EP3033289B1 - Système de surveillance d'une installation d'ascenseur - Google Patents

Système de surveillance d'une installation d'ascenseur Download PDF

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Publication number
EP3033289B1
EP3033289B1 EP14746996.9A EP14746996A EP3033289B1 EP 3033289 B1 EP3033289 B1 EP 3033289B1 EP 14746996 A EP14746996 A EP 14746996A EP 3033289 B1 EP3033289 B1 EP 3033289B1
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EP
European Patent Office
Prior art keywords
elevator
door
sensor
monitoring system
parameter
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EP14746996.9A
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German (de)
English (en)
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EP3033289A1 (fr
Inventor
Astrid Sonnenmoser
Martin KUSSEROW
Reto Tschuppert
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Inventio AG
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Inventio AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—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
    • 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

Definitions

  • the invention relates to a monitoring system for an elevator installation and a method for using this monitoring system.
  • the monitoring system is used to collect usage data from an elevator door.
  • Elevator systems include an elevator shaft and an elevator car that can be moved in this elevator shaft.
  • the elevator shaft is usually closed by shaft doors arranged on individual floors of the building.
  • the elevator car has a car door which, when arranged on one of the shaft doors, can usually be opened together with this shaft door.
  • This usage data can usually be taken from an elevator control system that acts on the elevator door.
  • This usage data cannot be taken from a large number of elevator controls in existing elevator systems, for example due to a lack of interfaces or outdated designs of the elevator controls.
  • systems are known that include cameras, for example, which systems can detect individual door leaf positions on the basis of contrast differences. The disadvantage is that such systems cause high costs due to their complexity.
  • a monitoring system for an elevator system is off US 2011/0067958 A1 known.
  • the document US2011/0067958 is considered to be the closest prior art and discloses a monitoring system for an elevator installation comprising an elevator door, the monitoring system for generating usage data of the elevator door, e.g. B. the duration of the door movement, with a camera arranged in the elevator system, with at least one physical parameter of the surroundings of the camera being recorded by means of the camera, with the physical parameter being an optical parameter and an evaluation unit designed in such a way that an operating state of the elevator door can be determined, the evaluation unit comprising a storage unit, the duration of the door movement being determined from the camera images and being compared with a reference parameter stored in the storage unit.
  • a monitoring system for an elevator installation that includes an elevator door, with the monitoring system being suitable for generating usage data for the elevator door, with a sensor arranged in the elevator installation, with at least one physical parameter in the area surrounding the sensor being able to be detected by means of the sensor and such trained evaluation unit that an operating state of the elevator door can be determined by means of a time profile of the physical parameter.
  • the monitoring system also includes the evaluation unit and a memory unit, the evaluation unit being designed in such a way that at least one parameter can be determined from the time profile of the parameter and this parameter can be compared with at least one reference parameter that can be stored in the memory unit.
  • the time course of the parameter itself has a large amount of information, such as a standard deviation, a mean value, a maximum deviation from this mean value or the duration of the door leaf movement. At least one of these items of information forms such a parameter when viewed over a defined period of time.
  • a comparison of this parameter with the at least one reference parameter enables a statement to be made as to the state of the monitored elevator door.
  • Such reference parameters can be determined, for example, during learning trips or be specified by standards.
  • the invention is based on the finding that both changes that have taken place and changes that have not taken place, for example the brightness or the magnetic field, in the vicinity of the elevator door can be seen to indicate whether the elevator door is open or closed. Based on this information, which is available over time, individual door leaf movements can be traced and consequently the usage data of the elevator door can be registered and used. On the other hand, a single instantaneous value of the detected parameter would not be sufficient to be able to determine an operating state of the elevator door, because the time profile of the parameter can be subject to strong fluctuations during a single operating state.
