JPS5854457Y2 - Elevator group management control device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an elevator group management control device suitable for operating a plurality of elevators arranged in parallel.

Recently, as buildings become taller, there is a tendency for many elevators to be installed side by side.

Furthermore, in order to efficiently operate these large numbers of elevators and improve services to elevator users, there is a demand for higher performance elevator control.

For this reason, group management control, in which a large number of elevators installed in parallel are operated in relation to each other, has been considered.

In addition to improving the elevator ride comfort and shortening the travel time by increasing the speed of the elevator, possible ways to improve the service for elevator users include shortening the waiting time for the elevator in the hall.

Furthermore, in recent years, in systems where a large number of elevators are installed side by side, in order to improve service, it has been considered to inform waiting customers of the hall at an early stage which elevator will serve them.

For this purpose, the generated hall calls are assigned to elevators,
It is necessary to determine the responding elevator early.

Various methods have been considered for allocating the hall calls to elevators.

For example, with each elevator control car position as a reference, all hall calls occurring on floors at other car positions 1 preceding the car position are assigned to the car.

Alternatively, all the floors on which the elevator travels are divided into a plurality of regions, and hall calls occurring on the floors of each region are assigned to cars located within that region.

FIG. 1 is an explanatory diagram of the operation of an elevator using the former allocation method.

As shown in the figure, three elevators A-C are 1 to 10.
This will be explained using an example of servicing a floor.

Assume that the A car is moving up the second floor, the B car is going down the 10th floor, and the C car is moving down the fifth floor.

At this time, the range (referred to as the service zone) in which each elevator responds to hall calls.

) is the floor up to the preceding car based on the position of each car corner, that is, the range of each elevator is indicated by the arrow.

In this state, for example, when a hall call for the 8th floor upward direction occurs, the hall call is assigned to car No. A, and the hall call for the 7th floor downward direction is allocated to car No. B.

On the other hand, the position of each elevator is adjusted according to the interval between each elevator, the number of calls to be stopped, etc., and is controlled to provide efficient service overall.

However, when using the above-mentioned method of allocating hall calls to elevators or other methods, even if the elevators are filled up and there will be backlogs if all the allocated hall calls are served, further problems will occur in the future. It was found that a phenomenon occurs in which hall calls are assigned based on the number of hall calls.

In such a case, the hall will be full before all the assigned hall calls have been serviced, so even if the hall stops at the assigned hall call floor after that, it will not be possible to service it.
Passengers waiting in the hall must operate the hall call button again to wait for another elevator.

This is undesirable because it makes the waiting time of the hall customers very long.

To avoid this, when a car becomes full, the remaining hall calls that cannot be serviced may be reassigned to other elevators.

However, if the button has an indicator light to inform waiting hall customers of the elevator that responds to a hall call,
Said reallocation requires changing the indicator lights as well, which reduces the reliability of the indicator lights.

An object of the present invention is to provide an elevator group management control device that can reduce the occurrence of overcrowding and improve service.

The feature of this invention is that a service elevator for a hall call is selected using the service evaluation index of each elevator, and a button is pressed to assign the hall call to the selected elevator. The result of predicting the occurrence of full occupancy in each elevator is used as an element of the above service evaluation index.

This makes it possible to perform hall call allocation control that predicts the occurrence of a full hall after hall call allocation.
The conventional inconvenience caused by the allocated elevator becoming full can be alleviated and elevator service can be improved.

As a service evaluation index, the predicted waiting time for a hall call has been known for a long time, and in one example described below, the case where the predicted waiting time of the present invention and the fullness prediction of the present invention are included as an element will be exemplified. I will list and explain.

Hereinafter, the present invention will be described in detail using an illustrative embodiment.

In the embodiment, a case will be described in which three elevators A to C serve floors 1 to 10.

Furthermore, in order to explain the elevator control method according to the present invention, FIG. A block diagram of one embodiment is shown.

A hall call registration device 1 installed on each floor, a waiting customer number detecting device 2, and a detecting device 3 detecting the number of hall customers waiting for each floor where a hall call occurs.

On the other hand, an in-car destination call registration device 4 and an in-car passenger number detection device 5 provided for each car are used to detect the number of passengers for each destination floor in the car.

The predicted number of passengers by floor detection device 7 detects the number of passengers waiting in the hall on the floor that has already responded to the hall call from the assignment device 8 that allocates the hall call to the elevator, and the number of passengers classified by the destination floor. Detect the expected number of passengers on each floor.

The predicted number of passengers by floor is compared with the boarding limit from the setting device 10 in the predicted number of passengers by floor determining device 9, and outputs whether or not boarding is possible at each floor.

In addition, the predicted waiting time detection device 11 for each floor calculates the predicted waiting time at 1 arriving at each floor based on the number of floors stopped by a call or an already assigned hall call and the distance at each floor 1. To detect.

A predicted waiting time determining device 12 determines whether the output of the predicted waiting time detecting device 11 exceeds a waiting time limit set in the device 13.

