EP0508094A1 - Procédé pour éviter le groupement local des cabines d'un groupe d'ascenseurs sous trafic varié - Google Patents

Procédé pour éviter le groupement local des cabines d'un groupe d'ascenseurs sous trafic varié Download PDF

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Publication number
EP0508094A1
EP0508094A1 EP92103582A EP92103582A EP0508094A1 EP 0508094 A1 EP0508094 A1 EP 0508094A1 EP 92103582 A EP92103582 A EP 92103582A EP 92103582 A EP92103582 A EP 92103582A EP 0508094 A1 EP0508094 A1 EP 0508094A1
Authority
EP
European Patent Office
Prior art keywords
elevator
allocation
floor
variable
gvk
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
EP92103582A
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German (de)
English (en)
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EP0508094B1 (fr
Inventor
Robert Macdonald
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Inventio AG
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Inventio AG
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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
    • B66B2201/211—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
    • B66B2201/226—Taking into account the distribution of elevator cars within the elevator system, e.g. to prevent clustering of elevator cars
    • 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
    • B66B2201/402—Details of the change of control mode by historical, statistical or predicted traffic data, e.g. by learning
    • 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 against local accumulation of elevator cars in an elevator group with variable traffic volume, in which the function of an elevator group by a suitable allocation of floor calls to elevators during call operation, with regard to one, by any combination and weighting of Elements from a predefined set of function requirements defined function profile is optimized and in which this suitable call allocation is determined and carried out based on an allocation criterion with regard to an allocation parameter with the same modifying bonuses and malusses according to a special strategy by an allocation algorithm, with a first function requirement being determined by the allocation criterion regarding the Allocation parameter is introduced into the allocation algorithm and at least one second function request by modifying the allocation parameter by means of a bonus s is taken into account to promote the corresponding functional feature or by means of a penalty to inhibit the corresponding complementary feature and the second functional requirement is to keep the local accumulation of booths low and is promoted by concentrating adjacent stops on a single booth by means of a variable distribution bonus.
  • the allocation of the floor calls to the elevators for the call operation is selected such that the floor call operation takes place as a first function request, for example with a minimal estimated waiting time, and at the same time the local accumulation of cabins is kept low as a second function request.
  • one of the two measures can preferably be weighted more.
  • the floors of the building are processed sequentially from bottom to top for "Up” floor calls and from top to bottom for “Down” floor calls.
  • assignments already made behind the floor currently being processed are taken into account.
  • This floor is called the "scan floor” and is a floor call floor on which the scanner has stopped to allocate or reallocate a floor call. This includes stops that a car has to make behind the scanning floor due to a car call. If a car is already obliged to stop behind the scanning floor, then this car is given a greater chance of receiving the allocation for the floor of the floor call currently being processed by calculating a dynamic additional value Tx and subtracting this additional value from the calculated ETA of the cabin.
  • the same procedure is used when a car has an intermediate stop between the "current position” and the scanning floor.
  • the "current position” or the selector floor (AVP floor) is the current floor position of the car when it is at rest or it is the floor on which the car can make a normal stop when it is in motion.
  • This calculated additional dynamic value Tx favors the concentration of closely adjacent stops on one cabin and thus minimizes the local clustering of cabins.
  • This dynamic additional value Tx can be said to be inversely proportional to a predefined travel distance of the elevator car. This predefined travel distance can be the same, regardless of whether the stopover results from a car call or an assigned floor call, by using the travel distance between the "current position" of the elevator car to be assigned and the scanning floor, as shown in the following formula I. .
  • the predefined travel distance can depend on whether the stopover results from an assigned floor call or from a cabin call.
  • An assigned floor call can be reassigned again, especially if the cabin is a relatively large distance from the floor call floor. So if the stop has a floor call as the cause, the travel distance from the selector floor to the scanning floor is used. If, however, a car call is the cause of the intermediate stop, i.e. a stop that the car has to make, the additional value can be increased in order to favor the currently considered car with regard to the floor call allocation by making the predefined travel distance equal to the travel distance from the car call floor to the scanning floor.
  • 4,790,412 prevents local cabin accumulations by concentrating closely adjacent stops on a particular cabin, which ensures better cabin distribution over the entire building without having to place false calls for parking floors.
  • the use of this dynamic additional value increases the probability that the cabins are already adequately spaced from one another when they are stopped.
  • A, B, C denote the elevators of an elevator group, with one in each elevator Elevator shaft 1 guided car 2 is driven in a known manner by a drive 3 via a conveyor cable 4 and 16 floors E1 ?? E16 are served.
