JP5903055B2 - Elevator system and elevator operation control method - Google Patents

Description

  The present invention relates to an elevator system and an elevator operation control method that perform operation control in consideration of the influence of strong winds on an elevator.

  When the elevator is installed outdoors, there is a concern that the operation of the elevator is affected by the wind. For example, there may be a problem that ropes are caught on equipment in a hoistway. Usually, strong wind control operation is installed to prevent passenger confinement and damage to various devices. As conventional elevator operation control, an anemometer is installed in the upper part of the building as described in Patent Document 1, and when the wind speed exceeding a predetermined value is measured, the elevator is decelerated, or the elevator is lowered after the passenger is lowered. Strong wind control operations such as stopping operation are being implemented.

JP 2008-137800 A

  However, in the conventional strong wind control operation as described in Patent Document 1 described above, there is a problem that the effect of strong wind on the elevator cannot be grasped and the operation efficiency of the elevator is reduced by overestimating the influence. It was.

  An object of the present invention is to provide an elevator system and an elevator operation control method capable of performing optimum control operation while considering the influence of strong wind on the elevator in strong wind control operation installed outdoors.

  In order to solve the above-described problems and achieve the object, an elevator system according to the present invention is based on an anemometer, a load on a rope for raising and lowering the elevator, and wind speed data acquired periodically. Based on a deflection amount calculation unit for obtaining a deflection amount in which the rope is caught on a hoistway device provided in the hoistway, a load on a guide roller that guides the elevator along the guide rail, and the wind speed data, A displacement amount calculation unit for obtaining a displacement amount in which the elevator interferes with the guide rail, and the anemometer, the shake amount calculated by the shake amount calculation unit, or the displacement amount calculated by the displacement amount calculation unit. When a wind speed value that causes any one of the following is detected, the threshold value for shifting the wind speed value to the control operation during strong wind Characterized in that it comprises a control unit for determining by.

  An elevator operation control method according to the present invention is an elevator operation control method performed in an elevator system equipped with an anemometer, and includes a load on a rope for moving the elevator up and down and wind speed data periodically acquired. A swing amount calculating step for obtaining a swing amount in which the rope is hooked to a hoistway device provided in the hoistway of the elevator, a load on the guide roller that guides the elevator along the guide rail, and the wind speed A displacement amount calculating step for obtaining a displacement amount that causes interference of the elevator to the guide rail based on the data; and the anemometer, the shake amount calculated by the shake amount calculation unit, or the displacement amount calculation unit. When the wind speed value that causes any of the displacement amounts calculated is detected, the wind speed value is A threshold setting step for setting the elevator as a threshold for shifting to a strong wind control operation, and determining whether or not the anemometer detects a wind speed value that causes either the shake amount or the displacement amount, and Even if a wind speed value is not detected, if a strong wind of a predetermined size or more is detected, a control operation transition step for temporarily shifting the elevator to a control operation during strong wind, and a wind speed value at which the anemometer exceeds the threshold value A normal operation return step for determining that there is a low possibility that a strong wind having a wind speed exceeding the threshold value is generated when a predetermined time has not elapsed and returning the elevator to a normal operation. To do.

  According to the present invention, it is possible to provide an elevator system and an elevator operation control method capable of performing optimal control operation while considering the influence of strong wind on the elevator in strong wind control operation installed outdoors.

