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公开(公告)号：KR1020130024398A
公开(公告)日：2013-03-08
申请号：KR1020110087833
申请日：2011-08-31
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: G01C21/12 , G01S5/0247 , H04W64/006
Abstract: PURPOSE: A method and a device for determining a heading angle of a wireless LAN are provided to prevent the accumulation of PDR position errors by using a heading angle detecting algorithm based on a wireless LAN even in a GPS shadow region and to accurately determine the information of a user position. CONSTITUTION: A device for determining a heading angle of a wireless LAN comprises modems(710,715), a control unit(720), and a memory unit(730). The modems perform communication with other nods. The control unit test whether the rotation of a user is sensed or not by using the modems. A moving direction vector is obtained when sensing the rotation of the user, and the heading angle is obtained by using the obtained moving direction vector. The memory unit records signal intensity according to distances to reference points and signal intensity according to a distance to an AP. [Reference numerals] (710) Modem 1; (715) Modem 2; (720) Control unit; (730) Memory unit; (740) Positioning unit
Abstract translation: 目的：提供一种用于确定无线LAN的航向角的方法和装置，以便即使在GPS影像区域中也使用基于无线LAN的方位角检测算法来防止PDR位置误差的累积，并且准确地确定信息 的用户位置。 构成：用于确定无线LAN的航向角的装置包括调制解调器（710,715），控制单元（720）和存储单元（730）。 调制解调器与其他点头进行通信。 控制单元通过使用调制解调器来测试是否感测到用户的旋转。 当感测到用户的旋转时获得移动方向矢量，并且通过使用获得的移动方向矢量获得方位角。 存储单元根据到AP的距离记录与参考点的距离和信号强度的信号强度。 （附图标记）（710）调制解调器1; （715）调制解调器2; （720）控制单元; （730）存储单元; （740）定位单元
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公开(公告)号：KR1020120005701A
公开(公告)日：2012-01-17
申请号：KR1020100066296
申请日：2010-07-09
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: G01C22/006 , G06F1/1626 , G06F1/163 , G06F1/1694 , G06F3/017 , G06F3/0346 , H04B1/40 , G01C22/00 , G01P15/14 , G01S19/01 , H04W4/00 , H04W8/00 , H04W48/18 , H04W64/00 , H04W76/10 , H04W88/06
Abstract: PURPOSE: A method for estimating the stride of a pedestrian and portable terminal thereof are provided to apply a stride estimation algorithm according to the location of a portable terminal through an acceleration sensor. CONSTITUTION: An acceleration sensor(21) detects acceleration by the movement of a portable terminal. A velocity sensor(22) detects velocity by the movement of the portable terminal. A control unit(26) determines the size of a swing operation of the portable terminal in the use of acceleration or velocity. The control unit estimates the stride of a pedestrian according to the location of the portable terminal.
Abstract translation: 目的：提供一种用于估计步行者和便携式终端的步幅的方法，以便通过加速度传感器根据便携式终端的位置应用步幅估计算法。 构成：加速度传感器（21）通过便携式终端的移动来检测加速度。 速度传感器（22）通过便携式终端的移动来检测速度。 控制单元（26）在使用加速度或速度时确定便携式终端的摆动操作的大小。 控制单元根据便携式终端的位置估计步行者的步幅。
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公开(公告)号：KR1020090087300A
公开(公告)日：2009-08-17
申请号：KR1020080012664
申请日：2008-02-12
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: G01C21/32 , G01C21/12 , G01C21/3667 , G01S19/14 , G08G1/0969
Abstract: A map matching apparatus of the navigation for pedestrians using dead reckoning and a method thereof are provided to minimize accumulative influence of error caused by the dead reckoning by matching map by correcting the matched location to a new initial position. A map matching apparatus(100) of the navigation for pedestrians using dead reckoning comprises a dead reckoning part(110), a current position estimating part(120), a link selection part(130), a matching part(140). The dead reckoning part estimates traveling direction and relative translation distance from initial position. The current position estimating part estimates the current position by reflecting the traveling direction and the relative translation distance. The link selection part selects the matched link from a map including the current position. The matching part indicates the current position on the link by matching the current position. The map matching device matches the map by setting up the location matched on the link at the new initial position.
