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Frozen food control using RFID

IP.com Disclosure Number: IPCOM000132287D
Original Publication Date: 2005-Dec-06
Included in the Prior Art Database: 2005-Dec-06
Document File: 1 page(s) / 37K

Publishing Venue

IBM

Abstract

Disclosed is a system to control the correct conservation procedure of frozen foods. For security reasons, frozen foods must be taken in low temperature area in order to avoid bacterial activity. It is important to maintain a continuous low temperature in order to give a guaranty to the final customer. The disclose invention allows to control the cumulative time and longest duration outside a suitable location like a freezer.

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Frozen food control using RFID

The disclose invention allows to control the cumulative time and longest duration outside a suitable location like a freezer. The presented system needs only few modifications and it does not need a sensor attached to each food container or food label.

In order to perform a continuous control for the frozen foods, the proposed system uses two types of devices: a RFID chip associated to each food container, or label, and a scanner associated to each industrial and individuals freezers.

The RFID chip is a classical RFID with the following additional features:

- A register to store the conditioning date. - A counter to count the cumulative time inside a valid freezer (describe as "Time Counter") - A register to store the last know current date (describe as "Time Stamp Register" ) - A register to store the Maximum duration when the food is outside a freezer (describe as "Max Outside Duration")

    The scanner is able to detect and to activate each RFID attached to the food inside the freezer. When the RFID chip is inside a freezer and the freezer exhibit a valid conservation temperature, the RFID is activated and the RFID "Time Counter" is incremented on a regular basis to reflect the total duration inside a valid freezer. The register containing the last time stamp ("Time Stamp Register") is also updated on a regular basis. The time counter allows knowing the total time corresponding to the cumulative time during the food was placed inside...