JP2011051694A - Group management control device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a long wait state as soon as possible by alignment change, irrespective of the presence or absence of passengers. <P>SOLUTION: Upon detection of the long wait state by a long wait detection section 23, a hall call alignment machine changes alignments to the time required for arriving at a long wait occurrence floor, and to hall calls already recorded for other individual machines, thereby allowing an arrival time estimation section 22 to estimate an arrival time in response to the long wait occurrence floor. A relief machine selection section 24 retrieves machines whose arrival time is a certain period of time or more faster than an aligned machine, and selects a machine whose arrival time is the shortest among these, as a long wait relief machine. A relief operation section 25 executes relief operation by changing the alignment of hall calls recorded for floors in the distance up to the long wait occurrence floor, among hall calls already aligned to the relief machine, into other machine, and by changing the alignment to the hall call of the long wait occurrence floor into the relief machine. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator group management control apparatus that controls the elevators of a plurality of units in an integrated manner, and more particularly to an elevator group management control apparatus that performs a relief operation when a long wait occurs on a certain floor.

  In the group management system that controls the elevators of multiple units, hall calls on each floor are efficiently allocated to the elevators of each unit so as to average the waiting time of each floor and shorten the unanswered time.

  However, in actuality, the arrival may be delayed due to the registration of a new hall call or car call after the hall call is assigned, and so-called “long waiting” may occur. “Long wait” refers to a state in which a non-response time until a unit to which a hall call is assigned responds to the registration floor has exceeded a certain time (for example, 60 seconds).

  In the case where such a long wait occurs, for example, in Patent Document 1, a search is made for an empty machine in which no passenger is present, and this empty machine can reach the long wait occurrence floor before the assigned number. In such a case, it is disclosed that the hall call of the long waiting occurrence floor is reassigned and responded to the above-mentioned empty car.

JP 2006-1224075 A

  However, the method as described in Patent Document 1 has a problem that the long wait state cannot be solved because the allocation change is not performed if there is no empty unit in each unit when long wait occurs.

  That is, for example, there is a long wait for the hall call in the UP direction on the 7th floor, and at that time, Unit A, in which only one passenger is riding, is operating in the UP direction on the 2nd floor. Assume that the call and the hall call in the UP direction on the 4th and 5th floors have already been registered. In such a case, if you change the hall call in the UP direction on the 4th and 5th floors already registered in Unit A to another car, even if you can arrive on the 7th floor the fastest, Since it is on board, it is not subject to allocation change.

  In addition, as another problem, the above-mentioned Patent Document 1 does not consider the influence on the other hall call due to the allocation change, and therefore there is a possibility that a new long wait may occur on another floor when the allocation is changed. there were.

  This invention is made in view of such a situation, and it aims at providing the group management control apparatus of the elevator which can eliminate a long waiting state as soon as possible by allocation change irrespective of the presence or absence of a passenger. To do.

  The elevator group management control device according to the present invention is an elevator group management control device that collectively controls a plurality of elevators as one group. An allocation control means for allocating the hall call to the floor where the hall call is registered, and an unanswered time until the assigned machine to which the hall call is assigned by the allocation control means responds for a predetermined time or more. Long wait detection means for detecting the elapsed state as long wait, and when the long wait detection is detected by the long wait detection means, the time until the assigned unit arrives at the long wait occurrence floor, and other units An arrival time predicting means for predicting the arrival time when a hall call already registered is reassigned and responded to the above-mentioned long waiting occurrence floor, and this arrival time predictor Searching for a unit whose arrival time predicted by a certain time is earlier than the assigned unit by a certain time, and selecting a unit having the shortest arrival time as a long-awaited relief unit, and a relief unit selecting unit Among the hall calls already assigned to the relief unit selected by the above, the hall calls registered on the floor up to the floor where the long waiting occurred are reassigned to other units, and the The present invention is characterized by comprising relief operation means for changing the allocation of the hall call to the relief machine and executing relief operation.

  According to the present invention, when a hall call on a certain floor is waiting for a long time, regardless of the presence or absence of passengers, an appropriate unit is selected as a long-waiting relief unit, and the relief unit By changing the hall call assignment, the long wait state can be resolved as soon as possible.

