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RAIN RFID Speeds Up Season Cycles of Apparel Value Chain

Mar 27, 2017

中文版 Chinese version

I had the pleasure of attending a networking event of Americas Apparel Producers’ Network – AAPN a few weeks ago. The presentation topics and discussions ranged from lighter reminiscences of past gatherings to hard core statistics around today’s retail.

As a take-away I thought a grim view was painted of the main stream apparel value chain of brand owners and retailers. This traditional apparel retail value chain seems slow and rigid; and is definitely challenged by online sales and vertically integrated fast fashion companies.

Recently I’ve also heard presentations from a couple of vertically integrated retail chains – with focus on their RAIN RFID projects. Those stories painted a more positive view of the retail value chain.

Read on to see how these two opposite forecasts might merge.

Slow Moving and Heavy Inventory Make Department Stores Suffer

The key issue is summed up in a few bullet points:

  • Traditional value chain takes an average of 9 months to get from a product idea to sales.
  • Because of slow processes the chain must rely on heavy stocking of manufactured goods.
  • Because of large stocks, a large portion of products are still unsold when fashion changes. Items are sold with high average discounts.
  • Add the fixed cost of retail stores and problems arise.

Announced department store closures were provided as an evidence:

Online and Fast Fashion Thrives

On-line stores can sell with the same cost of goods sold and pricing structure, but with lower fixed costs. Bottom line is still positive. Fast fashion chains can maintain lower stock levels and follow fast trends more quickly. There is less need to high discounts and margins are enough to cover fixed costs. There is profit to invest.

Root Cause Is the Traditional Management Focus on Costs

An analysis is presented in Apparel News article.

  • In the traditional model the link between retailer and brand owner is broken.
  • Retailers focus on cost. It is the only item they can fully control and they fully understand. And apparel manufacturers must follow with cost focus. There are no resources to improve processes or focus on the yarn types and fabric qualities. It is hard to break this malicious cycle.

Information Sharing Should Become The New Focus

RAIN RFID is a technology that can create a vast amount of data, and turn that data into meaningful information. When this information is produced at the retailer and shared with brand owner, the value chain can be improved.

Decathlon case study by Tageos
Inditex presentation

There are plenty of case studies like the ones above. But let’s look some use cases beyond the case studies – how RAIN RFID can be used in shortening the cycle times.

Faster Everything Means More Efficient Everything

With RAIN RFID tagged store merchandise, replenishment needs at the shop floor are noticed in real time, and the information can be shared real time with warehouse, distribution and factory. When the rules are set, just rely on EDI and automation to keep the stores running. Every party in the supply chain knows how much stock there is at various upstream locations, and when is their time to react.

The key enabler is the accurate and real time inventory – the key deliverable of RAIN RFID. When the process works, the initial stock levels can be lower across the value chain, and there’s your Cost Saving right there.

Instant Feedback from Store to Design Accelerates Season Cycles

As the merchandise is RAIN tagged due to the efficiency reasons stated above, smart fitting rooms, info kiosks and store associates can be utilized to collect information about consumer preferences. Real-time pre-purchase information about models, sizes, and colors that are interesting to customers can be used to optimize store layouts, but especially valuable it is to the brand owners.

Such insight enables the designer to assume a new kind of ownership of the product. Minor fixes can even be implemented during a season. This real-time collaboration through the value chain rises the clock rate of traditional brick and mortar stores to match and exceed the vertically intergrated ones.

What Should Apparel Manufacturers Do?

Instead of following the lead of retailers, the brand owners should assume a more active role. Here’s a couple of pointers:

  • Learn the basics of RAIN RFID – consider a webinar, attend a 101 course or follow the RAIN Alliance.
  • Take a look at what your fellow competitors are doing: The Herman Kay case study by GS1 sets a great example, and here’s another story referencing lululemon and Adidas
  • Instead of being compliant, manufacturers should check that requirements take into account also manufacturers’ own needs – manufacturers should especially demand the requirements in a format that enables them to scale and optimize, such as the GS1 TIPP grades.

What Has Voyantic to Do with All of This?

Voyantic offers RAIN RFID testing solutions and systems. Our performance testing equipment enables anyone to implement RAIN RFID tagging according retailer’s and manufacturer’s requirements. Our solutions ensure quality monitoring across the whole tagging process. We are happy to provide more information of RFID – start from our webinars, for example!

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GS1 Releases the TIPP Global Guideline – Streamlines RAIN RFID Adoption in Retail and Fosters Tagging Innovations

Feb 01, 2017

中文版 Chinese version

After over 18 months of hard work, the TIPP work group under the GS1 Global Office has now released the Tagged Item Performance Protocol (TIPP) for global usage. The guideline focuses on readability of tagged items, supports all the global RAIN RFID frequencies, and also comes with additional supportive documentation to make the adoption process easier.

Many experts have invested a considerable amount of time in the creation of this guideline, and I am personally pleased with the outcome. The feedback that I’ve already collected leads me to believe that the standard lays out useful guidance also for RAIN RFID projects outside of the retail sector. Read on to learn what this standard means for the industry and end users.

TIPP Simplifies RAIN RFID Adoption for Retailers

The early adopters of RAIN RFID technology needed to cope with plenty of piloting, in-store testing and other iterative procedures to make the technology work out for them. A decade later, now in 2017, both the technology itself and the surrounding ecosystem have matured. Standards also emerge to make adoption of technology easier, faster and less expensive.

TIPP grades establish a common vocabulary and methodology for the RAIN RFID ecosystem. Original chart adopted from Impinj Inc., with modifications.

The end users define their specific tagging requirements as TIPP grades that are easy to communicate between stakeholders. Similar standard communication methods are already utilized in barcoding, EPC tag data standard and product attributes – standards boil down complicated technical issues into simple ones thus removing headaches and misunderstandings.

But wait a minute – some retailers rely on the approved inlay lists from the ARC Program, so what is the relevance of TIPP for them?

TIPP Scales – Removes Bottleneck of the ARC Program

The well-known ARC Program uses a sophisticated test system to gather and compile a database of RFID label performance characteristics. Combined with the end user specific requirements gathered during pre-pilot tests, the local experts then maintain certified inlay lists across retail item categories.

However, a limitation of the ARC Program is that the only official place to perform the tests for a newly developed inlay or retail item category is the one Auburn University test laboratory in Alabama, USA. There are only a limited number of experts available for pre-pilots, thus a bottleneck gradually developed.

As the number of deployments started rising across continents, the ecosystem simply needed methodology that scales. Now that the TIPP guideline establishes open grades and open test methodology, anyone can start performing TIPP tests locally and the bottleneck is removed.

Under the hood TIPP is about 95% the same as the ARC test setup. The main difference is how the test data is interpreted. In fact it should be acknowledged that the ARC Lab Director Justin Patton and Director of Technology Dr. Senthilkumar CP both gave significant contribution during the creation of TIPP US.

TIPP grading test system is essentially a similar 4 channel setup as the ARC test system.

TIPP grading test system

Building the Future for Smarter Packages

An aspect of TIPP is that it enables tagging solutions providers to innovate with new breeds of smart packages since they are no longer dictated to work only with inlay-based RAIN labeling. Moving away from diverse inlay lists also brings increased possibilities for suppliers to drive down the cost of tagging. In this perspective I don’t expect the cost of an inlay to drop as such, instead I am confident that management, stocking of labels and finishing processes around tagging will find new efficiencies.

Origins of TIPP Date Back to VICS and ILRI

For the folks out there that want to understand how TIPP came to existence, I’ve gathered a brief history piece in another document. If ILRI, VICS or ARC Arkansas rings any bells, you may want to give the History of TIPP document two minutes of your time.

In essence TIPP is rooted on

  1. the joined effort within the retail industry to increase the efficiency and transparency of supply chains
  2. the pain that RFID projects caused for the early adopters in the retail industry
  3. the learnings from prior technology implementations, such as barcodes
  4. the ongoing RAIN RFID deployment evolution from handheld scanners to zone sensor infrastructure.

Next Step: Guideline to Be Adopted by Retailers

As the TIPP guideline was developed for the retail community by the request of the retail community, I next look forward to the retailers and their suppliers to start adopting this global guideline. To make the transition smoother this time around, the guideline comes with supportive documentation both for the retailers and solution providers.

The GS1 TIPP website offers new fantastic documentation for both techies and non-techies.

Needless to say, if there are any obstacles on the way, both the GS1 Member Organizations and technology vendors are glad and available to assist. A new test protocol for dense stacks will be added to the standard in Q2/2017 together with new grades – mighty good news for anyone in the sporting goods business!

Over time we all should learn more about the benefits that the standard offers. When it comes to simplifying RFID vendor compliance management, my recent blog post already discussed that side of the story.

Methodology Likely to Find Ground Also Outside of Retail

I’ve had the privilege to explain and justify TIPP for various stakeholders over the recent couple of years. Received feedback suggests that the end user segments outside of retail consider TIPP as a benchmark of how to express tagging requirements in a scalable way. One hurdle for those folks in various businesses will be to find and motivate an un-biased association to efficiently nurture the standard creation – same as VILRI and later GS1 did for retail.

Any comments or concerns? Please let me hear it!

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TIPP Offers Both Low-Hanging Fruits and Long-Term Efficiencies for Everyone in the Retail Supply Chain

Dec 13, 2016

中文版 Chinese version

In the name of vendor compliance, many suppliers and brand owners are facing new RAIN RFID product tagging requirements from their retailer customers. The new TIPP standard harmonizes these requirements, bringing transparency and new cost efficiencies within grasp of all parties. Continue reading to catch some more good news coming your way!

