EP1522518A1 - Method for controlling an elevator system, and elevator system - Google Patents

Abstract

Process for controlling an elevator installation having a cabin (EC) for transporting passengers between floors (1-18) of a building comprises comparing an instantaneous load with a full load parameter and activating a bypass function when the full load parameter is exceeded. The bypass function is activated for floors for which target calls are booked. An independent claim is also included for an elevator installation. Preferred Features: The value of a counter is decremented with each start of the cabin having a lower instantaneous load than the full load parameter.

Description

The invention relates to a method for controlling an elevator installation, the a passenger transporting between floors of a building Elevator car has. The procedure provides that the travel wishes of the Passengers entered via a destination call control and from the destination call control be posted as destination calls. In addition, at a definable time a present in the elevator car instantaneous load of a load measuring device determined. The invention further relates to an elevator installation, those with an elevator car, one in the elevator car instantaneous loading measuring device and a destination call control, by means of the travel wishes of passengers to be transported can be entered and booked as destination calls provided.

In tall buildings, especially skyscrapers Used elevators that are controlled by a destination call control. there must of each passenger before departure the destination via a numerical Keyboard or other input device. The control of the elevator system instructs the passenger due to his Destination call input to an elevator, which gives the passenger an optimized travel time guaranteed. An elevator system with destination call control, for example in WO 01/72621 A1. Basis for the functioning of a on a destination call control-based elevator system is a disciplined Enter the destination calls.

However, such disciplined behavior of the passengers can not always be presupposed. It can happen the situation that only one Person makes a destination call, or it can happen that a person inputs multiple destination calls for a group, where however, the number of people does not match the number of destination calls. This undisciplined entering the destination calls, where the destination call control is not operated correctly, often occurs when many people at the same time from a floor, for example, in the ground floor need to be transported, with the mass of passengers knows all Lifts drive in the direction of the ground floor. An undisciplined input of the Destination calls are then regularly noted when fixed working hours and many employees of a company exist almost simultaneously in their offices leave to go to the ground floor. As a result, the elevator cars usually already fully loaded in the upper floors, without that each passenger individually registered by means of the destination call input his destination Has. The destination call control that allocates the elevators only starts from the registered destination calls.

Therefore, there arises the problem that destination call inputs of passengers in assigned elevator cars to the lower floors, which are fully loaded, so these passengers are not assigned with the Elevator car can be transported. The elevator car stops, however despite the full load on each floor, in which a destination call input and assigned a destination call the corresponding elevator car has been. This can lead to the situation that a passenger, the one floor above the ground floor, one already fully loaded elevator car gets assigned. The elevator car stops then on the floor where the passenger intends to board, but this can not because the elevator car is full. The elevator car stops hence also in the floor where the passenger wanted to get off, though nobody gets out.

Due to the undisciplined input of the destination calls it comes to considerable Increases in transport times, and ultimately this leads to a Reduction of transport capacity, especially in buildings with an already low transport capacity leads to very long waiting times.

EP 0 301 173 A1 describes a group control for elevators, having a monitoring circuit, which the allocation of a Destination call to an elevator with overload prevented. It is however of a careful input of destination calls, since the overload based on the booked passengers.

In WO 03/026997 A1 an elevator installation is described in which means a continuous load measurement measured the lift load will, so the number of passengers who entered no destination call input can be determined.

The present invention has for its object to avoid the above problems with faulty operation of the destination call and to provide a method for controlling an elevator system and a lift system, with which the transport time optimize and maximize the transport capacity.

This object is achieved in a method for controlling an elevator system with the above features according to the invention in that the instantaneous load is compared with a full load parameter and is activated when exceeding a bypass function of the full load. The bypass function is activated for floors for which destination calls are booked and which are still passed during a half round of the elevator car. A half-round in the sense of the present invention is understood to mean a travel of the elevator car between the reversal points of the elevator car.

The above object is further achieved by an elevator system claim 9.

The invention is based on the idea that shock times in a predominantly downslope, also referred to as down-peak traffic, only occur at certain times. With the method according to the invention will be in these rush hours even with possibly faulty operation the destination call control uniform waiting times and an optimized Utilization of transport capacity achieved. By means of the bypass function is Ensures that a fully loaded elevator car directly to the next Drop-off destination drives and destination calls from passengers arriving in intermediate floors wait to be moved to a next elevator semis.

Advantageous embodiments of the method according to the invention are the Claims 1 to 8 and the elevator installation according to the claim 10 to remove.

In an advantageous embodiment of the invention, the elevator car is at activated bypass function the floors for which from the destination call control booked destination calls are present and on which passengers of the semicircles do not want to get on until the moment load returns below the full load parameter. This will make it a full loaded elevator car on direct way from the higher floors to the ground floor or to a main hold floor drives without on already stop booked floors and thus waste transport time.