FIG. 1 is a block diagram showing a configuration of an elevator group management control apparatus according to a first embodiment of the present invention. FIG. 2 is a diagram showing an example of the operating state of each car in the embodiment, and is a diagram showing a state before occurrence of long wait. FIG. 3 is a diagram illustrating an example of an operation state of each vehicle in the embodiment, and is a diagram illustrating a state after occurrence of a long wait. FIG. 4 is a flowchart showing the operation of the long waiting relief operation by the group management control unit in the same embodiment. FIG. 5 is a block diagram showing a configuration of an elevator group management control apparatus according to the second embodiment of the present invention. FIG. 6 is a flowchart showing the operation of the long waiting relief operation by the group management control unit in the same embodiment. FIG. 7 is a block diagram showing a configuration of an elevator group management control apparatus according to the third embodiment of the present invention. FIG. 8 is a diagram illustrating an example of a table of the waiting number prediction unit provided in the group management control unit in the same embodiment. FIG. 9 is a flowchart showing the operation of the long waiting relief operation by the group management control unit in the same embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing a configuration of an elevator group management control apparatus according to a first embodiment of the present invention.

  The elevator group management control device according to the present embodiment includes a group management control unit 11 that controls a plurality of elevators centrally, and a single control unit 12a that controls the operation of each elevator under the group management control unit 11. 12b, 12c... The group management control unit 11 and the single control units 12a, 12b, 12c,... Are each realized by a computer.

  Each elevator is also called a “unit” in the car unit. In the following, for the sake of simplicity of explanation, it is assumed that three elevators are assumed to be called A-unit, B-unit, and C-unit, respectively.

  The single control units 12a, 12b, and 12c perform control related to the operation of the cars 13a, 13b, and 13c of the No. A, No. B, and No. C machines. Specifically, door opening / closing control, car call registration control, and the like.

  The passenger car 13a is provided with a destination floor button 14a for a passenger in the car to register a desired destination floor and a load detector 15a for detecting a loaded load. The same applies to the other cars 13b and 13c, and destination floor buttons 14b and 14c and load detectors 15b and 15c are provided respectively.

  In addition, hall call buttons 16 for registering hall calls are installed in halls (elevator landings) on each floor. In the example of FIG. 1, only one hall call button 16 is shown, but in reality, it is installed in each hall on each floor.

  The “hall call” is a call signal transmitted by operating the hall call button 16, and the identification information of the floor where the call registration is made and the UP direction (upward direction) / DOWN direction (specified by the passenger) (Descent direction) destination information.

  On the other hand, the “car call” is a call signal transmitted by operating the destination floor button 14 in the car 13, and the identification information of the car registered for call and the destination specified by the passenger. Has floor information.

  On the other hand, the group management control unit 11 includes an allocation control unit 21, an arrival time prediction unit 22, a long waiting detection unit 23, a rescue number machine selection unit 24, and a rescue operation unit 25. These are realized by computer software.

  The assignment control unit 21 performs hall call assignment control for each unit. The arrival time prediction unit 22 calculates the time required for each unit to move from the current position to the hall call registration floor. The long wait detection unit 23 detects, as a long wait, a state in which a non-response time until a unit to which a hall call is assigned by the assignment control unit 21 responds to the registered floor has exceeded a predetermined time (for example, 60 seconds).

  When the long wait detection unit 23 detects a long wait, the rescue number selection unit 24 selects a long wait type rescue number from each number. The relief driving unit 25 performs a long waiting relief operation using the relief number selected by the relief number selecting unit 24.

  In such a configuration, when a hall call is registered by operating the hall call button 16 on a certain floor, the allocation control unit 21 in the group management control unit 11 evaluates when the hall call is assigned to each unit. Is calculated, and an allocation command is output to the machine having the best evaluation value. As the evaluation value, for example, the time required for each unit to arrive at the hall call registration floor, the full probability at the time of arrival at the hall call registration floor, or the like is used.

