ABSTRACT
This conclusion presents some closing thoughts on the concepts covered in the preceding chapters of this book. The book describes work done on design, analysis, and practical implementation of various optimized energy harvesting systems for sustaining self-autonomous wireless sensor nodes. These tiny, smart, and inexpensive sensor nodes, connected together into a wireless sensor network (WSN), are powered by alkaline or rechargeable batteries. As the coverage area of the WSN becomes larger, dense with many sensor nodes, problems arise in powering each of these battery-operated sensor nodes. Energy harvesting emerges as a highly potential solution to make a paradigm shift from battery-operated conventional, the WSN, towards a truly self-autonomous and sustainable energy harvesting wireless sensor network. In the vibration energy harvesting system, the energy extracted by the impact-based piezoelectric energy harvester is sufficient to power the radio-frequency transmitter load. The book demonstrates and presents the concept of magnetic energy harvesting via inductive coupling.
