JPH01236177A - Control method for elevator - Google Patents

Abstract

PURPOSE:To equalize service at the time of a selection control method control, by, in the case of the next stopping riding place calling floor and a riding place calling floor with a longer waiting time existing, giving priority to the service of the latter. CONSTITUTION:When the operation of an elevator is controlled by the method of selection control, an arrangement is made so that when the next stopping floor is the one to stop in response to a riding place calling and there is a riding place calling floor whose waiting time is anticipated to be longer than that of the next stopping floor which is made to be passed once and put off, the next stopping floor may be once passed and the floor with the longer waiting time may be able to be responded in priority. As a result, the sequence controller 3 of this elevator has an operation function by means of the selection control method, and the sequence action of the whole of the elevator is controlled. Also, a movement controller 4 has a function to conduct the decision of whether or not deceleration to a stopping floor should be done, and controls the movement of a cage. At the time of control, a sequence information signal 7, a deceleration decision demand signal 8 and a deceleration decision response signal 9 are outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for controlling an elevator that services a plurality of floors in response to hall calls and car calls.

[Conventional technology and problems]

The most common operating method for operating an elevator independently is the (directional) shared fully automatic method.

A large number of calls by the car call button and the hall call button are simultaneously registered, and the car is activated in response to the calls. While driving in one direction, the system responds to calls in the same direction one after another, and when there are no more calls in front, it automatically reverses the driving direction, continues to drive in order to answer calls in that direction, and stops when there are no more calls. be. In the following explanation, this method will be referred to as the celere collection method.

According to this selection method, for example, as shown in Fig. 8, a landing call jD for floor j in the descending direction is generated, and while car A is traveling in the ascending direction to respond to this, a call for the landing on floor i in the ascending direction is generated. Assuming that a hall call "ill" occurs, car A first responds to floor i and stops, then responds to car calls derived from there, and then responds to the call on the third floor. in this case,
The waiting time is very short on the i floor, while it is long on the j floor, causing variations in the waiting time at each landing.

In this way, the call response order is determined by the car position and driving direction in the Celebration system, and since there is no time element (waiting time, etc.) as a control variable, waiting times at each landing vary, and long waiting times occur. There is a problem in that even if this occurs, it cannot be avoided.

[Means for solving problems]

The present invention has been made to solve the above-mentioned problems, and in a control method for an elevator that operates in a celebratory manner, when the next floor to be stopped is the floor to be stopped in response to a hall call, the Calculate the expected waiting time on that floor assuming that the person will pass through once, and the expected waiting time on other floors where there is a hall call, and if the expected waiting time on that floor is less than a predetermined value and the other floors If the expected waiting time is smaller than the maximum value of the expected waiting time, it means that the waiting time for that floor is longer than the waiting time for that floor when the waiting time for that floor is postponed after passing through that floor once. When there is a long-term call that is expected to be long, the floor of the long-term call is given priority to be answered by passing through that floor once.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. For convenience of explanation, the present invention is applied to an elevator installed on a pill on the 7th floor, and the judgment as to whether or not to pass the floor to be stopped in response to a hall call is made immediately before the start of deceleration. shall be taken as a thing.

FIG. 1 is a block diagram showing the overall configuration of an elevator system to which the present invention is applied. The device 3 is a sequence control device that has the function of operation using the conventional selector collection method and controls the sequence operation of the entire elevator (however, it does not judge whether or not deceleration is possible), and 4 determines whether or not deceleration is possible to a floor that can be stopped. 5 is a speed control device that controls the running state of the car such as speed, acceleration and deceleration, and 6 is a car drive including a power control system and a drive motor. 7 is a sequence information signal indicating the elevator status such as the current floor (selector) of the car and the floor where it can be stopped (preceding selector); 8 is a deceleration judgment request signal requesting a judgment as to whether deceleration to a floor where it can be stopped is possible; 9 is a deceleration judgment request signal; This is a deceleration judgment response signal that instructs prohibition/permission of deceleration to a stoppable floor.

FIG. 2 (al is a table showing the timing of determining whether or not deceleration of the elevator is possible in this embodiment, and AJk represents the time from when the car departs from the J floor to when it is determined whether or not deceleration to the floor is possible.

