JP2003192248A - Remote maintenance system for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote maintenance system for an elevator capable of performing maintenance and inspection of a hoist machine at operation of the elevator, confirming circumstances before and after abnormality from a remote place when the abnormality occurs, and easily investigating the cause when the abnormality is found in the hoist machine, and capable of grasping suitable time for replacing expendables. <P>SOLUTION: A central processing device 4 of a remote maintenance device 1 controls a position and a direction of a camera 11 and a microphone 12 for monitoring the condition of the hoist machine so that the camera 11 and the microphone 12 can scan in a range that a whole of the hoist machine can be monitored. The central processing device 4 successively receives sound from the microphone 12 and compares it with a threshold so as to determine the existence of the abnormality. When the central processing device 4 determines the existence of the abnormality, the position or the direction wherein the sound is the maximum is identified, and the microphone 12 and the camera 11 are moved or directed to the position or the direction in order to receive the sound and the image. The received sound and the image are transmitted to a maintenance center 6 with an interrupt signal. The maintenance center 6 outputs the received sound and the image to a speaker or a screen. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator remote maintenance system for remotely performing maintenance and inspection of a hoist for a machine room-less elevator, in which a hoist is installed in a hoistway.

[0002]

2. Description of the Related Art In a conventional machine room-less elevator, a hoist is installed in the hoistway, and since the distance between the hoist and the car traveling part is small, maintenance personnel enter the hoistway during normal operation. It is dangerous because there is no space to work.
Therefore, at the time of maintenance and inspection of the hoist, the maintenance staff had to enter the hoistway and perform maintenance and inspection after stopping the elevator.

Also, when an abnormality occurs in the hoist, the elevator is stopped as in the case of maintenance and inspection, and maintenance personnel enter the hoistway to find the cause of the abnormality. In order to identify the cause of the abnormality, it is relatively easy to identify if the elevator hoisting machine that is actually operating normally or at high speed can be directly confirmed with eyes or ears. However, as described above, in the machine room-less elevator, a person cannot enter the hoistway during the normal operation, so it is only possible to guess by looking at the state of the hoisting machine in the stopped state. Therefore, it was difficult to find the cause.

When the consumable parts of the hoisting machine are to be replaced, it is possible to easily judge the consumption level of the consumable parts and the presence / absence of abnormality by directly checking the presence or absence of abnormal noise while the elevator is normally operating. However, in the conventional machineless elevator, such confirmation cannot be performed during normal operation or high speed operation because it is dangerous. Therefore, it was necessary to visually check after stopping the elevator.

Further, the consumable parts of the hoisting machine are replaced based on the integrated values of the operating time and the traveling distance of the elevator. The degree of wear of individual elevator hoisting machines varies depending on the frequency of operation, operating time, operating speed, etc., but since the consumable parts of the hoisting machine are currently replaced only based on operating time and mileage, It was not possible to confirm in advance the optimum replacement time for each elevator.

[0006]

As described above, in the conventional elevator remote maintenance system, the elevator must be stopped at the time of maintenance and inspection, which requires time for maintenance and inspection work.

Further, in order to confirm the degree of consumption of the consumables and the presence or absence of abnormality, it is necessary to visually check after stopping the elevator.

If an abnormality occurs in the hoist,
There is a problem that it is difficult to find the cause because the only way to identify the cause is to guess by looking at the state of the hoisting machine in the stopped state.

Further, since the consumable parts of the hoisting machine are replaced based only on the operating time, there is a problem that the optimum replacement time of each elevator cannot be confirmed in advance.

The present invention has been made to solve the above-mentioned problems, and realizes the maintenance and inspection of the hoisting machine while confirming the maintenance and inspection of the hoist from a remote place by a picture and a sound during normal operation or high speed operation. The purpose is to In addition, when an abnormality occurs, the purpose is to remotely check the situation before and after the abnormality. It also aims to promote an optimal replacement time for the consumable parts of the hoist.

[0011]

SUMMARY OF THE INVENTION An elevator remote maintenance system according to the present invention includes a camera for collecting an image of a hoist, a microphone for picking up the sound of the hoist, and a position or direction of the microphone and the camera. A remote maintenance device connected to the drive mechanism, the microphone, and the camera; and a maintenance center connected to the remote maintenance device via a wireless or wired network. Instruct the drive mechanism to change the position or direction with the microphone and camera, receive sound from the microphone with changed position or direction, judge the presence or absence of abnormality based on this sound, and when abnormality occurs, A control means for sending an image and a sound of an abnormal portion of the hoisting machine to the maintenance center together with an interrupt signal, and the microphone and the camera. Those having a memory for storing the location or direction and video.

The elevator remote maintenance system according to the present invention has a microphone and a camera integrated with each other.

Also, the elevator remote maintenance system according to the present invention instructs the drive mechanism to change the position or orientation of the microphone and the camera in response to a command from the maintenance center, and the microphone and camera whose position or orientation has changed. It is provided with a control means for receiving the sound and image of the hoist and sending the sound and image to the maintenance center.

Further, the elevator remote maintenance system according to the present invention instructs the drive mechanism to change the position or orientation of the microphone and the camera, and the sound and image of the hoist from the microphone and camera whose position or orientation is changed. Is provided, the sound and the image are recorded in the memory, and the sound and the image stored in the memory are read from the maintenance center.

Further, the elevator remote maintenance system according to the present invention is a zigzag system in which the position or direction of the microphone is scanned in the right direction, then in the left direction, and then in the right direction. It is provided with a control means for instructing the drive mechanism to perform a change instruction so that the scanning is performed by.

The elevator remote maintenance system according to the present invention is a zigzag system in which the position or direction of the microphone is scanned in the upward direction, then in the downward direction, and then in the upward direction. It is provided with a control means for instructing the drive mechanism to perform a change instruction so that the scanning is performed by.

In the elevator remote maintenance system according to the present invention, the microphone and the camera are first set in the directions or positions.
The control means for giving a variation instruction to the drive mechanism is provided so as to combine the scanning in the plane of 1) with the scanning in the second plane orthogonal to the first plane.

Further, the elevator remote maintenance system according to the present invention is provided with two sets of integrated winder observation microphones and cameras at different positions.

Further, the elevator remote maintenance system according to the present invention first instructs the drive mechanism to change the position or orientation of the microphone and the camera in block units, and receives from the microphone and camera whose position or orientation has changed. The presence or absence of an abnormality is determined based on the sound, and when an abnormality occurs, the drive mechanism is instructed to change the position or orientation of the microphone and the camera in a finer unit in the block where the abnormality occurs, and the position or orientation is again determined. And a control means for specifying the direction of the abnormality based on the sound received from the microphone and the camera that have changed.

Further, in the elevator remote maintenance system according to the present invention, the loudness of the sound received from the microphone is higher than the threshold value determined based on the average value of the generated sound when the failure rate of the hoisting machine is in the stable period. It is provided with a control means for judging an abnormality when it is large.

Further, the elevator remote maintenance system according to the present invention comprises a lighting device for photographing a camera, and the lighting device is turned on only when the driving mechanism drives the camera.
However, the others are provided with an ON / OFF control unit for lighting which is turned OFF.

In the elevator remote maintenance system according to the present invention, the lighting device is integrated with the microphone and the camera.

Further, in the elevator remote maintenance system according to the present invention, the microphone is replaced with a heat sensitive device capable of judging whether or not there is an abnormality even with heat.

In the elevator remote maintenance system according to the present invention, the heat sensitive device is an infrared camera.

Further, in the elevator remote maintenance system according to the present invention, the microphone is replaced with a vibration sensor capable of judging whether or not there is an abnormality even by vibration.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. First Embodiment FIG. 1 is a block diagram of an elevator remote device showing a first embodiment of the present invention. In the figure, 1 is a remote maintenance device, 10 is a hoistway, 11 is a camera for taking images of the hoist 13,
Reference numeral 2 is a microphone that captures the sound of the winding machine 13. Further, reference numeral 15 is a camera interface for capturing the image of the camera 11, and 16 is a microphone interface for capturing the sound of the microphone 12. 2 is a camera switch for switching the image of the surveillance camera 8 inside the basket 7 and the image of the camera 11 3 is the basket 7
This is a microphone switch that switches between the sound collected by the inner monitoring microphone 9 and the sound collected by the microphone 12. Further, 6 is a maintenance center which is connected to the network control device 5 via a telephone line and monitors the central processing unit 4 (control means) of the remote maintenance device 1, and 14 is a memory.

FIG. 2 is a schematic view of the winding machine, a microphone that collects the sound of the winding machine, a camera that shoots the sound, and a rotary drive mechanism. The camera 11 and the microphone 12 are integrally configured as shown in FIG. 2, and fixed to a frame installed near the hoisting machine 13 at a position where the traveling of the car is not hindered.
The gantry is rotated in the left-right direction and the up-down direction by the rotation drive mechanism. The rotation drive mechanism has two built-in servo motors, and the positive and negative drive signals are separately sent from the central processing unit 4 of the remote maintenance device 1 to the two servo motors, whereby the orientations of the camera 11 and the microphone 12 are wound. In the range including 13 as a whole, it can be freely changed in the left-right direction and the up-down direction. It is assumed that the lighting device is always in the ON state so as to obtain the lighting for driving the camera (this is also common to the following embodiments).

Next, the operation of the first embodiment will be described with reference to FIGS. In the remote maintenance device 1, the central processing unit 4 constantly switches the camera switch 2 and the microphone switch 3 to the car side, monitors the camera and the microphone in the car 7, and records them in the memory. When the memory is full of data, the central processing unit 4 controls the oldest data to be deleted each time new data is added. The monitoring data in the car 7 is read by the maintenance center 6 regularly or when necessary. On the other hand, the central processing unit 4 switches the camera switch 2 and the microphone switch 3 to the camera interface side and the microphone interface side, respectively, at every predetermined time (periodically), checks the state of the hoisting machine 13, and detects abnormal noise. Check whether is not occurred. In this case, the presence / absence of abnormal noise is determined by comparing with a preset value (threshold value). This threshold value is obtained by adding a predetermined offset value to the average value of the sound of the hoisting machine 13 obtained by measuring a plurality of times during the stable period excluding the initial failure period and the aged failure period as shown in FIG. To use. In addition, what is used as the threshold value is not limited to this, and for example, the result of multiplying the average value of the sound of the winding machine 13 by a predetermined value (for example, 1.3) may be used.

