Elevator group management device and elevator group management method

Abstract

To provide an elevator group management device which, when allocating an elevator to be used from among a plurality of elevators to an elevator user, allocates an elevator that is easy for the user to use, taking into consideration the degree of intimacy with other users.SOLUTION: When an elevator group control device acquires attribute information of a user who uses one of a plurality of elevators, it determines an elevator to be assigned to the user, and stores the acquired attribute information and identification information of the elevator whose assignment has been determined as assignment information until the car of the elevator whose assignment has been determined departs from the floor. When the elevator group control device acquires attribute information of a second user while storing the assignment information of a first user, it calculates the intimacy between the users based on the attribute information of the first and second users, and determines an elevator to be assigned to the second user based on the calculated intimacy.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 an elevator system that manages a group of multiple elevators, a hall destination floor registration device may be installed at an elevator hall in a building so that a user can specify a destination floor and perform a hall call operation. In such an elevator system, each time a user performs an operation to specify a destination floor using the hall destination floor registration device, an elevator to be used is assigned to the user who performed the operation, and the identification information of the assigned elevator is notified to the user.

[0003] When managing multiple elevators as a group, the elevators can be operated efficiently by assigning the same elevator to multiple users who have similar elevator usage patterns, such as those traveling to the same destination floor. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-40504 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, there are cases where it is preferable to assign the same elevator to multiple users and have them ride together, but there are also cases where it is preferable to avoid people who have similar elevator usage patterns from riding in the same car depending on the relationship between the users, such as people from the same industry, people of different genders, etc. Therefore, there has been a demand for a technology that assigns elevators in a way that is easy for each user to use, taking into account the degree of intimacy between the users.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide an elevator group management device and elevator group management method that are capable of performing allocation processing taking into consideration the intimacy between elevator users and other users when allocating an elevator to be used from among a plurality of elevators to an elevator user. [Means for solving the problem]

[0007] According to an embodiment for achieving the above object, an elevator group control device, upon acquiring attribute information of a user who uses one of a plurality of elevators, determines an elevator to be assigned to the user, and stores the acquired attribute information and identification information of the elevator for which the assignment has been determined as assignment information until the car of the elevator for which the assignment has been determined departs from the floor in question. When the elevator group control device acquires attribute information of a second user while storing the assignment information of a first user, it calculates an intimacy between the users based on the attribute information of the first and second users, and determines an elevator to be assigned to the second user based on the calculated intimacy. [Brief description of the drawings]

[0008] [Figure 1] 1 is an overall view showing a configuration of an elevator system using an elevator group control device according to an embodiment. [Diagram 2] 1 is a flowchart showing a process executed by an elevator group control device according to an embodiment when the elevator group control device acquires attribute information of a user from a hall device. [Diagram 3] 1 is a flowchart showing an allocation determination process executed by an allocation determination unit of an elevator group management device according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, as one embodiment of the present invention, a process executed by an elevator group control device that controls a group of a plurality of elevators, in which an elevator is assigned to be used by users based on the intimacy between the users, will be described.

[0010] Configuration of an elevator system using an elevator group control device according to an embodiment 1 is an overall view showing the configuration of an elevator system 1 using an elevator group control device (hereinafter referred to as the "group control device") according to one embodiment. The elevator system 1 includes a first elevator 10, a second elevator 20, and a third elevator 30 installed in a building, a hall device 40 installed in an elevator hall 2 on a predetermined floor in the building, for example, the first floor where the entrance is located, and a group control device 50. In this embodiment, a case will be described in which the elevator system 1 has three elevators, but the number is not limited to this, and may be two or four or more.

[0011] The first elevator 10 has a hoist 11 set in the hoistway 3, a rope 12 hung from the hoist 11, a car 13 suspended from one end of the rope 12, a first control panel 14, and a tail cord 15 connecting the car 13 and the first control panel 14.

[0012] The car 13 has a car door 131 and a load detection device 132. The load detection device 132 detects the amount of load applied to the floor surface of the car 13. The first control panel 14 controls the equipment in the first elevator 10, such as the hoist 11, based on information acquired from the group management device 50. The first control panel 14 also acquires operation status information of the first elevator 10 and the amount of load applied to the car 13 from the load detection device 132 via the tail code 15 at predetermined time intervals, and transmits the information to the group management device 50.

