Experimental Modeling
of the Residual Energy of a Rechargeable Battery-Powered Node in Wireless Networks
Naseeruddin and Venkanagouda Patil
Department
of Electronics and Communication Engineering, Ballari Institute of Technology
and Management Visvesvaraya Technological University, India
Abstract: This paper
proposes an effective method for experimental modeling of the remaining energy in terms of State Of
the Charge (SOC) of a battery-powered node in a wireless network. The SOC of a
battery is used to accurately determine the remaining energy of the battery.
For experimentation, three practical applications (i.e., loads) were allowed to
run on the Ni-MH rechargeable battery. The real-time variations in the battery
terminal voltage are captured using IC INA219 fuel gauge and an empirical
equation is derived from this captured data for each application. These
empirical equations are used on a node as a programmable model to experimentally
verify the SOC of the application discharge curves. The developed model
randomly runs the application for a random duration of time and then computes
the SOC of the node. The effectiveness of the randomness in the developed model
has been analyzed and found to be practically worth. The proposed work can be
scaled up to any number of nodes in a wireless network. This work can benefit
the researchers and the academicians working in the area of wireless networks.
Keywords: Node
modelling, state of the charge, fuel gauge, wireless
mobile networks, discharge-curves.
Received December 14, 2019;
accepted October 25, 2020