The presence / absence of abnormal noise is determined as follows. As described above, the rotation drive mechanism can freely change the directions of the microphone 12 and the camera 11 within the range including the entire hoisting machine 13. The central processing unit 4 periodically instructs the rotary drive mechanism to scan the entire range including the entire winding machine 13 in the direction of the microphone 12. That is, the direction of the microphone 12 is an initial angle, for example, scanning is started from the lowermost and leftmost direction within the movable range of the microphone 12, and the direction of the microphone is set to a predetermined angle in the X-axis direction (horizontal direction). Δθ) in the right direction, and when the angle exceeds the rightmost end of the above range, the horizontal angle is returned to the leftmost direction, and the Z-axis direction (vertical direction) is oriented to a predetermined angle (Δ
The direction of the microphone 12 is changed in the X-axis direction and the Z-axis direction by repeatedly changing the direction of the microphone 12 rightward in the X-axis direction (horizontal direction) by Δθ. Both are scanned up to the maximum angle in the above range. Then, the digitized sound of the winding machine 13 in each direction obtained by the series of scanning is recorded in the memory.

Next, the sound recorded in the memory is read out,
Compare with the threshold value, check if there is anything exceeding the threshold value,
If there is something that exceeds the threshold value, it is determined that an abnormality has occurred, and the microphone 12 is turned to the direction of the loudest sound, and the microphone 1
The camera 11 integrated with 2 is driven. This allows
It is possible to take an image of the portion of the winding machine 13 that is most likely to have a failure. And
The obtained image is digitized by the camera interface 15 and the sound is digitized by the microphone interface 16 and input to the central processing unit 4. Central processing unit 4
Transmits the digitized image and sound together with the abnormality occurrence interrupt signal to the maintenance center 6 via the network control device 5 and the telephone line. Maintenance center 6
When receiving the abnormality occurrence interrupt signal, the alarm signal is output to an alarm to call the operator's attention, and the digitalized image and sound are restored and output to a screen, a speaker and the like. This data is used for failure analysis and the like.

4 and 5 are flow charts showing the operation of the hoisting machine status monitoring by the central processing unit 4. Next, the operation of monitoring the condition of the hoisting machine by the central processing unit 4 will be described with reference to FIGS. 4 and 5. First, in the remote maintenance device 1, the central processing unit 4 switches the camera switch 2 to the camera interface side and switches the microphone switch 3 to the microphone interface side (step S
401). Next, the central processing unit 4 sets initial values (for example, 0, 0) to the angles in the X and Z axis directions, and specifies the start address of the memory (step S402). Next, the central processing unit 4 sends the angles in the X and Z axis directions to the rotary drive mechanism via the microphone interface 16 (step S403). The rotary drive mechanism points the microphone 12 according to the values in the X and Z axis directions. Next, the microphone 12 collects sound at a portion of the winding machine 13 in the direction toward which the microphone 12 is directed, and sends the obtained sound volume to the central processing unit 4. The central processing unit 4 receives the sound, stores the loudness of the sound in the memory, and increases the address of the memory by one (step S40).
4). The amplitude of the sound may be used as the loudness of the sound, or the power value may be used.

Next, the central processing unit 4 increases the angle in the X-axis direction by Δθ (step S405), and the angle in the X-axis direction has a maximum value Θ (this maximum value Θ is determined at the system design stage, It is checked whether or not the value has been set in advance) (step S406). If the angle in the X-axis direction does not exceed the maximum value Θ, the process jumps to step S403. Step S4
At 06, if the angle in the X-axis direction exceeds the maximum value Θ,
An initial value (for example, 0) is set to the angle in the X-axis direction and the angle in the Z-axis direction is increased by Δφ (step S40).
7). Next, the angle in the Z-axis direction has a maximum value Φ (this maximum value Φ
Is determined at the stage of system design and set in advance) is checked (step S408). Z
When the angle in the axial direction exceeds the maximum value Φ, the process jumps to step S409. If the angle in the Z-axis direction does not exceed the maximum value Φ, the process returns to step S403.

In step S409, the start address of the memory and the start address of the memory for abnormality are designated. Next, the loudness of the sound is retrieved from the memory (step S410),
The loudness of this sound is compared with the threshold value (step S41).
1). If the volume of the sound from the memory is louder, the volume and angle of the sound are stored in the memory for abnormality (step S412), and then the process jumps to step S413. If the volume of the sound from the memory is smaller, the process jumps to step S413. In step S413, the memory address is increased by one and the abnormality memory address is also increased by one, and then it is checked whether or not the memory address is the last one (step S414). If the memory address is not the final one, the process jumps to step S411. If the memory address is the final address, the one with the largest abnormal sound volume is obtained and the angle is sent to the rotary drive mechanism (step S415).

The rotary drive mechanism directs the microphone 12 and the camera 11 toward the maximum direction of the abnormal sound based on the angles in the X and Z axis directions designated by the central processing unit 4.
And driving the camera 11. As a result, the microphone 12 and the camera 1 capture the sound and the image of the part in the direction in which the abnormal sound of the winding machine is the largest, and the image is captured by the central processing unit 4.
Send to. The central processing unit 4 includes a microphone 12 and a camera 11.
The sound and the image are received from, the interrupt signal is created, and the interrupt signal is sent to the maintenance center 6 together with the sound and the image (step S416).

As described above, the microphone and the camera, which are arranged near the hoisting machine, are automatically driven from the remote device periodically to monitor the state of the hoisting machine, and when an abnormality occurs, the image is automatically sent to the maintenance center. Since a sound is sent to notify by an interrupt signal, it is possible to confirm the situation before and after the abnormality at a remote maintenance center without entering the hoistway when the abnormality occurs.

Further, since the microphone and the camera are integrated, the position or direction of the camera can be directed to the portion where the abnormal sound of the hoisting machine is maximum by simply controlling the direction of only the microphone. Need not be controlled separately,
Accordingly, the memory capacity can be reduced and the processing speed can be increased.

Further, the maintenance center 6 issues a command to the remote maintenance device 1 at the time of maintenance and inspection or when it is desired to check the degree of wear of the consumable parts of the hoist. As a result, the central processing unit 4 causes the camera switch 2 and the microphone switch 3 to operate.
Are switched to the camera interface side and the microphone interface side, respectively, and the sounds and images of the respective parts of the hoisting machine are taken in with the directions of the microphone 12 and the camera 11 directed at the angles instructed by the maintenance center 6. It is sent to the central processing unit 4 via 16. When the central processing unit 4 receives the digitized sound and image from the microphone 12 and the camera 11, the central processing unit 4 sends the sound and image to the maintenance center 6 via the network control unit 5. When the maintenance center 6 receives the digitized sound and image from the central processing unit 4,
This is output to a speaker or display device, and whether there is an abnormal part,
Useful for analyzing the degree of wear of consumables.

As described above, the microphone and the camera arranged near the hoisting machine are automatically driven by the command from the maintenance center to monitor the condition of the hoisting machine, and the sound and image are taken in by the maintenance center. Therefore, during normal operation or high-speed operation, the automatic maintenance inspection can be performed at the remote maintenance center while checking the image and sound. Further, during normal operation or high-speed operation, it becomes possible to determine the optimum replacement time of the consumable parts of the hoisting machine at a remote maintenance center.

A remote device periodically drives a microphone and a camera arranged near the hoist to monitor the condition of the hoist and records sound and images in a memory. The sound and video stored in the memory may be read out when necessary. Also in this case, the automatic maintenance and inspection can be performed at the remote maintenance center repeatedly during normal operation or high-speed operation while repeatedly confirming with the image and sound, and the maintenance inspection and the consumption level analysis of consumable parts can be performed.

Further, in the above example, the direction of the microphone is scanned every time in the direction in which the X axis increases (to the right), but the invention is not limited to this, and if scanning to the right, then to the left. A zigzag method may be adopted in which scanning is performed and then scanning is further performed in the right direction. In this case as well, not only the same effect as described above can be obtained but also the scanning time can be shortened.

In the above example, the X-axis direction is scanned first, and then the Z-axis direction is scanned. However, the present invention is not limited to this, and the Z-axis direction is scanned first. Next, scanning in the X-axis direction may be performed. Also in this case, the same effect as the above is obtained. Alternatively, a zigzag method may be adopted in which after scanning in the upward direction, scanning in the downward direction is performed next, and then scanning in the upward direction is repeated. In this case as well, not only the same effect as described above can be obtained but also the scanning time can be shortened.

In the above example, the microphone and camera are scanned in the X and Z axis directions, but the microphone and camera may be scanned in the Y and Z axis directions.
Also in this case, the same effect is obtained.

In the above example, scanning is performed only in the directions of the microphone and the camera in the X and Z axis directions (in the XZ plane), but the directions of the microphone and camera are set in the X and Z axis directions (X and Z directions).
The scanning in the Z plane) and the scanning in the Y and Z axis directions (in the YZ plane) may be combined. In this case, the direction of the camera can be directed from the two directions independent of each other to the part where the abnormal sound is most likely to occur, so that the microphone and the camera are directed in the X and Z axis directions (in the XZ plane). It is possible to take an image of an abnormal portion with higher accuracy than scanning by only using.

Embodiment 2. In the first embodiment, the directions of the integrated microphone and camera are changed little by little in the X-axis direction (horizontal direction) and the Z-axis direction (vertical direction), but there is unevenness in the horizontal direction of the winding machine. Depending on the direction of the microphone, the concave part of the part may be hidden behind and the image may not be captured. Therefore, if the position of the microphone integrated with the camera is not fixed but moved in the X-axis direction (left-right direction), this problem can be solved. In the second embodiment, a method of gradually changing the direction (angle) of the microphone in the Z-axis direction (vertical direction) while gradually moving the position of the microphone in the X-axis direction (horizontal direction) will be described.

FIG. 1 is also used in this second embodiment.
FIG. 6 is a schematic view of a winding machine, a microphone that collects the sound, a camera that captures the sound, and a moving / rotating drive mechanism according to the second embodiment of the present invention. The camera 11 and the microphone 12 are integrally configured as shown in FIG. 6, and are connected to a moving / rotating drive mechanism that is installed near the hoisting machine 13 at a position where the traveling of the car is not hindered. Then, the camera 11 and the microphone 12 which are integrated by the movement rotation drive mechanism are connected to the X
It moves in the axial direction (horizontal direction) and rotates in the Z-axis direction (vertical direction).

The moving / rotating drive mechanism is a known moving mechanism such as a rack, a pinion, and a servomotor.
The central processing unit 4 of the remote maintenance device 1 sends a positive or negative drive signal (pulse signal) to the servo motor so that the positions of the camera 11 and the microphone 12 are within a range including the entire winding machine 13. It can move freely in the X-axis direction (left-right direction). In addition, the moving rotation drive mechanism incorporates another servo motor, and the remote maintenance device 1 is incorporated in this servo motor.
By sending a positive or negative drive signal from the central processing unit 4 of the above, the direction of the camera 11 and the microphone 12 is changed to the hoist 13
Can be freely changed in the Z-axis direction (vertical direction).

Next, the operation of the second embodiment will be described with reference to FIGS. In the remote maintenance device 1, the central processing unit 4 constantly switches the camera switch 2 and the microphone switch 3 to the car side, monitors the camera and the microphone in the car 7, and records them in the memory. When the memory is full of data, the central processing unit 4 controls the oldest data to be deleted each time new data is added. The monitoring data in the car 7 is read by the maintenance center 6 regularly or when necessary.

On the other hand, the central processing unit 4 switches the camera switch 2 and the microphone switch 3 to the camera interface side and the microphone interface side, respectively, at every predetermined time (periodically), and checks the state of the winding machine 13. ,
Check to see if there is any abnormal noise. In this case, the presence / absence of abnormal noise is determined by comparing with a preset value (threshold value). This threshold value is obtained by adding a predetermined offset value to the average value of the sound of the hoisting machine 13 obtained by measuring a plurality of times during the stable period excluding the initial failure period and the aged failure period as shown in FIG. To use. In addition,
What is used as the threshold value is not limited to this, and for example, the result of multiplying the average value of the sound of the winding machine 13 by a predetermined value (for example, 1.3) may be used.

The presence / absence of abnormal noise is determined as follows. As described above, the movement / rotation drive mechanism can freely change the positions and directions of the microphone 12 and the camera 11 within a range including the entire winding machine 13. The central processing unit 4 regularly instructs the moving and rotating drive mechanism to scan the position and direction of the microphone 12 in the entire range including the entire winding machine 13. That is, scanning is started from the initial position and angle of the position and direction of the microphone 12, for example, the leftmost position and the lowest direction within the movable range of the microphone 12, and the position of the microphone 12 is set in the X-axis direction (horizontal direction). Direction) to the right by a predetermined movement amount (denoted by Δr), and the microphone 12
When the position of exceeds the rightmost end of the above range, the position of the microphone 12 is returned to the leftmost position, the direction of the Z axis direction (vertical direction) is changed upward by a predetermined angle (Δφ), and the microphone is again moved. The microphone 12 is scanned up to the maximum position in the above range in the X axis direction and the maximum angle in the above range in the Z axis direction by repeatedly moving the position of 12 to the right by Δr in the X axis direction (horizontal direction). Let Then, the digitized sound of the winding machine 13 at each position and each direction obtained by this series of scanning is recorded in the memory.

Next, the sound recorded in the memory is read out,
Compare with the threshold value, check if there is anything exceeding the threshold value,
If there is something that exceeds the threshold, it is determined that an abnormality has occurred, the microphone 12 is moved to the position where the sound is loudest, and the microphone 12 is pointed in the direction where the sound is loudest, and the microphone 12 becomes integrated with the microphone 12. The camera 11 is driven. As a result, it is possible to take an image of the portion of the winding machine 13 that is most likely to have a failure. Then, the obtained image is digitized by the camera interface 15 and the sound is digitized by the microphone interface 16 and input to the central processing unit 4. The central processing unit 4 transmits the digitized image and sound together with the abnormality occurrence interrupt signal to the maintenance center 6 via the network control unit 5 and the telephone line. When the maintenance center 6 receives the abnormality occurrence interrupt signal, the maintenance center 6 outputs it to an alarm to call the operator's attention, restores the digitized image and sound, and outputs them to the screen and the speaker. This data is used for failure analysis and the like.

7 and 8 are flow charts showing the operation of the hoisting machine condition monitoring by the central processing unit 4. Next, the operation of monitoring the condition of the hoisting machine by the central processing unit 4 will be described with reference to FIGS. 7 and 8. First, in the remote maintenance device 1, the central processing unit 4 switches the camera switch 2 to the camera interface side and switches the microphone switch 3 to the microphone interface side (step S
701). Next, the central processing unit 4 sets initial values (for example, 0, 0) to the position in the X-axis direction and the angle in the Z-axis direction, and specifies the start address of the memory (step S).
702). Next, the central processing unit 4 sends the position in the X-axis direction and the angle in the Z-axis direction to the movement rotation drive mechanism via the microphone interface 16 (step S703). The movement rotation drive mechanism moves the microphone 12 according to the position in the X-axis direction, and directs the microphone 12 according to the angle in the Z-axis direction. Next, the microphone 12 collects sound at a portion of the hoisting machine 13 in the direction toward which the microphone 12 is directed, and sends the obtained sound volume to the central processing unit 4. The central processing unit 4 receives the sound, stores the loudness of the sound in the memory, and increments the memory address by one (step S704). The amplitude of the sound may be used as the loudness of the sound, or the power value may be used.

Next, the central processing unit 4 increases the position in the X-axis direction by Δr (step S705), and the position in the X-axis direction has a maximum value R (this maximum value R is determined at the stage of system design, It is checked whether or not the value has been set (set in advance) (step S706). If the position in the X-axis direction does not exceed the maximum value R, the process jumps to step S703. Step S7
At 06, when the position in the X-axis direction exceeds the maximum value R,
An initial value (for example, 0) is set to the position in the X-axis direction and the angle in the Z-axis direction is increased by Δφ (step S70
7). Next, the angle in the Z-axis direction has a maximum value Φ (this maximum value Φ
Is determined at the stage of system design and set in advance) is checked (step S708). Z
When the angle in the axial direction exceeds the maximum value Φ, the process jumps to step S709. If the angle in the Z-axis direction does not exceed the maximum value Φ, the process returns to step S703.

In step S709, the start address of the memory and the start address of the abnormal memory are designated. next,
The volume of the sound is retrieved from the memory (step S71
0), the loudness of this sound is compared with a threshold value (step S).
711). If the volume of the sound from the memory is louder,
After storing the loudness, position and angle of this sound in the memory for abnormality (step S712), the process jumps to step S713.
If the volume of the sound from the memory is smaller, step S
Fly to 713. In step S713, the memory address is incremented by 1 and the abnormal memory address is also incremented by 1, and then it is checked whether or not the memory address is the final one (step S
714). If the memory address is not the final one, step S
Return to 711. If the memory address is the final one, the one with the largest abnormal sound volume is obtained, and the position and angle thereof are sent to the moving / rotating drive mechanism (step S715).

The moving / rotating drive mechanism moves the microphone 12 and the camera 11 to the maximum position of the abnormal sound based on the position in the X-axis direction and the angle in the Z-axis direction designated by the central processing unit 4, and at the same time the abnormal sound is generated. The microphone 12 and the camera 11 are driven in the maximum direction. As a result, the microphone 12 and the camera 11 capture the sound and the image of the position of the winding machine having the largest abnormal sound and the portion in the direction of the largest abnormal sound, and send the image to the central processing unit 4. The central processing unit 4 receives sound and video from the microphone 12 and the camera 11, creates an interrupt signal, and sends it to the maintenance center 6 together with the sound and video (step S71).
6).

As described above, the position and direction of the microphone and the camera, which are arranged near the hoisting machine, are automatically driven periodically from the remote device to monitor the condition of the hoisting machine, and when an abnormality occurs, it is automatically monitored. Since an image and a sound are sent to the maintenance center and notified by an interrupt signal, the situation before and after the abnormality can be confirmed by the remote maintenance center even if the abnormality does not occur, even if the operator does not enter the hoistway.

Further, by integrating the microphone and the camera, it is possible to position and orient the position or direction of the camera to a portion where the abnormal sound of the hoisting machine is the largest by simply controlling the position and direction of only the microphone. Therefore, it is not necessary to control the position and direction of the camera, and the memory capacity can be reduced and the processing speed can be increased.

In addition, the maintenance center 6 issues a command to the remote maintenance device 1 at the time of maintenance and inspection or when it is desired to check the degree of wear of the consumable parts of the hoist. As a result, the central processing unit 4 causes the camera switch 2 and the microphone switch 3 to operate.
Are switched to the camera interface side and the microphone interface side, respectively, and the sound and the image of each part of the hoisting machine are taken toward the position and the angle of the microphone 12 and the camera 11 directed to the position and the angle instructed by the maintenance center 6. 15, sent to the central processing unit 4 via the microphone interface 16. Central processing unit 4
Upon receiving the digitalized sound and video from the microphone 12 and the camera 11, the virtual machine sends the sound and video to the maintenance center 6 via the network control device 5. When the maintenance center 6 receives the digitized sound and image from the central processing unit 4, the maintenance center 6 outputs the digitized sound and image to a speaker or a display device, which is useful for analyzing the presence / absence of an abnormal portion and the degree of consumption of consumables.

As described above, according to the instruction from the maintenance center, the position and direction of the microphone and the camera arranged near the hoisting machine are automatically driven to monitor the state of the hoisting machine, and the sound and image are transmitted to the maintenance center. Since the automatic maintenance inspection is carried out, the maintenance inspection can be performed while confirming the image and sound at the remote maintenance center during the normal operation or the high speed operation. Further, during normal operation or high-speed operation, it becomes possible to determine the optimum replacement time of the consumable parts of the hoisting machine at a remote maintenance center.

It should be noted that the remote device periodically drives the positions and orientations of a microphone and a camera arranged near the winding machine to monitor the state of the winding machine and record sound and images in a memory. The sound and video stored in the memory may be read from a remote maintenance center when necessary. Also in this case, the automatic maintenance and inspection can be performed at the remote maintenance center repeatedly during normal operation or high-speed operation while repeatedly confirming with the image and sound, and the maintenance inspection and the consumption level analysis of consumable parts can be performed.

Further, in the above example, the position of the microphone is scanned every time in the direction in which the X-axis increases (to the right). However, the invention is not limited to this, and if scanning to the right, then to the left. A zigzag method in which scanning is performed and then scanning is performed in the right direction may be adopted. In this case as well, not only the same effect as described above can be obtained but also the scanning time can be shortened.

In the above example, the X-axis direction is scanned first, and then the Z-axis direction is scanned. However, the present invention is not limited to this, and the Z-axis direction is scanned first. Next, scanning in the X-axis direction may be performed. Also in this case, the same effect as the above is obtained.

In the above example, the positions and orientations of the microphone and the camera are scanned in the X and Z axis directions, but the positions and orientations of the microphone and camera are also scanned in the Y and Z axis directions. Good. Also in this case, the same effect is obtained.

