JP6648864B1 - Elevator equipment - Google Patents

Abstract

The elevator device includes a car (9), an accelerometer (15), an operation control unit (22), and a displacement meter (16). The car (9) moves on the hoistway (6) and the hoistway (7). The accelerometer (15) is provided on the substructure (2) or the superstructure (4). The displacement meter (16) detects a relative displacement in the horizontal direction of the substructure (2) and the upper structure (4). The operation control unit (22) starts a diagnostic operation based on the acceleration detected by the accelerometer (15) and the relative displacement detected by the displacement meter (16).

Description

  The present invention relates to an elevator device.

  Patent Document 1 discloses an elevator apparatus. In the elevator device described in Patent Literature 1, when an earthquake occurs, it is determined whether the building is provided with a seismic isolation device. An appropriate restoration method is adopted depending on whether the building is equipped with seismic isolation devices or not.

Japanese Patent Application Laid-Open No. 2009-12931

  In the elevator device described in Patent Document 1, a hoistway is formed in a structure supported by a seismic isolation device.

  On the other hand, some buildings provided with seismic isolation devices have elevator hoistways formed in both the base structure and the upper structure provided on the base structure via the seismic isolation device. The elevator device provided in such a building has a problem that it is difficult to judge whether or not automatic recovery after an earthquake can be performed based only on a signal from an earthquake detector.

  The present invention has been made to solve the above problems. An object of the present invention is to provide an elevator apparatus that can appropriately determine whether or not automatic restoration can be performed after an earthquake, even when a hoistway is formed in both the base structure and the upper structure. .

  An elevator device according to the present invention is provided in a building having a base structure, a seismic isolation device provided on the base structure, and an upper structure provided on the base structure via the seismic isolation device. It is an elevator device. The elevator apparatus moves along a first hoistway formed on the base structure and a second hoistway formed on the upper structure, an accelerometer provided on the base structure or the upper structure, Operation control means for performing a traffic control operation for evacuating the passengers in the car in accordance with the acceleration detected by the gauge, and a displacement gauge for detecting a relative displacement of the base structure and the upper structure in the horizontal direction. When the control operation is completed, the operation control means starts a diagnostic operation for determining the presence or absence of an abnormality based on the acceleration detected by the accelerometer and the relative displacement detected by the displacement meter.

  ADVANTAGE OF THE INVENTION According to this invention, in the elevator apparatus in which the hoistway is formed in both the foundation structure and the upper structure, it is possible to appropriately determine whether or not the automatic recovery after the earthquake is possible.

2 is a diagram illustrating an example of an elevator device according to Embodiment 1. FIG. FIG. 3 is a block diagram illustrating functions of a control device. 5 is a flowchart illustrating an operation example of the elevator device according to the first embodiment. It is a figure for explaining a function of a control device. 9 is a flowchart illustrating an example of a second control. It is a flowchart which shows the example of 3rd control. 5 is a flowchart illustrating an example of first control. FIG. 3 is a diagram illustrating an example of hardware resources of a control device. FIG. 9 is a diagram illustrating another example of the hardware resources of the control device.

  The present invention will be described with reference to the accompanying drawings. Duplicate descriptions will be simplified or omitted as appropriate. In each figure, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating an example of an elevator device according to the first embodiment. FIG. 1 shows an example in which an elevator device is provided in a building 1. The building 1 includes, for example, a base structure 2, a seismic isolation device 3, and an upper structure 4.

  The substructure 2 is provided on the ground 5. The seismic isolation device 3 is provided above the foundation structure 2. The upper structure 4 is provided on the base structure 2 via the seismic isolation device 3. The seismic isolation device 3 absorbs the swing of the base structure 2 and makes it difficult for the shake of the base structure 2 to be transmitted to the upper structure 4. Therefore, when an earthquake occurs, the swing of the upper structure 4 is smaller than the shake of the foundation structure 2.