Abstract translation: 提供使用航位推算的行人导航的地图匹配装置及其方法，以通过将匹配的位置校正到新的初始位置来最小化通过匹配地图的航位推算造成的误差的累积影响。 用于使用航位推算的行人的导航的地图匹配装置（100）包括航位推算部（110），当前位置估计部（120），链接选择部（130），匹配部（140）。 航位推算部分估计距离初始位置的行驶方向和相对平移距离。 当前位置估计部通过反映行进方向和相对平移距离来估计当前位置。 链路选择部分从包括当前位置的映射中选择匹配的链路。 匹配部分通过匹配当前位置来指示链接上的当前位置。 地图匹配设备通过在新的初始位置设置在链接上匹配的位置来匹配地图。
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公开(公告)号：KR1020090082711A
公开(公告)日：2009-07-31
申请号：KR1020080008632
申请日：2008-01-28
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: G01C22/006 , A61B5/112 , A63B2220/22 , G01C21/00 , G01S19/13
Abstract: A method and a system of step length estimation in the pedestrian navigation system are provided to estimate pedestrian's step length on a real time basis by estimating pedestrian's travelling distance on a real time basis through using a GPS receiver. A method of step length estimation in the pedestrian navigation system comprises following steps. A pedestrian's step frequency and acceleration dispersion are produced by using acceleration data obtained from an acceleration sensor(S200). The pedestrian's travelling distance is produced by using GPS data obtained from a GPS receiver(S210). The pedestrian's step length is estimated by using the calculated step frequency, and the acceleration dispersion and travelling distance.
Abstract translation: 提供了一种行人导航系统中的步长估计方法和系统，通过使用GPS接收机，通过实时估计行人的行驶距离，实时地估计行人的步长。 步行导航系统中的步长估计方法包括以下步骤。 通过使用从加速度传感器获得的加速度数据来生成步行频率和加速度分散（S200）。 通过使用从GPS接收器获得的GPS数据来生成行人的行驶距离（S210）。 通过使用计算出的步进频率和加速度色散和行驶距离来估计行人的步长。
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公开(公告)号：KR100827076B1
公开(公告)日：2008-05-02
申请号：KR1020060106916
申请日：2006-10-31
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: G01C22/006 , A61B5/112 , A61B5/1123 , A61B5/6804 , A61B5/6831 , A61B2562/0219
Abstract: An apparatus and a method for measuring a walking distance are provided to determine a mounting position thereof according to whether a walking is detected based on an output signal from a gyro-sensor. An apparatus for measuring a walking distance includes a walking detector(32), a mounting position detector(34), and a walking distance estimator(36). The walking detector is supplied with outputs from an accelerator(20) and a gyro-sensor(40) and detects walking with an acceleration signal and an angular signal from the gyro-sensor. The accelerator is capable of detecting acceleration on at least two axes. The gyro-sensor outputs an angular velocity on roll, pitch, and yaw axes. A mounting position detector determines the position of a portable terminal based on the walking detection. The walking distance estimator estimates the walking distance using coefficient of walking distance estimation parameter which is different according to the position of the portable terminal.
Abstract translation: 提供了一种用于测量步行距离的装置和方法，以根据来自陀螺传感器的输出信号是否检测到行走来确定其安装位置。 用于测量步行距离的装置包括步行检测器（32），安装位置检测器（34）和步行距离估计器（36）。 行走检测器由加速器（20）和陀螺传感器（40）提供输出，并且利用来自陀螺传感器的加速度信号和角度信号来检测步行。 加速器能够检测至少两个轴上的加速度。 陀螺传感器在滚动，俯仰和偏航轴上输出角速度。 安装位置检测器基于步行检测器确定便携式终端的位置。 步行距离估计器使用根据便携式终端的位置不同的步行距离估计参数的系数来估计步行距离。
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Patent Agency Ranking
公开(公告)号：KR100630156B1
公开(公告)日：2006-10-02
申请号：KR1020050087110
申请日：2005-09-16
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
IPC: G01P15/00
Abstract: A method and an apparatus for detecting a step in a personal navigator are provided to increase operation reliability of the personal navigator by recognizing separately a normal step and a marking time. An apparatus for detecting a step in a personal navigator includes an accelerometer(110) and a step detector(120). The accelerometer outputs acceleration signals in at least two directions as a user moves. The step detector calculates variations in the acceleration signals in at least two directions, adds the calculated variations, and determines whether the step is a normal step or a marking time based on the comparison between the added variation and a predetermined threshold value. The personal navigator calculates the number of normal steps and the number of marking times.
