ELECTRIC RED BEAN PRECISION SEEDING CONTROL SYSTEM BASED ON IHBA-LADRC

This study proposes an improved honey badger algorithm (IHBA) and a linear active disturbance rejection controller (LADRC) for the electric red bean precision seeder control system to solve high sowing missing rates and uneven sowing in high-density red bean precision sowing. The research details the design process of the intelligent control system, the improvement of the honey badger algorithm, and the intelligent adjustment method for key parameters of the LADRC controller. Simulation experiments show that the IHBA-LADRC based control system has no overshoot, short adjustment time, minimal steady-state error, no oscillation, and strong anti-interference ability. The system achieves an adjustment time of 0.79 seconds, almost zero static error, and an interference recovery time of 0.22 seconds. Bench tests indicate that compared to traditional PID electronic control sowing, the IHBA-LADRC system improves the pass index by 1.32 percentage points, reduces the multiple index by 0.49 percentage points, and lowers the missed sowing index by 0.76 percentage points. The overall variation coefficient decreases by 6.30 percentage points, and the variation coefficient of qualified plant spacing drops by 5.43 percentage points. This system reduces the discrepancy between the actual and theoretical plant spacing of red beans.