Apparatus and Method for Food Freshness and Quality Monitoring based on Container Inside Air Pressure Variation

摘要

The present invention relates to an apparatus and method for determining the freshness and safety of food by attaching a smart tag with an energy harvesting module to a food packaging material to detect a pressure change in the packaging, and to determine the freshness and safety of food. An airtight container in which food is located in a space; A sensor tag having an energy harvesting module and attached to the inside of the airtight container to sense a pressure change for monitoring food freshness and safety; sensed by a sensor tag according to a change in the state of food And a reader means for reading the sensing data, and power obtained by the energy harvesting module during a read operation by the reader means is used for sensing and transmission/reception of the sensing data.