JP3073650B2 - Control device for double deck elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a double deck elevator.

[0002]

2. Description of the Related Art Generally, in a double-deck elevator, an upper cab (hereinafter referred to as an upper car) is used for an even-numbered floor call, and a lower cab (hereinafter referred to as an upper-car) is used for an odd-numbered floor call. (Hereinafter referred to as "double operation"). This double operation can be used like a general elevator for passengers going from even floor to even floor or from odd floor to odd floor, but passengers going from even floor to odd floor and from odd floor to even floor are It is necessary to go up and down only the first floor using the stairs, which is inconvenient for users. Therefore, such a double operation is applied to a peak time period such as when going to work or lunch, and a semi-double operation is performed in other time periods. This semi-double operation means that passengers going to even-numbered floors and passengers going to odd-numbered floors only get on the upper and lower baskets only on the departure base floor, and after leaving the departure base floor,
This is an operation in which both upper and lower cars can be stopped on any floor. This semi-double operation is convenient because the passenger can move directly to an arbitrary floor, but on the other hand, the operation efficiency is lower than that of the double operation because it corresponds to an arbitrary destination floor of the passengers of the upper and lower cars.

[0003] Both the double operation and the semi-double operation have advantages and disadvantages in terms of utilization, and in practice, the double operation and the semi-double operation are switched and operated for each time zone. In such a situation, if the car call and the hall call can be serviced by one stop mainly for the purpose of improving the driving efficiency in semi-double operation, the upper car should respond to the even floor and the lower car to the odd floor. In the case where the service is performed with a single stop without performing the service, or when the hall call is continuous, the service is performed with the single stop, as described above, to prevent a decrease in driving efficiency.

[0004]

However, conventional double operation and semi-double operation have the following problems.
You. Now, as shown in FIG. 3 (a), during the semi-double operation, a passenger in a lower car who has boarded from the departure reference floor M1 floor has registered a car call on the seventh floor, and has waited for the tenth floor to go to the departure reference floor M2 floor. Consider a case where a customer has registered a lower floor call for the 10th floor. Here, for example, when the fifth floor of the waiting customer has registered the call upper destination to the 8th floor, to a hall call at this time
The destination floor until the passenger gets in and registers the car call.
Unknown car, lower-order car that is odd-order response car responds
Will be. Then, the lower car stops next on the 7th floor
After getting off the passenger who got on the M1 floor, stop on the 8th floor
Will do. On the other hand, as shown in FIG. 3 (b), if the upper floor call on the fifth floor is made to respond to the upper car, a passenger who gets on from the departure reference floor M1 floor and heads for the seventh floor and a passenger who gets on from the fifth floor gets on. If the passenger heading to the 8th floor can be serviced by one stop, and responds as shown in FIG.
Fig. 3 shows the number of responses to the floor call below the 10th floor
One time more than in the case of (b) , leading to a decrease in operating efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. A landing destination button is installed at a landing, information on a destination floor is input before an elevator responds, and the destination floor is expected to respond earlier. Double deck elevator that can reduce the number of stops and improve driving efficiency by giving priority to the car that can respond at the same stop as the car
It is to provide a control apparatus.

[0006]

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 makes an upper car respond to an even-numbered floor hall call and an odd-numbered hall hall call. and the landing destination call registration means for registering the destination floor as a destination call in the control apparatus of a double-deck elevator to respond the lower car, you want of waiting customers at the landing for,
The destination call is provisionally assigned to the upper and lower cars, the number of stops to the final floor to be answered is calculated for each of the upper and lower cars, and the car with the least number of stops is the floor where the destination call was registered. And an upper and lower car response selecting means for selecting a car as a response car to the vehicle.

According to a second aspect of the present invention, there is provided a hall for registering, as a destination call, a destination floor desired by a waiter at a hall where a plurality of double-deck elevators each having an upper car and a lower car connected vertically are used. Temporarily assign the destination floor button and newly generated destination call to the upper and lower cars of each double deck elevator, and calculate the estimated arrival time at each floor where the already assigned destination call occurs And an allocation control means for obtaining an evaluation value for each of the upper and lower cars of each double-deck elevator based on the estimated arrival times and responding to the floor where the destination call is generated in the car having the optimum evaluation value. is there.

