JPH01308373A - Group-control system controller for elevator - Google Patents

Abstract

PURPOSE:To make improvements in service by installing a comparing means between the number of key unreturned floors and that of free cage units, and a control means, distributing and standing by free cages preferentially in each of key unreturned floor at a time when the number of these key unreturned floors has come less than the number of free cage units. CONSTITUTION:At an overtime zone or a service slack time zone of an elevator, a floor where overtime personnel still remains is specified of whether it is of key unreturned one or not after receiving key control information out of a key control information part 10 at the side of a building management controller. Then, when the number of key unreturned floors has come less than the number of free cage units, one free elevator is distributed to each floor estimating that personnel still remains, and thus each elevator is distributed and on standby in advance, whereby quick service is offered to each user who ends his job and tries to go home.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) This invention relates to a group management control device for elevators, and is particularly applicable to floors that are likely to be used during off-hours such as overtime hours. This invention relates to an elevator group management control device that can keep cars on standby in a distributed manner.

(Prior Art) Generally, in high-rise buildings, etc., elevator group management control devices are widely employed in order to efficiently operate a plurality of elevators. Particularly in recent years, group management control devices using microcomputers have become widespread, and their performance has been further improved compared to conventional IC logic.

On the other hand, the development of microcomputer control has increased the possibility of responding to various customer requests, and customer requests have also become more diverse and specific. For example, if you are working overtime late at night during off-peak hours, there are likely to be plenty of elevators left as there are not many people using them, so ask them to allocate elevators to floors where there are people and have them wait. There are also requests that it should be possible.

In contrast, with conventional group management control systems, distributed control during off-peak periods is performed by dividing the building into multiple zones.
There is no control in place to identify the floor where there are actually people remaining and have them wait on that floor, and the elevator is only dispatched to that floor after the person who has finished overtime calls the hall. In many cases, this did not fully meet the needs of customers.

In addition, some group management control devices have been proposed with a learning function that allows them to identify floors where people tend to stay late, and keep elevators on standby on those floors during off-peak hours. However, since this group management control device also performs statistical control, it is possible to ensure that elevators are always available on floors that are occupied by people who have suddenly worked overtime. It was not possible to keep them on standby in a distributed manner.

(Problem to be solved by the invention) As described above, in the conventional elevator group management control device,
There was a problem in that the elevator's distributed waiting function for floors that were likely to be used during off-peak hours was not able to fully meet the needs of customers.

This invention was made in view of these conventional problems, and it is possible to ensure that elevators are dispersed and on standby on floors with customers during off-peak hours, allowing customers to use the elevators without having to wait. An object of the present invention is to provide an elevator group management control device that can improve the performance of elevators.

[Structure of the Invention] (Means for Solving the Problems) The elevator group management control device of the present invention includes a means for inputting building key management information, and a method for identifying floors to which keys have not been returned from the key management information of this building. A key unreturned floor detection means for detecting,
A means of comparing the number of floors with unreturned keys to the number of free cars, and when the number of floors with unreturned keys becomes less than the number of free cars, free cars are distributed preferentially to each floor with unreturned keys. It is equipped with a control means for making it standby.

(Function) In the elevator group management control device of the present invention, when the number of floors with people remaining is smaller than the number of free elevator cars during off-peak hours such as nighttime, , the building key management information that manages key takeout and key return for each floor is input to the group management control device, and the floor where a person remains is determined from the information on the floors for which keys have not been returned, and the floor is assigned to that floor. Elevators are placed on standby in a distributed manner for each floor, so that they can quickly respond to the use of people leaving that floor.

(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

FIG. 1 shows a block diagram of an elevator group management control device in a case where eight elevators are in service on ten floors, as one embodiment of the present invention.

In Figure 1, IA to IH are elevators A to H.
This is the main control panel for the car, and the car status information necessary to control the door opening/closing status, car movement direction, car position, etc. The bits are arranged in the format shown in FIG. 2 from the control panels IA to IH and inputted to the wiper select circuit 2 by wired-OR combination. The hall call registration circuit 3 is also connected to the wiper selection circuit 2 by wired-or connection. The wiper select recess #I2, the main control panels IA to IH, and the hall call registration circuit 3 are connected by, for example, a 12-bit bus.

The output of the wiper select circuit 2 is connected in 12-bit parallel to the allocation control computer (small computer) 4, and when the computer 4 needs information on each car and hole information, the sub address is sent from the output register 5 of the computer 4. The signal is sent to the wiper select circuit 2, and the car or car corresponding to the sub-address is selected and read into the input register 6.

