JP7080326B2 - Elevator equipment - Google Patents

Description

The present invention relates to an elevator device, particularly to control in the event 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
However, a _e is an acceleration generated in the elevator equipment. Further, a _i is the building response acceleration on the i-floor where the elevator equipment is located. Further, m is a response magnification between the building and the elevator equipment, that is, a resonance magnification. Further, a _g is the seismic acceleration input to the building. Β _i is the acceleration response magnification of the i floor of the building.

In the above equation, since the acceleration response magnification changes depending on the floor, the required equipment strength also changes depending on the floor. However, it is not known on which floor the elevator equipment, especially the car and the counterweight, is located at the time of the earthquake. Therefore, the strength design of the car and the counterweight is carried out on the assumption that it is located on the floor where the floor response acceleration is maximum.

In addition, seismic detectors are installed on hoistways or elsewhere in the building. Then, in the event of an earthquake, whether or not automatic diagnostic operation is possible is determined based on whether or not the output of the earthquake detector exceeds the reference value. The automatic diagnostic operation is an operation that automatically diagnoses whether or not the normal operation of the elevator can be resumed after an earthquake.

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

On the other hand, in the conventional recovery method from the seismic control operation of the elevator, the evaluation data, which is the output data of the seismic detector, is transmitted from a plurality of specific elevators to the management department. Further, in the conventional restoration method, the corresponding evaluation data is re-evaluated based on the installation conditions of each specific elevator or each seismic detector, 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 whether or not the restoration operation of the general elevator is possible based on the estimated seismic intensity level (see, for example, Patent Document 1).

Japanese Patent No. 2596452

In the conventional recovery method from seismic control operation as described above, the possibility of recovery operation is determined based on the seismic intensity level, so it is not possible to utilize the strength margin depending on the position of the car, and there is a margin to the strength limit. Despite this, it may be determined that automatic diagnostic operation is not possible.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain an elevator device capable of selecting a more efficient operation method in the event of an earthquake.

The elevator device according to the present invention is a control device that determines whether or not at least one of automatic diagnostic operation and control operation is possible based on the device response acceleration generated in at least one monitored device, which is an elevator device, at the time of an earthquake. The control device estimates the device response acceleration based on the building shaking information, which is information on the shaking of the building in which the monitored device is installed, and the position information of the monitored device . Further, the elevator device according to the present invention determines whether or not an earthquake-responsive operation, which is at least one of automatic diagnosis operation and control operation, is possible based on a signal from an earthquake detector set in a building when an earthquake occurs. In addition, it is equipped with a control device that changes the criteria for determining whether or not earthquake-responsive operation is possible according to the position of the elevating body that moves up and down the hoistway. , Change according to the position of the elevating body .

According to the elevator device of the present invention, a more efficient operation method can be selected in the event of an earthquake.

It is a block diagram which shows the elevator apparatus by Embodiment 1 of this invention. It is a block diagram which shows the main part of the elevator apparatus of FIG. It is a block diagram which shows an example of the structure of the control device of FIG. It is a flowchart which shows the operation of the control device of FIG. It is a block diagram which shows the elevator apparatus by Embodiment 2 of this invention. It is a block diagram which shows the main part of the elevator apparatus of FIG. It is a block diagram which shows the main part of the elevator apparatus by Embodiment 3 of this invention. It is a block diagram which shows the main part of the elevator apparatus according to Embodiment 4 of this 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 main 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 a floor response acceleration in a high-rise building. It is a block diagram which shows the elevator apparatus by Embodiment 6 of this invention. It is a graph which shows the estimation method of the floor response acceleration by the building shake estimation apparatus of FIG. It is a block diagram which shows the main part of the elevator apparatus of FIG. It is a block diagram which shows the elevator apparatus by Embodiment 7 of this invention. It is a block diagram which shows the main part of the elevator apparatus of FIG. It is a block diagram which shows the elevator apparatus by Embodiment 8 of this invention. It is a block diagram which shows the main part of the elevator apparatus of FIG. It is a block diagram which shows the elevator apparatus by Embodiment 9 of this invention. It is a graph which shows an example of the relationship between the response acceleration of a car with respect to an earthquake, and the position of a car. It is a graph which shows an example of the relationship between the response acceleration of the balance weight to an earthquake, and the position of the balance weight. FIG. 21 is a graph in which FIG. 21 and FIG. 22 are superimposed. It is a graph which shows the magnification calculated based on FIG. It is a graph which shows the relationship between the response acceleration of a car and a balance weight with respect to various input seismic waves, and the position of a car and a balance weight. It is a block diagram which shows the main part of the elevator apparatus of FIG. It is explanatory drawing explaining the determination operation of the determination part of FIG. 26. It is a flowchart which shows the operation of the control device of FIG. FIG. 21 is a graph in which the response acceleration of a balanced weight obtained by reversing the response acceleration of the car in FIG. 21 is superimposed on the response acceleration of the car. It is a graph which shows the magnification calculated based on FIG. It is a graph which shows the magnification obtained by linear approximation of 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 over 60 m. It is a graph which approximates the response acceleration of FIG. 32 with a straight line. It is a flowchart which shows the other determination operation of the determination part of FIG. It is a graph which shows the magnification used in the determination operation of FIG. 35.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a block diagram showing an elevator device according to the first embodiment of the present invention. In the figure, the building 1 is provided with a hoistway 2 and a machine room 3. The machine room 3 is provided in the upper part of the hoistway 2.

