JPS582908B2 - Elevator group control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator power system that manages several elevators as a group.

In recent years, elevator service floors have been divided into multiple bands,
On the other hand, a so-called allocation method has been adopted in which the door of the car is closed on the floor after answering the last call, and the car is determined to be available for use, and the car is allocated to the above-mentioned band, and the car is serviced during the allocated band.

In these allocation methods, when a hall call is registered on any floor of the above band, it is called a demand for that band and one car is allocated to see if it can be used, but multiple demands are registered at once. When elevator service is available, the order in which demand is allocated to availability has a significant impact on elevator service.

Furthermore, if a specific floor among the service floors can only service a specific car, an important issue is how to allocate the available calls to calls on the specific floor in what order.

This invention improves the above-mentioned problems, and even if there is a floor where only a specific car can be serviced, the elevator can quickly allocate availability to that floor and provide equal service to all floors. The purpose is to provide a group management device for this purpose.

Hereinafter, one example of this invention will be explained with reference to FIGS. 1 to 5.

FIG. 1 shows an example of a band configuration when the present invention is applied to four elevators 11 to 14 in a building with the first basement floor B and the first to ninth floors 9 above ground.

The zone is divided into four parts: a main floor zone M, an underground zone B, a lower zone L, and an upper zone H.

The main floor band M constitutes the main floor demand band, which consists of the first floor ascending calls, and the underground band B constitutes the underground demand band, which consists of the first floor descending calls and the first basement floor. It consists of a rising call.

Further, the lower layer band constitutes a lower layer ascending demand band and a lower layer descending demand band, the lower layer ascending demand band consists of ascending calls from the second to fifth floors of the lower layer, and the lower layer descending demand band similarly consists of descending calls.

The upper layer band H also consists of an upper layer rising demand band and a lower layer falling demand band.

Also, since the first car 11 is a car that can be used on the main floor, I wonder if the main floor can be used, and the second car 12 is a car that can be used on the fourth floor.
I wonder if it can be used on the upper layer earlier than that, so I wonder if it can be used on the upper layer, and whether Unit 4 14 can be used simply (Unit 2 12)
is assigned to the demand and no longer has an available car in the upper tier, the No. 4 car 14 becomes available in the upper tier and is allocated to the demand), and the No. 3 car 13 becomes an available car in the lower tier.

In Figure 2, BUB, 1UB to 8UB are the ascending buttons for the 1st basement floor and 1st to 8th floors, 1DB to 9DB are the descending buttons for the 1st to 9th floors, BU, 1U to 8U are the ascending buttons for the 1st basement floor and 1st to 8th floors. Call registration memory, 1D to 9D are down call registration memories for floors 1 to 9, 2
1 to 23 are OR gates, 24 to 26 are AND gates, 2
7-29 are memories, 30 is an allocation calculation circuit, 31 is an OR gate, 32 is an AND gate, 33 is an inverter, 34-
36 is an AND gate, 31 is an inverter, 38 to 42 are OR gates, 43 is an inverter, and A1 and A2 are available car signals of 11 and 12, respectively.

FIG. 3 is a detailed diagram of the allocation calculation circuit 30 of FIG.
M is the main floor demand signal, DB is the underground demand signal, DDH is the upper floor descending demand signal, DUL is the lower floor ascending demand signal, ADM is the main floor allocation signal, the last number represents the machine name, 1 is 1
For Unit No. 11...4 indicates that it is for Unit No. 4 14 (
same as below).

ADH is an underground demand allocation signal, ADH is an upper layer downward demand allocation signal, AUL is a lower layer upward demand allocation signal, 44 is an OR gate, 45 to 62 are AND gates, 63 to 68 are OR gates, 69 to 15 are memories, AND gates 45-53,
OR gates 63 to 65 and memories 69 to 72 are unit 1 11
for, AND gates 54-62, OR gates 66-68,
Memories 133 to 75 are for the fourth machine 14.

The circuits for No. 2 machine 12 and No. 3 machine 13 are also omitted because they are similar circuits.

Figure 4 shows the available car signal circuits, and 76 to 87 are AND
Gates, 88-96 are memories, 91-99 are inverters, 100-102 are OR gates, 103-105 are inverters, AND gates 76, 79-81, memory 88
~90, Inverter 97 is for Unit 1 11, AND gates 77, 82-84, Memories 91-93, Inverter 98
are for the second machine 12, AND gates 78, 85 to 87, memories 94 to 96, and inverter 99 are for the fourth machine 14, and those for the third machine 13 are omitted.

In addition, ST is a stop signal and indicates "H" when the car is stopped, DS is a door signal and indicates "H" when the door is closed, and UD is a direction signal.
"H" when the car is assigned to a demand and is being serviced with an ascending or descending direction; 1F is the 1st floor position signal and "H" when the car is on the 1st floor; LZ is the lower position signal and the car is on the lower floor. "H" when the car is on the upper floor, HZ is the upper floor position signal, "H" when the car is on the upper floor, A is the available car signal, "H" when it is available, AMF is the main floor available car signal, and AL is The lower layer usable car signal and AH are upper layer available car signals, which become "H" when designated as whether the main floor can be used, the lower layer can be used, or the upper layer can be used, respectively.

