JP2013209209A - Controller of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely enable the continuation of an operation service while preventing an increase in a swing of a rope without shifting to an emergency operation if a building quakes.SOLUTION: A controller 22 of an elevator includes a member 31 estimating a swing of a rope to estimate an amount of a swing of a rope based on an amount of a quake of a building detected by an acceleration sensor 23 and on the position of a car 14, a damping-floor setting member 32a setting a floor capable of damping the swing of the rope when the amount of the swing of the rope is equal to or larger than a prescribed amount as a damping floor, and an operation control member 32 allowing the car 14 to travel to an intended floor subsequent to the carrying-out of a rope-damping operation of moving the car 14 to the damping floor if the damping floor set by the damping-floor setting member 32a is present in the traveling direction of the car 14.

Description

  Embodiments described herein relate generally to an elevator control device that detects a rope shake accompanying a shaking of a building due to an earthquake, a strong wind, or the like and switches to a control operation.

  When a building is made taller, the natural frequency of the building decreases, so that resonance phenomenon is likely to occur during an earthquake or a strong wind. Here, if the natural frequency of the building matches the natural frequency of the elevator rope (main rope, governor rope, etc.) installed in the hoistway, the rope will shake greatly due to resonance, and the equipment in the hoistway and the elevator There is a risk of contact with the road wall and a so-called “confinement accident”.

  In order to prevent such an accident, recent elevators are equipped with a safety device called a “control operation device”. This means that when a building shakes, it detects a rope runout associated with the building shake and moves the car to a evacuation floor (non-resonant floor) if the runout is greater than a preset threshold. Is a technology to pause.

JP 2008-285334 A JP 2008-74536 A JP 2007-131360 A

  However, with the recent increase in the number of buildings, the structure is prone to shake. For this reason, whenever a building shakes due to wind or the like, the control operation is activated and the driving service is hindered. In this case, if the threshold value of the control operation is lowered, the rope runout increases and there is a risk of contact with equipment in the hoistway and hoistway walls. Further, if the operation is continued with the rope swinging, the car may vibrate and noise may be generated.

  The problem to be solved by the present invention is to prevent an increase in rope swing when the building is shaken, and to continue the driving service safely without shifting to the control operation. Also, the vibration and noise of the car accompanying the rope swing It is providing the control apparatus of the elevator which can prevent.

  The elevator control device according to the present embodiment includes an elevator control device including a car that moves up and down via a rope installed in a hoistway of the building, and a building shake detection unit that detects the shake of the building. A rope swing estimation means for estimating the swing amount of the rope based on the swing amount of the building detected by the building swing detection means and the position of the car, and the rope swing estimated by the rope swing estimation means Attenuation floor setting means for setting, as an attenuation floor, a floor capable of attenuating the swing of the rope when the deflection amount is not less than a predetermined amount, and the attenuation floor set by the attenuation floor setting means When the vehicle is in the direction of travel of the car, after the rope is dampened to move the car to the attenuation floor, the car is driven to the destination floor. ; And a control means.

FIG. 1 is a diagram illustrating a configuration of an elevator according to the first embodiment. FIG. 2 is a block diagram showing a functional configuration of the elevator control device according to the embodiment. FIG. 3 is a diagram showing the relationship between the main rope runout (maximum displacement) on the elevator car side and the car position in the same embodiment. FIG. 4 is a view showing the relationship between the swing (maximum displacement) of the main rope on the counterweight side of the elevator and the car position in the same embodiment. FIG. 5 is a diagram showing the relationship between the deflection (maximum displacement) of the elevator rope and the car position on the elevator car side in the same embodiment. FIG. 6 is a diagram showing the relationship between the deflection (maximum displacement) of the compensation rope on the counterweight side of the elevator and the car position in the same embodiment. FIG. 7 is a flowchart showing the processing operation of the elevator control apparatus according to the embodiment. FIG. 8 is a diagram illustrating an example of a rope damping operation of the elevator control device according to the embodiment. FIG. 9 is a diagram illustrating an example of a rope damping operation of the elevator control device according to the embodiment. FIG. 10 is a flowchart showing the processing operation of the elevator control apparatus according to the second embodiment. FIG. 11 is a diagram illustrating an example of a rope damping operation of the elevator control device according to the embodiment. FIG. 12 is a flowchart showing a part of the processing operation of the elevator control apparatus according to the third embodiment. FIG. 13 is a block diagram illustrating a functional configuration of an elevator control device according to the fourth embodiment. FIG. 14 is a flowchart showing the processing operation of the elevator control apparatus according to the embodiment.