It is a figure showing the outline of the elevator system concerning this embodiment. It is explanatory drawing for examining the catch of a long thing in the swing of a main rope. It is explanatory drawing for examining the catch of a long thing in governor rope runout. It is explanatory drawing for examining the interference at the time of the cage displacement by a wind pressure (cage displacement amount (delta) x). It is explanatory drawing for examining the interference (cage displacement amount (delta) y) at the time of the cage displacement by a wind pressure. It is a figure which shows the example of a judgment table. The relationship between the maximum instantaneous wind speed and time is shown. It is a flowchart which shows the process sequence of the driving | running control method performed with the elevator system concerning this Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator system and an elevator operation control method according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram schematically illustrating an elevator system according to the present embodiment. As shown in FIG. 1, the elevator system according to the present embodiment includes an anemometer 2 installed near the top floor of a building 1, a hoisting machine 3 provided in a hoistway top machine room of the building 1, The main rope 4 is wound up by the upper machine 3 and has one end attached to the car 5 and the other end attached to the counterweight 6, the car 5 provided on one end side of the main rope 4, and the other end side. The counterweight 6, a governor 7 provided at the top of the machine room, and a governor rope 8 wound around the governor 7 are configured. As shown in FIG. 1, the main rope 4 and the governor rope 8 are installed outdoors and are directly exposed to the wind. Moreover, the elevator system mentioned above performs each calculation shown below by the control part of the computer 100 installed in the management room, and controls the elevator.

Next, a method for studying the effect of strong wind on the elevator will be described. As a matter of concern that the strong wind affects the elevator, there is a possibility of catching a long object and interference at the time of car displacement due to wind pressure. As the catch of a long object, the swing of the main rope 4 and the swing of the governor rope 8 are mentioned. Here, the control part of the computer 100 calculates | requires the deflection amount of a rope by Formula (1). This formula (1) is derived, for example, by main rope tension calculation based on the fence line theory.
f = {1/2 (w × L1) + P} × L / 4H × 1000 (1)
f: Rope runout [mm]
w: Distributed load [N / m]
L: Horizontal span length [m]
L1: Height of the part of the building that does not have an enclosure [m]
P: Concentrated load [N]
H: Rope horizontal tension [N]

The distributed load is calculated from the wind pressure Pw and the rope diameter φ, and can be obtained by the following equation (2), for example.
w = Pw x φ (2)
Pw: Wind pressure [N / m2]
φ: Rope diameter [m]

  In addition, as shown in FIG. 2, the investigation of the catch of a long object in the swing of the main rope 4 is the closest to the main rope and the rope swing amount f calculated by the control unit of the computer 100 using the equation (1). This is done by comparing the distance 14 (r1) with the hoistway device 10. By grasping this distance 14, it is possible to grasp the range of catching due to the swing of the main rope.

  Further, the investigation of the catch of a long object in the swing of the governor rope 8 is performed by the control unit of the computer 100 as shown in FIG. 3 and the rope swing amount f (the governor rope swing amount 19) calculated from the equation (1) and the governor rope 8. And the distance 15 (r2) to the nearest hoistway device 10 is compared. Note that the control unit of the computer 100 evaluates the governor rope shake amount 19 by the shake amount between the governor rope steady rests 11 (between two governor rope steady rests 11 in the example shown in FIG. 3). The control unit of the computer 100 can grasp the distance 15 by grasping the distance 15 so as to grasp the range of the catch due to the swing of the governor rope.

Further, the prevention of the interference when the car is displaced by the wind pressure includes the interference between the guide rail 9 and the stop members such as the car side detent 12 (FIG. 4) and the emergency stop 13 (FIG. 5) provided on the car 5. It is done. Here, the displacement of the car is obtained from the equation (2) by the control unit of the computer 100.
δx, y = Fx, y / k × 1000 (2)
δx, y: RG direction (x), longitudinal direction (y) displacement of guide roller [mm]
Fx, y: Guide roller RG direction (x), longitudinal direction (y) reaction force [N]
k: Spring constant [N / mm]
Guide roller reaction force Fx, Fy [N] due to wind speed
Fx = (S1 × Pw) / 2
Fy = (S2 × Pw) / 4
S1: Car area (side) [m2]
S2: Basket area (rear) [m2]
Pw: Wind pressure [N / m2]

  As shown in FIG. 4, the control unit of the computer 100 evaluates whether or not the car displacement amount δx calculated from the equation (2) and the distance between the stopper 12 and the guide rail 9 can be set as the allowable value 16. To do. Further, as shown in FIG. 5, the control unit of the computer 100 determines whether or not the car displacement amount δy calculated from the equation (2) and the distance between the emergency stop 13 and the guide rail 9 can be set as the allowable value 17. evaluate.