  • the physical parameter of the environment is thus given by the existing environmental conditions, that is, this physical parameter is unaffected by the monitoring system. This is advantageous because for this reason the monitoring system does not have any additional means that may possibly influence the environmental conditions and is correspondingly inexpensive.
  • the memory unit can be designed in such a way that usage data specific to the elevator door, preferably a number of opening/closing processes and/or a duration of the opening/closing processes of this elevator door, are accumulated and stored.
  • a memory unit configured in this way preferably fixed to a component of the elevator installation, enables a service technician, for example, to query the usage data on site at the elevator installation and to take appropriate measures. Such a measure is, for example, replacing a component of the elevator door.
  • the evaluation unit is designed in such a way that the operating state of the elevator door is classified by comparing the parameter with the reference parameter. In this way, there is a simple possibility of statistically evaluating the course over time.
  • the senor is arranged in the vicinity of a shaft door or on a shaft door or on one of the shaft doors such that an operating state of the shaft door can be determined using a time profile of the physical parameter generated by the sensor.
  • the sensor can preferably be fixed to a door frame of the shaft door or to a part of the shaft door that changes its position during an opening or closing movement of the shaft door, for example the door leaf of the shaft door.
  • the senor can be fixed on or in an elevator car of the elevator installation.
  • a car door and/or the shaft doors of the elevator system can be monitored in this way. If door leaf movements of any shaft door are processed together with additional information, with the additional information precisely identifying the shaft door on which the elevator car is located at the time the door leaf movement is registered, usage data can be generated for each individual shaft door. This additional information can be taken from the elevator control, for example.
  • the sensor can be fixed on or in the elevator car in order to enable the best possible evaluation of the physical parameter to be detected.
  • a detection of the light intensity by a sensor arranged inside the elevator car leads, for example, to an incorrect evaluation by an interior lighting that is present in the elevator car and can be switched independently of the door movement.
  • a sensor arranged inside the elevator car leads, for example, to an incorrect evaluation by an interior lighting that is present in the elevator car and can be switched independently of the door movement.
  • no such incorrect evaluation of the light intensity caused by the interior lighting of the elevator car is to be expected.
  • a further development of the monitoring system includes a car movement sensor fixed on or in the elevator car, preferably a speed sensor or an acceleration sensor, for detecting a travel movement of the elevator car in an elevator shaft of the elevator system, with the evaluation unit being designed in such a way that the operating state of the elevator door is independent of the course over time of the parameter is considered to be "closed” when the travel movement is taking place.
  • Parameter values that characterize different states of the elevator door in particular "open elevator door” and "closed elevator door" can sometimes be difficult to distinguish from one another.
  • a travel movement of the elevator car is detected, due to safety precautions implemented in the elevator system, it can usually be assumed that the elevator doors are closed.
  • an open position or opening movement detected by the monitoring system monitored elevator door is ignored when the elevator car moves in the elevator shaft.
  • the quality of the usage data can therefore be improved by ignoring a correspondingly obvious incorrect evaluation of the time curve generated by the sensor.
  • the door leaf movements are detected by the monitoring system when the elevator car is arranged on a shaft door.
  • the physical parameter is an optical parameter, preferably light intensity and/or color temperature.
  • the sensor is designed in such a way that this at least one optical parameter can be detected by the sensor.
  • a sensor can, for example, be selected as a sensor of the monitoring system if the elevator car is arranged in an elevator shaft that is completely bricked. According to this, the sensor would be located in the dark almost all the time when the elevator doors were closed.
  • the physical parameter can be an acoustic parameter.
  • the sensor is designed in such a way that this acoustic parameter can be detected by the sensor.
  • a sensor can be selected as a sensor of the monitoring system, for example, if the background noise surrounding the elevator system can be rated as quiet and a door leaf movement can accordingly be clearly heard acoustically. Accordingly, such an acoustic detecting sensor is suitable for houses.
  • the physical parameter is a magnetic parameter
  • the elevator door comprising at least one part that changes its position during an opening or closing movement of the elevator door, preferably a door leaf and/or a carriage, which part is made of magnetic material.
