EP2216283A1 - Elevator system - Google Patents
Elevator system Download PDFInfo
- Publication number
- EP2216283A1 EP2216283A1 EP07850295A EP07850295A EP2216283A1 EP 2216283 A1 EP2216283 A1 EP 2216283A1 EP 07850295 A EP07850295 A EP 07850295A EP 07850295 A EP07850295 A EP 07850295A EP 2216283 A1 EP2216283 A1 EP 2216283A1
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- EP
- European Patent Office
- Prior art keywords
- exclusive
- elevators
- exclusive operation
- switchover
- threshold value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/2408—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration where the allocation of a call to an elevator car is of importance, i.e. by means of a supervisory or group controller
- B66B1/2458—For elevator systems with multiple shafts and a single car per shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
- B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
- B66B1/18—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of several cars or cages
- B66B1/20—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of several cars or cages and for varying the manner of operation to suit particular traffic conditions, e.g. "one-way rush-hour traffic"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B2201/00—Aspects of control systems of elevators
- B66B2201/10—Details with respect to the type of call input
- B66B2201/103—Destination call input before entering the elevator car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B2201/00—Aspects of control systems of elevators
- B66B2201/40—Details of the change of control mode
- B66B2201/405—Details of the change of control mode by input of special passenger or passenger group
Definitions
- the present invention relates to an elevator system which performs group supervisory control of a plurality of elevators and can switch a subset of the elevators to exclusive operations.
- a plurality of elevators are installed within the same building and group supervisory control of the plurality of elevators is performed to improve the overall efficiency of operation.
- Some of such elevators are configured in such a manner that a subset of the elevators under group supervisory control are capable of being switched to exclusive operations, Examples of exclusive operations include a VIP (very important person) operation dedicated to VIPs, and a baggage operation for conveying large baggage and the like.
- VIP very important person
- Patent Document 1 Japanese Patent Laid-Open No. 2004-18229
- the elevator system described in Patent Document 1 had the problem that a delay occurs in a switchover to an exclusive operation. That is, even when a switchover to an exclusive operation for VIPs and other persons has been performed, it is after all users who have registered their destination calls are conveyed to designated floors that the exclusive operation is actually started. Particularly, in buildings where the number of elevator users is large and in prescribed time zones, a long time passes before a switchover to an exclusive operation, with the result that VIPs and other persons had to wait for a long time.
- the present invention has been made to solve problems as described above and the object of the invention is to ensure that in an elevator system which enables a subset of a plurality of elevators under group supervisory control to be switched to exclusive operations, a decrease in the operation efficiency of the whole system can be prevented and switchovers to exclusive operations can be performed quickly.
- An elevator system of the present invention is an elevator system that performs group supervisory control of a plurality of elevators, which comprises a call registration device with which an elevator user registers his or her destination floor before getting in a car, an exclusive operation switchover device which sends a switchover request in order to switch a subset of the plurality of elevators to exclusive operations, computation means which computes service time for destination calls which have already been registered by the call registration device regarding the subset of the elevators upon receipt of the switchover request from the exclusive operation switchover device, and exclusive operation control means which performs services for some of the destination calls in a range not exceeding a prescribed threshold value on the basis of service time computed by the computation means and switches the subset of the elevators to exclusive operations without performing services for the remaining destination calls.
- an elevator system which enables a subset of a plurality of elevators under group supervisory control to be switched to exclusive operations, it becomes possible to prevent a decrease in the operation efficiency of the whole system and to perform switchovers to exclusive operations quickly.
- FIG. 1 is a block diagram showing an elevator system in a first embodiment according to the present invention.
- a plurality of elevators installed within the same building are brought under group supervisory control and furthermore a subset of the elevators (one or more elevators) can be switched to exclusive operations, such as a VIP operation and a baggage operation.
- reference numeral 1 denotes a call registration device for registering destination floors of the elevator.
- this call registration device 1 sends a destination call registration request for registering a destination call to a group supervisory controller 2.
- the call registration device 1 is provided with assignment car information means 3 which informs users nearby of a car assigned to the destination call registration request (hereinafter, referred to also as an "assignment car").