  Here, FIG. 6 shows an example in which the aforementioned examination results are summarized. In the following, the control unit of the computer 100 uses a wind speed value that serves as a reference for determining whether or not each of the ropes and stop members described above interferes with the car 5 and the guide rail 9. The wind speed value can be derived by various methods conventionally known from the relationship between the wind pressure and the wind speed used in the above-described equations, using a wind force coefficient or the like.

  FIG. 6 determines whether each rope interferes with the car 5 or whether the stop member interferes with the guide rail 9 based on the swing amount of each rope and the displacement amount of the stop member, and these swing amounts and displacement amounts. It is a figure which shows the example of the table (determination table) which shows the relationship with the wind speed used as the threshold value for this. In the determination table shown in FIG. 6, it can be seen that there is no interference at the time of the car displacement due to the catch of the long object (for example, the governor rope 8) and the wind pressure up to the wind speed V1 m / s (for example, the wind speed 20 m / s). For this reason, the control unit of the computer 100 safely stops the car 5 at the nearest floor. Although only the governor rope 8 is shown in FIG. 6, the control unit of the computer 100 can of course evaluate the main rope 4 in the same manner.

  On the other hand, when the wind speed is higher than V2 m / s, it can be seen that there is a possibility that the car side locking 12 or the emergency stop 13 may interfere with the guide rail 9. For this reason, the control unit of the computer 100 does not automatically return the elevator, but notifies that maintenance by a maintenance worker is necessary through sound from a speaker, a display screen from a display, or the like. Then, the control unit of the computer 100 determines that the set value of the wind speed for manual return after the inspection by the maintenance staff should be V2m / s.

  More specifically, the control unit of the computer 100 determines the distance between the main rope 4 and the nearest hoistway device 10 (or the hoistway closest to the governor rope 8), in which the rope runout amount f obtained by the above-described equation (1) is The wind speed value at the boundary point that is larger than the distance to the device 10 is obtained, and the wind speed value is set as a threshold value (for example, wind speed V1 m / s). Then, as will be described later, the control unit of the computer 100 compares the wind speed data acquired from the Japan Meteorological Agency or an external site with the obtained threshold value, and the distance between the main rope 4 and the nearest hoistway device 10 (or If it is determined that the distance is greater than the distance between the governor rope 8 and the nearest hoistway device 10, it is determined that the main rope 4 or the governor rope 8 may be caught by the hoistway device 10.

  Further, the control unit of the computer 100 obtains a wind speed value that is a boundary point at which the car displacement amount δx, y obtained by the above-described equation (2) is larger than the above-described allowable value, and the wind speed value is set as a threshold value (for example, Wind speed V2m / s). Then, as will be described later, the control unit of the computer 100 compares the wind speed data acquired from the Japan Meteorological Agency or an external site with the obtained threshold value, and the car displacement amount δx, y is greater than a predetermined allowable value. Is determined to be large, it is determined that interference with the guide rail 9 by the car 5 may occur.

  As described above, the control unit of the computer 100 obtains the above-described threshold value using the wind speed data. Therefore, when such a wind speed actually occurs, the above-described catching and interference are not caused. Therefore, it is possible to control the operation of the elevator appropriately.

