Implementation of Smart Billing System using IR Sensor and XBEE Transceiver

There is an urging need to use technology in various customer based applications. To make the supermarket in a smarter way the billing system is automated. The proposed method is to prevent the illegal activities of the customers in the smart billing system implemented in the supermarket. The various components used are IR sensor, Smart card, RFID reader, Arduino UNO, LCD and XBee transceiver. The autonomous billing system uses XBee transceiver to transmit or receive the product information. A customer gets a smart card as he enters into the supermarket. For a smart card, the free unused trolley will be allotted accordingly. A person picks a product which consists of unique RFID tag and it is read by the RFID reader. The trolley consists of IR sensors to count the number of products and it is compared with the number of product sensed by the RFID reader. The adding of the product price and subtraction of the product price if it is not needed is done in the microcontroller fixed in the trolley. The total bill calculation is done in the microcontroller fixed in the reception.