Further, in the above example, the positions and directions of the microphone and the camera are scanned only in the XZ plane.
The position and orientation of the microphone and the camera may be a combination of scanning in the XZ plane and scanning in the YZ plane. In this case, since it is possible to measure the position where the abnormal noise is most likely to occur from two positions and orientations independent of each other, the position and orientation of the camera are scanned only in the XZ plane. It is possible to specify the abnormal portion with higher accuracy than the above.

Third Embodiment In the second embodiment, a method has been described in which the direction of the microphone is gradually changed in the Z-axis direction (vertical direction) while the microphone is gradually moved in the X-axis direction (horizontal direction). In the third embodiment, while gradually moving the microphone in the Z-axis direction (vertical direction),
A method of gradually changing the direction of the microphone in the X-axis direction (horizontal direction) will be described.

FIG. 1 is also used in this third embodiment.
9 is a schematic view of a winding machine, a microphone that collects the sound, a camera that captures the sound, and a moving / rotating drive mechanism according to the third embodiment of the present invention. The camera 11 and the microphone 12 are integrally configured as shown in FIG. 9, and are connected to a moving rotation drive mechanism installed near the hoisting machine 13 at a position where the traveling of the car is not hindered. Then, the camera 11 and the microphone 12 which are integrated by this movement rotation drive mechanism are moved in the Z-axis direction (vertical direction) and are rotated in the X-axis direction (horizontal direction).

The moving / rotating drive mechanism incorporates a set of moving mechanisms such as a rack, a pinion and a servo motor according to a known technique, and a positive or negative drive signal (pulse) from the central processing unit 4 of the remote maintenance device 1 is incorporated in this servo motor. Signal) to move the positions of the camera 11 and the microphone 12 to the winding machine 13
Can be moved freely in the vertical direction within the range including the whole. Further, the moving / rotating drive mechanism has another built-in servo motor and the central processing unit 4 of the remote maintenance device 1 sends a positive or negative drive signal to the servo motor to cause the camera 11 to operate.
The direction of the microphone 12 can be freely changed in the left-right direction within a range including the entire winding machine 13.

Next, the operation of the third embodiment will be described with reference to FIGS. In the remote maintenance device 1, the central processing unit 4 constantly switches the camera switch 2 and the microphone switch 3 to the car side, monitors the camera and the microphone in the car 7, and records them in the memory. When the memory is full of data, the central processing unit 4 controls the oldest data to be deleted each time new data is added. The monitoring data in the car 7 is read by the maintenance center 6 regularly or when necessary.

On the other hand, the central processing unit 4 switches the camera switch 2 and the microphone switch 3 to the camera interface side and the microphone interface side, respectively, at every predetermined time (periodically) to check the state of the winding machine 13. ,
Check to see if there is any abnormal noise. In this case, the presence / absence of abnormal noise is determined by comparing with a preset value (threshold value). This threshold value is obtained by adding a predetermined offset value to the average value of the sound of the hoisting machine 13 obtained by measuring a plurality of times during the stable period excluding the initial failure period and the aged failure period as shown in FIG. To use. In addition,
What is used as the threshold value is not limited to this, and for example, the result of multiplying the average value of the sound of the winding machine 13 by a predetermined value (for example, 1.3) may be used.

The presence / absence of abnormal noise is determined as follows. As described above, the movement / rotation drive mechanism can freely change the positions and directions of the microphone 12 and the camera 11 within a range including the entire winding machine 13. The central processing unit 4 regularly instructs the moving and rotating drive mechanism to scan the position and direction of the microphone 12 in the entire range including the entire winding machine 13. That is, the position and the direction of the microphone 12 are set to the initial position and the angle, for example, the scanning is started from the lowest position and the leftmost direction within the movable range of the microphone 12, and the position of the microphone 12 is set in the Z-axis direction (vertical direction). Direction) by a predetermined amount of movement (denoted by Δr), and when the position of the microphone exceeds the uppermost end of the range, the position of the microphone 12 is returned to the lowest position, and the X-axis direction (left and right) is set. Direction) is changed rightward by a predetermined angle (Δφ), and the position of the microphone 12 is again moved upward in the Z-axis direction (vertical direction) by a predetermined movement amount (Δr). By repeating the above, the microphone 12 is scanned up to the maximum position in the range in the Z-axis direction and the maximum angle in the range in the X-axis direction. Then, the digitized sound of the winding machine 13 at each position and each direction obtained by this series of scanning is recorded in the memory.

Next, the sound recorded in the memory is read out,
Compare with the threshold value, check if there is anything exceeding the threshold value,
If there is something exceeding the threshold, it is determined that an abnormality has occurred, the microphone 12 is moved to the position where the sound is loudest, and the microphone 12 is directed to the direction where the sound is loudest.
The camera 11 integrated with is driven. As a result, it is possible to take an image of the portion of the winding machine 13 that is most likely to have a failure. Then, the obtained image is digitized by the camera interface 15 and the sound is digitized by the microphone interface 16 and input to the central processing unit 4. Central processing unit 4
Transmits the digitized image and sound together with the abnormality occurrence interrupt signal to the maintenance center 6 via the network control device 5 and the telephone line. Maintenance center 6
When receiving the abnormality occurrence interrupt signal, the alarm signal is output to an alarm to call the operator's attention, and the digitalized image and sound are restored and output to a screen, a speaker and the like. This data is used for failure analysis and the like.

10 and 11 are flow charts showing the operation of monitoring the condition of the hoisting machine by the central processing unit 4.
Next, the operation of monitoring the condition of the hoisting machine by the central processing unit 4 will be described with reference to FIGS. First, in the remote maintenance device 1, the central processing unit 4 switches the camera switch 2 to the camera interface side and the microphone switch 3 to the microphone interface side (step S1001). Next, the central processing unit 4 sets initial values (for example, 0, 0) to the position in the Z-axis direction and the angle in the X-axis direction, and specifies the start address of the memory (step S1002). Next, the central processing unit 4 determines the position in the Z-axis direction and the angle in the X-axis direction by the microphone interface 1.
Send to the moving rotation drive mechanism via 6 (step S100
3). The movement rotation drive mechanism moves the microphone 12 according to the position in the Z-axis direction, and moves the microphone 12 according to the angle in the X-axis direction.
Turn to. Next, the microphone 12 collects sound at a portion of the hoisting machine 13 in the direction toward which the microphone 12 is directed, and sends the obtained sound volume to the central processing unit 4. The central processing unit 4 receives the sound, stores the loudness of the sound in the memory, and increases the address of the memory by one (step S1004). The amplitude of the sound may be used as the loudness of the sound, or the power value may be used.

Next, the central processing unit 4 increases the position in the Z-axis direction by Δr (step S1005), and the position in the Z-axis direction has a maximum value R (this maximum value R is determined at the stage of system design, It is checked whether or not the value has been set (set in advance) (step S1006). If the position in the Z-axis direction does not exceed the maximum value R, the process jumps to step S1003. When the position in the Z-axis direction exceeds the maximum value R in step S1006, the initial value (for example, 0) is set in the position in the Z-axis direction and the angle in the X-axis direction is increased by Δφ (step S1007). Next, it is checked whether or not the angle in the X-axis direction exceeds a maximum value Φ (this maximum value Φ is determined at the stage of system design and set in advance) (step S10).
08). When the angle in the X-axis direction exceeds the maximum value Φ, the process jumps to step S1009. If the angle in the X-axis direction does not exceed the maximum value Φ, the process returns to step S1003.

In step S1009, the start address of the memory and the start address of the abnormal memory are designated. Next, the loudness of the sound is retrieved from the memory (step S10).
10) Then, the loudness of the sound is compared with the threshold value (step S1011). If the volume of the sound from the memory is louder, the volume, position, and angle of the sound are stored in the memory for abnormality (step S1012), and then step S1013.
Fly to. If the volume of the sound from the memory is smaller, the process jumps to step S1013. In step S1013, the memory address is incremented by 1 and the abnormal memory address is also incremented by 1.
After incrementing by one, it is checked whether the memory address is the last one (step S1014). If the memory address is not the final one, the process returns to step S1011. If the memory address is the final one, the one with the largest abnormal sound volume is obtained, and the position and angle thereof are sent to the moving and rotation drive mechanism (step S101).
5).

The moving rotation drive mechanism moves the microphone 12 and the camera 11 to the maximum position of the abnormal sound based on the position in the Z-axis direction and the angle in the X-axis direction designated by the central processing unit 4, and at the same time, outputs the abnormal sound. The microphone 12 and the camera 11 are driven in the maximum direction. As a result, the microphone 12 and the camera 11 capture the sound and the image of the position of the winding machine having the largest abnormal sound and the portion in the direction of the largest abnormal sound, and send the image to the central processing unit 4. The central processing unit 4 receives sound and video from the microphone 12 and the camera 11, creates an interrupt signal, and sends it to the maintenance center 6 together with the sound and video (step S101).
6).

As described above, the position and direction of the microphone and the camera, which are arranged near the hoisting machine, are automatically driven periodically from the remote device to monitor the state of the hoisting machine, and automatically when an abnormality occurs. Since an image and a sound are sent to the maintenance center and notified by an interrupt signal, the situation before and after the abnormality can be confirmed by the remote maintenance center even if the abnormality does not occur, even if the operator does not enter the hoistway.

Further, by integrating the microphone and the camera, it is possible to position and direct the position or direction of the camera to the portion where the abnormal sound of the hoisting machine is the largest, by only controlling the position and direction of the microphone. Therefore, the memory capacity can be reduced and the processing speed can be increased.

In addition, the maintenance center 6 issues a command to the remote maintenance device 1 at the time of maintenance and inspection, or when it is desired to check the degree of wear of the consumable parts of the hoist. As a result, the central processing unit 4 causes the camera switch 2 and the microphone switch 3 to operate.
Are switched to the camera interface side and the microphone interface side, respectively, and the positions and orientations of the microphone 12 and the camera 11 are directed to the position in the Z-axis direction and the angle in the X-axis direction instructed by the maintenance center 6 for each part of the hoisting machine. Camera interface 1 that captures sound and images
5, sent to the central processing unit 4 via the microphone interface 16. When the central processing unit 4 receives the digitized sound and image from the microphone 12 and the camera 11, the central processing unit 4 sends the sound and image to the maintenance center 6 via the network control unit 5. When the maintenance center 6 receives the digitized sound and image from the central processing unit 4, the maintenance center 6 outputs the digitized sound and image to a speaker or a display device, which is useful for analyzing the presence / absence of an abnormal portion and the degree of consumption of consumables.

