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公开(公告)号：US11079236B2
公开(公告)日：2021-08-03
申请号：US16349032
申请日：2017-11-09
发明人： Christian Merfels , Thorsten Hehn , Marcel Geppert
IPC分类号： G01S19/49 , G01C21/16 , G01S13/86 , G01S19/41 , G01S13/931 , G01S19/48 , G01S19/40 , G01S7/48 , G01S17/86 , G01S17/931
摘要： The present invention relates to a method for estimating an individual position. In order to improve the estimation of the individual position of a vehicle, for example, at least one first position measurement is carried out by a first positioning system and at least one second position measurement is carried out by at least one second positioning system. A third position measurement is also carried out by the first positioning system. The third position measurement is carried out after the first and second position measurements. The individual position is estimated on the basis of at least the third position measurement and at least one position error value. The position error value is determined on the basis of the at least one first position measurement and the at least one second position measurement.
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公开(公告)号：US20210223408A1
公开(公告)日：2021-07-22
申请号：US16300963
申请日：2017-12-25
发明人： HANXIN CHEN , ZEJUN XIANG , CHUAN LONG , JING MING , YONGGANG GOU , NAN LV , HAN CHEN , ZAIQIAN LUO , FENG LI , ZHI HUANG , XIAOLIN HU
摘要： The present invention provides a point cloud data acquisition method and device under a situation of no GNSS signal. The method comprises: re-sampling line data acquired from a topographic map to obtain discrete line data; generating a full-second PPS pulse in a simulating manner; counting by using a distance measuring instrument, sampling the count, when it is detected that the full-second PPS pulse is received, calculating position information at a current moment; simulating a GNSS satellite protocol according to the position information at the current moment; parsing the GNSS satellite protocol by using a point cloud data acquisition module to complete time synchronization, and controlling a LiDAR to acquire point cloud data; parsing the GNSS satellite protocol by using an inertial measurement module, and recording attitude determination positioning data in real time to generate POS data; and optimizing the POS data to obtain accurate point cloud data.
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公开(公告)号：US11042672B2
公开(公告)日：2021-06-22
申请号：US17062663
申请日：2020-10-05
申请人： Middle Chart, LLC
摘要： Methods and apparatus for improving the provision of a healthcare procedure based upon automated determination of a location of healthcare agents and equipment during a healthcare procedure and quantifying conditions in an environment via automated sensors. The present invention provides apparatus and methods for wireless designation of a position of health care providers and equipment relative to each other based upon wireless communications amongst multiple wireless transceivers combined with ongoing monitoring of conditions present in a healthcare facility. A user interface may provide a augmented reality view of positions of all or some the healthcare providers and equipment and condition quantifying sensors.
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公开(公告)号：US11035673B2
公开(公告)日：2021-06-15
申请号：US15894841
申请日：2018-02-12
摘要： A method and system for combining data obtained by sensors, having particular application in the field of navigation systems, are disclosed. The techniques provide significant improvement over state-of-the-art Markovian methods that use statistical noise filters such as Kalman filters to filter data by comparing instantaneous data with the corresponding instantaneous estimates from a model. In contrast, the techniques disclosed herein use multiple time periods of various lengths to process multiple sensor data streams, in order to combine sensor measurements with motion models at a given time epoch with greater confidence and accuracy than is possible with traditional “single epoch” methods. The techniques provide particular benefit when the first and/or second sensors are low-cost sensors (for example as seen in smart phones) which are typically of low quality and have large inherent biases.
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公开(公告)号：US20210173095A1
公开(公告)日：2021-06-10
申请号：US17113931
申请日：2020-12-07
发明人： Young Su KANG
摘要： The present disclosure relates to a location measurement method using a processor. The location measurement method includes: acquiring a surrounding image photographed by an electronic device; acquiring first location information of the electronic device using a global navigation satellite system; and acquiring second location information obtained by correcting the first location information using the surrounding image photographed by the electronic device, in which a correction value for correction from the first location information to the second location information is calculated by detection of an image including a static object included in the photographed surrounding image from a pre-stored real-world image map.
