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1. 发明申请

US20190075539A1 METHOD AND DEVICE FOR HIGH-PRECISION DETERMINATION OF A MOBILE DEVICE AND METHOD FOR LOCATING OR POSITIONING STATIONARY DEVICES 审中-公开
公开(公告)号：US20190075539A1
公开(公告)日：2019-03-07
申请号：US15780337
申请日：2016-12-08
申请人： SCHNEIDER ELECTRIC INDUSTRIES SAS
发明人： Marcus ZINN
IPC分类号： H04W64/00 , G01S5/00 , G01C25/00 , H04W4/80
CPC分类号： H04W64/003 , G01C25/005 , G01S5/0054 , G01S5/009 , G01S5/02 , G01S5/0263 , H04W4/80
摘要： A method and a device for high-precision position determination of a mobile device by means of wireless communication, wherein wireless communication is established between at least one first antenna of a calibration device and a second antenna of a mobile device when the antennae are in proximity to one another, to transmit position data to the mobile device. A housing section of the mobile device is fixed in a reference position relative to the calibration device using a position-fixing element, and in that the position data for the reference position, as the current position of the housing section of the mobile device, are transmitted via the wireless communication between the at least one first antenna, and the second antenna, and in that an inertial navigation unit is calibrated with respect to the current position.

2. 发明申请

US20190056426A1 SYSTEMS AND METHODS FOR ESTIMATING ERRORS IN GYROSCOPE SENSORS 审中-公开
公开(公告)号：US20190056426A1
公开(公告)日：2019-02-21
申请号：US15935731
申请日：2018-03-26
申请人： TATA CONSULTANCY SERVICES LIMITED
发明人： Vivek Chandel , Kartik Muralidharan , Avik Ghose , Archan Misra
IPC分类号： G01P21/00 , G01P3/44 , G01C19/5776
CPC分类号： G01P21/00 , G01C19/00 , G01C19/5776 , G01C25/005 , G01P3/44
摘要： Embodiments of the present disclosure provide systems and methods that establish non-linear components of gyroscope errors which have not been studied or explored earlier. These errors include but are not limited to non-linear dynamic error which is a function of the angular velocity itself. Bias instability has been observed within the same environment of temperature and atmospheric pressure. In other words, the embodiments of the present disclosure analyse and models static bias errors and dynamic non-linear errors in the gyroscope sensor which may be used to model and correct errors accordingly In subsequent measurements. The system provide solution(s) when there is no way of directly estimating temperature for bias correction of gyroscope, by estimating a temperature change by considering indirect measurements from other sensors present onboard the device.

3. 发明申请

US20180335857A1 PHYSICAL ORIENTATION CALIBRATION FOR MOTION AND GESTURE-BASED INTERACTIVE SEQUENCE ACTIVATION 审中-公开
公开(公告)号：US20180335857A1
公开(公告)日：2018-11-22
申请号：US16048839
申请日：2018-07-30
申请人： Adtile Technologies Inc.
发明人： NILS FORSBLOM
IPC分类号： G06F3/0346 , G06T11/60 , G01C25/00 , G06F3/01
CPC分类号： G06Q30/0241 , G01C25/005 , G06F1/1626 , G06F1/1694 , G06F2200/1637
摘要： The presentation of interaction sequences to a user on a mobile communications device is disclosed. A first external input corresponding to a triggering of an interaction sequence delivery is received on a first input modality. An overlay is displayed in a graphical user interface in response to receiving the external input. Interaction sequence invocation instructions are displayed within the overlay. A second external input is received on a second input modality different from the first input modality. The second external input is translated to a set of quantified values. An interaction sequence results content is then displayed within the overlay in response to a substantial match between the set of quantified values translated from the received second external input to the set of predefined values corresponding to the interaction sequence invocation instructions.

