JPWO2020021630A1 - Health diagnostic device - Google Patents

Abstract

The soundness diagnostic apparatus has a gap estimation unit, a storage unit, and a diagnostic unit. The gap estimation unit estimates the gap dimension between the connecting member provided on the landing door and the vane mechanism provided on the car door from at least one of the rotational speed and torque of the door motor. The storage unit stores the gap reference value. By comparing the gap size after the occurrence of the earthquake with the gap reference value, the diagnostic unit diagnoses the soundness of the object to be diagnosed after the occurrence of the earthquake, which is at least one of the building and the elevator.

Description

The present invention relates to a soundness diagnostic apparatus for diagnosing the soundness of a diagnostic object, which is at least one of a building in which an elevator is provided and an elevator.

In the conventional elevator temporary restoration operation system, a distance sensor and a target are provided in the three-sided frame of the landing. The distance sensor is located above the one end in the width direction of the landing entrance. The target is located at the bottom of the other end in the width direction of the landing entrance. The evaluation unit obtains the inter-story displacement of the building before and after the earthquake from the deformation of the three-sided frame of the landing (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 9-120337

In the conventional elevator temporary restoration operation system as described above, it is necessary to install a distance sensor and a target on the three-sided frame of the landing on each floor, which complicates the configuration and increases the cost.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a soundness diagnostic apparatus capable of simplifying the configuration and reducing the cost.

The soundness diagnosis device according to the present invention is provided on a connecting member provided on the elevator landing door and a car door of the elevator, and a vane mechanism for interlocking the landing door with the car door by sandwiching the connecting member. The gap estimation unit that estimates the gap size between the elevator and the door motor of the elevator from at least one of the rotation speed and torque, the storage unit that stores the gap reference value, and the gap size after the earthquake occurs are compared with the gap reference value. By doing so, it is equipped with a diagnostic unit that diagnoses the soundness of the object to be diagnosed after an earthquake, which is at least one of the building where the elevator is installed and the elevator.
Further, the soundness diagnosis device according to the present invention compares the torque waveform of the door motor after the earthquake with the storage unit that stores the torque reference waveform corresponding to the torque waveform of the door motor of the elevator before the earthquake. As a result, it is equipped with a diagnostic unit that diagnoses the soundness of the object to be diagnosed after an earthquake, which is at least one of the building where the elevator is installed and the elevator.
Further, the soundness diagnosis device according to the present invention is provided in the elevator car, and has a gap detector that detects the gap size between the car sill and the landing sill, and a gap reference value for the gap size after an earthquake. By comparing with, the building provided with the elevator and the elevator are provided with a diagnostic device main body for diagnosing the soundness of the diagnosis target after an earthquake, which is at least one of them.
Further, the soundness diagnosis device according to the present invention is provided in the elevator car, and is a feature point detector that detects the position of a feature point that is a part of the landing door device, and the position of the feature point after an earthquake occurs. Is equipped with a diagnostic device main body that diagnoses the soundness of the object to be diagnosed after an earthquake, which is at least one of the building where the elevator is installed and the elevator by comparing with the reference position.
Further, the soundness diagnosis device according to the present invention is provided on the connecting member provided on the landing door of the elevator and the car door of the elevator, and the landing door is interlocked with the car door by sandwiching the connecting member. A gap estimation unit that estimates the gap dimension with the vane mechanism from at least one of the rotation speed and torque of the elevator door motor, a storage unit that stores the allowable angle of inclination of the elevator car, and a first car. Find the difference between the gap dimension when stopped at the position and the gap dimension when the car is stopped at the second position shifted vertically with respect to the first position, and based on the difference, the car Equipped with a diagnostic unit that diagnoses the soundness of the diagnostic object that is at least one of the building where the elevator is installed and the elevator by estimating the tilt angle of the elevator and comparing the estimated tilt angle with the permissible angle. ing.

According to the soundness diagnosis device of the present invention, the configuration can be simplified and the cost can be reduced.

