JPH08198532A - Group supervisory operation control device for elevator - Google Patents

Abstract

PURPOSE: To relieve long waiting time and enable the selection of an elevator of good operating efficiency by computing the evaluation value of reexamination for reassignment from a trafffic flow mode and the past waiting time distribution or congestion distribution, and reassigning landing calls with the bad evaluation vlaue or requesting reexamination for reassignment. CONSTITUTION: A program SF30 has a past learning data table SF31, learns the congestion distribution and waiting time distribution and prepares the judgment value of reassignment. The program SF30 therefore receives and learns elevator operating state data prepared by a control program SF10, computes the evaluation value for judging reassigned request landing calls, on the basis of the learned data, and stores this evaluation value in a reassignment control table SF14. A communication program SF20 changes and sets a rule parameter table SF15 including reassignment rules and parameters, according to a signal received as input information from a setting tool through a transmission line L6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator group supervisory control system, and more particularly to an elevator group supervisory control system suitable for reallocation to hall calls with a low rating.

[0002]

2. Description of the Related Art In a conventional group-controlled elevator, reassignment is performed by reviewing the long waiting time for hall calls in order to improve operation efficiency and service to users. For example, as described in Japanese Patent Laid-Open No. 58-125579, there is a method in which a lower limit value is set as a criterion according to the situation of a hall call at that time, and the criterion is automatically changed. In addition,
56-75366 gazette determines the average hall call duration from the number of calls and the hall call duration within the specified time, and compares that each hall call duration is longer than a predetermined value with respect to the average value. It describes that long-term waiting is determined.

Long-waiting reallocation is also performed in consideration of the time required for one round of the elevator. For example, Japanese Patent Laid-Open No. 4-378
In No. 6, when a hall call occurs, the waiting time until answering the call, one round time, and the average of one round time are calculated, and when the waiting time exceeds the above average value, the assignment of the hall call is changed. . Japanese Unexamined Patent Publication (Kokai) No. 4-37146 describes that hall calls are reassigned that are longer than a value obtained by dividing one round-trip time of an elevator by the number of elevators.

Further, in Japanese Patent Laid-Open No. 4-371466, when the number of operating elevators changes, the judgment value of the long waiting prediction judgment time for hall calls is changed.

Further, Japanese Unexamined Patent Publication No. 59-118670 discloses that the unanswered time corresponding to the limit of the long waiting rate is obtained and reallocated based on the unanswered time in the past fixed period and the distribution of the number of calls. Has been done.

[0006]

In the above-mentioned prior art, in order to improve operation efficiency such as average hall call duration time, reassignment is performed by reviewing within a range in which deterioration of overall performance is minimized. . However, if the re-allocation is done indiscriminately, the allocation will not be fixed
Therefore, the performance is deteriorated.

An object of the present invention is to prevent a long wait from occurring by limiting a certain level of reallocation to a reallocation number that matches an instantaneous situation. In addition, by reviewing the long-waiting judgment or congestion value judgment that reallocates or requests reallocation based on past learning data, the waiting time in the hall of the user due to the passage of elevators or refusal of boarding is shortened, and satisfaction level is improved. It is an object of the present invention to provide an elevator group management control device that is expensive and does not cause unnecessary operation.

Further, by setting the long waiting time determination as the estimated arrival time, the stable reallocation of elevators can be achieved without drastically increasing reallocation even when the operating situation changes drastically due to a sudden increase in traffic demand. It is to be realized.

[0009]

[Means for Solving the Problems] In order to achieve the above object, a review evaluation value for performing reassignment is calculated by learning the traffic flow mode and the past waiting time distribution or learning the congestion degree distribution, and performing the evaluation. A reassignment means is provided to reassign or request reassignment of hall calls with poor values.

In the hall call reassignment determination, there is provided a determining means for reassigning when the time difference between the reassigned elevator and the already assigned elevators to respond to the hall call is a predetermined value or more.

Further, as a simple realization method, there is provided a judging means for judging that the estimated arrival time of the already-allocated elevator is equal to or more than a predetermined value when the re-allocation hall call is judged.

