WO2020026384A1

WO2020026384A1 - Elevator apparatus

Info

Publication number: WO2020026384A1
Application number: PCT/JP2018/028905
Authority: WO
Inventors: 大樹福井; 健宮川
Original assignee: 三菱電機株式会社
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-02-06
Also published as: CN112469656A; CN112469656B; JP7080326B2; JPWO2020026384A1

Abstract

This elevator apparatus has a control device. During the occurrence of an earthquake, the control device determines the possibility of an autonomous diagnosis operation and/or a management operation on the basis of machine response acceleration occurring in a monitored machine, which is at least one elevator machine.

Description

Elevator equipment

The present invention relates to an elevator apparatus, and more particularly to control at the time of occurrence of an earthquake.

Conventionally, the strength of elevator equipment against earthquakes is designed based on the following equation.
a _e = a _i × m
a _i = a _g × β _i
Here, a _e is the acceleration generated in the elevator equipment. A _i is the building response acceleration on the i-th floor where the elevator equipment is located. M is the response magnification between the building and the elevator equipment, that is, the resonance magnification. A _g is the seismic acceleration input to the building. Β _i is the acceleration response magnification of the i-th floor of the building.

において In the above equation, the acceleration response magnification varies depending on the floor, so the required equipment strength also varies depending on the floor. However, elevator equipment, especially cars and counterweights, does not know at which floor they are located when an earthquake occurs. For this reason, the strength design of the car and the counterweight is performed on the assumption that the car and the counterweight are located on the floor where the floor response acceleration is maximum.

地震 Earthquake detectors are installed on the hoistway or other places in the building. Then, at the time of an earthquake, whether or not automatic diagnosis operation is possible is determined based on whether or not the output of the earthquake sensor has exceeded a reference value. The automatic diagnosis operation is an operation for automatically diagnosing whether normal operation of the elevator can be resumed after the earthquake.

Therefore, when the output of the earthquake sensor exceeds the reference value, it may be determined that the automatic diagnosis operation is not possible depending on the position of the car even though there is a margin before the strength limit. As a result, it takes time to resume normal operation of the elevator.

On the other hand, in the conventional method of restoring the elevator from the earthquake control operation, the evaluation data, which is the output data of the earthquake sensor, is transmitted from a plurality of specific elevators to the management department. In the conventional restoration method, the corresponding evaluation data is re-evaluated based on the installation condition of each specific elevator or each earthquake sensor, and the seismic intensity level at the place where each specific elevator is installed is estimated. Then, in the conventional restoration method, it is determined based on the estimated seismic intensity level whether or not the restoration operation of the general elevator is possible (for example, see Patent Document 1).

Japanese Patent No. 2596452

In the above-mentioned conventional method of restoring from seismic control operation, whether or not restoration operation is possible is determined based on the seismic intensity level. Despite this, it may be determined that the automatic diagnosis operation is not possible.

The present invention has been made to solve the above-described problems, and has as its object to obtain an elevator apparatus capable of selecting a more efficient driving method when an earthquake occurs.

An elevator device according to the present invention is a control device that determines whether at least one of an automatic diagnosis operation and a traffic control operation is possible based on a device response acceleration generated in a monitored device that is at least one elevator device when an earthquake occurs. It has.
Further, the elevator apparatus according to the present invention determines whether or not an earthquake-responsive operation, which is at least one of the automatic diagnosis operation and the control operation, based on a signal from an earthquake sensor set in a building when an earthquake occurs. And a control device for changing a criterion for determining whether or not to operate in response to the earthquake in accordance with the position of the hoisting body that moves up and down the hoistway.

According to the elevator apparatus of the present invention, a more efficient driving method can be selected when an earthquake occurs.

1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. It is a block diagram which shows the principal part of the elevator apparatus of FIG. FIG. 3 is a block diagram illustrating an example of a configuration of a control device in FIG. 2. 3 is a flowchart illustrating an operation of the control device in FIG. 2. FIG. 5 is a configuration diagram illustrating an elevator apparatus according to Embodiment 2 of the present invention. It is a block diagram which shows the principal part of the elevator apparatus of FIG. FIG. 10 is a block diagram showing a main part of an elevator apparatus according to Embodiment 3 of the present invention. FIG. 14 is a block diagram showing a main part of an elevator apparatus according to Embodiment 4 of the present invention. It is a block diagram which shows the elevator apparatus by Embodiment 5 of this invention. It is a block diagram which shows the principal part of the elevator apparatus of FIG. It is a graph which shows an example of the setting state of the floor response acceleration in the acceleration estimation part of FIG. It is a graph which shows an example of the relationship between the number of floors and the floor response acceleration in a high-rise building. FIG. 13 is a configuration diagram showing an elevator apparatus according to Embodiment 6 of the present invention. 14 is a graph illustrating a method of estimating a floor response acceleration by the building shake estimation device in FIG. 13. It is a block diagram which shows the principal part of the elevator apparatus of FIG. FIG. 14 is a configuration diagram illustrating an elevator apparatus according to Embodiment 7 of the present invention. FIG. 17 is a block diagram illustrating a main part of the elevator device of FIG. 16. FIG. 16 is a configuration diagram showing an elevator apparatus according to Embodiment 8 of the present invention. FIG. 19 is a block diagram illustrating a main part of the elevator device of FIG. 18. FIG. 15 is a configuration diagram showing an elevator apparatus according to Embodiment 9 of the present invention. It is a graph which shows an example of the relation between the response acceleration of a car to an earthquake, and the position of a car. It is a graph which shows an example of the relation between the response acceleration of the counterweight to the earthquake, and the position of the counterweight. 23 is a graph in which FIG. 21 and FIG. 22 are superimposed. 24 is a graph showing a magnification calculated based on FIG. 23. 9 is a graph showing the relationship between the response acceleration of a car and a counterweight to various input seismic waves, and the positions of the car and the counterweight. FIG. 21 is a block diagram showing a main part of the elevator apparatus of FIG. 20. FIG. 27 is an explanatory diagram illustrating a determination operation of a determination unit in FIG. 26. 27 is a flowchart showing the operation of the control device in FIG. 26. FIG. 22 is a graph in which the response acceleration of the counterweight obtained by inverting the response acceleration of the car in FIG. 21 is superimposed on the response acceleration of the car. 30 is a graph showing a magnification calculated based on FIG. 29. It is a graph which shows the magnification obtained by linearly approximating three points. It is a graph which shows the general response acceleration of a building of 60 m or less. It is a graph which shows the general response acceleration of a high-rise building exceeding 60m. 33 is a graph showing the response acceleration of FIG. 32 approximated by a straight line. 27 is a flowchart illustrating another determination operation of the determination unit in FIG. 26. 36 is a graph illustrating a magnification used in the determination operation in FIG. 35.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. In the figure, a building 1 is provided with a hoistway 2 and a machine room 3. The machine room 3 is provided above the hoistway 2.

