JP2001058764A - Group supervisory control system for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance transportation efficiency and to reduce generation of full and long waiting by predicting an operation state of each car and determining a car to be assigned for a new call from cars satisfying both of call number limiting candidate cars and long waiting and full passengers limiting candidate cars. SOLUTION: When assigning an optimum car for every new call in elevators, each car arrival predictive time to each floor, predictive waiting time for each un-responded call and predictive load and a full passengers probability within the car on each floor are calculated for a case where each car is assigned to the new call and a case where each car is not assigned to the new call by a predictive calculation means 1C. The number of un-responded calls is calculated by an un-responded call number detection means 1D and a car having an un-responded call number of a call number limiting value or below is selected as a call number limiting candidate car. Long waiting full passengers limiting candidate cars are selected by a long waiting limiting means 1E. A car to be assigned for a new call is determined among cars satisfying both of the call number limiting candidate cars and the long waiting full passengers limiting candidate cars.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator group management control system for managing and controlling a plurality of elevators as a group, and more particularly to a group which enables efficient transportation during up-peak and down-peak. It relates to a management control system.

[0002]

2. Description of the Related Art In a large office building or the like,
At the time of commuting or leaving work, the occupants of the building move intensively, so that the elevator is crowded. In general, when going to work, the upward movement from the main floor (usually the first floor) becomes a peak, and when leaving the office, the movement from the middle floor to the main floor concentrates, causing a down peak. For this reason, conventional elevator management systems have been designed to efficiently transport passengers by performing special control operations different from those during normal operation, such as calling back to a congested floor and waiting for doors to open, when such congestion occurs. It is planned.

For example, Japanese Patent Application Laid-Open No. 63-218484 discloses a destination floor call registration device for registering a destination floor on a main floor and a display for displaying a service floor of a car in order to alleviate congestion during an up-peak period. Equipment, guide passengers on the same destination floor to the same car, set the maximum value of the destination floor assigned to each car to the number of service floors / cars, and within the range of this maximum value, There has been proposed an allocating device for sequentially allocating destination floors according to car priorities.

[0004] For example, at the time of down peak, Japanese Patent Application Laid-Open No. HEI 9-194151 discloses that at the time of down peak, the number of hall calls assigned to each car is detected and the number of hall calls assigned is reduced. An apparatus is disclosed in which a car having a value equal to or greater than a prescribed value is assigned to an assigned car, an estimated arrival time is calculated and evaluated for cars other than the assigned car, and a car which is likely to arrive first is selected.

Further, as another conventional device, Japanese Patent Publication No.
No. 24711 discloses that the number of hall calls (stop floors for passengers) assigned to each car at the time of down peak is limited, and the upper limit of the number of hall calls is changed according to the boarding rate. Discloses an apparatus for improving the transport efficiency.

[0006]

However, the above-mentioned conventional elevator group management systems have the following problems, respectively. That is,
In the device disclosed in JP-A-63-218484, the maximum value of the destination floor assigned to each car is fixed to the number of service floors / the number of cars.
Even if traffic conditions (elevation user congestion status) are reduced, it is not possible to allocate a destination floor that exceeds the above-mentioned maximum value to each car. As a result, optimal control that follows fluctuations in congestion status cannot be performed. Operational efficiency sometimes decreased.

Further, in the apparatus disclosed in Japanese Patent Application Laid-Open No. 9-194151, a predicted arrival time is calculated / evaluated for a car other than an assigned car, and a car which is likely to arrive first is selected. However, since the evaluation value when selecting a car is only the estimated time until it arrives at the landing, there is a problem in that the selected car will pass full and the passengers on the lower floor will not be able to receive service. Was.

In the apparatus disclosed in Japanese Patent Publication No. 1-24711, the transport capacity is improved by changing the limit value of the number of hall calls that can be allocated to each car based on the average number of passengers. However, since the stop floor is mechanically assigned to each car in the order in which the hall calls are generated, the randomness of the traffic flow of the user is strong, and the order in which the floor calls occur on each floor In the case of a non-regular elevator, for example, after a car has already responded to calls up to the hall call limit,
Even if a new call is generated nearby, the call cannot be answered, and the transportation efficiency is rather reduced.

[0009] Further, in the above conventional devices,
The system is configured to respond to only one of the up-peak time and the down-peak time.To cope with both the up-peak time and the down-peak time, it is necessary to combine these controls. However, there has been a problem that the cost is complicated and cost reduction is difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional apparatus, and a first object of the present invention is to provide an operation system with higher transportation efficiency during up-peak and down-peak. It is an object of the present invention to provide an elevator group management control system that can perform control and has less occurrence of crowding and long waiting due to congestion.

A second object of the present invention is to provide an elevator group management control capable of flexibly and quickly responding to changes in the traffic flow and congestion degree of an elevator user in a building and capable of operating control with high transportation efficiency. The purpose is to provide a system.

A third object of the present invention is to provide an elevator group management control system capable of simplifying the system by making processing as common as possible during up-peak, down-peak or normal operation. The purpose is to do.

[0013]

In order to achieve the above object, an elevator group management control system according to the present invention provides an elevator group management control system for controlling a plurality of cars as a group. Limit value setting means for setting the limit number of calls to be assigned, the long wait limit value, and the full capacity limit value, and detecting the number of unanswered calls assigned to each car when a new call is registered. A call number candidate car selecting means for selecting a call number limit candidate car in which the number of unanswered calls is equal to or less than the call number limit value set by the limit value setting means, and predicting the operation status of each car, A long waiting packed candidate car selecting means for selecting a long waiting packed limit candidate car which satisfies the long waiting limit value and the packed limit value set by the limit value setting means; From the basket that satisfies both of the serial length waiting packed limit candidate car, in which a allocated car determining means for determining a car to assign the new call.

