WO2018101296A1 - Elevator rope monitoring device and elevator rope monitoring method - Google Patents

Elevator rope monitoring device and elevator rope monitoring method Download PDF

Info

Publication number
WO2018101296A1
WO2018101296A1 PCT/JP2017/042732 JP2017042732W WO2018101296A1 WO 2018101296 A1 WO2018101296 A1 WO 2018101296A1 JP 2017042732 W JP2017042732 W JP 2017042732W WO 2018101296 A1 WO2018101296 A1 WO 2018101296A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
elevator rope
line sensor
rope
imaging
Prior art date
Application number
PCT/JP2017/042732
Other languages
French (fr)
Inventor
Yusuke Watabe
Makoto Niwakawa
Mitsuru Kato
Ryuji Onoda
Hirotomo Tanaka
Takashi Takeuchi
Original Assignee
Meidensha Corporation
Nippon Otis Elevator Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meidensha Corporation, Nippon Otis Elevator Company filed Critical Meidensha Corporation
Priority to CN201780073954.7A priority Critical patent/CN110267901B/en
Priority to DE112017006030.3T priority patent/DE112017006030T5/en
Priority to US16/465,007 priority patent/US11975946B2/en
Publication of WO2018101296A1 publication Critical patent/WO2018101296A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1238—Checking means specially adapted for ropes or cables by optical techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions

Definitions

  • the present invention relates to an elevator rope monitoring device and an elevator rope monitoring method.
  • a rope tester for inspecting using a magnetic force line is known as a device for inspecting an elevator rope.
  • a magnetic force line it is necessary to keep the distance between the elevator rope and the sensor a constant distance, and it is necessary to fix the position other than the progressing direction of the elevator rope using a rope guide or the like. That is, for contact-type there is a problem that when a wire (strand) configuring the elevator rope breaks and jumps out from the elevator rope surface, measurement of the elevator rope cannot be carried out. Furthermore, since it is operated at a low speed, it was impossible to inspect while carrying out a normal operation.
  • patent literature 1 discloses a device for imaging an elevator rope using a camera provided on an elevator car, and determining the deterioration of the elevator rope when the outer diameter of the elevator rope deviates from a reference value.
  • patent literature 2 discloses a technique for imaging a wire rope for an elevator using an ITV device every time the elevator travels one frame, and determining if it is necessary to replace the rope when detected that there is a predetermined number of a predetermined size or a predetermined length of abrasion feet on a wire within a predetermined range of the image signal, or when detected that there is a predetermined number of wire breaks within a predetermined range.
  • the inspection device disclosed in the patent literature 1 has a problem in that it is necessary to install a camera on the elevator car, and only one side of the elevator rope can be measured due to the configuration of the device.
  • the inspection device disclosed in the patent literature 2 has a problem in that when the elevator moves one frame, the shutter of the ITV device is released and the image is saved, but depending on the timing at which the shutter is released, the imaging range of the area sensor, and on the distance between the ITV device and the rope at the time of installation, the lens, and the like, it is difficult to adjust to image the entire length of the rope without gaps.
  • an object of the present invention is to provide an elevator rope monitoring device and an elevator rope monitoring method where it is easy to install and adjust the camera, and that can monitor the elevator rope by acquiring once an entire circumferential image of the elevator rope.
  • the elevator rope monitoring device is provided with: imaging means for imaging the entire circumference of the traveling elevator rope; speed/position detecting means for detecting the traveling speed and traveling position of the elevator rope; image recording means for inputting the image acquired by the recording means in association with the traveling position of the elevator rope detected by the speed/position detecting means; image creating means for creating an entire circumferential image of the elevator rope from the image; and image processing means for detecting an abnormality in the elevator rope by analyzing the entire circumferential image.
  • the elevator rope monitoring device wherein the imaging means is a plurality of line sensor cameras; the plurality of line sensor cameras are all synchronized with each other, and mutually image the entire circumference of the elevator rope by imaging different positions in the circumferential direction of the elevator rope; and the image creating means creates an entire circumferential image from the image imaged by all the line sensor cameras.
  • the elevator rope monitoring device is provided with: a mirror that reflects the elevator rope; wherein the imaging means is a single line sensor camera; the line sensor camera images the entire circumference of the elevator rope by simultaneously imaging the elevator rope and the mirror image of the elevator rope reflected by the mirror; and the image creating means corrects an image portion of the mirror image of the elevator rope imaged by the line sensor camera, and creates the entire circumferential image by synthesizing the corrected image of the mirror image of the elevator rope and the image of the elevator rope.
  • the elevator rope monitoring method is provided with the steps of: detecting the traveling speed and traveling position of an elevator rope using a speed/position detecting means, while imaging the entire circumference of the traveling elevator rope using an imaging means; inputting an image acquired by the imaging means using an image recording means in association with the traveling position of the elevator rope detected by the speed/position detecting means; creating an entire circumferential image of the elevator rope from the image using an image creating means; detecting an abnormality in the elevator rope by analyzing the entire circumferential image using an image processing means.
  • the elevator rope monitoring method is a plurality of line sensor cameras; the plurality of line sensor cameras are all synchronized with each other, and mutually image the entire circumference of the elevator rope by imaging different positions in the circumferential direction of the elevator rope; and the image creating means creates an entire circumferential image from the image imaged by all the line sensor cameras.
  • the elevator rope monitoring method is a single line sensor camera; a mirror is provided for reflecting the elevator rope; the line sensor camera images the entire circumference of the elevator rope by simultaneously imaging the elevator rope and the mirror image of the elevator rope reflected by the mirror; and the image creating means corrects an image portion of the mirror image of the elevator rope imaged by the line sensor camera, and creates the entire circumferential image by synthesizing the corrected image of the mirror image of the elevator rope and the image of the elevator rope.
  • the elevator rope monitoring device it is easy to install and adjust the camera, and it is possible to monitor an elevator rope by acquiring once the entire circumference of the elevator rope.
  • FIG. 1 is a configuration diagram schematically illustrating the elevator rope monitoring device according to a first embodiment of the present invention.
  • FIG. 2 is a flowchart illustrating the flow of the rope diagnosis processing according to the rope diagnosis device illustrated in FIG. 1.
  • FIG. 3(a) is an explanatory view illustrating an example of setting an inspection range for an entire circumference image of the rope;
  • FIG. 3(b) is an explanatory view illustrating an example of a template of a normal pattern.
  • FIG. 4 is a configuration diagram schematically illustrating the elevator rope monitoring device according to a second embodiment of the present invention.
  • FIG. 5 is an explanatory view illustrating the processing according to the image creating part illustrated in FIG. 4.
  • FIG. 6 is a flowchart illustrating the flow of the rope diagnosis processing according to the rope diagnosis device illustrated in FIG. 4.
  • the elevator rope monitoring device and the elevator rope monitoring method according to the present invention will be described below with reference to the drawings.
  • the elevator rope monitoring device and the elevator rope monitoring method according to the present invention has installed a line sensor camera around the hoisting machine of the elevator rope, and monitors the state of the imaged rope by image processing data acquired by the line sensor camera.
  • the entire circumferential of the elevator rope is inspected in a noncontact manner at once by aligning the imaging lines of the plurality of the line sensor camera disposed in the circumferential direction of the rope, or using a mirror and the like.
  • the elevator rope monitoring device is provided with a plurality (two in FIG. 1) of a line sensor camera 1a, 1b as imaging means, a plurality (two in FIG. 1) of a lighting device 2a, 2b, a rope diagnosis device 3, and a speed/position detecting device 4 as a speed/position detecting means.
  • the line sensor cameras 1a, 1b are synchronized with each other, are installed so that the respective scanning direction are orthogonal to the traveling direction of the elevator rope 5 and the respective imaging lines are at the same position in the traveling direction of the elevator rope 5, and are disposed so as to be able to image the entire circumference in the circumferential direction of the elevator rope 5 using the line sensor cameras 1a, 1b.
  • 11a illustrated in FIG. 1 illustrates an imaging line imaged by the line sensor camera 1a
  • 11b illustrates an imaging line imaged by the line sensor camera 1b.
  • the line sensor cameras 1a, 1b are set so as to image while automatically changing the sampling frequency according to the traveling speed (position) of the elevator rope 5 based on the information from the speed/position detecting device 4.
  • the lighting devices 2a, 2b are installed near the line sensor cameras 1a, 1b, respectively, and light a portion imaged by the line sensor cameras 1a, 1b of the elevator rope 5.
  • the rope diagnosis device 3 inspects the state of the elevator rope 5 based on image data of the elevator rope 5 images by the line sensor cameras 1a, 1b; and is provided with an image recording part 3a as the image recording means, an image creating part 3b as the image creating means, and an image processing part 3c as the image processing means.
  • the image recording part 3a inputs image data from all the line sensor cameras 1a, 1b, and records this in association with the position information acquired from the speed/position detecting device 4.
  • the image creating device 3b creates an entire circumferential image 6 (see FIG. 3(a)) for each elevator rope 5 based on image data acquired from all the line sensor cameras 1a, 1b.
  • the image processing part 3c analyzes the entire circumferential image 6, and extracts wire breakage, strand breakage, and the like.
