KR100202705B1 - Assignment error correction method of elevator group control system - Google Patents

Abstract

The present invention relates to a technique for reducing the possibility of occurrence of service allocation error in an elevator military management system. In the conventional method of assigning a military management system, in some cases, until a time that does not cause a passenger to feel bored waiting elapses. Although it is possible to reduce the allocation error by collecting the actual information instead of the predicted information while waiting, there is a defect that it waits for a long time due to excessive immediate allocation.

Accordingly, in order to solve this problem, the present invention sets a call allocation delayable time when a hole call occurs, checks whether there is a lift that satisfies the allocation delay condition, and if the delay condition is established based on the inspection result, the call is called. During the allocation delay time, the allocation of the hall call is delayed to collect as much information as possible, then the comprehensive evaluation value for each elevator is calculated to allocate the optimal elevator.If the delay condition is not established, the call allocation delay time is minimized. .

Description

Allocation Error Correction Method of Elevator Military Management System

1 is a block diagram of a general military management system.

1 is a signal flow diagram for a method of allocating a call in a general military management system.

3 is an allocation delay monitoring table according to the present invention.

4 is a table of operating conditions of each elevator for explaining the hall call allocation delay condition check.

5 is a signal flow diagram for the allocation error correction method of the military management system of the present invention.

6 is a detailed signal flow diagram of the call allocation delay check process in FIG.

* Explanation of symbols for main parts of the drawings

10: military management system 11: communication management

12: operation control unit 13: statistical processing unit

14: Calling registration table 15: Calling assignment table

16: call assignment unit 17: traffic flow learning unit

18: traffic flow database 21A-21N: elevator

22A-22N: Platform Control System

The present invention relates to a technique for reducing the likelihood of occurrence of a service allocation error in an elevator group management system. Particularly, when a call is generated by a passenger on the hall side, an allocation of a hall call that is generated without an immediate assignment in response to the call is assigned. The present invention relates to a method for correcting an allocation error of an elevator group management system, which collects the actual information generated for a predetermined time in a delayed state, and then allocates an optimal breath based on the collected operation information.

In the general elevator military management system, to reduce the boredom of passengers waiting at the platform, when a call is generated, the operation status of each unit is immediately identified at the point where the call is generated, and the optimal call is assigned. However, when the assignment is performed immediately, the operation state of the elevators incorporated into the system frequently changes until the service operation starts after the assignment, and thus the predicted values are incorrect in the allocation process, thereby causing an allocation error. Due to such an allocation error, passengers may experience inconvenience such as waiting for a long time.

Therefore, in order to solve this problem, the present invention is to minimize the prediction requirements in the allocation process by delaying the assignment for a predetermined time and embodying the elevator information that was expected to be changed in the near future.

FIG. 1 is a block diagram of a general military management system. As shown therein, a communication management unit 11 for data transmission and reception between the elevators 21A-21N and the elevator control apparatuses 22A-22N and the military management system 10 is shown. )Wow; An operation control unit 12 which detects that a utilization state of the elevator control system is generated and performs a function such as a special operation; A statistical processor 13 for collecting and arranging various statistical data for evaluating the driving performance of the military management system 10; Hall call registration table 14 that stores the hole call generated in the military management system 10 when the hall button input signal generated at the platform is inputted to the military management system 10 through the data receiving unit 11B of the communication management unit 11. and; A call assignment table 15 for storing an optimal breath assigned by the military management system 10 for the input call; A hall call allocating unit 16 for evaluating the driving state of each elevator 21A-21N to calculate a comprehensive evaluation value for the hall call, and allocating the hall call to the optimal unit based on the hall call; A traffic flow learning unit 17 which collects reality data for predicting future traffic flow in the military management system 10 and allocates the optimal unit to the traffic flow database 18; The data transmitted from the elevator control unit 22A-22N to the elevator 21A-21N or the military management system 10 or the data transmitted from the military management system 10 to the elevator control unit 22A-22N are summarized. It consists of an integrated device 23 for the landing data transmission, which is described below with reference to FIG.

First, check whether or not a hole call has occurred (SA1), if no hole call has occurred, return to the initial state, and a hole call has occurred, and a comprehensive evaluation value for each elevator is calculated (SA2), and based on the comprehensive evaluation value, The call is assigned to the hole call being processed to serve the hole call. Here, the occurrence condition of the hole call refers to a state in which the hole call is registered in the hole call registration table 14 and not registered in the hole call assignment table 15.

The call assignment technique described in the above process is collectively referred to as a function of immediate assignment, which refers to a service of notifying passengers by assigning a lift to be serviced immediately when a call occurs in the platform.