A basket 4 and a counterweight 5 are provided in the hoistway 2. Further, a pair of car guide rails 6 and a pair of balanced weight guide rails 7 are installed in the hoistway 2. The car 4 moves up and down in the hoistway 2 along the pair of car guide rails 6. The balance weight 5 moves up and down in the hoistway 2 along the pair of balance weight guide rails 7.

A hoisting machine 8 is installed in the machine room 3. 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 deflecting wheel 10. The deflecting wheels 10 are spaced apart from the drive sheave 9.

A suspension body 11 is wound around the drive sheave 9 and the deflecting 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 body 11 on one side of the drive sheave 9. The balance weight 5 is suspended by a suspension body 11 on the other side of the drive sheave 9. The car 4 and the balance weight 5 move up and down in the hoistway 2 by rotating the drive sheave 9.

A control device 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 equipment installed in the basket 4, the balance weight 5, and the machine room 3 is an elevator equipment. Each of these elevator devices generates device response acceleration when an earthquake occurs.

The car 4 is provided with a car sensor 13. The balance weight 5 is provided with a balance weight sensor 14. A machine room sensor 15 is provided on the floor of the machine room 3. Accelerometers are used as the car sensor 13, the balance weight sensor 14, and the machine room sensor 15, respectively.

The car sensor 13 generates a signal corresponding to the device response acceleration generated in the car 4 when an earthquake occurs. When an earthquake occurs, the balanced weight sensor 14 generates a signal corresponding to the device response acceleration generated in the balanced weight 5. The monitored devices of the first embodiment are a basket 4 and a balance weight 5.

The machine room sensor 15 generates a signal corresponding 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 device of FIG. The control device 12 has 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 as functional blocks. The operation control unit 16 controls the operation of the car 4.

The acceleration detection unit 17 detects the equipment response acceleration generated in the car 4 based on the signal from the car sensor 13 when an earthquake occurs. Further, the acceleration detection unit 17 detects the device response acceleration generated in the balance weight 5 based on the signal from the balance weight sensor 14 when an earthquake occurs. Further, the acceleration detection unit 17 detects the response acceleration generated in the machine room 3 based on the signal from the machine room sensor 15 when an earthquake occurs.

The determination unit 18 performs automatic diagnosis operation and control operation based on the equipment response acceleration generated in the car 4, the equipment response acceleration generated in the balance weight 5, and the response acceleration generated in the machine room 3 when an earthquake occurs. Judge whether or not.

The control device 12 is set with a plurality of threshold values that serve as determination criteria for the determination unit 18. The threshold value includes three threshold values related to automatic diagnostic operation and three threshold values related to control operation. The three threshold values for the automatic diagnosis operation include the threshold value of the car 4, the threshold value of the balance weight 5, and the threshold value of the machine room 3. The three threshold values for the control operation include the threshold value of the car 4, the threshold value of the balance weight 5, and the threshold value of the machine room 3.

The determination unit 18 can perform automatic diagnostic operation when the device response acceleration of the car 4, the device response acceleration of the balance weight 5, and the response acceleration of the machine room 3 are all equal to or less than the corresponding automatic diagnostic operation threshold. Is determined to be. Further, the determination unit 18 determines that when any one or more of the device response acceleration of the car 4, the device response acceleration of the balance weight 5, and the response acceleration of the machine room 3 is higher than the threshold value of the corresponding automatic diagnosis operation. , Judges that automatic diagnostic operation is not possible.

The determination unit 18 can perform control operation when all of the device response acceleration of the car 4, the device response acceleration of the balance weight 5, and the response acceleration of the machine room 3 are equal to or less than the corresponding control operation threshold value. Is determined. Further, when any one or more of the device response acceleration of the car 4, the device response acceleration of the balance weight 5, and the response acceleration of the machine room 3 is higher than the threshold value of the corresponding control operation, the determination unit 18 determines. Judge that control operation is not possible.