It is a schematic block diagram which shows an example of the elevator to which the soundness diagnostic apparatus according to Embodiment 1 of this invention is applied. It is a block diagram which shows the state which the inter-story displacement by an earthquake occurs in the elevator of FIG. It is a front view which shows the car door device of the elevator of FIG. It is a front view which shows the landing door device of the elevator of FIG. It is a top view which shows the positional relationship between the vane mechanism of FIG. 3 and the connecting roller of FIG. 4 when all the doors are closed. It is a top view which shows the state which the landing door roller is sandwiched by the vane mechanism of FIG. 6 is a plan view showing a state in which the vane mechanism and the landing door roller of FIG. 6 are being opened. FIG. 5 is a plan view showing a state in which a misalignment occurs due to an earthquake between the first car door and the second landing door of FIG. It is a top view which shows the state which the landing door roller is sandwiched by the vane mechanism of FIG. 9 is a plan view showing a state in which the vane mechanism and the landing door roller of FIG. 9 are being opened. It is a graph which shows an example of the rotation speed waveform and torque waveform at the time of door opening operation of the door motor of FIG. It is a block diagram which shows the door control device of FIG. 3 and the soundness diagnosis device of Embodiment 1. FIG. It is a flowchart which shows the judgment standard update operation by the diagnostic apparatus main body of FIG. It is a flowchart which shows the soundness diagnosis operation by the diagnostic apparatus main body of FIG. It is a block diagram which shows the soundness diagnosis apparatus by Embodiment 2 of this invention. It is a block diagram which shows the soundness diagnosis apparatus by Embodiment 3 of this invention. It is a block diagram which shows an example of the feature point which is the detection target of the feature point detector of FIG. It is a block diagram which shows the soundness diagnosis apparatus by Embodiment 4 of this invention. FIG. 3 is a front view showing a state in which the car door device of FIG. 3 is tilted due to the tilt of the car. It is a front view which shows the relationship between the vane mechanism of FIG. 19 and a landing door roller when a car is in a 1st position. It is a front view which shows the relationship between the vane mechanism of FIG. 19 and a landing door roller when a car is in a 2nd position. It is a block diagram which shows 1st example of the processing circuit which realizes each function of the diagnostic apparatus main body of Embodiments 1-4. It is a block diagram which shows the 2nd example of the processing circuit which realizes each function of the diagnostic apparatus main body of Embodiments 1-4.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a schematic configuration diagram showing an example of an elevator to which the soundness diagnostic apparatus according to the first embodiment of the present invention is applied. Further, FIG. 2 is a configuration diagram showing a state in which the elevator of FIG. 1 is displaced between layers due to an earthquake.

In the figure, the building 50 is provided with a hoistway 51 and a machine room 52. The machine room 52 is arranged directly above the hoistway 51. A hoisting machine 53 and an elevator control device 54 are installed in the machine room 52.

The hoisting machine 53 includes a drive sheave 55, a hoisting machine motor (not shown), and a hoisting machine brake (not shown). The hoisting machine motor rotates the drive sheave 55. The hoist brake keeps the drive sheave 55 stationary or brakes the rotation of the drive sheave 55.

A suspension body 56 is wound around the drive sheave 55. As the suspension body 56, a plurality of ropes or a plurality of belts are used.

A car 57 is connected to the first end of the suspension 56. A balance weight (not shown) is connected to the second end of the suspension body 56. The car 57 and the balance weight are suspended in the hoistway 51 by the suspension body 56. Further, the car 57 and the balance weight move up and down in the hoistway 51 by rotating the drive sheave 55.

The elevator control device 54 controls the operation of the car 57 by controlling the hoisting machine 53.

A first car guide rail 58a and a second car guide rail 58b are installed in the hoistway 51. The first and second car guide rails 58a and 58b guide the car 57 up and down.

FIG. 3 is a front view showing the car door device of the elevator of FIG. 1, and is a view of the car door device as viewed from the landing side.

The car doorway 1 is opened and closed by the first car door 2 and the second car door 3. The first car door 2 has a first car door panel 4 and a first car door hanger 5. The first car door hanger 5 is fixed to the upper part of the first car door panel 4.

The first car door hanger 5 is provided with a pair of first car door rollers 6 and a pair of first car door up thrust rollers 7. The pair of first car door up thrust rollers 7 are arranged below the pair of first car door rollers 6.

The second car door 3 has a second car door panel 8 and a second car door hanger 9. The second car door hanger 9 is fixed to the upper part of the second car door panel 8.

The second car door hanger 9 is provided with a pair of second car door rollers 10 and a pair of second car door up thrust rollers 11. The pair of second car door up thrust rollers 11 are arranged below the pair of second car door rollers 10.

The car door girder 13 is fixed to the car above the car doorway 1. The car door girder 13 is provided with a car door rail 14. The first and second car doors 2 and 3 are suspended from the car door rail 14.

During the opening and closing operations of the first and second car doors 2 and 3, the first and second car door rollers 6 and 10 move while rolling on the car door rail 14. The first and second car door up thrust rollers 7 and 11 prevent the first and second car door rollers 6 and 10 from falling off from the car door rail 14.

A door motor 15 is fixed to the car door girder 13. The door motor 15 generates a driving force for opening and closing the first and second car doors 2 and 3. Further, the door motor 15 is arranged at one end of the car door girder 13 in the width direction of the car entrance / exit 1. Further, the door motor 15 is arranged above the car door rail 14. The rotation axis of the door motor 15 is parallel and horizontal in the depth direction of the car.

A motor pulley 16 is fixed to the rotating shaft of the door motor 15. An interlocking pulley 17 is provided at the other end of the car door girder 13 in the width direction of the car entrance / exit 1. The interlocking pulley 17 is arranged above the car door rail 14. The rotation axis of the interlocking pulley 17 is parallel to the rotation axis of the door motor 15.

An annular transmitter 18 is wound between the motor pulley 16 and the interlocking pulley 17. As the transmitter 18, for example, a transmission belt is used. The upper portion and the lower portion of the transmitter 18 are stretched parallel to the width direction of the car entrance / exit 1.