4. 发明申请

US20180313868A1 CALIBRATING SENSOR UNIT ORIENTATION FOR USE IN A VEHICLE MONITORING SYSTEM 审中-公开
公开(公告)号：US20180313868A1
公开(公告)日：2018-11-01
申请号：US15906977
申请日：2018-02-27
申请人： SmartDrive Systems, Inc.
发明人： Slaven Sljivar , David Forney , Mark Freitas , Daniel A. Deninger , Jeffrey Griswold , Jason Palmer
IPC分类号： G01P21/00 , G01P15/18 , G01P1/04 , G01P21/02
CPC分类号： G01P21/00 , G01C25/00 , G01C25/005 , G01P1/04 , G01P15/18 , G01P21/02
摘要： This disclosure relates to a system and method for calibrating sensors upon installation in a vehicle. The system includes a sensor set configured to generate output signals conveying vectors of acceleration of the vehicle. The system determines a three-dimensional orientation of the sensor set in relation to the vehicle. The system converts output signals from the sensor set into vectors of acceleration of the vehicle.

5. 发明申请

US20180292212A1 NAVIGATION SYSTEM UTILIZING YAW RATE CONSTRAINT DURING INERTIAL DEAD RECKONING 审中-公开
公开(公告)号：US20180292212A1
公开(公告)日：2018-10-11
申请号：US15479875
申请日：2017-04-05
申请人： NovAtel Inc.
发明人： Michael Bobye
IPC分类号： G01C21/18 , G01C25/00 , G01S19/47
CPC分类号： G01C21/18 , G01C21/165 , G01C25/005 , G01S5/00 , G01S19/47
摘要： A system operating in a dead reckoning mode accumulates relative yaw measurements, i.e., measurements of rotation about a z-axis, made by one or more over mechanization update intervals and produces dead reckoning mechanization update values. The system accumulates the values over a turn rate accumulation period, calculates a yaw rate and determines if the yaw rate exceeds a turn rate threshold. If so, the system directs an INS filter to perform a zero yaw rate update at the start of a next mechanization update interval, to correct for the z-axis drift errors of the gyroscopes based on the sensed rotation in the relative yaw measurements over the previous mechanization update interval. The system then sets the z-axis drift errors to zero. If the system determines that the yaw rate exceeds the turn rate threshold, the zero yaw rate update is not performed at the start of the next mechanization update interval.

6. 发明申请

US20180274941A1 COMPENSATED DEMODULATOR FOR IN-PHASE AND QUADRATURE MODULATED SIGNALS, MEMS GYROSCOPE INCLUDING THE SAME AND DEMODULATION METHOD 审中-公开
公开(公告)号：US20180274941A1
公开(公告)日：2018-09-27
申请号：US15919882
申请日：2018-03-13
申请人： STMicroelectronics S.r.l.
发明人： Matteo Quartiroli , Alessandro Mecchia , Paolo Pesenti , Stefano Facchinetti , Andrea Donadel
IPC分类号： G01C25/00 , G01C19/5776
CPC分类号： G01C25/005 , G01C19/5776
摘要： A demodulator for demodulating the in-phase component of an input signal which is in-phase and quadrature modulated. The demodulator includes a register storing a phase calibration value and a temperature sensor that performs a plurality of temperature sensings. A compensating stage generates for each temperature sensed a corresponding first sample on the basis of the difference between the sensed temperature and a calibration temperature and a compensation function indicative of a relationship existing between the phase of the input signal and the temperature. A combination stage generates a plurality of second samples, each second sample being a function of the phase calibration value and a corresponding first sample. A generating stage generates a demodulating signal having a phase which depends on the second samples and a demodulating stage demodulates the input signal by means of the demodulating signal.

7. 发明申请

US20180274940A1 A METHOD FOR INITIAL ALIGNMENT OF AN INERTIAL NAVIGATION APPARATUS 审中-公开
公开(公告)号：US20180274940A1
公开(公告)日：2018-09-27
申请号：US15542442
申请日：2016-07-04
申请人： SHANGHAI HUACE NAVIGATION TECHNOLOGY LTD
发明人： Qiang REN , Jiejun WANG , Xuefeng SHEN , Lilong WEI , Guiyan CUI
IPC分类号： G01C25/00 , G01C21/16
CPC分类号： G01C25/005 , G01C21/16 , G01C25/00
摘要： A method for initial alignment of an inertial navigation apparatus, comprising the following steps: providing an apparatus loaded with a sensor, and preprocessing the sensor; carrying out relative alignment to calculate an installation error angle of the sensor; carrying out absolute alignment to calculate an installation attitude angle error of the sensor to increase an accuracy of an error attitude angle calculated during the relative alignment. The relative alignment process calculates a relative error attitude angle, the relative error attitude angle being used as the initial value for attitude error in a stat vector in the absolute alignment process, thereby accelerating convergence of the Kalman filter. Alignment precision is further enhanced by the absolute alignment process.

