JP2021004133A - Elevator group management system - Google Patents

Abstract

To evaluate optimal allocation with respect to an up-down call and a destination call in a hybrid DCS to improve a group management performance.SOLUTION: An elevator group management system includes first converting means, operation prediction means, and allocation evaluating means. By the first converting means, an up-down call is added with information about a temporary destination floor to be converted into a destination call format. The operation prediction means predicts a waiting time and a riding time when the up-down call is allocated to each car and predicts a waiting time and a riding time when the destination call is allocated to each car. The allocation evaluating means calculates an evaluation value when the up-down call or the destination call is allocated to each car based on the waiting time and the riding time obtained by the operation prediction means, and evaluates it by changing a weighting coefficient with respect to the riding time depending on the up-down call and the destination call at that time.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to an elevator group management system.

In recent years, an elevator system equipped with a landing destination floor registration device (HDC: Hall Destination Controller) that can directly specify a destination floor at the landing has been put into practical use. Such an elevator system is called a "destination control system (DCS)". The DCS selects the most suitable car from a plurality of cars based on the call having the destination floor registered by the user at the landing (hereinafter referred to as "destination call") and causes the user to respond to the landing. .. In this case, the transportation efficiency is improved by having users on the same destination floor board the same car.

Here, there is a "hybrid DCS" having a floor having a landing for registering up and down calls, in addition to the floor having a landing for registering destination calls. In the hybrid DCS, a user who has registered a destination call and boarded the car can move to the destination floor without registering the car call in the car. In addition, a user who boarded from the floor where the up / down call is registered can register his / her destination floor as a car call in the car and move to the destination floor. In this hybrid DCS, the destination is "up and down call" which has the destination direction (up direction / down direction) of the user registered at the landing on any floor, and "car call" which has the destination floor registered in the car. Convert to nominal format and treat as full DCS. "Full DCS" is a DCS in which destination calls are registered on all floors.

Japanese Unexamined Patent Publication No. 2014-152032 Japanese Unexamined Patent Publication No. 2013-184816

In DCS, since the destination floor of the user is known in advance, the allocation evaluation is performed in consideration of the boarding time in addition to the waiting time. The waiting time is the time from when the destination call is registered at the landing until the car responds to the departure floor (call registration floor) of the destination call. The boarding time is the time from when the car responds to the departure floor to when it arrives at the user's destination floor. Waiting time + boarding time = service time.

Here, in the above-mentioned hybrid DCS, the destination floor of the destination call converted from the upper and lower calls is a predicted one, and is often a floor different from the actual destination floor. Therefore, if the allocation evaluation equivalent to the original destination call registered by the landing destination floor registration device (HDC) is performed, the group management performance may be deteriorated.

An object to be solved by the present invention is to provide a group management system for elevators capable of improving group management performance by performing optimum allocation evaluation for up / down calls and destination calls in a hybrid DCS.

The elevator group management system according to one embodiment includes a first registration device for registering up and down calls at the landing, and a second registration device for registering destination calls at the landing.

The elevator group management system includes a first conversion means, an operation prediction means, and an allocation evaluation means. The first conversion means adds temporary destination floor information to the upper and lower calls registered by the first registration device, and converts the information into the destination call format. The operation predicting means predicts the waiting time and the boarding time when the upper and lower calls converted by the first conversion means are assigned to each car, and when the destination call is assigned to each car. Predict the waiting time and boarding time. The allocation evaluation means calculates an evaluation value when the up / down call or the destination call is assigned to each of the above cars based on the waiting time and the boarding time obtained by the operation prediction means, and at that time, the above / down The weighting coefficient for the boarding time is changed between the call and the destination call for evaluation.