In the military management system, a lot of prediction operations are performed to allocate the elevators with the optimal evaluation value for the generated hall call. As a representative prediction example, the weight of the elevator when arriving at the floor where the call occurred and the boarding floor are called. The number of passengers to do, the estimated time of arrival until arrival at the caller, and the number of lift calls to be made when servicing the call.

However, many of these predictions are inconsistent with reality, that is, errors exist, which acts as a factor that degrades the performance of the military management system.

Assumption 1: Calling on 15th Floor

Assumption 2: Allocation 3 (21C) to the 12th floor

Assumption 3: The current position of elevator 3 (21C) is on the 5th floor, and the call assignment is on the 6th floor.

Assumption 4: Estimate the number of lift calls to occur when elevator 3 (21C) serves the sixth floor.

Assumption 5: Estimated time to ascend 3 (21C) to the 6th floor is estimated as 5 seconds

RESULTS: If six passengers were called from many passengers on the sixth floor, elevator 3 (21C) increased the number of service by elevator call compared to other elevators, so assigning another elevator to the call on the 12th floor It would have been desirable military control.

As shown in the above example, if the predictive information used in the military management system 10 is converted into reality information as much as possible, the performance of the military management system will be improved as much as converted. In other words, it can be seen that waiting for a long time as a result of performing immediate assignment despite the fact that the passengers wait until the time that does not feel boring, can collect the actual information instead of the predicted information and reduce the allocation error.

For example, as in Home 5, elevator 3 (21C) will arrive on the 6th floor after 5 seconds, so wait for 5 seconds rather than make an assignment immediately. If the evaluation was assigned an optimal breath, the problems presented above would not occur.

As such, in the conventional method of assigning military management system, in spite of being able to reduce the allocation error by collecting the actual information instead of the predicted information while waiting until the time when the passengers don't feel bored waiting. There was a flaw in the immediate allocation and waiting for a long time.

Accordingly, an object of the present invention is that a delay occurs when a call is made by a passenger on the hall side, and the delay condition is satisfied. The present invention provides a method for correcting an allocation error of an elevator group management system that allocates an optimal unit by calculating a comprehensive evaluation value for each elevator based on the collected driving information.

The allocation error correction method of the elevator group management system of the present invention for achieving the above object comprises a first step of checking whether there is a lift that satisfies the allocation delay condition when a call occurs; If the delay condition is established on the basis of the test result of the first step, the allocation of the hall call for a predetermined time is delayed, then the comprehensive evaluation value for each elevator is calculated to allocate the optimum elevator, and if the delay condition is not established, the delay time is not obtained. Including the second process.

The elevator group management system to which the allocation error correction method of the present invention is applied is generally similar to that of FIG. 1, except that an allocation delay monitoring table as shown in FIG. 3 for determining a waiting delay condition is maintained. Referring to Figures 3 to 6 attached to the operation and effects of the invention in detail as follows.

In the allocation delay monitoring table of FIG. 3, the table area TA1 stores the driving direction information of the floor and the elevator where the hall is called, and the table area TA2 allows the situation of the military management system 10 and the passengers to wait at the platform. The maximum delay time value in consideration of the psychological discomfort felt is stored, and the time elapsed after the registration of the hole call is stored in the table area TA3.

Referring to Figure 5 describes the overall hole call allocation process as follows.

First, in the first step SB1, it is determined whether there is a hole call that is registered in the hole call registration table 14 and there is no call call registered in the hole call table 15, and in the second step SB2, Stores the calling information generated in the allocation delay monitoring table shown in FIG.

That is, as described in the above description, the delay time of the table area TA3 is increased when the previously called hole call is registered by the previous process, and when the new registration is made, the layer and the direction information on which the hole call is generated are added. In the table area TA2, a time during which a call allocation delay can be set is set, and in the table area TA3, 0 is recorded to initialize the delay time.

Thereafter, the first step (SB3) is to check whether the condition that the call assignment is to be delayed is satisfied, which will be described in detail with reference to FIG. In the fourth step SB4, the delay check result performed in the third step SB3 is examined to determine whether the call allocation delay condition is satisfied, and as a result, the reality information is collected during the set delay time. To this end, the process proceeds to the fifth step SB5 to perform a delay operation for the set time, but if the condition is not satisfied, the process proceeds to the sixth step SB6.

In other words, the fact that the condition is not satisfied in the fourth step SB4 means that there is no elevator that satisfies the call allocation delay condition. Proceed.

In the sixth step SB6, a comprehensive evaluation value for each breath is calculated, and in the seventh step SB7, an elevator having an optimal comprehensive evaluation value is assigned to the hole call. As a result, when the delay condition is satisfied in the fourth step SB4, more real data is collected for a set time and used to calculate a comprehensive evaluation value for each elevator in the sixth step SB6, thereby reducing the probability of allocation error. .

