EP3071501A1 - Procédé permettant de faire fonctionner un dispositif de commande d'ascenseur - Google Patents

Procédé permettant de faire fonctionner un dispositif de commande d'ascenseur

Info

Publication number
EP3071501A1
EP3071501A1 EP14799398.4A EP14799398A EP3071501A1 EP 3071501 A1 EP3071501 A1 EP 3071501A1 EP 14799398 A EP14799398 A EP 14799398A EP 3071501 A1 EP3071501 A1 EP 3071501A1
Authority
EP
European Patent Office
Prior art keywords
floor
control device
stop
elevator control
elevator
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.)
Granted
Application number
EP14799398.4A
Other languages
German (de)
English (en)
Other versions
EP3071501B1 (fr
Inventor
Frank Olivier Roussel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
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
Family has litigation
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Application filed by Inventio AG filed Critical Inventio AG
Priority to EP14799398.4A priority Critical patent/EP3071501B1/fr
Priority to PL14799398T priority patent/PL3071501T3/pl
Publication of EP3071501A1 publication Critical patent/EP3071501A1/fr
Application granted granted Critical
Publication of EP3071501B1 publication Critical patent/EP3071501B1/fr
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Links

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
    • B66B5/0018—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
    • 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
    • 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
    • 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
    • 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 above all to a method for operating an elevator control device. Furthermore, the invention also relates to a computer program for implementing the method and to a computer program product with such a computer program and to a device, for example an elevator control device, with such a computer program as means for carrying out the method,
  • the operation of an elevator installation by means of an elevator control device and at least one drive controlled by the elevator control device for moving at least one elevator car is known per se.
  • the elevator control device controls the movement of at least one elevator car in at least one elevator car shaft.
  • the or each elevator car - the following description is without renouncing further general validity on
  • Example of an elevator car continued - moves under control of the elevator control device individual floors and executes each at a predetermined stop position from a floor stop.
  • the predetermined stop positions result from the number of floors that connects the elevator car shaft and due to a lower edge of the individual storey doors.
  • a holding position is then that position of the elevator car in the elevator car shaft, in which a lower edge of the landing door and a lower edge of the car door are aligned or at least substantially aligned.
  • the drive controlled by the elevator control device for moving the elevator car is usually a drive in the form of an inverter fed by a supply network with an electric motor connected downstream of the converter.
  • inverter By basically known per se control of the motor-side part of the inverter (inverter) succeeds in influencing the reaching to the electric motor electrical. Power according to frequency and amplitude, so that in particular the speed of the electric motor and thus the resulting loading speed of the elevator car in the elevator car shaft can be influenced and specified by means of the elevator control device.
  • a position information referred to hereinafter as an actual position is compared with a stop position predetermined for the floor stop.
  • the position information used as the actual position receives the elevator control device from the drive, These are, for example, data on the speed and the rotational position of the drive. Such data are provided in a manner known per se by electric drives for retrieval by an external control, here the elevator control device. If the actual position and the holding position coincide within predetermined limits, the holding position is reached. The elevator car is then in a position where the car doors can be opened to the respective floor to allow passengers to get out or waiting passengers to board.
  • An object of the invention is to specify a method for operating an elevator control device provided for controlling and monitoring the movement of at least one elevator car, which already improves the accuracy when approaching a respective holding position at the floor stop and / or subsequent detection of the landing accuracy Successful floor stops allowed.
  • This object is achieved with a method for operating an intended for controlling and monitoring the movements of at least one elevator car elevator control device having the features of claim 1.
  • the elevator car moves in a manner known per se, under control of the elevator control device, to individual floors in a building and in each case executes a floor stop at a predetermined holding position.
  • a total error in the form of a deviation of an actual position of the elevator car and a position of the elevator car assumed as an actual position is determined.
  • the position assumed as the actual position-referred to below as the actual position- is determined on the basis of drive data of the elevator car, that is to say on the basis of data which are available as speed, angular position and the like from a drive and / or converter controlled by the elevator control device. It should be emphasized, however, that the actual position managed by the elevator control device is an assumed position.
  • the total error expresses a deviation between this actual position and the actual position. This total error can be evaluated statistically to check whether floor levels are done properly and the respective holding positions are approached with the actually desired land accuracy.
  • a Vorhaltwert is determined based on the total error.
  • the resulting derivative value corresponds to the underlying total error.
  • This Vorhaltwert is taken into account in a next executed by the elevator control device for starting the respective holding position comparison of actual position and holding position in addition to the actual or the holding position.