The output register 7 sends control outputs such as allocated output and distributed standby output to each control panel IA to IH via a decoder circuit 8.
This is what is output to.

The input register 9 contains key management information 10 held by the building.
The output register 11 is a register for reading the information to the group management control device side via the signal line 10A.The output register 11 outputs a predetermined message to the overtime service display devices 128 to 12J installed on each floor, such as "Thank you for your hard work working late." The decoder circuit 13 is used to display a display such as ``Dashita 2''.

The operation of the elevator group management control device having the above configuration will be described next.

Based on the flowchart shown in FIG. 5, the RAM is first initialized (step S1), and the process proceeds to symbol R8P.

Next, J=O (car No. A), step S2>, and the state of the car of car No. A is read from the format shown in FIG. 2 (step S3).

The above operations are repeated until all machines are completed, and after all machines are completed, the process proceeds to symbol B as shown in Figure 6 (step S
4).

For symbol B, the hole index I is set to 0 (10d)
In step S5), <10><1 of the hole condition table HCT having the format shown in FIG.
1>The state of the first hole is determined based on the value of the bit (step S6).

Here, if the <10><11> bits are “00”,
Since there is "no hole call, no assigned car number", the hole interval timer TI is cleared to 0 (step S7), the process proceeds to symbol B2, and the process proceeds to determination of the next hole index.

<10><11 If the bit is "11" or 10', it means "there is a hall call and a service number is present" or "there is no hall call and there is a service number".
The hole interval timer T1 is incremented by +1 (step S8), and the process proceeds to determination of the next pole index.

If the <10><11> bits are “01゛°, then ゛°
There is a hall call and there is no assigned machine number, so symbol B
The program proceeds to OA and then to the response machine selection routine shown in FIG. 8 (step S9).

In the response machine selection routine shown in FIG. 8, it is checked from the clock built into the computer 4 whether or not it is the overtime service time period, and if it is not the overtime service time period, the process proceeds to symbol B1 (step 551); In addition, it is checked whether the floor is for overtime service (step 552).

Incidentally, the overtime service time period is set in advance for each building, but it is usually desirable to set the overtime service time period after 7:00 pm.

In this step S52, if it is not the overtime service floor, Z
If AN(II>≠1, proceed to symbol B1, and if it is an overtime service floor, ZAN(II>=1, proceed to symbol BIA).

In symbol B1, in order to perform normal group management service, the car index J is set to 0 (that is, car No. A), and the already allocated hall call nt beyond the hole index II is sent via symbol H3.

Select n 21..., nh (step S53.3
54).

Next, the predicted arrival times THE of allocated calls and unallocated calls
SP (nt>(i=1.2.”, k>) is determined by the following equation (1) (step 555).

TRE S P (n + ) = Here, TRAN (α1.β1) is from α1st floor to β,
, represents the traveling time to the floor 1, and TlO2 (β1) is β
, represents the total door opening/closing time and opening time on the floor. Moreover, hair is the number of floors (including the nh floor) that the basket stops on the way before going to the rl+ floor.

For example, if a 10d unallocated call occurs while car A is ascending the 8th floor, and car A has an assigned call 7d down on the 7th floor, the arrival time of the 7d allocated call is: The following equation (2) is obtained.

THE S P (n 2) = TRAN (8, 10>+TLO8(10) ten TRAN
(10,7>...(2) Also, the arrival time of the unassigned call of 10d is calculated using the following formula % Formula % Next, the predicted arrival time calculated using the above formula (1) THE S
Appropriate weighting of P (n + ) is performed using a function, for example, the 9th
Weighting is performed using a function as shown in the figure, and an evaluation value S is obtained (step 556).

Perform the above operations on all machines, and the evaluation value of all machines is 5.
(J) is determined (step 557).

Next, the car with the minimum 5 (J) is selected (step 858), the car giving the minimum evaluation value is designated as the service car, and the customer waiting in the hall is notified (step 559).
), return to B2.

In step S52, if the floor is an overtime service floor where ZAN(II>=1), where a person is still working and the key has not been returned, an 11-floor hall is assigned to the symbol BIA. This overtime service basket is determined based on the flowchart shown in FIG. 7, as will be described later, and has already been determined before this response number selection routine is executed. , and return to symbol B2 shown in Figure 6 (
Step 860.861>.

At symbol B2, it is checked whether the search for halls on all floors has been completed, and after the completion of the search on all floors, the process proceeds to symbol D shown in FIG. 7 (step 510).

