Induction trash can circuit standby power-saving method
US10928796B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2017 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 1, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65F2210/168
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An induction trash can circuit includes an active infrared sensor, a microcontroller, a driving circuit and a motor for controlling the opening and closing of a lid. The power-saving method is achieved through the following steps: in a standby state, the microcontroller controls the active infrared sensor to emit an infrared pulse signal to an induction area; if no obstacle exit in the induction area, the active infrared sensor outputs no signals, the program of the microcontroller immediately enters a sleep state; after the program of the microcontroller sleeps for a period of time, a watchdog timer in the microcontroller wakes up the microcomputer controller to make the microcontroller re-enter a working state; and if the microcontroller is in a standby state, the above process is repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.