CN112424102A

CN112424102A - Health diagnostic device

Info

Publication number: CN112424102A
Application number: CN201880094440.4A
Authority: CN
Inventors: 伊藤然一; 菅原正行; 宫川健
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2021-02-26
Anticipated expiration: 2038-07-24
Also published as: JP7097972B2; WO2020021630A1; JPWO2020021630A1; CN112424102B

Abstract

The soundness diagnosis device includes a gap estimation unit, a storage unit, and a diagnosis unit. The clearance estimation unit estimates a clearance dimension between a coupling member provided in the landing door and a vane mechanism provided in the car door, based on at least one of a rotational speed and a torque of the door motor. The storage unit stores a gap reference value. The diagnosis unit compares the gap size after the occurrence of the earthquake with a gap reference value, thereby diagnosing the soundness of a diagnosis target after the occurrence of the earthquake, the diagnosis target being at least one of a building and an elevator.

Description

Health diagnostic device

Technical Field

The present invention relates to a soundness diagnosis apparatus for diagnosing soundness of a diagnosis target at least one of a building in which an elevator is installed and an elevator.

Background

In a conventional elevator temporary return operation system, a distance sensor and a target (target) are provided in a three-dimensional hall frame. The distance sensor is disposed above one end of the landing three-box in the width direction of the landing doorway. The target is disposed below the other end of the landing three-box in the width direction of the landing doorway. The evaluation unit determines the interlayer displacement of the building before and after the earthquake from the deformation of the three blocks at the landing (see, for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 9-120337

Disclosure of Invention

Problems to be solved by the invention

In the conventional elevator temporary return operation system as described above, it is necessary to provide a distance sensor and a target in three blocks at each landing, and the structure is complicated and the cost is high.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a robust diagnostic apparatus which can be simplified in structure and can reduce the cost.

Means for solving the problems

The health diagnosis device of the present invention includes: a gap estimation unit that estimates a gap size between a connection member provided at a landing door of an elevator and a vane (vane) mechanism provided at a car door of the elevator, and the landing door and the car door are interlocked by sandwiching the connection member, based on at least one of a rotational speed and a torque of a door motor of the elevator; a storage unit for storing a gap reference value; and a diagnosis unit which compares the gap size after the occurrence of the earthquake with a gap reference value to diagnose the soundness of a diagnosis target after the occurrence of the earthquake, wherein the diagnosis target is at least one of a building provided with an elevator and the elevator.

Further, the health diagnostic apparatus of the present invention includes: a storage unit that stores a torque reference waveform corresponding to a torque waveform of a door motor of an elevator before an earthquake occurs; and a diagnosis unit for comparing a torque waveform of the door motor after the occurrence of the earthquake with a torque reference waveform, thereby diagnosing soundness of a diagnosis target after the occurrence of the earthquake, the diagnosis target being at least one of a building in which the elevator is installed and the elevator.

Further, the health diagnostic apparatus of the present invention includes: a gap detector provided in a car of the elevator and detecting a gap size between a car sill and a landing sill; and a diagnosis device main body which compares the gap size after the earthquake and the gap reference value, thereby diagnosing the soundness of the diagnosis object after the earthquake, wherein the diagnosis object is at least one of a building provided with an elevator and the elevator.

Further, the health diagnostic apparatus of the present invention includes: a feature point detector provided in a car of an elevator and detecting a position of a feature point that is a part of a landing door device; and a diagnosis device main body which compares the position of the characteristic point after the earthquake occurrence with a reference position, thereby diagnosing the soundness of a diagnosis object after the earthquake occurrence, wherein the diagnosis object is at least one of a building provided with an elevator and the elevator.

Further, the health diagnostic apparatus of the present invention includes: a gap estimation unit that estimates a gap size between a connection member provided at a landing door of an elevator and a vane mechanism provided at a car door of the elevator, the landing door being interlocked with the car door by sandwiching the connection member, based on at least one of a rotational speed and a torque of a door motor of the elevator; a storage unit that stores an allowable angle of inclination of the elevator car; and a diagnosis unit which obtains a difference between a gap size when the car is stopped at a 1 st position and a gap size when the car is stopped at a 2 nd position vertically shifted from the 1 st position, estimates an inclination angle of the car based on the difference, and diagnoses soundness of a diagnosis target which is at least one of a building in which the elevator is installed and the elevator by comparing the estimated inclination angle with an allowable angle.

Effects of the invention

According to the health diagnostic apparatus of the present invention, the structure can be simplified, and cost reduction can be achieved.

Drawings

Fig. 1 is a schematic configuration diagram showing an example of an elevator to which a soundness diagnosis apparatus according to embodiment 1 of the present invention is applied.

