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Smart greenhouses using internet of things: case study on tomatoes Cover

Smart greenhouses using internet of things: case study on tomatoes

By: S. J. Juneidi  
Open Access
|Jan 2023

Figures & Tables

Figure 1

Smart Greenhouse with ventilation and automated cooling and heating system.
Smart Greenhouse with ventilation and automated cooling and heating system.

Figure 2

Relation between temperature and humidity. RH Max, Maximum Relative Humidity; RH Min, Minimum Relative Humidity; Temperature, Absolute temperature degree; RTH, Normal Relative Temperature to Humidity level; TH Max, The Maximum Value of Threshold to Action.
Relation between temperature and humidity. RH Max, Maximum Relative Humidity; RH Min, Minimum Relative Humidity; Temperature, Absolute temperature degree; RTH, Normal Relative Temperature to Humidity level; TH Max, The Maximum Value of Threshold to Action.

Figure 3

Growing stages of tomato plant last about 100 days.
Growing stages of tomato plant last about 100 days.

Figure 4

Testing container dimensions.
Testing container dimensions.

Figure 5

Geographic location where experiment is conducted, Palestine, Hebron district.
Geographic location where experiment is conducted, Palestine, Hebron district.

Figure 6

Annual climate condition of testing area.
Annual climate condition of testing area.

Figure 7

Nitrogen Phosphorus Potassium sensor actual size.
Nitrogen Phosphorus Potassium sensor actual size.

Figure 8

IoT system to check and calibrate substants NPK in soil.
IoT system to check and calibrate substants NPK in soil.

Figure 9

A) Concentrations of NPK and
A) Concentrations of NPK and

Address CodeFunction CodeEffective Number of bytesNitrogen ValueCRC_LCRC_H
0x010x030x020x00 0x200Xb90x9C

Recommended temperature of tomato greenhouse based on light levels

Minimum TemperatureLow Light (Cloudy Days)High Light (Sunny Days)
Night63°F (17°C)64°F (18°C)
Day66°F (19°C)70°F (21°C)

Relative humidity ranges related to temperature in greenhouses

Temperature °F (°C)Relative humidity range
60 (16)60%–75%
65 (18)65%–80%
70 (21)70%–80%
75 (24)75%–85%
80 (27)80%–85%
85 (29)85%–90%
Language: English
Submitted on: Aug 22, 2022
Published on: Jan 3, 2023
Published by: Professor Subhas Chandra Mukhopadhyay
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2023 S. J. Juneidi, published by Professor Subhas Chandra Mukhopadhyay
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.