Entries |
Document | Title | Date |
20100231445 | APPARATUS AND METHOD FOR USE IN GLOBAL POSITION MEASUREMENTS - Apparatus and methods are provided for use in a receiver that receives global positioning data from one or more satellites above the Earth's surface. The apparatus and methods involve detecting a change in at least one parameter associated with the receiver and determining if the change in the at least one parameter is to be treated as erroneous. As a result of determining if the change in the at least one parameter is to be treated as erroneous, a further action may be performed. Determining if the change is to be treated as erroneous may include, for example, detecting changes in more than one parameter and determining if the changes are coincident. Detecting a change in at least one parameter may also enable the receiver to predict the presence and magnitude of multipath components of signals, predict changes in an environment local to the receiver, predict large errors in position estimates determined by the receiver and modify an acquisition and tracking strategy used by the receiver. | 09-16-2010 |
20100265130 | Positioning System and Method Thereof - The invention provides a positioning system. In one embodiment, the positioning system comprises a Global Navigation Satellite System (GNSS) module, a dead reckoning module, a Geographic Information System (GIS) module, and an calculating module. The GNSS module generates a first positioning data according to satellite communication. The dead reckoning module estimates a second positioning data according to a sensor's measurement data, the first positioning data, and a feedback positioning data of a previous epoch. The GIS module fits the first positioning data to a map to generate a third positioning data taken as a final output of the positioning system. The calculating module integrates the third positioning data and the second positioning data according to predetermined weights to obtain the feedback positioning data of a current epoch, which is recursively fed back to the dead reckoning module for a next estimation. | 10-21-2010 |
20100283675 | REAL TIME METHOD FOR DETERMINING THE SPATIAL POSE OF ELECTRIC MINING SHOVELS - Knowing the global pose of mining excavators provides a range of benefits for managing and automating mining operations. A method for globally locating the pose of an electric mining shovel is described. The system takes measurements from an arbitrary number of RTK-GPS antennas mounted on the machine house and a resolver fitted to the machines' swing axis. A Kalman filter is used to produce estimates of the global locations pose. | 11-11-2010 |
20100309044 | On Demand Positioning - The subject matter disclosed herein relates to determining a location of a mobile device using more than one location-determining technology. | 12-09-2010 |
20100315287 | INDEPENDENT ALTITUDE MEASUREMENT IN SATELLITE POSITIONING SYSTEM - A device and method for independent altitude measurement in a satellite positioning system. | 12-16-2010 |
20110012784 | METHODS AND SYSTEMS FOR DETERMINING LOCATION USING A HYBRID SATELLITE AND WLAN POSITIONING SYSTEM BY SELECTING THE BEST SPS MEASUREMENTS - The disclosed subject matter generally relates to hybrid positioning systems and methods, more specifically, systems and methods of integrating a wireless local area network (WLAN) based positioning system (WLAN-PS) and a satellite positioning system (SPS) to improve accuracy of location estimates by selecting the best set of measurements from both systems. | 01-20-2011 |
20110018761 | METHOD AND SYSTEM FOR A FULL GNSS CAPABLE MULTI-STANDARD SINGLE CHIP - A multi-standard single chip integrated within a multi-standard mobile device concurrently receives multi-standard radio frequency signals by corresponding two or more integrated radios. The multi-standard single chip generates full GNSS measurement comprising pseudo-range information using the received radio frequency signals. The multi-standard single chip comprises a GNSS radio and multiple non-GNSS radios such as Bluetooth. The full GNSS measurement is generated using GNSS radio frequency signals received by the integrated GNSS radio and communicated over, for example, Bluetooth radio. GNSS satellite reference information embedded in radio frequency signals received by the integrated non-GNSS radios is extracted to assist the full GNSS measurement. A full GNSS navigation solution for the multi-standard mobile device is generated internally to and/or externally to the multi-standard single chip depending on the location of a navigation engine. The generation of the full GNSS measurement is independent of a host processor within the multi-standard mobile device. | 01-27-2011 |
20110102255 | Land survey system - A method and system obtains precise survey-grade position data of target points in zones where precise GPS data cannot be obtained, due to natural or man-made objects such as foliage and buildings. The system comprises position measurement components such as a GPS receiver, together with an inertial measurement unit (IMU) and an electronic distance meter (EDM) or an image capture device all mounted on a survey pole. The system and method obtains GPS data when outside the zone and uses the other position measurement systems, such as the IMU, inside the zone to traverse to a target point. The EDM or the image capture device may be used within or without the zone to obtain data to reduce accumulated position errors. | 05-05-2011 |
