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公开(公告)号：US11465879B2
公开(公告)日：2022-10-11
申请号：US16477734
申请日：2018-01-23
Applicant: Nippon Otis Elevator Company , Meidensha Corporation
Inventor： Mitsuru Kato , Hirotomo Tanaka , Takashi Takeuchi , Ryuji Onoda , Yusuke Watabe , Yoshiki Nota , Kazuaki Chida
Abstract: During a maintenance inspection, an optical rope diameter measuring device is provided at a predetermined position along a path of a wire rope, rope diameter is measured at multiple measuring points while the elevator is driven in test mode, and diameter reduction at each measuring point is determined and stored as a first diameter reduction (S2_S6). During a subsequent maintenance inspection, rope diameter is similarly measured at each measuring point to determine diameter reduction constituting a second diameter reduction (S7_S11). Based on these two diameter reductions, the time at which diameter reduction will reach a predetermined threshold value is predicted for each measuring point, and the earliest time is displayed as a rope replacement time (S12_S14).
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公开(公告)号：US20180105393A1
公开(公告)日：2018-04-19
申请号：US15297415
申请日：2016-10-19
Applicant: Otis Elevator Company
Inventor： Hiromitsu Miyajima , Ryuji Onoda , Takashi Takeuchi , Mitsuru Kato , Hirotomo Tanaka
IPC: B66B7/12 , G01N21/952 , G01N21/88
CPC classification number: B66B7/1238 , B66B7/1215 , G01N21/8851 , G01N21/952
Abstract: An automatic marking system (8) is provided which comprises a rope inspecting device (10) including a camera (15) and an image processor (14) and a rope marking device (17) for providing a mark on the rope in response to the image processor (14) detecting a defect on the rope. The mark distinguishes the type or level of the defect. The rope may be a hoisting rope (3) of an elevator device. The defect may include at least one of reduced diameter, rust, wire brakeage and strand brakeage of the hoisting rope (3).
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公开(公告)号：US11975946B2
公开(公告)日：2024-05-07
申请号：US16465007
申请日：2017-11-29
Applicant: Meidensha Corporation , Otis Elevator Company
Inventor： Yusuke Watabe , Makoto Niwakawa , Mitsuru Kato , Ryuji Onoda , Hirotomo Tanaka , Takashi Takeuchi
CPC classification number: B66B7/1238 , B66B5/0031 , B66B5/02
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.
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Patent Agency Ranking
公开(公告)号：US11198586B2
公开(公告)日：2021-12-14
申请号：US16502642
申请日：2019-07-03
Applicant: Otis Elevator Company
Inventor： Jiro Murata , Takashi Takeuchi
Abstract: A method of measuring braking deceleration of an elevator based on a video of a motion of a hoisting machine taken by a mobile device, the motion of the hoisting machine including a motion of a brake and a motion of a traction sheave, the method including capturing the video, processing the video, and calculating a braking deceleration of the elevator based on the processed video.
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公开(公告)号：US20210002100A1
公开(公告)日：2021-01-07
申请号：US16502642
申请日：2019-07-03
Applicant: Otis Elevator Company
Inventor： Jiro Murata , Takashi Takeuchi
Abstract: A method of measuring braking deceleration of an elevator based on a video of a motion of a hoisting machine taken by a mobile device, the motion of the hoisting machine including a motion of a brake and a motion of a traction sheave, the method including capturing the video, processing the video, and calculating a braking deceleration of the elevator based on the processed video.
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公开(公告)号：US20200003549A1
公开(公告)日：2020-01-02
申请号：US16465033
申请日：2017-11-29
Applicant: Meidensha Corporation , Otis Elevator Company
Inventor： Yoshiki Nota , Yusuke Watabe , Mitsuru Kato , Ryuji Onoda , Hirotomo Tanaka , Takashi Takeuchi
IPC: G01B11/08 , G01B11/25 , G01B11/245
Abstract: A wired-rope measuring device, provided with two cameras 1, 2 that shoot one or no less than two wired ropes 8 from different directions and an analyzing device 5 that analyzes image data that is an image shot by the two cameras 1, 2, wherein the analyzing device 5 applies the principle of triangulation by a stereo method to the image data to seek a center coordinate P0 of the wired rope 8 relative to the cameras 1, 2 and volumetric anamorphosis is corrected when calculating a diameter D of the wired rope 8 based on the center coordinate P0 of the wired rope 8.
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公开(公告)号：US20190322489A1
公开(公告)日：2019-10-24
申请号：US16465007
申请日：2017-11-29
Applicant: Meidensha Corporation , OTIS ELEVATOR COMPANY
Inventor： Yusuke Watabe , Makoto Niwakawa , Mitsuru Kato , Ryuji Onoda , Hirotomo Tanaka , Takashi Takeuchi
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.
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公开(公告)号：US10684120B2
公开(公告)日：2020-06-16
申请号：US16465033
申请日：2017-11-29
Applicant: Meidensha Corporation , Otis Elevator Company
Inventor： Yoshiki Nota , Yusuke Watabe , Mitsuru Kato , Ryuji Onoda , Hirotomo Tanaka , Takashi Takeuchi
IPC: G01B11/08 , G01B11/245 , G01B11/25
Abstract: A wired-rope measuring device, provided with two cameras 1, 2 that shoot one or no less than two wired ropes 8 from different directions and an analyzing device 5 that analyzes image data that is an image shot by the two cameras 1, 2, wherein the analyzing device 5 applies the principle of triangulation by a stereo method to the image data to seek a center coordinate P0 of the wired rope 8 relative to the cameras 1, 2 and volumetric anamorphosis is corrected when calculating a diameter D of the wired rope 8 based on the center coordinate P0 of the wired rope 8.
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