JP2013209208A - Controller of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continue an operation service while securing safety without shifting to an emergency operation to an extent practicable 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 member 32a restricting the opening of a door to restrict a time for opening a door shorter than normal when the car 14 stops at each floor if the amount of the swing of the rope is equal to or larger than a prescribed amount, and an operation control member 32 controlling the operation of the car 14 after the door of the car 14 is closed based on the presence or the absence of call registration and on information on the floor at which the car 14 is stopped.

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.

  The problem to be solved by the present invention is to provide an elevator control device capable of ensuring safety and continuing an operation service without shifting to control operation as much as possible when a building is shaken.

  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 A door opening limiting means for limiting the door opening time when the car stops on each floor to a shorter time than usual when the swing amount is greater than or equal to a predetermined amount, and call registration after the car is closed And an operation control means for controlling the operation of the car based on presence / absence and information on the floor where the car is stopped.

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 flowchart showing processing relating to door opening restriction of the elevator control apparatus according to the second embodiment. FIG. 9 is a block diagram illustrating a functional configuration of an elevator control device according to the third embodiment. FIG. 10 is a flowchart showing a part of the processing operation of the elevator control apparatus according to the embodiment. FIG. 11 is a flowchart showing processing relating to load limitation of the elevator control device according to the fourth 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 by an earthquake or strong wind, the control device 22 estimates the rope swing associated with the shaking of the building 10 and controls the door opening / closing of the car 14 based on the estimation result. It has a function to do.

  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 shown in FIG. 2, the control device 22 includes a rope shake estimation unit 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 driving control unit 32 controls the driving of the car 14 based on the presence / absence of call registration after the car 14 is closed and the information on the floor where the car 14 is stopped (whether it is a waiting floor). The operation control unit 32 includes a door opening restriction unit 32a. The door opening restriction unit 32a is used when the car 14 stops at each floor when the amount of rope runout estimated by the rope runout estimation unit 31 is greater than or equal to a predetermined amount determined as a criterion for control operation. The car 14 is operated with the door opening time limited to a time shorter than usual.

  When the operation control unit 32 restricts the door opening time of the car 14, the notification unit 33 notifies the passenger of the door closing promotion. Specifically, the notification method is a buzzer sound or a voice announcement. In addition, you may alert | report using both a buzzer sound and an audio | voice announcement. In the present embodiment, a case where notification is made by a buzzer sound will be described as an example.

  In the car 14, a destination floor button 41, a door opening button 42a, a door closing button 42b, and a buzzer 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. Further, the buzzer 43 is sounded by a drive signal from the notification unit 33 when the car 14 stops at each 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 a characteristic that the car 14 swings most in the vicinity of the lowest floor. On the other hand, the main rope 13b on the counterweight 15 side has a characteristic that the car 14 swings most near the top 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 the floor slightly above the central floor. 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.

  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, the relationship between the swing of the rope and the position of the car differs depending on the characteristics of the building 10 and the characteristics of the elevator 11, and a specific method for obtaining the swing amounts of the ropes 13a, 13b, 17a, 17b from the swing amount of the building 10 is known. Therefore, detailed description thereof will be 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. If 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 determines whether or not it is stopped at any one of the floors from the operation information of the car 14 ( Step S104).

  If the car 14 is stopped on a floor (Yes in Step S104), the operation control unit 32 next determines whether or not the car 14 is open (Step S105). The door open / closed state of the car 14 can be determined from a signal of a door switch (not shown) installed on the car door 19. The operation control unit 32 receives the door switch signal from the car control device 18 and determines whether or not the car 14 is being opened.

  Here, when the car 14 is in the door open state (Yes in step S105), the operation control unit 32 activates the door open restricting unit 32a to promote the door closing and move quickly. An opening restriction process is executed (step S106).

  In this door opening restriction process, the door opening time (time for maintaining the door opening state) of the car 14 is set shorter than usual, and the door is forcibly closed when the set time elapses. For example, if the normal door opening time is Topen, the opening time is reduced to about 4 · Open / 5 when door opening is limited. That is, if Topen at normal time is 10 seconds, the door opening limit is 8 seconds, and the door closing is forcibly started after 8 seconds have passed since the car door 19 is fully opened.

  At this time, the driving control unit 32 sounds the buzzer 43 in the car 14 through the notification unit 33 to notify the passenger that the passenger is full and stops the passenger from boarding (step S107).

  Normally, the car 14 is provided with a door opening button 42a. When the door open button 42a is pressed (Yes in step S108), the operation control unit 32 maintains the door open state without closing the door even if the door open time has elapsed. This is for safety, and the operation of the door opening button 42a is validated in order to prevent the passenger from being caught by jumping on. Similarly, a door safety function (not shown) is also activated. If the door opening button 42a is not pressed (No in Step S108), the operation control unit 32 closes the car 14 through the car control device 18 (Step S109).

