-
公开(公告)号：US12078733B2
公开(公告)日：2024-09-03
申请号：US18118503
申请日：2023-03-07
发明人： Seiji Yoshida , Masakatsu Fujiwara
摘要： A navigation satellite system reception apparatus can eliminate multipath signals without direct waves of invisible satellites and can implement time synchronization. A satellite orbit information acquisition unit acquires orbit information of a satellite, an installation position information acquisition unit acquires position information of an installation position, an azimuth meter acquires azimuth information of an azimuth in which a wall surface of a nearby obstruction extends, and an azimuth mask generation unit calculates a mask region for selecting a satellite to be a target of processing based on the azimuth information. A positioning and time synchronization processing unit calculates an azimuth and an angle of elevation of each satellite, selects a satellite to be a target of processing bas, and performs the positioning processing or the time synchronization processing based on a satellite signal received from the selected satellite.
-
公开(公告)号：US12013470B2
公开(公告)日：2024-06-18
申请号：US17287747
申请日：2019-08-26
摘要： The present application: receives positioning data from each of a plurality of positioning terminals that have received positioning signals transmitted from a plurality of satellites; uses the received positioning data to detect, for each satellite, the difference between the positioning signal reception quality at a first positioning terminal and the positioning signal reception quality at at least one second positioning terminal; and uses the difference for each satellite to determine a satellite to be used for positioning computation for the first positioning terminal.
-
公开(公告)号：US12000114B2
公开(公告)日：2024-06-04
申请号：US17274448
申请日：2020-02-04
发明人： Yasuhiko Kanari , Hideto Ishibashi
摘要： A hydraulic excavator includes a receiver configured to calculate a position and an azimuth angle of an upper swing structure on the basis of satellite signals received by two GNSS antennae and a controller configured to calculate a distal end position of a bucket on the basis of the position and the azimuth angle of the upper swing structure calculated by the receiver. The controller sets, on the basis of installation positions of the two GNSS antennae, a movable range of a front work device and an inclination angle and an azimuth angle of the upper swing structure, a range within which the front work device possibly becomes an obstacle to reception of satellite signals by each of the two GNSS antennae as a mask range. The receiver is configured to calculate the position and the azimuth angle of the upper swing structure on the basis of the satellite signals transmitted from the remaining satellites other than the satellites positioned in the mask range.
-
公开(公告)号：US11899117B2
公开(公告)日：2024-02-13
申请号：US16971613
申请日：2018-09-13
发明人： Ryo Miyamoto , Maho Kashiwagi , Yuka Kanda
摘要： A moving body positioning system of the present invention includes: a GNSS receiver that is included in a moving body and that receives a GNSS signal transmitted from each of one or more satellites and acquires pieces of observation data respectively corresponding to the satellites; an external data acquisition means that acquires external data; a multipath detection means that detects multipath with respect to an observation data group; and a positioning calculation means that performs positioning calculation after a selection of a satellite to be used and a satellite to be excluded on the basis of a result of the multipath detection.
-
公开(公告)号：US11796685B2
公开(公告)日：2023-10-24
申请号：US17537425
申请日：2021-11-29
发明人： Naoto Toda
摘要： An electronic device includes a GPS unit, a GPS information acquisition unit, a sensor information acquisition unit, and a reception condition determination unit. The GPS unit receives a radio wave from at least one of a plurality of positioning satellites. The GPS information acquisition unit acquires ephemeris information by the GPS unit and acquires satellite arrangement information of each of the plurality of positioning satellites acquiring the ephemeris information. The sensor information acquisition unit acquires geographical condition information of a current location at which the electronic device is present. The reception condition determination unit identifies the number of positioning satellites that the receiving unit can capture at the current location among the plurality of positioning satellites acquiring the ephemeris information based on the geographical condition information of the current location and the satellite arrangement information.
