rfid and barcodes compared

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content introduction i. theoretical part 1. definition of bar code and rfid 2. types of bar code 3. tags of rfid ii. practical part 4. rfid and barcodes compared introduction today’s modern supply chain businesses leverage a combination of rfid tags and readers, barcode labels and long-range mobile scanners to increase the speed and ease of data collection to asset tracking. by combining barcode and rfid data capture methods and relational database software, supply chain businesses can improve the speed and accuracy of their processes, including locating, retrieving, and accounting for anything that moves in or out of the facility. supply chain businesses that leverage mobile barcode and rfid solutions are able to increase turnover and optimize inventory, as well as improve the accuracy of their manufacturing, ordering, and/or shipping. when productivity is significantly improved, resources can be reallocated to higher-value activities or more vital areas. radio frequency identification (rfid) …

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ss production of epc tags is creating the largest rfid system that will have a long-term impact on society. the final part categorizes the different security threats to epc and challenges to overcome. the advent of rfid systems is now attracting considerable attention from a number of uk retailers. it seems likely to enhance the ways in which retailers gather intelligence about their operations and their customer, it will require a fundamental review of their strategic planning processes and some commentators argue that it will bring transforma-tional change throughout the supply chain. the advent of radio frequency identification (rfid) technology has created a tidal wave of in-formation, research and articles that praise this new technology. major retailers such as tesco, marks & spencer, wal-mart, and prada have already started utilizing this new technology in their supply chains, although some have adopted a wait and see approach. 1. definition of bar …

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application software became available for devices that could read images, such as smartphones with cameras. the barcode was invented by norman joseph woodland and bernard silver and patented in the us in 1952 (us patent 2,612,994). the invention was based on morse code that was extended to thin and thick bars. however, it took over twenty years before this invention became commercially successful. an early use of one type of barcode in an industrial context was sponsored by the association of american railroads in the late 1960s. developed by general telephone and electronics (gte) and called kartrak aci (automatic car identification), this scheme involved placing colored stripes in various combinations on steel plates which were affixed to the sides of railroad rolling stock. two plates were used per car, one on each side, with the arrangement of the colored stripes encoding information such as ownership, type of equipment, and identification …

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of tags, readers, communication protocols, computer networks, and databases. a typical rfid system being standardized by epcglobal is shown in figure 1. the tag is a miniature chip containing product information with an affixed radio antenna. the tag is attached to an item or its packaging and contains a unique serial number called an electronic product code (epc). the epc is used to uniquely identify the pallet, case, or item. for low-cost tags, a reader transmits a radio signal to the tags to energize them so that the tag can transmit its epc. a reader can be either stationary in a fixed state or handheld. there are communication protocols that define the exchange of messages from the tag to reader and reader to tag. the readers are connected to a computer network so that they can be queried by a management system. then the management system can query a database …

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dio frequency (rf) field. a reader, also known as an interrogator, is a device used to query one or more tags within its range and communicate with them. it consists of one or more antennas that emit radio waves and receive signals from one or more tags. the reader sends a request as an interrogating signal for identification information to the tag. the tag wakes up and responds or broadcasts with the respective information by sending an encoded modified signal, which the reader decodes, forwarding it to the data processing device [1], [2]. a data processing device aggregates the information from multiple tags and processes data. it provides a distributed database of information about items identified by tags and is positioned between readers and enterprise applications. it can provide a variety of computational functions on behalf of applications [3]. today, retailers and their suppliers use the rfid-based epc system like …

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content introduction i. theoretical part 1. definition of bar code and rfid 2. types of bar code 3. tags of rfid ii. practical part 4. rfid and barcodes compared introduction today’s modern supply chain businesses leverage a combination of rfid tags and readers, barcode labels and long-range mobile scanners to increase the speed and ease of data collection to asset tracking. by combining barcode and rfid data capture methods and relational database software, supply chain businesses can improve the speed and accuracy of their processes, including locating, retrieving, and accounting for anything that moves in or out of the facility. supply chain businesses that leverage mobile barcode and rfid solutions are able to increase turnover and optimize inventory, as well …

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