FIG. 2 (bl is a table showing the deceleration time of the elevator in this example, and Djk represents the time from when the car departs from floor J and decides to decelerate to floor until it stops at floor K. .

For example, the timing for determining whether or not a car that departs from the first floor at time t = 0 (seconds) will decelerate to the second floor is shown in Figure 2 (a
Since A+i=2.2 from l, t = O+ A+
z = 2.2 C seconds], and if we decide to decelerate to the second floor at this time, from Figure 2 ('b), DI! = 3.5, so L = 2.2 + D + z"5.7 C seconds], that is, 5.7 seconds after the car leaves the first floor, 2
It will stop on the floor.

Since Ajk and Djk shown in FIG. I'll keep it.

FIG. 3 is a diagram showing an example of the occurrence of a hall call in order to explain the operation of this embodiment. indicates the direction of descent. For example, in Figure 3, h21
1 is a landing call in the direction of getting off on the second floor, and the occurrence time is t = -1
2 (seconds), and the destination floor is the 1st floor, which means that when the car arrives, a car call for the 1st floor is registered.

FIG. 4 is a flowchart showing the procedure of the part of the operation of the traffic management device 4 in this embodiment for determining whether or not to decelerate in response to a call.

The meanings of each symbol used in FIG. 4 are as follows.

s--Latest departure floor.

1-1---Current floor where stopping is possible (floor where deceleration is possible).

F - 11111 - Actual travel time from departure from the latest departure floor S to the present.

Hi x - Hall call duration up to now of hall call hix in the X direction of the first floor.

W i x - Expected waiting time for the first landing call hix.

MAXW-----The limit value that the expected waiting time for a landing hall should not exceed (here, 60 seconds), assuming that the passenger passes through the hall call floor where deceleration is currently possible without decelerating.

Next, the operation when the present invention is applied when hall calls occur in the order shown in FIG. 3 will be described using the flowchart in FIG. 4.

Note that in explaining the operation, the following assumptions (1) to (4) will be made for convenience.

■The door open time DO and door close time DC when the car lands on the floor are all the same regardless of the floor or driving direction, DO=DC=2
．． 5C seconds].

■Passengers will board and alight in the required time of O when the door is fully opened.

The landing waiting time for the 01st floor in the X direction is defined as the time from when the hall call hix occurs until the car stops landing on the 1st floor in the X direction and the door opens.

(2) The sequence control device 3 performs the same operation as the conventional selector collection method, except that it does not have the function of determining deceleration.

■Deceleration is performed after the departure of the car at timing Ajk shown in FIG. Performed when 9 is input.

■The sequence control device 3 sends the current floor (selector) of the car as a sequence information signal 7 to the operation control device 4.
, possible stop floors (preceding selector), running condition B (stopping, acceleration, deceleration, direction, etc.) are output every time they are updated.

(2) The timing at which the stoppable floor is updated in the sequence control device 3 is at the moment of startup when the car is stopped, and at the moment when the deceleration response signal 9 is manually issued to prohibit deceleration from the operation control device 4 while the car is running. If deceleration permission is input, the system will decelerate and stop on that floor, so it will not be updated, but will be updated at the moment of the next startup.

■In the traffic management device 4, among its internal information, s,
j! , hix, F, Hix, car call information.

The running direction of the car is constantly updated by referring to the sequence information signal 7, the signal from the hall call registration device, the signal from the car call registration device 2, and the timer information held by the device.

- The operation management device 4 has a function of predicting a car call that transitions from a hall call (derived when a car arrives). (However, since this method is not directly related to the present invention, its explanation will be omitted.

After making the above assumptions, the operation will be explained next.

Assume now that at time t=0 [seconds], the car has responded to the final car call, stopped on the 7th floor, and completed opening the door. At this point, as shown in FIG. 3, the hall call h2° in the direction of descending to the second floor has only occurred 12 seconds before, and no other hall calls have occurred yet.

The sequence control device 3 immediately starts closing the door in order to respond to the hall call htD, and after the door is closed, that is, t=o+D.
c=2.5C seconds], the car is started in the downhill direction, and the stoppable floor l is updated from the 7th floor to the 6th floor. The latest departure floor S of the car at this time is the 7th floor, and the departure time is t = 2.5 as described above.