  The arrival time prediction unit 22 calculates the required time from the current position of each unit to the hall call registration floor. Specifically, while responding to a car call or hall call that has already been assigned to each unit, the time required to move between floors from the current location is the travel time required to move between floors, and stop at call response Calculate by taking time into account.

  The long wait detection unit 23 determines that it is in the long wait state when the unanswered time from when the hall call is registered until the assigned unit responds exceeds 60 seconds, and sends a long wait to the rescue unit selection unit 24. A wait detection signal is output.

  Upon receipt of the long wait detection signal from the long wait detection unit 23, the rescue machine selection unit 24 selects all of the units other than the hall call assigned units and selects the long wait rescue unit. Specifically, the rescue unit selection unit 24 reassigns the time until the assigned unit arrives at the long waiting occurrence floor and the hall call that has already been registered for each other unit, and responds to the above long waiting occurrence floor. Compared with the arrival time of the case, a search is made for a unit that can arrive earlier than the assigned unit by a certain time (for example, 20 seconds) and does not cause a new long wait due to the change of assignment. Select the unit that can reach the waiting floor as the rescue unit.

  The relief operation unit 25 assigns hall calls registered between the current position and the long waiting occurrence floor to other units among the hall calls already assigned to the relief unit selected by the relief unit selection unit 24. Change the allocation, change the allocation of the hall call on the long waiting floor to the rescue unit, and perform rescue operation. Further, the rescue operation unit 25 outputs a command for prohibiting the allocation of a new hall call that occurs on the middle floor to the allocation control unit 21 until the rescue machine responds to the long waiting floor. As a result, during the relief operation, the hall call to the relief machine can be restricted so that the long-waiting floor can respond quickly.

  Next, the operation of the first embodiment will be described in detail.

  2 and 3 are diagrams showing an example of an operating state of the A to C machines, FIG. 2 is a state before occurrence of long wait, and FIG. 3 is a view showing a state after occurrence of long wait. In the figure, black circles indicate car calls and black triangles indicate hall calls.

  Now, as shown in FIG. 2, when a hall call in the UP direction is registered on the 16th floor, it is assumed that an allocation command is issued to Unit A as the optimal unit at that time. Thereafter, as shown in FIG. 3, in the Unit A, a plurality of car calls are registered by passengers in the car, and a hall call in the 16th floor UP direction is detected as a long wait while responding to those car calls. Shall be.

  In addition, when a long wait for the hall call in the 16th floor UP direction is detected, Unit B is operating in the UP direction, and car calls to the 9th, 19th and 21st floors are registered by passengers in the car. Furthermore, it is assumed that hall calls in the UP direction on the 4th and 6th floors and hall calls in the DOWN direction on the 22nd floor are assigned. It is assumed that Unit C is driving in the DOWN direction, a car call to the fifth floor is registered by a passenger in the car, and a hall call in the first floor UP direction is assigned.

  FIG. 4 is a flowchart showing the operation of the long waiting relief operation by the group management control unit 11 in the first embodiment.

  When the unanswered time of the unit to which the hall call is assigned exceeds 60 seconds, it is detected as a long wait. When a long wait is detected, the group management control unit 11 first calculates a predicted arrival time T from the current position until the assigned machine of the hall call arrives at the long wait occurrence floor (step S101).

  In the example of FIG. 3, the hall call in the UP direction is detected as a long wait on the 16th floor. Assuming that the estimated arrival time of Unit A to which the hall call is assigned is T, for example, T = 45 seconds.

  The predicted arrival time T is obtained by adding the time required for movement of each floor, the stop time of each floor, the time required for reversal, and the like by the arrival time prediction unit 22. The same applies to the predicted arrival times Tb and Tc below.

  Next, the group management control unit 11 targets all the units other than the unit to which the long waiting hall call (hall call in the 16th floor UP direction) is assigned (YES in step S102), and these units are currently A predicted arrival time Tn (n is a machine ID) when moving without responding to a hall call registered in the middle floor between the position and the long waiting occurrence floor is calculated (step S103).

