IoT system becomes a hot topic nowadays for smart home. IoT helps devices to communicate together without human intervention inside home, so it is offering many challenges. A new smart home IoT platform powered using electromagnetic energy harvesting is proposed in this paper. It contains a high gain transmitted antenna array and efficient circularly polarized array rectenna system to harvest enough power from any direction to increase lifetime of the batteries used in the IoT system. Optimized energy consumption, the software with adopting the Zigbee protocol of the sensor node, and a low-power microcontroller are used to operate in lower power modes. The proposed system has an 84.6-day lifetime which is approximately 10 times the lifetime for a similar system. On the other hand, the proposed power management circuit is operated at 0.3 V DC to boost the voltage to ~3.7 V from radio frequency energy harvesting and manage battery level to increase the battery lifetime. A predictive indoor environment monitoring system is designed based on a novel hybrid system to provide a nonstatic plan, approve energy consumption, and avoid failure of sensor nodes in a smart home.

中文翻译：

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使用射频能量收集的智能家居物联网系统

物联网系统已成为当今智能家居的热门话题。物联网可帮助设备在无需人工干预的情况下在家中进行相互通信，因此带来了许多挑战。本文提出了一种新的基于电磁能量收集的智能家居物联网平台。它包含一个高增益发射天线阵列和高效的圆极化阵列整流天线系统，可以从任何方向收集足够的功率，以延长IoT系统中使用的电池的使用寿命。经过优化的能耗，采用传感器节点的Zigbee协议的软件以及低功耗微控制器用于在低功耗模式下运行。拟议的系统具有84.6天的寿命，约为类似系统寿命的10倍。另一方面，建议的电源管理电路工作在0。3 V DC，可通过射频能量收集将电压升至〜3.7 V，并管理电池电量以延长电池寿命。基于新型混合系统设计了一种预测性室内环境监控系统，以提供一个非静态计划，批准能耗并避免智能家居中的传感器节点发生故障。