  • the elevators may be of the hydraulic type or of the traction type as desired.
  • Each drive 3 is controlled by a drive control known, for example, from European Patent No. 0 026 406, the setpoint generation, the control functions and the start-stop initiation being implemented by means of an industrial computer 5, and with 6 symbolizing the measuring and actuating elements are connected to the industrial computer 5 via a first interface IF1 and an elevator bus 7, which provides group control to the elevators A, B, C.
  • Each cabin 2 has a load measuring device 8, a device 9 signaling the respective operating state Z of the cabin, a stop indicator 10, and a car operating panel 11.
  • the devices 8, 9, 10, 11 are connected to the industrial computer 5 via a cabin bus 12.
  • Car calls are registered in the elevator cars with suitable push button arrangements designed as part of the car operating panel 11. They are then serialized and transmitted to the industrial computer 5 via the cabin bus 12 and interface CIF, together with other cabin-related data.
  • Floor calls are registered via suitable push buttons 13 located on the different floors E1 ... E16; an "up" floor call button 14 on the bottom floor E1, an "down” floor call button 15 on the top floor E16 and "up” and “down” floor call buttons 16 on each of the mezzanine floors E2 .. ..E15.
  • the floor calls are serialized and then transmitted via floor bus 17 and input interface ICF to the industrial computer 5, where they use the distribution bonus Bv, which minimizes the local accumulation of elevator cars, in the sense of the required functional profile, to the individual Cabins 2 can be allocated for operation.
  • the distribution bonus Bv which minimizes the local accumulation of elevator cars, in the sense of the required functional profile, to the individual Cabins 2 can be allocated for operation.
  • the preferred embodiment variant chosen to represent the method according to the invention against the accumulation of elevator cars will now be explained using the floor call allocation algorithm SZA according to FIG. 2.
  • the allocation process begins with a first step SR1, which consists of scanning a registered floor call that has not yet been served.
  • This floor call is now not assigned arbitrarily, but in the sense of the two functional requirements FA1 and FA2 which are the basis of the group function.
  • the functional requirements FA1, FA2 ... are hierarchically arranged in a second step SR2 and divided into two groups: the first group for priority function requirements contains FA1, the second group for subordinate function requirements contains FA2.
  • Step 3 SR3 is about determining whether the prerequisites for using the method according to the invention are present. This method consists in keeping the local accumulation of booths low by concentrating closely adjacent stops on the same booth. However, if there are no stops between the STW.a scanning floor and the Stw.s selector floor, there is no reason to use this procedure. In this case, the floor call allocation is based on the unmodified estimated loss time costs GVK.
  • step 8 SR8 calculates the elevator with the lowest unmodified estimated loss time costs GVKmin. assigned for operation.
  • SR3 is found in step 3 between the scanning floor Stw.a and the selector floor Stw.s Halt, the prerequisites for using the method according to the invention are given. Therefore, in a next step 4 SR4, the minimization of the accumulation of elevator cars, ie their Even distribution in the elevator shaft ensures distribution bonus Bv calculated according to the following formula: where K represents a suitably chosen constant.
  • step 11 SR11 analogously to step 10, the present floor call is allocated to that elevator of elevator group A, B, C, .... the lowest modified, estimated loss time costs GVKmod.min. having.
  • FIG. 3 explains the subroutine for adaptive tracking of the distribution bonus Bv as shown in step 7 SR7 of FIG.
  • the group-related traffic volume Va is again determined as the tracking parameter.
  • step 14 SR14 the tracking of the distribution bonus Bv according to the traffic volume Va is represented in a formal manner.
  • the task of the subroutine is now to determine the tracking function F (Va) in step 14 SR14, according to which the traffic volume Va tracks the distribution bonus Bv.
  • step 15 SR15 namely derivation via artificial intelligence AI or use of existing expert knowledge.
  • the function F (Va) is therefore optionally determined in step 16 SR16 using AI methods and in step 17 SR17 using expert programs.
  • a function F (Va) results with which the variable distribution bonus Bv can be tracked according to the traffic volume Va.
  • F (Va) is the preferred embodiment variant e.g. monotonically increasing function of Va. This is represented by the formula in step 18.
  • the tracking distribution bonus Bvn is obtained by multiplying the tracking function F (Va) on the variable accounting bonus Bv calculated according to formula V. According to formula VI, this affects the modification of the estimated loss time costs: the higher the traffic volume, the greater the modification of the GVK of the corresponding cabin in subsequent, neighboring allocations.
  • FIGS. 4a and 4b represent allocations in the case of low and high traffic volume which were made with an allocation algorithm which only used a variable but not a traceable distribution bonus Bv.
  • Fig. 4a represents a desirable distribution with little traffic.
  • Fig. 4b clearly shows the deterioration.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP92103582A 1991-04-10 1992-03-02 Procédé pour éviter le groupement local des cabines d'un groupe d'ascenseurs sous trafic varié Expired - Lifetime EP0508094B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US683348 1991-04-10
US07/683,348 US5305194A (en) 1991-04-10 1991-04-10 Method and apparatus for preventing local bunching of cars in an elevator group with variable traffic flow

