JP2503720B2 - Elevator car allocation device - Google Patents

Description

The present invention relates to an elevator car allocating device,
In particular, it relates to an elevator car allocating device having a plurality of main floors.

[Prior Art] With the recent widespread use of underground transportation such as subways, the floor (hereinafter referred to as the main floor), which is the main entrance and exit of a building, is located above the ground.
The number of buildings with two floors, the first floor and the first basement floor, is increasing. Along with this, there is a demand for an elevator car allocating device that provides uniform service to the two main floors during work hours.

As a conventional elevator car allocating device of this type, there is a technique disclosed in Japanese Patent Application Laid-Open No. 57-13065.

This elevator car allocator works on the main floor (usually 1
When there is a large amount of traffic for landing calls for floors (upstairs), if a landing call for landing on the main floor and a landing call for basement floors are registered, the cars that responded to these landing calls will have a time interval equal to that on the main floor. It assigns the cars to arrive.
By allocating the cars in this way, congestion on the main floor floor is averaged and waiting passengers on the main floor are prevented from waiting for a long time.

[Problems to be Solved by the Invention] In the conventional elevator car allocation device as described above,
The main floor was limited to the main floor above ground (usually the first floor).
Therefore, only the service of the main floor above the ground is improved, and the service of the main floor below the ground is not improved, which is inconvenient when the main floor is also present in the basement floor.

Further, in the above elevator car allocating device, since the main floor is limited to one floor, it is not suitable when there are a plurality of main floors. In particular, the arrival of a subway train causes the basement floor to become the main floor, and the arrival of a train that is an underground transportation means the basement floor becomes the main floor, depending on the arrival of each train. However, when the floor that becomes the main floor changes with the passage of time, it was not possible to provide equal service to these two main floors.

Furthermore, the conventional elevator car allocating device is unsuitable when the number of installed cars is small (especially, one).

On the other hand, as prior art, there are JP-A-57-81069 and JP-A-1-203187.

The technology disclosed in Japanese Patent Laid-Open No. 57-81069 records the distribution of each car call registration for each direction, and obtains the probability distribution of car calls generated by statistical processing. The call unregistered time is also recorded in the same manner, and the waiting time that increases due to the car call that occurs when the hall call on the middle floor is answered is predicted from the average unregistered time, and the time to arrive at the calculation landing is calculated accurately. , It is intended to reduce inconveniences such as waiting for the hall manager and first-arriving car calls.

The technology disclosed in Japanese Patent Laid-Open No. 1-203187 uses at least a waiting time as an evaluation index for a common hall call of a plurality of elevators arranged in parallel, and evaluates each elevator using the index value and evaluates the evaluation. The optimal elevator of is assigned to the hall call.

However, in the technologies disclosed in the above-mentioned publications, since the main floor is limited to the first floor above the ground, only the service of the main floor above the ground is improved, and the service of the main floor below is improved. Since it is not done, it was inconvenient like the former when the main floor also existed in the basement. In addition, the underground floor becomes the main floor due to the arrival of a subway train, and the first floor above the ground becomes the main floor due to the arrival of a train that is a ground transportation system. In the case where the floor which becomes the main floor changes with the passage of time in response to the arrival of the above, it is still unsolved to provide equal service to these two main floors.

So, regardless of the number of elevators installed, this invention
An object of the present invention is to provide an elevator car allocating device that can provide uniform service to a plurality of main floors according to changes in the congestion time zone.

[Means for Solving the Problem] In the elevator car allocating apparatus according to the present invention, the hall call detecting means detects that hall calls in the same direction are simultaneously generated from a plurality of main floors. The boarding load ratio is calculated from the cumulative boarding load values of the plurality of main floors during the past certain period of time, and the allocation ratio when the boarding calls in the same direction are simultaneously distributed to the plurality of main floors Seeking
Further, the absolute value of the difference between the boarding load ratio and each allocation ratio is obtained, and the cars are allocated to the plurality of main floors according to the absolute value of the difference between the boarding load ratio and each allocation ratio. .

