JP3993072B2 - Elevator group management control device and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a group management control apparatus that controls optimal operation of a plurality of elevators, and more particularly to an elevator group management control apparatus and method suitable for learning the flow of a person specific to a building and performing fine assignment control.
[0002]
[Prior art]
In the group management elevator, the waiting time of each floor is predicted, and allocation control of newly generated hall calls is performed. At this time, Patent Document 1 discloses that a car call that is derived based on an already allocated hall call and a new hall call to be allocated is predicted, and appropriate allocation is performed in consideration of this. .
[0003]
In addition, Patent Document 2 and the like have known that the number of passengers is obtained for each floor using a car weight change and a car call in order to detect the traffic volume of the elevator user and obtain data for prediction. Yes.
[0004]
[Patent Document 1]
JP-A-60-106774 (Claim 1 and others overall)
[Patent Document 2]
Japanese Patent Application Laid-Open No. 55-56963 (Claim 1 and others overall)
[0005]
[Problems to be solved by the invention]
In elevator group management control, it is important to know how often each elevator stops on each floor, and how long it stops if stopped. However, if the probability of stopping is calculated only by the already generated hall call and the car call derived therefrom, the stop related to the hall call that is generated until it passes from now on is not taken into account, and the elevator allocation control is distorted.
[0006]
Also, if you calculate the probability of stopping only by the number of people getting on and off by floor, the probability data that also includes the probability of stopping due to the car call generated by the passenger who got on the floor that passed is considered, so again The elevator allocation control will be confused.
[0007]
An object of the present invention is to provide an elevator group management control apparatus and method that accurately predicts the stop probability of an elevator and contributes to further service improvement.
[0008]
[Means for Solving the Problems]
The feature of the present invention is to predict the probability that a hall call will occur from now on and the probability of a stop due to this at a platform on a non-passing floor where no hall call or car call has occurred.
[0009]
As a result, the stop of the elevator is predicted in consideration of the hall call that will occur before the elevator passes, and the hall call is more appropriately allocated to the elevator, thereby further improving the service.
[0010]
Other features of the present invention are the probability of a stop due to a hall call being generated at a landing floor on a non-passing floor where no hall call or car call has occurred, and other floors derived from the hall call. It is to predict the probability of a car call.
[0011]
In order to achieve this, by learning the destination traffic by floor, not by floor, the passengers of the elevator can be stopped by the call that has not yet occurred from the position of the elevator and the hall call. Predict the probability of a derived car call.
[0012]
Specifically, (1) Hall call occurrence probability on each floor and stop probability data based on this are stored. Also, (2) traffic demand data for each floor indicating which floor a person who gets on each floor gets off is collected and stored as derived car call occurrence probability data.
[0013]
In the prediction, first, hall call stoppage probability data in a floor that has not passed hall calls is predicted using the hall call occurrence stop probability data of (1). (2) Next, the probability of a car call to another floor derived from the hall call stop probability predicted above is predicted.
[0014]
As a result, not only hall calls that will occur before the elevator passes, but also elevator calls are predicted in consideration of the car calls derived from them, and more appropriate hall calls are allocated to elevators. Realize.
[0015]
In addition, the elevator allocation control is realized under a more accurate prediction by excluding the probability of the car call from the passing floor.
[0016]
Unlike the hall call, the car call always stops when it is generated. Therefore, the car call occurrence probability and the car call stop probability are the same and need not be distinguished.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 is a system configuration diagram of an elevator group management control apparatus according to an embodiment of the present invention. This system is mainly composed of a group management control device 1 and number control devices 2A to 2C of a plurality of elevators A to C. The elevator cars 3A to 3C (only the Unit A is illustrated and described) are provided with a scale device 3A1 for measuring the load in the car 3A. The machine control device 2A inputs load measurement data from the scale device 3A1 through the transmission line 41, and grasps a load change accompanying passenger getting on and off at each floor. The group management control device 1 inputs load change data from each of the machine control devices 2A to 2C through the transmission line 42, and learns the number of people getting on and off between floors. The elevator car 3A is provided with a car call device (button) 3A2, and the signal is transmitted to the machine control device 2A through the transmission line 43. The information guide device 3A3 in the car 3A obtains information to be displayed or voice-guided here from the group management control device 1 through the transmission line 44.