- the above-described call registration device 1 is installed in each hall of the elevator, for example, and is provided with input buttons with which users register their destination floors before they get in the car, and a display or a speaker for informing elevator users nearby of an assignment car.
- this configuration shows only one example and the call registration device 1 may be otherwise configured.
- the call registration device 1 may be a mobile terminal carried by an elevator user, which permits radio communication with the group supervisory controller 2.
- a cellular phone, a PHS (Personal Handyphone System), a PDA (Personal Didital Assistance), a notebook-size personal computer and the like can be used as the above-described mobile terminal.
- the call registration device 1 may be such that the device has a function of personal ID collating function and personal ID data as a function for registering destination floors and that when a user collates a personal ID, the device refers to the personal ID data and automatically discriminates a destination floor.
- a destination call registration request corresponding to the destination floor stored in the personal ID data is automatically sent to the group supervisory controller 2.
- the collation of a personal ID by a user is performed on the basis of, for example, a key, a card an IC tag and the like in which a personal ID is recorded, and biological information, such as a fingerprint, a vein, a voice print and an iris.
- the group supervisory controller 2 is a device for group supervisory control of a plurality of elevators installed in the same building.
- the group supervisory controller 2 is provided with, for example, assignment car determination means 4 and exclusive operation control means 5.
- the assignment car determination means 4 has a function of assigning a car on the basis of the operation condition of each elevator and the like to a received destination call registration request when the group supervisory controller 2 has received the destination call registration request. And after performing the assignment of a car to the destination call registration request, the assignment car determination means 4 sends destination call assignment instructions to an each-elevator supervisory controller 6 and sends assignment car information to the call registration device 1.
- the each-elevator supervisory controller 6 performs the operation control of each elevator.
- the each-elevator supervisory controller 6 is provided with car control means 7 which performs the operation control of the car of each elevator.
- the each-elevator supervisory controller 6 appropriately controls the operation of the car on the basis of the assigned destination call.
- the assignment car information means 3 performs lamp display and announcement, thereby informing users nearby of information on the assignment car.
- an exclusive operation switchover device 8 is intended for switching a subset of a plurality of elevators under group supervisory control to exclusive operations.
- this exclusive operation switchover device 8 sends an exclusive operation switchover request for switching the above-described subset of the elevators to the group supervisory controller 2.
- the exclusive operation control means 5 has a function of shifting the above-described subset of the elevators to exclusive operations on the basis of the exclusive operation switchover request received from the exclusive operation switchover device 8. Concretely, this exclusive operation control means 5 is provided with service time computation means 9 and threshold value storage means 10.
- the service time computation means 9 has a function of computing time necessary for performing a service (hereinafter referred to as "service time") to a destination call which has already been registered by the call registration device 1. For example, upon receiving an exclusive operation switchover request, this service time computation means 9 computes service time for the destination calls which have already been registered before the receipt of the exclusive operation switchover request regarding the subset of the elevators to be shifted to exclusive operations.
- a prescribed threshold value is stored in the threshold value storage means 10.
- the exclusive operation control means 5 performs services to the destination calls which have already been registered in a range not exceeding the above-described prescribed threshold value and thereafter shifts the subset of the elevators to exclusive operations. For example, when services to all destination calls that have already been registered are completed in the range of the threshold value stored in the threshold value storage means 10, the exclusive operation control means 5 performs all of the services and thereafter makes a shift to exclusive operations.
- the exclusive operation control means 5 When the services to all of the destination calls that have already been registered are not completed in a range not exceeding the above-described prescribed threshold value, the exclusive operation control means 5 performs only services to some of the destination calls and makes a shift: to exclusive operations without performing services to the remaining destination calls.
- the call registration device 1, group supervisory controller 2 and each-elevator supervisory controller 6 are each connected by a network and are configured to be able to mutually perform information communication.
- Figure 2 is a flowchart showing the operation of the elevator system in a first embodiment according to the present invention.
- a destination call registration request is sent from the call registration device 1 to the group supervisory controller 2 (S1).
- the group supervisory controller 2 determines an assignment car for the received destination call registration request by using the assignment car determination means 4. After the determination of the assignment car, the group supervisory controller 2 sends instructions for the assignment to the destination call to the each-elevator supervisory controller 6 and sends assignment car information to the call registration device 1 (S3).
