RFID FAQs
Answers to Your Frequently Asked Questions
The evolution of Radio Frequency Identification (RFID) technology has been transformative, simplifying once labor-intensive and costly tasks. Over the years, RFID has become better, faster, and more affordable, making it accessible for various applications across different industries. Integrating RFID into your operations will maximize efficiency, save money, and leverage cutting-edge technology.
Our team of experts provides answers to your most frequently asked questions to help you understand how RFID innovations can enhance productivity.
(Click on a question to view the detailed answer.)
- What is RFID?
- How does RFID work?
- What’s the difference between active and passive RFID tags?
- How does RFID technology speed up inventory counts?
- Many companies boast about the read range of their RFID systems. In reality, how much range can you get?
- Can RFID be integrated and combined with other technologies?
- How does RFID data improve the data in ERP systems?
- Is there a system for RFID tool tracking that goes beyond the walls of my workplace and functions outdoors?
- Which RFID solution is the best fit for my business application?
- Are you performing item-specific (specific part or serial numbers) asset tracking throughout a product lifecycle?
- Are you tracking valuable tools and assets indoors, in a hospital or healthcare facility, or across a warehouse floor?
- Are you tracking parts, products, tools, and equipment between buildings, across several floors of buildings, between parking lots, and across acreage?
- How is RFID used in Department of Defense standards for military marking for shipment and storage (MIL-STD-129R)?
- How can RFID improve inventory management in retail?
- How does RFID improve supply chain management?
- Can RFID be used for security and access control?
- How does RFID contribute to smart manufacturing?
- How does RFID technology integrate with the Internet of Things (IoT)?
- What are the environmental factors affecting RFID performance?
- Can an RFID reader read multiple passive RFID tags at once?
- Can I use passive RFID tags as locator beacons?
- How does RFID technology contribute to sustainable practices?
- What are the differences between RFID and BLE (Bluetooth Low Energy) for asset tracking?
- How do I start implementing an asset tracking program?
- How do I know that the best RFID solution for my business application will perform properly in my workplace?
Q. What is RFID?
A. RFID belongs to a group of Automatic Identification & Data Collection (AIDC) technologies that help computers identify objects. The goal of AIDC is to reduce human errors and increase efficiency—Employees are free to perform more valuable duties than manually entering data into a computer.
RFID tags and barcode labels are both AIDC technologies. However, unlike standard barcode labels, RFID tags don’t rely on a line-of-sight visual scan for transmitting data and don’t require a scanner to “see” a barcode to read it. Instead, an RFID tag acts as a transponder, sending data by radio waves to a reader. The reader then converts the radio waves into digital information that can be viewed, analyzed, and stored on a computer.
Q. How does RFID work?
A. There are just two components to a passive RFID system, consisting of the tag and the reader. The tag contains an integrated circuit with embedded data along with an antenna that transmits and receives signals. The reader features a transceiver, or interrogator, that transmits an encoded signal that activates the tag. The tag then converts the received radio signal into usable power to respond back to the reader. In this way, the RFID reader functions as a two-way radio transmitter-receiver.
Q. What’s the difference between active and passive RFID tags?
A. When RFID tags are placed on assets, they allow you to find a “needle in a haystack”. RFID tags streamline the process of locating assets, especially those that are frequently misplaced or hard to find.
Passive RFID:
Passive RFID tags do not have their transmitter. They modulate (or change) the electromagnetic energy transmitted by RFID readers, these very sensitive readers “see” the modulation in their antenna field and interpret the pulses created by the tag. This makes passive RFID tags cost-effective and maintenance-free. Today’s passive RFID systems are more accessible and affordable than ever, offering improved read ranges and enhanced reliability.
A passive RFID solution often combines fixed position and handheld readers to optimize tracking. Fixed position readers continuously monitor tagged items at strategic points, such as entryways or specific zones within a facility, providing real-time visibility of assets. Handheld readers complement this by offering flexibility for on-the-spot scanning, making it easy to locate misplaced tools, parts, or manage work-in-process (WIP). This combination enhances accuracy and efficiency in tracking assets, ensuring that items are quickly found and accounted for. Fixed readers provide continuous monitoring at strategic points by allowing users to review the last observed location of an asset, while handheld readers offer flexibility for on-the-spot scanning and detection.
Active RFID:
Active RFID tags come equipped with an internal battery, allowing them to broadcast signals over much longer distances—which can be 300 feet or more (could be miles). These tags are ideal for tracking high-value assets across large areas, such as expansive warehouses or entire company campuses. Some active RFID tags can create their own mesh network, where each tag communicates with others to form a dynamic and adaptable system. This network allows for real-time monitoring and precise location tracking, even in challenging environments.
By leveraging multiple RFID technologies, ID Integration offers comprehensive and tailored RFID solutions to meet the diverse needs of various industries, including aerospace, government, healthcare, manufacturing, and MRO sectors. Our approach customizes the mix of technologies—leveraging passive RFID systems, active RFID, and more—to deliver precise, scalable, and cost-effective asset tracking capabilities.
Q. How does RFID technology speed up inventory counts?
A. RFID technology significantly accelerates inventory counts by allowing one staff member to count thousands, even hundreds of thousands of items per hour. Unlike manual counting, which is time-consuming, RFID readers can quickly scan tags, providing real-time data on stock levels. This efficiency reduces labor costs and minimizes operational downtime, allowing businesses to maintain accurate inventory records with minimal disruption.
Q. Many companies boast about the read range of their RFID systems. In reality, how much range can you get?
A. The answer to this question depends upon where you place the RFID tag and/or where the tagged item is stored. Much of the popular read range hype is a myth, because the physics of radio frequency are unchangeable, and many variables must be taken into account.
For instance, is the tag affixed to metal? This may change the read range potential, because metal mounted tags don’t read as far as those for non-metal tags.
As another example, we conducted a test at our ID Integration office. First, we placed an RFID tag on the front of a label printer device. Next, we placed an RFID tag on the back of the device. Surprisingly, we experienced a better read range when the tag was placed on the backside of the device. Here’s why: Our building has metal studs inside the walls and reflected energy from the studs delivered more power to the tag than a straight on approach could.
As an experienced system integrator, we understand the many variables involved with read range and can offer multiple solutions—even hybrid solutions—to fit your unique needs. Reach out to our RFID consultants, and we’ll take your environmental variables into account for a customized system approach. Feel free to call us at (425) 438-2533 to talk with one of our RFID experts.
Q. Can RFID be integrated and combined with other technologies?
A. In today’s smart manufacturing environments, it’s not just about choosing one tracking technology over another; it’s about creating a synergistic system that leverages the strengths of multiple technologies, such as RFID, barcoding, or even vision sensing, to enhance overall production efficiency and asset management. This integrated approach enables businesses to track and manage assets more effectively across various stages of their operations.
Integrating these technologies allows for flexible tracking of both dynamic and stationary assets. For example, movable assets like tools or mobile equipment can be monitored in real-time, or near-real-time with RFID. In contrast, fixed assets such as heavy machinery or office furniture can be efficiently cataloged using barcodes. This hybrid tracking approach simplifies inventory audits by eliminating the need for physical scanning of each item and enhances data accuracy and accessibility. Need tracking in a hospital operating room? Learn more about the Snap&Go™ in the OR and procedure rooms for automated charge capture of medical devices, implants, and everything in between.
The challenge lies in effectively managing the diverse data streams from these different technologies. Advanced or cloud-based software platforms are pivotal in this context. They integrate and analyze data from diverse sources such as RFID tags, barcodes, and vision sensors, providing a comprehensive overview of asset locations and movements. Such capabilities are essential for maximizing operational efficiencies and streamlining workflows in sectors, like maintenance, repair, operations (MRO), and inventory management.
As experienced system integrators, we at ID Integration are equipped to design and implement a tailored solution that combines these technologies to meet your specific operational needs. We provide comprehensive support, from software and hardware setup to on-site training, ensuring that your integrated system delivers optimal performance. Contact us at (425) 438-2533 to discuss how we can help you achieve a seamless transition to a smarter, more integrated asset tracking system.
Q. How does RFID data improve the data in ERP systems?
A. RFID data enhances ERP (Enterprise Resource Planning) systems by providing accurate, real-time inventory information. After RFID counts, discrepancies between actual stock and recorded data are identified and corrected. The updated and verified data is then fed back into the ERP system, ensuring it operates with precise inventory levels. This integration improves the ERP system’s accuracy without replacing it, leading to better inventory management and more efficient operations.
Q. Is there a system for RFID tool tracking that goes beyond the walls of my workplace and functions outdoors?
A. RFID technology can extend beyond indoor environments. Rugged RFID tags designed for outdoor use withstand harsh conditions, and some systems even incorporate GPS for tracking across wide areas. These solutions are perfect for applications requiring tracking between buildings or across large outdoor spaces.
These rugged RFID tags are designed to withstand the rigors of wide temperature and humidity fluctuations found in outdoor environments. They’re equipped with beepers that sound off at 75 decibels to pinpoint exact locations of assets. Receive hourly sensor reports, and activate notifications by cell phone or tablet, while you’re on the go with Android or iOS operating systems.
Learn about RFID solutions that are on the horizon, ready to herald in a new future to asset tracking: Download our free white paper, “Leveraging IoT and Cloud Manufacturing to Revolutionize Asset Tracking & Audit Prep”. To get in-the-know about our cloud-based solutions for your wide-range RFID location tracking needs, contact our RFID consultants at (425) 438-2533.
Q. Which RFID solution is the best fit for my business application?
A. RFID can be used for anything from tracking tools that are checked out and locating assets for audits to keeping tabs on work orders and determining the status of parts ready to be shipped. The applications for RFID technology are infinite and limited only by your imagination. If you have a tracking problem, we have the RFID solution to fix it. Consider working with a subject-matter expert, like ID Integration, to walk you through. There are a wide range of variables to consider.
Are you performing item-specific (specific part or serial numbers) asset tracking throughout a product lifecycle?
We choose between a combination of active, passive, and even combined RFID technologies for applications including:
• Smart manufacturing applications—Keep an eye on the location of small parts within a restricted area, while reducing the need for human interaction to supply asset status maintenance status.
• Calibrated tools/instruments -Know the location and status of calibrated instruments. Enforce training programs for users and even know if the instrument has taken damage and needs recalibration.
• Supply chain applications—Track critical inventory, raw materials, and finished goods.
• Chemical use and storage applications—Track where lubricants and cleaners are received, stored – when they are used, and who used them.
Are you tracking valuable tools and assets indoors, in a hospital or healthcare facility, or across a warehouse floor?
Consider some proven applications that rely on non-proprietary passive RFID:
• RFID work order processing—Seeing a work order through receiving production, packaging, and shipping.
• Audit applications—Government parts suppliers and consumer parts manufacturers easily locate assets, tools, & equipment needed for inventory reviews.
• Healthcare (hospitals and medical clinics) and pharmaceutical applications—Know where ventilators, wheelchairs, and other mobile equipment can be found throughout your hospital. Keep a ready inventory of medical devices, supplies, and medications available at a moment’s need with RFID smart cabinets.
• Workflow application—Follow the work in process (WIP) of parts, assets, and tools, fixtures, and jigs in production or undergoing maintenance.
• Automated inventory management of chemicals used in laboratory experiments, ensuring the ability for staff to quickly locate needed items and ensuring necessary chemicals are well stocked and always accessible.
• Storage applications—Track the placements of high-valued assets in storage.
• Office and home applications—Keep a complete inventory of important items at the ready in the event of a loss in a disaster.
• Gallery applications—Fine art is safe from theft when you can track any unauthorized movements.
Are you tracking parts, products, tools, and equipment between buildings, across several floors of buildings, between parking lots, and across acreage?
V-Tag GPS™ RFID Location Tracking System (LTS) is the solution for:
• Warehouse shipment applications—Track incoming and outgoing shipments, and monitor delivery and receiving of pallets of materials.
• Building, construction, and landscaping applications—Know when equipment is moved from the yard and who moved it.
• Healthcare (hospitals and medical clinics) and pharmaceutical applications—Know where ventilators, wheelchairs, and other mobile equipment can be found throughout your hospital. Keep a ready inventory of medications available at a moment’s need.
• Car lot tracking applications—Locate rental vehicles within and between parking lots.
• Location of parts and tools for aerospace applications—Discover where to find materials across hangars.
• Government and military applications—Get the big picture of locations for Item Unique Identification (IUID) for uploading to the FDA or DoD Registry.
• Clubhouse and school applications—Check out sport equipment and monitor its return to avoid loss.
• Chemical tracking applications—Keep drums of hazardous chemicals under close watch by monitoring their movements within restricted areas.
• Port and harbor container applications—Oversee incoming and outgoing shipments awaiting Homeland Security inspection.
Learn more about the diverse range of options in RFID technology.
Q. How is RFID used in Department of Defense standards for military marking for shipment and storage (MIL-STD-129R)?
A. RFID plays an important role in the Department of Defense’s MIL-STD-129R standards, which govern military marking for shipment and storage. The standard mandates the use of passive RFID technology for palletized unit loads and case shipments, in compliance with EPC global Class 1, Generation 2 RFID tag rules. RFID tags, along with 2D PDF417 barcodes and linear barcodes, enhance tracking and identification of items, including non-serialized (NSN) and serialized items. The addition of Transportation Tracking Numbers (TTNs) and specific labeling requirements for ammo and explosives ensure comprehensive asset management and safety compliance.
Q. How can RFID improve inventory management in retail?
A. RFID technology significantly enhances inventory management in retail by providing real-time visibility into stock levels. This reduces discrepancies, eliminates stock outs, streamlines stock replenishment, and ensures accurate inventory counts. Retailers benefit from fewer stockouts, more efficient inventory audits, and improved customer satisfaction. RFID can also track items throughout the supply chain, offering insights into product movements and helping to optimize logistics. By automating many inventory-related tasks, RFID frees up staff to focus on customer service and other critical operations, leading to overall improved efficiency and profitability.
Q. How does RFID improve supply chain management?
A. RFID enhances visibility within the supply chain, improving accuracy in shipment tracking, reducing manual labor, and minimizing errors. It enables better communication and coordination with suppliers, manufacturers, and customers, leading to streamlined operations.
This is especially critical for medical device manufacturers and healthcare facilities.
Medical Device Manufacturers: Tracking consignment inventory is essential. RFID Smart Cabinets automate this process, ensuring full accountability and management of inventory.
Hospitals/Healthcare Facilities: RFID technology ensures critical supplies and medical devices are maintained in inventory and readily available for procedures and surgeries, enhancing overall efficiency and patient care.
This technology’s benefits extend across the supply chain, making it a valuable tool for improving operational efficiency and accuracy.
Q. Can RFID be used for security and access control?
A. Yes, RFID is widely used for security and access control applications. RFID tags can be embedded in ID badges to control access to restricted areas, ensuring only authorized personnel can enter specific zones.
Tracking Employee Movement:
RFID systems can log entry and exit times, providing a detailed record of personnel movements.
Real-Time Monitoring:
Security teams can monitor access points in real-time, enhancing overall security.
Integration with Other Systems:
RFID can be integrated with surveillance cameras and alarm systems to offer a comprehensive security solution.
Applications in Healthcare:
In hospitals, RFID can ensure that only authorized medical staff can access sensitive areas like medication storage or operating rooms. This helps to maintain security and ensure patient safety.
Q. How does RFID contribute to smart manufacturing?
A. RFID enables smart manufacturing by providing real-time tracking of work-in-process, reducing production delays, enhancing quality control, and enabling predictive maintenance. This leads to higher efficiency and reduced operational costs. By integrating RFID with smart manufacturing systems, businesses can automate inventory management, monitor production lines, and quickly respond to disruptions.
Q. How does RFID technology integrate with the Internet of Things (IoT)?
A. RFID technology, when integrated with IoT, provides enhanced data collection and analytics. This integration allows for real-time monitoring, predictive maintenance, and improved decision-making based on comprehensive data insights.
Key Benefits of RFID Location Tracking and IoT:
Real-Time Data: Continuous monitoring of assets and inventory for real-time status updates.
Predictive Maintenance: Early detection of potential issues, reducing downtime and maintenance costs.
Improved Decision-Making: Comprehensive data insights enable better operational and strategic decisions.
Healthcare Applications: Hospitals can use RFID and IoT to track medical equipment, monitor patient health, and ensure timely supply replenishments.
Supply Chain Management: Enhanced visibility and control over inventory levels, shipment tracking, and asset management across the supply chain.
Examples of Integration:
Smart Cabinets: Use RFID to automate inventory management in healthcare settings.
Asset Tracking: Monitor the location and status of high-value assets in real-time.
Environmental Monitoring: Track conditions like temperature and humidity in storage areas to ensure compliance with safety standards.
Q. What are the environmental factors affecting RFID performance?
A. Factors such as metal surfaces, liquids, and environmental conditions like extreme temperatures can affect RFID performance. Choosing the right type of RFID tags and readers, and proper placement, can mitigate these issues.
Q. Can an RFID reader read multiple passive RFID tags at once?
A. Yes, an RFID reader can read up to 1200 passive RFID tags per second. This enables the rapid scanning of several items without line-of-sight, significantly speeding up the process and enhancing efficiency in environments like warehouses and retail stores.
Q. Can I use passive RFID tags as locator beacons?
A. While passive RFID tags are not traditional locator beacons, they can effectively help locate parts or tools when combined with fixed position and handheld readers. The fixed position readers at key thresholds capture the last observed location of an item, narrowing down the search area. Then, a handheld reader can be used to locate the missing item, functioning similarly to a Geiger counter. The handheld reader beeps louder as it approaches the tagged item, making it easier to find misplaced tools or parts.
Q. How does RFID technology contribute to sustainable practices?
A. RFID technology supports sustainable practices by reducing waste and optimizing resource use. Accurate inventory tracking minimizes overstocking and spoilage, while efficient asset management reduces the need for excess inventory. Additionally, RFID can enhance recycling processes by accurately tracking recyclable materials through the supply chain.
Q. What are the differences between RFID and BLE (Bluetooth Low Energy) for asset tracking?
A. RFID and BLE (Bluetooth Low Energy) each have unique advantages for asset tracking:
Power Efficiency: Passive RFID tags do not require a power source and can be read from a distance, making them maintenance-free, unlike BLE beacons which need periodic battery replacements.
Cost: Passive RFID tags are typically more affordable than BLE beacons, especially for large-scale deployments.
Read Range and Scalability: Passive RFID systems can be scaled affordably with fixed-position and handheld readers, providing dependable asset tracking in various environments, while active RFID and BLE’s require a higher cost for implementation. BLE provides a wider read range making it a good potential solution for large rental car lots and similar applications.
Functionality: RFID tags offer high durability and can withstand harsh environments, making them suitable for industrial applications. BLE, while versatile, may not match RFID’s robustness in certain conditions.
In conclusion, RFID is a proven technology for comprehensive, scalable, and cost-effective asset tracking across various industries.
Q. How do I start implementing an asset tracking program?
A. We highly recommend starting with a pilot project or proof of concept project so that you can become familiar with the specific variables that apply to your location, process, and needs.
For more complex solutions, consider reaching out for personalized guidance to have our team conduct a site survey at (425) 438-2533.
Q. How do I know that the best RFID solution for my business application will perform properly in my workplace?
A. Here at ID Integration, we never recommend cookie-cutter solutions. Instead, we’ll help you choose the RFID system, or augment your present system, to fit your specific purpose. Contact our RFID team, and we’ll perform a thorough assessment of your needs and the environment where you will be implementing your RFID system. In this way, we ensure that your customized RFID system performs perfectly for your application.
Do you have more questions about RFID system cost, installation, and implementation? Give us a call at (425) 438-2533. We look forward to guiding you in your choice to use RFID technology.