Further, in the elevator group management control system according to the present invention, the number-of-calls candidate car selecting means determines a number-of-calls candidate car based on the total number of hall calls and destination calls assigned to each car. It is to be selected.

In the elevator group management control system according to the present invention, the call number candidate car selecting means selects a call number limit candidate car based on the number of DOWN calls assigned to each car. is there.

Furthermore, the elevator group management control system according to the present invention uses different formulas for calculating the number of unanswered calls at the time of up-peak and at the time of down-peak.

In the elevator group management control system according to the present invention, the assigned car determining means determines the car to which the new call is to be assigned based on the evaluation value calculated by the evaluation value calculating means. is there.

Further, in the elevator group management control system according to the present invention, when there is no car that satisfies both the call number limit candidate and the long waiting capacity limit candidate car, the limit value setting means sets the elevator number limit candidate. A limiting condition relaxing means for correcting at least one of the call number limit value, the long wait limit value and the full load limit value.

Further, the elevator group management control system according to the present invention further comprises a traffic flow discriminating means for discriminating a traffic flow in the building, wherein the limit value setting means comprises a call number limit value, a long wait limit value or a full capacity. At least one of the limit values is set based on the result of the discrimination by the traffic flow discriminating means.

Further, the elevator group management control system according to the present invention separates a car that responds to a destination call from the main floor and a car that responds to a hall call from the intermediate floor, and provides an intermediate floor call candidate car. Call allocation means for selecting the car, the allocation car determination means is configured to determine the car to which the new call is to be allocated from among the cars satisfying both the intermediate floor call candidate car and the long waiting capacity restriction candidate car. Things.

Further, the elevator group management control system according to the present invention provides a system for responding to an UP call,
A call separating means for separating a car responding to the N call and selecting an UP call candidate car is provided, and the assigned car deciding means is a car satisfying both the UP call candidate car and the long waiting capacity restriction candidate car. Thus, the car to which the new call is assigned is determined.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a block diagram showing an overall configuration of an elevator group management control system according to Embodiment 1 of the present invention. FIG. 2 is a destination call registration installed at a landing constituting this group management control system. It is a block diagram of a service number display device.

In FIG. 1, reference numeral 1 denotes a group management control device for efficiently managing and controlling the operation of a plurality of cars, and 2 denotes an operation of each car while being collectively managed by the group management control device 1. Each unit control device, 3 is the main floor (hereinafter, referred to as
The main floor is assumed to be on the 1st floor). A destination call registration which is installed at each car landing and registers a hall call from the main floor (call for boarding) and a destination call (setting of floor to get off).
Service No. display device 4 is installed at the platform of each car on the middle floor, and UP / DO for registering the platform call and destination direction
As shown in FIG. 2, the destination call registration / service number display device 3 is a WN button type landing call button. The destination floor button 3A for the passenger to register the destination and the assigned number to the registered destination floor ( FIG. 2 shows an example in which the car A is assigned to the second floor, the car B is assigned to the fourth floor, and the car C is assigned to the seventh floor. .

In the following, a case where the destination call registration / service number display device 3 is installed only on the main floor will be described. However, it may be installed on a congested floor in addition to the main floor. And can be installed on all floors. Also,
FIG. 1 shows an example in which the destination call registration / service number display device 3 is installed for each car, but one destination call registration / service
The service number display device 3 may be configured to be shared by a plurality of cars.

Hereinafter, the configuration of the group management control device 1 according to the first embodiment will be described in detail with reference to FIG. In FIG. 1, 1A is a call number limit value assigned to each car,
Limit value setting means for setting various limit values such as a long wait limit value, a full capacity limit value, etc., 1B is a communication means for communicating with each unit control device 2, 1C is a predicted arrival time of each car to each floor and each floor. Prediction calculation means for performing various prediction calculations based on the operation status of the elevator, such as the predicted load (ride rate) in the car, and 1D detects the total number of unanswered hall calls and destination calls assigned to each car. The number-of-calls detecting means 1E is a number-of-calls limiting means for selecting a number-of-calls limit candidate car for a new call based on the number-of-calls limit value set by the limit value setting means 1A and the detection result of the number-of-unanswered calls number detecting means 1D. Reference numeral 1F designates a long waiting full capacity car for selecting a long waiting full capacity candidate car for a new call based on the long waiting limit value and the full capacity limit value set by the limit value setting means 1A and the prediction calculation result of the prediction calculation means 1C. 1G is a candidate car selecting means for selecting a candidate car to be assigned to a final new call from the selection result of the long waiting capacity limiting means 1F and the call number limiting means 1E, and 1H is a limit set by the limit value setting means 1A. Limit condition relaxing means for relaxing the limit value when there is no allocation candidate car satisfying the value, 1J calculates various evaluation items such as waiting time evaluation from the predicted arrival time and the predicted load in the car predicted by the prediction calculating means 1C. Value calculation means 1K determines an optimal assignment car for a new call from the assignment candidate car selected by the candidate car selection means 1G and the calculation result by the evaluation value calculation means 1J, and determines an assignment car which outputs an assignment command. Means, 1L is an operation for controlling the overall operation of the elevator based on an assignment command from the assigned car determination means 1K. A control means.

