Continuous calibration of a control device
US10204466B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2018 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Feb 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/62
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device has a distance sensor and a transmitter. The distance sensor, attached to a barrier, measures an opening formed by the barrier. The transmitter transmits a control signal to a barrier controller. The barrier controller controls a movement of the barrier based on the control signal. The device receives a requested size of the opening. The device transmits, to the barrier controller, a first control signal that instructs the barrier controller to move the barrier and a second control signal that instructs the barrier controller to stop the movement of the barrier after an elapsed time has expired. The device measures a final size of the opening and adjusts the elapsed time based on the final size of the opening and the requested size of the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.