Elevator selection device 15 provided for each floor,
Predicted number of passengers by floor determining device 9 and predicted waiting time determining device 1
2. Furthermore, the output of a signal device 14 of another machine similar to those devices 9 and 12 is input.

As a result, the newly generated hall call is temporarily assigned by the car assignment device 8, and the resulting changes in the status of each elevator are predicted by the waiting time determination device 12, the predicted number of passengers by floor determination device 9, and other similar elevators. The determination is made by the signal device 14.

In other words, by assigning a newly generated hall call, it is possible to determine whether the predicted number of passengers or the predicted waiting time at the already assigned hall call floor does not exceed a predetermined value, or whether the predicted passenger number at the new hall call floor is confirmed. It is determined whether the number or predicted waiting time does not exceed a predetermined value.

After a new hall call is temporarily assigned as described above, the elevator selection device 15 selects an elevator that satisfies predetermined conditions, and selects the elevator with the shortest predicted waiting time among the elevators that satisfy the predetermined conditions. Select.

The responding elevator determining device 16 is the elevator selecting device 15.
Based on the output of , the elevator that responds to the temporarily assigned hall call is determined.

The output of the responding elevator determining device 16 is transmitted to the assigning device 8, which releases the temporarily assigned hall call, and
Only hall call assignments to elevators that are determined to be answered are retained.

As described above, it becomes possible to allocate a hall call to a newly generated hall call in consideration of the state of the elevator after the hall call is allocated, and it becomes possible to perform optimal elevator control for the hall call.

The present invention will be explained below using a specific example circuit shown in FIGS. 3 to 10.

FIG. 3 shows a destination floor excess passenger number detection circuit for allocating the number of passengers in the car to the number of passengers on the destination floor side.

Incidentally, this figure shows the A machine, and similar circuits are provided in the B and C machines as well.

The car passenger number detection device CPD is a device that detects the number of passengers using a push device installed under the floor of the car, and its output VCPD is a signal proportional to the number of car passengers.

Comparator CM is car passenger number detection device CPD and adder AD
Compare the signals from D and detect the number of passengers in the car CPD.
If it is larger, a positive signal is output, and if it is the opposite, a negative signal is output.

The signal generator SG generates a negative voltage - according to the output of the comparator CM.
Output VSG.

That is, when the output of the comparator CM is a positive signal, the absolute value of the output voltage -VSG of the signal generator SG is increased, and when it is a negative signal, the absolute value of the output voltage -VSG is decreased, and the absolute value of the output voltage -VSG is reduced to zero. In this case, the output voltage -VSG is held at 11.

UPA and DNA are contacts that turn on when the elevator is in the ascending direction and descending direction, respectively, and 1F to IOF are contacts that are turned on when the elevator is in the ascending direction and descending direction, respectively.
Contacts 1C to 10C which turn off when the car is located on the 10th floor are contacts which turn on when an in-car destination call for the 1st to 10th floors occurs, respectively.

02U-010U, 01D-09D are variable resistors, which set a predetermined output voltage PP2 according to the input voltage -VSG.
UA-P 10UA-P 9DA (negative voltage signal)
A predetermined ratio is set to generate the .

For example, suppose that the elevator car of car A is located on the 4th floor in the ascending direction, a hall passenger is boarding the elevator car, and a call is made for the 9th and 10th floors.

A signal VCPD proportional to the number of passengers in the car is compared with the output of the edge calculator ADD in a comparator CM to generate an output.

On the other hand, the output of signal generator SG -VSG is 5G-UPA
-10F'9C-09U and 5G-UPA-IOC-0
10U is applied to variable resistors 09U and 010U.

The variable resistors 09U and 0IOU are set at predetermined ratios (the set values are E9U and E10U, respectively).

), the outputs, namely the destination floor law passenger numbers P9UA and PloUA to the 9th and 10th floors, are Vsc-E9U and -
vsG-EloU.

These signals P9UA and PIOUA are the blade counter ADD.
The input signal is inputted to , the power is calculated, and the comparator CM compares it with the output VCPD of the in-car passenger number detector CPD.

Comparator input VCPD-(VSG-EPU+Vsc-E
When loU) is positive, the output voltage of the signal generator SG -V
Increase the absolute value of SG.

As a result, comparator CM becomes VCPD-(VSG-E9U+
The signal generator is controlled so that Vsc-El 0U)=0.

Therefore, if the signal level of the car passenger number VCPD, the signal level of the signal generator SG, and the signal level of the signal generator SG are made the same, the destination floor law passenger IV9UAPIO
The sum of UA and the number of own passengers VCPD are equal.

As a result of the above, the destination floor law number of passengers P2UA ~ P10UA,
Detect PI DA-P 9DA.

In addition, variable resistors 02U-010U, 01D-09D
The ratio set is to allocate the number of passengers in the car to the number of passengers on the destination floor, but based on the characteristics of past elevator users, the ratio of floors where most of the passengers in the car get off is set to be large, and Consideration may be given to reducing the proportion of floors with fewer people.

For example, the proportion of the lobby floor and cafeteria floor may be increased.

FIG. 4 shows an example of a circuit for detecting the number of customers waiting in the hall installed in each floor hall, and shows the circuit going up to the second floor.

The signal from the waiting customer number detection device HP2U is the relay R of cars A to C that is turned on when the hall call is allocated as shown in Figure 12.
Contact points of y2UA-Ry2UC Ry2UA1 to Ry2UC
1 is transmitted to the assigned elevator among cars A to C.

As for the above-mentioned waiting customer number detection device HP2U, there is, for example, Japanese Patent Application No. 48107468 filed by the same applicant.

To briefly explain the content, there are waiting customers at the elevator landing.
A large number of mud switches with the area required for one person are arranged,
The number of customers waiting is detected based on how many mud switches are operating.

FIG. 5 shows a floor-side predictive passenger number judgment circuit for determining whether there is service capability for the floors in the ascending direction of the A car.

Similar circuits are required in the descending direction and for aircraft B and C.

In the figure, VCPD, P2UA-P9UA and H2
UA-H9UA is the number of customers in the basket obtained from Figures 3 and 4.

In principle, this is the number of passengers on the destination floor and the number of waiting customers in the assigned hall.

ADIUI~AD9UA1 are adders, CM2UA1~C
M9UAl is a comparator, and when the sum of inputs is greater than or equal to zero, the power tt
It becomes lpp.

vPO is a comparison voltage signal of the comparators CM2UA1 to CM9UA1, and is set to a negative voltage corresponding to the number of passengers in the car.

AM2U-AM9U are predicted passenger number determination signals obtained from these, and when boarding is possible for each floor, the signal corresponding to that floor becomes 0.

Contact UPA that turns on when the number of fruit customers in the basket Vcpd increases.
is input to the power I calculator ADIUAI through the power I calculator ADIUAI.

Adder ADIUA1 is the number of waiting hall customers HIUA for the first floor up.
is also input, and the predicted number of passengers going up the first floor is output.

The output of the force O calculator ADIUA1 is sent to the force O calculator AD2UA1 as the number of passengers P 2UA on the destination floor of the car.

It is input together with the number of waiting customers in the hall H2UA.

As explained in FIG. 3, the number of passengers on the car destination floor P2UA is a negative voltage signal, and the adder AD2UA1 operates to subtract it.

As a result, the output of the adder AD2UA1 becomes the predicted number of passengers in the car in the ascending direction to the second floor, taking into consideration the passengers getting on and off on the second floor.

The output of the adder AD2UA1 is further sent to the blade balancer AD3UA.
1, and thereafter the adders AD3UA1 to A
D9UA1 outputs the predicted number of passengers for each floor.

The comparators CM2UA1 to CM9UA1 connected to the power calculators ADIUA1 to AD9UA1 determine whether the predicted number of passengers on each floor is large or small with respect to the car passenger limit VPO.

Get in the car! If the predicted number of passengers on each floor exceeds the VPO of I or more people, the predicted number of passengers on that floor is determined by the signal AM2.
The signal from U to AM9U is set to 1'', and it is determined that the user cannot board the A elevator on that floor.

FIG. 6 shows predicted waiting time detection circuits lined up on each floor of Car A in the ascending direction.

Note that similar circuits are required in the descending direction and for each B and C car.

In the figure, VPDl is a set voltage corresponding to the time required for the elevator to stop once, VAD2 is a set voltage corresponding to the moment required for the elevator to travel a wide distance between one floor, and RylUA2 to Ry10DA2, Ry1UA3 to A
y10DA3 is a relay RyIUA~Ry that turns on when car A in Figure 12 responds to a hall call on the 1st to 10th floors, or when a new call is temporarily assigned.
1ODA contacts, ICA to 10CA are contacts that turn on when a call is made in the A car on floors 1 to 10, and ADIU.
A2~ADI0DA2.

ADIUA3 to AD10DA3 are Calo calculators, CLWIU
A~CLWI ODA is counter, F1UA1~FI
ODAI, FIUA2 to F10DA2 are contacts that turn off when the A car is located in the ascending and descending directions of the 1st to 10th floor, and ADDIUA to ADDloDA are adders that output predicted waiting time signals AN1UA to AN10DA in line with each floor. .

For example, consider a case where the contacts FIUAI and FIUA2 are off because the A machine is located in the ascending direction of the first floor.

Set voltage VDA2 is VAD 2ADIUA3-F2UA
2-AD2UA3...AD8UA3...
. . . is transmitted, and the power calculation unit AD2UA-A
It becomes D10DA3's strength.

As a result, the adder ADIUA3 outputs a voltage signal (VAD2) corresponding to the time the elevator travels between floors.

The adder AD2UA3 inputs the output voltage of the adder ADIUA3 and the set voltage VAD2, and outputs a voltage signal (VAD 2×2) corresponding to the time the elevator travels between two floors.

Similar blade calculators AD3UA3 to ADI0DA3 each output a voltage signal corresponding to the time the elevator travels between the 3rd and 10th floors.

