Main Functions and Application Scenarios of RFID Card Reader

RFID is a wireless communication technology that uses radio signals to identify and read/write data from targets without the need for mechanical or optical contact between the identification system and the target. RFID card readers communicate wirelessly with RFID electronic tags through antennas, enabling the retrieval or storage of tag identification codes and stored data. RFID card readers can distinguish moving objects and read multiple tags at once. Common forms of RFID card readers include fixed and handheld readers.

The main functions of RFID card readers

RFID card readers include reading the information stored in RFID electronic tags, writing information to RFID electronic tags, and modifying the information in RFID electronic tags. A standard RFID system consists of an RFID card reader, an antenna, and RFID electronic tags. The antenna design of an RFID card reader has an impact on its performance. The reading distance of RFID card readers is related to the power consumption of the reader module, antenna gain, and tag size and is also affected by environmental factors. RFID card readers are suitable for logistics distribution, smart retail, manufacturing management, apparel enterprise management, anti-counterfeiting, traceability, asset management, and other industries.

RFID card readers are widely used in various scenarios:

• Production management: RFID card readers can quickly detect whether the types and quantities of goods in the box are consistent in manufacturing management and provide a basis for quality tracing.
• Warehouse management: RFID card readers have a far reading distance, and workers can quickly collect information about goods by walking between containers with a handheld RFID card reader to complete inventory work.
• Store management: Workers can use an RFID card reader to quickly inventory display goods and inventory items and compare platform data to complete replenishment work. When receiving goods, staff does not need to unpack boxes and can use RFID card readers to batch call the goods in the box, helping staff to check in a timely manner, effectively reducing receiving time.

RFID reader selection

When choosing an RFID card reader, pay attention to the frequency range of the reader device to see if it meets the frequency specifications of the project location. Understand the maximum transmitting power of the reader and whether the matched antenna emission exceeds the limit, and determine whether a dual-interface reader is required based on application needs. The reader’s communication interface should also meet the requirements of the project. Understand the reading distance and anti-collision indicators, including which antenna and tag are being tested, and how long it takes to read all tags in what order.