Fig. 2 is a structural view showing a state in which the elevator of fig. 1 is displaced between floors by an earthquake.

Fig. 3 is a front view showing a car door device of the elevator of fig. 1.

Fig. 4 is a front view showing a landing door apparatus of the elevator of fig. 1.

Fig. 5 is a plan view showing a positional relationship between the vane (vane) mechanism of fig. 3 and the coupling roller of fig. 4 when the door is fully closed.

Fig. 6 is a plan view showing a state where the landing door roller is pinched by the door vane mechanism of fig. 5.

Fig. 7 is a plan view showing a state in the door opening operation of the door vane mechanism and the landing door roller of fig. 6.

Fig. 8 is a plan view showing a state in which a positional deviation due to an earthquake occurs between the 1 st car door and the 2 nd landing door of fig. 5.

Fig. 9 is a plan view showing a state where the landing door roller is pinched by the door vane mechanism of fig. 8.

Fig. 10 is a plan view showing a state in the door opening operation of the door vane mechanism and the landing door roller of fig. 9.

Fig. 11 is a graph showing an example of a rotation speed waveform and a torque waveform at the time of the door opening operation of the door motor of fig. 3.

Fig. 12 is a block diagram showing the door control device of fig. 3 and the soundness diagnosis device according to embodiment 1.

Fig. 13 is a flowchart showing a criterion updating operation performed by the diagnostic apparatus main body of fig. 12.

Fig. 14 is a flowchart showing a soundness diagnosis operation performed by the diagnosis apparatus main body of fig. 12.

Fig. 15 is a configuration diagram showing a soundness diagnosis apparatus according to embodiment 2 of the present invention.

Fig. 16 is a configuration diagram showing a soundness diagnosis apparatus according to embodiment 3 of the present invention.

Fig. 17 is a configuration diagram showing an example of a feature point to be detected by the feature point detector shown in fig. 16.

Fig. 18 is a block diagram showing a soundness diagnosis apparatus according to embodiment 4 of the present invention.

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.

Fig. 20 is a front view showing the relationship between the vane mechanism and landing door rollers of fig. 19 when the car is in the 1 st position.

Fig. 21 is a front view showing the relationship between the vane mechanism and landing door rollers of fig. 19 when the car is in the 2 nd position.

Fig. 22 is a configuration diagram showing an example 1 of a processing circuit for realizing each function of the diagnostic device main bodies according to embodiments 1 to 4.

Fig. 23 is a configuration diagram showing an example 2 of a processing circuit for realizing each function of the diagnostic device main bodies according to embodiments 1 to 4.

Detailed Description

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 a soundness diagnosis apparatus according to embodiment 1 of the present invention is applied. Fig. 2 is a structural diagram showing a state in which the elevator of fig. 1 is displaced between floors by an earthquake.

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

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 hoisting machine brake holds the stationary state of the drive sheave 55 or brakes the rotation of the drive sheave 55.

The 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.

The 1 st end of the suspension 56 is connected to the car 57. The 2 nd end of the suspension body 56 is connected to a counterweight, not shown. The car 57 and the counterweight are suspended in the hoistway 51 by the suspension body 56. The car 57 and the counterweight are raised and lowered in the hoistway 51 by the rotation of the drive sheave 55.

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

A 1 st car guide rail 58a and a 2 nd car guide rail 58b are provided in the hoistway 51. The 1 st and 2 nd

car guide rails

58a and 58b guide the up and down movement of the car 57.

Fig. 3 is a front view showing a car door device of the elevator shown in fig. 1, and is a view of a car door device viewed from a landing side.

The car doorway 1 is opened and closed by a 1 st car door 2 and a 2 nd car door 3. The 1 st car door 2 has a 1 st car door panel (door panel)4 and a 1 st car door hanger (door hanger) 5. The 1 st car door hanger 5 is fixed to an upper portion of the 1 st car door panel 4.

The 1 st car door hanger 5 is provided with a pair of 1 st car door rollers 6 and a pair of 1 st car door thrust rollers (door up-throttle) 7. The pair of 1 st car door thrust wheels 7 are disposed below the pair of 1 st car door rollers 6.

The 2 nd car door 3 has a 2 nd car door panel 8 and a 2 nd car door hanger 9. The 2 nd car door hanger 9 is fixed to an upper portion of the 2 nd car door panel 8.

The 2 nd car door hanger 9 is provided with a pair of 2 nd car door rollers 10 and a pair of 2 nd car door thrust rollers 11. The pair of 2 nd car door thrust rollers 11 are disposed below the pair of 2 nd car door rollers 10.

The car door beam 13 is fixed to the car above the car doorway 1. The car door beam 13 is provided with a car door guide 14. The 1 st and 2

nd car doors

2 and 3 are suspended from the car door guide 14.