[0019]
Hall call devices (buttons) 501 to 503 are provided in halls on each floor, for example, the first to third floors, and these signals are directly input to the group management control device 1 through the transmission line 45. Guide display information is transmitted from the group management control device 1 through the transmission line 44 to the hall information guide devices (display devices) 601 to 603 (only the information guide device 601 on the first floor 1F is illustrated). The hall lanterns 701 to 703 (only 701 shown) that clearly indicate the assigned elevator and its arrival obtain the lighting or blinking information from the machine control device 2A through the transmission line 41. However, as with the hall call devices 501 to 503, a signal input / output can be directly performed with the group management control device 1.
[0020]
The group management control device 1 takes the newly generated hall call into consideration, including the elevator position, direction, car call status, load status in the car, etc. sent from each of the machine control devices 2A to 2C by communication. Allocate one optimal elevator. This result is sent to the number control devices 2A to 2C as a reservation lamp signal or an allocation signal.
[0021]
FIG. 2 is a diagram illustrating an example of hall call occurrence probability obtained according to an embodiment of the present invention. This can be obtained simply from the number of hall calls generated on each floor in a desired time zone or period. According to the data shown in the figure, for example, an UP (upward) direction hall call is generated with a probability of 90% on the first floor for an elevator that has been lowered. Similarly, in the 5th floor DN (downward) direction, it can be seen that a hall call is generated with a probability of 20%. As described above, the hall call occurrence probability predicting means for predicting the occurrence probability of the hall call in the non-passing floor where the hall call and the car call are not generated is provided.
[0022]
FIG. 3 is a hall call stop probability coefficient diagram according to a change in the car position in one embodiment of the present invention. If the elevator is far away, the hall call occurrence probability shown in FIG. 2 can be directly applied as the stop probability. In this example, if the second floor interval is exceeded, the coefficient is 1.0, and the hall call occurrence probability in FIG. 2 is applied as the stop probability as it is. However, as the elevator approaches, the hall call occurrence probability itself decreases accordingly. In this example, when the distance between 0 and 2 floors is approached, the stop coefficient 0.3 in FIG. Is multiplied. In addition, since there is a high probability that the forward car will stop on the floor ahead of the preceding car (front car), the stop coefficient according to the car position is set to 0.1 here.
[0023]
Accordingly, the car stop probability for a hall call that has not yet occurred can be obtained by (hall call probability of the corresponding floor in FIG. 2) × (stop coefficient by car position in FIG. 3). In this way, hall call stop probability predicting means for predicting the probability of stop due to the allocation of the elevator based on the generation of hall calls in the unpassed floor where no hall call and car call have occurred is provided.
[0024]
FIG. 4 is a partial estimation diagram showing an example of the number of people getting on and off between floors. The horizontal axis shows the ride floor and the vertical axis shows the landing floor. For example, this means that there were 8 people who got in from the first floor and got off on the second floor. Similarly, it can be seen that 7 people get on the 7th floor from the 1st floor.
[0025]
This data is obtained by, for example, measuring and counting the number of people getting on and off at each floor over a predetermined period in the manner described in Patent Document 2 described above. Next, the passengers in each floor are judged from the clear part, and the unknown part is learned based on the probability based on the past data, and it is estimated which floor the person who got on each floor got off. To do. By such destination traffic volume learning means for each floor, estimated data of the number of people getting on and off by floor as shown in the figure can be obtained with high accuracy.
[0026]
FIG. 5 is a diagram in which the number of passengers getting on and off by floor in FIG. 4 is converted into the probability of occurrence of car calls by floor. For example, when a hall call is stopped on the first floor, the second floor is stopped by a car call with a probability of 18%, indicating that the passenger gets off. Then, get off at the probability shown on the 2nd to 8th floors. Therefore, the vertical sum in the figure is 1.0. Similarly, for example, when the third floor is stopped by a hall call, the sixth floor is 50% probability of stopping by a car call. Thus, this embodiment includes the following two means. That is, (1) Hall call stop probability predicting means for predicting the probability of stop due to the allocation of the elevator based on the generation of a hall call on a non-passing floor where a hall call and a car call are not generated. (2) A car call occurrence probability predicting means for predicting a car call occurrence probability to other unpassed floors derived based on the predicted hall call stop probability.
