Self-Powered Wireless Flexible Sensing for Food Storage Based on Triboelectric-Electromagnetic Generator

Abstract

In the controlled atmosphere (CA) storage of food, it is particularly important to control the concentration of the CA gas and to master information such as the temperature and humidity of the food surface. This paper proposes the application of a self-powered wireless flexible sensing system based on a triboelectric-electromagnetic generator in food CA storage. To configure certain concentrations of mixed CA gases, we need to accurately control the volume of CA gas input into the mixed gas tank within a certain period, and the gas flow velocity in the pipeline will directly affect this factor. The gas flow velocity in the pipeline is detected by the CA gas flow velocity detection part (FVS) with an independent layer working mode triboelectric nanogenerator (FV-TENG) as the main component. At the same time, a flexible temperature and humidity sensor (THS) attached to the surface of the food monitors the temperature and humidity of the food surface in real-time. EMG collects irregular wind energy in the CA warehouse to provide energy for the processing of information in the system and wireless transmission to the IoT cloud platform, realizing the system's self-power and wireless transmission. This self-powered wireless sensing system enables remote collection of flow velocity detection of CA gases, precise control of the concentration of mixed controlled atmosphere gases, and real-time monitoring of temperature and humidity on the food surface in the CA warehouse. This system proposes a new idea for the development of a self-powered wireless sensing system in the field of food storage

Keywords: Keywords: Triboelectric generator, Self-powered system, CA storage for foods, FVS, EMG, Flexible sensing