JP4710229B2 - Elevator system and group management control device thereof - Google Patents

Description

  In the present invention, a single car elevator system including a plurality of single car elevators in which one car is arranged in one hoistway, or a plurality of cars arranged in one hoistway or 1 The present invention relates to an elevator system such as a multi-car elevator system including a plurality of multi-car elevators, and a group management control device thereof.

FIG. 10 shows a conventional single vehicle equipped with four single car elevators (5), (5), (5) and (5) in which one car (50) is arranged so as to be movable up and down in one hoistway. This shows the configuration of the car elevator system.
As shown in the figure, the elevator system includes four elevators (5) (5) (5) (5) and a plurality of landing call devices (only one landing call device is shown) provided at a landing on a plurality of floors ( 6) and when the landing call device (6) is operated, it should be moved from the elevators of the four elevators (5), (5), (5), and (5) to the landing site where the operation is performed. It comprises a group management control device (4) for executing a car assignment operation for selecting one car.
Each of the four elevators (5), (5), (5) and (5) has an operation control device (51), and the car (50) arranged in the hoistway is controlled by the operation control device (51). The lifting operation is controlled.
The group management control device (4) includes an input / output interface (41) and a car assignment control circuit (42), and the operation control devices (4) of the four elevators (5) (5) (5) (5). 51) (51) (51) (51) and the plurality of landing call devices (6) are connected to the input / output interface (41).
For example, the car assignment control circuit (42) has a time (hereinafter referred to as response time) from when an operation is performed on the landing call device (6) until the car arrives at the landing place where the operation is performed. N types of predicted values 1 such as predicted values and predicted values for the time it takes for the elevator user to arrive at the destination floor (hereinafter referred to as service completion time) after the landing call device (6) is operated. A car assignment program for executing a car assignment operation based on .about.N and N predicted value calculation programs for calculating the predicted values 1 to N are mounted. If a landing call device that designates the destination floor is adopted instead of the landing call device (6) that designates the up or down traveling direction in order to enable more accurate prediction, For example, a car that performs a car assignment operation according to an ACA (Adaptive Call Allocation) algorithm is employed (see Non-Patent Document 1).

In the elevator system, when an operation is performed on any of the landing call devices (6) of the plurality of landing call devices, a landing call information signal is transmitted from the landing call device (6) to the group management control device ( 4) is supplied to the input / output interface (41), and the input / output interface (41) receives the signal, and from the operation control device (51) of each elevator (5), the current position of the car and the traveling direction of the car. The car state information signal representing the door open / close state, the load amount, the destination floor designated by the passenger in the car is acquired. The information on the destination floor designated for the passenger in the car is obtained from the car call information signal from the car (50). The input / output interface (41) creates system state data from the landing call information signal and the car state information signal and supplies the system state data to the car assignment control circuit (42).
In the car allocation control circuit (42), after N types of predicted values 1 to N are calculated based on the system state data by the N predicted value calculation programs described above, the predicted value 1 is calculated by the car allocation program. Based on ~ N, one car (50) is selected from the four cars, and a car assignment signal is generated indicating that the car (50) should be moved to the landing site where the landing call device (6) was operated. Is done. The generated car assignment signal is supplied to the operation control device (51) that controls the raising / lowering operation of the selected car (50) via the input / output interface (41), and the operation control device (51) The raising / lowering operation of the car (50) is controlled in accordance with the car assignment signal. As a result, the car (50) moves to the landing where the landing call device (6) has been operated.