When the 1 st and 2

nd car doors

2 and 3 are opened and closed, the 1 st and 2 nd

car door rollers

6 and 10 move on the car door guide rails 14 while rolling. The 1 st and 2 nd car door thrust

rollers

7 and 11 prevent the 1 st and 2 nd

car door rollers

6 and 10 from falling off the car door guide rail 14.

A door motor 15 is fixed to the car door beam 13. The door motor 15 generates a driving force for opening and closing the 1 st and 2

nd car doors

2 and 3. The door motor 15 is disposed at one end of the car door beam 13 in the width direction of the car doorway 1. The door motor 15 is disposed above the car door rail 14. The rotation shaft of the door motor 15 is parallel to the depth direction of the car and horizontal.

A motor pulley 16 is fixed to a rotating shaft of the door motor 15. A coupling pulley 17 is provided at the other end portion of the car door beam 13 in the width direction of the car doorway 1. The interlocking pulley 17 is disposed above the car door rail 14. The rotation axis of the link pulley 17 is parallel to the rotation axis of the door motor 15.

An annular transmission body 18 is wound between the motor pulley 16 and the linkage pulley 17. As the transmission body 18, for example, a transmission belt is used. The upper and lower portions of the transmission body 18 extend in parallel with the width direction of the car doorway 1.

The 1 st car door 2 is provided with a vane mechanism 19. The transmission body 18 is provided with a gripping member 20. The gripping member 20 grips the lower portion of the transmission body 18. The movement of the transmission body 18 is transmitted to the 1 st car door 2 via the gripping member 20. The transmission body 18 is cyclically operated by the door motor 15, and transmits the driving force of the door motor 15 to the 1 st car door 2.

The opening and closing operation of the 1 st car door 2 is transmitted to the 2 nd car door 3 via the car door interlocking mechanism 21. The door motor 15 is controlled by a door control device 22.

The car door apparatus of embodiment 1 is a side-opening type. That is, the 1 st and 2

nd car doors

2 and 3 move in the same direction during opening and closing operations.

The 1 st car door 2 as a high speed door is disposed on the side away from the door pocket when the car doorway 1 is fully closed. The 2 nd car door 3 as a low speed door is disposed 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 2 nd car door 3 of fig. 3. The 1 st car door 2 moves at a higher speed than the 2 nd car door 3 during opening and closing operations.

Fig. 4 is a front view showing a landing door apparatus of the elevator shown in fig. 1, and is a view of the landing door apparatus viewed from the hoistway side.

The landing doorway 31 is opened and closed by a 1 st landing door 32 and a 2 nd landing door 33. The 1 st landing door 32 has a 1 st landing door panel 34 and a 1 st landing door hanger 35. The 1 st landing door hanger 35 is fixed to the upper portion of the 1 st landing door panel 34.

The 1 st landing door hanger 35 is provided with a pair of 1 st landing door rollers 36 and a pair of 1 st landing door push-stop wheels 37. The pair of 1 st landing door push-stop wheels 37 are disposed below the pair of 1 st landing door rollers 36.

The 2 nd landing door 33 has a 2 nd landing door panel 38 and a 2 nd landing door hanger 39. The 2 nd landing door hanger 39 is fixed to the upper portion of the 2 nd landing door panel 38.

The 2 nd landing door hanger 39 is provided with a pair of 2 nd landing door rollers 40 and a pair of 2 nd landing door push-stop wheels 41. The pair of 2 nd landing door push-stop wheels 41 are disposed below the pair of 2 nd landing door rollers 40.

The landing door beam 43 is disposed above the landing doorway 31. A landing door rail 44 is provided on the landing door beam 43. The 1 st and 2

nd landing doors

32 and 33 are suspended from the landing door rail 44.

When the 1 st and 2

nd landing doors

32 and 33 are opened and closed, the 1 st and 2 nd landing

door rollers

36 and 40 move on the landing door rails 44 while rolling. The 1 st and 2 nd landing door push stop

wheels

37, 41 prevent the 1 st and 2 nd landing

door rollers

36, 40 from falling off the landing door rail 44.

The 2 nd landing door 33 is provided with a pair of coupling rollers 45 as coupling members. The link roller 45 includes a fixed-side interlock roller (interlock roller) and a movable-side interlock roller.

The coupling roller 45 is sandwiched by the vane mechanism 19 when the car stops and the 1 st car door 2 is opened. Thereby, the movable-side interlock roller rotates, and the lock device, not shown, is unlocked. Further, the vane mechanism 19 sandwiches the connecting roller 45, thereby interlocking the 2 nd landing door 33 with the opening and closing operation of the 1 st car door 2.

A landing door link mechanism 46 is provided on the landing door beam 43. The opening and closing operation of the 2 nd landing door 33 is transmitted to the 1 st landing door 32 via the landing door link mechanism 46.

Fig. 5 is a plan view showing a positional relationship between the door vane mechanism 19 of fig. 3 and the coupling roller 45 of fig. 4 when the door is fully closed. The vane mechanism 19 has a 1 st vane 19a and a 2 nd vane 19 b. The 1 st vane 19a and the 2 nd vane 19b are disposed parallel to each other and parallel to the vertical direction. In addition, the spacing between the 1 st vane 19a and the 2 nd vane 19b is variable.

When the door is fully closed, the 1 st vane 19a and the 2 nd vane 19b are separated from the connection roller 45. The gap size between the 1 st vane 19a and the coupling roller 45 when the door is fully closed is X.

Fig. 6 is a plan view showing a state where the coupling roller 45 is sandwiched by the door vane mechanism 19 of fig. 5. Fig. 7 is a plan view showing a state in which the door vane mechanism 19 and the connection roller 45 of fig. 6 are in the door opening operation.

When the door motor 15 starts the door opening operation, first, the interval between the 1 st door vane 19a and the 2 nd door vane 19b is narrowed, and the coupling roller 45 is sandwiched between the 1 st door vane 19a and the 2 nd door vane 19 b.

Thereafter, when the 1 st car door 2 starts moving to the pocket side, the 2 nd landing door 33 moves to the pocket side integrally with the 1 st car door 2.

Fig. 8 is a plan view showing a state in which a positional deviation due to an earthquake occurs between the 1 st car door 2 and the 2 nd landing door 33 in fig. 5. In the example of fig. 8, interlayer displacement is generated in the building 50 due to an earthquake. Thereby, the gap size is changed to X + Δ X. Further, an angular offset of an angular offset amount Δ θ is generated in the 2 nd landing door 33 with respect to the 1 st car door 2.

Fig. 9 is a plan view showing a state where the coupling roller 45 is sandwiched by the door vane mechanism 19 of fig. 8. Fig. 10 is a plan view showing a state in which the door vane mechanism 19 and the connection roller 45 of fig. 9 are in the door opening operation.

In the state of fig. 10, the 2 nd landing door 33 is opened while being tilted with respect to the 1 st car door 2.

Fig. 11 is a graph showing an example of a rotation speed waveform and a torque waveform of the door motor 15 of fig. 3 during a door opening operation. 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.

As shown in fig. 8 to 10, when the 2 nd landing door 33 is angularly displaced from the 1 st car door 2 by an earthquake, a running loss occurs in the 2 nd landing door 33. Therefore, the angular displacement amount can be estimated from the increase in the torque waveform as shown in fig. 11. Further, the deformation of the landing door rail 44 due to an earthquake can also be estimated from the torque variation.

Fig. 12 is a block diagram showing the door control device 22 of fig. 3 and the soundness diagnosis device according to embodiment 1. The door motor 15 is provided with a rotation detector 23 that generates a signal corresponding 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 includes, as functional blocks, 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 22 e.

The speed command unit 22a generates a rotation speed command value of the door motor 15 for opening and closing the 1 st and 2

nd car doors

2 and 3, and outputs the rotation speed command value to the speed control unit 22 b.

The speed control unit 22b corrects an error between the actual rotational speed of the door motor 15 and the rotational speed command value. The speed control unit 22b receives a rotational speed command value output from the speed command unit 22a and an actual rotational speed of the door motor 15 obtained from the speed calculation unit 22d and the filter processing unit 22 e.

In fig. 12, the error is obtained by inputting the rotation speed command value and the actual rotation speed of the door motor 15 to the 1 st adder-subtractor 24. Then, the speed control unit 22b outputs the rotation speed command value after error correction to the current control unit 22c as a 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 gate motor 15 via a pulse width modulation inverter, not shown.

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, the 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 to the 2 nd adder-subtractor 26.

Instead of the rotation detector 23, the motor rotation position or the rotation speed may be estimated using the current value detected by the current detector 25.

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

The filter processing unit 22e performs low-pass filter processing on the input rotation speed. The low-pass filtering process is a process of extracting a low-frequency region necessary for speed control by removing vibration components in a high-frequency region.

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

The soundness diagnosis apparatus according to embodiment 1 includes a diagnosis apparatus main body 61. The diagnostic device main body 61 diagnoses the soundness of the diagnostic object after the occurrence of the earthquake. The object to be diagnosed is at least one of the building 50 and the elevator. In addition, the diagnostic device main body 61 determines whether or not there is an abnormality that becomes an obstacle to restart the automatic operation of the elevator as soundness of a diagnostic target after an earthquake occurs.

The diagnostic device main body 61 includes, as functional blocks, a speed detecting unit 61a, a torque detecting unit 61b, a clearance estimating unit 61c, a storage unit 61d, a clearance determining unit 61e as a diagnostic unit, a torque determining unit 61f as a diagnostic unit, and a reporting unit 61 g.

The speed detector 61a detects the rotational 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 output from the speed control unit 22 b.

The clearance estimating unit 61c estimates the size of the clearance between the 1 st door vane 19a and the coupling roller 45 when the door is fully closed, based on the rotational speed and the torque of the door motor 15. When the gap size is estimated, the diagnostic device main body 61 outputs an estimated operation command to the door control device 22.

When the door control device 22 receives the estimated operation command, the 1 st and 2

nd car doors

2 and 3 are opened at a speed lower than normal in a state where the car 57 stops at the landing floor. At this time, the gap estimating unit 61c estimates the gap size from the change in the rotational speed and torque of the door motor 15.

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

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

The diagnostic device main body 61 periodically updates the backlash reference value and the torque reference waveform. The period of updating is, for example, once a day, once a week or once a month. The updating can also be done at the start of the elevator. Further, the update may be performed when an update instruction is manually input.

The gap determination unit 61e determines the presence or absence of an abnormality in the diagnostic object after the occurrence of the earthquake by comparing a post-earthquake estimated value, which is an estimated value of the gap size after the occurrence of the earthquake, with the gap reference value. Thus, the gap determination unit 61e diagnoses the soundness of the diagnostic object after the occurrence of the earthquake.

When the gap size before the occurrence of the earthquake is set as the gap reference value, the gap determination unit 61e determines that there is an abnormality when the difference between the post-earthquake estimated value and the gap reference value exceeds the allowable value. When the gap reference value is a value obtained by adding an allowable value to the gap size before the occurrence of the earthquake, 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 the presence or absence of an abnormality in the diagnostic target after the occurrence of an earthquake by comparing a post-earthquake waveform, which is a torque waveform after the occurrence of an earthquake, with a torque reference waveform. Thus, the gap determination unit 61f diagnoses the soundness of the diagnostic object after the occurrence of the earthquake.

The reporting unit 61g reports the determination results of the gap determining unit 61e and the torque determining unit 61f to the elevator control device 54 and a remote management room.

Fig. 13 is a flowchart showing a determination criterion updating operation performed by the diagnostic device main body 61 of fig. 12. The diagnostic device main body 61 updates the gap reference value and the torque reference waveform at the timing described above. When the criterion updating 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 device main body 61 acquires information on the rotational speed and torque of the door motor 15. Then, in step S3, the diagnostic device main body 61 estimates the gap size from the acquired information. Thereafter, in step S4, the diagnostic device main body 61 updates the backlash reference value and the torque reference waveform, and ends the processing.

Fig. 14 is a flowchart showing a soundness diagnosis operation performed by the diagnosis apparatus main body 61 of fig. 12. The diagnostic device main body 61 periodically executes the processing of fig. 14 in a set cycle. First, in step S11, the diagnostic device main body 61 confirms whether or not an earthquake equal to or greater than a set earthquake magnitude is detected.

When the earthquake is not detected, the diagnosis apparatus main body 61 ends the processing of this time. When an earthquake is detected, the diagnosis device main body 61 confirms whether or not the earthquake fluctuation has subsided in step S12. When the fluctuation has not subsided, the diagnosis apparatus main body 61 ends the present process.

When the shake has subsided, the diagnostic device main body 61 confirms whether or not the set time has elapsed in step S13. If the set time has not elapsed, the diagnostic device main body 61 ends the processing of this 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. Next, in step S15, the diagnostic device main body 61 acquires information on the rotational speed and torque of the door motor 15. Then, in step S16, the diagnostic device main body 61 estimates the gap size after the occurrence of the earthquake from the acquired information.

Thereafter, in step S17, the diagnostic device main body 61 determines whether or not there is an abnormality in the diagnostic object. Next, in step S18, the diagnostic device main body 61 outputs the determination result to the elevator control device 54 and the remote management room, and ends the processing.

In this way, in the soundness diagnosis apparatus according to embodiment 1, the diagnosis apparatus main body 61 estimates the gap size from the rotation speed and the torque of the door motor 15. Then, the diagnostic device main body 61 compares the gap size after the occurrence of the earthquake with the gap reference value, thereby diagnosing the soundness of the diagnostic object after the occurrence of the earthquake. Therefore, the structure can be simplified, and cost reduction can be achieved.