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公开(公告)号：US11002859B1
公开(公告)日：2021-05-11
申请号：US17089742
申请日：2020-11-05
申请人： Tsinghua University
发明人： Xinyu Zhang , Jun Li , Shichun Guo , Huaping Liu , Mo Zhou , Wenju Gao
IPC分类号： G01S17/00 , G01S13/00 , G05D1/02 , H01Q1/00 , G01S19/00 , G01S19/39 , G01S19/24 , G01S19/48 , G06K9/62 , G06K9/00 , B60W60/00
摘要： An intelligent vehicle positioning method based on feature point calibration is provided. The intelligent vehicle positioning method includes: determining whether an intelligent vehicle is located in a blind area or a non-blind area; when the intelligent vehicle is located in a GNSS non-blind area, combining GNSS signals, odometer data and inertial measurement unit data, acquiring a current pose of the intelligent vehicle through a Kalman filtering, scanning a surrounding environment of the intelligent vehicle by using a laser radar, extracting corner points and arc features and performing processing to obtain the corner points and circle centers as the feature points, calculating global coordinates and weights of the feature points and storing the global coordinates and the weights of the feature points in a current feature point list.
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公开(公告)号：US11000763B2
公开(公告)日：2021-05-11
申请号：US16494176
申请日：2018-03-30
发明人： Takanori Minamino , Yoshiyuki Imada
摘要： An acquisition section 100 acquires a mouse operation signal. A dead zone adjustment section 126 adds a signal part corresponding to a dead zone set to an analog stick, to the mouse operation signal. An analog stick operation signal generation section 128 generates an analog stick operation signal from the mouse operation signal having been subjected to dead zone adjustment. An output processing section 150 provides the generated analog stick operation signal to a game. The dead zone adjustment section 126 adds the signal part corresponding to the dead zone in a direction in which an operation angle of a mouse is maintained.
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公开(公告)号：US10996342B2
公开(公告)日：2021-05-04
申请号：US15546081
申请日：2015-01-29
发明人： Takuma Kadoya
摘要： A positioning apparatus, including: positioning calculation devices for positioning for a plural antenna, to acquire positioning results indicating the antennas positions and accuracy indices indicating accuracies of the positions, the antennas receiving GPS satellites signals and having a known distance between each antennas; and a determination device including: a determination unit performing first determination whether accuracies indicated by the accuracy indices of two antennas out of the plural antenna is higher than a first threshold and second determination whether a difference between a measured distance between the two antennas based on a difference between positioning results of the antennas and an actual distance therebetween is smaller than a second threshold, to thereby acquire a reliability index (RI) and a final positioning result (FPR) based on the two determinations; and an output signal generation unit for generating positioning information for controlling a human interface (HI) to notify a result based on the (FPR) and (RI).
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公开(公告)号：US20210117585A1
公开(公告)日：2021-04-22
申请号：US17134824
申请日：2020-12-28
申请人： Middle Chart, LLC
摘要： Methods and apparatus for interacting with a tag in a radio target area. More specifically, the present invention relates to methods and systems for monitoring temperature and other environmental conditions in a storage area and displaying environmental conditions as digital content in a user interactive interface based upon energy levels received from a radio target area and content from a sensor generating digital content.
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公开(公告)号：US10983223B2
公开(公告)日：2021-04-20
申请号：US16045076
申请日：2018-07-25
发明人： Andrew J. Moore , Scott B. Dorsey
IPC分类号： G05D1/00 , B64C39/02 , H04W8/08 , G01S5/02 , G01S19/46 , G05D3/00 , G01S19/48 , G05D1/02 , G01S19/51 , G01C21/20 , G01S5/10 , G01S5/14 , G01C21/04 , G05D1/10
摘要： A method for determining geolocation of a UAV near a power grid includes detecting, via a transceiver, a carrier signal transmitted from a first grid node to identify the node's fixed geolocation. A response signal may be transmitted from a second grid node in response to the carrier signal to identify a fixed geolocation of the second grid node, or the UAV may process the carrier signal. A processor determines time-of-flight of the carrier signal, e.g., using the response signal, and derives the UAV's geolocation using the time-of-flight. Determining time-of-flight may include referencing a lookup table indexed by time-of-arrival at the transceiver of the modulated carrier and response signals. A timestamp may indicate time-of-transmission of the carrier and response signals, respectively. Deriving geolocation may include subtracting time-of-transmission of the response signal from that of the carrier signal. A system includes the processor and transceiver.
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