Active RFID tags

by Juliann Virginia NIM: 2301885163

This acronym stands for Radio Frequency ID. Humans or items may be automatically identified using RFID, a technique that employs radio waves. Auto-ID, or Automatic Identification, is also a mechanism used by RFID. Auto-ID is a way of obtaining data without the need for a person to be involved in the process. Automated data entry is made easier by the use of Auto-ID, which operates automatically. One important distinction between RFID technology and barcodes is that RFID does not need a line of sight-reading, but barcodes require a line of sight-reading. The RFID technology idea is comparable to the barcode identification systems used in retail businesses. Among the RFID system’s components are tags, readers, and back-end systems (computing systems) that process the information received from the reader. RFID tags are made up of semiconductor chips, antennae, and packaging. The tag has a memory that holds a unique identifier. A local server, an RFID reader, and a previously programmed label (tag) are all required for an RFID implementation system. Data and applications that can be read from a tag using an RFID reader are stored on this server.

Radio-frequency identification (RFID) enables electronic data collection and storage in RFID tags. Using an RFID reader, a tag may be scanned. Only unique RFID tags are utilized, and each tag is different from the one before it. There is no such thing as an RFID tag with the same ID number as another. The RFID Reader is the only device that can access the data contained in the tag. Active and passive RFID tags are available. In contrast to active tags, passive tags may be utilized without the need for batteries. In other terms, RFID tags are known as active tags when they are driven by batteries that may be used to power circuits and antenna tags. The battery powers Active Tags, which produce signals that may be read and written to. For the most part, RFID doesn’t send out constant signals. Battery life will be conserved by restricting the frequency of RFID transmissions to those that are in agreement with the delivery and reception processes. On the transmitter or receiver, these trigger signals are often bundled together (Reader or Antenna). Back-end systems include microcontrollers and power supply for the antennas and microprocessors for the active RFID tags. Unlike passive RFID tags, active RFID tags have their own power source, an internal battery that enables them to have a very long scanning range, and a big memory bank. At speeds of up to 100 kilometers per hour, a single active RFID reader is capable of reading and collecting data from more than a hundred tags at the same time. In contrast to passive tag memory, active tag memory has a far larger capacity for data storage and transmission or reception and may be augmented by additional sensors such as temperature or humidity or vibration, or pressure.

Construction, public works, and security, among others, may benefit from the use of active RFID. Additionally, it may be used for on-site security purposes such as tracking and identifying individuals, as well as for purposes such as access control and the automated identification of objects. RFID tag cards in this active system have their own resources and are equipped with transmitters. Batteries or solar power may provide the energy needed. Having its own resources, this form of RFID has a range of between 20 and 100 meters, making it more versatile. Using its transmitter, this sort of RFID tag card will emit a signal. 455 MHz, or 2.45 GHz, is the most common frequency for this form of RFID technology.

References:

Djamal, H. (2017). Radio Frequency Identification (RFID) and its applications. Journal of Electrical Engineering,47.

Evizal, T. A. (2013). Active RFID Technology for Asset Tracking and. TELKOMNIKA, 137-139.

FZ Aska, D. S. (2012). IMPLEMENTATION OF RADIO FREQUENCY IDENTIFICATION (RFID) AS AUTOMATION ON SMART HOME. repository, 2-3.

Due to its high cost, this card is often used for high-value goods such as freight, containers, or automobiles.