The diagnostic device main body 61 compares the torque waveform of the door motor 15 with the torque reference waveform, thereby diagnosing the soundness of the diagnostic object after the occurrence of the earthquake. Therefore, the structure can be simplified, and cost reduction can be achieved.

The diagnostic device main body 61 can estimate the degree of interlayer displacement caused by an earthquake from the gap size and the torque variation, and can diagnose the soundness of the diagnostic object.

The diagnostic device main body 61 periodically updates the backlash reference value and the torque reference waveform. Therefore, the temporal change can be removed, and the damage caused by the earthquake can be estimated more accurately.

Further, it is preferable that the gap reference value and the torque reference waveform are set for each landing floor. Although it is preferable to execute the soundness diagnosis operation on all the landing floors, it is also possible to select and execute a part of the landing floors.

Further, the threshold value of the gap size 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 from only the rotational speed or torque of the door motor 15.

Although embodiment 1 shows a side-opening type door device, the door device may be of a center-opening type. The number of doors is not limited to two.

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

Embodiment 2.

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

Further, the gap detector 71 detects the gap size between the car sill 72 and the landing sill 73. As the gap detector 71, for example, an imaging device is used. The car sill 72 is provided on the floor of the car doorway 1. The landing sill 73 is provided on the floor of the landing doorway 31.

The diagnostic device main body 62 according to embodiment 2 diagnoses the soundness of the diagnostic object after the occurrence of the earthquake by comparing the gap size after the occurrence of the earthquake with the gap reference value. The diagnostic device main body 62 includes, as functional blocks, a gap detection unit 62a, a storage unit 62b, a gap determination unit 62c, and a notification unit 62 d.

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 as a value corresponding to the gap size before the occurrence of an earthquake.

The gap reference value is, for example, a gap size before the occurrence of an earthquake or a value obtained by adding an allowable value to the gap size before the occurrence of an earthquake. The diagnostic device main body 62 periodically updates the gap reference value, similarly to the gap reference value of embodiment 1.

The gap determination unit 62c determines the presence or absence of an abnormality in the diagnostic target after the occurrence of an earthquake by comparing the post-earthquake size, which is the gap size after the occurrence of the earthquake, with the gap reference value.

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

The reporting unit 62d reports the determination result of the gap determining unit 62c to the elevator control device 54 and a remote management room. Other structures and operations are the same as those of embodiment 1.

In this way, the diagnostic device main body 62 according to embodiment 2 compares the gap size after the occurrence of the earthquake with the gap reference value, thereby diagnosing the soundness of the diagnostic target after the occurrence of the earthquake. The gap detector 71 is provided in the car 57. Therefore, the structure can be simplified, and cost reduction can be achieved.

Further, the degree of interlayer displacement caused by an earthquake is estimated from the gap size, and the soundness of the object to be diagnosed can be diagnosed.

In addition, when the landing imaging device 74 is provided on the ceiling of the landing, the landing imaging device 74 can be used as a gap detector. However, in this case, the landing imaging devices 74 need to be installed at each landing.

Further, the diagnostic device main body 62 periodically updates the gap reference value. Therefore, the temporal change can be removed, and the damage caused by the earthquake can be estimated more accurately.

In addition, the gap detector 71 is not limited to the image pickup device.

Further, it is preferable that the gap reference value is set for each landing floor. Although it is preferable to execute the soundness diagnosis operation on all the landing floors, it is also possible to select and execute a part of the landing floors.

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

Embodiment 3.

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

The feature point detector 75 is provided at the 1 st car door 2. Further, the feature point detector 75 detects the position of a feature point that is a part of the landing door device. Further, as the feature point detector 75, for example, an imaging device is used.

The diagnostic device main body 63 according to embodiment 3 diagnoses the soundness of the diagnostic object after the occurrence of the earthquake by comparing the position of the feature point after the occurrence of the earthquake with the reference position. The diagnostic device main body 63 includes, as functional blocks, a position detection unit 63a, a storage unit 63b, a position determination unit 63c, and a notification unit 63 d.

The position detector 63a obtains the position of the feature point from the signal from the feature point detector 75. The storage unit 63b stores a reference position that is the position of the feature point before the occurrence of the earthquake.

The position determination unit 63c determines whether or not there is an abnormality in the diagnostic target after the occurrence of an earthquake by comparing the post-earthquake position, which is the position of the feature point after the occurrence of an earthquake, with the reference position. The position determination unit 63c determines that there is an abnormality when the amount of displacement of the post-earthquake position from the reference position exceeds a threshold value.

The reporting unit 63d reports the determination result of the position determining unit 63c to the elevator control device 54 and a remote management room.

