Highly automated UHF tag readers are used for Korean pharmaceutical inventory
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Hanmi, Korea’s largest pharmaceutical company, has developed a precise single-product inventory inventory solution (PRISMA) based on RFID technology, which uses UHF RFID smart readers to inventory single-product-level drugs. This solution is not only used in the pharmaceutical industry, but also other companies that have higher requirements for inventory management.
The smart RFID reader in the solution can automatically perform inventory counting on a regular basis, which can completely replace the process of workers holding RFID readers to read tags. In the warehouse, rails are installed on the shelves, walls or ceilings to guide the movement of the reader (as shown in the figure below). The data read by the reader is sent to the back-end inventory management database through the middleware.
In 2010, Hanmi’s information management department developed a drug tracking solution based on RFID technology. Every year, drug manufacturers attach UHF passive RFID tags to approximately 60 million drugs to track the process of drug production, packaging, and circulation. In the past two years, Hanmi has also developed an RFID intelligent shelf management system that serves hospitals and pharmacies to track the location of shelf drugs and whether they are within the shelf life. However, the tag reading rate is not optimistic, and the installation cost of the antenna is relatively high. To this end, on the basis of the intelligent shelf management system, the company has developed an intelligent inventory counting solution with a reader that can dynamically read tags.
In the PRISMA scheme, the electric energy required for the movement of the reader comes from the guide track, and no additional electric energy is required. In addition, the reading device also includes a 10-inch touch control panel, the staff can adjust the reading and writing speed and reading frequency. The read data is uploaded to the background database via Wi-Fi or cellular network.
The highly automated reading device has a built-in LS Industrial System (LSIS) RFID reader. The reading chip comes from Impinj, and the height can be extended to 30 meters as required. The reading range is 3-5 meters, and the best reading distance is 1 meter; when the moving speed is set to 0.6-0.9 m/s, 2500-3000 tags can be read within a unit distance. In addition, the label also has a barcode scanning function.
After adopting the automatic reader, the number of readers and antennas required for inventory counting in the same range is greatly reduced, and the efficiency of inventory counting is greatly improved, saving labor. The application of this program is not limited to the inventory of medicines, but can also be applied to the clothing industry, libraries, etc.
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