Abstract:
LoRa, Sigfox, and Narrowband-Internet of Things (NB-IoT) are
some of the long-distance, low-power wireless communication
technologies developed in the recent past. The proposed system
consists of mainly nodes and a gateway as the fundamental
system architecture. Nodes only communicate with the gateway
individually and the gateway communicates with all the nodes
separately and wirelessly. System in this proposed study, uses
long range low power RF wireless communication technique for
primary data communication, where an Internet connection will
not be required for the communication between the gateway and
the nodes. Any number of nodes can be paired with the gateway,
and the gateway can individually communicate with each and
every node. Furthermore, gateways have the ability of storing
real-time data. Due to its unique design, the proposed system in
this study, can achieve addressable, bidirectional, and
continuous data communication even without the Internet
connection. The bidirectional communication design of this
proposed system facilitates real time and uninterrupted
simultaneous handling of monitoring/sensor devices and
controller devices without the need of a separate controlling
system. As this system consists of those unique features, it is
recommended to use in the rural areas underserved by current
internet and telecommunication technologies. Furthermore, with
the in-built option to get connected to the Internet, this system
can be further expanded to an IoT based addressable data
communication, processing, and visualization systems by
eliminating the major technical problems in typical IoT systems
such as interrupted communication and data losses during an
Internet connection failure, power concerns and customization
issues. This system is highly customizable, and the nodes and the
connected devices can be controlled through the gateway or
remote dashboard by assigning automated or user defined
custom commands. These features together improve the
robustness of the system and facilitates enhanced data recovery
in case of a failure in the Internet connectivity.