# Design of 4UM-120D Electric Leafy Vegetable Harvester Cutter Height off the Ground Automatic Control System Based on Incremental PID

> Research article (Agriculture, 2023) · cited 11× · AI/ML

**Wikidata**: [openalex:W4366687326](https://www.wikidata.org/wiki/openalex:W4366687326)  
**Source**: https://4ort.xyz/entity/design-of-4um-120d-electric-leafy-vegetable-harvester-cutter-height-off-the-ground-automatic-control-system-based-on-inc