20110199259 | SENSOR-ASSISTED LOCATION-AWARE MOBILE DEVICE - A GNSS enabled mobile device moves from a first area where GNSS signal quality and/or level is above a threshold to a second area where GNSS signal quality and/or level is below the threshold. The GNSS enabled mobile device in the second area determines its own location utilizing previous GNSS measurements in the first area. GNSS signals are received to calculate GNSS measurements whenever the GNSS enabled mobile device is in the first area. The calculated GNSS measurements are utilized to determine a location of the GNSS enabled mobile device within the first area. The GNSS enabled mobile device in the second area utilizes the most current GNSS measurements in the first area to determine its own location. Sensors such as an image sensor, a light sensor, an audio sensor and/or a location sensor are used to refine the location of the GNSS enabled mobile device in the second area. | 08-18-2011 |
20110227787 | ANTI-SPOOFING DETECTION SYSTEM - Spoofing of a satellite positioning system is detected by receiving position location data from multiple sources. The received data is compared and inconsistent data is marked. A position location is estimated based on the received position location data, while accounting for the marked inconsistent data. | 09-22-2011 |
20110227788 | METHOD AND SYSTEM FOR GENERATING AND PROPAGATING LOCATION INFORMATION BY A MOBILE DEVICE USING SENSORY DATA - A mobile device may determine its initial absolute location; may track using a plurality of sensors, its movements relative to the initial absolute location; and may generate location related data for a location based on that tracking. Tracking movement of the mobile device may comprise generating data corresponding to three-dimensional (3D) linear and/or rotational changes in position and/or location of the mobile device. The initial absolute location may be determined directly by the mobile device, based on GNSS signals and/or assisted GNSS (A-GNSS) data received from one or more location servers; and/or it may be estimated based on a location of a communication device that is communicatively coupled to the mobile device. The generated location related data may propagated by the mobile device to other mobile and/or communication devices, and/or to the location servers, where a reference database for supporting location related services (LBS) may be updated accordingly. | 09-22-2011 |
20120098700 | METHOD AND SYSTEM FOR COMPUTING UNIVERSAL HYBRID NAVIGATION INFORMATION FOR A GNSS ENABLED DEVICE - A Global navigation satellite-based systems (GNSS) enabled device, handling at least two of a plurality of sensors, collects GNSS measurements and navigation related non-GNSS sensor data. The collected navigation related non-GNSS sensor data is automatically formatted into a data format that is compatible with a format of the GNSS measurements. The formatted navigation related non-GNSS sensor data and the GNSS measurements are utilized by a single function to compute navigation information for the GNSS enabled device regardless of sensor configurations such as a cellular radio and/or a motion sensor. Measurement errors in the collected navigation related non-GNSS sensor data is estimated to determine measurement accuracy. The collected navigation related non-GNSS sensor data is selectively adopted, combined with the GNSS measurements, to compute navigation information by the single function based on the determined measurement accuracy. The computed navigation information may be utilized to calibrate sensor and/or sensor data when needed. | 04-26-2012 |
20120127030 | TIGHT OPTICAL INTEGRATION (TOI) OF IMAGES WITH GPS RANGE MEASUREMENTS - A method of determining the position of a user in 3D space is disclosed. In one example, the method comprises utilizing range measurements from one or more GPS satellite vehicles, angular information of a camera located at the user position, and a camera image associated with one or more known markers. The method further comprises determining the angular information of the camera by determining a direction cosine matrix between a camera frame of reference and an earth frame of reference, and designating unit vectors that individually extend from a position within the camera image associated with one of the known markers through the camera focal point to the respective known marker The method also includes integrating into an ordinary least squares matrix, the GPS range measurements, the angular information of the camera, and the unit vectors, and calculating the user position by solving the ordinary least squares matrix. | 05-24-2012 |
