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  • Why algorithms will never replace shielded RFID tunnels

    Why algorithms will never replace shielded RFID tunnels

    The real challenge behind RFID reading accuracy

    Shielded RFID tunnels play a critical role in ensuring accurate inventory management and shipment verification. However, many operations still face challenges caused by interference, high tag density, and varying product configurations.

    When RFID data is unreliable, the impact extends beyond the reading process and affects inventory accuracy, traceability, and operational efficiency.

    Interference and stray reads

    RFID technology relies on radio frequency signals to communicate with tags. In real-world environments, several factors can affect reading performance:

    • Metal surfaces reflecting signals
    • High tag density inside cartons
    • Products located outside the intended reading zone
    • Different tag sensitivities and generations
    • Electronic interference from nearby equipment

    These conditions can increase the likelihood of read errors and create inconsistencies throughout the supply chain.

    The operational cost of inaccurate RFID data

    Even a small reduction in reading accuracy can create significant operational challenges.

    RFID issueOperational impact
    False positivesInventory discrepancies and incorrect shipments
    False negativesManual rework and productivity losses
    Stray readsReduced traceability
    Inconsistent readingsLower confidence in RFID data

    Accurate RFID operations depend on capturing the right data at the right moment, not correcting mistakes after they occur.

    What makes shielded RFID tunnels different

    A shielded RFID tunnel creates a controlled reading environment designed to eliminate external interference and ensure that only the intended tags are captured.

    Unlike conventional reading systems, shielded tunnels focus on achieving accuracy during the reading process rather than relying on software to compensate for missed reads.

    How shielded RFID tunnels improve performance

    Key advantages include:

    • Accurate carton verification
    • Reduced false positives and false negatives
    • Improved inventory visibility
    • Greater automation capabilities
    • Better integration with warehouse operations

    Algorithms versus physical accuracy

    Machine learning can help analyse data, but it cannot replace accurate data capture.

    AspectAlgorithm-based correctionShielded RFID tunnel
    Works onExisting dataPhysical data capture
    Training requiredYesNo
    False positivesPossibleMinimal
    False negativesPossibleMinimal
    Operational reliabilityVariableVery high

    No algorithm can recover information that was never captured correctly.

    How Clustag RFID tunnels deliver maximum accuracy

    At Clustag, we believe RFID accuracy should be built into the reading process itself.

    Our shielded RFID tunnels are designed to provide reliable performance even in demanding environments where conventional RFID systems may struggle.

    RFID Shield Technology

    Our RFID Shield Technology helps eliminate stray reads and significantly reduces external interference.

    Benefits include:

    • Higher read accuracy
    • Consistent performance
    • Improved operational reliability
    • Better inventory visibility

    High-speed processing without compromising accuracy

    Clustag shielded RFID tunnels can verify the contents of a carton in seconds while processing up to 400,000 RFID tags per hour.

    This ensures that businesses can automate high-volume operations while maintaining the highest levels of accuracy.

    Seamless integration and data intelligence

    Our solutions integrate with ERP, WMS, and automation platforms while leveraging Clustag RFID Solutions and Zentup to transform RFID data into actionable insights for better decision-making.

    Frequently asked questions

    Why choose Clustag as your RFID solutions partner

    Choosing an RFID solution is about more than hardware. It is about ensuring reliable results in real-world operating environments.

    At Clustag, we combine advanced RFID engineering, RFID Shield Technology, software integration, and data intelligence to help organizations maximize the value of their RFID investments.

    We support customers throughout the entire project lifecycle:

    • Requirements analysis
    • Product testing and validation
    • Solution design
    • ERP and WMS integration
    • Deployment and training
    • Ongoing support

    To learn more about our expertise, visit Why choose Clustag as your RFID partner.

    If you would like to test our RFID technology using your own products, visit our Customer Experience Center or contact us.

  • MQTT protocol: exchange data fast and efficiently with ZENTUP

    MQTT protocol: exchange data fast and efficiently with ZENTUP

    The MQTT protocol is one of the most widely used communication standards for connecting IoT devices, RFID readers, and business systems in real time. In logistics and industrial environments, where thousands of events are generated every day, organizations need a reliable way to exchange information without overloading their networks.