8. 发明申请

US20180266847A1 INERTIAL SENSOR DATA CORRECTION 审中-公开
公开(公告)号：US20180266847A1
公开(公告)日：2018-09-20
申请号：US15758434
申请日：2016-09-09
申请人： BAE SYSTEMS PLC
发明人： Simon TRYTHALL , John Richard WILLIAMS , Peter Michael KNIGHT
IPC分类号： G01C25/00
CPC分类号： G01C25/005 , G02B27/017 , G02B27/0179 , G02B2027/0187
摘要： A method is provided for determining corrections to rate data output by inertial sensors of a type typically used in tracking changes in orientation of an object. The present invention also extends to a tracker system incorporating the correction functionality of the present invention. The method makes use of rate data output by inertial sensors associated with the object being tracked and rate data derived from measures of orientation supplied by a non-inertial tracker system also associated with the object being tracked and comprises determining from those rate data corrections for errors due to misalignment in rate data output by inertial sensors, by calculating a mapping between vectors linking points in inertial sensor rate space represented by a sample set of received rate data from the inertial sensors and vectors linking points in a derived object orientation rate space represented by a corresponding and synchronised sample set of derived rate data. Corrections for inertial sensor bias may be determined separately from corrections for misalignment-related errors, after correction of inertial sensor rate data for misalignment-related errors by determining the vector translation between a point represented by corrected inertial sensor rate data in the derived object orientation rate space and the point in the same rate space represented by derived rate data synchronised therewith.

9. 发明申请

US20180245946A1 CALIBRATION SYSTEM AND METHOD FOR WHOLE ANGLE GYROSCOPE 审中-公开
公开(公告)号：US20180245946A1
公开(公告)日：2018-08-30
申请号：US15906177
申请日：2018-02-27
申请人： THE CHARLES STARK DRAPER LABORATORY, INC.
发明人： Marc Steven Weinberg , Ralph Cohn , Eugene H. Cook
IPC分类号： G01C25/00 , G01C19/5776
CPC分类号： G01C25/00 , G01C19/5684 , G01C19/5776 , G01C25/005
摘要： According to one aspect, embodiments herein provide a whole angle gyroscope comprising a central point, at least one mass arranged symmetrically about the central point, a plurality of transducers, each configured to perform at least one of driving and sensing motion of the at least one mass, and a processor coupled to the plurality of transducers, the processor configured to operate the plurality of transducers to drive the at least one mass in at least a first vibratory mode and a second vibratory mode, identify a rate dead zone of the whole angle gyroscope, and operate the plurality of transducers to apply a force to the at least one mass to reduce the identified rate dead zone of the whole angle gyroscope.

10. 发明申请

US20180195878A1 INERTIAL MEASUREMENT SYSTEM FOR AN AIRCRAFT 有权
公开(公告)号：US20180195878A1
公开(公告)日：2018-07-12
申请号：US15737660
申请日：2016-06-14
申请人： SAFRAN ELECTRONICS & DEFENSE
发明人： David ROBERFROID , Jean-Francois KIEFER
IPC分类号： G01C25/00 , G01C21/16
CPC分类号： G01C25/005 , G01C21/16
摘要： An inertial measurement system for aircraft, the system comprising at least one processor unit connected to at least two inertial units, namely at least one inertial unit of a first type having at least three angular sensors and three linear sensors aligned on three substantially distinct sensing axes, and an inertial unit of a second type comprising at least four angular sensors and four linear sensors aligned on four substantially distinct sensing axes. The system is arranged to calculate one piece of inertial data from the six sensors of the inertial unit of the first type and four pieces of inertial data from four distinct combinations of three angular sensors and three linear sensors selected from the sensors of the inertial unit of the second type, and the processor unit is arranged to compare the four pieces of inertial data from the measurements of the inertial unit of the second type with one another so as to determine whether the inertial unit of the second type has failed.

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