, characterized by the fact that the evaluation circuit (9) calculates a quality value by comparing the vibrations with the operating value and the vibrations with the threshold value, and the quality value is formed from a ratio between the time period, in which the threshold value is reached or exceeded, and the time period, in which the threshold value is reached or exceeded.
    [0007]
    7. Method according to claim 6, characterized by the fact that a change of state alarm is triggered if the critical quality value is exceeded.
    [0008]
    8. Method according to claim 6 or 7, characterized by the fact that a change of state alarm is triggered if the operating value has fallen below for a predetermined period of time.
    [0009]
    9. Method according to claim 8, characterized by the fact that a period of time of at least one hour is predetermined.
    [0010]
    10. Method according to any one of claims 6 to 9, characterized by the fact that the operating value is established by means of a learning path for the elevator installation (10).
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    BR112014013968A8|2017-06-13|
    IN2014CN04256A|2015-07-17|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-15| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-01-12| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-16| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 03/12/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP11193507.8A|EP2604564A1|2011-12-14|2011-12-14|Error diagnosis for a lift assembly and its components using a sensor|
    EP11193507.8|2011-12-14|
    PCT/EP2012/074238|WO2013087439A1|2011-12-14|2012-12-03|Fault diagnosis of a lift system and the components thereof by means of a sensor|
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