SG193706A1

SG193706A1 - Control apparatus of elevator

Info

Publication number: SG193706A1
Application number: SG2013011101A
Authority: SG
Inventors: Nakamura Yusuke
Original assignee: Toshiba Elevator Kk
Priority date: 2012-03-30
Filing date: 2013-02-14
Publication date: 2013-10-30
Also published as: CN103359570B; JP2013209210A; HK1185854A1; CN103359570A

Description

- 1 =

CONTROL APPARATUS OF ELEVATOR

FIELD

Embodiments described herein relate generally to a control apparatus of an elevator, which detects a rope swing due to a shake of a building by an earthquake or a strong wind, and executes switching to a control operation.

BACKGROUND

With an increase in height of a building, the characteristic frequency of the building lowers, and hence a resonance phenomenon tends to occur at a time of occurrence of an earthquake or a strong wind. In this case, if the characteristic frequency of the building coincides with the characteristic frequency of a rope of an elevator which is provided in an elevation shaft, the rope swings greatly due to resonance, and there is a concern that the rope may come in contact with some device in the elevation shaft or walls of the elevation shaft and a so-called “confinement accident” may occur. Incidentally, the rope of the elevator, in this context, refers to a main rope, a governor rope, etc.

To prevent such an accident, elevators in recent years include a safety apparatus called “control operation apparatus”. According to this technique, when a building shakes, the safety apparatus detects a rope swing due to the building shake, and when the amount of the rope swing exceeds a preset threshold, the elevator car is moved to an evacuation floor (non- resonance floor) and the operation service is suspended.

However, with an increase in height, buildings in recent years have structures which tend to shake.

Thus, if the building shakes, the control operation is started each time, and the operation service is hindered.

The object of the invention is to provide a control apparatus of an elevator, which can ensure safety and continue an operation service when a building shakes, without transitioning to the control operation as much as possible.

SUMMARY

According to an aspect of the present invention, there is provided a control apparatus of an elevator including a car which elevates via a rope disposed in an elevation shaft in a building, comprising: a building shake detection module configured to detect a shake of the building; a rope swing analysis module configured to analyze a relationship between a swing of the rope and a position of the car; a call registration controller configured to determine, when a building shake exceeding a reference level has been detected by the building shake detection module, a resonance floor at which a rope swing increases, based on an analysis result of the rope swing analysis module, and to prohibit call registration for the resonance floor; and an operation controller configured to control an operation of the car in a manner to move the car to a floor other than the resonance floor for which the call registration has been prohibited by the call registration controller.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exemplary view illustrating the structure of an elevator according to a first embodiment.

FIG. 2 is an exemplary block diagram illustrating the functional structure of a control apparatus of the elevator in the first embodiment.

FIG. 3 is an exemplary graph illustrating a relationship between a swing (maximum displacement) of a car—side main rope of the elevator and a car position in the first embodiment.

FIG. 4 is an exemplary graph illustrating a relationship between a swing (maximum displacement) of a counterweight-side main rope of the elevator and a car position in the first embodiment.

FIG. 5 is an exemplary graph illustrating a relationship between a swing (maximum displacement) of a car—side compensating rope of the elevator and a car position in the first embodiment.

FIG. 6 is an exemplary graph illustrating a relationship between a swing (maximum displacement) of a counterweight-side compensating rope of the elevator and a car position in the first embodiment.

FIG. 7 is an exemplary flowchart illustrating a process operation of the control apparatus of the elevator in the first embodiment.

FIG. 8 is an exemplary flowchart illustrating a process relating to a call registration prohibition control of a control apparatus of an elevator in a second embodiment.

FIG. 9 is an exemplary flowchart illustrating a process relating to a call registration prohibition control of a control apparatus of an elevator in a third embodiment.

FIG. 10 is an exemplary block diagram illustrating the functional configuration of a control apparatus of an elevator in a fourth embodiment.

FIG. 11 is an exemplary block diagram illustrating the functional configuration of a control apparatus of an elevator in a fifth embodiment.

DETAILED DESCRIPTION

Various embodiments will be described hereinafter with reference to the accompanying drawings. (First Embodiment)

FIG. 1 shows the structure of an elevator according to a first embodiment. The case is now assumed that an elevator 11 is disposed in a building

As shown in FIG. 1, a winder 12, which is a driving source of the elevator 11, is disposed in a machine room 10a at an uppermost part of the building 10. Incidentally, in a machine-room-less type elevator, the winder 12 is disposed at an upper part within an elevation shaft 10b. The machine-room-less type elevator is an elevator having no machine room.