[0013] The second elevator 20 and the third elevator 30 have a similar configuration to the first elevator 10, so detailed explanations will be omitted.

[0014] The hall device 40 has a reading unit 41, a notification unit 42, and a gate unit 43. The reading unit 41 reads the attribute information of a user who uses any of the first elevator 10, the second elevator 20, or the third elevator 30 from a medium, such as an IC card or a mobile terminal, that holds the attribute information of the user, using short-range wireless communication or the like, and transmits the user attribute information to the group management device 50. The IC card or mobile terminal of the user may be configured using an RFID tag that holds the attribute information of the user, and the reading unit 41 may be configured as a tag reader that reads the RFID tag, so that the reading unit 41 reads the attribute information of the user.

[0015] The notification unit 42 is composed of, for example, a display device, and outputs the elevator identification information assigned to the user by the group control device 50 based on the user's attribute information read by the reading unit 41, to notify the user.

[0016] The gate unit 43 has a door (not shown) that opens and closes to restrict the entry of users into the elevator hall 2. The gate unit 43 maintains the door in a closed state as an initial state, and when the group control device 50 authenticates that the user is a user who can use the first elevator 10, the second elevator 20, or the third elevator 30 based on the attribute information of the user read by the reading unit 41, the gate unit 43 temporarily opens the door.

[0017] The group control device 50 has a storage unit 51 and a CPU 52. The storage unit 51 has an elevator information storage unit 511, a user information storage unit 512, an allocation information storage unit 513, and a time zone information storage unit 514.

[0018] The elevator information storage unit 511 stores, as elevator information, information on the installation locations of the first elevator 10, the second elevator 20, and the third elevator 30, information on the distance from the hall device 40 to each of the first elevator 10, the second elevator 20, and the third elevator 30, and information on the time it takes for a user to walk from the hall device 40 to each of the first elevator 10, the second elevator 20, and the third elevator 30.

[0019] The user information storage unit 512 stores therein identification information of users who are preset as users who can use the first elevator 10, the second elevator 20, or the third elevator 30.

[0020] The allocation information storage unit 513 stores allocation information generated by the CPU 52 as described below, linking attribute information of a user who performed a hall call operation at the hall device 40 with identification information of an elevator whose allocation to this user has been determined, until the car of this determined elevator departs from the floor where the hall call operation was performed.

[0021] The time period information storage unit 514 stores information on time periods when the first elevator 10, the second elevator 20, or the third elevator 30 is likely to be used by a plurality of users whose intimacy level is equal to or higher than a predetermined threshold value.

[0022] The CPU 52 includes an operation control unit 521 , a user information acquisition unit 522 , an authentication unit 523 , an allocation determination unit 524 , and an output unit 525 .

[0023] The operation control unit 521 controls the first elevator 10, the second elevator 20, and the third elevator 30 based on operation status information of the first elevator 10 obtained from the first control panel 14, operation status information of the second elevator 20 obtained from the second control panel 24, operation status information of the third elevator 30 obtained from the third control panel 34, and identification information of the elevators assigned to users by the allocation determination unit 524 as described below.

[0024] The user information acquisition unit 522 acquires the attribute information of the user transmitted from the hall device 40. When the attribute information acquired by the user information acquisition unit 522 is included in the identification information stored in the user information storage unit 512, the authentication unit 523 authenticates the user corresponding to this attribute information as a user who can use the first elevator 10, the second elevator 20, and the third elevator 30.

[0025] The allocation determination unit 524 determines an elevator to be allocated to a user authenticated by the authentication unit 523 from among the first elevator 10, the second elevator 20, and the third elevator 30. The allocation determination unit 524 generates allocation information linking attribute information of the authenticated user with identification information of the elevator determined to be allocated to the user, and stores the allocation information in the allocation information storage unit 513.

[0026] The output unit 525 outputs, to the hall device 40, the authentication result by the authentication unit 523 and the identification information of the elevator whose allocation has been determined by the allocation determination unit 524.

[0027] Operation of an Elevator System According to an Embodiment The operation of the elevator system 1 according to this embodiment will be described. In this embodiment, the user information storage unit 512 stores in advance the identification information of the first user X1 and the second user X2 as users who can use the first elevator 10, the second elevator 20, and the third elevator 30.

