JPS6337025B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an elevator hall call assignment device that manages a plurality of elevators in a group using a directional ring system, and particularly relates to an elevator hall call assignment device that manages a plurality of elevators in groups using a directional ring method, and in particular, the present invention relates to an elevator hall call assignment device that manages a plurality of elevators in groups using a directional ring method. The present invention relates to an improved hall call allocation device.

[Conventional technology]

Customers waiting in an elevator hall can see the approach and arrival of elevators if elevator position indicators are installed in the hall. Therefore, if the elevator ignores the hall call for that floor and passes through, it will give an unnatural feeling to the waiting customers.
So, even though I pressed the UP button on my own floor,
A directional ring system is used to prevent elevators coming up from the floor below from passing through the hall. In the directional ring system, the hall calls on each floor are
The UP side is connected continuously, the DOWN side is also connected continuously, and the UP side and the DOWN side are further connected to form a continuous ring-shaped service zone. Taking into account the direction and positional relationship of each elevator within the service zone, the service zone in which each elevator should serve is defined as a hall call up to the preceding elevator in that direction.

[Problem to be solved by the invention]

The conventional directional ring system will be explained with reference to FIG. FIG. 1 shows the position of each elevator A and elevator B, the occurrence of a hall call, and the allocation state of the hall call at a certain point in time. Elevator B is in a stopped state and elevator A is in an ascending state. The service zone of elevator A is the SA where elevator A ascends, turns around at the top floor, descends, and reaches elevator B's position. Also, elevator B
The service zone is SB where elevator B descends, reverses itself at the bottom floor, and ascends until it reaches elevator A's position. In this state, according to the directional ring control, the hall call UP HU
HDs 1 to 2 and HDs 1 to 5 of DOWN are all assigned to elevator A, and no hall call is assigned to elevator B. In this way, elevator A will be in charge of many hall calls. Therefore, the lower DOWN hole number HD3~1
are UP HU1, HU2, DOWN HD5, HD
Elevator A will come after servicing 4, so
There may be a long wait. Meanwhile, elevator B
Since there are no hall calls in the service zone SB that he is in charge of, he is on standby. This results in poor operating efficiency of each elevator machine.

As described above, the conventional directional ring system has the drawback that even if a hall call within the service zone of a certain elevator is expected to have a long wait, other elevators cannot service that hall call.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator hall call allocation device that can reduce long waiting times as much as possible and improve operating efficiency.

[Means to solve the problem]

The present invention provides an elevator system in which a plurality of elevators operate in a ring shape between multiple floors.
For a hall call in the opposite direction between the elevator and the second elevator, if the second elevator can arrive earlier, the second elevator is assigned to the call in the opposite direction, and the direction of the second elevator is reversed at the called floor; The aim is to reduce long waiting times and increase operational efficiency.

That is, in order to achieve the above object, the present invention configures the service zone of each elevator for hall calls on each floor in a ring shape, and the service zone to be serviced by each elevator is divided between the service zone and the preceding elevator in that direction. In a hall call allocating device for a directional ring type elevator, which is equipped with a means for allocating a hall call to an elevator that can service the direction in the shortest time, a hall call that occurs between a preceding first elevator and a second elevator is Means for determining a time during which a hall call can be serviced in the opposite direction when viewed from a second elevator to which a hall call is not assigned in that direction; an assignment to the first elevator by the directional ring method; and the second elevator. The present invention proposes an elevator hall call allocating device comprising means for selecting the assignment with the shorter service time among the assignments in the opposite direction to the elevators and issuing a hall call assignment command to each elevator.

[Effect]

In the present invention, for each hall call, the reachable time of a plurality of elevators is evaluated for each hall call, and among the hall calls that occur between the preceding first elevator and second elevator, When it is evaluated that the elevator can reach the hall call in the opposite direction quickly, the second elevator is assigned to the hall call in the opposite direction, so the hall call can be serviced in the shortest possible time, reducing long waiting times and improving operational efficiency. Go up.

