序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 Apparatus and methods for position calculation based on the broadcast initialization data JP2000555108 1999-05-25 JP2002518684A 2002-06-25 ラメシュ、ラジャラム
(57)【要約】 本発明は高い精度、短い衛星捕捉時間と少ない消費電位置計算するための装置と方法を提供する。 位置計算装置には、それが配置されている地理的領域をカバーするセルラ網等の無線通信網を監視する無線通信受信機が含まれる。 この装置は無線通信網からの信号を復調し、無線通信網の放送チャネルから測位データを取得する。 この測位データは位置を計算するのに先立って衛星捕捉動作に使用される。 位置計算装置にはさらに、一団のGPS衛星から放送された測位メッセージを受け取る受信機が含まれる。 この装置内の位置計算回路は、1つまたは複数の測位衛星を最初に捕捉するのに無線通信網から取得した測位データを利用する。 所望の数の測位衛星が捕捉されたなら、捕捉された測位衛星から測位メッセージを受け取り、それを使って位置計算装置の位置を算出する。
82 Gps position measuring device and gps position measuring method and recording medium read by computer recording gps position measuring program JP11450999 1999-04-22 JP2000304843A 2000-11-02 YAMAMOTO YOSUKE; YAMAYA MASARU
PROBLEM TO BE SOLVED: To perform highly precise position measurement and miniaturize a GPS position measuring device without necessitating a known point side GPS position measuring device (base station) and a relay station. SOLUTION: This GPS position measuring device is provided with an input part 24 used to input known point position information, an approximation part 28 which approximates a plurality of pseudo-distance information (propagation distance between GPS antenna 21 and a GPS satellite) obtained by a GPS receiver 22 at a known point by the least square approximation polynomial and outputs each coefficient as coefficient information, and a position measurement processing part 29 which obtains a plurality of pseudo-distances at an unknown point from the GPS receiver 22 and predicts a plurality of pseudo-distance predicted values predicting a plurality of pseudo-distances at a known point based on the coefficient information. The position measurement processing part 29 finds a position of an unknown point based on known point position information, a plurality of pseudo-distances at an unknown point, and a plurality of pseudo-distance predicting values.
83 Method and system for tracking route of autonomous vehicle JP15478099 1999-06-02 JP2000029518A 2000-01-28 KYRTSOS CHRISTOS T; GUDAT ADAM J; CHRISTENSEN DANA A; FRIEDRICH DOUGLAS W; STAFFORD DARRELL E; SENNOT JAMES W
PROBLEM TO BE SOLVED: To obtain superior position specifying capability by planning a continuous course from an actual position to a desired vehicle course with a quintic polynomial based upon an actual vehicle position, the desired vehicle course, and a front distance and making a vehicle follow up a continuous route. SOLUTION: A steering control function block 4306 sends an instruction to a valve to control the steering angle of the wheels of the vehicle. A navigator always monitors the vehicle 102 so as to determine how far the vehicle 102 is away from the desired course. The vehicle 102 always deviates from the desired course to some extent and the system corrects it at any time. The steering angle is represented as off-course Φ steering = f(C(desired)+C(error)). A quintic method used to calculate the C(error) is the quintic polynomial in an error space limiting a smooth course for a return to desired course. The degree of the polynomial is limited by necessary data, i.e., C(error) and known end restrictions.
