Fuzzy Control Implement of Micro-flow Control System

Abstract

In the real-time mixing pesticide of the Variable Rate Spay (VRS), In order to detect and control micro-flow of pesticide, a micro-flow control system and fuzzy control arithmetic were designed with Differential Pressure (DP) flow meter, Electrical Control Injector (ECI)and microprocessor. Using water as work fluid, at 20℃, the control system was tested. The testing results show that static errors is ±5% at the range of 0 ~ 0.9 mL/s, the response time is 0.25s, the steady errors is ±2% at dynamic response test when initial value is 0.1mL/s and final value is 0.5 mL/s.

Agriculture robotic vehicle based pesticide sprayer with efficiency optimization

“…In order to achieve precision in spraying and to improve the efficiency various new technologies have been proposed. Pre mixing of pesticides to a constant thickness will not be efficient as the pesticide requirement varies with each crop so this will lead to wastage of pesticides and the results will not be optimum [15]. When Microprocessor, Differential pressure flow meter, Electrical control injector is used in a system the test results were as follows static and steady state errors were reduced significantly.…”