JPS60106776A - Method of controlling group of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a group management control method for elevators, and more particularly to a display in a hall and its control.

[Technical Background of the Invention] In recent years, it has become common for group management control devices to control a plurality of elevators to use small-sized computers such as microcomputers. In such a group management control device, a so-called evaluation formula is used to evaluate response suitability in order to determine which elevator responds to a generated hall call (command). Although there are various forms of this evaluation formula, the evaluation value f1 is usually expressed by a basic quadratic formula.

f1=F (Xj, Ci, Wi)+Tj...
（１） This evaluation formula selects and allocates the elevator that can most rationally respond to the hall call based on the information at the time the hall call occurs.

In this type of elevator group management control, at the same time as the allocation of hall calls is determined, a so-called forecast display is displayed to the waiting hall customers in the form of, for example, the lighting of hall lanterns in the hall based on the allocated call information of each car. In contrast, even if the assignment is decided, the forecast is not displayed to the customers waiting in the hall, but when the response to the assigned call is confirmed and the elevator is given a command to decelerate, a so-called landing indicator is displayed in the form of a flashing lantern. There are methods.

The former, that is, the forecast display method, determines and displays the service elevator immediately after a hall call occurs, so it is necessary for group management control to determine the service elevator due to the response to the hall call, and information on the fullness of the hall during operation. Although the service elevator will be displayed with uncertainty, the forecast will be displayed to the hall customers at the same time as the hall call occurs, so the hall customers will be able to know the service elevator at an early stage, and the psychology of the hall customers will be improved. It can be said that this method focuses on improving customer service.

The latter, that is, the landing display method, is the same as the above forecast display method in that the service elevator is determined almost simultaneously with the occurrence of a hall call, but the allocation information is not immediately displayed to the waiting hall customers, so the next elevator The allocation can be changed relatively freely at any time in response to changes in the operating status of the ball, and it can be said that this system focuses on shortening the actual waiting time for customers waiting for the ball.

In the above forecast display method, if other non-forecast elevators arrive at car calls before the elevator displaying the forecast, or if the waiting time for customers waiting for the ball becomes extremely long, group management control is applied. There is a problem in that a sense of trust is lost. In the case of residents and floor landing display systems, customers waiting in the hall cannot tell which elevator is for each service until the service elevator slows down to reach that floor. There is a problem in that there is a delay in noticing the arrival of the service elevator or the arrival of the service elevator, which may cause the user to miss the elevator.

[Objective of the Invention] The object of the present invention is to operate a plurality of elevators for a plurality of service floors, and to perform a predetermined evaluation calculation for evaluating response suitability for hall calls common to each elevator. In group management control of elevators that selects and responds to service elevators using It is an object of the present invention to provide a group management control method for elevators, which enables rational group management control in which assignments can be freely changed due to fullness, etc.

[Summary of the Invention] The present invention displays a service elevator forecast by lighting a lantern, etc. almost simultaneously with the occurrence of a hall call only on a specific floor (generally a standard floor, etc.) set in advance as a congested floor where congestion is expected. The system is characterized in that for other general floors, that is, non-congested floors, from the moment the service elevator starts decelerating to the hall call, only the landing indication by flashing lanterns, etc. is performed.

[Embodiment of the Invention] First, a building to which a system to which an embodiment of the present invention is applied will be described.

The building schematically shown in Figure 1 is a 10-story building with four elevators, A to D.
The area up to 11i is an express zone, and none of the elevators stop.

FIGS. 2 and 3 show the configuration of a group management control system to which an embodiment of the present invention is applied. Above elevators A to D
The aircraft is controlled by this group management control system.

In Figures 2 and 3, 1 is a ball call memory circuit, and when registering a hall call (command), a register corresponding to the floor direction in which the hall call occurred is set, and the car is When arriving at the floor, the registers are reset. 2A to 2D are elevator operation control devices provided for each of the four elevators A to D, and car status memory circuits 3A to 30. Car call storage circuits 4A to 4D are provided separately.The car state storage circuits 3A to 3D are buffers that hold the car position, driving direction, load signal, etc.Car call storage circuit 4A.
-4D is set when a car call (command) is registered, and is reset when the car arrives at its call floor, that is, its destination floor.

5 is a wiper select circuit. 6 is a small computer using, for example, an 8-bit microcomputer, and has output registers 7, 9, 21 and input registers 8. The output registers 7, 9 and 21 have the function of holding the same output until the next output is issued. Reference numeral 10 denotes a mask condition storage circuit, which stores information on whether or not each elevator is allowed to enter a group. This information is stored in a mask condition table MCT constituting the mask condition storage section 14 in the RAM (random access memory writable/readable) of the small calculation 116.