However, in the conventional elevator (5), since only one car (50) is arranged in one hoistway, large-scale complex buildings and skyscrapers with many elevator users are used. In this case, a large number of the elevators (5) must be installed, resulting in a problem that the elevator installation area becomes large.
Therefore, a multi-car elevator in which a plurality of cars are arranged in one hoistway has been proposed (see, for example, Patent Document 1).
GCBarney, SMdos Santos: Lift Traffic Analysis Design and Control, Peter Peregrinus Ltd., 1977 JP 2003-81542 A

When constructing an elevator system having a group management control device as shown in FIG. 10 using one or a plurality of multi-car elevators, in order to avoid collision of cars in the hoistway, complicated conditional branching is performed. It is necessary to create a predictive value calculation program including it.
However, since it is practically impossible to create a complete predicted value calculation program that includes all complex conditional branches, the predicted value obtained by the actually created program has low accuracy. Is installed in the group management control device, an error occurs in the selection of the car to be moved to the landing site where the landing call device is operated.
An object of the present invention is to provide an elevator system capable of selecting an optimum car from a plurality of cars and moving it to the boarding place where the operation has been performed, and its group management control device. Is to provide.

The elevator system according to the present invention is provided in one or a plurality of multi-car elevators, in which a plurality of cars are arranged so as to be capable of being driven up and down in one hoistway, and in a plurality of floors when calling a car. A plurality of landing call devices to be operated, and one or more multicar elevators and a plurality of landing call devices, and when the operation is performed on the landing call device, the one or more multicars And a group management control device for executing a car assignment operation for selecting one car to be moved to the landing place where the operation is performed from among a plurality of cars constituting the elevator. And the group management control device
When an operation is performed on the landing call device, it receives landing call information from the landing call device, acquires car state information from one or a plurality of multi-car elevators, and from the landing call information and the car state information Information processing means for creating system state information;
Rules relating to the raising and lowering operations of the plurality of cars are defined, and the elevator operation by simulating the raising and lowering operations of the plurality of cars according to the rules using system state information obtained from the information processing means as an input signal. Or a simulation means for deriving a plurality of predicted values;
And car assignment control means for executing the car assignment operation based on one or a plurality of predicted values derived by the simulation means.

In the elevator system according to the present invention, when the landing call device is operated, landing call information such as destination floor information of the elevator user is supplied from the landing call device to the group management control device. .
The information processing means of the group management control device receives the landing call information and receives passengers from one or a plurality of multi-car elevators at the current position of the car, the traveling direction of the car, the open / closed state of the door, the load amount, and the car. The car state information such as the destination floor specified in the above is acquired, the system state information is created from the landing call information and the car state information, and supplied to the simulation means.
In the simulation means, rules for raising and lowering the car, such as “Prohibit two cars in the same hoistway from traveling in a direction approaching each other” are defined in advance. One or a plurality of predicted values related to the operation of the elevator are derived by simulating the raising and lowering operations of the plurality of cars according to the above rules using the system state information supplied as described above as input signals. As the predicted value, for example, an estimated value of a response time from when an operation is performed on the landing call device until the car arrives at the landing place where the operation is performed, or an elevator after an operation is performed on the landing call device. A predicted value of service completion time until the user arrives at the destination floor is derived. Here, it is not necessary to describe the conditional branch in the simulator means in consideration of avoidance of collision between cars in the hoistway, and it is only necessary to define the rules for raising and lowering the car as described above. High predictive value can be obtained.
Thereafter, the car assignment control means executes a car assignment operation based on one or a plurality of predicted values derived as described above. As a result, one car to be moved to the landing place where the landing call device is operated is selected from the plurality of cars.
In the elevator system according to the present invention, a highly accurate predicted value can be obtained as described above. Therefore, when the landing call device is operated, the optimum car is selected from a plurality of cars and the operation is performed. It can be moved to the platform where there was.

  Specifically, the simulation means includes first simulation means for deriving one or a plurality of types of predicted values by sequentially allocating the plurality of cars to a landing place operated by the landing call device and executing a simulation. And a second simulation means for deriving one or a plurality of types of predicted values by executing a simulation without assigning a car to the landing place operated by the landing call device, wherein the car assignment control means comprises: The car assignment operation is executed based on one or more types of predicted values derived by the simulation unit and one or more types of predicted values derived by the second simulation unit.

