Transmission efficiency of >40% is achieved on a circular plane with a diameter of в€ј40 cm. The resonator devices-dielectric-constant disks or planar helixes-are located on both sides of the metasurface, which comprises conducting wires placed in a planar sunburst pattern.

In this article, we propose a novel metasurface-based magnetic coupling resonant wireless power transfer (MCR-WPT) system to realize planar omnidirectional WPT at a mid-range distance. Experimental tests demonstrate that the proposed system for smart home control networks is practically feasible and performs well. Moreover, a prototype for the proposed smart home control network with the smart control algorithm was implemented. Numerical results indicate that the electricity consumption on a sunny or cloudy day can be reduced by at least 40% under the smart control.

The energy saving of lighting systems relative to those without smart control was evaluated. Additionally, a smart control algorithm for lighting systems and an analysis of illumination of a fluorescent lamp were presented. According to experimental results, the impact of wireless interference on the proposed smart home control network is substantially mitigated. The control messages for home appliances are directly transferred using PLCs rather than WSNs. The coordinator is responsible for transferring environmental parameters obtained by WSNs to the management station via PLCs.

An isolated WSN with one coordinator, which is integrated into the PLC transceiver, is established in each room. The goals are to reduce the impact of wireless interference on a smart home control network and unnecessary energy consumption of a smart home. Wireless sensor networks (WSNs) and power line communications (PLCs) are used in this work to implement a smart home control network.

Home control systems