EP0199015B1 - Load-dependent control device for a lift - Google Patents

Load-dependent control device for a lift Download PDF

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Publication number
EP0199015B1
EP0199015B1 EP86102297A EP86102297A EP0199015B1 EP 0199015 B1 EP0199015 B1 EP 0199015B1 EP 86102297 A EP86102297 A EP 86102297A EP 86102297 A EP86102297 A EP 86102297A EP 0199015 B1 EP0199015 B1 EP 0199015B1
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EP
European Patent Office
Prior art keywords
floor
load
elevator
stop
car
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Expired
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EP86102297A
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German (de)
French (fr)
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EP0199015A1 (en
Inventor
Joris Dr.-Ing. Schroeder
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Inventio AG
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Inventio AG
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Priority to AT86102297T priority Critical patent/ATE37015T1/en
Publication of EP0199015A1 publication Critical patent/EP0199015A1/en
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Publication of EP0199015B1 publication Critical patent/EP0199015B1/en
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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
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/2408—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration where the allocation of a call to an elevator car is of importance, i.e. by means of a supervisory or group controller
    • B66B1/2458—For elevator systems with multiple shafts and a single car per shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00—Aspects of control systems of elevators
    • B66B2201/10—Details with respect to the type of call input
    • B66B2201/102—Up or down call input
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00—Aspects of control systems of elevators
    • B66B2201/20—Details of the evaluation method for the allocation of a call to an elevator car
    • B66B2201/222—Taking into account the number of passengers present in the elevator car to be allocated

Definitions

  • the invention relates to a device for load-dependent control of an elevator with a selector, which signals the floor in each case on which a moving elevator car could still stop, with a load measuring device with load memory arranged in the elevator car and with a floor call memory in which the elevator car can be operated Floor calls are stored, the elevator car driving through or stopping there depending on the load on the next floor to be operated.
  • a device for load-dependent control of an elevator with a selector which signals the floor in each case on which a moving elevator car could still stop
  • a load measuring device with load memory arranged in the elevator car and with a floor call memory in which the elevator car can be operated Floor calls are stored, the elevator car driving through or stopping there depending on the load on the next floor to be operated.
  • Simpler controls have, for example, load measuring devices with full load contacts which can be set to specific fixed load limit values in accordance with the traffic conditions. It is common to set the load limit low in light traffic and high in heavy traffic, which can reduce the waiting times for passengers.
  • the invention has for its object to provide a device of the type mentioned, in which the drive-through load can be controlled such that only one elevator car has to be used for a particular floor to be operated.
  • An adder is provided which forms a sum of the number of passengers in the elevator car and the number of passengers waiting on the next floor to be served. In a comparator, this sum is compared with a number of passengers corresponding to a load limit value, the elevator car passing through on the next floor to be operated if the load limit value is exceeded and the passage taking place on the basis of the number of people in the elevator car. If the load limit equals or falls below the limit, the elevator car stops on the relevant floor.
  • 1 denotes, for example, a part of an elevator shaft of an elevator group consisting of several elevators and comprising four floors E9-E12, in which an elevator car 3 which can be driven by a conveyor cable 2 is guided.
  • the elevator car 3 has a load measuring device 4, by means of which the number L of boarded passengers can be determined.
  • the elevator car 3 also has a load store 12, which has become known in a similar form to EP 0032213 and is connected to the load measuring device 4 and an adder 8. 5 with floor call buttons for downward calls, which are connected to the inputs of memory cells of a floor call memory 6.
  • the adder 8 is connected to a comparator 9, to which a load limit value corresponding to a maximum permissible number of A passengers can be fed via a further input.
  • 10 denotes a selector, which signals the floor in each case on which the moving elevator car 3 could still stop.
  • Logic circuits 11 having three inputs are assigned to the memory cells of the storey call memory 6 in the form of, for example, AND gates, the first inputs with the output of the comparator 9, the second inputs with the outputs of the respectively associated memory cells of the storey call memory 6 and the third inputs with the outputs of the selector 10 are connected.
  • the outputs of the logic circuits 11 are connected to a travel control of the elevator, which is not shown and described.