[0027]
FIG. 6 is an elevator operation state diagram for explaining one embodiment of the present invention. It is assumed that the elevator car 3A of Unit A has a door closed on the third floor and is immediately before leaving in the ascending direction. In the car 3A, a car call CY5 having a destination on the fifth floor is registered. In addition, at the 6th floor landing 6F, an UP (up) hall call HU6 is generated, and this call is assigned to Unit A. Furthermore, the DN (down) hall call HD8 at the 8th floor landing 8F is also assigned to Unit A. ing.
[0028]
Calculate or learn in advance the time required to move to the first floor (running time), stop time {(dead time due to deceleration acceleration, etc.) + (door open time)} required to calculate the estimated arrival time Create by. Here, for the sake of easy understanding, it is assumed that the first floor travel time is 5 seconds and the one-time stop time is uniformly 10 seconds for all floors.
[0029]
In this state, the estimated arrival time of the car 3A to the fourth floor is “first floor traveling time” “5 seconds”. In determining the estimated arrival time for the next 5th floor, in the present invention, the hall call at the 4th floor landing that has not yet occurred is generated, and the probability that the elevator of Unit A will be assigned and stopped will be considered. . As shown in FIG. 2, the probability of the fourth floor UP hall call is “0.3”, that is, 30%. Further, the hall call generation coefficient depending on the car position shown in FIG. 3 is 0.3 because it is the interval between 0 and 2 floors. Therefore, the estimated arrival time to the 5th floor is (estimated arrival time to the 4th floor) + (probability of the 4th floor non-occurring hall call) × (stop coefficient depending on the car position) × (1 stop time) + (4 Traveling time from floor to floor 5). The calculation results in “5 seconds + 0.3 × 0.3 × 10 seconds + 5 seconds = 10.9 seconds”.
[0030]
The estimated arrival time to the 6th floor is determined to be stopped by a car call on the 5th floor, so (estimated arrival time to the 5th floor) + (1 stop time) + (travel from the 5th floor to the 6th floor Time) is “10.9 seconds + 10 seconds + 5 seconds = 25.9 seconds”.
[0031]
The estimated arrival time to the 7th floor is decided to be stopped by the hall call on the 6th floor, so (estimated arrival time to the 6th floor) + (1 stoppage time) + (from the 6th floor to the 7th floor Traveling time) is “25.9 seconds + 10 seconds + 5 seconds = 40.9 seconds”.
[0032]
In obtaining the estimated arrival time of the eighth floor, in the present invention, the probability of stopping at the seventh floor that is not yet scheduled to stop is taken into consideration. That is, (1) the probability of stoppage to a hall call that may occur at the 7th floor platform, and (2) the probability of occurrence of a car call with the passenger on board the 4th floor hall call as the destination. Therefore, the estimated arrival time of the 8th floor is (estimated arrival time of the 7th floor) + {7th floor hall call stop probability + (4th floor hall call occurrence probability) × (same stop coefficient) × (seventh floor car call occurrence probability] ) + (5th floor hall call occurrence probability) x (same stop coefficient) x (seventh floor car call occurrence probability) + 7th floor car call probability from 6th floor} x (stop time) + (7-8th floor travel time) ). When calculated, “40.9 seconds + {0+ (0.3 × 0.3 × 0.25) + (0.1 × 0.3 × 0.4) +0} × 10 seconds + 5 seconds≈46.2 seconds "
[0033]
FIG. 7 is a diagram showing the predicted arrival time of each floor of the No. A elevator as a result of the above calculation. Assuming a case where three elevators A to C are installed in the building on the 8th floor, the 5th floor DN and later are highly likely to be served by the B and C machines, and the calculation is omitted. The arrival prediction times are similarly predicted for the B and C units.
[0034]
When a new hall call occurs in the assumed operating state, the waiting time of each floor is predicted and assigned using the estimated arrival time in Fig. 7 while taking into account the increase in waiting time based on the newly generated hall call. Control will be performed.
