Abstract
Applying the renewable energy, such as the solar energy, would be a promising way to realize the self-powered and sustainable wireless sensing for temperature monitoring in food storage. This paper developed and proposed a solar energy harvesting and wireless charging based temperature monitoring system for food storage. The system includes the solar energy harvesting, wireless charging and wireless temperature sensing. The wireless charging performance between the wireless charging transmitter and wireless sensor node, the energy consumption performance of wireless sensor node, the wireless temperature monitoring performance and the deployment and improvement performance of the solar energy harvesting and wireless charging based temperature monitoring system were analyzed and evaluated. The proposed and developed system could effectively wirelessly monitor the temperature in real time by solar energy harvesting and wireless charging to ensure the food quality and safety in storage. The proposed system also has a potential application example for many kinds of food monitoring by renewable energy harvesting or wireless charging to improve the sustainability, quality and safety of food in storage or supply chain.
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