FIG. 1 is a block diagram showing a configuration of an elevator group management system according to an embodiment. FIG. 2 is a diagram showing an example of a landing destination floor registration device in the same embodiment. FIG. 3 is a diagram showing an example of a landing destination floor display device in the same embodiment. FIG. 4 is a diagram showing an example of operation prediction when a destination call is registered by the landing destination floor registration device in the same embodiment. FIG. 5 is a diagram showing an example of operation prediction when a vertical call is registered by the vertical call registration device in the same embodiment. FIG. 6 is a diagram showing an example of operation prediction when a car call in the same embodiment is registered. FIG. 7 is a flowchart showing the operation of the allocation evaluation process by the elevator group management system of the same embodiment. FIG. 8 is a flowchart showing the operation of the allocation evaluation process following FIG. 7. FIG. 9 is a diagram for making a provisional allocation in the same embodiment. FIG. 10 is a diagram for explaining a function of changing the weighting coefficient according to the operation mode (at the time of leaving work) in the same embodiment. FIG. 11 is a diagram for explaining a function of changing the weighting coefficient according to the operation mode (at lunch time) in the same embodiment. FIG. 12 is a diagram for explaining a function of changing the weighting coefficient when a glass-walled floor exists in the same embodiment. FIG. 13 is a diagram for explaining the feeling of the user on the floor where the landing destination floor registration device in the same embodiment is installed. FIG. 14 is a diagram for explaining the user's feeling on the floor where the vertical call registration device in the same embodiment is installed. FIG. 15 is a flowchart showing a process of changing the weighting coefficient according to the operation mode in the same embodiment. FIG. 16 is a diagram showing the relationship between the operation mode and the weighting coefficient in the same embodiment. FIG. 17 is a diagram for explaining switching of the operation mode in the same embodiment. FIG. 18 is a diagram showing the relationship between the correct answer rate of the derived car call and the weighting coefficient obtained by estimation for the upper and lower calls in the same embodiment. FIG. 19 is a diagram for explaining a method of totaling the correct answer rate of the above-mentioned derivative car call in the same embodiment. FIG. 20 is a diagram showing an example in which data of the same day of the week, the same time zone, and the same direction are extracted from the learning results in the same embodiment for the past one month. FIG. 21 is a flowchart showing the learning process of the weighting coefficient in the same embodiment.

Hereinafter, embodiments will be described with reference to the drawings. The disclosure is merely an example, and the invention is not limited by the contents described in the following embodiments. Modifications that can be easily conceived by those skilled in the art are naturally included in the scope of disclosure. In order to clarify the explanation, in the drawings, the size, shape, etc. of each part may be changed with respect to the actual embodiment and represented schematically. In a plurality of drawings, the corresponding elements may be given the same reference numbers and detailed description may be omitted.

FIG. 1 is a block diagram showing a configuration of an elevator group management system according to an embodiment, and shows a configuration in which a plurality of cars are group-managed. The number of cars is arbitrary, and at least two cars are sufficient. In the figure, 21a, 21b ... Are elevator control devices (also referred to as unit control device or car control device), and 22a, 22b ... Are car cars.

The elevator control devices 21a, 21b ... Are provided corresponding to the car 22a, 22b ... Of each unit. The elevator control device 21a controls the operation of the car 22a of Unit A. Specifically, the elevator control device 21a controls a motor (winding machine) (not shown) for raising and lowering the car 22a, controls opening and closing of the door, and the like. The same applies to the elevator control device 21b of Unit B. These elevator control devices 21a, 21b ... Are configured by a computer. The car 22a, 22b ... Move up and down in the hoistway by driving a motor (winding machine).

The car 22a, 22b ... Are provided with car call registration devices 23a, 23b ... For registering the car call, respectively. The "car call" is a call registered by operating the floor button provided on the car operation panel (not shown), and includes information on the user's destination floor and the car.

Here, the present embodiment assumes a hybrid DCS type elevator group management system. The hybrid DCS includes a vertical call registration device 11 used in a general group management system and a landing destination floor registration device (HDC) 12 used in the DCS system.

The vertical call registration device 11 and the landing destination floor registration device 12 are installed at the landing on different floors. The vertical call registration device 11 is a first registration device for registering a vertical call at a landing by operating a vertical button (not shown). The vertical call includes information on the departure floor (call registration floor) and the destination direction (up direction / down direction) of the user. The landing destination floor registration device 12 is a second registration device for registering a destination call at the landing. The destination call includes information on the departure floor (call registration floor) and the destination floor of the user.

As shown in FIG. 2, the landing destination floor registration device 12 uses an operation unit 12a for inputting the destination floor of the user and a car (allocated car) toward the destination floor input by the operation unit 12a. It has a display unit 12b for notifying the user. An "allocated car" is a car in which a call is registered, and is also called an "allocated machine". The input method for the destination floor is generally the operation of the numeric keypad, but for example, an IC card or the like may be used. Further, the landing destination floor registration device 12 may be installed at a place away from the landing.

In the example of FIG. 2, it is displayed that the destination floor entered by the user is the 13th floor, and the car 22a of Unit A is assigned to the destination floor. The user will wait at the platform of Unit A according to this display.

As shown in FIG. 3, a landing destination floor display device (HDI) 13 is installed in the vicinity of the landing door 15 at the landing 14 so that the user can smoothly board the assigned car. The landing destination floor display device 13 is a device for displaying the destination floor of the car for a predetermined time. The above-mentioned "predetermined time" is until the response to the destination floor of the car is completed on the installation floor of the landing destination floor display device 13. In the example of FIG. 3, the 7th, 11th, and 13th floors are displayed as the destination floors of Unit A. With such a display, the user can board after confirming the destination floor of the car.

In the example of FIG. 3, only the landing destination floor display device 13 of Unit A is shown, but in reality, the landing destination floor display device 13 is installed for each unit, and the car corresponding to each is installed. The destination floor of is displayed.

