Fuzzy Logic Controlled Motor Speed in Rotating Aquaponics Based on Lactuca sativa Leaf Chlorosis and Necrosis and Environment Temperature

Heinrick L. Aquino, Ronnie S. Concepcion, Argel A. Bandala, Christan Hail Mendigoria, Oliver John Alajas, Elmer P. Dadios, Joel Cuello

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Necrosis and chlorosis are some of the leaf conditions that contribute to losses in crop production, which is the browning and yellowing of leaves caused by improper irrigation and fertigation. A rotating aquaponics, crop cultivation conceptualized initially by NASA to save space and grow their food on space stations is the inspiration of application of this study. A fuzzy logic controlled (FLC) DC motor speed controller was developed using the Mamdani system to automate the rotating mechanism that is responsible for watering turns of lettuce crops. Using CIE L∗, a∗, color space, and environment temperature as input linguistic values, the motor speed will adjust depending on the status of the physical pigment condition of leaves as well as the intensity of temperature. The generated fuzzy logic controller has four triangular membership functions with 16 rules on each of the inputs. This resulted in four possible outputs of rotating aquaponics motor speed measured in rpm: very slow (0.25), slow (0.5), slightly fast (1.25), and fast (2). The modeled FLC was simulated in a Simulink environment in MATLABR2021 software and had a 10-step size and manifested essentially accurate results with 100% correct outputs based on input characteristics and rules developed. This developed FLC model is a substantial contribution to mitigating losses on lettuce crops grown under rotating aquaponics by automating the water absorption frequency depending on the status of the crop and the temperature of its environment.

Original languageEnglish (US)
Title of host publication2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management, HNICEM 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665401678
DOIs
StatePublished - 2021
Externally publishedYes
Event2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management, HNICEM 2021 - Manila, Philippines
Duration: Nov 28 2021Nov 30 2021

Publication series

Name2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management, HNICEM 2021

Conference

Conference2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management, HNICEM 2021
Country/TerritoryPhilippines
CityManila
Period11/28/2111/30/21

Keywords

  • chlorosis and necrosis
  • controlled environment engineering
  • fuzzy logic
  • motor
  • rotating aquaponics

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Hardware and Architecture
  • Human-Computer Interaction
  • Information Systems
  • Information Systems and Management
  • Environmental Science (miscellaneous)
  • Control and Optimization

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