Then, at the timing A76 shown in FIG. outputs a deceleration determination request signal 8.

On the other hand, the operation control device 4 constantly checks whether the deceleration judgment request signal 8 has been input or not, and sets the latest values for the latest departure floor S and the possible stop floor I while there is no human input. At the same time, the actual travel time F after departing from the latest departure floor S and the 'm duration H4x of each hall call hix are updated (steps J12 to J15).

When the deceleration determination request signal 8 is input at timing t=4.7, the process proceeds from step Jll to J16, and it is determined whether or not there is a car call at the stoppable floor l. If there is, a deceleration permission is output to the deceleration judgment response signal 9 (step J24), but at the current time t = 4.7, a new hall call is made. However, since there is no car call on the second floor (currently the sixth floor), the process advances to step J17. In step 17, it is determined whether there is a hall call to respond to on the second floor, but since there is no call at the moment, a deceleration prohibition is output to the deceleration judgment response signal 9 (step J
23).

Therefore, the sequence control device 3 does not enter deceleration operation, but updates the stoppable floor l from the 6th floor to the 5th floor. Currently 3 from the 5th floor
Since there are no hall calls or car calls up to the floor, the number of floors where the train can stop without decelerating is updated one after another until 1=2nd floor.

and t = 2.5 + A7g = 2.5 + 11.6”
When the deceleration judgment request signal 8 is output again at 14.1, there is a hall call hall to respond to on the stopable floor ffi (second floor), so the process advances from step J17 to J18, and this hall call is is the farthest call in the forward direction. Here, the farthest call in the forward direction is the last call to which a call can be answered without changing the current running direction of the car (the call can be made in either direction).

In this case, the car is in the downhill direction and there is no call ahead of hzll, so h is the furthest call in the forward direction, and if you pass this, the rest of the drive will be meaningless, so you must stop. be. Therefore, if it is the farthest call in the forward direction, the process proceeds from step J18 to J24, and a deceleration permission is output.

The sequence control device 3 starts the deceleration operation by this, and the deceleration time is D7□=2.8 from FIG. 2 (bl), so
It stops on the second floor at L-14,1+Dtz=16.9, and completes opening the door at t=19.4, 2.5 seconds later. At this time, the waiting time for Nori is 19.4 + 12 = 31.4
C seconds].

Here, the first floor car call is registered by the passenger who boarded from the second floor, so the sequence control device 3 registers t = 19.
4+D At C=21.9, the door is closed and the car is started in the downhill direction.

The next deceleration judgment is L = 21.9 + Az+ = 24.1
However, the hall call h+u is registered on the floor f (1st floor) where the train can stop at this time (at the time of t=22.0).
Since a car call is registered at the same time, it is necessary to stop, and a deceleration permission is output (steps J16 and J24).
). And t −24,1+ D! I + DO=
The car that arrived at the 1st floor at 30.1 and completed its door opening has the 7th floor landing call already registered above and the 3rd floor car call currently registered on the 1st floor, so t = 30.1+ D
At C=32.6, the door is closed and the engine is started in the ascending direction from the first floor.

When t = 32.6 + A, □ = 34.8, a decision is made to decelerate on the floor 2-2 where it is possible to stop, but since there are no car calls or hall calls to respond to on the 2nd floor, a deceleration prohibition signal is issued. It is output and passes through the second floor. and t=32.6+A, 5=
At 37.6, a deceleration determination is made on the 1st to 3rd floors where the vehicle can be stopped. Since the car call is now registered on the 3rd floor, deceleration is permitted (steps J 16 and J 24), and the car stops on the 3rd floor at t 37.6 + D l3 = 40.4, t = 40.4 + Door opening completed at DO=42.9.

Next, in order to respond to the hall call h'ID, the sequence control device 3 starts the car in the ascending direction at the same time as the door is closed at t = 42.9 + DC = 45.4, and the car is started in the ascending direction when the car can be stopped at the 4th floor. When t=45.4+A34=47.6, a deceleration determination request signal 8 is output.

