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公开(公告)号：US10776452B2
公开(公告)日：2020-09-15
申请号：US15532158
申请日：2015-10-05
申请人： Robert Bosch GmbH
发明人： Andreas Vogel , Kateryna Krykunova
IPC分类号： G06F17/18 , H03H17/02 , G01S19/47 , G01S13/931 , G01S19/45 , G01S19/13 , G01S7/35 , G01S7/292
摘要： In order to at least approximately determine statistical properties of raw measured values, e.g., measurement noise and/or average errors, without knowledge of a filter applied to raw measured values and only with the aid of a useful signal obtained from the filtering, i.e., in order to make statements regarding measurement conditions by assuming a few frequently encountered boundary conditions, statistical properties of raw measured values are determined from the useful signal, which is composed of a temporal sequence of filter output values. A filter characteristic of the filter is ascertained from the temporal sequence of output values obtained under stable measurement conditions, the ascertained filter characteristic is inverted, raw measured values are reconstructed from the inverse of the filter characteristic and from the useful signal, and the statistical properties are ascertained from the reconstructed raw measured values and/or from the inverse of the filter characteristic and from the useful signal.
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公开(公告)号：US20200278217A1
公开(公告)日：2020-09-03
申请号：US16290268
申请日：2019-03-01
发明人： Fawad Ahmad , Hang Qiu , Ramesh Govindan , Donald K. Grimm , Fan Bai
摘要： A vehicle is described, and includes an on-board controller, an extra-vehicle communication system, a GPS sensor, a spatial monitoring system, and a navigation system that employs an on-vehicle navigation map. Operation includes capturing a 3D sensor representation of a field of view and an associated GPS location, executing a feature extraction routine, executing a semantic segmentation of the extracted features, executing a simultaneous location and mapping (SLAM) of the extracted features, executing a context extraction from the simultaneous location and mapping of the extracted features, and updating the on-vehicle navigation map based thereon. A parsimonious map representation is generated based upon the updated on-vehicle navigation map, and is communicated to a second, off-board controller. The second controller executes a sparse map stitching to update a base navigation map based upon the parsimonious map representation. The on-vehicle navigation map is updated based upon the off-board navigation map.
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公开(公告)号：US10761543B2
公开(公告)日：2020-09-01
申请号：US15940316
申请日：2018-03-29
申请人： Trimble Inc.
发明人： Dietrich Schaff , Doug Brewer , Jeremy Hopper
摘要： Systems and methods for steering a mobile agricultural machine to align a guidance point with a guidance line. One method includes setting the guidance point and setting the guidance line. The method also includes receiving, from an orientation sensor mounted on the mobile agricultural machine, orientation information including one or both of a pitch angle and a roll angle of the mobile agricultural machine. The method further includes calculating an orientation correction based on the orientation information. The method also includes modifying the guidance point using the orientation correction and steering the mobile agricultural machine to align the modified guidance point with the guidance line and/or modifying the guidance line using the orientation correction and steering the mobile agricultural machine to align the guidance point with the modified guidance line.
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公开(公告)号：US10746545B2
公开(公告)日：2020-08-18
申请号：US15609981
申请日：2017-05-31
申请人： Intel Corporation
发明人： Peter Fleming
摘要： Altitude determining circuitry for use in a User Equipment (UE) of a wireless communication network is provided. The circuitry comprises a receiver to receive at least one pressure parameter representative of a plurality of indoors pressure measurements from a respective plurality of indoors pressure measurement units located inside a building at different altitudes. The altitude determining circuitry also has processing circuitry to receive from a pressure sensor in the User Equipment a local pressure measurement at the UE and the processor determines an indoors altitude of the UE using the at least one pressure parameter and the UE local pressure. An integrated circuit for a Global Navigate Satellite System comprising the altitude determining circuitry and an indoors pressure measurement unit having a sensor for making a pressure measurement and a transmitter for transmitting the pressure measurement to the UE or to a further indoors pressure measurement unit are also provided.