In the allocation delay monitoring table of FIG. 3, the call allocation delay possible time is set according to the following equation.

T: Possible time for allocation delay

X: Waiting time for passengers to feel bored (about 40 seconds)

Y; Average waiting time of military management system Statistical extraction by performing existing call service

, : a constant

T = X * + Y *

For example, X = 40 seconds, Y = 25 seconds, = 0.2, When = 0.1, the allowable allocation delay time is T = 40 * 0.2 + 0.1 = 10.5 seconds.

On the other hand, the call allocation delay test method mentioned in the third step (SB3) of FIG. 5 will be described in more detail with reference to FIG.

First, in the first step SC1, by using the allocation delay monitoring table of FIG. 3, it is checked whether the delay time is greater than the delayable reference time, and when the condition is established, the process proceeds to the second step SC and the call allocation delay is not possible. Set, and deletes the calling in progress from the call allocation delay monitoring table. The reason for doing this is to prevent this because it can not delay the allocation of the call indefinitely and the time required for changing the elevator information can be longer than the expected delay time.

However, if the test result condition of the first step (SC1) is not satisfied, that is, if the delay time is smaller than the reference time, the process proceeds to the third step (SC3) to extract the direction and layer of the hole call being processed, and the fourth In step SC4, the elevator number is initialized and ready for the next process SC5-SC9.

Thereafter, in step 5 (SC5), all the elevators are checked whether the call allocation delay determination is performed, and if the conditions are established, they are terminated as they are. If not, the process proceeds to step 6 (SC6) to proceed with the currently selected elevator. If the direction and the calling direction are not the same, if it is not the same, the process proceeds to the ninth step (SC9). If the same is the case, the process proceeds to the seventh step (SC7) and the nearest layer service prediction arrival time is smaller than the delayable time of the calling. Check the paper. That is, the specific floor is serviced within a predetermined time period to check whether there is a possibility that the elevator information such as the weight of the elevator, the number of elevator calls, etc. may change.

If the test result condition of the seventh step (SC7) is not satisfied, the process proceeds to the ninth step (SC9) to increase the elevator number by 1 'to determine whether the call allocation delay for the next elevator. However, if the test result condition of the seventh step (SC7) is satisfied, it is set that the call allocation delay is possible for the elevator.

Referring to FIG. 6, the process of determining whether a call is delayed is described as follows.

Assumption 1: 12th Floor Upcall

Assumption 2: Calling delay can be delayed 10 seconds

Assumption 3: Five military administrative controls are being carried out as shown in FIG.

result :

Elevator 1: Failure to meet the call delay condition because the predicted arrival time is more than 10 seconds

Elevator 2: Unable to satisfy call delay condition because forecast arrival time is more than 10 seconds

Elevator 3: It does not satisfy the delay condition because the driving direction is opposite to the direction of calling

Elevator 4: The driving direction is opposite to the direction of the occurrence of the calling, so it does not satisfy the delay condition.

Elevator 5: satisfies the delay condition because the driving direction is the same and the predicted arrival time is 10 seconds or less.

As described in detail above, the present invention determines a predetermined delay condition when a hole call is generated. If the delay condition is not established, the present invention selects an optimal unit as it is and assigns it to the hole call. By collecting more actual information on the operation of the elevator in the delayed state and then selecting the optimal unit and assigning it to the hall call, it is possible to minimize the allocation error due to the military management prediction error, and ultimately the performance of the military management system. There is an effect to improve.

Claims (4)

In the group management control method of grouping a plurality of elevators to evaluate the operating state of each elevator when the hall call occurs and assigning the optimum elevator based on this, the delay time of call allocation can be set when the hall call occurs. A first step of checking whether there is a lift that satisfies the allocation delay condition; If the delay condition is established on the basis of the test result of the first step, the call assignment is delayed for the delayable time, the allocation of the optimal elevator is calculated by calculating the comprehensive evaluation value for each elevator, and if the delay condition is not established. And a second process of canceling the call allocation delay time. The method of claim 1, wherein the first process comprises maintaining a call assignment delay monitoring table for monitoring the assignment delay state of the call. 2. The method of claim 1, wherein the allocation delay condition of the first process is satisfied based on a predicted arrival time of the nearest service floor and a driving direction of the elevator. The method of claim 1, wherein the call allocation delay possible time of the first process is set based on the following equation. T = X * + Y * T: Possible time for allocation delay X: waiting time for passengers to start to feel bored Y; Average waiting time of military management system , : a constant