    However, transmitting data is only part of the challenge. Companies also need a platform capable of centralizing, processing, and distributing information across their operations. This is where ZENTUP comes in, helping organizations transform RFID and IoT data into actionable business intelligence.

    MQTT transports the data. ZENTUP transforms it into operational visibility and real-time decision-making.

    What is the MQTT protocol?

    MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol designed for environments where efficient communication is essential. Unlike traditional communication methods, MQTT minimizes bandwidth consumption while maintaining reliable data delivery.

    As a result, organizations across logistics, manufacturing, and Industry 4.0 use MQTT to support real-time operations and improve visibility throughout their processes.

    Why the MQTT protocol is ideal for RFID and IoT

    Businesses increasingly rely on MQTT because it offers several advantages:

    • Real-time communication.
    • Low network consumption.
    • High scalability.
    • Reliable message delivery.
    • Support for unstable network connections.
    • Easy integration with enterprise systems.

    Furthermore, MQTT enables organizations to connect large numbers of devices without significantly increasing infrastructure complexity.

    Hands holding a tablet with overlaid digital charts and graphs rpresenting real-time data analytics via the MQTT protocol and ZENTUP.

    How MQTT works

    MQTT simplifies communication by introducing a central component known as a broker. Instead of creating direct connections between every device and application, MQTT manages information through this centralized communication layer.

    Consequently, organizations can scale their operations more efficiently while reducing unnecessary network traffic.

    MQTT topics and subscriptions

    One of the key benefits of MQTT is the way it organizes information.

    Devices publish data to specific topics, while applications subscribe only to the information they need. When a new message is published, MQTT automatically delivers it to the relevant systems.

    For example, when an RFID reader detects a tagged asset, the reading can be shared instantly with warehouse management, inventory control, or traceability applications.

    MQTT ensures that the right information reaches the right systems at the right time.

    Quality of Service (QoS)

    MQTT also provides different levels of message delivery assurance, known as Quality of Service (QoS).

    Depending on operational requirements, organizations can prioritize speed, reliability, or maximum delivery accuracy. Therefore, MQTT can support everything from simple tracking applications to business-critical industrial processes.

    How MQTT and ZENTUP work together

    As RFID deployments grow, managing data from multiple readers, facilities, and business systems becomes increasingly complex. MQTT provides the communication layer, while ZENTUP centralizes and orchestrates the information flow.

    Together, they create a scalable architecture capable of connecting operational technology with enterprise applications.

    From RFID reader to business system

    A typical workflow follows these steps:

    1. An RFID reader detects a tagged asset.
    2. The reader generates a read event.
    3. MQTT publishes the event.
    4. ZENTUP receives and processes the information.
    5. ZENTUP validates and enriches the data.
    6. The platform automatically distributes information to ERP, WMS, or cloud applications.
    7. Users gain real-time visibility into the operation.

    As a result, organizations eliminate manual processes and improve traceability across the supply chain.

    Business benefits of MQTT and ZENTUP

    Organizations that combine MQTT and ZENTUP gain significant operational advantages.

    Operational challengeBusiness benefit
    Multiple RFID readersCentralized data management
    High event volumesEfficient real-time communication
    ERP and WMS integrationAutomated information exchange
    Business growthScalable architecture

    In addition, this combination helps organizations:

    • Improve operational visibility.
    • Accelerate decision-making.
    • Reduce integration complexity.
    • Connect multiple technologies through a single platform.
    • Scale RFID projects more efficiently.

    Implementing MQTT in RFID projects

    A successful RFID deployment requires more than connecting devices. Organizations also need a communication strategy that supports growth, security, and interoperability.

    Therefore, it is important to evaluate both the communication infrastructure and the data intelligence platform that will support the operation.

    Key implementation considerations

    When deploying MQTT in an RFID environment, organizations should:

    • Select the appropriate MQTT broker.
    • Define a logical topic structure.
    • Configure suitable QoS levels.
    • Secure communications and user access.
    • Integrate enterprise applications.

    Meanwhile, ZENTUP simplifies integration by centralizing information flows and connecting RFID infrastructure with business systems.

    Security in MQTT environments

    Security remains a critical requirement in industrial and logistics operations.

    To protect communications, organizations should implement:

    • User authentication.
    • TLS/SSL encryption.
    • Access control policies.
    • Secure device management.
    • Network segmentation.

    Moreover, companies can improve RFID reading accuracy through RFID Shield Technology, which helps reduce stray reads in complex environments.

    Frequently asked questions about MQTT and ZENTUP

    If you would like to discover how MQTT, RFID, and data intelligence can improve your operations, we invite you to complete our contact form or visit our Customer Experience Center to test the solution with your own products.

  • The Smart RFID Intralogistics Summit 2025 in Alicante

    The Smart RFID Intralogistics Summit 2025 in Alicante

    The Smart RFID Intralogistics Summit 2025 in Alicante

    Alicante. Clustag, a company specialized in data management and analysis through RFID technology for major international retail chains such as Mango, will host on 11th September in Alicante the second edition of “The Smart RFID Intralogistics Summit 2025”. This exclusive event will bring together top-level experts, business leaders and key players in the sector.

    The event aims to become the leading forum for discussing the challenges and opportunities of supply chain through advanced RFID technologies.

    According to Luís Rius, founder and CEO of Clustag, “The adoption of RFID solutions is marking a turning point in the efficiency, traceability, profitability of intralogistics processes. The Smart RFID Intralogistics Summit 2025 has been created to serve as the forum for sharing trends and key success factors in this evolution”.

     In statement, the company added “there are very few events or forums fully dedicated to RFID. That is why at Clustag we promote annual gatherings with an educational and discussion-oriented focus, convinced that only through knowledge exchange and professional networking will be able to accelerate the evolution of the RAIN RFID and strengthen its impact on the industry.

    Summit agenda: from retail to healthcare

    The agenda includes presentations on the future of embedded RFID tags, the transformation of retail, and smart applications in fashion and sports. It also covers the implementation of RFID solutions in critical environments such as healthcare and pharmaceuticals. Experts from Clustag and companies such as Impinj, Mango, and Zebra will participate in the event sharing their knowledge on identification solutions, data capture, and real-time supply visibility.

    Attendees will also discover how companies implement RFID solutions in inbound, outbound operations, order fulfilment and returns. These case studies will span industries such as fashion, sporting goods o pharmaceutical industry. In addition, presentations will show attendees how ZENTUP middleware manages data, controls discrepancies, and integrates seamlessly with ERP and WMS systems.

    A meeting point for innovation leaders

    “The event will bring together logistics managers, RFID technology providers and strategic partners. It will facilitate knowledge exchange and networking among professionals driving digital transformation in the sector. Organizers position Smart RFID Intralogistics Summit 2025 as a must-attend event for those seeking to drive innovation in a rapidly evolving industry.

    About Clustag

    Clustag is a technology company that develops and implements IoT and RFID solutions to improve the traceability, management and digitalization of assets, inventory and logistics processes. The company is headquartered in Ontinyent (Valencia) and has more than a decade of experience. Clustag provides a complete ecosystem covering the design, manufacturing, installation, and maintenance of advanced systems, tailored to each client’s needs.

    This corporate event is invite-only, but if you don’t want to miss future editions, get in touch with us. We will keep updated on upcoming summits, webinars, and opportunities to see our RFID solutions in action.

  • Real-time inventory: warehouse optimization with RFID solutions

    Real-time inventory: warehouse optimization with RFID solutions

    Supply chain efficiency plays a fundamental role in any retail operation. From keeping store shelves remain stocked to enabling omnichannel fulfillment, retailers must minimize waste and reduce transportation and storage costs. An efficient supply chain can transform a retailer’s business.

    A key factor in driving efficiency is real-time inventory visibility. A clear view of inventory from manufacturing to store allows retailers to make informed decisions. Moreover, it creates a foundation for integrations that improve fulfillment opportunities for customers.

    Specifically, within the warehouse, a vital hub in inventory movement, real-time inventory visibility is crucial for operational efficiency. Retailers must make important decisions here, such as shipping stock to stores that need it or fulfilling online orders.

    Effective warehouse management can optimize stock utilization, reduce manufacturing and transportation costs, and improve in-store sales opportunities through better replenishment.

    So, how can retailers achieve accurate and reliable real-time inventory visibility? The answer lies in item-level RFID solutions within a connected RFID ecosystem.

    The role of RFID solutions in warehouse receiving and real-time inventory

    Receiving stock in a warehouse is challenging. Some facilities process thousands of items every day. Many warehouse operators still track inventory manually using paper-based systems. As a result, this process wastes time and increases the risk of human error.

    Without precise inventory knowledge, retailers cannot make effective stock decisions. They can easily over-order (or under-order) products, and items can get lost. Additionally, unnecessary manufacturing, transportation, and storage of stock can be a costly mistake.

    RFID technology eliminates these inaccuracies and transforms warehouse operations. Consequently, it improves efficiency across the supply chain. Clustag’s MOT Station with RFID tunnel technology scans over 1,200 boxes per hour. As a result, it delivers inventory accuracy of up to 99.92%*. With highly reliable and precise technology, warehouse operators can automate their receiving process, eliminating human error risk and significantly reducing time spent on manual warehouse tasks.

    MOT Station: RFID high-performance tunnel

    Because products are equipped with RFID tags and scanned at item level upon arrival, warehouse operators can also receive various validations of their stock during receiving. Beyond improving inventory reliability and replenishment practices, Clustag’s MOT Station RFID tunnel provides visibility and correction of mislabeled or defective items, the ability to divert incorrect boxes to an audit line for inventory reconciliation, and reduces incidents during order preparation.

    Clustag RFID Tunnel MOT Station scanning boxes with high precision for real-time inventory management
    Clustag RFID Tunnel MOT Station enabling fast and accurate inventory scanning.

    Real-time inventory verification

    Once items are received in the warehouse, RFID solutions continue to add value at the next stage of the inventory journey. With real-time visibility of products, which can be scanned and tracked as they move, RFID-captured data allows retailers to make quick and accurate decisions. If stores require additional shipments, stock can be redirected to alternative locations to address low inventory levels. The technology also confirms the content of each shipment and easily detects missing or surplus items. From there, quick and precise decisions can be made to correct any issues or anomalies and ensure all warehouse shipments meet the needs of any location receiving stock.

    When delivering directly to customers from the warehouse, incidents can be minimized through real-time visibility of product movement. Warehouse operators can also keep track of shipped items for greater traceability in case of issues.

    Automated efficiency for maximum return on investment (ROI)

    The RFID Smart Flow provides a foundation of reliability for retailers when it comes to efficient warehouse operations. Equipped with real-time visibility of all stock, retailers can minimize waste and optimize inventory levels across the entire supply chain.

    This not only generates significant cost efficiencies but also ensures store shelves stay replenished and omnichannel orders can be fulfilled, enabling retailers to meet changing customer demands and maximize sales opportunities.

    For more information on how your retail business can drive operational efficiency through real-time inventory visibility using RFID solutions, RFID tunnel technology, and an integrated RFID Smart Flow, contact us today.

    *Results obtained from large-scale testing of products tagged according to international standards by Auburn University, including items made of RFID-compatible materials.

  • What to expect at MODEX 2024

    What to expect at MODEX 2024

    Hosted once every two years, MODEX brings together the entire supply chain ecosystem, showcasing the latest end-to-end solutions for the industry. Taking place in Atlanta, Georgia’s World Congress Centre from 11-14 March, expect to see the full spectrum of upcoming innovations in future-proofing manufacturing and supply chain operations.

    This global event is designed to help professionals from around the world come together to learn about the latest sector trends through powerful keynote speaker sessions and over 150 free seminars from industry leaders.

    If you’re a warehouse integration specialist looking to attend this year’s event, here’s what you can expect from MODEX 2024. 

    How RFID technology can advance supply chains

    Streamlined intralogistic operations reduce overhead costs. They achieve this by optimising transportation and storage processes. It can help brands move items from manufacturer to customer faster and more effectively, enhancing revenue opportunities and benefiting a company’s bottom line while helping them remain agile to evolving demands.

    Incorporating RFID empowers brands to enhance their warehouse operations. The technology enables users to automatically track all of their products at item-level as they move through the warehouse. This ultimately unlocks real-time tracking capabilities, high-quality inventory accuracy and increased efficiency, allowing for complete visibility across the supply chain.

    At MODEX, we will be providing an overview of our MOT Station. Delivering efficiency and reliability, the MOT station increases inventory accuracy by up to 99.92%. In addition,it is capable of scanning 400 tags per case at the speed of 1,000 cases per hour.

    Incorporated with RFID-Shield technology, the product ensures that only the contents within the MOT Station are scanned. Users can rest easy, safe in the knowledge that their inventory management practices are robust, reliable and efficient.

    Developments within warehouse automation

    Typically, warehouse processes require significant labour efforts to control and oversee various actions. Labour shortages can interrupt supply chains as a result of being understaffed throughout the supply chain. Furthermore, with manual inventory management practices in place, businesses become prone to human error, which can significantly reduce the accuracy of receiving and shipping within the warehouse.

    Developments in warehouse technology are helping brands overcome both of these issues by enabling concepts such as warehouse automation. With repetitive tasks conducted automatically within supply chains, several processes no longer require on-hand support; including inventory management.

    With solutions like Clustag’s MOT Station, human error decreases significantly. It enhances inventory management and allows warehouse staff to focus on more valuable tasks.

    Automation is expected to be a key trend across MODEX 2024, and for the first time we will be providing live demonstrations of our MOT Station, which is designed to deliver automation to warehouse operations while providing real-time, accurate visibility of stock.

    Streamlining material handling within distribution centres

    At this year’s MODEX event, some material-handling businesses will be focused on finding the right solution to help them deliver efficiency within the distribution centre. Day 3 of the trade show will provide visitors with an in-depth view of exactly how this can be achieved through RFID.

    Manolo Reguart, Director of Business Development, Strategy and Alliances at Clustag, will host Dean Frew, President and Board Member at SML Group, in Theater B at 3 pm to discuss how the technology can enable the material handling systems to improve inventory accuracy and supply chain compliance in distribution centres.

    RFID and automation improve inventory accuracy and supply chain in distribution centres. Proper deployment gives staff visibility over product type, quantity and location. It also enables end-to-end tracking and reduces human error.

    Our RFID solutions specifically target challenges with packaging, operations, and storage. This helps logistics companies gain complete visibility over the whereabouts and numbers of the stock they are processing.

    We’ll Be There! Stop by booth B10005, to learn more about how Clustag’s MOT Station can transform a business’s supply chain solutions, delivering efficiency, reliability and accuracy to inventory management.To find out more about how Clustag can help warehouse integration specialists deliver supply chain automation to their clients, talk to us today.

    *Results obtained from mass testing for products labelled according to Auburn University’s international standards, and for items composed of non-conflicting materials for RFID environments

  • NRF 2024: Retail’s signature event

    NRF 2024: Retail’s signature event

    Logo for NRF 2024 Retail's Big Show, held January 14-16 in NYC.

    Retail’s flagship event takes place in NYC from January 14-16. Clustag will attend the NRF 2024, to connect with industry leaders and show how RFID can support retail goals.

    Connect with us

    We would like to share with you our RFID intralogistics solutions at the show, and go deeper in why our technology increases the productivity and efficiency of warehouses with a 100% reliability and accuracy. In addition, we will have the chance to discuss not only the advantages that RFID offers in the point of sales, but also about how the warehouse processes become more efficient using it. We will be more than happy to attend your doubts and questions, and also work with you to determine which solutions suit better your demands.

    If you want to discuss things more in depth, do not hesitate to contact us here.