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公开(公告)号：US20240133681A1
公开(公告)日：2024-04-25
申请号：US18530359
申请日：2023-12-06
Applicant: NORTHWEST INSTRUMENT INC.
Inventor： Xin SHI , David XING
IPC: G01B11/26
CPC classification number: G01B11/26
Abstract: A device for calibrating a laser level includes a base platform, a target, and an image recognition device. The base platform is configured to support the laser level that is to be mounted on the base platform at a first position. The target is arranged at a second position of the base platform and configured to receive a laser. The image recognition device is configured to obtain images of lasers projected on the target before and after the laser level rotates a first angle, determine, based on an image recognition result of the images, positions of the lasers emitted by the laser level to determine a deviation distance, and determine whether the laser level needs to be calibrated based on the deviation distance. The deviation distance is determined by position data of the first position and the second position, and the first angle.
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公开(公告)号：US11946780B2
公开(公告)日：2024-04-02
申请号：US17337918
申请日：2021-06-03
Applicant: CANON KABUSHIKI KAISHA
Inventor： Chihiro Nagura , Takanori Uemura
Abstract: A scale includes a diffraction grating configured to condense diffracted light in a periodic direction of the diffraction grating in order to detect a reference position. A light receiving element array is configured to receive light from the diffraction grating. The light receiving element array includes first to fourth light receiving elements configured to output signals having phases different from each other. The first light receiving element and the second light receiving element are adjacent to each other and are arranged between the third light receiving element and the fourth light receiving element. The processing unit generates a signal representing the reference position based on a differential signal between a signal from the first light receiving element and a signal from the third light receiving element and a differential signal between a signal from the second light receiving element and a signal from the fourth light receiving element.
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公开(公告)号：US11922644B2
公开(公告)日：2024-03-05
申请号：US17669787
申请日：2022-02-11
Applicant: Illinois Tool Works Inc.
Inventor： William Joshua Becker , Brett Sheleski
CPC classification number: G06T7/292 , G01B11/14 , G01B11/26 , G06Q10/06398 , G06T7/246 , G06T7/73 , G06T7/80 , G06T2207/30108 , G06T2207/30204 , G06T2207/30244
Abstract: Described herein are examples of weld tracking systems implemented via a welding helmet. The welding helmet includes weld tracking sensors configured to allow the welding helmet to track a welding-type tool and/or an arc generated by the welding-type tool. The welding helmet also includes helmet tracking sensors configured to allow the welding helmet to track its own position and/or orientation relative to a reference point in the welding environment. By tracking itself as well as the welding-type tool and/or arc, the welding helmet can differentiate between its own movement, and movement of the welding-type tool and/or arc. By knowing the spatial relationship between the different sensors of the welding helmet, the tracking information can be combined and used for weld tracking. By implementing the weld tracking system in the welding helmet, the weld tracking system becomes portable and usable outside of the usual fixed confines of weld tracking systems.
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公开(公告)号：US11919158B2
公开(公告)日：2024-03-05
申请号：US17040695
申请日：2019-03-28
Applicant: TOKYO ROBOTICS INC.
Inventor： Yuki Matsuo , Yoshihiro Sakamoto
CPC classification number: B25J9/1025 , B25J9/108 , B25J13/088 , B25J17/00 , B25J19/0004 , G01B7/30 , G01B11/26 , G01D5/145 , G01D5/26
Abstract: A joint unit that is reduced in size including a plurality of angle detection mechanisms. A joint unit including an input-side support member for a rotationally driven input shaft, a decelerator that decelerates the input shaft to provide a deceleration output shaft, an output rotating body coupled to the deceleration output shaft including a strain generating portion that generates strain due to rotation transmitted by the deceleration output shaft, and an associated rotating body that is coupled to a output-side portion of the strain generating portion of the output rotating body to rotate together with the output rotating body disposed in a space between the input-side support member and an input-side portion of the strain generating portion of the output rotating body.
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公开(公告)号：US11906290B2
公开(公告)日：2024-02-20
申请号：US17572218
申请日：2022-01-10
Applicant: May Patents Ltd.
Inventor： Yehuda Binder
CPC classification number: G01B11/26 , G01B11/026 , G01B15/00 , G01S13/878 , G01S15/08 , G01S15/42 , G01S17/08 , G01S2013/468
Abstract: A method and apparatus for an angle meter cooperatively using two or more non-contact distance meters for measuring distances to a surface along substantially parallel lines. The measured distances are used for estimating or calculating the angle to the surface and the distance to the surface. The distance meters may use optical means, where a visible or non-visible light or laser beam is emitted and received, acoustical means, where an audible or ultrasound sound is emitted and received, or an electro-magnetic scheme, where radar beam is transmitted and received. The distances may be estimated using a Time-of-Flight (TOF), homodyne or heterodyne phase detection schemes. The distance meters may share the same correlator, signal conditioning circuits, or the same sensor. Two or more angle meters may be used defining parallel or perpendicular measurement planes, for measuring angles between surfaces, and for estimating physical dimensions such as length, area or volume.
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Patent Agency Ranking
26.发明授权公开(公告)号：US11866033B2
公开(公告)日：2024-01-09
申请号：US17828234
申请日：2022-05-31
Applicant: Volvo Truck Corporation
Inventor： Daniel Persson
IPC: B60W30/045 , B60W40/12 , G01B11/04 , G01B11/26
CPC classification number: B60W30/045 , B60W40/12 , G01B11/043 , G01B11/26 , B60W2300/145 , B60W2420/42 , B60W2520/22 , B60W2530/201 , B60W2540/18 , B60W2720/22
Abstract: A method for estimating an effective length of a first vehicle segment of a vehicle combination, the vehicle combination comprising a towing vehicle which is connected to the first vehicle segment via a first articulation joint and a perception sensor mounted on one of the towing vehicle and the first vehicle segment and arranged to obtain an image of the other one of the towing vehicle and the first vehicle segment; the method comprising identifying that the vehicle combination is provided in a first steady vehicle state, identifying that a turning and driving manoeuvre is initiated, identifying when the vehicle combination reaches a second steady vehicle state, determining a time period required for driving the vehicle combination from the first steady vehicle state to the second steady vehicle state, and estimating the effective length by use of the time period, the specific angular change, and the specific speed.
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公开(公告)号：US11835332B2
公开(公告)日：2023-12-05
申请号：US16338138
申请日：2017-09-29
Applicant: DÜRR Assembly Products GmbH
Inventor： Stefan Müller , Rainer Weisgerber , Ismail Kurt , Thomas Tentrup
CPC classification number: G01B11/26 , G01C9/06 , G01M17/06 , G01C2009/066
Abstract: A device for detecting a steering wheel position, the steering wheel angle and/or the inclination of the steering wheel (304) of a vehicle is disclosed. The device includes at least two cameras (5, 6; 202, 203) by means of which the steering wheel (304) can be sensed (8, 9; 204, 205). At least three reference objects (301, 302, 303) are provided which can be releasably fastened to the steering wheel (304).
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公开(公告)号：US20230349109A1
公开(公告)日：2023-11-02
申请号：US17660839
申请日：2022-04-27
Applicant: Caterpillar Paving Products Inc.
Inventor： Paul Joseph Koenen , Garrett Daniel Reed
IPC: E01C23/088 , G01B11/26
CPC classification number: E01C23/088 , G01B11/26
Abstract: A system for controlling an alignment of a first machine with respect to a second machine. The system includes a projector mounted on the second machine. The projector is configured to project one or more light beams. The system further includes an image capturing device configured to capture one or more images of the first machine and the one or more light beams. The system further includes a controller configured to determine a position of the first machine with respect to the one or more light beams based on the one or more images and generate an alert when one or more characteristics of the one or more light beams shifts from a first condition to a second condition.
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公开(公告)号：US11802762B2
公开(公告)日：2023-10-31
申请号：US17572163
申请日：2022-01-10
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Huai Huang , Wei Ren , Peng Wang
CPC classification number: G01B11/26 , B23K26/032 , B23K26/009
Abstract: A laser-based measurement device includes a laser transmitter; a laser receiver; an optical device configured to guide a laser beam emitted by the laser transmitter out of the laser-based measurement device and guide the laser beam reflected by an external environment in the laser receiver; and a driving device including a first magnetic member connected to the optical device and a second magnetic member. The driving device is configured to drive the optical device to vibrate through interaction between the first magnetic member and the second magnetic member, to change a guiding direction of the laser beam passing through the optical device.
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公开(公告)号：US11789281B2
公开(公告)日：2023-10-17
申请号：US17052042
申请日：2019-05-02
Applicant: CERN , Ustav fyziky plazmatu AV CR, v.v.i
Inventor： Miroslav Sulc , Jean-Christophe Gayde
CPC classification number: G02B27/0927 , G01B11/26 , G02B27/0966
Abstract: An optical system for producing a structured optical beam including a convex lens having a spherical or cylindrical entry surface, an electromagnetic radiation source configured to provide a substantially coherent beam of electromagnetic radiation, and a focusing element arranged along the optical axis of the optical system. The electromagnetic radiation source is arranged to produce an illuminating beam which illuminates the convex lens over a selected illumination fraction of the spherical or cylindrical entry surface and with a corresponding selected focus of the illuminating beam such that the beam traverses a sufficient refractive volume of the convex lens to produce aberrations in the beam emerging from the convex lens such that it comprises a structured optical beam. The system and method allows for generating a structured beam which can propagate over the large distances while maintaining a well-defined cross-section intensity distribution.
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