RFID (Radio Frequency Identification) is a wireless technology that uses radio waves to identify and track objects automatically. It consists of RFID readers and tags, which can be passive, semi-passive, or active, depending on their power source. Unlike barcodes, RFID does not require a direct line of sight and can read multiple objects simultaneously. The technology operates at different frequency ranges—low, high, and ultra-high—each suited for specific applications like inventory management, security access, animal tracking, and logistics. RFID plays a crucial role in modern automation and tracking systems across various industries.
Main topics covered about RFID technology video
- Introduction to RFID – Definition and purpose of the technology.
- How RFID Works – Communication between readers and tags.
- Types of RFID tags – Passive, semi-passive, and active tags.
- RFID system components – RFID readers, antennas, and tags.
- RFID frequency ranges – Low (LF), high (HF), and ultra-high frequency (UHF) bands.
- Working principle – Inductive and electromagnetic coupling methods.
- Advantages of RFID over Barcodes – No need for direct line-of-sight, ability to read multiple tags at once.
- Applications of RFID – Retail, logistics, security, vehicle identification, and animal tracking.
Source: All About Electronics