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

(First embodiment)
FIG. 1 is a diagram illustrating a configuration of an elevator according to the first embodiment. Assume that one elevator 11 is installed in a building 10.

  As shown in FIG. 1, a hoisting machine 12 that is a drive source of the elevator 11 is installed in the uppermost machine room 10 a of the building 10. In the machine roomless type elevator, the hoisting machine 12 is installed in the upper part of the hoistway 10b.

  A main rope 13 is wound around the hoisting machine 12. One end of the main rope 13 is attached to a car 14 and the other end is attached to a counterweight 15. A compensatory 16 is disposed at the lowermost part of the hoistway 10 b, and the end of the compensatory rope 17 is attached to the lower part of the car 14 and the counterweight 15 via the compensatory 16.

  Further, a car control device 18 is provided above the car 14, and controls the opening and closing of the car door 19 when the car 14 is landed on any one of the landings 21a, 21b, 21c. The car control device 18 is connected to a control device 22 (to be described later) through a transmission cable 20 called a tail cord.

  On the other hand, in the machine room 10a or the machine room-less type of the building 10, a control device 22 for controlling the operation of the elevator 11 is installed in the hoistway 10b.

  The control device 22 includes a computer equipped with a CPU, ROM, RAM, and the like, and executes a series of processes relating to operation control of the elevator 11 such as drive control of the hoisting machine 12. In addition, when the building 10 is shaken due to an earthquake, strong wind, or the like, the control device 22 controls the operation of the car 14 based on a function for estimating the swing of the rope accompanying the shaking of the building 10 and the estimation result. It has functions.

  The “rope swing” means that the rope swings in the horizontal direction when the building 10 swings. In addition, the “rope” referred to here is a rope related to the raising / lowering operation of the car 14, and includes a compen- sion rope 17 in addition to the main rope 13 in the example of FIG. 1.

  Here, an acceleration sensor 23 for detecting the shaking of the building 10 due to an earthquake or a strong wind is installed near the top of the building 10. The acceleration sensor 23 is a biaxial acceleration sensor that can detect the acceleration in the horizontal direction (x direction and y direction) of the building, and outputs a detection signal to the control device 22.

  FIG. 2 is a block diagram illustrating a functional configuration of the elevator control device 22 according to the first embodiment.

  As illustrated in FIG. 2, the control device 22 includes a rope runout estimation 31, an operation control unit 32, and a notification unit 33.

  The rope shake estimation unit 31 estimates the rope shake amount based on the shaking amount of the building 10 and the position of the car 14 detected by the acceleration sensor 23. The car position can be detected from a pulse signal output in synchronization with the rotation of the hoisting machine 12 from a pulse generator (not shown) attached to the rotating shaft of the hoisting machine 12. The runout amount of the rope can be obtained by calculation using a predetermined function formula. In addition, since the specific calculation method is well-known, the detailed description shall be abbreviate | omitted here.

  The operation control unit 32 controls the operation of the car 14 based on the amount of rope deflection estimated by the rope deflection estimation unit 31. The operation control unit 32 includes an attenuation floor setting unit 32a. The attenuation floor setting unit 32a sets, as the attenuation floor, a floor capable of attenuating the rope swing when the rope swing amount is equal to or greater than a predetermined amount defined as a control operation determination criterion.

  When the damping floor set by the damping floor setting unit 32a exists in the traveling direction of the car 14, the operation control unit 32 performs a rope damping operation for moving the car 14 to the damping floor, and then the car 14 Drive to the destination floor. The “destination floor” as used herein refers to a floor on which the car 14 responds to a call (to a hall call / car call).

  The notification unit 33 notifies the passengers in the car 14 that the rope attenuation operation is being performed. Specifically, the notification method is a voice announcement or a display message. In addition, you may alert | report using both a voice announcement and a display message. In the present embodiment, a case where notification is given by voice announcement will be described as an example.

  In the car 14, a destination floor button 41, a door open button 42a, a door close button 42b, and a speaker 43 corresponding to each floor are provided. When the user's destination floor is designated by operating the destination floor button 41, the designated destination floor is sent to the control device 22 as a car call. When receiving the car call, the control device 22 moves the car 14 to the floor designated by the user.