  • a sensor that registers magnetic parameters can be used as an alternative to a light-detecting or noise-detecting sensor, for example in a department store characterized by a high noise level, whose elevator shaft is limited by translucent building material.
  • the physical parameter for each individual monitoring system to be installed can be selected in such a way that this selected parameter allows the most unambiguous association of the individual states of the elevator door or doors to be monitored.
  • FIG 1 shows an elevator installation 2.
  • the elevator installation 2 comprises an elevator shaft 3 and an elevator car 16 which can be moved in the elevator shaft 3.
  • the elevator shaft 3 connects several floors.
  • a shaft door 5.1, 5.2, 5.3 is arranged on each of these floors.
  • the elevator car 16 has a car interior 16.5, side walls 16.1, a car roof 16.2, a car floor 16.3 and a car door 6.
  • the side walls 16.1, the cabin roof 16.2, the cabin floor 16.3 and the cabin door 6 delimit the cabin interior 16.5.
  • the elevator installation 2 includes a monitoring system 4.
  • a first car sensor 4.2 of this monitoring system 4 is fixed on or in the elevator car 16.
  • a second shaft door sensor 4.1 of the monitoring system 4 is arranged on the shaft door 5.1.
  • the at least one sensor 4.1, 4.2 detects a physical parameter of its surroundings, such as a magnetic, an optical or an acoustic parameter.
  • the side walls 16.1, the car roof 16.2 and the car floor 16.3 are designed opaque in such a way that when the car door 6 is closed, no light from the lighting usually arranged in the car interior 16.5 penetrates into the elevator shaft 3.
  • Cabin sensor 4.2 can detect both a light intensity currently acting on cabin sensor 4.2 and a color temperature currently acting on cabin sensor 4.2. Fixing the cabin sensor 4.2 outside of the cabin interior 16.5 on one of the side walls 16.1 accordingly causes light changes in the cabin interior 16.5 when the cabin door 6 is closed to largely not affect the cabin sensor 4.2.
  • the car sensor 4.2 can essentially only detect an increased light intensity if the car door 6 and/or the one on the car door 6 arranged shaft door 5.3 are not closed. Based on the light intensity of its surroundings detected by the cabin sensor 4.2, the opened one is such Shaft and/or cabin door 5.3, 6 lockable.
  • the car sensor 4.2 can also be used to capture the usage data of at least one of the shaft doors 5.1, 5.2, 5.3. This is the case because during normal operation of the elevator installation 2 it can be assumed that one of the shaft doors 5.1, 5.2, 5.3 is coupled to the car door 6 when the car door 6 is opened/closed. Accordingly, the car door 6 is opened or closed at the same time as the corresponding shaft door 5.1, 5.2, 5.3. It is therefore obvious that in accordance with figure 1 existing arrangement of the elevator car 16 when the car door 6 is opened, the shaft door 5.3 arranged at the top of the elevator shaft 3 is also opened.
  • Information characterizing this shaft door 5.3 for example a floor identifier, can be transmitted to the monitoring system 4, for example by means of an elevator control of the elevator system, so that door leaf movements can be assigned to the actuated shaft door 5.3 and accordingly usage data relating to the actuated shaft door 5.3 can be processed or stored if required.
  • the shaft door sensor 4.1 is fixed with respect to the shaft door 5.1, for example on a door frame of the shaft door 5.1, with this shaft door sensor 4.1 detecting the acoustics of its surroundings.
  • a noise pattern corresponding to the closing or the opening can be heard, that is to say it can be detected. Accordingly, the closings/openings of the shaft door 5.1 can be counted and usage data for this shaft door 5.1 can thus be recorded.
  • the shaft door sensor 4.1 can be a magnetic sensor that detects the magnetic conditions in its surroundings.
  • a part of the shaft door 5.1 that changes its position when the shaft door 5.1 is closed/opened is made of magnetic material in order to enable the shaft door sensor 4.1 designed as a magnetic sensor to detect the opening or closing or the closed or open state of the shaft door 5.1 enable.
  • the part that changes position when the shaft door 5.1 is closed/opened can be, for example, a door leaf, a carriage or a section of a door drive belt of the shaft door 5.1.
  • the monitoring system 4 can also have sensors detecting different physical parameters for monitoring the same elevator door 5.1, 5.2, 5.3, 6, in order to enable, for example, an improved ability to evaluate the temporal profiles of the physical parameters generated by the different sensors.
  • Both a cabin sensor 4.2 and a landing door sensor 4.1 of such a monitoring system 4 can be, for example, a light-detecting or a noise-detecting or a magnetic-detecting sensor.
  • the selection of the corresponding sensor itself depends, among other things, on how reliably the state to be detected acts on the sensor 4.1, 4.2 of the monitoring system 4 by means of the parameter to be detected in the surroundings of the elevator door 5.1, 5.2, 5.3, 6.
  • the monitoring system 4 includes an evaluation unit 4.5.
  • a time profile of the physical parameter detected by the at least one sensor 4.1, 4.2 can be assigned to a state of the monitored elevator door 5.1, 5.2, 5.3, 6.
