Abstract: A computer aided dispatch (CAD) center operator can view a displayed location indicator indicative of a last location of a public safety (PS) device on a geographic information system (GIS) map, together with a displayed confidence indicator indicative of the likelihood that the displayed last location of the PS device is accurate, for use in dispatching a PS person to an incident scene, or locating the PS person.
Abstract: An apparatus and method is provided for real-time location estimation of a mobile station (MS) on a map of roads using non-Global Positioning Satellite location data of the MS and includes a step of determining that the MS is stationary. A next step includes assigning each raw location datum with an initial mass such that the data exhibit an attractive force therebetween. A next step includes calculating a net attractive force for all data using a distance between the data. A next step includes moving each datum a normalized step on the map in response to the net attractive force. A next step includes merging any data that are within a predefined distance on the map and adding their masses. A next step includes repeating the calculating, moving, and merging steps until there are no consecutive merges for a predetermined number of iterations. A next step includes removing any datum with a mass less than a threshold.
Abstract: A file creation method comprising: creating file content at a particular location and time using a portable device; and obtaining data from wireless communication devices detectable by the portable device at the particular location and time thereby to obtain a set of data. The set of data identifies or enables identification of the wireless communication devices. The method further comprises associating the set of data and time with the file content to enable subsequent analysis to determine the particular location using a time-dependent database.
Type:
Grant
Filed:
May 15, 2009
Date of Patent:
July 5, 2016
Assignee:
u-blox AG
Inventors:
Johan Peeters, Andrew Thomas Yule, Graham Thomason
Abstract: Mobile communication stations (STA) and a method for position estimation in a wireless network having access points (APs) are disclosed. The STA is configured to perform position estimation operations, with respect to the APs, based on a position latency parameter, a rate parameter, a power parameter, and an accuracy parameter. An upper layer of the STA may send the parameters to a position provider that generates the position estimation measurements and transmits the results back to the upper layer wherein the results include the position of the STA prior to the present time and the length of time from the present time to the time that the STA was at that particular position.
Type:
Grant
Filed:
December 19, 2014
Date of Patent:
June 21, 2016
Assignee:
Intel Corporation
Inventors:
Leor Banin, Yuval Amizur, Uri Schatzberg
Abstract: This disclosure describes systems, methods, and computer-readable media related to employing particle filter methods to estimate the location of a mobile device. The data may include wireless data measurement associated with the mobile device and one or more access points and inertial data associated with the mobile device. Radio fingerprinting data associated with the one or more access points may be retrieved. A respective location for the wireless data measurements may be determined based on the radio fingerprinting data and inertial data. A respective weight may be calculated for the respective location for each of the plurality of particles. A respective confidence level may be maintained for the respective location for each of the plurality of particles. A current location may be identified based on the respective location for each of the plurality of particles and the respective weight associated with the respective location for each of the particles.
Type:
Grant
Filed:
March 28, 2014
Date of Patent:
June 14, 2016
Assignee:
Intel Corporation
Inventors:
Shao-Wen Yang, Lei Yang, Xue Sharon Yang
Abstract: An ultra wideband (UWB) or short-pulse RF system is disclosed that can be used to precisely locate or track objects (such as personnel, equipment, assets, etc.) in real-time in an arbitrarily large, physically connected or disconnected, multipath and/or noisy environment. A system implementation includes multiple zones or groups of receivers that receives RF signals transmitted by one or more timing reference tags and one or more objects having associated object tags. Each zone or group may share a common receiver. By combining a multiple reference tag system with a virtual group of receivers, i.e., a zoning technique or system, a cost-effective system can be provided that offers scalability and flexibility to monitor a significantly expanded coverage area.
Type:
Grant
Filed:
March 30, 2012
Date of Patent:
June 7, 2016
Assignee:
ZIH CORP.
Inventors:
Aitan Ameti, Keming Chen, Robert J. Fontana, Edward A. Richley, Belinda Turner
Abstract: Various embodiments provide a method and apparatus of providing wireless access point selection based on performance metric(s) and signal strength. In particular, a client selecting between one of a number of wireless access points bases the selection decision on performance metrics as well as signal strength.