- the call registration device 1 Upon receipt of the assignment car information (S4), the call registration device 1 informs users nearby of information on the assignment car with the assignment car information means 3 (S5).
- the each-elevator supervisory controller 6 which has received the instructions for the assignment to the destination call controls the car on the basis of the received destination call and conveys the user to the destination floor.
- each-elevator supervisory controller 6 sequentially performs services to the registered destination calls on the basis of a prescribed order and the like and conveys users to the destination floors.
- an exclusive operation switchover request is sent from the exclusive operation switchover device 8 regardless of the operation condition of the elevator (S6).
- the group supervisory controller 2 selects an elevator for which a switchover to an exclusive operation is performed on the basis of prescribed settings, conditions and the like.
- service time for destination calls which have already been registered at the time of receipt of the exclusive operation switchover request is computed by using the service time computation means 9 regarding the above-described selected elevator (hereinafter referred to as the "selected elevator")(S8).
- the exclusive operation control means 5 compares the service time computed at S8 with the prescribed threshold value stored in the threshold value storage means 10, and cancels destination calls for which the service completion time exceeds the threshold value, among the destination calls assigned to the car of the selected elevator (S9). Incidentally, at S9, when a car has not yet arrived at the departure floor for the destination calls to be cancelled, a change of the assignment of destination calls may be made.
- the exclusive operation control means 5 makes a judgment as to whether or not there are destination calls for which the service completion time does not exceed the threshold value, among the destination calls assigned to the car of the selected elevator (S10).
- the exclusive operation switchover request is put on hold until the service for the destination call is completed (S11) and after the completion of the above-described service, instructions for exclusive operation execution are sent to the each-elevator supervisory controller 6 of the selected elevator (S12).
- the flow of processing shifts to S12 immediately and instructions for exclusive operation execution are outputted.
- the each-elevator supervisory controller 6 starts an exclusive operation (S14).
- the group supervisory controller 2 upon receipt of an exclusive operation switchover request, performs services to destination calls which have already been registered in a range not exceeding a prescribed threshold value regarding an elevator which is to be shifted to an exclusive operation and does not perform services to other destination calls. Therefore, it is possible to adjust the time until the start of an exclusive operation by the above-described threshold value, and it is possible to positively prevent situations in which VIPs and other persons wait for a long time. Furthermore, because even upon receipt of an exclusive operation switchover request, services to destination calls which have already been registered are performed in a range not exceeding a prescribed threshold value regarding an elevator which is to be shifted to an exclusive operation, an extreme decrease in the operation efficiency of the whole system does not occur and it is possible to maintain efficient operations.
- services for destination calls may be performed in the order of earlier to later ones, or it may be ensured that services for destination calls can be performed as many as possible.
- Services to be performed may be determined by giving some order of priority to destination calls, and services for car calls may be preferentially performed. At this time, among destination calls in which a threshold value is exceeded, for car calls which have already been registered, canceling is performed and for hall calls which have already been registered, the assignment to other elevators is changed or canceling is performed.
- services to be performed before switchovers to exclusive operations are judged on the basis of the time necessary for performing services for destination calls which have already been registered. However, a judgment may be made by considering also the movement time until arrival at a floor at which an exclusive operation is started in addition to the above-described time.
- the exclusive operation control means 5 performs services for some of the destination calls which have already been registered in a range not exceeding the prescribed threshold value and the movement to a floor at which an exclusive operation is started, and thereafter switches a subset of the elevators to exclusive operations. According to such a configuration, it becomes possible to positively prevent the start of an exclusive operation from delaying.
- the exclusive operation switchover device 8 is configured to send a switchover request which differs from one kind of exclusive operation to another. And a threshold value is individually set for each kind of switchover request and is caused to be stored in the threshold value storage means 10. Also, for a similar reason, the switchover time to an exclusive operation may be adjusted for each user of exclusive operation, i.e., for each class or each priority of a user. In this case, the exclusive operation switchover device 8 is configured to send a switchover request which differs from one user of exclusive operation to another. And a threshold value is individually set for each switchovers request and is caused to be stored in the threshold value storage means 10.
