Wisdom Sticker / Household

A refrigerator is a common home appliance. However, the foods put in the refrigerator often pass the expired date and spoil.
We propose a self-adhesive sticker, which is embedded a RFID tag. The wisdom sticker can be attached to food bag, plant, cup, or pot. When the food is put in the refrigerator, it is identified by the RFID reader embedded in the refrigerator door. The wisdom refrigerator automatically records the date and notifies us once the food is going to expire.