Self-Harvested Energy Implementation for Smart Hub using Raspberry Pi
Smart homes are the components of developing smart cities. In recent years, countries around the world are taking efforts in promoting smart cities. Smart homes are the stimulating technological advancement which will make people’s lives more convenient. The development of smart homes involves access control of the building’s electricity, energy harvesting and storage for the active electronic devices and circuitries and wireless communication for smart switches and smart sockets. In order to design a smart home system, a practical design and implementation of security (access control system) for a building’s power supply which adds a locking feature such that only authorized personnel are capable of altering the facility state of the smart sockets and switches in a building is needed and also a model of energy harvesting and storage system for the active electronic components of the circuitries and wireless communication for smart switches and sockets. The access control involves main four stages (a control unit, a comparator unit, a memory unit and thus the switching unit).The access control system provides a means of access control by having a security keypad that switches ON or OFF the building’s electricity, provided the user knows security pin code. System also harvests and stores energy for all the active electronic devices employing a photovoltaic system with an ultra capacitor energy buffer. The designed secured smart home utilized smart power and switches and message queuing telemetry transport for straightforward controlling energy usage. The experimental results show an improvement in security as well as in energy management building.