  The door opening button 42a is an operation button for the passenger to instruct to open the door, and the door closing button 42b is an operation button for the passenger to instruct to close the door. In addition, the speaker 43 outputs a sound indicating that the car 14 is performing a rope attenuation operation on the attenuation floor.

  In addition, hall call buttons (not shown) are provided at the halls 21a, 21b, 21c. When a hall call (destination direction) is registered by operating the hall call button, the hall call is sent to the control device 22. When receiving the hall call, the control device 22 moves the car 14 to the floor where the hall call is registered.

  Here, the relationship between the rope runout and the car position will be described.

  “Rope” refers to the main rope 13 and the compen- sion rope 17. Specifically, the main rope 13 is divided into a main rope 13a attached to the car 14 side and a main rope 13b attached to the counterweight 15 side. The compensation rope 17 is divided into a compensation rope 17a attached to the car 14 side and a compensation rope 17b attached to the counterweight 15 side.

  The lengths of these ropes 13a, 13b, 17a, 17b vary depending on the position of the car 14. For example, focusing on the main rope 13, when the car 14 is on the lowest floor, the main rope 13a on the car 14 side is the longest, and conversely, the main rope 13b on the counterweight 15 side is the shortest.

  The rope shake estimation unit 31 provided in the control device 22 analyzes the relationship between the rope shake and the car position with respect to the building shake using a predetermined function formula with these ropes 13a, 13b, 17a, and 17b being monitored. .

  Here, FIG. 3 to FIG. 6 show examples of the results of analyzing the relationship between the rope swing and the car position for the ropes 13a, 13b, 17a, and 17b.

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

  The main rope 13a on the side of the car 14 has the characteristic that the car 14 swings most near the lowermost floor, and there is little swing from the central floor toward the uppermost floor. On the other hand, the main rope 13b on the counterweight 15 side has a characteristic that the car 14 swings most in the vicinity of the top floor, and there is little swing from the center floor to the vicinity of the bottom floor.

  FIG. 5 is a diagram showing the relationship between the deflection (maximum displacement) of the compen- sion rope 17a on the car 14 side and the car position. FIG. 6 is a diagram showing the relationship between the deflection (maximum displacement) of the compen- sion rope 17b on the counterweight 15 side and the car position.

  The compen- sion rope 17a on the side of the car 14 has a characteristic that the car 14 swings most greatly on a floor slightly above the center floor, and there is little swing from the center floor toward the lower side. On the other hand, the compen- sion rope 17b on the counterweight 15 side has a characteristic that the car 14 swings most greatly on the floor slightly below the center floor, and the swing is small from the center floor upward.

  3 to 6 show an example in which the building 10 has a certain amount of shaking, and the amount of shaking of the ropes 13a, 13b, 17a, and 17b is proportional as the amount of shaking of the building 10 increases. And get bigger. Moreover, since the specific method of calculating | requiring the swing amount of rope 13a, 13b, 17a, 17b from the swing amount of the building 10 is well-known, the detailed description shall be abbreviate | omitted.

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

  FIG. 7 is a flowchart showing the processing operation of the elevator control device 22 according to the first embodiment.

  When the building 10 shakes due to an earthquake or a strong wind, an acceleration signal corresponding to the amount of shaking of the building 10 is output to the control device 22 from the acceleration sensor 23 installed in the machine room 10a. When the swing of the building 10 is detected (Yes in step S101), the rope swing estimation unit 31 provided in the control device 22 performs the rope based on the swing amount of the building 10 obtained from the acceleration signal and the current car position. Is estimated (step S102). Specifically, for each of the ropes 13a, 13b, 17a, and 17b, the rope swing amount with respect to the swing amount of the building 10 is obtained using a predetermined function formula.

  The amount of rope deflection estimated by the rope deflection estimation unit 31 is given to the operation control unit 32. When the amount of swing of the rope is equal to or greater than the predetermined amount (Yes in step S103), the operation control unit 32 sets the floor that can attenuate the swing of the rope through the attenuation floor setting unit 32a as the attenuation floor ( Step S104).

  In this case, the attenuation floor setting unit 32a sets a floor with less rope swing as an attenuation floor based on the analysis result of the rope swing characteristic of the rope swing estimation unit 31. That is, as shown in FIGS. 3 and 4, in the main rope 13a on the car 14 side, there is little swing from the central floor to the vicinity of the top floor, and in the main rope 13b on the counterweight 15 side, There is little run-out from to the bottom floor. Further, as shown in FIGS. 5 and 6, if the compen- sion rope 17a is on the side of the car 14, there is little fluctuation from the central floor to the lower side, and if the compen- sion rope 17b is on the counterweight 15 side, There is little swing from the floor to the upper side.