Abstract translation: 提供了一种用于检测个人导航器中的步骤的方法和装置，以通过分别识别正常步骤和标记时间来提高个人导航器的操作可靠性。 一种用于检测个人导航器中的步骤的装置包括加速度计（110）和步进检测器（120）。 加速度计在用户移动时至少在两个方向上输出加速度信号。 台阶检测器计算至少两个方向上的加速度信号的变化，将计算出的变化相加，并基于增加的变化与预定阈值之间的比较来确定步骤是正常步骤还是标记时间。 个人导航仪计算正常步数和标记次数。
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公开(公告)号：KR101796322B1
公开(公告)日：2017-12-01
申请号：KR1020110001990
申请日：2011-01-07
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
Abstract: 본발명은보행자단말의위치측정방법에있어서, 주변 GPS 위성을검색하는과정과, 상기검색된 GPS 위성중 적어도하나로부터의사거리정보(Pseudo range)를수신하고, 필터를이용하여상기수신된의사거리정보의오차를검출하여보정하고, 보정된의사거리정보를저장하는과정과, 상기보행자의걸음검출에기반하여보행자단말의변위를계산하는과정과, 상기보정된의사거리정보를이용하여상기계산된보행자단말의변위를보정하는과정과, 상기보정된변위를이용하여상기보행자단말의위치를측정하는과정을포함함을특징으로한다.
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公开(公告)号：KR1020120001925A
公开(公告)日：2012-01-05
申请号：KR1020100062557
申请日：2010-06-30
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: G01C22/006
Abstract: PURPOSE: A waking state estimating apparatus and method for estimation of step length using a portable terminal are provided to improve the accuracy of step length estimation in a portable terminal. CONSTITUTION: A waking state estimating method for estimation of step length using a portable terminal comprises a step(505) of setting an observation row using estimated temporary step length, acceleration distribution, and step frequency, a step of creating an observation probability vector, which includes probabilities according to walking state based on the observation row, a step of calculating the final probabilities according to walking state by multiplying the observation probability vector by one or more of state transition probability vectors, a step(507) of determining a walking state having the maximum final probability as the final walking state, and a step(509) of estimating the temporary step length using integral parameters.
Abstract translation: 目的：提供一种用于使用便携式终端估计步长的唤醒状态估计装置和方法，以提高便携式终端中的步长估计的精度。 构成：使用便携式终端来估计步长的醒状状态估计方法包括使用估计的临时步长，加速度分布和步进频率设定观察行的步骤（505），创建观察概率向量的步骤，其中 包括根据观察行的行走状态的概率，通过将观察概率向量乘以一个或多个状态转移概率向量，根据步行状态计算最终概率的步骤，确定具有 作为最终步行状态的最大最终概率，以及使用积分参数估计临时步长的步骤（509）。
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公开(公告)号：KR100819283B1
公开(公告)日：2008-04-02
申请号：KR1020060120653
申请日：2006-12-01
Applicant: 삼성전자주식회사 , 재단법인서울대학교산학협력재단
IPC: H04B1/40
CPC classification number: A61B5/726 , A61B5/1121 , A61B2562/0219 , H04M1/72536
Abstract: A method for detecting a user's falling down and a portable terminal therefor are provided to obtain low-frequency components during a wavelet resolution process, and to detect the user's falling down based on the low-frequency components, thereby notifying the user's acquaintance of the user's falling down by automatically sensing the falling down. An accelerometer(20) senses and outputs an acceleration signal at more than one axis. A square sum signal generator(32) squares signals at each axis of the accelerometer, and sums up the squared signals to generate square sum signals. A wavelet resolution unit(34) performs a wavelet resolution process for the square sum signals, and outputs wavelet-resolved signals. A falling-down detector(36) decides on a user's falling down based on the wavelet-resolved signals.
Abstract translation: 提供一种用于检测用户下降的方法及其便携式终端，以在小波解析过程中获得低频分量，并且基于低频分量来检测用户的下降，从而通知用户对用户的下降 通过自动感应跌落来坠落。 加速度计（20）感测并输出多于一个轴的加速度信号。 平方和信号发生器（32）在加速度计的每个轴处对信号进行平方并对平方信号求和以产生平方和信号。 小波分解单元（34）对平方和信号进行小波分解处理，并输出小波分解信号。 下降检测器（36）基于小波分解信号来决定用户的下降。
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