Fig. 17 is a configuration diagram showing an example of a feature point to be detected by the feature point detector 75 in fig. 16. Although omitted in fig. 4, an interlock device 47 is provided in the landing door device. The interlock device 47 prevents the 1 st and 2

nd landing doors

32 and 33 from being opened by an operation from the landing side when the car 57 is not yet at a stop.

Furthermore, the interlock 47 has a latch receiving part 48 and a latch 49. The latch receiving member 48 is fixed to the landing door beam 43. The latch 49 is provided rotatably to the 2 nd landing door hanger 39. The 1 st and 2

nd landing doors

32 and 33 are prevented from opening by hooking the latch 49 on the latch receiving member 48.

In the soundness diagnosis apparatus according to embodiment 3, for example, the tip of the latch 49 can be used as a feature point. Fig. 17 shows a case where the tip of the latch 49 as a characteristic point is shifted by Δ x before and after the earthquake. Other structures and operations are the same as those of embodiment 1.

In this way, the diagnostic device main body 63 of embodiment 3 diagnoses the soundness of the diagnostic object after the occurrence of the earthquake by comparing the position of the feature point after the occurrence of the earthquake with the reference position. The feature point detector 75 is provided in the car 57. Therefore, the structure can be simplified, and cost reduction can be achieved.

Further, the degree of interlayer displacement caused by an earthquake is estimated from the displacement of the feature point, and the soundness of the object to be diagnosed can be diagnosed.

The diagnostic device main body 63 updates the reference position periodically. Therefore, the temporal change can be removed, and the damage caused by the earthquake can be estimated more accurately.

In addition, the feature point detector 75 is not limited to the imaging device.

Further, it is preferable that the reference position is set for each landing floor. Although it is preferable to execute the soundness diagnosis operation on all the landing floors, it is also possible to select and execute a part of the landing floors.

Embodiment 4.

Next, fig. 18 is a block diagram showing a soundness diagnosis apparatus according to embodiment 4 of the present invention. The soundness diagnosis apparatus according to embodiment 4 includes a diagnosis apparatus main body 64.

The diagnostic device main body 64 includes, as functional blocks, a speed detection unit 64a, a torque detection unit 64b, a clearance estimation unit 64c, a storage unit 64d, a tilt determination unit 64e as a diagnostic unit, and a notification unit 64 f.

The functions of the speed detector 64a, the torque detector 64b, and the clearance estimator 64c are the same as those of the speed detector 61a, the torque detector 61b, and the clearance estimator 61c of embodiment 1, respectively.

The diagnostic device main body 64 determines the gap size when the car 57 is stopped at the 1 st position by the same estimation method as that of embodiment 1. The diagnostic device main body 64 determines the gap size when the car 57 is stopped at the 2 nd position shifted vertically from the 1 st position by the same estimation method as that of embodiment 1.

The diagnostic device main body 64 also obtains the difference between the gap size at the 1 st position and the gap size at the 2 nd position. The 1 st position and the 2 nd position are positions where the connecting roller 45 is disposed inside the door vane mechanism 19 at the same landing floor.

The storage unit 64d stores the estimated gap size. The storage portion 64d also 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 the earthquake based on the difference. The inclination determination unit 64e estimates the inclination angle of the car 57 based on the difference in the gap sizes. The inclination determination unit 64e compares the estimated inclination angle with the allowable angle, thereby diagnosing the soundness of the diagnostic object after the occurrence of the earthquake.

The reporting unit 64f reports the determination result of the inclination determination unit 64e to the elevator control device 54 and the remote management room.

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 inclined at an angle in a direction in which the car door 2 descends from a horizontal state toward the car door 32 side

Fig. 20 is a front view showing a relationship between the vane mechanism 19 and the connecting roller 45 of fig. 19 when the car 57 is located at the 1 st position. Car door device is inclined

Thus, the 1 st and 2

nd door vanes

19a and 19b are also inclined with respect to the vertical direction

Thereby, at the 1 st position, the gap size between the lower coupling roller 45 and the 1 st vane 19a is increased by Δ X. Further, the gap size between the upper connecting roller 45 and the 1 st vane 19a is reduced by Δ X.

Fig. 21 is a front view showing a relationship between the vane mechanism 19 and the connecting roller 45 of fig. 19 when the car 57 is located at the 2 nd position. At the 2 nd position, the gap size between the lower link roller 45 and the 1 st door vane 19a is further increased by Δ y with respect to the 1 st 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 Δ y between the 1 st position and the 2 nd position. The inclination determination unit 64e determines that there is an abnormality when the inclination angle exceeds the allowable angle. Other structures and operations are the same as those of embodiment 1.

In this way, the diagnostic device main body 64 of embodiment 4 obtains the difference between the gap size when the car 57 is stopped at the 1 st position and the gap size when the car 57 is stopped at the 2 nd position, and diagnoses the soundness of the diagnostic object based on the difference. Therefore, the structure can be simplified, and cost reduction can be achieved.