Further, P1 in FIG. 2 and P2 to P4 in FIG. 3 are pulse signals that are constantly transmitted, with the relationship shown in FIG. 5.

Next, the operation of this practical example will be explained.

In this practical example, the priority order of demand is main floor demand > upper floor descending demand > lower floor descending demand > upper floor ascending demand > lower floor ascending demand, and for underground demand, since only two vehicles, 11 and 12, can be serviced, the highest Priority demand.

Before selecting the demand, check the available car signal AMF in Figure 4.
AL and AH will be explained.

When the first car 11 finishes answering the final call and becomes non-directional (the direction signal UD1 is "L"), and when the passenger finishes getting off and the door closes, the signal DS1 becomes "H" and the car 11 is stopped and the signal ST
1 is "H", the output of the AND gate 76 is "H", and the car 11 is on the first floor and the signal 1F1 is "H", so the output of the AND gate 76 is "H".
Since the output of the R gate 100 is "L" and the output of the inverter 103 is "H", the memory 88 is sent through the AND gate 79, and the main floor available car signal A is sent.
MF1 becomes "H".

Further, since the output of the AND gate 16 is "H", the available car signal A1 also becomes "H".

The signal AMF1 resets the memories 91 to 94 of the signals AMF2 to AMF4 for the second and subsequent machines.

At the same time, it is inverted by the inverter 103 through the OR gate 100, and is the memory set gate of the signal AMF1.
Close the ND gates 79, 82 to 85 and close the other cars 12 to 1.
4 is restrained from being assigned to the main floor available car.

Similarly, in the second car 12, the upper layer usable car signal AH2 is "H," and in the third car 13, the lower layer available car signal AL3 is "H."
H”.

Since the No. 4 machine 14 became available later than the No. 2 machine 12 in the upper layer, it is on standby without being nominated according to the above explanation.

Now, when the exit button 6DB on the 6th floor is pressed, memory 6
D is set and the 6th floor alighting call is registered.

The output of memory 6D is applied to AND gate 25 through OR gate 22.

At this time, assuming that the memories 21 to 29 are not set to 1, the output of the inverter 43 becomes "H", and the output of the memory 6D sends the memory 28 at the time of pulse P1.

Since the memory 28 is set and its output signal becomes "H", the output of the inverter 43 becomes "L", closing the AND gates 24 to 26 and restricting other demands from being selected.

Currently, the call for the first basement floor is not registered, so the output of the OR gate 21 is "L" and the output of the AND gate 32 is also "
It is "L".

Therefore, the output of the inverter 33 is "H", and the AND
Since the gates 34 to 36 are open, the output of the memory 28 passes through the AND gate 35 and is input to the allocation calculation circuit 30 as the upper level downhill demand signal DDH.

The signal DDH input to the allocation calculation circuit 30 is given to AND gates 48-50...51-59, but since the signal AH2 of the second unit 12 is "H", when the pulse P2 follows the pulse P1 The upper layer downlink assignment signal ADH2 (not shown) becomes "H," and the second car 12 is assigned to the upper layer downlink band, and serves calls in the upper layer downlink band (in this case, the 6th floor downlink call).

Also, since the second unit 12 is assigned to the upper downlink band and the signal ADH2 becomes "H", the signal SADH becomes "H".
The memory 28 is reset and the signal DDH becomes "L".
Therefore, other cars are not assigned during pulses P3 and P4 (in this case, for the demand for descending from the upper floors, pulse P3 selects whether the lower floor can be used, and pulse P4 selects the main floor available car). .

Furthermore, since the output of the memory 28 is "L", the inverter 43
sets the output to "H" and opens the AND gates 24 to 26, but since the pulse Pl is not output, no new demand is selected.

Let's return to the story when the memory 28 is set once again by the alighting call on the 6th floor and the signal DDH becomes "H".

After the signal DDH becomes "H" and until car 12 of the second car is assigned, a call in the main floor band with a higher priority than this (for example, an ascending call on the first floor) is registered. Also, the AND gates 24 to 26 output the output of the inverter 43.
Since the output state of the memories 21 to 29 remains unchanged since the signal DDH is closed at "H", a car is allocated to the demand for descending from the upper floors.

Now, until the signal DDH becomes "H" and car 12 is assigned, an ascending call on the lower floor (for example, an ascending call on the 5th floor)
and a call on the main floor band (for example, an ascending call on the first floor) is registered (the call registration order does not matter whichever comes first).

After that, if the No. 2 unit 12 is allocated to the upper layer down demand as explained above, when the allocated pulse P1 is "H", the AND gates 24 to 26 are opened, and the AND gates 24 to 26 are opened.
Memories 27 and 29 are set by the outputs of gates 24 and 26.

(Since the call for descending from the 6th floor has not been answered yet, memory
The set signal is also applied to 8, but the signal SADH is “H”.
”, the memory 28 is not set.

) The output signal of memory 21 is the output signal of memory 28, 29 below it.
The memories 28 and 29 are reset because the signal is input to the reset side of the memory.

