Elevator group control apparatus and elevator group control method

Abstract

To provide an elevator group management device for efficiently operating elevators while preventing users who confirm the availability status of the elevators by using users' terminals from feeling uncomfortable.SOLUTION: An elevator group management device includes an allocation control part and a switching part. The assignment control unit executes assignment control for a landing call in a predetermined assignment control mode. When the operation information of the plurality of elevators is requested from the user terminal while the assignment control unit is executing the assignment control in the normal assignment mode, if the landing call is generated on the floor where the user is present, the switching unit switches the assignment control mode of the assignment control unit to an operation in which the car passes through the floor where the user is present while traveling in the same direction as the landing call. The mode is switched to a special allocation mode for performing allocation control so as to make the plurality of elevators execute operation for suppressing at least either of the car traveling in the same direction as the landing call toward the story floor where the user exists and operation for reversing the traveling direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] An embodiment of the present invention relates to an elevator group control device and an elevator group control method. [Background technology]

[0002] In elevator operation, in order to minimize waiting times for users at halls and improve service performance, the elevator control device may cause the car to perform a passing operation to pass through a floor where a hall call has occurred, or a reversing operation to reverse the running direction while traveling toward a floor where a hall call has occurred.

[0003] However, if a platform indicator showing the current position and direction of travel of the elevator is installed at the platform, performing the above-mentioned passing or reversing action while a user at the platform is looking at this platform indicator may cause the user to feel uncomfortable.

[0004] For example, when a user who has specified a specific direction and performed a platform call registration operation is looking at the platform indicator, if the elevator travels in the specified direction and passes the floor where the user is located, or if the elevator traveling toward the floor where the user is located reverses its direction of travel midway, the user may feel uneasy that the platform call registration was not performed correctly.

[0005] In view of this, there is a control method that prevents the elevators that have hall indicators installed at the halls from performing the above-mentioned passing and reversing operations. By adopting this method, passengers at the halls will no longer feel uncomfortable when the elevator is operating as described above. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-95549 Summary of the Invention [Problem to be solved by the invention]

[0007] Meanwhile, thanks to recent technological innovations, applications have been developed that allow users to obtain and check elevator operation information on their mobile devices while waiting at the elevator hall. By using these applications, users can check the elevator operation status even at halls that do not have hall indicators.

[0008] However, elevators that do not have landing indicators installed may perform the passing and reversing operations described above, which creates a problem in that users checking the elevator's operating status on their mobile devices may feel uncomfortable with the elevator's operation.

[0009] The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an elevator group control device and an elevator group control method that operate elevators efficiently while preventing users who are checking the elevator operation status using a user terminal from feeling uncomfortable. [Means for solving the problem]

[0010] According to an embodiment for achieving the above object, an elevator group management device includes an allocation control unit and a switching unit. The allocation control unit executes allocation control for hall calls in a predetermined allocation control mode. When operation information of multiple elevators is requested from a user terminal while the allocation control unit is executing allocation control in the normal allocation mode, if a hall call has occurred at a floor where a user is located, the switching unit switches the allocation control mode of the allocation control unit to a special allocation mode that executes allocation control so that the multiple elevators perform operations that suppress at least one of an operation in which a car passes through a floor where a user is located while traveling in the same direction as the hall call, and an operation in which a car traveling in the same direction as the hall call reverses its traveling direction toward a floor where a user is located. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is an overall view showing the configuration of an elevator system using an elevator group control device according to an embodiment. [Figure 2] 10 is a flowchart illustrating a process executed by a determination unit of the elevator group control device according to an embodiment. [Figure 3] 10 is a flowchart illustrating a process executed by a switching unit of the elevator group control device according to an embodiment. [Figure 4] FIG. 10 is an explanatory diagram showing a state in which a car assigned to a hall call changes when an assignment control unit of an elevator group control device according to an embodiment is switched from a normal assignment mode to a special assignment mode. DETAILED DESCRIPTION OF THE INVENTION

[0012] <Configuration of an elevator system using an elevator group control device according to one embodiment> 1 is an overall diagram showing the configuration of an elevator system 1 using an elevator group control device according to this embodiment. The elevator system 1 includes multiple elevators, namely, elevator A 100A, elevator B 100B, and elevator C 100C, an information providing server 30, and an elevator group control device 40 that performs group control of the elevators 100A, 100B, and 100C. In this embodiment, a case will be described in which the elevator group control device 40 performs group control of three elevators, but the present invention is not limited to this and may also perform group control of two or four or more elevators.