[0028] In addition, the operation control unit 521 acquires operation status information of the first elevator 10 and the load weight of the car 13 from the first control panel 14 at predetermined time intervals, acquires operation status information of the second elevator 20 and the load weight of the car 23 from the second control panel 24 at predetermined time intervals, and acquires operation status information of the third elevator 30 and the load weight of the car 33 from the third control panel 34 at predetermined time intervals.

[0029] In addition, the operation control unit 521 calculates the time when the car 13, 23, or 33 will close its door next and depart after it has landed on the first floor and opened its door. For example, the operation control unit 521 calculates the time when a predetermined time has elapsed since the boarding time of the first user who got into the car 13, 23, or 33 as the time when this car will close its door next and depart (hereinafter referred to as the departure time).

[0030] When a first user X1 who uses either the first elevator 10, the second elevator 20, or the third elevator 30 from the first floor holds the user's IC card Y1 over the reading unit 41 of the hall device 40 to enter the elevator hall 2 and make a hall call, the reading unit 41 reads the attribute information of the first user X1 stored in the IC card Y1 using short-range wireless communication or the like. The attribute information of the first user X1 includes, for example, the identification information of the first user X1, the name of the organization to which the user belongs, gender, age, destination floor information, etc. The reading unit 41 transmits the read attribute information of the first user X1 to the group management device 50.

[0031] FIG. 2 is a flowchart showing the process executed by the group control device 50 when the group control device 50 acquires attribute information of a user from the hall device 40. As shown in FIG.

[0032] In the group management device 50, the user information acquisition unit 522 of the CPU 52 acquires the attribute information of the first user X1 transmitted from the hall device 40 ("YES" in S1). When the user information acquisition unit 522 acquires the attribute information of the first user X1, the authentication unit 523 determines, based on the information stored in the user information storage unit 512, whether or not the first user X1 is a user who has been preset as a user who can use the first elevator 10, the second elevator 20, or the third elevator 30.

[0033] Here, since the identification information of the first user X1 is stored in the user information memory unit 512, the authentication unit 523 authenticates that the first user X1 is a user who can use the first elevator 10, the second elevator 20, or the third elevator 30 ("YES" in S2).

[0034] When the authentication unit 523 authenticates that the first user X1 is a user who can use the first elevator 10, the second elevator 20, or the third elevator 30, the allocation determination unit 524 executes an allocation determination process to determine which elevator to allocate to the first user X1 for use from among the first elevator 10, the second elevator 20, and the third elevator 30 (S3).

[0035] 3 is a flowchart showing the allocation determination process executed by the allocation determination unit 524. The allocation determination unit 524 first determines whether there is any allocation information stored in the allocation information storage unit 513, that is, whether there is an elevator that has been allocated to any user and whose car is in a pre-departure state from the departure floor corresponding to this allocation (S31).

[0036] Here, the allocation determination unit 524 determines that there is no allocation information stored in the allocation information storage unit 513 ("NO" in S31), and performs a normal allocation determination process for the first user X1 (S32). In the normal allocation determination process, for example, the elevator to be allocated to the first user X1 is determined according to the operation status of the first elevator 10, the second elevator 20, and the third elevator 30, the congestion status of the cars 13, 23, and 33, the destination floor of the first user X1, etc., so that the first user X1 can arrive at the destination floor as quickly as possible while the elevators 10, 20, and 30 are operated efficiently.

[0037] The allocation determination unit 524 determines to allocate, for example, the first elevator 10 to the first user X1, associates the attribute information of the first user X1 with the identification information of the first elevator 10, and stores the association information as allocation information in the allocation information storage unit 513. This ends the allocation determination process for the first user X1.

[0038] When the allocation determination process for the first user X1 is completed, returning to Fig. 2, the output unit 525 outputs the authentication result by the authentication unit 523 and information on the assigned elevator "first elevator 10" to the hall device 40 (S4). In the hall device 40, the door of the gate unit 43 is temporarily opened in response to the authentication result obtained from the group control device 50, and information on the assigned elevator "first elevator 10" is output from the notification unit 42.

[0039] The first user X1 recognizes the information about the assigned elevator output from the notification unit 42, enters the elevator hall 2 through the gate unit 43 that is now in the open state, and gets into the car 13 of the first elevator 10.

[0040] Then, before the departure of the first elevator 10, the second user X2 holds an IC card Y2, which is a medium that holds the user's attribute information, over the reading unit 41 of the hall device 40, and the reading unit 41 reads the attribute information of the second user X2 and transmits it to the group management device 50.