A vane mechanism 19 is provided on the first car door 2. The transmission body 18 is provided with a gripping member 20. The gripping member 20 grips the lower portion of the transmitter 18. The movement of the transmitter 18 is transmitted to the first car door 2 via the gripping member 20. The transmitter 18 circulates by the door motor 15 and transmits the driving force of the door motor 15 to the first car door 2.

The opening / closing operation of the first car door 2 is transmitted to the second car door 3 via the car door interlocking mechanism 21. The door motor 15 is controlled by the door control device 22.

The car door device of the first embodiment is a single door type. That is, the first and second car doors 2 and 3 move in the same direction during the opening / closing operation.

The first car door 2, which is a high-speed door, is arranged on the side far from the door pocket when the car doorway 1 is fully closed. The second car door 3, which is a low-speed door, is arranged on the side close to the door pocket when the car doorway 1 is fully closed. The door pocket is on the left side of the second car door 3 in FIG. The first car door 2 moves at a higher speed than the second car door 3 during the opening / closing operation.

FIG. 4 is a front view showing the landing door device of the elevator of FIG. 1, and is a view of the landing door device as viewed from the hoistway side.

The landing entrance / exit 31 is opened and closed by the first landing door 32 and the second landing door 33. The first landing door 32 has a first landing door panel 34 and a first landing door hanger 35. The first landing door hanger 35 is fixed to the upper part of the first landing door panel 34.

The first landing door hanger 35 is provided with a pair of first landing door rollers 36 and a pair of first landing door up thrust rollers 37. The pair of first landing door up thrust rollers 37 are arranged below the pair of first landing door rollers 36.

The second landing door 33 has a second landing door panel 38 and a second landing door hanger 39. The second landing door hanger 39 is fixed to the upper part of the second landing door panel 38.

The second landing door hanger 39 is provided with a pair of second landing door rollers 40 and a pair of second landing door up thrust rollers 41. The pair of second landing door up thrust rollers 41 are arranged below the pair of second landing door rollers 40.

The landing door girder 43 is arranged above the landing entrance / exit 31. The landing door girder 43 is provided with a landing door rail 44. The first and second landing doors 32 and 33 are suspended from the landing door rails 44.

During the opening and closing operations of the first and second landing doors 32 and 33, the first and second landing door rollers 36 and 40 move while rolling on the landing door rail 44. The first and second landing door up thrust rollers 37 and 41 prevent the first and second landing door rollers 36 and 40 from falling off from the landing door rail 44.

The second landing door 33 is provided with a pair of connecting rollers 45 as connecting members. The connecting roller 45 includes a fixed side interlock roller and a movable side interlock roller.

The connecting roller 45 is sandwiched by the vane mechanism 19 when the car has landed and the first car door 2 is opened. As a result, the movable interlock roller rotates, and the locking device (not shown) is unlocked. Further, the vane mechanism 19 interlocks the second landing door 33 with the opening / closing operation of the first car door 2 by sandwiching the connecting roller 45.

The landing door girder 43 is provided with a landing door interlocking mechanism 46. The opening / closing operation of the second landing door 33 is transmitted to the first landing door 32 via the landing door interlocking mechanism 46.

FIG. 5 is a plan view showing the positional relationship between the vane mechanism 19 of FIG. 3 and the connecting roller 45 of FIG. 4 when all the doors are closed. The vane mechanism 19 has a first vane 19a and a second vane 19b. The first vane 19a and the second vane 19b are arranged parallel to each other and parallel to each other in the vertical direction. Further, the distance between the first vane 19a and the second vane 19b is variable.

When all the doors are closed, the first vane 19a and the second vane 19b are separated from the connecting roller 45, respectively. The gap dimension between the first vane 19a and the connecting roller 45 when all the doors are closed is X.

FIG. 6 is a plan view showing a state in which the connecting roller 45 is sandwiched by the vane mechanism 19 of FIG. Further, FIG. 7 is a plan view showing a state in which the vane mechanism 19 and the connecting roller 45 of FIG. 6 are in the door opening operation.

When the door motor 15 starts the door opening operation, the distance between the first vane 19a and the second vane 19b is first narrowed, and the connecting roller 45 is sandwiched between the first vane 19a and the second vane 19b. ..

After that, when the first car door 2 starts moving to the door pocket side, the second landing door 33 moves to the door pocket side integrally with the first car door 2.

FIG. 8 is a plan view showing a state in which the position of the first car door 2 and the second landing door 33 of FIG. 5 is displaced due to an earthquake. In the example of FIG. 8, the building 50 is displaced between layers due to the earthquake. As a result, the gap size is changed to X + ΔX. Further, an angle deviation of an angle deviation amount Δθ with respect to the first car door 2 is generated in the second landing door 33.

FIG. 9 is a plan view showing a state in which the connecting roller 45 is sandwiched by the vane mechanism 19 of FIG. Further, FIG. 10 is a plan view showing a state in which the vane mechanism 19 and the connecting roller 45 of FIG. 9 are in the door opening operation.