In the end, the output signal of the memory 21 with the highest priority is "H"
It will remain as .

Similarly, the AND gates 24 to 26 are connected to the inverter 43.
is closed because the output of is "L".

Therefore, one car will be allocated to the main floor demand signal DM this time.

Note that the timing for capturing demand is not limited to the above, and may be after a certain period of time has elapsed after the availability is allocated.

When the output signal of the memory 21 becomes "H", the underground call (
For example, if an ascending call from the first basement floor is registered, the memory BU is reset and the output becomes "H", and the OR gate 2
The output of 1 becomes "H" and is applied to the AND gate 32.

Inverter 3 which is one of the other inputs of AND gate 32
Since there are no cars assigned to underground demand, the output of signal ADB1 and ADB2 are both "L", and the output of OR gate 38 is "L", so the output is "H".

The output of the other input OR gate 31 becomes "H" when the elevator 11 or 12, which is capable of underground service, becomes an available car and the signals A1 and A2 become "H".

If car 11 becomes available and signal A1 becomes "H", the output of OR gate 31 becomes "H" and A
The output of the ND gate 32 also becomes "H", and the underground demand signal DB is input to the allocation calculation circuit 30.

On the other hand, the signal DB is inverted by the inverter 33 and becomes "L", closing the AND gates 34 to 36 and blocking input to the allocation calculation circuit 30 other than underground demand.

In this case, input of the main floor demand captured in the memory 27 to the allocation calculation circuit 30 is blocked, and priority is given to car allocation to the underground demand signal DB.

When the underground demand signal DB becomes "H", O in Fig. 3
The output of the R gate 44 becomes "H", and the output is given to the cranes 11 and 12, which are capable of underground service (the second machine is not shown).

Car 11 is currently available for use on the main floor, so
The signal &M1 becomes "H", and at the time of pulse P2, the output of the AND gate 45 becomes "H", and the memory 69. 70 is set.

In other words, the car 11 is assigned to the basement and main floor demands.

The underground demand allocation signal ADB1 is the signal S in FIG.
ADB and closes the AND gate 32 to prevent other cars from being assigned to underground demand.

Further, the main floor demand assignment signal ADM1 becomes the signal SADM, resets the memory 27, and restricts other cars from being assigned to the main floor demand.

Further, when the AND gate 32 is closed, the output of the inverter 33 becomes "H", the AND gates 34 to 36 are opened, and assignment of other cars is restarted.

In the above example, when a demand is registered, it is captured and assigned to a basket, and when this assignment is completed, demand is captured in a predetermined order from among the demands that have been registered up to that point. I explained what is called the capture method for allocating baskets.

However, it is obvious that the present invention is not limited to this, and may also be applied to a registration method in which cars are allocated in a chronological order in which demands are registered or in a predetermined fixed order.

As explained above, in this invention, when a demand for a specific floor that can only be serviced by a specific car is registered, if this specific car is available, it is possible to After the allocation is temporarily suspended and the specific car is allocated to the demand on the specific floor, the allocation according to the scheduled order is resumed.

As a result, even if there is a specific floor where only specific cars can be serviced, highly efficient allocation calculations are performed, and accordingly, equal elevator service can be provided to all floors.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of band division and elevator car status, FIG. 2 is a logic circuit diagram showing an example of an elevator group management system according to the present invention, and FIG. FIG. 4 is a logic circuit diagram of the allocation circuit, FIG. 4 is a logic circuit diagram of the available car signal circuit for each car, and FIG. 5 is a pulse signal waveform diagram. BUB, 1UB~8UB・・・・・・Basement 1st floor, 1~8
Floor landing call button, 1DB~9DB...1~
9th floor landing call button, BU, 1U~8U, 1D~9D
...Memory, 21-23...OR gate, 24-26...AND gate, 27-29
...Memory, 30...Allocation calculation circuit,
31...OR game and 32...AND
Gate, 33...Inverter 34-36...
...AND gate, 37...Inverter, 3
8-42...OR gate, 43...Inverter, A1, A2...available car signal,
DM: Main floor demand signal, DB: Underground demand signal, ADM: Main floor assignment signal (the last number indicates the machine name. About other signals) ), ADB...underground demand allocation signal, ADH...
...Upper floor down demand assignment signal, AUL...Lower floor up demand assignment signal, DM...Main floor demand signal, DDH...Upper floor down demand signal, DUL.・・・
...lower rising demand signal, ST...stop signal,
DS...Door signal, UD...Direction signal, AMF...Main floor available car signal, AL.
...Lower layer available car signal, AH...Upper layer available car signal. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. Of the multiple cars, a car that has answered all of the assigned hall calls and car calls is considered available, and this available car is allocated to the previously registered demands in the scheduled order, and this allocation is A specific floor demand detection device detects that a demand for a specific floor that can only be serviced by a specific car is registered in an elevator that responds to the demand by a specific car, and when this specific floor demand detection device operates, an allocation canceling device that temporarily suspends the allocation according to the scheduled order if the car is available; and an allocation resuming device that resumes the allocation according to the predetermined order after allocating the specific car to the specific demand. An elevator group control device comprising: