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Area of Science:

  • Electrical Engineering
  • Computer Science
  • Environmental Science

Background:

  • Internet of Things (IoT) devices are increasingly integrated into daily life, often relying on battery power.
  • Battery usage in IoT devices contributes to a significant global carbon footprint.
  • Energy harvesting can mitigate but not eliminate the issue of battery disposal.

Purpose of the Study:

  • To emphasize the importance of monitoring and reducing power consumption in battery-powered IoT devices.
  • To provide a method for understanding and optimizing device power draw.

Main Methods:

  • Focus on current consumption as a key measurable parameter for power monitoring.
  • Development of a testbed facility for real-time current consumption measurements.
  • Analysis of power draw, particularly during radio communications.

Main Results:

  • The developed testbed facilitates real-time current consumption monitoring.
  • Insights gained can be used to optimize duty cycles and extend battery life.
  • Radio communications identified as the primary source of current consumption in IoT devices.

Conclusions:

  • Minimizing current consumption, especially during radio transmissions, significantly extends IoT device battery life.
  • Optimized power management reduces the overall carbon footprint of electronic devices.
  • Real-time monitoring is key to achieving efficient power usage in the Internet of Things.