In symbol D, the number of free cars is counted from the car status table format (CCT) shown in Figure 2.
Furthermore, the key management information KCT from the key management information section 10 is
Read as in the format shown in Figure (a) (Step S1
1.512).

Next, check whether the current time is in the overtime service time zone or not. If it is outside the overtime service time zone, proceed to symbol D1 and set the overtime service floor determination flag ZAN (II) for all floors.
=O, returns to the repeat start point (R3P) (step 514), and provides normal time service.

During overtime service hours, compare the number of floors with unreturned keys and the number of free cars (FC) in step 815.
), if the number of free cars is smaller, it is not possible to distribute the elevators to all floors where there are still people, so the process proceeds to Dl, the process of step S14 described above is performed, and normal service is performed. . .

In this step 315, if the number of floors with unreturned keys is less than or equal to the number of free cars, the process proceeds to symbol DIA, sets the car index J to 0 (step 516), and frees cars from car A. It is checked whether it is a car (step 517).

Here, if car No. A is not a free car, the process advances to symbol DIC, and then to car No. B, car C, and so on in order.

If car No. A is a free car, check the floor index II (this floor index II does not have a directionality like the hall index ■) from 1 (step 518), and first check the floor index II. Check whether the floor is under overtime service (step 519), and
If (I I) = 1 and overtime service is in progress, proceed to DAB,
If not, check the key return status in Hall II (step 520).

Here, if the key has been returned, the overtime service flag should be reset to ZAN (II>=O), step 521.
Proceed to symbol DIB.

If the key has not been returned, the A machine will be distributed to the Hall II floor and the overtime service flag ZAN (II) will be set to
1, and output the overtime service display for the hall II floor to the overtime service displays 12A to 12J on the corresponding floor (steps 822 to 524), symbol DI
Proceed to C (steps 822-524).

In the symbol DIB, check whether all floors have been completed.
If it is not completed, the floor index II is incremented by +1 and the same process is performed for the next floor (step 825), and after all floors are completed, the process advances to the symbol DIC.
For all machines, the free running is determined and the overtime service flag is set (step S26>), and after completion of all machines, the repeat start point (R8P) shown in Fig. 5 is set.
, and repeat the same process cyclically.

In this way, during overtime hours when elevators are not in use, the key management information from the building management control device is received, and the remaining floors where overtime workers are located are checked to determine whether or not the keys have not been returned. When the number of floors with unreturned keys becomes less than the number of free elevators, free elevators are dispatched one by one to the floors where people are presumed to be working overtime, and the elevators are placed on standby in a distributed manner. They provide prompt service to customers who are heading home after work.

If a free car is kept on standby on a floor where a person working overtime is left, the elevator door should be left open unless there is a hall call from another floor, and the reference floor direction should be given priority. If this were done, when a customer arrived at the hall, they would be able to get off to the standard floor by simply getting into the car, which would further improve the service provided to customers who are tired from work.

[Effects of the Invention] As described above, according to the present invention, it is possible to use building key management information to ensure that people remain on a small number of floors to work during off-peak hours, such as at night. In such cases, free elevators can be placed on standby at floors where keys have not been returned, so that a person who has finished work can call the hall and call the hall without having to wait for the responding elevator to arrive. Elevators that are kept on standby on the floor can be immediately put into service, improving service.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a structural diagram of elevator car state table data used in the above embodiment, and FIG. 3 is a structural diagram of hall call state table data used in the above embodiment. FIG. 4 is a structural diagram of the key management information data used in the above embodiment, FIGS. 5 to 7 are flowcharts of the main routine explaining the operation of the above embodiment, and FIG. 8 is the response machine selection routine of the above embodiment. FIG. 9 is a graph showing an example of the weighting function of the predicted waiting time used in the above embodiment. ■A~IH... Main control panel 2... Wiper select circuit 3... Hall call registration circuit 4... Computer 5... Output register 6.
...Input register 7...Output register 8...
Decoder circuit 9... Input register 10... Key management information section 11... Output registers 12A to 12J
... Overtime service display 13 ... Decoder circuit

Claims (1)

[Claims] A means for inputting building key management information, a means for detecting floors for which keys have not been returned from the key management information of this building, and a comparison between the number of floors for which keys have not been returned and the number of free cars. and control means for distributing and waiting free cars preferentially to each floor for which keys have not been returned when the number of floors for which keys have not been returned is less than the number of free cars. .