Abstract

An elevator control system includes a car load measuring device for generating a car load signal representing the number of passengers in an elevator car and a floor load sensor for generating a signal representing the number of passengers waiting for an elevator at each floor. As the elevator car approaches the next floor at which it could stop, the floor load sensor generates its signal for that floor which is combined with the car load signal in an adder to generate a signal representing the total car load if the elevator car were to stop. The signal representing the total load is compared with a signal representing a maximum permissible car load and, if the maximum has not been exceeded, an enable signal is generated to one input of each of a plurality of logic circuits. The second input of each logic circuit is connected to a memory cell for a corresponding floor in a floor call memory and the third input of each logic circuit is connected to the corresponding floor in the floor selector device. Thus, when the signal representing the next floor at which the elevator car could stop corresponds to a stored floor call for that floor and the total potential load does not exceed the maximum permissible load, the corresponding logic circuit will generate a stop signal to cause the elevator to stop at the respective floor.

Description

Die Erfindung betrifft eine Einrichtung zur lastabhängigen Steuerung eines Aufzuges mit einem Selektor, der jeweils dasjenige Stockwerk signalisiert, auf dem eine fahrende Aufzugskabine noch anhalten könnte, mit einer in der Aufzugskabine angeordneten Lastmesseinrichtung mit Lastspeicher und mit einem Stockwerkrufspeicher, in welchem von der Aufzugskabine zu bedienende Stockwerkrufe gespeichert sind, wobei die Aufzugskabine in Abhängigkeit von der Last das nächste zu bedienende Stockwerk durchfährt oder dort anhält. Eine solche Einrichtung ist aus der Druckschrift US-A-397 3649 bekannt.The invention relates to a device for load-dependent control of an elevator with a selector, which signals the floor in each case on which a moving elevator car could still stop, with a load measuring device with load memory arranged in the elevator car and with a floor call memory in which the elevator car can be operated Floor calls are stored, the elevator car driving through or stopping there depending on the load on the next floor to be operated. Such a device is known from US-A-397 3649.

Einfachere Steuerungen weisen beispielsweise Lastmesseinrichtungen mit Vollastkontakten auf, die entsprechend den Verkehrsverhältnissen auf bestimmte feste Lastgrenzwerte einstellbar sind. So ist es üblich, bei schwachem Verkehr den Lastgrenzwert niedrig und bei starkem Verkehr hoch einzustellen, wodurch die Wartezeiten der Fahrgäste reduziert werden können.Simpler controls have, for example, load measuring devices with full load contacts which can be set to specific fixed load limit values in accordance with the traffic conditions. It is common to set the load limit low in light traffic and high in heavy traffic, which can reduce the waiting times for passengers.

Bei Aufzügen mit Steuerungseinrichtungen für den Abwärtsspitzenverkehr, wie beispielsweise mit der DE-OS 1 803 648 bekannt geworden, werden der zu erwartenden Verkehrsdichte entsprechend hohe Lastgrenzwerte eingestellt. Jedem Aufzug ist zudem nur eine bestimmte kleine Anzahl Stockwerkrufe, z. B. drei, zugeordnet, wobei angenommen wird, dass auch beim dritten Halt alle wartenden Fahrgäste mitgenommen werden können und die Augzugskabine annähernd voll ausgelastet ist. Wird der Lastgrenzwert beispielsweise schon beim zweiten Halt erreicht, so durchfährt die Aufzugskabine das dritte zugeordnete Stockwerk, wobei die Durchfahrlast dem fest eingestellten Lastgrenzwert entspricht. Können bei einem Halt wegen Erreichen des Lastgrenzwertes nicht alle wartenden Fahrgäste mitgenommen werden, so muss eine weitere Augzugskabine für das gleiche Stockwerk eingesetzt werden, wodurch mit Bezug auf das gesamte Aufzugsystem grössere Zeitverluste entstehen.In elevators with control devices for downward peak traffic, as has become known, for example, from DE-OS 1 803 648, high load limit values are set in accordance with the expected traffic density. Each elevator is also only a certain small number of floor calls, z. B. three, assigned, it being assumed that even at the third stop, all waiting passengers can be taken and the moving cabin is almost fully utilized. If, for example, the load limit value is already reached at the second stop, the elevator car travels through the third assigned floor, the drive-through load corresponding to the fixed load limit value. If it is not possible to take all of the waiting passengers on a stop due to the load limit being reached, an additional pull-out cabin must be used for the same floor, which means that there is a greater loss of time in relation to the entire elevator system.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der eingangs genannten Art zu schaffen, bei der die Durchfahrlast derart steuerbar ist, dass für ein bestimmtes zu bedienendes Stockwerk nur eine Aufzugskabine eingesetzt werden muss.The invention has for its object to provide a device of the type mentioned, in which the drive-through load can be controlled such that only one elevator car has to be used for a particular floor to be operated.

Diese Aufgabe wird durch die im Patentanspruch gekennzeichnete Erfindung gelöst. Hierbei ist ein Addierer vorgesehen, der aus der Anzahl der in der Aufzugskabine befindlichen Fahrgäste und der Anzahl der auf dem nächsten zu bedienenden Stockwerk wartenden Fahrgäste eine Summe bildet. In einem Komparator wird diese Summe mit einer einem Lastgrenzwert entsprechenden Anzahl Fahrgäste verglichen, wobei bei Überschreiten des Lastgrenzwertes die Aufzugskabine auf dem nächten zu bedienenden Stockwerk durchfährt und die Durchfahrt auf Grund der Anzahl der in der Aufzugskabine befindlichen Personen erfolgt. Bei Gleichheit oder Unterschreiten des Lastgrenzwertes hält die Aufzugskabine auf dem betreffenden Stockwerk an.This object is achieved by the invention characterized in the claim. An adder is provided which forms a sum of the number of passengers in the elevator car and the number of passengers waiting on the next floor to be served. In a comparator, this sum is compared with a number of passengers corresponding to a load limit value, the elevator car passing through on the next floor to be operated if the load limit value is exceeded and the passage taking place on the basis of the number of people in the elevator car. If the load limit equals or falls below the limit, the elevator car stops on the relevant floor.

Die mit der Erfindung erzielten Vorteile sind darin zu sehen, dass insbesondere bei hoher Verkekrsdichte in Abwärtsrichtung die im vorstehend geschilderten Stand der Technik erwähnten Zeitverluste vermieden werden. Da bei der Durchfahrentscheidung die zu erwartende Zusteigerzahl in Rechnung gestellt wird, finden entweder alle wartenden Fahrgäste bei einem Halt Platz, oder die Aufzugskabine fährt durch, wobei der nicht bediente Ruf einer anderen Aufzugskabine zugeteilt wird. Auf diese Weise wird erreicht, dass immer nur eine Aufzugskabine für ein bestimmtes zu bedienendes Stockwerk eingesetzt wird.The advantages achieved with the invention are to be seen in the fact that the time losses mentioned in the above-described prior art are avoided, in particular in the case of a high density in the downward direction. Since the anticipated number of boarding passengers is taken into account in the drive-through decision, either all waiting passengers find a stop at one stop, or the elevator car drives through, the unattended call being assigned to another elevator car. In this way it is achieved that only one elevator car is used for a particular floor to be operated.

Im folgenden wird die Erfindung anhand eines auf der Zeichnung dargestellten Ausführungsbeispieles näher erläutert, die eine schematische Darstellung der erfindungsgemässen Einrichtung zeigt.The invention is explained in more detail below with reference to an embodiment shown in the drawing, which shows a schematic representation of the device according to the invention.

