GPS-alternative method to perform asynchronous positioning of networked nodes
US10948566B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jan 26, 2016 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A new asynchronous localization method for a network of nodes and transmitters, the position of at least one of the nodes and/or transmitters being known, involves receiving a first signal directly from a first transmitter at a first node of a first node pair, receiving the first signal relayed from a second node of the first node pair at the first node, and determining the delay at the first node between the direct and relayed first signal by comparing the direct and relayed first signals. This may be repeated with the first node acting as relay to determine the delay at the second node. Time difference of arrival and/or time of flight between first and second nodes may be determined using the determined delay at the first and/or second node and/or known node locations. The process is repeated for additional transmitters/node pairs until sufficient information is determined for desired applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.