JP2021123443A - Elevator group management device and elevator group management method - Google Patents

Abstract

To provide an elevator group management device and an elevator group management method capable of controlling a plurality of elevators without deteriorating operation efficiency while shortening waiting time for an elevator user as much as possible.SOLUTION: An elevator group management device is connected to a plurality of elevators and includes a callback determination unit and an operation instruction output unit. The callback determination unit acquires information showing that an elevator hall of a specific floor is crowded in a predetermined time zone when a car of one of the plurality of elevators is landed at the specific floor and a door thereof is opened and then determines to call back a car of at least one other elevator to the specific floor when a hall call of the specific floor is registered within the predetermined time after the door of the car is closed and traveling thereof is started. The operation instruction output unit outputs an instruction for moving the corresponding car to the specific floor to an elevator whose car is decided to be called back to the specific floor.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to an elevator group management device and an elevator group management method.

Conventionally, in an elevator installed in an office building or the like, when there is no call registration at a specific time zone, a control is performed in which the car is called back to a preset floor and put on standby. For example, since many users board from the entrance floor (for example, the first floor) of a building during the morning work hours, the elevator car that has not been registered for calling is called back to the entrance floor and put on standby during this time. By performing such control, the user who entered from the entrance floor can use the elevator without waiting time.

Japanese Unexamined Patent Publication No. 2-132081 Japanese Unexamined Patent Publication No. 2007-31110

However, even during the time period when the above-mentioned control is performed, the floor on which the car is recalled may not be crowded and the user may not board from the floor. At this time, if there is a user who wants to board from another floor, there is a problem that the waiting time of the user may become long. Further, in such a case, the car is recalled from the previously abandoned floor to the predetermined floor, and then moved to the registered floor for the hall call, which causes a problem that the operating efficiency of the elevator is lowered. there were.

The present invention has been made in view of the above circumstances, and is an elevator group management device capable of controlling a plurality of elevators so as not to reduce operating efficiency while shortening the waiting time of elevator users as much as possible. The purpose is to provide an elevator group management method.

According to the embodiment for achieving the above object, the elevator group management device is connected to a plurality of elevators and includes a recall determination unit and an operation instruction output unit. The recall judgment unit determines that the elevator hall on a specific floor is congested when one of the elevator cars has landed on a specific floor and opened the door at a predetermined time. If the indicated information is acquired and then the hall call on the specific floor is registered within a predetermined time after the vehicle closes and the vehicle starts running, the vehicle of at least one other elevator is identified. Decide to call back to the floor. The operation instruction output unit outputs an instruction to move the corresponding car to the specific floor to the elevator that has decided to recall the car to the specific floor.

The whole view which shows the structure of the elevator system using the elevator group management apparatus by one Embodiment. The flowchart which shows the operation of the elevator group management apparatus by one Embodiment. (A) and (b) are explanatory views which show the detection state of the user getting on and off by the photoelectric sensor installed in the car door of the car connected to the elevator group management device by one Embodiment.

An embodiment of an elevator system using the elevator group management device of the present invention will be described in detail with reference to the drawings. In this embodiment, the elevator system is used in an office building in which two elevators are installed. These two elevators are set to perform recall operation to recall the car to a specific floor when there is no call registration during the morning commuting time zone, which is a preset time zone (recall operation time zone). ing. In the present embodiment, the specific floor on which the car is recalled by the recall operation is the first floor where the entrance of the building is located.

<Configuration of elevator system using elevator group management device according to one embodiment>
The configuration of the elevator system using the elevator group management device according to the present embodiment will be described with reference to FIG. The elevator system 1 according to the present embodiment includes the first elevator 2-1 and the second elevator 2-2 installed in an n-story building, and the halls installed in the elevator halls 3-1 to 3-n on each floor. Operation panel 31-1 to 31-n, hall speaker device 32-1 to 32-n, first elevator 2-1 and second elevator 2-2, hall operation panel 31-13-1-n, and hall speaker It is provided with a group management device 4 which is communicatively connected to the devices 32-1 to 32-n. In FIG. 1, among the hall operation panels 31-1 to 31-n and the hall speaker device 32-1 to 32-n of the elevator halls 3-1 to 3 to n on each floor, the elevator on the first floor where the entrance of the building is located. Only the hall operation panel 31-1 and the hall speaker device 32-1 installed in the hall 3-1 are shown.