[0041] In the group management device 50, the user information acquisition unit 522 acquires the attribute information of the second user X2 transmitted from the hall device 40 ("YES" in S1), and the authentication unit 523 certifies that the second user X2 is a user who can use the first elevator 10, the second elevator 20, or the third elevator 30 ("YES" in S2).

[0042] When the authentication unit 523 authenticates that the second user X2 is a user who can use the first elevator 10, the second elevator 20, or the third elevator 30, the allocation determination unit 524 executes an allocation determination process to determine which elevator to allocate to the second user X2 (S3).

[0043] The allocation determination unit 524 first determines whether or not there is any allocation information stored in the allocation information storage unit 513 (S31). Here, the allocation information storage unit 513 stores allocation information that allocates the first elevator 10 to the first user X1, and the allocation determination unit 524 determines that there is any stored allocation information ("YES" in S31).

[0044] Next, the allocation determination unit 524 determines, based on the stored allocation information, whether or not there is an elevator among the allocated elevators whose car departure time is longer than the time it takes for the second user X2 to board (S33).

[0045] Specifically, the allocation determination unit 524 first calculates the time from the current time to the next departure time of the car 13 calculated by the operation control unit 521. The allocation determination unit 524 also calculates the time from when the second user X2 starts moving from the hall device 40 to when he / she gets into the car 13 of the first elevator 10 corresponding to the allocation information stored in the allocation information storage unit 513, based on the information stored in the elevator information storage unit 511. The allocation determination unit 524 then compares the calculated time until the next departure time of the car 13 with the time until when the second user X2 gets into the car 13.

[0046] Here, the allocation determination unit 524 determines that the calculated time until the next departure time of the car 13 is longer than the time until the second user X2 boards the car 13. In other words, the allocation determination unit 524 determines that, among the already-allocated elevators, the first elevator 10 is an elevator whose time until the departure time of the car is longer than the time until the second user X2 boards the car ("YES" in S33).

[0047] In this case, the elevator that has been assigned is the first elevator 10, but if multiple elevators have been assigned, it is determined for each of these multiple elevators whether the time until the departure time of the elevator car is longer than the time it takes for the second user X2 to board.

[0048] When the allocation determination unit 524 determines that there is a first elevator 10 among the allocated elevators whose car departure time is longer than the time it takes for the second user X2 to board, it selects this first elevator 10 as a candidate for allocation to the second user X2 who has performed the hall call operation this time (S34).

[0049] Next, the allocation determination unit 524 calculates the intimacy between the first user X1 and the second user X2 based on the attribute information of the second user X2 acquired by the user information acquisition unit 522 and the attribute information of the first user X1 to which the first elevator 10, which is an allocation candidate, is assigned, which is stored in the allocation information storage unit 513.

[0050] The allocation determination unit 524 calculates the degree of intimacy between users based on the evaluation value of the degree of intimacy for each of the preset attribute conditions, for example, the degree of intimacy between users belonging to the same organization is 2.1, the degree of intimacy between family members is 2.5, the degree of intimacy between users belonging to different organizations in the same business is 0.5, etc. The higher the value of this intimacy, the higher the degree of intimacy.

[0051] If the calculated intimacy between the first user X1 and the second user X2 is equal to or lower than a predetermined first threshold value ("YES" in S35), the allocation decision unit 524 decides to allocate an elevator other than the first elevator 10, which is an allocation candidate, for example, the second elevator 20, to the second user X2 (S36).

[0052] The first threshold value is a threshold value for determining whether it is better for the two users being the subject of the judgment process to ride in separate elevators so as not to ride in the same elevator, and the allocation decision unit 524 assigns different elevators to the two users whose intimacy level is calculated to be equal to or lower than the first threshold value.

[0053] In addition, if the calculated intimacy between the first user X1 and the second user X2 exceeds a predetermined first threshold value ("NO" in S35) and is also equal to or greater than the second threshold value ("YES" in S37), the allocation determination unit 524 determines whether the car 13 of the first elevator 10, which is an allocation candidate acquired by the operation control unit 521, is full or not (S38).

[0054] When the allocation determination unit 524 determines that the intimacy between the first user X1 and the second user X2 is equal to or greater than the second threshold value and the car 13 of the first elevator 10 is not full ("NO" in S38), it decides to allocate the first elevator 10, which is a candidate for allocation, to the second user X2 (S39).