The control operation control unit 19 executes the control operation when the determination unit 18 determines that the control operation is possible when an earthquake occurs. The control operation is an operation in which the car 4 is safely stopped on the nearest floor and the door is opened in the event of an earthquake.

After the earthquake occurs, the diagnostic operation control unit 20 performs the automatic diagnostic operation when the determination unit 18 determines that the automatic diagnostic operation is possible. The automatic diagnostic operation is an operation that automatically diagnoses whether or not the normal operation of the elevator can be resumed after an earthquake. Automatic diagnostic operation and control operation are earthquake response operations.

When it is determined that the automatic diagnostic operation is not possible, the control device 12 leaves the elevator device in operation suspension.

FIG. 3 is a block diagram showing an example of the configuration of the control device 12 of FIG. The control device 12 has a communication device 101, a processor 102, and a memory 103. The function of the control device 12 is realized by the computer shown in FIG. The memory 103 stores a program that executes the function of the control device 12 and a plurality of threshold values that serve as determination criteria in the determination unit 18. The processor 102 executes 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 the seismic intensity equal to or higher than the set seismic intensity is detected, the control device 12 starts the operation shown in FIG. When the operation of FIG. 4 is started, the control device 12 first detects the device response acceleration of the monitored device in step S1.

Subsequently, the control device 12 determines in step S2 whether or not the control operation is possible.

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

When 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 in step S6 whether or not the earthquake continues. That is, the control device 12 determines whether or not the shaking of the earthquake is continuing based on the signal from the seismic detector or the like provided inside or outside the building 1, and waits until the shaking stops.

When the shaking of the earthquake subsides, the control device 12 determines in step S7 whether or not the automatic diagnostic operation is possible.

When 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.

When it is determined in step S7 that the automatic diagnosis operation is possible, the control device 12 executes the automatic diagnosis operation in step S8 and ends the process. The description of the operation after the automatic diagnosis operation is performed will be omitted.

In such an elevator device, the control device 12 determines whether or not automatic diagnostic operation and control operation are possible based on the device response acceleration generated in the monitored device. Therefore, it is possible to more accurately determine the state of the elevator equipment at the time of an earthquake and select a more efficient operation method at the time of an earthquake.

Further, the control device 12 detects the corresponding device response acceleration based on the signals from the car sensor 13 and the balance weight sensor 14. Therefore, more accurate device response acceleration can be detected.

Further, the control device 12 detects the response acceleration generated in the machine room 3 based on the signal from the machine room sensor 15. Therefore, the device response acceleration generated in the hoisting machine 8, the control device 12, and the like can be estimated more accurately.

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

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

Embodiment 2.
Next, FIG. 5 is a block diagram showing an elevator device according to the second embodiment of the present invention. The control device 12 of the second embodiment estimates the device response acceleration generated in the monitored device at the time of an earthquake based on the building shaking information which is the information about the shaking of the building 1 and the position information of the monitored device.

Further, in the second embodiment, the seismic detector 21 is installed on each floor of the building 1. An accelerometer is used as each seismic detector 21. Further, the seismic detector 21 is installed on all floors within the range in which the car 4 moves up and down, including the floor where the car 4 does not stop. The control device 12 uses the signal from each seismic detector 21 as building shaking information.

The monitored device of the second embodiment includes a basket 4 and a balance weight 5. The basket 4 and the balance weight 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. Further, the control device 12 uses the position information of the balanced weight 5 in order to estimate the device response acceleration of the balanced weight 5.

FIG. 6 is a block diagram showing a main part of the elevator device of FIG. The control device 12 has 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 as functional blocks. That is, the control device 12 of the second embodiment has an acceleration estimation unit 22 instead of the acceleration detection unit 17 of the first embodiment.

The acceleration estimation unit 22 is a device generated in the cage 4 and the equilibrium weight 5 based on the signal from each seismic detector 21, the position information of the cage 4, and the position information of the equilibrium weight 5 when an earthquake occurs. Estimate the response acceleration.

The position information of the car 4 can be received from the operation control unit 16. Further, the position information of the balance weight 5 can be calculated from the position of the car 4.

The acceleration estimation unit 22 estimates the equipment response acceleration generated in the car 4 based on the signal from the seismic detector 21 on the floor where the car 4 is located when the earthquake occurs. Further, the acceleration estimation unit 22 estimates the device response acceleration generated in the balance weight 5 based on the signal from the seismic detector 21 on the floor where the balance weight 5 is located when the earthquake occurs.