In a further advantageous embodiment of the invention is provided that booked before the exceeding of the full load parameter Destination calls that were not served on the half-round, in a priority half-round be moved with the same direction, preferably the Priority half-rounds from the elevator car following the first half-round is traversed. This will accomplish that upon arrival of the fully loaded Elevator cabin on the ground floor or on the main floor the elevator car goes directly to the upper floors and the Picking up passengers who were already assigned to this lift and due the fully loaded elevator car at the first downlink round not could be transported.

In an advantageous embodiment of the invention, the floor, on the exceeding of the full load parameter has occurred only then again approached by the elevator car, if all before the occurrence of the crossing of the full load parameter booked destination calls on a first Semicircular and / or following priority half rounds were not served, are operated. This avoids that the elevator at its upward round back to the floor, on which not all passengers their Entered destination calls and the elevator car was fully loaded, without that the passengers were already booked. Thus, a repetition avoided the situation of the first downtrend round.

In a further advantageous embodiment of the invention is provided that the elevator after serving all before the onset of the crossing of the full load parameter booked destination calls in a normal mode (operation without bypass function). This ensures that only after all non-promoted passengers from floors due to the bypass function were not approached, in the ground floor or in the main hold floor are transported to the elevator of the destination call control newly entered destination calls can be assigned again.

The measurement of the instantaneous load is advantageously at the time of Doors closed. Thus it is achieved that no change the load of the elevator can adjust more, so that at the Comparison of the instantaneous load of the elevator car with the full load parameter no errors can occur.

In a further advantageous embodiment of the invention is a number vacant seats from the outgoing and incoming booked by destination call control Passengers are charged, with the elevator car one floor only starts when the number of free seats is greater than the number of free seats Destination calls from passengers to boarding in the semi-round to be passed Floors is. By this configuration, it is possible that vacant seats by passengers getting off before the main stop in the Elevator car arise, despite busy bypass function are occupied can. By calculating the number of free seats, it is possible that the elevator stops in such a case only if the Number of seats is enough to accommodate all passengers, waiting on a floor. Thus, unnecessary stops are avoided. A floor between the floor where the crossing the full load parameter has occurred, and the ground floor is located, applies then as not approached, if at least one destination call of a passenger this floor was not served. Floors where the elevator car has passed without stopping, are considered not approached. On the other hand, there are floors that are approached despite the activated bypass function since passengers got out, they were hit when all passengers have been transported from this floor.

In a further advantageous embodiment of the invention, a counter is provided, which counts the launches of elevator car travel, in which the Instantaneous load is greater than the full load parameter. The bypass function is in Such an embodiment is activated only when a predetermined, adjustable value for the maximum number of such Vollastfahrten exceeded becomes. By such a configuration, it is possible that a one-time maloperation of the destination call control not immediately to an activation the bypass function performs, leaving passengers unintelligible Avoid driving movements of the elevator car.

In this context, it is advantageously provided that at each Start of the elevator car with a smaller instantaneous load than the full load parameter the value of the counter is decremented. This will be an activation the bypass function avoided if it is not absolutely necessary to For example, if a fully loaded elevator car only accidental and not occurred within predetermined time periods or in typical situations is. In addition, advantageously, the activation of the bypass function be monitored by a period of time, the time being shared with the value of the counter for activation and / or deactivation the bypass function is used. For this purpose, the time span, for example set to 5 minutes, and the value of the counter to activate the bypass function is periodically decremented every 2 minutes, for example. The Bypass function is not deactivated until both the time span of 5 Minutes, as well as the value of the counter by the periodic Decrement below a value to activate the bypass function and no priority half rounds exists anymore.

In an advantageous embodiment of the invention it is provided that the Activation of the bypass function is made at a counter value, the is greater than the value for deactivating the bypass function. In this way a hysteresis function is achieved, which is a non-beneficial back and forth Switching between activated and deactivated bypass function avoids.

In a further advantageous embodiment of the invention, the elevator installation comprises a group of elevators, with the bypass function for each Elevator of an elevator group can be activated separately, so that the to be inserted Priority half rounds for the carriage of those not transported Passengers on the unused floors of the concerned Lift alone or operated. In an alternative embodiment becomes the bypass function for all elevators belonging to a group activated together, with only a part of the lifts for the operation of the not approached floors with the waiting passengers during the Priority half rounds is used. The others belonging to this group Elevators can therefore already work in normal mode again, or you can still work in the bypass function by using the Floor, in which the overload has occurred, is preferably operated.

