System and method for determining the geographic location of a device
    1.
    发明授权
    System and method for determining the geographic location of a device 有权
    用于确定设备的地理位置的系统和方法

    公开(公告)号:US08374784B2

    公开(公告)日:2013-02-12

    申请号:US13197126

    申请日:2011-08-03

    IPC分类号: G01C21/00

    CPC分类号: G01S19/50

    摘要: A method and apparatus for estimating a location of a device. For each of a plurality of locations of a device, a set of positional data is determined from signals received from a plurality of satellites. The positional data is filtered and compared with data from a road network database. This comparison may be a function of a distance from at least one point defined by a set of the filtered positional data to a road in the road network database and an angle between a line representing a best fit for plural points defined by corresponding plural sets of the filtered positional data to a line defined by a road in the road network database.

    摘要翻译: 一种用于估计设备的位置的方法和装置。 对于装置的多个位置中的每一个,根据从多个卫星接收的信号来确定一组位置数据。 对位置数据进行过滤,并与道路网数据库的数据进行比较。 该比较可以是距离由一组经过滤的位置数据至道路网数据库中的道路所定义的至少一个点的距离的函数,以及表示对应于多个组 将过滤的位置数据提供给由道路网数据库中的道路定义的线。

    System and method for predicting location accuracy of a mobile unit
    2.
    发明授权
    System and method for predicting location accuracy of a mobile unit 有权
    用于预测移动单元的位置精度的系统和方法

    公开(公告)号:US08280384B2

    公开(公告)日:2012-10-02

    申请号:US12019575

    申请日:2008-01-24

    IPC分类号: H04W40/00

    摘要: The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular calibration points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Sets of calibration points may be evaluated as a function of parameters of the calibration data, and a set of calibration points may be selected as a function of a predetermined criteria. Signal reception in the region may be estimated as a function of mobile device location in the region and an approximate statistical accuracy of a signal strength pattern determined as a function of the estimated signal reception. An expected accuracy of a location system may then be modeled in the region as a function of system configuration information and determined approximate statistical accuracy.

    摘要翻译: 可以使用至少部分地,一个或多个预先存在的网络测量报告(NMR)来估计无线移动设备的位置,所述网络测量报告(NMR)包括地理区域内的多个位置的校准数据。 收集和分析这些位置的校准数据,使得可以确定地理区域内的特定校准点并且与例如一个或多个NMR的特定的校准数据集合相关联。 可以将校准点的集合评估为校准数据的参数的函数,并且可以根据预定标准来选择一组校准点。 该区域中的信号接收可以被估计为该区域中的移动设备位置的函数,以及根据估计的信号接收确定的信号强度模式的近似统计精度。 然后可以根据系统配置信息和确定的近似统计准确度,在该区域中对位置系统的期望精度进行建模。

    SYSTEM AND METHOD FOR OPTIMIZING LOCATION ESTIMATE OF MOBILE UNIT
    3.
    发明申请
    SYSTEM AND METHOD FOR OPTIMIZING LOCATION ESTIMATE OF MOBILE UNIT 有权
    优化移动单元位置估计的系统和方法

    公开(公告)号:US20080188242A1

    公开(公告)日:2008-08-07

    申请号:US12014018

    申请日:2008-01-14

    IPC分类号: H04Q7/22

    摘要: The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Embodiments of the present subject matter also provide a method of improving a location estimate of a mobile device. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be evaluated and/or compared with the characteristics associated with the various grid points to estimate the location of the mobile device.

    摘要翻译: 可以至少部分地使用包括地理区域内的多个位置的校准数据的一个或多个预先存在的网络测量报告(“NMR”)来估计无线移动设备的位置。 收集和分析这些位置的校准数据,使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 本主题的实施例还提供了一种改进移动设备的位置估计的方法。 可以对要由其确定位置估计的移动装置报告的接收信号电平测量结果可与各种网格点相关联的特性进行评估和/或比较,以估计移动装置的位置。

    SYSTEM AND METHOD FOR GENERATING A LOCATION ESTIMATE USING NON-UNIFORM GRID POINTS
    4.
    发明申请
    SYSTEM AND METHOD FOR GENERATING A LOCATION ESTIMATE USING NON-UNIFORM GRID POINTS 有权
    用于生成使用非均匀网格点的位置估计的系统和方法

    公开(公告)号:US20080188236A1

    公开(公告)日:2008-08-07

    申请号:US12019509

    申请日:2008-01-24

    IPC分类号: H04Q7/20 H04B17/00

    摘要: The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be compared with the data associated with the various grid points to estimate the location of the mobile device.