Publications (2)

Publication Number Publication Date
EP0508094A1 true EP0508094A1 (fr) 1992-10-14
EP0508094B1 EP0508094B1 (fr) 1995-05-24

Family

ID=24743644

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EP92103582A Expired - Lifetime EP0508094B1 (fr) 1991-04-10 1992-03-02 Procédé pour éviter le groupement local des cabines d'un groupe d'ascenseurs sous trafic varié

Country Status (7)

Country Link
US (1) US5305194A (fr)
EP (1) EP0508094B1 (fr)
JP (1) JP3050445B2 (fr)
AT (1) ATE122998T1 (fr)
CA (1) CA2062640C (fr)
DE (1) DE59202291D1 (fr)
ES (1) ES2074748T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6439349B1 (en) 2000-12-21 2002-08-27 Thyssen Elevator Capital Corp. Method and apparatus for assigning new hall calls to one of a plurality of elevator cars
US8534426B2 (en) 2007-08-06 2013-09-17 Thyssenkrupp Elevator Corporation Control for limiting elevator passenger tympanic pressure and method for the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006275280B2 (en) 2005-08-04 2012-01-19 Inventio Ag Method for assigning a user to an elevator system
TW200722359A (en) * 2005-09-27 2007-06-16 Hitachi Ltd Elevator group management system and control method therefor
US9785896B2 (en) * 2013-07-31 2017-10-10 International Business Machines Corporation Real-time prediction and correction of scheduled service bunching
CN115215169A (zh) * 2022-07-12 2022-10-21 日立楼宇技术（广州）有限公司 电梯群控方法、装置、电梯群控设备和存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081059A (en) * 1975-10-11 1978-03-28 Hitachi, Ltd. Elevator control system
GB2110423A (en) * 1981-07-15 1983-06-15 Hitachi Ltd Lift group control system
US4790412A (en) * 1988-03-16 1988-12-13 Westinghouse Electric Corp. Anti-bunching method for dispatching elevator cars
EP0342008A2 (fr) * 1988-05-11 1989-11-15 Otis Elevator Company Système de réponses relatives pondérées pour système d'attribution de cabines d'ascenseurs
EP0385810A1 (fr) * 1989-03-03 1990-09-05 Otis Elevator Company Système de répartition d'ascenseur avec système de réponses relatives et utilisant l' "intelligence artificielle" pour varier les bonus et les pénalités

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0676181B2 (ja) * 1988-02-01 1994-09-28 フジテック株式会社 エレベータの群管理制御方法及び装置
US5083640A (en) * 1989-06-26 1992-01-28 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for effecting group management of elevators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081059A (en) * 1975-10-11 1978-03-28 Hitachi, Ltd. Elevator control system
GB2110423A (en) * 1981-07-15 1983-06-15 Hitachi Ltd Lift group control system
US4790412A (en) * 1988-03-16 1988-12-13 Westinghouse Electric Corp. Anti-bunching method for dispatching elevator cars
EP0342008A2 (fr) * 1988-05-11 1989-11-15 Otis Elevator Company Système de réponses relatives pondérées pour système d'attribution de cabines d'ascenseurs
EP0385810A1 (fr) * 1989-03-03 1990-09-05 Otis Elevator Company Système de répartition d'ascenseur avec système de réponses relatives et utilisant l' "intelligence artificielle" pour varier les bonus et les pénalités

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6439349B1 (en) 2000-12-21 2002-08-27 Thyssen Elevator Capital Corp. Method and apparatus for assigning new hall calls to one of a plurality of elevator cars
US8534426B2 (en) 2007-08-06 2013-09-17 Thyssenkrupp Elevator Corporation Control for limiting elevator passenger tympanic pressure and method for the same

Also Published As

Publication number Publication date
JPH06278957A (ja) 1994-10-04
US5305194A (en) 1994-04-19
ATE122998T1 (de) 1995-06-15
JP3050445B2 (ja) 2000-06-12
CA2062640C (fr) 2003-11-18
CA2062640A1 (fr) 1992-10-11
ES2074748T3 (es) 1995-09-16
DE59202291D1 (de) 1995-06-29
EP0508094B1 (fr) 1995-05-24

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