A main rope 13 is wound around the winder 12. A car 14 is attached to one end portion of the main rope 13, and a counterweight 15 is attached to the other end portion of the main rope 13. In addition, a compensating sheave 16 is provided at a lowermost part of the elevation shaft 10b. Both end portions of a compensating rope 17 are attached via the compensating sheave 16 to a lower part of the car 14 and a lower part of the counterweight 15, respectively.

In addition, a car control device 18 is provided at an upper part of the car 14. When the car 14 arrives at any one of halls 2la, 21b, 21c¢,..., of respective floors, the car control device 18 controls opening/closing of a car door 19. Incidentally, the car control device 18 is connected to a control apparatus 22 (to be described later) via a transmission cable 20 which is called “tail cord”.

On the other hand, a control apparatus 22 for controlling the operation of the elevator 11 is disposed in the machine room 10a of the building 10 or in the elevation shaft 10b in the case of the machine- room-less type.

The control apparatus 22 is composed of a computer in which a CPU, a ROM, a RAM, etc. are mounted. The control apparatus 22 executes a series of processes relating to the operation control of the elevator 11, such as driving control of the winder 12. Furthermore, the control apparatus 22 includes a function of analyzing a swing of the rope, which is caused by a shake of the building 10 when the building 10 shakes due to an earthquake, a strong wind, etc., and a function of controlling hall call registration for a resonance floor, based on the result of the analysis.

The term “rope swing” refers to a swing of a rope in the horizontal direction, which is caused by a shake of the building 10. The “rope”, in this context, refers to ropes relating to the elevation operation of the car 14, the ropes including the compensating rope 17, as well as the main rope 13, in the example shown in FIG. 1.

An acceleration sensor 23, which functions as a building shake detection module for detecting a shake of the building 10 due to an earthquake, a strong wind, etc., 1s disposed near the upper part of the building 10. The acceleration sensor 23 is composed of a two- axis acceleration sensor which can detect accelerations

- 7 = in the horizontal directions (x direction and y direction) of a building, and outputs a detection signal thereof to the control apparatus 22.

FIG. 2 is a block diagram illustrating the functional structure of the control apparatus 22 of the elevator in the first embodiment.

As shown in FIG. 2, the control apparatus 22 includes a rope swing analysis module 31, a call registration controller 32, an operation controller 33 and a notification module 34.

The rope swing analysis module 31 analyzes a relationship between a rope swing caused by a shake of the building 10 and the position of the car 14, and stores in a table 3la data obtained as the analysis result, which relates to a resonance floor (a floor at which the rope greatly swings due to a resonance phenomenon) and the amount of a rope swing at the resonance floor.

The call registration controller 32 determines the resonance floor by referring to the table 3la obtained as the analysis result of the rope swing analysis module 31, when a shake of the building 10 exceeding a reference level has been detected by the acceleration sensor 23, and prohibits call registration (registration of a car call/hall call) for the resonance floor.

The operation controller 33 controls the operation of the car 14 so that the car 14 may move to a floor other than the resonance floor for which the call registration has been prohibited by the call registration controller 32.

When the call registration for the resonance floor has been prohibited by the call registration controller 32, the notification module 34 notifies this fact to the inside of the car 14 or to the halls 21a, 21b, 21c,..., of the respective floors. A concrete example of the method of notification is display or a speech announcement. Incidentally, both the display and speech announcement may be used for the notification.

In the present embodiment, the case in which notification is made by display is described by way of example.

In the car 14, destination floor buttons 41 corresponding to the respective floors and a display 42 are provided. If a destination floor of a user is designated by the operation of the destination floor button 41, the designated destination floor is notified to the control apparatus 22 as a car call. Upon receiving the car call, the control apparatus 22 moves the car 14 to the floor designated by the user.

The display 42 displays, for example, a present position of the car 14 and an operation direction of the car 14. In addition, the display 42 displays information relating to a call registration prohibition floor notified by the notification module 34.

Besides, the hall 21a, 21b, 21c¢,..., of each floor is provided with hall call buttons 43 and a display 44.

If a hall call (destination direction) is registered by the operation of the hall call button 43, the hall call is sent to the control apparatus 22. Upon receiving the hall call, the control apparatus 22 moves the car 14 to the floor for which the hall call has been registered.