RAIN RFID Adoption Challenge #1: Managing a Multi-Party Technology Project

I am sure you have all been there: a room full of people and a couple over remote connection, and someone with opening words – “Good Morning Everyone. We now have this new vendor requirement we need to satisfy. It concerns most of you and some of our partners, too.”.

What happens then is roughly a factor of project management, technology maturity, number of involved parties, communication skills and team endurance.

Adoption Challenge #2: Balancing the Short-Term Goals and Long-Term Efficiencies

You may have noted that when a deadline approaches, the time perspective also shortens. It’s only human nature that this leads to decisions that seem simple and make sense in the short-term, but which lead to excess expenditure and even re-engineering projects in the long-term. It’s a twisted set of requirements that is difficult to put in balance.

When it comes to an RFID implementation, I would personally list the signs of short-sighted decisions to include usage of inlay lists, selecting the cheapest label supplier, and utilizing of proprietary numbering systems.

Transition from an IT Project to a Compliance Process is Easier if Implementation is Based on Standards

During the roll-out phase, an RFID project definitely involves the folks over at the IT department. There are new streams of information flowing between companies, and also bits going back and forth in the new RAIN reader infrastructure within the company itself.

However, as all that is successfully solved and implemented, the IT maestros turn their focus back on geek black magic, Linux and Dr. Pepper. The whole thing basically turns into a compliance and quality management process that runs 24/7 and is managed by different people: Vendor Compliance Manager, Quality Manager, or similar. It is at that time when standards, defined maintenance routines and ISO 9001 quality systems show their power.

Take the Simple Route and Base Tagging Requirements on TIPP

Tagged Item Performance Protocol (TIPP) is a global standard developed by the spearhead retailers, their suppliers and the RFID technology community. TIPP utilizes a grading approach that enables anyone to define varying tagging requirements for different product categories.

I’d actually like to point out the TIPP analogy to hangers, where the “Voluntary Guidelines for Hanger Specifications for Floor-Ready Merchandise” by GS1 states that “Hanger performance is the key metric, not the material.” The very same applies to RFID, where the readability of tagged items is the key, not the logo on the RFID inlays.

TIPP grades enable retailers to efficiently determine tagging requirements based on their own read scenarios without sharing any sensitive information unnecessarily with outsiders. Naturally it’s ok to turn to trusted solution providers that can perform the necessary tests and determine which TIPP grades to utilize in different product categories.

Paving the Way to Long-Term Process Efficiencies

TIPP grading enables the suppliers and brand owners to work with their partners and solution providers to find cost-effective tagging solutions that both meet the vendor compliance requirements, aka TIPP grades, and their own process preferences. This way the decision making on label purchases is distributed to where costs and supply chain efficiency can be best managed.

Wait, there is more: TIPP practically removes the in-store validation tests that are now essential to the maintenance of retailer specific inlay lists! In-store testing of labels is a significant operational burden and expense, which was indeed quite necessary at the early days of RFID adoption in retail. Now that the technology has matured, it’s time to reassign all performance and validation testing to parties that efficiently perform it as part of their daily routines.

Lean on the Technology Providers

Today there are numerous technology providers close by you that can assist you in meeting your RFID retail mandates and requirements. To find solution providers try these search engines:

It goes without saying that you ought to be a demanding customer for all these folks out there – don’t accept the first proposal without hearing more about the alternatives. Always demand a standard solution without vendor-lock and have the short- and long-term implications spelled out.

Yes, We Can (in January)

The original TIPP guideline came out in the USA in 2015. The guideline already introduced the performance grades approach, but was limited to the FCC frequency band. To create a global version that also covers the ETSI, Chinese and various other bands, the GS1 Global set up a workgroup in summer of 2015. I have been co-chairing the workgroup for about a year now together with Plamen Iliev of Embisphere.

January is going to be exciting in many ways. I am delighted to point out that a global TIPP standard is already ratified and will be officially released by the GS1 in January 2017. Please contact us if you want to discuss these issues in more detail, and see you at the NRF in New York!

RFID tagged men’s shirts in a department store in Helsinki, Finland. I simply wanted to add this picture here in the end because it’s just such a beautiful sight.
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RAIN RFID, UHF RFID, EPC RFID, … – Confused by the Different Names?

Aug 11, 2016

中文版 Chinese version

I am frequently lecturing to RFID users and technology providers about quality and performance in RFID. Every now and then a question about the terminology comes up. RFID technology has developed through several paths and as a result there are a lot of names and definitions for RFID. A beloved child has many names, says a Finnish proverb. Understanding the different points of view in naming and the origins of the terminology help to understand the many names.