か A car 4 and a counterweight 5 are provided in the hoistway 2. A pair of car guide rails 6 and a pair of counterweight guide rails 7 are installed in the hoistway 2. The car 4 moves up and down in the hoistway 2 along a pair of car guide rails 6. The counterweight 5 moves up and down in the hoistway 2 along a pair of counterweight guide rails 7.

巻 The machine room 3 is provided with a hoisting machine 8. The hoist 8 has a drive sheave 9, a motor (not shown), and a brake (not shown). The motor rotates the drive sheave 9. The brake keeps the drive sheave 9 stationary or brakes the rotation of the drive sheave 9.

The machine room 3 is provided with a deflector wheel 10. The deflecting wheel 10 is arranged at a distance from the drive sheave 9.

A suspension 11 is wound around the drive sheave 9 and the deflector wheel 10. As the suspension body 11, a plurality of ropes or a plurality of belts are used.

The car 4 is suspended by a suspension 11 on one side of the drive sheave 9. The counterweight 5 is suspended by a suspension 11 on the other side of the drive sheave 9. The car 4 and the counterweight 5 move up and down in the hoistway 2 by rotating the drive sheave 9.

制御 The control unit 12 is installed in the machine room 3. The control device 12 controls the operation of the car 4 by controlling the hoisting machine 8.

The devices installed in the car 4, the counterweight 5, and the machine room 3 are elevator devices. In these elevator devices, device response accelerations are generated when an earthquake occurs.

The car 4 is provided with a car sensor 13. The counterweight 5 is provided with a counterweight sensor 14. A machine room sensor 15 is provided on the floor of the machine room 3. An acceleration sensor is used as each of the car sensor 13, the counterweight sensor 14, and the machine room sensor 15.

The car sensor 13 generates a signal corresponding to the equipment response acceleration generated in the car 4 when an earthquake occurs. The counterweight sensor 14 generates a signal corresponding to the device response acceleration generated in the counterweight 5 when an earthquake occurs. The monitoring target devices of the first embodiment are a car 4 and a counterweight 5.

The machine room sensor 15 generates a signal according to the response acceleration generated on the floor of the machine room 3 when an earthquake occurs.

FIG. 2 is a block diagram showing a main part of the elevator apparatus of FIG. The control device 12 includes, as functional blocks, an operation control unit 16, an acceleration detection unit 17, a determination unit 18, a control operation control unit 19, and a diagnostic operation control unit 20. The operation control unit 16 controls the operation of the car 4.

The acceleration detecting unit 17 detects the device response acceleration generated in the car 4 based on a signal from the car sensor 13 when an earthquake occurs. In addition, the acceleration detecting unit 17 detects the device response acceleration generated in the counterweight 5 based on a signal from the counterweight sensor 14 when an earthquake occurs. In addition, the acceleration detecting unit 17 detects a response acceleration generated in the machine room 3 based on a signal from the machine room sensor 15 when an earthquake occurs.

The determination unit 18 performs an automatic diagnosis operation and a control operation based on the device response acceleration generated in the car 4 when the earthquake occurs, the device response acceleration generated in the counterweight 5, and the response acceleration generated in the machine room 3. Is determined.

The control device 12 is set with a plurality of thresholds serving as a criterion for determination by the determination unit 18. The thresholds include three thresholds related to the automatic diagnosis operation and three thresholds related to the control operation. The three thresholds related to the automatic diagnosis operation include a threshold of the car 4, a threshold of the counterweight 5, and a threshold of the machine room 3. The three thresholds related to the control operation include the threshold of the car 4, the threshold of the counterweight 5, and the threshold of the machine room 3.

The determination unit 18 can perform the automatic diagnosis operation when all of the device response acceleration of the car 4, the device response acceleration of the counterweight 5, and the response acceleration of the machine room 3 are equal to or less than the corresponding threshold value of the automatic diagnosis operation. Is determined. The determining unit 18 determines that at least one of the device response acceleration of the car 4, the device response acceleration of the counterweight 5, and the response acceleration of the machine room 3 is higher than the corresponding threshold value of the automatic diagnosis operation. It is determined that the automatic diagnosis operation cannot be performed.

The determining unit 18 can perform the control operation when all of the device response acceleration of the car 4, the device response acceleration of the counterweight 5, and the response acceleration of the machine room 3 are equal to or less than the corresponding threshold value of the control operation. Is determined. In addition, when any one or more of the device response acceleration of the car 4, the device response acceleration of the counterweight 5, and the response acceleration of the machine room 3 are higher than the corresponding threshold value of the control operation, It is determined that the control operation is impossible.

The control operation control unit 19 performs the control operation when the control unit 19 determines that the control operation is possible when the earthquake occurs. The control operation is an operation in which, when an earthquake occurs, the car 4 is safely stopped at the nearest floor and the door is opened.

The diagnostic operation control unit 20 performs the automatic diagnostic operation when the determination unit 18 determines that the automatic diagnostic operation is possible after the occurrence of the earthquake. The automatic diagnosis operation is an operation for automatically diagnosing whether normal operation of the elevator can be resumed after the earthquake. The automatic diagnosis operation and the control operation are operation corresponding to an earthquake.

(4) When it is determined that the automatic diagnosis operation cannot be performed, the control device 12 keeps the operation of the elevator device stopped.

FIG. 3 is a block diagram showing an example of the configuration of the control device 12 of FIG. The control device 12 includes a communication device 101, a processor 102, and a memory 103. The functions of the control device 12 are realized by the computer shown in FIG. The memory 103 stores a program for executing the function of the control device 12 and a plurality of thresholds serving as determination criteria in the determination unit 18. The processor 102 performs arithmetic processing according to a program stored in the memory 103.

FIG. 4 is a flowchart showing the operation of the control device 12 of FIG. When a seismic intensity equal to or higher than the set seismic intensity is detected, the control device 12 starts the operation in FIG. When the operation in FIG. 4 is started, the control device 12 first detects a device response acceleration of the monitored device in step S1.

Subsequently, in step S2, the control device 12 determines whether or not the control operation can be performed.

場合 If it is determined in step S2 that the control operation is not possible, the control device 12 stops the car 4 suddenly in step S3. When the car 4 is stopped, the control device 12 keeps the car 4 stopped. Thereafter, in step S4, control device 12 notifies the management room that the control operation has not been performed.

場合 If it is determined in step S2 that the control operation is possible, the control device 12 performs the control operation in step S5.

After that, the control device 12 determines whether or not the earthquake continues in step S6. That is, the control device 12 determines whether or not the shaking of the earthquake continues based on a signal from an earthquake sensor or the like provided inside or outside the building 1, and waits until the shaking stops.

(4) When the shaking of the earthquake stops, the control device 12 determines in step S7 whether or not the automatic diagnosis operation is possible.

If it is determined in step S7 that the automatic diagnosis operation is not possible, the control device 12 notifies the management room that the automatic diagnosis operation has not been performed in step S4.

If it is determined in step S7 that the automatic diagnosis operation is possible, the control device 12 performs the automatic diagnosis operation in step S8, and ends the process. The description of the operation after the execution of the automatic diagnosis operation is omitted.

では In such an elevator device, the control device 12 determines whether or not the automatic diagnosis operation and the control operation are possible based on the device response acceleration generated in the monitored device. Therefore, the state of the elevator equipment at the time of the occurrence of an earthquake can be more accurately determined, and a more efficient driving method can be selected at the time of the occurrence of an earthquake.

{Circle around (5)} Based on the signals from the car sensor 13 and the counterweight sensor 14, the control device 12 detects the corresponding device response acceleration. For this reason, more accurate device response acceleration can be detected.

制御 Control device 12 detects response acceleration generated in machine room 3 based on a signal from machine room sensor 15. Therefore, it is possible to more accurately estimate the device response acceleration generated in the hoisting machine 8, the control device 12, and the like.

In the first embodiment, the car sensor 13 and the counterweight sensor 14 are used, but only one of them may be used.

The monitoring target device is not limited to the car 4 and the counterweight 5, but may be the car guide rail 6, the counterweight guide rail 7, the hoisting machine 8, and the like.

Embodiment 2 FIG.
Next, FIG. 5 is a configuration diagram showing an elevator apparatus according to Embodiment 2 of the present invention. The control device 12 according to the second embodiment estimates the equipment response acceleration generated in the monitoring target equipment at the time of the occurrence of the earthquake, based on the building shaking information that is information on the shaking of the building 1 and the position information of the monitoring target equipment.

In addition, in the second embodiment, the earthquake detector 21 is installed on each floor of the building 1. An acceleration sensor is used as each earthquake sensor 21. In addition, the earthquake detectors 21 are installed on all floors within a range where the car 4 moves up and down, including the floor where the car 4 does not stop. The control device 12 uses a signal from each earthquake sensor 21 as building shake information.

監視 The monitoring target device of the second embodiment includes the car 4 and the counterweight 5. The car 4 and the counterweight 5 are elevating bodies that move up and down the hoistway 2. The control device 12 uses the position information of the car 4 to estimate the device response acceleration of the car 4. The control device 12 uses the position information of the counterweight 5 to estimate the device response acceleration of the counterweight 5.

FIG. 6 is a block diagram showing a main part of the elevator apparatus of FIG. The control device 12 includes, as functional blocks, an operation control unit 16, an acceleration estimation unit 22, a determination unit 18, a control operation control unit 19, and a diagnostic operation control unit 20. That is, the control device 12 of the second embodiment has an acceleration estimating unit 22 instead of the acceleration detecting unit 17 of the first embodiment.

The acceleration estimating unit 22 generates the equipment generated in the car 4 and the counterweight 5 based on the signal from each of the earthquake sensors 21, the position information of the car 4, and the position information of the counterweight 5 when the earthquake occurs. Estimate the response acceleration.

位置 The position information of the car 4 can be received from the operation control unit 16. The position information of the counterweight 5 can be calculated from the position of the car 4.

The acceleration estimation unit 22 estimates the device response acceleration generated in the car 4 based on a signal from the earthquake sensor 21 on the floor where the car 4 is located when an earthquake occurs. In addition, the acceleration estimating unit 22 estimates the device response acceleration generated in the counterweight 5 based on a signal from the earthquake sensor 21 on the floor where the counterweight 5 is located when an earthquake occurs.

The determining unit 18 uses the estimated value of the device response acceleration instead of the detected value of the device response acceleration in the first embodiment to determine whether the control operation and the automatic diagnosis operation are possible. That is, the control device 12 of the second embodiment estimates the device response acceleration in step S1 of FIG. Other configurations and operations are the same as those of the first embodiment.

In such an elevator apparatus, the state of the elevator equipment at the time of the occurrence of an earthquake can be more accurately determined using the building shake information and the position information of the monitoring target equipment without directly mounting the sensors on the car 4 and the counterweight 5. Can be determined. Thereby, when an earthquake occurs, a more efficient driving method can be selected.

制御 Moreover, since the control device 12 uses the signal from each earthquake sensor 21 as building shake information, it is possible to more accurately detect the shake of the building 1.

In addition, since the control device 12 uses the position information of the car 4 and the counterweight 5 to estimate the device response acceleration, it is possible to more accurately estimate the device response acceleration of the car 4 and the counterweight 5. .