- the switchover time to an exclusive operation may be capable of being appropriately adjusted according to the degree of crowdedness of an elevator (for example, the number of passengers getting in and off and the number of calls).
- judgment means which judges the degree of crowdedness of elevators in group supervisory control becomes further necessary.
- the above-described prescribed threshold value is individually set on the basis of the degree of crowdedness judged by this judgment means. If such a configuration is adopted, it becomes possible to positively prevent a decrease in the operation efficiency of the whole system.
- a threshold value may also be set by a plurality of combinations of the above-described elements (kinds of exclusive operations, users of exclusive operation, the degree of crowdedness of elevators). According to such a configuration, it is possible to flexibly adapt to various kinds of elevators.
- the elevator system related to the present invention can be applied to an elevator system which performs group supervisory control of a plurality of elevators and can switch a subset of the elevators to exclusive operations. When there are many elevator users, this elevator system provides especially effective means.
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Abstract
Description
- The present invention relates to an elevator system which performs group supervisory control of a plurality of elevators and can switch a subset of the elevators to exclusive operations.
- In a building and the like where there are many elevator users, a plurality of elevators are installed within the same building and group supervisory control of the plurality of elevators is performed to improve the overall efficiency of operation. Some of such elevators are configured in such a manner that a subset of the elevators under group supervisory control are capable of being switched to exclusive operations, Examples of exclusive operations include a VIP (very important person) operation dedicated to VIPs, and a baggage operation for conveying large baggage and the like.
- Conventional arts for such elevator systems include the elevator system described in
Patent Document 1 below. In this elevator system, an elevator hall is provided with a call registration device with which users resister their destination floors. And when an operation for a switchover of a nonstop floor (a switchover to an exclusive operation) is performed during an ordinary operation, all services for the destination calls which have already been registered by the above-described call registration device are carried out before a switchover to an exclusive operation is actually performed. - Patent Document 1: Japanese Patent Laid-Open No.
2004-18229 - The elevator system described in
Patent Document 1 had the problem that a delay occurs in a switchover to an exclusive operation. That is, even when a switchover to an exclusive operation for VIPs and other persons has been performed, it is after all users who have registered their destination calls are conveyed to designated floors that the exclusive operation is actually started. Particularly, in buildings where the number of elevator users is large and in prescribed time zones, a long time passes before a switchover to an exclusive operation, with the result that VIPs and other persons had to wait for a long time. - The present invention has been made to solve problems as described above and the object of the invention is to ensure that in an elevator system which enables a subset of a plurality of elevators under group supervisory control to be switched to exclusive operations, a decrease in the operation efficiency of the whole system can be prevented and switchovers to exclusive operations can be performed quickly.
- An elevator system of the present invention is an elevator system that performs group supervisory control of a plurality of elevators, which comprises a call registration device with which an elevator user registers his or her destination floor before getting in a car, an exclusive operation switchover device which sends a switchover request in order to switch a subset of the plurality of elevators to exclusive operations, computation means which computes service time for destination calls which have already been registered by the call registration device regarding the subset of the elevators upon receipt of the switchover request from the exclusive operation switchover device, and exclusive operation control means which performs services for some of the destination calls in a range not exceeding a prescribed threshold value on the basis of service time computed by the computation means and switches the subset of the elevators to exclusive operations without performing services for the remaining destination calls.
- According to the present invention, in an elevator system which enables a subset of a plurality of elevators under group supervisory control to be switched to exclusive operations, it becomes possible to prevent a decrease in the operation efficiency of the whole system and to perform switchovers to exclusive operations quickly.
-
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Figure 1 is a block diagram showing an elevator system in a first embodiment according to the present invention. -
Figure 2 is a flowchart showing the operation of the elevator system in a first embodiment according to the present invention. -
- 1
- call registration device,
- 2
- group supervisory controller,
- 3
- assignment car information means,
- 4
- assignment car determination means,
- 5
- exclusive operation control means,
- 6
- each-elevator supervisory controller,
- 7
- car control means,
- 8
- exclusive operation switchover device,
- 9
- service time computation means,
- 10
- threshold value storage means
- The present invention will be described in more detail with reference to the accompanying drawings. Incidentally, in each of the drawings, like numerals refer to like or similar parts and overlaps of description of these parts are appropriately simplified or omitted.