Further, the degree of interlayer displacement caused by an earthquake is estimated from the inclination angle of the car 57, and the soundness of the object to be diagnosed can be diagnosed.

The soundness diagnosis operation according to embodiment 4 may be performed at a time other than after the occurrence of the earthquake.

The soundness diagnosis operation according to embodiment 4 is preferably performed for each elevator floor. Although it is preferable to execute the soundness diagnosis operation of embodiment 4 on all the landing floors, it is also possible to select and execute a part of the landing floors.

Two or more embodiments of embodiments 1 to 4 may be combined.

The functions of the diagnostic device main bodies 61 to 64 according to embodiments 1 to 4 are realized by a processing circuit. Fig. 22 is a configuration diagram showing an example 1 of a processing circuit for realizing each function of the diagnostic device main bodies 61 to 64 according to embodiments 1 to 4. The processing circuit 100 of example 1 is dedicated hardware.

The processing Circuit 100 is, 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 processing Circuit in which these components are combined. The functions of the diagnostic device main bodies 61 to 64 may be realized by the processing circuit 100 alone, or the functions may be realized by the processing circuit 100 in a lump.

Fig. 23 is a configuration diagram showing an example 2 of a processing circuit for realizing each function of the diagnostic device main bodies 61 to 64 according to embodiments 1 to 4. The processing circuit 200 of example 2 includes a processor 201 and a memory 202.

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

The program stored in the memory 202 can also be said to be a program for causing a computer to execute the steps or methods of the above-described respective sections. Here, the Memory 202 is a nonvolatile or volatile semiconductor Memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash Memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable and Programmable Read Only Memory), or the like. Further, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, and the like also correspond to the memory 202.

The functions of the above-described respective units may be partly implemented by dedicated hardware and partly implemented by software or firmware.

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

Description of the reference symbols

2: 1 st car door; 15: a door motor; 19: a door vane mechanism; 33: a 2 nd landing door; 45: a linkage roller (connecting member); 61c, 64 c: a gap estimation unit; 61d, 64 d: a storage unit; 61 e: a gap determination unit (diagnosis unit); 61 f: a torque determination unit (diagnosis unit); 62. 63: a diagnostic device body; 64 e: an inclination determination unit (diagnosis unit); 71: a gap detector; 72: a car sill; 73: landing sill; 75: and a feature point detector.

Claims

1. A soundness diagnostic device, comprising:

a gap estimation unit that estimates a gap size between a connection member provided at a landing door of an elevator and a vane mechanism provided at a car door of the elevator, based on at least one of a rotational speed and a torque of a door motor of the elevator, and that causes the landing door to be interlocked with the car door by sandwiching the connection member;

a storage unit for storing a gap reference value; and

and a diagnosis unit which compares the gap size after the occurrence of the earthquake with the gap reference value to diagnose the soundness of a diagnosis target after the occurrence of the earthquake, the diagnosis target being at least one of the building in which the elevator is installed and the elevator.

2. A soundness diagnostic device, comprising:

a storage unit that stores a torque reference waveform corresponding to a torque waveform of a door motor of an elevator before an earthquake occurs; and

and a diagnosis unit which compares a torque waveform of the door motor after an earthquake with the torque reference waveform to diagnose soundness of a diagnosis target after the earthquake, the diagnosis target being at least one of a building in which the elevator is installed and the elevator.

3. A soundness diagnostic device, comprising:

a gap detector provided in a car of the elevator and detecting a gap size between a car sill and a landing sill; and

and a diagnosis device main body which compares the gap size after the earthquake with a gap reference value, thereby diagnosing the soundness of a diagnosis object after the earthquake, wherein the diagnosis object is at least one of the building provided with the elevator and the elevator.

4. A soundness diagnostic device, comprising:

a feature point detector provided in a car of an elevator and detecting a position of a feature point that is a part of a landing door device; and

and a diagnosis device main body which compares the position of the characteristic point after the earthquake occurrence with a reference position, thereby diagnosing the soundness of a diagnosis object after the earthquake occurrence, wherein the diagnosis object is at least one of a building provided with the elevator and the elevator.

5. A soundness diagnostic device, comprising:

a storage unit that stores an allowable angle of inclination of a car of the elevator; and

and a diagnosis unit that obtains a difference between the gap size when the car is stopped at a 1 st position and the gap size when the car is stopped at a 2 nd position that is vertically shifted from the 1 st position, estimates an inclination angle of the car from the difference, and diagnoses soundness of a diagnosis target that is at least one of a building in which the elevator is installed and the elevator by comparing the estimated inclination angle with the allowable angle.