In the state of FIG. 10, the second landing door 33 is open while being inclined with respect to the first car door 2.

FIG. 11 is a graph showing an example of a rotational speed waveform and a torque waveform when the door motor 15 of FIG. 3 is opened. As shown in FIG. 11, the gap size can be estimated from at least one of the rotational speed and the torque of the door motor 15.

Further, as shown in FIGS. 8 to 10, when the angle of the second landing door 33 deviates from the first car door 2 due to the earthquake, a running loss occurs in the second landing door 33. Therefore, the amount of angular deviation can be estimated from the increase in the torque waveform as shown in FIG. Further, the deformation of the landing door rail 44 due to the earthquake can be estimated from the torque fluctuation.

FIG. 12 is a block diagram showing the door control device 22 of FIG. 3 and the soundness diagnosis device of the first embodiment. The door motor 15 is provided with a rotation detector 23 that generates a signal according to the rotation speed of the door motor 15. As the rotation detector 23, for example, a resolver or an encoder is used.

The door control device 22 has a speed command unit 22a, a speed control unit 22b, a current control unit 22c, a speed calculation unit 22d, and a filter processing unit 22e as functional blocks.

The speed command unit 22a generates a rotation speed command value of the door motor 15 for opening and closing the first and second car doors 2 and 3, and outputs the rotation speed command value to the speed control unit 22b.

The speed control unit 22b corrects an error between the actual rotation speed of the door motor 15 and the rotation speed command value. Further, the rotation speed command value, which is the output of the speed command unit 22a, and the actual rotation speed of the door motor 15 obtained from the speed calculation unit 22d and the filter processing unit 22e are input to the speed control unit 22b.

In FIG. 12, an error is obtained by inputting the rotation speed command value and the actual rotation speed of the door motor 15 into the first adder / subtractor 24. Then, the speed control unit 22b outputs the rotation speed command value corrected for the error to the current control unit 22c as the current command value.

The current control unit 22c controls the current supplied to the door motor 15 based on the current command value. The output of the current control unit 22c is input to the door motor 15 via a pulse width modulation inverter (not shown).

Further, the current control unit 22c corrects the current command value from the speed control unit 22b based on the current value detected by the current detector 25. In FIG. 12, an error is obtained by inputting the current command value from the speed control unit 22b and the current value detected by the current detector 25 into the second addition / subtractor 26.

In addition, instead of the rotation detector 23, the current value detected by the current detector 25 can be used to estimate the motor rotation position or rotation speed.

The speed calculation unit 22d calculates the rotation speed by sampling the input rotation position at regular time intervals, and outputs the rotation speed to the filter processing unit 22e.

The filter processing unit 22e performs low-pass filter processing on the input rotation speed. The low-pass filter process is a process of excluding the vibration component in the high frequency region and extracting the low frequency region required for speed control.

The door control device 22 has a computer. The function of the door control device 22 can be realized by arithmetic processing by a computer.

The soundness diagnostic device of the first embodiment has a diagnostic device main body 61. The diagnostic device main body 61 diagnoses the soundness of the diagnosis target after the occurrence of an earthquake. The diagnosis target is at least one of the building 50 and the elevator. Further, the diagnostic apparatus main body 61 determines whether or not there is an abnormality that hinders the restart of the automatic operation of the elevator as the soundness of the diagnosis target after the occurrence of the earthquake.

Further, the diagnostic device main body 61 has a speed detection unit 61a, a torque detection unit 61b, a gap estimation unit 61c, a storage unit 61d, a gap determination unit 61e as a diagnostic unit, a torque determination unit 61f as a diagnostic unit, and as functional blocks. It has a reporting unit of 61 g.

The speed detection unit 61a detects the rotation speed of the door motor 15 based on the output from the rotation detector 23. The torque detection unit 61b detects the torque of the door motor 15 based on the current command value which is the output of the speed control unit 22b.

The gap estimation unit 61c estimates the gap dimension between the first vane 19a and the connecting roller 45 when all the doors are closed, based on the rotation speed and torque of the door motor 15. When estimating the gap size, the diagnostic device main body 61 outputs an estimated operation command to the door control device 22.

Upon receiving the estimated operation command, the door control device 22 causes the first and second car doors 2 and 3 to open at a lower speed than usual with the car 57 landing on the landing floor. At this time, the gap estimation unit 61c estimates the gap size from the changes in the rotation speed and torque of the door motor 15.

The storage unit 61d stores the gap reference value corresponding to the gap size before the occurrence of the earthquake. The gap reference value is, for example, a value obtained by adding an allowable value to the gap size before the occurrence of an earthquake or the gap size before the occurrence of an earthquake.

Further, the storage unit 61d stores a torque reference waveform corresponding to the torque waveform before the occurrence of the earthquake. The torque reference waveform is, for example, a torque waveform when the door motor 15 is opened before an earthquake occurs.