Embodiment 3 FIG.
Next, FIG. 7 is a block diagram showing a main part of an elevator apparatus according to Embodiment 3 of the present invention. The control device 12 according to the third embodiment includes, as functional blocks, an operation control unit 16, an acceleration estimation unit 22, an equipment response magnification storage unit 23, a determination unit 18, a control operation control unit 19, and a diagnostic operation control unit 20. ing. The device response magnification storage unit 23 stores the value of the device response magnification for each monitored device in the memory 103.

The device response magnification is set according to the floor of the building 1 and the natural frequency of the monitored device. The device response magnification is also described in, for example, the document "Building Standards Act and related laws / regulations {Explanation of elevator technical standards / 2016 version" ".

The control device 12 uses the value of the device response magnification to estimate the device response acceleration of the monitored device.

Here, the shaking of the monitored equipment such as the car 4 and the counterweight 5 due to the earthquake is actually different from the shaking of the building 1 due to the earthquake. The factors include reduction of the swing of the car 4 by a car guide device (not shown), deformation of the car guide rail 6 receiving the swing of the car 4, deformation of the counterweight guide rail 7 receiving the swing of the counterweight 5, and the like. Can be

On the other hand, by using the value of the equipment response magnification, the building response to the earthquake can be more accurately converted to the elevator response to the earthquake.

When the monitoring target device is the car 4, the control device 12 calculates a signal from the earthquake sensor 21 on the floor closest to the position of the car 4 and a device response magnification of the car 4 on the floor closest to the position of the car 4. Based on this, the device response acceleration of the car 4 is estimated.

{Circle around (5)} When the monitoring target device is the counterweight 5, the control device 12 estimates the device response acceleration of the counterweight 5 in the same manner as the car 4.

When the monitoring target device is an elevator device fixed to the building 1, the control device 12 transmits a signal from the earthquake detector 21 on the floor closest to the position of the monitoring target device and a device of the monitoring target device. The device response acceleration is estimated based on the response magnification. Other configurations and operations are the same as those of the second embodiment.

In such an elevator apparatus, the value of the device response magnification is used to estimate the device response acceleration of the monitored device, so that the device response acceleration can be more accurately estimated.

Note that the acceleration estimating unit 22 may obtain the equipment response accelerations of all floors from the signals from the earthquake sensors 21 of all floors and the equipment response magnifications of all floors, and send the accelerations to the determination unit 18. In this case, the determination unit 18 may select the device response acceleration corresponding to the position of the monitoring target device and compare it with the corresponding threshold.

Embodiment 4 FIG.
Next, FIG. 8 is a block diagram showing a main part of an elevator apparatus according to Embodiment 4 of the present invention. The control device 12 according to the fourth embodiment includes, as functional blocks, an operation control unit 16, an acceleration estimation unit 22, an equipment vibration model storage unit 24, a determination unit 18, a control operation control unit 19, and a diagnostic operation control unit 20. ing. The device vibration model storage unit 24 stores a vibration model for each monitored device in the memory 103.

{Circle around (1)} The control device 12 estimates the device response acceleration using the vibration model of the monitored device with the building shake information as an input.

When the monitoring target device is the car 4, the control device 12 receives the signal from the earthquake sensor 21 on the floor closest to the position of the car 4 as an input, and uses the vibration model of the car 4 to generate the device of the car 4. Estimate the response acceleration.

When the monitored device is an elevator device fixed to the building 1, the control device 12 inputs a signal from the earthquake sensor 21 on the floor closest to the position of the monitored device, and The device response acceleration is estimated using the vibration model of the device. Other configurations and operations are the same as those of the second embodiment.

In such an elevator apparatus, since the vibration model is used to estimate the device response acceleration of the monitored device, the device response acceleration can be more accurately estimated.

In the second to fourth embodiments, signals from the earthquake sensors 21 on all floors are input to the acceleration estimation unit 22. However, after acquiring the position of the car 4 and the position of the counterweight 5, the acceleration estimating unit 22 may selectively acquire only the signal from the earthquake sensor 21 on the required floor. Thereby, the amount of information handled by the control device 12 can be reduced.

Embodiment 5 FIG.
Next, FIG. 9 is a configuration diagram showing an elevator apparatus according to Embodiment 5 of the present invention. In the fifth embodiment, the earthquake detectors 21 are installed on some floors of the building 1 instead of all floors. The control device 12 obtains a floor response acceleration that is a response acceleration to an earthquake on the floor where the earthquake sensor 21 is installed, based on a signal from the earthquake sensor 21. In addition, the control device 12 uses the floor response acceleration as the building shake information.

When the monitoring target device is located on the floor where the earthquake sensor 21 is installed, the control device 12 detects the acceleration detected by the corresponding earthquake sensor 21 as the floor response acceleration.

When the monitored device is not installed on the floor where the earthquake sensor 21 is installed, the control device 12 estimates the floor response acceleration of the floor where the monitored device is installed from the detected floor response acceleration. .

The building 1 is divided into a plurality of zones in the vertical direction, here, zones 1 to 3. Each of the zones 1 to 3 includes one floor where the earthquake sensor 21 is installed.

FIG. 10 is a block diagram showing a main part of the elevator apparatus of FIG. 9, which is the same as FIG. 6 except for the number of earthquake sensors 21. The control device 12 uses a signal from the earthquake detector 21 as building shake information.

However, the acceleration estimating unit 22 of the fifth embodiment assumes that the same building shake occurs in each of the zones 1 to 3 as shown in FIG. Thereby, the acceleration estimating unit 22 estimates the floor response acceleration of the floor where the earthquake sensor 21 is not installed. Other configurations and operations are the same as those of the second embodiment.

In such an elevator device, even when the earthquake sensor 21 is installed only on some floors, the elevator device at the time of the occurrence of an earthquake using the signal from the earthquake sensor 21 and the position information of the monitoring target device. Can be determined more accurately. Thereby, when an earthquake occurs, a more efficient driving method can be selected.

Especially, when the building 1 is a high-rise building, it is difficult to install the earthquake detectors 21 on all floors, so the configuration of the fifth embodiment is effective.

高 In a high-rise building of 60 m or more, the response of the building to the earthquake, that is, the floor response acceleration is calculated in advance when designing the building. FIG. 12 is a graph illustrating an example of the relationship between the floor response acceleration and the floor number in a high-rise building. In FIG. 12, a square indicates a location where the earthquake sensor 21 is installed.

、 Based on the calculation results as shown in FIG. 12, it is preferable to install the earthquake sensor 21 on the floor where the floor response acceleration is highest in each zone. This makes it possible to more reliably detect the maximum swing occurring in the building 1 and the elevator equipment.

In FIG. 9, the seismic detector 21 is installed at the lowest floor of each of the zones 1 to 3. However, the floor where the earthquake detector 21 is installed in each of the zones 1 to 3 is not limited to the lowest floor.

In FIG. 9, one earthquake sensor 21 is installed in each of zones 1 to 3. However, two or more earthquake sensors 21 may be installed in each of the zones 1 to 3 in order to improve detection accuracy.

The number of zones may be two or four or more.

In FIG. 10, the output of the earthquake sensor 21 is directly input to the acceleration estimating unit 22. However, the acceleration estimating unit 22 may estimate the device response acceleration using the value of the device response magnification, as in the third embodiment. Further, the acceleration estimating unit 22 may estimate the device response acceleration using the vibration model of the monitored device, as in the fourth embodiment.

Embodiment 6 FIG.
Next, FIG. 13 is a configuration diagram showing an elevator apparatus according to Embodiment 6 of the present invention. In the sixth embodiment, the earthquake detectors 21 are installed on two or more floors of the building 1, here on three floors. In the machine room 3, a control device main body 12A is installed. The control device main body 12A is the same as the control device 12 of the third embodiment.

建物 On the lowest floor of the building 1, a building swing estimating unit 25 is installed. The building shake estimation unit 25 is configured separately from the control device main body 12A. The building shake estimation unit 25 is configured by, for example, a computer.

The control device 12 according to the sixth embodiment includes a control device main body 12A and a building shake estimation unit 25.

{Circle around (5)} In the event of an earthquake, the building shake estimation unit 25 calculates the floor response acceleration of the floor where the monitoring target device is installed, based on the signal from the earthquake sensor 21.

FIG. 14 is a graph showing a method of estimating the floor response acceleration by the building shake estimating unit 25 of FIG. In FIG. 14, a square indicates a location where the earthquake sensor 21 is installed. In the sixth embodiment, the building shake estimating unit 25 interpolates between the values of the floor response acceleration detected by the earthquake sensor 21 with a straight line.

FIG. 15 is a block diagram showing a main part of the elevator apparatus of FIG. The signal from each earthquake sensor 21 is input to the building shake estimation unit 25. The building swing estimation unit 25 obtains floor response accelerations of all floors of the building 1 using an estimation method as shown in FIG.

情報 Information on the floor response acceleration of all floors is input to the acceleration estimating unit 22. Other configurations and operations are the same as those of the third embodiment.

では In such an elevator device, the floor response acceleration of all floors is estimated by the building shake estimating unit 25 based on signals from two or more earthquake sensors 21 set in the building 1.

For this reason, even when the earthquake sensor 21 is installed only on some floors, the state of the elevator equipment at the time of the earthquake can be further improved using the signal from the earthquake sensor 21 and the position information of the monitored device. It can be determined accurately. Thereby, when an earthquake occurs, a more efficient driving method can be selected.

In the sixth embodiment, the floor response accelerations of all floors are input from the building shake estimation unit 25 to the acceleration estimation unit 22. However, when the monitoring target device is the car 4 and the counterweight 5, the position information of the car 4 and the counterweight 5 is input to the building swing estimation unit 25, and only the floor response acceleration of the floor corresponding to the position information is calculated. It may be input to the acceleration estimation unit 22.

In this case, the position information of the car 4 may be obtained from the control device 12 or from another position sensor. The position information of the counterweight 5 may be calculated by the building swing estimating unit 25 from the position information of the car 4 or may be acquired from another position sensor.

If the monitoring target device is not an elevating body, the position information of the monitoring target device may be set in the building shake estimation unit 25 in advance, and only the required floor response acceleration may be input to the acceleration estimation unit 22.

The acceleration estimating unit 22 may determine the equipment response accelerations of all floors from the floor response accelerations of all floors and the equipment response magnifications of all floors, and send the accelerations to the determination unit 18. In this case, the determination unit 18 may select the device response acceleration corresponding to the position of the monitoring target device and compare it with the corresponding threshold.

In the sixth embodiment, the acceleration estimating unit 22 estimates the device response acceleration using the device response magnification. However, the acceleration estimating unit 22 may estimate the device response acceleration using the vibration model of the monitored device, as in the fourth embodiment.

Embodiment 7 FIG.
Next, FIG. 16 is a configuration diagram showing an elevator apparatus according to Embodiment 7 of the present invention. FIG. 17 is a block diagram showing a main part of the elevator apparatus of FIG. In Embodiment 7, the earthquake detector 21 is installed only on one floor of the building 1.

The building shake estimation unit 25 has a building vibration model storage unit 26 as a functional block. The building vibration model storage unit 26 stores the vibration model of the building 1 in the memory of the building shake estimation unit 25.

{Circle around (5)} The building shake estimating unit 25 obtains floor response accelerations of all floors based on the signal from the earthquake sensor 21. At this time, the earthquake sensor 21 is installed only on one floor, but the building shake estimation unit 25 receives the signal from the earthquake sensor 21 as an input, and uses the vibration model of the building 1 to detect all floors. The floor response acceleration of is calculated. Then, the information on the floor response acceleration is output to the control device main body 12A.

The acceleration estimation unit 22 estimates the device response acceleration generated in the monitored device based on the input floor response acceleration and the position information of the monitored device when an earthquake occurs. Other configurations and operations are the same as in the sixth embodiment.

In such an elevator apparatus, the floor response acceleration of each floor is estimated using the vibration model of the building 1. Therefore, the floor response acceleration of each floor can be estimated from the signal from at least one earthquake sensor 21.