Abstract: A system and method is described that computes an estimated current location for a client device based on both the detected current location and the predicted current location of the client device. By utilizing the predicted current location, the system and method may account for and compensate for anomalies and inaccuracies in the detected current location. Accordingly, the system and method provides a more accurate estimation for the current location of the client device based on examination of heuristics and a priori environmental data. In particular, the system and method compensates for detected locations that are impossible or improbable based on previous locations of the client device, the layout of the environment in which the client device is traversing, data describing the user of the client device, and/or data describing the client device.
Type:
Grant
Filed:
April 25, 2014
Date of Patent:
April 19, 2016
Assignee:
ARUBA NETWORKS, INC.
Inventors:
Abhishek R. Singh, Anant Kumar, Varun A. Shah
Abstract: A system and method for user interaction includes a network, a server connected to the network, a supervisor device receiving information from a global positioning system and connected to the network, a user device receiving information from the global positioning system and connected to the network. The supervisor, having the supervisor device, defines a set of virtual geographic zones and sub-zones in which the user device is tracked, and saves the set of virtual geographic zones and sub-zones to a supervisor account on the server. The user downloads a user application, sets-up a user account, and downloads the set of virtual geographic zones and sub-zones. As the user, having the user device, moves through the virtual geographic zones and sub-zones the location of the user device is determined and a set of supervisor-defined actions are executed on the user device based on the location of the user device.
Type:
Grant
Filed:
December 10, 2013
Date of Patent:
April 19, 2016
Inventors:
Robert L. Pierce, II, James L. Northrup
Abstract: The present invention is a system and method for external equipment monitoring. The presenting invention uses a network of sensor-devices that constitute a system that provides information about entities within a facility, where entities may mean industrial equipment, personnel, parts, raw materials, etc. The invention allows the entities to be tracked; monitored and optimized without input from a user of what type of entity or what type of entity it is (e.g., users, rooms, etc. can be monitored. The present invention uses devices that do not require an electronic connection to the entity and with the ability for one entity to monitor the activity of another entity.
Abstract: When two or more devices are near each other, they are likely to hear the same ambient sounds. To detect such proximity, each device captures a short digital audio signal from its microphone and uploads it to a proximity-detecting service along with a timestamp that indicates when the clip was captured. The proximity-detecting service maintains a history of sound clips for its clients and analyzes recently received sound clips that have similar time stamps. The devices can then be grouped according to the similarities of their sound clips. Devices that are grouped together in this way are deemed to be near each other.
Abstract: A server creates categorization-based application policies and selects a specific policy to send to a mobile communications device. In one embodiment, the mobile communication device applies the categorization-based application policy received from the server to information about a data object (e.g., application) that the device wants to access (or has accessed). Based on the application of the categorization-based policy, the device may be permitted to access the data object or the device may not be permitted to access the data object.
Abstract: An example method includes connecting to a call center by a user equipment (UE) device via a voice call and receiving a request for a current location. The device is determined to be in an outdoor environment if the signal strength of satellite signals used by a global positioning system (GPS) is greater than a threshold. The device is determined to be in an indoor environment if a beacon signal strength is greater than a further threshold. If the device is in an outdoor environment, the current location is determined using a standalone or assisted GPS method. If the device is in an indoor environment, the current location is the known location of the beacon or an assisted GPS method. If neither the signal strength of the satellite signals nor the signal strength of the beacon exceeds its respective threshold, the current location is determined as a last stored location.
Type:
Grant
Filed:
October 17, 2013
Date of Patent:
March 8, 2016
Assignee:
Cellco Partnership
Inventors:
Monica Chitre, Yoganand Rajala, Peter C. Bates, Paul Tuscano, Matt Nadler, Brent Robert Blum
Abstract: Described are devices, methods, techniques and systems for locating a portable services access transceiver (PSAT) for use in aiding emergency “911” services. In one implementation, one or more conditions indicative of movement of a PSAT may initiate a process for obtaining a new estimated location of the PSAT. In another implementation, a location of a PSAT may be determined or updated using indoor navigation techniques.
