JP4969540B2 - Group management elevator - Google Patents

Description

  The present invention relates to a group management system that comprehensively manages the operation of a plurality of elevators, and is suitable for a vehicle in which a car position can be confirmed from a landing.

  Conventionally, in a multi-car elevator in which the upper car and the lower car can run independently in the same hoistway, the relative distance of the car from the current time until the direction is reversed is calculated, and this value is worse than a preset level value. In such a case, it is known to change the assignment of a hall call that has already been registered.

  Further, according to the position of the elevator, a zone for preferentially assigning a hall call to the elevator is set, and at least the zone and a predicted waiting time for the hall call are calculated to obtain an evaluation index. It is described in.

  Further, Patent Document 3 discloses that if there is an elevator with an estimated arrival time of an elevator to which a hall call is assigned exceeds a predetermined value and an estimated arrival time is shorter than that, the assignment of the hall call to the elevator is changed. Are listed.

  In addition, it immediately predicts the car to which the hall call is assigned, and when a car arrives ahead of that car, it temporarily switches the car position display of the hall to the arrival establishment display, thereby Patent Document 4 describes that the embarrassment and frustration to be given are alleviated.

JP 2007-223765 A Japanese Patent Laid-Open No. 1-2226676 Japanese Patent Publication No.55-11989 JP-A-8-81147

  In the above-mentioned prior art, if an optimal elevator is assigned to each hall call, a lot of waiting hall calls will occur in the crowded time zone, so the optimum elevator is assigned to all hall calls. , To improve the operation efficiency. As a result, the elevator frequently passes through the hall where the waiting passengers are present, and if the car position can be confirmed from the landing hall, the waiting passengers on that floor are uncomfortable.

Also, if there is a waiting customer so that the waiting customer is not uncomfortable, the assignment is changed to an elevator that passes through and the service is always provided on that floor, so that the operation efficiency is greatly reduced.
In addition, when the elevator passes through the floor where there are waiting passengers, the car position display is switched to the arrival probability display to make it difficult for the waiting passengers to notice the passage, depending on the partition between the landing side and the elevator side, Since the passing elevator can be seen from the waiting customer, the waiting passenger will notice the passing of the elevator.

  An object of the present invention is to solve the above-described problems of the prior art and provide a service with good driving efficiency without causing discomfort to waiting customers even when the car position can be confirmed from the landing.

In order to achieve the above object, the present invention manages the operation of a plurality of elevators, and when a hall call occurs, in a group management elevator that assigns an elevator that selects a car for each elevator and responds to the hall call, When an elevator is scheduled to pass through the floor where the hall call is registered, the elevator that is scheduled to pass due to the relative relationship with the elevator to be responded, the floor, and the elevator that is scheduled to pass is displayed in the hall. The relative relationship is determined based on the time at which the elevator to be answered and the elevator that is scheduled to pass are predicted to arrive at the floor, and the elevator that is scheduled to pass passes through the floor. When passing, the responding elevator and the elevator scheduled to pass are Calculating the estimated time to arrive in Kikai, the difference is, if it exceeds a predetermined time which does not give an unpleasant feeling after passing against waiting passengers who are on the floor, to the response assignment of the landing call The assignment is changed from the elevator to the elevator that is scheduled to pass, and if the predetermined time is not exceeded, the assignment is not changed .

  According to the present invention, in a situation where there is a waiting customer on the floor where the car position can be confirmed from the landing, if the waiting time is predicted to be long after the elevator passes, the passing is not permitted and the waiting time is predicted to be short. When passing, the passage is permitted, so that the discomfort caused by the passage can be reduced and the decrease in the operation efficiency of the elevator can be suppressed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an external view of an elevator hall. In the elevator, a car is moved up and down by group management control. Reference numerals 1a, 1b, and 1c denote elevator landing doors. On the upper side of the landing doors 1a, 1b, and 1c, there are provided car position display devices 2a, 2b, and 2c for the landing that can confirm the car position from the landing. A hall call registration device 3 that performs a hall call registration operation is installed between the hall doors 1a, 1b, and 1c. 30a is an upward landing button, and 30b is a downward landing button.

  FIG. 2 is an overall configuration diagram of the control unit, and includes a group management control device 11, a No. A control device 12, a No. B control device 13, and a No. C control device 14. The group management control device 11 is connected to the hall call registration device 3 of each floor including the upward hall call registration button 30a and the downward hall call registration button 30b shown in FIG. 1, and the hall call inputted by these operations. The allocation evaluation calculation is performed on the signal based on the position of the car of each car and the registered car call information, etc., and the optimum car is selected to respond to the hall call.

  The group management control device 11 is connected to the A machine control device 12, the B machine control device 13, and the C machine control device 14. Upon receiving a response instruction to the hall call from the group management controller 11, the A machine controller 12 controls the hoisting machine (not shown) for the elevator of the own car to raise and lower the elevator car to respond to the hall call. .