The determination unit 18 determines whether or not the control operation and the automatic diagnosis operation are possible by using the estimated value of the device response acceleration instead of the detected value of the device response acceleration of the first embodiment. 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 in the first embodiment.

In such an elevator device, even if the sensor is not directly mounted on the car 4 and the balance weight 5, the state of the elevator device at the time of an earthquake is more accurate by using the building shaking information and the position information of the monitored device. Can be determined. This makes it possible to select a more efficient driving method when an earthquake occurs.

Further, since the control device 12 uses the signal from each seismic detector 21 as the building shaking information, the shaking of the building 1 can be detected more accurately.

Further, since the control device 12 uses the position information of the car 4 and the balanced weight 5 in order to estimate the device response acceleration, the device response acceleration of the car 4 and the balanced weight 5 can be estimated more accurately. ..

Embodiment 3.
Next, FIG. 7 is a block diagram showing a main part of the elevator device according to the third embodiment of the present invention. The control device 12 of the third embodiment has 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 as functional blocks. 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 device to be monitored. In addition, the equipment response magnification is also shown in, for example, the document "Explanation of the Building Standards Law and the Elevator Technical Standards Related to the Law, 2016 Edition".

Further, the control device 12 uses the value of the device response magnification in order to estimate the device response acceleration of the device to be monitored.

Here, the shaking of the monitored equipment such as the basket 4 and the balance weight 5 due to the earthquake is actually different from the shaking of the building 1 due to the earthquake. Reasons for this include reduction of the sway of the car 4 by the car guide device (not shown), deformation of the car guide rail 6 that receives the sway of the car 4, deformation of the balance weight guide rail 7 that receives the sway of the balance weight 5, and the like. Will be.

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

When the monitored device is the car 4, the control device 12 determines the signal from the seismic detector 21 on the floor closest to the position of the car 4 and the 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.

Further, when the monitored device is the balanced weight 5, the control device 12 estimates the device response acceleration of the balanced weight 5 in the same manner as the car 4.

Further, when the monitored device is an elevator device fixed to the building 1, the control device 12 includes a signal from the seismic detector 21 on the floor closest to the position of the monitored device and the device of the monitored device. The device response acceleration is estimated based on the response magnification. Other configurations and operations are the same as those in the second embodiment.

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

The acceleration estimation unit 22 may obtain the equipment response acceleration of all floors from the signals from the seismic detectors 21 of all floors and the equipment response magnifications of all floors and send them to the determination unit 18. In this case, the determination unit 18 may select the device response acceleration corresponding to the position of the monitored device and compare it with the corresponding threshold value.

Embodiment 4.
Next, FIG. 8 is a block diagram showing a main part of the elevator device according to the fourth embodiment of the present invention. The control device 12 of the fourth embodiment has 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 as functional blocks. ing. The device vibration model storage unit 24 stores the vibration model for each monitored device in the memory 103.

Further, the control device 12 estimates the device response acceleration by using the vibration model of the device to be monitored by inputting the building shaking information.

Further, when the monitored device is the car 4, the control device 12 uses the vibration model of the car 4 as an input from the signal from the seismic detector 21 on the floor closest to the position of the car 4, and the device of the car 4 is used. Estimate the response acceleration.

Further, when the monitored device is the balanced weight 5, the control device 12 estimates the device response acceleration of the balanced weight 5 in the same manner as the car 4.

Further, when the monitored device is an elevator device fixed to the building 1, the control device 12 inputs a signal from the seismic detector 21 on the floor closest to the position of the monitored device to be monitored. Estimate the device response acceleration using the device vibration model. Other configurations and operations are the same as those in the second embodiment.

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

In the second to fourth embodiments, the signals from the seismic detectors 21 on all floors are input to the acceleration estimation unit 22. However, the acceleration estimation unit 22 may selectively acquire only the signal from the seismic detector 21 on the required floor after acquiring the position of the car 4 and the position of the balance weight 5. As a result, the amount of information handled by the control device 12 can be reduced.

Embodiment 5.
Next, FIG. 9 is a block diagram showing an elevator device according to the fifth embodiment of the present invention. In the fifth embodiment, the seismic detector 21 is installed on some floors of the building 1 instead of all the floors. Based on the signal from the seismic detector 21, the control device 12 obtains the floor response acceleration, which is the response acceleration to the earthquake on the floor where the seismic detector 21 is installed. Further, the control device 12 uses the floor response acceleration as building shake information.