The group management control device 30 is a device that comprehensively controls the operation of the cars 22a, 22b ... The group management control device 30 is configured by a computer in the same manner as the elevator control devices 21a, 21b ... In the present embodiment, the group management control device 30 includes a first conversion unit 31, a second conversion unit 32, an operation prediction unit 33, a weighting coefficient storage unit 34, and an allocation evaluation unit 35 as components related to the hybrid DCS. , The allocation management unit 36, and the allocation output unit 37 are provided.

The first conversion unit 31 adds a temporary destination floor to the vertical call registered by the vertical call registration device 11 and converts it into a destination call format. The temporary destination floor inferred from the upper and lower calls is called a "derivative car call". The second conversion unit 32 adds the floor on which the registration operation is performed to the car call obtained from the elevator control devices 21a, 21b ... As the departure floor and converts it into the destination call format.

The operation prediction unit 33 transfers the destination call, the up / down call (up / down call after conversion to the destination call format), the car call (the car call after conversion to the destination call format), and the calls / allocations stored in the allocation management unit 36. It is used to predict the operation of the car 22a, 22b ..., And the waiting time and the boarding time are calculated from the prediction result.

The allocation evaluation unit 35 calculates an evaluation value when the call to be evaluated is assigned to each of the car 22a, 22b ... Based on the waiting time and the boarding time obtained as the prediction result from the operation prediction unit 33. Specifically, the allocation evaluation unit 35 calculates the evaluation value according to the evaluation formula shown in the following formula (1).

{(1.0-R) x Predicted waiting time + R x Predicted boarding time} ² …… (1)
"R" is a weighting coefficient that determines the ratio of the weight of waiting time and the weight of boarding time. Here, the weighting coefficient R is set with respect to the boarding time, and takes a value of 0 to 1. The weighting coefficient for the waiting time is represented by "1.0-R". The weighting coefficient R is set for each type of call (upper and lower call, destination call, gako call), and the value thereof is stored in the weighting coefficient storage unit 34.

The allocation evaluation unit 35 assigns the designation to the car with the highest evaluation among the cars 22a, 22b ... Based on the evaluation value obtained by the above equation (1). The smaller the evaluation value is, the higher the evaluation is. Therefore, the car with the lowest evaluation value is selected as the allocation car.

Every time a user's call is registered, the allocation management unit 36 holds the car to which the call is assigned (allocation car) until it arrives at the destination floor. The allocation output unit 37 outputs an allocation signal to the elevator control device corresponding to the allocation car in the elevator control devices 21a, 21b ..., And causes the allocation car to respond to the call departure floor. Further, the allocation output unit 37 sends the information of the allocation car to the landing destination floor registration device 12 and displays it on the display unit b of the landing destination floor registration device 12.

The learning unit 38 acquires the operation information of the car 22a, 22b ... via the elevator control devices 21a, 21b ..., and based on the operation information, the accuracy rate of the temporary destination floor added to the upper and lower calls (that is, that is). The probability that the car to which the vertical call is assigned matches the destination floor to which the car is actually headed) is learned.

Next, regarding various functions related to the hybrid DCS provided in the elevator group management system in the present embodiment, (a) a function of changing the weighting coefficient according to the call type, (b) a weighting coefficient according to the operation mode, etc. The change function and (c) weighting coefficient learning function will be described separately.

(A) Function for changing the weighting coefficient according to the call type As shown in FIG. 1, in this system, the floor where the vertical call registration device 11 is installed at the landing and the landing destination floor registration device 12 are installed at the landing. It is divided into floors. In the hybrid DCS, the control goal is to shorten the service time (waiting time + boarding time). The control that shortens the service time including the boarding time can transport more users by reducing the number of stops until the car makes one round of the hoistway than the control that shortens only the waiting time. It is especially effective when it is crowded.

Here, the predicted values of the waiting time and the boarding time will be described.
FIG. 4 shows an operation prediction when a destination call is registered by the landing destination floor registration device 12, and FIG. 5 shows an operation prediction when a vertical call is registered by the vertical call registration device 11.

As shown in FIG. 4, it is assumed that the car responds 10 seconds after the user registers the destination call on the 5th floor at the landing on the 3rd floor and arrives at the 5th floor 30 seconds later. The predicted value of the waiting time at this time is 10 seconds, and the predicted value of the boarding time is 20 seconds. Further, as shown in FIG. 5, it is assumed that the car responds 8 seconds after the user registers the upbound call at the landing on the 2nd floor and arrives at the 5th floor (temporary destination floor) 30 seconds later. .. The predicted value of the waiting time at this time is 8 seconds, and the predicted value of the boarding time is 22 seconds.