At this time, the call status is newly registered at the time of the landing call h7° and the landing call h au'A<t = 46.0 in the ascending direction of the 4th floor, and therefore, the possible stop floor l = 4th floor. There is a hall call to be answered, and the process proceeds from procedure J17 to J18. Now above the hall call hsu is the hall call. Therefore, the landing call h4U is not the furthest call in the forward direction, and therefore the passenger management device 4 decelerates in response to this landing call h4u, and then passes by once and services another call. It is determined in steps J19 to J22 whether it is better to respond later. This judgment is based on the expected waiting time for each hall call assuming that the car has passed the -1 hall call h411, in this case, if the car responds to the hall calls in the order of h'1D = h4u, that is, the 7th floor -h? First, in step 19, the car calls that will transition from the hall calls are predicted in step 19 in order to make a judgment based on the expected waiting time of each hall call when the car calls are stopped in the order of the floors - the fourth floor of the car calls that transition from (derived from) 11. Here, it is necessary to predict the car call that will transition from the 7th floor landing call h7D, and it is now assumed that the 1st floor is predicted. Therefore, after passing the 4th floor, the 7th floor-1
The expected waiting time for each hall call when stopping in the order of floors - 4th floor is determined by step 20.

At the time of t = 47.6, the latest departure floor s = 3rd floor, the actual running time from the departure from the 3rd floor to the present F = 2.2 [seconds]
, duration of hall call hto H1゜-43,6 [seconds],
The duration of hau is H4Ll = bs (seconds),
On the other hand, the expected waiting time Wix for the hall call hix can be found by . The expected waiting time W7D of h4Ll and the expected waiting time W4u of h4Ll are respectively as follows.

W, o = H? . +Ast+Dst+D
OF= 43.6 +9.4 + 2.8 + 2.5
-2.2=56.1 C seconds] W4Ll=H4゜+Ai7+ 03t+ DO+ DC
+At++ Dt++ DO+D C+ Al1 +
DI4 + Do F=1.6+9.4+2.8+2
．． 5+2.5+ 13.8+2.8+ 2.5 + 2
．． 5 + 7.2 + 2.8 + 2.5-2.2=
50.7 (seconds) Once the expected waiting time for each landing is determined in this way, the next step is to calculate the waiting time W for the landing call that is currently determining whether or not to decelerate.
It is determined whether λX (here, W 4 u ) is not the maximum value of the expected waiting time Wix (here, W4u, W, and D) of each landing, that is, whether it is smaller than the maximum value (step J21 ), if it is the maximum value, it means that the service on that floor will be the worst by passing through that floor, so a deceleration permission is outputted (step J24), and the vehicle decelerates on that floor without 1iliJ. If it is not the maximum value, even if you pass through that floor and postpone it, it means that there is a floor with even worse service than that floor.
Proceed to step J22 without outputting deceleration permission. Here Wa
It is determined whether x is smaller than a predetermined value MAXW. Even if Wfx is not the maximum value, if the expected waiting time on that floor is so long that it exceeds a predetermined value by passing through the respond.

In this way, only when the conditions of both steps J21 and J22 are satisfied, the process proceeds to step J23, outputs a deceleration prohibition signal, and temporarily passes through that floor.

Now, Wl, is smaller than the value of W, D, and MAXW(
60 seconds), so proceed to step J23 and pass through the 4th floor once. Thereafter, the sequence control B device 3 and the operation management device 4 respond to the hall call hfe while repeating the deceleration judgment in the same manner as described above, and then respond to the car call hfe on the first floor, the hall call h4Ll in the upward direction on the fourth floor, and so on. From there, the car calls on the 5th floor are serviced one after another, and t = 1.
End service for all calls on 07.4.

FIG. 5 shows the transition of the internal information of the operation control device 4 and the contents of each judgment at the time of each judgment of deceleration to the floor where the hall call is registered in the above-mentioned car operation.

Further, the car operation schedule in this embodiment is shown in FIG. 6 (al), and the waiting time and service completion time of each landing at that time are shown in FIG. 7 (al).

In addition, Figure 6 shows a car operation diagram when the car is operated using the conventional celere-collect system for the same call occurrence situation.
Figure 7 shows the waiting time and service completion time at each boarding point at that time (bl).

As is clear from Figure 7, in the conventional celere collection system, 6
7th floor landing direction hf with a long wait of over 0 seconds
In the present invention, the waiting time for e is the waiting time for a hall call.