As described above, according to the instruction from the maintenance center, the position and direction of the microphone and the camera arranged near the hoisting machine are automatically driven to monitor the state of the hoisting machine, and the sound and image are transmitted to the maintenance center. Since the automatic maintenance inspection is carried out, the maintenance inspection can be performed while confirming the image and sound at the remote maintenance center during the normal operation or the high speed operation. Further, during normal operation or high-speed operation, it becomes possible to determine the optimum replacement time of the consumable parts of the hoisting machine at a remote maintenance center.

The position and orientation of the microphone and the camera arranged near the hoisting machine are automatically driven by a remote device to monitor the state of the hoisting machine, and the sound and image are recorded in the memory. The sound and video stored in the memory may be read from a remote maintenance center when necessary. Also in this case, the automatic maintenance and inspection can be performed at the remote maintenance center repeatedly during normal operation or high-speed operation while repeatedly confirming with the image and sound, and the maintenance inspection and the consumption level analysis of consumable parts can be performed.

Further, in the above example, the position of the microphone is scanned every time in the direction in which the Z axis increases (upward), but the invention is not limited to this. A zigzag method in which scanning is performed and then scanning is performed in the next direction may be adopted. In this case as well, not only the same effect as described above can be obtained but also the scanning time can be shortened.

In the above example, the Z-axis direction is scanned first, and then the X-axis direction is scanned. However, the present invention is not limited to this, and the X-axis direction is scanned first. Next, scanning in the Z-axis direction may be performed. Also in this case, the same effect as the above is obtained.

Further, in the above example, the position and orientation of the microphone and the camera are scanned in the X and Z axis directions, but the position and orientation of the microphone and camera are also scanned in the Y and Z axis directions. Good. Also in this case, the same effect is obtained.

In the above example, the positions and orientations of the microphone and the camera are scanned only on the XZ plane, but the positions and orientations of the microphone and the camera are scanned on the XZ plane and YZ plane. You may combine. In this case, the position and orientation of the microphone and the camera can be set to X because the position where the abnormal sound is most likely to be generated can be measured from two positions and orientations independent of each other.
It is possible to take an image of an abnormal portion with higher accuracy than scanning with only the Z plane.

Fourth Embodiment In the first to third embodiments, the position of the microphone for the winding machine and the position of the camera are completely fixed or moved on a straight line, and then the direction thereof is set to a predetermined angle (slightly).
However, depending on the direction of the microphone, the concave portion of the winding machine may be hidden in the vertical direction and the horizontal direction of the winding machine, and a good image may not be captured. Therefore, the direction of the microphone is Y
This problem can be solved by fixing in the axial direction and moving the position in the X-axis direction (horizontal direction) and the Z-axis direction (vertical direction) by a predetermined amount (slightly).
In the second embodiment, a method will be described in which the position of the microphone is moved by a predetermined amount (slightly) in the X-axis direction (horizontal direction) and the Z-axis direction (vertical direction).

FIG. 1 is also used in the fourth embodiment.
FIG. 12 is a winding machine showing Embodiment 4 of the invention,
It is a general-view figure of the microphone which collects the sound, the camera which images, and a movement drive mechanism. The camera 11 and the microphone 12 are integrally configured as shown in FIG. 12, and are connected to a moving drive mechanism installed near the hoisting machine 13 at a position where the traveling of the car is not hindered. Then, the direction of the camera 11 and the microphone 12 integrated by this movement drive mechanism is fixed in the Y-axis direction, and the positions of the camera 11 and the microphone 12 are fixed in the X-axis direction (left-right direction) and the Z-axis direction (up-down direction). Move to.

The moving drive mechanism incorporates two sets of moving mechanisms based on known techniques such as a rack, a pinion, and a servomotor, and sends a positive or negative drive signal from the central processing unit 4 of the remote maintenance device 1 to this servomotor. Thus, the positions of the camera 11 and the microphone 12 can be freely moved in the horizontal direction and the vertical direction within the range including the entire winding machine 13.

Next, the operation of the fourth embodiment will be described with reference to FIGS. 1 and 9. In the remote maintenance device 1, the central processing unit 4 constantly switches the camera switch 2 and the microphone switch 3 to the car side, monitors the camera and the microphone in the car 7, and records them in the memory. When the memory is full of data, the central processing unit 4 controls the oldest data to be deleted each time new data is added. The monitoring data in the car 7 is read by the maintenance center 6 regularly or when necessary.

On the other hand, the central processing unit 4 switches the camera switch 2 and the microphone switch 3 to the camera interface side and the microphone interface side, respectively, at every predetermined time (periodically) to check the state of the winding machine 13. ,
Check to see if there is any abnormal noise. In this case, the presence / absence of abnormal noise is determined by comparing with a preset value (threshold value). This threshold value is obtained by adding a predetermined offset value to the average value of the sound of the hoisting machine 13 obtained by measuring a plurality of times during the stable period excluding the initial failure period and the aged failure period as shown in FIG. To use. In addition,
What is used as the threshold value is not limited to this, and for example, the result of multiplying the average value of the sound of the winding machine 13 by a predetermined value (for example, 1.3) may be used.

The presence / absence of abnormal noise is determined as follows. The movement drive mechanism can freely change the positions of the microphone 12 and the camera 11 within the range including the entire hoisting machine 13, as described above. The central processing unit 4 periodically instructs the transfer driving mechanism to scan the entire range of the winding machine 13 for the position of the microphone 12. That is, scanning is started from the initial position of the microphone 12, for example, the leftmost and lowermost position within the movable range of the microphone 12, and the position of the microphone 12 is moved in the X-axis direction (horizontal direction) by a predetermined amount. When the position of the microphone 12 exceeds the rightmost end of the range, the position of the microphone 12 is returned to the leftmost position, and the position of the microphone is set in the Z-axis direction (denoted by Δr). A predetermined amount of movement (Δs
The position of the microphone 12 is moved to the X direction by repeatedly moving the position of the microphone 12 to the right by Δr in the X-axis direction (horizontal direction) again.
Move to the maximum position within the above range in both the axial and Z-axis directions. Then, the digitized sound of the winding machine 13 at each position obtained by this series of scanning is recorded in the memory.

Next, the sound recorded in the memory is read out,
Compare with the threshold value, check if there is anything exceeding the threshold value,
If there is something exceeding the threshold value, it is determined that an abnormality has occurred, the microphone 12 is moved to the position where the sound is loudest, and the camera 11 integrated with the microphone 12 is driven. As a result, it is possible to take an image of the portion of the winding machine 13 that is most likely to have a failure. Then, the obtained image is digitized by the camera interface 15 and the sound is digitized by the microphone interface 16 and input to the central processing unit 4. The central processing unit 4 transmits the digitized image and sound together with the abnormality occurrence interrupt signal to the maintenance center 6 via the network control unit 5 and the telephone line. When the maintenance center 6 receives the abnormality occurrence interrupt signal, the maintenance center 6 outputs it to an alarm to call the operator's attention, restores the digitized image and sound, and outputs them to the screen and the speaker. This data is used for failure analysis and the like.

13 and 14 are flowcharts showing the operation of the hoisting machine state monitoring by the central processing unit 4.
Next, the operation of monitoring the condition of the hoisting machine by the central processing unit 4 will be described with reference to FIGS. 13 and 14. First, in the remote maintenance device 1, the central processing unit 4 switches the camera switch 2 to the camera interface side and the microphone switch 3 to the microphone interface side (step S1301). Next, the central processing unit 4 sets an initial value (for example, 0, 0) to the position in the X-axis direction and the Z-axis direction and specifies the head address of the memory (step S1302). Next, the central processing unit 4 sends the position in the X-axis direction and the position in the Z-axis direction to the movement drive mechanism via the microphone interface 16 (step S1303). The movement drive mechanism moves the microphone 12 according to the position in the X-axis direction.
Next, the microphone 12 collects sound in the Y-axis direction portion of the winding machine 13 to which the microphone 12 is directed, and sends the obtained sound volume to the central processing unit 4. The central processing unit 4 receives the sound, stores the loudness of the sound in the memory, and increases the address of the memory by one (step S1304). The amplitude of the sound may be used as the loudness of the sound, or the power value may be used.

Next, the central processing unit 4 increases the position in the X-axis direction by Δr (step S1305), and the position in the X-axis direction has a maximum value R (this maximum value R is determined at the stage of system design, It is checked whether or not the value has been set (set in advance) (step S1306). If the position in the X-axis direction does not exceed the maximum value R, the process jumps to step S1303. When the position in the X-axis direction exceeds the maximum value R in step S1306, an initial value (for example, 0) is set in the position in the Z-axis direction and the position in the Z-axis direction is increased by Δs (step S1307). Next, it is checked whether or not the position in the Z-axis direction exceeds the maximum value S (this maximum value S is determined at the stage of system design and set in advance) (step S13).
08). When the position in the Z-axis direction exceeds the maximum value S, the process jumps to step S1309. If the position in the Z-axis direction does not exceed the maximum value S, the process jumps to step S1303.

In step S1309, the start address of the memory and the start address of the abnormal memory are designated. Next, the loudness of the sound is retrieved from the memory (step S13
10) Then, the loudness of the sound is compared with the threshold value (step S1311). If the volume of the sound from the memory is louder, the volume and position of the sound are stored in the memory for abnormality (step S1012), and the process jumps to step S1313. If the volume of the sound from the memory is smaller, the process jumps to step S1313. In step S1313, the memory address is increased by one and the abnormality memory address is also increased by one, and then it is checked whether or not the memory address is the last one (step S1314). If the memory address is not the final one, the process jumps to step S1311. If the memory address is the final one, the one with the largest abnormal sound volume is obtained, and the position and angle thereof are sent to the movement drive mechanism (step S1315).

The movement drive mechanism operates on the basis of the positions in the X-axis direction and Z-axis direction designated by the central processing unit 4.
After moving the axially oriented microphone 12 and the camera 11 to the maximum position of the abnormal sound, the microphone 12 and the camera 11 are moved.
To drive. As a result, the microphone 12 and the camera 11 capture the sound and the image of the portion of the winding machine with the largest abnormal sound, and send this image to the central processing unit 4. The central processing unit 4 receives the sound and the image from the microphone 12 and the camera 11, creates an interrupt signal, and sends it to the maintenance center 6 together with the sound and the image (step S1016).