Abstract: A commercial frequency-modulated (FM) radio signal indoor localization system and method for finding a location of a mobile embedded device (such as a smartphone) within a building. Indoor localization is performed by receiving commercial FM radio signals on the device, analyzing the signals using signal quality metrics, and generating signal quality vectors for each signal and signal quality metric used for the signal. The signal quality metric can be any physical signal quality indicator. The signal quality vectors are added to obtain a current location fingerprint. The current location fingerprint is compared to fingerprints stored in a fingerprint database. The location associated with the stored fingerprint that is the closest match to the current fingerprint location is designated as the current location in the building of the mobile embedded device. Locally generated radio signals can be used in conjunction with the commercial FM radio signals to improve localization accuracy.
Abstract: The invention relates to a method for estimating performance in a mobile network, a method for generating a performance map, use of such methods, a network management system, and a network node in the mobile network for performing the methods. The exemplary method including receiving localized user equipment measurements from a user equipment in the mobile network, including the user equipment measurements in sets and determining at least one antenna characteristics model for the set of user equipment measurements. A path loss model is determined for the user equipment measurements. A localized performance measurement is determined by deducting an estimated antenna impact from the estimated path loss for the user equipment measurement. The operations are repeated to generate a spatial performance map for the mobile network, wherein updates of the spatial performance map are based on further user equipment measurements from the user equipment in the mobile network.
Type:
Grant
Filed:
June 1, 2011
Date of Patent:
February 16, 2016
Assignee:
Optis Cellular Technology, LLC
Inventors:
Fredrik Gunnarsson, Mehdi Amirijoo, Johan Moe
Abstract: Methods, devices and systems for generating enhanced location information on or about a mobile device may include hybrid lateration and/or trilateration solutions in which the mobile device determines whether the mobile device is able to acquire satellite signals and navigation data from a geospatial system, collects location information from a plurality of mobile devices in a communication group in response to determining that the mobile device is not able to acquire satellite signals and navigation data from the geospatial system, computes computing more precise location information (including three-dimensional location and position information) based on the location information collected from the plurality of mobile devices, and using the generated location and position information to provide an enhanced location based service, such as an emergency location service, a commercial location service, an internal location service and/or a lawful intercept location service.
Abstract: A method for selecting a plurality of base stations to position a mobile device is provided. The method includes selecting a plurality of base station sets from the plurality of base stations, wherein each of the plurality of base station sets corresponds to a distance matrix, utilizing a first artificial neural network (ANN) unit to select a predefined number of the plurality of base station sets from the plurality of base station sets according to a plurality of distance matrixes corresponding to the plurality of base station sets; and utilizing a second ANN unit to position the mobile device according to the predefined number of the plurality of base station sets.
Type:
Grant
Filed:
October 16, 2012
Date of Patent:
January 19, 2016
Assignee:
NOVATEK Microelectronics Corp.
Inventors:
Chien-Sheng Chen, Yung-Chuan Lin, Jium-Ming Lin
Abstract: Cooperative stochastic positioning in a mobile environment is provided. Position announcements transmitted wirelessly from objects in the immediate area are received at an object of interest or primary object. The position announcements provide the current position data of the respective object in relation to a common coordinate system. The received position announcements are discretizing to obtain a plurality of data groupings based upon a clustering criteria applied to the received position data. Clustering of the data groupings is performed to determine which clusters dataset from the data groupings provide sufficient and consistent position accuracy to determine a relative position of the primary object. A stochastic automata model is then applied to selected cluster dataset to evaluate relative cluster weights in order to determine the relative position of the object of interest. The accuracy of a current position of the object of interest can then be updated based upon determined relative position.
Abstract: A tracking device and a tracking device control method with intelligent safe zones are provided. The tracking device includes a positioning module, a long-range transceiver, a short-range transceiver and a microcontroller. The microcontroller is configured to provide the long-range transceiver with radio-signal information about a short-range radio signal received by the short-range transceiver. The long-range transceiver transmits the radio-signal information to a server for safe-zone identification of the tracking device and then receives a safe-zone identification result from the server. The microcontroller is further configured to operate the positioning module, the long-range transceiver and the short-range transceiver in accordance with the safe-zone identification result.