When the monitored device is located on the floor where the seismic detector 21 is installed, the control device 12 detects the acceleration detected by the corresponding seismic detector 21 as the floor response acceleration.

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

Further, the building 1 is divided into a plurality of zones in the vertical direction, here, zones 1 to 3. Each zone 1 to 3 includes one floor on which the seismic detector 21 is installed.

FIG. 10 is a block diagram showing a main part of the elevator device of FIG. 9, and is the same as that of FIG. 6 except for the number of seismic detectors 21. The control device 12 uses the signal from the seismic detector 21 as building shaking information.

However, as shown in FIG. 11, the acceleration estimation unit 22 of the fifth embodiment assumes that the same building shaking occurs in each of the zones 1 to 3. As a result, the acceleration estimation unit 22 estimates the floor response acceleration of the floor on which the seismic detector 21 is not installed. Other configurations and operations are the same as those in the second embodiment.

In such an elevator device, even if the earthquake detector 21 is installed only on a part of the floor, the elevator device at the time of an earthquake uses the signal from the earthquake detector 21 and the position information of the monitored device. The state of can be determined more accurately. This makes it possible to select a more efficient driving method when an earthquake occurs.

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

In a high-rise building of 60 m or more, the response of the building to an earthquake, that is, the floor response acceleration is calculated in advance when designing the building. FIG. 12 is a graph showing an example of the relationship between the floor response acceleration and the number of floors in a high-rise building. In FIG. 12, the quadrangle indicates the installation location of the seismic detector 21.

Based on the calculation results as shown in FIG. 12, it is preferable to install the seismic detector 21 on the floor having the largest floor response acceleration in each zone. This makes it possible to more reliably detect the maximum shaking that occurs in the building 1 and the elevator equipment.

Further, in FIG. 9, the seismic detector 21 is installed on the lowest floor of each of the zones 1 to 3. However, the floor on which the seismic detector 21 is installed in each of the zones 1 to 3 is not limited to the lowest floor.

Further, in FIG. 9, one seismic detector 21 is installed in each of the zones 1 to 3. However, in order to improve the detection accuracy, two or more seismic detectors 21 may be installed in each of the zones 1 to 3.

Further, the number of zones may be two or four or more.

Further, in FIG. 10, the output of the seismic detector 21 is directly input to the acceleration estimation unit 22. However, the acceleration estimation unit 22 may estimate the device response acceleration by using the value of the device response magnification as in the third embodiment. Further, the acceleration estimation unit 22 may estimate the device response acceleration by using the vibration model of the device to be monitored, as in the fourth embodiment.

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

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

The control device 12 of the sixth embodiment has a control device main body 12A and a building shake estimation unit 25.

Further, when an earthquake occurs, the building shaking estimation unit 25 obtains the floor response acceleration of the floor on which the monitored device is installed, based on the signal from the earthquake detector 21.

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

FIG. 14 is a graph showing a method of estimating the floor response acceleration by the building shaking estimation unit 25 of FIG. In FIG. 14, the quadrangle indicates the installation location of the seismic detector 21. In the sixth embodiment, the building shaking estimation unit 25 interpolates linearly between the values of the floor response acceleration detected by the seismic detector 21.

FIG. 15 is a block diagram showing a main part of the elevator device of FIG. The signal from each seismic detector 21 is input to the building shaking estimation unit 25. The building shake estimation unit 25 obtains the floor response acceleration of all the floors of the building 1 by using the estimation method as shown in FIG.

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

In such an elevator device, the floor response acceleration of all floors is estimated by the building shaking estimation unit 25 based on the signals from two or more seismic detectors 21 set in the building 1.

Therefore, even if the seismic detector 21 is installed only on some floors, the signal from the seismic detector 21 and the position information of the monitored device can be used to determine the state of the elevator device at the time of the earthquake. It can be determined accurately. This makes it possible to select a more efficient driving method when an earthquake occurs.

In the sixth embodiment, the floor response accelerations of all floors are input from the building shaking estimation unit 25 to the acceleration estimation unit 22. However, when the monitored devices are the car 4 and the balanced weight 5, the position information of the car 4 and the balanced weight 5 is input to the building shaking estimation unit 25, and only the floor response acceleration of the floor corresponding to the position information is input. It may be input to the acceleration estimation unit 22.

In this case, the position information of the car 4 may be acquired from the control device 12 or from another position sensor. Further, the position information of the balance weight 5 may be calculated by the building shake estimation unit 25 from the position information of the car 4, or may be acquired from another position sensor.

Further, when the monitored device is not an elevating body, the position information of the monitored device may be set in advance in the building shake estimation unit 25, and only the necessary floor response acceleration may be input to the acceleration estimation unit 22.