  In the example of FIG. 3, it does not respond to hall calls in the 4th and 6th floor UP direction until Unit B arrives on the 16th floor, but responds only to the 9th floor car calls. Therefore, if the predicted arrival time at this time is Tb, it is calculated as Tb = 24 seconds, for example.

  Next, the group management control unit 11 compares the predicted arrival time T of the Unit A with the predicted arrival time Tb of the Unit B, so that the Unit B is earlier than the Unit A by a preset time (here, 20 seconds). It is determined whether or not arrival is possible (step S104). In this case, T-Tb = 45-24 = 21, so that the B machine can arrive 20 seconds or more earlier than the A machine.

If it is possible to arrive 20 seconds or more earlier than Unit A (YES in Step S104), the group management control unit 11 will not generate a new long-waiting hall call when Unit B subsequently performs a long-waiting relief operation. (Step S105)
That is, in the example of FIG. 3, the hall call in the UP direction on the 4th and 6th floors assigned to the B car is changed to the other car. At that time, the predicted arrival time when the change-destination machine responds to each hall call including the hall call in the UP direction on the 4th and 6th floors is calculated, and it is checked whether or not a long-waiting hall call is generated.

  Here, when there is no hall call that is waiting for a long time (YES in step S105), the group management control unit 11 selects No. B as a candidate for a long-awaited rescue machine (step S106).

  In the example of FIG. 3, whether or not the B machine is the candidate for the rescue machine is checked in the same manner as the B machine. Unit C does not respond to the hall call in the 1st floor UP direction, but after responding to the car call to the 5th floor, it reverses and responds to the hall call in the 16th floor UP direction. Therefore, if the predicted arrival time for the hall call in the 16th floor UP direction of Unit C is Tc, Tc = 20 seconds, for example.

  If Tc = 20 seconds, the determination in step S104 is Yes, and it is determined in step S106 whether or not a long waiting hall call is newly generated when the hall call in the first floor UP direction is reassigned. . Here, for the hall call in the UP direction on the first floor, the optimum machine next to the C machine is, for example, the D machine (not shown). If Unit D is assigned to the hall call in the UP direction on the first floor, and if the time from the occurrence of the hall call in the UP direction on the first floor to the arrival of Unit D is 60 seconds or longer, Unit C is a candidate for a long-awaited rescue unit It will not be.

  As a result of the same determination for other units not shown, if the candidate unit is only unit B (YES in step S107), the group management control unit 11 finally selects unit B as the rescue unit ( Step S108). When there are a plurality of candidate cars, the group management control unit 11 selects a car having the shortest predicted arrival time Tn as a rescue car among these car candidates.

When the rescue machine is selected in this way, the group management control unit 11 moves the 4th and 6th floor UP directions of the floor until the B machine, which is the rescue machine, responds to the 16th floor UP direction hall call. The hall call is reassigned to a machine other than B, and the hall call in the 16th floor UP direction is reassigned from A to B (step S109).
Then, the group management control unit 11 sets the current position and 16 so that arrival at the 16th floor will not be delayed by a new hall call before the hall B responds to the 16th floor UP direction hall call. Allocation of new hall call (UP) between floors is restricted (step S110). Thereby, Unit B can respond to the hall call in the 16th floor UP direction that has been waiting for a long time without delay from the time predicted by the arrival time prediction unit 22.

  As described above, according to the first embodiment of the present invention, when a long wait occurs on a certain floor, it is possible to arrive at the long wait occurrence floor earlier by changing the allocation of hall calls. By selecting a unit that does not generate a long wait as a rescue unit, it is possible to resolve the long wait state as soon as possible by causing the appropriate unit to respond to the long wait occurrence floor regardless of the presence or absence of an empty unit.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

  In the first embodiment, a long call can be made on the condition that it is possible to arrive at the floor where the long wait occurred earlier than the corresponding unit by a change in the hall call assignment, and there is no new long wait due to the assignment change. A candidate for the waiting relief machine was selected. The second embodiment is further characterized in that a candidate for a long waiting rescue unit is selected on the condition that the predicted load at the time of response of the long waiting occurrence floor is a certain value or less.