[0008] Further, the invention according to claim 3 is a landing destination for registering as a destination call a destination floor desired by a waiter at a landing where a plurality of double deck elevators each having an upper car and a lower car connected vertically are used. When a new destination call is registered on the floor where the destination call has already been assigned to one of the upper and lower cars, the call registration means and the newly registered destination call are taken into consideration. The estimated arrival time of the destination call already assigned to each car at the floor where the call was generated is calculated, and the estimated arrival time is used to determine the evaluation value of each of the upper and lower cars, and the new destination call is added to the car having the optimum evaluation value. Allocation control means for responding to the floor that has just occurred.

[0009]

In the control apparatus for a double deck elevator according to the first aspect of the present invention, a destination call to a destination floor desired by a waiter at a landing is temporarily assigned to an upper car and a lower car, and a response is scheduled. Is calculated for the upper car and the lower car, respectively, and the car with the least number of stops is selected as the car that responds to the floor where the destination call has been registered.

Further, in the control apparatus of the double-deck elevator according to a second aspect of the present invention, desired by the waiting customer in landing a plurality of double-deck elevators formed by connecting the upper car and the lower car vertically commissioned the call line destination to the destination floor is tentatively assigned to the cage and under the basket on top of each double-deck elevator, calculates the estimated time of arrival to each floor that is already allocated destination call of the generated are, these estimated time of arrival Thus, the evaluation value is obtained for each of the upper and lower cars of each double deck elevator, and the car having the optimum evaluation value is made to respond to the floor where the destination call is generated.

Furthermore, in the control device of the double-deck elevation terpolymer according the third aspect of the present invention, the destination call registered in the new rata into floor generated for destination calls which have already been assigned to one of the upper and lower cage Then, taking into account the newly registered destination call, the estimated arrival time of the destination call already allocated to the upper and lower cars to the floor where the destination call has occurred is calculated, and the estimated arrival time of each of the upper and lower cars is calculated. An evaluation value is determined, and the car having the optimum evaluation value is made to respond to the floor where the destination call has newly occurred.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is an overall configuration diagram showing an embodiment according to the first aspect of the present invention. Reference numeral 1 denotes a control device for controlling the double deck elevator, an operation control means 11 for controlling the running and stopping of the upper and lower cars, and an operation direction control means 1 for determining the operating direction of the upper and lower cars according to the registration status of the landing and the car.
2. Door control means 13 for controlling the opening and closing of the upper and lower car doors, respectively, landing destination buttons 2-1 to 2-12 installed on each floor
(In this embodiment, as things Example 12 floor.) Hall destination call registration means 14 for registering the car call BiNoboru recording unit 15 for registering the respective car call the upper car and the lower car, the car stop destination Using the destination floor information registered by the call ,
The landing on the destination floor of the car that responds first
It comprises upper and lower car response selecting means 16 for giving priority to a car which can be stopped at the same time as landing (upper and lower cars respond simultaneously) . 3AH and 3AL are an upper car and a lower car, respectively.

Next, the operation of the double deck elevator constructed as described above will be described with reference to FIGS.
FIG. 2 is a flowchart showing the operation of the upper and lower car response selecting means 16 of the control device 1. The operation of instructing the operation control means 11 and the driving direction control means 12 of a car in response to a hall call to be stopped is described. It is shown. FIG.
An example of the call response will be described.

The upper and lower cars are respectively departure reference floors M2 and M1.
When the destination call on the 8th floor is registered at the landing on the 5th floor after departure from the floor, the next stop floor of the upper and lower cars is detected at the timing before the answer call is determined by the upper and lower cars 3AH and 3AL and deceleration starts. Is performed, and a five-story upward landing call is detected as the target (steps S31 and S32). If the upper and lower cars are not simultaneous responses but respond by landing calls, steps S35 and subsequent steps are performed (steps S33 and S3).
4). Assuming that the upper car responds to the fifth floor landing call,
Assuming that a response to the fifth floor upward and a destination call to the eighth floor at the fifth floor from the landing destination button 2-5 are made to respond, the number of stops to the last floor to be answered at the present time is calculated (step 3).
5, 36). In the case of FIG. 3, the case shown in FIG. 3B is obtained, and the upper and lower cars stop in the order of 5, 4th floor stop → 8, 7th floor stop → 10, 9th floor stop → M2, M1 floor stop. Times.