  Further, the No. A control device 12 is connected to the car position display device 2a, the No. B control device 13 is connected to the car position display device 2b, and the No. C control device 14 is connected to the car position display device 2c.

  FIG. 3 is a diagram for explaining the basic concept. A plurality of elevators are installed in a building on the 17th floor, and this time, two of them will be described. It is assumed that Unit A is on the 11th floor and Unit B is on the 16th floor.

  In the current state of FIG. 3, Unit A is traveling in the downward direction due to the hall call on the third floor and the car call on the first floor. Unit B is running in the downward direction due to the car call on the first floor. Under this situation, the operation service when a new landing call from the fifth floor is generated will be described.

  In the case of the prior art, Unit B is assigned to a new hall call on the fifth floor so that the waiting time of waiting customers on the third and fifth floors is reduced on average. Therefore, Unit A passes the hall call on the 5th floor. If Unit A is assigned to multiple landing calls at Unit B immediately after passing through the 5th floor, waiters on the 5th floor will wait for an elevator at the landing for a long time until Unit B arrives. I will give it. Also, if the assignment is changed to Unit A in this situation, the elevator that has passed once will be serviced, which will similarly give an uncomfortable feeling.

  In this example, when Unit A passes through the landing call generation floor, it calculates the time when Unit A and Unit B will arrive at the generation floor, and if the difference exceeds a predetermined time, a new one on the fifth floor is calculated. Change the hall call assignment from Unit B to Unit A, and stop Unit A on the 5th floor. This can reduce discomfort caused by long waits after passing through the elevator on the fifth floor. In addition, when the difference in time when it is predicted that the cars A and B will arrive does not exceed the predetermined time, the assignment of the new hall call on the fifth floor is not changed from the car B to the car A. Therefore, it is possible to more adapt to waiting customers and to suppress a decrease in overall operation efficiency.

FIG. 4 is a flowchart showing elevator assignment change.
The allocation change when the elevator passes the landing call generation floor will be described (step 1). The predicted arrival time at the scheduled passing floor of the car (No. A) to which the call of the elevator scheduled floor is assigned is calculated, and the calculation result is set to A ′ (step 2). The estimated arrival time of the elevator (No. B) passing through the scheduled passage floor is calculated, and the calculation result is set as B ′ (step 3). The difference between A ′ and B ′ is calculated, and if the difference is within a predetermined time (step 4), there is no change in allocation, and Unit A services the planned passage floor (step 5). However, if the difference between A 'and B' exceeds a predetermined time (step 4), the allocation is changed from No. A to No. B, and No. B services the planned passage floor (step 6).

  In this example, the elevator passage judgment of the floor where the hall call occurred was performed by comparing the estimated arrival time. The comparison target was the distance between the elevators, the floor where the elevator is currently located, the floor where the elevator can be stopped at the current time (Fig. 7), elevator display position (FIG. 8), numerical display on the car position display devices 2a and 2b, and the number of stop floors to the elevator landing call generation floor (FIG. 9). FIGS. 5 to 9 are diagrams illustrating cases where the comparison target at the time of the elevator passage determination is changed.

The external view of the hall of the elevator by one embodiment of the present invention. The block diagram which shows the whole structure of one Embodiment. Operation | movement explanatory drawing by one embodiment of this invention. The flowchart which shows the operation | movement by one embodiment of this invention. Operation | movement explanatory drawing by other embodiment of this invention. Operation | movement explanatory drawing by further another embodiment of this invention. Operation | movement explanatory drawing by further another embodiment of this invention. Operation | movement explanatory drawing by further another embodiment of this invention. Operation | movement explanatory drawing by further another embodiment of this invention.

Explanation of symbols

1a, 1b, 1c Landing doors 2a, 2b, 2c Car position display device 3 Hall call registration device 11 Group management control device 12 A machine control device 13 B machine control device 14 C machine control device 30a Upward landing button 30b Downward landing Button

Claims (1)

In the group management elevator that manages the operation of multiple elevators and assigns an elevator to respond to the hall call by selecting the elevator car when a hall call occurs,
When an elevator is scheduled to pass through the floor where the hall call is registered, the elevator that is scheduled to pass due to the relative relationship with the elevator to be responded, the floor, and the elevator that is scheduled to pass is displayed in the hall. The relative relationship is determined based on the time at which the elevator to be answered and the elevator that is scheduled to pass are predicted to arrive at the floor, and the elevator that is scheduled to pass passes through the floor. When passing, calculate the time that the elevator to be responded and the elevator that is scheduled to pass arrive at the floor, and the difference is from the discomfort after passing to the waiting customer on the floor When a predetermined time exceeds a predetermined time, the hall call assignment is scheduled to pass from the elevator that makes the response. If the activator to change allocation, does not exceed the predetermined time, the group management elevator characterized in that it does not change the assignment.

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