JPS6141825B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a group management device for distributing elevator cars to standby.

In group-controlled elevators, during off-peak hours, cars are dispersed throughout the building and placed on standby so that future calls to the hall can be answered in a short waiting time.

However, in the conventional system, the cars are simply distributed to multiple bands determined in advance at the time of installation or to multiple key service floors (company executive office floor, entrance floor). As a result, predictions for future hall calls that will occur after distributed waiting are insufficient;
The probability of providing prompt service to such a boarding call was extremely low. Additionally, it has been difficult to adequately respond to the changing traffic demands of buildings. Furthermore, since there are many forms of transportation that differ from building to building, it is difficult to provide sufficient service to each building with uniform distributed waiting.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned drawbacks, and aims to provide an elevator group management system capable of performing distributed waiting in order to provide services that adequately respond to changing traffic demands.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In addition, to simplify the explanation,
Here, it is assumed that the 5th floor is serviced by two cars, but the principle remains exactly the same even if the number of floors and the number of cars change.

In each of the above figures, an elevator group management device according to an embodiment of the invention recited in claim 1 is configured to count the number of hall calls for each floor.
16, and each of the counted values of the counting devices 9 to 16 is compared by the comparators 34 to 43, and based on the comparison results of the comparators 34 to 43, floors with large counted values are sequentially detected. The gates 59 to 63 emit the distributed waiting floor signals corresponding to the detected floors for a preset number of cars to be placed on standby in a distributed manner.

In the figure, 1 is an up-hall call signal that becomes "H" when an up-hall call on the 1st floor is registered, 2 is an up-hall call signal on the 2nd floor, 3 is a down-hall call signal on the 2nd floor, and 4 is a down-hall call signal on the 2nd floor. Also on the 3rd floor, the up call signal for the landing,
5 is also a call signal for going down the landing on the 3rd floor, 6 is also a call signal for going up the landing on the 4th floor, 7 is a call signal for going down the landing on the 4th floor, 8 is a call signal for going down the landing on the 5th floor, 9
- 16 is a hall call counting device that adds up the input every time the input becomes "H"; 17 to 19 are adders that add up the number of up calls and the number of down calls; 20 is a distributed standby This is a distributed standby command signal that becomes "H" when the operating condition is such that it should be performed, and is input from a group control device (not shown). 21-25
is a gate, which is opened by the distributed standby command signal 20 and outputs the input as it is as outputs 21a to 25a; 26 to 31 are OR gates; 32 is a distributed standby end pulse signal that becomes "H" when the distributed standby is completed; Input from management device (not shown), 33
is a reset pulse signal that becomes "H" when the power is turned on or when an appropriate switch is closed, and 34 to 43 are comparators. For example, the comparator 34 is a signal 21a ≥ signal 22a.
When signal 21a<signal 22a, output 34a is set to "H", and when signal 21a<signal 22a, output 34b is set to "H". Similarly, outputs 35a to 43a or outputs 35b to
43b is set to "H". 44 to 48 are AND gates, 44a to 48a are their outputs, 49 to 53 are memories that are set by the input and set the outputs 49a to 53a to "H", and are reset by the output 58a described later, 54 is an OR gate, and 55 is a memory. In the monostable multivibrator, 56 is a counting device, and 57 is a decoder. When the counted value becomes equal to the number of installed cars, the output 57a becomes "H". 58 is an OR gate, 58a is its output, and 59 to 63 are gates, which are opened by signal 57a and input directly to the first to fifth floors.
The signals are input to the group management device as floor distributed standby floor signals 59a to 63a.

Next, the operation of this embodiment will be explained.

Normally, the output of OR gates 27 to 31 is "L"
Since no reset signal is input to the counting devices 9 to 16, they are in a counting enabled state, and the inputs are added up every time a hall call is registered. The number of hall calls (output of each counting device 9 to 16) is 1
The floors and the 5th floor are input as they are to gates 21 and 25, and the sums of the up calls and down calls for the 2nd to 4th floors are added by adders 17 to 19 and input to gates 22 to 24. When the distributed standby command signal 20 is input, the gates 21 to 25 are opened, and the number of hall calls generated is output to the comparators 34 to 25a as outputs 21a to 25a.
3 is input. Comparators 34 to 43 compare the magnitudes of their respective inputs, and output outputs 34a to 43, respectively.
43a or the outputs 34b to 43b are set to "H".

