A self-adaptive seeding control method for a multi-crop seed drill

Abstract

The invention relates to a self-adaptive seeding rate control method for a multi-crop drill, which belongs to the technical field of agricultural machinery. The tractor of the planter is equipped with a speed sensor, its seed meter is equipped with a load cell, and an intelligent controller including a CPU is installed. The CPU realizes seeding control according to the following steps: read operation input parameters; drive seeding at a predetermined speed Rotate the seeding device; collect the change value of the load cell, calculate the calibrated seeding amount; obtain the relationship between the seeding amount per mu (kg / mu) and the average rotation speed of the ground wheel (rev / min); calculate the actual measurement of the ground wheel for a predetermined period of time Average rotational speed; get the calculated sowing amount per mu, and compare whether it is less than the rated sowing amount per mu, and then revise it; until the sowing per unit area is completed; use the corrected sowing amount per mu to replace the calculated sowing amount per mu; further revise until the unit is completed area to sow. After adopting the present invention, it can adapt to the precision sowing of multi-crop drill, improves the utilization rate of machines and tools, and is beneficial to the popularization of crop mechanical operations.

Description

A self-adaptive seeding control method for a multi-crop seed drill technical field The invention relates to a seeding control method, in particular to a self-adaptive seeding rate control method for a multi-crop drill, belonging to the technical field of agricultural machinery. Background technique Since the yield of mechanized precision seeding is significantly higher than that of traditional seeding, precision seeding technology has been popularized. According to the applicant's understanding, traditional sowing rate adjustment is usually performed by manual calculation of the sowing rate and then manual replacement of the sprocket (or seed trough). Practice has proved that this kind of mechanical seeding device is difficult to meet the needs of precision planting and real-time adjustment of the seeding speed, and the seeder uses the ground wheel to take power to drive the seed metering device (for its typical structure, see the application number 201310472023.8, the nam...

AI Technical Summary

Problems solved by technology

This kind of calibration test process is time-consuming and labor-intensive, and it is completely done manually. It also requires professional technicians to fit the relationship between variables according to the test data. It cannot be completed quickly by the control system itself. When the seeding wheel is replaced, the type of crop seeds or the soil condition changes. It cannot be completed in a short time, so it cannot meet the needs of rush sowing in the sowing season

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