JP7106716B1 - elevator group control system - Google Patents

Abstract

An object of the present invention is to efficiently ventilate the inside of each car without requiring any special equipment and without lowering operation efficiency, and easily appealing to users that ventilation is in progress. An elevator group management system according to one embodiment includes a plurality of cars, high-demand floor detection means, ventilation operation means, and allocation control means. The high-demand floor detecting means detects the floor with the highest demand within a certain past period as a high-demand floor. The above-mentioned ventilation operation means judges, among the above-mentioned each of the above-mentioned cars, a car that has already responded to all calls as a ventilation target, makes the car stand by with the door open at the stop floor of the car, and after a certain period of time has passed, the above-mentioned high-demand floor and wait with the door open on the high-demand floor. When a new hall call is registered, the allocation control means selects an allocated car from among the cars based on the operation information of each car, and if there are a plurality of candidates for the allocated car. First, a car having a long wait time with the door open is preferentially selected as an assigned car, and is made to respond to the registered floor of the hall call. [Selection diagram] Fig. 1

Description

An embodiment of the present invention relates to an elevator group management system having multiple cars.

In recent years, with the epidemic of highly contagious viruses, there is a demand for measures against infection through ventilation. In particular, since the inside of the elevator car is a closed space, regular ventilation is required. Therefore, a method of installing a fan in the car and rotating the fan at high speed by operating the ventilation button to ventilate the inside of the car is conceived.

JP-A-7-172722 JP-A-2005-75579

However, the method described above requires installation of a special device (fan) for ventilation in the car, and cannot be applied to existing elevators. In addition, since the method is implemented for a single car, it does not consider the operation efficiency when a plurality of cars are targeted. Furthermore, it is difficult for the user to know that the inside of the car is being ventilated.

The problem to be solved by the present invention is to efficiently ventilate the inside of each car without requiring any special equipment and without lowering the operation efficiency, so that the user can easily know that the inside of the car is being ventilated. To provide an appealing elevator group control system.

An elevator group management system according to an embodiment includes a plurality of cars, high-demand floor detection means, ventilation operation means, and allocation control means. The high-demand floor detecting means detects the floor with the highest demand within a certain past period as a high-demand floor. The ventilation operation means determines a car that has already responded to all calls among the above cars as a ventilation target, makes the car stand by with the door open at the stop floor of the car, and waits for the high demand floor after a certain period of time. and wait with the door open on the high-demand floor. When a new hall call is registered, the allocation control means selects an allocated car from among the cars based on the operation information of each car, and if there are a plurality of candidates for the allocated car. First, a car having a long wait time with the door open is preferentially selected as an assigned car, and is made to respond to the registered floor of the hall call.

FIG. 1 is a block diagram showing the configuration of an elevator group management system according to one embodiment. FIG. 2 is a diagram showing the configuration of the entrance and exit peripheral portion in the car in the same embodiment. FIG. 3 is a flow chart for explaining processing operations during ventilation operation in the embodiment. FIG. 4 is a flow chart for explaining the processing operation at the time of allocating hall calls in the embodiment. FIG. 5 is a diagram showing a specific example of ventilation operation in the same embodiment. FIG. 6 is a flow chart showing the processing operation of modification (2). FIG. 7 is a diagram showing an example of detecting a passenger's body temperature using a thermal camera as a modified example (3). FIG. 8 is a flow chart showing the processing operation of the modification (3).

Embodiments will be described below with reference to the drawings.
The disclosure is merely an example, and the invention is not limited by the contents described in the following embodiments. Modifications that can be easily conceived by those skilled in the art are naturally included in the scope of the disclosure. In order to make the explanation clearer, in the drawings, the size, shape, etc. of each part may be changed from the actual embodiment and shown schematically. Corresponding elements in multiple drawings may be denoted by the same reference numerals and detailed descriptions thereof may be omitted.

FIG. 1 is a block diagram showing the configuration of an elevator group management system according to an embodiment, and shows a configuration in which a plurality of cars (here, three cars A to C) are group-controlled. In the figure, 11a to 11c are elevator controllers, and 12a to 12c are cars.