Next, assuming that the fifth floor upward landing call is tentatively responding to the lower car, the fifth floor upward response and the destination call on the fifth floor, that is, the eighth floor, are responded to, and the final call scheduled to be answered in the same manner as the upper car. The number of stops to the floor is calculated (step S3
7, S38). In the case of FIG. 3, the case of FIG.
The upper and lower cars stop in the order of 6,5 floor stop → 8,7 floor stop → 9,8 floor stop → 10,9 floor stop → M2, M1 floor stop, so the number of stops is five.

Next, the number of stops calculated in steps 35 and S36 and steps S37 and S38 is compared. If the number of stops is the same, the normal response, that is, the even car is selected as the upper car and the odd car is selected as the lower car as the response car (step S41). If they are not the same, a car with a small number of stops is selected as a response car (step S40). FIG.
In the case (1), the upper car is selected as the answering car, and the operation control means 11 is instructed to respond to the fifth floor landing call.

Next, an embodiment of the present invention will be described. FIG. 4 is an overall configuration diagram showing one embodiment,
It is assumed that two double deck elevators are installed in a 12-story building.

Reference numerals 1A and 1B denote control units of the first and second units, respectively. The control devices 1A and 1B have the same configuration, and the control device 1A will be described. Responds to the hall call received from the group management control device 4,
A hall call responding means 11A for instructing the group management control device 4 that a response has been made, an operation control means 12A for controlling running and stopping of the upper and lower cars, and a response earlier than the response floor based on the destination floor information registered by the landing destination call. Upper and lower car response selection means 1 for giving priority to the car that can be stopped at the same time as the scheduled call
3A, driving direction control means 14A for determining the operation direction of the upper and lower cars, door control means 15A for controlling the opening and closing of the upper and lower car doors, and car call registration means for controlling the car calls of the upper and lower cars, respectively. 16A.
The car control device 1B of the second car has the same configuration as that of the first car. The group management control device 4 includes a hall destination call registration unit 41 that controls registration of the hall destination buttons 2-1 to 2-12 provided on each floor, and states of the first and second units with respect to the floor where the hall destination call occurs. And an allocation control means 42 for allocating the optimum car of the optimum car. 3
AH, 3AL and 3BH, 3BL are Unit 1 and 2 respectively.
The upper and lower baskets of the unit.

Next, the operation of the operation control device for a double deck elevator having the above configuration will be described with reference to FIGS. FIG. 5 is a flowchart showing the operation of the assignment control means 42 of the group management control device 4, and FIG. 6 is a diagram showing the operation state of each car for explaining the operation.

The operation of the assignment control means 42 will be described with reference to FIG. According to the example of FIG. 6, in the case of Unit A, a car call to the seventh floor by passengers from the departure base floor M1 floor is registered in the lower car, and a destination floor call to the M2 floor on the tenth floor is allocated to the upper car. It is assumed that the duration of the hall call has passed, for example, 10 seconds. For Car No. B, the car call to the 12th floor by passengers from the departure reference floor M2 floor is registered in the upper car, and the landing destination floor call to the departure reference floor M2 floor on the 6th floor is assigned to the upper car. It is assumed that the duration of the landing call has passed 12 seconds.

In such a situation, it is assumed that the eighth floor is registered as a landing destination call at the fifth floor landing, and a response machine to the fifth floor upward landing call is selected. The fifth floor landing destination call has been registered, and since the first landing hall call has been registered, the assigned car for the hall call has not yet been determined.
Start the allocation control process. On whether your Oyobi under in the current state
Do you of performing the calculation of the estimated time of arrival to any of the floor (step 53). The estimated arrival time is obtained by adding the time required for traveling from the current distance between the car position and the target floor (the traveling time) and the time required for stopping from the number of stops on the intermediate floor. In some cases, a car call can be made on the floor where the destination call is registered when responding to the hall, and the inverted floor is calculated.In the case of a normal vertical hall call that is not a hall destination call, it is determined as a derived car call It is general to calculate the inverted floor on the assumption that a car call occurs at the position of.