  In the example shown in FIG. 1, the hoistway 6 is formed in the substructure 2. The hoistway 7 is formed in the upper structure 4. The hoistway 6 and the hoistway 7 are formed in the building 1 so as to extend straight up and down. That is, the hoistway 7 is disposed immediately above the hoistway 6. FIG. 1 shows an example in which a machine room 8 for an elevator is formed in the upper structure 4. The machine room 8 is arranged above the hoistway 7.

  The elevator device includes a car 9 and a counterweight 10. The car 9 moves up and down the hoistway 6 and the hoistway 7. For example, the car 9 passes through the height where the seismic isolation device 3 is arranged. The counterweight 10 moves up and down the hoistway 6 and the hoistway 7. The car 9 and the counterweight 10 are suspended from the hoistway 6 and the hoistway 7 by the main rope 11.

  The main rope 11 is wound around a drive sheave 13 of a hoisting machine 12. The car 9 moves according to the rotation of the drive sheave 13. The control device 14 controls the rotation and stop of the drive sheave 13. That is, the movement of the car 9 is controlled by the control device 14.

  The building 1 is provided with an accelerometer 15 and a displacement meter 16. The accelerometer 15 is an example of an earthquake sensor. FIG. 1 shows an example in which the accelerometer 15 is provided on the substructure 2. The accelerometer 15 may be provided on the upper structure 4. In the example shown in FIG. 1, the accelerometer 15 detects the acceleration of the substructure 2. The accelerometer 15 outputs a signal according to the detected acceleration. A signal from the accelerometer 15 is input to the control device 14.

  In the present embodiment, an example will be described in which the accelerometer 15 outputs signals in three stages according to the detected acceleration. For example, the accelerometer 15 outputs a first signal when detecting a specific first-level acceleration. When detecting the specific second-level acceleration, the accelerometer 15 outputs a second signal. The second level of acceleration is greater than the first level of acceleration. When detecting the specific third-level acceleration, the accelerometer 15 outputs a third signal. The third level of acceleration is greater than the second level of acceleration.

  The displacement gauge 16 detects a relative displacement in the horizontal direction between the substructure 2 and the upper structure 4. For example, the displacement meter 16 detects the amount of displacement of the upper structure 4 in the horizontal direction with respect to the substructure 2. The method by which the displacement meter 16 detects the relative displacement may be any method. The displacement meter 16 outputs a signal corresponding to the detected relative displacement. A signal from the displacement meter 16 is input to the control device 14. In the present embodiment, an example will be described in which the detection signal is output when the displacement meter 16 detects a relative displacement larger than a specific threshold. The displacement meter 16 may output a plurality of types of signals according to the level of the detected relative displacement.

  FIG. 2 is a block diagram illustrating functions of the control device 14. The control device 14 includes, for example, a storage unit 20, a condition determination unit 21, and an operation control unit 22. Information necessary for control is stored in the storage unit 20.

  The operation control unit 22 controls, for example, automatic operation, earthquake control operation, and diagnostic operation. The automatic operation is an operation in which the car 9 sequentially responds to the registered call. The earthquake control operation is an operation for evacuating the passengers in the car 9 immediately after the occurrence of an earthquake. The operation control unit 22 performs an earthquake control operation according to the acceleration detected by the accelerometer 15. For example, when at least one of the first signal, the second signal, and the third signal is output from the accelerometer 15, the operation control unit 22 performs the earthquake control operation. The diagnostic operation is an operation for determining the presence or absence of an abnormality. The diagnostic operation is performed by moving the car 9 after the earthquake control operation is completed.

  In the example shown in the present embodiment, since the car 9 moves on both the hoistway 6 and the hoistway 7, the start of the diagnostic operation is not determined based only on the acceleration detected by the accelerometer 15. The operation control unit 22 starts a diagnostic operation based on both the acceleration detected by the accelerometer 15 and the relative displacement detected by the displacement meter 16. Hereinafter, the functions of the elevator apparatus will be described in detail with reference to FIGS. FIG. 3 is a flowchart illustrating an operation example of the elevator apparatus according to the first embodiment. FIG. 4 is a diagram for explaining the function of the control device 14.

