The NFC multi label reading and writing module solution developed by Zhongneng IoT is mainly achieved through the built-in smart refrigerator, which is equipped with NFC smart refrigerator stickers or refrigerator NFC electronic food clips to read the freshness time data of household or commercial refrigerator ingredients, thereby achieving real-time management reminders of the freshness period of refrigerator ingredients. Users can understand the storage time or expiration time of ingredients through the smart refrigerator screen or mobile app. At present, Joinet has developed an NFC multi label read and write module that has achieved over 16 fast reads.