The diagnostic device main body 61 periodically updates the gap reference value and the torque reference waveform. The renewal cycle is, for example, once a day, once a week, or once a month. Further, the update may be performed when the elevator is started. Further, the update may be performed when the update command is manually input.

The gap determination unit 61e determines whether or not there is an abnormality in the diagnosis target after the occurrence of the earthquake by comparing the estimated value after the earthquake, which is the estimated value of the gap dimension after the occurrence of the earthquake, with the gap reference value. As a result, the gap determination unit 61e diagnoses the soundness of the diagnosis target after the occurrence of the earthquake.

When the gap dimension before the occurrence of an earthquake is used as the gap reference value, the gap determination unit 61e determines that there is an abnormality when the difference between the estimated value after the earthquake and the gap reference value exceeds the permissible value. When the value obtained by adding the allowable value to the gap dimension before the occurrence of the earthquake is used as the gap reference value, the gap determination unit 61e determines that there is an abnormality when the estimated value after the earthquake exceeds the gap reference value.

The torque determination unit 61f determines whether or not there is an abnormality in the diagnosis target after the occurrence of the earthquake by comparing the post-earthquake waveform, which is the torque waveform after the occurrence of the earthquake, with the torque reference waveform. As a result, the torque determination unit 61f diagnoses the soundness of the diagnosis target after the occurrence of the earthquake.

The alarm unit 61g notifies the elevator control device 54 and the remote control room of the determination result by the gap determination unit 61e and the torque determination unit 61f.

FIG. 13 is a flowchart showing a determination standard updating operation by the diagnostic apparatus main body 61 of FIG. The diagnostic device main body 61 updates the gap reference value and the torque reference waveform at the above timing. When the determination standard update operation is started, the diagnostic device main body 61 outputs an estimated operation command to the door control device 22 in step S1.

Next, in step S2, the diagnostic apparatus main body 61 acquires information on the rotational speed and torque of the door motor 15. Then, the diagnostic apparatus main body 61 estimates the gap size based on the acquired information in step S3. After that, the diagnostic apparatus main body 61 updates the gap reference value and the torque reference waveform in step S4, and ends the process.

FIG. 14 is a flowchart showing a soundness diagnosis operation by the diagnostic apparatus main body 61 of FIG. The diagnostic device main body 61 periodically executes the process shown in FIG. 14 at a set cycle. First, in step S11, the diagnostic apparatus main body 61 confirms whether or not an earthquake having a seismic intensity equal to or higher than the set seismic intensity is detected.

If no earthquake is detected, the diagnostic device main body 61 ends the process of that time. When an earthquake is detected, the diagnostic device main body 61 confirms in step S12 whether or not the shaking of the earthquake has subsided. If the shaking has not subsided, the diagnostic device main body 61 ends the process of that time.

When the shaking has subsided, the diagnostic device main body 61 confirms in step S13 whether or not the set time has elapsed. If the set time has not elapsed, the diagnostic device main body 61 ends the process at that time.

When the set time has elapsed, the diagnostic device main body 61 outputs an estimated operation command to the door control device 22 in step S14. Subsequently, in step S15, the diagnostic apparatus main body 61 acquires information on the rotational speed and torque of the door motor 15. Then, the diagnostic device main body 61 estimates the gap size after the occurrence of the earthquake based on the acquired information in step S16.

After that, the diagnostic apparatus main body 61 determines in step S17 whether or not there is an abnormality to be diagnosed. Subsequently, in step S18, the diagnostic device main body 61 outputs the determination result to the elevator control device 54 and the remote control room, and ends the process.

As described above, in the soundness diagnosis device of the first embodiment, the diagnosis device main body 61 estimates the gap size from the rotation speed and torque of the door motor 15. Then, the diagnostic apparatus main body 61 diagnoses the soundness of the diagnosis target after the occurrence of the earthquake by comparing the gap dimension after the occurrence of the earthquake with the gap reference value. Therefore, the configuration can be simplified and the cost can be reduced.

Further, the diagnostic apparatus main body 61 diagnoses the soundness of the diagnosis target after the occurrence of an earthquake by comparing the torque waveform of the door motor 15 with the torque reference waveform. Therefore, the configuration can be simplified and the cost can be reduced.

In addition, the diagnostic device main body 61 can estimate the degree of interlayer displacement due to an earthquake from the gap size and torque fluctuation, and diagnose the soundness of the diagnosis target.

Further, the diagnostic apparatus main body 61 periodically updates the gap reference value and the torque reference waveform. Therefore, it is possible to eliminate changes over time and estimate the damage caused by the earthquake more accurately.

It is preferable to set the gap reference value and the torque reference waveform for each landing floor. Further, although it is preferable to execute the soundness diagnosis operation on all the landing floors, some landing floors may be selected and executed.

Further, the threshold value of the gap dimension may be manually set as the gap reference value. Similarly, the torque reference waveform may be set manually.

Further, the gap size may be estimated only from the rotation speed or torque of the door motor 15.

Further, in the first embodiment, the one-sided door device is shown, but the door device may be a center-opening type. Also, the number of doors is not limited to two.

Further, the connecting member is not limited to the connecting roller 45.

Embodiment 2.
Next, FIG. 15 is a configuration diagram showing a soundness diagnosis device according to the second embodiment of the present invention. The soundness diagnostic device of the second embodiment has a gap detector 71 and a diagnostic device main body 62. The gap detector 71 is provided in the car 57. Further, the gap detector 71 is installed on the ceiling of the car room.

Further, the gap detector 71 detects the gap dimension between the car sill 72 and the landing sill 73. As the gap detector 71, for example, a camera is used. The car sill 72 is installed on the floor of the car entrance 1. The landing threshold 73 is installed on the floor of the landing entrance / exit 31.

The diagnostic device main body 62 of the second embodiment diagnoses the soundness of the diagnosis target after the occurrence of the earthquake by comparing the gap size after the occurrence of the earthquake with the gap reference value. Further, the diagnostic device main body 62 has a gap detection unit 62a, a storage unit 62b, a gap determination unit 62c, and a notification unit 62d as functional blocks.

The gap detection unit 62a obtains the gap size between the car sill 72 and the landing sill 73 based on the signal from the gap detector 71. The storage unit 62b stores a gap reference value, which is a value corresponding to the gap dimension before the occurrence of an earthquake.

The gap reference value is, for example, a value obtained by adding an allowable value to the gap size before the occurrence of an earthquake or the gap size before the occurrence of an earthquake. The diagnostic apparatus main body 62 periodically updates the gap reference value, similarly to the gap reference value of the first embodiment.

The gap determination unit 62c determines whether or not there is an abnormality in the diagnosis target after the occurrence of the earthquake by comparing the post-earthquake dimension, which is the clearance dimension after the occurrence of the earthquake, with the gap reference value.

When the gap dimension before the occurrence of an earthquake is used as the gap reference value, the gap determination unit 62c determines that there is an abnormality when the difference between the post-earthquake dimension and the gap reference value exceeds the permissible value. When the value obtained by adding the allowable value to the gap size before the occurrence of the earthquake is used as the gap reference value, the gap determination unit 62c determines that there is an abnormality when the size after the earthquake exceeds the gap reference value.

The alarm unit 62d notifies the elevator control device 54 and the remote control room of the determination result by the gap determination unit 62c. Other configurations and operations are the same as those in the first embodiment.

As described above, the diagnostic device main body 62 of the second embodiment diagnoses the soundness of the diagnosis target after the occurrence of the earthquake by comparing the gap size after the occurrence of the earthquake with the gap reference value. Further, the gap detector 71 is provided in the car 57. Therefore, the configuration can be simplified and the cost can be reduced.

In addition, the degree of interlayer displacement due to an earthquake can be estimated from the gap size, and the soundness of the diagnostic object can be diagnosed.

Further, when the landing camera 74 is provided on the ceiling of the landing, the landing camera 74 can also be used as a gap detector. However, in that case, it becomes necessary to install a landing camera 74 at each landing.

Further, the diagnostic apparatus main body 62 periodically updates the gap reference value. Therefore, it is possible to eliminate changes over time and estimate the damage caused by the earthquake more accurately.

The gap detector 71 is not limited to the camera.

Further, it is preferable to set the gap reference value for each landing floor. Further, although it is preferable to execute the soundness diagnosis operation on all the landing floors, some landing floors may be selected and executed.

Further, the threshold value of the gap dimension may be manually set as the gap reference value.

Embodiment 3.
Next, FIG. 16 is a configuration diagram showing a soundness diagnosis device according to the third embodiment of the present invention. The soundness diagnostic device of the third embodiment includes a feature point detector 75 and a diagnostic device main body 63.

The feature point detector 75 is provided on the first car door 2. Further, the feature point detector 75 detects the position of the feature point which is a part of the landing door device. Further, as the feature point detector 75, for example, a camera is used.

The diagnostic device main body 63 of the third embodiment diagnoses the soundness of the diagnosis target after the occurrence of the earthquake by comparing the positions of the feature points after the occurrence of the earthquake with the reference positions. Further, the diagnostic device main body 63 has a position detection unit 63a, a storage unit 63b, a position determination unit 63c, and a notification unit 63d as functional blocks.

The position detection unit 63a obtains the position of the feature point based on the signal from the feature point detector 75. The storage unit 63b stores a reference position which is a position of a feature point before the occurrence of an earthquake.

The position determination unit 63c determines the presence or absence of an abnormality in the diagnosis target after the occurrence of the earthquake by comparing the post-earthquake position, which is the position of the feature point after the occurrence of the earthquake, with the reference position. Further, the position determination unit 63c determines that there is an abnormality when the amount of deviation of the post-earthquake position with respect to the reference position exceeds the threshold value.

The alarm unit 63d notifies the elevator control device 54 and the remote control room of the determination result by the position determination unit 63c.

FIG. 17 is a configuration diagram showing an example of a feature point to be detected by the feature point detector 75 of FIG. Although omitted in FIG. 4, the landing door device is provided with an interlock device 47. The interlock device 47 prevents the first and second landing doors 32 and 33 from being opened by an operation from the landing side when the car 57 is not on the floor.

Further, the interlock device 47 has a latch receiving member 48 and a latch 49. The latch receiving member 48 is fixed to the landing door girder 43. The latch 49 is rotatably provided on the second landing door hanger 39. By hooking the latch 49 on the latch receiving member 48, the opening operation of the first and second landing doors 32 and 33 is prevented.

In the soundness diagnostic apparatus of the third embodiment, for example, the tip of the latch 49 can be used as a feature point. FIG. 17 shows that the tip of the latch 49, which is a feature point, is displaced by Δx before and after the earthquake. Other configurations and operations are the same as those in the first embodiment.

As described above, the diagnostic apparatus main body 63 of the third embodiment diagnoses the soundness of the diagnosis target after the occurrence of the earthquake by comparing the positions of the feature points after the occurrence of the earthquake with the reference positions. Further, the feature point detector 75 is provided in the car 57. Therefore, the configuration can be simplified and the cost can be reduced.

In addition, the degree of interlayer displacement due to an earthquake can be estimated from the displacement of feature points, and the soundness of the diagnosis target can be diagnosed.

Further, the diagnostic device main body 63 periodically updates the reference position. Therefore, it is possible to eliminate changes over time and estimate the damage caused by the earthquake more accurately.

The feature point detector 75 is not limited to the camera.

Further, it is preferable to set the reference position for each landing floor. Further, although it is preferable to execute the soundness diagnosis operation on all the landing floors, some landing floors may be selected and executed.

Embodiment 4.
Next, FIG. 18 is a block diagram showing a soundness diagnostic apparatus according to a fourth embodiment of the present invention. The soundness diagnostic device of the fourth embodiment has a diagnostic device main body 64.

The diagnostic device main body 64 has a speed detection unit 64a, a torque detection unit 64b, a gap estimation unit 64c, a storage unit 64d, an inclination determination unit 64e as a diagnostic unit, and a notification unit 64f as functional blocks.

The functions of the speed detection unit 64a, the torque detection unit 64b, and the gap estimation unit 64c are the same as the functions of the speed detection unit 61a, the torque detection unit 61b, and the gap estimation unit 61c of the first embodiment, respectively.

The diagnostic device main body 64 obtains the gap size when the car 57 is stopped at the first position by the same estimation method as in the first embodiment. Further, the diagnostic apparatus main body 64 obtains the gap dimension when the car 57 is stopped at the second position shifted in the vertical direction with respect to the first position by the same estimation method as in the first embodiment.

Further, the diagnostic apparatus main body 64 obtains the difference between the gap dimension at the first position and the gap dimension at the second position. The first position and the second position are positions where the connecting roller 45 is arranged inside the vane mechanism 19 on the same landing floor.

The storage unit 64d stores the estimated gap size. Further, the storage unit 64d stores the allowable angle of inclination of the car 57.

The inclination determination unit 64e diagnoses the soundness of the diagnosis target after the occurrence of an earthquake based on the difference. Further, the inclination determination unit 64e estimates the inclination angle of the car 57 based on the difference in the gap dimensions described above. Further, the tilt determination unit 64e diagnoses the soundness of the diagnosis target after the occurrence of an earthquake by comparing the estimated tilt angle with the permissible angle.

The alarm unit 64f notifies the elevator control device 54 and the remote control room of the determination result by the inclination determination unit 64e.

FIG. 19 is a front view showing a state in which the car door device of FIG. 3 is tilted due to the tilt of the car 57. In the example of FIG. 19, the car door device is tilted by an angle Δφ from the horizontal state in the direction in which the second car door 3 side is lowered.

FIG. 20 is a front view showing the relationship between the vane mechanism 19 of FIG. 19 and the connecting roller 45 when the car 57 is located at the first position. Since the car door device is tilted by Δφ, the first and second vanes 19a and 19b are also tilted by Δφ with respect to the vertical direction.

As a result, at the first position, the gap dimension between the lower connecting roller 45 and the first vane 19a is increased by ΔX. Further, the gap size between the upper connecting roller 45 and the first vane 19a is reduced by ΔX.

FIG. 21 is a front view showing the relationship between the vane mechanism 19 of FIG. 19 and the connecting roller 45 when the car 57 is located at the second position. At the second position, the gap dimension between the lower connecting roller 45 and the first vane 19a is further increased by Δy with respect to the first position.

Therefore, the inclination determination unit 64e can estimate the inclination angle of the car 57 with respect to the landing door device based on the distance between the first position and the second position and Δy. Then, the tilt determination unit 64e determines that there is an abnormality when the tilt angle exceeds the allowable angle. Other configurations and operations are the same as those in the first embodiment.

As described above, in the diagnostic apparatus main body 64 of the fourth embodiment, the difference between the gap size when the car 57 is stopped at the first position and the gap size when the car 57 is stopped at the second position. And diagnose the soundness of the diagnosis target based on the difference. Therefore, the configuration can be simplified and the cost can be reduced.