In the first embodiment, each of the units 1A to 1L constituting the group management control device 1 is entirely constituted by software on a microcomputer.

Next, the operation of the first embodiment will be described.
This will be described with reference to the flowchart of FIG. In FIG. 3, when the group management control system is started, first, in step S101, the limit value setting unit 1A sets a limit value (upper limit value) of the number of calls assigned to each car, a limit value of a long waiting time, Set the initial values such as the full capacity limit. Here, the number of calls is limited by limiting the number of calls assigned to each car with respect to a destination call from a congested floor (usually the main floor) or a hall call to a congested floor, thereby making the round time of each car ( Round Trip Time: The time required for one round from departure of a given floor to return to that floor (hereinafter referred to as RTT).
The service for the congested floor is enhanced. In the first embodiment, the setting is made using the following equation (1). Nominal call limit value = F / NI (1) F: Number of floors on the middle floor NI: Limit parameter (1 ≦ NI ≦ cars)

In general, in an office building, the traffic volume fluctuates greatly in a relatively short time (usually about one hour) from an early morning or night idle state to a maximum peak time at the time of going to work or leaving work. The belt is divided into several patterns from off-peak to peak hours, and normal operation (NI =
In the case of 1), the NI may be gradually increased to the maximum number of cars according to the degree of peak in the up-peak time zone or the down-peak time zone in which the degree of congestion increases, and the number of calls assigned to each car may be reduced. That is, when the time of congestion and the degree of congestion are predicted in advance, such as when going to work or leaving work, the NI value corresponding to this degree of congestion is stored in the microcomputer in advance, and the timer of the microcomputer is used. The NI may be changed for each time zone in conjunction with the function.

The long wait limit value and the full load limit value set the upper limit values of the waiting time and the load in the car (ride rate), and are set as follows in the first embodiment. Long wait limit value: 1st limit = 60 seconds, 2nd limit = 90 seconds,... (Hereinafter, every 30 seconds) Full limit value: 1st limit = 50% load in car, 2nd limit = 60%,. 10% increments)

The reason why a plurality of limit values are set as the first limit and the second limit is that the limit values are relaxed in case that no car satisfies these limit values depending on the traffic flow. The details will be described later. The setting of the limit value in step S101 is 1
It is configured to be periodically reset at a frequency of every minute to 5 minutes, and in conjunction with the relaxation of the limit value described later, the optimum limit value is always set in response to a change in traffic flow. I have.

After the various limit values are set in step S101, each time a new call (a destination call and a hall call) is generated, an optimum car is allocated as follows. That is, first, step S102
When the occurrence of a new hall call from the destination call registration / service number display device 3 and the hall call button 4 or a destination call from the main floor is detected, the predictive calculation means 1C resets each car in step S103. The estimated arrival time of each car at each floor, the estimated waiting time for each unanswered call, and the estimated load in the car at each floor, calculated with and without assigned to this new call. The fullness probability is calculated.

When the prediction calculation is completed in step S103, the process proceeds to step S104, where the unanswered call number detecting means 1D calculates the number of unanswered calls registered in each car so far for each car. . The first embodiment
Calculates the number of unanswered calls based on the total number of unanswered hall calls and destination calls, including new calls at the time when a new call occurs, and the number of calls assigned per round of each car. It is different from a number. In addition, when the hall call and the destination call match, it is regarded as one call. For example, in the first car, the destination call (main floor is 1F): 1F → 3F, 1F → 5F,
1F → 8F Intermediate floor hall call: If 7F (DOWN) is assigned and the new call is a 5F (UP) hall call, the number of unanswered calls is 3 destination calls (3F, 5F, 8F) + Intermediate floor hall call 2 (5F, 7F) × 2-coincidence of hall call and destination call 1 (5F) = 6 Here, the number of intermediate floor hall calls is doubled because the number of destination calls generated by that hall call (when stopped at a hall call, the passengers waiting on that floor get into the car and enter a new destination Average 1 calls
It is assumed that one is registered).

When the number of unanswered calls is calculated in step S104, in step S105, the number-of-calls limiting means 1E determines the number of unanswered calls of each car calculated in step S104 and the number of calls set in step S101. The number limit value is compared, and a car having the number of unanswered calls equal to or less than the call number limit value is selected as a candidate car for limiting the number of calls.

Next, in step S106, the long waiting capacity limiting means 1F calculates the predicted waiting time for each unanswered call of each car calculated in step S103 and the result of the prediction calculation relating to the probability of being full and the length set in step S101. The waiting limit value and the first limit of the fullness limit value are compared, and a car that does not exceed this limit value is selected, and is set as a long waiting fullness limit candidate car.

When the long waiting capacity limit candidate car is selected in step S106, in step S107, the candidate car selecting means 1G determines whether or not the candidate number limiting candidate selected based on the number of calls in step S106 is equal to the number of call limit candidates. The car that satisfies both the selected long waiting capacity restriction candidate cars is selected as the final assigned candidate car for this new call.

In step S108, it is determined whether or not the candidate car selected in step S107 exists. If there is a candidate car, step S109 is performed.
Then, the evaluation value calculation means 1J determines the so-called waiting time (total time until the car responds to the hall call) for the final allocation candidate car selected in the above step. After performing well-known evaluation value calculations such as evaluation, boarding time evaluation, and out-of-forecast (probability that a car other than the car initially assigned responds to the hall call), the assigned car determination unit 1K performs step S110. The various evaluation values calculated in step S109 are comprehensively evaluated, the best car is determined as the assigned car, and the information on the assigned car is transmitted to the operation control means 1L. The operation control means 1L assigns cars based on the information on the assigned cars and controls the operation of each car.

