WO2003033388A1 - Dispositif de diagnostic et procede de diagnostic pour installations d'ascenseur - Google Patents

Dispositif de diagnostic et procede de diagnostic pour installations d'ascenseur Download PDF

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Publication number
WO2003033388A1
WO2003033388A1 PCT/DE2002/003831 DE0203831W WO03033388A1 WO 2003033388 A1 WO2003033388 A1 WO 2003033388A1 DE 0203831 W DE0203831 W DE 0203831W WO 03033388 A1 WO03033388 A1 WO 03033388A1
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WO
WIPO (PCT)
Prior art keywords
acceleration
evaluation unit
parameters
car
data
Prior art date
Application number
PCT/DE2002/003831
Other languages
German (de)
English (en)
Inventor
Peter Pini
Falko Kuhnke
Original Assignee
Henning Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henning Gmbh filed Critical Henning Gmbh
Publication of WO2003033388A1 publication Critical patent/WO2003033388A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0037—Performance analysers

Definitions

  • the invention relates to a diagnostic device for an elevator system, which has a car, drive elements for the car, and an elevator control, with an acceleration sensor that can be installed in the car for measuring the acceleration of the car, an evaluation unit, and a data transmission device for the direct transmission of the measured acceleration data the evaluation unit.
  • the invention further relates to a method for diagnosing elevator systems with at least one accelerometer with the steps:
  • Elevator systems especially goods and passenger lifts, must be checked regularly.
  • An elevator system is usually constructed in such a way that a car is guided laterally on vertical rails and is moved directly upwards or downwards with one or more support cables or with hydraulic cylinders. Hydraulic cylinders or a driven pulley provided on which the suspension cables are deflected to drive them.
  • Hydraulic cylinders or a driven pulley provided on which the suspension cables are deflected to drive them.
  • a counterweight or the cable drum is usually located at the opposite end of the supporting cables.
  • the operating parameters and the driving quality are determined.
  • elevator systems generally have safety devices to brake the car in the event of a break in the supporting cables by means of the braking action on the vertical rails. These safety devices must also be checked regularly.
  • the car is usually loaded with a test load for checking and the drive and braking forces are determined from a downward movement of the car.
  • the driving ability is checked by stopping the loaded car several times or, if the rope is blocked, turned until it slips.
  • Loading the car is relatively complex and can damage the car.
  • DE 42 1 7 587 C2 therefore discloses a method with which the parameters to be checked are determined on an unloaded car and the diagnostic results are converted to rated load operation.
  • an accelerometer that acts in the vertical Z direction, an acceleration torque value curve is recorded and with a modeled acceleration curve at nominal load for the elevator system to be checked compared.
  • the acceleration instantaneous value curve in the vertical Z direction is described in the German utility model G 90 1 5 495.9.
  • a measurement sensor is detachably attached to the car as a single-axis acceleration sensor.
  • the one-axis accelerometer is directly coupled to a buffer. After reaching a certain acceleration value, the buffer is activated with a trigger module and the measured acceleration values are recorded in the vertical Z direction. After the measurement process, the accelerometer is removed from the car and the buffer is connected to an evaluation unit and read out. The measured acceleration values are then evaluated further.
  • the object of the invention was therefore to provide an improved diagnostic device and an improved method for diagnosing elevator systems, with which a diagnosis of the elevator systems can be carried out quickly and reliably.
  • the object is achieved by the generic method in that the normalized parameters are compared with stored target parameters for the elevator system in order to detect a change in state, the target parameters being measured and recorded in the correct state of the elevator system.
  • the diagnosis is carried out by comparing standardized parameters, which are determined from the measured acceleration data in the X, Y and Z directions, with target parameters which represent the correct state of the elevator system. If the measured standardized parameters deviate from the target parameters by a defined tolerance measure, a defect or an incorrect adjustment of the elevator system can be concluded immediately. Then a message is preferably automatically forwarded to a remote control center.
  • a three-axis accelerometer which also detects accelerations via the conventional recording of the Z direction in the horizontal X and Y directions, is preferably permanently installed in the car. This means that the elevator system is checked continuously, regularly or at intervals. A diagnosis with a mobile diagnostic device can also be carried out at any time without any further setup time.
  • the measurement data are transmitted directly to an evaluation unit, preferably located outside the car, so that the results of the diagnosis are immediately available.
  • This method can be carried out for automatic permanent diagnosis during operation and advantageously also remotely. This is due to the permanently installed three-axis accelerometer and the direct transmission and evaluation of the measured
  • the elevator system has an accelerometer permanently installed in the car, an evaluation unit and one
  • Data transmission device for the direct transmission of the measured acceleration data to the evaluation unit.
  • the evaluation unit is in each case trained to compare the normalized parameters with stored target parameters.
  • a three-axis accelerometer is preferably used to measure the acceleration in three mutually independent directions in order to determine the acceleration of the car in the X, Y and Z directions.
  • the measured acceleration values are preferably pulse width modulated and digitally transmitted to the evaluation unit.
  • the data transmission device is designed for wireless data transmission.
  • the accelerometer is connected to a transmitter installed in the car.
  • the evaluation unit installed outside the car has a corresponding receiver.
  • a return channel can be provided in a known manner for the transmission of control signals from the evaluation unit to the accelerometer.
  • at least one start signal channel should be defined for the transmission of a start signal from the evaluation unit to the acceleration sensor and for starting the acceleration measurement and the transmission of the measured acceleration data in the data transmission device.
  • the parameters are determined from the acceleration parameters at least from the acceleration data in the vertical Z direction, but preferably also from the acceleration data in the horizontal X and Y directions.
  • Impact and vibration parameters can be derived from the acceleration data.
  • Speed parameters can also be calculated from the time integral of the acceleration parameters.
  • path parameters can be determined from the time integral of the speed parameters.
  • the setpoint parameters are preferably determined by repeatedly checking the elevator installation and correlating the normalized parameters determined certainly. In this way, one-off measurement errors can be compensated and characteristic target parameters of the elevator system can be calculated taking into account the long service life.
  • a frequency analysis of the measured acceleration data is preferably carried out to determine vibrations of components of the elevator installation.
  • the uniformity of movement of the moving car is determined with the help of a shock and vibration parameter.
  • the measured acceleration data are differentiated and low-pass filtered.
  • the parameters are determined from the measured acceleration data not in the evaluation unit but in a computing unit which is integrated in a measuring unit with the acceleration sensor and is located directly on the car.
  • the parameters are determined in the computing unit and transmitted to the evaluation unit.
  • This has the advantage that real-time data transmission is no longer required. Rather, the measured acceleration data are processed directly after the measurement and immediately transmitted to the evaluation unit as a reduced data set.
  • an additional acceleration sensor is permanently installed in the car in order to determine the larger catching forces which are exerted on the car by a safety device. In addition to the acceleration values, the catch values for diagnosing the functionality of the safety device are then also transmitted to the evaluation unit.
  • the evaluation unit is independent of the elevator control of the elevator installation, so that the evaluation unit can be used independently by the elevator manufacturer.
  • This evaluation unit is preferably connected to a higher-level remote central computer with a start signal and data channel. A diagnosis can then be made with a Start signal are started, which is sent from the remote control central computer to the evaluation unit. The diagnostic process is then controlled automatically by the evaluation unit. The measured data can also be transmitted directly from the evaluation unit via the data channel to the remote central computer for evaluation.
  • Fig. 1 block diagram of a three-axis accelerometer, which is coupled via cable to an evaluation computer unit arranged outside the car;
  • Fig. 2 three-axis accelerometer with integrated
  • Microcontroller which is coupled wirelessly or via cable to an evaluation unit
  • Fig. 3 Diagnostic device with three-axis accelerometer and additional acceleration sensor for catch diagnosis and integrated signal processing unit, which is coupled wirelessly or via cable to an evaluation unit;
  • FIG. 4 block diagram of a mobile diagnostic device with immediate
  • FIG. 6 block diagram of a permanently installed diagnostic device with a
  • Fig. 7 block diagram of the remote control center with measuring and
  • FIG. 1 shows a block diagram of a system for diagnosing elevator systems with a three-axis accelerometer 1, which is placed in a car of the elevator system.
  • the accelerometer measures the acceleration values of the car in the vertical Z direction and in the two horizontal X and Y directions orthogonal to it.
  • An analog / digital converter and a data transmission interface 2a are coupled to the acceleration sensor 1 in order to transmit the acceleration data via a wire line 3 to an evaluation unit 4 arranged outside the car.
  • the evaluation unit 4 also has a data transmission interface 2b, which corresponds to the data transmission interface 2a of the accelerometer 1.
  • the data transmission can take place for example according to the RS232 or Centronics standard.
  • the car is moved in a defined manner and the acceleration is measured in the X, Y and Z directions.
  • the measured acceleration data are transmitted directly to the evaluation unit 4 and evaluated there.
  • standardized parameters are determined from the acceleration values and compared with stored target parameters of the elevator system. State changes can then be recognized from this.
  • the evaluation results and measurement curves are shown on a display unit 5.
  • FIG. 2 shows a further improved embodiment of the arrangement for diagnosing elevator systems.
  • Accelerometer 1 is permanently installed in the car and connected to a microcontroller ⁇ C.
  • the microcontroller ⁇ C is used to process the measured acceleration values and convert them into digital acceleration data.
  • the measured acceleration values for digitization are preferably pulse-width modulated and transmitted via the data transmission interfaces 2a and 2b as a digital pulse-width modulation signal, e.g. B. via wire 3 to the evaluation unit 4.
  • a wireless pulse-width modulation signal e.g. B. via wire 3 to the evaluation unit 4.
  • Data transmission device 6 is provided, for example, with a radio data transmitter 7 a and a radio data receiver 7 b.
  • the data transmission device 6 can additionally have a return channel from the evaluation unit 4 to the acceleration sensor 1 in order to transmit at least one start signal from the evaluation unit 4 to the acceleration sensor 1 and to start the acceleration measurement and the transmission of the measured acceleration data.
  • FIG. 3 shows a further improved exemplary embodiment of the arrangement for diagnosing elevator systems.
  • a further acceleration sensor 8 for detecting the higher acceleration values when catching is integrated in the car,.
  • the additional acceleration sensor 8 can thus be used to determine the increased braking forces which are exerted on the car by the safety device.
  • the acceleration sensor 1 and the additional acceleration sensor 8 are connected to an integrated signal processing unit 9, such as. B. coupled a Field Programmable Gate Array (FPGA).
  • the signal processing unit 9 is designed for preprocessing the measured acceleration values and could be programmed so that the measured acceleration values are converted into standardized parameters. In this way, real-time data processing is ensured without the data transmission device 6 having to be real-time capable.
  • FIG. 4 shows a mobile diagnostic device for elevator systems as a block diagram.
  • a measurement is started with the aid of a start signal that is sent from the evaluation unit 4 to the acceleration sensor 1.
  • the acceleration sensor 1 detects the acceleration values in the X, Y and Z directions and sends this data to the Evaluation unit 4 back.
  • the evaluation unit 4 is preferably a portable personal computer.
  • the acceleration data are converted into standardized parameters and compared with target parameters 1 2, which are managed individually for each elevator system with a parameter management 1 3.
  • the target parameters are in the proper state of the elevator system, for. B. at start-up, measured and saved.
  • the results of the evaluation 11 are displayed in a curve 14 as a curve on the display unit of the evaluation unit 4 and provide information about the state of the elevator system.
  • the results of the evaluation 1 1 are archived 1 5, and target curves can be calculated.
  • the results are also processed in statistics 1 6.
  • Measured curve profiles and parameters are stored on an external computer 1 7 1 8 and made available for later diagnoses. Before a specific elevator installation is diagnosed, the associated curve profiles and parameters are loaded again by the external computer 1 7 1 9.
  • the three-axis accelerometer 1 can be permanently installed in the elevator car of the elevator system or can be installed for each diagnosis.
  • FIG. 5 shows a flow diagram of the evaluation 11 of the measured acceleration values in the X, Y and Z directions.
  • the measured acceleration values a x , a y , a z (raw data) are further processed as digital acceleration data.
  • the Speed is used for offset calibration and plausibility check, as well as for frequency filtering of the raw data in order to convert the raw data into prepared acceleration data.
  • the acceleration data in the X, Y and Z directions are differentiated (da / dt) and low-pass filtered and evaluated as impact and vibration parameters for a driving comfort analysis.
  • the impact and vibration parameters are a measure of quality, especially for the guidance of the elevator car in the vertical rails, for the door movements and for the acceleration and braking acceleration.
  • the elevator system is checked from the processed data with the aid of a curve discussion, pattern recognition and parameter analysis.
  • characteristic values for the friction on the drive drum for the braking deceleration, for further operating parameters etc. can be determined.
  • standardized parameters are determined from the processed data and compared with stored target parameters for the elevator system.
  • FIG. 6 shows a mobile diagnostic device for diagnosing an elevator system.
  • the evaluation unit 4 is integrated in a mobile computer 20, for example in the form of software.
  • the at least one accelerometer 1 is introduced into the car for diagnosis.
  • the diagnostic device can also be coupled to an acceleration sensor 1 that is permanently installed in the car.
  • the target parameters available for the elevator installation are stored in a central computer 21 and are loaded into the parameter management 1 3 via the parameter channel 22.
  • a start signal Start is then sent from the evaluation unit 4 to the acceleration sensor 1.
  • the measured acceleration values are then transmitted back as raw data from the acceleration sensor 1 to the evaluation unit 4 and evaluated after data acquisition 10 11.
  • the parameters derived from the raw data are compared with the target parameters and calibration curves loaded from the central computer 21 into the parameter management 1 3 for evaluation 1 1.
  • the results of the evaluation, the evaluation results and / or parameters for data reduction are only transmitted back to the central computer 21 via the return channel 23 if limit values are exceeded and if necessary for the formation of updated target parameters from averaged parameters.
  • FIG. 7 shows a further embodiment of a permanently installed diagnostic device with a remote control center 24 for the central display and management of error messages.
  • the evaluation 1 1 of the measured acceleration data can also be carried out directly in the remote control center 24.
  • a diagnosis is triggered with a start signal START, which is sent to the acceleration sensor 1.
  • the measured raw data are transmitted back to the evaluation unit 4 and sent from there to the remote control center 24.
  • the measured acceleration data are then evaluated 11 after the data acquisition 10.
  • the evaluation 1 1 corresponds to the method outlined in FIG. 4.
  • the remote control center 24 is also coupled to the separate elevator control 27 for the elevator installation. The movement of an elevator car elevator is then remotely controlled via the data line 28 from the remote control center 24 by control signals to the elevator controller 27.

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  • Indicating And Signalling Devices For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

La présente invention concerne un procédé pour diagnostiquer des installations d'ascenseur à l'aide d'au moins un détecteur d'accélération (1). Ce procédé consiste a) à mesurer en continu l'accélération d'une cabine de l'installation d'ascenseur en déplacement, b) à transmettre immédiatement les données d'accélération mesurées à une unité d'analyse (4), c) à déterminer des paramètres normalisés à partir de ces données d'accélération, puis d) à comparer les paramètres normalisés à des paramètres théoriques enregistrés pour l'installation d'ascenseur, afin de détecter un changement d'état, les paramètres théoriques ayant été mesurés et détectés lorsque l'installation d'ascenseur se trouvait dans un état correct.
PCT/DE2002/003831 2001-10-12 2002-10-11 Dispositif de diagnostic et procede de diagnostic pour installations d'ascenseur WO2003033388A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10150284.2 2001-10-12
DE2001150284 DE10150284A1 (de) 2001-10-12 2001-10-12 Diagnoseeinrichtung und Verfahren zur Diagnose von Aufzugsanlagen

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WO2003033388A1 true WO2003033388A1 (fr) 2003-04-24

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020322A1 (fr) * 2005-08-19 2007-02-22 Kone Corporation Procede de positionnement dans un systeme d'ascenseur
FR2909060A1 (fr) * 2006-11-23 2008-05-30 Pomagalski Sa Procede de simulation du freinage d'une installation de transport par cable, procede de diagnostic du freinage d'une telle installation dispositif de commande de l'intallation.
DE102008022416A1 (de) 2008-05-06 2009-11-12 TÜV Rheinland Industrie Service GmbH Beschleunigungsmessung an einer Aufzugseinrichtung
EP2288564A2 (fr) * 2008-06-13 2011-03-02 Inventio AG Ascenseur et procédé de maintenance d'un ascenseur de ce type
GB2474285A (en) * 2009-10-12 2011-04-13 Mike Dawson Elevator acceleration monitoring system
RU2661256C2 (ru) * 2016-11-23 2018-07-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" Способ дистанционного контроля лифтов и устройство для его осуществления
US10669121B2 (en) 2017-06-30 2020-06-02 Otis Elevator Company Elevator accelerometer sensor data usage