〔Example〕

Examples of the present invention will be described below.

In Figure 2, A and B respectively refer to the elevator and its position (this position does not refer only to the actual car position of the elevator, but when the elevator is running, it is located at an appropriate position for the elevator to decelerate). (This is the position that is ahead by the distance.) Further, an arrow within a frame indicating an elevator indicates the direction of operation, and an arrow without an arrow indicates a standby state (there is no hall call to be serviced within the service zone of that elevator).

In this case, HU1~2 are UP hall calls, HD
1 to 6 indicate that a DOWN hall call is registered. Further, VAU and VAD indicate the service zones for the UP hall call and DOWN hall call of the A elevator, respectively.

Now, service evaluation values are determined for hall calls on each floor. The service evaluation value is the time (or a value proportional to the time) during which a hall call on that floor can be serviced when a hall call on that floor occurs under the current state of the elevator (direction and position).

For example, it is expressed as a numerical value proportional to the floor pitch of each floor, and all floors are the same (one floor is "1"). Elevator A is in the ascending operation, so the current location is set to "0", and as it heads to the upper floor it is marked "1", "2", etc. (VAU in the diagram), and at the top floor "3". Reverse and move down to "4", "5", "6", ... "11"
(VAD in the figure). In addition, elevator B is currently stopped and cannot respond to UP hall calls.
DOWN hall calls can also be serviced at the same value. Therefore, the current value is set to "0",
For UP hall calls, in the case of downstairs, call "1" and "2" for each floor (VBU1 in the figure). For the upper floors, "1", "2", "3", etc. for each floor.
Enter "5" (VBU2 in the diagram). In addition, for the DOWN hall call, if you are downstairs, the current location is set to "0", and each floor is numbered "1", "2" (VBD in the figure).
1) If you are upstairs, set the current location to "0",
``1'', ``2'', ``3'', ... ``6'' for each floor (in the diagram)
VBD2) Do it.

In such a state, according to the conventional directional ring system, the service zones of elevator B are the zones of VBU1, VBU2, and VBD1. On the other hand, elevator A is VAU and VAD
zone. Therefore, the hall call (HU
1 to 2 and HU1 to 6) are all assigned to elevator A, and the services of each elevator become unbalanced, causing a decrease in operating efficiency.

Therefore, in this embodiment, in order to prevent such a decrease in operating efficiency, hall calls HD1 to 4 between the preceding elevators A and B are newly added.
is a zone that can be serviced by elevator B waiting at the rear. This service zone is shown in the diagram.
It is indicated as VBD2. This will result in 2
Since the serviceable zones of the two elevators overlap, it is necessary to decide which elevator will serve each hall call.

Next, we will explain how to decide which elevator will serve you.

First, the service evaluation value of the hall call for elevator A of HD1 is as follows. Since elevator A is in the driving direction of UP, the floor where the elevator is located is set as "0", the upper floor as "1", and the upper floor as "2", but on the next upper floor,
Since there is no UP hall call, the
Set the DOWN hole call to "3". Similarly, below,
Now, as the service evaluation value increases as it decreases, as shown by VAU and VAD in Figure 2,
The service evaluation value of elevator A for HD1 is "11". On the other hand, regarding elevator B,
Since the direction of operation is not determined (service is possible in either direction), the method for determining the service evaluation value is different from elevator A. In other words, it is determined only from the physical positional relationship from the stopped position of the elevator. Therefore, the service evaluation value of elevator B for HD1 is:
As shown in VBD2 in FIG. 2, it is "1", which is smaller than "11" for elevator A, so the hall call of HD1 is assigned to elevator B. Thereafter, HD2-3 are similarly assigned to elevator B, but HD4 has the same service evaluation value for both elevators. If the service evaluation values are the same, it may be determined in advance which one to use, and in this embodiment, it is assigned to elevator A.

Therefore, according to this embodiment, elevator B
will service hall calls for HDs 1 to 3, reducing the burden on elevator A, improving overall operational efficiency, and shortening the waiting time for HDs 1 to 3.