The building shake estimating unit 25 of the seventh embodiment may use signals from two or more earthquake sensors 21.

In the seventh embodiment, the floor response accelerations of all floors are input from the building shake estimation unit 25 to the acceleration estimation unit 22. However, when the monitoring target device is the car 4 and the counterweight 5, the position information of the car 4 and the counterweight 5 is input to the building swing estimation unit 25, and only the floor response acceleration of the floor corresponding to the position information is calculated. It may be input to the acceleration estimation unit 22.

Embodiment 8 FIG.
Next, FIG. 18 is a configuration diagram showing an elevator apparatus according to Embodiment 8 of the present invention. FIG. 19 is a block diagram showing a main part of the elevator apparatus of FIG. In the eighth embodiment, the car sensor 13 is provided on the car 4 as the first elevating body. However, the counterweight 5 serving as the second elevating body is not provided with the counterweight sensor 14. Further, a machine room sensor 15 is provided in the machine room 3.

The building shake estimation unit 25 obtains the floor response acceleration of all floors using the vibration model of the building 1 with the signal from the earthquake sensor 21 as an input, as in the seventh embodiment. Signals from the car sensor 13 and the machine room sensor 15 are input to the control device main body 12A.

The acceleration estimation unit 22 detects the device response acceleration of the car 4 as the monitoring target device based on the signal from the car sensor 13. Further, the acceleration estimating unit 22 estimates the device response acceleration of the monitoring target device installed in the machine room 3 based on the signal from the machine room sensor 15.

{Circle around (2)} The acceleration estimating unit 22 estimates the device response acceleration of the counterweight 5 that is the monitoring target device based on the building shake information from the building shake estimating unit 25 and the position information of the counterweight 5. Other configurations and operations are the same as those of the first embodiment.

によって With such a configuration as well, it is possible to more accurately determine the state of elevator equipment at the time of an earthquake and to select a more efficient driving method at the time of an earthquake.

Normally, the counterweight 5 has no wiring, but the car 4 and the machine room 3 have wiring already installed. For this reason, the car 4 is provided with a car sensor 13 to directly detect the device response acceleration of the car 4. Further, a machine room sensor 15 is provided in the machine room 3, and the device response acceleration of the monitoring target device installed in the machine room 3 is more accurately estimated.

On the other hand, the counterweight 5 estimates the device response acceleration by the same method as in the seventh embodiment. This eliminates the need to install new wiring on the counterweight 5 and can suppress an increase in cost.

In the eighth embodiment, the device response acceleration of the counterweight 5 is estimated by the same method as in the seventh embodiment, but may be estimated by the methods of the second to sixth embodiments.

It is also possible that the counterweight sensor 5 is provided on the counterweight 5 and the car sensor 13 is not provided on the car 4. That is, the counterweight 5 may be a first elevating body, and the car 4 may be a second elevating body.

設置 Further, the installation location of the building shake estimation unit 25 of the sixth to eighth embodiments is not particularly limited.

In addition, the building shake estimating unit 25 of the sixth to eighth embodiments may be integrated with the control device 12. That is, the function of the building shake estimation unit 25 may be provided to the control device 12.

Embodiment 9 FIG.
Next, FIG. 20 is a configuration diagram showing an elevator apparatus according to Embodiment 9 of the present invention. The control device 31 of the ninth embodiment determines whether or not the control operation and the automatic diagnosis operation are possible based on a signal from the earthquake sensor 21 when an earthquake occurs. In addition, the control device 31 changes the criterion for determining whether or not the control operation and the automatic diagnosis operation are possible, in accordance with the position of the car 4 as the lifting body and the position of the counterweight 5 as the lifting body.

{Circle around (4)} The control device 31 changes the magnification by which a value used for determining whether or not the control operation and the automatic diagnosis operation are possible is determined according to the position of the car 4 and the position of the counterweight 5.

ため Here, the sway of the building 1 when an earthquake occurs differs depending on the floor, and the sway of the elevator equipment also differs depending on the floor where the equipment is located. Therefore, the swing of the car 4 at the time of the occurrence of the earthquake, that is, the response acceleration also differs depending on the floor where the car 4 is located at the time of the occurrence of the earthquake, for example, as shown in FIG.

However, since it is not known at which floor the car 4 is located at which floor the earthquake occurs, the strength of the car 4 is designed for the maximum shaking. Here, it is assumed that the response acceleration that is used in the strength design and does not break the car 4 is an allowable value. For example, in FIG. 21, the response acceleration at the lowest floor is an allowable value.

応答 Thus, while the response acceleration that the car 4 can tolerate is a fixed value, the actual swing of the car 4 depends on the floor on which the car 4 is located. For this reason, the magnitude of the earthquake that the car 4 can withstand changes depending on the position of the car 4 when the earthquake occurs.

For example, in FIG. 21, when the car 4 is located on the middle floor, the car 4 can withstand a larger earthquake stronger than the case where the car 4 is located on the lowest floor. Can be.

This is the same for the counterweight 5. Then, when the response acceleration of the car 4 shown in FIG. 21 and the response acceleration of the counterweight 5 shown in FIG. As shown in FIG. 23, when the car 4 is located on the middle floor, the response accelerations of both the car 4 and the counterweight 5 are small, so that the car 4 and the counterweight 5 are not affected by a larger earthquake. Can withstand.

From the above, if the maximum response acceleration in FIG. 23 is divided by the minimum response acceleration, a magnification that changes depending on the floor can be calculated as shown in FIG. In FIG. 24, the magnification is higher when the car 4 is located on the middle floor than when the car 4 is located at the same height as the ground surface.

However, the shaking of the building 1 at the time of the earthquake actually varies depending on the type and magnitude of the input seismic wave. Therefore, the swings of the car 4 and the counterweight 5 actually differ depending on the seismic wave, and do not always become the swings shown in FIGS. 21 and 22.

Therefore, in an actual design, as shown in FIG. 25, the response acceleration of the car 4 and the counterweight 5 to various input seismic waves is calculated. Then, the maximum value of the calculation result is set as the response acceleration of the car 4 and the counterweight 5, and the magnification is calculated from the response acceleration.