Here, regarding the "up / down call" registered by the up / down call registration device 11, the destination floor of the user who registered the call cannot be specified until the car responds to the departure floor. Therefore, the temporary destination floor is set as a "derivative car call" and prepared in a table that cannot be shown in association with the departure floor, departure direction, and the like. If such a derivative car call is prepared, it is possible to obtain the predicted values of the waiting time and the boarding time for the up and down calls as well as the destination call.

However, the predicted value of the boarding time obtained here is different from the predicted value of the boarding time for the true destination floor. For this reason, the evaluation of the upper and lower calls is lower than that of the destination call (according to the idea that the higher the uncertainty, the lower the evaluation). Therefore, when evaluating the vertical call, it is preferable to set the weighting coefficient for the boarding time lower than in the case of evaluating the destination call.

Specifically, the weighting coefficient R in the evaluation formula shown in the above equation (1) is set to a different value for the destination call and the vertical call as shown below.
Destination call: R = 0.4
Up and down call: R = 0.2
The weighting coefficient R for the boarding time of the destination call is larger than the weighting coefficient R for the boarding time of the vertical call. In other words, the weighting coefficient R for the boarding time of the vertical call is smaller than the weighting coefficient R for the boarding time of the destination call.

Further, as shown in FIG. 6, even if the car is called up and down, the car will go to the true destination floor by registering the car call after the user gets in the car. In other words, it is no longer a temporary destination floor. The example of FIG. 6 shows a case where a car call with the 4th floor as the destination floor is registered when the user gets on the car that responds to the 2nd floor by registering the vertical call.

Here, when performing allocation processing with the registration of a vertical call or a destination call, the registered car calls excluding those due to the destination floor of the destination call are the cars immediately before the car call is registered. Gets the data of the up and down call that responded to. When the time when the up / down call is registered is t1, the time when the car responds to the departure floor is t2, and the future time when the car is expected to respond to the destination floor of the newly registered car call is t3, this car call The estimated values of waiting time and boarding time are as follows.

Predicted value of waiting time for calling a car = t2-t1
Predicted boarding time for car call = t3-t2
That is, the predicted value of the waiting time for the car call is calculated as the waiting time for the vertical call that the car responded immediately before. The estimated boarding time of the car call is the scheduled time from the registration of the car call until the user gets off at the destination floor, or the user gets off at the destination floor after the car responds at the departure floor. It is calculated as the scheduled time until.

The predicted values of the waiting time and the boarding time are substituted into the evaluation formula shown in the above equation (1) to obtain the evaluation value. The weighting coefficient R used at this time is used separately from the values for the destination call and the vertical call. In this case, since the destination floor is fixed, it may be equal to the value of the weighting coefficient R with respect to the boarding time of the destination call (R = 0.4).

Further, since the car call is the correct destination floor, it is better to set the weighting coefficient R to a large value according to the destination call. On the other hand, for users who registered a car call, the waiting time was strongly evaluated at the stage before the response on the departure floor. If the evaluation method is changed significantly in the middle for the same user, the consistency of the evaluation will be reduced, the evaluation of the entire operation schedule will be changed significantly, and the situation so far will not be considered optimal. As a result, allocation changes (changing allocations to another car) are more likely to occur. In order to avoid such an excessive change, the change in the evaluation method may be kept small, and the weighting coefficient R may be conservatively set to 0.3 instead of 0.4, which is the same as the destination call.

By performing such processing, a function of giving preferential treatment to the boarding time is generated for the user who has waited for a long time at the landing. This is because the above evaluation formula is created so that the longer the waiting time, the larger the increase in the evaluation value with respect to the increase in the boarding time.

The operation of the allocation evaluation process will be described below.
7 and 8 are flowcharts showing the operation of the allocation evaluation process by the elevator group management system of the present embodiment. The overall processing flow is the same as that of the general allocation evaluation processing, except that the weighting coefficient is changed according to the call type in steps S11 to S15.

When either the destination call or the up / down call is registered, the group management control device 30 executes the following allocation evaluation process for each car (step S1). Here, the evaluation value of the car = the evaluation value with provisional allocation-the evaluation value without provisional allocation is obtained. Therefore, it is necessary to predict the operation separately for the case with provisional allocation and the case without provisional allocation, and obtain the evaluation value in each case.

FIG. 9 shows the situation.
For example, it is assumed that Units A, B, and C are candidates for allocation. When allocating a new call, there are three possible future assumptions: provisional allocation to Unit A, provisional allocation to Unit B, and provisional allocation to Unit C. In each case, the operation schedule changes only for the temporarily assigned unit. The change in the group management performance due to the change in the operation schedule can be considered as the difference between the service performance that can be considered when the provisional allocation is not made and the service performance that can be considered when the provisional allocation is made. Therefore, for each unit, "evaluation value by operation prediction according to existing call / allocation without provisional allocation" and "evaluation value by operation prediction with provisional allocation" are obtained and their evaluation values. The difference between the two can be used as the evaluation value of each unit.