  In the above specific configuration, for example, the platform has already been allocated in the hoistway in which the car allocated to the platform operated by the platform call device is arranged by the first simulation means. While the predicted values for the total response time or the total service completion time when all the cars are moved are derived, all of the landing points already assigned in the hoistway by the second simulation means A predicted value for the total response time or total service completion time when the car is moved is derived. Thereafter, a car assignment operation according to, for example, the ACA algorithm is executed based on the predicted values derived by these simulation means.

  According to the elevator system and the group management control device thereof according to the present invention, when an operation is performed on the landing call device, an optimal car is selected from a plurality of cars and moved to the landing place where the operation is performed. I can do it.

Embodiments of the present invention will be specifically described below with reference to the drawings. In the following, FIG. 1 includes four multi-car elevators (2) (2) (2) (2) in which two cars (20) (20) are arranged in one hoistway. The multi-car elevator system shown will be described, but a multi-car elevator system including one or a plurality of multi-car elevators in which three or more cars are arranged in one hoistway, or a plurality of single-car elevators The same can be applied to a single car elevator system including
As shown in FIG. 1, the multi-car elevator system according to the present invention is provided at four elevators (2), (2), (2), and (2), and a multi-story platform. When there are operations for a plurality of designated hall call devices (only one hall call device is shown) (3) and the hall call device (3), the four elevators (2) (2) (2) ( It comprises a group management control device (1) for executing a car assignment operation for selecting one car (20) to be moved to the landing place where the operation was performed from among the eight cars constituting 2).
Each of the four elevators (2), (2), (2), and (2) has an operation control device (21), and the two cars (20) and (20) arranged in the hoistway control the operation. The lifting operation is controlled by the device (21).
The group management control device (1) includes an input / output interface (11), and the operation control devices (21) (21) (21) of the four elevators (2) (2) (2) (2). ) (21) and the plurality of landing call devices (3) are connected to the input / output interface (11).
A car assignment control circuit (12) composed of a microcomputer is connected to the input / output interface (11), and a car assignment program for executing a car assignment operation according to an ACA algorithm as described later is connected to the control circuit (12). Is installed.
The car assignment control circuit (12) is connected to a simulator (13) for simulating the up and down movement of the eight cars, and the simulator (13) has two types of simulator programs described later. Has been. The inventor has developed a simulator construction tool based on a model called “Extended State Machine (ESM)”, and the two types of simulator programs are constructed using the simulator construction tool, for example. Is done.

In the multi-car elevator system, when an operation is performed on any of the landing call devices (3) of the plurality of landing call devices, landing call information including destination floor information is output from the landing call device (3). A signal is supplied to the input / output interface (11) of the group management control device (1), and the input / output interface (11) receives the signal from the operation control device (21) of each elevator (2) to A car state information signal indicating the current position, the traveling direction of the car, the door open / closed state, the load amount, the destination floor designated by the passenger in the car, etc. is read. The information on the destination floor designated as a passenger in the car is obtained from the car call information signal from the car (20) (20). The input / output interface (11) creates system state data from the landing call information signal and the car state information signal, and supplies the system state data to the car assignment control circuit (12).
The car assignment control circuit (12) extracts information necessary for the simulation (hereinafter referred to as simulation system state information) from the supplied system state data, supplies the information to the simulator (13), and makes two predictions. Request calculation.

