RFID tags for identifying and verifying agrochemicals in food traceability systems |
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Authors: | Sven Peets C P Gasparin D W K Blackburn R J Godwin |
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Institution: | (1) Cranfield University, Silsoe, Cranfield, Bedfordshire, MK45 4DT, UK |
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Abstract: | The objective of this paper is to identify what data should be stored in an automatic recording system to trace the use of
agrochemicals. RFID tags are proposed as the most appropriate storage systems. The essential information to store on an RFID
tag is as follows: country of registration, chemical type, unique registration number of an agrochemical, container size,
specific gravity, unit of measure, and a digital signature. Digital signatures address issues of verification of data integrity
and security—a major concern of the agrochemical industry. Detailed data will be drawn from publicly available databases of
approved pesticides. Encoding schemes have been designed which can record all of the essential information on commonly available
cheap RFID labels. A prototype system to record and transfer data in a traceability system is developed, including hardware
and software aspects. The user interface of the system is presented with a sample sequence of user screens to assist the loading
of a full pack of agrochemical tagged with an RFID transponder. An experimental trial with practicing agrochemical professionals
was undertaken. The user interface proved effective and acceptable. During the trial, more than 250 product identification
cycles with RFID were carried out without failure. |
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Keywords: | RFID Agrochemical identification Traceability systems Data verification Data security |
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