In the example shown in FIG.
Assuming that the estimated arrival time until the lower floor call on the 0th floor is 2 seconds per floor as the traveling time and the stop time is 10 seconds,
After stopping on the 8th and 7th floors, respond to the 9th and 10th floors (6 × 2)
+10+ (2 × 2) = 26 seconds, and considering the duration of the call, the estimated arrival time T _1AH (10D) is 26 + 10
= 36 seconds.

Next, assuming that a newly-generated landing call on the fifth floor and a newly-registered destination floor call on the eighth floor are temporarily assigned to the car on the A-car, any of the upper car and the lower car on the A-car can be arbitrarily assigned. The estimated arrival time to the floor is calculated (steps S54 and S55).

The predicted arrival time of the car on the No. A car at the fifth floor upward landing call which is the floor to be allocated is 3 × 2 = 6 seconds,
The predicted arrival time T _2AHH (5U) is 6 + 0 = 6 seconds. Similarly, the estimated arrival time T _2AHH (10D) of the car on Unit A to the 10th floor _{downbound call} is 5th and 4th floor for the upper and lower cars, respectively.
The 8th and 7th floors will stop at the 10th and 9th floors, 36+
10 = 46 seconds.

Next, assuming that the newly generated landing call on the fifth floor and the registered destination floor call on the eighth floor are newly assigned to the lower car of the car A, the same as the above-mentioned case, the 10th floor call is newly assigned.
Estimated arrival time T of the car on Unit A to the downstairs landing call
_2AHL (10D), the upper and lower cars are 6,5 floor → 8,
7th floor → 9th floor, 8th floor → 10, 9th floor, so 46 + 1
0 = 56 seconds, and the predicted arrival time T _2ALL (5U) of the lower car of the car A at the fifth floor upward landing call is 8 seconds (steps S56 and S57).

Step S53 is similarly performed for the No. B machine.
Steps S57 to S57 are executed, and the predicted arrival time T _1BH (6D) of the car on the No. B car in the 6th floor lower direction of the current state is 42 + 12 =
It is 54 seconds, and the estimated arrival time _T2BHH (5U) of the car on the B-car to the 5th-floor landing is 6 seconds, assuming that the 5th-floor vertical hall call is supposed to respond to the car on the B-floor. _Estimated arrival time T _{2BHH of the} car on Unit B to the landing (6
D) is 62 + 12 = 74 seconds.

Similarly, assuming that the fifth floor upward landing call is tentatively responded to the lower car of the B floor, the predicted arrival time T _2BLL (5U) of the lower floor car of the B floor to the fifth floor upward landing is 8 seconds, 6 seconds.
_Estimated arrival time T _{2BHL of the} car on Unit B to the downstairs landing
(6D) is 62 + 12 = 74 seconds.

Next, the evaluation values E _AH , E _AL ,
The calculation of E _BH and E _BL is performed (step S59). In this embodiment, the sum of the estimated arrival times when the cars of the respective cars are temporarily assigned is used as the assignment evaluation value. However, the method of calculating the assignment evaluation value is not limited to this, and the square of the estimated arrival time is used. Various calculation methods can be applied, such as using the sum of the evaluation values as the evaluation value or the maximum value of the estimated arrival time.

[0029] The evaluation value of each unit up and down basket A Unit on the car evaluation value _{E AH = T 2AHH (5U)} + T 2AHH (10D) + T 1BH (6
D) = 6 + 46 + 54 = 106 A Unit under the car evaluation value _{E AL = T 2ALL (5U)} + T 2AHL (10D) + T 1BH (6
D) = 8 + 56 + 54 = 118 _Car evaluation value on Unit B E _BH = T _2BHH (5U) + T _1AH (10D) + T _2BHH (6
D) = 6 + 36 + 74 = 116 _Car B lower car evaluation value E _BL = T _2BLL (5U) + T _1AH (10D) + T _2BHL (6
D) = 8 + 36 + 74 = 118, and the car on the car A, which is the car of the car with the minimum evaluation value E _AH , is the car assigned to the fifth floor upward landing call.