Upon receiving one prediction calculation request, the simulator (13) executes a simulation by sequentially assigning eight cars to the landing place where the landing call device (3) was operated, and thereby, N types related to elevator operation. Obtained predicted values A1 to AN. Also, the simulator (13) receives the other prediction calculation request and executes a simulation without assigning a car to the landing place where the landing call device (3) has been operated. Obtained predicted values B1 to BN. As the predicted value, for example, the following is acquired.
-Response time-Service completion time-Total response time when all cars assigned to a landing in one hoistway are moved-By avoiding collision of cars in the hoistway Total Loss Time The predicted value acquired as described above is supplied to the car assignment control circuit (12).
The car assignment control circuit (12) should select one car from the eight cars based on the supplied predicted value, and move the car to the landing where the landing call device was operated. Create a car assignment signal to the effect. The generated car assignment signal is supplied to the operation control device (21) that controls the raising / lowering operation of the selected car (20) via the input / output interface (11), and the operation control device (21) The raising / lowering operation of the car (20) is controlled in accordance with the car assignment signal. As a result, the car (20) moves to the landing where the operation for the landing call device has been performed.

FIG. 2 shows a specific procedure executed by the car assignment program installed in the car assignment control circuit (12).
First, in step S1, the system waits for reception of system state data from the input / output interface (11). When system state data is received, the process proceeds to step S2, and the current position and travel of the car are determined from the received system state data. System state information for simulation such as direction is taken out, supplied to the simulator (13), and two prediction calculation requests A and B are output. In response to the prediction calculation request A, the simulator (13) moves to the platform where the landing call device (3) is operated, and the car j (in the hoistway i (i = 1 to Nshaft, Nshaft: the number of hoistways)) (j = 1 to Ncar, Ncar: the number of cars in one hoistway) and simulation is executed, thereby obtaining N types of predicted values A1 (i, j) to AN (i, j). Also, in response to the prediction calculation request B, a simulation is executed without assigning a car to the landing place where the landing call device (3) has been operated, whereby N types of prediction values B1 (i) to BN (i) are executed. To get.

After that, in step S3, the car j assigned to the landing station operated by the landing call device is assigned from the N types of predicted values A1 (i, j) to AN (i, j) obtained from the simulator (13). A predicted value NWT (i, j) is extracted for the total response time when all other cars that have already been assigned to the platform in the hoistway i are moved. In addition, the response time when moving all the cars that have already been assigned landings in the hoistway i from the N types of predicted values B1 (i) to BN (i) obtained from the simulator (13). Extract the predicted value WT (i) for the sum.
Subsequently, in step S4, after the variable i is set to 1, in step S5, the variable j is set to 1, and in step S6, the predicted value WT (i) is subtracted from the predicted value NWT (i, j). As a result, the increase amount COST (i, j) of the total response time by assigning the car to the landing place where the landing call device has been operated is calculated. Thereafter, in step S7, it is determined whether or not the increase COST (i, j) has been calculated for all the cars in one hoistway i. If NO is determined, in step S8. After counting up the variable j, the process returns to step S6.

  Thereafter, when the increase amount COST (i, j) is calculated for all the cars in one hoistway i and it is determined YES in step S7, the increase is made for all hoistways in step S9. It is determined whether or not the amount COST (i, j) has been calculated. If NO is determined, the variable i is counted up in step S10, and the process returns to step S5.

  Thereafter, when the increase amount COST (i, j) is calculated for all hoistways and it is determined YES in step S9, the process proceeds to step S11, and the increase amount COST (i, j) is minimized. Variables i and j are specified, and finally, in step S12, a car assignment signal is generated to indicate that the car j in the hoistway i should be moved to the place where the landing call device (3) has been operated. Output to the interface (11) and end the above procedure. As a result, of the eight cars, one car moves to the landing place where the landing call device (3) has been operated.