The first elevator 2-1 includes a first car 21-1 that moves up and down in the hoistway 5, and a first elevator control device 25-1. The first car 21-1 has car doors 22-1A and 22-1B, a photoelectric sensor 23-1, and a congestion status determination device 24-1. The photoelectric sensor 23-1 has a floodlight 231-1A installed in the car door 22-1A and a light receiver 231-1B installed in the car door 22-1B, and the car 21- during normal operation. It is used to detect an object between the car doors 22-1A and 22-1B during the opening of the door 1 for the purpose of preventing the car doors from being pinched by the car doors 22-1A and 22-1B. The floodlight 231-1A projects a light ray such as infrared rays when the car doors 22-1A and 22-1B are open. The receiver 231-1B receives the light beam projected from the floodlight 231-1A.

The congestion status determination device 24-1 is installed on the upper part of the first car 21-1, and when the car doors 22-1A and 22-1B are opened in the elevator hall 3, the light is projected from the floodlight 231-1A. The congestion status of the elevator hall 3-1 on the first floor is determined based on the light receiving state of the light receiver 231-1B.

The first elevator control device 25-1 is a result of determining the congestion status of the elevator hall 3 by the congestion status determination device 24-1, and a destination designated by the operation panel (not shown) in the first car 21-1. The operation status information of the equipment in the first elevator 2-1 including the floor information is acquired and transmitted to the group management device 4. Further, the first elevator control device 25-1 operates the devices in the first elevator 2-1 according to the instruction transmitted from the group management device 4.

The second elevator 2-2 has a second car 21-2 and a second elevator control device 25-2. Since the second car 21-2 has the same configuration as the first car 21-1, and the second elevator control device 25-2 has the same configuration as the first elevator control device 25-1. A detailed description will be omitted. Hereinafter, when it is not necessary to specify which of the two elevators 2-1 and 2-2 is, it is described as elevator 2.

The hall operation panel 31-1 to 1-31-n has an operation button for the user to perform a hall call operation, and when the operation button is operated, the information of the hall call of the corresponding floor is sent to the group management device. Send to 4. The hall speaker device 32-1 to 32-n outputs guidance information to the users of the elevator halls 3 to 1-3-n on the corresponding floor based on the instruction from the group management device 4.

The group management device 4 has a call registration unit 41, a congestion status information acquisition unit 42, a recall determination unit 43, and an operation instruction output unit 44. The call registration unit 41 includes information on hall calls operated by the hall operation panel 31-1 to 1-31-n, an operation panel in the first car 21-1, and an operation panel in the second car 21-2. Register the car call information based on the specified destination floor. The congestion status information acquisition unit 42 acquires information on the congestion status of the elevator hall 3-1 on the specific floor (first floor) determined by the congestion status determination devices 24-1 and 24-2.

The recall determination unit 43 is the congestion status information acquisition unit 42 when the car of one of the elevators 2 lands on the specific floor and opens the door during the predetermined recall time zone. It is determined whether or not information indicating that the hall 3 is congested has been acquired. When it is determined that the information indicating that the elevator hall 3 is congested has been acquired, the call registration unit 41 calls the hall on the specific floor within a predetermined time after the car closes and starts running. Monitor whether or not is registered. If the hall call on the specific floor is registered within the predetermined time, it is decided to recall the car of the other elevator 2 to the specific floor.

Further, the recall determination unit 43 indicates that the elevator hall 3 is not congested when the car of one of the elevators 2 lands on the specific floor and opens the door during the predetermined recall time zone. If it is determined that the elevator has been acquired, it is decided not to call it back to the specific floor and to stop the car of the other elevator 2 on the nearest floor.

