EP3556700A1 - Installation d'ascenseur dotée d'un dispositif de mesure de position ainsi que procédé de détermination d'une position d'une cabine d'ascenseur dans une cage d'ascenseur - Google Patents

Installation d'ascenseur dotée d'un dispositif de mesure de position ainsi que procédé de détermination d'une position d'une cabine d'ascenseur dans une cage d'ascenseur Download PDF

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Publication number
EP3556700A1
EP3556700A1 EP18168509.0A EP18168509A EP3556700A1 EP 3556700 A1 EP3556700 A1 EP 3556700A1 EP 18168509 A EP18168509 A EP 18168509A EP 3556700 A1 EP3556700 A1 EP 3556700A1
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EP
European Patent Office
Prior art keywords
sensors
measuring device
sensor
elevator
elevator car
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.)
Withdrawn
Application number
EP18168509.0A
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German (de)
English (en)
Inventor
Martin KUSSEROW
Silvan RITZ
Zack ZHU
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Inventio AG
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Inventio AG
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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP18168509.0A priority Critical patent/EP3556700A1/fr
Publication of EP3556700A1 publication Critical patent/EP3556700A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • B66B1/3492—Position or motion detectors or driving means for the detector
    • 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
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings

Definitions

  • the present invention relates to an elevator installation and to a method by means of which a current position of an elevator car in an elevator shaft of an elevator installation can be determined.
  • an elevator car In an elevator system, an elevator car is moved within a hoistway between different floors.
  • the elevator car can be stopped at the different floors. Adjacent to the elevator shaft shaft doors are provided in the floors. At least one car door is provided on the elevator car. If the elevator car stops at a floor, the car door and the local car door opposite the car door can be opened so that passengers can get in or out of the elevator car.
  • this should have an upwardly facing surface of a floor level, i. that portion of the floor in the floor reaching as far as the elevator shaft is at the same height as an upwardly directed surface of a cabin floor. That the two surfaces should be essentially at ground level. In other words, between the floor of the cabin and the adjacent floor within the floor, there should be no excessive step or step-like unevenness to prevent passengers from stumbling upon boarding or alighting.
  • level adjustment When controlled stopping the elevator car adjacent to a floor is therefore desirable to make the elevator car come to a halt at a height or at a level in which her cabin floor is largely at ground level adjacent to the adjacent floor level.
  • An activation of a drive of the elevator car used here is sometimes referred to as "level adjustment” or in English as “leveling”. How precise the level adjustment is to be carried out, ie which step formation is just acceptable, is generally governed by regulations, standards or laws. In most cases, level differences between adjoining surfaces of up to a few millimeters, for example less than 10 mm or less than 5 mm, are considered to be an acceptable upper limit.
  • EP 0 751 088 A1 describes a device for generating shaft information.
  • a light curtain with multiple light beams extends over the length of a car sill and over the cabin door height.
  • a hinged cover plate in the light curtain protrudes a hinged cover plate in the light curtain and is dimensioned so that a light beam strikes instead of a receiver bar on the cover plate.
  • the interrupted light beam may indicate a measure of an actual position of the elevator car. From a predetermined target value and the actual value of the car position, a correction variable can arise with which the elevator car is moved until it has reached the desired position.
  • an elevator installation which, in a technically simple manner by retrofitting a position-measuring device, is enabled to be able to reliably and / or with sufficient precision determine a current position of an elevator cage within the elevator shaft.
  • the position-measuring device can be of relatively simple construction, easy to install and / or as few as possible when retrofitting existing components of the elevator installation Components are required or additional components need to be installed on as few components of the elevator system.
  • a method for determining a position of an elevator car in an elevator shaft of an elevator installation in which a desired position determination can be realized with relatively simple technical means and / or a sufficiently precise position determination can be achieved.
  • an elevator installation which has an elevator shaft, an elevator car and a position-measuring device.
  • the elevator shaft at least one shaft door is arranged on a storey-side shaft wall adjacent to each of several floors, through which access to an elevator car that is held in the respective floor is to be opened and closed.
  • the access here is limited by a floor level, which reaches horizontally up to the elevator shaft.
  • the elevator car is vertically displaceable in the elevator shaft.
  • An enclosed by the elevator car interior is bounded below by a cabin floor.