[0012]

By providing the above-mentioned reassignment means and determination means, frequent reassignment can be prevented, user satisfaction can be improved and operation efficiency can be prevented from lowering. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows the overall system configuration of the present invention. The elevator control device 1 is composed of a group management control device 10 and respective unit control devices 20 to 23, and the contents of the configuration are a well-known microcomputer control system.
Inputs to the group management control device 10 include signals from the hall call registration device 11 on each floor and signals from the building management device 12, and outputs to the voice guidance device 13 of the hall and the hall common to all halls. There are signals from the display device 14 and the like. These signals are transmitted via the transmission line L8. The unit control devices 20 to 23 control the traveling of the elevator cars 30 to 33 and the doors, and include an in-car alarm 15 including a car display and a car voice guidance device and hall lanterns and chimes. Hall alarm 1 for each unit
6 is controlled. Further, the group management control device 10 receives a command from the setting device 2 for resetting control rules such as reassignment request conditions, conditions for detecting the number of elevators that can be assigned, reassignment determination conditions for reviewing assigned cars, and the like. It is transmitted via the transmission line L6.

FIG. 2 is a software configuration diagram showing an embodiment of the group management control device 10.

As a software configuration, an operation control program SF10 for directly instructing call allocation processing and group management control of elevators based on information from the rule / parameter table SF15 relating to hall call allocation control and controlling group management operation is provided. Have. Further, as the input information of the program SF10, the elevator control data table SF11 stores signals such as elevator position, direction, and car call transmitted from the machine control devices 20 to 23 via the transmission line L7. Further, the hall call registration device 11 and others communicate with each other via the transmission line L8, and communicate with the hall call table SF12, the number of elevator group management machines, speed, door width, service floor, and call types that can respond. , An elevator specification table SF13 having common specifications such as floor pitches, a reallocation control table SF14, and a rule parameter table SF15.

The program SF30 is for learning the congestion degree distribution and waiting time distribution of elevators and creating a determination value for reallocation, and has a past learning data table SF31. The program SF30 receives and learns data on the operating status of the elevator by the control program SF10. An evaluation value for determining a reallocation request hall call is calculated based on the learned data, and the evaluation value is stored in the reallocation control table.

The other program is a communication program SF20 with an externally provided control target or control rule for giving a control rule, and this program follows the signal received from the setting tool as input information via the transmission line L6. The rule / parameter table SF15 including rules and parameters for reallocation is changed and set.

Although not shown, a process of transmitting data of an arbitrary table to the external maintenance device is also performed.

The programs SF10, SF20 and SF
30 is a system program that is divided into a plurality of tasks to perform efficient control, that is, an operating system
It shall be managed under S).

Therefore, the program can be started up freely from the system timer or from other programs.

FIG. 3 is a data table configuration diagram used in the group management control device 10. Elevator control data table SF11, hall call table SF12,
Elevator specification table SF13, reallocation control table SF14, rule / parameter table SF15,
Each table of the past learning data table SF31 is composed of each data block shown in the figure.

Here, the variable k added to the table arrangement is the elevator machine number, the variable m is the hall call registration device number for the same hall call, the variable j is the hall call direction, and the variable i is the floor. Shows.

FIG. 4 is an overall processing flowchart of the operation processing program by the operation control program SF10.
The operation control program SF10 is started after the power is turned on or by restarting.

First, in the initial process E10, an initial process such as a clear process for the elevator control data table SF11 and the like is executed. Then, steps E20 to E100
The group management control is executed by repeatedly executing the power supply operation until the power is turned off or a program error occurs. In the input / output and transmission processing of step E20, the operation status data of each car such as car calls from the elevator cars 30 to 33 are fetched and the data transmission processing with the floor hall call registration device 11 is performed.

The hall call registration process at step E30 is as follows.
Based on the input of the hall call button signal, the hall call is registered in the hall call registration table HMT (j, i).
In step E40, the time until the elevator responds to the hall call is indicated by the hall call duration table HTM.
It is stored in (k, j, i), and the traffic demand mode is identified in step E50. In step E60, data such as the hall call duration table HTM (k, j, i), the assigned hall call table HDT (k, j, i) and the expected congestion degree value WGT (k, j, i) in the car Thus, the detection processing is performed as the number of elevators to which the unoccupied or free cars can be assigned.

At step E70, the processing for extracting the reassigned hall call is performed as shown in FIG. In step E710 of FIG. 5, it is determined whether or not there is a past learning data table SF31. If not, the process ends. If there is learning data, steps E720, E
In the loop processing of 730 and E735, in-car congestion degree value data table GWGT (k, j, i) at arrival, hall call duration table GHTM (k, j, i), etc. in the relevant time zone, or traffic flow mode By using the past data of all floors (m, j, i), the occurrence rate of hall call duration etc. is calculated, and the evaluation value table MHMJT based on the learning data is calculated.
(m, j, i) and fullness evaluation value table MWGTMT (m, j, i) are created. In step E740, the evaluation value table MHMJT (m, j, i) and the full evaluation value table MWGTMT (m, j, i) based on the learning data of all floors are sorted in the order of poor evaluation, and the reallocation evaluation table MHMSOT (m, Create j, i). In step E750, the number of reallocable elevators that can respond to the hall call among the allocatable elevators detected in step E60 is calculated by n2 = number of elevators × k1. k1 is a variable for calculating the elevator required for calling the hall.