[0013] Elevator A 100A includes a hoist 11A installed at the top of a hoistway 10 inside the building, a rope 12A stretched across hoist 11A, a car 13A suspended from one end of rope 12A, and an elevator A control device 14A installed at the top of the hoistway 10. The car 13A and elevator A control device 14A are connected via a tail cord 15A. A destination floor registration device 131A is installed inside elevator 13A.

[0014] The elevator B 100B and the elevator C 100C have the same configuration as the elevator A 100A.

[0015] The elevator system 1 also includes a hall call registration device 21 installed at the hall 20, and a wireless communication device 22. The hall call registration device 21 is connected to the elevator group control device 40 via a signal line 23. The wireless communication device 22 is connected to the information providing server 30 via a signal line 24, and performs wireless communication with user terminals located within a predetermined range, for example, within the hall 20.

[0016] In this embodiment, no device such as a hall indicator that indicates the position information of the cars 13A, 13B, and 13C is installed at the hall 20. Also, although Fig. 1 shows only one hall 20 in the building, halls on other floors can be configured in the same way.

[0017] The elevator system 1 is also communicatively connected to a user terminal 50 carried by a user X who uses the elevator system 1. The user terminal 50 is equipped with an application for transmitting and receiving information to and from the elevator system 1. Using this application, the user terminal 50 communicates with the information providing server 30 via a wireless communication device 22 within the hall 20, and has the following functions: to request operation status information of the elevators 100A, 100B, and 100C from the information providing server 30 based on the operation of the user X; to acquire operation status information transmitted from the information providing server 30 in response to this request; and to display the acquired information.

[0018] The information providing server 30 has a first CPU 31. The first CPU 31 has a request acquisition unit 311 and an information providing unit 312. The request acquisition unit 311 acquires an operation information request transmitted from the user terminal 50, which requests operation status information for the elevators 100A, 100B, and 100C, along with information on the floor where the user terminal 50 is located. The request acquisition unit 311 generates a notification that an operation information request has been received, and transmits the notification to the elevator group control device 40 together with information on the floor where the user terminal 50 is located, i.e., the floor where user X is located.

[0019] When the request acquisition unit 311 acquires an operation information request, the information provision unit 312 acquires the current operation information of elevator A 100A, elevator B 100B, and elevator C 100C from the elevator group control device 40 and provides it to the user terminal 50 that made the request.

[0020] The elevator group control device 40 has a hall call registration unit 41 and a second CPU 42. The hall call registration unit 41 registers hall call information based on a hall call registration operation performed by a user on the hall call registration device 21.

[0021] The second CPU 42 includes a machine information acquisition unit 421, an allocation control unit 422, a determination unit 423, a switching unit 424, and an average non-response time calculation unit 425.

[0022] The elevator information acquisition unit 421 acquires operation information of the elevator A 100A from the elevator A control unit 14A, acquires operation information of the elevator B 100B from the elevator B control unit 14B, and acquires operation information of the elevator C 100C from the elevator C control unit 14C. The allocation control unit 422 executes allocation control in a predetermined allocation control mode to allocate elevators to respond to hall calls registered in the hall call registration unit 41 based on the information acquired by the elevator information acquisition unit 421.

[0023] When the determination unit 423 receives a notification that an operation information request has been made and information on the floor where user X is located from the user terminal 50, it determines whether or not a hall call generated at the floor where user X is located has been registered. If the determination unit 423 determines that a hall call generated at the floor where user X is located has been registered, it sends to the switching unit 424 identification information including information on the floor where this hall call occurred and the destination direction as information for identifying a target of suppressed operation, which will be described later.