  The attenuation floor is obtained from the result of comprehensive analysis of the swing characteristics of these ropes 13a, 13b, 17a, 17b. Generally, since the ropes 13a, 13b, 17a, and 17b have little swing near the center of the building 10, the floor near the center is set as one of the most effective attenuation floors. The attenuation floor is also called a “non-resonant floor”, and is a floor where no resonance phenomenon occurs, and is used as a “evacuation floor” for retracting the car 14.

  Here, when the car 14 is traveling in response to a call (a landing call / car call) (Yes in Step S105), if an attenuation floor is set in the traveling direction (Yes in Step S106). ), The operation control unit 32 moves the car 14 to the attenuation floor, stops the door there, and waits for the rope runout to converge (step S107). This operation is called “rope damping operation”.

FIG. 8 shows an example of rope attenuation operation.
For example, in the building 10 on the 1st to 60th floors, it is assumed that the destination floor of the car 14 is the 60th floor and is currently traveling upward in the vicinity of the 15th floor. Here, if the 30th floor is set as an attenuation floor during traveling, the car 14 is closed on the 30th floor and the rope waits for the swing of the rope to attenuate. In this case, the passenger is not dropped off on the 30th floor, but is simply waiting in a door-closed state.

  At this time, the notification unit 33 provided in the control device 22 is activated, and for example, “Please wait for a while because a building shake has been detected.” Are output from the speaker 43 (step S108). If the rope swing converges and becomes less than the predetermined amount while the car 14 is waiting on the attenuation floor (Yes in step S109), the operation control unit 32 restarts the operation of the car 14 and the attenuation floor. To the destination floor (step S110).

  If a plurality of attenuation floors are set in step S104, the rope attenuation operation is performed by selecting the attenuation floor that is most effective for attenuating the rope swing. That is, when divided into a main rope 13a on the car 14 side, a main rope 13b on the counterweight 15 side, a compen- sion rope 17a on the car 14 side, and a compen- sion rope 17b on the counterweight 15 side, The attenuation floor effective for the ropes 13a, 13b, 17a, and 17b has the highest priority.

  If there is no effective attenuation floor in the ropes 13a, 13b, 17a, and 17b in the traveling direction of the car 14, the main rope 13a on the side of the car 14 generally has a large deflection, so that the attenuation floor can suppress the fluctuation. Subsequently, it is preferable to select the attenuation floor in the order of the main rope 13b on the counterweight 15 side, the compen- sion rope 17a on the car 14 side, and the compen- sion rope 17b on the counterweight 15 side.

FIG. 9 shows an example when a plurality of attenuation floors are set.
For example, in the building 10 on the 1st to 60th floors, it is assumed that the destination floor of the car 14 is the 60th floor and is currently traveling upward in the vicinity of the 15th floor. Here, it is assumed that the 30th floor and the 45th floor are set as attenuation floors during traveling. Here, if the 30th floor is effective for the swing of the ropes 13a, 13b, 17a, 17b, the car 14 is closed at the 30th floor, and it waits for the swing of the rope to attenuate.

  In step S107, the car 14 is closed at the attenuation floor, but it is not always necessary to stop at the attenuation floor. That is, although it depends on the swinging state of the rope, as long as the swinging of the rope is likely to converge immediately, the vehicle may be driven at a lower speed than the normal speed so as to pass slowly through the attenuation floor.

  In step S109, the operation of the car 14 is resumed after confirming that the rope runout has converged. However, after a certain period of time, the ride of the car 14 is assumed to have converged. It may be resumed.

  As described above, according to the first embodiment, when the building 10 is shaken and the rope swings more than a predetermined amount, the cage 14 is moved to the attenuation floor, thereby increasing the rope swing due to the resonance phenomenon. It is possible to continue the driving service safely without shifting to the control operation. In addition, since the operation is resumed after the rope runout is converged, it is possible to prevent the vibration and noise of the car accompanying the rope runout.

(Second Embodiment)
Next, a second embodiment will be described.