  • the usage data that can be assigned to this recognized state can, for example, be transmitted to a service technician in order to enable maintenance of the relevant elevator door 5.1, 5.2, 5.3, 6.
  • This evaluation unit 4.5 can have a memory unit 4.6.
  • At least one reference parameter can be stored in the memory unit 4.6, which can be compared within the evaluation unit 4.5 with a parameter that can be taken from the time profile of the physical parameter.
  • the at least one reference parameter can be used to classify the individual operating states of the elevator door 5.1, 5.2, 5.3, 6.
  • the elevator door usage data obtained by evaluating the time profile of the physical parameters can be stored in the memory unit 4.6, can be read out on site, or can be transmitted to a service technician or a service center at a suitable point in time.
  • FIG 2 shows a diagram in which the time course of a physical parameter detected by the sensor of the monitoring system, for example the color temperature CT, is shown.
  • this color temperature can be determined quantitatively.
  • operating states of the monitored elevator door can be identified by means of an evaluation: open position O of the monitored elevator door, closing SL of the monitored elevator door, closed position C of the monitored elevator door, opening OE of the monitored elevator door.
  • a parameter that is valid within a time-limited period of time TR for example a mean value
  • This parameter is compared with a reference parameter, for example a reference value CT * , which enables the stated operating states to be classified.
  • a single instantaneous value of the physical parameter is not sufficient to be able to determine an operating state of the elevator door, because the course of the detected physical parameter is subject to strong fluctuations.
  • the actual duration of a door leaf movement can be compared with a reference duration of this door leaf movement. If the opening OE of the elevator door takes, for example, significantly more time than would normally be the case according to the reference duration, a malfunction of the elevator door, in particular of the door drive of the elevator door, may be inferred.
  • the according figure 2 The mean value of the color temperature CT recorded in the period TR is greater than the reference value CT * , as a result of which the open position O can be determined by the evaluation unit in the period TR.
  • This operating state can be determined independently of the individual instantaneous values, which can be smaller than the reference value CT ⁇ within the period TR under consideration.
  • Such instantaneous values can be caused by disturbances within a disturbance period P. Objects transported within the elevator car, which influence the sensor, can cause such a disturbance, for example.
  • the reference value CT * can be adjusted.
  • other reference parameters such as the standard deviation, can be included in the evaluation within the period TR under consideration in order to be able to reliably determine the operating status. It can be postulated that in the case of an exaggerated standard deviation, the determinable according to the mean value Operating status does not affect the usage data of the elevator door.
  • the monitoring system 4 can have at least one sensor for monitoring the same elevator door 5.1, 5.2, 5.3, 6, with the sensor detecting at least one physical parameter.
  • various time curves of the physical parameters generated by the at least one sensor can be evaluated together in order to identify, for example, a cause of the occurrence of an above-mentioned fault.
  • figure 3 12 shows an interior of an elevator car 16 from the perspective of an elevator passenger.
  • the elevator car 16 includes a car door 6.
  • the car door 6 has at least one door leaf 6.1, 6.2 for opening/closing the car door 6 and a door frame 7.
  • the car door 6 can be opened or closed by means of a door leaf movement B of the door leaf 6.1, 6.2.
  • a monitoring system 4 comprises a sensor 4.1 and an evaluation unit 4.6, the sensor 4.1 being able to be arranged in the vicinity of the door frame 7 in order to record the usage data for the car door 6 .
  • the monitoring system 4 additionally includes a speed sensor 4.8 arranged on or in the elevator car 16 for detecting a travel movement of the elevator car 16 taking place in the elevator shaft.
  • the listed elements 4.1, 4.8 of the monitoring system 4 are preferably arranged in such a way that they are not visible to the elevator passenger.
  • the speed sensor 4.8 can be used to detect whether the elevator car 16 is moving within the elevator shaft.
  • the cabin door 6 is regarded as closed, regardless of whether an evaluation of the time profile of the physical parameter generated by the cabin sensor 4.2 suggests an expected closed position of the cabin door 6 or not. Accordingly, an open position of the car door 6 that was obviously incorrectly detected can be ignored and the accuracy, that is to say the quality of the usage data, can be increased. Under certain circumstances, it is necessary not to evaluate slight vertical movements of the elevator car 16, which occur, for example, when loading/unloading the elevator car 16 arranged on a shaft door, as such a travel movement.