  Next, the characteristics of strong wind will be examined. FIG. 7 shows the relationship between the maximum instantaneous wind speed and time. In the relationship diagram, the control unit of the computer 100 analyzes the wind speed data measured by the Japan Meteorological Agency. The wind speed data is, for example, data related to the wind speed at a point where the elevator is installed, stored in the Japan Meteorological Agency or an external site, and includes past performance values and predicted values. The control unit of the computer 100 accesses these sites, periodically acquires wind speed data, and refers to this data. For example, the acquired wind speed data is stored in the threshold value (for example, wind speed V1 m / s). The time interval 18 exceeding the wind speed of 20 m / s is obtained. In FIG. 7, it can be seen that the probability that a strong wind exceeding 20 m / s will be generated in less than 10 minutes is very high. Accordingly, the control unit of the computer 100 determines whether or not the time during which the anemometer 2 does not detect a strong wind exceeding 20 m / s continues for 10 minutes or more, and the time when the anemometer 2 does not detect such a strong wind. Is determined not to continue for 10 minutes or more, it is determined that normal operation can be restored. Thus, since the control part of the computer 100 acquires wind speed data regularly and calculates | requires the time interval mentioned above, the return interval of an elevator can be set according to a weather condition.

  Then, the process sequence of the driving | running control method performed with the elevator system in this Embodiment is demonstrated. FIG. 8 is a flowchart showing a processing procedure of the operation control method performed in the above-described elevator system. Below, the case where the wind speed of 20 m / s is set as the above-described threshold (wind speed V1 m / s), the wind speed of 25 m / s is set as the above-described threshold (wind speed V2 m / s), and the elevator is operating normally will be described. ing.

  As shown in FIG. 8, first, the control unit of the computer 100 causes the anemometer 2 to exceed the above-described threshold in a state where strong wind is generated (for example, a wind speed of 20 m / s corresponding to the threshold V1 m / s). It is determined whether or not a strong wind exceeding the above has been detected (whether wind speed data has been acquired) (step S801). When the control unit of the computer 100 determines that the anemometer 2 does not detect such a strong wind (step S801; No), as shown in FIG. 6, the main rope 4 or the governor rope 8 is caught or on the side of the cage. It is determined that there is no interference with the guide rail 9 due to the stopper 12 or the emergency stop 13, and the normal operation of the elevator is continued. When the wind speed is detected for less than a predetermined time (for example, 1 second), the control unit of the computer 100 causes the strong wind to be, for example, a gust due to a building wind, and exceeds the above-described threshold. It is judged that this is not due to the occurrence of strong strong winds, and the elevator is normally operated continuously.

  On the other hand, if the control unit of the computer 100 determines that the anemometer 2 has detected such a strong wind (step S801; Yes), the anemometer 2 further exceeds the above-described threshold (for example, the threshold V2m / s). It is determined whether or not a strong wind exceeding the corresponding wind speed (25 m / s) has been detected (whether wind speed data has been acquired) (step S802). When the control unit of the computer 100 determines that the anemometer 2 has detected such a strong wind (step S802; Yes), the control unit of the computer 100 is at least out of the car as shown in FIG. It is determined that there is a possibility of causing interference (or interference) to the guide rail 9 by the stop 12 or the emergency stop 13, and the indicator lamp of the display portion provided in the car is turned on by a speaker or the like A notification to the effect of shifting to the control operation is notified (step S814).

  Thereafter, the control unit of the computer 100 cancels all calls from the floor, controls the elevator to return to the nearest evacuation floor (step 815), and causes the car to land on the evacuation floor (step S816). When the control unit of the computer 100 detects that the door has been opened, it turns off the ceiling lighting in the car and flickers the “open” button provided on the display unit in the car (step S817). .

  Then, the control unit of the computer 100 closes the door when a certain time (for example, 15 seconds) elapses without detecting the pressing of the “open” button in the car, and when the “open” button is pressed, The door is opened (steps S818 to S820), and the elevator is shifted to the operation halt state. Thereafter, after determining that there is no abnormality in the inspection by the maintenance staff, the control unit of the computer 100 manually accepts the return operation to the normal operation and causes the elevator to operate normally. As described above, since the return operation to the normal operation is manually performed after the inspection by the maintenance staff, it is possible to reliably operate the elevator.