RFID and Frequency

RFID – Radio Frequency IDentification – is the umbrella term covering a wide variety of technologies: frequencies, communication protocols, and device types. One common way to refer to the different technologies is with the names of the frequency bands:

  • LF RFID (Low Frequency RFID)
    125 kHz – 134.2 kHz, 125 kHz RFID, 134 kHz RFID
  • HF RFID (High Frequency RFID)
    13.553 MHz – 13.567 MHz, 13.56 MHz RFID
  • UHF RFID (Ultra High Frequency RFID)
    433 MHz: 433 MHz RFID
    858 MHz – 960 MHz: UHF RFID *)
  • Microwave RFID
    2.4 GHz – 2.454 GHz: 2.4 GHz RFID
    5.725 GHz – 5.875 GHz: 5.8 GHz RFID

*) Includes local bands ETSI RFID (865 MHz – 868 MHz) and FCC RFID or 915 MHz RFID (902 MHz -928 MHz)

Passive and Active RFID

Different RFID technologies feature different ways to power up the tags and to communicate between the reader and the tag. The base technology is used as one way to classify RFID:

  • Passive RFID: technology where the tag powers up from the radio frequency energy sent by the reader, and communicates back by modulating the reader signal
  • Battery assisted passive RFID, BAP RFID, Semi-passive RFID: technology where the tag gets its operating power from a battery but communicates back by modulating the reader signal
  • Active RFID: technology where the RFID tag is powered from a battery and communicates by active transmission
  • RFID sensor, sensor tag: a sensor (temperature, pressure, humidity – or anything else) is integrated into the RFID tag – can be passive, active or BAP
  • Chipless RFID: tags without a silicon microchip based on time-domain reflectometry or frequency signature techniques are called chipless RFID tags.

RFID Names from Standards

Another approach for RFID naming comes from the radio transmission protocols. They are described in radio protocol standards, and are often referred to by the standard names: ISO 15693, ISO 14443-A, ISO 14443-B, ISO 18000-62, ISO 18000-63, GB T/29768

The alphanumeric standard names are not that good for marketing use, so many of the standards are more widely known by commercial brand names, such as

  • Mifare: NXP’s trademark for 13.56 MHz, ISO 14443-A
  • FeliCa: Sony’s trademark for 13.56 MHz, JIS X 6319-4
  • EPC RFID: Electronic Product Code, GS1’s standard family for data content in RFID, standard family includes also protocol standards and frequency standards – also standardized as ISO 18000-63 (formerly ISO 18000-6C)
  • SINIAV: (Sistema de Identificação Automática de Veículos) Brasilian department of transportation’s system for identifying cars. The system includes also RFID protocol standard at UHF RFID frequency

Many of the standards have also been published by various organizations with no or with small adjustments. For example, it is common that a standard is published as a national standard (JIS, DIN,…) , or industry specific standard (IEC for example) and afterwards as a global ISO standard.

Marketing Names and Industry Organizations Aiming for Clarification

In order to fully describe a specific technology, several of the above names can (and sometimes must) be used together. For example: Passive 13.56MHz sensor tag with ISO 15693 protocol. Also several names are interrelated – for example ISO14443-A is in practice always also 13.56 MHz (HF RFID), and passive.

Using these technology derived names and standard names for describing the technology can be complicated, confusing, and in many cases drives the focus to the wrong direction. Industry organizations have recognized this problem and they have launched marketing names for most common technology combinations. Their focus is on the use cases instead of technical details and their goal is that these names would become the everyday names for RFID technologies – just like e.g. Bluetooth has become a common name for radio communication between electronics devices using 2.4 GHz frequency and ISO 802.15 standard protocol.

  • NFC: Near Field Communication is a term/brand by an industry organization (link: http://nfc-forum.org/ text: NFC Forum popup:yes). The term describes a main stream combination of HF RFID technologies, and is used extensively in e.g. smart phones. The technology uses 13.56 MHz frequency and several protocols, such as ISO14443A, ISO14443B, and FeliCa (Japan Standard JIS X 6319-4).

  • RAIN RFID: RAIN RFID is a name coined by the RAIN RFID Alliance – a global cooperation organization of companies offering or utilizing passive UHF RFID. The RAIN RFID covers RFID technologies using frequencies from 860 MHz to 960 MHz and the EPC RFID Gen2 protocol, also known as ISO 18000-63 air interface, regardless of the used numbering system.

Which Names Should Be Used?

I am not ready to trash any of the current terminology. However, I have my own preferences.
I prefer the NFC and RAIN RFID terms in case studies and similar documents aimed for a wider audience when not focusing on nitty-gritty technical details but describing benefits of the technology.

When the focus is on certain technical viewpoints: protocol, frequency, technology type etc., I prefer the narrow technical terms. “Computer accessory for reading battery assisted UHF RFID EPC temperature sensor tags” sounds horrible, but actually describes quite well the technology solutions used. For a consumer the monster-term is not as easy as having a RAIN RFID enabled laptop.

