JPS6153978B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator control method that is particularly effective in high-rise buildings with a large number of floors, where a plurality of elevators serving a plurality of floors are installed in parallel.

Generally, in order to provide efficient elevator service using a plurality of elevators, a fully automatic group sharing system is adopted in which the movements of each elevator are organically related to each other and operation is controlled according to traffic conditions. That is, each elevator has a service zone in which it only responds to hall calls in front of it when viewed from its respective driving direction, and therefore, when a hall call occurs on a certain floor, that floor is designated as a service zone. An elevator contained within responds to and services the hall call.

This will be explained with reference to FIG. 1, taking as an example a case where two elevators, A and B, service a building with 10 floors. For example, if Unit A is located in the ascending direction of the 8th floor and Unit B is located in the descending direction of the 4th floor, the service zones will generally be as indicated by the arrows. There will be a rise in floors. That is, when focusing on a certain floor, service is provided by sequentially responding to hall calls (hereinafter referred to as front calls) on floors located in front of the elevator when viewed from the direction of elevator operation. Therefore, for example, if there is a hall call in the descending direction on the 6th floor, this call is a forward call for machine A, so it is decided that machine A will respond, and if there is a hall call in the ascending direction on the 3rd floor,
This call is a forward call for car B, and it is decided that car B will respond.

By the way, in this method of servicing the front calls of each elevator as the area assigned to each elevator, the hall calls on the back floor (hereinafter referred to as "back calls") are not responded to when viewed from the direction of elevator operation, and as a result, Depending on the layout of the elevators, the waiting time in the hall can often be very long. This phenomenon is particularly noticeable in high-rise buildings with a large number of service floors, and this will be explained in the case where two elevators, A and B, service a building with 20 floors as shown in FIG. For example, consider a case where car A is currently on standby after responding to all calls on the 18th floor, and car B is located on the 3rd floor in the descending direction. Now, if calls occur to the 5th floor and the 16th floor in the upward direction, these calls are both in the service zone of B, and are behind calls for A, so B will respond sequentially and provide service. I will do it. At this time 5
Passengers waiting on the 16th floor do not have to wait that long, but those waiting on the 16th floor will have to wait until the arrival of plane B, even though plane A is waiting directly above them, and during this time, passengers waiting on planes on other floors will If there are many upward calls,
Service for customers waiting on the 16th floor will further deteriorate.

The present invention has focused on these points and aims to provide an elevator control method that reduces the above-mentioned disadvantages and provides more efficient service. In other words, in the present invention, the arrangement of each elevator is detected, and if the interval between the elevators is greater than or equal to a predetermined number of floors, and a back call occurs within a predetermined number of floors from the position of the waiting elevator, the back call is detected. This is an attempt to solve the above-mentioned inconvenience by moving the waiting elevator to the position where the call is from the front so that the elevator can respond.

A case in which the control method of the present invention is applied to the state shown in FIG. 2 will be described below with reference to FIGS. 2 to 4. FIG. 4 is an example showing the circuit configuration of the A machine, and the same applies to the B machine, and since it can be easily inferred from this, the explanation will be omitted. Reference numeral 2a is an elevator car location detection device which inputs the car position signal 1a of car A and the car position signal 1b of car B, and determines whether the service zone for the front call of car B, that is, the rear call zone of car A, is on a predetermined floor. When the number is greater than the number, the signal 3a becomes "1". For example, if we now have a predetermined number of floors,
If it is set to 10, in the case of Figure 2, the service zone of Unit B has a total of 20 floors from the 3rd floor down to the 17th floor as shown by the arrow > 10, so signal 3a is "1".
becomes. Reference numeral 4a indicates a call detection device behind car A, and when a hall call occurs within a predetermined number of floors from the position of car A, a signal 5a becomes "1". For example, if the predetermined number of floors is set to 5, in Figure 2 there is a call in the ascending direction on the 16th floor, which is 5 from the position of Unit A.
Since this is a rear call within the floor, the signal 5a becomes "1". Reference numeral 6a is a response end detection device for all calls of car A, which completes all responses to calls in the car and hall calls in the service zone of car A, and detects when signal 7a is set to "1" while waiting at an arbitrary position. Become. In Figure 2, there are currently no calls for the service zone 18th floor up to 4th floor down, which is the forward call for Unit A, and it is waiting on the 18th floor, so signal 7
a becomes "1". 8a is an AND gate, and currently all of the signals 3a, 5a, and 7a are "1", and the signal 9a is "1". Reference numeral 10a denotes a pseudo call generating device for the A car, which generates a pseudo call 11a to the A car at a position a predetermined number of floors away from the A car when the signal 9a is "1". This pseudo call 11a is a call that does not depend on passengers for moving the car in the direction of the rear call, and is an in-car call or a front call.
For example, if the predetermined number of floors is 5, in FIG. 2, the signal 9a is "1" as described above, and the pseudo call 11
As a, an in-car call for the 13th floor or a hall call for the 13th floor in the descending direction occurs in car A. Then of course A
Car No. A responds to this pseudo call and goes straight to the 13th floor, but since it is a pseudo call, Car No. A finishes responding to all calls when it arrives at the 13th floor and becomes on standby. FIG. 3 shows this state. Third
As you can see from the diagram, at the same time that Aircraft A is on standby on the 13th floor, a call from the 16th floor upward direction becomes a forward call for Aircraft A, so Aircraft A responds and provides service. Even if a rear call occurs when the A car arrives at the 13th floor, the call from the ascending direction of the 16th floor will become the forward call for the A car, so the output signal 7a of the call determination device 6a will be "1". follow
The output signal 9a of the AND gate 8a also does not become "1", and the pseudo call 11a does not occur, and the A machine is 16
I will be leaving for the floor.

