EP0565865B1 - Procédé et dispositif pour attribuer des appels de palier aux cabines d'un groupe d'ascenseurs - Google Patents

Procédé et dispositif pour attribuer des appels de palier aux cabines d'un groupe d'ascenseurs Download PDF

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Publication number
EP0565865B1
EP0565865B1 EP93103915A EP93103915A EP0565865B1 EP 0565865 B1 EP0565865 B1 EP 0565865B1 EP 93103915 A EP93103915 A EP 93103915A EP 93103915 A EP93103915 A EP 93103915A EP 0565865 B1 EP0565865 B1 EP 0565865B1
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EP
European Patent Office
Prior art keywords
simulator
solution
equipment
situation
traffic
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Expired - Lifetime
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EP93103915A
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German (de)
English (en)
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EP0565865A1 (fr
Inventor
Patrick Chenais
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Inventio AG
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Inventio AG
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Classifications

    • 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
    • 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
    • B66B2201/211—Waiting time, i.e. response time
    • 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
    • B66B2201/212—Travel time
    • B66B2201/213—Travel time where the number of stops is limited
    • 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
    • B66B2201/215—Transportation capacity
    • 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
    • B66B2201/216—Energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00—Aspects of control systems of elevators
    • B66B2201/40—Details of the change of control mode
    • B66B2201/403—Details of the change of control mode by real-time traffic data