-
Figure 1 is a block diagram showing an elevator system in a first embodiment according to the present invention. In the elevator system shown inFigure 1 , a plurality of elevators installed within the same building are brought under group supervisory control and furthermore a subset of the elevators (one or more elevators) can be switched to exclusive operations, such as a VIP operation and a baggage operation. - In
Figure 1 ,reference numeral 1 denotes a call registration device for registering destination floors of the elevator. When a destination floor has been registered by an elevator user, thiscall registration device 1 sends a destination call registration request for registering a destination call to a groupsupervisory controller 2. Thecall registration device 1 is provided with assignment car information means 3 which informs users nearby of a car assigned to the destination call registration request (hereinafter, referred to also as an "assignment car"). - The above-described
call registration device 1 is installed in each hall of the elevator, for example, and is provided with input buttons with which users register their destination floors before they get in the car, and a display or a speaker for informing elevator users nearby of an assignment car. Incidentally, this configuration shows only one example and thecall registration device 1 may be otherwise configured. For example, thecall registration device 1 may be a mobile terminal carried by an elevator user, which permits radio communication with the groupsupervisory controller 2. A cellular phone, a PHS (Personal Handyphone System), a PDA (Personal Didital Assistance), a notebook-size personal computer and the like can be used as the above-described mobile terminal. - The
call registration device 1 may be such that the device has a function of personal ID collating function and personal ID data as a function for registering destination floors and that when a user collates a personal ID, the device refers to the personal ID data and automatically discriminates a destination floor. In this case, a destination call registration request corresponding to the destination floor stored in the personal ID data is automatically sent to the groupsupervisory controller 2. Incidentally, the collation of a personal ID by a user is performed on the basis of, for example, a key, a card an IC tag and the like in which a personal ID is recorded, and biological information, such as a fingerprint, a vein, a voice print and an iris. - The group
supervisory controller 2 is a device for group supervisory control of a plurality of elevators installed in the same building. The groupsupervisory controller 2 is provided with, for example, assignment car determination means 4 and exclusive operation control means 5. - The assignment car determination means 4 has a function of assigning a car on the basis of the operation condition of each elevator and the like to a received destination call registration request when the group
supervisory controller 2 has received the destination call registration request. And after performing the assignment of a car to the destination call registration request, the assignment car determination means 4 sends destination call assignment instructions to an each-elevatorsupervisory controller 6 and sends assignment car information to thecall registration device 1. - The each-elevator
supervisory controller 6 performs the operation control of each elevator. The each-elevatorsupervisory controller 6 is provided with car control means 7 which performs the operation control of the car of each elevator. And upon receipt of the destination call assignment instructions from the assignment car determination means 4, the each-elevatorsupervisory controller 6 appropriately controls the operation of the car on the basis of the assigned destination call.
On the basis of the assignment car information received from the assignment car determination means 4, the assignment car information means 3 performs lamp display and announcement, thereby informing users nearby of information on the assignment car. - On the other hand, an exclusive operation switchover device 8 is intended for switching a subset of a plurality of elevators under group supervisory control to exclusive operations. When a prescribed operation (the input of a signal) and the like has been performed, this exclusive operation switchover device 8 sends an exclusive operation switchover request for switching the above-described subset of the elevators to the group
supervisory controller 2. - The exclusive operation control means 5 has a function of shifting the above-described subset of the elevators to exclusive operations on the basis of the exclusive operation switchover request received from the exclusive operation switchover device 8. Concretely, this exclusive operation control means 5 is provided with service time computation means 9 and threshold value storage means 10. The service time computation means 9 has a function of computing time necessary for performing a service (hereinafter referred to as "service time") to a destination call which has already been registered by the
call registration device 1. For example, upon receiving an exclusive operation switchover request, this service time computation means 9 computes service time for the destination calls which have already been registered before the receipt of the exclusive operation switchover request regarding the subset of the elevators to be shifted to exclusive operations. - A prescribed threshold value is stored in the threshold value storage means 10. On the basis of service time computed by the service time computation means 9, the exclusive operation control means 5 performs services to the destination calls which have already been registered in a range not exceeding the above-described prescribed threshold value and thereafter shifts the subset of the elevators to exclusive operations. For example, when services to all destination calls that have already been registered are completed in the range of the threshold value stored in the threshold value storage means 10, the exclusive operation control means 5 performs all of the services and thereafter makes a shift to exclusive operations. When the services to all of the destination calls that have already been registered are not completed in a range not exceeding the above-described prescribed threshold value, the exclusive operation control means 5 performs only services to some of the destination calls and makes a shift: to exclusive operations without performing services to the remaining destination calls.