In addition, the degree of interlayer displacement due to an earthquake can be estimated from the inclination angle of the car 57, and the soundness of the diagnosis target can be diagnosed.

The soundness diagnosis operation of the fourth embodiment may be performed at a time other than after the occurrence of the earthquake.

Further, it is preferable that the soundness diagnosis operation of the fourth embodiment is performed for each landing floor. Further, the soundness diagnosis operation of the fourth embodiment is preferably executed on all the landing floors, but some landing floors may be selected and executed.

It is also possible to combine two or more embodiments of the first to fourth embodiments.

Further, each function of the diagnostic apparatus main bodies 61 to 64 of the first to fourth embodiments is realized by a processing circuit. FIG. 22 is a configuration diagram showing a first example of a processing circuit that realizes each function of the diagnostic apparatus main bodies 61 to 64 according to the first to fourth embodiments. The processing circuit 100 of the first example is dedicated hardware.

Further, the processing circuit 100 includes, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof. Applicable. Further, each function of the diagnostic apparatus main body 61 to 64 may be realized by an individual processing circuit 100, or each function may be collectively realized by the processing circuit 100.

Further, FIG. 23 is a configuration diagram showing a second example of a processing circuit that realizes each function of the diagnostic apparatus main bodies 61 to 64 of the first to fourth embodiments. The processing circuit 200 of the second example includes a processor 201 and a memory 202.

In the processing circuit 200, each function of the diagnostic apparatus main body 61 to 64 is realized by software, firmware, or a combination of software and firmware. The software and firmware are described as a program and stored in the memory 202. The processor 201 realizes each function by reading and executing the program stored in the memory 202.

It can be said that the program stored in the memory 202 causes the computer to execute the procedure or method of each part described above. Here, the memory 202 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Online Memory), an EEPROM (Electrically Memory), or an EEPROM (Electrically Memory). A sexual or volatile semiconductor memory. Further, magnetic disks, flexible disks, optical disks, compact disks, mini disks, DVDs, and the like also fall under the memory 202.

It should be noted that some of the functions of the above-mentioned parts may be realized by dedicated hardware and some may be realized by software or firmware.

In this way, the processing circuit can realize the functions of the above-mentioned parts by hardware, software, firmware, or a combination thereof.

2 1st car door, 15 door motor, 19 vane mechanism, 33 2nd landing door, 45 interlocking roller (connecting member), 61c, 64c gap estimation unit, 61d, 64d storage unit, 61e gap determination unit (diagnosis unit) , 61f Torque determination unit (diagnosis unit), 62,63 Diagnostic device body, 64e tilt determination unit (diagnosis unit), 71 gap detector, 72 car threshold, 73 landing threshold, 75 feature point detector.

Claims (5)

Gap dimension between a connecting member provided on the elevator landing door and a vane mechanism provided on the elevator car door and interlocking the landing door with the car door by sandwiching the connecting member. Is estimated from at least one of the rotation speed and torque of the door motor of the elevator.
By comparing the storage unit that stores the gap reference value and the gap dimension after the occurrence of an earthquake with the gap reference value, a diagnostic object that is at least one of the building in which the elevator is provided and the elevator. A soundness diagnostic device equipped with a diagnostic unit that diagnoses the soundness after an earthquake. The elevator is provided by a storage unit that stores a torque reference waveform corresponding to the torque waveform of the door motor of the elevator before the occurrence of an earthquake, and by comparing the torque waveform of the door motor after the occurrence of an earthquake with the torque reference waveform. A health diagnosis device including a diagnostic unit that diagnoses the soundness of a building and the elevator, which is at least one of them, after an earthquake. The elevator is provided by a gap detector that is installed in the elevator car and detects the gap size between the car sill and the landing sill, and by comparing the gap size after an earthquake with the gap reference value. A soundness diagnostic device including a diagnostic device main body that diagnoses the soundness of a building to be diagnosed after an earthquake, which is at least one of the building and the elevator. The elevator is provided in the elevator car and detects the position of a feature point that is a part of the landing door device, and the position of the feature point after an earthquake is compared with a reference position. A health diagnostic device equipped with a diagnostic device main body that diagnoses the soundness of the object to be diagnosed after an earthquake, which is at least one of the building provided with the elevator and the elevator. Gap dimension between a connecting member provided on the elevator landing door and a vane mechanism provided on the elevator car door and interlocking the landing door with the car door by sandwiching the connecting member. Is estimated from at least one of the rotation speed and torque of the door motor of the elevator.
A storage unit that stores the permissible angle of inclination of the elevator car, the gap size when the car is stopped at the first position, and a second that is vertically displaced with respect to the first position. By obtaining the difference from the gap dimension when the car is stopped at the position, estimating the inclination angle of the car based on the difference, and comparing the estimated inclination angle with the allowable angle. A health diagnosis device including a diagnostic unit that diagnoses the soundness of a diagnosis target that is at least one of the building in which the elevator is provided and the elevator.

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