On the other hand, if there is no candidate car satisfying the limit value set by the limit value setting means 1A in step S108, in the first embodiment,
The process proceeds to the limit value easing process of 111, and the limit condition easing unit 1H relaxes the limit value initially set by the limit value setting unit 1A in the following procedure, and then proceeds to step S105.

In the following, the procedure for relaxing the limiting condition in step S111 will be described in detail with reference to the flowchart in FIG. If there is no candidate car that satisfies the limit value set by the limit value setting means 1A in step S108, the process proceeds to step S112 in FIG. 4, and the car is first assigned to each car by the unanswered call number detection means 1D. The maximum value of the number of unanswered calls is detected. In step S113, the currently set limit value of the number of calls is set as a new limit value of the number of calls, for example, the number increased by 1, and in step S114, the limit value of the new number of calls is set to the above value. The number is compared with the maximum value of the number of unanswered calls assigned to each car. If the number is equal to or less than the maximum value, the process returns to step S105, and the steps from step S105 to step S108 are repeated. In this way, until an allocation candidate car is selected in step S108,
The call number limit value is sequentially increased, and step S105
Steps S108 to S108 are repeated.

On the other hand, if the allocation candidate car cannot be selected even if the number-of-calls limit value is increased as described above, finally, the process proceeds from step S114 to step S115. In this case, in step S115, Once the call number limit value is returned to the initial value set in step S101, the long wait and full load limit value are set to the second limit value in step S116, and the process proceeds to step S105 to go to steps S105 to S108. Repeat the above steps. If the candidate car is not selected yet, similarly in step S116, the long wait and the full capacity limit are gradually reduced from the third limit to the fourth limit in order,
This procedure is repeated until an allocation candidate car is selected.

As described above, according to the first embodiment, the number-of-calls limiting means 1E and the long waiting capacity limiting means 1F
Selects a candidate car that satisfies the number-of-calls limit value, the long-wait limit value, and the full capacity limit value set by the limit value setting means 1A, and the assigned car determination means 1K responds to a new call from among these candidate cars. Since the car is selected and assigned, the rounding time of each car is shortened, the transport amount and the transport efficiency are improved, and the service can be prevented from being deteriorated due to a long waiting time or full capacity.

Further, since the assigned car deciding means 1K is configured to select the optimum car from these candidate cars based on the evaluation result of the evaluation value calculating means 1J and to assign it to a new call, various evaluation values can be obtained. It is possible to evaluate and assign an optimum car, and the service for the user is further improved.

When there is no car that satisfies the call number limit value, the long wait limit value, and the full capacity limit value, the limit condition relaxing means 1H for relaxing these limit values is provided. In addition to this, it is possible to flexibly change the call number limit value of the car according to the traffic flow, which has the effect of improving the transportation efficiency.

Further, since the number-of-call limit value, the long-wait limit value, and the full-capacity limit value set by the limit value setting means 1A are reset at regular time intervals, from the off-peak time to the peak time, the traffic flow is controlled according to the traffic flow. A car can be allocated, which has the effect of improving transport efficiency.

As a method of calculating the number of unanswered calls,
Because it is configured to calculate the total number of destination calls and hall calls, it is possible to process with exactly the same algorithm at the time of up-peak and down-peak, and to control two or more at the time of up-peak and down-peak There is an effect that the system and the processing program are simplified as compared with the case where the algorithm is used together.

In the calculation of the number of unanswered calls, if the hall call matches the destination call, it is regarded as one call, and the number of destination calls generated by the middle floor hall call is taken into account. Has the effect of making the calculation of the car more precise and making the selection of the car more appropriate.

In the first embodiment, step S
At 107, an example is shown in which a candidate car included in both the call number restriction candidate car selected in step S105 and the long waiting capacity restriction candidate car selected in step S106 is extracted and an allocation candidate car is selected. But
A car that satisfies the long wait limit value and the full capacity limit value may be directly extracted from the call number limit candidate cars selected in step S105 to select an allocation candidate car, and further, step S103. The prediction calculation of may not be at the position shown in FIG. 3 before the selection of the long waiting capacity restriction candidate car in step S106.

Also, in the first embodiment, an example has been described in which the method of calculating the number of unanswered calls is the same at the time of an up-peak time and at the time of a down-peak time. For example, at the time of a down peak, the number-of-calls limit value and the number of unanswered calls may be set to DOWN.
If it is configured to calculate from the number of calls (a hall call registered to move to a lower floor by the hall call button 4), during a down peak time, the destination call generated by the hall call on the middle floor is almost the main. The number of unanswered calls is calculated more accurately than when the number is doubled, because the number of stops is less than two times because there are fewer stops on the floor, and the number of unanswered calls is calculated based on the number of unanswered calls and the number of unanswered calls. In this case, the candidate car for limiting the number of calls can be selected.

In the first embodiment, the destination call registration / service number display device 3 displays a destination floor button 3A for a passenger to register a destination and a number (car) assigned to the registered destination floor. Although the example configured from the service number display panel 3B is shown, the service number display panel 3B that displays the assigned number (car) for the registered destination floor informs the passenger of the destination floor and the passenger to the same floor is the same car. The destination floor button 3A for the passenger to register the destination in order to further improve the transportation efficiency by guiding the passenger to the destination.
I only need to have.