Elevator control devices 11a to 11c are provided for each car 12a to 12c of each car, and control the operation of the corresponding car. Specifically, the elevator controllers 11a to 11c control motors (hoists) (not shown) for moving the cars 12a to 12c up and down, and open/close doors. These elevator controllers 11a to 11c are configured by computers.

The cars 12a to 12c move up and down in the hoistway by being driven by motors. Load sensors 13a to 13c are installed in the cars 12a to 12c for detecting the load in the car room, respectively. Load data detected by the load sensors 13a to 13c are transmitted to the group supervisory control device 20 via the elevator control devices 11a to 11c.

A hall call registration device 15 for registering a hall call is installed in the hall (elevator hall) 14 of each floor. In the example of FIG. 1, the hall call registration device 15 installed on an arbitrary floor is shown for the sake of convenience, but actually at least one hall call registration device 15 is installed for each floor. The hall call registration device 15 is connected to the group supervisory control device 20 via a transmission cable (not shown). The hall call registration device 15 includes direction buttons (also called hall call buttons) for passengers to specify the destination direction (upward/downward).

A "hall call" is a call signal registered by operating a direction button at a hall, and includes information on the registered floor and destination direction. On the other hand, a "car call" is a call signal registered by operating a destination floor button in a car, and includes information on the car and the destination floor.

The group supervisory control device 20 is a device for group supervisory control of the operation of the plurality of cars 12a to 12c, and is composed of a computer like the elevator controllers 11a to 11c. In this embodiment, the group supervisory control device 20 is provided with a call storage section 21 , a high demand floor detection section 22 , an allocation control section 23 and a ventilation operation section 24 .

A hall call registered by operating the hall call registration device 15 is stored in the call storage unit 21 . The high-demand floor detection unit 22 detects the floor with the highest demand within a certain past period as a high-demand floor. A "high-demand floor" is a floor with a large number of passengers using the elevator, and is detected by the number of hall calls registered on each floor and changes in the load on the car on each floor. .

The assignment control unit 23, when a new hall call is registered, based on the operating information (current position, operating direction, door open/closed state, etc.) of the cars 12a to 12c obtained from the elevator control devices 11a to 11c, A car to which the hall call is assigned (referred to as an assigned car) is selected. At this time, if there are a plurality of candidates for the assigned car, the assignment control unit 23 preferentially assigns a car that has been waiting with the doors open for a long time on the stop floor or the high-demand floor as the assigned car. Select to answer the registered floor of the hall call.

The ventilation operation unit 24 carries out ventilation operation in which the car is on standby with the door open in two stages. "Waiting with the door open" means waiting with the door of the car open. The ventilation operation unit 24 determines, among the cars 12a to 12c of each car, the cars that have responded to all calls as objects to be ventilated, and opens the doors for a certain period of time (for example, 30 seconds) at the stop floor of the car. wait. If no hall call is assigned to the car during this fixed period of time, the ventilation operation unit 24 moves the car to the high-demand floor detected by the high-demand floor detection unit 22, and then the door is opened again there. open and wait.

Next, the cars 12a to 12c will be referred to as the car 12 for convenience, and the configuration inside the car 12 will be described.

FIG. 2 is a diagram showing the configuration of the entrance and exit peripheral portion in the car 12. As shown in FIG. A car door 40 is provided at the doorway of the car 12 so as to be freely opened and closed. In the example of FIG. 2, a car door 40 of a double-opening type is shown, and two door panels 40a and 40b constituting the car door 40 open and close in opposite directions along the frontage direction (horizontal direction). Note that the “frontage” is the same as the doorway of the car 12 .

Entrance posts 41a and 41b are provided on both sides of the doorway of the car 12. As shown in FIG. The "entrance pillar" is also called a front pillar, and is generally provided with a door pocket for housing the car door 40 on the back side. In the example of FIG. 2, when the car door 40 is opened, one door panel 40a is accommodated in a door pocket 42a provided on the back side of the entrance pillar 41a, and the other door panel 40b is provided on the back side of the entrance pillar 41b. It is housed in the door pocket 42b. One or both of the entrance pillars 41a and 41b are provided with a display 43, an operating panel 45 having destination floor buttons 44, and a speaker 46. As shown in FIG.