The display 44 displays, for example, a present position of the car 14 and an operation direction of the car 14. In addition, the display 44 displays information relating to a call registration prohibition floor notified by the notification module 34.

Next, the relationship between a rope swing and a car position is explained.

The “rope” refers to the main rope 13 and compensating rope 17. Specifically, the main rope 13 is divided into a main rope 13a which is attached to the car 14, and a main rope 13b which is attached to the counterweight 15. The compensating rope 17 is divided into a compensating rope 17a which is attached to the car 14, and a compensating rope 17b which is attached to the counterweight 15.

The lengths of the ropes 13a, 13b, 17a and 17b vary depending on the position of the car 14. For example, paying attention to the main rope 13, when the

- 10 = car 14 is at the lowermost floor, the main rope 13a on the car 14 side becomes longest. Conversely, the main rope 13b on the counterweight 15 side becomes shortest.

The rope swing analysis module 31, which is provided in the control apparatus 22, monitors the ropes 13a, 13b, 17a and 17b as monitor targets, and analyzes, by using a predetermined function expression, at which floor the car 14 exists when the amount of the swing is greatest. The table 3la stores data which is obtained from the analysis result with respect to a resonance floor and the amount of a rope swing at the resonance floor.

FIG. 3, FIG. 4, FIG. 5 and FIG. 6 show examples of results of analysis of the relationship between the rope swing and the car position, with respect to the ropes 13a, 13b, 17a and 17b.

FIG. 3 is a graph illustrating a relationship between a swing (maximum displacement) of the main rope 13a on the car 14 side and the car position. FIG. 4 is a graph illustrating a relationship between a swing (maximum displacement) of the main rope 13b on the counterweight 15 side and the car position.

The main rope 13a on the car 14 side has such characteristics that the main rope 13a swings to a maximum degree when the car 14 is near the lowermost floor. Accordingly, a floor near the lowermost floor is stored in the table 3la as a resonance floor of the

- 11 = rope 13a.

On the other hand, the main rope 13b on the counterweight 15 side has such characteristics that the main rope 13b swings to a maximum degree when the car 14 is near the uppermost floor. Accordingly, a floor near the uppermost floor is stored in the table 3la as a resonance floor of the rope 13b.

FIG. 5 is a graph illustrating a relationship between a swing (maximum displacement) of the compensating rope 17a on the car 14 side and the car position. FIG. 6 is a graph illustrating a relationship between a swing (maximum displacement) of the compensating rope 17b on the counterweight 15 side and the car position.

The compensating rope 17a on the car 14 side has such characteristics that the compensating rope 17a swings to a maximum degree when the car 14 is at a floor slightly above a middle floor. Accordingly, the floor above the middle floor is stored in the table 3la as a resonance floor of the rope 17a.

On the other hand, the compensating rope 17b on the counterweight 15 side has such characteristics that the compensating rope 17b swings to a maximum degree when the car 14 is at a floor slightly below the middle floor. Accordingly, the floor below the middle floor is stored in the table 3la as a resonance floor of the rope 17b.

- 12 =

FIG. 3 to FIG. 6 illustrate examples in the case where the building 10 shakes with a fixed shake amount.

As the shake amount of the building 10 becomes greater, the swing amount of the rope 13a, 13b, 17a, 17b increases in proportion. In addition, since a concrete method of calculating the swing amount of the rope 13a, 13b, 17a, 17b from the shake amount of the building 10 is publicly known, a detailed description of the method is omitted here.

Next, the operation of the first embodiment is described.

FIG. 7 is a flowchart illustrating a process operation of the control apparatus 22 of the elevator in the first embodiment.

If the building 10 shakes due to an earthquake or a strong wind, an acceleration signal corresponding to the shake amount of the building 10 is output from the acceleration sensor 23, which is disposed in the machine room 10a, to the control apparatus 22. The control apparatus 22 determines the level of the building shake from this acceleration signal.

If the building shake is not greater than a reference level which is preset in consideration of safety (No in step S101), the control apparatus 22 continues a normal operation (step $5102). The “normal operation” in this content refers to an operation in which an operation service is performed as usual for

- 13 = all floors.

On the other hand, if the building shake, which is greater than the reference level, is detected (Yes in step S101), the control apparatus 22 first determines resonance floors, based on an analysis result of the rope swing analysis module 31 (step S103).