  • the speed/position detecting device 4 acquires position information of the elevator rope 5, and, for example, is an encoder or the like for detecting rotation of the motor of the elevator hoisting machine, not illustrated.
  • the position information acquired by the speed/position detecting device 4 is synchronized with the image data images by the line sensor cameras 1a, 1b.
  • the rope diagnosis device 3 first records the image of the elevator rope 5 imaged by all the line sensor cameras 1a, 1b in association with the position information acquired from the speed/position detecting device 4 using the image recording part 3a (step S11), then creates the entire circumferential image 6 of the elevator rope 5 by synthesizing the images imaged by the line sensor cameras 1a, 1b for each of the same imaging times using the image creating part 3b (step S12).
  • image processing of the entire circumferential image 6 of the elevator rope 5 is carried out by the image processing part 3c (step S13).
  • the inspection range 6a is set for the entire circumferential image 6 (step S13a).
  • the inspection range 6a is set as the range corresponding to a normal pattern template 7 created by acquiring the image of a normal elevator rope 5 in advance, as illustrated in FIG. 3 (b).
  • step S13a image inspection is carried out using template matching for comparing the image within the inspection range 6a and the normal pattern template 7 (step S13b).
  • step S13c it is determined whether a correlation value between the image within the inspection range 6a and the normal pattern template 7 is higher than a preset threshold value (step S13c); when the correlation value is higher than the threshold value (YES), the range is determined to be not abnormal (OK), and transitions to step S13d. Meanwhile, in step S13c, when the correlation value is lower than the threshold value (NO), since it is different than the normal pattern, it is determined that there is a potential for wire breakage or strand breakage (NG), and transitions to step S13e.
  • step S13d it is determined whether inspection has been performed to the end of the elevator rope 5, and if the inspection has not been performed to the end of the elevator rope 5 (NO), it returns to step S13a, but if the inspection has been performed to the end of the elevator rope 5 (YES), the diagnosis processing of the elevator rope 5 is completed.
  • step S13e it is determined that there is an abnormal location, the existence of the abnormal location and its position are notified, and the diagnosis processing is completed. Note that in FIG. 3 (a), an example in which a strand break 5a has occurred is illustrated.
  • the entire circumferential of the elevator rope 5 is acquired at once by a plurality of a line sensor camera 1a, 1b synchronized with each other, and monitoring of the elevator rope 5 can be carried out.
  • the position information is input from the speed/position detecting device 4, which is an external device, and is imaged while automatically changing the sampling frequency of the line sensor camera 1a, 1b according to the traveling speed (position) of the elevator rope 5, it is no longer necessary to take into consideration the imaging range of the scanning direction compared to when imaging using an area camera as in a conventional case, and it is possible to carry out monitoring of the elevator rope 5 without depending on the distance between the camera and the rope when installing the line sensor cameras 1a, 1b, or the lens.
  • the elevator rope monitoring device is provided with a single line sensor camera 1 as the imaging means, a plurality of a lighting device 2 (partially omitted in the drawings), a mirror 8, a rope diagnosis device 9, and a speed/position detecting device 4 as the speed/position detecting means.
  • the line sensor camera 1 is installed so that the scanning direction is orthogonal to the traveling direction of the elevator rope 5. Furthermore, the line sensor camera 1 is set to image while automatically changing the sampling frequency according to the traveling speed (position) of the elevator rope 5, based on the information of the speed/position detecting device 4.
  • the lighting device 2 lights the portion being imaged by the line sensor camera 1 in the traveling direction of the elevator rope 5.
  • the mirror 8 reflects the surface on the opposite side (hereinafter, back surface) of the surface facing the line sensor camera 1, and is disposed so as to be able to image the back surface using the line sensor camera 1. Furthermore, the mirror 8 is installed so that the elevator rope 5 directly imaged by the line sensor camera 1 and the mirror image (hereinafter, elevator rope mirror image) 5' of the elevator rope 5 reflected by the mirror 8 do not overlap in the image imaged by the line sensor camera 1. Additionally, the mirror 8 is disposed so as match the position in the traveling direction of the elevator rope 5 imaged by the line sensor camera 1, that is, to match the position in the traveling direction of the imaging line 11c directly imaged by the line sensor camera 1 and the imaging line 11d imaging the elevator rope mirror image 5'.
  • the entire circumference in the circumferential direction of the elevator rope 5 is imaged by a single line sensor camera 1.
  • the mirror 8 can reflect the elevator rope 5 so as to be able to image a portion that cannot be directly imaged by the line sensor camera 1 of the elevator rope 5 using the line sensor camera 1; the configuration thereof does not matter.
  • the line sensor camera 1, lighting device 2, and mirror 8 are installed, for example, around the hoisting machine of the elevator rope 5.
  • the rope diagnosis device 9 inspects the state of elevator rope 5 by image processing the image data in which the elevator rope 5 was imaged by the line sensor camera 1, and is provided with an image recording part 9a as the image recording means, an image creating part 9b as the image creating means, and an image processing part 9c as the image processing means.
  • the image recording part 9a inputs image data from the line sensor camera 1 and records this in association with the position information acquired from the speed/position detecting device 4.
  • the image creating part 9b creates an entire circumferential image 6 (see FIG. 3(a)) for each elevator rope 5 based on image data acquired from the line sensor camera 1.
  • the portion in which the elevator rope mirror image 5' was imaged among the images imaged by the line sensor camera 1 must correct the image unlike the portion in which the elevator rope 5 was directly imaged.
  • the image creating part 9b creates an entire circumferential image 6 of the elevator rope 5 by correcting the portion in which the elevator rope mirror image 5' is imaged. More specifically, as illustrated in FIG.
  • the speed/position detecting device 4 is the same as that described in embodiment 1, and a detailed description thereof will be omitted here.
  • the image of the elevator rope 5 imaged by the line sensor camera 1 is recorded using the image recording part 9a in association with the position information acquired from the speed/position detecting device 4 (step S21). Then, the entire circumferential image 6 is created using the image creating part 9b by correcting the image portion of the elevator rope 5 reflected by mirror 8 from among the image data acquired by the line sensor camera 1 as described above (step S22).
  • the inspection range 6a for the entire circumferential image 6 is set (step S23a).
  • the inspection range 6a is set as the range corresponding to the normal pattern template 7 created by acquiring the image of the normal elevator rope 5 in advance, as illustrated in FIG. 3 (b).
  • step S23a image inspection is carried out using template matching for comparing the image within the inspection range 6a and the normal pattern template 7 (step S23b).
  • step S23c it is determined whether a correlation value between the image within the inspection range 6a and the normal pattern template 7 is higher than a preset threshold value (step S23c); when the correlation value is higher than the threshold value (YES), the range is determined to be not abnormal (OK), and transitions to step S23d. Meanwhile, in step S23c, when the correlation value is lower than the threshold value (NO), since it is different than the normal pattern, it is determined that there is a potential for wire breakage or strand breakage (NG), and transitions to step S23e.
  • step S23d it is determined whether inspection has been performed to the end of the elevator rope 5, and if the inspection has not been performed to the end of the elevator rope 5 (NO), it returns to step S23a, but if the inspection has been performed to the end of the elevator rope 5 (YES), the diagnosis processing of the elevator rope 5 is completed.
  • step S23e it is determined that there is an abnormal location, the existence of the abnormal location and its position are notified, and the diagnosis processing is completed.
  • the elevator monitoring device configured as such, in addition to the effects of the invention according to embodiment 1, and because the entire circumferential of the elevator rope 5 can be imaged by a single line sensor camera 1, it is not necessary to synchronize a plurality of a line sensor camera, so it is possible to simplify the device configuration and to facilitate adjustment related to installation.
  • FIG. 4 an example using the mirror 8 described above is illustrated in FIG. 4, but instead of the mirror 8, for example, a plurality of a mirror may be disposed, a concave mirror may be used, or the like, and various modifications are possible without departing from the purpose of the present invention.
  • the present invention can be applied to an elevator rope monitoring device that monitors an elevator rope without contact using a camera.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

An elevator rope monitoring device, provided with: line sensor cameras 1a, 1b for imaging the entire circumference of the traveling elevator rope 5; a speed/position detecting device 4 for detecting the traveling speed and traveling position of the elevator rope 5; an image recording part 3a for inputting the image acquired by the line sensor cameras 1a, 1b in association with the traveling position of the elevator rope 5 detected by the speed/position detecting means 4; an image creating part 3b for creating an entire circumferential image of the elevator rope 5 from the image imaged by the line sensor cameras 1a, 1b; and an image processing part 3c for detecting an abnormality in the elevator rope 5 by analyzing the entire circumferential image.

Description

ELEVATOR ROPE MONITORING DEVICE AND ELEVATOR ROPE MONITORING METHOD
The present invention relates to an elevator rope monitoring device and an elevator rope monitoring method.
Conventionally, a rope tester for inspecting using a magnetic force line is known as a device for inspecting an elevator rope. However, when using a magnetic force line, it is necessary to keep the distance between the elevator rope and the sensor a constant distance, and it is necessary to fix the position other than the progressing direction of the elevator rope using a rope guide or the like. That is, for contact-type there is a problem that when a wire (strand) configuring the elevator rope breaks and jumps out from the elevator rope surface, measurement of the elevator rope cannot be carried out. Furthermore, since it is operated at a low speed, it was impossible to inspect while carrying out a normal operation.
In order to solve such a problem, a non-contact type inspection device using a camera has been proposed. For example, patent literature 1 below discloses a device for imaging an elevator rope using a camera provided on an elevator car, and determining the deterioration of the elevator rope when the outer diameter of the elevator rope deviates from a reference value.
Furthermore, patent literature 2 discloses a technique for imaging a wire rope for an elevator using an ITV device every time the elevator travels one frame, and determining if it is necessary to replace the rope when detected that there is a predetermined number of a predetermined size or a predetermined length of abrasion feet on a wire within a predetermined range of the image signal, or when detected that there is a predetermined number of wire breaks within a predetermined range.
Japanese Unexamined Patent Application Publication No. 2014-88261 Japanese Unexamined Patent Application Publication No. 2009-12903
However, the inspection device disclosed in the patent literature 1 has a problem in that it is necessary to install a camera on the elevator car, and only one side of the elevator rope can be measured due to the configuration of the device.
Furthermore, the inspection device disclosed in the patent literature 2 has a problem in that when the elevator moves one frame, the shutter of the ITV device is released and the image is saved, but depending on the timing at which the shutter is released, the imaging range of the area sensor, and on the distance between the ITV device and the rope at the time of installation, the lens, and the like, it is difficult to adjust to image the entire length of the rope without gaps.
Thus, an object of the present invention is to provide an elevator rope monitoring device and an elevator rope monitoring method where it is easy to install and adjust the camera, and that can monitor the elevator rope by acquiring once an entire circumferential image of the elevator rope.
In order to solve the aforementioned problems, the elevator rope monitoring device according to a first invention is provided with: imaging means for imaging the entire circumference of the traveling elevator rope; speed/position detecting means for detecting the traveling speed and traveling position of the elevator rope; image recording means for inputting the image acquired by the recording means in association with the traveling position of the elevator rope detected by the speed/position detecting means; image creating means for creating an entire circumferential image of the elevator rope from the image; and image processing means for detecting an abnormality in the elevator rope by analyzing the entire circumferential image.
Furthermore, in order to solve the aforementioned problems, the elevator rope monitoring device according to a second invention, wherein the imaging means is a plurality of line sensor cameras; the plurality of line sensor cameras are all synchronized with each other, and mutually image the entire circumference of the elevator rope by imaging different positions in the circumferential direction of the elevator rope; and the image creating means creates an entire circumferential image from the image imaged by all the line sensor cameras.
Furthermore, in order to solve the aforementioned problems, the elevator rope monitoring device according to a third invention is provided with: a mirror that reflects the elevator rope; wherein the imaging means is a single line sensor camera; the line sensor camera images the entire circumference of the elevator rope by simultaneously imaging the elevator rope and the mirror image of the elevator rope reflected by the mirror; and the image creating means corrects an image portion of the mirror image of the elevator rope imaged by the line sensor camera, and creates the entire circumferential image by synthesizing the corrected image of the mirror image of the elevator rope and the image of the elevator rope.
Furthermore, in order to solve the aforementioned problems, the elevator rope monitoring method according to a fourth invention is provided with the steps of: detecting the traveling speed and traveling position of an elevator rope using a speed/position detecting means, while imaging the entire circumference of the traveling elevator rope using an imaging means; inputting an image acquired by the imaging means using an image recording means in association with the traveling position of the elevator rope detected by the speed/position detecting means; creating an entire circumferential image of the elevator rope from the image using an image creating means; detecting an abnormality in the elevator rope by analyzing the entire circumferential image using an image processing means.
Furthermore, in order to solve the aforementioned problems, the elevator rope monitoring method according to a fifth invention, wherein the imaging means is a plurality of line sensor cameras; the plurality of line sensor cameras are all synchronized with each other, and mutually image the entire circumference of the elevator rope by imaging different positions in the circumferential direction of the elevator rope; and the image creating means creates an entire circumferential image from the image imaged by all the line sensor cameras.
Furthermore, in order to solve the aforementioned problems, the elevator rope monitoring method according to a sixth invention, wherein the imaging means is a single line sensor camera; a mirror is provided for reflecting the elevator rope; the line sensor camera images the entire circumference of the elevator rope by simultaneously imaging the elevator rope and the mirror image of the elevator rope reflected by the mirror; and the image creating means corrects an image portion of the mirror image of the elevator rope imaged by the line sensor camera, and creates the entire circumferential image by synthesizing the corrected image of the mirror image of the elevator rope and the image of the elevator rope.
According to the elevator rope monitoring device according to the present invention, it is easy to install and adjust the camera, and it is possible to monitor an elevator rope by acquiring once the entire circumference of the elevator rope.
FIG. 1 is a configuration diagram schematically illustrating the elevator rope monitoring device according to a first embodiment of the present invention. FIG. 2 is a flowchart illustrating the flow of the rope diagnosis processing according to the rope diagnosis device illustrated in FIG. 1. FIG. 3(a) is an explanatory view illustrating an example of setting an inspection range for an entire circumference image of the rope; FIG. 3(b) is an explanatory view illustrating an example of a template of a normal pattern. FIG. 4 is a configuration diagram schematically illustrating the elevator rope monitoring device according to a second embodiment of the present invention. FIG. 5 is an explanatory view illustrating the processing according to the image creating part illustrated in FIG. 4. FIG. 6 is a flowchart illustrating the flow of the rope diagnosis processing according to the rope diagnosis device illustrated in FIG. 4.
The elevator rope monitoring device and the elevator rope monitoring method according to the present invention will be described below with reference to the drawings. The elevator rope monitoring device and the elevator rope monitoring method according to the present invention has installed a line sensor camera around the hoisting machine of the elevator rope, and monitors the state of the imaged rope by image processing data acquired by the line sensor camera.
In the elevator rope monitoring device and the elevator rope monitoring method, for example, the entire circumferential of the elevator rope is inspected in a noncontact manner at once by aligning the imaging lines of the plurality of the line sensor camera disposed in the circumferential direction of the rope, or using a mirror and the like.
The details of the elevator rope monitoring device and the elevator rope monitoring method according to the first embodiment of the present invention will be described using FIG. 1 to FIG. 3.
As illustrated in FIG. 1, the elevator rope monitoring device according to the present embodiment is provided with a plurality (two in FIG. 1) of a line sensor camera 1a, 1b as imaging means, a plurality (two in FIG. 1) of a lighting device 2a, 2b, a rope diagnosis device 3, and a speed/position detecting device 4 as a speed/position detecting means.
The line sensor cameras 1a, 1b are synchronized with each other, are installed so that the respective scanning direction are orthogonal to the traveling direction of the elevator rope 5 and the respective imaging lines are at the same position in the traveling direction of the elevator rope 5, and are disposed so as to be able to image the entire circumference in the circumferential direction of the elevator rope 5 using the line sensor cameras 1a, 1b. Note that 11a illustrated in FIG. 1 illustrates an imaging line imaged by the line sensor camera 1a, and 11b illustrates an imaging line imaged by the line sensor camera 1b.
　　 Furthermore, the line sensor cameras 1a, 1b are set so as to image while automatically changing the sampling frequency according to the traveling speed (position) of the elevator rope 5 based on the information from the speed/position detecting device 4.
The lighting devices 2a, 2b are installed near the line sensor cameras 1a, 1b, respectively, and light a portion imaged by the line sensor cameras 1a, 1b of the elevator rope 5.
These line sensor cameras 1a, 1b and the lighting devices 2a, 2b, for example, are installed around the hoisting machine of the elevator rope 5.
The rope diagnosis device 3 inspects the state of the elevator rope 5 based on image data of the elevator rope 5 images by the line sensor cameras 1a, 1b; and is provided with an image recording part 3a as the image recording means, an image creating part 3b as the image creating means, and an image processing part 3c as the image processing means.
The image recording part 3a inputs image data from all the line sensor cameras 1a, 1b, and records this in association with the position information acquired from the speed/position detecting device 4.
　　 The image creating device 3b creates an entire circumferential image 6 (see FIG. 3(a)) for each elevator rope 5 based on image data acquired from all the line sensor cameras 1a, 1b.
　　 The image processing part 3c analyzes the entire circumferential image 6, and extracts wire breakage, strand breakage, and the like.
The speed/position detecting device 4 acquires position information of the elevator rope 5, and, for example, is an encoder or the like for detecting rotation of the motor of the elevator hoisting machine, not illustrated. The position information acquired by the speed/position detecting device 4 is synchronized with the image data images by the line sensor cameras 1a, 1b.
Next, the flow of the rope diagnosis according to the rope diagnosis device 3 of the present embodiment will be described using FIG. 2 and FIG. 3.
　　 As illustrated in FIG. 2, the rope diagnosis device 3 first records the image of the elevator rope 5 imaged by all the line sensor cameras 1a, 1b in association with the position information acquired from the speed/position detecting device 4 using the image recording part 3a (step S11), then creates the entire circumferential image 6 of the elevator rope 5 by synthesizing the images imaged by the line sensor cameras 1a, 1b for each of the same imaging times using the image creating part 3b (step S12).
Thereafter, image processing of the entire circumferential image 6 of the elevator rope 5 is carried out by the image processing part 3c (step S13).
Specifically, first, as illustrated in FIG. 3 (a), the inspection range 6a is set for the entire circumferential image 6 (step S13a). The inspection range 6a is set as the range corresponding to a normal pattern template 7 created by acquiring the image of a normal elevator rope 5 in advance, as illustrated in FIG. 3 (b).
Following step S13a, image inspection is carried out using template matching for comparing the image within the inspection range 6a and the normal pattern template 7 (step S13b).
Subsequently, it is determined whether a correlation value between the image within the inspection range 6a and the normal pattern template 7 is higher than a preset threshold value (step S13c); when the correlation value is higher than the threshold value (YES), the range is determined to be not abnormal (OK), and transitions to step S13d. Meanwhile, in step S13c, when the correlation value is lower than the threshold value (NO), since it is different than the normal pattern, it is determined that there is a potential for wire breakage or strand breakage (NG), and transitions to step S13e.
In step S13d, it is determined whether inspection has been performed to the end of the elevator rope 5, and if the inspection has not been performed to the end of the elevator rope 5 (NO), it returns to step S13a, but if the inspection has been performed to the end of the elevator rope 5 (YES), the diagnosis processing of the elevator rope 5 is completed.
Furthermore, in step S13e, it is determined that there is an abnormal location, the existence of the abnormal location and its position are notified, and the diagnosis processing is completed. Note that in FIG. 3 (a), an example in which a strand break 5a has occurred is illustrated.
According to the elevator rope monitoring device according to the present embodiment configured as such, the entire circumferential of the elevator rope 5 is acquired at once by a plurality of a line sensor camera 1a, 1b synchronized with each other, and monitoring of the elevator rope 5 can be carried out. In addition, since the position information is input from the speed/position detecting device 4, which is an external device, and is imaged while automatically changing the sampling frequency of the line sensor camera 1a, 1b according to the traveling speed (position) of the elevator rope 5, it is no longer necessary to take into consideration the imaging range of the scanning direction compared to when imaging using an area camera as in a conventional case, and it is possible to carry out monitoring of the elevator rope 5 without depending on the distance between the camera and the rope when installing the line sensor cameras 1a, 1b, or the lens.
That is, when using a conventional area camera, it is not necessary to adjust the timing for releasing the shutter according to the imaging range in the traveling direction, and since the imaging timing depends on the distance between the camera and the rope when installing the area camera, or the lens, it is difficult to adjust so as to image the entire length of the rope without gaps, but in the present embodiment, by using the line sensor cameras 1a, 1b, and inputting the position information from the outside (in the present embodiment, the speed/position detecting device 4), since it can image while automatically changing the sampling frequency of the line sensor camera 1a, 1b according to the traveling speed (position) of the elevator rope 5, installation and adjustment of the elevator rope monitoring device is easy.
Furthermore, by using the position information acquired from the speed/position detecting device 4, since the position of the elevator rope 5 on the image imaged using the line sensor cameras 1a, 1b is linked with the actual position information of the elevator rope 5, it is possible to easily identify an abnormal location when detecting an abnormality.
The elevator rope monitoring device and the elevator rope monitoring method according to the second embodiment of the present invention will be described in detail below using FIG. 4 and FIG. 5.
As illustrated in FIG. 4, the elevator rope monitoring device according to the present embodiment, is provided with a single line sensor camera 1 as the imaging means, a plurality of a lighting device 2 (partially omitted in the drawings), a mirror 8, a rope diagnosis device 9, and a speed/position detecting device 4 as the speed/position detecting means.
The line sensor camera 1 is installed so that the scanning direction is orthogonal to the traveling direction of the elevator rope 5. Furthermore, the line sensor camera 1 is set to image while automatically changing the sampling frequency according to the traveling speed (position) of the elevator rope 5, based on the information of the speed/position detecting device 4.
The lighting device 2 lights the portion being imaged by the line sensor camera 1 in the traveling direction of the elevator rope 5.
The mirror 8 reflects the surface on the opposite side (hereinafter, back surface) of the surface facing the line sensor camera 1, and is disposed so as to be able to image the back surface using the line sensor camera 1. Furthermore, the mirror 8 is installed so that the elevator rope 5 directly imaged by the line sensor camera 1 and the mirror image (hereinafter, elevator rope mirror image) 5' of the elevator rope 5 reflected by the mirror 8 do not overlap in the image imaged by the line sensor camera 1. Additionally, the mirror 8 is disposed so as match the position in the traveling direction of the elevator rope 5 imaged by the line sensor camera 1, that is, to match the position in the traveling direction of the imaging line 11c directly imaged by the line sensor camera 1 and the imaging line 11d imaging the elevator rope mirror image 5'.
By installing the mirror 8 as such, the entire circumference in the circumferential direction of the elevator rope 5 is imaged by a single line sensor camera 1.
Note that the mirror 8 can reflect the elevator rope 5 so as to be able to image a portion that cannot be directly imaged by the line sensor camera 1 of the elevator rope 5 using the line sensor camera 1; the configuration thereof does not matter.
The line sensor camera 1, lighting device 2, and mirror 8 are installed, for example, around the hoisting machine of the elevator rope 5.
The rope diagnosis device 9 inspects the state of elevator rope 5 by image processing the image data in which the elevator rope 5 was imaged by the line sensor camera 1, and is provided with an image recording part 9a as the image recording means, an image creating part 9b as the image creating means, and an image processing part 9c as the image processing means.
The image recording part 9a inputs image data from the line sensor camera 1 and records this in association with the position information acquired from the speed/position detecting device 4.
　　 The image creating part 9b creates an entire circumferential image 6 (see FIG. 3(a)) for each elevator rope 5 based on image data acquired from the line sensor camera 1. Here, in the present embodiment, the portion in which the elevator rope mirror image 5' was imaged among the images imaged by the line sensor camera 1 must correct the image unlike the portion in which the elevator rope 5 was directly imaged. Thus, in the image for each rope, the image creating part 9b creates an entire circumferential image 6 of the elevator rope 5 by correcting the portion in which the elevator rope mirror image 5' is imaged.
　　 More specifically, as illustrated in FIG. 5 (a), among the images 61A, 61B imaged by the line sensor camera 1, distortion correction for correcting distortion in the image is carried out using an inversion process and the mirror 8 for the elevator rope mirror image 61B, which is the portion in which the elevator rope mirror image 5' was imaged, the inverted image 61B' is created as illustrated in FIG. 5 (b), a synthesis processing is carried out between the elevator rope image 61A, which is the portion in which the elevator rope 5 was directly imaged by the line sensor camera 1, and the inverted image 61B', and a synthesized image 61 is created as illustrated in FIG. 5 (c). The entire circumferential image 6 is created as illustrated in FIG. 3 (a) via such processing.
　　 The image processing part 9c analyzes the entire circumferential image 6, and extracts wire breakage, strand breakage, and the like.
The speed/position detecting device 4 is the same as that described in embodiment 1, and a detailed description thereof will be omitted here.
Next, the flow of the rope diagnosis will be described according the rope diagnosis device 9 of the present embodiment using FIG. 6.
　　 As shown in FIG 6. in the rope diagnosis device 9, first, the image of the elevator rope 5 imaged by the line sensor camera 1 is recorded using the image recording part 9a in association with the position information acquired from the speed/position detecting device 4 (step S21). Then, the entire circumferential image 6 is created using the image creating part 9b by correcting the image portion of the elevator rope 5 reflected by mirror 8 from among the image data acquired by the line sensor camera 1 as described above (step S22).
Thereafter, image processing of the entire circumferential image 6 is carried out for the elevator rope 5 using the image processing part 9c (step S23).
Specifically, first, as illustrated in FIG. 3 (a), the inspection range 6a for the entire circumferential image 6 is set (step S23a). The inspection range 6a is set as the range corresponding to the normal pattern template 7 created by acquiring the image of the normal elevator rope 5 in advance, as illustrated in FIG. 3 (b).
Following step S23a, image inspection is carried out using template matching for comparing the image within the inspection range 6a and the normal pattern template 7 (step S23b).
Subsequently, it is determined whether a correlation value between the image within the inspection range 6a and the normal pattern template 7 is higher than a preset threshold value (step S23c); when the correlation value is higher than the threshold value (YES), the range is determined to be not abnormal (OK), and transitions to step S23d. Meanwhile, in step S23c, when the correlation value is lower than the threshold value (NO), since it is different than the normal pattern, it is determined that there is a potential for wire breakage or strand breakage (NG), and transitions to step S23e.
In step S23d, it is determined whether inspection has been performed to the end of the elevator rope 5, and if the inspection has not been performed to the end of the elevator rope 5 (NO), it returns to step S23a, but if the inspection has been performed to the end of the elevator rope 5 (YES), the diagnosis processing of the elevator rope 5 is completed.
Furthermore, in step S23e, it is determined that there is an abnormal location, the existence of the abnormal location and its position are notified, and the diagnosis processing is completed.
According to the elevator monitoring device according to the present embodiment configured as such, in addition to the effects of the invention according to embodiment 1, and because the entire circumferential of the elevator rope 5 can be imaged by a single line sensor camera 1, it is not necessary to synchronize a plurality of a line sensor camera, so it is possible to simplify the device configuration and to facilitate adjustment related to installation.
Note that in the present embodiment, an example using the mirror 8 described above is illustrated in FIG. 4, but instead of the mirror 8, for example, a plurality of a mirror may be disposed, a concave mirror may be used, or the like, and various modifications are possible without departing from the purpose of the present invention.　
The present invention can be applied to an elevator rope monitoring device that monitors an elevator rope without contact using a camera.
1, 1a, 1b Line sensor camera
2, 2a, 2b Lighting device
3 Rope diagnosis device
3a Image recording part
3b Image creating part
3c Image processing part
4 Speed/position detecting device
5 Elevator rope
5' Elevator rope mirror image
6 Entire circumferential image
6a Inspection range
7 Normal pattern template
8 Mirror
9 Rope diagnosis device
9a Image recording part
9b Image creating part
9c Image processing part
11a to 11d Imaging line
61A Elevator rope image
61B Elevator rope mirror image
61B' Inverted image
61 Synthesized image

Claims (6)

  1. An elevator rope monitoring device, comprising: imaging means for imaging the entire circumference of the traveling elevator rope;
    　　 speed/position detecting means for detecting the traveling speed and traveling position of the elevator rope;
    　　 image recording means for inputting the image acquired by the recording means in association with the traveling position of the elevator rope detected by the speed/position detecting means;
    　　 image creating means for creating an entire circumferential image of the elevator rope from the image; and
    　　 image processing means for detecting an abnormality in the elevator rope by analyzing the entire circumferential image.
  2. The elevator rope monitoring device according to claim 1, wherein
    　　 the imaging means is a plurality of line sensor cameras;
    　　 the plurality of line sensor cameras are all synchronized with each other, and mutually image the entire circumference of the elevator rope by imaging different positions in the circumferential direction of the elevator rope; and
    　　 the image creating means creates an entire circumferential image from the image imaged by all the line sensor cameras.
  3. The elevator rope monitoring device according to claim 1, comprising:
    　　 a mirror that reflects the elevator rope; wherein
    　　 the imaging means is a single line sensor camera;
    　　 the line sensor camera images the entire circumference of the elevator rope by simultaneously imaging the elevator rope and the mirror image of the elevator rope reflected by the mirror; and
    　　 the image creating means corrects an image portion of the mirror image of the elevator rope imaged by the line sensor camera, and creates the entire circumferential image by synthesizing the corrected image of the mirror image of the elevator rope and the image of the elevator rope.
  4. An elevator rope monitoring method, comprising the steps of:
    　　 detecting the traveling speed and traveling position of an elevator rope using a speed/position detecting means, while imaging the inter circumference of the traveling elevator rope using an imaging means;
    　　 inputting an image acquired by the imaging means using an image recording means in association with the traveling position of the elevator rope detected by the speed/position detecting means;
    　　 creating an entire circumferential image of the elevator rope from the image using an image creating means;
    　　 detecting an abnormality in the elevator rope by analyzing the entire circumferential image using an image processing means.
  5. The elevator rope monitoring method according to claim 4, wherein
    　　 the imaging means is a plurality of a line sensor camera;
    　　 the plurality of line sensor cameras are all synchronized with each other, and mutually image the entire circumference of the elevator rope by imaging different positions in the circumferential direction of the elevator rope; and
    　　 the image creating means creates an entire circumferential image from the image imaged by all the line sensor cameras.
  6. The elevator rope monitoring method according to claim 4, wherein
    　　 the imaging means is a single line sensor camera;
    　　 a mirror is provided for reflecting the elevator rope;
    　　 the line sensor camera images the entire circumference of the elevator rope by simultaneously imaging the elevator rope and the mirror image of the elevator rope reflected by the mirror; and
    　　 the image creating means corrects an image portion of the mirror image of the elevator rope imaged by the line sensor camera, and creates the entire circumferential image by synthesizing the corrected image of the mirror image of the elevator rope and the image of the elevator rope.
PCT/JP2017/042732 2016-11-29 2017-11-29 Elevator rope monitoring device and elevator rope monitoring method WO2018101296A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780073954.7A CN110267901B (en) 2016-11-29 2017-11-29 Elevator rope monitoring device and elevator rope monitoring method
DE112017006030.3T DE112017006030T5 (en) 2016-11-29 2017-11-29 DEVICE FOR MONITORING ELEVATOR ROPES AND METHOD FOR MONITORING ELEVATOR ROPES
US16/465,007 US11975946B2 (en) 2016-11-29 2017-11-29 Elevator rope monitoring device and elevator rope monitoring method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016230837A JP6815174B2 (en) 2016-11-29 2016-11-29 Elevator rope monitoring device and elevator rope monitoring method
JP2016-230837 2016-11-29

Publications (1)

Publication Number Publication Date
WO2018101296A1 true WO2018101296A1 (en) 2018-06-07

Family

ID=60702926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/042732 WO2018101296A1 (en) 2016-11-29 2017-11-29 Elevator rope monitoring device and elevator rope monitoring method

Country Status (5)

Country Link
US (1) US11975946B2 (en)
JP (1) JP6815174B2 (en)
CN (1) CN110267901B (en)
DE (1) DE112017006030T5 (en)
WO (1) WO2018101296A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200071130A1 (en) * 2018-08-29 2020-03-05 Otis Elevator Company Elevator rope inspection device and method for inspecting an elevator rope
EP3715815A1 (en) 2019-04-08 2020-09-30 Airbus Defence And Space, S.A.U. System and method for monitoring the degradation status of refueling hoses
WO2021032903A1 (en) 2019-08-16 2021-02-25 Kone Corporation Elevator rope monitoring device, a method and a computer program product thereto, and an elevator system
WO2022248742A1 (en) 2021-05-24 2022-12-01 Quandum Aerospace S.L. System for positioning image sensors and electromagnetic radiation emitters for inspection of refueling hoses with transverse, pitch and longitudinal movements and inspection procedure

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10961082B2 (en) * 2018-01-02 2021-03-30 Otis Elevator Company Elevator inspection using automated sequencing of camera presets
US10941018B2 (en) 2018-01-04 2021-03-09 Otis Elevator Company Elevator auto-positioning for validating maintenance
US11001474B2 (en) * 2018-01-15 2021-05-11 Otis Elevator Company Wear detection of elevator belt
US20200122975A1 (en) * 2018-10-19 2020-04-23 Otis Elevator Company Elevator system tension member surface anomoly detection
JP7318395B2 (en) * 2019-07-30 2023-08-01 株式会社明電舎 Elevator wire rope speed detector, elevator wire rope speed detection method
WO2021032904A1 (en) * 2019-08-16 2021-02-25 Kone Corporation Method for generating a representation of an elevator rope, a control unit and a computer program product for performing the same
ES2847236B2 (en) * 2020-01-11 2022-04-20 Quandum Aerospace S L CAMERA AND LIGHT POSITIONING SYSTEM FOR INSPECTION OF HOSES USED IN AIR REFUELING AND INSPECTION PROCEDURE
CN111847174B (en) * 2020-08-28 2021-11-09 福建省特种设备检验研究院 Traction sheave wear degree monitoring device and method thereof
CN111999811A (en) * 2020-09-16 2020-11-27 中南大学 Automatic alignment welding device for optical fiber end cap
CN111999812A (en) * 2020-09-16 2020-11-27 中南大学 Optical power feedback-based automatic alignment and fusion welding device and method for optical fiber end caps
WO2024026769A1 (en) * 2022-08-04 2024-02-08 中交第二航务工程局有限公司 Cable strand unmanned follow-up traction intelligent recognition system and method based on machine vision