In the example of FIG. 2, a speaker 46 is installed on the entrance pillar 41a, and a display 43 and an operation panel 45 are installed on the entrance pillar 41b. When a passenger in the car 12 presses a destination floor button 44 on the operation panel 45, the destination floor designated by the destination floor button 44 is registered as a car call. A car call registered in the car 12 is sent to the group supervisory control device 20 via an elevator control device (referred to as an elevator control device 11 ) corresponding to the car 12 .

Next, the processing operation of this system will be described separately for (a) operation during ventilation operation and (b) operation during hall call allocation.

(a) During Ventilation Operation FIG. 3 is a flow chart for explaining the processing operation during ventilation operation in this embodiment. The processing shown in this flowchart is mainly executed by the group supervisory control device 20 .

The cars 12a to 12c of each elevator move between floors in response to calls assigned to them (platform calls and car calls). Here, the ventilation operation unit 24 provided in the high demand floor detection unit 22 determines which car has responded to all calls based on the allocation information of the cars 12a to 12c obtained from the elevator control devices 11a to 11c. It is determined whether or not it exists (step S101). The allocation information includes information on hall calls and car calls allocated to each of the cars 12a to 12c. If there is a corresponding car (Yes in step S101), the ventilation operation unit 24 determines that the car is to be ventilated, and performs the following ventilation operation.

Assume that the car 12a has already responded to all calls and is determined to be ventilated.
The ventilation operation unit 24 waits with the door open at the stop floor of the car 12a through the elevator control device 11a (step S102). It is preferable to turn off lighting equipment installed on the ceiling surface or the like in the car 12a while waiting for the door to open. This is not only for the purpose of reducing power consumption during standby, but also because passengers misunderstand that the lights are out of order if the lights are on when the doors are open. In addition, since there is a possibility that a passenger gets into the car 12a waiting for the door to open and registers the car call (destination floor), the operation of the destination floor button 44 (registration of the car call) is required while the door is waiting for the door to open. should be prohibited.

Here, even if the door is waiting for opening, the car 12a is not separated from the group control. to be assigned to the hall call. If a hall call is assigned to the car 12a within a certain period of time (for example, 30 seconds) after waiting for the door to open (No in step S103), the operation is switched to normal operation (step S106). As a result, the car 12a closes and responds to the registered floor of the hall call.

On the other hand, if no hall call is assigned to the car 12a (Yes in step S103), the ventilation operation section 24 temporarily closes the car 12a and moves it to a high-demand floor (step S104). High-demand floors are detected by the high-demand floor detector 22 based on the number of hall calls.

More specifically, the call storage unit 21 stores the number of hall calls registered for each floor in association with the date and time of registration, and the high-demand floor detection unit 22 refers to the call storage unit 21 to perform The floor with the largest number of hall calls during the period is detected as the high-demand floor. As another method, it is also possible to detect the floor with the largest number of passengers getting on and off as the high demand floor from the load change of each floor.

Further, in recent years, an elevator system equipped with a hall destination floor registration device (HDC: Hall Destination Controller) capable of directly specifying a destination floor at a hall has been put into practical use. Such an elevator system is called a "destination control system (DCS)". Based on a call having a destination floor registered by a user at a boarding hall (hereinafter referred to as a "destination call"), the DCS selects an optimum car from among a plurality of cars and makes the boarding hall respond. . When DCS is applied, it is also possible to detect the floor with the highest number of destination calls for a certain period of time as a high demand floor based on the relationship between the number of destination calls registered on each floor and the date and time of registration. good.

After moving the car 12a to the high-demand floor, the ventilation operation unit 24 keeps the car 12a on standby with the door open until the hall call is assigned (step S105). The reason why the car 12a is kept waiting with the door open on the high-demand floor is that it can appeal to many passengers that the door is open for ventilation. Also, when a new hall call is registered for a high-demand floor, it is possible to respond immediately.

Here, it is preferable to turn off the lighting equipment installed on the ceiling surface or the like in the car 12a, as in the case of waiting for the door to open at the stop floor described in step S102. Further, it is preferable to prohibit the operation of the destination floor button 44 (registration of a car call) while waiting for the door to open.

