Swing control method and apparatus
US11786828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2021 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Oct 19, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47D13/105
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A swing control method is disclosed. Dual photoelectric sensors and gratings are involved. The method includes: detecting the time when blocked or opening parts of gratings pass through photoelectric sensors; comparing a minimum time value with a time value corresponding to a preset swing amplitude in each swing cycle, and when the minimum time value is not equal to the preset time value, generating a control signal for adjusting an output power of a motor so that the swing amplitude reaches the preset swing amplitude; detecting a current swing direction; and determining whether the current swing direction changes, and if yes, generating a control signal for adjusting the output power of the motor for co-direction supplementary augmentation. The method controls the swing speed of a swing by calculating a value of the time when the blocked or opening parts of the gratings pass through the photoelectric sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.