  • the position measuring device is arranged on the elevator car and directed towards the storey-side shaft wall.
  • the position measuring device has a plurality of vertically stacked sensors.
  • Each of the sensors is configured to provide a first sensor signal when the sensor is positioned above an upward surface of the next adjacent floor level and a second sensor signal in a configuration in which the elevator car with its cabin floor is near a next adjacent floor level when the sensor is positioned below the upward surface of the next adjacent floor level.
  • the first sensor signal differs from the second sensor signal by more than a predetermined minimum signal distance.
  • a method for determining a position of an elevator car in an elevator shaft of an elevator installation according to an embodiment of the first aspect of the invention.
  • the procedure comprises at least the following steps, preferably in the order given: sensor signals are received by all sensors of the position-measuring device. Subsequently, a first group of sensors of the position-measuring device is determined, which supply a first sensor signal. Furthermore, a second group of sensors of the position-measuring device is determined, which supply a second sensor signal. The current position of the elevator car is then determined based on a limit position at which the first group of sensors vertically adjoin the second group of sensors.
  • an elevator installation such that its elevator cabin can be moved within a hoistway by means of a simply constructed and easy-to-install position measuring device with regard to its current position within the hoistway, in particular with respect to its relative position with respect to a next adjacent floor level , can be monitored.
  • the approach proposed herein requires only minor structural measures within the elevator installation, i. it only needs little or simple hardware to be provided in order to be able to reliably measure the position of the elevator car when it is in the vicinity of a floor level.
  • position information need not be provided at a plurality of positions along the hoistway.
  • no tape with magnetically or optically stored location-dependent information needs to be installed along the entire height of the hoistway.
  • the position-measuring device merely consists of a device which is mounted on the elevator car and is moved with it through the elevator shaft.
  • the position-measuring device does not require any further counterparts to be mounted at different positions in the elevator shaft in order to be able to determine a current position of the elevator car relative to a floor on which the elevator car is to stop.
  • the position measuring device has a plurality of sensors.
  • the position-measuring device should have at least three sensors, more preferably four, five, six, seven or more sensors.
  • the sensors are arranged vertically one above the other, that is, along a direction parallel to the direction of travel of the elevator car. Adjacent sensors may be vertically spaced or directly adjacent to one another.
  • the sensors can be constructed relatively simply and thus be inexpensive and / or reliable.
  • the sensors can have small dimensions. For example, each individual sensor can only measure a few millimeters or even less in the vertical direction.
  • the multiple sensors can all be identical.
  • Each of the sensors should be able to measure a physical parameter that changes significantly, depending on whether the sensor is located above a floor level or below the floor level.
  • a floor level is to be understood as that area of the floor of the floor which extends horizontally as far as the elevator shaft and over which a passenger must walk if he wants to enter or leave the elevator car through the shaft door.
  • the landing stage is thus stationary at each floor relative to the elevator shaft and represents the transition from the floor of the floor to the floor of the car holding the floor.
  • "Above the Floor level is intended here to mean that at least one sensing area of the sensor is positioned vertically above an upwardly directed surface of the landing stage.”
  • Below the floor level is intended to mean that at least the sensing area of the sensor is below the upper level of the floor level, ie below the floor level upwards facing surface of the floor level, is positioned.
  • Each of the sensors of the position-measuring device should be able to measure a physical parameter which differs significantly and as characteristic as possible in the area above the floor level in comparison to the area below the floor level.
  • the sensor signal determined by the sensor should change greatly, depending on whether the sensor is arranged above or below the floor level.
  • the sensor is intended to generate a first sensor signal which differs from a second sensor signal which the sensor generates when it is arranged below the floor level by more than a predetermined minimum signal spacing.
  • the minimum signal spacing may be selected depending on the type and / or operating conditions of the sensor. As a rule, it must at least be larger than a noise in the sensor signals generated by the sensor, but should in particular be greater than variations that occur in the sensor signals generated by the sensor as long as the sensor is located exclusively above the floor level or only below the floor level ,
  • the minimum signal distance can be determined, for example, by experiments, for example by arranging a sensor once above and once below a floor level and comparing occurring differences in generated sensor signals to the minimum signal distance, optionally taking into account a suitable surcharge or discount and / or suitable tolerance ranges.
