Open Access

Smart greenhouses using internet of things: case study on tomatoes

S. J. Juneidi

S. J. Juneidi

Palestine Technical University Kadoorie HebronPalestine
Search for this author on
Sciendo|Google Scholar
Juneidi, S. J.
  
Jan 03, 2023
Smart greenhouses using internet of things: case study on tomatoes's Cover Image
About this article
Previous Article
Next Article
Cite
Download Cover
Published Online: Jan 03, 2023
Received: Aug 22, 2022
DOI: https://doi.org/10.2478/ijssis-2022-0019
Keywords
© 2022 S. J. Juneidi, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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 Code Function Code Effective Number of bytes Nitrogen Value CRC_L CRC_H
0x01 0x03 0x02 0x00 0x20 0Xb9 0x9C

Recommended temperature of tomato greenhouse based on light levels

Minimum Temperature Low Light (Cloudy Days) High Light (Sunny Days)
Night 63°F (17°C) 64°F (18°C)
Day 66°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
Publication timeframe:
1 times per year
Journal Subjects:
Engineering, Introductions and Overviews, Engineering, other
Journal RSS Feed