| 发明名称 |
System and Method for Locating Wireless Nodes |
| 摘要 |
A tracking system includes a network; a plurality of signal sources communicatively coupled to the network, the plurality of signal sources configured to transmit substantially identical signals; and an RFID tag configured to receive the substantially identical signals from the plurality of signal sources, determine points of intersection from hyperbola curves defining phase differences between the substantially identical signals, a point of intersection of three hyperbola curves defining a location of the user device. In some embodiments, the plurality of signal sources comprise a single transmitter and a predetermined plurality of substantially identical antennas coupled to the single transmitter by cables of a substantially same length. |
| 申请公布号 |
US2014266609(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201313831596 |
申请日期 |
2013.03.15 |
| 申请人 |
MICROCHIP TECHNOLOGY INCORPORATED |
发明人 |
Yang Yifeng |
| 分类号 |
G06K7/10 |
主分类号 |
G06K7/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A tracking system, comprising:
a network; a plurality of signal sources communicatively coupled to the network, the plurality of signal sources configured to transmit substantially identical signals; and an RFID tag configured to receive the substantially identical signals from the plurality of signal sources, determine points of intersection from hyperbola curves defining phase differences between the substantially identical signals, a point of intersection of three hyperbola curves defining a location of the user device. |
| 地址 |
Chandler AZ US |