Further, in the first embodiment, an example has been shown in which the NI value is changed at both the up-peak time and the down-peak time to perform the processing at the peak time. Needless to say, the processing may be performed only at one of the peak times.

Embodiment 2 FIG. 5 is a block diagram showing a configuration of a group management control system according to Embodiment 2 of the present invention. As shown in FIG. 5, this embodiment 2
A traffic flow discriminating means 1M for discriminating a traffic flow generated in a building as a characteristic component, and a call separating means 1N for selecting an allocation candidate car for call separation when performing call separation. Since the components other than the traffic flow discriminating means 1M and the call separating means 1N are completely the same as those in the first embodiment shown in FIG. 1, the same or corresponding parts in FIG. The description is omitted. In addition,
Also in the second embodiment, each of the above-described units 1A to 1N constituting the group management control device 1 is entirely constituted by software on a microcomputer.

Hereinafter, the operation of the second embodiment will be described.
This will be described with reference to the flowchart of FIG. In FIG. 6, when the group management control system is activated, first, in step S201, the traffic flow discriminating means 1M communicates with each of the control devices 2 by the destination call registration / service number display device 3 and the hall call button 4 to communicate with each vehicle. From the status of the destination call and the hall call registered via the means 1B, the traffic flow at each elevator hall in the building is grasped, and the occurrence of up-peak and down-peak is detected.

The traffic flow can be detected by detecting the status of call registration using the destination call registration / service number display device 3 or the hall call button 4 as described above, or by using a human sensor such as an ultrasonic sensor at the elevator hall. A sensor or a TV camera may be installed to detect the congestion degree of the elevator platform by image processing or the like. Further, as a specific method of determining the traffic flow, for example, a method using the total number of passengers and the degree of congestion of the main floor, a method of performing pattern determination using a neural network technology, and the like are conventionally known. ing.

When the traffic flow is detected in step S201, the process proceeds to step S202, and the limit value setting means 1A is assigned to each car based on the traffic flow detected by the traffic flow discriminating means 1M. The initial values such as the limit value of the number of calls, the limit value of the long waiting time, and the limit value of the full capacity are set, and further, the necessity of the call separation is determined.

Here, in the second embodiment, the formula for calculating the initial value of the call limit value is changed between the up-peak time and the down-peak time, and the up-peak is detected by the traffic flow discriminating means 1M. In the case, as in the first embodiment, the number of calls limit value = F / NI (2) F: the number of floors on the intermediate floor NI: the limit parameter (1 ≦ NI ≦ the number of cars) Limit value = F / N (3) F: Number of intermediate floors N: Number of cars

As a method for calculating the limit value of the number of calls at the time of a down peak other than the above, for example, Japanese Patent Publication No. 1-247
No. 11 disclosed in Japanese Patent Publication No. 11 = √ ((F / N * (F * H / V + t + L))
/ (H / 2V + t)) H: Floor height V: Car speed t: Stop loss time L: Number of people getting off the floor may be used.

The long-wait limit value and the full-load limit value are the same as in the first embodiment. Long-wait limit value: first limit = 60 seconds, second limit = 90 seconds,. Value: First limit = 50% in-car load, second limit = 60%,... (Hereinafter, 10% steps).

In order to further shorten the round trip time (RTT) when the peak becomes stronger, at the time of the uppeak, the call separation responds to the call from the middle floor and the destination from the main floor. The car to answer the call,
At the time of a down-peak, whether to respond to an up call or to respond to a down call is separated (assigned). In the second embodiment, based on the traffic flow detected by the traffic flow discriminating means 1M. It is set so that call separation is not performed during quiet or weak peaks.

As described above, in the second embodiment, the traffic flow discriminating means 1M discriminates an up-peak or a down-peak, and sets the limit value according to the traffic flow detected by the traffic flow discriminating means 1M. Means 1A are configured to change the initial set values of the call number limit value, the long waiting time limit value, and the full capacity limit value assigned to each car;
Discrimination of traffic flow in step S101 and step S10
The setting of the limit value of 2 is determined and reset periodically every 5 minutes, and the most suitable control is always selected and executed in response to a change in traffic flow.

After the various limit values are set in step S202, each time a new call (destination call or hall call) is generated, an optimum car is allocated as follows. That is, first, in step S203,
When the occurrence of a new hall call from the destination call registration / service number display device 3 or the hall call button 4 or a destination call from the main floor is detected, in step S204, the prediction calculation means 1C causes each of the cars to read the new car. Estimated time of arrival of each car to each floor, estimated waiting time for each unanswered call, and estimated load in the car at each floor, calculated from the estimated time of arrival at each floor, with and without assigned calls Predict the probability.

Next, when the prediction calculation is completed in step S204, the process shifts to step S205, and step S202
It is determined whether or not call separation is set, and whether the processing is up-peak processing or down-peak processing. If call separation is not set, step S20 is performed.
When the call separation is set and the up-peak processing is performed, the flow branches to step S207. When the call separation is set and the down-peak processing is performed, the flow branches to step S208.