In this way, a voltage signal corresponding to the time required to reach each floor from the floor where the elevator is located is detected and input to the force calculators ADD2UA-ADD9DA.

On the other hand, a destination call for the 8th floor occurred in the car of car A, and a hall call for the upward direction to the 2nd floor was assigned.
Consider the case where contact 8CA and contact Ry2UA2°Ry2UA3 are on.

Set voltage VAD1 is VADl-Ry2UA3-AD2
UA2-F3UA1-AD3UA2...F8U
It is transmitted as AIAD8UA2.

As a result, the adder AD2UA2 outputs a voltage signal (VADI) corresponding to one stop, and the adder
3UA2 to AD7UA2 also output similar voltage signals.

Also, since contact 8CA is on, adder AD
The set voltage VAD1 is input to 8UA2 through the contact 8CA along with the output signal of the adder AD7UA2.

As a result, adder AD8UA2 outputs a voltage signal (VADIX2) corresponding to the number of stops, and AD8UA2-
F9UA1-AD9UA2... are transmitted sequentially.

Therefore, the number of stops for adders AD2UA2 to AD7UA2 is 1.
times, and the voltage signal (VA
The adders after adder AD8UA2 output a voltage signal (VADIX2) corresponding to the time required for stopping twice, and each adder AD8
It is transmitted to IUA-ADD10DA.

The adders ADDIUA-ADD10DA reach each floor by adding the signal voltage corresponding to the time required to reach each floor from the above-mentioned elevator position and the signal voltage corresponding to the time required for stopping and the number of stops. Outputs the predicted waiting time ANIUA - ANI ODA.

For example, the time it takes for an elevator to stop and service a call is about 10 seconds, the time it takes to travel one floor interval is about 2 seconds, and the set voltage VADI.

When VAD2 is set to a corresponding voltage, the predicted waiting time signal AN2UA becomes a voltage corresponding to 2 seconds, and the predicted waiting time signal AN3UA becomes a voltage corresponding to 14 seconds.

In the above description, the set voltage VAD1. The case where each VAD2 is set to a predetermined voltage has been described.

However, it is also possible to set the set voltages VADI and VAD2 to appropriate voltages, and set the outputs of the adders ADIUA2 to AD10DA2 and the adders ADIUA3 to AD10DA3 to voltages corresponding to the number of stops and voltages corresponding to the floor spacing, respectively. .

At this time, the weighting of the number of stops and the time required for the floor interval is determined by the calculation resistors r2 to r4 of the adders ADDIUA-ADD10DA (only the adder ADD2UA is shown, but the same applies to the others).

) can be easily done in the same way as above.

In this way, the predicted waiting time for each floor is detected.

Also, for floors that are determined to respond to hall calls, for example, considering the above-mentioned ascending direction to the second floor,
In addition to the predicted waiting time, the duration of the hall call is VADI-
It is counted by counter CLW2UA in Ry2UA2-CLW2UA-ADD2UA and is added to the predicted waiting time by inputting it to adder ADD2UA.

As described above, the predicted waiting time for each floor is detected for each elevator based on the interval to each floor and the number of stops, starting from the floor where the elevator car is located.

FIG. 7 shows a service availability determination circuit for the A car in the upward direction, and is also provided in the downward direction and in the B and C cars.

That is, the predicted waiting time signals ANIUA to ANI from FIG.
ODA is less than the comparison voltage VLO corresponding to the predetermined waiting time, and the predicted number of passengers judgment signal AM1UA- from FIG.
When AM10DA is ready for boarding, it generates service enable determination signals VS1UA to VS10DA, and determines for each floor that the A elevator is ready for service.

In the figure, CMIUA2 to CM10DA2 are comparators that output O'' when the comparison voltage VLO is larger, and OR
I UA 1~0R10DA1゜0RIUA2~ORI
0DA2.0RIUA3 to OR10DA3 are OR elements, 5WIUA-8WIODA are OR elements 0RIUA2
~ORI This is an analog switch that opens when the output of 0DA2 is 1".

Now, for example, the predicted waiting time AN9UA for climbing the 9th floor is compared with the comparison voltage VLO, and if the predicted waiting time AN9UA is smaller, the output of the comparator CM9UA2 becomes O'', and the predicted waiting time AN9UA for climbing the 9th floor is set to a predetermined value. It is determined that it is smaller than the waiting time.

The output of the comparator CM9UA2 is sent to the OR element 0R through the OR element 0R9UA2 and the contact Ry9UA4, which is turned on when the hall call in the ascending direction of the 9th floor is assigned to machine A.
It is transmitted to 9UA1.

The OR element 0R9UA1 further receives the output of the OR element 0R10DAI in the 10th floor descending direction.

Now, if the output of OR element 0R10DAI is ``O'', the output of OR element 0R9UA1 is ``0'', and if the predicted number of passengers judgment signal AM9U is ``0'' indicating boarding is possible, the output of OR element 0R9UA2 is also ``O''. ”, and the analog switch 5W9UA is closed.