In the above embodiment, the pseudo call 11a is set at a position a predetermined number of floors away from the A car, but this is set at the farthest floor among the plurality of rear calls that occur within a predetermined number of floors from the A car (for example, the rear call If the car is above the car, the same effect can be obtained by setting it to the top floor of multiple rear calls. For example, in the case of Figure 2, if the predetermined number of floors is 5, then floors 13 to 17
A pseudo call is generated on the lowest floor, that is, the 16th floor, of the back call that occurs on the floor.

As explained above, in the present invention, when a background call occurs near a waiting elevator, and an elevator that uses that call as a service zone exists far away, resulting in a decline in service, the present invention By giving a pseudo call, the car moves in response to the pseudo call, and as a result, the rear call becomes a front call and can be serviced. In other words, the present invention does not change the service zone of a car on standby or make it directly respond to a call behind it, but instead changes the system in which only the call in front is always the service zone by giving a pseudo call under certain conditions. Therefore, even in existing elevators, great effects can be obtained by simply adding a circuit as shown in FIG. 4, without changing the conventional circuit.

In the above description, the value of each predetermined number of floors is not limited to the above-mentioned embodiments. For example, if one unit stops on the same floor for a long time to clean a building at night, Further effects can be expected by setting the predetermined number of floors in the rear call detection range of other elevators to a larger value in a case where each floor is stopped in operation, etc., depending on the operating situation. Furthermore, the control method according to the present invention is not limited to the case where two elevators are installed in parallel as in the above embodiment, but any number of elevators may be used as long as the forward call is operated as each service zone. It is clear that this method can be applied even if they are installed side by side, and furthermore, with regard to the number of floors, this method will be more effective as the number of floors increases, and the better the service will be. I can do it.

[Brief explanation of the drawing]

1 to 3 are explanatory diagrams of operating operations, and FIG. 4 is an example of a circuit configuration for carrying out the present invention. 1a, 1b...car position signal, 2a...car placement detection device, 4a...back call detection device, 6a...
...Response completion detection device for all calls, 8a
...AND gate, 10a...Pseudo call generator.

Claims (1)

[Claims] 1. In a system in which a plurality of elevators are in service on a plurality of service floors, and each elevator responds to a hall call in front of the position of the elevator, the arrangement and back of each elevator It detects the presence or absence of a call and the completion of responses to all in-car calls and assigned hall calls, and detects a back call within a predetermined number of floors from the position of an arbitrary elevator that has finished responding to all calls. If the distance between the elevator that exists and whose service zone is the back call and the elevator that has finished responding to all the calls exceeds a predetermined value, a pseudo call is sent to the elevator that has finished responding to all the calls. An elevator control method characterized in that the elevator is moved in the direction of the rear call. 2. The elevator control method according to claim 1, wherein the pseudo call is a call for moving the elevator, which has finished responding to all the calls, by a predetermined number of floors. 3. The pseudo call is a call that moves the elevator from the position where the elevator has finished responding to all the calls to the farthest floor among the multiple back calls existing within a predetermined number of floors. An elevator control method according to claim 1, characterized in that: