JPH09194151A - Control device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve a fall in service at each floor in the middle when traffic in the descending direction, is heavy. SOLUTION: The control device is equipped with a down peak judging means 4 judging that traffic in the descending direction is concentrated, an allocation number counting means 7 counting the allocated landing hall calling number, and with an allocation limiting means 3 which makes an elevator cage where its allocation number counted by the allocation number counting means 7 is more than a responsible landing hall number set in advance, an allocation limited elevator cage, when traffic is at a down peak.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention assigns a hall call generated from a plurality of elevators to the most appropriate elevator and controls the assigned elevator to the hall where the hall call occurs. It is about.

[0002]

2. Description of the Related Art Conventionally, as an elevator control device when there are many passengers on the upper floor where there is a lot of traffic in the descending direction such as when leaving the office, for example, as shown in Japanese Patent Publication No. 1-24711, There is a method to solve the problem that the average boarding rate is calculated for each car and the allocation is restricted according to the car loading rate, and as the car goes downstairs, it becomes full and the fair service cannot be received. In addition, in Japanese Examined Patent Publication No. 2-53355, the remaining transport load for each floor is calculated, the elevator car to be serviced from the floor with the highest remaining transport load is calculated, and the additional allocation to this service car is prohibited, and the intermediate floor It is shown that the service degradation is eliminated.

[0003]

[Problems to be Solved by the Invention] Japanese Patent Publication No. 1-24711
Then, because the allocation is restricted by the elevator car load, the prediction for the near future is delayed, and
However, there is a problem that the configuration system becomes complicated because the remaining transportation load must be checked for all floors.

The present invention solves the above problems,
An object of the present invention is to provide an elevator control device that solves the deterioration of service on the intermediate floor when there is heavy traffic in the descending direction.

[0005]

An elevator control apparatus according to the present invention is based on an allocation evaluation value calculating means for calculating an allocation evaluation value according to a situation of a hall call, and based on the allocation evaluation value among a plurality of elevators. A car allocating means for allocating a car, an allocation number measuring means for measuring the number of hall calls assigned to the car by the car allocating means, and a down if the number of hall calls in the descending direction is a predetermined value or more. Down-peak determining means for determining a peak, and when the determination result by the down-peak determining means is down-peak, the allocation of the cars by the allocation number measuring means is limited to a predetermined number of callable responses or more. Allocation restriction means, wherein the car allocation means selects the allocation from the cars other than the cars allocated and restricted by the allocation restriction means. It is intended to assign the car based on the evaluation value.

[0006] Further, an allocation evaluation value calculating means for calculating an allocation evaluation value according to the status of a hall call, a car allocating means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocating means for the car. By the allocation number measuring means for measuring the number of hall calls assigned to the car, downpeak determining means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value,
An allocation evaluation penalty calculating means for calculating an allocation evaluation penalty based on the number of allocations by the allocation number measuring means and a predetermined penalty coefficient when the result determined by the downpeak determining means is downpeak. The car allocation means allocates cars based on the allocation evaluation value and the allocation evaluation penalty.

Further, an allocation evaluation value calculating means for calculating an allocation evaluation value according to the status of a hall call, a car allocating means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocating means for the car. By the allocation number measuring means for measuring the number of hall calls assigned to the car, downpeak determining means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value,
A car lap time calculating means for calculating the car lap time from the departure floor to the departure floor again, a responsive hall call number calculation means for calculating the responsive hall call number based on the car lap time, and the down When the result determined by the peak determining means is down-peak, an allocation restricting means for restricting the allocation of the cars of which the number of responding hall calls is greater than that of the responding hall call number calculating means is provided. A car is allocated from the cars other than the cars restricted by the allocation restricting means based on the allocation evaluation value.

[0008] Further, an allocation evaluation value calculating means for calculating an allocation evaluation value according to the status of a hall call, a car allocating means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocating means for the car. By the allocation number measuring means for measuring the number of hall calls assigned to the car, downpeak determining means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value,
A car lap time calculating means for calculating the car lap time from the departure floor to the departure floor again, an allocation evaluation penalty coefficient setting means for setting an allocation evaluation penalty coefficient based on this car lap time, and the above-mentioned down peak judgment When the result determined by the means is downpeak, an allocation evaluation penalty calculating means for calculating an allocation evaluation penalty based on the allocation evaluation penalty coefficient by the allocation evaluation penalty coefficient setting means and the allocation number by the allocation number measuring means, The car allocation means allocates cars based on the allocation evaluation value and the allocation evaluation penalty.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is an overall configuration diagram showing an entire elevator control device. Reference numeral 101 denotes a car control device (only one unit is shown) configured by a microcomputer (hereinafter referred to as a microcomputer), and a central processing unit (hereinafter referred to as CPU) 101A,
Transmission device 101 for transmitting / receiving data to / from the group management control device
B, storage device 101 for storing programs and data
C, a conversion device 101D for converting input / output signal levels is included, and a drive control device 103 is connected to the conversion device. The car control device 101 is further connected in the same configuration as a predetermined plurality of cars. Reference numeral 102 denotes a group management control device which is also composed of a microcomputer, and similarly has a CPU 1
02A, a transmission device 102B, a storage device 102C, and a conversion device 102D, and a hall button 104 is connected to the conversion device. Car control device 101 and group management control device 10
2 are connected via transmission devices 101B and 102B. FIG. 2 is a detailed configuration diagram of concrete elevator control by the car control device 101 and the group management control device 102 shown in FIG. 1 is a well-known hall button provided on each floor served by an elevator, 2 is well-known hall call registration means, 3 is quota limiting means for limiting hall call assignment depending on the number of available hall calls, and 4 is traffic in the descending direction Is a well-known car allocating means for selecting and allocating the optimum elevator car for servicing a hall call, and 6 is the position of the elevator car and the state of the call. From the above, a well-known allocation evaluation value calculating means for calculating an evaluation value according to a predetermined evaluation formula and deciding a car to be serviced based on the result, 7 is an allocation number measuring means for measuring the number of hall calls to which each elevator car is allocated. , 8 are known car control means, and 9 is a known elevator car. The down-peak determining unit 4 is a unit that determines that the traffic in the descending direction is concentrated and outputs a down-peak determining signal to the allocation limiting unit 3. For example, when the number of hall calls in the descending direction becomes equal to or more than a specified value. Judge as down peak. The allocation number measuring means 7 is a means for measuring the number of hall calls assigned to each elevator car and outputting it to the allocation limiting means 3. The allocation limiting means 3 is the downpeak determining means 4
At the time of down-peaking, the elevator cars whose assigned number measured by the assigned number measuring means 7 is equal to or more than the predetermined number of respondable hall calls, are assigned as restricted elevators, and are output to the car assigning means 5.

Next, the operation will be described with reference to the flow chart shown in FIG. In S51, when the hall button 1 is not pressed, the process ends without doing anything, and when the hall button 1 is pressed, the process proceeds to S52. In S52, the hall call registration means 2 registers the hall call, and the process proceeds to S53. In S53, when the number of hall calls in the descending direction is equal to or more than the specified value, the downpeak determining unit 4 determines that the peak is downpeak and S54.
Otherwise, to S56 otherwise. In S54,
The number of hall calls assigned to each elevator car is measured by the number-of-allocations measuring means 7 to obtain the number of allotments, and the process proceeds to S55. S
At 55, the elevator car having the number of allotted hall calls whose number of allotments is equal to or more than the predetermined number is assigned by the allotment limiting means 3, and the process goes to S56. In S56, each elevator car arrives at the hall where the call is registered from the position of the elevator car, the destination call registered in the elevator car, the hall call assigned to the elevator car, etc. by the assigned evaluation value calculation means 6. The allocation evaluation value obtained by calculating the estimated time required for is calculated, and the process proceeds to S57. S
In 57, the car allocation means 5 outputs the allocation to the elevator car having the smallest allocation evaluation value other than the allocation-restricted elevator car, that is, the optimum elevator car that is the elevator car that is likely to arrive at the landing where the call is registered earliest. , S58. In S58, the elevator car to which the allocation has been output by the car control means 8 is activated to respond to the allocation.

Since the number of hall calls assigned to each elevator car is limited by adopting the above-mentioned configuration, each elevator car starting from the first floor and returning to the first floor again The lap time is reduced and the number of hall calls assigned to each elevator car is limited (the restricted hall calls are assigned to other elevator cars), and the number of times the elevator car is stopped is reduced. Therefore, the car lap time is reduced, the number of elevator car reciprocations per unit time is increased, and the transportation efficiency is improved.

Embodiment 2 FIG. 4 is a block diagram of an elevator controller. 1 is a well-known hall button provided on each floor serviced by an elevator, 2 is well-known hall call registration means, 4 is down-peak determination means for determining that traffic in the descending direction is concentrated,
5 is a well-known car allocating means for selecting and allocating an elevator car most suitable for servicing a hall call, and 6 is a result of calculating an evaluation value from a position of the elevator car and a state of the call by a predetermined evaluation formula. A well-known allocation evaluation value calculating means for deciding a car to be serviced based on the above, 7 is an allocation number measuring means for measuring the number of hall calls to which each elevator car is allocated, 8 is a well-known car control means, and 9 is a well-known elevator. It is a basket. Reference numeral 10 denotes an allocation evaluation penalty calculating means for calculating an allocation evaluation penalty according to the allocation number of the elevator car, and when the downpeak judging means 4 is downpeak, allocation is made according to the allocation number measured by the allocation number measuring means 7. This is a means for calculating an evaluation penalty and outputting it to the car allocating means 5. For example, in the case of downpeak, an allocation evaluation penalty is calculated by multiplying a predetermined allocation evaluation penalty coefficient by the number of allocations, and it is output to the car allocating means 5. To do.

Next, the operation will be described with reference to the flow chart shown in FIG. If the hall button 1 is not pressed in S61, nothing is done, and if the hall button 1 is pressed, the process proceeds to S62. In S62, the hall call registration means 2 registers the hall call, and the process proceeds to S63. S63
Then, when the number of hall calls in the descending direction is equal to or larger than the specified value, the down-peak determining unit 4 determines that the peak is down-peak and S6.
4; otherwise, proceed to S66. In S64, the number of hall calls assigned to each elevator car is measured by the number-of-allocations measuring unit 7 to obtain the number of allotments, and the process proceeds to S65. In 65, by the allocation evaluation penalty calculating means 10,
It is a value that is added to the allocation evaluation value to make it difficult to allocate,
An allocation evaluation penalty is calculated by multiplying a predetermined allocation evaluation penalty coefficient by the number of allocations. That is, for each elevator car, the allocation evaluation penalty = allocation evaluation penalty coefficient x number of allocations. Next, in S66, from the position of the elevator car, the destination call registered in the elevator car, the hall call assigned to the elevator car, and the like by the assigned evaluation value calculation means 6, each elevator car is placed in the hall where the call is registered. Calculates the allocation evaluation value that calculates the estimated time required to arrive, and proceeds to S67. In S67, the car allocating means 5 causes each elevator car to
The allocation evaluation value calculated in 66 and the allocation evaluation penalty calculated in S65 are added, the hall call is allocated to the elevator car having the smallest value, and the flow proceeds to S68. In S68, the elevator car to which the allocation is output by the car control means 8 is activated to make the allocation respond.

As described above, it is possible to make it difficult to allocate a new hall call according to the number of hall calls assigned. Therefore, hall calls can be evenly assigned to each elevator car, and it is possible to prevent passengers on the intermediate floor from being unable to get on board because the assignments are concentrated on the specific elevator cars.

Embodiment 3 FIG. 6 is a block diagram of an elevator controller. 1 is a well-known hall button provided on each floor served by an elevator, 2 is well-known hall call registration means, 3 is allocation limiting means for limiting hall call allocation according to the number of available hall calls, 4
Is a down-peak determining means for determining that the traffic in the descending direction is concentrated, 5 is a well-known car allocating means for selecting and allocating an elevator car most suitable for servicing a hall call, and 6 is an elevator car A well-known allocation evaluation value calculating means for calculating an evaluation value from a position or a state of a call by a predetermined evaluation expression and determining a car to be serviced based on the result, 7 is a number of hall calls to which each elevator car is allocated Is a well-known car control means, and 9 is a well-known elevator car. Reference numeral 11 is a responseable hall call number calculation means for learning the orbiting time of the elevator car and calculating an optimal response hall call number. 12 is the elevator car operation control result, starting from the first floor and returning to the first floor again. It is a car orbit time calculating means for actually measuring the time to arrive. Responsive hall call number calculation means 11 is means for learning the car lap time obtained in the car lap time calculation time 12 and calculating the optimum responsive hall call number. For example, the average lap time for a certain past time is registered. When it is larger than the possible floor decrease reference value, the number of registrable hall calls is reduced, and when it is smaller than the registrable floor increase reference value, the number of registrable hall calls is increased. The allocation restricting means 3 is an elevator car which is downpeaked by the downpeak determining means 4 and the allocation number measured by the allocation number measuring means 7 is equal to or larger than the responseable hall call number calculated by the response hall call number calculating means 11. Is assigned to an elevator car and output to the car allocating means 5.

Next, the operation will be described with reference to the flow chart shown in FIG. In S71, the car orbit time is calculated by the car orbit time calculating means 12, and the process proceeds to S72.
In S72, the responsive car hall call number calculation means 11 learns the car orbit time, and calculates the responsive car hall call number,
Proceed to S73. If the hall button 1 is not pressed in S73, the process ends without doing anything, and if the hall button 1 is pressed, the process proceeds to S74. In S74, the hall call registration means 2 registers the hall call, and the process proceeds to S75. In S75, when the number of hall calls in the descending direction is equal to or more than the specified value by the downpeak determination means 4, it is determined to be downpeak, and the process proceeds to S76.
Otherwise, proceed to S78. In S76, the number of hall calls assigned to each elevator car is measured by the number-of-allocation-measuring unit 7 to obtain the number of calls, and the process proceeds to S77. In S77,
The allocation restricting means 3 determines that the elevator cars whose allocation number measured by the allocation number measuring means 7 is equal to or larger than the number of responsive hall calls obtained in S72 are allocated, and the process proceeds to S78. S78
Then, the allocation evaluation value calculating means 6 calculates the allocation evaluation value, and the process proceeds to S79. In S79, the car allocating means 5 outputs the allocation to the car with the optimum allocation evaluation value other than the allocation-limited car, and the process proceeds to S80. In S80, the elevator car to which the allocation is output by the car control means 8 is activated to make the allocation respond.

By adopting the above-mentioned form, it is possible to use the optimally settable registerable hall call number,
Transport efficiency is improved.

Embodiment 4 FIG. 8 is a block diagram of an elevator controller. 1 is a well-known landing hall button, 2 is a well-known hall call registration means, 10 is an allocation evaluation penalty calculating means for calculating an allocation evaluation penalty according to the number of elevator car allocations, and 13 is an optimal one by learning the orbiting time of the elevator car. Allocation evaluation penalty coefficient setting means for setting an allocation evaluation penalty coefficient, 4 is down-peak determination means for determining that traffic in the descending direction is concentrated, and 5 is an elevator car most suitable for servicing landing calls. A well-known car allocating means for selecting and allocating, 6 is a well-known allocating evaluation calculating means, 12 is a car circling time calculating means for calculating the car lap time from the operation control result of the elevator car, and 7 is each elevator car Allocation number measuring means for measuring the number of hall calls, 8 is a well-known car control means, and 9 is a well-known elevator car. The allocation evaluation penalty coefficient setting means 13 learns the car lap time calculated in 12 and sets the optimum allocation evaluation penalty coefficient. The allocation evaluation penalty calculating means 10 calculates an allocation evaluation penalty according to the number of allocations measured by the allocation number measuring means 7 and the allocation evaluation penalty coefficient set by the allocation evaluation penalty coefficient setting means 13 when there is a down peak, and the car is allocated. Output to the means 5. For example, at the time of down-peak, the allocation evaluation penalty coefficient set by the allocation evaluation penalty coefficient setting means 13 is multiplied by the number of allocations to obtain the allocation evaluation penalty, and output to the car allocation means 5.

Next, the operation will be described with reference to the flow chart shown in FIG. In S81, the car orbit time is calculated by the car orbit time calculation means 12, and the process proceeds to S82. In S82, allocation evaluation penalty coefficient setting means 1
The car lap time is learned by 3 and the allocation evaluation penalty coefficient is set. For example, the average lap time of the past fixed time is multiplied by a certain coefficient to obtain the allocation evaluation penalty coefficient. As the average lap time increases, the allocation evaluation penalty coefficient increases, making it difficult to allocate elevator cars with a large number of allocations. Then, the process proceeds to S83. In S83, when the hall button 1 is not pressed, the process ends without doing anything, and when the hall button 1 is pressed, the process proceeds to S84. In S84, the hall call registration means 2 registers the hall call, and the process proceeds to S85. In S85, when the down-peak determination means 4 determines that the number of hall calls in the descending direction is equal to or more than the specified value, it is determined to be down-peak and the process proceeds to S86, otherwise the process proceeds to S88. S
At 86, the number of hall calls assigned to each elevator car is measured by the assigned number measuring means 7 to obtain the assigned number, and the process proceeds to S87. In S87, the allocation evaluation penalty calculating means 10 calculates the allocation evaluation penalty by multiplying the allocation evaluation penalty coefficient set in S82 by the number of allocations, and proceeds to S88. In S88, the allocation evaluation value calculation means 6 calculates the allocation evaluation value, and the process proceeds to S89. In S89, the car allocation means 5 outputs the allocation to the optimum elevator car according to the allocation evaluation value and the allocation penalty, and the process proceeds to S90. S90
Then, the elevator car to which the allocation is output by the car control means 8 is activated to make the allocation respond.

By adopting the above configuration, the evaluation penalty set optimally can be used, and the transportation efficiency is further improved.

[0022]

The elevator control device according to the present invention, the allocation evaluation value calculating means for calculating the allocation evaluation value according to the situation of the hall call, and the elevator based on the allocation evaluation value from among the plurality of elevators. A car allocating means,
Allocation number measuring means for measuring the number of hall calls assigned to the car by the car allocating means, and downpeak determination means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value. And an allocation limiting means for restricting the allocation of the cars whose allocation number by the allocation number measuring means is equal to or more than a predetermined number of callable calls when the determination result by the downpeak determining means is downpeak, Since the car allocating means allocates the car from the cars other than the cars restricted by the allocation restricting means based on the above allocation evaluation value, the car circling time can be reduced and the transportation efficiency can be improved. .

Also, an allocation evaluation value calculation means for calculating an allocation evaluation value according to the status of a hall call, a car allocation means for allocating a car from a plurality of elevators based on the allocation evaluation value, and a car allocation means. By the allocation number measuring means for measuring the number of hall calls assigned to the car, downpeak determining means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value,
An allocation evaluation penalty calculating means for calculating an allocation evaluation penalty based on the number of allocations by the allocation number measuring means and a predetermined penalty coefficient when the result determined by the downpeak determining means is downpeak. , The car allocating means allocates cars based on the above-mentioned allocation evaluation value and the above-mentioned allocation evaluation penalty, so that hall calls can be evenly allocated to each car, and the allocation is concentrated on a specific car so that passengers on the middle floor can be allocated. You can prevent you from getting stuck.

Also, an allocation evaluation value calculating means for calculating an allocation evaluation value according to the status of a hall call, a car allocating means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocating means for the car. By the allocation number measuring means for measuring the number of hall calls assigned to the car, downpeak determining means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value,
A car lap time calculating means for calculating the car lap time from the departure floor to the departure floor again, a responsive hall call number calculation means for calculating the responsive hall call number based on the car lap time, and the down When the result determined by the peak determining means is down-peak, an allocation restricting means for restricting the allocation of the cars of which the number of responding hall calls is greater than that of the responding hall call number calculating means is provided. Since the cars are allocated from the cars other than the cars restricted by the allocation restricting means based on the allocation evaluation value, the lap time of the cars can be further reduced, and the transportation efficiency can be further improved.

Also, an allocation evaluation value calculating means for calculating an allocation evaluation value according to the status of a hall call, a car allocating means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocating means for the car. By the allocation number measuring means for measuring the number of hall calls assigned to the car, downpeak determining means for determining downpeak if the number of hall calls in the descending direction is equal to or more than a predetermined value,
A car lap time calculating means for calculating the car lap time from the departure floor to the departure floor again, an allocation evaluation penalty coefficient setting means for setting an allocation evaluation penalty coefficient based on this car lap time, and the above-mentioned down peak judgment When the result determined by the means is downpeak, an allocation evaluation penalty calculating means for calculating an allocation evaluation penalty based on the allocation evaluation penalty coefficient by the allocation evaluation penalty coefficient setting means and the allocation number by the allocation number measuring means, Since the car allocating means allocates the cars based on the allocation evaluation value and the allocation evaluation penalty, it is possible to better prevent the allocation of the cars from being concentrated on the specific car and the passengers on the intermediate floor from being unable to board.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a control device for an elevator according to the present invention.

FIG. 2 is a configuration diagram of an elevator control device according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 4 is a configuration diagram of an elevator control device according to a second embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 6 is a configuration diagram of an elevator control device according to a third embodiment of the present invention.

FIG. 7 is a flowchart showing an operation according to the third embodiment of the present invention.

FIG. 8 is a configuration diagram of a control device for an elevator according to a fourth embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of the fourth embodiment of the present invention.

[Explanation of symbols]

1 hall button, 2 hall call registration means, 3 quota limiting means, 4 downpeak determining means, 5 car allocating means, 6
Allocation evaluation value calculation means, 7 Allocation number measurement means, 8 car control means, 9 elevator car, 10 allocation evaluation penalty calculation means, 11 respondable hall call number calculation means, 1
2 car orbit time calculating means, 13 allocation evaluation penalty coefficient setting means.

Claims (4)

[Claims] 1. An allocation evaluation value calculating means for calculating an allocation evaluation value according to the status of a hall call, a car allocating means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocating means for the car. The number-of-allocations measuring means for measuring the number of hall calls assigned to the car by the above, and the down-peak determining means for determining the down-peak if the number of hall calls in the descending direction is a predetermined value or more, and the down-peak When the determination result by the determination means is down-peak, the allocation allocation means for restricting the allocation of the cars whose allocation number by the allocation number measuring means is equal to or more than the predetermined number of respondable calls is provided. A car is assigned from the cars other than the cars restricted by the allocation restricting means based on the allocation evaluation value. Control device of revator. 2. An allocation evaluation value calculation means for calculating an allocation evaluation value according to the status of a hall call, a car allocation means for allocating a car among a plurality of elevators based on the allocation evaluation value, and a car allocation means. The number-of-allocations measuring means for measuring the number of hall calls assigned to the car by the above, and the down-peak determining means for determining the down-peak if the number of hall calls in the descending direction is a predetermined value or more, and the down-peak When the result determined by the determination means is down-peak, an allocation evaluation penalty calculating means for calculating an allocation evaluation penalty based on the number of allocations by the allocation number measuring means and a predetermined penalty coefficient is provided. An elevator characterized in that the allocating means allocates cars based on the allocation evaluation value and the allocation evaluation penalty. Control device. 3. An allocation evaluation value calculation means for calculating an allocation evaluation value according to the status of a hall call, a car allocation means for allocating a car from a plurality of elevators based on the allocation evaluation value, and a car allocation means. The number of hall calls assigned to the car according to the above, the number of assigned hall counting means that determines if the number of hall calls in the descending direction is greater than or equal to a predetermined value, and the downpeak determination means. Car orbit time calculating means for calculating the car orbit time from the first floor to returning to the departure floor again, respondable hall call number calculating means for calculating the respondable hall call number based on the car orbit time, and the down peak determining means Allocation that restricts the allocation of cars that are equal to or larger than the number of responsive hall calls by the above-mentioned responsive hall call number calculation means when the result determined by A restriction means, wherein the car allocation means allocates a car from cars other than the cars restricted by the allocation restriction device based on the allocation evaluation value. 4. An allocation evaluation value calculation means for calculating an allocation evaluation value according to the status of a hall call, a car allocation means for allocating a car from a plurality of elevators based on the allocation evaluation value, and a car allocation means. The number of hall calls assigned to the car according to the above, the number of assigned hall counting means that determines if the number of hall calls in the descending direction is greater than or equal to a predetermined value, and the downpeak determination means. A car lap time calculating means for calculating the car lap time from returning from the floor to the departure floor again, an allocation evaluation penalty coefficient setting means for setting an allocation evaluation penalty coefficient based on this car lap time, and a judgment made by the downpeak judging means When the determined result is down-peak, the allocation evaluation penalty coefficient and allocation number measuring means by the above-mentioned allocation evaluation penalty coefficient setting means. An allocation evaluation penalty calculating means for calculating an allocation evaluation penalty based on the number of allocations by stages, wherein the car allocation means allocates a car based on the allocation evaluation value and the allocation evaluation penalty. Control device.