Further, the acceleration estimation unit 22 may obtain the equipment response acceleration of all floors from the floor response acceleration of all floors and the equipment response magnification of all floors and send it to the determination unit 18. In this case, the determination unit 18 may select the device response acceleration corresponding to the position of the monitored device and compare it with the corresponding threshold value.

Further, in the sixth embodiment, the acceleration estimation unit 22 estimates the device response acceleration by using the device response magnification. However, the acceleration estimation unit 22 may estimate the device response acceleration by using the vibration model of the device to be monitored, as in the fourth embodiment.

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

The building vibration 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 vibration estimation unit 25.

Further, the building shaking estimation unit 25 obtains the floor response acceleration of all floors based on the signal from the seismic detector 21. At this time, the seismic detector 21 is installed on only one floor, but the building shaking estimation unit 25 uses the vibration model of the building 1 as an input from the signal from the seismic detector 21 and uses the vibration model of the building 1 on all floors. Find the floor response acceleration of. Then, the information of 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 those in the sixth embodiment.

In such an elevator device, 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 seismic detector 21.

The building shaking estimation unit 25 of the seventh embodiment may use signals from two or more seismic detectors 21.

Further, in the seventh embodiment, the floor response accelerations of all the floors are input from the building shaking estimation unit 25 to the acceleration estimation unit 22. However, when the monitored devices are the car 4 and the balanced weight 5, the position information of the car 4 and the balanced weight 5 is input to the building shaking estimation unit 25, and only the floor response acceleration of the floor corresponding to the position information is input. It may be input to the acceleration estimation unit 22.

In this case, the position information of the car 4 may be acquired from the control device 12 or from another position sensor. Further, the position information of the balance weight 5 may be calculated by the building shake estimation unit 25 from the position information of the car 4, or may be acquired from another position sensor.

Further, when the monitored device is not an elevating body, the position information of the monitored device may be set in advance in the building shake estimation unit 25, and only the necessary floor response acceleration may be input to the acceleration estimation unit 22.

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

Similar to the seventh embodiment, the building shaking estimation unit 25 uses the vibration model of the building 1 as an input from the signal from the seismic detector 21 to obtain the floor response acceleration of all floors. The 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, which is the monitored device, based on the signal from the car sensor 13. Further, the acceleration estimation unit 22 estimates the device response acceleration of the monitored device installed in the machine room 3 based on the signal from the machine room sensor 15.

Further, the acceleration estimation unit 22 estimates the device response acceleration of the balance weight 5, which is the monitored device, based on the building shake information from the building shake estimation unit 25 and the position information of the balance weight 5. Other configurations and operations are the same as those in the first embodiment.

Even with such a configuration, it is possible to more accurately determine the state of the elevator equipment at the time of an earthquake and select a more efficient operation method at the time of an earthquake.

Normally, the balance weight 5 has no wiring, but the wiring is already installed in the car 4 and the machine room 3. Therefore, the car sensor 13 is provided in the car 4 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 monitored device installed in the machine room 3 is estimated more accurately.

On the other hand, the balance weight 5 estimates the device response acceleration by the same method as that of the seventh embodiment. As a result, it is not necessary to install new wiring on the balance weight 5, and it is possible to suppress an increase in cost.

In the eighth embodiment, the device response acceleration of the balance weight 5 is estimated by the same method as that of the seventh embodiment, but it may be estimated by the method of the second to sixth embodiments.

It is also possible to provide the balancing weight sensor 14 in the balancing weight 5 and not to provide the basket sensor 13 in the basket 4. That is, the balance weight 5 may be the first elevating body, and the cage 4 may be the second elevating body.

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

Further, the building shake estimation unit 25 of the sixth to eighth embodiments may be integrated with the control device 12. That is, the control device 12 may have the function of the building shake estimation unit 25.

Embodiment 9.
Next, FIG. 20 is a block diagram showing an elevator device according to the ninth embodiment of the present invention. When an earthquake occurs, the control device 31 of the ninth embodiment determines whether or not the control operation and the automatic diagnosis operation are possible based on the signal from the earthquake detector 21. Further, the control device 31 changes the criteria for determining whether or not the control operation and the automatic diagnosis operation are possible according to the position of the car 4 which is the elevating body and the position of the balance weight 5 which is the elevating body.

Further, the control device 31 changes the magnification to be multiplied by the value used for determining the propriety of the control operation and the automatic diagnosis operation according to the position of the car 4 and the position of the balance weight 5.

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

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

As described above, the response acceleration that the car 4 can tolerate is a constant value, whereas the actual shaking of the car 4 depends on the floor on which the car 4 is located. Therefore, 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 in terms of strength as compared with the case where the car 4 is located on the lowest floor. Can be done.

This also applies to the balance weight 5. Therefore, when the response acceleration of the car 4 shown in FIG. 21 and the response acceleration of the balance weight 5 shown in FIG. 22 are superposed, FIG. 23 is obtained. 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 balanced weight 5 are small, so that the car 4 and the balanced weight 5 can be subjected to a larger earthquake. Can withstand.

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

However, the shaking of the building 1 at the time of an earthquake actually differs depending on the type and magnitude of the input seismic wave. Therefore, the shaking of the basket 4 and the balancing weight 5 actually differs depending on the seismic wave, and does not always become the shaking shown in FIGS. 21 and 22.

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

The magnification shall be calculated in advance according to 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 device of FIG. The control device 31 has an operation control unit 16, a magnification storage unit 32, a determination unit 33, a control operation control unit 19, and a diagnostic operation control unit 20 as functional blocks. 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 determination unit 33 determines whether or not the control operation and the automatic diagnosis operation are possible based on the signal from the earthquake detector 21, the position of the car 4, and the magnification.

27 is an explanatory diagram illustrating a determination operation of the determination unit 33 of FIG. 26. A permissible value for control operation and a permissible value for 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.

Further, when an earthquake occurs, the determination unit 33 multiplies the allowable value for control operation by the selected magnification to obtain a first threshold value for whether or not control operation is possible. Further, 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 for 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 and the threshold value when the car 4 is located on the middle floor are different. 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.

Further, the determination unit 33 compares the output value from the earthquake detector 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. Further, the determination unit 33 determines that the control operation is impossible when the output value exceeds the first threshold value.

Further, the determination unit 33 compares the output value from the earthquake detector 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. Further, the determination unit 33 determines that the automatic diagnosis operation is impossible when the output value exceeds the second threshold value.

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

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

If it is determined in step S2 that the control operation is not possible, the control device 31 suddenly stops the car 4 in step S3. After that, the control device 31 notifies the management room that the control operation was not performed in step S4.

When 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, the control device 31 determines in step S6 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 seismic detector 21, and waits until the shaking subsides.

When the shaking of the earthquake subsides, the control device 31 determines in step S7 whether or not the automatic diagnostic operation is possible.

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

When it is determined in step S7 that the automatic diagnosis operation is possible, the control device 31 executes the automatic diagnosis operation in step S8 and ends the process. The description of the operation after the automatic diagnosis operation is performed will be omitted. Further, other configurations and operations are the same as those in the first embodiment.

In such an elevator device, the control device 31 changes the first threshold value regarding the propriety of the control operation and the second threshold value regarding the propriety 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 method of operating the elevator device.

Further, 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 method of operating the elevator device.

Further, 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 balance weight 5 on each floor calculated for a plurality of different input seismic waves. Therefore, it is possible to select a more efficient method of operating the elevator device for any earthquake.

In the above example, the response acceleration of the car 4 and the response acceleration of the balance weight 5 were calculated separately. However, in a general elevator device, the cage 4 and the counterweight 5 have a positional relationship that is just reversed. Therefore, the response acceleration of the car 4 as shown in FIG. 21 is turned upside down and used as the response acceleration of the balance weight 5.

Then, as shown in FIG. 29, the response acceleration of the balance weight 5 is superimposed on the response acceleration of the cage 4, so that the response acceleration of the cage 4 and the balance weight 5 is accelerated. Based on this response acceleration, the magnification can be calculated as shown in FIG.

The magnification shown in FIG. 30 has a shape symmetrical in the height direction with the middle floor as the center.

Further, assuming that the shaking of the car 4 and the shaking of the counterweight weight 5 are substantially equal, the magnification is vertically symmetrical as shown in FIG. 30. Therefore, as shown in FIG. 31, the magnification can be obtained by linearly approximating the values of the three points. The three points are the magnification corresponding to the response acceleration of the car 4 on the lowest floor, the magnification corresponding to the response acceleration of the car 4 on the middle floor to be folded, and the magnification corresponding to the response acceleration of the car 4 on the top floor. Is.

Further, the shaking of the building 1 at the time of an 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. 32. 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 was calculated based on the detailed shaking of the building, but especially when the building 1 is 60 m or less, the data of the shaking of the building 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 shaking data shown in FIG. 32.

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

In this way, even if there is no detailed building shaking data, it is possible to obtain a general-purpose magnification by using general building shaking data.

