Smart Purchase in Supermarkets Using Rfid

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  • Topic: RFID, Microcontroller, Serial port
  • Pages : 7 (1648 words )
  • Download(s) : 407
  • Published : September 7, 2010
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SMART PURCHASE IN SUPERMARKETS USING RFID

OBJECTIVE:
To provide effective customer service in supermarkets by rising the efficiency of total supply chain through quick billing of products. •To achieve operational excellence and effective supply chain management. ABSTRACT:

Shopping seems to be a good entertainment. But the huge queue in the supermarkets to scan the products frustrates the customers . Barcode scanning is a time consuming process engaging the customers to stick to the billing section for a long time. Hence there is a need to switch to a Radio Frequency Identification (RFID) system for smart purchase and instant billing . Our Application blends Radio Frequency Identification (RFID) and wireless technologies to provide 'on the spot’ billing in supermarkets. Each product is given a specific RF- Tag. Unlike barcodes, it uniquely identifies the product. In addition, they do not require physical scanning. The RF-Tags are constantly transmitting their presence to the RF Reader positioned on the shopping trolley. When a product is dropped into the trolley, its name and cost are displayed instantly on the LCD fixed to the trolley. At the check-out, the smart shopping trolley system transmits the list of items and total cost to the cashier using wireless technology. This promotes quick shopping and immediate pay without any queuing process. It reduces labor efforts and increases efficiency by minimizing errors.

KEYWORD: RFID, Instant billing system, Rfmodem for transceiver, Filemanagement

EXISTING METHOD:
Generally in supermarkets, Barcode scanning is a time consuming process engaging the customers to stick to the billing section for a long time. • Hence, there is a need to switch to a Radio Frequency Identification (RFID) system for smart purchase and instant billing .

BLOCK DIAGRAM:

EXPLANATION:

Each product has its unique tag. When the product is dropped into the trolley its specific code is scanned by the RF reader. The data is sent to the microcontroller through UART. From the microcontroller the code is sent to the PC through Transceiver section. Transceiver section has RF modem with unipolar antennas.In the PC, database is maintained by file management system using C language. The product corresponding to the code and its cost stored in the files are transferred to the Transceiver section . The corresponding data is sent to the microcontroller. LCD is interfaced with the microcontroller to display the product name and cost. Sometimes people may find difficult to identify where the amount is printed in the pack. Here another advantage is that they can easily identify the product cost by dropping in the smart trolley. Similarly the total cost manipulated by the PC will also be sent to the LCD as well as the Printer . Hence the bill can be got instantly after completion of purchase. Shopping itself a good entertainment. Everything can be got in a less price except satisfaction. People are frustrated while standing in the queues for a long time to get the bills. So we have developed a smart purchasing system for quick billing and to improve operational excellence in modern supermarkets. FLOW DIAGRAM:

RFID SYSTEM:
RFID (Radio Frequency Identification) is a means of storing and retrieving data through electromagnetic transmission to an RF compatible integrated circuit, and is now being seen as a radical means of enhancing data handling processes. SYSTEM COMPONENTS:

RFID systems have several basic components or technical characteristics that define them. These are: A reader, including an antenna
The device that is used to read and/or write data to RFID tags. A tag
A device that transmits to a reader the data.
The communication between them.
RFID uses a defined radio frequency and protocol to transmit and receive data from tags. TYPES OF RFID TAGS:
RFID tags can be segregated into two major classifications by their power source: • Active...
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