Further, although not shown in the figure, in order to prevent the reassignment from dramatically increasing, it is necessary to limit the number of hall calls for the number of elevators. Therefore, the calculation result number n × the number of hall calls assigned- (unassigned) The number of hall calls)-(the number of hall calls that have undergone reservation change) is calculated, so that the number of hall calls that need to be allocated is limited, and elevator control becomes smoother.

At step E760, the call in the hall call registration table HMT (m, j, i) is MHMSOT (m, j, i).
It is determined whether or not requirements such as being included in the top two n2 of i) or being within a predetermined car congestion degree value are satisfied, and in step E765, the time until the hall call response is concerned. It is determined whether the difference between the elevator and the reassigned elevator is a predetermined time (30 seconds) or more, and the reassignment request flag MHRASIT (m, j, i) is set (step E770). As a result, a reallocation permission signal is transmitted to SF10.

In the case of reallocation, a means for storing the assigned elevator selected at the time of newly assigning a hall call as a reserved elevator and turning on the reservation, etc.,
The means for storing the re-assigned elevator selected separately by the re-assigning means, the means for maintaining the lighting of the reserved lamp even if the assigned elevator is stored once, and the structure for returning to the reserved elevator are disclosed in JP-B-63-343. Since it is publicly known, the description thereof is omitted here. At step E90, guidance is displayed on the hall alarm of the assigned elevator.
An example of the display is shown in FIG.

In step E80, a hall call that needs to be newly reallocated is detected and the processing is performed again.

FIG. 7 is a diagram for specifically explaining an embodiment of reallocation.

In this example, it is assumed that a DOWN call has occurred on the fifth floor and is assigned to the first car. The calls already assigned to the first car are UP calls on the third and fourth floors, and DOWN calls on the fifth floor. It takes 70 seconds to answer the DOWN call on the 5th floor. Based on the past learning data, the waiting time occurrence probabilities are sorted in ascending order, and the 5% long waiting rate + predetermined value (the long waiting time determination time L
Reassignment evaluation table MHMSOT (f) based on the above-mentioned hall call and car congestion degree value distribution (shown in FIG. 8)
(F represents (m, j, i)). The required conditions for responding to the hall call are long wait determination time LT = 68 seconds or less, and car congestion value of less than 50% n = 4 (2, 3,
Units 4 and 6) × 0.8 / 2 = 1.5 units for the DOWN on the 5th floor
It is a condition assigned to a call. Therefore, elevators 2, 3 and 4 other than Unit 6 can be reallocated by judging the congestion degree value in the car, and Unit 2 or 3 whose hall arrival time between the elevator and the elevator concerned is within 30 seconds
It will be reassigned to the machine.

FIG. 8 is a flow chart for reviewing the reassignment process of another embodiment.

This process is intended for hall calls of UP and DOWN on all floors, and it is confirmed in step P820 that the hall call is registered in HMT (j, i) by the hall call registration process. If it is determined that the hall is not called, the following processing is not performed.

In step P830, it is determined whether or not the elevators guided to the hall and the elevators allocated by the processing of the operating program of SF10 match, and in steps P840 and P850, the predicted waiting time or predicted arrival of the allocated elevators is determined. Time ARIVT
(Or ARIVT2) or whether the estimated arrival congestion degree value WGT (k, j, i) in the car of the assigned elevator is larger than the reallocation evaluation table MHMSOT (m, j, i). As a result of the comparison, if either one is larger, the hall call reallocation processing is performed in Step P870. Next, in Step P860, it is confirmed whether or not there is a first-arriving elevator by a car call, and based on the result, whether or not reallocation is to be performed is determined.

If there is a discrepancy between the guidance reservation hall call and the assigned hall call during the elevator allocation process in step P830, the evaluation value of the guidance reservation elevator is reduced due to factors such as shortening of the estimated waiting time or elimination of congestion. It is determined whether or not it is recovered, and if the assigned elevator is approaching the hall to which the assigned elevator is assigned in step P834, the reservation lamp is changed from the guidance reservation elevator to the assigned elevator (step P836).

FIG. 9 shows an example of guidance notification of reassignment.

When the allocation is changed in step E80, the user is notified by the hall notification device 16 on each floor from the reallocation notification command table MHAPRT (j, i).