  • the drive for moving the elevator car is therefore not stopped only when the respective actual position and the holding position agree within predetermined limits, but already when the actual position is in an area defined by the Vorhaltwert located around the stop position.
  • a service technician, who checks the elevator installation and the proper function within the usual service intervals, then no longer has to check the accuracy of the landing itself and can instead resort to data relating to the accuracy of the location taken up by the elevator control unit during operation. Using such data, it is easy to determine whether the landing accuracy achieved during operation has been maintained at the tolerance specified by the standard.
  • Such data can also be called up by a setviceman without having to travel to the location of the respective elevator installation, so that compliance with the country accuracy can also be checked by "remote monitoring" (e-inspection).
  • At least two predefined values determined on the basis of the respective total error are used.
  • These at least two Vorhaltives are a first floor specific Vorhaltwert for an upward drive before the floor stop and a second floor specific Vorhalt value for a downward drive before the floor stop. This allows for consideration of influences which depend, for example, on mass acceleration, mass inertia and gravitation. In general, it can be expected that a floor stop following an uphill ride will result in a different overall error than following a previous descent. By taking into account different Vorhalthong depending on the previous direction of travel, the method can be taken into account.
  • At least four control values determined on the basis of the respective total error are used for at least individual floors.
  • These at least four Vorhalthong are a first floor specific Vorhaltwert for an upward drive before the floor stop and an upward drive to the floor stop, a second floor specific Vorhalt value for a down trip before the floor stop and a down trip to the floor stop, a third floor specific Vorhaltwert for an up drive before the floor stop and a downstroke after the floor stop and a fourth floor specific Vorhaltwert for a downward drive before the floor stop and an upward drive to the floor stop.
  • These different retention values take into account for each floor the possible driving situation of the elevator car, ie in which direction of travel
  • the above-mentioned object is also achieved with an elevator control device, which is set up to carry out the method and individual or all embodiments of the method.
  • the invention is preferably implemented in software.
  • the invention is therefore also a computer program with program code instructions executable by a computer, namely the elevator control device, as well as a storage medium with such a computer program, ie a computer program product with program code means, and finally also an elevator control device, in its memory as means for carrying out the method and its embodiments such a computer program is loaded or loadable.
  • the method described here and below is carried out automatically by the elevator control device in that the elevator control device controls the elevator car so that it moves to individual floors in a building and thereby at a predetermined stop position each executes a floor stop.
  • a total error in the form of a deviation of an actual position of the elevator car and a position of the elevator car assumed as an actual position is determined. Based on the total error, a derivative value is determined. This is taken into account in a comparison made by the elevator control device for starting the respective holding position comparison of actual position and holding position in addition to the actual or the holding position.
  • each described method step shall be read such that it is automatically executed by the elevator control system on the basis of and under the control of a respective control program executed thereon.
  • FIG. 1 shows an elevator installation with an elevator control device with an elevator car
  • Fig. 3 shows a time course of a movement of the elevator car descriptive
  • Fig. 4 is a comparator as in Fig. 2 with an upstream adder and
  • Fig. 5 to Fig. 7 schematically simplified representations of so-called look-up tables.
  • FIG. 1 shows schematically simplified an elevator system 10 in a building, not shown itself with at least one movable in at least one elevator car shaft 12 elevator car 14 and provided at a central point of the building elevator control device 16.
  • the elevator control device 16 is known per se and Way to control the elevator system 10 is provided.
  • the elevator control device 16 comprises a processing unit 17 in the form of or in the manner of a microprocessor and in a memory (not shown) a control program 18 which determines the functionality of the elevator control device 16.
  • the or each elevator car 14 is movable in a manner known per se in the elevator car shaft 12 or a respective elevator car shaft 12, so that different floors 20 of the building can be reached.
  • the elevator control device 16 controls, in a generally known manner, a drive 22 in the form of an electric motor, usually in the form of a combination of an electric motor and an inverter.
  • car doors of the elevator car 14 storey doors on each floor 20, controls in the elevator car 14 for a car call and controls on the individual floors 20 for a landing call.
  • line-bound or line-free connections between the individual units of the elevator installation 10 for the transmission of signals, data and electrical energy.
  • the mentioned car or floor calls are processed by the elevator control device 16 in a manner known per se and, for example, a movement of the elevator car 14 results from a first floor 20 to a second floor 20.
  • the elevator control device 16 controls the drive 22 accordingly and the movement ends when the elevator car reaches a holding position known with respect to the respective destination floor.
  • Such hold positions are expressed in terms of numerical values, and because they result, for example, from a fixed position of a lower edge of a respective floor door, are given to the elevator controller 16 as constant values.