As a result, the analog switch 5W9UA outputs the predicted waiting time signal AN9UA as the service availability determination signal VS9UA, and the A elevator is available for service in the upward direction of the 9th floor, and the waiting time is VS9UA (=AN9UA).
) is detected.

On the other hand, when the predicted waiting time signal AN9UA becomes equal to or higher than the comparison voltage VLO, the output of the comparator CM9UA2 becomes 1'', which is passed through the OR element 0R9UA2 to the analog switch 5W9UA.
is opened, and the predicted waiting time signal VS9UA is not output.

Further, when the predicted number of passengers judgment signal AM9U becomes 1" and boarding becomes impossible, the analog switch 5W9UA is similarly opened, and the output of the OR element 0R8UA3 is transmitted to the OR element 0R8UA2 through the position relay contact F9UA4. Along with position relay contact F8UA
4 to the OR element 0R7UA3, and the following OR elements 0R6UA3 to 0RIU up to the floor where the A car bundle basket is located.
A3°0R7UA2~0RIUA2 (Assume that machine A is located on the first floor.

), and the analog switch 5W9UA-8W1U
Open circuit A.

As a result, it is determined that machine A cannot service hall calls up to the 9th floor, and a service possibility judgment signal V is sent.
S9UA to VSIUA are not generated.

This means that after boarding is not possible on the 9th floor ascending direction, responding to a hall call on the floor before the 9th floor ascending direction and providing service will cause the hall to be full or unloaded. It should be obvious.

Also, the reason why the signal transmission circuits AM2UA to AM9DA are not configured between the circuits for ascending to the 9th floor and descending to the 10th floor, and descending to the 2nd floor and ascending to the 1st floor is because all the passengers in the car get off at other floors. It should be obvious if you think about it.

Furthermore, when it is decided to respond to the hall call in the direction of ascending to the 9th floor and the button contact Ry9UA4 is on,
Even if the predicted waiting time AN9UA is higher than the comparison voltage VLO, CM9UA2-Ry9UA4-OR9UA1-F
9UA3-OR8UA1・・・・・・F2UA3
OR element 0R9UA1~0R by ORIUA1 circuit
The output of IUA1 becomes 1”, and 0R9UA2~0R respectively.
The signal is transmitted to IUA2, and its output becomes °1".

Therefore, analog switch 5W9UA-8W as above
The IUA is opened.

This is to prevent hall calls going up to the 9th floor from being answered due to delays in the service of Unit A and longer waiting times for those going up to the 9th floor. , the aim is to promote Unit A, and its meaning is clear.

Through the above steps, it is determined which floor the predicted waiting time is within a predetermined time and where boarding is possible, and the service availability determination signal VSIU
Generate A to VS10DA.

FIG. 8 is a minimum predicted waiting time elevator selection circuit.

The figure shows a selection circuit for the second floor ascending direction, which is provided for each floor and driving direction.

That is, the serviceability determination signal VS2 in the ascending direction to the second floor is sent from the serviceability determination circuit of the A-C cars corresponding to FIG.
It inputs UA to VS2UC, selects the elevator that is serviceable and has the least expected waiting time, and outputs elevator selection signals L2UA to L2UC.

In the figure, R1-R4 are resistances (R1-R3>R4),
D1 to D3 are diodes, 5N2U is a code converter, CM
M2UA-CMM2UC is a comparator, N2UA-N2UC
is a knot element.

The operation of such a minimum selection circuit is described in detail in, for example, Japanese Patent Publication No. 47-11938 filed by the same applicant, and will therefore be briefly explained here.

For example, all of the cars A to C can be serviced in the ascending direction on the second floor, and the service availability judgment signals VS2UA to VS
The value of 2UC is the voltage IV, 2 corresponding to the predicted waiting time, respectively.
Suppose that V is 3V.

As a result, a current flows as PO-R4-Dl-VS 2UA, and only the diode D1 becomes conductive (the forward voltage drop of the diode is assumed to be 0.5 V).

). Therefore, the potential on the anode side of the commonly connected diodes is 1.5V.

The output voltage of the code converter 5N2U becomes -1.5■.

Comparators CMM2UA to CMM2UC are code converters 5N2
Output voltage of U -1.5V and service enable judgment signal VS2
Input the IV, 2V, and 3V of UA~VS2UC, respectively.
-0.5V, 0.5V, 1.5V, comparator CMM
Only 2UA outputs an output "O" signal.

These signals become inputs to the knot elements N2UA-N2UC, and only the elevator selection signal L2UA is "1", L2
UB and L2UC become "0".

As a result, it is possible to select and detect the elevator with the minimum predicted waiting time among serviceable elevators.

In this case, car No. A becomes the selected elevator.

Further, when the analog switch 5W2UA in FIG. 7 is opened and the circuit is opened, the power supply voltage is applied to the cathode side of the diode D1.

This prevents circuit malfunction and selects one of the other B and C machines.

FIG. 9 shows a ring counter circuit.

In synchronization with the clock pulse CPF, operation signals 5IU-
89U, Sl 0D-82D are sequentially set to N1''.

