公开(公告)号：US20100265093A1

公开(公告)日：2010-10-21

申请号：US12741937

申请日：2008-08-29

申请人： Seong Yun Cho ,  Byung Doo Kim ,  Young Su Cho ,  Wan Sik Choi ,  Jong-Hyun Park

发明人： Seong Yun Cho ,  Byung Doo Kim ,  Young Su Cho ,  Wan Sik Choi ,  Jong-Hyun Park

IPC分类号： G08B5/22

CPC分类号： H04W24/00 ,  G01S5/0252 ,  H04W64/00 ,  H04W88/08

摘要： The present invention relates to a method of automatically generating a fingerprint database for indoor wireless location. For this purpose, the present invention provides a method of generating a fingerprint database that determines a method of calculating the strength of signals transmitted from a plurality of access points, calculates the strength of signals at nodes of a plurality of vertical and horizontal grids set in an indoor space, and generates a database table by using the location information about the nodes and the calculated strength of the signals. Further, the present invention provides an environment analysis tool including a communication module that performs communication between at least one of the access points and a receiving terminal, an environment analysis module that calculates the strength of a signal at a specific location by using a method of calculating strength and generates a fingerprint database table, and a fingerprint database that stores the fingerprint database table. According to the present invention, it is possible to reduce time and manpower required to build a fingerprint database, and to easily build a new fingerprint database even though an indoor structure is changed.

摘要翻译： 本发明涉及一种自动生成室内无线定位指纹数据库的方法。 为此，本发明提供一种生成指纹数据库的方法，该指纹数据库确定计算从多个接入点发送的信号的强度的方法，计算在多个垂直和水平网格中设置的多个垂直和水平网格的节点处的信号的强度 通过使用关于节点的位置信息和计算出的信号强度来生成数据库表。 此外，本发明提供一种环境分析工具，其包括执行至少一个接入点和接收终端之间的通信的通信模块，环境分析模块，其通过使用以下方法计算特定位置处的信号的强度： 计算强度并生成指纹数据库表，以及存储指纹数据库表的指纹数据库。 根据本发明，可以减少构建指纹数据库所需的时间和人力，并且即使改变室内结构，也可以容易地构建新的指纹数据库。

公开(公告)号：US20100265092A1

公开(公告)日：2010-10-21

申请号：US12741935

申请日：2008-08-20

申请人： Byung Doo Kim ,  Seong Yun Cho ,  Young Su Cho ,  Wan Sik Choi

发明人： Byung Doo Kim ,  Seong Yun Cho ,  Young Su Cho ,  Wan Sik Choi

IPC分类号： G08B5/22

CPC分类号： H04W64/003

摘要： The present invention relates to a location measuring method using an access point, and an apparatus using the same. According to the present invention, a location of a terminal is estimated by using a signal strength received from an access point installed at a known position in a wireless network, and location of the access point installed at an unknown position is estimated by using a signal strength received from the access point installed in the unknown position and estimated location information of the terminal. In addition, a location of the terminal is finally calculated by using estimated location information of the access point installed at the known position. As described, the location of the terminal is determined by using estimated location information of an AP that is randomly installed by a user (that is, installed at an unknown position), and therefore a location of an AP installed in an area where it is difficult to measure and availability of location measurement can be improved. In addition, a signal strength measurement value, estimation location information of an AP installed at a known position, and estimation location information of an AP installed at an unknown position are used for location information calculation of a terminal, and accordingly, accuracy of the location measure can be improved.

