Warehouse/DC Management: RFID settles in

With suppliers jumping on the RFID bandwagon and more deployments looming on the horizon, the future of RFID remains promising. Here are the market drivers that continue to push ADC/RFID adoption and examples of facilities that are putting it to work.

<p>Multi-modal handheld RFID readers with voice technology and scanning capabilities can acquire, in real-time, proof of identification and monitor an asset’s location and its current status.</p>

Multi-modal handheld RFID readers with voice technology and scanning capabilities can acquire, in real-time, proof of identification and monitor an asset’s location and its current status.

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From keyless ignitions to moisture-sensing diapers, RFID technology continues to permeate everyday living. In today’s supply chains, the technology relies on readers and passive UHF tags to automatically and wirelessly capture and leverage electronic product codes (EPC) encoded with product information and serialization. 

Unlike a bar code, these tags do not need to be within line of sight of the reader, resulting in increased operational efficiencies. Unloading an inbound container, for instance, which may take about two and a half hours to individually scan, sort, and count cartons, may now take less than half an hour with RFID-tagged cartons.

Despite these proven benefits, however, RFID’s adoption in the supply chain has been wrought with twists and turns. Wal-Mart’s initial focus of tagging pallets and cartons of consumer goods has for the most part “languished on the vine,” according to some experts. Instead, in 2010, the retail giant decided to shift its focus and began tagging at the item level. Other U.S. retailers, including Macy’s, Bloomingdales, and American Apparel followed suit, launching their own successful item-level RFID pilots of mostly apparel and footwear, reporting much improved visibility and higher sales at their stores.

Today, item-level tagging remains one of the biggest drivers of RFID adoption. “Those with pilot projects last year are now in full deployment, and that represents big progress for the industry,” reports Mike Liard, vice president of auto ID and data capture for VDC Research. “We’ve got some new retailers on board who are international players and who are significantly enhancing the volume.”

In fact, these early item-level adopters are now busy fine-tuning the process. “They want to know how to deploy RFID faster and more efficiently,” says Patrick Javick, vice president of retail apparel and general merchandise for the standards-setting group GS1 US. “The question now is: ‘How do I get my vendors on board?’” According to Javick, the number of suppliers tagging products with RFID has increased from approximately 200 to as many as 600, and these suppliers now want to know how they can get the extra benefits from the technology.

With suppliers jumping on the RFID bandwagon and more deployments looming in the horizon, the future of RFID remains promising. Being able to automatically capture data by simply passing tagged items through portals and readers—without opening or sorting through cartons—has improved efficiencies in the DC while increasing visibility throughout the chain. In the next few pages we dive deeper into other drivers that continue to push RFID adoption. 

Push towards source tagging
For years, it took a retailer’s mandate to trigger a supplier to move forward with RFID adoption. According to our experts, however, this is beginning to change as an increasing number of retail partners are looking at item level RFID tagging at the point of manufacture.

“The majority of EPC tagging efforts takes place in the DC where it is just not as cost effective,” says Javick. “The last 12 months has seen a significant increase in the number of brand owners (suppliers) in the apparel and general merchandise industry starting to move EPC-enabled RFID deployments back to the source—and industry leaders are expecting to see this trend continue.”
As suppliers start to deploy and tag products at the source of manufacture, the goal is for them to also enjoy the benefits with more accurate inbound and outbound audits in their own DCs as well as more efficient receiving and shipping processes. 

Managing assets
Increased asset management continues to be another leading reason for growing RFID adoption. In this application, passive and/or active tags are affixed to products, containers, equipment—and even people. 

Using handheld computers integrated with RFID readers, organizations can acquire, in real-time, proof of identification and monitor an asset’s location and its current status. Adding a Web-based solution allows users to transfer this information online so that upper managers and other interested third parties can also access the most up-to-date data and make timely decisions regarding these assets from any location in the world, as long as there is Internet access. 

For years, supply chains have been using RFID to track and manage returnable product containers, especially in closed loop systems. The same technology has also been applied to yard management and even warehouse workers on the floor. Depending on the asset, a wide range of unique specialty tags have been developed to solve specific business challenges.

This year, in support of its vision to improve healthcare efficiency, the Department of Veterans Affairs (VA) announced that it was funding $543 million in a project to establish real-time location systems (RTLS) at all 152 of its hospitals and seven outpatient pharmacies. This deployment would involve attaching millions of RFID tags to medical equipment, surgical instruments and supplies, further driving RFID adoption in the healthcare industry to unprecedented levels. 

This project would begin with simple asset management and the management of supplies in laboratories, but is slated to expand to tracking patients and controlling patient wandering. In RTLS, tags attached to objects or people emit wireless signals that determine an asset’s location usually within a building or other contained area.

Better tags and readers
Another big driver for RFID adoption is the continued improvement of all components of RFID technology. Kurt Mensch, principal product manager for RFID for Intermec, says that their new 70-series readers have become highly portable, mobile, and multi-modal—not only reading tags, but still able to scan barcodes and use voice technology for warehouse tasks. The mobility provider has also solved the issue of reading peripheral tags through software “so we can detect tags that are in motion and those that are stationary.” 

Reader throughput has also made significant strides. “In 2009 we were reading 5,000 items in an hour,” adds Javick, “Today we are capable of reading 20,000 items in an hour.” Longer read ranges and the ability to read labels on metals and liquids are other more notable developments. In fact, GS1 Italy just completed successful item-level pilots of consumer electronics involving the tagging of products with high metallic content (see sidebar on page 40).

The tags themselves also continue to improve. Some tag providers are manufacturing tags so thin that they can be placed within banknotes. Some are imbedding them into an item’s clothing care label and combining them with Electronic Article Surveillance (EAS) systems. “It’s not only an inventory control solution, but it’s also a security or loss prevention system attributed to RFID,” says VDC’s Liard.

With increased adoption, tag price points continue on their downward spiral, hovering between 10 cents to 15 cents depending on quantity, how elaborate you need them to be (graphics, print, card stock), and the amount of memory it needs to carry. “That’s much improved from 25 cents just three years ago,” says Javick.

He also adds that software systems related to RFID solutions are becoming more turnkey. “This allows for greater integration into the core legacy systems and these store systems are able to better manage the serialized data that comes with EPC reads.”

Product tracking and traceability
Another driver for RFID adoption has been the continued pressure from government agencies to protect America’s food supply by ensuring product traceability. Mike Maris, senior director for transportation, distribution, and logistics for Motorola Solutions, describes traceability as the ability to track the flow of each food item in its cold chain “from farm to fork.” Because it involves the
real-time recording of a considerable amount of information, traceability becomes a natural candidate for item-level RFID tagging. 

With traceability, product-related data—including proper storage and transport temperatures, manufacture dates, shelf life, expiration dates, lots, batch, and serial numbers—are stored directly on RFID tags that are attached either directly to the product or on pallets and returnable plastic containers. 

At each stage of the cold chain, product data can be recorded and updated wirelessly and automatically as products move through RFID portals from the farms through warehouses to stores. The information on the tags can also be used to quickly trace product back through the cold chain in the event of a recall.

With RFID, an electronic record of a product’s journey through the supply chain—or its pedigree—can be created and maintained to verify authenticity, combat counterfeiting, and ensure consumer safety. Liard reports how South Korea is currently tagging millions of units of pharmaceuticals at the item-level in response to government mandates and to stem the illicit trade of counterfeit drugs.

What’s holding RFID back?
Despite these drivers that are spurring adoption, many remain unsure about RFID technology. Education and awareness continues to be a big challenge. “Many executives believe that it’s still about tagging cases and pallets; it’s moved well beyond that,” says GS1’s Javick.

“They have not looked at it recently. GS1 US offers an educational program to brands and retailers as part of deployment support.” This program provides the training, tools, and community support to incorporate EPC item-level tagging into day-to-day operations.

Liard points to industry collaboration—such as those pilots spearheaded by the retail community—as what helps drive the market. “Retail came together as a community to share their learning,” adds Liard. “They demonstrated the business case and the return on investment. We don’t have that collaboration outside of retail quite yet, and that’s a big challenge. That’s what’s keeping us back.”

About the Author

Maida Napolitano
Maida Napolitano has worked as a Senior Engineer for various consulting companies specializing in supply chain, logistics, and physical distribution since 1990. She’s is the principal author for the following publications: Using Modeling to Solve Warehousing Problems (WERC); Making the Move to Cross Docking (WERC); The Time, Space & Cost Guide to Better Warehouse Design (Distribution Group); and Pick This! A Compendium of Piece-Pick Process Alternatives (WERC). She has worked for clients in the food, health care, retail, chemical, manufacturing and cosmetics industries, primarily in the field of facility layout and planning, simulation, ergonomics, and statistic analysis. She holds BS and MS degrees in Industrial Engineering from the University of the Philippines and the New Jersey Institute of Technology, respectively. She can be reached at [email protected]

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From the January 2018 Logistics Management Magazine Issue
Industry experts agree that costs across all sectors worldwide will continue to rise in 2018, and the most successful shippers will be those that are able to mitigate their impact on profitability. And, the right technology will play an increasingly vital role in driving efficiencies across the global logistics network.
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