{"id":4745,"date":"2012-03-23T08:25:09","date_gmt":"2012-03-23T14:25:09","guid":{"rendered":"http:\/\/www.barcodesinc.com\/news\/?p=4745"},"modified":"2019-09-16T13:09:24","modified_gmt":"2019-09-16T19:09:24","slug":"rfid-chip-based-serialization-for-retail","status":"publish","type":"post","link":"https:\/\/www.barcodesinc.com\/news\/rfid-chip-based-serialization-for-retail\/","title":{"rendered":"RFID Chip-Based Serialization for Retail"},"content":{"rendered":"

An alternative to IT solutions for managing item-level tagging<\/h3>\n

Item-level radio frequency identification (RFID)<\/a> using standard Electronic Product Codes (EPCs) is rapidly becoming a key factor in improving retail inventory management<\/a>. The main driver for adoption is quite simple\u00e2\u20ac\u201dtaking inventory with RFID is 25 times faster than with bar codes. RFID is faster for two reasons. First, it does not require line of sight access to the tag. Second, the person operating the reader does not have to ensure that they only scanned each tag once.<\/p>\n

The key difference is that RFID uses radio waves to count large numbers of tags simultaneously, even if a stack of garments covers the tags or if they are inside a box. During the inventory process, readers often scan each tag several times. For this reason, accurate counts are only possible if each tag carries a unique serial number. In addition to rapid counting, serialization enables the tracking and tracing of individual items throughout the product lifecycle\u00e2\u20ac\u201dan additional benefit for some product categories.<\/p>\n

As major retailers like Walmart, J. C. Penney, and Macy\u00e2\u20ac\u2122s roll out item-level RFID, brand owners must find a low-cost, reliable way to implement serialization. Because serialization is new for most apparel suppliers, it has the potential to be disruptive to existing packaging and labeling business processes. Chip-based serialization is a way to avoid disruption by IT projects, constrained supply chains, and extra serialization costs.<\/p>\n

Serialization can be regarded as an IT problem that requires an enterprise software solution to allocate and distribute serial numbers, but it doesn\u00e2\u20ac\u2122t have to be. Chip-based serialization is a non-IT alternative that preserves sourcing flexibility and uses the existing business process for tagging and ticketing. To help retailers understand serialization, this paper overviews EPC concepts for item-level RFID, reviews IT-based approaches to serialization, and introduces chip-based serialization as an attractive solution.<\/p>\n

EPC Concepts<\/h3>\n

With traditional retail bar codes, all products of the same make and model carry an identical Universal Product Code (UPC) containing a GS1-standard General Trade Item Number (GTIN). Bar codes use visible lines and spaces to represent UPC data, while RFID tags<\/a> contain a chip with digital memory for storing EPCs. EPCs are like UPCs except that they include a serial number along with the GTIN to form a serialized-GTIN or SGTIN. Brand owners are responsible for writing the correct EPC data into this memory location using an RFID-enabled printer\/encoder, other specialized RFID equipment, or a service provider.<\/p>\n

The SGTIN standard used in retail today contains a 96-bit data field. Of this\u00c2\u00a0field, it uses 58 bits of data for the GTIN that describes the make and model\u00c2\u00a0of the item, and 38 bits of data for the serial number. It is up to the serializing\u00c2\u00a0party (typically the brand owner) to ensure that the serial number is unique\u00c2\u00a0with respect to the GTIN. This means that no item with the same GTIN has the\u00c2\u00a0same serial number. Thus, each item carries a unique ID\u00e2\u20ac\u201da key requirement\u00c2\u00a0for inventory counting purposes.<\/p>\n

IT-based Serialization<\/h3>\n

In IT-based approaches to serialization, software or an administrative process is used to manage serial number allocation. Such solutions can range from a server that distributes serial numbers in small batches on demand, to a spreadsheet containing large number ranges assigned to locations, service providers, or devices that produce tags.<\/p>\n