Note that the wiper select circuit 5 is activated by the sub-address signal output from the output register 7 of the small calculator 116, and predetermined traffic data is sequentially selected from the traffic data group according to the select code output from the output register 7. It is stored in a memory area within the small computer 6 via the register 8. Based on this information, the machine to be assigned to the generated hall call is determined and stored in RA~1 of the small computer 6. The output register 21 is an output register for outputting information from the small computer 6 as to whether display of the forecast for a specific floor is permitted or not.

That is, in FIG. 3, the master condition table MCT stored in the mask condition storage section 14 in the RAM of the small computer 6, the car condition table OCT stored in the car condition storage section 15,
Hall condition table HCT stored in hall condition storage unit 16, predicted arrival time storage unit 17
Based on the stored information of the predicted arrival time table YREST stored in
) Calculate the evaluation value based on the formula, and also use R of small calculation style 6.
The evaluation value storage unit 19 in AM stores the evaluation value for each car from A to D, and the optimum elevator calculation unit 20 determines the service elevator for a newly generated hall call, and outputs the assigned output to the output register 9. Output via

At the same time, permission or disapproval of forecast display is outputted via the output register 21 as required. The data output from the output register 9 is decoded by the decoding circuit 13 and stored as an assigned call in the hall call assignment storage circuits 12A to 12D provided in the elevator operation control system M2A to 2D of the assigned car. A ball lantern (not shown) as an indicator on the floor displays the forecast for the assigned car only for a specific floor. (Details on this point will be described later.) The information stored in the hole call allocation storage circuits 12A to 12D is combined with the contents of the ball call storage circuit 1, stored in the hole condition storage circuit 11, and the information stored in the hole call allocation storage circuits 12A to 12D is stored in the hole condition storage circuit 11. It is stored in the hole condition table HCT in the ball condition storage section 16 via the hole condition table HCT.

Note that each circuit in FIGS. 2 and 3 is connected by a plurality of parallel signal lines, for example eight.

Furthermore, all the registers have a number of bits equivalent to at least one word of the small H1 column 6.

Further, the hall condition table HCT stored in the hall condition storage section 16 in the RAM of the small computer 6 and the car condition table OCT stored in the hall condition storage section 15 have a bit configuration as shown in FIG. ing. In the car condition table OCT, the pitch I-0 indicates running or stopping; 1" indicates running, and 11011 indicates stopping. Pitch 1 and 2 indicate the moving direction of the elevator; When it is "01", it is in the upward direction, when it is 10 IT, it is in the downward direction, and when it is "" o o'', there is no direction. Bits 3 to 7 indicate which position the elevator is in. For example, “00001” means 1pl! ! To, “0”
0010" (1: 2N (, :, "01010" indicates that there is a car on the 10th floor.

Hall condition table l-(CT has a configuration from bit 1 to bit 0 as shown in Fig. 5.
~3, the assignment of each elevator is the hall call number Sera1~
When bit 6 is 1'', it indicates that the allocation is completed, and when it is IN O+8, the allocation is incomplete.
When is 1'', there is a hall call, and when it is 0'', there is no hall call.

Next, an embodiment of the present invention applied to such a system will be described with reference to flowcharts shown in FIGS. 7 and 8.

The process from when a small hall call occurs to an arbitrary floor until a service elevator is determined for that hall call will be explained.

In Fig. 7, start from 01, and set the RAM initialization subroutine address at 02.
In Q3, the car condition of each elevator car is stored in the car condition storage section 15 (car condition table OCT) in the RAM via the wiper select circuit 5 shown in FIG.
, is stored in the car call storage unit 22 (car call table KCT> (select codes 8 to 21). In Q4, the index J for scanning the hall state is initialized.

Next, based on the traffic data stored in the RAM mentioned above,
Perform the following processing.

Since the hall index j was set to j=1 in Q4, 10d (10th floor town hall call) is checked first. The presence or absence of a hall call is determined by the number 1" of the hall condition table HCT in the hall condition storage section 16, "
Since the presence or absence of assignment to the hall call is given by “1” and “0” of bit 6 of the same table, it is 0.
5, the combination of bits 6.7 above will result in “o o”...no hall call...no assignment.
O1*+...Ball called...No assignment" 1
1 ”...Hall call available...Assigned"' 10
”...The hole status can be determined under the conditions of no hall call...allocation.