20120176270 | METHOD FOR PROVIDING RELIABILITY OF RECKONING LOCATION AND MOBILE TERMINAL THEREFOR - Disclosed are method and apparatus for evaluating reliability of reckoning location information and providing reliability information. A mobile terminal implementing the method provides a user with a handheld device to provide accurate location information. The method for providing reliability of a reckoning location preferably includes: reckoning a location using speed and direction information input from a sensor unit when satellite signal intensity of GPS satellite information is less than a first threshold value; calculating a moving distance using the reckoning location for a reckoned time of the location; evaluating the reliability of the reckoning location according to the moving distance; and providing the reckoning location and the reliability to a location information utility unit such that the location information utility unit determines presence of utility of the reckoning location according to the reliability. | 07-12-2012 |
20120268320 | Method and Apparatus for Combining Measurements and Determining Clock Offsets Between Different Satellite Positioning Systems - Method and apparatus for processing satellite signals from a first satellite navigation system and a second satellite navigation system is described. In one example, at least one first pseudorange between a satellite signal receiver and at least one satellite of the first satellite navigation system is measured. At least one second pseudorange between the satellite signal receiver and at least one satellite of the second satellite navigation system is measured. A difference between a first time reference frame of the first satellite navigation system and a second time reference frame of the second satellite navigation system, is obtained. The at least one first pseudorange and the at least one second pseudorange are combined using the difference in time references | 10-25-2012 |
20130082873 | Moving Information Determination Apparatus, a Receiver, and a Method Thereby - A moving information determination apparatus includes an ECA (Earth Center Assistant) information acquisition module, an altitude information and position information storage module and a moving information calculation module. The altitude information and position information storage module provides initial position information of the moving information determination apparatus and altitude information of the moving information determination apparatus. The ECA acquisition module obtains a radius of the Earth at the current position of the moving information determination apparatus. The moving information calculation module calculates the current position and/or velocity of the moving information determination apparatus based on the radius of the Earth and a plurality of signals from a plurality of satellites. | 04-04-2013 |
20130099962 | INDOOR ALTITUDE MEASURMENT BY GNSS RECEIVER - Global Navigation Satellite Systems (GNSS), such as the US GPS, the European GALILEO and the Russian GLONASS are very limited indoors, due to very low power levels and significant multipath. So, though hundreds of millions of people around the world use GPS receivers, particularly embedded in mobile devices, they cannot use these devices indoors, where they stay most of the time. Present art methods for augmenting or assisting GPS indoors, are mainly based on cellular or WLAN networks, and embedded sensors such as accelerometers and compasses, yet no integrated solution was launched. The present invention discloses a method that may contribute to GNSS indoors navigation, enabling a GNSS receiver to measure its elevation above sea level, indoors, to a floor resolution. The disclosed method is based on terrestrial infrastructure, yet possibly only one beacon per building. | 04-25-2013 |
20130176169 | METHOD AND APPARATUS FOR MOBILE NAVIGATION USING SMART PHONE - A method for mobile navigation by using a smart phone is provided. The smart phone comprises: a GNSS navigation processor, a motion detector, a correlation processor, a triangulation processor, and a verified location display. The method of the present technology comprises: (A) obtaining a set of GNSS processor position fixes by using the GNSS navigation processor; (B) obtaining a set of motion-related data of the smart phone by using the motion detector; and (C) correlating the set of GNSS processor position fixes associated with the smart phone and the set of motion-related data associated with the smart phone and obtaining a set of GNSS correlation data. If the set of GNSS processor position fixes based on the set of GNSS correlation data is verified, the GNSS navigation processor is used for navigation; whereas if the set of GNSS processor position fixes based on the set of GNSS correlation data is not verified, the motion detector aided by triangulation processor is used for navigation. | 07-11-2013 |
20130257649 | POSITIONING METHOD AND SYSTEM FOR REAL NAVIGATION AND COMPUTER READABLE STORAGE MEDIUM - A positioning method for real navigation includes steps of receiving a satellite positioning signal; calculating a satellite positioning coordinate according to the satellite positioning signal; capturing a real scene image of a driving path; recognizing whether an indicator exists in the real scene image; if the indicator exists in the real scene image, calculating an auxiliary positioning coordinate according to the indicator; and calculating a current coordinate corresponding to the driving path according to the satellite positioning coordinate and the auxiliary positioning coordinate. | 10-03-2013 |