In der Figur ist mit 1 ein beispielsweise vier Stockwerke E9-E12 umfassender Teil eines Aufzugsschachtes einer aus mehreren Aufzügen bestehenden Aufzugsgruppe bezeichnet, in welchem eine über ein Förderseil 2 antreibbare Aufzugskabine 3 geführt ist. Die Aufzugskabine 3 weist eine Lastmesseinrichtung 4 auf, mittels welcher die Anzahl L der eingestiegenen Fahrgäste festgestellt werden kann. Die Aufzugskabine 3 weist ferner einen in ähnlicher Form mit dem EP 0032213 bekannt gewordenen Lastspeicher 12 auf, der mit der Lastmesseinrichtung 4 und einem Addierer 8 verbunden ist. Mit 5 sind Stockwerkrufknöpfe für Abwärtsrufe bezeichnet, die mit den Eingängen von Speicherzellen eines Stockwerkrufspeichers 6 verbunden sind. Ausgangsseitig steht der Addierer 8 mit einem Komparator 9 in Verbindung, dem über einen weiteren Eingang ein einer maximal zulässigen Anzahl A Fahrgäste entsprechender Lastgrenzwert zuführbar ist. Mit 10 ist ein Selektor bezeichnet, der jeweils dasjenige Stockwerk signalisiert, auf dem die fahrende Aufzugskabine 3 noch anhalten könnte. Den Speicherzellen des Stockwerkrufspeichers 6 sind drei Eingänge aufweisende logische Schaltkreise 11 in Form von beispielsweise UND-Gliedern zugeordnet, wobei die ersten Eingänge mit dem Ausgang des Komparators 9, die zweiten Eingänge mit den Ausgängen der jeweils zugeordneten Speicherzellen des Stockwerkrufspeichers 6 und die dritten Eingänge mit den Ausgängen des Selektors 10 verbunden sind. Die Ausgänge der logischen Schaltkreise 11 stehen mit einer nicht weiter dargestellten und beschriebenen Fahrsteuerung des Aufzuges in Verbindung.In the figure, 1 denotes, for example, a part of an elevator shaft of an elevator group consisting of several elevators and comprising four floors E9-E12, in which an elevator car 3 which can be driven by a conveyor cable 2 is guided. The elevator car 3 has a load measuring device 4, by means of which the number L of boarded passengers can be determined. The elevator car 3 also has a load store 12, which has become known in a similar form to EP 0032213 and is connected to the load measuring device 4 and an adder 8. 5 with floor call buttons for downward calls, which are connected to the inputs of memory cells of a floor call memory 6. On the output side, the adder 8 is connected to a comparator 9, to which a load limit value corresponding to a maximum permissible number of A passengers can be fed via a further input. 10 denotes a selector, which signals the floor in each case on which the moving elevator car 3 could still stop. Logic circuits 11 having three inputs are assigned to the memory cells of the storey call memory 6 in the form of, for example, AND gates, the first inputs with the output of the comparator 9, the second inputs with the outputs of the respectively associated memory cells of the storey call memory 6 and the third inputs with the outputs of the selector 10 are connected. The outputs of the logic circuits 11 are connected to a travel control of the elevator, which is not shown and described.

Die anhand der Figur beschriebene Einrichtung arbeitet wie folgt :