[0055] The second threshold is a threshold for determining whether it is better for the two users being the subject of the judgment process to ride in the same elevator, and the allocation determination unit 524 assigns the same elevator to two users whose intimacy level is calculated to be equal to or greater than the second threshold if the two users can ride in the same elevator at the same time.

[0056] In step S33, if it is determined that there is no assigned elevator whose car departure time is longer than the time it takes for the second user X2 to board ("NO" in S33), if the intimacy between the first user X1 and the second user X2 calculated in step S37 exceeds the first threshold value and is less than the second threshold value ("NO" in S37), or if it is determined in step S38 that the car 13 is full ("YES" in S38), the process proceeds to step S32 and a normal assignment determination process is performed for the second user X2 (S32).

[0057] When the allocation determination unit 524 determines an elevator to be allocated to the second user X2 in step S36, S39, or S32, the attribute information of the second user X2 is linked to the identification information of the determined elevator, and the linked information is stored as allocation information in the allocation information storage unit 513. This ends the allocation determination process for the second user X2.

[0058] When the allocation determination process for the second user X2 is completed, the output unit 525 outputs the authentication result by the authentication unit 523 and the assigned car information to the hall device 40 (S4). In the hall device 40, the door of the gate unit 43 is opened in response to the authentication result obtained from the group control device 50, and the assigned car information is output from the notification unit 42.

[0059] The second user X2 recognizes the information about the assigned elevator output from the notification unit 42, enters the elevator hall 2 through the open gate unit 43, and gets into the elevator car of the recognized assigned elevator.

[0060] By the above-mentioned process, when the car 13 in which the first user X1 has boarded departs from the first floor, the allocation determination unit 524 deletes the allocation information related to the first user X1 stored in the allocation information storage unit 513. In addition, when the car in which the second user X2 has boarded is other than the car 13, when the car in which the second user X2 has boarded departs from the first floor, the allocation determination unit 524 deletes the allocation information related to the second user X2 stored in the allocation information storage unit 513.

[0061] According to the above embodiment, the group control device can assign an elevator that is easy to use from among multiple elevators to a user who has specified a destination floor at a landing and performed a landing call operation, according to the degree of intimacy with other users. Specifically, different elevators are assigned to multiple users who have a low degree of intimacy and should share the elevator, and the same elevator is assigned to multiple users who have a high degree of intimacy and who should preferably ride together in the elevator. By performing the assignment process in this manner, users can use the elevators with peace of mind.

[0062] In the above-described embodiment, when the allocation determination unit 524 performs an allocation determination process for a second user X2 whose intimacy with a first user X1 to whom the first elevator 10 has already been assigned is higher than a second threshold, if the first elevator 10 is full and allocation to the second user X2 is not possible, the allocation determination unit 524 may change the allocation of the first user X1 to another elevator, for example the second elevator 20, and may also allocate the second elevator 20 after this change to the second user X2.

[0063] In this case, information that the allocation for the second user X2 has been changed to the second elevator 20 may be output by the output unit 525 of the group control device 50 to the hall device 40, and the hall device 40 may notify the first user X1 by transmitting the information to a mobile terminal carried by the first user X1, for example, using short-range wireless communication.

[0064] By carrying out the allocation change process in this manner, it is possible to carry out a highly convenient allocation determination process for the first user X1 and the second user X2 who have a high degree of intimacy.

[0065] Furthermore, in the above-described embodiment, if, in step S33, there is no assigned elevator whose time until the car departs is longer than the time it takes for the second user X2 to board ("NO" in S33), but there is an elevator whose time until the car departs is shorter than the time it takes for the second user X2 to board and the difference between the time until the car departs and the time it takes for the second user X2 to board is less than a predetermined value, for example, within 5 seconds, then this elevator may be treated as an assignment candidate and the processing from step S34 onwards may be executed.

[0066] In this case, if the intimacy between the first user X1 and the second user X2 is equal to or greater than the second threshold value and the elevator that is the candidate for allocation is allocated to the second user X2 in step S39, the allocation determination unit 524 sends an instruction to delay the departure time of the allocated elevator by a predetermined time to the operation control unit 521. By performing the process in this manner, the elevator can be operated efficiently while allowing users with high intimacy to ride in the same car as much as possible.