[0024] When the switching unit 424 acquires the identification information from the determination unit 423 while the allocation control unit 422 is performing allocation control in the normal allocation mode, which is the normal allocation control mode, the switching unit 424 switches the allocation control mode of the allocation control unit 422 based on the identification information to a special allocation mode in which the elevators 100A, 100B, and 100C perform an operation in which at least one of the following is suppressed: an operation in which the car passes through the floor where user X is located while traveling in the same direction as the destination direction specified in the hall call; and an operation in which the car, traveling in the same direction as the destination direction specified in the hall call, reverses its traveling direction toward the floor where user X is located. In the special allocation mode, either the passing operation or the reversing operation may be suppressed, or both operations may be suppressed.

[0025] Operation that suppresses passing and reversing operations refers to operation that does not perform passing and reversing operations except when certain conditions are met, such as when it is necessary for the elevator to pass or reverse for rescue purposes during a disaster.

[0026] The average unanswered time calculation unit 425 calculates the average unanswered time as the average value of the unanswered time, which is the time from when a hall call is generated until when the elevator 13A, 13B, or 13C assigned to this hall call arrives at the floor where the hall call is generated and opens its doors, within a specified period from the present to the past.

[0027] Operation of an Elevator System According to an Embodiment The operation of the elevator system 1 according to this embodiment will be described. When the elevator system 1 is operating normally, in response to a hall call registered in the hall call registration unit 41, the allocation control unit 422 performs allocation control for the hall call in the normal allocation mode.

[0028] The normal allocation mode is a control mode that prioritizes service performance, and may involve a passing action in which car 13A, 13B, or 13C passes through a floor where a hall call is generated, or a reversal action in which car 13A, 13B, or 13C reverses its running direction while traveling toward a floor where a hall call is generated.

[0029] While the elevator system 1 is in operation, the request acquisition unit 311 constantly monitors whether or not a request for operation information of the elevators 100A, 100B, and 100C has been transmitted from the user terminal of a user at the hall 20.

[0030] User X carries user terminal 50 and enters hall 20, and uses an application installed on user terminal 50 to transmit an operation information request for elevators 100A, 100B, and 100C to information providing server 30. The operation information request transmitted from user terminal 50 is wirelessly transmitted to wireless communication device 22, and then transmitted from wireless communication device 22 to information providing server 30 via signal line 24. In information providing server 30, request acquisition unit 311 acquires the operation information request and information on the floor where user terminal 50 is located, i.e., the floor where user X is located. The information on the floor where user X is located is acquired, for example, based on the location information of wireless communication device 22 used to transmit the operation information request from user terminal 50.

[0031] When the request acquisition unit 311 acquires an operation information request, the information provision unit 312 acquires operation information indicating the operation status of the elevators 100A, 100B, and 100C, including the position information of the cars 13A, 13B, and 13C, from the car number information acquisition unit 421 of the elevator group control device 40, and transmits the operation information to the user terminal 50. Thereafter, the information provision unit 312 acquires operation information from the car number information acquisition unit 421 at predetermined time intervals and transmits the information to the user terminal 50.

[0032] The user terminal 50 displays the acquired operation information of the elevators 100A, 100B, and 100C. The user X visually checks the displayed operation information and confirms the operation status of the elevator system 1.

[0033] Furthermore, upon acquiring the operation information request and the information on the floor where user X is located, the request acquisition unit 311 transmits this information to the elevator group control device 40. In the elevator group control device 40, the determination unit 423 acquires the information transmitted from the information providing server 30.

[0034] 2 shows the process executed by the determination unit 423 when it acquires information from the information providing server. The determination unit 423 executes a process to acquire identification information including information for identifying the target of restrained operation for each floor. As an example, a case will be described in which the determination unit 423 executes a process to acquire identification information for the third floor.

[0035] When the determination unit 423 determines that it has received an operation information request from the user terminal 50 of user X who is on the third floor ("YES" in S1), it checks whether a hall call that occurred on the third floor and has an upward destination floor is registered in the hall call registration unit 41 (S2).

[0036] When the determination unit 423 determines that a hall call that occurred on the third floor and has an upward direction as the destination floor is registered in the hall call registration unit 41 ("YES" in S2), it acquires identification information "3rd floor; upward direction" that includes the floor information "3rd floor" and information indicating the upward direction (S3). This identification information is information for identifying a target of suppressed operation.

