Object pose measurement system based on MEMS IMU and method thereof

    公开(公告)号:US10299731B2

    公开(公告)日:2019-05-28

    申请号:US15586342

    申请日:2017-05-04

    摘要: An object pose measurement system based on MEMS IMU includes: an accelerometer, a magnetometer, a gyroscope, an object vector information calculation unit, and a rotation compensation unit; wherein the object vector information calculation unit is connected respectively to the accelerometer, magnetometer, gyroscope to receive respective measurement data and calculate object vector information; the rotation compensation unit is connected to the object vector information calculation unit to receive the object vector information, compute and output rotation compensated object vector information; wherein the rotation compensation unit performs quaternion rotation compensation computation and outputs the rotation compensated quaternion as the rotation compensated object vector information.

    Use of offline algorithm to determine location from previous sensor data when location is requested

    公开(公告)号:US10209062B1

    公开(公告)日:2019-02-19

    申请号:US14815460

    申请日:2015-07-31

    申请人: Google LLC

    发明人: Etienne Le Grand

    IPC分类号: G01B21/00 G01C19/00

    摘要: Examples describe systems and methods for iteratively determining a signal strength map for a wireless access point (AP) aligned to position coordinates. An example method includes receiving logs of data from devices. For a plurality of iterations, the method includes selecting a set of logs of data having an amount of GPS being less than a given amount of GPS in a previously selected set, determining estimates of signal strength maps for the wireless AP aligned to position coordinates based on the selected set and on given signal strength maps due to a previous iteration, and performing a simultaneous localization and mapping (SLAM) optimization of the possible locations of the wireless AP based on the given signal strength maps and the estimates of the signal strength maps. Based on the iterative optimizations, an output signal strength map is provided for the wireless AP aligned to position coordinates.

    Detection and evaluation of task performance with a handheld tool

    公开(公告)号:US10159432B1

    公开(公告)日:2018-12-25

    申请号:US14746649

    申请日:2015-06-22

    摘要: Techniques and methods for evaluating an instance of a pre-defined task being performed by a user with a handheld tool. In an embodiment, measurement information is stored to a log based on sensor data generated during motion of the handheld tool. Based on a definition of a task and the logged measurement information, a determination is made as to whether the sensed motion corresponds to a performance of at least some action of the defined task. In another embodiment, the definition of the task includes or otherwise corresponds to criteria information. The performance of the task is evaluated based on the criteria information to detect bradykinesia or some other unintentional muscle performance of the user.

    MOTION DETECTION DEVICE AND THREE-DIMENSIONAL SHAPE MEASUREMENT DEVICE USING SAME

    公开(公告)号:US20180283851A1

    公开(公告)日:2018-10-04

    申请号:US15756959

    申请日:2016-08-26

    摘要: The present invention relates to technology for detecting three-dimensional motion of an object in a non-contact manner, at high speed, and with comparatively high precision. A speed detection section 11 detects speed of an object using a first laser beam 111 that is irradiated towards an object 100, and is reflected by the object 100. A distance detection section 12 detects speed of the object 100 using a second laser beam 121 that is irradiated towards the object 100, and is reflected by the object 100. The second laser beam 121 is configured to be irradiated at substantially the same time and to substantially the same position as the first laser beam 111. A motion calculation section 13 calculates motion of the object 100 using information on orientation of the first and second laser beams, the speed, and the distance.

    METHOD OF INSPECTING A CAST PRODUCT
    26.
    发明申请

    公开(公告)号:US20180274911A1

    公开(公告)日:2018-09-27

    申请号:US15468193

    申请日:2017-03-24

    IPC分类号: G01B21/00 F16M11/22

    摘要: A product inspection method comprises removably mounting the product on a support member and contacting a non-load bearing position indicator with the product. The position indicator includes (i) a first portion with an indicator surface defined with respect to an indicator reference point to contact a product reference surface on the product and (ii) a second portion detectable by a coordinate measuring device. The coordinate measuring device scans the position indicator to determine coordinates of the second portion. The contact reference point's coordinates are calculated based on the second portion's coordinates and a predetermined distance between the indicator reference point and the second portion. The coordinate measuring device scans the product to determine coordinates of a portion of the product's exterior surface based on the calculated coordinates of the indicator reference point. The exterior surface coordinates are compared to coordinates of a corresponding portion of an ideal product's surface.

    METHOD AND SYSTEM FOR INTEGRATED MANUFACTURING PRODUCTION QUALITY INSPECTIONS

    公开(公告)号:US20180267500A1

    公开(公告)日:2018-09-20

    申请号:US15982638

    申请日:2018-05-17

    发明人: Jeffery Neal Cope

    摘要: A system and computer-implemented method comprising receiving at a memory device a manufacturing process plan having a plurality of operating steps including data from a bill of specification including manufacturing process step requirements for a manufactured product and data from a bill of characteristics including dimensions and tolerances for the manufactured product where the system or method extract data via a processor executing instructions from both the bill of specification and the bill of characteristics relating to inspection of the manufactured product and define a job to produce the manufactured product wherein the job includes assigning an identification number, specifying the product to be manufactured, identifying the quantity to be made, and identifying the number of manufactured products to be inspected. The system or method further group manufacturing dimensions extracted from the bill of characteristics by operating step in manufacturing process plan and populate a browser-based inspection screen to be viewed by an operator including inspection requirements specific to the operating step to be performed by the operator.