  FIG. 5 is a block diagram showing a configuration of an elevator group management control apparatus according to the second embodiment of the present invention. In FIG. 5, the same parts as those in FIG. 1 in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the second embodiment, the group management control unit 11 includes a load prediction unit 26. The load predicting unit 26 predicts the load when the machine selected as the candidate for the long waiting relief car responds to the long waiting hall call. The rescue machine selection unit 24 performs the long wait rescue operation when the load at the long wait hall call response predicted by the load prediction unit 26 is equal to or less than a certain value (for example, 50% of the car rated load).

In such a configuration, the load predicting unit 26 provided in the group management control unit 11 predicts the current load and the load at the time of the long call hall call response from the hall call and the car call already registered in the relevant car. . Specifically, for example, when the load increasing at the hall call response is 130 kg and the load decreasing at the car call response is 65 kg,
(Predicted load at the time of long wait hall call response) = (Current load) + (Number of hall calls registered on the floor between the long wait hall call floors x 130)-(Up to the long wait hall call floor) Number of car calls registered on the floor between floors x 65)
It becomes.

  In this way, in Fig. 3, Unit B changes the hall call in the 4th and 6th floor UP direction to another unit, responds only to the car call to the 9th floor, and changes to the hall call in the 16th floor UP direction. When the predicted load when responding is calculated, it is as follows.

Assuming that the current load detected by the load detector 14b installed in the car 13b of Unit B is 260 kg, the predicted load at the 16th floor response is
260+ (0 × 130) − (1 × 65) = 195 [kg]
It becomes.

  Regarding the additional load and subtracted load per hall call and car call, different values may be set depending on the time zone such as when going to work and when it is off time, and the characteristics of each floor such as the entrance floor and general floor. Good.

  In addition, the number of passengers on the floor and the number of people getting off are recorded as learning data for each day of the week and time period, and the additional load at the hall call response and the subtraction load at the car call response are updated using this learning data. Thus, prediction with higher accuracy is possible.

  Next, the operation of the second embodiment will be described in detail.

  FIG. 6 is a flowchart showing the operation of the long waiting relief operation by the group management control unit 11 in the second embodiment. In FIG. 6, the processing from step S201 to S205 is the same as the processing from step S101 to S105 in FIG.

  That is, when the unanswered time of the unit to which the hall call is assigned exceeds 60 seconds, it is detected as a long wait. When the long wait is detected, the group management control unit 11 first calculates the time until the assigned machine of the hall call arrives at the long wait occurrence floor from the current position as the predicted arrival time T (step S201).

  Next, the group management control unit 11 targets all units other than the unit to which the long waiting hall call (16th floor UP direction hall call) is assigned (YES in step S202), and these units are currently A predicted arrival time Tn (n is a machine ID) when moving without responding to a hall call registered on the intermediate floor between the position and the long waiting occurrence floor is calculated (step S203).

  Then, the group management control unit 11 compares the predicted arrival time T of the assigned unit of the long waiting hall call with the predicted arrival time Tn of the other unit, and is earlier than the assigned unit by a certain time (here, 20 seconds). A machine that can arrive at the long wait occurrence floor and does not generate a new long wait is searched (steps S204 to S205).

  In the example of FIG. 3, when a hall call in the UP direction is detected as a long wait on the 16th floor assigned to Unit A, if the hall call is reassigned to Units B and C, a long wait occurs more than 20 seconds earlier. It is checked whether it is possible to arrive at the floor and no new long wait occurs.

  Here, assuming that Unit B satisfies the above-mentioned conditions (can be reached at a long waiting occurrence floor earlier than 20 seconds by allocation change and no new long waiting occurs), in the second embodiment, Furthermore, the load when Unit B responds to the 16th floor, which is the long waiting occurrence floor, is predicted, and it is determined whether or not the predicted load is 50% or less of the rated load (step S206). When the predicted load is 50% or less of the rated load (YES in step S206), the group management control unit 11 determines the B machine as a candidate for the rescue car (step S207).