In the initial state, the total value without provisional allocation = 0 and the total value with provisional allocation = 0 (step S2). The following processing is repeatedly executed separately for the case without provisional allocation and the case with provisional allocation (step S3).

That is, first, the operation prediction unit 33 of the group management control device 30 adds the currently registered calls (destination call / up / down call / car call) to the evaluation target of the operation prediction (step S4). At that time, if there is a provisional allocation (Yes in step S5), the operation prediction unit 33 also adds the call of the provisional allocation to the evaluation target of the operation prediction (step S6).

Here, if there is a vertical call among the calls to be evaluated, the first conversion unit 31 adds the destination floor of the derived car call to the vertical call to form a destination call format (step S7). At this time, information indicating that the call was originally up and down is left in the data of the call so that it can be identified later.

If there is a car call among the calls to be evaluated, the second conversion unit 32 adds the departure floor, registration time, and response time at the departure floor of the upper and lower calls that responded immediately to the car call. The destination call format is used (step S8). At this time, information indicating that the call was originally a car call is left in the data of the call so that it can be identified later.

The operation prediction unit 33 predicts the operation when the call to be evaluated is assigned to each of the car 22a, 22b ..., And calculates the predicted value of the waiting time and the boarding time from the prediction result (step S9). It should be noted that the process of step S9 does not predict the operation at once when the call to be evaluated is assigned to each of the car 22a, 22b ..., But for the car being processed as a loop from the above step S1. Predict one by one.

Specifically, the operation prediction unit 33 acquires the current operation information such as the current car position, the operation direction, the door state, and the traveling state from the elevator control devices 21a, 21b .... The operation prediction unit 33 simulates the movement when the call to be evaluated is sequentially assigned to the car to be processed in each car 22a, 22b ... From the operation information for each loop, as follows. And calculate the predicted values of waiting time and vehicle time.
Predicted waiting time = Predicted boarding time-Predicted time of occurrence Predicted value of boarding time = Predicted time of disembarkation-Predicted time of boarding In this way, when the call to be evaluated is assigned to each of the cars 22a, 22b ... When the predicted values of the waiting time and the boarding time are obtained, the allocation evaluation unit 35 executes the following processing for each call (step S10).

That is, the allocation evaluation unit 35 first determines the type of the call to be evaluated (steps S11 and S12), and switches the weighting coefficient R used in the allocation evaluation formula according to the type of the call (steps S13 to S15). ). Specifically, for example, the weighting coefficient R = "0.4" for the boarding time of the destination call and the weighting coefficient R = "0.2" for the boarding time of the vertical call are set, and the evaluation of the boarding time is lowered for the vertical call. deep. Further, the weighting coefficient R for the boarding time of the car call is set to a value (0.4) equivalent to that of the destination call or a slightly smaller value (0.3).

In this way, the allocation evaluation unit 35 obtains the evaluation value without provisional allocation and the evaluation value with provisional allocation while changing the weighting coefficient R according to the type of call (steps S16 to S21), and these evaluation values. The final evaluation value is obtained from (step S22).

When the final evaluation value is obtained for each of the car 22a, 22b ... (Step S23), the allocation evaluation unit 35 selects the car with the minimum evaluation value as the allocation car and the departure floor of the call. (Step S24).

In this way, by changing the weighting coefficient R according to the type of call, it is possible to obtain the evaluation value of the upper and lower calls by lowering the evaluation than the destination call because the destination floor is uncertain. You will be able to use it to select the most suitable allocation car. That is, even if a destination call or a vertical call is registered on each floor, the car with the shortest service time (waiting time + boarding time) can be appropriately selected and responded to the departure floor.

(B) Function to change the weighting coefficient according to the operation mode, etc. [Operation mode]
The "derivative car call", which is the estimated value of the destination floor of the user who registered the vertical call, may easily match the original destination floor depending on the operation mode of the elevator (commuting mode, leaving mode, etc.). It may not be.

For example, in an office building, there is a high possibility that a large number of users will go down from the floor above the entrance / exit floor of the building during the time of leaving work. Therefore, in the leave mode, as shown in FIG. 10, the entrance / exit floor of the building is set as a derivative car call for the call in the downward direction from the floor above the entrance / exit floor. This derivative car call corresponds to the DCS destination call because of its high degree of certainty. Therefore, when a call in the downward direction is registered in the time-out mode, the weighting coefficient R at that time may be set to a value equivalent to that of the destination call. For example, if R = 0.4 is set in the destination call, R = 0.4 may be set in contrast to the above-mentioned downward call. It should be noted that R = 0.1 may be set for up and down calls where the destination floor registered by the user after boarding is uncertain, such as in the up direction.