Therefore, this hole condition table HCT
If the combination of data on pins 1-6 and 7 is (a) "00", the hall call duration counter Tj=O is set in Q6 and the process proceeds to the connector.

(b) In the case of "10", the hall call duration counter is set to Tj = Tj +1 in Q9 and the process proceeds to the connector.

(c) In the case of "01°', after incrementing the hall call duration counter by Tj = Tj +1 in Q8, Qll
And in step Q12, the evaluation formula, that is, the above (1)
The evaluation value f1 or f2 is determined by the formula or the formula (2) described below.
Calculate. After a1 calculation of fl or f2 for all machines using equation (1) or equation (2), flIIlin (flji small) or f 2m1n (
The machine with f2 (minimum) is determined as the service elevator for that call, the optimum machine assignment is output, and the process proceeds to the connector.

(d) In the case of "11", set Tj = Tj +1 in Q7 and proceed to the conjunction. In Q15, it is checked whether the above-mentioned processing has been completed for all floors, and if it has not been completed, J=J+1 is set and the process returns to connector B again. In this way, when the hall calls for all floors from J=1 to J-18 have been processed, the process returns to connector A.

The above is a general processing procedure for allocating ball calls, but the details of the processing between connectors 0 and 0 in Fig.
As shown in the figure.

In this case, in the schematic diagram of the building shown in FIG. Since F (reference floor) is a floor where congestion is predicted, this floor is set as a crowded floor, and a forecast is displayed only for hall calls on this floor, and only landing displays are displayed for other floors. Therefore, the processing when J=10 in the ball condition table HCT is a special processing.

In FIG. 8, the connector C is reached in the state of the "o i" mote, and further, at 020, it is determined whether the J value (Hall index III) being processed at that time matches the reference floor call (J = 1.0 or not). ) is checked, and if it is not a standard floor call, the evaluation value f1 is excluded (Q22).

At this time, if it is a reference floor call, the evaluation value f2 is calculated using the following formula (C21).

f2 = F (Xj) (2) Xj: Assignment is the relative floor difference value f2 up to the target floor, which is determined by the value of Xj as shown in equation (2) above. Here, since a forecast is displayed for the standard floor call, the gist of the present invention is to use the car with the smallest Xj value as the service elevator for the standard floor call. The evaluation value f1 or f2 of this month's number is calculated for the same value of J (C23), and the machine with the minimum evaluation value is selected as the optimal machine (C24). C2
At 5, it is checked whether the J value is the standard floor call, and if it is not the standard floor call, the process proceeds to the connector C2, and if it is the standard floor call, the forecast display permission signal is output to the optimal machine selected at C24 at 026. It is output in the format shown in FIG. 9(b).

Next, at C27, the optimal machine allocation is output in the format shown in FIG. 9(a). The output of C26 is sent from the output register 21 as a signal 21°a to the elevator operation control devices 2A to 2D (hall call assignment storage circuits 12A to 12D) of each elevator.In addition, the optimal@compensation assignment output in C27 is The output register 9 inputs the coded signal 9a as shown in FIG. 9(a) to the decode circuit 13, and then stores it in the hall call allocation storage circuits 12A to 120 as the allocated call for each machine. be done.

For example, if you want to assign the 1st floor (standard floor) call to the A@ machine and allow it to display the forecast, use the Q26 TE shown in Figure 8.
OOOOOOOO1” Exit, C27 “00010”
001''.The output signal is controlled by hardware by the hall call allocation storage circuits 1' 2 A to 12D.

FIG. 10 does not show the detailed structure of the iJ<−Lulanthan display system. In the same figure, the portion related to the lantern display of the hall call assignment storage circuits 12A to 12D on the standard floor, the output register 21, and the lantern display circuits connected thereto are shown for four units (cars A to D).

In FIG. 10, 21 is the output register shown in FIG.
F (1st floor) hall call assignment memory circuits 12A to 12[)
Flip 70 knobs for storing assigned calls, A1A to A1[
), A2A-A2o is an AND gate. Also, A
SA to ASD are astable multivibrators (hereinafter referred to as "astable multis") with an oscillation frequency of IHz, and this frequency is used to vibrate the hall lantern (HL) at the time of landing indication.
The blinking cycle of A~1-ILD> is determined. And O
RA to ORD are OAGOO 1-1 APA to APD are amplifier circuits, HLA to HLD are 'IF (first floor) ball lanterns, and S A - P SD are lantern display power supplies.