Abstract: A radio frequency (RF) system is disclosed. The RF system includes an RF sensor, an analog to digital converter (ADC) module, a processing module, and a synchronization module. The RF sensor measures a parameter of an RF output and generates an RF signal based on the parameter. The ADC module converts samples of the RF signal into digital values. The processing module generates processed values based on the digital values. The synchronization module outputs one of the processed values in response to a transition in the RF output.
Type:
Grant
Filed:
February 7, 2013
Date of Patent:
September 15, 2015
Assignee:
MKS Instruments, Inc.
Inventors:
David J. Coumou, Larry J. Fisk, II, Aaron T. Radomski, Jaehyun Kim, Sang-Won Lee, Jonathan Smyka
Abstract: Methods and systems are disclosed for reducing fraud, waste, and abuse of devices associated with government or business programs. Devices are authenticated based on a first set of data collected from the device, and if authenticated, may be permitted to send or receive service requests based on a second set of data that identifies the user, includes data about the user, identifies the service and/or identifies eligibility criteria. Devices may also be subject to eligibility requirements instituted before, during or after a service request is performed that determine the eligibility of the device and/or the user of the device. Devices may also be subject to filtering requirements administered before or during a service request. Devices may also be subject verification before, during or after one or more service requests.
Abstract: The general field of the invention is that of systems for aiding the guidance of a first aircraft travelling around an airport zone. The system according to the invention comprises: a set of databases comprising bulkiness and performance characteristics of the said first aircraft, geometric and technical characteristics of the airport zone and information about the air traffic in the immediate environment of the said first aircraft; calculation means making it possible to firstly determine a safety zone around the said first aircraft taking into account at least the position of the said aircraft, its size and the uncertainty in the measurement of its position; and then a taxiing indication on the basis of the information arising from the databases and the characteristics of the safety zone; viewing means displaying at least one view of the airport one in which the first aircraft is situated and a representation of the said taxiing indication.
Abstract: A method and system for determining a location of a first device that emits a signal: provide at least three sensors separated and spaced apart from each other; at each of the sensors, receive the signal emitted by the first device; determine the received signals for each of the sensors; determine cross-correlations of the received signals for pairs of the sensors; and determine the location of the first device from the magnitudes of the cross-correlations of the received signals.
Type:
Grant
Filed:
December 1, 2008
Date of Patent:
May 19, 2015
Assignee:
Keysight Technologies, Inc.
Inventors:
Robert Thomas Cutler, Deitrich Werner Vook, Andrew David Fernandez
Abstract: Provided are a method and apparatus for detecting a position of an object using radio frequency identification (RFID). The method includes calculating a position of a moving object using a first RFID tag installed at a particular position in a predetermined space while the moving object is moving, sensing a second RFID tag included in the object, determining the position of the object as the position calculated at a point of time when the RFID tag included in the object is sensed, and displaying the determined position.
Abstract: In certain embodiments, an apparatus comprises an input and one or more processors. The input receives known locations of wireless mobile nodes over a wireless link. The one or more processors determine geometric features associated with the locations, and calculate an apparatus location of the apparatus from the known locations and the geometric features.
Abstract: Methods and systems for utilizing oscillator frequency divider settings as a temperature sensor are described herein. An example method may involve a reader device transmitting an RF signal to a tag device that includes an electronic oscillator configured to generate an oscillator signal with an oscillator frequency and a frequency adjuster configured to adjust the oscillator frequency with a frequency adjustment factor to provide a resulting frequency, the oscillator frequency being dependent on a temperature of the tag device and the resulting frequency being based on a reference frequency provided by the RF signal. The method may also involve the reader device receiving data from the tag device, the data being indicative of the oscillator frequency. The method may further involve the reader device determining an estimate of the temperature of the tag device based on at least the received data and a predetermined relationship between temperature and oscillator frequency.
Type:
Grant
Filed:
May 24, 2013
Date of Patent:
May 5, 2015
Assignee:
Google Inc.