[0037] In step S2, when it is determined that a hall call that has occurred on the third floor and has an upward destination floor is not registered in the hall call registration unit 41, the determination unit 423 does not acquire the identification information (S4).

[0038] The determination unit 423 also checks whether or not a hall call that occurred on the third floor and has a destination floor in the downward direction is registered in the hall call registration unit 41 (S5). When the determination unit 423 determines that a hall call that occurred on the third floor and has a destination floor in the downward direction is registered in the hall call registration unit 41 ("YES" in S5), it acquires identification information "3rd floor; downward" that includes floor information "3rd floor" and information indicating a downward direction (S6).

[0039] Furthermore, in step S5, when it is determined that a hall call that occurred on the third floor and has a destination floor in the downward direction is not registered in the hall call registration unit 41, the determination unit 423 does not acquire the identification information (S7).

[0040] Furthermore, when the determination unit 423 determines in step S1 that it has not acquired an operation information request from the user terminal 50 of user X who is on the third floor, it does not acquire identification information for either the upward or downward direction (S8).

[0041] The determination unit 423 also executes the processes of steps S1 to S8 for each floor other than floor 3. Then, if there is identification information acquired in steps S1 to S8 ("YES" in S9), the determination unit 423 sends this identification information to the switching unit 424 (S10).

[0042] 3 shows the processing executed by the switching unit 424. The switching unit 424 executes processing to determine whether or not to execute suppression operation for each floor. As an example, a case will be described in which the switching unit 424 executes processing to determine whether or not to execute suppression operation for the third floor.

[0043] The switching unit 424 checks whether a hall call generated on the third floor and having an upward direction as the destination floor is registered in the hall call registration unit 41 (S11), and if it determines that the corresponding hall call is registered ("YES" in S11), it determines whether identification information for the upward direction of the third floor has been acquired from the determination unit 423 (S12).

[0044] When the switching unit 424 determines that it has acquired identification information for the upward direction of the third floor ("YES" in S12), it decides to cause the elevator car traveling upward toward the third floor to perform restrained operation (S13).

[0045] In step S11, when it is determined that a hall call generated on the third floor with an upward direction as the destination floor has not been registered ("NO" in S11), and when it is determined in step S12 that identification information for the upward direction on the third floor has not been acquired ("NO" in S12), the switching unit 424 does not execute suppression operation.

[0046] The switching unit 424 also checks whether a hall call generated on the third floor with a destination floor in the downward direction is registered in the hall call registration unit 41 (S14), and if it determines that the corresponding hall call is registered ("YES" in S14), it determines whether identification information for the downward direction on the third floor has been acquired from the determination unit 423 (S15).

[0047] When the switching unit 424 determines that it has acquired identification information for the downward direction to the third floor ("YES" in S15), it decides to cause the elevator car traveling downward toward the third floor to perform restrained operation (S16).

[0048] In step S14, when it is determined that a hall call generated on the third floor with a downward destination as the destination floor has not been registered ("NO" in S14), and when it is determined in step S15 that identification information for the downward destination on the third floor has not been acquired ("NO" in S15), the switching unit 424 does not execute suppression operation.

[0049] The switching unit 424 also executes the processing of steps S11 to S16 for each floor other than floor 3. Then, if there is a combination of floor and travel direction for which it has been determined in steps S11 to S16 that suppressed operation should be performed ("YES" in S17), the switching unit 424 switches the allocation control unit 422 to a special allocation mode that controls allocation to hall calls (S18).

[0050] When the allocation control unit 422 is switched to the special allocation mode, it controls allocation to hall calls based on the information on the floor and running direction for which the switching unit 424 has decided to execute suppression operation, so that the elevator car traveling in this running direction and heading toward this floor executes suppression operation that suppresses at least one of the actions of passing through this floor and the actions of reversing the running direction while heading toward this floor.

[0051] In the elevator system 1, the process of steps S1 to S10 by the determination unit 423 and the process of steps S11 to S18 by the switching unit 424 are executed at predetermined time intervals (for example, every few seconds).

