Trolley Based Automatic Billing System

Now a days despite the presence of online shopping people choose to buy products only in supermarkets and in megamalls for the sake of their own satisfaction. One of the common difficulties faced by customers in supermarket is to follow the long queue for billing the items purchased. Even though if the customer purchased only one or two products there is no other way that the person has to wait in a queue for billing items. Another difficulty lies in pulling the trolley from rack to rack and collecting items and the customer has to keep track of the items purchased in order to fit within his budget. In order to avoid such headache of pulling the trolley, waiting in a queue for billing, thinking of budget, we propose a system which makes shopping much easier and reliable. Our aim is to design a smart trolley which follows a customer while purchasing and all the billing operations are performed in the trolley itself. By using RFID technology the product is scanned and the purchased product information will be sent to the central billing system through zigbee module. At the billing section the customer has to tell the trolley number and pay for the items purchased. The proposed system prevents theft and also facilitates the users in case if the product is dropped unknowingly in the cart by cautioning them.