  The control device 14 determines whether the third signal has been input from the accelerometer 15 (S101). For example, when an acceleration larger than the third level acceleration acts on the accelerometer 15, the accelerometer 15 outputs a third signal. When the third signal is input from the accelerometer 15 (Yes in S101), the control device 14 performs the third control (S102).

  If the third signal has not been input from the accelerometer 15 (No in S101), the control device 14 determines whether the second signal has been input from the accelerometer 15 (S103). For example, when an acceleration smaller than the third level acceleration and larger than the second level acceleration acts on the accelerometer 15, the accelerometer 15 outputs a second signal. When the second signal is input without inputting the third signal from the accelerometer 15 (Yes in S103), the control device 14 performs the second control (S104).

  If the second signal has not been input from the accelerometer 15 (No in S103), the control device 14 determines whether the first signal has been input from the accelerometer 15 (S105). For example, when an acceleration smaller than the second level acceleration and larger than the first level acceleration acts on the accelerometer 15, the accelerometer 15 outputs a first signal. When the first signal is input without inputting the second signal from the accelerometer 15 (Yes in S105), the control device 14 performs the first control (S106).

  If none of the first signal, the second signal, and the third signal has been input from the accelerometer 15, the operation control unit 22 performs the automatic operation (S107).

  FIG. 5 is a flowchart illustrating an example of the second control. As described above, the second control is performed when the accelerometer 15 outputs the second signal without outputting the third signal.

  When the second signal is input from the accelerometer 15 to the control device 14, the operation control unit 22 starts the earthquake control operation (S201). In the earthquake control operation, the operation control unit 22 stops, for example, the car 9 on the nearest floor. When stopping the car 9, the operation control unit 22 opens the door. At this time, an announcement urging the user to get off the car 9 may be performed. After opening the door at the stopped floor, the operation control unit 22 closes the door after a certain period of time.

When the earthquake control operation ends, the condition determination unit 21 determines whether a specific start condition is satisfied (S202). The start condition is a condition for starting the diagnostic operation. For example, the start condition is satisfied when both of the following requirements 1 and 2 are satisfied.
Requirement 1: The second signal is output from the accelerometer 15 without the third signal being output.
Requirement 2: The relative displacement detected by the displacement meter 16 is smaller than a specific threshold value TH.

  When the second control is being performed, the above requirement 1 is satisfied. For this reason, when the second control is being performed, the start condition is satisfied if the relative displacement detected by the displacement meter 16 is smaller than the threshold value TH. On the other hand, if the relative displacement detected by the displacement meter 16 is not smaller than the threshold value TH, the start condition is not satisfied.

  When the condition determination unit 21 determines that the start condition is satisfied (Yes in S202), the operation control unit 22 starts the diagnostic operation (S203). In the diagnostic operation, it is determined whether an abnormality has been detected based on the acquired data (S204). When an abnormality is detected in the diagnostic operation (Yes in S204), the operation control unit 22 stops the elevator (S208). When the diagnostic operation ends without detecting any abnormality (Yes in S205), the operation control unit 22 returns the elevator to the automatic operation (S206).

  On the other hand, when the condition determination unit 21 determines that the start condition is not satisfied (No in S202), the operation control unit 22 stops the elevator as shown in FIG. 4 (S207). For example, even when the requirement 1 is satisfied, if the relative displacement detected by the displacement meter 16 is larger than the threshold value TH, the start condition is not satisfied and the elevator is stopped.