The operation instruction output unit 44 outputs an instruction to move the corresponding car to the specific floor to the elevator 2 which is determined by the recall determination unit 43 to recall the car to the specific floor.

<Operation of elevator system according to one embodiment>
The operation of the elevator system according to the present embodiment will be described with reference to the flowchart of FIG. If it is determined that the current time is the preset morning commuting time zone (recall operation time zone) (“YES” in S1), one of the two elevators 2-1 and 2-2. It is monitored whether the car of one elevator has landed on the first floor, which is a specific floor, and the door has opened (S2). Here, it is assumed that the first car 21-1 of the first elevator 2-1 has landed on the first floor and opened.

When the first car 21-1 is opened, the photoelectric sensor 23-1 starts detecting an object between the car doors 22-1A and 22-1B. Here, when a user gets on and off between the elevator hall 3 and the first car 21-1, the light beam projected from the floodlight 231-1A of the photoelectric sensor 23-1 is emitted by the user during the getting on and off operation. It is blocked and cannot be received by the receiver 231-1B. As a result, users getting on and off are detected.

The change in the light receiving state of the receiver 231-1B depending on the boarding / alighting situation of the user will be described with reference to FIGS. 3 (a) and 3 (b). In FIGS. 3A and 3B, the horizontal axis shows the passage of time, and the vertical axis shows the light receiving state (light-receiving state-ON, non-light receiving-OFF) of the receiver 231-1B.

FIG. 3A shows light rays in the receiver 231-1B when a user in the first car 21-1 gets off and then a waiting user in the elevator hall 3 gets in the car 21-1. Shows the change in the light receiving state.

While the user in the first car 21-1 is getting off, each time the user getting off passes between the car doors 22-1A and 22-1B, the light receiving state in the light receiver 231-1B is for a predetermined time. Turns off (t1, t2, and t3). When the waiting user in the elevator hall 3 starts boarding after a predetermined time (t4) has passed since the user got off, the light is received each time the boarding user passes between the car doors 22-1A and 22-1B. In the device 231-1B, the light receiving state is turned off for a predetermined time (t5, t6, and t7).

At this time, when the elevator hall 3 is not congested and each waiting user gets into the first car 21-1 at a normal walking speed, the time during which the receiver 231-1B is OFF for each boarding operation ( t5, t6, and t7) are almost constant.

FIG. 3B shows a change in the light receiving state of the light receiver 231-1B when a waiting user gets into the car 21-1 when the elevator hall 3 is crowded.

When the elevator hall 3 is congested, the degree of congestion in the car 21-1 increases as the waiting user gets into the car 21-1, and the boarding speed of the user decreases. Therefore, the time in the OFF state of the receiver 231-1B for each boarding operation becomes long (t8 → t14).

Information on the light receiving state of the receiver 231-1B, which changes as described above according to the congestion status of the elevator hall 3, is acquired by the congestion status determining device 24-1.

The congestion status determination device 24-1 determines whether or not the elevator hall 3 is congested based on the information on the light receiving state acquired from the receiver 231-1B. That is, if the user in the first car 21-1 gets off and then the user in the elevator hall 3 gets on the elevator and the OFF state continues for a certain period of time, the elevator hall 3 is congested. Judge that it is not. Further, when the time length in the OFF state is gradually increasing, it is determined that the elevator hall 3 is congested. The determination result of the congestion status of the elevator hall 3 by the congestion status determination device 24-1 is transmitted to the group management device 4 via the first elevator control device 25-1.

In the group management device 4, the acquired determination result of the congestion status of the elevator hall 3 is acquired by the congestion status information acquisition unit 42. Here, when the determination result that the elevator hall 3 is determined to be congested is acquired (“YES” in S3), when the first car 21-1 is closed and the vehicle starts running. The operation instruction output unit 44 determines whether or not there is a hall call generated on a floor closer to the nearest car call registration floor with respect to the first elevator 2-1 (S5).