  • Die Kabine fährt durch, wenn (L + W) > a, und die Kabine hält an wenn (L + W) .,. A, wobei L die Anzahl der in der Kabine befindlichen Fahrgäste, W die Anzahl der auf den nächsten zu bedienenden Stockwerk wartenden Fahrgäste und A eine
einem Lastgrenzwert entsprechende Anzahl Fahrgäste bedeuten. Es möge angenommen sein, dass auf den Stockwerken E10, E11 und E12 eingegebene Abwärtsrufe der einen Aufzugskabine 3 der Aufzugsgruppe zugeteilt wurden und die Aufzugskabine 3 nach Einstieg der Fashrgäste auf Stockwerk E12 nicht ausgelastet ist. Nach Abfahrt vom Stockwerk E12 in Abwärtsrichtung signalisiert der Selektor 10 das Stockwerk E11, so dass der Lastspeicher 12 veranlasst wird, die ermittelte Anzahl W der auf dem Stockwerk E11 wartenden Fahrgäste an den Addierer 8 abzugeben. Im Lastspeicher 12 werden die peijedem Zusteigehalt ermittelten Lastdifferenzen gespeichert und aus den Lastdifferenzen und der Anzahl Zusteigehalte ein Mittelwert gebilder, welcher dem Addierer 8 als wahrscheinliche Anzahl W der auf dem nächsten zu bedienenden Stockwerk wartenden Fahrgäste zugeführt wird. Da gleichzeitig die von der Lastmesseinrichtung 4 ermittelte Anzahl L in der Aufzugskabine 3 befindlicher Fahrgäste dem Addierer 8 zugeführt wird, kann eine Summe (L + W) gebildet und im Komparator 9 mit dem Lastgrenzwert A verglichen werden. Bei (L + W) < A gibt der Komparator 9 ein Signal ab, welches bei Koinzidenz von Stockwerkruf und Selektorsignal für Stockwerk E11 bewirkt, dass am Ausgang des betreffenden UND-Gliedes 11 ein Haltesignal auftritt und die Aufzugskabine 3 am Stockwerk E11 anhält. Wenn jedoch (L + W) > A ist, bewirkt das vom Komparator 9 abgegebene Signal, dass am Ausgang des betreffenden UND-Gliedes 11 ein Durchfahrsignal auftritt und die Aufzugskabine 3 am Stockwerk E11 vorbeifährt. In diesem Fall wird der Ruf vom Stockwerk E11 einer anderen Aufzugskabine der Aufzugsgruppe zugeteilt.The device described with reference to the figure works as follows:
  • The cabin travels when (L + W)> a, and the cabin stops when (L + W).,. A, where L is the number of passengers in the cabin, W is the number of passengers waiting for the next floor to be served, and A is one
number of passengers corresponding to a load limit value. It may be assumed that downward calls entered on floors E10, E11 and E12 have been assigned to one elevator car 3 of the elevator group and that elevator car 3 is not fully utilized after boarding the passengers on floor E12. After departure from the floor E12 in the downward direction, the selector 10 signals the floor E11, so that the load storage device 12 is caused to deliver the determined number W of the passengers waiting on the floor E11 to the adder 8. The load differences determined for each boarding content are stored in the load memory 12 and an average value is formed from the load differences and the number of boarding levels, which is fed to the adder 8 as the probable number W of the passengers waiting on the next floor to be served. Since the number L of passengers in the elevator car 3 determined by the load measuring device 4 is simultaneously fed to the adder 8, a sum (L + W) can be formed and compared with the load limit value A in the comparator 9. At (L + W) <A, the comparator 9 emits a signal which, if the floor call and the selector signal for floor E11 coincide, causes a stop signal to occur at the output of the relevant AND element 11 and the elevator car 3 to stop on floor E11. However, if (L + W)> A, the signal emitted by the comparator 9 causes a drive-through signal to occur at the output of the relevant AND element 11 and the elevator car 3 drives past the floor E11. In this case, the call from floor E11 is assigned to another elevator car in the elevator group.

Claims (1)

  1. Equipment, for the load-dependent control of a lift, with a selector (10), which each time indicates that floor, at which a travelling lift cage (3) could still stop, with a load-measuring equipment (4) with load memory (12) and with a floor call memory (6), in which floor calls to be served by the lift cage (3) are stored, wherein the lift cage (3) in dependence on the load either travels through the next floor to be served or stops there, characterised thereby, that load differences determined from the load at arrival and the load at departure at each boarding stop are stored in the load memory (12) connected with the load-measuring equipment (4) and a mean value is formed from the load differences and that the load memory (12) is connected with the adder (8), wherein on departure from a floor each time the newest mean value is fed to the adder (8) as probable number (W) of the passengers waiting on the next floor to be served.
EP86102297A 1985-04-22 1986-02-21 Load-dependent control device for a lift Expired EP0199015B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102297T ATE37015T1 (en) 1985-04-22 1986-02-21 DEVICE FOR LOAD DEPENDENT CONTROL OF AN ELEVATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH171385 1985-04-22
CH1713/85 1985-04-22

Publications (2)

Publication Number Publication Date
EP0199015A1 EP0199015A1 (en) 1986-10-29
EP0199015B1 true EP0199015B1 (en) 1988-09-07

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EP86102297A Expired EP0199015B1 (en) 1985-04-22 1986-02-21 Load-dependent control device for a lift

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US (1) US4708224A (en)
EP (1) EP0199015B1 (en)
JP (2) JPS61243780A (en)
AT (1) ATE37015T1 (en)
CA (1) CA1252924A (en)
DE (1) DE3660672D1 (en)
FI (1) FI87553C (en)
HK (1) HK790A (en)

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Publication number Publication date
FI861619A (en) 1986-10-23
JPH0635266U (en) 1994-05-10
US4708224A (en) 1987-11-24
FI87553B (en) 1992-10-15
ATE37015T1 (en) 1988-09-15
HK790A (en) 1990-01-12
DE3660672D1 (en) 1988-10-13
FI861619A0 (en) 1986-04-17
EP0199015A1 (en) 1986-10-29
CA1252924A (en) 1989-04-18
FI87553C (en) 1993-01-25
JPS61243780A (en) 1986-10-30

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