Refrigerator shelf life management system based on RFID

Abstract

The present invention discloses a refrigerator shelf life management system based on RFID. The system comprises a refrigerator body, an RFID reading and writing device, a display module, an editing module, a control module, and a plurality of RFID tags. The RFID tags are used for storing the names of foods and shelf life information and are provided with clips for clamping the foods placed into a refrigerator. The RFID reading and writing device is arranged in the refrigerator and is used for reading or writing the information in each RFID tag. The editing module is used for sending an editing instruction which edits the information in each RFID tag to a control module. The display module is arranged on the refrigerator door of the refrigerator body and is used for displaying the food name in each RFID tag in the refrigerator. The control module controls the working of each module and carries out highlighted display of expiring food. The refrigerator shelf life management system has the advantages of simple structure and convenience in use, the shelf life of the food in the refrigerator can be managed, and the food expiration can be prevented.

Description

technical field [0001] The invention relates to the field of RFID applications, in particular to an RFID-based refrigerator shelf life management system. Background technique [0002] RFID is the abbreviation of Radio Frequency Identification, that is, radio frequency identification, which is a non-contact automatic identification technology. It automatically identifies the target object through radio frequency signals, and can quickly track items and exchange data. The identification work does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is fast and convenient. RFID technology was born during World War II. It is the successor of traditional barcode technology, also known as "electronic tag". [0003] The basic working principle of RFID technology is not complicated: after the tag enters the magnetic field, it receives the...

AI Technical Summary

Problems solved by technology

3. Anti-pollution ability and durability, the carrier of traditional barcode is paper, so it is easy to be polluted, but RFID has strong resistance to substances such as water, oil and chemicals

6. The memory capacity of data is large. The capacity of one-dimensional barcode is 50Bytes, the maximum capacity of two-dimensional barcode can store 2 to 3000 characters, and the maximum capacity of RFID is several MegaBytes. With the development of memory carrier, the data capacity is also expanding continuously. trend

[0009] Existing refrigerators do not have a shelf life management system, and it is often easy for food to expire and have to be thrown away