    摘要翻译: 可以至少部分地使用包括地理区域内的多个位置的校准数据的一个或多个预先存在的网络测量报告(“NMR”)来估计无线移动设备的位置。 收集和分析这些位置的校准数据,使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 可以将要确定位置估计的移动设备报告的接收信号电平测量值与与各个网格点相关联的数据进行比较,以估计移动设备的位置。

    METHOD TO MODIFY CALIBRATION DATA USED TO LOCATE A MOBILE UNIT
    5.
    发明申请
    METHOD TO MODIFY CALIBRATION DATA USED TO LOCATE A MOBILE UNIT 有权
    修改用于定位移动单元的校准数据的方法

    公开(公告)号:US20080186234A1

    公开(公告)日:2008-08-07

    申请号:US12026333

    申请日:2008-02-05

    IPC分类号: G01S1/00

    摘要: A method of modifying calibration data used to geo-locate a mobile station located in an indoor environment is disclosed. When a mobile station is located indoors, the signal strength of signals received and/or transmitted by the mobile station have the tendency to be lower than the strength of the signals received by a mobile station located outdoors. As a result of these lower signal strengths, geo-location efforts which rely on signal strengths may result in unsatisfactory location accuracy. Modifying pre-existing calibration data obtained outdoors may provide a way to simulate indoor calibration data characteristics.

    摘要翻译: 公开了一种修改用于对位于室内环境中的移动台进行地理定位的校准数据的方法。 当移动台位于室内时,由移动台接收和/或发送的信号的信号强度倾向于低于由位于室外的移动台接收到的信号的强度。 由于这些较低的信号强度,依靠信号强度的地理定位工作可能导致不能令人满意的定位精度。 修改户外获得的现有校准数据可以提供一种模拟室内校准数据特性的方法。

    System and Method for Generating a Location Estimate Using A Method of Intersections
    6.
    发明申请
    System and Method for Generating a Location Estimate Using A Method of Intersections 有权
    使用交点方法生成位置估计的系统和方法

    公开(公告)号:US20120302252A1

    公开(公告)日:2012-11-29

    申请号:US13302754

    申请日:2011-11-22

    IPC分类号: H04W24/10

    摘要: The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Regions may be defined as a function of any number of parameters and respective predetermined ranges thereof in the NMRs. An intersection of these defined regions may be determined and the location of a mobile device may be estimated as a function of the intersection.

    摘要翻译: 可以使用至少部分地,一个或多个预先存在的网络测量报告(NMR)来估计无线移动设备的位置,所述网络测量报告(NMR)包括地理区域内的多个位置的校准数据。 收集和分析这些位置的校准数据,使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 区域可以被定义为NMR中任何数量的参数及其各自的预定范围的函数。 可以确定这些定义的区域的交集,并且可以将移动设备的位置估计为交点的函数。

    System and method for optimizing location estimate of mobile unit
    7.
    发明授权
    System and method for optimizing location estimate of mobile unit 有权
    优化移动单元位置估计的系统和方法

    公开(公告)号:US08311018B2

    公开(公告)日:2012-11-13

    申请号:US12014018

    申请日:2008-01-14

    IPC分类号: H04J3/00

    摘要: The location of a wireless mobile device may be estimated using, at least in part, one or more pre-existing Network Measurement Reports (“NMRs”) which include calibration data for a number of locations within a geographic region. The calibration data for these locations is gathered and analyzed so that particular grid points within the geographic region can be determined and associated with a particular set or sets of calibration data from, for example, one or more NMRs. Embodiments of the present subject matter also provide a method of improving a location estimate of a mobile device. Received signal level measurements reported by a mobile device for which a location estimate is to be determined may be evaluated and/or compared with the characteristics associated with the various grid points to estimate the location of the mobile device.

    摘要翻译: 可以使用至少部分地,一个或多个预先存在的网络测量报告(NMR)来估计无线移动设备的位置,所述网络测量报告(NMR)包括地理区域内的多个位置的校准数据。 收集和分析这些位置的校准数据,使得可以确定地理区域内的特定网格点并且与例如一个或多个NMR的特定的校准数据集合相关联。 本主题的实施例还提供了一种改进移动设备的位置估计的方法。 可以对要由其确定位置估计的移动装置报告的接收信号电平测量结果可与各种网格点相关联的特性进行评估和/或比较,以估计移动装置的位置。

    METHOD TO MODIFY CALIBRATION DATA USED TO LOCATE A MOBILE UNIT
    8.
    发明申请
    METHOD TO MODIFY CALIBRATION DATA USED TO LOCATE A MOBILE UNIT 有权
    修改用于定位移动单元的校准数据的方法

    公开(公告)号:US20090201207A1

    公开(公告)日:2009-08-13

    申请号:US12424320

    申请日:2009-04-15

    IPC分类号: G01S3/02

    摘要: A method of modifying calibration data used to geo-locate a mobile station located in an indoor environment is disclosed. When a mobile station is located indoors, the signal strength of signals received and/or transmitted by the mobile station have the tendency to be lower than the strength of the signals received by a mobile station located outdoors. As a result of these lower signal strengths, geo-location efforts which rely on signal strengths may result in unsatisfactory location accuracy. Modifying pre-existing calibration data obtained outdoors may provide a way to simulate indoor calibration data characteristics.