  • the minimum signal distance can also be determined by subjecting the elevator installation including its position measuring device to a learning process in which the elevator car is specifically moved in the elevator shaft and sensor signals supplied by the sensors of the position measuring device are evaluated in the knowledge of a current position of the elevator car and for determining the minimum signal distance be used.
  • each of the sensors should be configured to have the first sensor signal and the second sensor signal more different than a plurality of first sensor signals, all supplied by the sensor, while the sensor is at different vertical distances above the next adjacent one Floor level is positioned, and as a plurality of second sensor signals with each other, which are all supplied by the sensor, while the sensor is positioned at different vertical intervals below the next adjacent floor level.
  • this information can be used to determine where the elevator car is currently relative to the floor to be approached.
  • this information can be evaluated to detect whether the cabin floor of the stopped car is at ground level to the landing stage, or whether there is a vertical difference in level between these two horizontal surfaces, ie whether there is a step between the car floor and the car due to insufficient leveling Floor level has formed.
  • the sensor signals of all sensors provided in the position-measuring device can be recorded.
  • the quantity of these sensor signals determines those sensor signals which correspond to the abovementioned first sensor signal, ie sensor signals which are output by the sensors when they are located above the floor level. Those sensors which output such first sensor signals are combined to form a first group of sensors.
  • those sensor signals which correspond to the abovementioned second sensor signal that is to say sensor signals which are output by the sensors when they are present, are determined from the set of sensor signals located below the floor level. Those sensors which output such second sensor signals are combined to form a second group of sensors.
  • sensors of the first group are arranged vertically above the floor stage and provide first sensor signals and sensors of the second group are arranged vertically below the floor stage and provide second sensor signals.
  • the first sensor signals and the second sensor signals should differ from one another more than a plurality of first sensor signals with one another and with one another as a plurality of second sensor signals.
  • the first sensor signals and the second sensor signals may differ from one another by at least the minimum signal spacing mentioned above.
  • the first sensor signals may be above a predetermined limit signal and the second sensor signals may be below the predetermined limit signal or the first sensor signals may be below a predetermined limit signal and the second sensor signals may be above the predetermined limit signal.
  • a threshold signal can be determined beforehand, for example, based on experiments or a learning phase.
  • Sensor signals which are output by a sensor and are above the limit value signal are interpreted as first or second sensor signals, and it is therefore assumed that the respective sensor lies above the floor level and thus belongs to the first group of sensors.
  • sensor signals below the limit value signal are interpreted as second or first sensor signals, and it is assumed that the respective sensor lies below the floor level and thus can be assigned to the second group of sensors.
  • the floor level or its upper edge can be recognized directly by means of the position measuring device mounted at a suitable location on the elevator car.
  • the upper edge for example, a guide rail of the floor assigned shaft door is used. The detection is then carried out in particular when the shaft door is closed. Therefore, no special changes or installations to the elevator shaft or at the floor levels are made, but the floor levels can, as they are typically designed and adjacent to the elevator shaft in an elevator system, recognized by the position measuring device and to determine the current position of the elevator car be used.
  • the position determined by means of the position measuring device can thus be output as a level difference between an upwardly directed surface of the landing stage and an upwardly directed surface of the cabin floor.
  • knowing that the edge of the floor level is in the range between the first group of sensors and the second group of sensors of the position measuring device, and optionally with the additional information, where the position measuring device is attached to the elevator car and thus relative to the cabin floor be inferred whether there is a level difference in the form of a step between the surface of the cabin floor and the surface of the floor level or whether they are aligned at ground level.
  • the position of the elevator car relative to the floor level can be determined may depend inter alia on a distance between adjacent sensors within the position measuring device. In general, it can be determined with certainty that the edge of the floor level lies somewhere between the position of the uppermost sensor of the second group of sensors and the position of the lowest sensor of the first group of sensors. The smaller the distance between adjacent sensors, the more accurate the position of the Elevator cab be determined. Typically, distances between adjacent sensors can range from a few millimeters or less to a few centimeters. For example, such distances may be in the range of 0.1 mm to 3 cm, more preferably in the range of 1 mm to 1 cm.