When it is determined that there is a hall call that occurred on a floor closer to the nearest car call registration floor (“YES” in S5), the first car 21-1 is already crowded and more users can board. It is determined that this is not possible, and an instruction to make the hall call non-response is transmitted to the first elevator control device 25-1 (S6). As a result, the first car 21-1 is directly operated toward the nearest car call response floor.

After the instruction to make the hall call non-response is transmitted in step S6, or when it is determined in step S5 that there is no hall call generated on the floor closer to the nearest car call registration floor (“S5” In "NO"), the recall determination unit 43 determines whether or not the hall call operation has been performed on the hall operation panel 31-1 on the first floor within a predetermined time from the start of traveling of the first car 21-1. (S7).

When the hall call operation is performed on the first floor within a predetermined time, the recall determination unit 43 causes a waiting user who could not get through the first car 21-1 in the elevator hall 3 or a waiting user who newly entered. It is determined that there is, and it is decided to recall the second car 21-2 of the other second elevator 2-2 to the first floor. Then, the operation instruction output unit 44 generates a specific floor movement instruction for moving the second car 21-2 to the first floor, and transmits the instruction to the second elevator control device 25-2 (S8).

The second elevator control device 25-2 moves the second car 21-2 to the first floor when the car call and the hall call of the second elevator 2-2 are not registered.

In step S3, when the determination result that the elevator hall 3 is not congested is acquired (“NO” in S3), or in step S7, the hall calling operation is not performed on the first floor within a predetermined time. At that time (“NO” in S7), the recall determination unit 43 determines that there are no waiting users in the elevator hall 3, and the second car 21-2 is not recalled to the first floor, and the nearest floor, for example, It is decided to stop at the drop-off floor. Then, the operation instruction output unit 44 generates the nearest floor landing instruction for landing the second car 21-2 on the nearest floor, and transmits the instruction to the second elevator control device 25-2 (S9).

The second elevator control device 25-2 causes the second car 21-2 to land on the nearest floor when the car call and the hall call of the second elevator 2-2 are not registered.

When the second car 21-2 is landed on the nearest floor, there is no car waiting on the first floor. Therefore, when the nearest floor landing instruction is transmitted in step S9, the operation instruction output unit 44 provides guidance information prompting the hall call operation from the hall speaker device 32-1 on the first floor into the elevator hall 3, and the car. Guidance information indicating that it takes time to arrive is output (S10).

According to the above embodiment, it is possible to control two elevators so as not to reduce the operation efficiency while shortening the waiting time of the user who gets in from the specific floor as much as possible.

In the above-described embodiment, the case where two elevators 2-1 and 2-2 are provided in the elevator system 1 has been described, but three or more elevators may be provided. In that case, the congestion status determination device for the car of one of the elevators determines that the elevator hall on the specific floor is congested, and the hall is called on the specific floor within a predetermined time after the car starts running. Once registered, it will be controlled to bring back at least one other elevator car to a particular floor. In addition, when it is determined that the elevator hall on the specific floor is not congested by the congestion status determination device of the car of any of the elevators, or it is determined that the elevator hall on the specific floor is congested. , If the hall call on the specific floor is not registered within the specified time after the vehicle starts running, until the next elevator vehicle lands on the specific floor and opens the door. Land the car of all other elevators on the nearest floor, such as the drop-off floor.

Although 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. This novel embodiment can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Elevator system, 2 ... Elevator, 2-1 ... 1st elevator, 2-2 ... 2nd elevator, 3,3-1-3-n ... Elevator hall, 4 ... Group management device, 5 ... Hoistway, 21 -1 ... 1st car, 21-2 ... 2nd car, 22-1A, 22-1B ... Car door, 23-1,231 ... Photoelectric sensor, 24-1, 24-2 ... Congestion status judgment Device, 25-1 ... 1st elevator control device, 25-2 ... 2nd elevator control device, 31-13-1-n ... Hall operation panel, 32-1-22-n ... Hall speaker device, 41 ... Call registration Unit, 42 ... Congestion status information acquisition unit, 43 ... Recall determination unit, 44 ... Operation instruction output unit, 231-1A, 231-2A ... Floodlight, 231-1B, 231-2B ... Receiver

