公开(公告)号：US08330654B2

公开(公告)日：2012-12-11

申请号：US12752693

申请日：2010-04-01

申请人： Chi-Chung Lo ,  Sheng-Po Kuo ,  Jui-Hao Chu ,  Yu-Chee Tseng ,  Lun-Chia Kuo ,  Chao-Yu Chen

发明人： Chi-Chung Lo ,  Sheng-Po Kuo ,  Jui-Hao Chu ,  Yu-Chee Tseng ,  Lun-Chia Kuo ,  Chao-Yu Chen

IPC分类号： G01S3/02

CPC分类号： G01S5/0294 ,  G01C21/28 ,  G01S5/0278

摘要： A method for positioning a mobile device includes following steps. Based on a prior location point of the mobile device, many sample points are generated according to a prior probability distribution associated with the prior location point. A current moving track or a current moving status of the mobile device is obtained, and the sample points are updated according to at least one of the current moving track and the current moving status. A current estimated position is obtained based on a radio frequency signal received by the mobile device. A current probability distribution of the sample points corresponding to the radio frequency signal or the current estimated position is generated to obtain corresponding weights of the updated sample points. A current location point of the mobile device is obtained according to the weights and distribution of the sample points.

摘要翻译： 一种用于定位移动设备的方法包括以下步骤。 基于移动设备的先前位置点，根据与先前位置点相关联的先前概率分布来生成许多采样点。 获得移动设备的当前移动轨迹或当前移动状态，并且根据当前移动轨迹和当前移动状态中的至少一个来更新采样点。 基于由移动设备接收的射频信号获得当前估计位置。 产生与射频信号或当前估计位置对应的采样点的当前概率分布，以获得更新的采样点的相应权重。 根据采样点的权重和分布，获取移动设备的当前位置点。

公开(公告)号：US20110032152A1

公开(公告)日：2011-02-10

申请号：US12752693

申请日：2010-04-01

申请人： Chi-Chung Lo ,  Sheng-Po Kuo ,  Jui-Hao Chu ,  Yu-Chee Tseng ,  Lun-Chia Kuo ,  Chao-Yu Chen

发明人： Chi-Chung Lo ,  Sheng-Po Kuo ,  Jui-Hao Chu ,  Yu-Chee Tseng ,  Lun-Chia Kuo ,  Chao-Yu Chen

IPC分类号： G01S3/02

CPC分类号： G01S5/0294 ,  G01C21/28 ,  G01S5/0278

摘要： A method for positioning a mobile device includes following steps. Based on a prior location point of the mobile device, many sample particles are generated according to a prior probability distribution associated with the prior location point. A current moving track or a current behavior mode of the mobile device is obtained, and the sample particles are moved according to at least one of the current moving track and the current behavior mode. A current supposed status is obtained based on a radio frequency signal received by the mobile device. A current probability distribution of the sample particles corresponding to the radio frequency signal or the current supposed status is generated to obtain corresponding weights of the moved sample particles. A current location point of the mobile device is obtained according to the weights and distribution of the sample particles.

摘要翻译： 一种用于定位移动设备的方法包括以下步骤。 基于移动设备的先前位置点，根据与先前位置点相关联的先前概率分布来生成许多样本粒子。 获得移动设备的当前移动轨迹或当前行为模式，并且根据当前移动轨迹和当前行为模式中的至少一个来移动样本粒子。 基于由移动设备接收的射频信号获得当前假定状态。 生成对应于射频信号或当前假设状态的样本粒子的当前概率分布，以获得移动的样本粒子的相应权重。 根据样品颗粒的重量和分布，获得移动设备的当前位置点。