  When the elevator is stopped in S207, the process returns to S202. That is, the condition determination unit 21 determines again whether the start condition is satisfied. For example, consider the case where the displacement meter 16 detects the relative displacement shown at point B in FIG. 4 immediately after the end of the earthquake control operation. The value detected by the displacement meter 16 decreases over time. Therefore, even if the start condition is not satisfied immediately after the end of the earthquake control operation, if the relative displacement detected by the displacement meter 16 becomes smaller than the threshold value TH, the start condition is satisfied at that time. When the condition determination unit 21 determines that the start condition is satisfied (Yes in S202), the operation control unit 22 starts the diagnostic operation (S203). Note that a range A in FIG. 4 indicates a range where the start condition is satisfied.

  FIG. 6 is a flowchart illustrating an example of the third control. The third control is performed when the third signal is output from the accelerometer 15.

  When the third signal is input from the accelerometer 15 to the control device 14, the operation control unit 22 starts the earthquake control operation (S301). In S301, processing similar to the processing performed in S201 is performed.

  When the third signal is input from the accelerometer 15 to the control device 14, the above requirement 1 is not satisfied. Therefore, in the third control, the start condition is not satisfied regardless of the relative displacement detected by the displacement meter 16 (S302). In the third control, when the earthquake control operation ends, the operation control unit 22 stops the elevator (S303).

  FIG. 7 is a flowchart illustrating an example of the first control. The first control is performed when the first signal is output without outputting the second signal from the accelerometer 15.

  When the first signal is input from the accelerometer 15 to the control device 14, the operation control unit 22 starts the earthquake control operation (S401). In S401, processing similar to the processing performed in S201 is performed.

  If the second signal is not input from the accelerometer 15 to the control device 14, the above requirement 1 is not satisfied. Therefore, in the first control, the start condition is not satisfied regardless of the relative displacement detected by the displacement meter 16 (S402). In the first control, when the earthquake control operation ends, it is determined whether or not the relative displacement detected by the displacement meter 16 is smaller than the threshold value TH (S403).

  If the relative displacement detected by the displacement meter 16 is smaller than the threshold value TH (Yes in S403), it is determined whether a predetermined time has elapsed since the end of the earthquake control operation (S404). When the determination is Yes in S404, the operation control unit 22 returns the elevator to the automatic operation (S405).

  On the other hand, if the relative displacement detected by the displacement meter 16 is not smaller than the threshold value TH (No in S403), the operation control unit 22 stops the elevator (S406). When the elevator is stopped in S406, the process returns to S403. That is, it is determined again whether the relative displacement detected by the displacement meter 16 is smaller than the threshold value TH. For example, even if “No” is determined in S403 immediately after the earthquake control operation ends, if the relative displacement detected by the displacement meter 16 becomes smaller than the threshold value TH, “Yes” is determined in S403. In such a case, in S404, it is determined whether or not a predetermined time has elapsed since the determination in S403 was Yes.

  In the example shown in the present embodiment, in the second control, it is determined whether the diagnostic operation can be started based on both the acceleration detected by the accelerometer 15 and the relative displacement detected by the displacement meter 16. Is done. For this reason, in the elevator apparatus in which the hoistway is formed in both the base structure 2 and the upper structure 4, it is possible to appropriately determine whether or not the automatic recovery after the earthquake is possible.

  In the present embodiment, an example has been described in which the determination in S202 is performed again after the elevator is stopped in S207 in the second control. This is an example. In the second control, the process may be terminated by suspending the elevator in S207. As another example, after the elevator is stopped in S207, the process may be terminated when it is not determined to be Yes in S202 even after a certain time has elapsed.

  Similarly, in the present embodiment, an example in which the determination in S403 is performed again after the elevator is stopped in S406 in the first control has been described. This is an example. In the first control, the process may be terminated by suspending the elevator in S406. As another example, after the elevator is stopped in S406, the process may be terminated when it is not determined to be Yes in S403 after a certain period of time has elapsed.

