Design and Implementation of a Human-Machine-Interface Based Hydroponic Nutrient Solution Irrigation System

2014 ASABE Annual International Meeting Pub Date : 2014-07-16 DOI:10.13031/AIM.20141894732

Chung-Liang Chang, Gong-Fong Hong

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引用次数: 3

Abstract

Abstract. This study aims to develop a human-machine-interface (HMI) based nutrient solution regulation system, which can be applied to hydroponic cultivation of plants. The proposed system includes a personal computer, microcontrollers, flow-meter modules, water quality monitor modules (pH, EC, and DO), ion electrode sensing modules (potassium, calcium, magnesium, etc.), peripheral circuit, power modules, pipe, nutrient solution storage tank, and liquid-regulating valve. The flow rates of five different nutrient solutions are controlled by a microcontroller which regulates the flow control valves. The user can select the desired plant name on the HMI or program the concentrations of nutrient solutions manually, which results in an automatic deployment of nutrient solution for a particular plant (by default, five different compositions of plant nutrient solutions are provided in the database). Meanwhile, the concentrations of nutrient solutions in the cultivation bed are displayed in real-time in the HMI. The experiment was conducted in a cultivation bed (120 cm x 60 cmx 11 cm (LxWxH)) equipped with a light emitting diode (LED) lighting board. The results demonstrate that a range of tolerable concentrations of nutrient solutions can be maintained by using the proposed system.

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基于人机界面的水培营养液灌溉系统的设计与实现

摘要本研究旨在开发一个基于人机界面(HMI)的营养液调节系统，该系统可应用于植物水培栽培。该系统包括个人计算机、微控制器、流量计模块、水质监测模块(pH、EC和DO)、离子电极传感模块(钾、钙、镁等)、外围电路、电源模块、管道、营养液储罐和液体调节阀。五种不同营养液的流速由一个调节流量控制阀的微控制器控制。用户可以在人机界面上选择所需的植物名称或手动编程营养液的浓度，从而自动部署特定植物的营养液(默认情况下，数据库中提供了五种不同成分的植物营养液)。同时，HMI实时显示栽培床内营养液浓度。实验在120 cm × 60 cm × 11 cm (LxWxH)的栽培床上进行，床上安装有发光二极管(LED)照明板。结果表明，使用该系统可以维持营养液的可耐受浓度范围。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 ASABE Annual International Meeting

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