This is the site of Purdue's ECE477 Team 10.
The RFID Xpr3ss system will improve the efficiency of the supermarket checkout process by reducing the time spent looking for UPC labels or printing receipts, as
well
as encourage online bill payment. It will consist of a microcontroller with Ethernet capabilities and adequate on-chip memory to store an embedded web server and
database. A serial RFID reader module, which consists of an RFID reader and antenna, will be used to emit a high-frequency signal to the transponders. The
transponders, or high-frequency passive tags or key Fobs for customer identification, send back the signal and transmit the customer ID or product serial number to the
receiver. Customers will enter their PIN on a numerical keypad after scanning their key Fob for additional security to prevent illegal use of stolen key Fobs. A
graphical LCD will be used to display the scanned item information and a running total of the purchase. After the scanning process is complete and finalized, the
Ethernet connection will be used to email a receipt to the customer. A database will be embedded in the microcontroller to relate customer IDs to personal information
and email addresses, as well as relate product serial numbers to product
descriptions and prices. An embedded web server will be used to access
this database.
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