[0035]
This embodiment is summarized as follows. First, a plurality of elevators that service a plurality of floors, a hall call device installed at each floor landing of the elevator, and a car call device that registers a destination floor in each elevator car are provided. And the group management control apparatus which allocates the generated hall call to an appropriate elevator, and the number machine control apparatus which carries out operation control of each allocated elevator are provided. Furthermore, a group management control method that performs allocation control in consideration of the generation of car calls derived from the already allocated hall call and the allocation target hall call as well as the suspension due to the already allocated hall call, registered car call and allocation target hall call is assumed. Yes. Here, there is a step of predicting the hall call occurrence probability (FIG. 2) in the non-passing floors (4th floor UP, 7th floor UP,...) Where the hall call and the car call are not generated. Next, there is provided a step of predicting the probability of stop (FIG. 2 × FIG. 3) due to the assignment of the elevator based on the generation of the hall call. In addition, the method includes a step of predicting the probability of occurrence of a car call (FIG. 5) to other unpassed floors (7th floor UP,...) Derived based on the predicted stop probability, and predicting the arrival time to each floor. ing.
[0036]
According to this embodiment, not only a hall call that will be generated before the elevator passes, but also a car call derived therefrom is taken into account, thereby realizing a highly accurate arrival time prediction. Moreover, by assigning hall calls to appropriate elevators under a more accurate prediction by excluding the probability of car calls from passing floors, it contributes to improving the service of group management elevators.
[0037]
【The invention's effect】
According to the present invention, it is possible to realize elevator assignment control under a highly accurate prediction, and to contribute to group management performance and service improvement.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an elevator group management control apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing an example of hall call occurrence probability obtained by an embodiment of the present invention.
FIG. 3 is a diagram illustrating an example of a stop coefficient due to generation of a hall call obtained according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating an example of a totaling result of the number of people getting on and off between floors in an embodiment of the present invention.
FIG. 5 is a diagram showing an example of the probability of stoppage due to car calls according to floors calculated from the number of people getting on and off in FIG. 4;
FIG. 6 is a state diagram of elevator operation of a No. A elevator in a calculation example illustrating one embodiment of the present invention.
FIG. 7 is a diagram showing an example of a predicted arrival time calculation result in a calculation example illustrating an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Group management control apparatus, 2A-2C ... No. machine control apparatus, 3A ... No. A passenger car, 3A1 ... Weighing device, 3A2 ... Car call device (button), 3A3 ... Information guide device in car 3A, 41-45 ... Transmission line 501-503 ... Hall call device (button), 601 ... Hall information guide device (display device), 701 ... Hall lantern.

Claims (7)

Consider the elevators that serve multiple floors, the hall call device installed at each floor landing of the elevator, the car call device that registers the destination floor in each elevator car, and the hall call occurrence probability of each floor Elevator group management control that includes a group management control device that predicts the arrival time to the hall call generation floor and assigns the generated hall call to an appropriate elevator, and a machine control device that controls the operation of each assigned elevator. In the apparatus, the non-passing floor is obtained by multiplying the hall call occurrence probability in the non-passing floor where the hall call is not generated by a first stop coefficient that is larger as the distance between the non-passing floor and the current position of the elevator is longer. a stop probability prediction means for predicting the stop probability at, taking into account the predicted stop probability arrival of each elevator to the hall call occurrence floor To predict the time, generated elevator group management control apparatus characterized by comprising a hall call assignment means assigning a hall call to the appropriate elevator. Consider the elevators that serve multiple floors, the hall call device installed at each floor landing of the elevator, the car call device that registers the destination floor in each elevator car, and the hall call occurrence probability of each floor Elevator group management control that includes a group management control device that predicts the arrival time to the hall call generation floor and assigns the generated hall call to an appropriate elevator, and a machine control device that controls the operation of each assigned elevator. In the apparatus, the hall call occurrence probability in the non-passing floor where no hall call is generated is multiplied by the second stop coefficient that becomes smaller in the floor ahead of the elevator car preceding the elevator in question. a stop probability prediction means for predicting the stop probability, of each elevator to the hall call occurrence floor consideration of the predicted stop probability To predict the wear time, generated hall call elevator group management control device, wherein a with a hall call assignment means assigns the appropriate elevator.   