Specifically, referring to the table 3la obtained as the analysis result of the rope swing analysis module 31, the control apparatus 22 extracts, as resonance floors, floors at which the ropes 13a, 13b, 17a and 17b swing greatly due to a resonance phenomenon by the shake of the building 10.

Then, the control apparatus 22 prohibits call registration for these resonance floors (step S104).

At this time, the control apparatus 22 notifies through the display 42 in the car 14 that call registration has been prohibited, and also notifies through the displays 44 disposed on the halls 21a, 21b, 21c¢,..., of the respective floors that call registration has been prohibited (step S105).

Thereafter, the control apparatus 22 controls the operation of the car 14 so that the car 14 may not move to the resonance floors for which call registration has been prohibited (step S106).

For example, when a first floor, a tenth floor, a 20th floor and a 30th floor are resonance floors and call registration for these resonance floors has been prohibited, the car 14 is moved to a floor other than the first floor, tenth floor, 20th floor and 30th floor, and the operation service is continued. In the meantime, even 1f a resonance floor exists while the car 14 is moving, the car 14 quickly passes by this resonance floor, and thus the rope does not greatly swing due to a resonance phenomenon.

In this manner, until the shake of the building 10 attenuates to the reference level or less, the operation is performed while call registration for resonance floors is prohibited. Then, if the shake of the building 10 has attenuated to the reference level or less (Yes in step S107), the control apparatus 22 releases the prohibition of call registration and restores to the normal operation (step 5108).

In the meantime, in the case where the control apparatus 22 includes a function of detecting a rope swing due to the shake of the building 10, it is desirable to restore to the normal operation after confirming in step S107 that the swing of the rope, as well as the shake of the building 10, has attenuated to the reference level or less.

As described above, according to the first embodiment, when the building shake has exceeded the reference level, the call registration for resonance floors, at which the swing of the rope increases, is prohibited and the operation is performed. Thereby,

for example, in a skyscraper building, even if a building shake frequently occurs, the operation service can be continued while safety is ensured, without transitioning to the control operation as much as possible. (Second Embodiment)

Next, a second embodiment is described.

In the second embodiment, the number of resonance floors, for which call registration is prohibited, is varied stepwise in accordance with the level of the building shake.

In the meantime, since the basic structure of the control apparatus 22 is the same as that in the first embodiment, the process operation will be described below with reference to FIG. 8.

FIG. 8 is a flowchart illustrating a process relating to a call registration prohibition control of the control apparatus 22 of the elevator in the second embodiment. The process illustrated in this flowchart is executed in step S104 in FIG. 7.

Specifically, when the shake of the building 10 has exceeded the reference level, the control apparatus 22 determines resonance floors, based on the analysis result of the rope swing analysis module 31, and prohibits call registration for the resonance floors.

At this time, if the level of the building shake is within a first set range (e.g. a range of 0.5 gal to

- 16 —= 1 gal (Yes in step S201), the control apparatus 22 prohibits call registration for a resonance floor at which the rope swing is greatest (step S202).

For example, paying attention to the main rope 13a on the car 14 side, if the rope swing is greatest when the car 14 is at the first floor, the control apparatus 22 sets the first floor as a target floor of call registration prohibition.

In addition, when the level of the building shake is within a second set range (e.g. a range of 1 gal to 2 gal ) (Yes in step $5203), the control apparatus 22 prohibits, in addition to call registration for the resonance floor at which the rope swing is greatest, call registration for a resonance floor at which the rope swing is second greatest (step S204).

For example, paying attention to the main rope 13a on the car 14 side, if the rope swing is greatest when the car 14 is at the first floor and the rope swing is second greatest when the car 14 is at a first basement (Bl) floor, the control apparatus 22 sets the first floor and the first basement (Bl) floor as target floors of call registration prohibition.

The subsequent process is the same as in the first embodiment. The control apparatus 22 notifies the resonance floors, for which the call registration has been prohibited, to the inside of the car 14 and the halls 21a, 21b, 21c¢,..., of the respective floors, and

- 17 = moves the car 14 to a floor other than the resonance floors and continues the operation.

On the other hand, if the level of the building shake exceeds the second set range (No in step S203), the control apparatus 22 executes switching to the control operation, and suspends the operation after moving the car 14 to an evacuation floor (non-resonance floor) and making passengers get out of the car 14 (step S205).

In the description of the example of FIG. 8, the level of the building shake is divided into two levels.