  If a call (car call / landing call) is registered after the door is closed (Yes in step S110), the operation control unit 32 moves the car 14 in response to the call (step S111). On the other hand, if there is no call registration (No in step S111), the operation control unit 32 determines whether or not the car 14 is stopped on the evacuation floor (step S112).

  The “evacuation floor” is a non-resonant floor. As shown in FIGS. 3 to 6, the swing of the rope varies depending on the position of the car 14.

  For example, in the case of the main rope 13a on the car 14 side, the car 14 has the characteristic that it swings the most in the vicinity of the lowest floor. Therefore, for the main rope 13a, the vicinity of the lowest floor is the resonance floor. The main rope 13b on the counterweight 15 side has a characteristic that the car 14 swings most greatly near the top floor. Therefore, for the main rope 13b, the vicinity of the top floor is the resonance floor.

  The same applies to the compen- sion rope 17a attached to the car 14 side and the compen- sion rope 17b attached to the counterweight 15 side, and each has a resonance floor that swings greatly depending on the position of the car 14.

  The non-resonant floor is obtained from the result of comprehensive analysis of the swing characteristics of these ropes 13a, 13b, 17a, 17b. Generally, the ropes 13a, 13b, 17a, and 17b have little swing near the center of the building 10, so the floor near the center is a non-resonant floor, and a safe retreat floor even if the car 14 is stagnant. Is set as one of the following.

  Here, when the car 14 is stopped on the retreat floor (Yes in Step S112), the operation control unit 32 does not move the car 14 after the door is closed until the rope runout is settled. Wait (step S113). On the other hand, if the car 14 is stopped on a floor other than the save floor (No in step S112), the operation control unit 32 moves the car 14 to the save floor immediately after the door is closed (step S114). . By moving the car 14 to the retreat floor, it is not necessary to increase the rope runout, and it is possible to wait safely until the rope runout is settled.

  As described above, according to the first embodiment, when the rope is swung over a predetermined amount or more, the door opening time of the car 14 is shortened and the door closing is promoted, so that the rope is stopped due to a long stagnation. By preventing the runout from increasing, it is possible to continue the driving service by moving to a safe floor as soon as possible.

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

  In the first embodiment, the door opening limit time is fixed regardless of the amount of rope swing. On the other hand, in 2nd Embodiment, the time of a door opening restriction | limiting is changed in steps according to the amount of swings of a rope.

  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. 8 is a flowchart showing processing relating to door opening restriction of the elevator control device 22 according to the second embodiment. The process shown in this flowchart is executed in step S106 of FIG.

  That is, when the amount of swing of the rope is equal to or greater than the predetermined amount and the car 14 is stopped at that time, the operation control unit 32 provided in the control device 22 moves quickly by promoting the door closing. In order to do this, the door opening restriction unit 32a is activated to execute door opening restriction processing (step S106).

As shown in FIG. 8, in this door opening restriction process, the operation control unit 32 predicts the future state from the change in the amount of rope swing that is sequentially obtained with the passage of time by the rope swing estimation unit 31 (step S201).
As a result, when the car 14 is in a state in which the rope runout is increased when the door is stopped to open (Yes in Step S202), the operation control unit 32 sets the car 14 according to the rope runout amount at that time. The door opening time (time for maintaining the door opening state) is set to be shortened step by step (step S203).

  For example, assuming that the rope swing estimated by the rope swing estimation unit 31 is d and the normal door opening time is Topen, the door opening time is set stepwise as follows.

When D1 ≦ d <D2: 4 · Topen / 5
When D2 ≦ d <D3: 3 · Topen / 5
When D3 ≦ d: 2 · Topen / 5
D1, D2, and D3 are thresholds for the amount of rope swing, and D1 <D2 <D3. For example, assuming that Open at normal time is 10 seconds, when the door opening is restricted, the door opening time is set to be shortened stepwise as 8 seconds → 6 seconds → 4 seconds as the amount of rope swing increases. Become.

  The subsequent operation is the same as in the first embodiment, and the operation control unit 32 sounds the buzzer 43 in the car 14 through the notification unit 33 to notify the passenger of the door closing promotion. If the call is registered after the door is closed, the call is answered. If there is no call registration, the operation of the car 14 is controlled so as to stand by on the retreat floor.

  On the other hand, when the car 14 stops opening, if the rope runout is in a state of being settled, that is, if it is in a damped state (No in step S202), the operation control unit 32 does not limit the opening of the normal door. The door is closed after the opening time has elapsed (step S204). In this case, door closing promotion is not notified. Further, the car 14 is not forcibly moved to the retreat floor.