  In the first embodiment, the case where an attenuation floor is present in the traveling direction of the car 14 has been described. However, depending on the position of the traveling car 14 that is traveling, the attenuation floor is not necessarily present in the traveling direction. Not exclusively. Therefore, in the second embodiment, a case where there is no attenuation floor in the traveling direction of the car 14 will be described.

  Since the basic configuration of the control device 22 is the same as that of the first embodiment, the processing operation will be described here with reference to FIG.

  FIG. 10 is a flowchart showing the processing operation of the elevator control device 22 in the second embodiment. Note that the processing from step S201 to S206 is the same as the processing from step S101 to S106 in FIG. 7 in the first embodiment.

  That is, when the swing of the building 10 is detected and the amount of rope swing associated with the building swing is equal to or greater than a predetermined amount determined as a criterion for control operation, the floor capable of damping the rope swing Is set as an attenuation floor (steps S201 to S204).

  Here, when the car 14 is traveling (Yes in Step S205) and no attenuation floor is set in the traveling direction (No in Step S206), the following processing is executed.

  In other words, the fact that there is no attenuation floor in the traveling direction of the car 14 means that the attenuation floor is set behind the car 14, that is, in the direction opposite to the current traveling direction. Therefore, the operation control unit 32 of the control device 22 reverses the direction of the car 14 and moves the car 14 in a direction opposite to the direction in which the car is currently traveling (step S207). Then, the operation control unit 32 stops the door 14 on the attenuation floor and waits for the rope run-out to converge (step S208). This operation is called “rope damping operation”.

FIG. 11 shows an example of rope attenuation operation.
For example, in the building 10 on the 1st to 60th floors, it is assumed that the destination floor of the car 14 is the 60th floor, and currently the vicinity of the 40th floor is traveling upward. Here, if the 30th floor is set as an attenuation floor during traveling, the direction of the car 14 is reversed and moved downward. Then, the passenger car 14 is closed on the 30th floor and waits for the rope swing to attenuate. In this case, the passenger is not dropped off on the 30th floor, but is simply waiting in a door-closed state.

  At this time, the notification unit 33 provided in the control device 22 is activated and, for example, “I moved to a safe place because a building shake was detected. Please wait for a while”. Is output from the speaker 43 in the car 14 (step S208). If the rope swing converges and becomes less than the predetermined amount while the car 14 is waiting on the attenuation floor (Yes in step S210), the operation control unit 32 restarts the operation of the car 14, and the attenuation floor To the destination floor (step S211).

  In step S204, when a plurality of attenuation floors are set and all of them are located behind the car 14, the car 14 is reversed in direction and is most effective for attenuating the rope runout. It is assumed that it is moved to a proper attenuation floor.

  In step S208, the car 14 is closed and stopped at the attenuation floor. However, it is not always necessary to stop at the attenuation floor. If the swing of the rope is likely to converge immediately, the car 14 may pass slowly through the attenuation floor. It is also possible to run at a lower speed than the normal speed.

  In step S210, the operation of the car 14 is resumed after confirming that the rope runout has converged. However, after a certain period of time, it is considered that the rope runout has converged and the car 14 is run. It may be resumed.

  Thus, according to the second embodiment, when there is no attenuation floor in the traveling direction of the car 14, the rope 14 caused by the resonance phenomenon is moved by reversing the direction of the car 14 to the attenuation floor. The increase in run-out can be prevented, and the operation service can be continued safely without shifting to the control operation. In addition, since the operation is resumed after the rope runout is converged, it is possible to prevent the vibration and noise of the car accompanying the rope runout.

(Third embodiment)
Next, a third embodiment will be described.

  In the state where the rope is swinging, especially when the car 14 heads to the terminal floor (the uppermost floor or the lowermost floor), the rope swings gather at the terminal floor as the car 14 approaches the terminal floor. The occurrence rate of vibration and noise of the car 14 is increased. In 3rd Embodiment, the vibration and noise resulting from the rope runout which arise in such a terminal floor are reduced.

  Since the basic configuration of the control device 22 is the same as that of the first embodiment, the processing operation will be described here with reference to FIG.

  FIG. 12 is a flowchart showing a part of the processing operation of the elevator control device 22 in the third embodiment. This flowchart shows processing when the rope swings at the attenuation floor and then moves toward the destination floor in step S109 of FIG. 7 or step S210 of FIG.

  When resuming the operation of the car 14 from the attenuation floor and heading to the destination floor, the operation control unit 32 provided in the control device 22 is based on the call registration information stored in the storage unit (not shown). It is determined whether or not the floor is a terminal floor (top floor or bottom floor) (step S301).