Note that the magnification is calculated in advance in accordance with the building 1 and the elevator device when the elevator device is installed.

FIG. 26 is a block diagram showing a main part of the elevator apparatus of FIG. The control device 31 includes, as functional blocks, an operation control unit 16, a magnification storage unit 32, a determination unit 33, a traffic control operation control unit 19, and a diagnostic operation control unit 20. The operation control unit 16, the control operation control unit 19, and the diagnostic operation control unit 20 are the same as those in the first embodiment.

The magnification storage unit 32 stores the magnification calculated as described above in the memory 103 of the control device 31. The determining unit 33 determines whether the control operation and the automatic diagnosis operation are possible based on the signal from the earthquake sensor 21, the position of the car 4, and the magnification.

FIG. 27 is an explanatory diagram illustrating the determination operation of the determination unit 33 in FIG. An allowable value for the control operation and an allowable value for the automatic diagnosis operation are set in the determination unit. The determination unit 33 selects a magnification according to the position of the car 4 when an earthquake occurs.

{Circle around (4)} When the earthquake occurs, the determination unit 33 multiplies the permissible value for the traffic control operation by the selected magnification to obtain a first threshold value for the propriety of the traffic control operation. In addition, when an earthquake occurs, the determination unit 33 multiplies the allowable value for the automatic diagnosis operation by the selected magnification to obtain a second threshold value regarding whether or not the automatic diagnosis operation is possible.

For example, when the magnification changes as shown in FIG. 24, the threshold value when the car 4 is located at the same height as the ground surface is different from the threshold value when the car 4 is located on the middle floor. ing. Specifically, the threshold value when the car 4 is located on the middle floor is higher than the threshold value when the car 4 is located at the same height as the ground surface.

(4) The determining unit 33 compares the output value from the earthquake sensor 21 with the first threshold value, and determines that the control operation is possible when the output value is equal to or less than the first threshold value. In addition, when the output value exceeds the first threshold, the determination unit 33 determines that the control operation is not possible.

(4) The determining unit 33 compares the output value from the earthquake sensor 21 with the second threshold value, and determines that the automatic diagnosis operation is possible when the output value is equal to or less than the second threshold value. In addition, when the output value exceeds the second threshold, the determination unit 33 determines that the automatic diagnosis operation is not possible.

FIG. 28 is a flowchart showing the operation of the control device 31 of FIG. When a seismic intensity equal to or higher than the set seismic intensity is detected, control device 31 starts the operation in FIG. When the operation in FIG. 28 is started, the control device 31 first detects the position of the car 4 in step S11.

Subsequently, in step S12, the control device 31 selects a magnification corresponding to the position of the car 4. Then, the control device 31 determines in step S2 whether or not the control operation is possible.

場合 If it is determined in step S2 that the control operation is not possible, the control device 31 stops the car 4 suddenly in step S3. Thereafter, in step S4, control device 31 notifies the control room that the control operation has not been performed.

場合 If it is determined in step S2 that the control operation is possible, the control device 31 performs the control operation in step S5.

After that, in step S6, the control device 31 determines whether or not the earthquake continues. That is, the control device 31 determines whether or not the shaking of the earthquake continues based on the signal from the earthquake sensor 21 and waits until the shaking stops.

When the shaking of the earthquake has subsided, the control device 31 determines in step S7 whether or not the automatic diagnosis operation can be performed.

If it is determined in step S7 that the automatic diagnosis operation is not allowed, the control device 31 notifies the management room that the automatic diagnosis operation has not been performed in step S4.

If it is determined in step S7 that the automatic diagnosis operation is possible, the control device 31 performs the automatic diagnosis operation in step S8, and ends the process. The description of the operation after the execution of the automatic diagnosis operation is omitted. Other configurations and operations are the same as those in the first embodiment.

では In such an elevator device, the control device 31 changes the first threshold value regarding the availability of the control operation and the second threshold value regarding the availability of the automatic diagnosis operation according to the position of the car 4. Therefore, when an earthquake occurs, it is possible to select a more efficient operation method of the elevator apparatus.

閾値 Also, the threshold value when the car 4 is located at the same height as the ground surface is different from the threshold value when the car 4 is located on the middle floor. Therefore, when an earthquake occurs, it is possible to select a more efficient operation method of the elevator apparatus.

制御 In addition, the control device 31 sets a threshold value based on the maximum value of each floor among the plurality of response accelerations of the car 4 and the counterweight 5 on each floor calculated for a plurality of different input seismic waves. Therefore, it is possible to select a more efficient operation method of the elevator apparatus for any earthquake.

In the above example, the response acceleration of the car 4 and the response acceleration of the counterweight 5 were separately calculated. However, in a general elevator apparatus, the car 4 and the counterweight 5 have a reversed positional relationship. Therefore, the response acceleration of the car 4 as shown in FIG. 21 is inverted upside down and used as the response acceleration of the counterweight 5.

Then, the response acceleration of the counterweight 5 is superimposed on the response acceleration of the car 4 as shown in FIG. 29, whereby the response acceleration of the car 4 and the counterweight 5 is obtained. Based on the response acceleration, the magnification can be calculated as shown in FIG.

倍率 The magnification shown in FIG. 30 is symmetrical in the height direction with the middle floor as the center.

Assuming that the swing of the car 4 and the swing of the counterweight 5 are substantially equal, the magnification is vertically symmetric as shown in FIG. Therefore, as shown in FIG. 31, the magnification can be obtained by linear approximation based on the values of three points. The three points are a magnification corresponding to the response acceleration of the car 4 on the lowest floor, a magnification corresponding to the response acceleration of the car 4 on the intermediate floor to be turned back, and a magnification corresponding to the response acceleration of the car 4 on the top floor. It is.

In addition, the shaking of the building 1 during the earthquake usually changes according to the height of the building 1. Generally, in a building of 60 m or less, the maximum acceleration occurs on the top floor as shown in FIG. On the other hand, in a high-rise building exceeding 60 m, as shown in FIG. 33, the acceleration decreases from the ground to the top floor.