  As described above, according to the second embodiment, when the rope runout is increasing, the door opening restriction time is changed stepwise according to the rope runout amount at that time. Therefore, the larger the swinging amount of the rope, the faster the door can be closed to avoid a dangerous state. On the other hand, if the rope runout is attenuated, the door opening restriction can be stopped to frequently shorten the door opening time and prevent the passenger from being inconvenienced.

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

  In the third embodiment, in addition to the door opening restriction described in the first and second embodiments, load restriction is performed to promote door closing.

  FIG. 9 is a block diagram illustrating a functional configuration of the elevator control device 22 according to the third 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 third embodiment, the operation control unit 32 of the control device 22 is provided with a load limiting unit 32b in addition to the door opening limiting unit 32a. The load limiting unit 32b limits the upper limit value of the loaded load of the car 14.

  In other words, an upper limit value (rated load) of the load capacity is set in advance in the car 14, and when a passenger gets on the car 14 exceeding this upper limit value, a buzzer sounds when the full lamp is turned on. 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.

  In such a configuration, the basic processing flow is the same as that of the flowchart of FIG. 7 described in the first embodiment, and therefore, different parts will be described here.

  FIG. 10 is a flowchart showing a part of the processing operation of the elevator control device 22 in the third embodiment. In this flowchart, step S300 is added after step S106 in FIG.

  That is, when the amount of swing of the rope is equal to or greater than the predetermined amount and the car 14 is stopped at that time, the operation control unit 32 provided in the control device 22 moves quickly by promoting the door closing. In order to do this, the door opening restriction unit 32a is activated to execute door opening restriction processing (step S106). Specifically, as described in the first embodiment above, the door opening time (time for maintaining the door open state) of the car 14 is set shorter than usual, and the door is forcibly closed after the set time has elapsed. Do. Note that the method of the second embodiment may be applied to change the door opening limit time stepwise in accordance with the amount of rope swing.

  Here, the operation control part 32 starts the load restriction part 32b following the said door opening restriction | limiting process, and performs a load restriction | limiting process (step S300). In this load limiting process, the upper limit value of the loaded load of the car 14 is set lower than usual.

  For example, if the upper limit value (rated load) of the normal loading load is Gmax, it is set to a low value of about 4 · Gmax / 5 when the load is limited. That is, if Gmax at the normal time is 1000 kg, the load is 800 kg when the load is limited.

  The operation control unit 32 detects the current loaded load by a load sensor 44 installed at the bottom of the car 14. When this loaded load exceeds the upper limit set by the load limiting process, the buzzer 43 in the car 14 is sounded through the notification unit 33 to notify the passenger that the passenger is full and the passenger enters Is stopped (step S107).

  If the door opening time set by the door opening restriction process elapses before the upper limit value of the load capacity is exceeded, the buzzer 43 sounds. That is, the buzzer 43 is sounded under either the door opening restriction or the load restriction.

  Thereafter, the process is the same as in the first embodiment, and if the call is registered after the car 14 is closed, the call is answered. If there is no call registration, the operation of the car 14 is controlled so as to stand by on the retreat floor.

  As described above, according to the third embodiment, when the rope swings more than a predetermined amount, the load limit is performed, thereby reducing the number of passengers and further promoting the door closing. Thereby, it is possible to prevent the rope runout from increasing due to a stagnation for a long time, and to move to a safe floor as soon as possible to continue the driving service.

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

  In the third embodiment, the upper limit value of the load limit is fixed regardless of the amount of rope deflection. On the other hand, in the fourth embodiment, the upper limit value of the load limit is changed stepwise according to the amount of rope swing.

  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. 11 is a flowchart showing processing relating to load limitation of the elevator control device 22 according to the fourth embodiment. The process shown in this flowchart is executed in step S300 of FIG.

  That is, when the amount of swing of the rope is equal to or greater than the predetermined amount and the car 14 is stopped at that time, the operation control unit 32 provided in the control device 22 moves quickly by promoting the door closing. In order to do so, the load limiting unit 32b is activated to execute the load limiting process (step S300).

As shown in FIG. 11, in this load limiting process, the operation control unit 32 predicts a future state from the change in the amount of rope runout obtained sequentially with the passage of time by the rope runout estimation unit 31 (step S301).
As a result, when the car 14 is in a state where the rope runout increases when the door is stopped (Yes in step S302), the operation control unit 32 sets the car 14 according to the rope runout amount at that time. The upper limit value of the loaded load is set lower stepwise (step S303).

  For example, assuming that the amount of rope runout estimated by the rope runout estimation unit 31 is d and the upper limit value (rated load) of a normal load is Gmax, the upper limit value of the load is set stepwise as follows.

