Comprehensive sensor fusion algorithm
US9864729B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Feb 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a signal processor, and more particularly, to systems, devices and methods of using a comprehensive sensor fusion algorithm to integrate sensor data collected by accelerometers, gyroscopes and magnetometers. The signal processor dynamically applies a Complementary Filter to merge a rotation based gyro output and a FQA output that is obtained by combining acceleration rates and magnetic field magnitudes. Therefore, motion information is derived to generate a motion control signal. Such a comprehensive sensor fusion algorithm significantly reduces the complexity of computation, and the power and area overhead is controlled. As a result, the signal processor may be implemented based on local computation capability of a sensor system, and its integration within such a sensor system is made possible without relying on an external microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.