Hereinafter, the case where the call separation is not set will be described. If the call separation is not set in step S202, the process proceeds from step S205 to step S20.
The call branches to 6 and the unanswered call number detecting means 1D calculates the number of unanswered calls registered in each car so far for each car. In the second embodiment, the formula for calculating the number of unanswered calls is changed between up-peak and down-peak.
During the up-peak period, as in Embodiment 1, the total number of unanswered hall calls and destination calls including the new call at the time of the new call occurrence, and during the down-peak time, a new call occurs It is calculated from the number of unanswered DOWN calls including the new call at the point of time. For example,
15F, 14F, 13F in a certain car during down peak
(All in the DOWN direction) are assigned, and 15
The number of unanswered calls of the car after answering the call of F is two.

When the number of unanswered calls is calculated in step S206, the number-of-calls limiting means 1E determines in step S209 the number of unanswered calls of each car calculated in step S206 and the number of calls set in step S202. The number limit value is compared, and a car having the number of unanswered calls equal to or less than the call number limit value is selected as a candidate car for limiting the number of calls.

On the other hand, in step S205, if call separation is set and up-peak processing is performed, the flow branches to step S207. If the call is a destination call from the main floor in step S207, the flow shifts to step 206 described above. Otherwise, the process proceeds to step S210, in which the call separating means 1N separates the car responding to the call from the middle floor,
The candidate car for the middle floor call is selected. The selection of a candidate car for an intermediate floor call is performed by selecting a car to which a main floor destination call is not assigned and a new call does not become a rear call as an intermediate floor call candidate car. Here, the back call means that when the car is traveling in the same direction as the new call and the new call is generated in the rear of the traveling direction, or when the direction is to be reversed in the future, the floor It means a call or the like that has occurred even further. If there is no car that satisfies the above condition, all available cars in the management are selected as intermediate floor call candidate cars.

In step S205, if call separation is set and down-peak processing is performed, the flow branches to step S208. If the call is a DOWN call in step S208, the flow shifts to step 206 described above, where an UP call (a hall call button) is performed. In step S211, the call separating means 1N separates the car which responds to the UP call, in the case of a hall call in which the movement to the upper floor is registered according to 4).
The allocation candidate car for the UP call is selected. In addition,
Selection of an UP call candidate car is performed by selecting a car to which a DOWN direction unanswered call is not assigned and a new call does not become a back call as an UP call candidate car. Here, a back call is a case where the car is traveling in the UP direction or traveling in the DOWN direction but is scheduled to be reversed at a predetermined floor in the UP direction, and a new call is generated below the predetermined floor. Means If there is no car that satisfies the above condition, all available cars in the management are selected as UP call candidate cars.

As described above, steps S209 and S209
After the candidate car is selected in step 210 and step S211, next, in step S212, the long waiting capacity limiting means 1F calculates the predicted waiting time and the capacity probability for each unanswered call of each car calculated in step S204. The result of the prediction calculation is compared with the long wait limit value and the first limit of the full capacity limit value set in step S202, a car that does not exceed the limit value is selected, and a long wait full capacity limit candidate is set.

Next, in step S212, when a long waiting capacity restriction candidate car is selected, in step S213, the candidate car selecting means 1G causes the candidate car selecting means 1G to execute steps S209 and S2.
10. A car that satisfies both the candidate car selected in step S211 and the candidate car selected in step S212 is selected as a final assignment candidate car for the new call.

Then, in step S214, it is determined whether or not the candidate car selected in step S213 exists. If there is a candidate car, step S215 is performed.
Then, the evaluation value calculation means 1J performs well-known evaluation value calculation such as waiting time evaluation, boarding time evaluation, and forecast deviation evaluation on the final allocation candidate car selected in the above step. Thereafter, in step S216, the assigned car determining means 1K comprehensively evaluates the various evaluation values calculated in step S215, determines the best car as the assigned car, and furthermore, the information of the assigned car is referred to as the operation control means. Transmit to 1L. The operation control means 1L assigns cars based on the information on the assigned cars and controls the operation of each car.

On the other hand, if there is no candidate car which satisfies the limit value set by the limit value setting means 1A in step S214, the process proceeds to the limit value easing process in step S217, and the limit condition is relaxed in the following procedure. After the means 1H relaxes the limit value initially set by the limit value setting means 1A,
The process proceeds to step S212 or step S209, depending on whether or not there is call separation.

Hereinafter, the procedure for relaxing the limiting condition in step S217 will be described in detail with reference to the flowchart in FIG. In the above step S214, the limit value setting means 1
If there is no candidate car that satisfies the limit value set in A, the process shifts to step S218 in FIG. 7 to determine whether the call separation is set, whether the call separation is up-peak processing, or the down-peak processing. It is determined whether there is a call. If call separation is not set, step S219 is performed. If call separation is set and up-peak processing is performed, step S220 is performed. Call separation is set and down-peak processing is performed. If so, the process branches to step S221.

If the call separation is not set, the maximum value of the number of unanswered calls assigned to each car is detected by the unanswered call number detecting means 1D in step S219, and is currently set in step S222. The limit value of the number of calls is increased by, for example, 1 as a new limit value of the number of calls. In step S223, the new limit value of the number of calls is set to the number of unanswered calls assigned to each of the cars. Is compared with the maximum value. If the value is equal to or less than the maximum value, the process returns to step S209, and the process returns to step S209.
Steps up to Step S214 are repeated. In this way, the call number limit value is sequentially increased until an allocation candidate car is selected in step S214.
The procedure from 209 to S214 is repeated.