  More specifically, for example, assuming that the predicted load when Unit B responds to a hall call in the 16th floor UP direction is 195 kg and the rated load is 850 kg, the predicted load at the time of response is 50% or less of the rated load. It becomes. Therefore, the load condition in step S206 is satisfied, and the B machine is determined as a candidate for the rescue machine.

  In step S206, the load condition is “50% or less of the rated load”, but it is not necessarily 50% or less of the rated load. For example, it is 60% or less or 70% or less of the rated load. Also good.

  In addition, when there is no unit that satisfies the load condition, among the units that satisfy the conditions of steps S204 and S205, the unit that has the smallest predicted load at the time of response may be a candidate for the rescue unit.

  As a result of the same determination for other units, if the candidate unit is only unit B (YES in step S208), the group management control unit 11 finally selects unit B as the rescue unit (step S209). ). When there are a plurality of candidate cars, the group management control unit 11 selects a car having the shortest predicted arrival time Tn as a rescue car among these car candidates.

When the rescue machine is selected in this way, as in the first embodiment, the group management control unit 11 waits until the rescue machine No. B responds to the hall call in the 16th floor UP direction. The hall call in the UP direction on the 4th and 6th floors is reassigned to units other than Unit B, and the hall call in the 16th floor UP direction is reassigned from Unit A to Unit B (step S210).
Then, the group management control unit 11 sets the current position and 16 so that arrival at the 16th floor will not be delayed by a new hall call before the hall B responds to the 16th floor UP direction hall call. Allocation of new hall call (UP) between floors is restricted (step S211). Thereby, Unit B can respond to the hall call in the 16th floor UP direction that has been waiting for a long time without delay from the time predicted by the arrival time prediction unit 22.

  As described above, according to the second embodiment of the present invention, when the long-waiting rescue machine responds to the long-waiting occurrence floor by adding the predicted load at the time of response as a candidate selection condition for the long-waiting rescue machine. In addition, it is possible to prevent a situation in which the car is full and the user cannot get on.

(Third embodiment)
Next, a third embodiment of the present invention will be described.

  The third embodiment is characterized in that a candidate for a rescue machine is selected by adding the number of people waiting in the long waiting occurrence floor at the time of response to the condition.

  FIG. 7 is a block diagram showing a configuration of an elevator group management control apparatus according to the third embodiment of the present invention. In FIG. 7, the same components as those in FIG. 1 in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the third embodiment, the group management control unit 11 is provided with a load prediction unit 26 and a waiting number prediction unit 27. The load predicting unit 26 is similar to the second embodiment, and predicts the load when the unit selected as the candidate for the long-waiting rescue unit responds to the long-waiting hall call. The waiting number predicting unit 27 predicts the waiting number when the long waiting relief machine responds to the long waiting occurrence floor.

  The rescue machine selection unit 24 determines the number of waiting people based on the load at the time of the long waiting hall call response predicted by the load prediction unit 26 and the waiting number at the long waiting occurrence floor predicted by the waiting number prediction unit 27. Select a car that can ride more than a certain number (for example, more than half).

  In such a configuration, the waiting number predicting unit 27 provided in the group management control unit 11 predicts the waiting number based on the elapsed time after the hall call is generated. Specifically, for example, as shown in FIG. 8, the estimated arrival time of the assigned unit is used by using a table 27 a storing relational data between the elapsed time after the hall call is generated in the hall on each floor and the number of waiting persons. Predict the number of people waiting according to

  In the example of FIG. 3, the predicted arrival time Tb for the hall call in the 16th floor UP direction of Unit B is 24 seconds. However, since this predicted arrival time Tb is the time when a long wait of 60 seconds is detected, the elapsed time from the occurrence of the hall call in the 16th floor UP direction until the arrival of Unit B is 84 seconds (60 seconds). +24 seconds). Therefore, the number of people waiting for the arrival of Unit B is estimated to be 12 from the table 27a in FIG.

  Next, the operation of the third embodiment will be described in detail.

  FIG. 9 is a flowchart showing the operation of the long waiting relief operation by the group management control unit 11 in the third embodiment. In FIG. 9, the processing from step S301 to S305 is the same as the processing from step S101 to S105 in FIG.