Next, the structure of a general simulator program of a multi-car elevator system and the procedure executed by the program will be described with reference to FIGS. 3 and 4 (“Simulation—A comprehensive approach using Arena”, WDKelton, RPSadowski, DASadowski, Corona), and then two types of simulator programs of the present invention will be described.
As shown in FIG. 3, the multi-car elevator system simulator program (7) includes an object (71) for each elevator car that constitutes the system, an object (72) for each passenger, the number of floors of the building, Simulation environment setting unit (73) for setting simulation environment information such as door opening / closing time, rated car speed, car capacity, rules for car lifting and lowering, and event management unit (74) for updating object registration contents ). In the object (71) about the car, “(a) characteristic”, “(b) current state”, “(c) state transition diagram” and “(d) rule of lifting operation” are registered. In the object for passengers, “(a) departure floor and destination floor”, “(b) current state”, and “(c) state transition diagram” are registered. For example, a rule that prohibits two cars in the same hoistway from traveling in a direction approaching each other is registered as a rule for the raising / lowering operation of the car.

FIG. 4 shows a procedure executed by the simulator program (7).
First, in step S21, the simulation environment information is set. In step S22, all objects for the car and passenger are set to the initial state. Then, in step S23, all the objects are stored in the event management unit (74). sign up.

Subsequently, in step S24, the time t is set to a value of 0. In step S25, the event occurrence time is updated and registered in the event management unit (74) for the object that should generate the event. Then, in step S26, the event is generated. It is determined whether or not the event registration time update registration has been completed for all the objects to be processed.
When the event registration time update registration has been completed for all the objects that should generate the event, the process proceeds to step S27 to search for the object that should generate the event in the nearest future, and the event occurrence time of that object is T, Let the object be the “next event occurrence object”. Thereafter, in step S28, the time t is set to the event occurrence time T of the next event occurrence object.

  Subsequently, in step S29, “(b) current state” of the next event occurrence object is updated according to “(c) state transition diagram”. Finally, in step S30, it is determined whether or not all events have occurred. The simulation is terminated when all the events are generated.

5 and 6 show procedures executed by two types of simulator programs of the present invention including the simulator program shown in FIG.
FIG. 5 shows a procedure executed by the simulator program for obtaining the above-described predicted values A1 (i, j) to AN (i, j). First, in step S31, the procedure is input by the elevator manager. After setting the simulation environment information, in step S32, the process waits for reception of the prediction calculation request A from the car assignment control circuit (12).

When the prediction calculation request A from the car assignment control circuit (12) is received, the variable i is set to 1 in step S33, and then the process proceeds to step S34 and the simulation system received together with the prediction calculation request A Based on the state information, the current state is registered in all the car objects in the hoistway i.
Subsequently, in step S35, the variable j is set to 1, and in step S36, the car j in the hoistway i is assigned to the landing place where the landing call device (3) has been operated, and then in step S37, the raising and lowering is performed. The simulation about the raising / lowering operation of the car in the path i is started.

Next, in step S38, N types of predicted values A1 (i, j) to AN (i, j) are acquired. In step S39, the acquired predicted values A1 (i, j) to AN (i, j) are acquired. Output to the car assignment control circuit (12).
In step S40, it is determined whether or not a simulation has been performed by allocating all the cars in the hoistway i to the landing where the landing call device (3) has been operated. After counting up the variable j, the process returns to step S36.

After that, all the cars in the hoistway i are assigned and a simulation is performed. If it is determined yes in step S40, the process proceeds to step S42 to determine whether or not the simulation is performed for all hoistways. If NO is determined, the variable i is counted up in step S43, and the process returns to step S34. Thereafter, when the simulation is performed for all hoistways, the procedure is terminated.
Through the above procedure, the above-mentioned N types of predicted values A1 (i, j) to AN (i, j) are acquired and supplied to the car assignment control circuit (12).

  FIG. 6 shows a procedure executed by the simulator program for obtaining the above-described predicted values B1 (i) to BN (i). First, in step S51, the simulation environment information input by the elevator manager is displayed. After the setting, in step S52, the process waits for reception of the prediction calculation request B from the car assignment control circuit (12).

  When the prediction calculation request B from the car assignment control circuit (12) is received, the variable i is set to 1 in step S53, and then the process proceeds to step S54 and the simulation system received together with the prediction calculation request A Based on the state information, the current state is registered in all the car objects in the hoistway i.