Claims (9)

  1. Système de surveillance (4) d'une installation d'ascenseur (2) comprenant une porte d'ascenseur (5.1, 5.2, 5.3, 6), dans lequel le système de surveillance (4) est adapté pour créer des données d'utilisation de la porte d'ascenseur (5.1, 5.2, 5.3, 6), comportant
    - un capteur (8) disposé dans l'installation d'ascenseur (2), au moins un paramètre physique de l'environnement du capteur (8) étant détecté au moyen du capteur (8) et
    - une unité d'évaluation (4.5) configurée de telle manière qu'un état de fonctionnement de la porte d'ascenseur (5.1, 5.2, 5.3, 6) est constaté au moyen d'un profil temporel du paramètre physique,
    dans lequel le paramètre physique est un paramètre optique, de préférence est
    l'intensité lumineuse et/ou la température de couleur, l'unité d'évaluation (4.5) comprenant une unité de stockage (4.6),
    l'unité d'évaluation (4.5) étant configurée de telle manière qu'au moins une caractéristique est déterminée à partir du profil temporel du paramètre et ladite caractéristique est comparée à au moins une caractéristique de référence stockée dans l'unité de stockage (4.6).
  2. Système de surveillance (4) selon la revendication 1, dans lequel l'unité de stockage (4.6) est configurée de telle manière que des données d'utilisation spécifiques à la porte d'ascenseur (5.1, 5.2, 5.3, 6), de préférence un nombre et/ou une durée des processus d'ouverture/de fermeture de ladite porte d'ascenseur (5.1, 5.2, 5.3, 6), sont accumulées et stockées.
  3. Système de surveillance (4) selon l'une des revendications 1 ou 2, dans lequel l'unité d'évaluation (4.5) est configurée de telle manière que l'état de fonctionnement de la porte d'ascenseur (5.1, 5.2, 5.3, 6) est classifié au moyen de la comparaison de la caractéristique avec la caractéristique de référence.
  4. Système de surveillance (4) selon l'une des revendications précédentes, dans lequel le capteur (8) est disposé dans un environnement ou sur une porte de cage (5.1, 5.2, 5.3) ou l'une des portes de cage (5.1, 5.2, 5.3) de telle manière qu'un état de fonctionnement de la porte de cage (5.1, 5.2, 5.3) est constaté au moyen d'un profil temporel du paramètre physique généré par le capteur (8).
  5. Système de surveillance (4) selon l'une des revendications 1 à 3, dans lequel le capteur (8) est fixé sur ou dans une cabine d'ascenseur (16) de l'installation d'ascenseur (2).
  6. Système de surveillance (4) selon la revendication 5, comportant un capteur de mouvement de cabine fixé sur ou dans la cabine d'ascenseur (16), de préférence un capteur de vitesse ou un capteur d'accélération (4.8), permettant de détecter un mouvement de déplacement de la cabine d'ascenseur (16) dans une cage d'ascenseur de l'installation d'ascenseur (2), l'unité d'évaluation (4.5) étant configurée de telle manière que l'état de fonctionnement de la porte d'ascenseur (5.1, 5.2, 5.3, 6) est considéré comme « fermé » indépendamment du profil temporel du paramètre lorsque le mouvement de déplacement a lieu.
  7. Système de surveillance (4) selon l'une des revendications précédentes, dans lequel la porte d'ascenseur (5.1, 5.2, 5.3, 6) comprend au moins une partie changeant de position lors d'un mouvement d'ouverture ou de fermeture de la porte d'ascenseur (5.1, 5.2, 5.3, 6), de préférence un battant de porte (6.1, 6.2) et/ou un chariot, ladite partie est formée d'un matériau magnétique, le paramètre physique étant un paramètre magnétique.
  8. Système de surveillance (4) selon l'une des revendications 1 à 6, dans lequel le paramètre physique est un paramètre acoustique.
  9. Procédé de fonctionnement d'un système de surveillance (4) selon l'une des revendications 1 à 8, comprenant les étapes de procédé suivantes :
    détection d'un paramètre physique de l'environnement d'un capteur (8) disposé dans l'installation d'ascenseur (2),
    constatation d'un état de fonctionnement de la porte d'ascenseur (5.1, 5.2, 5.3, 6) au moyen d'un profil temporel du paramètre physique, et
    détermination d'au moins une caractéristique à partir du profil temporel du paramètre et
    comparaison de ladite caractéristique avec au moins une caractéristique de référence stockée dans l'unité de stockage (4.6).
EP14746996.9A 2013-08-13 2014-07-29 Système de surveillance d'une installation d'ascenseur Active EP3033289B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14746996.9A EP3033289B1 (fr) 2013-08-13 2014-07-29 Système de surveillance d'une installation d'ascenseur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13180168 2013-08-13
EP14746996.9A EP3033289B1 (fr) 2013-08-13 2014-07-29 Système de surveillance d'une installation d'ascenseur
PCT/EP2014/066274 WO2015022185A1 (fr) 2013-08-13 2014-07-29 Système de surveillance d'une installation d'ascenseur

Publications (2)

Publication Number Publication Date
EP3033289A1 EP3033289A1 (fr) 2016-06-22
EP3033289B1 true EP3033289B1 (fr) 2022-06-22

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US (1) US10196236B2 (fr)
EP (1) EP3033289B1 (fr)
CN (1) CN105452139B (fr)
BR (1) BR112016002377B1 (fr)
WO (1) WO2015022185A1 (fr)

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BR112016002377B1 (pt) 2022-10-18
EP3033289A1 (fr) 2016-06-22
WO2015022185A1 (fr) 2015-02-19
CN105452139A (zh) 2016-03-30
CN105452139B (zh) 2017-11-10
US20160185569A1 (en) 2016-06-30
BR112016002377A2 (pt) 2017-08-01
US10196236B2 (en) 2019-02-05

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