When D1 ≦ d <D2: 4 · Gmax / 5
When D2 ≦ d <D3: 3 · Gmax / 5
When D3 ≦ d: 2 · Gmax / 5
D1, D2, and D3 are thresholds for the amount of rope swing, and D1 <D2 <D3. For example, if Gmax at normal time is 1000 kg, when the load is limited, the upper limit value of the load load is set to be lower stepwise, such as 800 kg → 600 kg → 400 kg, as the amount of rope swing increases.

  The subsequent operation is the same as in the first embodiment, and the operation control unit 32 sounds the buzzer 43 in the car 14 through the notification unit 33 to notify the passenger of the door closing promotion. If the call is registered after the door is closed, the call is answered. If there is no call registration, the operation of the car 14 is controlled so as to stand by on the retreat floor.

  On the other hand, if the car 14 is in a state in which the rope runout is being settled, that is, in a damped state when the door 14 is stopped open (No in Step S302), the operation control unit 32 does not limit the load, but the normal upper limit value. The loaded load is monitored at step S304, and if the upper limit value is exceeded, a notification is given (step S304). In this case, the car 14 is not forcibly moved to the retreat floor.

  As described above, according to the fourth embodiment, when the rope runout is increasing, the upper limit value of the loaded load is changed stepwise according to the rope runout amount at that time. Therefore, as the amount of rope swing increases, the number of passengers can be reduced and the doors can be quickly closed to avoid a dangerous state. On the other hand, if the rope runout is attenuated, it is possible to prevent the passenger from being inconvenienced by frequently reducing the upper limit value of the loaded load by stopping the load restriction.

  In the above embodiments, the door closing is promoted regardless of the floor, regardless of the position of the car. However, when the car 14 is stopped on a retreat floor with little rope swing, the normal door closing operation may be performed without promoting the door closing. In that case, for example, in the flowchart of FIG. 7, after Yes in step S <b> 105, a determination process is performed to determine whether or not the floor being opened is a save floor. The process proceeds to S109 and the door is closed as usual, and if it is a floor other than the retreat floor, the process proceeds to step S106 to perform door opening restriction.

  According to at least one embodiment described above, it is possible to provide an elevator control device capable of ensuring safety and continuing an operation service without shifting to control operation as much as possible when a building shakes. it can.

  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 swing estimation unit, 32 ... operation control unit, 32a ... door opening restriction unit 32b ... Load limiting unit, 33 ... Notification unit, 41 ... Destination floor button, 42a ... Door open button, 42b ... Door close button, 43 ... Buzzer, 44 ... Load sensor.

Claims (10)

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;
When the amount of runout of the rope estimated by the rope runout estimation unit is greater than or equal to a predetermined amount, the door open limit unit limits the door open time when the car stops at each floor to a time shorter than usual. When,
Elevator control characterized by comprising operation control means for controlling the operation of the car based on presence / absence of call registration after the car is closed and information on the floor where the car is stopped apparatus. The door opening restriction means is
If it is determined that the rope runout is increasing from the change in the runout amount of the rope estimated by the rope runout estimation means, the door opening time of the car is stepwise according to the runout amount at that time. The elevator control device according to claim 1, wherein the control device is set to be short. The door opening restriction means is
2. The door opening time of the car is not limited when it is determined that the rope runout is attenuated from the change in the runout amount of the rope estimated by the rope runout estimation means. The elevator control device described.   3. The elevator control device according to claim 1, further comprising notifying means for notifying passengers of door closing promotion when the door opening time of the car is restricted by the door opening restricting means. .   When the amount of runout of the rope estimated by the rope runout estimation unit is equal to or greater than a predetermined amount, the vehicle further comprises a load limiting unit that limits the upper limit value of the loading load of the car lower than usual. The elevator control device according to claim 1. The load limiting means is
If it is determined that the rope runout is increasing from the change in the runout amount of the rope estimated by the rope runout estimation means, the upper limit value of the load capacity of the car is set according to the runout amount at that time. 6. The elevator control device according to claim 5, wherein the control device is set to be lower stepwise. The load limiting means is
The upper limit value of the loaded load of the car is not limited when it is determined that the rope runout is in a state of attenuation from the change in the runout amount of the rope estimated by the rope runout estimation means. Item 6. The elevator control device according to Item 5.   The elevator according to claim 5 or 6, further comprising notification means for notifying passengers of door closing promotion when an upper limit value of the load on the car is restricted by the door opening restriction means. Control device. The operation control means includes
The elevator according to claim 1, wherein if there is no call registration after the car is closed and the car is stopped on a predetermined floor, the car is put on standby on the floor. Control device. The operation control means includes
The call car is forcibly moved to the shelter floor if there is no call registration after the car is closed and the car is stopped other than a predetermined shelter floor. The elevator control apparatus according to 1.

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