Inventors:
Brian Patrick Otis, Nathan Pletcher, Daniel Yeager
Abstract: A method of determining the appropriateness of satellite orbit modeling is provided. The method includes calculating values of parameters, that the predetermined model has, on the basis of predicted position data including a first predicted position at a first point of time and a second predicted position at a second point of time of a positioning satellite in time series, calculating a first and a second calculated positions of the positioning satellite derived from the predetermined model by using the values of the parameters; and determining the appropriateness of the predetermined model using the values of the parameters, on the basis of first difference between the first predicted position and the first calculated position, and seconded difference between the second predicted position and the second calculated position. The predetermined model is used when approximating a satellite orbit of the poisoning satellite.
Abstract: A system that incorporates the subject disclosure may include, for example, an antenna structure of a base station including an antenna element for communicating with a communication device via radio frequency signals and a circuit coupled to the antenna element. The circuit detects a location of the communication device. The circuit determines from the location of the communication device a first set of coordinates corresponding to an alternate location where an improved quality of communications can be provided to the communication device, and transmits the first set of coordinates to the communication device. Other embodiments are disclosed.
Type:
Application
Filed:
September 19, 2014
Publication date:
April 30, 2015
Inventors:
Robert Giometti, Mark T. Montgomery, Frank M. Caimi, Li Chen, Duane Rabe
Abstract: The present invention relates to systems, methods, and machines for tracking a fluid spill. The method includes obtaining real-time location data for a number of tracking devices from a positioning satellite data repository, integrating the location data of each of the tracking devices into a comprehensive spatial data repository, determining a deployment location for each of the tracking devices, identifying, responsive to the deployment locations, a fluid-spill subset of the tracking devices that were deployed in the fluid spill, determining a fluid spill location based on the geographic locations of the fluid-spill subset, and generating a geographic map depicting the fluid spill location. A new sensor-driven paradigm is used that combines practical data gathering methods with advanced enterprise information technologies.
Abstract: A beacon device is provided in proximity to said entity. A request to locate said entity is triggered on a central control unit. In response to the request to locate said entity, said control unit generates specification data for a unique radio signal identifier, sends an activation request and said specification data to said beacon device, and provides said specification data to a portable device and storing said specification data on the portable device. In response to receiving said activation request, said beacon device sends a radio signal identifier generated from said specification data. Signals are received on said portable device and compared with the specification data stored on the portable device. Based on the results of the comparison by said portable device, information is provided about at least one of a direction and distance to said entity. The location of said entity is detected using said direction information.
Type:
Grant
Filed:
August 9, 2010
Date of Patent:
April 21, 2015
Assignee:
International Business Machines Corporation
Inventors:
Michael Andres, Dirk Bolte, Thomas Hess, Markus Strasser
Abstract: A system for controlling a station operation mode is provided. The system for controlling a station operation mode, including: a distance information generation unit measuring a distance between a first communication station and a second communication station and generating distance information; a distance information comparison unit comparing the distance information and a predetermined threshold distance; and an operation mode determination unit determining any one of an active mode and an idle mode as an operation mode of the second communication station, based on a comparison result of the distance information comparison unit.
Type:
Grant
Filed:
January 24, 2008
Date of Patent:
April 14, 2015
Assignee:
Samsung Electronics Co., Ltd.
Inventors:
Hee Jung Byun, Mi-Sun Do, Jung Min So, Ki-Sun Oh
Abstract: A portable communication device and method provide for determining indoor or outdoor location of the device. The method includes measuring a signal strength of at least one of a location service signal, a RAN signal, and a small coverage area signal that is detectable within a current location of the portable communication device, comparing signal strength to corresponding pre-established signal strength threshold, and obtaining contextual information by accessing sensor data from at least one sensor selected based on a result of the comparing. The method also includes configuring the portable communication device for operation within an outdoor space in response to determining that the portable communication device is transitioning from the indoor space to the outdoor space and configuring the portable device for operation within an indoor space in response to determining the portable device is transitioning from the outdoor space to the indoor space.
Abstract: An alert server is operative to notify users when they are in proximity within one another. The alert server may determine to alert a first user of the proximity of a second user when the second user is in an unusual location. The alert server may determine that the second user is in an unusual location when the second user is outside his or her routine geographic location. The alert server may determine whether the second user is outside his or her routine geographic location by assigning confidence values to geographic locations that the second user has previously visited. The alert sent to the first user may be in the form of a text message, e-mail, or other electronic communication. The first user may receive the alert on a mobile device, such as a cellphone, smartphone, netbook, or other mobile device.
