Radio Frequency Identification Based Smart Shopping Trolley

Electronics and Communication Engineering

In metro cities we can see you a huge rush at shopping malls on holidays and weekends. This becomes even more when there are huge offers and discounts. Now a days people purchase a variety of items and put them in the trolley. After total purchasing one should approach counter for billing purpose. By using barcode reader the cashier prepares the bill which is a time consuming process. This results in long queues at the billing counters. This project presents an idea to develop a system in shopping malls to overcome the above problem. To achieve this all products in the mall should be equipped with RFID tags and all trolleys should be equipped with a RFID reader and LCD screen. When one puts any product in the trolley its code will be detected automatically, the item name and cost will be displayed on the LCD, thereby the cost gets added to the total bill. If we wish to remove the product from the trolley, you can take away the product and the amount of that specific product gets deducted from total amount and the same information passes to the central billing unit via Zigbee module. Hence the billing can be done in the trolley itself thereby saving a lot of time to customers. Along with this DC Motors are added to the trolley to make its movement easier and at the same time, low cost vacuum cleaners are placed at the bottom of the trolley for cleaning purpose.

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