Automatic variable rape seeding control system

Abstract

The invention provides an automatic variable rape seeding control system, in particular an agriculture operating system capable of accurately controlling variables in a process of seeding rape. Required seeding rate is directly input according to the field requirement, comprehensive operation is carried out according to the input seeding rate and the advancing speed of a machine tool, and finally, a pulse of controlling the seeding rate is output to control the rotating speed of a step motor, meanwhile, a seeding rate detection device is arranged at a seed discharging hole for detecting the seeding rate and feeding the seeding rate back to a main control chip, and the whole system forms a closed-loop feedback system, therefore, the requirement for accurate and variable seeding is met, and the automatic variable rape seeding control system can be realized through manual keyboard input only, is convenient and simple in operation, and has a remarkable effect.

Description

technical field [0001] The invention mainly relates to research on a control system for variable seeding of rapeseed, and belongs to the field of agricultural power technology. Background technique [0002] The traditional seeder uses the ground wheel to drive the seed meter. The ground wheel has high resistance and is easy to slip. After the rice is harvested and plowed, at least 30% of the soil surface is covered with stubble. Straw and weeds weaken the adhesion of the ground wheel. The slippage is more serious, and the uniformity of sowing cannot be guaranteed; it is also difficult to adjust the sowing rate of precision seeders in production. The traditional method is to manually replace the different sprockets after obtaining the seeding shaft speed corresponding to the required sowing rate through manual calculation. , is more complicated, time-consuming and labor-intensive, and this adjustment is graded, it is difficult to meet the requirements of precision sowing; the...

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Problems solved by technology

[0002] The traditional seeder uses the ground wheel to drive the seed meter. The ground wheel has high resistance and is easy to slip. After the rice is harvested and plowed, at least 30% of the soil surface is covered with stubble. Straw and weeds weaken the adhesion of the ground wheel. The slippage is more serious, and the uniformity of sowing cannot be guaranteed; it is also difficult to adjust the sowing rate of precision seeders in production. The traditional method is to manually replace the different sprockets after obtaining the seeding shaft speed corresponding to the required sowing rate through manual calculation. , is more complicated, time-consuming and labor-intensive, and this adjustment is graded, it is difficult to meet the requirements of precision sowing; the traditional method of sowing rapeseed is to use a fixed seeding rate, but due to the difference in soil fertility in different plots, each plot The difference in the surrounding environment of the land (light, humidity, ventilation, etc.), the difference in the sowing season, and the different crop varieties cause the different amount of sowing required for each field, and the use of traditional sowing methods at this time will easily cause seed damage. waste and affect yield

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