Implementation of a Fuzzy Logic Controller for the Irrigation of Rose Cultivation in Mexico
Abstract
:1. Introduction
1.1. Conditions for Growing Roses
- In production, the environmental temperature (T) is approximately 17–25 °C, with a minimum vegetative temperature close to 15 °C and a maximum of 32 °C.
- During the growth period, T should be above 20–24 °C, with relative humidity (RH) around 98–100%.
- RH ranges between 70–75% demand a higher light intensity since higher intensity results in higher yields. In summer months, when brighter and longer days prevail, flower production is greater when compared to winter crop output.
- During winter, it is recommended to raise (T), irradiate with artificial lighting (implementation of lamps), and install thermal blankets to preserve heat at night.
1.2. Evapotranspiration
2. Materials and Methods
2.1. FLC Modeling
(d − EHR)/(d − c), c ≤ EHR ≤ d; 0, d ≤ HER}
2.2. FLC Implementation
2.3. Module I: temp_fuz
2.4. Module II: fuz_dhl
2.5. Module III: min15
2.6. Module IV: max_def
3. Results
FLC Implementation into an FPGA
- Sprinkling;
- Drip;
- Micro spray;
- Underground drainage.
- It is adaptable for any given plant, adjusting the parameters to the specific conditions required.
- It is immune to noise variations since it is implemented in a single integrated circuit.
- It uses a system of two sensors to measure the temperature and relative humidity of the air, thereby saving resources by going from more complex irrigation systems to a simple one.
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
References
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Temperature (T) | |||||||||||
°C | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | |||
Decimal | 0 | 36 | 73 | 109 | 146 | 182 | 219 | 255 | |||
Relative Humidity (%) | |||||||||||
% | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |
Decimal | 0 | 25 | 50 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 255 |
Valve Opening (%) | |||||||||||
Valve Opening | (0) | (50) | (100) | ||||||||
Time (h) | 0 | 4.7 | 9.4 |
Error of Temperature (°C) | ||
Variable | Linguistic Representation | Decimal Associated Values |
A(ErT) | Cold | {a1 = 0, a2 = 0, a3 = 48, a4 = 54} |
B(ErT) | Cool | {b1 = 48, b2 = 80, b3 = 128} |
C(ErT) | Normal | {c1 = 96, c2 = 102, c3 = 172} |
D(ErT) | Warm | {d1 = 143, d2 = 180, d3 = 218} |
E(ErT) | Hot | {e1 = 191, e2 = 239, e3 = 255, e4 = 255} |
Relative Humidity Error (%) | ||
Variable | Linguistic Representation | Decimal Associated Values |
X(ERH) | Dry | {x1 = 0, x2 = 0, x3 = 68, x4 = 102} |
Y(ERH) | Moist | {y1 = 85, y2 = 120, y3 = 153, y4 = 204} |
Z(ERH) | Wet | {z1 = 170, z2 = 222, z3 = 255, z4 = 255} |
Irrigation Time (s) | ||
Variable | Linguistic Representation | Decimal Associated Values |
O(TIr) | Short | {o1 = 0} |
P(TIr) | Medium | {p1 = 50} |
Q(TIr) | Long | {q1 = 100} |
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Urbieta Parrazales, R.; Zagaceta Álvarez, M.T.; Aguilar Cruz, K.A.; Palma Orozco, R.; Fernández Muñoz, J.L. Implementation of a Fuzzy Logic Controller for the Irrigation of Rose Cultivation in Mexico. Agriculture 2021, 11, 576. https://doi.org/10.3390/agriculture11070576
Urbieta Parrazales R, Zagaceta Álvarez MT, Aguilar Cruz KA, Palma Orozco R, Fernández Muñoz JL. Implementation of a Fuzzy Logic Controller for the Irrigation of Rose Cultivation in Mexico. Agriculture. 2021; 11(7):576. https://doi.org/10.3390/agriculture11070576
Chicago/Turabian StyleUrbieta Parrazales, Romeo, María T. Zagaceta Álvarez, Karen A. Aguilar Cruz, Rosaura Palma Orozco, and José L. Fernández Muñoz. 2021. "Implementation of a Fuzzy Logic Controller for the Irrigation of Rose Cultivation in Mexico" Agriculture 11, no. 7: 576. https://doi.org/10.3390/agriculture11070576