By passing through HAU for the first time, we were able to shorten the waiting time for HAU to 60 seconds or less, and the waiting time for the HAU service increased due to the postponement of the HAU service for the first time. The waiting time is shorter than that of

Furthermore, the service completion time from responding to a hall call to arriving at the destination floor by a car call is particularly long, instead of increasing the value of h4Ll, which is particularly short according to the conventional celere collection system. The latter is abbreviated.

In other words, long waiting times for hall calls have been reduced and services have been made more equal.

Note that in the above explanation, the decision as to whether or not to respond to a target hall call is made at the timing of determining deceleration for that call, but this is not limited to this. You may do so at any time or any other suitable time before that.

Furthermore, passing a hall call may be accomplished by manipulating the call, such as once deleting the call registration and re-registering it after passing, instead of prohibiting deceleration.

The expected waiting time for the hall may be calculated not only by predicting car calls but also by including hall calls that are likely to occur in the future.

When determining whether or not to respond to a target hall call, if the probability of predicting a hall call that is likely to occur in the future or the certainty of the expected waiting time at the hall is low, be sure to respond without passing through. Good too.

Further, the present invention can also be applied to a fully automatic group sharing system in which a plurality of elevators are operated in conjunction with each other in a sequential manner.

(Effects of the Invention) According to the present invention, based on the celebratory system, when the next floor to stop is the floor of the landing call, even if you pass through that floor once and respond last. If there is another boarding call where the service is deteriorating and the waiting time exceeds the waiting time, the service for the former will be postponed and the service for the latter will be prioritized. It is possible to prevent the occurrence of long service life and equalize the service (landing waiting time and service completion time) without compromising the functions of the above.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of an elevator system to which the present invention is applied, FIG.
'b) is a table showing the deceleration time of the elevator in this embodiment, FIG. 3 is a diagram showing an example of the occurrence situation of a hall call in this embodiment, and FIG. 4 is a table showing the operation of the traffic control device in this embodiment. , a flowchart showing the procedure for determining whether or not deceleration is possible in response to a call, FIG. A car operation diagram when the present invention is applied, Fig. 6 [available] is a car entrainment diagram in the conventional method, and Fig. 7 ta+ is a diagram showing the waiting time and service completion time at each landing when the present invention is applied. , FIG. 7('b) is a diagram showing the waiting time and service completion time at each landing in the conventional system, and FIG. 8 is a diagram showing the relationship between calls and cars. 1991 Hall call registration device 200. Car call registration device 321. Sequence control device 414. Operation management device 510. Speed control device 61. , car drive device 710. Sequence information signal 8, , , 17Ji, speed judgment request signal 936. Deceleration Judgment Response Signal Patent Applicant Fujichik Co., Ltd. AL (seC) (See) Fig. 2 Fig. 3 Fig. 7 Fig. 4 Fig. 2 8th Bad Technique 3 Seller Fu Seisho (Method) % Formula % 1. Incident Indication of 1985 Pre-patent No. 265800 2, Name of the invention Elevator control method 3, Relationship with the person making the amendment Patent applicant Postal code 567 Address Ibaraki Fusho 1-28-10 4, Amendment order Date: March 28, 1999 5, column 6 of the brief explanation of the drawings of the specification subject to amendment, from lines 6 to 9 of page 21 of the specification of contents of the amendment:
FIG. 7 (al is a diagram showing the waiting time and service completion time at each landing when the present invention is applied, and FIG. 7(b) is a diagram showing the waiting time and service completion time at each landing in the conventional system. '' has been corrected to read, ``Figure 7 is a diagram showing the waiting time and service completion time at each landing in the case of applying the present invention and the case of applying the conventional method.''

Claims (1)

[Claims] In a control method for an elevator that operates on a plurality of floors by sequentially responding to a hall call and a car call using a fully automatic (directional) shared system, the next floor to be stopped is set to a hall call. If it is a floor that responds and stops, calculate the expected waiting time for that floor assuming that you will pass through that floor once, and the expected waiting time for other floors that have a hall call, and calculate the expected waiting time for that floor. is below a predetermined value, and
When it is smaller than the maximum expected waiting time of the other floor,
A method for controlling an elevator, characterized in that the elevator passes through the floor once.