  • the illustration in FIG. 2 shows a comparator 24 known per se with two inputs 26, 27 for comparing the input signals supplied there and for generating an output signal 28 as a function of the result of the comparison.
  • the comparator 24 is acted upon at its first input 26 with the respective actual position and at its second input 27 with the respective holding position.
  • the comparator 24 compares the values supplied to the two inputs 26, 27 and, if equal or sufficiently equal, produces an output signal 28 which can be used, for example, to stop the drive 22 under the control of the elevator control device 16.
  • the illustration in FIG. 2 is only an example and the comparison of the respective actual position with the holding position can likewise be carried out with a comparator implemented in software as functionality in the control program 1 8 executed by the elevator control device 16.
  • the illustration in Figure 3 shows two curves 30, 32, namely a first curve 30 and a second curve 32, for moving an elevator car 14 before and after a floor stop.
  • the first curve 30 represents the actual position of the elevator car 14 and will be referred to below accordingly.
  • the second curve 32 represents a position of the elevator car 14 assumed on the basis of drive data, in particular converter data.
  • the position of the elevator car 14 assumed on the basis of the drive data is the already mentioned actual position, since only this position is known to the elevator control device 16 and is accordingly transmitted by the elevator control device 16 assumed as actual position.
  • a position indicator designated in the technical terminology as a floor flag which defines the holding position provided for the respective floor 20.
  • a position indicator is, for example, a fork light barrier which cooperates with a switching lug which dips into the slot of the forked light barrier, as described in EP 0 483 560 B.
  • the measuring range detected by the position indicator is designated "P" in the illustration in FIG. 3 and is also referred to below as position indicator P in the interest of easy readability.
  • the abscissa on which the time t has been removed coincides with the holding position. Above the abscissa / holding position, actual or assumed positions of the elevator car 14 with the curves 30, 32 are removed before the floor stop. Below the abscissa / holding position, positions are removed according to the floor holdings.
  • the elevator control device 16 has the possibility of correcting the actual position 32 of the elevator car 14 assumed on the basis of the drive data, since the location of the position indicator P is known , In the situation exemplarily shown in FIG. 3, this occurs before the floor stop, for example at the position marked "A" and after the floor stop at the position marked "B".
  • the respective total error recorded should be used for statistical evaluations of the country accuracy of the elevator car 14.
  • the statistical evaluation can be based on the last journey, the last x journeys, for example the last ten journeys, the journeys on the current day, the journeys on the last day, the journeys in the current or previous week, in the current or previous month, etc .
  • the landing accuracy is the accuracy with which the elevator car 14 reaches the holding position / landing position at the floor.
  • due to the respectively detected total error G and the likewise known change in the cabin weight attempts are made to achieve the intended holding position as accurately as possible during a next start-up of the same floor 20 and to minimize the positioning error F.
  • the total error G on leaving the position indicator P can be taken as a measure of the positioning error F at the previous floor stop.
  • the elevator control device 16 can therefore take into account, in addition to the actual position assumed on the basis of the drive data, a derivative value formed from the total error G.
  • FIG. 4 which, like the illustration in FIG. 2, shows a comaparator 24 which generates an output signal 28 which can be used to stop the drive 22 in the case of sufficient equality of the respectively supplied quantities.
  • the comparator 24 is preceded by an adder 34.
  • the adder 34 comprises a first input 26 and a second input 35. At the first input 26, the adder 34 is acted upon by the respective actual position of the elevator car 14 and at the second input 35 by the derivative value formed on the basis of the total error G.
  • the comparator 24 itself is acted upon by the sum thus formed and the holding position supplied to its second input 27.
  • the output signal 28 is thus generated when the sum of the respective actual position and the respective preset value coincides with the holding position or sufficiently coincides.
  • the representation in FIG. 4 is of course only an example and the comparison can be carried out in the same way with a comparator implemented in software. Whether in practice a sum or a difference is formed from the actual position and the reserve value depends on the type of formation of the reserve value and on the respective direction of travel of the elevator car 14. In addition, the derivative value can also be taken into account in the form of a sum or a difference with the holding position.
  • the total error G resulting from leaving the position indicator P means that the elevator car 14 has actually "traveled” further than assumed by the elevator control device 16 on the basis of the respective actual position - hold the elevator car 14 "early" on this floor 20 at the next stop, so that, in the event of a repetition of the mispositioning which led to the previously determined total error G, the earlier stop compensates or at least partially compensates the never entirely avoidable mispositioning.
  • This is achieved in that when starting the respective Haiteposition in a executed by the elevator control device 16 Comparison of actual position and holding position in addition to the actual or the holding value of the Vorhaltwert is taken into account, for example, as is possible with the wiring of the comparator 24 shown in Figure 4 or a corresponding implementation in software.