In FIG. 25, the magnification is calculated on the basis of the detailed building shake. However, especially when the building 1 is 60 m or less, data on the building shake may not be available. In this case, the magnification can be set based on the response acceleration of the building 1 to the earthquake set according to the height of the building 1. That is, when the building 1 is 60 m or less, the magnification can be set based on the general building shake data shown in FIG.

倍率 Further, by approximating the data of the building shaking shown in FIG. 32 with a straight line as shown in FIG. 34, the magnification can be easily calculated.

Thus, even when there is no detailed data on building shaking, a general-purpose magnification can be obtained using general building shaking data.

For a high-rise building exceeding 60 m, the magnification may be set based on the data of the building shake shown in FIG. 33 or the data obtained by approximating the straight line in FIG.

In FIG. 27, the allowable value is multiplied by the magnification. However, as shown in FIG. 35, the same effect can be obtained by multiplying the signal from the seismic sensor 21, that is, the sensor output, by the magnification according to the position of the car 4. Is obtained. As shown in FIG. 36, the magnification in this case has a shape obtained by inverting the magnification shown in FIG. 27 from side to side.

In the above example, the magnification is changed according to the position of the car 4, but the magnification may be changed according to the position of the counterweight 5.

Further, in the above example, the value used for determining the possibility of the earthquake response operation is multiplied by the magnification. However, the method of changing the determination standard of the possibility of the earthquake response operation according to the position of the car 4 is a method of multiplying the magnification. Not limited.

In the first to ninth embodiments, whether the automatic diagnosis operation and the control operation are permitted or not is determined. However, only one of the two may be determined.

制御 Also, the control device that determines whether or not to operate in response to an earthquake may be separated from a device that controls normal operation of the elevator device.

The present invention can also be applied to a case where a plurality of elevator devices are installed in the same building. In this case, by determining whether or not the earthquake-compatible operation can be performed for each elevator device, a more efficient operation method of the elevator device can be selected for the entire building 1 when an earthquake occurs.

The layout of the entire elevator apparatus is not limited to the layout shown in FIG. For example, the present invention can be applied to a 2: 1 roping type elevator apparatus.

The present invention can be applied to various types of elevators. For example, the present invention can be applied to a machine roomless elevator, a double deck elevator, or a one-shaft multi-car system. The one-shaft multi-car system is a system in which an upper car and a lower car disposed directly below an upper car independently move up and down a common hoistway.

1 building, 2 hoistway, 4 car (monitoring equipment, first hoisting body), 5 counterweight (monitoring equipment, second hoisting body), 12, 31 control device, 13 car sensor, 14 balancing Weight sensor, 15 machine room sensor, 21 earthquake detector.

Claims

An elevator apparatus comprising: a control device that determines whether or not at least one of an automatic diagnosis operation and a control operation is performed based on a device response acceleration generated in a monitored device that is at least one elevator device when an earthquake occurs.
A sensor installed on the monitored device and generating a signal corresponding to the device response acceleration;
The elevator apparatus according to claim 1, wherein the control device detects the device response acceleration based on a signal from the sensor.
2. The control device according to claim 1, wherein the control device estimates the device response acceleration based on building shaking information that is information on a shaking of a building where the monitoring target device is installed, and position information of the monitoring target device. 3. Elevator equipment.
The elevator apparatus according to claim 3, wherein the control device uses a signal from an earthquake detector installed in the building as the building shake information.
5. The controller according to claim 3, wherein the controller uses a value of a device response magnification set according to a floor of the building and a natural frequency of the monitored device to estimate the device response acceleration. 6. An elevator apparatus according to claim 1.
5. The elevator device according to claim 3, wherein the control device estimates the device response acceleration using the building shake information as an input and using a vibration model of the monitored device. 6.
The control device obtains a floor response acceleration that is a response acceleration to an earthquake at a floor where the earthquake sensor is installed, based on a signal from the earthquake sensor, and uses the floor response acceleration as the building shake information. The elevator apparatus according to claim 4, wherein
The elevator apparatus according to claim 7, wherein the control device obtains the floor response acceleration by using a signal from the earthquake sensor as an input and using a vibration model of the building.
The monitoring target device includes a first elevating body and a second elevating body that move up and down the hoistway,
The first elevating body is provided with a sensor that generates a signal corresponding to the device response acceleration of the first elevating body,
The control device includes:
Based on the signal from the sensor, the device response acceleration of the first lifting body is detected,
The device response acceleration of the second lifting body is estimated based on building swing information that is information on a swing of a building in which the monitoring target device is installed and a position of the second lifting body. 2. The elevator apparatus according to claim 1.
At the time of an earthquake, based on a signal from an earthquake detector set in the building, the elevating body that determines whether or not to perform an earthquake-response operation, which is at least one of automatic diagnosis operation and control operation, and moves up and down the hoistway An elevator apparatus, comprising: a control device that changes a criterion for determining whether or not the earthquake-response operation is possible according to the position of the elevator.
11. The elevator apparatus according to claim 10, wherein the control device changes a magnification by which a value used for determining whether or not the earthquake-response operation is permitted is multiplied according to a position of the elevator.
The elevator apparatus according to claim 11, wherein the magnification when the elevating body is located at the same height as the ground surface is different from the magnification when the elevating body is located on an intermediate floor.
The elevator according to claim 11 or 12, wherein the magnification is set based on a maximum value of each floor among a plurality of response accelerations of the elevator on each floor calculated for a plurality of different input seismic waves. apparatus.
The elevating body includes a car and a counterweight,
The elevator apparatus according to any one of claims 11 to 13, wherein the magnification at each floor is set using a maximum value of a response acceleration of the car to an earthquake and a response acceleration of the counterweight.
The elevator apparatus according to claim 14, wherein the response acceleration of the counterweight is obtained by inverting the response acceleration of the car in the height direction.
The elevator apparatus according to claim 11, wherein the magnification is set by linearly approximating the magnification when the elevating body is located on the lowest floor, the middle floor, and the top floor of the building.
The elevator apparatus according to claim 11, wherein the magnification is set based on a response acceleration of the building to an earthquake set according to a height of the building.