84 Locating system and method for using a mobile communication network JP51631496 1995-11-14 JPH10509000A 1998-09-02 ウァースァム,ラリ、シー
(57)【要約】 ディファレンシャル・ポジショニング・システム(10)は、衛星ベース又は地上ベースのポジショニング・システム(12)の構成品と移動通信ネットワーク(14)の構成品とを含む。 ディファレンシャル・ポジショニング・システム(10)は、正確で即時性を有する位置情報を移動ユニット(17)に与える。 移動通信ネットワーク(14)のトランスミッタ・サイト(40)は、基準ポジショニング受信機(38)と関連付けられている。 基準ポジショニング受信機(38)は移動ユニット(17)へ伝送するための補正データを発生させる。 移動ユニット(17)は、基準ポジショニング受信機(38)によって生成された補正データを受信するモバイル通信装置(42)と固定された位置を発生させるモバイル・ポジショニング受信機(24)とを含む。 移動ユニット(17)は、移動通信装置(42)によって受信された補正データを用い、モバイル・ポジショニング受信機(24)により、固定された位置を精巧なものとする。
85 Positioning system, fixed-station-side apparatus and positioning apparatus used therefor JP20200796 1996-07-31 JPH1048320A 1998-02-20 ITO TORU
PROBLEM TO BE SOLVED: To obtain a positioning system which provides only a prescribed user with high-accuracy correction data for GPS positioning correction. SOLUTION: Differential global positioning system(DGPS) data which is obtained from FM broadcast waves is fetched by a DGPS data fetch part 226. At this time, an adjustment error is added to correction data which is used actually to correct a positioning operation in the obtained DGPS data, and the accuracy of the correction data is not so high. A correction-value creating part 228 judges which data in a correction-value table 230 is to be read out from the content of the DGPS data. A system for the judgment is decided in advance. Then, a corresponding correction value is read out from the correction- value table, and a correction value is created. Then, the correction value and the correction data are added in a DGPS data designation part, and correct correction data is obtained. High-accuracy position information is obtained from the obtained correct correction data.
86 Method and system for acquiring relationship between laser plane and external coordinate system JP6346497 1997-03-17 JPH1038570A 1998-02-13 SAHM WILLIAM C; HARROD GREGORY R
PROBLEM TO BE SOLVED: To accurately detect the inclination of the cross-sectional of a working jig by acquiring the relationship between a laser plane surface and an external coordinate system in response to cross signals of a laser plane and a laser detector fitted on the working jig and external reference position signals. SOLUTION: Laser beams 210 are swept from a laser scanner 208 arranged at a specific coordinate position of a working place 214 (measurement region), and a working jig 216 is moved so that receiving means 230, 232 fitted to the working jig 202 like a soil working blade 236 cross a laser plane 216, in order to detect cross signals. Further, external reference position signals from a base station 222 arranged at a known coordinate position of the working place 214 are received by an external coordinate system position sensor fitted on the working jig 202. A crossing state over the laser plane surface 216 is kept, while the working jig 202 is leveled and the equation of the laser plane surface 216 relating to an external coordinate system is decided as a function of the external reference position signals, and a position of the working jig 202 (blade 236) and an inclination of the section (edge) are controlled. COPYRIGHT: (C)1998,JPO
87 Satellite radio positioning JP28254596 1996-10-24 JPH09171071A 1997-06-30 KINAL GEORGE VLADIMIR; NAGLE II JAMES ROBERT; SODDU CLAUDIO; RYAN FINTAN RICHARD
PROBLEM TO BE SOLVED: To precisely compute the position and the time by using a distance- measuring signal which is indicated by extended data and region extended data and in which an ionosphere delay and an error are corrected. SOLUTION: The satellite radio positioning system is provided with a global navigation service(GNSS) satellite 2 which generates a GNSS distance-measuring signal R n, a geostationary satellite 6 which retransmits a distance-measuring signal R g containing extended data A generated by a navigation land earth station(NLES), and a medium-altitude orbit(MEO) satellite 10 which generates a distance-measuring signal R a containing region extended data RA transmitted from a satellite access node(SAN) 14. A navigation receiver 11 receives the distance-measuring signals R g, R a, R n, and it computes ionosphere delay values regarding the distance-measuring signals provided at a double frequency. The receiver estimates ionosphere delay values regarding the distance-measuring signals provided at a single frequency by using the ionosphere delay values, the region extended data RA and the extended data A. COPYRIGHT: (C)1997,JPO
88 JPH05503775A - JP50234991 1990-12-10 JPH05503775A 1993-06-17
89 TRACKING SYSTEM AND METHOD THEREOF US15965997 2018-04-30 US20180315211A1 2018-11-01 Yuan-Tung CHEN; Shing-Chiao YEH; Po-I WU; Heng DING; Kun-Chun TSAI
A tracking system and a method thereof are provided in this disclosure. The tracking method includes steps of: capturing first images of the physical environment by a first electronic device; extracting a plurality of first feature points from the first images; generating a plurality of map points according to the extracted first feature points; building a map of the physical environment according to the map points by the first electronic device; capturing a second image of the physical environment by a second electronic device; extracting second feature points of the second image and transmitting the second feature points to the first electronic device; and estimating a pose of the second electronic device according to the map and the received second feature points by the first electronic device.