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55.发明申请公开(公告)号：US20200225365A1
公开(公告)日：2020-07-16
申请号：US16628882
申请日：2018-06-04
申请人： Robert Bosch GmbH
发明人： Carsten Hasberg , Philipp Rasp
摘要： A method for operating a more highly automated vehicle (HAF), in particular a highly automated vehicle, including: S1—providing a digital map, which may be a highly accurate digital map, in a driver assistance system of the HAF; S2—providing at least one reference measuring point that is geodetically measuring in a highly accurate manner, positional data of the reference measuring point being stored in the digital map; S3—determining a current reference vehicle position by using the reference measuring point; S4—determining a current satellite vehicle position by using a global satellite navigation system (GNSS); and S5—comparing the reference vehicle position with the satellite vehicle position and ascertaining a GNSS error as a result of the comparison. Also described is a corresponding system and a computer program.
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公开(公告)号：US20200218905A1
公开(公告)日：2020-07-09
申请号：US16671052
申请日：2019-10-31
发明人： Tianheng WANG , Muryong KIM , Jubin JOSE
摘要： Techniques provided herein are directed toward tracking lateral and longitudinal offsets, which can include positioning errors of an initial position estimate as well as inconsistencies between the map and global frames. Tracking lateral and longitudinal offsets in this manner have been shown to help increase the accuracy of subsequent position estimates of a position estimation system for vehicle that uses an initial position estimate based on GNSS and VIO, with error correction based on location data for observed visual features obtained from a map.
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公开(公告)号：US20200174139A1
公开(公告)日：2020-06-04
申请号：US16784472
申请日：2020-02-07
发明人： Toshiyuki NOZAWA
摘要： An electronic timepiece is provided that executes navigation to a destination site. The timepiece includes a display unit, a magnetic sensor, a reception unit that receives time information indicating a time from a GPS satellite, a storage unit that stores orbit information indicating an orbit of the GPS satellite, and a control unit that generates positional information indicating a position of the electronic timepiece using the time information received by the reception unit and the orbit information stored in the storage unit and executes the navigation using the display unit based on the positional information, an output of the magnetic sensor, and destination site information indicating a position of the destination site. When the orbit information is stored in the storage unit and then a first predetermined time equal to or less than a valid period of the orbit information elapses, the control unit updates the orbit information stored in the storage unit.
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公开(公告)号：US10598499B2
公开(公告)日：2020-03-24
申请号：US16045121
申请日：2018-07-25
发明人： Marko Dogramadzi , Aftab Khan
摘要： A computer implemented method of matching a series of geolocation measurements to a map using a Viterbi algorithm by determining transition probabilities between pairs of candidate points for consecutive geolocation measurements. The map comprises a plurality of paths. The method comprises segmenting the map into a plurality of segments and, when a distance of the consecutive geolocation measurements is less than or equal to a segment length, determining the transition probability between two candidate points based on a Euclidian distance between the two candidate points and a route distance between the two candidate points. The route distance is equal to the Euclidean distance plus a first predetermined value when the two candidate points are not in the same segment as each other.
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公开(公告)号：US10542516B2
公开(公告)日：2020-01-21
申请号：US15706051
申请日：2017-09-15
申请人： NextNav, LLC
发明人： Arun Raghupathy , Norman F. Krasner
摘要： Embodiments describe determining position by selecting a set of digital pseudorandom sequences. The magnitudes of the cross-correlation between any two sequences of the chosen set are below a specified threshold. A subset of digital pseudorandom sequences are selected from the set such that the magnitudes of the autocorrelation function of each member of the subset, within a specified region adjacent to the peak of the autocorrelation function, are equal to or less than a prescribed value. Each transmitter transmits a positioning signal, and at least a portion of the positioning signal is modulated with at least one member of the subset. At least two transmitters of the plurality of transmitters modulate respective positioning signals with different members of the subset of digital pseudorandom sequences.
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公开(公告)号：US20190373204A1
公开(公告)日：2019-12-05
申请号：US16541493
申请日：2019-08-15
申请人： Trimble Inc.
发明人： Darrin Hurd , Farshad Nourozi
摘要： A method for displaying images using an AR device. GNSS position data is received based on wireless signals received from a GNSS satellite. Based on the GNSS position data, a first GNSS point within a geospatial frame is determined within a first time range and a second GNSS point within the geospatial frame is determined within a second time range. Based on camera POS data, a first AR point within an AR frame is determined within the first time range and a second AR point within the AR frame is determined within the second time range. One of the frames is shifted such that the second GNSS point is aligned with the second AR point. An angle formed by the GNSS points and the AR points is calculated. One of the frames is rotated by the angle.
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