[Operation] In the present invention, when hall calls in the same direction are simultaneously generated from a plurality of main floors, the ratio of the traffic volume of the plurality of main floors during the past fixed time from the time of this detection is calculated. Then
Since the cars are assigned to the plurality of main floors according to the traffic ratio, even when there are a plurality of congested floors such as during work hours, the plurality of main floors are appropriately allocated to the plurality of main floors. Since the cars are assigned, it is possible to prevent the passengers from passing through or leaving unloaded items on the main floor, and to quickly transport passengers to a desired floor, and even if the degree of congestion of the main floors changes, Cars are assigned according to changes in the degree of congestion, uniform service can be provided to a plurality of main floors, and any main floor can be targeted.

[Examples] Examples of the present invention will be described below.

FIG. 1 is a block diagram showing an allocation arithmetic unit of an elevator car allocation device according to an embodiment of the present invention.

In the figure, reference numeral 1 is an assignment arithmetic unit, 2 is a central processing unit for performing various arithmetic operations of the assignment arithmetic unit 1, 3
Is a main memory for storing various data. The central processing unit 2 of the assignment arithmetic unit 1 has a first floor car position signal.
4a and B floor car position signal 4b, 1st floor landing call signal 1U and B floor landing call signal BU, and car load signal 5 are input respectively, and the allocation arithmetic unit 1 executes a predetermined program based on these inputs. Various arithmetic processes are performed in accordance with. And
The central processing unit 2 of the allocation arithmetic unit 1 outputs the first floor hall uplink call assignment signal 1UW and the Bth floor hall uplink call assignment signal BUW, respectively.

The allocation calculation device of this embodiment is configured as described above, and forms the core of the elevator car allocation device having two floors, the first floor and the basement floor (B floor) as the main floors. By inputting the 1st floor hall upcall signal 1U and the Bth floor hall upcall signal BU to this allocation arithmetic unit 1 at the same time, the 2nd floor
It is detected that hall calls in the same direction occur simultaneously from one main floor. Then, in the main storage device 3, the accumulated values of the boarding loads, which are the traffic volumes of the two main floors of the first floor and the B floor, during the past fixed time (5 minutes in this embodiment) from the time of this detection are stored. To do. That is, from the first-floor landing call signal 1U, the first-floor car position signal 4a, and the car load signal 5, an accumulated boarding load value at the time of responding to the first-floor landing call is obtained and stored in the main storage device 3, and B From the floor hall upcall signal BU, the B floor car position signal 4b, and the car load signal 5, a cumulative boarding load value at the time of responding to the B floor hall upcall is calculated and stored in the main storage device 3. In addition, the cumulative value of the number of times of actual car allocation in the past fixed time (5 minutes in this embodiment) is also stored in the main storage device 3. That is, the cumulative total value for the first floor hall uplink call is calculated from the first floor hall uplink call allocation signal 1UW and stored in the main memory 3, and the cumulative total value for the B floor hall uplink call is calculated from the B floor hall uplink call allocation signal BUW. It is obtained and stored in the main storage device 3.
Then, various calculations are performed using each of these data to properly assign the cars.

Next, a car allocating operation by the car allocating device for an elevator according to this embodiment will be described.

FIG. 2 is a flowchart showing an example of car allocation operation by the elevator car allocation device of the present invention.