Now, let us consider a case where the hall call on the 1st floor is assigned to machine A and the forecast display is permitted.

When the 1F assignment signal is output to machine A, the signal 8SA is input to the flip-flop FFA, and the signal 8SA is input to the flip-flop FFA.
The output Q of the FA is set to HII (high level). Since the forecast display permission signal is also output, bit 7 of the output register 21 is also ii H++, and the output of the AND gate AIA is "H11", and therefore the output of ORA1.ORA is also "H°". The signal is amplified by the amplifier APA, and the ball lantern HLA lights up to display the forecast. When car No. A responds to the 1F assignment call and starts decelerating, signal HL[)A becomes H, clears (resets) flip-flop FFA, and simultaneously inputs into AND gate A2A. AND gate A2A inputs the output with the same period as the astable multi-A
Since it also enters the PA, the hall lantern HLA blinks (indication of landing) at the oscillation cycle of the astable multi-AMA. The above signals HLDA-HLDD indicate that each elevator responds to the call and starts decelerating, then the door is opened between the doors.)
, until closing the door (closing the door) is l Fl 11,
The others are "L" (low level) signals.

In this way, the group management control system uses a predetermined evaluator to determine and allocate a service elevator for a hall call that has been received. By adopting this method, it is possible to realize a control in which a forecast is immediately displayed by lighting a ball lantern in the assigned output poem only for a specific floor set in advance, and only the above-mentioned landing display is displayed for other general floors. can. As a result, on crowded floors, the forecast display allows customers waiting in the hall to be gathered in front of the service elevator before they reach the floor, reducing the time it takes for senior customers to board the service elevator. Since the forecast is not displayed, you can freely change the allocation due to sudden changes in traffic demand or when the scheduled service schedule is full.
In addition to compensating for the mutual shortcomings of the conventional group management control system that displays forecasts for all floors and displays landings on all floors, the synergistic effect enables rational and efficient elevator operation and improves customer service. It is possible to realize a dramatic improvement in service.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with various modifications without changing the gist thereof.

For example, in the above embodiment, the evaluation formula for the hall call on the floor where the forecast is displayed is different from the evaluation formula for the hall call on the floor where the arrival display is performed, and the two are used separately. Depending on the installation situation, traffic demand, etc., it is often effective to use a common evaluation formula.
It is also possible to limit the display to the 1I111 zone, or to vary the floor on which the forecast is displayed and the floor on which the landing display is displayed depending on the situation or by setting the time.

Of course, the type of display means, the form of forecast display, the form of arrival display, etc. may be different from those described above.

- [Effects of the Invention] According to the present invention, it is possible to shorten the time to board a service elevator on a congested floor due to early forecasting, and on a non-congested floor, changes in allocation due to sudden changes in traffic demand or when the service elevator is full, etc. It is possible to provide an elevator group management control method that enables rational group management control that can be carried out freely.

[Brief explanation of drawings]

FIG. 1 is a diagram schematically showing an outline of an elevator in a building that is subject to an elevator group management control system to which an embodiment of the present invention is applied, and FIGS. 2 and 3 are embodiments of the present invention. A block diagram showing a schematic configuration of an elevator group management control system to which this embodiment is applied, and FIGS. The figure is a flowchart t>-1,! for explaining the same embodiment. , FIG. 9 is a diagram showing the output pit 4-mat of the output heat register 9.21 in the same embodiment, and FIG. 10 is a block diagram showing in detail a part of the configuration of the system in the same embodiment. 1... Hall call memory circuit, 2A-2D... Elevator companion system (III device, 3A-3D... Car state memory circuit, 4A-4D... Car call memory circuit, 5...
Wiparsley 91~Circuit, 6...Small calculator, 10...
- Master condition storage circuit, 11... Hall condition storage circuit, 12A to 12D... Hall call assignment storage circuit, 13... Decode circuit. Figure 1 Floor BCD -1111, ---) No. O Throw Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 2 Figure 9 T-do Right slope designation F 0

Claims (1)

[Claims] An elevator in which multiple elevators are put into service for multiple service floors, and one service elevator is selected and determined to respond to a hall call common to each elevator using a predetermined evaluation calculation that evaluates response suitability. In group management control, for a group of elevators in the same bank, as a guide display for the service elevator to the hall, a forecast is made to display the service elevator for a specific floor set in advance at the same time as the answering machine is assigned immediately after a hall call occurs. A group management control method for elevators, characterized in that an arrival display is performed to display a service machine immediately before landing on general floors other than the above-mentioned specific floors.