UHF RFID Reader
A UHF RFID Reader can scan 1D and 2D barcodes and read HF NFC and UHF tags. Its compact and durable design makes it suitable for use in a variety of environments.
The AD9361 is an RF transceiver IC that integrates the transmitter, receiver, and all of the RF and mixed-signal blocks necessary to provide a complete UHF RFID reader RF front end. It supports all major UHF RFID protocols.
Anti-Collision
UHF RFID Readers have a unique antenna configuration and integrated circuit that allows RFID Wristband them to identify tags in a distance of up to 120 feet. They can be used in a variety of applications including retail, manufacturing, and supply chain management. They have a range of benefits over barcodes, such as the ability to read through products and packaging, and do not require line-of-sight.
Collision detection is a key issue in an RFID system. Tag-to-tag and reader-to-reader collisions can degrade the performance of an RFID system by decreasing the number of identified tags per time unit. The different anti-collision protocols that are available can be classified into three categories: schedule-based, coverage-based and control-based mechanisms.
The current RFID standard EPC Class1 Gen2 uses the dynamic framed slotted Aloha (DFSA) protocol to prevent readers from broadcasting at the same time. This protocol has a sift probability distribution in the contention phase, which is a truncated geometric distribution that helps to solve the problem of collisions between readers. When a reader receives a command, it signals the neighbors and starts an identification round in time slots. The readers that receive the command will be signaled as ACTIVE, while the others will be called WAITING. The WAITING readers will increase their order ticket when notified by an outgoing ACTIVE reader or their internal timer, and only the highest ticketed reader will access the RFID frequency next.
High Sensitivity
UHF RFID Readers are able to identify tags at a distance by transmitting a radio frequency signal and receiving the reflected backscattered signal from the tag. This method allows one reader to communicate with many tags simultaneously. The performance of the system depends on both the transmitter and receiver sensitivity, as well as the signal-to-noise ratio. High sensitivity readers provide greater read ranges and more accurate data, which is critical for tracking inventory and providing traceability.
In order to meet GB/T 35786-2017 requirements, the reader sensitivity must be better than -64.4 dBm. This requires the RF front end to have great sensitivity and signal-to-noise ratio, as well as good transmitter-to-receiver isolation. To achieve this, the RF front end should have a high signal-to-noise ratio (SNR), a low noise floor and an excellent transmitter power amplifier.
The FEIG ELECTRONIC UHF RFID Reader is the best choice for this type of application due to its superior performance and consistent sensitivity in different environments. It also provides more reliable scalability and features higher immunity to interference from other devices.
The directional reading capability of this reader is another important feature for traceability applications. Tag orientation can be a significant factor in determining read rate, especially for circularly polarized tags. The reader antenna needs to be positioned close enough to the tag to provide optimal performance.
Long Range
Long range UHF RFID Readers use radio-frequency waves to wirelessly transfer data between a reader and a tag/label to identify, categorize, and track assets. They can detect objects at distances up to 12 meters (40 feet) or more, and can be used in a wide variety of applications such as inventory management.
Unlike HF systems, which have a much shorter read range and transmission speed, UHF tags provide higher data transfer rates and can be read up to 20 times more quickly. This enables quicker transaction capture and more accurate data processing.
In addition, the ability to communicate with multiple tags simultaneously allows for a more accurate and efficient process of tracking products within the supply chain. This allows companies to make more informed business decisions that can improve the bottom line.
A UHF RFID Reader can be fixed or handheld and each has its own unique specifications and advantages depending on the application. For example, a fixed system can be mounted to the ceiling or wall and is able to continuously collect data in real time whilst an handheld can be moved between work stations.
Our NT 910 PXY UHF RFID Long Range Reader can sense compatible GS1 EPC Gen 2 RFID tags up to 20 Meters under ideal conditions. To achieve this the RF Module and antenna are optimized for long range sensing. To determine if the RF module can establish a reliable Reader/Tag link, we calculate the System-Level Link Budget which takes into account all gains and losses on both the Forward and Reverse links.
Low Power Consumption
UHF RFID Readers use less power than other types of RFID scanners, and UHF RFID Reader some models can be used with battery powered handhelds. This makes them ideal for use in battery-operated, mobile applications such as inventory management and tracking assets. This low power consumption also allows for smaller form factors that are suitable for embedding in products or appliances, including fridges, smart cabinets, drones and printers.
The ultra-high frequency of the tags helps them to operate at a greater distance than LF or HF tags, making it easier for businesses to locate inventory and equipment in warehouses, retail environments and more. This can dramatically reduce response times and help businesses achieve operational efficiency gains.
Additionally, the real-time nature of UHF RFID enables businesses to monitor production statuses and inventory levels instantly, which can help streamline operations and reduce labor costs. These real-time insights enable businesses to make more informed decisions and maximize resource utilization.
This is particularly beneficial in industries where traceability and inventory tracking are critical, such as pharmaceuticals, healthcare, food & beverage and electronics. With the increased availability of e-commerce, many consumers have come to demand full product transparency and traceability from manufacturers. This is made possible by UHF RFID systems, which can deliver massive amounts of data in real time. This data is then stored in a central database and accessed by employees across sites, allowing for streamlined inventory management and improved operational efficiency.