Also, during lunch time, there is a high possibility that users will get off at the cafeteria floor. Therefore, as shown in FIG. 11, in the lunch mode, the derivative car call is set on the dining room floor regardless of whether the call is in the up direction or the down direction. At that time, R = 0.4 may be set as in the case of calling the destination. In addition, it is difficult to estimate the destination floor for up and down calls that cannot go to the cafeteria floor even if you board. For such a vertical call, R = 0.1 may be set.

[Glass floor]
For example, as shown in FIG. 12, there is a building in which the doors on some floors are covered with glass so that the movement of the car can be visually recognized from the landing. In the example of FIG. 12, the 4th and 5th floors are glass floors. If such a floor exists, the user will notice when the car passes through and feel uncomfortable. Therefore, it is preferable to give priority to the waiting time rather than the boarding time to respond to the car. Therefore, for a call with a specific floor such as a glass floor as the departure floor, R = 0.0 is set regardless of the type of the call, and evaluation is performed using only the predicted value of the waiting time. ..

On the other hand, on the 1st to 3rd floors where the passage of the car cannot be confirmed from the landing, it is preferable to perform efficient operation with the highest priority given to the service time including the boarding time. Therefore, as described above, the value of the weighting coefficient R is switched according to the type of call. For example, if the call is in the downward direction, there is a high possibility of going to the departure reference floor, so R = 0.4, and if the call is in the upward direction, the destination floor is difficult to predict, so R = 0.1.

[User's feeling]
The user's feeling may differ between the "HDC installation floor" and the "up / down button installation floor". That is, as shown in FIG. 13, each user who boarded from the floor on which the landing destination floor registration device 12 is installed is presented with an assigned car. Therefore, they often wait in multiple cars, and even if they cannot get in the car that responded first, they feel unavoidable. This is because the control is such that even if you get on the car that responded later, you can pass many floors on the way and finally reach the destination floor quickly.

On the other hand, as shown in FIG. 14, on the floor where the vertical call registration device 11 is installed, it is assumed that a plurality of users heading in the same direction board the same allocation car. Therefore, it is easy to work with the desire to get in the car that responded quickly (to shorten the waiting time).

Therefore, for a destination call with the installation floor of the landing destination floor registration device 12 as the departure floor, the value of the weighting coefficient R is set to a value close to 0.5, and an index close to the service time is used as the allocation evaluation value. On the other hand, for the vertical call with the installation floor of the vertical call registration device 11 as the departure floor, the weighting coefficient R is set to a value close to 0.0, and an index close to the waiting time is used as the allocation evaluation value. As a result, it is possible to realize an allocation evaluation that is close to the user's feeling.

In addition, in the time zone when the number of users is extremely large, if the allocation evaluation close to the user's feeling is performed, there are many cases where the weighting coefficient R is set to be small, and the efficiency of the entire group management system is lowered. There is a possibility that it will end up. For this reason, it is preferable that the allocation evaluation that is close to the user's feeling is performed during a time period when there are few users (a time period that avoids commuting, lunch, and leaving work).

The allocation evaluation unit 35 shown in FIG. 1 corresponds to each call stored in the weighting coefficient storage unit 34, subject to the above-mentioned operation mode, a specific floor such as a glass wall, an HDC / up / down button installation floor, and the like. It is provided with a function of appropriately changing the weighting coefficient R. The group management control device 30 may be provided with a coefficient changing unit for changing the weighting coefficient R separately from the allocation evaluation unit 35.

The process of changing the weighting coefficient R by taking the operation mode as an example will be described below.
FIG. 15 is a flowchart showing a process of changing the weighting coefficient according to the operation mode. The process shown in this flowchart is executed instead of step 15 in FIG.

Now, as the operation modes that can be switched according to the time zone, it is assumed that the mode is the commuting mode, the leaving mode, the lunch mode, and the normal mode. It is assumed that the operation mode switching signal is input to the allocation evaluation unit 35 when the elevator page is in operation.

When the call to be processed is a vertical call, the allocation evaluation unit 35 confirms the current operation mode. As a result, in the commuting mode (Yes in step S51), the allocation evaluation unit 35 lowers the evaluation of the boarding time by setting the weighting coefficient R for the boarding time of the upper and lower calls to 0.1 (step S63).

Further, in the leave mode (Yes in step S52), the allocation evaluation unit 35 changes the value of the weighting coefficient R based on the relationship between the departure floor and the departure direction (destination direction) of the call. That is, as described with reference to FIG. 10, if there is a departure reference floor from the departure floor of the call toward the departure direction (Yes in step S56), the allocation evaluation unit 35 has a weighting coefficient R for the boarding time of the upper and lower calls. Is 0.4, and the boarding time is evaluated in the same manner as the destination call (step S62). On the other hand, if there is no departure reference floor from the departure floor of the call toward the departure direction (No in step S56), the allocation evaluation unit 35 lowers the weighting coefficient R for the boarding time of the upper and lower calls to 0.1 (No). Step S66).