20140062772 | WEARABLE OBJECT LOCATOR AND IMAGING SYSTEM - An object locator system for locating an object of interest in a scene. The locator system includes: a) a body mounted pedestrian localization unit worn by an operator; b) a hand-held rangefinder configured to be grasped by the operator; c) a pose sensor for estimating relative position and orientation of the hand-held rangefinder relative to the localization device; and d) a computer control system coupled to the pedestrian localization unit, the rangefinder, and the pose sensor, the computer control system being programmed to compute a relative location of the object with respect to the body worn localization unit using range data from the rangefinder and relative pose from the pose sensor, and transform the relative location to a global location using data from the pedestrian localization unit. | 03-06-2014 |
20140062773 | METHOD TO OPTIMIZE PROVIDING ASSISTANCE INFORMATION TO GPS - Methods and apparatus to provide assistance data for satellite navigation in a wireless communication device are disclosed. Processing circuitry in the wireless communication device determines whether to obtain assistance data for navigation based on a set of criteria. The set of criteria include one or more of a property of a geographic region in which the wireless communication device operates, a satellite signal quality estimate measured by the wireless communication device, and a user setting of the wireless communication device. When the set of criteria indicates that assistance data for navigation is beneficial for satellite navigation in the wireless communication device, the processing circuitry obtains one or more sets of assistance data. The processing circuitry configures operation of the wireless communication device for navigation based at least in part on the one or more sets of assistance data obtained. | 03-06-2014 |
20140232593 | SENSOR-ASSISTED LOCATION FIX - Sensor-assisted location technology is disclosed. Primary location technologies, such as GPS, can be used to determine the current location (e.g., a location fix) of a location-enabled device. In some instances, the primary location technology may be unreliable and/or consume more power than an alternative location technology. Sensors, such as accelerometers, compasses, gyrometers, and the like, can be used to supplement and/or increase the accuracy of location data. For example, a location-enabled device can identify an area with unreliable GPS location data and use sensors to calculate a more accurate location. Areas identified may be crowd-sourced. Sensors can be used to identify errors in the location data provided by primary location technology. Sensors can be used to modify a sampling interval of the primary location technology. Sensor can be used to smooth motion on a user interface between sampling intervals of the primary location technology. | 08-21-2014 |
20160041268 | GNSS DEVICE WITH PROXIMITY SENSOR FOR INITIATING DATA COLLECTION - A graphics-aided geodesic device is provided. The device includes an antenna for receiving position data from a plurality of satellites and a receiver coupled to the antenna. The device further includes orientation circuitry for obtaining orientation data. The orientation data represents an orientation of the apparatus with respect to a plane parallel with a horizon. The device further includes positioning circuitry for determining the position of the point of interest based at least on the position data and the orientation data. A function of the graphics-aided geodesic device may be activated in response to a distance sensor detecting that an object is within a threshold distance from the device. | 02-11-2016 |
20160054451 | ALTITUDE DETECTING UNIT, LOADING/DRIVING APPARATUS, AND ALTITUDE DETECTING METHOD - The present invention intends to provide an altitude detecting unit capable of, while utilizing both the advantages of a satellite positioning system and a pressure sensor, making an altitude measurement error, which may occur when combining them, as small as possible, and provide the others, and has determined a conversion expression adapted to convert from pressure into altitude such that at each of multiple valid altitude measurement points at which a satellite positioning system detects accurate altitude, altitude based on pressure is made equal to altitude by the satellite positioning system. | 02-25-2016 |
20160116602 | SYSTEMS AND METHODS OF TRACKING POSITION AND SPEED IN GNSS APPLICATIONS - Systems and methods of tracking a mobile subject based on Global Navigation Satellite Systems (GNSS) data, including a boundary test unit to evaluate a boundary violation according to the current actionable position and current actionable speed of the mobile subject relative to a predetermined boundary, wherein the current actionable position is a sum of a prior actionable position and a product of a degraded position difference and a position tracking coefficient, and a current actionable speed is a function of a prior actionable speed and a degraded speed estimate. | 04-28-2016 |
20160178368 | PORTABLE GNSS SURVEY SYSTEM | 06-23-2016 |
20160178369 | PORTABLE GNSS SURVEY SYSTEM | 06-23-2016 |