  • the position of the elevator car can be additionally determined by an interpolation taking into account a vertical distance between a sensor of the first group of sensors and a sensor of the second group of sensors, in particular by interpolation taking into account the vertical distance between the lowest sensor the first group of sensors and the top sensor of the second group of sensors.
  • the knowledge about the vertical distance between adjacent sensors of the position-measuring device can be used to be able to more accurately determine the position of the floor level relative to the position-measuring device as part of an interpolation.
  • a position measurement with an inaccuracy of less than the distance between adjacent sensors appears possible by, for example, taking into account in the interpolation, for example, how long the elevator car has been moved further down after the uppermost sensor of the second group of sensors has passed below the landing stage.
  • properties of a movement process of the elevator car can be taken into account in the interpolation.
  • the sensors used in the position-measuring device may be sensors that are capable of measuring physical parameters that significantly differ at positions above and below the floor level.
  • the sensors used can implement a wide variety of measurement principles and thus measure various physical parameters such as optical properties, magnetic properties, electrical properties, geometric properties, etc. depending on the location. It may be preferred that the sensors used measure the parameters contactless, for example, to avoid wear.
  • the sensors may be brightness sensors, color sensors, reflection sensors and / or distance sensors.
  • Brightness sensors can detect an intensity of light striking a sensor surface. The higher the light intensity, the stronger the sensor signal. In this case, the sensor signal linear or non-linear depend on the incident light intensity.
  • Brightness sensors can be configured, for example, as simple photodiodes. Such photodiodes can be provided inexpensively.
  • a plurality of photodiodes can be arranged separately from each other vertically. It is also possible to form a plurality of photodiodes, for example integrated with one another on a semiconductor substrate. If the position-measuring device is aligned with its sensors towards the storey-side shaft wall, more light usually hits a brightness sensor when it is arranged above a floor level, as if it is arranged below the upper edge of this floor level.
  • Color sensors are capable of detecting incident light of different colors, i. different spectral ranges, to distinguish from each other.
  • light which impinges on a color sensor, while it is arranged above the floor level usually has a different color than light which strikes the color sensor when it is arranged below the floor level.
  • Reflection sensors may generally detect reflectivity of a surface to which they are directed. In contrast to a pure brightness sensor, which depends on the ambient light striking it and thus measures quasi passive, a reflection sensor is generally able to actively send out light towards the surface to be measured and then to detect how much light from this surface is reflected. Thus, reflection sensors can also be operated well in a mostly quite dark elevator shaft. Depending on which reflectivity surfaces on the floor level and surfaces above the floor level in the elevator shaft have, sensor signals of the reflectance sensors of a position measuring device may be greater when the sensor is above the floor level or when the sensor is below the upper level of the floor level.
  • Distance sensors are generally capable of measuring a distance between them and a surface to which they are directed.
  • a distance sensor can measure different physical parameters for this purpose and / or technical Implement implementations.
  • a distance sensor may be designed as an infrared distance sensor, as an ultrasonic distance sensor or as a TOF distance sensor (time of flight).
  • TOF distance sensor time of flight
  • it can be used that a distance between the distance sensor provided on the elevator car and an opposing surface of, for example, an elevator shaft wall or a vertical area below the edge of the floor level varies significantly, depending on whether the respective distance sensor is arranged above or below the edge of the floor level ,
  • the position-measuring device has a controller which evaluates sensor signals from all the sensors of the position-measuring device.
  • the sensor signals of the sensors can already be processed within the position-measuring device by an integrated controller.
  • the position-measuring device with the controller can be set up to carry out a method according to an embodiment of the second aspect of the invention.
  • the controller may receive sensor signals from the various sensors and process or compare them. As a result, it can determine whether a sensor signal originates as a first sensor signal from a sensor arranged above the floor level or originates as a second sensor signal from a sensor arranged below the floor level. Finally, the controller can determine the position at which the first group of sensors adjoin the second group of sensors and thus indirectly infer the position of the elevator car relative to the floor level.
  • the controller can for this purpose have a signal processing unit and possibly a memory unit.
  • the signal processing unit can work analog or digital.
  • the signal processing unit may have a central processing unit (CPU).
  • the position-measuring device may have a data interface in order to transmit sensor signals from all sensors of the position-measuring device to an external evaluation device.
  • the sensor signals generated by the sensors also or only outside of the position measuring device to process.
