枸杞智能喷药机的控制系统设计与试验

Design and experiment of control system of Lycium chinense intelligent spraying machine

风送式喷药机不能根据枸杞(Lycium chinense Miller)植株自适应喷药,从而造成农药残留和施药不足,针对这一问题,设计了一种枸杞喷药智能控制系统。该系统通过布置在喷药机两边的两组(共10个)超声波传感器,测得植株的大小和疏密情况,与速度传感器测得的拖拉机行驶速度校正。由控制器计算植株模型并分别调节各阀门,以实现根据单个植株对靶实时调节喷药量。试验结果表明,该智能控制系统能够减少农药使用量,并有效降低农药残留。

The pneumatic sprayer could not spray according to the Lycium chinense plant adaptively,resulting in pesticide residues and insufficient application.Aiming at this problem,an intelligent control system for Lycium chinense spraying was designed.The system measured the size and density of plants through two groups(10 in total)of ultrasonic sensors arranged on both sides of the sprayer,and corrected the traveling speed of the tractor measured by the speed sensor.The controller calculateed the plant model and adjusted each valve separately,so as to achieve real-time adjustment of the spraying amount according to the target of a single plant.The experimental results showed that the intelligent control system could reduce the use of pesticides and effectively reduce pesticide residues.