Another embodiment of the invention is shown in FIG.

In the figures, the same reference numerals as in the embodiment of FIG. 2 represent the same parts and the same functions. This embodiment differs from the embodiment shown in FIG. 2 in that the service evaluation value of elevator A is different and the hall call allocation method is different.

In the example shown in Fig. 2, the service evaluation value was calculated considering only the floor pitch, but in reality, the downtime due to hall calls and car calls accounts for a large proportion of the service evaluation value, so these downtimes are It is preferable to take this into account.

Therefore, in this example, the service evaluation value is calculated as the time due to floor pitch (1 is added for each floor) and the stop time due to hall calls and car calls (acceleration/deceleration time + door time). So 1
It is calculated based on "1" each time it stops). Service evaluation value VAU in Figure 3,
Values outside ( ) of VAD values indicate values that do not take into account downtime, and values inside ( ) indicate values that take into account downtime. The floor where elevator A is located is set as ``0'', and the upper floor is set as ``2'' by adding the value ``1'' from the floor pitch and the stop time due to the hall call, ``1''.
The service evaluation value for the hall call in the DOWN direction is also set to "4" because the hall call is assigned to the floor below it. The following calculations are made in the same way as the numbers in parentheses in the service evaluation value in Figure 3. Similarly, the calculations for elevator B are shown in the numbers in parentheses in VBD2.

Under these conditions, if we examine the allocated machine numbers for hall calls of HD1 to HD4 as in the example in Figure 2, we get the following:
It is clear that HD1-3 are assigned to elevator B. HD4 only by considering the floor pitch
is assigned to elevator A, but in this example, taking into account the stop time, the hall call of HD4 is assigned to elevator B.

Therefore, according to this embodiment, it is possible to allocate hall calls more in accordance with the actual situation than in the case of the embodiment shown in FIG.

4 and 5 are block diagrams of the circuits in the embodiment of FIG. 2 and the embodiment of FIG. 3.

In FIG. 4, HB indicates a hall call. R
is a directional ring circuit, which performs the hall call assignment shown in FIG. That is, this circuit allocates hall calls to each elevator using a directional ring method. A and B indicate elevators respectively, and when a hall call is assigned here, elevators A,
B executes the service in response to the hall call. AA1, AA2, AB1, AB2 are gate circuits, and only when the input signal does not enter the side marked with ○ (inverted symbol), the input signal from the other side is output as is, and the input signal is input to the ○ side. If it comes in, no signal will be output.

I is a circuit that realizes the present invention, and is a hall call allocation circuit between A and B that allocates hall calls between the preceding elevator and the elevator located at the rear to the elevator side with priority (lower value) in service evaluation value. The internal blocks of the circuit are shown in FIG. CA and CB in FIG. 5 are service evaluation value calculators that calculate and output service evaluation values for elevators A and B, respectively. The comparator V compares the service evaluation values output from the elevator service evaluation value calculators CA and CB, and outputs a hall call assignment to the one with the smaller value.

In such a circuit, the hall call
When the HB is registered, it is first input to the directional ring circuit R, and a hall call assignment signal is output to the optimum elevator A or B by directional ring control. At the same time, the registered hall call is input to the hall call allocation circuit I between A and B, and if the hall call is between the preceding elevator and the elevator located at the rear, the elevator service evaluation value calculators CA and CB calculate the service evaluation value. Calculate and output to comparator V. Comparator V compares these values and outputs the signal ASA or ASB on the smaller side.

For example, in the output of the directional ring circuit R, if a hall call between elevators A and B is assigned to the elevator A side, the directional ring circuit R outputs a hall call assignment signal to the elevator A side, but at the same time Assuming that the service evaluation value calculated by the hall call allocation circuit I between A and B for this hall call is smaller on the elevator B side,
A hall call assignment signal is output from the A/B hall call assignment circuit I to the elevator B side. Since there is no output signal from the directional ring circuit R to the elevator B side, the gate of the elevator B gate AB1 outputs the output signal from the hall call allocation circuit I between A and B, and at the same time allocates it to B, the directional ring circuit・Turn OFF gate AA2 for elevator A to block output of the hall call assignment signal from ring circuit R to elevator A. As a result, a hall call assigned to elevator A by directional ring circuit R is not assigned to elevator A, but is reassigned to elevator B.