    摘要翻译: 公开了一种修改用于对位于室内环境中的移动台进行地理定位的校准数据的方法。 当移动台位于室内时,由移动台接收和/或发送的信号的信号强度倾向于低于由位于室外的移动台接收到的信号的强度。 由于这些较低的信号强度,依靠信号强度的地理定位工作可能导致不能令人满意的定位精度。 修改户外获得的现有校准数据可以提供一种模拟室内校准数据特性的方法。

    SYSTEM AND METHOD TO COLLECT AND MODIFY CALIBRATION DATA
    9.
    发明申请
    SYSTEM AND METHOD TO COLLECT AND MODIFY CALIBRATION DATA 有权
    收集和修改校准数据的系统和方法

    公开(公告)号:US20080189321A1

    公开(公告)日:2008-08-07

    申请号:US12026372

    申请日:2008-02-05

    IPC分类号: G06F17/30 G01S1/00

    摘要: A system and method modifies calibration data used to geo-locate a mobile station. Calibration data measured via a calibration data collection device may contain errors due to the physical limitations of the collection device and/or the collection process. Any data collection device may produce some degree of signal degradation or drop-out. Dead reckoning provides a remedy for signal drop-out, however, it often produces data results that may be unsatisfactory to perform an accurate location estimate. To ensure the integrity of the collected calibration data, a data modification and/or data replacement algorithm may be implemented to enhance the accuracy of the collected data. In addition, current collection procedures used to generate a calibration database may be laborious, time-consuming and expensive. Simplifying the test and measurement equipment needed, and the procedures for obtaining calibration data may save time and expenses.

    摘要翻译: 系统和方法修改用于对移动台进行地理定位的校准数据。 通过校准数据收集装置测量的校准数据可能由于收集装置的物理限制和/或收集过程而包含错误。 任何数据采集设备可能会产生一定程度的信号劣化或丢失。 航位推算为信号丢失提供了补救措施,但是,它经常产生可能不能令人满意地执行准确位置估计的数据结果。 为了确保收集的校准数据的完整性,可以实施数据修改和/或数据替换算法以增强收集的数据的准确性。 此外,用于生成校准数据库的当前收集程序可能是费力,耗时且昂贵的。 简化所需的测试和测量设备,以及获取校准数据的程序可节省时间和费用。

    SYSTEM AND METHOD TO OBTAIN CALIBRATION DATA USING ESTIMATION TECHNIQUES
    10.
    发明申请
    SYSTEM AND METHOD TO OBTAIN CALIBRATION DATA USING ESTIMATION TECHNIQUES 有权
    使用估计技术获取校准数据的系统和方法

    公开(公告)号:US20080188245A1

    公开(公告)日:2008-08-07

    申请号:US12026364

    申请日:2008-02-05

    IPC分类号: H04Q7/20

    摘要: A system and method of determining calibration data at non-calibrated location points is disclosed. A mobile station may be geo-located at most locations, if not all locations, within communication range of one or more serving and/or neighboring base stations of a mobile network. Calibration data may be collected and stored in memory via a data collection procedure. Known calibration data for locations proximate to the mobile station may be necessary when attempting to geo-locate the mobile station. A geographical region may be calibrated via a standard calibration data collection procedure, however, various obstacles, such as, buildings, mountains, ponds etc. may inevitably create deficiencies in the calibration data for one or more areas of the region. Certain techniques may be applied to estimate the calibration data of areas that have not been properly calibrated.

    摘要翻译: 公开了一种在非校准位置点确定校准数据的系统和方法。 移动站可以在移动网络的一个或多个服务和/或相邻基站的通信范围内的大多数位置(如果不是全部的位置)处于地理位置。 可以通过数据采集程序收集校准数据并将其存储在存储器中。 当尝试对移动站进行地理定位时,可能需要用于邻近移动站的位置的已知校准数据。 可以通过标准校准数据收集程序来校准地理区域,然而,诸如建筑物,山脉,池塘等各种障碍物可能不可避免地在该区域的一个或多个区域的校准数据中产生缺陷。 可以应用某些技术来估计未正确校准的区域的校准数据。