As described above, the position of the microphone and the camera, which are arranged near the hoisting machine, are automatically driven from the remote device to monitor the condition of the hoisting machine, and when an abnormality occurs, the maintenance center is automatically operated. Since an image and sound are sent to and notified by an interrupt signal, the situation before and after the abnormality can be confirmed by a remote maintenance center even if the abnormality does not occur, even if the operator does not enter the hoistway.

Further, since the microphone and the camera are integrated, the position of the camera can be accurately positioned at the portion where the abnormal sound of the hoisting machine is maximum by simply controlling the position of only the microphone. The capacity can be reduced and the processing speed can be increased.

Further, the maintenance center 6 issues a command to the remote maintenance device 1 at the time of maintenance and inspection, or when it is desired to check the degree of wear of the consumable parts of the hoist. As a result, the central processing unit 4 causes the camera switch 2 and the microphone switch 3 to operate.
Are switched to the camera interface side and the microphone interface side respectively, and the sounds and images of the respective parts of the hoist are taken toward the positions instructed by the maintenance center 6 so that the positions of the microphone 12 and the camera 11 are captured. It is sent to the central processing unit 4 via 16. When the central processing unit 4 receives the digitized sound and image from the microphone 12 and the camera 11, the central processing unit 4 sends the sound and image to the maintenance center 6 via the network control unit 5. When the maintenance center 6 receives the digitized sound and image from the central processing unit 4,
This is output to a speaker or display device, and whether there is an abnormal part,
Useful for analyzing the degree of wear of consumables.

As described above, according to the instruction from the maintenance center, the positions of the microphone and the camera arranged near the hoisting machine are automatically driven to monitor the state of the hoisting machine so that the maintenance center can capture the sound and the image. Since the automatic maintenance inspection is performed during normal operation or high-speed operation, it is possible to perform the maintenance inspection while confirming the image and sound at the remote maintenance center. Further, during normal operation or high-speed operation, it becomes possible to determine the optimum replacement time of the consumable parts of the hoisting machine at a remote maintenance center.

It should be noted that the position of the microphone and the camera arranged near the hoisting machine are automatically driven by the remote device periodically to monitor the condition of the hoisting machine, and the sound and image are recorded in the memory. The sound and video stored in the memory may be read from the maintenance center when necessary. Also in this case, the automatic maintenance and inspection can be performed at the remote maintenance center repeatedly during normal operation or high-speed operation while repeatedly confirming with the image and sound, and the maintenance inspection and the consumption level analysis of consumable parts can be performed.

In the above example, the position of the microphone is scanned every time in the direction in which the X axis increases (to the right). However, the present invention is not limited to this, and if scanning to the right, then to the left. A zigzag method in which scanning is performed and then scanning is performed in the right direction may be adopted. In this case as well, not only the same effect as described above can be obtained but also the scanning time can be shortened.

In the above example, the X-axis direction is scanned first, and then the Z-axis direction is scanned. However, the present invention is not limited to this, and the Z-axis direction is scanned first. Next, scanning in the X-axis direction may be performed. Also in this case, the same effect as the above is obtained.

In the above example, the positions of the microphone and the camera are scanned in the X-axis direction and the Z-axis direction.
The positions of the microphone and the camera may be scanned in the Y axis direction and the Z axis direction. Also in this case, the same effect is obtained.

In the above example, the positions of the microphone and the camera are scanned only on the XZ plane, but the positions of the microphone and the camera may be combined with the scanning on the XZ plane and the scanning on the YZ plane. . In this case, since it is possible to measure the position where the abnormal sound is most likely generated from two independent camera positions, it is more accurate than scanning the microphone and camera positions only in the XZ plane. You can take a picture of the abnormal part.

Embodiment 5. In Embodiments 1 to 4, one set of integrated microphone and camera for winding machine observation is provided, but this does not give a sense of distance, and thus only two-dimensional handling is possible. If the three-dimensional processing can be performed, the accuracy of identifying the failed portion is further improved. In the fifth embodiment, in order to enable the three-dimensional processing, a car and two sets of integrated winder observation microphones and cameras as shown in FIG. Fixed to a stand that is installed in a position that does not interfere. This mount is
As in the first embodiment, the rotary drive mechanism rotates the motor in the left-right direction and the vertical direction. Note that FIG. 1 is also used in this fifth embodiment.

Next, the operation of the fifth embodiment will be described. Two
The operation of each set of the integrated microphone and camera is the same as that of the first embodiment, and thus detailed description of the operation is omitted.
The outline of the operation is as follows. The central processing unit 4 slightly changes the angle of one of the microphones in the left-right direction and the up-down direction to record the sound of the hoisting machine in all directions, and stores it in the memory. Next, the central processing unit 4 compares the sound of the hoisting machine read from the memory with a threshold value, determines that the sound is abnormal when the sound is larger than the threshold value, identifies the direction of the loudest sound, and detects the direction of the microphone and microphone in that direction. Point the camera and record video and audio information. Next, the central processing unit 4 does the same for the other microphone. Next, the central processing unit 4 sends the two sets of image information and sound information obtained in to the maintenance center 6 together with the interrupt signal. The maintenance center 6 processes this and displays it three-dimensionally on the screen, which is useful for analyzing an abnormality.

As described above, by providing the two sets of the microphone and the camera for observing the winding machine, the analysis can be performed by the three-dimensional image, so that the analysis becomes easier.

Sixth Embodiment In the first embodiment, the directions of the integrated winder observation microphone and the camera are changed little by little, but in the sixth embodiment, the directions of the microphone and the camera are changed in units of a certain block. . For example, the angle is changed in units of blocks in such a range that the individual components that make up the hoisting machine can be specified. Then, if there is a block whose sound volume exceeds the threshold value, it is judged to be abnormal, and if the block with the largest abnormal sound volume is specified, the maximum direction of the abnormal sound is found within the range of this block, and this direction is detected. Point the microphone and camera at.

Next, the operation of the sixth embodiment will be described. Differences from the first embodiment will be described. 1 and 2 are also used in this embodiment. That is, the configuration is the same as that of the first embodiment.

Next, the operation of the sixth embodiment will be described with reference to FIGS. In the remote maintenance device 1, the central processing unit 4 constantly switches the camera switch 2 and the microphone switch 3 to the car side, monitors the camera and the microphone in the car 7, and records them in the memory. When the memory is full of data, the central processing unit 4 controls the oldest data to be deleted each time new data is added. The monitoring data in the car 7 is read by the maintenance center 6 regularly or when necessary. On the other hand, the central processing unit 4 switches the camera switch 2 and the microphone switch 3 to the camera interface side and the microphone interface side, respectively, at every predetermined time (periodically), checks the state of the hoisting machine 13, and detects abnormal noise. Check whether is not occurred. In this case, the presence / absence of abnormal noise is determined by comparing with a preset value (threshold value). This threshold value is obtained by adding a predetermined offset value to the average value of the sound of the hoisting machine 13 obtained by measuring a plurality of times during the stable period excluding the initial failure period and the aged failure period as shown in FIG. To use. In addition, what is used as the threshold value is not limited to this, and for example, the result of multiplying the average value of the sound of the winding machine 13 by a predetermined value (for example, 1.3) may be used.

The presence / absence of abnormal noise is determined as follows. As described above, the rotation drive mechanism can freely change the directions of the microphone 12 and the camera 11 within the range including the entire hoisting machine 13. The central processing unit 4 periodically orients the direction of the microphone 12 with respect to the rotary drive mechanism within a total range including the entire hoisting machine 13 (this representative point is obtained by dividing the entire range at equal intervals). To scan one or more resulting points). That is, the direction of the microphone 12 starts from an initial angle, for example, the lowest and leftmost direction within the movable range of the microphone 12, and n times the predetermined angle (Δθ) in the X-axis direction (horizontal direction). (N is a predetermined integer) is changed rightward, and when the angle exceeds the rightmost end of the above range, the horizontal angle is returned to the leftmost direction, and the Z-axis direction (vertical direction) is set to a predetermined direction. By changing the angle (Δφ) by m times (m is a predetermined integer) upward and again by changing the angle to the right by n times Δθ in the X-axis direction (horizontal direction). X microphone 12
Scanning is performed up to the maximum angle in the above range in both the axial direction and the Z axis direction. Then, the digitized sound of the winding machine 13 in each direction obtained by the series of scanning is recorded in the memory.

Next, the sound recorded in the memory is read out,
Compare with the threshold value, check if there is anything exceeding the threshold value,
If there is something exceeding the threshold value, it is judged that an abnormality has occurred, and the direction of the largest sound is Δjnθ and Δkmφ (j,
If k is a natural number, then the direction of the microphone 12 is Δ (j−1) nθ to Δ (j + 1) n in the X-axis direction (horizontal direction).
Δ (k-1) mφ in the range of θ and in the Z-axis direction (vertical direction)
It is changed more finely in the range of blocks of Δ (k + 1) mφ. That is, the direction of the microphone 12 is set to the initial value (Δ (j-
1) nθ, Δ (k-1) mφ), and changes in the X-axis direction (horizontal direction) to the right by Δθ in the range of Δ (j-1) nθ to Δ (j + 1) nθ. Δ (j + 1)
When nθ is exceeded, the horizontal angle is again changed to Δ (j-1) nθ.
Direction, the Z-axis direction (vertical direction) is changed in the upward direction by Δφ, and the X-axis direction (horizontal direction) is changed in the right direction by Δθ. Is scanned up to the maximum angle (Δ (j + 1) nθ, Δ (k + 1) mφ) in the above range in both the X-axis direction and the Z-axis direction. Then, the digitized abnormal sound of the winding machine 13 in each direction obtained by the series of scanning is recorded in another memory.

Next, the abnormal sound recorded in the other memory is read out, the microphone 12 is directed in the direction of the maximum abnormal sound, and the camera 11 integrated with the microphone 12 is driven.
As a result, it is possible to take an image of the portion of the winding machine 13 that is most likely to have a failure. And the obtained image is the camera interface 1
5 digitized, the sound is microphone interface 16
It is digitized by and input to the central processing unit 4. The central processing unit 4 transmits the digitized image and sound together with the abnormality occurrence interrupt signal to the maintenance center 6 via the network control unit 5 and the telephone line. When the maintenance center 6 receives the abnormality occurrence interrupt signal,
Output to an alarm to alert the operator and
It restores the digitized video and sound and outputs them to the screen and speakers. This data is used for failure analysis and the like.