According to the embodiment for achieving the above object, the elevator group management device is connected to a plurality of elevators and includes a recall determination unit and an operation instruction output unit. The recall determination unit recalls the elevator car for which call information is not registered to the specific floor during the time period in which the recall operation is set, and one of the multiple elevator cars is placed on the specific floor. When the floor was landed and the door was opened, information indicating that the elevator hall on the specific floor was not congested was acquired, or information indicating that the elevator hall on the specific floor was congested was acquired. However, if the hall call for the specific floor is not registered within a predetermined time after the car closes and starts running, then the car of any of the elevators will be placed on the specific floor. Until the door is opened after landing on the floor, it is decided not to recall the car of another elevator for which the call information is registered to the specific floor, but to land on the nearest floor . The operation instruction output unit outputs an instruction to move the corresponding vehicle to the specific floor to the elevator that has decided to recall the vehicle to the specific floor, and causes the vehicle to land on the nearest floor. Outputs an instruction to land the corresponding car on the nearest floor to the elevator that has decided .

Claims (6)

Connected to multiple elevators
Among the elevator halls in the building where the plurality of elevators are installed, the congestion status information acquisition unit that acquires the congestion status information of the elevator halls on the specific floors set in advance, and the congestion status information acquisition unit.
A call registration unit that registers hall call information and car call information of the elevator,
When the car of one of the plurality of elevators lands on the specific floor and opens the door at a predetermined time zone, the elevator hall on the specific floor is congested by the congestion status information acquisition unit. When the information indicating that the elevator is used is acquired, and then the hall call on the specific floor is registered in the call registration unit within a predetermined time after the car closes and starts running. A recall determination unit that determines to recall the car of at least one other elevator to the specific floor.
The elevator is provided with an operation instruction output unit that outputs an instruction to move the corresponding car to the specific floor for the elevator that is determined by the recall determination unit to recall the car to the specific floor. Elevator group management device. In the recall determination unit, when one of the plurality of elevator cars lands on the specific floor and opens the door during the predetermined time zone, the elevator hall on the specific floor is congested. Information indicating that the vehicle has not been installed has been acquired, or information indicating that the elevator hall on the specific floor is congested has been acquired, but after the car has closed and the vehicle has started running. If the hall call for the specific floor is not registered within the specified time, the car for the other elevator will be used until the next elevator car lands on the specific floor and opens. Decided to land on the nearest floor,
The operation instruction output unit outputs an instruction to land the corresponding vehicle on the nearest floor to the elevator that the recall determination unit determines to land the vehicle on the nearest floor. The elevator group management device according to claim 1. The congestion status information acquisition unit determines the specific floor based on the user's boarding / alighting status in the corresponding car, which is detected by the photoelectric sensors installed in the cars of each of the plurality of elevators. The elevator group management device according to claim 1 or 2, wherein the information on the congestion status of the elevator group is acquired. Connected to the output device installed on the specific floor,
When the recall determination unit determines that the other elevator car is to be landed on the nearest floor, the operation instruction output unit provides guidance information for prompting a hall call operation from the output device. The elevator group management device according to claim 2, wherein guidance information indicating that it takes time for the car to arrive is output. The operation instruction output unit determines that the elevator hall on the specific floor is congested by the recall determination unit, and after the vehicle closes the door and starts traveling, the nearest car to the elevator. The elevator group management device according to any one of claims 1 to 4, wherein an instruction for not responding to a hall call generated on a floor closer to the call registration floor is output. Elevator group management devices connected to multiple elevators
When one of the plurality of elevator cars lands on a preset specific floor and opens the door at a predetermined time, the elevator hall on the specific floor is congested. If the information indicating that the information is obtained and then the hall call of the specific floor is registered within a predetermined time after the car is closed and the vehicle starts running, at least one of the other elevators A recall determination step that determines to recall the car to the specific floor, and
It is characterized by having an operation instruction output step for outputting an instruction to move the corresponding car to the specific floor for the elevator which is determined to recall the car to the specific floor in the recall determination step. Elevator group management method.

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