本文選題：精準(zhǔn)施肥 + 數(shù)字PI算法　； 參考：《農(nóng)機化研究》2017年10期

【摘要】：為了使施肥速度與機器行進(jìn)速度同步,提出了一種基于數(shù)字PI算法的閉環(huán)施肥系統(tǒng),主要由傳感器、PLC、脈寬調(diào)制電機驅(qū)動器(PWM驅(qū)動器)、GPRS模塊及直流無刷電機組成。通過檢測拖拉機的速度信號及外槽輪轉(zhuǎn)速,PLC根據(jù)所輸入決策經(jīng)PWM驅(qū)動器對外槽輪下料速度進(jìn)行閉環(huán)控制,從而實現(xiàn)精準(zhǔn)施肥。仿真實驗結(jié)果表明:基于數(shù)字PI算法的閉環(huán)控制系統(tǒng)提高了施肥精度和響應(yīng)速度,機具操作簡單,在田間工作性能穩(wěn)定。
[Abstract]:In order to synchronize the speed of fertilization with the speed of the machine, a closed loop fertilization system based on digital Pi algorithm is proposed. The system consists of a sensor PLC, a PWM driver with PWM driver and a GPRS module and a DC brushless motor. By detecting the speed signal of the tractor and the speed of the outer groove wheel PLC according to the input decision the closed loop control of the cutting speed of the external slot wheel of the PWM driver is carried out so as to realize accurate fertilization. The simulation results show that the closed loop control system based on the digital Pi algorithm improves the precision and response speed of fertilization, and the operation of the machine is simple, and the performance of the machine is stable in the field.
【作者單位】： 貴州大學(xué)機械工程學(xué)院;貴州省煙草公司畢節(jié)市公司;貴州省煙草公司黔西南州公司;
【基金】：貴州省科技重大專項(黔科合重大專項字[2014]6015-6號) 貴州省煙草公司畢節(jié)市公司科技項目(貴煙畢科[2015]3號);貴州省煙草公司黔西南州公司科技項目(貴州煙司[2015]41號)
【分類號】：S147;S126
，

本文編號：2026411