- Incidentally, the
call registration device 1, groupsupervisory controller 2 and each-elevatorsupervisory controller 6 are each connected by a network and are configured to be able to mutually perform information communication. - Next, on the basis of
Figure 2 , a description will be given of an example of a concrete operation of an elevator system having the above-described configuration.Figure 2 is a flowchart showing the operation of the elevator system in a first embodiment according to the present invention. - When an elevator user has registered his or her own destination floor before getting in a car with the
call registration device 1, a destination call registration request is sent from thecall registration device 1 to the group supervisory controller 2 (S1). Upon receipt of the destination call registration request (S2), the groupsupervisory controller 2 determines an assignment car for the received destination call registration request by using the assignment car determination means 4. After the determination of the assignment car, the groupsupervisory controller 2 sends instructions for the assignment to the destination call to the each-elevatorsupervisory controller 6 and sends assignment car information to the call registration device 1 (S3). - Upon receipt of the assignment car information (S4), the
call registration device 1 informs users nearby of information on the assignment car with the assignment car information means 3 (S5). The each-elevatorsupervisory controller 6 which has received the instructions for the assignment to the destination call controls the car on the basis of the received destination call and conveys the user to the destination floor. - The above-described operation is performed for one destination call. In actuality, however, many persons use the elevator and hence many destination call registration requests are sent to the group
supervisory controller 2 fromcall registration devices 1 installed in each hall and the like. In such a situation, a plurality of destination calls are assigned to each elevator by the assignment car determination means 4. Therefore, the each-elevatorsupervisory controller 6 sequentially performs services to the registered destination calls on the basis of a prescribed order and the like and conveys users to the destination floors. - On the other hand, when VIPs and other persons use an elevator, an exclusive operation switchover request is sent from the exclusive operation switchover device 8 regardless of the operation condition of the elevator (S6). Upon receipt of the exclusive operation switchover request (S7), first, the group
supervisory controller 2 selects an elevator for which a switchover to an exclusive operation is performed on the basis of prescribed settings, conditions and the like. And service time for destination calls which have already been registered at the time of receipt of the exclusive operation switchover request is computed by using the service time computation means 9 regarding the above-described selected elevator (hereinafter referred to as the "selected elevator")(S8). - The exclusive operation control means 5 compares the service time computed at S8 with the prescribed threshold value stored in the threshold value storage means 10, and cancels destination calls for which the service completion time exceeds the threshold value, among the destination calls assigned to the car of the selected elevator (S9). Incidentally, at S9, when a car has not yet arrived at the departure floor for the destination calls to be cancelled, a change of the assignment of destination calls may be made.
- After that, the exclusive operation control means 5 makes a judgment as to whether or not there are destination calls for which the service completion time does not exceed the threshold value, among the destination calls assigned to the car of the selected elevator (S10). When at S10 there is a destination call for which the service completion time does not exceed the threshold value, the exclusive operation switchover request is put on hold until the service for the destination call is completed (S11) and after the completion of the above-described service, instructions for exclusive operation execution are sent to the each-elevator
supervisory controller 6 of the selected elevator (S12). Incidentally, when at S10 there is no destination call for which the service completion time does not exceed the threshold value, the flow of processing shifts to S12 immediately and instructions for exclusive operation execution are outputted.
And upon receipt of the instructions for exclusive operation execution (S13), the each-elevatorsupervisory controller 6 starts an exclusive operation (S14). - According to the first embodiment of the present invention, in an elevator system which enables a subset of a plurality of elevators under group supervisory control to be switched to exclusive operations, it becomes possible to prevent a decrease in the operation efficiency of the whole system and to perform switchovers to exclusive operations quickly.