  That is, even if the car 14 is closed at the attenuation floor and the operation is resumed after waiting for the rope swing to converge in the preceding process, the rope is still slightly swinging. In this state, when heading to the terminal floor, there is a possibility that vibrations and noises may be generated in the car 14.

  Therefore, when the destination floor is the terminal floor (Yes in Step S301), the operation control unit 32 makes the car 14 face the destination floor at a lower speed than the normal speed (Step S302). By reducing the traveling speed of the car 14, it is possible to reduce the occurrence of vibration and noise caused by rope swing.

  On the other hand, when the destination floor is other than the terminal floor (No in step S301), the operation control unit 32 directs the car 14 to the destination floor at the normal speed (step S302).

  Note that if the floor near the terminal floor is the destination floor, such as the floor just before the terminal floor, vibration and noise may occur somewhat due to rope swings. The car 14 may be directed to the destination floor.

  As described above, according to the third embodiment, by reducing the traveling speed when heading to the terminal floor, it is possible to reduce vibrations and noises caused by the rope swing occurring at the terminal floor.

(Fourth embodiment)
Next, a fourth embodiment will be described.

  In a general control operation, the passenger car 14 is temporarily stopped at the nearest floor and the passengers are lowered, and then the operation is stopped by moving to the attenuation floor (reservation floor) in a state of zero loading. For this reason, when analyzing the characteristics of the rope runout, the analysis is generally performed with zero loading, and the attenuation floor is also fixedly set based on the analysis result. However, in this method, since the passenger is moved from the car 14 to the attenuation floor without taking off, the loading floor is not necessarily zero, and the attenuation floor may also change. Therefore, in the fourth embodiment, the attenuation floor is set in consideration of the loading load of the car 14.

  FIG. 13 is a block diagram illustrating a functional configuration of the elevator control device 22 according to the fourth embodiment. In addition, the same code | symbol is attached | subjected to the part same as the structure of FIG. 2 in the said 1st Embodiment, and the description shall be abbreviate | omitted.

  In the fourth embodiment, a load sensor 44 is installed at the bottom of the car 14, and the load load accompanying the passenger getting on and off is detected by the load sensor 44. Information on the loaded load detected by the load sensor 44 is sent to the control device 22 via the car control device 18. The damping floor setting unit 32a of the operation control unit 32 provided in the control device 22 considers the load on the car 14 when the amount of rope swing is greater than or equal to a predetermined amount determined as a criterion for control operation. To set the decay floor.

  FIG. 14 is a flowchart showing the processing operation of the elevator control device 22 according to the fourth embodiment. Except for the processes of steps S404 to S405, the process is the same as the flowchart of FIG. 7 in the first embodiment.

  That is, when the swing of the building 10 is detected and the swing amount of the rope accompanying the swing of the building is greater than or equal to a predetermined amount determined as a criterion for control operation (steps S401 to S403), the swing of the rope is attenuated. The possible floors are set as decay floors. At that time, the attenuation floor setting unit 32a of the operation control unit 32 sets the attenuation floor in consideration of the loading load of the car 14 detected by the load sensor 44 (steps S404 and S405).

  Specifically, the attenuation floor setting unit 32a performs correction by adding the current load load to the rope load characteristic of zero load (see FIGS. 3 to 6) obtained as an analysis result of the rope shake estimation unit 31, and performs the correction. A floor with less rope runout is extracted from the later rope runout characteristics and set as an attenuation floor. Alternatively, an attenuation floor corresponding to the loaded load is provided in the attenuation floor setting unit 32 a in advance, and the attenuation floor is set by a method of switching the attenuation floor according to the loaded load detected by the load sensor 44.

Subsequent processing is the same as in the first embodiment.
That is, if an attenuation floor is set in the traveling direction of the car 14, the operation control unit 32 moves the car 14 to the attenuation floor, stops the door there, and waits for the rope swing to converge ( Steps S406 to S408). At this time, the notification unit 33 provided in the control device 22 is activated, and for example, “Please wait for a while because a building shake has been detected.” Are output from the speaker 43 (step S409). When the rope swing converges, the operation control unit 32 resumes the operation of the car 14 and travels from the attenuation floor to the destination floor (step 410, S411).