In all IT solutions, serialization is a two-step process. First, serial numbers are allocated and distributed to the point of use, and second, they are combined with the GTIN to produce a complete EPC. The final EPC is then sent to the printer or other encoding device for writing into the RFID tag chip\u00e2\u20ac\u2122s memory. Development, deployment, and maintenance of the software, systems and business processes for allocation and distribution of serial numbers, and the construction of EPCs, is a primary source of complexity in large-scale, global RFID tagging.<\/p>\n

As one example, sometimes referred to as \u00e2\u20ac\u0153dynamic\u00e2\u20ac\u009d allocation, serial numbers are allocated in small batches to global points of use on an on-demand basis. This approach depends on continuous connectivity and seamless software integration between the server and the remote usage points. In the global apparel-manufacturing industry, high-availability IT infrastructure alone remains a significant challenge, not to mention diversity of equipment an suppliers that make seamless integration difficult. Thus, small errors and system failures can disrupt operations, or produce duplicate tags.<\/p>\n

At the other extreme, each tag producer (e.g., factory location or even printer device) is assigned a specific number range. This approach, called \u00e2\u20ac\u0153static,\u00e2\u20ac\u009d seems simpler than the dynamic approach, but the constant change in apparel manufacturing operations requires tracking number usage so that number ranges can be re-assigned and re-allocated as needed. This complexity leads to business processes that have significant chance of error and duplication.<\/p>\n

Chip-based Serialization<\/h3>\n

Fortunately, chip-based serialization offers a third approach that avoids the trade-offs of IT-based serialization. In addition to the EPC memory, many RFID chips have another memory location called the Tag Identifier (TID) that is written only once by the chip manufacturer. The TID includes make and model information for the chip as well as a serial number. In chip-based serialization, the EPC serial number comes from the TID on the chip instead of an IT system. Now the entire process is simplified\u00e2\u20ac\u201dthe distribution of RFID tags also distributes serial numbers.<\/p>\n

During RFID label printing and encoding<\/a>, the printer or other RFID encoding system produces the complete EPC internally. This method combines the GTIN from the printer driver (as normally required for bar code printing) with the TID serial number from the tag chip. From a business-process, software, and variable data management perspective, producing an RFID label using chip-based serialization is no different than producing a traditional bar code label. The serialization happens under the printer\u00e2\u20ac\u2122s hood.<\/p>\n

With chip-based serialization, a brand owner relies on an RFID chip vendor to accurately serialize its tag chips rather than on an internal system or a third party. Chip manufacturers are already in the business of precise serialization because many downstream applications rely on this TID feature. Using the TID for serialization is a win for the brand owner because the chip vendor has already made the serialization investment.<\/p>\n

Brand owners who implement chip-based serialization can take advantage of the investment already built into the tags they are buying. However, the brand owner must give some thought to proper implementation of the chip-based approach. Some considerations include how many bits from the TID to leverage, and how to ensure compatibility with prior or existing serialization solutions as part of a migration plan, or for ongoing operations. Once designed, brand owners can implement a chip-based serialization solution easily and safely. We recommend that interested brand owners contact the authors of this paper for further discussion.<\/p>\n","protected":false},"excerpt":{"rendered":"

An alternative to IT solutions for managing item-level tagging Item-level radio frequency identification (RFID) using standard Electronic Product Codes (EPCs) is rapidly becoming a key factor in improving retail inventory management. The main driver for adoption is quite simple\u00e2\u20ac\u201dtaking inventory with RFID is 25 times faster than with bar codes. RFID is faster for two […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[96],"tags":[256,2268,213,257,13],"yoast_head":"\nRFID Chip-Based Serialization for Retail - Barcoding News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.barcodesinc.com\/news\/rfid-chip-based-serialization-for-retail\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RFID Chip-Based Serialization for Retail - Barcoding News\" \/>\n<meta property=\"og:description\" content=\"An alternative to IT solutions for managing item-level tagging Item-level radio frequency identification (RFID) using standard Electronic Product Codes (EPCs) is rapidly becoming a key factor in improving retail inventory management. The main driver for adoption is quite simple\u00e2\u20ac\u201dtaking inventory with RFID is 25 times faster than with bar codes. 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