[0040]

According to the present invention, the reallocation process can be performed based on the past learning data under the conditions and rules suitable for the demand and time zone of the building and the status of each elevator, and the past optimal allocation is possible. It is possible to provide an elevator group management control device in which a long waiting time is alleviated by detecting and allocating a car, and an elevator with high operation efficiency can be selected.

[Brief description of drawings]

FIG. 1 is a hardware configuration diagram of a group management control device of the present invention.

FIG. 2 is a software configuration diagram of a group management control device.

FIG. 3 is a configuration diagram of a data table.

FIG. 4 is an overall flowchart of an operation processing program.

FIG. 5: Extraction processing of reassigned hall calls.

FIG. 6 is a long waiting time occurrence distribution map.

FIG. 7 is a diagram showing an example of reallocation.

FIG. 8 is a flowchart of reassignment review processing according to another embodiment.

FIG. 9 is a display example and a notification example of a hall on the 5th floor.

[Explanation of symbols]

1 ... Elevator control device, 10 ... Group management control device, 1
1 ... Hall call registration device, 12 ... Building management device, 13 ...
Hall voice guidance device, 14 ... Hall display device, 15 ...
In-car alarm, 16 ... Hall alarm, 20-23 ... Unit control device, 30-33 ... Car.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisako Shinsaka 2 days at 832 Horiguchi, Hitachinaka City, Ibaraki Prefecture System Plaza Katsuta Hitachi Mito Engineering Co., Ltd. (72) Inventor Kenji Yoneda 1070, Ige, Hitachinaka City, Ibaraki Prefecture Hitachi Ltd. Mito Plant (72) Inventor Kenji Endo 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd.

Claims (6)

[Claims] 1. A plurality of elevators operating a plurality of floors, a plurality of hall call registration devices respectively provided on the plurality of floors, and an evaluation index for a hall call is calculated and registered for each elevator. In an elevator group management control device including a hall call assigning unit that assigns a hall call by selecting an elevator to be serviced for the hall call using the evaluation index, the group management control unit determines a distribution of waiting times. A learning means for learning, a determining means for determining a long waiting hall call time of a predetermined ratio to the number of hall calls based on the learned data, a judging means for judging a long waiting hall call to be reviewed, and a waiting for the hall call to be reviewed Revised long waiting time calculation means for calculating time and re-allocated vehicle number detection means for detecting the number of elevators that can be allocated And an allowable number calculating means for determining a review number based on the detected number, and a hall call within the allowable number is selected from the assigned hall calls exceeding the review long waiting time and a reassignment command is issued. An elevator group management control device comprising long-waiting reassignment requesting means and reassigning means for selecting and allocating a hall call for which reassignment is requested from the elevators. 2. A plurality of elevators operating on a plurality of floors, a plurality of hall call registration devices provided on the plurality of floors, and a plurality of car congestions corresponding to the plurality of floors, respectively. Degree registration device and an index for the congestion degree in the car for each of the cars, and an elevator to be serviced using the evaluation index for the registered congestion degree in the car is selected, and hall calls are assigned In the elevator group management control device including means, the group management control device is a learning unit that learns a distribution of congestion degrees, and a predetermined ratio from a larger congestion degree value in the car based on the learned data. Recalculated in-car congestion degree value calculation means for obtaining the in-car congestion degree and setting it as the revised in-car congestion degree value, and re-allocated vehicle number detection means for detecting the number of allocable elevators, A permissible number calculation means for determining the number of reassessments based on the detected number of units, and a reassignment command by selecting a hall call within the permissible number from among the assigned hall calls exceeding the above-mentioned congestion degree value in the car An elevator group management control device comprising long-waiting reassignment requesting means and reassigning means for selecting and allocating a hall call for which reassignment is requested from the elevators. 3. The reallocating means according to claim 1,
When the difference between the evaluation value of the reassignable elevator and the evaluation value of the already assigned and currently guided elevator is not less than a predetermined value, the reassignable elevator is assigned. . 4. The elevator group management control according to claim 1 or 2, wherein the reassignment means is an elevator which is already assigned and is being guided to a user on the floor and which can be reassigned. apparatus. 5. The group of elevators according to claim 1, wherein the reassignable number-of-units detecting means determines whether or not the elevator is an allocatable elevator by whether it is a full car or a free car. Management control device. 6. The allocation change review means according to claim 1 or 2, wherein the reassignment means determines whether or not a significant change has occurred in an operation status after reassigning to an elevator different from an already assigned elevator. An elevator group management control device, wherein when the change reviewing unit determines that a significant change has occurred, the elevator is reassigned to the already assigned elevator.