Background:
Agriculture sector is one of the prime and widely spread sectors. So to make it autonomous and increase yield,
we require a major technological improvement. The only solution to make advancement is with the use of wireless sensor networks.
Internet of Things in this field is used to provide connectivity to all real-time sensors and to collect that data in computer-based systems
without human involvement.
Objective:
IoT based system is used to monitor physical and environmental conditions of agriculture field through a network of wireless
sensor. Here, a novel ultra-wideband Dielectric Resonator antenna is designed that is used in Wi-Fi for transmission of data received from
sensors. The antenna designed should be easy to fabricate and compact in size and should provide high data rates. The complete designed
system should be reliable and cost effective one.
Method:
A proposed IoT based system monitors physical and environmental conditions using wireless sensor network consisting of
power supply, soil moisture sensor (FC-28), humidity sensor (LM-35), temperature sensor (HR-202), water level sensor, ARM 7
processor, liquid crystal display (LCD), Relay, motor and Wi-Fi module that is installed at remote locations and connected to the main
system comprises of a novel ultra-wideband Dielectric Resonator antenna.
Results:
The designed WSN based IoT system for agriculture application monitors temperature, humidity, soil moisture, and water level
in the field. For Wi-Fi module implementation ultra-wideband inverted sigmoid shaped DRA is designed that provides an impedance
bandwidth of 36.46 % at 6.226 GHz (5.51 - 7.78 GHz). The designed antenna provides a peak gain of 5.44 dB at a resonant frequency of
6.226 GHz.
Conclusion:
The proposed IoT based system is used to monitors physical and environmental conditions like soil moisture, humidity,
temperature and water level and sends the data through Wi-Fi module comprising of an ultra-wideband Dielectric Resonator antenna. The
designed antenna is compact and can be easily fabricated using printed circuit board technology. The complete system is cost-effective
and can be easily implemented.
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