摘要翻译： 本发明涉及使用接入点的位置测量方法及其使用方法。 根据本发明，通过使用从安装在无线网络中的已知位置的接入点接收到的信号强度来估计终端的位置，并且通过使用信号来估计安装在未知位置的接入点的位置 强度从接入点接收到的安装在未知位置和终端的估计位置信息。 此外，终端的位置最终通过使用安装在已知位置的接入点的估计位置信息来计算。 如上所述，通过使用由用户随机安装的AP（即，安装在未知位置）的估计位置信息来确定终端的位置，并且因此安装在其所在区域中的AP的位置 难以测量和可用性的位置测量可以提高。 此外，信号强度测量值，安装在已知位置的AP的估计位置信息以及安装在未知位置的AP的估计位置信息被用于终端的位置信息计算，因此，位置的精度 措施可以改善。

公开(公告)号：US08787930B2

公开(公告)日：2014-07-22

申请号：US13286716

申请日：2011-11-01

申请人： Uzair Ahmad ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

发明人： Uzair Ahmad ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

IPC分类号： H04W24/00

CPC分类号： H04W64/003 ,  G01S5/0242 ,  G01S5/14 ,  G01S11/06 ,  H04W24/10

摘要： A method and apparatus for estimating a position of an access point (AP) includes (a) measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), (b) selecting an imaginary attenuation factor, (c) calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, (d) calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, (e) calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the steps (c) and (d) while changing the imaginary attenuation factor, and (f) estimating the best intersecting point as the position of the AP.

摘要翻译： 用于估计接入点（AP）的位置的方法和装置包括：（a）在三个或更多个测量点（MP）处测量由AP发送的信号的强度，（b）选择虚拟衰减因子， （c）基于虚拟衰减因子和在MP处测量的信号的强度来计算AP和每个MP之间的范围，（d）计算测距圆的交点，每个测距圆的位置 MP是中心，MP和AP之间的范围是半径，（e）从重复步骤（c）和（d）获得的多个交点中计算最佳相交点，同时改变虚构 衰减因子，（f）估计最佳相交点作为AP的位置。

公开(公告)号：US20120122475A1

公开(公告)日：2012-05-17

申请号：US13286716

申请日：2011-11-01

申请人： Uzair Ahmed ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

发明人： Uzair Ahmed ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

IPC分类号： H04W24/00

CPC分类号： H04W64/003 ,  G01S5/0242 ,  G01S5/14 ,  G01S11/06 ,  H04W24/10

摘要： A method and apparatus for estimating a position of an access point (AP) in a Wi-Fi system is provided. The method includes measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), selecting an imaginary attenuation factor, calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the calculating the range and the calculating the intersecting point of ranging circles while changing the imaginary attenuation factor, and estimating the best intersecting point as the position of the AP.

摘要翻译： 提供了一种用于估计Wi-Fi系统中接入点（AP）的位置的方法和装置。 该方法包括测量由AP发送的信号在三个或更多个测量点（MP）处的强度，选择虚拟衰减因子，基于虚拟衰减因子计算AP与每个MP之间的范围 以及在MP处测量的信号的强度，计算MP中的每个位置为中心的测距圆的交点，MP与AP之间的范围为半径，从其中计算最佳相交点，从 通过重复计算范围而获得的多个交点，并且在改变虚拟衰减因子的同时计算测距圆的相交点，并且估计最佳相交点作为AP的位置。

公开(公告)号：US08825393B2

公开(公告)日：2014-09-02

申请号：US13324716

申请日：2011-12-13

申请人： Young Su Cho ,  Sung Jo Yun ,  Myung In Ji

发明人： Young Su Cho ,  Sung Jo Yun ,  Myung In Ji

IPC分类号： G01C21/36

CPC分类号： G01C21/367

摘要： A method for providing a location service and a mobile terminal are provided. The location service providing method includes determining a positioning method based on location information of the mobile terminal and measurement information used for calculating the location of the mobile terminal, determining a map switch indicator by using at least one of the determined positioning method, the location information, and the measurement information, selecting a global map (i.e., the whole area map) or a local map according to the determined map switch indicator, and indicating the location of the mobile terminal on the selected map.

摘要翻译： 提供了一种用于提供定位服务和移动终端的方法。 位置服务提供方法包括基于移动终端的位置信息和用于计算移动终端的位置的测量信息确定定位方法，通过使用所确定的定位方法，位置信息中的至少一个来确定地图切换指示符 ，以及测量信息，根据所确定的地图切换指示器选择全局地图（即，整个地图）或本地地图，并且指示移动终端在所选地图上的位置。