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RFID Brings Greater Efficiency, Product Visibility to Interstate Batteries

The latest phase of the company's RFID deployment involves two million batteries, 2,200 smart storage and display racks, and 29 delivery trucks.
By Claire Swedberg
Nov 12, 2014

Following several years of preliminary testing of radio frequency identification technology, mostly centered on proof of hardware, replacement automotive-battery supplier Interstate Batteries is in the middle of what it describes as a "validation phase" of an RFID pilot protect to evaluate a solution that it co-developed with Minnesota-based technology firm Seeonic. The project, which began in November 2013, involves the deployment of two million RFID-tagged batteries, 2,200 RFID-enabled storage racks, and 29 RFID-enabled trucks that deliver batteries to those stores. With the readers installed in stores and on vehicles, the company will know the product inventory at each dealership or store location, as well as what is in transit in the delivery trucks at any given time, and what has been sold and thus requires replenishment at a specific customer site.

Throughout the next year, Interstate—the largest U.S. supplier of automotive replacement batteries—will continue to study how it can best use the data coming from the test locations and vehicles, and will then determine the next step in the RFID deployment process. Bruce Hellen, Interstate Batteries' director of business practices, notes that a project of this magnitude and complexity must be accomplished in phases, beginning with technology verification and continuing through to ensuring that the collected data can be utilized in an effective manner. He reports that the technology testing has gone extremely well, and that the entire program is unfolding at a very aggressive pace.

Built into each IBSmartRack is a SightWare RFID reader connected to multiple antennas.
In 2012, Seeonic and Interstate tested the use of RFID at four stores in Minnesota's Twin Cities (see Battery Supplier Deploys RFID to Manage Product Inventory). The two companies then analyzed the test results. One of the main challenges with this project was that batteries are filled with lead and liquid, which combine to make an extremely difficult environment for reading RFID signals. Seeonic's patented Eye reader antenna (a 4.5- by 5.5-inch antenna designed to be low-cost) overcame these challenges, Hellen reports.

For the validation phase, Hellen says, the company is focusing on employing RFID in a larger, more complex environment than that of the first test, and is managing the resulting data. Flexo-Graphics attached Smartrac EPC Gen 2 passive ultrahigh-frequency (UHF) inlays to approximately two million of the labels it produces for Interstate Batteries, and encoded each inlay with a unique ID number, according to Harley Feldman, Seeonic's co-founder and chief marketing officer.

Interstate installed 2,200 of its IBSmartRacks, on which the tagged batteries are stored or displayed, at stores within five geographical regions. The IBSmartRacks, built by Display Source Alliance, were designed to unfold using hinged sides for ease of installation. The racks come in several sizes, each with Seeonic's array of multiple antennas installed within it, connected to a single co-developed SightWare RFID reader, made with a ThingMagic M6e reader module.

The SightWare reader, which runs on AC or DC battery power, awakens periodically to capture the IDs of tagged Interstate batteries and transmit that information to Seeonic's Seeniq cloud-based software, via a GSM or CDMA mobile connection. Although cellular connections are used in this case, Feldman notes that the SightWare reader supports a variety of communication media, including a serial port.

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