Type:
Grant
Filed:
May 6, 2013
Date of Patent:
April 7, 2015
Assignee:
Google Inc.
Inventors:
Steven Lee, Christopher Lambert, Rohan Seth, Michael Chu, Yuhua Luo
Abstract: Information that is no longer valid due to the passage of time is not provided to a user. When a stock price information server acquires updated stock price information from a securities market network, a message that instructs that a predetermined application be started up and to which a term of validity has been attached is sent to a user terminal over a paging channel via an SMS server. When the user terminal receives the message, it determines whether or not the message is within the term of validity, and if it determines that the message is within the term of validity, starts up the instructed application from among a plurality of applications that are stored. The stock price information server then sends to the user terminal the stock price information that is requested by the started up application.
Abstract: An RFID evaluation system which evaluates an RFID system is disclosed, the RFID evaluation system including a tag position and posture varying unit which accepts a manual operation from an operator to vary a position of an RFID tag and automatically varies a posture of the RFID tag; an antenna unit which transmits a radio signal for testing to the RFID tag and which receives the radio signal transmitted from the RFID tag; and a control unit which, for each combination of the position and the posture of the RFID tag, controls the antenna unit to measure a response radio wave strength of the RFID tag, wherein the control unit includes a position measuring unit which measures the position of the RFID tag; and an information providing unit which provides information for moving the RFID tag to a target position.
Abstract: A system and method for monitoring and tracking the position of a subject comprises, in an exemplary embodiment, a transponder configured for being co-located with the subject and a means for enabling communication between the transponder and a remote GPS-enabled receiver, such as a cell phone or the like, for selectively triangulating the position of the transponder. In the exemplary embodiment, the means for enabling such communication is software that is installed in and executed by the receiver. The software allows the receiver to triangulate the geographic position of the transponder by fixing a first reference point based on the location of the GPS-enabled receiver, fixing a second reference point based on the location of a network broadcast site through which the receiver and transponder communicate, and calculating the location of the transponder based on the angular position of the transponder relative to the network broadcast site.
Type:
Grant
Filed:
December 15, 2011
Date of Patent:
March 24, 2015
Inventors:
Barry Brucker, Nadeepuram K. Ranganathan
Abstract: A combination of active reader tags and ultra wideband (UWB) radar systems provide real-time monitoring of first responders, with identification of each team member using active tags, and detection of victims or other subjects using motion or breathing detection, in a field of operations such as a building affected by fire or hazardous material or search and rescue mission area. Initially, a cluster of miniaturized radars (sensors) act in a static mode of operation, gathering static radar information used to depict a constructed layout of the premises. The cluster of radars then operate in a dynamic mode that detects motion or breathing of multiple subjects inside the field of operations. With dual mode operation the system can read the active tags identification, and by triangulation, display the position of each first responder with its identification and positions of subjects on a composite image of the constructed layout.
Abstract: An apparatus, method and system for geographical tracking entry and/or exiting of an asset into and/or out of a defined geographical boundary and reporting the same. Entry and exit tests compare position fixes with various thresholds and parameters to determine if the asset has entered or exited the geographical boundary. Tests are sequenced such that tests having lower levels of complexity (lower order) are performed before tests having higher levels of complexity (higher order). In this way, most position fixes are processed using computations having a lower order of mathematical complexity than conventionally implemented.
Type:
Grant
Filed:
February 25, 2013
Date of Patent:
March 17, 2015
Assignee:
QUALCOMM Incorporated
Inventors:
Alecsander P. Eitan, Arik S. Mimran, Russell G. Sanders
Abstract: A method and apparatus for controlling location information at a computer device such as a mobile telephone. Location information is intercepted and obtained by, for example, intercepting it from an Application Programming Interface destined for a location application. The location application is identified, and a rule is determined for applying to the location information on the basis of the identified location application. The rule is applied to the location information to give amended location information, and the amended location information is then sent to the location application.
Abstract: Methods and apparatus to visualize locations of radio frequency identification (RFID) tagged items are described. One example method includes receiving a request from a portable electronic device to access product information associated with an individual radio frequency identification (RFID) tagged item, determining a location of the product information in a database, transmitting the located product information to the portable electronic device for display thereon, receiving modified product information associated with the individual RFID tagged item from the portable electronic device, and storing the modified product information to the location of the product information in the database.
Abstract: An information processing apparatus capable of detecting an emergency signal includes a first obtainment unit configured to obtain positional information representing a current position of the information processing apparatus; a selection unit configured to select one of a plurality of broadcast stations using the positional information obtained by the first obtainment unit; a reception unit configured to receive a radio wave signal at a frequency of the broadcast station selected by the selection unit; and a first output unit configured to output an audio signal obtained by demodulating the radio wave signal received by the reception unit.
Abstract: Mobile agents can be deployed to location aware mobile devices within specific regions of interest to achieve specific goals in respect of events occurring in the region of interest. In order to ensure that the agent can persist within the region of interest until the agent goals are achieved, the agent is configured to locate other devices within the region of interest and to propagate itself, by moving or copying itself, to those other devices. When a device hosting the agent exits the region of interest, the agent is terminated, thereby freeing device resources.
Abstract: A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone.
Abstract: Techniques are disclosed for selecting a closest to optimal radar/emitter location for single-ship applications. In accordance with some embodiments, given single-ship geolocation estimates are organized so that clusters of those estimates can be identified, wherein optimal solutions may be found in consecutive, adjacent segments of distance (bins) along each axis of given a coordinate system. Once the clusters are identified in each axis, an optimal cluster can be selected for each. To determine the closest answer to optimal, the coordinate data points in each of the optimal clusters can be averaged (or other sound mathematical process) for each axis in the coordinate system, so as to provide an optimal 3-D coordinate in the given coordinate system. In other embodiments, the optimal 3-D coordinate can be further used to establish an origin in a second coordinate system (e.g., for conversion from 3-D to 2-D coordinate system).
Type:
Grant
Filed:
June 14, 2012
Date of Patent:
February 24, 2015
Assignee:
BAE Systems Information and Electronic Systems Integration Inc.
Abstract: An echo signal processing device is provided. The device includes an image generating module configured to generate an echo image at a plurality of timings, the echo image generated based on echo signals received by an antenna installed in a movable body. The device also includes a positional information acquiring module configured to acquire absolute positional information of the movable body. The device also includes an analytic area specifying module configured to specify an analytic area in the echo image by an absolute position, based on the absolute positional information. The device also includes a storage configured to store analytic area images, each analytic area images being a part of each echo image, the part corresponding to the analytic area. The device also includes a calculating module configured to calculate echo signal information regarding the echo signals from the analytic area, based on the stored analytic area images.
Abstract: An animal tracking system may include an actuator with a generator that creates electrical energy upon motion of the actuator. The system may utilize the electrical energy to transmit a signal to determine the location of an animal. The system also utilizes the electrical energy to notify the animal when it reaches a predefined location.
Abstract: Provided are a terminal positioning method, device and system, the method comprising: receiving three-dimensional positioning measurement information transmitted by a terminal; and acquiring the three-dimensional position information of the terminal according to the three-dimensional positioning measurement information.
Abstract: An IC tag searching apparatus capable of changing the shape of its searching board in a simple manner in accordance with the situations of a location to be searched, said location includes wide to narrow areas and areas in the corners, at the time of searching the positions of wireless IC tags those which are embedded in a concrete construction and the like, efficiently detecting the positions of the embedded wireless IC tags and performing reading and writing of information from/to the wireless IC tags is provided. The IC tag searching apparatus 10 according to the present invention comprises a plurality of plate members 2, 3 each having an antenna built-in, said plate members may be joined with each other in a direction of those flat surfaces, respectively, a joining means provided to the plate members having an antenna built-in and information transmission/reception section 11 for performing data transmission/reception between the plate member having an antenna built-in and the R/W main body 9.
Abstract: Measuring a location of a communication terminal using a wireless local area access point based on location coordinates of the access points and location information of a nearby lamp.