In the figure, in step S1, it is determined whether or not hall calls in the same direction are simultaneously generated from the two main floors, the first floor and the B floor. This is the first floor landing call signal to the allocation arithmetic unit 1.
It can be judged by inputting 1U and B floor hall up signal BU at the same time. When no hall calls in the same direction are simultaneously generated from the two main floors, the elevator car allocating operation is not performed. If the hall calls in the same direction are simultaneously generated from the two main floors on the first and B floors, the loading load on the two main floors on the first and B floors during the past 5 minutes in step S2. Find the ratio X. This is calculated by X = (cumulative boarding load value due to first floor landing call for the past 5 minutes) ÷ (cumulative boarding load value due to floor B landing call for the past 5 minutes). Then, in step S3, the allocation ratio Y when the first floor is allocated is obtained. This is calculated by Y = (cumulative value for 1st floor hall upcoming call in the past 5 minutes + 1) ÷ (cumulative value for B floor hall upcoming call in the last 5 minutes). Subsequently, in the same manner, the allocation ratio Z when the floor B is allocated in step S4 is obtained. That is, Z = (cumulative value for 1st floor landing call for the past 5 minutes) / (cumulative value for B floor landing call for the last 5 minutes + 1). Then, in step S5, the absolute value M (= | X−Y |) of the difference between the boarding load ratio X and the allocation ratio Y is obtained,
At S6, the absolute value N (= | X− of the difference between the boarding load ratio X and the allocation ratio Z
Z |). Then, in step S7, the above absolute values M
And the magnitude of N are compared, and when M is smaller than N, step
Proceed to S8 and assign a car to the hall upcoming call on the first floor. When M is N or more, the process proceeds to step S9, and a car is assigned to the hall upcall on the B floor. By repeating this series of routines, elevator cars are appropriately allocated to the first floor and the B floor.

Here, the elevator car allocating operation will be described with reference to specific numbers. For example, when the landing load ratio (traffic ratio) of the first floor and the Bth floor is 3: 4, the boarding load ratio obtained in step S2 of FIG. 2 is X = 0.75. At this time, if the cumulative car allocation values of the first floor and each floor of the B floor for the past 5 minutes were 16 times (the cumulative allocation value of the first floor) and 21 times (the cumulative allocation value of the B floor), the above second The allocation ratio Y = (16 + 1) /21Δ0.81 obtained in step S3 in the figure, and the allocation ratio Z = 16 / (21 + 1) Δ0.73 obtained in step S4. Therefore, the absolute value M = | 0.75-0.81 | = 0.06 obtained in step S5 and the absolute value N = | 0.75-0.73 | = 0.02 obtained in step S6. As a result, 0.06> 0.02 (that is, M> N), and step S9 is selected in the determination of step S7, and B
A car is assigned to a floor ascending call. That is,
The allocation arithmetic unit 1 outputs a B floor hall uplink call allocation signal BUW to a drive control device (not shown) of the elevator. Upon receiving this allocation command, the car that has finished the service on each upper floor directly responds to the hall upcoming call on the B floor. Also,
With this allocation, the cumulative car allocation on the B floor is updated.
(= 21 + 1) times, and this data is stored in the main storage device 3 of the allocation processing device 1.

Then, as in the above, the passenger load ratio (traffic ratio) on the first floor and the B floor remains 3: 4 (that is, the passenger load ratio X = 0.75 obtained in step S2 remains), and the elevator car allocation operation is performed. If continued, the cumulative car allocations for each floor of the 1st floor and B floor for the past 5 minutes will be 16 times (cumulative value of 1st floor) and 22 times (cumulative value of B floor allocation). The allocation ratio Y obtained in S3 is Y = (16 + 1) /22Δ0.77, and the allocation ratio Z obtained in step S4 is Z = 16 / (22 + 1) Δ0.70. Therefore, the absolute value M = | 0.75-0.77 | = 0.02 obtained in step S5, and the absolute value N = | 0.75-0.70 | = 0.05 obtained in step S6. As a result, 0.02 <0.05 (that is, M <N), and this time, step S8 is selected in the determination of step S7, and the car is assigned to the hall upcall on the first floor.
That is, from the allocation arithmetic unit 1, the first floor hall uplink call allocation signal 1UW
Is output to the drive control device (not shown) of the elevator. Upon receiving this allocation command, the car that has finished the service on each floor above responds directly to the landing call on the first floor.
Further, this time, the total value of the first floor car allocation is updated to 17 = (16 + 1) times by this allocation, and this data is stored in the main storage device 3 of the allocation arithmetic unit 1.

In this way, when a landing call for the first floor and a landing call for the B floor occur at the same time, a car is assigned according to the boarding load ratio (= traffic ratio = congestion ratio) for the past five minutes.

As described above, in the elevator car allocating apparatus according to this embodiment, it is possible to simultaneously generate hall calls in the same direction from a plurality of main floors, such as two main floors on the first floor and the B floor. The boarding load detection means (see step S1 in FIG. 2) for detecting, and the boarding load ratio X from the boarding load cumulative values of the plurality of main floors during the past fixed time from the time of detection,
Further, an allocation ratio Y and an allocation ratio Z in the case of allocating to a plurality of main floors where hall calls in the same direction occur at the same time are obtained, and further, the boarding load ratio X and each allocation ratio Y and allocation ratio Z are obtained. The absolute values M, N of the differences between the car loading ratios X and the allocation ratios Y and Z are assigned to the plurality of main floors according to the absolute values M, N of the differences. Car allocating means comprising steps S2 to S9 to be carried out.

Therefore, even when there are multiple congested floors, such as during work hours, a car can be properly used for the multiple main floors. It is possible to prevent passengers from being left unloaded, and to quickly transport passengers to a desired floor. In addition, even if the degree of congestion of the plurality of main floors changes, the car is allocated according to the change of the degree of congestion, so that uniform service can be provided to the plurality of main floors. Further, according to this elevator car allocating device, the main floor may be above ground or underground, so that any main floor can be targeted, and any main floor can be targeted. The service of can be improved.

As a result, regardless of the number of elevators installed, it is possible to provide uniform service to a plurality of main floors according to changes in the congestion time zone, and it is possible to quickly eliminate congestion of the plurality of main floors.

By the way, in the above-described embodiment, the ratio of the traffic volume on the main floor (congestion ratio) is set as the boarding load ratio during the past fixed time (5 minutes), but it may be a fixed ratio determined for each day of the week, or an information input device. The ratio may be the ratio of information values input by a manager or the like, or the ratio of the information values of waiting passengers detected by the hall passenger number detecting device. Further, in the above embodiment, the main floor has two floors, the first floor and the B floor, but it is naturally applicable to the third floor and above.

[Effects of the Invention] As described above, the elevator car allocating apparatus of the present invention detects that a hall call in the same direction is simultaneously generated from a plurality of main floors by the hall call detection means, and from the time of detection, The boarding load ratio is calculated from the accumulated boarding load values of the plurality of main floors during the past certain period of time, and each allocation is made when the boarding calls in the same direction are simultaneously distributed to the plurality of main floors. Then, the absolute value of the difference between the boarding load ratio and each allocation ratio is calculated, and the car to the plurality of main floors is determined according to the absolute value of the difference between the boarding load ratio and each allocation ratio. Is assigned.

Therefore, even when there are a plurality of congested floors, regardless of the number of elevators installed, it is possible to prevent the main floor from being overcrowded or left unloaded, and to quickly transport passengers to a desired floor, and Even if the degree of congestion of the main floor changes, cars are assigned according to the change of the degree of congestion, and any main floor can be targeted, so changes in the congestion time zone Accordingly, the uniform service can be provided to the plurality of main floors, and the congestion of the plurality of main floors can be quickly eliminated.

[Brief description of drawings]

FIG. 1 is a block diagram showing an allocation arithmetic unit of an elevator car allocation device according to an embodiment of the present invention, and FIG. 2 shows an example of car allocation operation by an elevator car allocation device according to an embodiment of the present invention. It is a flowchart. In the figure, 1: Allocation arithmetic unit 2: Central processing unit 3: Main memory 4a: 1st floor car position signal 4b: Bth floor car position signal 5: Car load signal 1U: 1st floor hall Upcall signal BU: B floor hall Uplink signal 1UW: Ground floor uplink call allocation signal BUW: Floor B floor uplink call allocation signal. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

Claims (1)

(57) [Claims] 1. A hall call detecting means for detecting that hall calls in the same direction are simultaneously generated from a plurality of main floors, and a boarding of the plurality of main floors for a certain time in the past from the time of detection. The boarding load ratio is obtained from the cumulative load value, and each allocation ratio is calculated when it is divided into a plurality of main floors where hall calls in the same direction occur at the same time, and further, the boarding load ratio and each allocation ratio And a car allocating means for allocating cars to the plurality of main floors according to the absolute value of the difference between the boarding load ratio and each allocation ratio. Elevator car allocation device.