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009012903A (en) 2007-07-03 2009-01-22 Mitsubishi Electric Building Techno Service Co Ltd Device and method for inspecting component strand disconnection of elevator wire rope
JP2009057126A (en) * 2007-08-30 2009-03-19 Graphin Co Ltd Deformation detector of rope for elevator
WO2010092619A1 (en) * 2009-02-12 2010-08-19 Otis Elevator Company Elevator tension member image inspection device
US20120294506A1 (en) * 2005-10-20 2012-11-22 Casar Drahtseilwerk Saar Gmbh Method and device for inspecting a traveling wire cable
JP2014088261A (en) 2012-10-31 2014-05-15 Mitsubishi Electric Corp Elevator device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0924297A2 (en) * 2009-02-12 2016-01-26 Otis Elevator Co tension limb monitoring device and method, and, elevator system
JP5654737B2 (en) * 2009-07-02 2015-01-14 第一実業ビスウィル株式会社 Cord inspection device
JP5413096B2 (en) 2009-09-29 2014-02-12 株式会社明電舎 Wire rope inspection device
JP5428798B2 (en) 2009-11-20 2014-02-26 株式会社明電舎 Wire rope inspection device
JP5413148B2 (en) 2009-11-20 2014-02-12 株式会社明電舎 Wire rope inspection device
JP5446849B2 (en) 2009-12-25 2014-03-19 株式会社明電舎 Wire rope inspection device
JP5494286B2 (en) * 2010-06-25 2014-05-14 株式会社明電舎 Overhead position measuring device
EP2595910A1 (en) * 2010-07-23 2013-05-29 Inventio AG Nondestructive testing of a carrier element of a lift installation
EP2958844B1 (en) * 2013-02-21 2018-09-05 Otis Elevator Company Elevator cord health monitoring
JP7011554B2 (en) * 2018-08-29 2022-01-26 オーチス エレベータ カンパニー Elevator rope inspection device and elevator rope inspection method
WO2021032903A1 (en) * 2019-08-16 2021-02-25 Kone Corporation Elevator rope monitoring device, a method and a computer program product thereto, and an elevator system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120294506A1 (en) * 2005-10-20 2012-11-22 Casar Drahtseilwerk Saar Gmbh Method and device for inspecting a traveling wire cable
JP2009012903A (en) 2007-07-03 2009-01-22 Mitsubishi Electric Building Techno Service Co Ltd Device and method for inspecting component strand disconnection of elevator wire rope
JP2009057126A (en) * 2007-08-30 2009-03-19 Graphin Co Ltd Deformation detector of rope for elevator
WO2010092619A1 (en) * 2009-02-12 2010-08-19 Otis Elevator Company Elevator tension member image inspection device
JP2014088261A (en) 2012-10-31 2014-05-15 Mitsubishi Electric Corp Elevator device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200071130A1 (en) * 2018-08-29 2020-03-05 Otis Elevator Company Elevator rope inspection device and method for inspecting an elevator rope
CN110872037A (en) * 2018-08-29 2020-03-10 奥的斯电梯公司 Elevator rope inspection device and method for inspecting elevator rope
CN110872037B (en) * 2018-08-29 2021-10-01 奥的斯电梯公司 Elevator rope inspection device and method for inspecting elevator rope
EP3715815A1 (en) 2019-04-08 2020-09-30 Airbus Defence And Space, S.A.U. System and method for monitoring the degradation status of refueling hoses
WO2021032903A1 (en) 2019-08-16 2021-02-25 Kone Corporation Elevator rope monitoring device, a method and a computer program product thereto, and an elevator system
CN114072346A (en) * 2019-08-16 2022-02-18 通力股份公司 Elevator rope monitoring device, method and computer program product and elevator system
WO2022248742A1 (en) 2021-05-24 2022-12-01 Quandum Aerospace S.L. System for positioning image sensors and electromagnetic radiation emitters for inspection of refueling hoses with transverse, pitch and longitudinal movements and inspection procedure

Also Published As

Publication number Publication date
DE112017006030T5 (en) 2019-08-29
JP2018087063A (en) 2018-06-07
CN110267901B (en) 2021-07-09
US11975946B2 (en) 2024-05-07
JP6815174B2 (en) 2021-01-20
US20190322489A1 (en) 2019-10-24
CN110267901A (en) 2019-09-20

Similar Documents

Publication Publication Date Title
US11975946B2 (en) Elevator rope monitoring device and elevator rope monitoring method
US9677879B2 (en) Tire appearance inspection apparatus and method
EP2687814B1 (en) Tire shape testing device and tire shape testing method
US10366484B2 (en) Inspection method, inspection apparatus, processing apparatus, and recording medium for detecting defects of a work
JP5689969B2 (en) Bead filler inspection apparatus, bead filler inspection program, and bead filler inspection method
EP1985966A1 (en) Apparatus and method for checking threaded elements
US10076885B2 (en) Joining state determination method and molding device
JP2007292699A (en) Surface inspection method of member
JP2016035405A (en) Image inspection device, image inspection system, and image inspection method
JP2016206071A (en) Inspection device and inspection method
KR101061504B1 (en) Tire semi-finished product inspection device and method
US20220114715A1 (en) Methods, systems, and devices for monitoring a web of material translating along a travel path
JP5674581B2 (en) Inspection apparatus and inspection method
KR20190079317A (en) Machine vision inspection device and product inspection method using machine vision
US20120147177A1 (en) Web monitoring system
JP2001174414A (en) Standard plate, and method and apparatus for adjusting surface inspection apparatus
KR102161160B1 (en) Method of inspecting a surface of a substrate and apparatus for performing the same
KR20150065648A (en) A nondestructive inspection system railway rails and inspection method thereof using an electromagnetic induction sensor
JP6597691B2 (en) Surface defect inspection method and surface defect inspection system
KR20150022359A (en) Inspection-Object Location estimation device using multi camera.
JP2021020791A (en) Elevator rope inspection device and elevator rope inspection method
KR20200062081A (en) How to inspect the optical display panel for damage
JP2019151472A (en) Handrail inspection device for passenger conveyor and handrail inspection method thereof
JP5801098B2 (en) Winding inspection apparatus and inspection method for metal can end
KR101255067B1 (en) Inspection equipment and method using the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17817203

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17817203

Country of ref document: EP

Kind code of ref document: A1