FIGS. 10 to 12 show circuits that temporarily allocate a newly generated hall call to a plurality of elevators and then determine which elevator responds to the hall call.

Note that although the diagram only shows the circuit in the ascending direction to the second floor, it is necessary for each floor.

The buttons in the diagram with an “A” at the beginning are AND elements.
Those with "N0" are OR elements, those with N are NOT elements, those with "TX" are timers, those with "AM" are amplifiers, and the ones with 'Ry' are relays. .

Now, a case where a new hall call in the ascending direction of the second floor occurs will be described below.

Due to the occurrence of a hall call in the upward direction to the second floor, the hall call registration signal HC2U in FIG. 11 becomes "l", and the AND element A401 becomes manually operated.

In addition, the assignment of the 2nd floor upward hall call that just occurred has not yet been determined to any elevator, so A, B.

Response decision signals LL2UA, LL2UB of machine C.

LL2UC are both O''.

Therefore, the output signal of OR element 02 becomes "O" and becomes "1" through NOT element N3, and the output signal I of AND element A4 becomes "1".
AS2U becomes 1'' and is transmitted to AND element A1 in FIG.

That is, the signal IAS2U becomes "1" when a hall call occurs for which no answering elevator has been determined.

When the signal S2U corresponding to the second-floor ascending hole of the ring counter in FIG. The output signal of is “1”.

). The output signal of AND element A1 passes through NOT element N1 and becomes 'O', which becomes an input to AND element A2.

Therefore, the clock pulse signal CP, which is the input of the AND element A2, is not generated at the output of the AND element A2, and the output signal CPF of the AND element A2 is set to "0", thereby stopping the ring counter shown in FIG. 9.

That is, the ring counter in FIG. 9 maintains the output signal S2U corresponding to the upward hall on the second floor at 1''.

Furthermore, the output signal "1" of the AND element A1 in FIG. 10 is input to the OR element 01, and its output signal 5AS2U is set to 1".

This signal 5AS2U becomes a temporary allocation command and is transmitted to FIG.

These are input to the OR elements 02A, 02B, and 02C of machines B and C, and their output signals B2UA and B2UB.

Let B2UC be N1''.

Signals B2UA, B2UB. B2UC is the amplifier AMPA and AMPB shown in FIG.

It is transmitted to AMPC, and the hall call assignment relay for the 2nd floor ascending direction of A, B, and C cars Ry2UAsRy2UBtRy2U
Run C.

As a result, the hall calls for the upward direction to the second floor are temporarily assigned to all elevators A to C.

Therefore, the contacts Ry2UA1, . Ry2UA4゜Ry2U
B1 to Ry2UB4 and Ry2UC1 to Ry2UC4 operate to determine the predicted waiting time or predicted number of passengers for each floor when a hall call in the ascending direction to the second floor is assigned.

Here, we will consider only machine A (the same applies to other machines as well).

), contact Ry2UA1 in Fig. 4 turns on, and 2 appears in Fig. 5.
Enter the number of customers waiting in the hall in the ascending direction.

Therefore, the adders AD2UA1 to AD9UA1 calculate and output the predicted number of passengers in the car for each floor when passengers waiting in the hall ascending to the second floor board.

Next, the comparators CM2UA1 to CM9UA1 compare the set value ■PO corresponding to the boarding limit, and output predicted passenger number determination signals AM2U to AM9U which become "1" when boarding is impossible.

On the other hand, in FIG. 6, the set value VA corresponds to the time required for the contact Ry2UA3 to turn on and the elevator to stop.
D1 is input to adder AD2UA2.

Therefore, the adders ADD2UA to ADD9DA calculate and output the predicted waiting time for each floor when the elevator stops in the ascending direction of the second floor.

Contact Ry2UA2 is also turned on, and counter CLW2UA starts counting the duration of the hall call.

Using the results of the above calculations, it is determined in FIG. 7 whether the service is possible.

Here, it is assumed that aRy9UA4 is turned on because it has already been determined that elevator No. A will respond to a hall call going up to the 9th floor.

The predicted waiting time signal ANIUA-AN10DA is the comparator CM
At IUA2 to CMIODA, it is compared with a set voltage VLO corresponding to a limited predicted waiting time.

Analog switch 5W for floors that exceed the limit predicted waiting time
1UA-8WI ODA is opened.

Further, in the ascending direction to the 9th floor, the contact Ry9UA4 is turned on.

Therefore, if the predicted waiting time of a floor that has already been determined to respond exceeds the limited waiting time, CM9UA2-Ry
9UA4-OR9UA1-F9UA3-OR8UA1・
...is transmitted sequentially.

The signal is transmitted to the floor where the elevator is located, and opens all analog switches from analog switch 5W9UA to the floor where the elevator is located.

As a result, the service availability judgment signal VS in the upward direction to the second floor
2UA is also cut off.

