Abstract
Information and communication technologies (ICT) are major features of smart cities. Smart sensing devices will benefit from 5 G and the Internet of Things, which will enable them to communicate in a safe and timely manner. However, the need for sustainable power sources and self-powered active sensing devices will continue to be a major issue in this sector. Since their discovery, piezoelectric energy harvesters have demonstrated a significant ability to power wireless sensor nodes, and their application in a wide range of systems, including intelligent transportation, smart healthcare, human-machine interfaces, and security systems, has been systematically investigated. Piezoelectric energy-harvesting systems are promising candidates not only for sustainably powering wireless sensor nodes but also for the development of intelligent and active self-powered sensors with a wide range of applications. In this paper, the various applications of piezoelectric energy harvesters in powering Internet of Things sensors and devices in smart cities are discussed and reviewed.
Highlights
Smart cities play an important role as innovation drivers for businesses in a variety of industries, including health, the environment, and information and communication technology (ICT)
The Internet of Things (IoT) has been identified as a determining pillar of ICT, characterised as a huge network architecture built on the capacity to share information and connect it with physical items, such as electric automobiles or drones [4]
Piezoelectric energy harvesters are promising candidates to generate power energy harvesters that have the capability of generating electricity for remote sensors and from surrounding vibration sources
Summary
Smart cities play an important role as innovation drivers for businesses in a variety of industries, including health, the environment, and information and communication technology (ICT). The past automate and improve processes the cities These systems canasuse de-of decade has seen within the implementation of numerous applications, wellintelligent as the resolution linkedthe with these applications. Scholars have conducted many studies on the transition of kinetic energy from surrounding the applications that have been deployed in such cities, having less negative impactenergy on sources, such as humans [17], wind or airflow [18], and water current or waves [19]. Researchers have developed a variety of methods for harThis review provides an overview of the protentional applications of vibration-based vesting energy from diverse sources, wind,ofsolar, heat, motion, vibration. Energy harvesters thatincluding have the capability generating electricity for and remote sensors and devices in smart cities. Energy harvesters thatincluding have the capability generating electricity for and remote sensors and devices in smart cities. on the transition of kinetic energy from surroundScholars have conducted many studies ing energy sources, such as humans [17],Harvesting: wind or airflow and water current or waves
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