Subsequently, in step S55, a simulation of the raising / lowering operation of the car in the hoistway i is started, and after N types of predicted values B1 (i) to BN (i) are acquired in step S56, in step S57, the acquisition is performed. The predicted values B1 (i) to BN (i) are output to the car assignment control circuit (12).
In step S58, it is determined whether or not simulation has been performed for all hoistways. If NO is determined, the variable i is counted up in step S59, and the process returns to step S54. Thereafter, when the simulation is performed for all hoistways, the procedure is terminated.
Through the above procedure, the above-mentioned N types of predicted values B1 (i) to BN (i) are acquired and supplied to the car assignment control circuit (12).

7 and 8 are experiments conducted to compare the accuracy of predicted values obtained by a conventional predicted value calculation program (empirical rule program) according to empirical rules with the accuracy of predicted values obtained by the simulator program of the present invention. Represents the result.
FIG. 7 shows the response time (waiting time) actually measured when the conventional car rule program is installed in the group management control device and the multi-car elevator system is operated, and the prediction obtained by executing the heuristic program The relationship with the waiting time is represented by a plot, and the straight line in the figure connects the points where the actual waiting time and the predicted waiting time are equal. As shown, the plot is distributed away from the straight line.
On the other hand, FIG. 8 shows a waiting time actually measured when the multi-car elevator system is operated by mounting the simulator program of the present invention on the group management control device, and a predicted waiting time obtained by executing the simulator program. The straight line in the figure connects the points where the actual waiting time is equal to the predicted waiting time. As shown, the plots are concentrated on the straight line.
From FIG. 7 and FIG. 8, it can be said that according to the simulator program of the present invention, it is possible to obtain a predicted value with higher accuracy than the conventional rule-of-thumb program.

FIG. 9 shows the result of a simulation performed to compare the performance of the conventional double deck elevator system capable of enhancing the transportation capacity and the multicar elevator system according to the present invention. In the simulation, the number of floors of the building was 20, the number of cars in one hoistway was 2, the number of hoistways was 6, the capacity of the car was 24, and the rated speed of the car was 300 (m / min). In the double deck elevator system, a method of specifying the up or down traveling direction at the landing is adopted, while in the multi-car elevator system, a method of specifying the destination floor at the landing is adopted. The traffic pattern at work was adopted as the traffic pattern.
FIG. 9 shows the relationship between the number of passengers per hour (passenger occurrence rate) and the average value of service completion time. The solid line in the figure represents the relationship by the conventional double deck elevator system, and the broken line in the figure represents the relationship by the multicar elevator system according to the present invention. According to the multicar elevator system according to the present invention, passengers are generated. Regardless of the rate, service completion time is shorter compared to conventional double deck elevator systems.

In the elevator system according to the present invention, a highly accurate predicted value can be obtained by the simulator (13) as described above. Therefore, when the landing call device (3) is operated, The most suitable car can be selected and moved to the platform where the operation was performed.
In addition, when changing the number of cars or the number of elevators to be operated according to the increase or decrease in the number of elevator users, the conventional elevator system had to perform a complicated work of creating a new predicted value calculation program. According to the elevator system according to the invention, it is only necessary to perform a simple work of changing the simulator environment information described in the simulator program as described above, and the work of creating a new program becomes unnecessary. For example, by changing the simulator environment information regarding the number of operating cars, the number of operating cars in one hoistway can be limited to one according to traffic conditions.
Even if a new predicted value is required due to a change in the car assignment program, such a predicted value can be easily obtained by simulation, so a new predicted value calculation program is created. It is not necessary and can be applied to various car assignment programs.
However, since it is not necessary to create a new predicted value calculation program, it is possible to avoid the problem of the occurrence of bugs, and a high effect can be obtained particularly for an elevator system having a complicated configuration.