Definitions

  • the invention relates to a method and a device for carrying out the method for allocating calls entered on the floors to the cabins of an elevator group, solutions for the call allocation being calculated by means of a calculation function and the best solution being used.
  • the calculation function is to be used to distribute the calls to the cabins according to certain optimization criteria, the optimization criteria or operation goals being, for example, based on a minimum average waiting time of all passengers or the highest possible transport capacity.
  • Another important aspect in the allocation of calls are the prevailing traffic conditions, whereby three, depending on this, traffic categories must be differentiated, namely interstore traffic, upward peak traffic and downward peak traffic.
  • EP-B-0 032 213 and EP-A-0 356 731 have disclosed group control devices for intermediate storey traffic, in which mathematical formulas are used to calculate a size corresponding to the waiting times of passengers and called service costs.
  • the calculation is mainly based on the waiting times of the passengers on the floors and in the cabins during a stopover, and the travel times of the passengers in the cabins.
  • the operating costs determined for each elevator in the group are compared with one another, the input call being allocated to the cabin which has the lowest operating costs. This is to minimize the average waiting time of all passengers.
  • the calculation formula for this type of control is based on an operationally defined goal from the outset. These facilities are not suitable for achieving another surgical goal, such as minimizing long waiting times.
  • Elevator group controls of the type described above are, as described for example in DE-A-18 03 648 or EP-B-0 091 554, often equipped with devices for controlling the downward and / or upward peak traffic.
  • the building can be emptied in a relatively short time in the event of an extreme accumulation of traffic towards a main stop, for example at the end of work in an office building.
  • the devices can be activated by means of a timer or by a measuring device which determines the flow of traffic in the direction of the main stop, and at the same time the operation of calls in the upward direction can be reduced or completely prevented.
  • the control algorithm and / or the calculation formula, especially in the case of the last-mentioned device are also based on minimizing the waiting time of the passengers and increasing the conveying capacity of the elevator group.
  • a considerable period of time may elapse before the time switch mentioned above or the measuring device which determines the traffic flow takes effect, during which both the intermediate storey traffic and the downward peak traffic have to be mastered. This can happen, for example, at the beginning of the lunch break, at the end of the office or due to a sudden increase in traffic at the end of a conference on one or more mezzanine floors. Few passengers occupy cabins for upward journeys, so that many passengers who want to go down have to put up with unbearably long waiting times. In addition, the transport capacity is poorly used in such a case.
  • the invention has for its object to propose a method and a device for performing the method of the type mentioned, by means of which avoidance of the disadvantages described above, behavior of the elevator control system that is adapted to the respective operation goals and traffic conditions is always used, so that an optimal call allocation is made possible.
  • a solution selection device calculates, based on a solution given for the first time, further possible solutions for the call allocation, which are fed to a simulator.
  • a traffic model device connected to the simulator provides information from which the simulator generates factors for the solutions that relate to passengers and / or elevator components.
  • the simulator is connected to a calculation module which evaluates optimization criteria contained in it by means of the calculation function using the factors, so that possible solutions corresponding to the optimization criteria and the traffic conditions are found.
  • the calculation module is connected on the output side to the solution selection device, by means of which the best solution for the call allocation is selected.
  • the advantages achieved by the invention are, in particular, that the elevator control system automatically adapts to the given operation goals or optimization criteria and changes in traffic conditions.
  • the optimization criteria contained in the calculation module can be modified easily and quickly, which has an advantageous effect on special requirements of the operator of the elevator system.
  • 1 denotes a traffic model device that is connected to a simulator 2 that generates factors related to passengers and / or elevator components.
  • the simulator 2 On the output side, the simulator 2 is connected to a calculation module 3, which is connected on the input side to an interface, not shown, via which optimization criteria can be entered.
  • the calculation module 3 On the output side, the calculation module 3 is connected to a solution selection device 4, to which data about the current situation of the booths and entered calls are supplied and which is connected to the simulator 2 on the output side.
  • a situation assessment module 5 is connected to the simulator 2 and to the solution selection device 4.
  • the x-axis is assigned to the waiting time and the y-axis to the travel time of passengers, the passengers being identified by points in a two-dimensional factor space, and the assignments shown being determined in the simulator 2. From these assignments, data relating to traffic density, for example, which is proportional to the number of points, are derived for the calculation.
  • a neural network can be used that is so adaptable after a learning process that a wide variety of patterns can be recognized. If factors relating to elevator components are required for the calculation, the procedure described above can be followed, for example factors such as energy consumption and number of door openings being projected into a factor space.
  • the The x-axis is assigned to the number of passengers who have entered downward calls and the y-axis has been assigned to the mean waiting time, 100% corresponding to the mean waiting time determined using conventional devices. If there are three passengers with upward calls, an improvement in the mean waiting time of approximately 10% (FIG. 3a) and up to 20% (FIG. 3b) is achieved during the change of the type of traffic (increasing number of passengers with downward calls).
  • the better mezzanine or down-peak traffic program was chosen as a reference in FIG. 3a. In Fig. 3b, the program for the reference is automatically switched when the number of passengers with down calls exceeds five (characteristic curve A) or eight (characteristic curve B).
  • possible solutions for the call allocation are determined depending on the current situation of the cabins and entered calls, starting from a first-time solution calculated according to conventional rules.
  • a method called "alpha pruning” can be used.
  • a “tree” is formed, the branches of which are assigned to the cabins and calls to be operated by them and thus represent the possible solutions sought.
  • the search for solutions to the given situation ends when the latter changes.
  • Probably the best solution is fed to Simulator 2.
  • the simulator 2 receives information from the traffic model device about the probable number of passengers waiting on a floor and estimates regarding their possible destinations. Factors for what is probably the best solution are formed from this information (FIG. 2) and transferred to the calculation module 3.
  • the optimization criteria are evaluated using the calculation function using the factors, so that a solution corresponding to the optimization criteria and the traffic conditions is found.
  • This solution will be the Solution selection device 4 is fed, in which it is checked whether it is the best solution for the call allocation. If it is not the best, then another one is sought from the set of possible solutions.
  • the situation assessment module 5 analyzes the present situation on the basis of information obtained from the simulator 2, and uses this to conclude the future situation, taking into account the best solution found. If a best solution found for the call allocation would now lead to an extreme situation, such as group formation of cabins (bunching), this solution is rejected on the basis of the assessment of the situation assessment module 5.
  • the device described above can be used for the allocation of floor calls as well as for the allocation of destination calls, i.e. of calls entered on the floors for the desired destination floors.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)

Claims (5)