Now, assuming that there is a magnitude relationship of output 21a>output 24a>output 22a>output 23a>output 25a, the outputs 34a to 37a of the comparators 34 to 37 become "H", and only the input of the AND gate 44 becomes "H". It becomes "H" and its output 44a becomes "H".
In other words, since the inputs of the other AND gates 45 to 48 do not all become "H", the output 45
a to 48a are "L". This output 44a causes the output of the OR gate 54 to become "H", and the monostable multivibrator 55 generates one pulse.
Thereby, the counting device 56 counts one and sends it to the decoder 57. On the other hand, the memory 49 is set by the output 44a, and the output 49a becomes "H".
Therefore, the output of the OR gate 27 also becomes "H" and the counting device 9 is reset. Therefore, the magnitude relationship of the number of hall calls is output 24a>output 22a
>Output 23a>Output 25a>Output 21a,
Comparators 36, 39, 41, 43 have outputs 36b, 3
9b, 41b, and 43a become "H", and only the output 47a of the AND gate 47 becomes "H". The memory 52 is set by this output 47a, and at the same time the counting device 56 adds up one value, and its output becomes "2". Since this matches the number of installed cars (2 cars), the output 57a of the decoder 57 is "H".
becomes. The gates 59 to 63 are now opened, and the outputs 59a and 62a of the gates 59 and 62 corresponding to the memories 49 and 52 become "H" and are output to the group management device. This group management device outputs this output 59a,
62a is calculated as a distributed waiting floor signal, and the car is
They will be spread out on standby on the 4th and 4th floors. Further, since the output 57a becomes "H", the outputs of the OR gates 26-31 also become "H", and the counting devices 9-16 are reset. Since the distributed standby has now ended, the distributed standby end pulse signal 32 is input from the group control device (not shown) and becomes "H", and the output of the OR gate 58 also becomes "H", and the counting device 56 and memory 49 to 53 are reset to prepare for the next calculation.

Next, the elevator group management device according to an embodiment of the invention recited in claim 2 counts the number of hall calls generated for each floor by the counting devices 9 to 16. ~16 count values are compared in comparators 34 to 43, and this comparator 34
Based on the comparison results of steps 59 to 43, floors with large count values are sequentially detected, and the gates 59 to 63 issue the distributed waiting floor signals corresponding to the detected floors for a preset number of distributed waiting cars. , the structure is such that when the distributed waiting floor signal is issued, the transmission of the distributed waiting floor signal to the adjacent floor is prevented.
The transmission of this distributed waiting floor signal is blocked by adding a condition to the distributed waiting floor designation. In other words, the outputs 49a to 53a of the memories 49 to 53 not only reset the corresponding counters (for example, the output 49a resets the counting device 9), but also the adjacent counting devices (for example, (The output 49a also resets the counting device 10.) This makes it possible to prevent the cars from being dispersed and waiting on adjacent floors.

As explained above, this invention counts and compares the number of hall calls that occur on each floor, detects the floor with a large counted value, issues a distributed waiting floor signal, and distributes cars to that floor. This makes it possible to increase the probability that a hall call that occurs after the distributed waiting floor matches the distributed waiting floor, and it is possible to provide a service that fully responds to changing traffic demands.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram for detecting the number of hall calls, showing an embodiment of an elevator group management device according to the present invention;
FIG. 2 is also a distributed waiting floor detection circuit diagram. 1... 1st floor landing up call signal, 2... 2nd floor landing up call signal, 3... Same left down call signal, 4... 3rd floor landing up call signal, 5... Same left down landing call signal, 6... 4th floor landing up call signal, 7... Same left down call signal, 8...
5th floor landing call signal, 9-16... Hall call generation counting device, 17-19... Adder, 20... Distributed standby command signal, 21-25... Gate, 26-31...
OR gate, 34-43... Comparator, 44-48...
AND gate, 49-53...memory, 54...OR gate, 55...monostable multivibrator, 56...
Counting device, 57...decoder, 59a-63a...1
Distributed waiting floor signals for floors to 5th floor. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of Claims] 1. In a system in which when a distributed waiting floor signal is issued, cars are made to stand by in a distributed manner at the floor designated by the signal, a counting device for counting the number of hall calls for each floor, and a counting device for counting the number of hall calls for each floor; Compare each value,
A floor detection device that sequentially detects the floors with a large count value based on the comparison result, a number setting device that sets the number of cars to be distributed and on standby in advance, and a number of the above-mentioned floor detection devices set in this number setting device. Elevator group management, comprising a signal generator for emitting the distributed waiting floor signal corresponding to the detected floor, and configured to cause cars to stand by in a distributed manner based on the distributed waiting floor signal of the signal generator. Device. 2. When a distributed waiting floor signal is issued, the cars are distributed to the floors designated by the signal, and a counting device that counts the number of hall calls for each floor is used, and the counts for each floor are compared,
A floor detection device that sequentially detects the floors with a large count value based on the comparison result, a number setting device that sets the number of cars to be distributed and on standby in advance, and a number of the above-mentioned floor detection devices set in this number setting device. The present invention is configured to include a signal generating device that emits the distributed waiting floor signal corresponding to the detected floor, and a blocking circuit that prevents transmission of the distributed waiting floor signal to an adjacent floor when the distributed waiting floor signal is issued. An elevator group control device characterized by: