Radio frequency identification (RFID) has long promised to improve warehouse visibility and inventory management. But high tag and system costs led many enterprises to hold off or use it sparingly, and integration challenges kept businesses from fully using the data RFID captured.
Advances in semiconductor manufacturing, printer-encoder technology, and software integration are now making RFID more practical for a wider range of warehouse operations.
As explored in our earlier article, RFID and Machine Vision Are Having a Moment in Automation, falling tag costs and improved data capabilities are also helping RFID deliver on its long-standing promise. The next question is what these developments mean for warehouse automation.
From item-level inventory visibility to automated shipment verification, several RFID trends are changing how warehouses capture information, manage costs, and use data to support daily operations.
RFID Basics for Warehouse Automation
RFID systems use tags or labels that store identification information, and fixed or handheld readers that capture that data through radio waves. Unlike traditional barcode scanning, RFID does not require a direct line of sight between a reader and a tag.
Today’s RFID labels often resemble shipping labels in that they can be printed and encoded; they include chips and antennas and can be affixed to pallets, cases, assets, or even individual items.
Two common types of RFID tags include:
- Passive RFID Tags: These tags are powered entirely by reader signals. They are highly cost-effective and have a shorter read range, which is typically sufficient for tracking inventory as it moves past fixed checkpoints.
- Active RFID Tags: Equipped with their own batteries, these tags deliver a much longer read range. They often carry a higher price point but are ideal for tracking high-value assets.
Readers are placed at dock doors, portals, or conveyors, or used by employees to capture items during cycle counts. Streams of data acquired from tags are filtered, formatted, and routed through middleware, with data then headed to the warehouse management system (WMS) or enterprise resource planning (ERP) systems. There, RFID reads can be matched to relevant orders or inventory records, with updates completed in real time.
RFID Trends That Are Shaping Warehouse Automation and Leading to Wider Adoption
The basic technology behind RFID works much as it did when it first hit the supply chain sector. However, lower tag costs, more reliable printing and encoding, and improved software integration are expanding where RFID can be deployed cost-effectively.
These developments are influencing how RFID is used in the modern warehouse, from the types of inventory worth tagging to the actions that can be triggered by captured data.
Cheaper RFID Tag Costs
Tag costs have dropped dramatically compared to two decades ago. Previously, passive tags cost up to 50 cents each, forcing warehouse leaders to think carefully about where and how those tags would be implemented.
Now, passive RFID tags are often available for between 5 and 10 cents, with even lower prices possible with high-volume purchases. Fewer labels are also damaged during printing and encoding, which means less waste.
Modern printer-encoders have become more reliable. Peak Technologies CRO Michael Wills, who worked on printer-encoder patents at Intermec, points to printers that apply heat and pressure around the inlay rather than on top of it.
On-demand printing and encoding also make RFID easier to incorporate into existing warehouse processes. RFID-enabled shipping labels can be printed and encoded during receiving, packing, or shipping, allowing warehouses to introduce the technology without completely replacing established labeling workflows.
Although readers, software integration, and deployment still contribute to total RFID system costs, cheaper tags change the economics of what is worth tracking. One of the most significant results is the growing potential for item-level visibility.
From Pallet and Case to Item-Level Visibility
As RFID tags and labels become more affordable, warehouses have more opportunities to extend tracking beyond pallets and cases to individual items. Although item-level tagging isn’t economically practical for every product, falling costs make it viable for a broader range of inventory.
This is increasingly useful as product variety expands and as SKU counts increase. Case-level information may confirm that a carton has arrived, but it doesn’t necessarily verify that the correct product variants or quantities are inside.
Item-level RFID can provide that additional layer of visibility. When integrated with inventory and order management systems, these reads can help flag discrepancies before they affect downstream operations. Reads can also confirm the right units were picked and packed, and speed returns processing by identifying returned items without opening every carton.
These capabilities are particularly valuable in warehouses managing high SKU volumes, complex orders, or products that require greater traceability.
RFID as an Operational Data Source, Not Just ID
As tag volumes increase, RFID delivers an even greater volume of warehouse data, feeding software with real-time details that can be used in more strategic ways. The value of that information, however, depends on how effectively it is connected to operational systems and workflows.
This was one of the challenges that held back earlier RFID projects. Businesses would collect large volumes of tag reads without having a clear way to turn them into useful information.
Today, warehouse automation strategies increasingly focus on turning those reads into events, alerts, and workflow triggers rather than simply collecting identification data.
Consider a common scenario: a trailer is about to leave the dock, but an expected pallet hasn’t been verified during loading. RFID readers positioned at the dock door can capture pallet movements, and, when configured to do so, help flag the missing verification before the trailer departs.
If the warehouse sees a pattern of improperly loaded trailers, data gathered through RFID can support efforts to determine where and how such oversights typically take place — during specific shifts, for example, or at specific dock doors.
Combined with AI in warehouse management and broader operational analytics, these insights can help teams identify recurring issues and determine where process improvements are needed.
Peak Analytics, for example, brings together data from dock doors, pallets, forklifts, and conveyor systems to show movement patterns, bottlenecks, and operational errors. Paired with RFID reads, that gives teams a fuller view of where problems occur.
RFID Plus Machine Vision for Identity and Condition
Machine vision complements RFID by providing visual information that tags cannot capture on their own. The technology uses cameras and image-processing technologies to capture barcodes and evaluate visible characteristics such as labeling, packaging condition, and pallet integrity.
By combining RFID with machine vision solutions, warehouses can leverage each technology’s respective advantages.
While RFID helps verify the identity and movement of tagged goods, machine vision adds visual verification. Together, these technologies provide a more complete picture of what arrived and whether it meets receiving requirements.
Peak Automation Intelligence applies machine vision and AI-powered data capture to warehouse workflows through solutions such as Dock Door Insights and Tunnel Insights.
Dock Door Insights captures pallet-level barcode and condition data at receiving and shipping points. Tunnel Insights captures package-level information on conveyors, helping identify potential damage, mislabels, and other shipment issues.
RFID as a Trigger for Warehouse Automation
RFID tells systems when items or pallets arrive at specified locations, and, while this is useful for cross-checking or record-keeping, it can also trigger automated warehouse workflows. When connected to warehouse management or execution systems, reads can initiate actions based on what is happening at different checkpoints, reducing the need for manual scanning and data entry.
A few examples of ways the technology can support automation include:
- Readers can verify when pallets reach dock doors, allowing the WMS to update inventory records and assign appropriate putaway tasks.
- As tagged items pass readers on a conveyor, their identities can be matched to routing instructions, allowing integrated systems to direct them towards their destination.
- In facilities using autonomous mobile robots (AMRs), RFID reads at designated handoff points can help verify that the correct goods have been transferred or that a task has been completed.
- In outbound flows, readers can capture pallets and cases as they move through shipping doors, allowing systems to compare those movements against expected shipment contents.
Instead of scan-by-scan updates, the WMS or WES gets a continuous record of movement.
A Lower Barrier to Entry
RFID implementation can feel intimidating when it involves facility-wide rollouts. This is not simply a matter of attaching tags, after all; successful deployment involves software updates, strategic reader positioning, worker training, and even testing for interference. All this can change workflows and may lead to warehouse disruptions.
However, warehouses don’t necessarily need to implement RFID across an entire facility to realize benefits. Another approach is to focus on high-need areas that, based on already identified pain points, would be well-served by RFID-guided visibility improvements. Through small, focused pilots, tags and readers can be implemented in high-impact zones and then put to the test. If metrics reveal improvements, broader adoption may be justified.
This modular approach to RFID deployment accompanies a shift towards phased warehouse automation, in which new technologies or capabilities are added in stages as business needs evolve.
Where RFID Fits in an Automated Warehouse
RFID supports many warehouse functions. Well-positioned tags and readers capture inventory movement at various checkpoints, providing the information warehouse systems need to update records, identify discrepancies, and trigger appropriate actions.
Several RFID warehouse automation applications include:
- Receiving. Fixed RFID readers automatically identify pallets as they enter warehouses. Deliveries are compared against orders to confirm that anticipated items have arrived in the quantities desired. If discrepancies are found, they can be automatically flagged and quickly resolved.
- Cycle counts. RFID readers can capture multiple tags without requiring employees to individually scan every barcode. In suitable environments, inventory counts that previously took days may be completed in hours. Properly implemented RFID systems can also support inventory accuracy levels of 98–99%, although results depend on the application, tagging strategy, and system performance.
- Outbound verification. Readers placed at checkpoints or shipping doors scan items and compare them to outbound orders. Missing or unexpected reads can trigger exceptions for employees to look into before shipments are finalized.
- Returnable asset tracking. RFID tracking is not limited to inventory for sale. Reusable assets (such as totes or containers) can be tagged and monitored as they move through facilities. RFID movement records help teams locate assets, reduce losses, and improve utilization.
- Traceability. Reads can create time-stamped records of inventory movement through monitored checkpoints. When integrated with warehouse software, these records can support product recalls, compliance documentation, and chargeback disputes.
Bringing RFID Into Your Warehouse Operations
RFID delivers the most value when it addresses a clearly defined business problem. Whether the goal is reducing inventory discrepancies, verifying outbound shipments, or improving asset visibility, successful implementation starts with understanding where RFID can make a measurable difference.
Peak Automation Intelligence combines automated data capture (machine vision and AI at the dock, pallet, and conveyor) with Peak Technologies’ RFID expertise, from discovery through system design. Together, they help teams identify what is moving, verify its condition, and act on the data.
Get in touch to discuss how RFID and complementary warehouse automation technologies could support your warehouse operations.