In addition, there are hall calls on other floors, and the directional ring circuit R has already been used for elevator B.
If the gate AB1 for elevator B is OFF and the output is blocked, a hall call between elevator A and elevator B will occur, and as mentioned above, the hall call between A and B will be assigned. Even if the circuit I outputs an allocation signal to the elevator B side, the hall call signal is not allocated to the elevator B. Furthermore, a hall call between elevators A and B is not prevented from being assigned to elevator A. That is, AA2 is turned on and the hall call signal is assigned to elevator A.

FIG. 6 shows a case in which the elevator B has a DOWN direction in the embodiment of FIG. 3.

In this case, since the elevator B has the DOWN direction, the hall call UP evaluation value VBU has a different value. This value can also be determined in the same manner as in the case of elevator A, so its explanation will be omitted.

As a result, as in the case of the embodiment in FIG.
Hall calls HD1 to HD4 are assigned to elevator B.

FIG. 7 is a flowchart showing the process flow of the present invention. This process is activated periodically every 32 msec. When this process starts, in step 100, information on hall buttons on all floors is input. In step 101, it is determined whether the hall button is ON or not. If it is determined that it is ON, in step 102, it is registered as a hall call. In step 103, service evaluation values are calculated for all elevators using the directional ring method, and in step 104, a hall call is assigned to the elevator with the lowest service evaluation value, and the process returns to step 101. Repeat this process for all floors.

If it is determined in step 101 that the hall button is not ON, it is determined in step 105 whether all floors have been completed, and if it is determined that the hall button has not been completed, step 1 is executed to check the hall button of the next floor.
Return to 01. On the other hand, if it is determined in step 105 that all floors have been completed, it is determined in step 106 whether or not there is an elevator with no hall call assignment. If it is determined in step 106 that there is no elevator to which a hall call is assigned, the process moves to step 109. On the other hand, if it is determined that there is a hall call, the process moves to step 107 and recalculation of the service evaluation value, which is characteristic of the present invention, is performed only for elevators to which no hall call is assigned. In step 108, the hall call assignment is changed to the elevator with the lowest service evaluation value, and step 1
At 09, a hall call assignment command is issued to each elevator.

〔Effect of the invention〕

According to the present invention, there is provided an elevator hall call allocation device that can reduce long waiting times as much as possible and improve operating efficiency.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the state of hall call allocation for each floor according to the positional relationship of each elevator according to the conventional method, Fig. 2 is a diagram showing the state of hall call allocation according to the present invention, and Fig. 3 is a diagram showing the state of hall call allocation according to the present invention. FIGS. 4 and 5 are block diagrams of the control circuits of the embodiments of FIGS. 2 and 3, and FIG. 6 is a block diagram of the control circuit of the embodiment of FIG. 3. FIG. 7, which is a diagram showing a case where the elevator B is in the DOWN direction in the example, is an operation flowchart of the present invention. R...Directional ring circuit, I...A.
Hall call allocation circuit between B.

Claims (1)

[Scope of Claims] 1. The service zone of each elevator for the hall call of each floor is configured in a ring shape, and the service zone to be serviced by each elevator is the hall call up to the preceding elevator in that direction. In a hall call allocating device for a directional ring elevator, which is equipped with a means for allocating a hall call to an elevator that can be serviced in the shortest time, the hall call that occurs between the first and second elevators in that direction is means for determining the time during which the hall call can be serviced in the opposite direction as viewed from the second elevator to which no call is assigned;
A hall call assignment for an elevator, characterized in that it comprises means for selecting an assignment with a shorter service time out of an assignment to the elevator and an assignment in the opposite direction to the second elevator, and issuing a command for assigning each hall call to each elevator. Device.