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Taiwanese Fruit Distributor Tracks Fresh Produce Via RFID
Je-Nong Cooperative Farm has reduced labor costs by adopting plastic crates with embedded passive UHF EPC tags to document the processing of fruit at its plant.
Oct 09, 2013—
Taiwanese fruit producer Je-Nong Cooperative Farm is employing an RFID-based solution to document the receipt and processing of its fresh fruit at its facility in Miaoli County. By using passive EPC ultrahigh-frequency (UHF) RFID tags integrated in plastic crates, the company can monitor every step that the fruit undergoes, as it happens, and the conditions within coolers before the fruit is transported to stores throughout Taiwan, as well as in China, Japan and Korea.
The system, developed by EPC Solutions Taiwan, consists of passive UHF tags, embedded in plastic crates, that are read at key locations during processing. The solution also includes active RFID sensor tags situated at cooling units to transmit temperature data to back-end software supplied by Taiwan Futaba Electronics.
Prior to the RFID solution's installation, farmers picked the fruit and loaded it into cardboard cartons that they then shipped to Je-Nong. The cooperative transferred the fruit from the boxes into plastic crates that can withstand cleaning, disinfection and waxing processes. This, the company reports, was not only time-consuming but also wasteful, since the cardboard containers could not be reused. Je-Nong's staff then manually measured and recorded the produce's weight.
Because farmers use chemical sprays to kill insects or other pests in the fields, the fruit must undergo rigorous cleaning in order to ensure that all traces of chemicals are removed from the product prior to packing. To that end, the fruit passes over rotary brushes on a conveyor, where it is scrubbed and rotated, and is then sent to a washing machine that sprays each piece with a cleaner from all sides.
The fruit next moves through a soaking tank filled with a solution of detergents and water softeners, in order to remove any dirt, bacteria or remaining insects. Wax is then applied to the fruit to protect it from scarring or moisture loss, which also extends the product's lifespan. Finally, the produce is placed into a cooler, the temperature and humidity of which was tracked using sensors that were manually monitored 24 hours a day, seven days a week, in order to maintain a record of those conditions, says Hsin-An Chang, Je-Nong's general manager. All of the recorded weight and sensor data can then be shared with customers; those in Japan have the most stringent requirements related to sensor-based data about the produce, Chang notes.
To reduce some of the labor costs expended on these processes, Je-Nong began working with Taiwan Futaba Electronics Co. and EPC Solutions Taiwan in 2011 to develop a solution that would include an RFID tag, integrated into a plastic crate, that could tolerate exposure to water and solvents, as well as the impact related to shipping, explains T.H. Liu, EPC Solutions Taiwan's president.
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