The same applies to the lunch mode (Yes in step S53), and the allocation evaluation unit 35 changes the value of the weighting coefficient R based on the relationship between the departure floor and the departure direction of the call. In this case, as described with reference to FIG. 11, if there is a cafeteria floor from the departure floor of the call toward the departure direction (Yes in step S54), the allocation evaluation unit 35 has a weighting coefficient R for the boarding time of the up and down call. Is 0.4, and the boarding time is evaluated in the same manner as the destination call (step S68).

On the other hand, if there is no lunch floor from the departure floor of the call toward the departure direction (No in step S54), the allocation evaluation unit 35 lowers the weighting coefficient R for the boarding time of the upper and lower calls to 0.1 (step). S57).

Further, in the normal mode (No in step S53), the allocation evaluation unit 35 has the allocation evaluation unit 35 if there is a departure reference floor from the departure floor of the call toward the departure direction (Yes in step S55). Set the weighting coefficient R with respect to the boarding time of the vertical call to 0.3 (step S60). If there is no departure reference floor from the departure floor of the call to the departure direction (No in step S55), the allocation evaluation unit 35 sets the weighting coefficient R for the boarding time of the upper and lower calls to 0.1 (step S59). ).

In the example of FIG. 15, the weighting coefficient R related to the vertical call has been described, but the destination call and the car call are shown in FIG. Further, as shown in FIG. 17, the operation mode is switched depending on the day of the week and the time zone.

In this way, by appropriately changing the weighting coefficient R according to the time zone, the structure of the building, the service performance required by the user, etc., the optimum allocation car according to the situation at that time is selected and responded. Can be done.

(C) Learning function of weighting coefficient The learning unit 38 shown in FIG. 1 is registered after the derived car call (temporary destination floor) estimated for the vertical call is actually answered to the vertical call. It has a function to determine whether or not it was the same as the destination floor of the car call during the operation of the elevator. Upon receiving the learning result by the learning unit 38, the allocation evaluation unit 35 has a higher probability that the correct answer rate of the derived car call is higher, that is, the provisional destination floor added to the upper and lower calls matches the destination floor of the car call. The higher the value, the larger the weighting coefficient R with respect to the boarding time of the vertical call.

For example, as shown in FIG. 18, the weighting coefficient R is divided into "80% or more", "50% or more and less than 80%", "30% or more and less than 50%", and "less than 30%". Change to a stage. Further, R = correct answer rate × 0.5 may be set. However, the upper limit of the weighting coefficient R at that time is 0.4, and the lower limit is 0.1.

The correct answer rate of the derived car call is totaled in the format shown in FIG. 19, for example, and is held in the learning unit 38 as a learning result. In addition, a plurality of car calls may be registered in one response of up and down calls. In such a case, for example, if the destination floor of the derived car call is included in these car calls, the answer may be correct, and if it is not included, the answer may be incorrect.

When a new up / down call is registered, data for the same day of the week, the same time zone, and the same direction for the past month is extracted from the learning result. The example of FIG. 20 is an example of extracting data of the same day of the week, the same time zone, and the same direction in the past month when the upward call was registered at 08:15 on Thursday, May 23, 2019. Shown. From these data, the total number of responses = 138 and the total number of correct answers = 45, so the correct answer rate is 33%. Therefore, for the above-mentioned upward call, the allocation evaluation is performed with R = 0.2 set from FIG. When the number of responses is 0, a default value such as 30% may be used as the correct answer rate.

In the example of FIG. 20, the data of the same day of the week is aggregated for the past one month, but the data may be recorded or aggregated for different periods or types. For example, data on holidays may be removed and recorded / aggregated only on weekdays.

The learning process of the weighting coefficient R will be described below.
FIG. 21 is a flowchart showing a learning process of the weighting coefficient R. In addition to FIG. 8, the process shown in this flowchart is executed by the learning unit 38 each time a vertical call is registered during the operation of the elevator.

Now, it is assumed that the vertical call is registered through the vertical call registration device 11 installed on an arbitrary floor, and the assigned car responds to the departure floor (call registration floor) of the vertical call (Yes in step S101). When the car call is registered on the departure floor of the up / down call (Yes in step S102), the learning unit 38 tells that the destination floor of the car call is the destination floor of the derived car call estimated for the up / down call (Yes). It is determined whether or not it matches the provisional destination floor) (step S103). As a result, if both destination floors match (Yes in step S103), the learning unit 38 counts as a correct answer (step S105). Specifically, the learning unit 38 counts up the number of responses and the number of correct answers corresponding to the call shown in FIG. 19 by +1.

