Methods and systems for controlling electromagnetic field generators
US10950378B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Sep 10, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B34/70
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are methods and apparatus for controlling electromagnetic field generation system to generate dynamic magnetic fields. The method can comprise: establishing a dynamic model that describes open-loop dynamics of the electromagnetic field generation system and has an unified state-space form with time delay; configuring a controller based on the dynamic model; applying, by the controller, a control signal to the electromagnetic field generation system; detecting one or more feedback signals from the electromagnetic field generation system; and updating, by the controller, the control signal for controlling the electromagnetic field generation system, according to a reference signal corresponding to a desired dynamic magnetic field, one or more compensated feedback signals, and system states. To address time delay and modeling error and to estimate system states, a Kalman filter and a Smith predictor based compensator can be incorporated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.