  In the present embodiment, the components indicated by reference numerals 20 to 22 indicate the functions of the control device 14. FIG. 8 is a diagram illustrating an example of hardware resources of the control device 14. The control device 14 includes a processing circuit 30 including, for example, a processor 31 and a memory 32 as hardware resources. The function of the storage unit 20 is realized by the memory 32. The control device 14 implements the functions of the respective components indicated by reference numerals 21 to 22 by executing the program stored in the memory 32 by the processor 31.

  FIG. 9 is a diagram illustrating another example of the hardware resources of the control device 14. In the example illustrated in FIG. 9, the control device 14 includes a processing circuit 30 including, for example, a processor 31, a memory 32, and dedicated hardware 33. FIG. 9 illustrates an example in which some of the functions of the control device 14 are implemented by dedicated hardware 33. All of the functions of the control device 14 may be realized by the dedicated hardware 33.

  INDUSTRIAL APPLICABILITY The elevator apparatus according to the present invention is applicable to a building in which an upper structure is provided on a foundation structure via a seismic isolation device.

  1 Building, 2 Foundation Structure, 3 Seismic Isolation Device, 4 Superstructure, 5 Ground, 6 Hoistway, 7 Hoistway, 8 Machine Room, 9 Basket, 10 Counterweight, 11 Main Rope, 12 Hoist, 13 Driving sheave, 14 control device, 15 accelerometer, 16 displacement meter, 20 storage unit, 21 condition determination unit, 22 operation control unit, 30 processing circuit, 31 processor, 32 memory, 33 dedicated hardware

Claims (7)

A foundation structure;
A seismic isolation device provided on the foundation structure,
An upper structure provided on the base structure via the seismic isolation device,
An elevator device provided in a building having
A first hoistway formed in the base structure and a second hoistway formed in the upper structure;
An accelerometer provided on the base structure or the upper structure,
Operation control means for performing a traffic control operation to evacuate the passengers in the car according to the acceleration detected by the accelerometer,
A displacement meter that detects a relative displacement of the base structure and the upper structure in a horizontal direction,
With
An elevator apparatus that, upon completion of the traffic control operation, starts a diagnostic operation for determining the presence or absence of an abnormality based on the acceleration detected by the accelerometer and the relative displacement detected by the displacement meter. A determination unit configured to determine whether a specific start condition is satisfied;
The elevator apparatus according to claim 1, wherein the operation control means starts the diagnostic operation when the determination means determines that the start condition is satisfied. The accelerometer outputs a first signal when detecting a specific first level of acceleration, and outputs a second signal when detecting a specific second level of acceleration greater than the first level. When a large specific third level acceleration is detected, a third signal is output,
The operation control unit performs the control operation when at least one of the first signal, the second signal, or the third signal is output from the accelerometer,
The method according to claim 2, wherein the start condition is satisfied when the second signal is output without outputting the third signal from the accelerometer and the relative displacement detected by the displacement meter is smaller than a specific threshold. The elevator device as described.   Even if the second signal is output without outputting the third signal from the accelerometer, the start condition is not satisfied if the relative displacement detected by the displacement meter is larger than the threshold. The elevator device according to claim 3.   When the second signal is output without outputting the third signal from the accelerometer, the start condition is not satisfied because the relative displacement detected by the displacement meter is larger than the threshold. The elevator apparatus according to claim 4, wherein the start condition is satisfied when the relative displacement detected by the displacement meter thereafter becomes smaller than the threshold value.   The elevator apparatus according to any one of claims 3 to 5, wherein the start condition is not satisfied when the third signal is output from the accelerometer, regardless of the relative displacement detected by the displacement meter.   If the relative displacement detected by the displacement meter is smaller than the threshold when the first signal is output without outputting the second signal from the accelerometer, the operation control means may pass a predetermined time. The elevator apparatus according to any one of claims 3 to 6, wherein the elevator apparatus is returned to the automatic operation after performing the operation.

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