That is, when the unanswered time of the unit to which the hall call is assigned exceeds 60 seconds, it is detected as a long wait. When the long wait is detected, the group management control unit 11 first calculates the time until the assigned machine of the hall call arrives at the long wait occurrence floor from the current position as the predicted arrival time T (step S301).

  Next, the group management control unit 11 targets all units other than the unit to which the long waiting hall call (hall call in the 16th floor UP direction) is assigned (YES in step S302), and these units are currently The predicted arrival time Tn (n is the unit ID) when moving without responding to the hall call registered on the intermediate floor between the location and the long waiting occurrence floor is calculated (step S303).

  Then, the group management control unit 11 compares the predicted arrival time T of the assigned unit of the long waiting hall call with the predicted arrival time Tn of the other unit, and is earlier than the assigned unit by a certain time (here, 20 seconds). A machine that can arrive at the long wait occurrence floor and does not generate a new long wait is searched (steps S304 to S305).

  In the example of FIG. 3, when a hall call in the UP direction is detected as a long wait on the 16th floor assigned to Unit A, if the hall call is reassigned to Units B and C, a long wait occurs more than 20 seconds earlier. It is checked whether it is possible to arrive at the floor and no new long wait occurs.

  Here, assuming that Unit B satisfies the above-described conditions (can arrive at a long waiting occurrence floor more than 20 seconds earlier by allocation change and no new long waiting will occur), in the third embodiment, Furthermore, the waiting number when the B machine responds to the 16th floor, which is the long waiting occurrence floor, is predicted, and it is determined whether or not more than half of the predicted waiting number can be boarded (step S306). If more than half of the predicted number of passengers can be boarded (YES in step S306), the group management control unit 11 determines No. B as a candidate for a rescue No. (step S307).

  More specifically, for example, assuming that the predicted load when Unit B responds to a hall call in the 16th floor UP direction is 195 kg and the rated load is 850 kg, there is a margin of 655 kg (850 kg-195 kg). Further, the number of waiting people when Unit B arrives is predicted to be 12 from the table 27a of FIG.

  Normally, the weight per passenger is calculated as 65 kg, so that 10 out of 12 people waiting to be predicted can be loaded when Unit B responds to the 16th floor UP direction hall call. Therefore, the determination criterion of step S306 is satisfied, and it is determined as a rescue machine candidate.

  In step S306, the waiting number condition is set to “half or more of the predicted waiting number”, but it is not necessarily required to be more than half of the predicted waiting number, for example, 1/3 or more or 1/4 or more of the predicted waiting number. It may be.

  In addition, when there is no unit that satisfies the above waiting number, among the units satisfying the above-mentioned steps S304 and S305, the unit with the largest number of passengers that can be boarded is selected as a candidate for the rescue unit. good.

  In addition, for the prediction of the number of waiting persons, different tables 27a can be set according to the time zone such as when going to work or when there is no time, and the elevator usage status of each floor such as the entrance floor and the general floor. Furthermore, by recording the non-response time and the number of people who have boarded the train until the past assigned machine arrives as learning data for each floor, day of the week, and time zone, and updating the table 27a using this learning data, More accurate prediction is possible.

  As another prediction method, for example, a camera may be installed in a hall on each floor, and the waiting number may be predicted from the video of the camera.

  As a result of the same determination for other units, if the candidate unit is only unit B (YES in step S308), the group management control unit 11 finally selects unit B as the rescue unit (step S309). ). When there are a plurality of candidate cars, the group management control unit 11 selects a car having the shortest predicted arrival time Tn as a rescue car among these car candidates.

When the rescue machine is selected in this way, as in the first embodiment, the group management control unit 11 waits until the rescue machine No. B responds to the hall call in the 16th floor UP direction. 4th and 6th floor UP direction hall calls on the other floor are reassigned to units other than Unit B, and the 16th floor UP direction hall call is reassigned from Unit A to Unit B (step S310).
Then, the group management control unit 11 sets the current position and 16 so that arrival at the 16th floor will not be delayed by a new hall call before the hall B responds to the 16th floor UP direction hall call. Allocation of new hall call (UP) between floors is restricted (step S311). Thereby, Unit B can respond to the hall call in the 16th floor UP direction that has been waiting for a long time without delay from the time predicted by the arrival time prediction unit 22.