In a further advantageous embodiment of the invention are in the Activation of the bypass function and an upward direction all entered Destination calls associated with the first downlink priority round. This is especially necessary if the bypass function is activated Elevator car is located on the ground floor or in the main storey floor and their next direction of travel is the upward direction. Because in this case It is ensured that those in the unused floors at the Upward direction left passengers at the next downward priority semicircles be approached and their destination calls are served.

In a further advantageous embodiment of the invention are in the Activation of the bypass function and a downward direction all entered Destination calls below the elevator car position in the first downlink priority round operated and all above the elevator car position entered destination calls in the next consecutive downlink priority round served. This makes it possible that with activated bypass function and a position of the elevator car within the upper floors the destination calls below the elevator car position in the first downward priority semicircle be served and the destination calls that are above the floor, in which the overload has occurred, in the next consecutive downlink priority round to be served.

Fig. 1

ein Diagramm zur Veranschaulichung des Problems bei fehlerhafter Bedienung der Zielrufsteuerung gemäß dem Stand der Technik und

Fig. 2

ein Diagramm zur Veranschaulichung der Bypassfunktion gemäß der vorliegenden Erfindung;

The invention will be explained in more detail with reference to an embodiment which is shown schematically in the drawings. Hereby show:

Fig. 1

a diagram illustrating the problem in incorrect operation of the destination call control according to the prior art and

Fig. 2

a diagram illustrating the bypass function according to the present invention;

In Fig. 1 is schematically the problem of a faulty operation of Destination call control shown. Fig. 1 symbolizes 18 floors of a building. Furthermore, half rounds HR1 to HR5 are shown by arrows. An elevator car EC is in floor 15. The following situation is conceivable to explain the problem.

In the building there is a normal public traffic, at the same time in Floor 10 ended a conference. Virtually all conference participants want to drive to the main stop in floor 1, but only a few push the Terminals for the destination call input. This causes the destination call control is misinformed about the number of people waiting and destination calls from entrusting persons keep the floor 10 assigns the elevator.

This will be explained below by means of a numerical example. Here is the elevator car size defined with 15 persons. In floor 10 are 7 Zusteiger assigned by the destination call controller having the destination 1. That is, only 7 Participants in the conference have entered a destination call. On floor 8 2 persons are assigned who have the destination Floor 5. In floor 6 is assigned to 1 starter who has the target floor 1, and in floor 12 There are 3 entrants who want to drive to floor 15. The rides the elevator car EC are in so-called half-rounds HR1, HR2, HR3, HR4 and HR5 scheduled. Here is a half round HR a ride in one Direction between two reversal points, including stopovers are included. The floors where at least 1 passenger to board assigned are marked with a plus "+". The floors, in which 1 passenger wants to get off, are marked with a minus "-". If in floor 10 instead of the 7 registered passengers 15 Passengers board, the elevator car EC is fully occupied and can in the Floors 8 and 6 no longer accommodate passengers. The elevator car Nevertheless, EC stops on floors 8 and 6. On floor 5 stops the elevator car EC also for the booked boarding passenger Floor 8, which found no place in the elevator car EC, since the elevator car EC was already fully occupied on floor 8.

Following the half rounds up to the floor 12 and 15 will be board more entrances on floor 10. Even if they still waiting passengers in floors 8 and 6 again enter their destination call and these are marked in semicircular HR3, the elevator car could be in Floor 10 again be filled so that it is fully occupied, so that the situation for the passengers on floors 8 and 6 is repeated would.

Fig. 2 shows schematically the inventive method. It is again 18 floors shown, the elevator car EC is located in the Floor 15. The number of passengers is the same as in the previous one Fig. 1 illustrated example. Already during the first half-round HR1, as soon as the full load of the elevator car EC by a the instantaneous load of Elevator car EC measuring load measuring device is detected, the bypass function activated, which the destination calls of the passengers in the floors 8 and 6 in the next priority half round HR3 and the up call of Floor 12 on floor 15 from the semicircle HR2 in the semicircle HR4 shifts. Also all newly entered destination calls, for example in Floor 10, according to the semicircles HR4, PHR5 after the Priority half circle PHR3 postponed. Thus, the elevator car EC moves in Following the unloading of passengers in floor 1 upwards in the Floors 8, 6, 5 to carry the passengers due to the bypass function were not promoted on the first half-round HR1. The passengers in floor 12 will be in the next upward round HR4 in the floor 15 transported. Only after all forgotten passengers carried are, later input destination calls from the floor 10 are taken into account. When allocating new destination calls, any further lifts will be used Lift system help to defuse the situation.

The activation of the bypass function can except in the above described Situation also be activated depending on other circumstances. This will make unnecessary activations of the bypass function, which will only be random Incorrect entries of the destination call control result, avoided. To this, too allow a counter is provided, which at the start of the elevator car which the full load is exceeded, counts with the value CFLDP. After that will For example, the bypass function is activated only when the full load is three times (CFLDP = 3) was exceeded at successive half-rounds HR. If the full load is not exceeded in a half-round HR, then the Value CFLDP decremented again. Thus, the need for activation the bypass function determined more accurately.

The deactivation of the bypass function can also be time-controlled become. For this purpose, a period TDP and the value CFLDP is used. The period of time TDP begins after the first time the full load parameter is exceeded to run. It can also be provided that the time span TDP only after the first start, in which the moment load of the elevator car EC is less than full load, starts to run. The bypass function will However, only then deactivated, if in addition the value CFLDP a has reached predetermined value DPOFF. In this example, the value becomes CFLDP of the counter is periodically decremented.

To avoid unnecessary toggling between activation and deactivation Avoiding the bypass function can cause hysteresis in the values DPON and DPOFF to enable or disable the bypass function be implemented.

The above-described method for controlling an elevator system records by a tolerance against a faulty operation in the destination call control out. This is primarily due to the bypass function, which prevents a fully loaded elevator car during a Semi-circular HR stops on floors 8, 6, 5, for which destination calls are booked, but due to the loading of the elevator car EC no passengers can get in. The method thus contributes to an optimized utilization the transport capacity of the elevator car EC and ensures In addition, a speedy transport of passengers.

Claims (10)

Method for controlling an elevator installation, which has a passenger between floors (eg 1 to 18) of a building transporting elevator car (EC), with the following method steps: a) the travel wishes of the passengers are entered via a destination call control and booked by the destination call control as destination calls and b) at a definable time, an instantaneous load in the elevator car (EC) is determined by a load-measuring device,
characterized in that c) the instantaneous load is compared with a full load parameter and a bypass function is activated when the full load parameter is exceeded, whereby the bypass function is activated for such floors (eg 8, 6, 5), for the destination calls are booked during a half round (HR1) of the elevator car (EC) still to be passed. Method according to claim 1, characterized in that when the bypass function is activated, the floors (eg 8, 6, 5) for which destination calls are booked and which pass through the elevator car (EC) during the half rounds (HR1) of the elevator car through the elevator car are activated is omitted until the instantaneous load is again below the Vollastparameter. A method according to claim 1 or 2, characterized in that prior to the occurrence of the crossing of the full load parameter booked destination calls that were not operated due to the activated bypass function on the half-round (HR1) are moved to a priority half-round (PHR3) with the same direction, preferably the priority half circle (PHR3) is traveled by the elevator car (EC) during the journey following the half round (HR1) in the same direction of travel. Method according to one of claims 1 to 3, characterized in that the floor (10) on which the exceeding of the full load parameter has occurred is only approached again by the elevator car (EC), if all booked before the occurrence of exceeding the full load parameter Destination calls which were not served on a first half-round (HR1) and / or following priority half-rounds (PHR3, possibly PHR5, ...) are served. Method according to one of claims 1 to 4, characterized in that a number of free seats is calculated from the outgoing and incoming passengers booked by destination call control, wherein the elevator car (EC) moves to a floor when the number of free seats is greater than the number is the destination calls of passengers to boarding in the floors to be passed in the semicircular (HR1). Method according to one of claims 1 to 5, characterized in that a counter (CFLDP) counts the starts of trips of the elevator car (EC), in which the instantaneous load is greater than the full load parameters, wherein when exceeding a predetermined value for activating the bypass function the bypass function is activated. A method according to claim 6, characterized in that at each start of the elevator car (EC) with a smaller instantaneous load than the Vollastparameter the value of the counter is decremented. A method according to claim 6 or 7, characterized in that after activation of the bypass function, a time period is monitored and the value of the counter is periodically decremented, wherein the bypass function is not deactivated until the time period has expired and the value of the counter below the value for Activation of the bypass function is located. Elevator installation with an elevator car (EC), a load measuring device located in the elevator car (EC) and a destination call control, by means of which travel wishes of passengers to be transported can be entered and booked as destination calls, characterized in that the instantaneous load is compared with a full load parameter and when the full load parameter is exceeded, a bypass function is activated, whereby the bypass function is activated for those floors (8, 6, 5) for which destination calls are booked and which are passed during a half round (HR) of the elevator car (EC). Elevator installation according to claim 9, characterized by a counter (CFLDP) which increments a value for activating the bypass function at each start of the elevator car (EC) with an instantaneous load greater than the full load parameter and the bypass function is activated upon reaching a predetermined maximum value, the counter every time the elevator car (EC) is driven with an instantaneous load less than the full load parameter, the value for activating the bypass function is decremented.

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