- That is, upon receipt of an exclusive operation switchover request, the group
supervisory controller 2 performs services to destination calls which have already been registered in a range not exceeding a prescribed threshold value regarding an elevator which is to be shifted to an exclusive operation and does not perform services to other destination calls. Therefore, it is possible to adjust the time until the start of an exclusive operation by the above-described threshold value, and it is possible to positively prevent situations in which VIPs and other persons wait for a long time. Furthermore, because even upon receipt of an exclusive operation switchover request, services to destination calls which have already been registered are performed in a range not exceeding a prescribed threshold value regarding an elevator which is to be shifted to an exclusive operation, an extreme decrease in the operation efficiency of the whole system does not occur and it is possible to maintain efficient operations. - Incidentally, for services to be performed after the receipt of an exclusive operation switchover request and before a switchover to an exclusive operation, various kinds of determination methods are conceivable. For example, in consideration of the order of registration of destination calls, services for destination calls may be performed in the order of earlier to later ones, or it may be ensured that services for destination calls can be performed as many as possible. Services to be performed may be determined by giving some order of priority to destination calls, and services for car calls may be preferentially performed. At this time, among destination calls in which a threshold value is exceeded, for car calls which have already been registered, canceling is performed and for hall calls which have already been registered, the assignment to other elevators is changed or canceling is performed.
- In the first embodiment, services to be performed before switchovers to exclusive operations are judged on the basis of the time necessary for performing services for destination calls which have already been registered. However, a judgment may be made by considering also the movement time until arrival at a floor at which an exclusive operation is started in addition to the above-described time.
In this case, the exclusive operation control means 5 performs services for some of the destination calls which have already been registered in a range not exceeding the prescribed threshold value and the movement to a floor at which an exclusive operation is started, and thereafter switches a subset of the elevators to exclusive operations. According to such a configuration, it becomes possible to positively prevent the start of an exclusive operation from delaying. - Incidentally, because there are also various kinds of exclusive operations, it is possible to appropriately adjust the switchover time to an exclusive operation by changing the above-described prescribed threshold value for each kind of exclusive operation. Concretely, the exclusive operation switchover device 8 is configured to send a switchover request which differs from one kind of exclusive operation to another. And a threshold value is individually set for each kind of switchover request and is caused to be stored in the threshold value storage means 10.
Also, for a similar reason, the switchover time to an exclusive operation may be adjusted for each user of exclusive operation, i.e., for each class or each priority of a user. In this case, the exclusive operation switchover device 8 is configured to send a switchover request which differs from one user of exclusive operation to another. And a threshold value is individually set for each switchovers request and is caused to be stored in the threshold value storage means 10. - The switchover time to an exclusive operation may be capable of being appropriately adjusted according to the degree of crowdedness of an elevator (for example, the number of passengers getting in and off and the number of calls). In this case, judgment means which judges the degree of crowdedness of elevators in group supervisory control becomes further necessary. And the above-described prescribed threshold value is individually set on the basis of the degree of crowdedness judged by this judgment means. If such a configuration is adopted, it becomes possible to positively prevent a decrease in the operation efficiency of the whole system.
Incidentally, a threshold value may also be set by a plurality of combinations of the above-described elements (kinds of exclusive operations, users of exclusive operation, the degree of crowdedness of elevators). According to such a configuration, it is possible to flexibly adapt to various kinds of elevators. - The elevator system related to the present invention can be applied to an elevator system which performs group supervisory control of a plurality of elevators and can switch a subset of the elevators to exclusive operations. When there are many elevator users, this elevator system provides especially effective means.
Claims (7)
- An elevator system which performs group supervisory control of a plurality of elevators, comprising:a call registration device with which an elevator user registers his or her destination floor before getting in a car;an exclusive operation switchover device which sends a switchover request in order to switch a subset of the plurality of elevators to exclusive operations;computation means which computes service time for destination calls which have already been registered by the call registration device regarding the subset of the elevators upon receipt of the switchover request from the exclusive operation switchover device; andexclusive operation control means which performs services for some of the destination calls in a range not exceeding a prescribed threshold value on the basis of service time computed by the computation means and switches the subset of the elevators to exclusive operations without performing services for the remaining destination calls.
