Universal variable operation controller and control method thereof

Abstract

The invention discloses a universal variable operation controller for variable operation such as farmland seeding, fertilizing and pesticide spraying and a control method of the universal variable operation controller. The universal variable operation controller is matched with a corresponding sensor and a corresponding executing mechanism and can be used for controlling the variable operation of air suction seeding, outer groove-wheel type fertilizing and spray boom type pesticide spraying and simultaneously controlling the running speed of a wheel type agricultural machine, and a stable running speed is provided for the variable operation. The universal variable operation controller is formed by an ARM (Advanced RISC Machines)-9 core unit, a power supply module, a pushing rod driving module, an electromagnetic valve control module, a motor control module, a voltage output module, a pulse signal conditioning module, a current measuring module and a voltage measuring module. The control method comprises the steps of inquiring a prescription map to obtain prescription information of a farmland in a position according to the position where an agricultural implement is located, and calculating to obtain a target application amount. By adopting an appropriate algorithm, the variable operation control is realized, meanwhile, the agricultural machine is controlled to run at a stable setting speed through an accelerator pedal, and the accuracy of variable operation is increased.

Description

technical field [0001] The invention relates to the field of agricultural machinery automation and intelligence, in particular to a universal variable operation controller and a control method for variable operations such as sowing, fertilizing, and spraying in farmland. Background technique [0002] Field variable operation technology is the field realization method of precision agriculture, and it is also a key step to reflect the ideas and effects of precision agriculture. Based on the differences in the growth environment of crops in various regions of the farmland, the field variable operation technology is scientifically managed, adapted to local conditions, and variable input is required, which changes the traditional average input field management method, reduces the field input of fertilizers, pesticides, etc., and saves Resources, maximize the utilization of soil, pesticides and fertilizers, improve the quality and safety of agricultural products, increase the econ...

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