On the other hand, if the allocation candidate car cannot be selected even when the number-of-calls limit value is increased in this way, finally, the process proceeds from step S223 to step S224. In this case, in step S224, Once the call number limit value is returned to the initial value set in step S202, the long wait and full load limit value are set in step S225 to the second limit value, and the process proceeds to step S209 to proceed to steps S209 to S214. Repeat the above steps. If the candidate car is not selected, the long wait and the full capacity limit are similarly relaxed in the order of the third limit, the fourth limit, and the like in step S225.
This procedure is repeated until an allocation candidate car is selected.

If it is determined in step S218 that the call separation is set and the up-peak processing is being performed, the process branches to step S220. If the new call is not an intermediate floor call, the process proceeds to step S219. Shifts to step S226, and in step S226, after the long waiting time and the fullness limit value are set to the second limit value, the process shifts to step S212 to execute steps S212 to S2.
Repeat step 14 If the allocation candidate car is still not selected, similarly, in step S226, the long wait and the full capacity limit are relaxed in the order of the third restriction → the fourth restriction → in order, until the allocation candidate car is selected. Repeat this procedure.

Further, in step S218, if call separation is set and down-peak processing is performed, the flow branches to step S221. If the new call is not an UP call, the process proceeds to step S219. If the new call is an UP call, the process proceeds to step S227. The process proceeds to step S227. After the long wait and the fullness limit value are set to the second limit value in step S227, the above-described step S2 is performed.
Then, the process proceeds to step S12, and the procedure of steps S212 to S214 is repeated. If the candidate car is still not selected, similarly, in step S227, the long wait and the full capacity limit are gradually reduced from the third limit to the fourth limit in order, until the candidate car is selected. Repeat this procedure.

As described above, according to the second embodiment, similarly to the first embodiment, there is an effect that the transportation amount and the transportation efficiency can be improved, and the service to passengers can be prevented from being deteriorated due to long waiting or full capacity. , A traffic flow discriminating means 1M is provided,
Since the limit value setting means 1A is configured to set the initial value of the call number limit value according to the actual traffic flow, the call count limit value can be quickly set to an appropriate value corresponding to the fluctuation of the actual traffic flow. There is.

Further, since the traffic flow discriminating means 1M automatically detects the occurrence of an up-peak or a down-peak by monitoring the actual traffic flow, the limit value setting means 1A sets the call number limit value. Compared with the case where the time zone is determined by the timer and the initial setting value is set, for example, even when the traffic flow is temporarily concentrated due to a meeting or the like, it is possible to flexibly cope with the peak load, and This has the effect of improving the volume and transportation efficiency and preventing a decrease in service to passengers due to long waiting and full capacity.

Further, since the call separation means 1N is provided and the call separation is performed based on the result of the discrimination by the traffic flow discrimination means 1M, the call separation is performed even when the congestion degree at the peak is further increased. The round trip time (RTT) of each car can be further shortened, and there is an effect that the transport amount and the transport efficiency are improved.

Further, since the formula for calculating the number of unanswered calls is changed between the up-peak time and the down-peak time, control according to the characteristics at each peak can be performed, and the transport amount and the transport efficiency can be further improved. There is.

[0078]

Since the present invention is configured as described above, it has the following effects.

In an elevator group management control system for controlling a plurality of cars as a group, limit value setting means for setting a call number limit value, a long wait limit value, and a full capacity limit value assigned to each car; At the time of registration, the number of unanswered calls assigned to each car is detected, and the number of unanswered calls is equal to or less than the number-of-calls limit set by the limit value setting means. A call number candidate car selecting means for selecting a candidate car, and an operation status of each car are predicted, and a long waiting capacity limit candidate car which satisfies the long waiting limit value and the full capacity limit value set by the limit value setting means is selected. A means for selecting a car to be assigned the new call from the car selection means for selecting a car with a long waiting capacity and a car that satisfies both the car for limiting the number of calls and the car for a car with long waiting capacity. Because it was a hit or your determination means,
The rounding time of each car at the peak time is shortened, so that the transport amount and the transport efficiency are improved, and there is an effect that the service can be prevented from being deteriorated due to a long waiting time or a full capacity.

Further, the above-mentioned call number candidate car selecting means is configured to select the number-of-call limit candidate cars based on the total number of the hall calls and destination calls assigned to each car. It is possible to allocate a more appropriate car, which has the effect of improving the transport volume and transport efficiency.

Since the number-of-calls candidate car selecting means is configured to select the number-of-calls candidate car based on the number of DOWN calls assigned to each car, a more appropriate car especially at the time of down-peak. Can be assigned, which has the effect of improving the transport volume and transport efficiency.

Further, since different formulas are used for the calculation of the number of unanswered calls at the time of up-peak and at the time of down-peak, control can be performed in accordance with the characteristics of up-peak and down-peak. The rounding time of each car at the peak time is shortened, the transport volume and the transport efficiency are further improved, and the service can be prevented from being deteriorated due to long waiting time or full capacity.

Further, since the assigned car determining means is configured to determine the car to which the new call is to be assigned based on the evaluation value calculated by the evaluation value calculating means, various evaluation values are evaluated and an optimum car is assigned. This has the effect of further improving the service for the user.

If there is no car that satisfies both the car number limit candidate car and the long waiting capacity limitation candidate car, the call number limit value, the long wait limit value, or the full capacity limit set by the limit value setting means. Since the restriction condition relaxing means for correcting at least one of the limit values is provided, the car can be securely assigned, and the call number limit value of the car can be flexibly changed according to the traffic flow, This has the effect of improving transport efficiency.