  • the sensor signals can be transmitted via the data interface to an external data processing device and evaluated there.
  • the data processing device can be provided, for example, in a remote monitoring center.
  • the data processing device can also be set up in a data cloud ("cloud").
  • the sensor signals can be preprocessed in the position measuring device before being output via the data interface.
  • the data interface can be set up for a serial or parallel data output.
  • the position-measuring device is set up and arranged on the elevator car such that at least two of the sensors of the position-measuring device are arranged vertically above an upwardly directed surface of the cabin floor and at least two of the sensors of the position-measuring device are arranged vertically below the upward-facing surface of the cabin floor are.
  • the position-measuring device should preferably have at least four sensors, of which at least two sensors are arranged above and at least two sensors below the level of the cabin floor.
  • both the first group of sensors and the second group of sensors have at least two sensors.
  • sensor signals from sensors in one of the groups of sensors can be compared with one another and thus a better distinction can be made whether two sensors originate from the same group of sensors or can be assigned to different groups of sensors.
  • the fact that above and below the level of the cabin floor not only a single sensor is provided, but at least two sensors are achieved that even with a slight deviation of the level balance between the cabin floor and the surface of the floor level still at least one of the sensors above or below the level of the floor level remains and thus a position determination remains possible.
  • the position measuring device it may be advantageous to provide more than four sensors in the position measuring device. Also in this case should be at least two sensors above and at least two sensors be arranged below the level of the cabin floor. By providing more than four sensors, the measuring range in which the position-measuring device can determine the position of the elevator car in the vertical direction can be increased. Alternatively or additionally, a measurement accuracy with which the position of the elevator car can be ascertained can be increased with an increasing number of sensors if these sensors are arranged more closely spaced from one another.
  • the position-measuring device is arranged on a front side of the elevator car opposite the storey-side shaft wall.
  • the position measuring device is considered advantageous to arrange the position measuring device on the front side of the elevator car in a gap between the elevator car and the opposite storey-side shaft wall. Due to its simple structure, the position measuring device can be formed as a relatively flat component, which finds in the usually only a few inches or even only several millimeters wide gap between the elevator car and shaft wall space. If the position-measuring device is arranged on the front side of the elevator car, its sensors can simply be aligned towards the storey-side shaft wall and thus toward the floor level arranged there.
  • the position measuring device can also be integrated in the cabin floor of the elevator car and thus take up very little installation space.
  • the position-measuring device can be arranged laterally next to an opening of the elevator car to be opened by a car door.
  • the position-measuring device may preferably be mounted in an area at the front of the elevator car that is adjacent to the opening that can be opened by the car door. Since the position measuring device preferably protrudes upward above the level of the cabin floor, the position measuring device should not be provided directly in the region of this opening, since otherwise it could act as a tripping hazard. In the area next to the opening, however, the elevator car front side generally leaves enough space to accommodate the position measuring device to install there.
  • the position measuring device may be arranged adjacent to a light curtain device of the elevator car.
  • the light curtain device is provided in many elevator cars to form a light curtain of a plurality of adjacent light beams extending over the opening of the elevator car, thereby being able to recognize when a passenger getting in or out moves through the car door opening.
  • a bar with a plurality of light emitters is usually attached to one side of the car door opening and a further strip with light detectors on an opposite side of the car door opening.
  • the position measuring device can for example be attached to one of these strips and / or below one of these strips.
  • Fig. 1 shows an inventive elevator system 1.
  • the elevator system 1 comprises a hoistway 3, in which an elevator car 5 can be moved vertically.
  • the elevator car 5 encloses an interior 6 and is bounded at its lower end by a cabin floor 19.
  • An access to the interior 6 in the form of an opening 35 of the elevator car 5 can be opened and closed by a car door 8.
  • the elevator shaft 3 is adjacent to a storey-side shaft wall 9 at several floors 11 (for the sake of simplicity, only one floor 11 is shown).
  • a landing door 13 is provided, which is integrated into the storey-side shaft wall 9 and through which an access 15 can be released into the elevator car 5, when the elevator car 5 stops at the respective floor 11.