[0052] In the above-described embodiment, when the allocation control unit 422 is executing allocation control in the normal operation mode, if a hall call is registered at the hall 20 on a specified floor, and after the allocation process to respond to the hall call is executed, and before the elevator car responds, a user X on this floor performs an operation information request operation using the user terminal 50 and the mode is switched to the special allocation mode, the allocation control unit 422 re-executes the allocation process to the hall call in the special allocation mode.

[0053] FIG. 4 is an explanatory diagram showing a state in which the car assigned to the hall call changes when the assignment control unit 422 is switched from the normal assignment mode to the special assignment mode.

[0054] First, when user X makes a hall call operation at hall 20 on the third floor, the allocation control unit 422 operating in the normal allocation mode prioritizes service performance and allocates car 13C to this hall call as indicated by the triangle mark. At this point, car 13A is traveling upward from the first floor toward the fourth and seventh floors where upward hall calls have occurred as indicated by the circles, and is scheduled to pass by the third floor.

[0055] Thereafter, before the elevator 13C responds to this hall call, when the user X requests operation information using the user terminal 50 on the third floor, the determination unit 423 determines that the operation information request has been acquired from the user terminal 50 of the user X. The determination unit 423 also determines that a hall call that has occurred on the third floor and has an upward direction as the destination floor is registered in the hall call registration unit 41, and acquires the floor information "3rd floor; upward direction" including the information indicating the floor information "3rd floor" and the upward direction, and sends it to the switching unit 424.

[0056] The switching unit 424 determines that a hall call that occurred on the third floor and has an upward destination floor is registered in the hall call registration unit 41, and also determines that identification information for the upward direction of the third floor has been acquired from the determination unit 423.

[0057] When the switching unit 424 determines that it has acquired the identification information for the upward direction of the third floor, it decides to cause the car 13A, which is a car traveling upward toward the third floor, to perform restraining operation.

[0058] As a result of the decision to cause the car 13A to perform suppression operation, the allocation control unit 422 switches from the normal allocation mode to the special allocation mode. When the allocation control unit 422 switches to the special allocation mode, the car to be assigned to an upward hall call generated on the third floor is changed to the car 13A, as indicated by the ▲ mark, in order to operate the car 13A so as not to pass through the third floor, which is the floor where the hall call is generated.

[0059] Alternatively, the allocation control unit 422 may re-execute the allocation process to this hall call in a special allocation mode only when an operation information request operation is performed and the time until the elevator car already allocated to the hall call arrives at the floor where the hall call occurred is greater than a predetermined value.

[0060] Furthermore, in the above-described embodiment, when operation information is requested from the user terminal 50 while the allocation control unit 422 is performing allocation control in the normal allocation mode, if a hall call occurs at the floor where user X is located, the switching unit 424 may switch the allocation control unit 422 to a special allocation mode that performs allocation control so that the elevators 100A, 100B, 100C perform operations that suppress at least one of the following: an operation of the car passing through the floor where user X is located, and an operation of the car reversing the running direction while traveling toward the floor where user X is located within a predetermined distance from the floor where user X is located.

[0061] This makes it possible to further suppress a decrease in the operating efficiency of the elevators 100A, 100B, and 100C due to switching to the special allocation mode.

[0062] Furthermore, in the above-described processing, the switching unit 424 may switch the control by the allocation control unit 422 to the special allocation mode only when the operation information request requests the position information of the cars 13A, 13B, and 13C among the operation information and a hall call is occurring at the floor where the user X is located. In this case, when the switching unit 424 determines that operation information other than the position information of the cars 13A, 13B, and 13C, for example, the congestion status inside the cars 13A, 13B, and 13C, has been requested, the switching unit 424 does not switch to the special allocation mode.

[0063] By controlling in this manner, when there is no possibility that users will be able to see the location information of elevators 13A, 13B, and 13C, control that prioritizes service performance can be continued, thereby avoiding a decrease in convenience for users.

[0064] Furthermore, when there are multiple users at the hall 20, the switching unit 424 may switch the allocation control by the allocation control unit 422 to the special allocation mode when operation information requests are transmitted from user terminals of users at a predetermined rate or a predetermined number of users among the multiple users at the hall 20 and a hall call is generated at the floor where user X is located. By controlling in this way, the elevator system 1 can be operated to provide good convenience to as many users as possible at the hall 20.