In the above embodiment, the car 12a is moved to the high-demand floor with the highest demand and waits with the doors open. It is also possible to move the car 12a to the high-demand floor where the demand is next high and wait with the doors open. In other words, when a plurality of cars are subject to ventilation almost simultaneously, the cars are placed on standby in order from the high-demand floor with the highest demand. As a result, it is possible to appeal the ventilation to a large number of passengers and improve the operational efficiency.

(b) At the time of allocating a hall call FIG. 4 is a flow chart for explaining the processing operation at the time of allocating a hall call in this embodiment. The processing shown in this flowchart is mainly executed by the group supervisory control device 20 .

When a new hall call is registered by operating the hall call registration device 15 installed on an arbitrary floor (Yes in step S201), the information (registered floor and destination direction) of the hall call is sent to the group supervisory control device 20. and stored in the call storage unit 21. Along with this, the assignment control unit 23 acquires the operation information of the cars 12a to 12c through the elevator control devices 11a to 11c (step S202), and when the hall call is assigned from the operation information, the most efficient operation is performed. A suitable car is selected as an assigned car (step S203).

Specifically, the assignment control unit 23 sets various parameters obtained from the operation information of the cars 12a to 12c in a predetermined evaluation function formula, obtains an evaluation value when the hall call is assigned, and determines the highest evaluation car. Elect the car as the assigned car. Note that the "evaluation value" is an index representing the optimum when hall calls are assigned. In this evaluation value, the smaller the numerical value, the higher the evaluation, and the larger the numerical value, the lower the evaluation.

In this embodiment, an evaluation value is calculated for each car, including the cars waiting with doors open on the stop floors and high-demand floors described in FIG. 2, and the assigned car is selected from the evaluation values. Here, when there are a plurality of candidates for the assigned car, that is, when two or more cars having the same evaluation value are selected as candidates for the assigned car (Yes in step S204), the assignment control unit 23 Among the candidates, a car that is currently waiting for the door to be opened and has a long waiting time with the door open is preferentially selected as an assigned car (step S205).

For example, it is assumed that the car 12a of car A has been waiting with the door open for 40 seconds on the high demand floor, and the car 12b of car B has been waiting with the door open for 20 seconds at the stop floor. In this case, the car 12a of car A is selected as the assigned car. As another example, both the car 12a of car A and the car 12b of car B are waiting for the door to be opened at the stop floor, the car 12a of car A is waiting for the door to be open for 15 seconds, and the car of car B is 12b was waiting for the door to open for 20 seconds. In this case, the car 12b of car B is selected as the assigned car.

In this way, a car with a long waiting time for door open is selected as an assigned car. This is because the longer the door open standby time is, the longer the ventilation by opening the door is and the cleaner the car is. In addition, it is preferable to preferentially respond to a hall call to a car that has been waiting for a long time in terms of operation efficiency.

In addition, the car that is waiting for the door to open on the high-demand floor has already finished waiting for the door to open for a certain period of time (for example, 30 seconds) at the stop floor. It may be compared with the door open waiting time of other cars. That is, for example, if the car 12a of the A-car is waiting for 40 seconds with the door open on the high-demand floor, the stop waiting time is set to 70 seconds including the door open waiting time of 30 seconds on the stop floor. In addition, if there is not even one car waiting for the door open among candidates for the assigned car, the assigned car is selected in a predetermined order of priority (for example, in the order of car A→car B→car C). and

The assignment control unit 23 makes one car finally selected as the assigned car respond to the registered floor of the hall call (step S206). Specifically, for example, when the car 12a of car A is selected as the assigned car, the assignment control unit 23 outputs an assignment signal to the elevator control device 11a, and moves the car 12a to the floor where the hall call is registered. to the boarding point 14.

Fig. 5 shows a specific example of ventilation operation.
Suppose now that all cars 12a of car A have responded to calls (platform calls and car calls) in a building on the 10th floor. Assuming that the floor when all calls have been answered is the fifth floor, the car 12a waits for a certain period of time on the fifth floor with the door open for ventilation.