  • Each floor 11 is bounded below by a floor floor 12. Where the floor floor 12 extends horizontally to the elevator shaft 3 and limits the access 15 downwards, it forms a floor stage 17. Passengers who enter through the access 15 with open shaft door 13 in the interior 6 of the elevator car 5 or leave want to cross this floor level 17.
  • a position measuring device 7 is attached at the elevator car 5.
  • the position measuring device 7 is fixed to the elevator car 5 near the cabin floor 19 and on a front side 21 of the elevator car 5 facing the storey-side shaft wall 9, and is thus moved together with the elevator shaft 3.
  • the position measuring device 7 on a plurality of sensors 23.
  • the sensors 23 are mounted vertically one above the other. Sensor surfaces of the sensors extend in the vertical direction and are directed towards the storey-side shaft wall 9.
  • the position measuring device 7 is configured in this way and on the elevator car 5 arranged that some of its sensors 23 are arranged below an upwardly facing surface 31 of the cabin floor 19 and other of the sensors 23 are arranged above this surface 31.
  • the sensors 23 are sensors which measure physical parameters in their environment which differ significantly, depending on whether a sensor 23 is located above or below an upwardly directed surface 43 of the next adjacent floor stage 17.
  • the sensors 23 may be brightness sensors, color sensors, reflection sensors or distance sensors.
  • a brightness sensor will normally detect differences in brightness, depending on whether the brightness sensor is arranged opposite the shaft door 13 or the access 15 formed when the shaft door 13 is open, or if the brightness sensor is arranged opposite a vertical surface of the shaft-side shaft wall 9 in the area of the landing stage 17 ,
  • a color sensor will generally detect color differences, depending on whether the color sensor is arranged opposite the shaft door 13 or the access 15 or opposite the shaft wall 9 in the area of the landing stage 17.
  • a reflection sensor will detect different reflections, depending on whether it is positioned above or below a top edge 45 formed by the upwardly facing surface 43 of the landing stage 17.
  • a distance sensor will measure different distances between the respective distance sensor integrated in the position-measuring device 7 and an opposite surface of the shaft door 13 facing the elevator car 5 or an opposite surface of the shaft-side shaft wall 9 in the area of the landing stage 17, depending on the height the distance sensor is currently located. The measured distances vary accordingly, depending on whether the distance sensor is above or below the upper edge 45 of the floor level 17.
  • a controller 25 may be further provided.
  • the controller 25 may receive and process sensor signals from the various sensors 23.
  • an interface 27 can be provided in the position-measuring device 7, by means of which sensor signals can be output from the various sensors 23 from the position-measuring device 7. Via the interface 23, the sensor signals can be transmitted, for example, to a remote evaluation device 29, where they can then be processed and evaluated.
  • Fig. 2 shows a front view of a position measuring device 7.
  • the position measuring device 7 has in the example shown seven sensors 23-1, 23-2, 23-3, ..., 23-7.
  • the sensors 23 are arranged one above the other along a vertical line and slightly spaced from each other.
  • a vertical distance between adjacent sensors 23 may be in the range of a few millimeters, ie, for example, between 1 mm and 20 mm, preferably between 2 mm and 5 mm.
  • the three lower sensors 23-5, 23-6 and 23-7 are vertically below a plane formed by the upwardly facing surface 43 of the landing stage 17.
  • the four upper sensors 23-1, 23-2, 23-3 and 23-4 are above this level.
  • Fig. 3 It can be seen how the sensor signals S of the sensors 23 numbered "1" to "7" behave in the example shown.
  • the three lower sensors 5, 6, 7 generate only a relatively weak sensor signal S, whereas the four upper sensors 1 to 4 generate significantly stronger sensor signals S.
  • the sensors 23 are brightness sensors, this can be understood to mean that the four upper sensors 1 through 4 receive significantly more light through the open shaft door 13 than the three lower sensors 5 through 7, which are from the landing stage 17 are covered and shaded.
  • the stronger sensor signals S of the upper sensors 1 to 4 can be referred to here as first sensor signals S1, the weaker sensor signals of the lower ones Sensors 5 to 7 as second sensor signals S2.
  • first sensor signals S1 differ slightly from each other, just as the second sensor signals S2 differ slightly from one another.
  • a difference between the first sensor signals S1 and the second sensor signals S2 is significantly greater than the differences between different first sensor signals S1 and different sensor signals S2.
