Automatic Shopping Trolley Using IoT

Abstract

Nowadays activities such as shopping at big malls is really increasing in various cities. We can see huge crowd at the shopping malls on public holidays ,weekends and specially during the festivals which can cause rush at the billing counters. After purchasing the products the customers need to wait in long queues at the billing counter for payments. At billing counter the cashier needs to scan each product using barcode scanner for calculating the amount of product to generate a bill which is very time consuming. In this project, we are going to implement the RFID card scanner on the trolley itself and an automatic billing system in the shopping malls using the WI-FI to transfer the data into the database . The structure of the trolley consists of a door which will block the products to be entered without scanning for security purpose. The trolley has the inbuilt product code reader. The use of product code reader is to read the RFID cards/tags attached to all products to define the name ,weight ,quantity and price of the products. Depending on the signal from the reader, the controller display the name and price of the each product on the LCD display. The wireless billing system is uses the Wi-Fi for data transfering to the cashier . A load cell has been attached so that even if the RFID is not read, the weight of the product is also been measured. If the weight of the products appears to be more than displayed on the LCD screen product code reader then an error message in billing system so that bill can be generated only for the scanned products.