Sensor-based Life Detection of Solar Cells

To address the challenge of limited node lifespan in outdoor sensor networks, this study introduces an innovative micro-solar system that goes beyond traditional methods of reducing power consumption, such as data compression and low-power routing. The proposed system integrates solar panels to harness solar energy, which is then stored in a novel low-self-discharge nickel-hydrogen AAA battery. To further extend the battery’s lifespan, a battery-driven design approach was utilized during the system's development. A prototype was constructed and deployed for continuous outdoor testing, with data sampling at 10-minute intervals and a 15-second sampling rate. Over four weeks, the system's performance was evaluated, focusing on the voltage levels of the charging battery pack, which were monitored continuously for seven days. The findings confirm that the system aligns perfectly with the design strategy, demonstrating high reliability, cost-effectiveness, and practical feasibility. This research not only provides a viable solution for extending sensor node longevity but also contributes to the broader integration of renewable energy in sensor network applications, paving the way for more sustainable and efficient network designs. © 2025 Slovene Society Informatika. All rights reserved.