[0065] At this time, the switching unit 424 may recognize the number of users at the platform 20 based on the number of user terminals connected to the wireless communication device 22, or may recognize the number of users by analyzing image information captured by a camera device (not shown) installed at the platform 20.

[0066] Furthermore, when the switching unit 424 recognizes that an operation information request has been received, if the average non-response time calculated by the average non-response time calculation unit 425 is equal to or greater than a predetermined value, the switching unit 424 may not switch to the special allocation mode. By controlling in this way, it is possible to avoid a significant decrease in convenience for the user X.

[0067] When the mode is switched to the special allocation mode, the allocation control unit 422 performs allocation control for hall calls in a state in which the elevators 100A, 100B, 100C are made to perform an operation in which at least one of the following is suppressed: the elevator passes through a floor where a hall call is generated and where user X is located; and the elevator reverses its running direction when traveling toward a floor where a hall call is generated and where user X is located.

[0068] When user X performs a hall call operation using the hall call registration device 21 or an application installed on the user terminal 50 while the operation information of elevators 100A and 100B is displayed on the user terminal 50 of user X, the allocation control unit 422 responds to the hall call in a special allocation mode and performs allocation control.

[0069] Thereafter, when the user X performs an operation to terminate use of the application on the user terminal 50, or when the user terminal 50 moves out of the range where it can communicate with the wireless communication device 22, the request acquisition unit 311 recognizes that the request for operation information from the user terminal 50 has ended. When the request acquisition unit 311 recognizes that the request for operation information from the user terminal 50 has ended, the information provision unit 312 stops acquiring the operation information from the elevator group control device 40 and transmitting it to the user terminal 50.

[0070] Furthermore, when the request acquisition unit 311 recognizes that the request for operation information from the user terminal 50 has ended, it notifies the elevator group control device 40. In the elevator group control device 40, the determination unit 423 and the switching unit 424 acquire the notification from the information providing server 30. The determination unit 423 recognizes that the request for operation information from the user terminal 50 has ended based on the acquired notification, and terminates the process of acquiring identification information. Furthermore, the switching unit 424 switches the allocation control by the allocation control unit 422 to control in the normal allocation mode.

[0071] In the above-described embodiment, during a time period in which the number of times that operation information of the elevators 100A, 100B, and 100C has been requested from the user terminal 50 during a past predetermined period is equal to or greater than a predetermined value for each floor, the switching unit 424 may automatically switch the allocation control mode of the allocation control unit 422 to a special allocation mode in which allocation control is performed to cause the elevators 100A, 100B, and 100C to perform operations that suppress at least one of the following: the car passing through that floor and the car reversing its running direction while traveling toward that floor. This makes it possible to avoid inconveniences caused by frequent switching between the normal allocation mode and the special allocation mode in a short period of time during which many users request operation information from their user terminals.

[0072] According to the above embodiment, when there is a user checking the elevator operation status using a user terminal at a hall in a building where multiple elevators are installed, allocation control for hall calls can be performed efficiently while preventing the user from feeling uncomfortable due to the passing or reversing motion of the elevator car.

[0073] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0074] 1...Elevator system, 10...Hoistway, 11A, 11B, 11C...Hoisting machine, 12A, 12B, 12C...Rope, 13A, 13B, 13C...Cab, 14A...Unit A control device, 14B...Unit B control device, 14C...Unit C control device, 15A, 15B, 15C...Tail code, 20...Landing platform, 21...Landing platform call registration device, 22...Wireless communication device, 23, 24...Signal line, 30...Information providing server, 31...First CPU , 40... elevator group control device, 41... hall call registration unit, 42... second CPU, 50... user terminal, 100A... elevator A, 100B... elevator B, 100C... elevator C, 131A, 131B, 131C... destination floor registration device, 311... request acquisition unit, 312... information provision unit, 421... elevator number information acquisition unit, 422... allocation control unit, 423... determination unit, 424... switching unit, 425... average unanswered time calculation unit