[0067] In the above embodiment, in a time period when the first elevator 10, the second elevator 20, and the third elevator 30 are likely to be used by multiple users whose intimacy between users calculated based on their attribute information is equal to or greater than a predetermined third threshold, the allocation determination unit 524 may predict that it will acquire attribute information of other users within a predetermined time period when it acquires attribute information of one of the multiple users, and determine an elevator to be assigned as a target for use by the user whose attribute information has been acquired based on the predicted information. This third threshold is a threshold for determining whether multiple users to be subjected to the determination process are moving toward the same destination floor in the same time period, for example, depending on whether they belong to the same organization.

[0068] In this case, for example, the allocation determination unit 524 calculates a time period during which the first elevator 10, the second elevator 20, and the third elevator 30 are likely to be used by multiple users whose intimacy is equal to or greater than a third threshold value by machine learning the contents of the allocation determination process executed in a predetermined period in the past, and stores information on the calculated time period in advance in the time period information storage unit 514. Then, when the allocation determination unit 524 detects that attribute information of one of the multiple users has been acquired from the hall device 40 at a time corresponding to this time period based on the information stored in the time period information storage unit 514, it determines that another user who has a high intimacy with this user is likely to subsequently use the first elevator 10, the second elevator 20, or the third elevator 30, and allocates an elevator with as many vacant cars as possible.

[0069] By performing the allocation determination process in this manner, the elevators 10, 20, and 30 in the elevator system 1 can be operated more efficiently.

[0070] Although an embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. This novel embodiment can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope and spirit of the invention, and are included in the invention and its equivalents described in the claims. [Explanation of symbols]

[0071] REFERENCE SIGNS LIST 1... elevator system, 2... elevator hall, 3... elevator shaft, 10... first elevator, 11, 21, 31... hoist, 12, 22, 32... rope, 13, 23, 33... car, 14... first control panel, 15... tail code, 20... second elevator, 24... second control panel, 30... third elevator, 34... third control panel, 40... hall device, 41... reading unit, 42... notification unit , 43...gate unit, 50...group management device, 51...storage unit, 52...CPU, 131...car door, 132, 232, 332...load detection device, 511...elevator information storage unit, 512...user information storage unit, 513...allocation information storage unit, 514...time period information storage unit, 521...operation control unit, 522...user information acquisition unit, 523...authentication unit, 524...allocation determination unit, 525...output unit

Claims

1. Group management of multiple elevators, a user information acquisition unit that acquires attribute information of a user who uses any one of the plurality of elevators from a predetermined floor; an allocation determination unit that, when the user information acquisition unit acquires the attribute information, determines an elevator to be allocated to be used by the user from among the plurality of elevators; an output unit that outputs identification information of the elevator whose allocation has been determined by the allocation determination unit; an allocation information storage unit that stores the attribute information acquired by the user information acquisition unit and the identification information of the elevator for which the allocation has been determined by the allocation determination unit as allocation information of the user until the elevator car for which the allocation has been determined departs from the floor, when the allocation information storage unit stores allocation information of a first user and the user information acquisition unit newly acquires attribute information of a second user, the allocation determination unit calculates a degree of intimacy between the first user and the second user based on the acquired attribute information of the second user and the attribute information in the allocation information of the first user stored in the allocation information storage unit; When the calculated intimacy between the first user and the second user is equal to or less than a predetermined first threshold, an elevator to be assigned to the second user is determined so that the elevators assigned to the first user and the second user are different from each other; When the calculated intimacy between the first user and the second user is equal to or greater than a second threshold value that is higher than the first threshold value, determining an elevator to be assigned to the second user so that the elevators assigned to the first user and the second user are the same; an elevator group management device that, when the calculated intimacy between the first user and the second user is equal to or greater than the second threshold value and the elevator already assigned for use by the first user is full, changes the assignment of the elevator to be used by the first user to another elevator, and assigns the changed elevator for use by the second user.