16 to 19 are flowcharts showing the operation of the hoisting machine state monitoring by the central processing unit 4. Next, the operation of monitoring the condition of the hoisting machine by the central processing unit 4 will be described with reference to FIGS. First, the remote maintenance device 1
In, the central processing unit 4 switches the camera switch 2 to the camera interface side and switches the microphone switch 3 to the microphone interface side (step S1601). Next, the central processing unit 4 sets initial values (for example, 0, 0) to the angles in the X and Z axis directions, and specifies the start address of the first memory 14 (step S).
1602). Next, the central processing unit 4 sends the angles in the X and Z axis directions to the rotary drive mechanism via the microphone interface 16 (step S1603). The rotation drive mechanism is this X,
Aim the microphone 12 according to the value in the Z-axis direction. Next, the microphone 12 collects sound at a portion of the winding machine 13 in the direction toward which the microphone 12 is directed, and sends the obtained sound volume to the central processing unit 4. The central processing unit 4 receives the sound, stores the loudness of the sound in the memory, and increments the address of the first memory by one (step S1604). The amplitude of the sound may be used as the loudness of the sound, or the power value may be used.

Next, the central processing unit 4 increases the angle in the X-axis direction by Δnθ (n times Δθ) (step S160).
5) It is checked whether or not the angle in the X-axis direction exceeds the maximum value Θ (this maximum value Θ is determined at the stage of system design and set in advance) (step S1606). If the angle in the X-axis direction does not exceed the maximum value Θ, step S160
Return to 3. If the angle in the X-axis direction exceeds the maximum value Θ in step S1606, an initial value (for example, 0) is set in the angle in the X-axis direction, and the angle in the Z-axis direction is set to Δmφ.
It is increased by (m times Δmφ) (step S1607).
Next, it is checked whether or not the angle in the Z-axis direction exceeds a maximum value Φ (this maximum value Φ is determined at the stage of system design and set in advance) (step S1608). When the angle in the Z-axis direction exceeds the maximum value Φ, the process jumps to step S1609. If the angle in the Z-axis direction does not exceed the maximum value Φ, the process returns to step S1603.

In step S1609, the start address of the first memory and the start address of the first abnormality memory are designated. Next, the sound is retrieved from the first memory (step S1610), and the loudness of this sound and the threshold value are compared (step S1611). If the volume of the sound from the memory is louder, the volume and angle of the sound are stored in the first abnormality memory (step S1612), and then step S16.
Fly to 13. If the volume of the sound from the memory is smaller, the process jumps to step S1613. In step S1613, the first memory address is incremented by one and the first abnormality memory address is also incremented by one, and then it is checked whether or not the first memory address is the final one (step S1614). If the memory address is not the final one, the process returns to step S1611. If the first memory address is the final address, the abnormal sound is extracted from the first abnormal memory and the maximum abnormal sound is obtained (step S1615).

Next, the central processing unit 4 sets initial values (Δ (j-1) nθ, Δ (k-1) mφ) for the angles in the X and Z axis directions.
Is set and the start address of the second memory is designated (step S1616). Next, the central processing unit 4
Sends the angle in the X and Z axis directions to the rotary drive mechanism via the microphone interface 16 (step S1617). The rotary drive mechanism points the microphone 12 according to the values in the X and Z axis directions. Next, the microphone 12 collects sound at a portion of the winding machine 13 in the direction toward which the microphone 12 is directed, and sends the obtained sound volume to the central processing unit 4. The central processing unit 4 receives the sound, stores the loudness of the sound in the second memory, and increments the address of the second memory by one (step S1618). The amplitude of the sound may be used as the loudness of the sound, or the power value may be used.

Next, the central processing unit 4 increases the angle in the X-axis direction by Δθ (step S1619), and checks whether the angle in the X-axis direction exceeds Δ (j + 1) nθ (step S1620). The angle in the X-axis direction is Δ (j + 1) nθ
If not exceeded, the process returns to step S1617. In step S1620, the angle in the X-axis direction is Δ (j + 1) n.
If θ is exceeded, the initial value Δ (j-1) n is set for the angle in the X-axis direction.
While θ is set, the angle in the Z-axis direction is increased by Δφ (step S1621). Next, the angle in the Z-axis direction is Δ
It is checked whether or not (k + 1) mφ is exceeded (step S1).
622). When the angle in the Z-axis direction exceeds the maximum value Φ, the process jumps to step S1623. If the angle in the Z-axis direction does not exceed the maximum value Φ, the process returns to step S1617.

In step S1623, the largest abnormal sound is obtained from the second memory and the angle is sent to the rotary drive mechanism.

The rotary drive mechanism directs the microphone 12 and the camera 11 toward the maximum direction of the abnormal sound based on the angles in the X and Z axis directions designated by the central processing unit 4.
And driving the camera 11. As a result, the microphone 12 and the camera 1 capture the sound and the image of the part in the direction in which the abnormal sound of the winding machine is the largest, and the image is captured by the central processing unit 4.
Send to. The central processing unit 4 includes a microphone 12 and a camera 11.
The sound and the image are received from, the interrupt signal is created, and the interrupt signal is sent to the maintenance center 6 together with the sound and the image (step S1624).

In this way, the direction of the microphone and camera arranged near the hoisting machine from the remote unit is first automatically driven in block units to monitor the state of the hoisting machine. Since the direction of the abnormality is specified by automatically driving the directions of the microphone and the camera in smaller units, the processing for specifying the abnormal portion is less than in the first to fifth embodiments, and the speed can be increased. it can.

Further, since the microphone and the camera, which are arranged near the hoisting machine, are automatically sent from the remote device to the maintenance center and the image and the sound are sent and notified by the interrupt signal, the hoistway can be operated when an abnormality occurs. You can check the situation before and after the abnormality at a remote maintenance center without going into the room.

Further, since the microphone and the camera are integrated, the position or direction of the camera can be directed to the portion where the abnormal sound of the hoisting machine is the maximum by only controlling the direction of the microphone. The capacity can be reduced and the processing speed can be increased.

In addition, the maintenance center 6 issues a command to the remote maintenance device 1 at the time of maintenance and inspection or when it is desired to check the degree of wear of the consumable parts of the hoist. As a result, the central processing unit 4 causes the camera switch 2 and the microphone switch 3 to operate.
Are switched to the camera interface side and the microphone interface side, respectively, and the sounds and images of the respective parts of the hoisting machine are taken in with the directions of the microphone 12 and the camera 11 directed at the angles instructed by the maintenance center 6. It is sent to the central processing unit 4 via 16. When the central processing unit 4 receives the digitized sound and image from the microphone 12 and the camera 11, the central processing unit 4 sends the sound and image to the maintenance center 6 via the network control unit 5. When the maintenance center 6 receives the digitized sound and image from the central processing unit 4,
This is output to a speaker or display device, and whether there is an abnormal part,
Useful for analyzing the degree of wear of consumables.

As described above, the microphone and the camera arranged near the hoisting machine are automatically driven by the command from the maintenance center to monitor the condition of the hoisting machine, and the sound and image are taken in by the maintenance center. Therefore, during normal operation or high-speed operation, the automatic maintenance inspection can be performed at the remote maintenance center while checking the image and sound. Further, during normal operation or high-speed operation, it becomes possible to determine the optimum replacement time of the consumable parts of the hoisting machine at a remote maintenance center.

A remote device periodically drives a microphone and a camera arranged near the hoist to monitor the condition of the hoist and records sound and images in a memory. The sound and video stored in the memory may be read out when necessary. Also in this case, the automatic maintenance and inspection can be performed at the remote maintenance center repeatedly during normal operation or high-speed operation while repeatedly confirming with the image and sound, and the maintenance inspection and the consumption level analysis of consumable parts can be performed.

Further, in the above example, the direction of the microphone is scanned in the direction in which the X axis increases every time (right direction). However, the present invention is not limited to this. A zigzag method may be adopted in which scanning is performed and then scanning is further performed in the right direction. In this case as well, not only the same effect as described above can be obtained but also the scanning time can be shortened.

In the above example, the X-axis direction is scanned first, and then the Z-axis direction is scanned. However, the present invention is not limited to this, and the Z-axis direction is scanned first. Next, scanning in the X-axis direction may be performed. Also in this case, the same effect as the above is obtained.

In the above example, the microphone and camera are scanned in the X and Z axis directions, but the microphone and camera may be scanned in the Y and Z axis directions.
Also in this case, the same effect is obtained.

In the above example, the microphone and the camera are scanned only in the X and Z axis directions, but the microphone and the camera are scanned in the X and Z axis directions and the Y and Z directions.
The scanning in the axial direction may be combined. In this case, the direction of the camera can be directed from the two directions independent of each other to the part where the abnormal sound is most likely to occur, so that the direction of the microphone and the camera can be set to the X and Z axis directions only. Even more accurately, you can take a picture of the abnormal part.

The method of scanning in block units and the detailed scanning in abnormal blocks according to the sixth embodiment can be applied to the first to fifth embodiments.

Seventh Embodiment In the first to sixth embodiments described above, it is assumed that the lighting device is always on, but the rotary drive mechanism, the movement drive mechanism, and the movement rotation drive mechanism (collectively referred to as a drive mechanism) are turned on for the lighting device.
A / OFF control unit may be added to control the illumination device to be turned on only when driving the camera. As a result, useless power consumption can be prevented, and power consumption can be saved.

The microphone and the camera may be integrated with the lighting device. As a result, the movement of the microphone or the camera does not interfere with the movement of the camera, and since the illumination is performed from the vicinity of the winding machine, the power for illumination can be further reduced.

Further, in the above example, the occurrence of abnormality and the degree of wear are determined by the loudness of the sound, but the present invention is not limited to sound, and the presence or absence of abnormality can be determined by heat, for example. The processing content is the same as in the first to sixth embodiments if the sound is changed to heat and the microphone is changed to a heat sensitive device such as an infrared camera, and the effect is also the same.

Further, since the infrared camera can not only detect the heat of the defective portion but also can capture the image in the darkness, the illumination device can be omitted.

Further, the presence or absence of abnormality can be determined not only by sound but also by vibration, for example. The processing form is the same as in Embodiments 1 to 6 if the sound is changed to vibration and the microphone is changed to a vibration sensor such as an air pressure sensor, and the effect is also the same.

[0136]

According to the present invention, the position or direction of the microphone and the camera, which are arranged near the hoisting machine, are automatically driven from a remote device at regular intervals to monitor the condition of the hoisting machine and to detect the occurrence of an abnormality. Automatically sends video and sound to the maintenance center to notify it by an interrupt signal, so if an abnormality occurs, the situation before and after the abnormality can be confirmed by a remote maintenance center without entering the hoistway.