  In step S802, the control unit of the computer 100 determines that the control unit of the computer 100 has not detected a strong wind exceeding the wind speed of 25 m / s corresponding to the threshold value V2 m / s, for example (step S802). ;)) At this time, the anemometer 2 detects a strong wind exceeding a wind speed of 20 m / s corresponding to the threshold value V1 m / s, and detects a strong wind exceeding a wind speed of 25 m / s corresponding to the threshold value V2 m / s described above. It is determined that there is a possibility, processing similar to the processing from step S814 to S820 is performed (steps S803 to S809), and the elevator is shifted to the strong wind operation mode (step S810). The strong wind operation mode is a mode for automatically shifting to the normal operation without inspecting by maintenance personnel when the strong wind disappears once the elevator is temporarily stopped.

  In step S810, the control unit of the computer 100 determines whether or not strong winds exceeding the wind speed of 20 m / s detected by the anemometer 2 in step S801 are no longer detected after the elevator is temporarily stopped (step S811). ), When it is determined that such a strong wind is still detected (step S811; No), the process returns to step S810 to continue the operation stop of the elevator.

  On the other hand, when the control unit of the computer 100 determines that the strong wind exceeding the wind speed of 20 m / s is not detected (step S811; Yes), in order to determine whether or not the normal operation can be restored, FIG. As shown in FIG. 7, it is determined whether or not 10 minutes or more have elapsed in that state (step S812). When the control unit of the computer 100 determines that ten minutes or more have not elapsed since the detection of strong wind exceeding 20 m / s (step S812; No), the control unit returns to step S810 to stop the elevator operation. To continue.

  On the other hand, if the control unit of the computer 100 determines that 10 minutes or more have passed since no strong wind exceeding 20 m / s is detected (step S812; Yes), the probability that a strong wind exceeding 20 m / s will be generated again. The display lamp and the “open” button provided in the car are turned off, the ceiling illumination is turned on again (step S813), and the elevator is shifted to normal operation.

  Thus, in the elevator system according to the present embodiment, the amount of swing of each rope and the amount of displacement of the stop member, and each rope interferes with the car 5 due to the amount of swing and amount of displacement, or the stop member is guided by the guide rail 9. If a strong wind with a wind speed that may cause such interference occurs, the elevator is temporarily shifted to the operation stop state. If a certain period of time has passed since such strong wind is no longer detected, it is determined that strong wind will not occur again and cause the above-mentioned interference, and the elevator is automatically shifted to normal operation. On the other hand, if a strong wind with the above-mentioned interference is generated, the elevator is shifted to the operation stop state, and after it is determined that there is no abnormality in the inspection by the maintenance staff, it is manually leveled. Receiving a return operation to the driver, so to operate the elevator normal, taking into account the influence of strong wind has on the elevator in the strong wind control operation to be installed outdoors, it is possible to perform an optimum control operation. In other words, determine the effect of strong wind on the elevator, set the threshold value of the anemometer installed outdoors, study the characteristics of the strong wind, and optimize the waiting time until the elevator returns Therefore, it is possible to appropriately carry out control operation during strong winds.

  In addition, when the elevator is installed outdoors, there is a concern that the operation of the elevator is affected by the wind, and for example, a problem may occur in which ropes are caught by equipment in the hoistway. In order to prevent passenger confinement and damage to various equipment due to these, strong wind control operation is performed, but as conventional elevator operation control, an anemometer was installed at the top of the building, and wind speed exceeding a predetermined value was measured In some cases, strong wind control operations such as decelerating the elevator and stopping the elevator after the passengers are lowered are being carried out. However, in the conventional strong wind control operation, the effect of strong wind on the elevator could not be grasped, and there was a problem that the operation efficiency of the elevator was reduced by overestimating the influence, but the elevator in this embodiment is By performing the above-described control, it is possible to carry out optimal strong wind control operation, thereby improving the operation efficiency of the elevator and reducing the burden on maintenance personnel.