  • a specific embodiment of the method described so far provides that, instead of a derivative value determined on the basis of a total error G, respective floor-specific reserve values are formed on the basis of floor-specific determined total errors G.
  • the processing of such stock-specific Vorhaltives corresponds for each floor 20 of the processing already described.
  • the floor-specific derivative value is taken into account in addition to the actual or the adhesive position.
  • the selection of the floor-specific derivative value to be used in each case can take place by means of a so-called look-up table 40 (look-up table, LUT), as shown by way of example in the illustration in FIG.
  • the look-up table 40 comprises a number of fields 42 corresponding to the number of floors 20 in the respective building.
  • Each field 42 comprises a floor-specific derivative value which in the illustration in FIG. 5 is represented symbolically as VH 1, VH_ 2, VI 3 and VH_n are drawn.
  • VH 1, VH_ 2, VI 3 and VH_n are drawn.
  • a look-up table 40 which is used anyway by the elevator control device 16 for managing the floor-specific holding position, is supplemented such that this look-up table 40 comprises both the floor-specific preset values and the floor-specific holding positions.
  • these are shown symbolically as HP K HP 2, IP 3 and HP n, the basic optionality being indicated by square brackets.
  • Look-up table 40 symbol is HPJ u, HPJ d, HP _2u, HPJ d. ... HP_nu, HP_nd are drawn.
  • each field 42 effectively comprises its own, small look-up table, and the value stored in its fields is used by the elevator control device 16 as a travel-direction-dependent and story-specific derivative value in the manner described above.
  • the respective direction of travel is hereby symbolically referred to as "u" (up) and "d" (down) for ease of distinction.
  • VH_ 2ud stands for the reserve value for a floor stop on the second floor 20 of the building in an upward drive in the direction of the stop position and a downward drive following the floor stop.
  • a resultant positioning error F ( Figure 3) is also partly due to this elasticity. This too can also be compensated by means of a look-up table (not shown). This is based on the assumption that upon passing the position indicator P it can be assumed that the acceleration of the elevator car 14 is constant and corresponding to the jerk is equal to zero. Furthermore, it is assumed that the speed and the acceleration of the drive 22 and the resulting speed or acceleration of the
  • Elevator car 14 are identical. Then, with a comparatively simple equation of motion, viz
  • the results of such a calculation can be floor-specific for the associated values of parameter I. be entered in a look-up table.
  • the associated values for the length change of the suspension rope can also be calculated in advance and entered into the look-up table.
  • the stock-specific values for the change in length of the support rope can be determined by the respective by the
  • Cabin or floor call selected destination floor can be retrieved from the look-up table.
  • the mass-specific values for the change in length of the support cable can be retrieved floor-specific from the look-up table by the respective mass of the elevator car detected and thus interpolation of the retrievable from the look-up table values for the change in length of the support cable.
  • the floor-specific or floor-specific and mass-specific available values for an expected change in length of the support rope are, if these values are available, taken into account in the determination of the respective Vorhaltwerts, for example by subtracting from the Vorhalt value the value for the expected change in length of the support rope ,
  • the respective total error G (FIG. 3) also depends on the charge and above all a charge change.
  • different total errors G result and, depending thereon, different default values. This is taken into account by means of a determination of a statistic either with respect to the respectively determined total errors G or the derivative values based thereon.
  • an average value of the total errors G is taken into account and from this the lead value can be determined.
  • the up / steering controller 16 manages a so-called FIFO memory or the like for each default value, in which a fixed number of total errors G, for example eight total errors, but at least always the current total error is stored , and that the mean value is formed on the content of such a memory, and the derivative value is formed on the basis of this mean value.
  • the elevator control device 16 can also generate information for installation and / or maintenance of the elevator installation 10, for example a service signal which - encodes whether the current trip was completed with a total error G within the tolerance range defined by the respective threshold value, ie whether the overall floor error G determined on floor level determines when leaving the landing floor that the landing accuracy in the previous floor hold is in that of the standard given tolerance has remained,
  • Specified is a method for operating an intended for controlling and monitoring the movements of at least one elevator car 14 elevator control device 16, wherein the elevator car 14 under control of the elevator control device 16 individual floors 20 moves in a building while doing at a predetermined holding position or predetermined holding positions in each case a floor stop and wherein in connection with the floor stop a total error G in the form of a deviation of an actual position of the elevator car 14 and a position of the elevator car 14 assumed as the actual position is determined.
  • the determined total error G describes the respective country accuracy and can be used to generate service signals and / or to improve the accuracy of the land.
  • the elevator control device 16 generates, for example, a service signal or service signals based on a respective total error G or a statistical acquisition of several values for a total error G. Additionally or alternatively, the elevator control device 16 determines a lead value based on the total error G which is at startup by the elevator control device 16 the comparison of the actual position and the Haiteposition in addition to the actual or the Haiteposition is considered.

