What is RFID:- Radio-Frequency Identification is a technology that RFID tags use to store and transmit information. RFID is used in everything from passports, to credit cards, to inventory systems for retail stores. RFIDs are passive devices which means they don’t require any power source other than the RF signal they receive from the reader. RFID uses electromagnetic waves to communicate with each other up to 10 meters away.


1. RFID stands for Radio Frequency Identification

2. It is a wireless technology that uses electromagnetic waves to store and retrieve data

3. The tags can be read from up to 30 feet away without the need for contact with the reader

4. RFID tags come in many shapes and sizes, but they all have an antenna and a chip inside them

5. There are three types of RFID tag – active, semi-active, and passive

6. Active tags require their own power source such as batteries or solar cells; Semi-active tags use energy from an external source such as a nearby reader or interrogator; Passive tags don’t require any outside power source because they only reflect back information when interrogated by another device like a reader or interrogator

How does RFID work

RFID tags contain RF antennas that act as a receiving antenna when an RFID reader transmits data. The RF waves emitted by the RFID Reader pass through non-metallic surfaces including clothing, paper, and plastic packaging. When these signals hit the RF tag it reflects back which sends information to the RFID reader about who or what is in possession of the RF tag.

RFID tags come in a variety of shapes and sizes, but the most common type is the “sticker” RFID tag which can be attached to objects like key chains, backpacks, or wallets.

There are also active RFID tags that have their own power source and can transmit data up to 100 meters away. RFID tags are so small they can be hidden inside other objects like toys, collectibles, and even in the body. RFIDs come with a unique 16 digit number that is read by RFID readers to identify an object or person’s information which allows for quick data collection about multiple items.

The most common use of RFIDs today is simply to speed up the checkout process at retail stores. RFID readers located near the cash registers can scan merchandise as it is being placed in a customer’s cart which reduces the amount of time it takes to check out. RFID tags can also be used to track inventory and locate misplaced items.

RFIDs are also being used more and more in passports and credit cards to help prevent fraud. RFID readers can be used to scan a person’s passport and compare the information stored on the RFID tag with the information on file for that person which helps to ensure their identity.

RFIDs are also being used in cars as a way to unlock and start the car without having to use a key. As RFIDs are becoming more widely used, RFID shields are being created to help protect people from RFIDs that might be transmitting information about them. RFID shells can block out certain RF signals while allowing other RF waves to pass through which makes it possible for you to carry on with your day in peace without having unwanted data transmitted about you or your belongings.

When and who was the first to introduce RFID technology?

ID technology is a radio-based identification system that can be used for tracking and identifying objects. RFID tags contain information which can then be transmitted to scanners or other devices using RF signals. RFID was first introduced in 1973 by the German company, Siemens AG.

RFID frequencies: What are the types of RFID systems?

An RFID system consists of three main components: RFID tags, RFID readers and a host computer. The RFID tag contains an integrated circuit antenna which receives power from the reader to operate at radio frequency when in its proximity. This allows for communication between the two devices – much like your phone connecting with your carrier’s cell tower to send and receive calls or data. RFID tags come in a variety of form factors, which can be read by RFID readers – stationary or mobile devices.

There are different types of RFID frequencies: low frequency (LF), high frequency (HF) and ultra-high frequency (UHF). LF RFID operates at 125 kHz and HF RFID at 13.56 MHz, while UHF RFID operates at around 900 MHz Each type of RFID frequency has its own advantages and disadvantages depending on the application. LF RFID is mainly used for animal identification, access control and ticketing, HF RFID is used for contactless payments, loyalty cards and transit passes, while UHF RFID is used for inventory management in retail and logistics, document tracking for healthcare.

What is the difference between RFID and Barcodes?

What is RFID and How Does it Work?

RFID is not limited to the number of characters, which means it can store more information than barcodes. RFID chips are also capable of storing vast amounts of data and continuously updating that data over time.

One way RFIDs work is by emitting radio waves with electromagnetic fields to communicate between two devices or one device and a reader. RFID chips are powered by RF waves which is an electromagnetic field. When the radio waves hit RFIDs, it powers up and then sends its information to a reader or device that can read RFIDs.

Another way RFIDs work is using RF signals from one source to activate another object with chip on board (COB) technology where all RFID chips have RF signals inside them. When RF signals are sent from the reader to an RFID, it activates it and then sends its information.

Barcodes work by using black lines that people can read with their eyes or a machine which is called barcode scanner/reader. A typical barcodes has several of different types of black lines which are different lengths and orientations.

The black lines have the numbers 0 to nine, lettered A through Z ,and some special characters that can be read by barcode scanner or reader machine. Barcodes also has white spaces in between each of the bars for people to see what they are reading so it is easier for them to understand.

When a barcode is scanned, it sends the number that is encoded in the black lines to a machine which then translates it into text.

Barcodes are limited to numbers and special characters, so RFID chips have the advantage of storing more information than barcodes. RFIDs can store data like date, time, location, and serial numbers. RFIDs can also be updated over time to store new information, while barcodes cannot do this which makes RFID more efficient than a traditional barcode.

Conclusion paragraph:

RFID tags are one of the most common ways to track items. Whether you’re tracking inventory or shipping, these tags can help your company become more efficient and productive. Do you use RFID tags in your business? Let us know what kind below!

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