Claims

1. Group management of multiple elevators an allocation control unit that executes allocation control in a predetermined allocation control mode to allocate elevators that respond to hall calls generated at halls of the plurality of elevators; and a switching unit that, when the allocation control unit is performing the allocation control in a normal allocation mode that is a normal allocation control mode, and operation information of the plurality of elevators is requested from a user terminal carried by a user at a landing of the plurality of elevators, if a hall call is generated at a floor where the user is located, switches the allocation control mode of the allocation control unit to a special allocation mode that performs allocation control for the plurality of elevators by suppressing at least one of an operation in which a car passes through a floor where the user is located while traveling in the same direction as the destination direction specified in the hall call, and an operation in which a car traveling in the same direction as the destination direction specified in the hall call reverses its traveling direction toward the floor where the user is located.

2. 2. The elevator group management device according to claim 1, wherein, when operation information of the plurality of elevators is requested from a user terminal carried by a user at a landing of the plurality of elevators while the allocation control unit is performing the allocation control in a normal allocation mode that is a normal allocation control mode, if a landing call has occurred at a floor where the user is located, the switching unit switches the allocation control mode of the allocation control unit to a special allocation mode that performs allocation control so that the plurality of elevators execute operations that suppress at least one of an operation of a car passing through a floor where the user is located and an operation of a car traveling toward the floor where the user is located within a predetermined distance from the floor where the user is located and reversing its traveling direction.

3. The switching unit is when elevator car position information is requested from among the operation information of the plurality of elevators and a hall call is generated at the floor where the user is located, switching the control by the allocation control unit to the special allocation mode; 2. The elevator group control device according to claim 1, wherein when operation information other than car position information is requested among the operation information of the plurality of elevators and a hall call has occurred at the floor where the user is located, the elevator group control device does not switch to the special assignment mode.

4. 2. The elevator group control device according to claim 1, wherein the switching unit switches the control by the allocation control unit to the special allocation mode when the operation information is requested from user terminals of a predetermined percentage or a predetermined number of users among the plurality of users at the hall and a hall call is generated at a floor where the users are located.

5. An average unanswered time calculation unit calculates, as an average unanswered time, an average value of an unanswered time, which is a time from when a hall call is generated until when a car assigned to the hall call arrives at the floor where the hall call is generated and opens its door, within a predetermined period from the present to the past, The elevator group control device according to claim 1 , wherein the switching unit does not execute switching to the special assignment mode when the average non-response time is equal to or greater than a predetermined value.

6. 2. The elevator group control device according to claim 1, wherein, after switching the allocation control by the allocation control unit to the special allocation mode, when the switching unit recognizes that the request for the operation information from the user terminal has ended, the switching unit switches the allocation control by the allocation control unit to control in the normal allocation mode.

7. 2. The elevator group control device according to claim 1, wherein, after a hall call is registered at a predetermined floor while the allocation control is being performed in the normal allocation mode and the allocation control unit has performed an allocation process to respond to the hall call, if a user at the floor requests operation information before the response, the allocation control unit switches to the special allocation mode, and then re-executes the allocation process to the hall call in the special allocation mode.

8. 2. The elevator group control device according to claim 1, wherein the switching unit identifies, for each floor, a time period during which the number of times that operation information of the plurality of elevators was requested from user terminals during a predetermined past period was equal to or greater than a predetermined value, and for each floor, during the identified time period, switches the allocation control mode of the allocation control unit to a special allocation mode that performs allocation control so that the plurality of elevators perform operations that suppress at least one of an operation of a car passing through that floor and an operation of a car reversing its running direction while traveling toward that floor.

9. an elevator group control device communicably connected to a plurality of elevators, An elevator group management method, wherein when an allocation control that allocates elevators to respond to hall calls generated at halls of the plurality of elevators is normally being executed in a normal allocation mode, and operation information of the plurality of elevators is requested from a user terminal carried by a user at the hall of the plurality of elevators, if a hall call has occurred at a floor where the user is located, the allocation control is switched to be executed in a special allocation mode in which the plurality of elevators execute operations that suppress at least one of an operation in which a car passes through a floor where the user is located while traveling in the same direction as the destination direction specified in the hall call, and an operation in which a car traveling in the same direction as the destination direction specified in the hall call reverses its traveling direction toward the floor where the user is located.

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