Here, it is assumed that the fifth floor upward call is not a landing destination floor call but a normal upward call, and the destination floor is uncertain before the answering car arrives. Since the destination floor for the 5th floor upward call is uncertain, assuming that a car call can be made to the 12th floor for the upper car and 11th floor for the lower car as the derived car call, the same calculation as above is performed. Upper car evaluation value E _AH = 6 + 64 + 54 = 124 Car A lower car evaluation value E _AL = 8 + 64 + 54 = 126 Car B upper car evaluation value E _BH = 6 + 34 + 64 = 106 Car B lower car evaluation value E _BL = 8 + 34 + 64 = 108 and the minimum evaluation value _{Becomes EBH and the} car on Car B is selected as the assigned car for the fifth floor upward landing call.

In the system according to the present invention, since the destination call in the upward landing call on the 5th floor is on the 8th floor, the evaluation value of the car on the No. A car that can respond at the same stop as the scheduled response after the 5th floor upward response is As a result, the priority is assigned to the same stop. On the other hand, if the optimal car is selected by the same allocation algorithm without considering the destination call, the car will be the car on the car B, which suggests that the system according to the present invention prioritizes the car of the car that can respond at the same stop. I can say.

Next, an embodiment of the present invention will be described. FIG. 7 is an overall configuration diagram. As in the configuration of FIG. 4, it is assumed that two double deck elevators are installed, and the same-unit upper and lower car response selection means 43 is provided in the group management control device 4. I have. The operation of the embodiment will be described with reference to FIGS.

According to the example shown in FIG. 9, in the case of the car A, both the upper floor call for the fourth floor and the upper floor call for the eighth floor are already assigned to the upper car, and the car A is on the fourth floor before responding to the upper floor call for the fourth floor. In this case, when a destination call to the seventh floor is added, the upper and lower cars of the same car are assigned and changed. FIG. 8 is a flowchart showing the operation of the upper and lower car response selecting means 43 of the group management control device 4. In response to the call already assigned by the assignment control means 42, the landing destination call (in this embodiment, 4
It is a destination call to the seventh floor in the floor. ) Is registered, the response selecting means 43 of the same car upper and lower car is activated. The current allocation of the assigned car room is canceled and the estimated arrival times of the upper and lower cars of the assigned car are calculated.

In the case of FIG. 9, the assignment to the upper car of the fourth floor upward call is canceled, and the calculation is executed again (step S73). Next, the upper car is assigned to the fourth floor upward call, and the expected arrival time at each hall call is calculated assuming that the upper car responds to the 6th and 7th floors as the destination call (steps S74 and S75). . The predicted arrival time T _2AHH (4U) at the fourth floor upward landing is 4 + 10 = 14 seconds, and the predicted response time T _2AHH (8U) at the eighth floor upward landing is 42 + 5 = 47 seconds.

In the same manner, the estimated arrival time is calculated assuming that the lower car of the car A responds to the fourth floor upward landing call (steps S76, S77). The predicted arrival time T _2ALL (4U) to the fourth floor upward landing is 6 + 10 = 16 seconds, and 8
_Estimated arrival time T _2AHL of the upper car to the landing on the floor (8U)
Is 32 + 5 = 37 seconds.

Next, an evaluation value is calculated as a total allocation algorithm of the estimated arrival times of the calls already allocated to the own car (step S78), and the evaluation value E _AH = T _2AHH (4U) + T of the car on the No. A car
_{2AHH (8U) = 14 + 47} = 61 evaluation value of car A under the car _{E AL = T 2ALL (4U)} + T
_2AHL (8U) = 16 + 37 = 53, and the lower car where the destination call stops the same as the call scheduled to be answered ahead of the fourth floor is better than the upper car which is the assigned car, and the upper car in the same car A response car change command is issued from the car to the lower car to the car controller 1A of the car A,
The lower car instead of the upper car responds to the fourth floor upward landing call (steps S79 and S80).

In the present embodiment, the number of stops before the target floor is calculated as the response selection means for the upper and lower cars. The priority is not limited to the above, and the same stop state is detected, and the car having the minimum number of stops is made to respond,
The car which makes the total sum of the estimated waiting times up to the respective response scheduled floors the minimum may be made to respond. Further, the present invention is not limited to only one elevator, and the change of the response sharing between the upper and lower cars of the assigned hall call may be changed in a plurality of elevators.