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EP2189410B1 (fr) * 2004-06-02 2013-12-25 Inventio AG Système de monitorage pour ascenseurs
US7353916B2 (en) * 2004-06-02 2008-04-08 Inventio Ag Elevator supervision
US7143001B2 (en) * 2004-07-21 2006-11-28 Rockwell Automation Technologies, Inc. Method for monitoring operating characteristics of a single axis machine
FI118640B (fi) 2004-09-27 2008-01-31 Kone Corp Kunnonvalvontamenetelmä ja -järjestelmä hissikorin pysähtymistarkkuuden mittaamiseksi
DE102005004667A1 (de) * 2005-02-02 2006-08-10 TÜV Nord GmbH Diagnoseeinrichtung
FI118466B (fi) * 2005-04-08 2007-11-30 Kone Corp Kunnonvalvontajärjestelmä
DE102009001055A1 (de) 2009-02-20 2010-09-02 Dekra Testing & Inspection Gmbh Verfahren zur Prüfung der ordnungsgemäßen Funktionsfähigkeit eines Aufzugs
EP2221268B1 (fr) 2009-02-20 2014-04-16 DEKRA e.V. Procédé et agencement destinés à contrôler la capacité de fonctionnement réglementaire d'un ascenseur
DE102009028596A1 (de) 2009-08-17 2011-03-03 Dekra Testing & Inspection Gmbh Verfahren und Anordnung zur Prüfung der ordnungsgemäßen Funktionsfähigkeit eines Aufzugs
BR112014014706A8 (pt) 2011-12-15 2017-07-04 Dekra E V método e disposição para testar a funcionalidade apropriada de um elevador
DE102017108574A1 (de) * 2017-04-21 2018-07-05 Thyssenkrupp Ag Verfahren zur Funktionsüberwachung einer Aufzugsanlage
US11434104B2 (en) * 2017-12-08 2022-09-06 Otis Elevator Company Continuous monitoring of rail and ride quality of elevator system
US11046552B2 (en) 2018-03-27 2021-06-29 Otis Elevator Company Method and system of reducing false actuation of safety brakes in elevator system
DE102023109691A1 (de) 2023-04-18 2024-05-29 TÜV Nord Systems GmbH & Co. KG Überprüfung von Aufzugsanlagen auf der Grundlage von mehreren Messgrößen
DE102023112419A1 (de) 2023-05-11 2024-06-06 TÜV Nord Systems GmbH & Co. KG Überprüfung von Aufzugsanlagen auf der Grundlage von Abstandsmessungen
DE102023113985A1 (de) 2023-05-26 2024-05-29 TÜV Nord Systems GmbH & Co. KG Überprüfung von Aufzugsanlagen auf der Grundlage von Positionsmessungen
DE102023123084A1 (de) 2023-08-28 2024-05-29 TÜV Nord Systems GmbH & Co. KG Überprüfung einer Aufzugsanlage mit einem Referenzobjekt

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020322A1 (fr) * 2005-08-19 2007-02-22 Kone Corporation Procede de positionnement dans un systeme d'ascenseur
EP1915310A1 (fr) * 2005-08-19 2008-04-30 Kone Corporation Procede de positionnement dans un systeme d'ascenseur
US7484598B2 (en) 2005-08-19 2009-02-03 Kone Corporation Positioning method in an elevator system
US7703579B2 (en) 2005-08-19 2010-04-27 Kone Corporation Positioning method in an elevator system
EP1915310A4 (fr) * 2005-08-19 2011-09-28 Kone Corp Procede de positionnement dans un systeme d'ascenseur
FR2909060A1 (fr) * 2006-11-23 2008-05-30 Pomagalski Sa Procede de simulation du freinage d'une installation de transport par cable, procede de diagnostic du freinage d'une telle installation dispositif de commande de l'intallation.
WO2008074940A1 (fr) * 2006-11-23 2008-06-26 Pomagalski Procede de simulation du freinage d'une installation de transport par cable, procede de diagnostic du freinage d'une telle installation et dispositif de commande de l'installation
DE102008022416A1 (de) 2008-05-06 2009-11-12 TÜV Rheinland Industrie Service GmbH Beschleunigungsmessung an einer Aufzugseinrichtung
EP2288564A2 (fr) * 2008-06-13 2011-03-02 Inventio AG Ascenseur et procédé de maintenance d'un ascenseur de ce type
GB2474285A (en) * 2009-10-12 2011-04-13 Mike Dawson Elevator acceleration monitoring system
RU2661256C2 (ru) * 2016-11-23 2018-07-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" Способ дистанционного контроля лифтов и устройство для его осуществления
US10669121B2 (en) 2017-06-30 2020-06-02 Otis Elevator Company Elevator accelerometer sensor data usage

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