Development real time monitoring of precision agro farming
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Date
2019-06
Authors
Nabilah Binti Mohd Fadilah
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Abstract
Agriculture is one of important sector that use wireless sensor network (WSN)
and Internet of Things (IoT) concept to improve the crops production, intruder prevention,
monitoring and crops profitability. WSN is able monitor the progress of the crops and
provide real time data to the farmers without going to scene. Improper water management
is major problem that faced by this industry due lack of advanced management and
maintenance. Thus, it also can lead to depletion of water resources for human and
organisms. The purpose of this experiment is to set up and use of the plan real time
monitoring using Internet of Things and to study the plant growth affecting by the
variables of growth. Plants that have been studied are onion bulbs. Many sensors have
been used in this experiment such as temperature and humidity sensor, light sensor and
soil moisture sensor to measure the temperature and humidity of the surrounding air, the
light resistance and the water content in the soil. These sensors are connected to raspberry
pi that acts as gateway for data collection. When soil moisture level is below than 20 %,
the pump will automatically start to pump the water for the plant. It will stop when the
soil moisture level reaches up to 40 %. Condition of temperature and humidity of air can
affect the growth of the plant. If the humidity is too low, more water in the soil will
evaporate to the environment. The ideal range of humidity level for vegetable growth is
between 50 % to 70 %. Sufficient of light and water need to be provided for the plant to
increase its height. Image processing was used in this system in order to distinguish the
plant growth in each day. By having reliable system that use IoT concept, it can provide
the best condition for healthy plants. Growth rate for plants with automatic monitoring is
higher than plant without automatic monitoring. These plants received sufficient amount of light and water every day to stimulate their growth efficiently. Hence, the daily increment of height of plants also increased. While plant without automatic monitoring got limited of sunlight because it only got light in day light. This will result to low growth rate for this plant. Thus, its watering schedule is not relied to soil moisture level.