On the other hand, the predicted number of passengers judgment signal AMIU-AMIOD is also input to the OR elements ORI UA 1 to 0R10DA1, and similarly to the above, analog switches 5WIUA to 5W10DA from the floor where boarding is not possible to the floor where the elevator is located are opened. .

As described above, the service availability judgment signal VSIU in the state after provisionally allocating the hall call in the ascending direction to the second floor
Calculate A-VSIODA.

Here, the service availability judgment signal VS2U in the direction of ascending to the second floor
As can be seen from the above description, A becomes the same signal as the predicted waiting time AN2UA only when the state after the hall call is provisionally allocated satisfies a predetermined condition.

That is, the above predetermined conditions are as follows.

(1) In the ascending direction of the second floor (the floor to which the hall call is temporarily assigned and its direction), all the hall passengers on that floor must be able to board.

(2) In the upward direction to the second floor (the floor to which the hall call is temporarily assigned and its direction), the predicted waiting time is less than or equal to the set value.

(3) On floors where it has already been decided to respond,
All the passengers waiting in the hall on that floor are able to board (or if the passengers waiting in the hall ascending to the second floor are boarding,
The predicted number of passengers in the car will not exceed the boarding limit even if the car is on the L/shift floor.

). (4) For floors that have already been determined to respond, the predicted waiting time for that floor is less than or equal to the set value.

The above calculation is performed for each elevator, and the service availability judgment signal VS2UA-V for the second floor ascending direction of A to C is
S2UC is calculated.

The service availability determination signals VS2UA-VS2UC are the eighth
As described above, the elevator that can service the second floor upwards and has the least expected waiting time is selected.

The selection signals L2UA-L2UC of the selected elevator become "1".

Elevator signals L2UA, L2UB in FIG.

Output signal AS of L2UC and timer TX in FIG.
2U are AND elements A1A, A of machines A, B, and C in Figure 11.
IB and AIC input.

As shown in FIG. 13, the timer TX in FIG. 10 outputs '1' after a certain period of time after its input signal becomes "1".
”, and when the input becomes “O”, the output also becomes “0”.

Note that the time limit t of the timer TX may be longer than the calculation time of the circuits shown in FIGS. 3 to 12, and the IC open circuit may generally be several m5ec, although it depends on the circuit configuration.

Therefore, the signal 5AS2U becomes 1'', and the hall call in the ascending direction of the second floor is temporarily assigned to all elevators.
After sufficient time has elapsed to perform the calculation described in FIG. 8, the output AS2U of the timer TX becomes 1''.

This signal AS2U determines which elevator responds as described below.

FIG. 11 The output of the AND element A4, which is the supply input for the AND elements AIA, AIB, and AIC, is '1'' as described above.
Therefore, the output signal AS2U of the timer TX in FIG.
1”, the elevator selection signals L2UA, L in FIG.
Of 2UB and L2UC, only the output of the AND element which is ``1'' becomes 1''.

For example, if the 2nd floor ascending hall call is temporarily assigned to all elevators as described above and the calculations in Figures 3 to 8 are performed, A
If the machine number is selected, the signal L2UA becomes 1'', and only the output of the AND element AIA becomes 1''.

The output of AND element AIA enters AND element A2A through OR element 01A.

The purchase input signal HC2U of the AND element A2A is 1'' because the hall call in the upward direction to the second floor is registered.

Therefore, the response decision signal LL which is the output of the AND element A2A
2UA becomes "1".

Also, the output signal of the AND element A2A becomes the input to the OR element 01A, and the signal LL2UA is input while the signal HC2U is "■".
Hold at 1”.

This signal LL2UA indicates that car No. A has decided to respond to the hall call in the ascending direction to the second floor.

Furthermore, the response decision signal LL2UA becomes an input to the OR element 02, and its output is set to '1', passes through the NOT element N3, becomes 0', and inhibits the AND element A4.

Therefore, the output signal IAS2U becomes O'', and the AND elements AIA and AIB.

The AIC is also prohibited and interlocked so that it cannot be assigned to other elevators.

Also, the output signal AS2U'''1 of the timer TX in FIG.
” enters the AND element A3 together with the output signal S2U of the ring counter “l”, making its output 1”, and the OR element 0
1, the timer TX is held at "1".

Further, the output signal AS2U"'1" of the timer TX passes through the NOT element N2 and becomes O", and together with the IAS2U signal "O" shown in FIG. 11, the AND element A1 is inhibited, and its output becomes 0".

Therefore, the output of the NOT element N1 is 1'', and the reflock pulse CP is transmitted to the output CPF of the AND element A2, causing the ring counter shown in FIG. 9 to operate again.

Then, the signal S2U corresponding to the upward direction hall on the second floor is “0”.
", the output of the AND element A3 becomes O", and the output signal 5AS2U of the OR element 01 and the output signal AS2U of the timer TX become O".

When the temporary assignment signal 5AS2U for the hall call in the upward direction of the second floor becomes '0', the signals LL2UA in FIG.
2UB, B 2UC will be 0''.

Therefore, Ry2UB and Ry2UC are turned off except for assigned relay Ry2UA of machine A in FIG. 12.