  1. Procédé pour attribuer aux cabines d'un groupe d'ascenseurs des appels entrés aux étages, selon lequel des solutions pour l'attribution d'appels sont calculées à l'aide d'une fonction de calcul et c'est la solution la meilleure qui est appliquée, caractérisé
    - en ce que la situation du moment des cabines et les appels entrés sont transmis à un dispositif de sélection de solution (4),
    - en ce que le dispositif de sélection de solution (4) calcule, à partir d'une première solution définie, d'autres solutions possibles pour l'attribution d'appels,
    - en ce que les solutions possibles sont transmises à un simulateur (2),
    - en ce que les informations obtenues à partir d'un dispositif de modèle de trafic (1) sont transmises au simulateur (2),
    - en ce que le simulateur (2) génère pour les différentes solutions des facteurs spécifiques des passagers et/ou des composantes d'ascenseurs,
    - en ce que les facteurs sont transmis à un module de calcul (3),
    - en ce que des critères d'optimisation sont entrés dans le module de calcul (3),
    - en ce que le module de calcul (3) évalue les critères d'optimisation à l'aide de la fonction de calcul, en utilisant les facteurs, de sorte qu'on trouve des solutions possibles qui correspondent aux critères d'optimisation et aux conditions de trafic, et
    - en ce que les solutions possibles trouvées sont transmises au dispositif de sélection de solution (4), grâce auquel la solution la meilleure est choisie pour l'attribution d'un appel.
  2. Procédé selon la revendication 1, caractérisé
    - en ce que des informations sont transmises par le simulateur (2) à un module d'évaluation de la situation (5),
    - en ce que le module d'évaluation de la situation (5) analyse la situation présente à l'aide des informations et, en tenant compte de la meilleure solution trouvée pour l'attribution d'appels, évalue la situation à venir, et
    - en ce que dans le cas d'un résultat défavorable de l'évaluation, la meilleure solution trouvée est rejetée.
  3. Dispositif pour mettre en oeuvre le procédé selon la revendication 1, caractérisé en ce que le dispositif de modèle de trafic (1) est relié au simulateur (2) qui est lui-même relié, côté sortie, au module de calcul (3), et en ce que le module de calcul (3) est relié, côté sortie, au dispositif de sélection de solution (4) et, côté entrée, à une interface, tandis que le dispositif de sélection de solution (4) est relié, côté sortie, au simulateur (2).
  4. Dispositif pour mettre en oeuvre le procédé selon la revendication 2, caractérisé en ce que le module d'évaluation de la situation (5) est relié au simulateur (2) et au dispositif de sélection de solution (4).
  5. Procédé selon la revendication 1, caractérisé en ce que les informations obtenues à partir du dispositif de modèle de trafic (1) concernant les passagers qui attendent probablement et les évaluations concernant les destinations sont transmises au simulateur (2), et en ce que le dispositif de sélection de solution (4) choisit la solution la meilleure en tenant compte de la situation à venir.
EP93103915A 1992-04-14 1993-03-11 Procédé et dispositif pour attribuer des appels de palier aux cabines d'un groupe d'ascenseurs Expired - Lifetime EP0565865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH124292 1992-04-14
CH1242/92 1992-04-14

Publications (2)

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EP0565865A1 EP0565865A1 (fr) 1993-10-20
EP0565865B1 true EP0565865B1 (fr) 1996-12-27

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EP93103915A Expired - Lifetime EP0565865B1 (fr) 1992-04-14 1993-03-11 Procédé et dispositif pour attribuer des appels de palier aux cabines d'un groupe d'ascenseurs

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EP (1) EP0565865B1 (fr)
DE (1) DE59304851D1 (fr)
FI (1) FI112789B (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288675B (en) * 1994-04-22 1998-09-09 Hitachi Ltd Elevator system
FI102268B (fi) * 1995-04-21 1998-11-13 Kone Corp Menetelmä hissiryhmän ulkokutsujen allokoimiseksi
DE102014114821A1 (de) * 2014-10-13 2015-12-17 Thyssenkrupp Ag Verfahren zum Verarbeiten eines Rufes für ein Aufzugsystem sowie entsprechendes Aufzugsystem

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Publication number Priority date Publication date Assignee Title
JPH0613390B2 (ja) * 1981-10-07 1994-02-23 株式会社日立製作所 エレベーターの群管理制御装置
JPH07110748B2 (ja) * 1989-06-14 1995-11-29 株式会社日立製作所 エレベータの群管理制御装置

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Publication number Publication date
DE59304851D1 (de) 1997-02-06
FI931640A7 (fi) 1993-10-15
FI112789B (fi) 2004-01-15
EP0565865A1 (fr) 1993-10-20
FI931640A0 (fi) 1993-04-13

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