  When a plurality of attenuation floors are set in step S405, the rope attenuation operation is performed by selecting the attenuation floor that is most effective for attenuating the rope swing.

  In step S408, the car 14 is closed and stopped at the attenuation floor. However, it is not always necessary to stop at the attenuation floor. If the swing of the rope is likely to converge immediately, the car 14 will slowly pass through the attenuation floor. It is also possible to run at a lower speed than the normal speed.

  In step S410, the operation of the car 14 is resumed after confirming that the rope runout has converged. However, after a certain period of time, it is considered that the rope runout has converged and the car 14 is run. It may be resumed.

  Furthermore, it is possible to combine the processes of the second and third embodiments.

  As described above, according to the fourth embodiment, by setting the attenuation floor in consideration of the loading load of the car 14, it is possible to more reliably prevent an increase in rope runout due to the resonance phenomenon, and to control the operation. Driving service can be continued safely without shifting to. In addition, since the operation is resumed after the rope runout is converged, it is possible to prevent the vibration and noise of the car accompanying the rope runout.

  In each of the above embodiments, the case has been described assuming that the car 14 is answering a call, that is, traveling toward the destination floor. Even if it exceeds, it is preferable to secure the safety by carrying out the rope damping operation in the same manner as described above and moving the car to the damping floor.

  Further, in each of the embodiments described above, the “attenuating floor” is not limited to a floor where passengers can get on and off, and may be a space between floors or a specific position as long as the rope swing can be attenuated.

  According to at least one embodiment described above, when the building is shaken, an increase in the rope swing can be prevented, and the driving service can be continued safely without shifting to the control operation, and the car vibration caused by the rope swing can be maintained. An elevator control device capable of preventing noise can be provided.

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Elevator, 12 ... Hoisting machine, 13, 13a, 13b ... Main rope, 14 ... Ride car, 15 ... Counter weight, 16 ... Compensation, 17, 17a, 17b ... Compen rope, 18 ... Car Control device, 19 ... car door, 20 ... transmission cable, 21a, 21b, 21c ... landing, 22 ... control device, 23 ... acceleration sensor, 31 ... rope runout estimation unit, 32 ... operation control unit, 32a ... attenuation floor setting unit 33 ... Operation control unit 34 ... Notification unit 35 ... Timer 36 ... Rope swing estimation unit 41 ... Destination floor button 42a ... Door open button 42b ... Door close button 43 ... Speaker 44 ... Load sensor.

Claims (8)

In an elevator control device equipped with a car that moves up and down via a rope installed in a hoistway of a building,
Building shaking detection means for detecting the shaking of the building,
Rope swing estimation means for estimating the amount of swing of the rope based on the amount of swing of the building detected by the building swing detection means and the position of the car;
Attenuation floor setting means for setting a floor capable of attenuating the rope runout as an attenuation floor when the amount of rope runout estimated by the rope runout estimation means is a predetermined amount or more,
When the attenuation floor set by the attenuation floor setting means exists in the traveling direction of the car, after the rope is damped to move the car to the attenuation floor, the car travels to the destination floor. And an operation control means for controlling the elevator. The operation control means includes
The elevator control apparatus according to claim 1, wherein the elevator car is closed at the attenuation floor after the passenger car is moved to the attenuation floor. The operation control means includes
2. The elevator control device according to claim 1, wherein the traveling speed of the car is lowered below a normal speed so as to pass slowly through the attenuation floor. The operation control means includes
4. The rope attenuation operation according to claim 1, wherein when a plurality of attenuation floors are set by the attenuation floor setting means, a rope attenuation operation is performed by selecting an attenuation floor that is most effective for attenuating the rope runout. The control apparatus of the elevator in any one. The operation control means includes
4. If the attenuation floor set by the attenuation floor setting means does not exist in the traveling direction of the car, the direction of the car is reversed to face the attenuation floor. The control apparatus of the elevator in any one of. The operation control means includes
The elevator control according to any one of claims 1 to 3, wherein when the destination floor is a terminal floor, the traveling speed of the car is made lower than a normal speed and headed to the destination floor. apparatus. Equipped with load detection means for detecting the load of the car,
The attenuation floor setting means includes
2. The elevator control device according to claim 1, wherein an attenuation floor is set in consideration of the load of the car detected by the load detecting means.   2. The elevator control apparatus according to claim 1, further comprising notifying means for notifying passengers in the car that the rope is being dampened when the car is moved to the attenuation floor.

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