ABSTRACT
Sensor networks (SNs) are a significant technological and economic system for worldwide industries and find applications in personal electronics, healthcare, defense technology, monitoring the environment and infrastructure, and many more. One of the issues accompanying with small size and portability of sensors is the power source. With growing trends of electronic gadgets in a smaller size, lighter weight, and easy to carry, a maintainable power-providing alternative is required for the forthcoming intelligent world, where conventional batteries have a finite lifespan, environmental concerns, and frequent restoration. Several technologies like solar, thermal, mechanical, and chemical energy harvesting are emerging methodologies integrated with several sensors for performing continuously. An innovative generation of self-powered sensors (SPSs) based on wireless sensor networks (WSNs) has recently established its identity by linking the gap between energy harvesting and the energy essential for storage, sensing, communication, and computation. Thus, SPSs are being progressively used and created as capable solutions to conventional WSNs. In this chapter, we methodically summarize the evolution made by the SPSs in various fields of application, discuss perspectives, and finally, a futuristic approach to this technology.