Further, there is provided a traffic flow discriminating means for discriminating a traffic flow in the building, wherein the limit value setting means sets the initial value of at least one of a call number limit value, a long wait limit value and a full capacity limit value. Since it is configured to be set based on the result of the discrimination by the traffic flow discriminating means, the call limit value can be quickly set to an appropriate value corresponding to the actual traffic flow fluctuation,
In addition to the effect of improving the transport efficiency, there is an effect that it is possible to flexibly cope with the peak load even when the traffic flow is temporarily concentrated in a meeting or the like.

Further, a call separating means for separating a car responding to a destination call from the main floor and a car responding to a hall call from the intermediate floor and providing a call separating means for selecting a candidate car for the intermediate floor is provided. Since the determining means is configured to determine the car to which the new call is to be assigned, from among the cars satisfying both the intermediate floor call candidate car and the long waiting capacity restriction candidate car, the degree of congestion at the time of up peak is further increased. Also in this case, by performing the call separation, the round trip time (RTT) of each car can be further shortened, and there is an effect that the transport amount and the transport efficiency are improved.

In addition, the response to the UP call and the DOW
A call separating means for separating a car responding to the N call and selecting an UP call candidate car is provided, and the assigned car deciding means is a car satisfying both the UP call candidate car and the long waiting capacity restriction candidate car. Therefore, since the car to which the new call is to be assigned is determined, even when the congestion degree during the down peak is further increased, the round trip time (RTT) of each car can be further shortened by performing the call separation. This has the effect of improving the transport volume and transport efficiency.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a destination call registration / service number display device of the elevator group management control system according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the elevator group management control system according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing a procedure for alleviating a restriction condition of the elevator group management control system according to the first embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of an elevator group management control system according to a second embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the elevator group management control system according to the second embodiment of the present invention.

FIG. 7 is a flowchart showing a procedure for alleviating a restriction condition of the elevator group management control system according to the second embodiment of the present invention.

[Description of Signs] 1 Group Management Controller 1A Limit Value Setting Means 1B Communication Means 1C Prediction Calculation Means (Long Waiting Full Candidate Car Selection Means) 1D Unanswered Call Number Detection Means (Call Number Candidate Car Selection Means) 1E Call Number Limit Means (call number candidate car selection means) 1F Long waiting capacity limit means (long waiting capacity candidate car selection means) 1G Candidate car selection means 1H Limit condition relaxing means 1J Evaluation value calculation means 1K Assigned car determination means 1L Operation control means 1M Traffic Flow discriminating means 1N Call separation means 2 Each car control device 3 Destination call registration / service number display device 3A Destination floor button 3B Service number display panel 4 Stop call button

Claims (9)

[Claims] In an elevator group management control system for controlling a plurality of cars as a group, a limit value setting means for setting a call number limit value, a long wait limit value, and a full capacity limit value assigned to each car, At the time when the call is registered, the number of unanswered calls assigned to each car is detected, and the number of unanswered calls becomes equal to or less than the number-of-calls limit value set by the limit value setting means. A call count candidate car selecting means for selecting a call count limit candidate car, and a long wait capacity limit candidate car which satisfies the long wait limit value and the full capacity limit value set by the limit value setting means by predicting the operation status of each car. Means for selecting a long waiting packed candidate car, and a car to which the new call is to be assigned is determined from among the cars satisfying both the call number limiting candidate and the long waiting packed limit candidate car. An elevator group management control system, comprising: an assigned car determining unit. 2. The call number candidate car selecting means according to claim 1, wherein said call number candidate car selecting means selects a call number restriction candidate car based on the total number of hall calls and destination calls assigned to each car. Elevator group management control system. 3. The elevator group according to claim 1, wherein said call number candidate car selecting means selects a call number restriction candidate car based on the number of DOWN calls assigned to each car. Management control system. 4. The elevator group management control system according to claim 1, wherein different formulas are used for calculating the number of unanswered calls at the time of up-peak and at the time of down-peak. . 5. A group of elevators according to claim 1, wherein said assigned car determining means is configured to determine a car to which said new call is assigned based on the evaluation value calculated by said evaluation value calculating means. Management control system. 6. If there is no car that satisfies both the call number limit candidate car and the long waiting capacity limit candidate car, the call number limit value, the long wait limit value or the full capacity set by the limit value setting means. 2. The elevator group management control system according to claim 1, further comprising a restriction condition relaxing means for correcting at least one of the restriction values. 7. A traffic flow discriminating means for discriminating a traffic flow in a building, wherein the limit value setting means sets an initial value of at least one of a call number limit value, a long wait limit value, and a full capacity limit value, 2. The elevator group management control system according to claim 1, wherein the setting is made based on a result of the discrimination by the traffic flow discriminating means. 8. A car separating means for separating a car responding to a destination call from the main floor and a car responding to a hall call from the intermediate floor, and providing a call separating means for selecting a candidate car for the intermediate floor. 2. The elevator according to claim 1, wherein the determining unit is configured to determine a car to which the new call is to be assigned, from cars satisfying both the intermediate floor call candidate car and the long waiting capacity restriction candidate car. 3. Group management control system. 9. A call separating means for separating a car responding to an UP call and a car responding to a DOWN call, and providing a car separating means for selecting an UP call candidate car, wherein the assigned car determining means comprises a 2. The system according to claim 1, wherein a car to which the new call is assigned is determined from cars satisfying both of the long waiting capacity restriction candidate cars.
2. The group management control system for an elevator according to claim 1.