-
公开(公告)号：US20230333260A9
公开(公告)日：2023-10-19
申请号：US17374882
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard Ford , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam Gleave , Ronald Toh Ming Wong
摘要： The technology disclosed teaches a method of improving accuracy of a GNSS receiver that has a non-directional antenna, with the receiver sending CDN a request for predictive data for an area that includes the receiver. Responsive to the query, the method includes receiving data regarding LOS visibility for the receiver with respect to individual satellites, and the receiver using the data for satellite selection, for choosing some and ignoring other individual satellites. Also disclosed is using the data to exclude from satellite selection at least one individual satellite based on lack of LOS visibility to the individual satellite. Further disclosed is recognizing and rejecting spoofed GNSS signals received by a GNSS receiver that has a non-directional antenna, in response to a CDN response to a request for predictive data for an area that includes the receiver, with the receiver comparing the data with measures of signals received from individual satellites.
-
7.发明申请公开(公告)号：US20190250277A1
公开(公告)日：2019-08-15
申请号：US16337531
申请日：2016-11-07
发明人： Masakazu MIYA , Seigo FUJITA , Yuki SATO
摘要： In a positioning augmentation device (40), a plan making unit (84) selects a subset satisfying selection conditions from within a candidate set that is a set of satellites being selection candidates and saves plan data (43) indicating the selected subset in a memory (72). A plan alteration unit (85) acquires integrity information indicating quality of a positioning signal transmitted from each satellite and detects a satellite of which the quality of the positioning signal does not satisfy quality conditions, from within the subset selected by the plan making unit (84), based on the acquired integrity information. The plan alteration unit (85) replaces the detected satellite in the subset with another satellite included in the candidate set. A message generation unit (87) makes satellites, included in the subset indicated by the plan data (43) saved in the memory (72) among the satellites included in the candidate set, objects of positioning augmentation and generates a message (41) for distribution of augmentation information to be used for the positioning augmentation.
-
公开(公告)号：US20180239028A1
公开(公告)日：2018-08-23
申请号：US15554723
申请日：2016-02-22
发明人： HENDRIK IBENDORF , OLAF RICHTER
CPC分类号： G01S19/426 , G01S19/215 , G01S19/22 , G01S19/28 , G01S19/36 , H01Q1/3233 , H01Q21/205
摘要： A position is determined using GNSS (Global Navigation Satellite Systems) with an antenna assembly having a number of antennas that are oriented with different direction vectors. Antenna-received signals are supplied to an evaluation assembly, which includes GNSS receivers and an evaluation device. The antenna-received signals are detected with regard to their satellite-related signal-to-noise ratio and, in relation to each satellite, the satellite-specific signal-to-noise ratio measured values that are positively distinguished in their signal-to-noise ratio from other signal-to-noise ratio measured values relating to the same satellite are selected. A satellite-related main direction vector signal is formed from each of the direction vector signals of the antennas. The main direction vector signals are compared with the orientation vector signals that characterize the position of the respective satellites in orbit; in the event of minor deviations a position indication is given.
-
公开(公告)号：US20180216459A1
公开(公告)日：2018-08-02
申请号：US15578383
申请日：2015-06-02
发明人： Tommi HEIKKILA , Ari KOPPEROINEN , Sami HANSKI
摘要： An apparatus, method and computer program product is provided for determining positional conditions of a satellite positioned mobile mine work machine at a work site. The apparatus determines satellite coverage condition data on a basis of received data of satellite signal availability. Further the apparatus modifies work tasks of the mobile mine work machines of the basis of the determined satellite coverage condition data.
-
公开(公告)号：US20180164441A1
公开(公告)日：2018-06-14
申请号：US15375490
申请日：2016-12-12
申请人： The Boeing Company
CPC分类号： G01S19/28 , H01Q3/26 , H01Q3/34 , H01Q21/205 , H01Q21/22 , H01Q21/245 , H04B7/18519
摘要： A user terminal includes a reconfigurable phased array antenna having a plurality of antenna elements. The user terminal is operable for: broadening a field of regard of the reconfigurable phased array antenna; receiving signals from a plurality of satellites within the field of regard using the reconfigurable phased array antenna; determining one or more attributes of the received signals for each of the satellites; and selecting one of the plurality of satellites for communication based on the attributes of the received signals. After the satellite has been selected, the user terminal is configured for: switching to a directional mode for the reconfigurable phased array antenna; establishing the communication with the selected satellite using the reconfigurable phased array antenna; and tracking the selected satellite. Ephemeris data broadcast by the satellites is used by the user terminal to track the satellites and to perform handovers between satellites.
-
-
-
-
-
-
-
-
-
搜索结果
470 条记录 (耗时 0.193 秒)