  The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, for example, in an elevator in which a governor rope is not installed, the control unit of the computer 100 examines the hook only by the main rope, and in this case, the amount of deflection is often larger than that in the case of being connected. Therefore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, such as making the amount of shake slightly larger than the calculated value, and to implement the other configuration to the configuration of one embodiment. It is possible to add the configuration of the example, or to add, delete, or replace another configuration with respect to a part of the configuration of each embodiment.

1: building, 2: anemometer, 3: hoist, 4: main rope, 5: cage, 6: counterweight, 7: governor, 8: governor rope, 9: guide rail, 10: equipment in hoistway, 11 : Governor steady rest, 12: Car side seizure prevention, 13: Emergency stop, 14: Distance between main rope and nearest hoistway equipment, 15: Distance between governor rope and nearest hoistway equipment, 16: Rest prevention and guide Allowable value with rail, 17: Allowable value with emergency stop and guide rail, 18: Time interval exceeding 20 m / s wind speed, 19: Governor rope runout.

Claims (5)

An anemometer,
Based on the load on the rope that raises and lowers the elevator and the wind speed data that is periodically acquired, a shake amount calculation unit that obtains a shake amount that causes the rope to be caught in the hoistway equipment provided in the elevator hoistway; ,
A displacement amount calculation unit that obtains a displacement amount that causes interference of the elevator to the guide rail based on the load on the guide roller that guides the elevator along the guide rail and the wind speed data;
When the anemometer detects a wind speed value that causes either the shake amount calculated by the shake amount calculation unit or the displacement amount calculated by the displacement amount calculation unit, the wind speed value is converted into the elevator. A control unit that defines a threshold for shifting to control operation during strong winds,
An elevator system comprising: Even when the anemometer does not detect a wind speed value that causes either the shake amount or the displacement amount, when the anemometer detects a strong wind of a predetermined magnitude or larger, the control unit temporarily turns the elevator into a strong wind It is determined that there is a low possibility that a strong wind with a wind speed exceeding the threshold value is generated when a predetermined time has elapsed when the anemometer does not detect the wind speed value exceeding the threshold value, and the elevator is shifted to time control operation. To return to normal operation,
The elevator system according to claim 1. When the anemometer detects a wind speed value that causes either the amount of shake or the amount of displacement, the control unit shifts the elevator to a strong wind control operation, and then shifts to an operation stop state.
The elevator system according to claim 1 or 2, characterized by things. The control unit obtains an interval between a time at which a wind speed exceeding the threshold is generated and a time at which a wind speed exceeding the threshold is subsequently generated from the wind speed data acquired periodically. Calculating the predetermined time;
The elevator system according to claim 2 or 3 characterized by things. An elevator operation control method performed in an elevator system equipped with an anemometer,
A swing amount calculating step for obtaining a swing amount that causes the rope to be caught in a hoistway device provided in the hoistway of the elevator, based on a load on the rope that raises and lowers the elevator and wind speed data acquired periodically. ,
A displacement amount calculating step for obtaining a displacement amount that causes interference of the elevator to the guide rail based on a load on the guide roller that guides the elevator along the guide rail and the wind speed data;
When the anemometer detects a wind speed value that causes either the shake amount calculated in the shake amount calculation step or the displacement amount calculated in the displacement amount calculation step, the wind speed value is converted into the elevator. A threshold setting step for setting the threshold as a threshold for shifting to a strong wind control operation,
It is determined whether or not the anemometer has detected a wind speed value that causes either the shake amount or the displacement amount, and even if the wind speed value is not detected, a strong wind of a predetermined magnitude or more is detected. If so, a control operation transition step for transitioning the elevator to a strong wind control operation once,
A normal operation in which it is determined that there is a low possibility of a strong wind having a wind speed exceeding the threshold when the anemometer does not detect a wind speed value exceeding the threshold, and the elevator is returned to a normal operation. A return step;
The operation control method of the elevator characterized by including.

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