System and method for controlling continuous hole seeding of air-suction drum-type seed-metering device
US12134524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2022 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Mar 7, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system includes a hollow shaft, a drum, an absolute encoder, a driving mechanism, a conveyor belt, a photoelectric sensor, and a controller. A structural optimization design method of the drum is provided on the basis of theoretical calculation of a seeding track of the drum-type seed-metering device, a theoretical model of a conveying position of a tray and a seed-metering angle is built with the aim of continuously sowing grains to the center of each hole, the conveying position of the tray and a rotating position of suction holes on the drum are monitored in real time on a seedling raising line, and a difference value between the actual position of the suction holes and the theoretical seed-metering angle and a change rate of the difference value are calculated and serve as input parameters to design a fuzzy controller of the rotation speed of the drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.