Applying the rough set theory make the controlling quantity roughened, and realizes a variable precision control.
利用粗糙集合理论对控制量作了粗糙化，实现了控制系统的变精度控制。
A kind of control system of variable rate fertilizer applicator in precision agriculture is introduced.
介绍了一种的实现精准农业变量施肥作业的施肥控制系统。
It sets the voltage feedback parameter directly according to the regulation precision for steady state while realizes the multi-variable coordinated optimization control.
既根据稳态调节精度的要求设定电压反馈系数，又实现了多变量协调优化控制。
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