On the other hand, when the destination floors of both do not match and the response of the car call is completed, that is, when the assigned car finishes the response to the vertical call and the door is completely closed (Yes in step S104). The learning unit 38 counts as an incorrect answer (step S106). Specifically, the learning unit 38 counts up only the number of responses corresponding to the call shown in FIG. 19 by +1.

In this way, each time a vertical call is registered, the correct answer rate of the temporary destination floor added as a derivative car call to the vertical call is learned. As shown in FIG. 18, by reflecting this learning result in the weighting coefficient R for the boarding time of the vertical call and performing the allocation evaluation, the evaluation value for the vertical call and the destination call can be balanced. As a result, the accuracy of the allocation evaluation in the hybrid DCS is improved, and the group management ability can be further improved.

According to at least one embodiment described above, in the hybrid DCS, it is possible to provide an elevator group management system capable of performing optimum allocation evaluation for up / down calls and destination calls to improve group management performance. ..

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

11 ... Vertical call registration device, 12 ... Landing destination floor registration device (HDC), 13 ... Landing destination floor display device (HDI), 14 ... Landing, 15 ... Landing door, 21a, 21b ... Elevator control device, 22a, 22b ... Car, 23a, 23b ... Car call registration device, 30 ... Group management control device, 31 ... First conversion unit, 32 ... Second conversion unit, 33 ... Operation prediction unit, 34 ... Weighting coefficient storage unit, 35 ... Allocation evaluation unit, 36 ... Allocation management unit, 37 ... Allocation output unit, 38 ... Learning unit.

The learning unit 38 acquires the operation information of the car 22a, 22b ... via the elevator control devices 21a, 21b ..., and based on the operation information, the correct answer rate of the temporary destination floor added to the upper and lower calls (that is, that is). The probability that the car to which the vertical call is assigned matches the destination floor to which the car is actually headed) is learned.

Claims (8)

In an elevator group management system equipped with a first registration device for registering a vertical call at a landing and a second registration device for registering a destination call at a landing.
A first conversion means that adds temporary destination floor information to the vertical call registered by the first registration device and converts it into the destination call format.
The waiting time and boarding time when the upper and lower calls converted by the first conversion means are assigned to each car are predicted, and the waiting time and boarding time when the destination call is assigned to each car. Operation prediction means to predict
Based on the waiting time and boarding time obtained by this operation prediction means, the evaluation value when the above-mentioned vertical call or the above-mentioned destination call is assigned to each of the above-mentioned cars is calculated, and at that time, the above-mentioned vertical call and the above-mentioned destination call are calculated. A group management system for elevators, which is equipped with an allocation evaluation means for evaluating by changing the weighting coefficient for the boarding time. The group management system for elevators according to claim 1, wherein the weighting coefficient for the boarding time of the vertical call is smaller than the weighting coefficient for the boarding time of the destination call. A third registration device for registering a user's car call in the above car, and
A second conversion means for adding information on the departure floor of the car to the car call registered by the third registration device and converting it into the destination call format is provided.
The above operation prediction means
The waiting time for the car call converted by the second conversion means is calculated as the waiting time for the upper and lower calls that the car responded immediately before, and the boarding time for the car call is calculated after the car call is registered. The first aspect of claim 1, wherein the time is calculated as the scheduled time until the user gets off at the destination floor, or the scheduled time from when the above-mentioned car responds at the departure floor until the user gets off at the destination floor. Elevator group management system. The above allocation evaluation means
The car call is evaluated using a weighting coefficient different from that of the upper and lower calls and the destination call.
The group management system for elevators according to claim 3, wherein the weighting coefficient for the boarding time of the car call is set to be equal to or slightly smaller than the weighting coefficient for the boarding time of the destination call. The above allocation evaluation means
Claim 1 is characterized in that the weighting coefficient for the boarding time of the vertical call is increased when there is a high probability that the temporary destination floor added to the vertical call matches the destination floor specified by the operation mode of the elevator. Elevator group management system described. The above allocation evaluation means
The group management system for elevators according to claim 1, wherein when a specific floor is included as a departure floor in the vertical call or the destination call, the elevator group management system is switched to a weighting coefficient that prioritizes waiting time. Further equipped with a learning means for learning the accuracy rate of the temporary destination floor added to the above-mentioned vertical call,
The above allocation evaluation means
The group management system for elevators according to claim 1, wherein the weighting coefficient for the boarding time of the upper and lower calls is changed according to the accuracy rate learned by the learning means. The above allocation evaluation means
The group management system for elevators according to claim 7, wherein when the accuracy rate learned by the learning means is high, the weighting coefficient with respect to the boarding time of the vertical call is increased.

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