Consider the elevators that serve multiple floors, the hall call device installed at each floor landing of the elevator, the car call device that registers the destination floor in each elevator car, and the hall call occurrence probability of each floor Elevator group management control that includes a group management control device that predicts the arrival time to the hall call generation floor and assigns the generated hall call to an appropriate elevator, and a unit control device that controls the operation of each assigned elevator. In the apparatus, in the hall call occurrence probability in the non-passing floor where the hall call is not generated, the first stop coefficient and / or the elevator which is larger as the distance between the non-passing floor and the current position of the elevator is longer. Probability of stopping at the unpassed floor by multiplying by the second stop coefficient that becomes smaller on the floor ahead of the preceding elevator car Predicted stop probability prediction means and hall call assignment means to predict the arrival time of each elevator to the hall call generation floor in consideration of the predicted stop probability and assign the generated hall call to an appropriate elevator Elevator group management control device.   Consider the elevators that serve multiple floors, the hall call device installed at each floor landing of the elevator, the car call device that registers the destination floor in each elevator car, and the hall call occurrence probability of each floor Predicting the arrival time to the hall call generation floor, equipped with a group management control device that assigns the generated hall call to an appropriate elevator, and a machine control device that controls the operation of each assigned elevator, the already assigned hall call, In an elevator group management control device that performs allocation control by predicting a stop due to a car call derived from an already assigned hall call and an allocation target hall call in addition to a stop due to a registered car call and an allocation target hall call, The probability of hall call occurrence on a non-passed floor that has not occurred is compared with the above-mentioned non-passed floor. The stop at the unpassed floor is multiplied by the first stop coefficient that increases as the distance between the current positions of the elevators increases and / or the second stop coefficient that decreases at the floor preceding the elevator car preceding the elevator. A stop probability predicting means for predicting the probability and a hall call assigning means for predicting the arrival time of each elevator to the floor where the hall call is generated in consideration of the predicted stop probability and assigning the generated hall call to an appropriate elevator. An elevator group management control device characterized by that.   The car call occurrence probability predicting means according to any one of claims 1 to 4, for predicting an occurrence probability of a car call to another non-passing floor derived from the hall call stop probability to the non-passing floor where no hall call has occurred. In consideration of the predicted car call occurrence probability, the arrival time of each elevator to the unpassed floor is predicted, and hall call assigning means for assigning the generated hall call to an appropriate elevator is provided. Group management control device. Consider the elevators that serve multiple floors, the hall call device installed at each floor landing of the elevator, the car call device that registers the destination floor in each elevator car, and the hall call occurrence probability of each floor Elevator group management control that includes a group management control device that predicts the arrival time to the hall call generation floor and assigns the generated hall call to an appropriate elevator, and a machine control device that controls the operation of each assigned elevator. This is a control method for equipment, and the steps to obtain the hall call occurrence probability in the non-passing floor where hall calls are not generated based on the hall call occurrence record in each past floor and the car call is not generated. the car call the probability of occurrence of the non-passed floor, a step of determining based on the track record of the past of the floor between the beds by the traffic demand, these hall call occurrence probability To the multiplied by a first stop coefficient distance is greater the farther between the current position of the non-passed floor and the elevator, and / or the car call probability, the probability of stopping by the allocation of the elevators based on the hall call generation A stop probability prediction step of multiplying to predict the stop probability at the unpassed floor, and predicting the arrival time of each elevator to the hall call generation floor in consideration of the predicted stop probability, and appropriately determining the generated hall call. An elevator group management control method including a hall call assignment step for assigning to an elevator. Consider the elevators that serve multiple floors, the hall call device installed at each floor landing of the elevator, the car call device that registers the destination floor in each elevator car, and the hall call occurrence probability of each floor Elevator group management control that includes a group management control device that predicts the arrival time to the hall call generation floor and assigns the generated hall call to an appropriate elevator, and a machine control device that controls the operation of each assigned elevator. The control method of the device, the probability of a stop due to the allocation of the elevator based on the hall call occurrence in the non-passing floor where the hall call and the car call are not generated, between the non-passing floor and the current position of the elevator The step of predicting the stop probability for predicting the stop probability at the unpassed floor by multiplying the first stop coefficient that is larger as the distance is longer. Flop and, on the car call probability of occurrence of the other non-passed floor derived based on the predicted stop probability, the multiplied by the probability of the stop by the allocation of the elevators based on the hall call generation other in non-passed floor An elevator group management control method comprising a step of predicting a stop probability.

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