Here, for example, when an upward hall call is registered on the 7th floor, the allocation of the hall call including the car 12a is evaluated. As a result, when the car 12a is selected as the assigned car within the predetermined time, the car 12a closes and responds to the seventh floor. On the other hand, when the car 12b of the B-car in normal operation is selected as the assigned car, the car 12b goes to the landing 14 on the 7th floor, and the car 12a closes after a certain period of time to move to the high-demand floor. and move to the 1st floor where the door is opened again.

The same applies when a new hall call is registered at an arbitrary floor while the car 12a of the A car is waiting for the doors to open on the first floor with high demand. A car is elected as the assigned car. For example, when the car 12a is waiting with the door open on the 1st floor with high demand, and the car 12c of the C car is waiting with the door open on the 10th floor, allocation is performed by allocation control considering the waiting time with the door open. A basket is selected.

As described above, according to the present embodiment, a car that has responded to all calls is targeted for ventilation, and the car is placed on standby with the door open at the stop floor of the car. If not, it is moved to a high-demand floor, and the high-demand floor is put on standby with the door open again. As a result, the inside of each car can be efficiently ventilated without requiring special equipment such as a fan, and without significantly affecting operation efficiency. In addition, by waiting with the door open on the high-demand floor, it is possible to appeal to many passengers that the door is open for ventilation.

(Modification)
(1) Waiting with doors open on high-demand floors In the above embodiment, when a car to be ventilated moves to a high-demand floor, the doors are kept on standby with the doors open continuously until a hall call is assigned. , the door may be opened and waited for a certain period of time. The fixed time at this time may be the same as or different from the time during which the vehicle is waiting for the door to open on the stop floor. After a certain period of time has elapsed, the car is closed and normal operation is resumed.

(2) Execution of ventilation operation in accordance with the number of passengers When the car stops after responding to all calls, ventilation may be performed in accordance with the number of passengers in the car. The number of passengers can be calculated from the load value of the car. For example, when the average load per passenger is 60 kg, the number of passengers can be calculated as 5 if the load value is around 300 kg.

FIG. 6 shows the processing operation of modification (2).
Description will be made on the assumption that the car 12a of car A stops after responding to all calls. As shown in FIG. 1, a load sensor 13a is installed on the car 12a. Every time the car 12a stops at each floor, the elevator control device 11a calculates the number of passengers based on the load value detected by the load sensor 13a.

Here, when the car 12a responds to all calls and stops (Yes in step S301), the ventilation operation unit 24 acquires the number of passengers in the car 12a from the elevator control device 11a (step S302). In this case, the number of passengers immediately before the car 12a responded to all calls may be obtained, or the number of passengers that was the largest during operation of the car 12a may be obtained.

When the number of passengers is equal to or greater than the preset number of people (Yes in step S303), the ventilation operation unit 24 performs ventilation operation, and as described in the above embodiment, the stop floor and the high-demand floor are divided into two stages. Door open standby is performed (step S304). On the other hand, if the number of passengers is less than the preset number (No in step S303), the ventilation operation section 24 determines that the car 12a is not subject to ventilation and operates normally (step S305).

In this way, by performing the ventilation operation according to the number of passengers, the inside of each car can be efficiently ventilated without deteriorating the operation efficiency as much as possible.

(3) Execution of Ventilation Operation According to Passenger Body Temperature For example, when a passenger with a high body temperature is in the car, it is preferable to ventilate the inside of the car. Therefore, it is also possible to detect the body temperature of a passenger who has boarded the car, and to implement the ventilation operation if the temperature is above a certain temperature. As a method of detecting body temperature, for example, there is a method of installing a thermal camera or a non-contact temperature measuring device in the car or at the landing.

FIG. 7 shows an example of detecting a passenger's body temperature using a thermal camera.
A landing door 16 and a three-way frame 17 surrounding the landing door 16 are provided at the arrival gate of the car. A hall call registration device 15 is provided on one of both sides of the jamb 17 . The landing door 16 opens and closes together with the car door 40 shown in FIG.

Here, a thermal camera 50 is installed near the upper part of the doorway of the car facing the hall 14, and the body temperature of the passengers getting on the car is detected from the image taken by the thermal camera 50.例文帳に追加In addition, although one car is not shown in the example of FIG. 7, a plurality of cars are actually installed side by side, and the thermal camera 50 is installed in each car.

FIG. 8 shows the processing operation of modification (3).
Description will be made on the assumption that the car 12a of car A stops after responding to all calls. As shown in FIG. 7, a thermal camera 50 is installed inside the car 12a. Every time the car 12a stops at each floor, the elevator control device 11a uses the thermal camera 50 to detect the body temperature of the passengers boarding the car 12a.

Here, when the car 12a responds to all calls and stops (Yes in step S401), the ventilation operation unit 24 acquires the body temperature of the passengers who boarded the car 12a from the elevator control device 11a (step S402). ). In this case, the body temperature of each passenger is acquired for all the passengers who boarded the car 12a on each floor.

As a result, if there is a passenger with a temperature higher than the preset temperature (Yes in step S403), the ventilation operation unit 24 performs ventilation operation, and as described in the above embodiment, two Step S404 waits for the door to open. On the other hand, if there is no passenger with a temperature higher than the preset temperature (No in step S403), the ventilation operation unit 24 determines that the car 12a is not subject to ventilation, and operates normally (step S405). ).

In this way, by performing the ventilation operation according to the body temperature of the passengers, it is possible to efficiently ventilate the interior of each car while minimizing the decrease in operation efficiency.

As another method, for example, the thermal camera 50 shown in FIG. 7 is replaced with a general camera, the image of the camera is analyzed, and it is detected that a passenger who is not wearing a mask has boarded the car. It is also possible to adopt a configuration in which the ventilation operation is performed only when

According to at least one embodiment described above, the interior of each car can be efficiently ventilated without requiring special equipment and without lowering the operation efficiency, and the user can be notified that ventilation is in progress. It is possible to provide an elevator group management system that can be easily appealed.

It should be noted that although several embodiments of the invention have been described, these embodiments are provided by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 11a-11c... Elevator control device 12a-12c... Car 13a-13c... Load sensor 14... Platform 15... Platform call registration device 20... Group management control device 21... Call memory part 22... High demand Floor detection unit, 23: Allocation control unit, 24: Ventilation operation unit.

Claims (7)

In an elevator group control system with multiple cars,
a high-demand floor detection means for detecting a floor with the highest demand within a certain past period as a high-demand floor;
Among the above-mentioned cars, the cars that have answered all calls are judged to be ventilation targets, and the doors are kept open on the floors where the cars are stopped. Ventilation operation means for waiting with the door open on the demand floor;
When a new hall call is registered, an assigned car is selected from each of the above-mentioned cars based on the operation information of each of the above-mentioned cars, and when there are a plurality of candidates for the above-mentioned assigned car, a door open waiting time is determined. allocation control means for preferentially selecting a car with a long height as an allocation car and responding to the registered floor of the hall call. The ventilation operation means is
A claim characterized in that, when a hall call is not assigned to the car at the stop floor for the predetermined time, the car is moved to the high-demand floor and waits at the high-demand floor with the door open. Item 1. The elevator group management system according to item 1. The ventilation operation means is
2. The elevator group control system according to claim 1, wherein the car is kept on standby with the door open until a hall call is assigned to the car on the high-demand floor. The ventilation operation means is
2. The elevator group control system according to claim 1, wherein the car is kept waiting with the doors open for a predetermined time at the high-demand floor. The ventilation operation means is
2. The elevator group management system according to claim 1, wherein when the number of passengers in said car is equal to or greater than a preset number, a ventilation operation is carried out in which said car stands by with its door open. 6. The elevator group management system according to claim 5, wherein the number of passengers is calculated from a load value detected by a load sensor installed in the car. Equipped with a detection means for detecting the body temperature of the passenger in the car,
The ventilation operation means is
2. The elevator group control system according to claim 1, wherein when the body temperature of the passenger detected by said detection means is equal to or higher than a preset temperature, a ventilation operation is carried out in which said car is on standby with the door open.

Images