That is, it is decided that car A will respond to the hall call going up to the second floor.

It is conceivable that the response elevator to the hall call is further notified to the waiting hall customers by a display circuit shown in FIG. 14.

Although the figure shows the circuit for car A only, it is necessary for each elevator.

5IUA to 5IODA are indicator lights, which are provided for each floor and each driving direction.

RylUA5 to RylODA5 are the contact points of the assignment relays for each floor similar to those shown in FIG. 12 above.

As a result, when it is determined that machine A will respond to the hall call in the upward direction to the second floor as described above, contact Ry2UA5 of assignment relay Ry2UA turns on.

Therefore, the indicator light 52U installed in the landing area of Unit A on the 2nd floor
A lights up, and the customers waiting in the hall know that machine A will respond.

The assignment relays Ry2UA-Ry2UC in Fig. 12 are
It is also turned on before determining the response elevator and at the time of provisional allocation.

As a result, the indicator lights 52UA to 52U of units A-C
C will also be all lit up temporarily.

However, considering that the lighting of the indicator light indicates which elevator responds, there may be cases where the lighting is not preferable.

Therefore, in order to prevent the indicator light from lighting up at the time of temporary allocation, it is conceivable to use, for example, the signal from the timer TX shown in FIG. 10 to detect that the responding elevator has been determined and turn on the indicator light.

As described above, the present invention is capable of allocating hall calls that have occurred while also predicting that the hall will be full after the hall call is allocated.

Therefore, the overcrowding caused by the allocation of new hall calls and the resulting inability to service or passing of the allocated elevators are reduced, making it possible to perform group management control that provides very good service to customers.

Of course, the present invention is not limited to the above embodiments.

For example, in the above embodiment, the elevator is allocated to the elevator with the least expected waiting time among the elevators that are not full, but the invention is not limited to this, and it is also possible to allocate to the elevator with a small expected number of passengers.

Furthermore, the illustrated circuit configuration may be modified as appropriate depending on the application, and it is obvious that certain effects will be obtained.

For example, recently it has been considered to use a computer as an elevator system, and the elevator group management and control device according to the present invention can of course be implemented in that case as well.

That is, each signal may be digitized and arithmetic processing may be performed based on the idea explained in the above embodiment.

It is clear that effects unique to computers can be expected.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the operation of an elevator under conventional control, and FIG. 2 is a block diagram of an embodiment of an elevator group management and control device according to the present invention. Figures 3 to 12 are circuit configuration diagrams of an embodiment according to the present invention, in which Figure 3 is a device for detecting the number of passengers by destination floor, Figure 4 is a circuit for detecting the number of passengers waiting in the hall, and Figure 5 is for the floor side. Predicted number of passengers judgment circuit, Fig. 6 shows predicted waiting time detection circuit, Fig. 7 shows service availability judgment circuit, Fig. 8 shows minimum predicted waiting time elevator selection circuit, Figs. 9 to 12 show provisional allocation of hall calls. and a decision circuit for a response elevator. FIG. 13 shows a characteristic diagram of the timer TX, and FIG. 14 shows a display circuit diagram. 1... Hall call registration device, 2... Number of waiting customers detection device, 3... Hall call generation floor detection device, 4... In-car destination call registration device, 5... Number of customers in the car detection device,
6... Device for detecting the number of passengers by destination floor, 7... Device for detecting the predicted number of passengers on the floor side, 8... Device for allocating cars for hall calls,
9... Floor law predictive passenger number determination device, 10... Boarding limit number setting device, 11... Predicted waiting time detection device, 1
2... Predicted waiting time determination device, 13... Limit waiting time setting device, 14... Signaling device of other cars, 15... Elevator selection device, 16... Response elevator determining device,
PIUA-Pl 0DA...Destination floor side passenger signal, V
CPD ”'In-car passenger signal, HIUA-HloD
A...Hall waiting signal, AMIUA-AMl 0DA
...Predicted number of passengers judgment signal, VPO, VADl, VAD
2゜VLO...Setting value, ANIUA-ANl 0DA
...Predicted waiting time signal, VSIUA-VSl 0DA-
...Service availability judgment signal, LIUA-LIODA...
・Elevator selection signal, CP, CPF...Clock・
Pulse, 5IU-8IOD...operation signal, 5AS2U
...Temporary allocation command signal, lAs2U...Last allocated hall call detection signal, AS2U...Computation end signal, LL2
UA~LL2UC...Response elevator decision signal, B
2UA to B2UC...allocation signal, HC2U...hall call registration signal.

Claims (1)

[Scope of utility model registration request] Using multiple elevators that serve multiple floors, a hall call device placed on the floor, and a service evaluation index for each elevator, the service elevator that is in line for the hall call that has occurred is selected, and the service elevator in line for the hall call is selected. comprising means for predicting the occurrence of fullness of each elevator after the generated hall call is assigned by pressing a button to the one to which the call is to be assigned;
An elevator group management control device characterized in that the result of predicting the occurrence of crowding is used as an element of the service evaluation index.