  • a progression of the sensor signals S via the plurality of sensors 23 thus represents a type of step function, in which an upper stage is indicated by the first sensor signals S1 and a lower stage by the second sensor signals S2.
  • the sensor signals S determined by the various sensors 23 are evaluated, for example in the controller 25 or after being transmitted to the evaluation device 29.
  • the stronger first sensor signals S1 are determined by sensors 23 as originating from a first group 39 and the weaker second sensor signals S2 are determined as originating from a second group 41 of sensors 23.
  • the first sensor signals S1 differ from the second sensor signals S2 at least by a minimum signal distance Sd, which is significantly greater than typically occurring variations in sensor signals S within one and the same group 39, 41 of sensors 23.
  • the first sensor signals S1 are above one Limit signal Sg and the second sensor signals S2 are below the threshold signal Sg.
  • a limit position 47 can be determined at which the first group 39 of sensors 23 adjoins the second group 41 of sensors 23.
  • This limit position 47 represents approximately that plane at which the upwardly directed surface 43 of the landing stage 17 runs.
  • An accuracy with which the limit position 47 can be determined depends in particular on the vertical distances between adjacent sensors 23 of the position-measuring device 7 and is typically in the range of a few millimeters, preferably below 10 mm or more preferably below 5 mm.
  • a level of the upward surface 43 of the floor level 17 can thus be determined.
  • the position at which the position measuring device 7 is arranged on the elevator car 5 relative to the upwardly facing surface 31 of the cabin floor 19 it is thus possible to deduce the level difference N between these two surfaces 43, 31 and, if necessary, to carry out a level adjustment.
  • an input signal of a separate sensor can cause triggering.
  • an elevator control can transmit as trigger information according to which a movement of the shaft door 13 or the car door 8 has been started or ended.
  • additional sensors may be provided, for example, in the position measuring device 7 itself or connected to this position measuring device 7, these further sensors may be configured for example as acceleration sensors, air pressure sensors or the like and can detect, for example, when the elevator car 5 is stopped and then a Trigger trigger signal.
  • FIG. 4 to 6 Front views are shown on an elevator car 5 of an elevator system according to the invention.
  • a position measuring device 7 is arranged in each case in the region of the cabin floor 19.
  • the position measuring device 7 is fixed to the elevator car 5 in such a way that a part of the position measuring device 7 with the sensors 23 provided therein (not explicitly shown in these figures) protrudes upward above the upwardly directed surface 31 of the cabin floor 19 and another part of the position measuring device 7 with the sensors 23 provided there protrudes downwards below this upwardly directed surface 31 of the cabin floor 19.
  • the position measuring device 7 can be adjacent to a light curtain device 49 with a bar 51 of light emitters and a bar 53 of Be arranged light detectors.
  • the position measuring device 7 can be arranged on an edge of a cabin floor level between the light curtain device 49 and the cabin floor 19.
  • the position measuring device 7 can be fixedly mounted on a side edge of the elevator car 5.
  • a position measurement and, if appropriate, a level adjustment with respect to the elevator car 5 can be carried out in a simple manner on each floor 11 by means of the position measuring device 7. Since the position measuring device 7 is able to recognize the floor level 17 and to determine its own position relative to this floor level 17, only little hardware on the elevator car 5 is necessary for this purpose. The approach presented is thus easy to use for modernizing existing elevator systems or retrofitting elevator systems from other manufacturers. The position measuring device can be easily and quickly attached to the elevator car.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