Alternatively, the level of the building shake may be divided into a greater number of levels, and the number of resonance floors, which are targets of call registration prohibition, may be varied stepwise.

As has been described above, according to the second embodiment, the number of resonance floors, for which call registration is prohibited, is varied stepwise in accordance with the level of the building shake. Thereby, when the level of the building shake is low, the number of floors, which are call registration prohibition targets, is decreased and the degradation in operation service can be suppressed as much as possible. In addition, when the level of the building shake is high, the number of floors, which are call registration prohibition targets, is increased, and the operation service can be continued while safety

- 18 = is ensured. (Third Embodiment)

Next, a third embodiment is described.

The third embodiment relates to a measure in the case where a call for a resonance floor has already been registered when call registration for this resonance floor is to be prohibited.

In the meantime, since the basic structure of the control apparatus 22 is the same as that in the first embodiment, the process operation will be described below with reference to FIG. 9.

FIG. 9 is a flowchart illustrating a process relating to a call registration prohibition control of the control apparatus 22 of the elevator in the third embodiment. The process illustrated in this flowchart is executed in step S104 in FIG. 7.

Specifically, when the shake of the building 10 has exceeded the reference level, the control apparatus 22 determines resonance floors, based on the analysis result of the rope swing analysis module 31, and prohibits call registration for the resonance floors (step S301).

In this case, if calls have already been registered for the resonance floors for which the call registration is prohibited (step $302), the control apparatus 22 clears call registrations for the resonance floors, excluding the resonance floor which is closest to the car 14 (step S303).

For example, assume that a first floor, a tenth floor, a 20th floor and a 30th floor exist as resonance floors and call registration for these resonance floors has been prohibited. In this case, if calls for the 20th floor and 30th floor have already been registered and the car 14 is near the 20th floor, the car 14 responds to only the call for the 20th floor, and the registration of the call for the 30th floor is cleared.

In the meantime, in the case where the rope swings to a degree greater than a predetermined amount when the car 14 has responded to the 20th floor, switching is immediately executed to the control operation.

As has been described above, according to the third embodiment, when calls for resonance floors, for which call registration is to be prohibited, have already been registered, only the call registration for the resonance floor, to which the car 14 can respond immediately, is left, and the call registrations for the other resonance floors are canceled. Thereby, the operation service can be continued, without transitioning to the control operation as much as possible. (Fourth Embodiment)

Next, a fourth embodiment is described.

In the first embodiment, when a building shake exceeding the reference level has been detected, call

- 20 = registration for resonance floors is immediately prohibited. However, if the duration of the building shake is short and the building shake attenuates in a short time, it can be estimated that the rope swing does not become large. Thus, in the fourth embodiment, the call registration prohibition control is executed in consideration of the duration of the building shake.

FIG. 10 is a block diagram illustrating the functional configuration of the control apparatus 22 of the elevator in the fourth embodiment. The same components as those in FIG. 2 in the first embodiment are denoted by like reference numerals, and a description thereof is omitted.

In the fourth embodiment, the control apparatus 22 includes a timer 35. The timer 35 is used as a measuring module for measuring the duration of a building shake.

In this structure, when the acceleration sensor 23 has detected a building shake exceeding the reference level, the control apparatus 22 starts the timer 35 to measure the duration of the building shake. If the building shake has continued for a fixed time period or more, the control apparatus 22 prohibits call registration for resonance floors and performs an operation, in the same manner as in the first embodiment (see steps S103 to S106 in FIG. 7).

As has been described in connection with the

- 21 = second embodiment, when call registration for resonance floors is prohibited, the number of resonance floors may be varied stepwise in accordance with the level of the building shake. In addition, as has been described in connection with the third embodiment, when calls for resonance floors, for which call registration is to be prohibited, have already been registered, only the call registration for the resonance floor, to which the car 14 can respond immediately, may be left, and the call registrations for the other resonance floors may be canceled.

As has been described above, according to the fourth embodiment, the call registration prohibition control is executed in consideration of the duration of the building shake. Thereby, call registration for resonance floors is not carelessly prohibited in response to a short-time building shake which does not affect a rope swing, and the operation service can be continued. (Fifth Embodiment)

Next, a fifth embodiment is described.

In the structure of the first embodiment, call registration for resonance floors is prohibited and controlled in consideration of only the amount of the shake of the building 10. On the other hand, in the fifth embodiment, the swing amount of the rope in relation to the building shake is estimated, and the call registration for resonance floors is prohibited and controlled, based on the estimated swing amount of the rope.