- The elevator system according to claim 1, wherein the exclusive operation control means performs services for some of the destination calls which have already been registered and movement to a floor at which an exclusive operation is to be started in a range not exceeding the prescribed threshold value on the basis of service time computed by the computation means and movement time to the floor at which an exclusive operation is to be started, and switches the subset of the elevators to exclusive operations without performing services for the remaining destination calls.
- The elevator system according to claim 1 or 2, wherein the exclusive operation control means also performs services for the remaining destination calls which have already been registered before switching a subset of the elevators to exclusive operations in a case where services for the remaining destination calls are completed in a range not exceeding the prescribed threshold value.
- The elevator system according to any one of claims 1 to 3, wherein
the exclusive operation switchover device sends a switchover request which differs from one kind of exclusive operation to another; and
the prescribed threshold value is individually set for each switchover request. - The elevator system according to any one of claims 1 to 3, wherein
the exclusive operation switchover device sends a switchover request which differs from one user of exclusive operation to another; and
the prescribed threshold value is individually set for each switchover request. - The elevator system according to any one of claims 1 to 3, wherein
the elevator system further comprises judgment means which judges the degree of crowdedness of the elevators under group supervisory control; and
the prescribed threshold value is individually set on the basis of crowdedness judged by the judgment means. - The elevator system according to any one of claims 1 to 3, wherein the prescribed threshold value is individually set on the basis of at least two combinations of kinds of exclusive operations, users of exclusive operation and the degree of crowdedness of the elevators under group supervisory control.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/073717 WO2009072214A1 (en) | 2007-12-07 | 2007-12-07 | Elevator system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2216283A1 true EP2216283A1 (en) | 2010-08-11 |
EP2216283A4 EP2216283A4 (en) | 2013-11-06 |
EP2216283B1 EP2216283B1 (en) | 2019-06-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP07850295.2A Active EP2216283B1 (en) | 2007-12-07 | 2007-12-07 | Elevator system |
Country Status (4)
Country | Link |
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EP (1) | EP2216283B1 (en) |
JP (1) | JP5310561B2 (en) |
CN (1) | CN101878173B (en) |
WO (1) | WO2009072214A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10696516B2 (en) | 2015-03-26 | 2020-06-30 | Mitsubishi Electric Corporation | Elevator group management system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5844232B2 (en) * | 2012-09-07 | 2016-01-13 | 株式会社日立製作所 | Group management elevator system |
JP5951421B2 (en) * | 2012-09-10 | 2016-07-13 | 株式会社日立製作所 | Elevator group management system |
CN105873846A (en) * | 2014-09-20 | 2016-08-17 | 南宁马许科技有限公司 | Device for displaying the number of people waiting for elevator |
US10427909B2 (en) | 2015-06-19 | 2019-10-01 | Otis Elevator Company | User-controlled elevator allocation for independent service |
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JP2559424B2 (en) * | 1987-09-14 | 1996-12-04 | 株式会社日立製作所 | Elevator control equipment |
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JP3239587B2 (en) * | 1994-02-23 | 2001-12-17 | 三菱電機株式会社 | Elevator group management device |
JP3413022B2 (en) * | 1996-08-12 | 2003-06-03 | 株式会社東芝 | Elevator control device |
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- 2007-12-07 WO PCT/JP2007/073717 patent/WO2009072214A1/en active Application Filing
- 2007-12-07 EP EP07850295.2A patent/EP2216283B1/en active Active
- 2007-12-07 JP JP2009544547A patent/JP5310561B2/en not_active Expired - Fee Related
- 2007-12-07 CN CN200780101744.0A patent/CN101878173B/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN101878173B (en) | 2013-05-29 |
EP2216283A4 (en) | 2013-11-06 |
EP2216283B1 (en) | 2019-06-26 |
WO2009072214A1 (en) | 2009-06-11 |
JP5310561B2 (en) | 2013-10-09 |
CN101878173A (en) | 2010-11-03 |
JPWO2009072214A1 (en) | 2011-04-21 |
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