By integrating the microphone and the camera, it is possible to control only the position or direction of the microphone.
Since the position or direction of the camera can be positioned or directed to a portion of the winding machine where the abnormal noise is maximum, the memory capacity can be reduced and the processing speed can be increased.

Further, in response to a command from the maintenance center, the position or orientation of the microphone and the camera arranged near the hoisting machine are automatically driven to monitor the state of the hoisting machine so that the maintenance center captures sound and images. As a result, the automatic maintenance inspection can be performed while checking the video and sound at the remote maintenance center during normal operation or high-speed operation, and hoisting at the remote maintenance center during normal operation or high-speed operation. It is also possible to determine the optimum replacement time for the consumable parts of the machine part.

Further, the position or orientation of the microphone and the camera arranged near the hoisting machine are automatically driven by the remote device to monitor the state of the hoisting machine and record the sound and image in the memory. The above sound and video stored in the memory are read from the remote maintenance center when needed, so automatic maintenance inspection can be performed by checking the video and sound repeatedly at the remote maintenance center during normal operation or high-speed operation. It is possible to perform inspections and wear level analysis of consumable parts.

Since the zigzag system is adopted in which the position or direction of the microphone is scanned to the right, then to the left, and then to the right, the zigzag system is repeated. Can be planned.

Further, since the zigzag system is adopted in which after scanning the position or direction of the microphone in the upward direction, the scanning is performed in the downward direction and then in the upward direction, the scanning time is shortened. Can be planned.

Since the scanning of the microphone and the camera in the XZ plane and the scanning of the YZ plane are combined, the orientation of the microphone and the camera is more accurate than the scanning of the microphone and the camera only in the XZ plane. It is possible to identify the abnormal part.

Further, by providing the two sets of the microphone and the camera for observing the winding machine which are integrated with each other, the analysis can be performed by the three-dimensional image, so that the analysis becomes easier.

Further, the position or orientation of the microphone and the camera arranged near the hoisting machine are first automatically driven in block units from the remote device to monitor the state of the hoisting machine. Since the position or direction of the microphone and the camera is automatically driven in a finer unit to specify the direction of the abnormality, the process for specifying the location of the abnormality is small, and the speed can be increased.

Further, when the loudness of the sound received from the microphone is larger than the threshold value determined based on the average value of the generated sound when the failure rate of the winding machine is in the stable period, it is determined to be abnormal. Therefore, the presence / absence of abnormality can be determined with high accuracy.

Further, the drive mechanism is turned on / off for the lighting device.
Since a control unit is added and the lighting device is controlled to be turned on only when the camera is driven, it is possible to prevent wasteful use of electric power.

Further, since the microphone and the camera are integrated with the lighting device, the movement of the microphone and the camera does not interfere with the movement or rotation of the camera, and the lighting is performed from the vicinity of the winding machine, so that power saving can be achieved. it can.

Further, since the microphone is replaced with a heat sensitive device capable of judging whether or not there is an abnormality even with heat, if a abnormality occurs, it is possible to check the situation before and after the abnormality with a remote maintenance center without entering the hoistway. You can

Further, by using an infrared camera as the heat-sensitive device, not only the heat of the defective portion can be sensed but also an image can be captured in the dark, so that the illumination device can be omitted.

Further, since the microphone is replaced with a vibration sensor capable of determining whether or not there is an abnormality even when vibrating, the situation before and after the abnormality can be confirmed by a remote maintenance center even if the abnormality does not occur and the operator does not enter the hoistway. it can.

[Brief description of drawings]

FIG. 1 is a block diagram of an elevator remote device showing first to sixth embodiments of the present invention.

FIG. 2 is a schematic view of a winding machine, a microphone that collects the sound, a camera that captures the sound, and a rotation drive mechanism according to the first and sixth embodiments.

FIG. 3 is an explanatory diagram showing a change situation of a failure rate of a hoisting machine according to a period.

FIG. 4 is a flowchart showing an operation of monitoring the state of the hoisting machine by the central processing unit 4 according to the first embodiment.

FIG. 5 is a flowchart showing an operation of hoist state monitoring by the central processing unit 4 according to the first embodiment (continued).

FIG. 6 is a winding machine showing Embodiment 2 of the present invention,
It is a general-view figure of the microphone which collects the sound, the camera which images, and a moving rotation drive mechanism.

FIG. 7 is a flowchart showing an operation of hoisting machine status monitoring by the central processing unit 4 according to the second embodiment.

FIG. 8 is a flowchart showing an operation of monitoring the state of the hoisting machine by the central processing unit 4 according to the second embodiment (continued).

FIG. 9 is a winding machine showing Embodiment 3 of the invention,
It is a general-view figure of the microphone which collects the sound, the camera which images, and a movement rotation drive mechanism.

FIG. 10 is a flowchart showing an operation of monitoring the state of the hoisting machine by the central processing unit 4 according to the third embodiment.

FIG. 11 is a flowchart showing the operation of the winding machine state monitoring by the central processing unit 4 according to the third embodiment (continued).

FIG. 12 is a schematic view of a hoisting machine, a microphone that collects sound from the hoisting machine, a camera that captures a sound, and a moving drive mechanism according to a fourth embodiment of the present invention.

FIG. 13 is a flowchart showing an operation of monitoring the state of the hoisting machine by the central processing unit 4 according to the fourth embodiment.

FIG. 14 is a flowchart showing an operation of monitoring the state of the hoisting machine by the central processing unit 4 according to the fourth embodiment (continued).

FIG. 15 is a schematic view of a winding machine, a microphone that collects sound from the winding machine, a camera that captures a sound, and a movement drive mechanism according to a fifth embodiment of the present invention.

FIG. 16 is a flowchart showing an operation of hoist state monitoring by the central processing unit 4 according to the sixth embodiment.

FIG. 17 is a flowchart showing the operation of the winding machine state monitoring by the central processing unit 4 according to the sixth embodiment (continued).

FIG. 18 is a flowchart showing the operation of hoist state monitoring by the central processing unit 4 according to the sixth embodiment (continued).

FIG. 19 is a flowchart showing an operation of hoist state monitoring by the central processing unit 4 according to the sixth embodiment (continued).

[Explanation of symbols]

1 remote maintenance device, 2 camera switch, 3 microphone switch, 4 central processing unit, 5 network control device, 6 maintenance center, 7 basket, 8 monitoring camera, 9 monitoring microphone, 10 hoistway, 11 camera, 12 microphone,
13 hoist, 14 memory, 15 camera interface, 16 microphone interface

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3F303 BA01 CB42 DB11 DB21 DC34                       EA02 EA03 EA04 EA09 FA12                 3F304 BA06 BA13 CA11 EA29 ED13                       ED16                 3F306 AA02 AA11 BA00

Claims (15)

[Claims] 1. A camera for collecting an image of a winding machine, a microphone for collecting the sound of the winding machine, a drive mechanism for changing the position or direction of the microphone and the camera, the drive mechanism, the microphone and the camera. A remote maintenance device connected to the remote maintenance device and a maintenance center connected to the remote maintenance device via a wireless or wired network. The remote maintenance device is configured to change the position or direction of the microphone and the camera. The sound is received from the microphone whose position or direction has been changed by instructing the drive mechanism, and the presence or absence of an abnormality is judged based on this sound. A control means for sending a sound together with an interrupt signal, and a memory for storing the position or direction of the microphone and the camera and an image Elevator remote maintenance system. 2. The elevator remote maintenance system according to claim 1, wherein the microphone and the camera are integrated. 3. The control means instructs the drive mechanism to change the position or orientation of the microphone and the camera in response to a command from the maintenance center, and the sound and image of the winding machine are output from the microphone and camera whose position or orientation has changed. 2. The elevator remote maintenance system according to claim 1, further comprising: receiving the sound and transmitting the sound and the image to the maintenance center. 4. The control means instructs the drive mechanism to change the position or orientation of the microphone and the camera, receives the sound and image of the hoist from the microphone and camera whose position or orientation is changed, and receives the sound. The elevator remote maintenance system according to claim 1, wherein the sound and the image stored in the memory are read from a maintenance center. 5. The control means changes the position or direction of the microphone so as to perform scanning in a zigzag system in which after scanning in the right direction, scanning is then performed in the left direction and then in the right direction. The elevator remote maintenance system according to claim 1, wherein the drive mechanism is instructed. 6. A variation instruction to scan in a zigzag system in which the control means scans the position or direction of the microphone in the upward direction, then scans in the downward direction, and then in the upward direction. The elevator remote maintenance system according to any one of claims 1, 3, and 4, characterized by instructing the drive mechanism. 7. The drive mechanism is such that the control means combines the direction or position of the microphone and the camera in a first plane with a scan in a second plane orthogonal to the first plane. 7. The elevator remote maintenance system according to any one of claims 1, 3 to 6, wherein a variable instruction is given to the elevator remote maintenance system. 8. The elevator remote maintenance system according to any one of claims 1 to 7, wherein two sets of integrated winder observation microphones and cameras are provided at different positions. 9. The control means first instructs the drive mechanism to change the positions or orientations of the microphone and the camera in block units, and the abnormality is detected based on the sound received from the microphone and the camera whose position or orientation has changed. The presence or absence is judged, and when an abnormality occurs, the driving mechanism is instructed to change the position or orientation of the microphone and the camera in a finer unit in the block where the abnormality occurs, and the microphone and the position or orientation of which are changed again. The elevator remote maintenance system according to any one of claims 1 to 3, wherein the abnormal direction is specified based on the sound received from the camera. 10. The control means determines that the volume of the sound received from the microphone is abnormal when the volume of the sound is larger than a threshold value determined based on the average value of the generated sound when the failure rate of the winding machine is in the stable period. The elevator remote maintenance system according to any one of claims 1, 3 to 7 and 9, wherein: 11. An illumination ON / OFF control unit is provided, which is provided with a lighting device for photographing a camera, and in which a driving mechanism turns on the lighting device only when the camera is driven, and turns off otherwise. Claims 1, 3 to 7, 9, 1
The elevator remote maintenance system according to any of 0. 12. The elevator remote maintenance system according to claim 10, wherein the lighting device is integrated with a microphone and a camera. 13. The elevator remote maintenance system according to claim 1, wherein the microphone is replaced with a heat sensitive device capable of determining whether or not there is an abnormality even with heat. 14. The elevator remote maintenance system according to claim 13, wherein the heat sensitive device is an infrared camera. 15. The elevator remote maintenance system according to claim 1, wherein the microphone is replaced with a vibration sensor capable of determining whether or not there is an abnormality even with vibration.