  As described above, according to the third embodiment of the present invention, the number of people waiting on the long waiting occurrence floor is predicted, and the number of users according to the number of people waiting is made to respond as a rescue number, so that the user waiting there can be as much as possible. You can ride a lot. In this case, everyone may not be able to get on the rescue unit, but at least the user who has been waiting on the floor for a long time can get on. It becomes.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 11 ... Group management control part, 12a, 12b, 12c ... Single control part, 13a, 13b, 13c ... Car, 14a, 14b, 14c ... Destination floor button, 15a, 15b, 15c ... Load detector, 16 ... Hall call Button, 21 ... Allocation control unit, 22 ... Arrival time prediction unit, 23 ... Long wait detection unit, 24 ... Relief machine selection unit, 25 ... Relief operation unit, 26 ... Load prediction unit, 27 ... Waiting number prediction unit, 27a ... table.

Claims (8)

In the elevator group management control device that controls the elevators of multiple units as a group,
Allocation control means for allocating the hall call to the optimal unit among the units according to the registration of the hall call and responding to the floor where the hall call is registered,
A long wait detection means for detecting a state in which a non-response time has elapsed for a predetermined time or more until the assigned machine to which the hall call is assigned by the assignment control means, as a long wait;
When the long wait is detected by this long wait detection means, the time until the assigned unit arrives at the floor where the long wait occurred and the hall call already registered for each other unit are reassigned to change the long wait. An arrival time prediction means for predicting the arrival time when responding to the generation floor;
Retrieval machine selection means for searching for a machine whose arrival time predicted by this arrival time prediction means is a fixed time or more earlier than the assigned machine, and selecting the machine having the shortest arrival time as a long-awaited rescue machine,
Among the hall calls already assigned to the relief machine selected by this relief machine selection means, the hall call registered on the floor between the floor where the long waiting occurred is changed to another machine, and the above A group operation control device for an elevator, comprising: relief operation means for executing a relief operation by changing the allocation of a hall call on a long waiting occurrence floor to the relief machine.   2. The elevator group management control device according to claim 1, wherein the rescue unit selection means searches for a rescue unit candidate on condition that a new long wait does not occur due to the allocation change.   2. The group of elevators according to claim 1, wherein said allocation control means prohibits allocation of a new hall call that occurs on an intermediate floor until said relief machine responds to said long waiting generation floor. Management control unit. A load prediction means for predicting the load when each of the above machines responds to the long waiting occurrence floor,
The rescue machine selecting means searches for an elevator whose arrival time predicted by the arrival time predicting means is a predetermined time or more earlier than the assigned car and whose load predicted by the load predicting means is a predetermined value or less, 2. The elevator group management control device according to claim 1, wherein the unit having the shortest arrival time is selected as the long-awaited rescue unit.   5. The elevator according to claim 4, wherein said rescue machine selecting means searches for a car having the smallest load among the cars having a load predicted by said load predicting means not having a predetermined value or less. Group management control device. Waiting number prediction means for predicting the waiting number when each unit responds to the long waiting occurrence floor,
The rescue machine selecting means can get on the arrival time predicted by the arrival time predicting means more than a predetermined time than the assigned car and can ride more than a certain number of waiting persons predicted by the waiting person predicting means. 2. The elevator group management control device according to claim 1, wherein the elevator is searched, and the elevator having the shortest arrival time is selected as the long-awaited relief machine.   The rescue number selecting means searches for the number of passengers having the largest number of passengers that can be boarded when there is no number of vehicles that can board a certain number of waiters predicted by the waiting number prediction means. The elevator group management control device according to claim 6. There is a table that stores the relationship data between the number of people waiting and the time elapsed since the hall call occurred in the hall on each floor,
The elevator group management control device according to claim 6, wherein the waiting number predicting means predicts the waiting number when each of the units responds to the long waiting occurrence floor with reference to the table.

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