Voyantic is a quality and performance test system provider for the RFID industry. The test systems can be used for testing tags and readers at UHF and HF RFID frequencies – or if you prefer – within RAIN RFID and NFC.

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RFID Triumph at Macy’s: More Sales with Higher Margins – GS1 Connect 2016 Recap

Jun 07, 2016

中文版 Chinese version

It was my third time to attend the GS1 Connect event; this time in Washington, DC from May 31st through June 3rd. The event was loaded with an impressive conference menu and a larger exhibition area than in the Austin event last year, although with less exhibiting companies than previously. RFID was well presented – read on to see what I am taking home from that perspective.

Utopia Comes with Transparency and Traceability that Protects Both Business and Consumers

Standardsville is a picturesque city where everything is clean, convenient, traceable and safe. Business blooms because information and goods flow without obstacles, and The Consumer is protected from harm. Actually I thought GS1 had done a really nice job on creating this Standardsville utopia as the theme of the event.

Standardsville comes with plenty of convenience and color. Picture Copyright GS1 2016.

In his keynote speech Mr. Bob Carpenter, the President and CEO of GS1 US, highlighted RFID as one of the transformational technologies that is currently reshaping retail. In a conference session the same message came through the presentation of Dr. Bill Hardgrave of Auburn University. Dr. Hardgrave listed the “Big Four” Foundational Use Cases of RFID together with the additional current driver: the omni-channel retail.

Retail use cases of RFID according to Dr. Bill Hardgrave, University of Auburn

For the most effective RFID execution Dr. Hardgrave again gave the ultimate guidance: “Move to 0HIO“.

RFID Is a Strategic Enabler for Macy’s

In the Macy’s HTDBW session Mr. Bill Connell, Senior VP of Logistics at Macy’s, explained the reasons why Macy’s is so committed to RFID – sales uplift is naturally the ultimate reward, but all the other benefits of accurate inventory also add enormous efficiencies to store operations. The consumer sees all this as improved shopping experience, whether she is online or in-store.

Supplier Source Tagging Is Happening Already

Mr. Connell also made it clear that supplier source tagging is the only way to do this right so that benefits are spread thorough the supply chain. Today tagging coverage among Macy’s suppliers is 56%, and Mr. Connell expressed his wish that the rest would start tagging tomorrow.

In a separate session Rich Haig, the CIO of Herman Kay, one of Macy’s suppliers, presented their experiences around RFID. The added visibility that RFID has brought to their own processes has dramatically affected shipping routines and raised accuracy to a whole new level. All this has made Herman Kay a better supplier for all their customers.

Many Retailers Put Emphasis on Product Attributes and Rich Content

As omni-channel retail marches forward, it seems that most retailers have their focus on getting the content right on their webstores. As an example, Walmart is focused on getting every single item online, including those that they are not currently even selling! As an engineer I am struggling to follow this logic, but I suppose that’s just me.

I understand rich content and romancing the product is essential to fight the online competition. However, behind the curtains many are following what the spearhead retailers are doing around RFID. For the latecomers implementing RFID is going to be a smoother ride because supplier source tagging is already happening, standards are emerging to make communication easier between stakeholders, and successful tagging solutions have become a common knowledge in many product categories.

TIPP Is Like the Air We Breathe

So, why are the retailers not implementing the Tagged Item Performance Protocol (TIPP) that was just recently developed for them? I’ve learned this actually is just an illusion. The way professional RFID tagging in retail is done today is solely based in TIPP-like methodology – some just call them ARC tests and others Voyantic tests. Common factors include tags applied on products/materials, organized to in-store like product stacks and then tested over a wide frequency band and across rotation angles.

TIPP grades will take their place as a communications method as tagging spreads to new product categories and new retailers. This is already happening, and I am sure the TIPP methodology will be discussed more at the GS1 Connect 2017.

GS1 Connect 2017 Taking Place in Las Vegas

As business moves forward the next GS1 Connect will be held in Las Vegas. Unfortunately the event is moved forward by a couple of weeks to 19th-22nd June, which will be right on top of the Finnish Midsummer’s Eve – the magical nightless night. Considering the night in Las Vegas may well be somewhat similar, I will be faced with a difficult decision between bonfires and casinos.

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Passive RFID Sensors and Tags with a 100m Read Range A Geeks Report from RFID Journal Live! 2016

May 20, 2016

中文版 Chinese version

Two weeks ago was again the time of year when the RFID industry met at RFID Journal Live! in Orlando, Florida. The show is one of the main events of the year for Voyantic as well. But what were the hot topics this year?

As always, several new products were presented at the show. A significant trend for the last few years has been UHF RFID finding its way into mobile phones, first as add-on modules, but now also integrated into the phones. Another new product category was inventory robots that were seen roaming the aisles of the show. Mikel Choperena of Farsens writes about these trends in more detail in his trade show review.

Industry-wise, the airlines seem to be currently on the up in RFID adoption. Delta was one of the keynote speakers of the conference, and several companies were presenting SAE AS5678 certified tags meant to be used in airplanes. But other industries, such as manufacturing, healthcare RFID, and retail were also well represented.

Passive Sensors Steal the Spotlight

After last year’s show, I wrote that one of the hot topics was (link: http://voyantic.com/blog/posts/is-now-the-time-for-passive-rfid-sensing text: passive RFID sensing popup:yes), and noted that sensing occupied four of the ten Best New Product nominations.

It looks like sensing picked up where it left off last year.

This year’s award was shared between two innovative sensing products:

  • The first winner was SMARTRAC Technologies, for its Sensor Tadpole, a passive UHF sensor that can detect the presence of moisture. The sensor tag has been used by automobile manufacturers for ensuring that the cars leave the factory watertight.
  • The other winner was Phase IV Engineering for its RFID Sensor Reader, which is designed to collect accurate data from passive RFID sensor tags. Think of it as the missing piece that links passive RFID sensors to industrials PLCs, converting sensor readings from a tag’s memory to industry standard voltage or current levels. Keep your eye on this company!

Bubbling Under in the Academic Scene

RFID Journal Live! was co-located with several smaller conferences, one of them the IEEE International Conference on RFID, “the premier conference for exchanging all technical research in RFID”. My colleagues were kind enough to relieve me from booth duty, so I had a chance to attend the conference, and spend some time with my fellow geeks.

This year was the 10th occurrence of IEEE RFID, and I can proudly say that I have participated in pretty much all of them in some role: in the Technical Program Committee, as a session chair, or as an invited speaker. The conference covers different aspects of RFID research; this year the largest amount of presentations fell under the categories of

  • antennas & propagation
  • circuits
  • devices & readers
  • protocols & security and
  • energy harvesting & wireless power.

For me, the most interesting talk was given by Dr. Greg Durgin of Georgia Tech. He received the best paper award for his paper titled “RF Thermoelectric Generation for Passive RFID”. The paper proposes a new way to power passive tags based on thermoelectric generation instead of traditional diode rectification. To put it in perspective, Alien Technology presented their new Higgs-EC tag IC at the show, reported to have best in class read sensitivity of -22.5 dBm with a dipole antenna. Dr. Durgin’s proposal could bring sensitivity down to -34 dBm, allowing read ranges of up to 100 m.

Think about all the applications that a passive 100 m read range could allow.

RFID has definitely not seen its limits yet!

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RFID, Love or Die

Apr 21, 2016

Dear reader, my name is Lluis Bueno, and I love RFID. Do you? I belong to the Spanish company NextPoints, and in my work I have met hundreds of professionals and companies working in the RFID market without any passion for the technology… and most of them are not working in the RFID market anymore. So, why is love required for RFID business to survive? Let me share a few real stories with you.

Without any doubt, RFID is living its best moment: Internet of Things is more real than ever, RAIN RFID Alliance has more than 100 members, GS1 released TIPP guidelines for RFID tagging in retail, RFID inlays reached the lowest price ever without losing any quality… but perhaps, even with this friendly environment, the RFID company you created or joined some time ago is not alive anymore.

What was the reason for failure then? All of them had something in common: their lack of love towards the technology. Focusing on the product is of course important, but prioritizing price and forgetting collaboration with other players did kill them.

RFID is not just one more technology, it still needs your support to develop the market, and you need the market to be developed to make business.

RFID has its professional tools and methods of doing measurements, and this is something many of the professionals in the market are not aware of. There are only two ways to work with RFID: the right way or the wrong one, and there is no midway. Fortunately, I met Voyantic years ago and they showed the right way to me. Doesn’t it sound like some kind of religion? That was exactly what I felt the first time I met Mr. Juho Partanen: I had always thought I was doing things, if not the best way, then good enough for my RFID business. But I was doing wrong until he opened my eyes and he led me on the right track.

Most of the RFID companies ─ large end users, system integrators and even manufacturers of RFID readers or tags ─ are still using the same methods for testing their products and solutions which they used 5 years ago: conventional readers instead of professional testing systems, trial and error instead of real measurements, empirical reading distance instead of other key measured parameters. They think they are getting enough information from those old methods to understand how RFID works, but they really have no idea of what is happening. Why are they not taking their own business seriously? Is lack of budget the reason? No. Lack of love towards RFID is.

Most of the RFID companies think that purchasing RFID products at the best price will turn their company into a successful one. Forget it! Price just helps. Qualified partners, not only products but business providers, RFID alliances involvement, real RFID measurement tools…. You are missing much more aspects than just price. Are you aware of the changes in RFID ETSI frequencies, TIPP guidelines, RAIN RFID Alliance…? Information, commitment, involvement… definitely, love. Love is missing all along the supply chain, so we need to spread love since the beginning.

