公开(公告)号：US20150308861A1

公开(公告)日：2015-10-29

申请号：US14697042

申请日：2015-04-27

Applicant: Purdue Research Foundation

Inventor： Byunghoo Jung ,  Mohit Singh

IPC: G01D5/20

CPC classification number: G01R33/0206 ,  G01C21/20 ,  G01C21/206 ,  G01D5/2073

Abstract: A positioning system for determining the location of a receiver relative to a transmitter. The system includes two transmitting coils configured to transmit a periodic signal with a respective selected frequency during a positioning event, wherein the frequencies of the two signals transmitted by the two transmitting coils during the positioning event are different. A receiver includes a sensing unit for measuring the magnetic field vectors produced by the two simultaneously transmitting coils. A computing unit is configured to use the measured magnetic field vectors to calculate the position and orientation of the receiver with respect to the transmitter's coordinate frame.

Abstract translation: 一种用于确定接收机相对于发射机的位置的定位系统。 该系统包括两个发射线圈，其被配置为在定位事件期间以相应的选定频率传输周期性信号，其中由定位事件期间的两个发射线圈发射的两个信号的频率是不同的。 接收机包括用于测量由两个同时发送的线圈产生的磁场矢量的感测单元。 计算单元被配置为使用所测量的磁场矢量来相对于发射机的坐标系来计算接收机的位置和方位。

公开(公告)号：US20190004122A1

公开(公告)日：2019-01-03

申请号：US16103911

申请日：2018-08-14

Applicant: Purdue Research Foundation ,  AccuPS Inc.

Inventor： Byunghoo Jung ,  Mohit Singh

IPC: G01R33/02

Abstract: An apparatus and method of wireless position sensing determining the location of a receiver relative to a transmitter in a three dimensional space and correlating that location to and interacting with a display device. The system includes a transmitting coil having a known orientation with respect to the earth's coordinate system and configured to transmit a periodic signal during a positioning event, at least one receiver including a sensing unit for measuring the magnetic field vector produced by the transmitting coil and the orientation of the receiver with respect to the earth's coordinate system, and at least one computing unit configured to estimate a position and orientation of the receiver with respect to the transmitter's coordinate system using the measured magnetic field vector, the measured orientation with respect to the earth's coordinate system, and the known orientation of the transmitting coil with respect to the earth's coordinate system.

公开(公告)号：US10101408B2

公开(公告)日：2018-10-16

申请号：US14697008

申请日：2015-04-27

Applicant: Purdue Research Foundation

Inventor： Byunghoo Jung ,  Mohit Singh

IPC: G01R33/02 ,  G01D5/20 ,  G01C21/20

Abstract: A positioning system for determining the location of a receiver relative to a transmitter. The system includes a transmitting coil having a known orientation with respect to the earth's coordinate system and configured to transmit a periodic signal during a positioning event, at least one receiver including a sensing unit for measuring the magnetic field vector produced by the transmitting coil and the orientation of the receiver with respect to the earth's coordinate system, and at least one computing unit configured to estimate a position and orientation of the receiver with respect to the transmitter's coordinate system using the measured magnetic field vector, the measured orientation with respect to the earth's coordinate system, and the known orientation of the transmitting coil with respect to the earth's coordinate system.

公开(公告)号：US20150309126A1

公开(公告)日：2015-10-29

申请号：US14697008

申请日：2015-04-27

Applicant: Purdue Research Foundation

Inventor： Byunghoo Jung ,  Mohit Singh

IPC: G01R33/02

CPC classification number: G01R33/0206 ,  G01C21/20 ,  G01C21/206 ,  G01D5/2073

Abstract: A positioning system for determining the location of a receiver relative to a transmitter. The system includes a transmitting coil having a known orientation with respect to the earth's coordinate system and configured to transmit a periodic signal during a positioning event, at least one receiver including a sensing unit for measuring the magnetic field vector produced by the transmitting coil and the orientation of the receiver with respect to the earth's coordinate system, and at least one computing unit configured to estimate a position and orientation of the receiver with respect to the transmitter's coordinate system using the measured magnetic field vector, the measured orientation with respect to the earth's coordinate system, and the known orientation of the transmitting coil with respect to the earth's coordinate system.

Abstract translation: 一种用于确定接收机相对于发射机的位置的定位系统。 该系统包括相对于地球坐标系具有已知定向的发射线圈，并且被配置为在定位事件期间发射周期性信号，至少一个接收机包括用于测量由发射线圈产生的磁场矢量的感测单元和 接收器相对于地球坐标系的取向;以及至少一个计算单元，被配置为使用测量的磁场矢量来估计接收机相对于发射机坐标系的位置和姿态，所测量的方向相对于地球的坐标系 坐标系，以及发射线圈相对于地球坐标系的已知定向。