In the present embodiment, the car allocating means for giving priority to a car that can respond at the same stop as the landing destination floor and the call scheduled to be answered ahead is also provided in each embodiment assuming that the destination call and the landing call are tentatively answered. Although the evaluation in which the evaluation is made by reflecting the estimated arrival time has been described, the present invention is not limited to this. May be added to the overall evaluation as an evaluation value. Alternatively, a car that responds within a predetermined time period to a car having the same stop may be selected preferentially without passing through the evaluation formula. Further, in the present embodiment, the description has been given of two units, but it is apparent that the case of three or more units can be similarly treated.

In the case where the landing destination floor call is not set to all floors but is set only to a specific floor, only the control of the set floor may be applied. Further, in the present embodiment, the configuration in which the landing destination calls in the same direction are assigned to the car of the same car has been described. To determine the assigned unit.

[0040]

As described above, according to the first aspect of the present invention, since the number of stops for one elevator is reduced by the vertical car response selecting means, the waiting time for a car call and a hall call is reduced. It can be shortened and the serviceability can be improved.

Furthermore, according to the second and third aspects of the present invention, for a plurality of double-deck elevators, landing destination calls are provisionally assigned to the upper car and the lower car of each car, respectively, and the optimum call is evaluated. By assigning to a car,
The waiting time at each landing can be reduced, and the operation efficiency of the entire system can be improved.

As described above, according to the present invention, not only a call registered as a car call as in the prior art but only the same stop that is scheduled to be answered ahead of the call is prioritized. Based on the destination call information, respond to the upper and lower cars so as to minimize the number of car stops, and in a multi-unit system, determine the assigned car and car by considering the estimated arrival time for each car. Accordingly, the waiting time until each answering call and the riding time can be shortened, and the operation efficiency of the multiple-unit system can be increased, so that the service performance can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a control device for a double deck elevator according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the control device for a double deck elevator shown in FIG. 1;

FIGS. 3A and 3B are state diagrams showing the operating state of a double deck elevator.

FIG. 4 is a block diagram showing a configuration of a control device for a double-deck elevator according to an embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the control device for the double deck elevator shown in FIG. 4;

FIG. 6 is a state diagram showing an operation state of a double deck elevator.

FIG. 7 is a block diagram showing a configuration of a control device for a double deck elevator according to an embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the control device for the double deck elevator shown in FIG. 7;

FIG. 9 is a state diagram showing an operation state of a double deck elevator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Control device 2-1 to 2-12 ... Landing destination button 3AH ... Upper car 3AL ... Lower car

Claims (3)

(57) [Claims] An operation control device for a double-deck elevator, wherein an upper car responds to an even-numbered floor call and a lower car responds to an odd-numbered floor call. A landing destination call registering means for registering a desired destination floor as a destination call, and tentatively assigning the destination call to the upper car and the lower car, and stopping the number of stops up to the final call floor scheduled for response for each of the upper car and the lower car. A control device for a double deck elevator, comprising: an upper and lower car response selecting means for calculating and selecting a car with the least number of stops as a response car to the floor where the destination call is registered. 2. A landing destination call registering means for registering a destination floor desired by a waiter at a landing where a plurality of double deck elevators each having an upper car and a lower car connected vertically are registered as a destination call; Temporarily assign the destination calls that have occurred to the upper and lower cars of each double deck elevator, calculate the estimated arrival times at the floors where the destination calls that have already been assigned occur, and calculate these estimated arrival times. A control apparatus for a double-deck elevator, comprising: an assignment control unit that obtains an evaluation value for each of the upper and lower cars of each double-deck elevator and makes the car having the optimum evaluation value respond to the floor where the destination call is generated. 3. A landing destination call registering means for registering, as a destination call, a destination floor desired by a waiter at a landing where a plurality of double-deck elevators having upper and lower cars connected vertically are provided; When a new destination call is registered on the floor where a destination call already assigned to one of the cars has occurred, it is already assigned to each of the upper and lower cars in consideration of the newly registered destination call. The estimated arrival time of the destination call at the floor where the destination call occurs is calculated, and the estimated values of the upper and lower cars are calculated based on the estimated arrival time, and the floor at which the destination call is newly generated in the car having the optimum evaluation value is calculated. A control device for a double-deck elevator, the control device comprising: an assignment control unit that responds to a floor.