90 NOTIFICATION METHOD, NOTIFICATION DEVICE, AND TERMINAL US15891450 2018-02-08 US20180164807A1 2018-06-14 SHUNSUKE KUHARA
A notification method includes determining, on the basis of positional information regarding a drone and positional information regarding a plurality of terminals carried by an operator who visually observes and operates the drone and one or more visual observers who visually observe the drone, at least either responsible observation areas, which are areas in which the operator and the one or more visual observers are to visually observe the drone, or responsible observation periods, which are periods for which the operator and the one or more visual observers are to visually observe the drone, and notifying the plurality of terminals of at least either the responsible observation areas or the responsible observation periods.
91 POSITIONAL MEASUREMENT SYSTEM, POSITIONAL MEASUREMENT METHOD, AND MOBILE ROBOT US15667417 2017-08-02 US20180059250A1 2018-03-01 YOHEI NAKATA; KAZUMA TAKEUCHI; MASAHIKO SAITO
A positional measurement system includes: a mobile robot including a global navigation satellite system (GNSS) signal reception unit that receives GNSS signals and calculates a position of the mobile robot based on the GNSS signals, a GNSS signal precision evaluation unit that evaluates positional measurement precision by the received GNSS signals, and a position control unit that moves the mobile robot to a high-precision reception position, where GNSS signals yielding positional measurement precision higher than a first threshold precision can be received; a relative position detection unit that detects a relative position of a target as to the mobile robot situated at the high-precision reception position; and a target position calculation unit that calculates a position of the target based on the calculated position of the mobile robot based on the GNSS signals received at the high-precision reception position, and the relative position.
92 Collaborative Spatial Positioning US15440696 2017-02-23 US20180038939A1 2018-02-08 David J. Bruemmer; Benjamin C. Hardin; Curtis W. Nielsen
Disparate positional data derived from one or more positional determinative resources are fused with peer-to-peer relational data to provide an object with a collaborative positional awareness. An object collects positional determinative information from one or more positional resources so to independently determine its spatial location. That determination is thereafter augmented by peer-to-peer relational information that can be used to enhance positional determination and modify behavioral outcomes.
93 Devices, systems and methods for providing location information over a cellular network US12635997 2009-12-11 US09651674B2 2017-05-16 Justin Michael Anthony McNamara; John Potts Davis, III; Stephen Thomas Hardin; Jay Daryl Rector
The disclosure provides devices, systems, and methods for approximating the location of a mobile communication device. A base station transceiver (BTS) broadcasts assistance data across a control channel. The assistance data is received by a mobile communication device in communication with the BTS. The assistance data includes location information for the BTS, and Public Land Mobile Network (PLMN) information associated with the BTS. The assistance data can be broadcast by incorporating these fields in a control channel between the BTS and the mobile communication device. A-GPS devices correlate the received assistance data with a GPS almanac in order to connect to a set of positioning satellites. Devices without a GPS receiver or devices unable to connect to a satellite correlate the received assistance data to a known approximate location, by referring to a database stored on the device or on the network.
94 Determination of a Statistical Attribute of a Set of Measurement Errors US14788753 2015-06-30 US20170003396A1 2017-01-05 Jeffrey ADACHI; Andrew LEWIS
A method comprising receiving probe data indicative of a set of navigational signal measurements that is matched to a link segment, determining a set of measurement errors such that each measurement error of the set of measurement errors is a difference between a location indicated by the link segment and a location indicated by a navigational signal measurement of the set of navigational signal measurements, determining at least one statistical attribute of the set of measurement errors, and storing an indication of the statistical attribute in map information associated with the link segment is disclosed.
