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针对精准农业关键技术之一——精确施肥,设计了一种由步进电机驱动控制的自动变量施肥器。它以可编程运动控制卡为核心,驱动步进电机,步进电机与排肥机构相联,根据施肥量信息,计算机程序控制步进电机转速变化,从而控制排肥机构肥料排出量,达到自动变量施肥的目的。本文着重介绍了自动变量施肥实现的总体方案和步进电机的接线设计。
For precision fertilization, one of the key technologies of precision agriculture, an automatic variable fertilizer applicator driven by stepper motor was designed. It is programmable motion control card as the core, the drive stepper motor, stepper motor and fertilizer agencies associated, according to the amount of fertilizer information, the computer program to control the stepper motor speed changes, thereby controlling the fertilizer discharge fertilizer institutions, to achieve automatic The purpose of variable fertilization. This article focuses on the realization of the overall program of automatic variable fertilization and stepper motor wiring design.