2. Group management of multiple elevators, a user information acquisition unit that acquires attribute information of a user who uses any one of the plurality of elevators from a predetermined floor; an allocation determination unit that, when the user information acquisition unit acquires the attribute information, determines an elevator to be allocated to be used by the user from among the plurality of elevators; an output unit that outputs identification information of the elevator whose allocation has been determined by the allocation determination unit; an allocation information storage unit that stores the attribute information acquired by the user information acquisition unit and the identification information of the elevator for which the allocation has been determined by the allocation determination unit as allocation information of the user until the elevator car for which the allocation has been determined departs from the floor, and when the user information acquisition unit acquires new attribute information of a second user while the allocation information storage unit stores allocation information of a first user, the allocation determination unit acquires information on a departure time of the elevator car assigned to be used by the first user, calculates a time until the acquired departure time, and also acquires location information of the elevator assigned to be used by the first user, calculates a time until the second user gets into the elevator car assigned to be used by the first user based on the acquired location information, and if the calculated time until the departure time is longer than the time until the second user gets into the car, calculates a degree of intimacy between the first user and the second user based on the acquired attribute information of the second user and attribute information in the allocation information of the first user stored in the allocation information storage unit, and determines an elevator to be assigned to the second user based on the calculated degree of intimacy.

3. 3. The elevator group management device according to claim 2, wherein when the time until the departure time is shorter than the time until the second user boards the elevator car by a predetermined value or less and the intimacy between the first user and the second user is equal to or greater than a predetermined second threshold, the allocation determination unit assigns the elevator assigned to be used by the first user to be used by the second user, and changes the departure time of the assigned elevator to be later by a predetermined time.

4. Group management of multiple elevators, a user information acquisition unit that acquires attribute information of a user who uses any one of the plurality of elevators from a predetermined floor; an allocation determination unit that, when the user information acquisition unit acquires the attribute information, determines an elevator to be allocated to be used by the user from among the plurality of elevators; an output unit that outputs identification information of the elevator whose allocation has been determined by the allocation determination unit; an allocation information storage unit that stores the attribute information acquired by the user information acquisition unit and the identification information of the elevator for which the allocation determination unit has determined the allocation, as allocation information of the user, until the elevator car for which the allocation has been determined departs from the floor; a time period information storage unit that stores in advance information on a time period during which the elevator is likely to be used by a plurality of users whose intimacy among the users calculated based on the attribute information of the users is equal to or greater than a predetermined third threshold value; when the user information acquisition unit acquires new attribute information of a second user while the allocation information storage unit is storing allocation information of a first user, the allocation determination unit calculates a degree of intimacy between the first user and the second user based on the acquired attribute information of the second user and the attribute information in the allocation information of the first user stored in the allocation information storage unit, and determines an elevator to be allocated to the second user based on the calculated degree of intimacy; When the user information acquisition unit acquires attribute information of one of the multiple users at a time corresponding to a time period stored in the time period information storage unit, the elevator group management device predicts that attribute information of another user among the multiple users will be acquired within a specified time period, and determines, based on the predicted information, an elevator to be assigned as a target for use by the user whose attribute information has been acquired.

5. 2. The elevator group management device according to claim 1, wherein the allocation determination unit assigns the elevator assigned to be used by the first user to be used by the second user when the calculated intimacy between the first user and the second user is equal to or greater than the second threshold value and when the elevator assigned to be used by the first user is not full.

6. Group management of multiple elevators, a user information acquisition unit that acquires attribute information of a user who uses any one of the plurality of elevators from a predetermined floor; an allocation determination unit that, when the user information acquisition unit acquires the attribute information, determines an elevator to be allocated to be used by the user from among the plurality of elevators; an output unit that outputs identification information of the elevator whose allocation has been determined by the allocation determination unit; an allocation information storage unit that stores the attribute information acquired by the user information acquisition unit and the identification information of the elevator for which the allocation has been determined by the allocation determination unit as allocation information of the user until the car of the elevator for which the allocation has been determined departs from the floor, when the allocation information storage unit stores allocation information of a first user and the user information acquisition unit newly acquires attribute information of a second user, calculates a degree of intimacy between the first user and the second user based on the acquired attribute information of the second user and the attribute information in the allocation information of the first user stored in the allocation information storage unit; When the calculated intimacy between the first user and the second user is equal to or less than a predetermined first threshold, an elevator to be assigned to the second user is determined so that the elevators assigned to the first user and the second user are different from each other; When the calculated intimacy between the first user and the second user is equal to or greater than a second threshold value that is higher than the first threshold value, determining an elevator to be assigned to the second user so that the elevators assigned to the first user and the second user are the same; An elevator group management method, in which, when the calculated intimacy between the first user and the second user is equal to or greater than the second threshold value and an elevator already assigned for use by the first user is full, the assignment of the elevator to be used by the first user is changed to another elevator, and the changed elevator is assigned for use by the second user.

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