In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.
For example, it is also possible to adopt a configuration in which a single car to be moved to a landing place where the landing call device is operated is selected from a plurality of cars by a neural network.

1 is a block diagram illustrating an overall configuration of a multicar elevator system according to the present invention. It is a flowchart showing the procedure which the car allocation program of this invention performs. It is a figure showing the structure of the general simulator program of a multi-car elevator system. It is a flowchart showing the procedure which the said simulator program performs. It is a flowchart showing the procedure which the 1st simulator program of this invention performs. It is a flowchart showing the procedure which the 2nd simulator program of this invention performs. It is a graph showing the relationship between the estimated waiting time obtained by the conventional rule-of-thumb program and the actual waiting time. It is a graph showing the relationship between the prediction waiting time obtained by the simulator program of this invention, and actual waiting time. It is a graph showing the result of the simulation performed in order to compare the performance of the conventional double deck elevator system and the multi-car elevator system which concerns on this invention. It is a block diagram showing the whole structure of the conventional single car elevator system.

Explanation of symbols

(1) Group management control device
(11) I / O interface
(12) Car assignment control circuit
(13) Simulator
(2) Multi-car elevator
(20) Basket
(21) Operation control device
(3) Platform call device

Claims (3)

One or a plurality of multi-car elevators, in which a plurality of cars can be driven up and down in one hoistway, and a plurality of landing call devices that are provided at a landing on a plurality of floors and to be operated when calling a car And one or more multi-car elevators and a plurality of landing call devices, and when the landing call device is operated, a plurality of cars constituting the one or more multi-car elevators An elevator system comprising a group management control device that executes a car assignment operation for selecting one car to be moved from the inside to the platform where the operation was performed, wherein the group management control device comprises:
When an operation is performed on the landing call device, it receives landing call information from the landing call device, acquires car state information from one or a plurality of multi-car elevators, and from the landing call information and the car state information Information processing means for creating system state information;
When the rules for raising and lowering the plurality of cars are defined and the operation is performed on the landing call device , the raising and lowering actions of the plurality of cars are performed using the system state information obtained from the information processing means as an input signal. Simulation means for deriving a plurality of predicted values related to elevator operation including response time until a car arrives at a landing station according to the operation by simulating according to the rules;
An elevator system comprising car assignment control means for executing the car assignment operation based on a plurality of predicted values derived by the simulation means.   The simulation means includes a first simulation means for deriving one or a plurality of types of predicted values by sequentially allocating the plurality of cars to a landing place operated by the landing call apparatus and executing a simulation; And a second simulation means for deriving one or a plurality of types of predicted values by executing a simulation without assigning a car to the place where the operation was performed. The car assignment control means is derived by the first simulation means. The elevator system according to claim 1, wherein the car assignment operation is executed based on one or more types of predicted values and one or more types of predicted values derived by the second simulation means. One or a plurality of multi-car elevators, in which a plurality of cars can be driven up and down in one hoistway, and a plurality of landing call devices that are provided at a landing on a plurality of floors and to be operated when calling a car Is connected to the one or a plurality of multi-car elevators and a plurality of landing call devices, and when the landing call device is operated, the one or a plurality of multi-car elevators are connected. A group management control device that executes a car assignment operation for selecting one car to be moved to a landing site where the operation has been performed from among a plurality of cars that are configured,
When an operation is performed on the landing call device, it receives landing call information from the landing call device, acquires car state information from one or a plurality of multi-car elevators, and from the landing call information and the car state information Information processing means for creating system state information;
When the rules for raising and lowering the plurality of cars are defined and the operation is performed on the landing call device , the raising and lowering actions of the plurality of cars are performed using the system state information obtained from the information processing means as an input signal. Simulation means for deriving a plurality of predicted values related to elevator operation including response time until a car arrives at a landing station according to the operation by simulating according to the rules;
A group management control device comprising car assignment control means for executing the car assignment operation based on a plurality of predicted values derived by the simulation means.

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