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

Further, in FIG. 27, the permissible value is multiplied by the magnification, but as shown in FIG. 35, the same effect can be obtained by multiplying the signal from the seismic detector 21, that is, the sensor output by the magnification according to the position of the car 4. Is obtained. In this case, as shown in FIG. 36, the magnification is a shape in which the magnification shown in FIG. 27 is reversed left and right.

Further, 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 balance weight 5.

Further, in the above example, the value used for determining whether or not earthquake-responsive operation is possible is multiplied by a magnification, but the method of changing the criterion for determining whether or not earthquake-responsive operation is possible according to the position of the car 4 is a method of multiplying by a magnification. Not limited.

Further, in the first to ninth embodiments, it is determined whether or not the automatic diagnosis operation and the control operation are possible, but it may be determined whether or not only one of them is possible.

Further, the control device for determining the propriety of earthquake response operation may be separated from the device for controlling the normal operation of the elevator device.

The present invention can also be applied to the case where a plurality of elevator devices are installed in the same building. In this case, by determining whether or not the elevator device can be operated in response to an earthquake, it is possible to select a more efficient method of operating the elevator device for the entire building 1 when an earthquake occurs.

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

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

1 Building, 2 Hoistway, 4 Cars (monitoring equipment, 1st elevator), 5 Balanced weights (monitoring equipment, 2nd elevator), 12,31 Control device, 13 Car sensor, 14 Balance Weight sensor, 15 machine room sensor, 21 seismic detector.

Claims (14)

A control device for determining whether or not at least one of automatic diagnostic operation and control operation is possible based on the device response acceleration generated in the monitored device, which is at least one elevator device at the time of an earthquake, is provided . An elevator device that estimates the response acceleration of the equipment based on the building shaking information, which is information on the shaking of the building in which the monitored equipment is installed, and the position information of the monitored equipment . The elevator device according to claim 1 , wherein the control device uses a signal from an earthquake detector installed in the building as the building shaking information. Claim 1 or claim 2 uses the value of the device response magnification set according to the floor of the building and the natural frequency of the device to be monitored in order to estimate the device response acceleration. Elevator device described in. The elevator device according to claim 1 or 2 , wherein the control device uses the vibration model of the monitored device as an input to estimate the response acceleration of the device. Based on the signal from the seismic detector, the control device obtains the floor response acceleration, which is the response acceleration to the earthquake on the floor where the seismic detector is installed, and uses the floor response acceleration as the building shaking information. 2. The elevator device according to claim 2 . The elevator device according to claim 5 , wherein the control device uses a signal from the seismic detector as an input and uses a vibration model of the building to obtain the floor response acceleration. When an earthquake occurs, the monitored device is equipped with a control device that determines whether at least one of automatic diagnostic operation and control operation is possible based on the device response acceleration generated in the monitored device, which is at least one elevator device. The first elevating body includes a first elevating body and a second elevating body that move up and down the hoistway, and the first elevating body includes a sensor that generates a signal corresponding to the device response acceleration of the first elevating body. The control device is provided, and based on the signal from the sensor, detects the device response acceleration of the first elevating body, and is information on the shaking of the building in which the monitored device is installed. An elevator device that estimates the equipment response acceleration of the second elevating body based on the building shaking information and the position of the second elevating body. When an earthquake occurs, based on the signal from the seismic detector set in the building, it is determined whether or not the earthquake response operation, which is at least one of the automatic diagnostic operation and the control operation, is possible, and the elevating body that goes up and down the hoistway. A control device for changing the criterion for determining whether or not the earthquake-responsive operation is possible according to the position of Elevator device to change accordingly . The elevator device according to claim 8 , wherein the magnification when the elevating body is located at the same height as the ground surface and the magnification when the elevating body is located on the middle floor are different. The elevator according to claim 8 or 9 , wherein the magnification is set based on the maximum value of each floor among a plurality of response accelerations of the elevating body on each floor calculated for a plurality of different input seismic waves. Device. The elevator includes a car and a counterweight, and the magnification on each floor is set according to claim 8 using the maximum value of the response acceleration of the car and the response acceleration of the counterweight to an earthquake. The elevator device according to any one of up to 10 . The elevator device according to claim 11 , wherein a response acceleration of the balance weight obtained by reversing the response acceleration of the car in the height direction is used. The elevator device according to claim 8 , wherein the magnification is set by approximating the magnification when the elevating body is located on the lowest floor, the middle floor, and the top floor of the building with a straight line. The elevator device according to claim 8 , wherein the magnification is set based on the response acceleration of the building to an earthquake set according to the height of the building.

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