EP18168509.0A 2018-04-20 2018-04-20 Installation d'ascenseur dotée d'un dispositif de mesure de position ainsi que procédé de détermination d'une position d'une cabine d'ascenseur dans une cage d'ascenseur Withdrawn EP3556700A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18168509.0A EP3556700A1 (fr) 2018-04-20 2018-04-20 Installation d'ascenseur dotée d'un dispositif de mesure de position ainsi que procédé de détermination d'une position d'une cabine d'ascenseur dans une cage d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18168509.0A EP3556700A1 (fr) 2018-04-20 2018-04-20 Installation d'ascenseur dotée d'un dispositif de mesure de position ainsi que procédé de détermination d'une position d'une cabine d'ascenseur dans une cage d'ascenseur

Publications (1)

Publication Number Publication Date
EP3556700A1 true EP3556700A1 (fr) 2019-10-23

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EP18168509.0A Withdrawn EP3556700A1 (fr) 2018-04-20 2018-04-20 Installation d'ascenseur dotée d'un dispositif de mesure de position ainsi que procédé de détermination d'une position d'une cabine d'ascenseur dans une cage d'ascenseur

Country Status (1)

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EP (1) EP3556700A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112623893A (zh) * 2020-12-03 2021-04-09 深圳市普渡科技有限公司 一种电梯楼层确定方法、装置、计算机设备及存储介质
DE102022106990A1 (de) 2022-03-24 2023-09-28 Tk Elevator Innovation And Operations Gmbh Aufzugvorrichtung, Aufzugsystem und Verfahren zum Befördern von Lasten

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0751088A1 (fr) 1995-06-30 1997-01-02 Inventio Ag Dispositif pour générer de l'information de cage
US5659159A (en) * 1994-12-16 1997-08-19 Otis Elevator Company Elevator level control system using elevator/landing gap as a reflection duct
EP0985622A2 (fr) * 1998-09-07 2000-03-15 Kabushiki Kaisha Toshiba Dispositif d'approche palière pour ascenseur
US6305503B1 (en) * 1998-04-28 2001-10-23 Kabushiki Kaisha Toshiba Load detector for elevator cage
JP2001294376A (ja) * 2000-04-07 2001-10-23 Hitachi Building Systems Co Ltd エレベータの位置検出装置
WO2005062734A2 (fr) * 2003-11-26 2005-07-14 Otis Elevator Company Dispositif et procede relatifs a un systeme de reference de positionnement a auto-alignement
JP2007320717A (ja) * 2006-06-01 2007-12-13 Mitsubishi Electric Corp エレベータのかご位置検出装置
WO2008114529A1 (fr) * 2007-03-20 2008-09-25 Hitachi, Ltd. Système de sécurité pour un ascenseur
JP2011063354A (ja) * 2009-09-16 2011-03-31 Hitachi Ltd エレベータシステム
WO2011076533A1 (fr) * 2009-12-21 2011-06-30 Inventio Ag Dispositif de détection de position d'étage
US9567188B2 (en) * 2014-02-06 2017-02-14 Thyssenkrupp Elevator Corporation Absolute position door zone device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659159A (en) * 1994-12-16 1997-08-19 Otis Elevator Company Elevator level control system using elevator/landing gap as a reflection duct
EP0751088A1 (fr) 1995-06-30 1997-01-02 Inventio Ag Dispositif pour générer de l'information de cage
US6305503B1 (en) * 1998-04-28 2001-10-23 Kabushiki Kaisha Toshiba Load detector for elevator cage
EP0985622A2 (fr) * 1998-09-07 2000-03-15 Kabushiki Kaisha Toshiba Dispositif d'approche palière pour ascenseur
JP2001294376A (ja) * 2000-04-07 2001-10-23 Hitachi Building Systems Co Ltd エレベータの位置検出装置
WO2005062734A2 (fr) * 2003-11-26 2005-07-14 Otis Elevator Company Dispositif et procede relatifs a un systeme de reference de positionnement a auto-alignement
JP2007320717A (ja) * 2006-06-01 2007-12-13 Mitsubishi Electric Corp エレベータのかご位置検出装置
WO2008114529A1 (fr) * 2007-03-20 2008-09-25 Hitachi, Ltd. Système de sécurité pour un ascenseur
JP2011063354A (ja) * 2009-09-16 2011-03-31 Hitachi Ltd エレベータシステム
WO2011076533A1 (fr) * 2009-12-21 2011-06-30 Inventio Ag Dispositif de détection de position d'étage
US9567188B2 (en) * 2014-02-06 2017-02-14 Thyssenkrupp Elevator Corporation Absolute position door zone device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112623893A (zh) * 2020-12-03 2021-04-09 深圳市普渡科技有限公司 一种电梯楼层确定方法、装置、计算机设备及存储介质
DE102022106990A1 (de) 2022-03-24 2023-09-28 Tk Elevator Innovation And Operations Gmbh Aufzugvorrichtung, Aufzugsystem und Verfahren zum Befördern von Lasten

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