FIG. 11 is a block diagram illustrating the functional configuration of the control apparatus 22 of the elevator in the fifth embodiment. The same components as those in FIG. 2 in the first embodiment are denoted by like reference numerals, and a description thereof is omitted.

In the fifth embodiment, the control apparatus 22 includes a rope swing estimation module 36. The rope swing estimation module 36 estimates a swing amount of the rope, based on the shake amount of the building 10, which is detected by the acceleration sensor 23, and the present car position.

The present car position can be detected, for example, from a pulse signal which is output, in synchronism with the rotation of the winder 12, from a pulse generator (not shown) which is attached to a rotation shaft of the winder 12. The swing amount of the rope can be calculated by using a predetermined function expression. Since a concrete method of calculating the swing amount is publicly known, a detailed description of the method is omitted here.

In the above structure, if the building 10 shakes, the rope swing estimation module 36 estimates the swing amount of the rope, based on the shake amount of the building 10 and the present car position.

Specifically, the swing amount of each of the ropes 13a, 13b, 17a and 17b in relation to the present building shake is found by calculations.

The call registration controller 32 determines danger when the swing amount of the rope, which has been estimated by the rope swing estimation module 36, exceeds a preset level, and prohibits call registration for resonance floors by referring to the table 3la obtained as the analysis result of the rope swing analysis module 31. The subsequent process is the same as in the first embodiment.

As has been described in connection with the second embodiment, when call registration for resonance floors is prohibited, the number of resonance floors may be varied stepwise in accordance with the level of the building shake. In addition, as has been described in connection with the third embodiment, when calls for resonance floors, for which call registration is to be prohibited, have already been registered, only the call registration for the resonance floor, to which the car 14 can respond immediately, may be left, and the call registrations for the other resonance floors may be canceled.

As has been described above, according to the fifth embodiment, the function of estimating the swing amount of the rope in relation to a building shake is provided. Thereby, the call registration for resonance floors can be prohibited based on the swing amount of the rope, and the operation service can be continued with higher safety.

According to at least one of the above-described embodiments, there can be provided a control apparatus of an elevator, which can ensure safety and continue an operation service when a building has shaken, without transitioning to a control operation as much as possible.

While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Indeed, the novel embodiments described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the embodiments described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the inventions.

Claims

WHAT IS CLAIMED IS:

1. A control apparatus of an elevator including a car which elevates via a rope disposed in an elevation shaft in a building, comprising: a building shake detection module configured to detect a shake of the building; a rope swing analysis module configured to analyze a relationship between a swing of the rope and a position of the car; a call registration controller configured to determine, when a building shake exceeding a reference level has been detected by the building shake detection module, a resonance floor at which a rope swing increases, based on an analysis result of the rope swing analysis module, and to prohibit call registration for the resonance floor; and an operation controller configured to control an operation of the car in a manner to move the car to a floor other than the resonance floor for which the call registration has been prohibited by the call registration controller.

2. The control apparatus of the elevator of Claim 1, wherein the call registration controller is configured to stepwise vary a number of resonance floors for which the call registration is prohibited, in accordance with a level of the building shake.

3. The control apparatus of the elevator of

Claim 1, wherein the call registration controller is configured to respond to only a resonance floor which is closest to the car, when calls for resonance floors have already been registered, and to cancel call registrations for the other resonance floors.

4. The control apparatus of the elevator of Claim 1, further comprising a measuring module configured to measure, when the building shake exceeding the reference level has been detected by the building shake detection module, a duration of the building shake, wherein the call registration controller is configured to determine, when the duration measured by the measuring module is a predetermined time or more, a resonance floor based on the analysis result of the rope swing analysis module, and to prohibit call registration for the resonance floor.

5. The control apparatus of the elevator of Claim 1, further comprising a notification module configured to notify, when the call registration for the resonance floor has been prohibited by the call registration controller, the prohibition of the call registration to an inside of the car or to halls of respective floors.

6. The control apparatus of the elevator of Claim 1, further comprising a rope swing estimation module configured to estimate a swing amount of the rope, based on the shake amount of the building, which is detected by the building shake detection module, and the position of the car, wherein the call registration controller is configured to prohibit call registration for the resonance floor, based on the swing amount of the rope estimated by the rope swing estimation module.