Abstract

L'invention concerne un procédé permettant de faire fonctionner un dispositif de commande d'ascenseur (16) prévu pour commander et surveiller les déplacements d'au moins une cabine d'ascenseur (14), la cabine d'ascenseur (14) partant des différents étages (20) d'un bâtiment et effectuant un arrêt à chaque étage dans une position d'arrêt prédéterminée. On détermine une erreur totale (G) liée à l'arrêt à l'étage, sous la forme d'une déviation de la position effective de la cabine d'ascenseur (14) ainsi que d'une position admise en tant que position réelle de la cabine d'ascenseur (14), et le dispositif de commande d'ascenseur (16) produit un signal de service à l'aide de l'acquisition statistique de plusieurs valeurs pour l'erreur totale (G), et/ou détermine une valeur dérivée à l'aide de l'erreur totale (G), et la valeur dérivée est prise en compte en plus de la position réelle ou d'arrêt lors d'une comparaison entre la position réelle et la position d'arrêt effectuée par le dispositif de commande d'ascenseur (16) pour le départ à partir de chaque position d'arrêt.
EP14799398.4A 2013-11-21 2014-11-13 Procédé destiné au fonctionnement d'un dispositif de commande d'ascenseur Active EP3071501B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14799398.4A EP3071501B1 (fr) 2013-11-21 2014-11-13 Procédé destiné au fonctionnement d'un dispositif de commande d'ascenseur
PL14799398T PL3071501T3 (pl) 2013-11-21 2014-11-13 Sposób działania urządzenia sterującego dźwigiem

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13193861 2013-11-21
PCT/EP2014/074545 WO2015074958A1 (fr) 2013-11-21 2014-11-13 Procédé permettant de faire fonctionner un dispositif de commande d'ascenseur
EP14799398.4A EP3071501B1 (fr) 2013-11-21 2014-11-13 Procédé destiné au fonctionnement d'un dispositif de commande d'ascenseur

Publications (2)

Publication Number Publication Date
EP3071501A1 true EP3071501A1 (fr) 2016-09-28
EP3071501B1 EP3071501B1 (fr) 2018-01-03

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ID=49666996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14799398.4A Active EP3071501B1 (fr) 2013-11-21 2014-11-13 Procédé destiné au fonctionnement d'un dispositif de commande d'ascenseur

Country Status (9)

Country Link
US (1) US9745170B2 (fr)
EP (1) EP3071501B1 (fr)
CN (1) CN105764826B (fr)
AU (1) AU2014352038B2 (fr)
BR (1) BR112016010073B1 (fr)
ES (1) ES2658121T3 (fr)
HK (1) HK1221207A1 (fr)
PL (1) PL3071501T3 (fr)
WO (1) WO2015074958A1 (fr)

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BR112016010073B1 (pt) 2022-10-18
PL3071501T3 (pl) 2018-05-30
EP3071501B1 (fr) 2018-01-03
HK1221207A1 (zh) 2017-05-26
CN105764826A (zh) 2016-07-13
CN105764826B (zh) 2018-09-14
US9745170B2 (en) 2017-08-29
BR112016010073A2 (fr) 2017-08-01
WO2015074958A1 (fr) 2015-05-28
ES2658121T3 (es) 2018-03-08
US20160280508A1 (en) 2016-09-29
AU2014352038A1 (en) 2016-06-02
AU2014352038B2 (en) 2017-08-10

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