95 Localization system and localization method US12620189 2009-11-17 US09404999B2 2016-08-02 Chiaki Aoyama
A localization system includes: n+1 number of luminescent devices, where n is an integer greater than or equal to one; and a position measurement device moving in each direction of n number of axes, wherein the luminescent device includes a luminescent unit, the luminescent unit emitting a light for measurement having an intensity that varies at a predetermined time cycle, the luminescent unit also emitting a light for identification including an information representing a position of the luminescent device, the luminescent unit emitting the light for measurement and the light for identification in synchrony with a phase of those emitted by another luminescent device; and the position measurement device includes a light reception unit, a position obtaining unit, a phase computation unit, a standard luminescent device selection unit, a phase difference computation unit, and a position computation unit.
96 Using multiple sources of location-aid data to determine position information US13797599 2013-03-12 US09110157B2 2015-08-18 Tirosh Levin; Tomer Daniel
A wireless location/position computation system, device, and method are directed to multiple aid-data sources each providing location-related aid information, a wireless device configured to communicate with the aid-data sources, and a location computation module either integrated with or external to the wireless device. The wireless device may include a transceiver to communicate wireless, data and other signals. The wireless device may receive a position request to compute a position of the wireless device, and in response, initiate a compute-position session. In the compute-position session, the wireless device sends aid requests to and retrieves the location-related aid information from the aid-data sources and processes the location-related aid information from the aid-data sources to generate integrated location information. The location computation module may compute the position of the wireless device based on the integrated location information and satellite location information received from a satellite.
97 APPARATUS FOR CONTROLLING COMPLEMENTING POSITION OF VEHICLE, AND SYSTEM AND METHOD FOR COMPLEMENTING POSITION OF VEHICLE WITH THE SAID APPARATUS US14106025 2013-12-13 US20150149083A1 2015-05-28 Jeong Hee LEE
Disclosed are a system and a method for complementing a position of a vehicle and an apparatus for controlling complementing a position of a vehicle that select a representative vehicle within divided areas and complement a position of an own vehicle from a representative vehicle by using a DGPS complementation signal received through vehicle to vehicle (V2V) communication and vehicle to infrastructure (V2I) communication.
98 Collaborative Spatial Positioning US13873606 2013-04-30 US20140049429A1 2014-02-20 David J. Bruemmer; Benjamin C. Hardin; Curtis W. Nielsen
Disparate positional data derived from one or more positional determinative resources are fused with peer-to-peer relational data to provide an object with a collaborative positional awareness. An object collects positional determinative information from one or more positional resources so to independently determine its spatial location. That determination is thereafter augmented by peer-to-peer relational information that can be used to enhance positional determination and modify behavioral outcomes.
99 Navigation with satellite communications US11108194 2005-04-18 US07535402B1 2009-05-19 David G. Lawrence; Michael L. O'Connor
A Low Earth Orbiting (LEO) satellite is used for broadcasting differential navigation corrections. Using LEO satellites, the “footprint” of the beam is much smaller than for geosynchronous satellites, and therefore data link bandwidth requirements are reduced to sufficiently cover an entire area. With a LEO satellite transmitting in multiple beams, these footprints become even smaller. Corrections targeted to such a small area could have the form of local area corrections (for example, raw measurements taken from a navigation reference station) using the LEO satellites.
100 Asynchronous local position determination system and method US10909170 2004-07-30 US07342538B2 2008-03-11 Kurt R. Zimmerman
In a local positioning system, the land-based transmitters include free running oscillators or oscillators free of clock synchronization with any remote oscillator. A reference receiver receives the ranging signals from different transmitters and generates timing offset information, such as code phase measurements. The timing offset information is then communicated back to transmitters. The temporal offset information indicates relative timing or phasing of the different transmitted ranging signals to the reference receiver. The transmitters then transmit the temporal offset information with the ranging signals, such as modulating the transmitted code by the timing offset information. A mobile receiver is operable to receive the ranging signals and timing offset information in a same communications path, such as on a same carrier. Position is determined with the temporal offset information and the ranging signals. The temporal offset information for the various transmitters allows the mobile receiver to more accurately determine position than in an unsynchronized system.
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