Please, you have chosen RFID as a driver technology for your projects, products and solutions. Love it and it will love you back with everlasting business. Take it seriously, or partner with companies who take it seriously for you, but do not ignore RFID and treat it as any other technology or it will die and make your business pass away.

In my work I have heard dozens of questions of RFID – why is it not performing as expected? What should be done differently to make my RFID business bloom? Download the “Questions of RFID – Loving Wisdom” document below to read the commonly asked questions with my answers.

Download Lluis Bueno’s RFID Q&A!

Download Lluis Bueno’s loving wisdom for frequently asked questions of RFID. You’ll find answers to many baffling RFID questions regarding tag and reader selection, system setups, link margins, and troubleshooting.
For your convenience, many of the answers come with pictures, too!

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Leadership in the RFID Era

Mar 02, 2016

中文版 Chinese version

So you want to be a successful leader in the RFID industry. Well, many leadership principles that are widely accepted in the high tech space will apply to RFID as well. But there are some concepts that are specific in the RFID industry. Here is a short glossary of buzz words for leadership in the RFID era.

1. Factory programming: The most important decisions that you will make are related to who you hire. A good rule of thumb is to hire people that are smarter than you. But I would put even more emphasis on how well the new team member fits the company culture. After all, new skills can be taught but changing someone’s factory programming is a lot harder. A good way to find out who to hire is to let the other team members interview the candidate before making the final decision.

2. Downlink: Ignorance is bliss? Maybe. But if you share information with your team on a need-to-know basis, how do you expect them to come up with new ideas? The better they understand the higher level goals of the company, the better they are able to help you reach them. I guarantee that the time spent explaining “why” will be returned ten-fold in commitment and creativity.

3. Listen before talk (LBT): What do you do when you are making a business decision that potentially has a big impact on the future of the company? Remember that you already have people smarter than you working for you. Why not listen what they have to say? Make them a part of the decision making process. Of course, the final decision is your responsibility but your team will be more committed to the decision if they have had their say. And I guarantee that the decision will be better.

4. Anti-collision: Every successful organization has people that don’t think alike, and that will cause some friction from time to time. But as long as all team members are acting in the best interest of the company, a healthy amount of conflict fosters growth. After all, if everyone is in complete harmony, some opportunities and ideas will be missed. So hold back with your anti-collision procedures, and resist your natural urges to act as a referee in every disagreement.

5. Error correction: The only way to avoid mistakes is not to do anything. And I believe in a corporate culture where people do not need to be afraid of making mistakes. Sometimes the mistakes may be visible to the customers as well: Maybe the new software release has a bug that was not caught in quality assurance, or maybe an item is accidentally left out of a delivery. The most important thing is to decisively make it right for the customer. The overall customer experience can still be positive if error correction is quick and professional.

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What Gen2v2 Security Offers for RAIN RFID Applications

Feb 12, 2016

中文版 Chinese version

In October 2013, the management board of GS1 ratified text: EPC Gen2v2. These new features ease the adoption of RFID especially in application areas where the tag carries more information than only its identification. Let’s have a more detailed look at one new key feature of Gen2v2: authentication.

What Does Authentication Mean?

So first of all, what is authentication? A quick Google search resulted with the following definition:

Authentication is the process of determining whether someone or something is, in fact, who or what it is declared to be.

In the RAIN RFID (UHF RFID) context, that something can be either a tag or a reader. In tag authentication, a reader asks a tag to encrypt a message using its stored secret key. If the reader is able to decrypt the tag response, the tag is genuine. This approach can be used to detect counterfeit tags, and as a result counterfeit items. Similarly, in reader authentication, access to a tag is limited to authentic readers. This approach can be used for example in electronic payment solutions. Ken Traub of Ken Traub Consulting wrote a very down-to-earth post about this topic.

Test setup for automatic vehicle identification

RAIN RFID tags that implement cryptographic security are expected to be more expensive than the simplest retail labels. As a result, they will only be used in application areas where authentication gives a significant advantage. Such fields include at least

  • Electronic road tolling
  • Vehicle registration
  • Access control
  • Asset tracking and brand protection
  • Parking and vehicle authentication

The First Secure Tags and Readers Already Available

In Spring 2015, NXP released the first Gen2v2 tag IC that provides cryptographic authentication, the UCODE DNA. Several tag manufacturers are already providing tags with this IC. On the reader side, upgrading to Gen2v2 requires a firmware update, and at least Nordic ID already has added Gen2v2 support to their readers. So, the technology is available and there seem to be several ongoing pilots that use Gen2v2.

Different Crypto Suites

Gen2v2 is not concerned with which authentication method is used. Instead, the different crypto suites are defined under the ISO/IEC 29167 standard family. For example, NXP UCODE DNA uses the AES (Advanced Encryption Standard, ISO/IEC 29167-10) crypto suite. Some crypto suites may be optimized for low power consumption and quick authentication, whereas others may provide more secure authentication. As new Gen2v2 tags appear to the market, we will most likely also see different approaches to authentication.

What Does Security Mean for RFID Testing?

Since Gen2v2 is backwards compatible with Gen2, all Gen2 test methods apply just as well to tags supporting the new standard. The most widely used performance test method for characterizing a tag is measuring its sensitivity as a function of frequency. This reveals both the tuning of the tag as well as the operating range that can be acquired. Typically, the same amount of power is required to identify a tag and to read its memory contents. However, writing to the tag usually takes more power, thus yielding to a shorter write range.

Voyantic Tagformance Pro RFID measurement system

The Gen2v2 security functions introduce a new sensitivity level. The tag’s crypto engine that is required for the authentication may need more power than simply identifying the tag. The figure below shows the sensitivity of a Smartrac Dogbone with the NXP UCODE DNA IC. As the figure shows, authentication needs more power than just identifying a tag, however the difference is only 1 to 2 dB whereas writing the tag memory requires significantly more power.

Sensitivity of a Smatrac Dogbone with NXP UCODE DNA IC

My company Voyantic delivers test and measurement systems for companies that either develop or use Gen2v2 tags. The Voyantic systems enable companies to reach excellence in tag design and to find the most suitable tag for each application.

If you are interested to learn more, please contact us and let’s talk more!

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RFID Companies Should Stand United to Defend the RFID ETSI Frequencies – We Are Not Out of the Woods Yet

Jan 27, 2016

Listen up now Alien, Avery Dennison, GE, Honeywell, Intel, Impinj, NXP, Metro, Smartrac, SML, SATO, Tesco, and Zebra. You have a world of hurt coming in – the ETSI UHF RFID band might get cannibalized, and you cannot afford it. We are facing a serious situation where other technologies may cripple the already narrow RFID ETSI band. Read on to learn more about what you should do to defend your business.

AIM and RAIN are alert already, but more industry collaboration is needed to defend the ETSI RFID frequency band from other interested parties

RFID Is a Niche Technology Compared with WiFi

WiFi, NFC, and Bluetooth are all great technologies, with trustworthy standards and powerful industry alliances behind them. UHF RFID is a hobby in comparison. How many people on the planet have ever heard about RFID, or of the RAIN Alliance for that matter?

European RFID companies and potential end-users already lost one fight a long time ago. Just compare the ETSI 865 to 868 MHz band to the FCC 902-928 MHz ISM band. Some difference there – how many channels was that? Luckily we Europeans got away with 2 Watts ERP anyhow.

WiFi Stretching Down to Sub-gigahertz Area

Next up: the ETSI RFID band may be crippled by other technologies, at least if we ask the WiFi consortium. The WiFi consortium with its 600 member companies is completing its mission, doing the dance and WiFi HaLow is being lobbied for a sub-gigahertz band to operate in, potentially on top of ETSI RFID. To make the situation even more alarming, RFID companies are not presented well enough in the ETSI workgroups where the hard work is done. This is where industry collaboration would make a difference.

LBT Would Downgrade the Position of RFID

A simple resolution of sharing the band is to put Listen Before Talk (LBT) in place and use RFID only if there is an available channel. Well then, how would that modified sales pitch is going to sound like to your customers who are concerned about the RF reliability and availability? Do note there are only four ETSI RFID reader channels available!

“Yes, well, basically, there is no problem.”

In the worst case, the IoT of non-powered devices would be postponed in Europe by a few decades. All the previous pain related to Round Rock and the Japan 950 MHz band change are peanuts compared with this. The EU business covers a 30% share of the global RFID market – this would hurt us all bad. We may all be destined to walk the niche path unless we act and stand united.

RFID companies and associations cannot afford to bury their head in the sand when it comes to standardization

The New 915-921 MHz Band Is Needed and Proposed, but Not Approved Yet

The good news is that the new band 915-921 MHz in Europe may be opening up for RFID in the future. The proposal was already made in 2012 ETSI TR 102 649-2 V1.3.1 with an update ETSI EN 302 208-2 V2.1.1 in 2015. This is absolutely a positive issue with the work item REN/ERM-TG34-264 now in the “Final Draft for Approval” phase. How are You currently supporting this noble mission?

Get Proactive in Defending Your Business

AIM is alert already, and we have smart people engaged in this work. Still, more support is needed: join ETSI, join RAIN Alliance, support AIM, support GS1, and do assign your brightest to work on the ETSI ERM TG34. We are not out of the woods yet. Spare no Dollar, Euro, Yen, nor Yuan – Sharing the 866 MHz RFID band is not a concern of Europe alone; it could impact the global RFID business severely!

Do also make sure your representative is in the right room when it’s time to vote.

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