What is RFID (radio frequency identification)?
RFID (radio frequency identification) is a type of wireless communication in which electromagnetic or electrostatic coupling in the radio frequency section of the electromagnetic spectrum is used to uniquely identify an object, animal, or human.
How does RFID function?
Every RFID system is made up of three parts: a scanning antenna, a transceiver, and a transponder. When the scanning antenna and transceiver are joined, they are referred to as an RFID reader or interrogator. RFID readers are network-connected devices that can be portable or permanently affixed. When triggered, the tag emits a wave back to the antenna.
The RFID tag contains a transponder. RFID tag read range varies depending on factors such as tag type, reader type, RFID frequency, and interference from the surrounding environment or other RFID tags and readers. For example, tags with a more powerful power source have a more fantastic read range.
Problems with RFID
RFID challenges may be classified into three categories:
- Concerning technology.
- Concerning privacy and ethics.
- Concerned with security.
1. Technology-Related Problems:
1- RFID standards issues:
RFID is created in various methods by firms, worldwide standards are still being developed, and compatibility is being worked on. It should be noted here that some RFID devices do not need to leave the network, as are RFID cards used for inventory control within the organization. You can get from wxr rfid manufactuer.
There are development standards that operate in high frequency and low frequency, but huge companies prefer to use cards that operate on high frequencies that give a more comprehensive range than those working in low frequencies. Quarry cards function in high frequencies and have a list price of about $ 1000 or even more. Large firms need dozens of these readers to reach all the required areas, and also the need for millions of cards that are affordable but will be hung on the products be priced a few dollars, which makes the process expensive.
2- RFID systems can readily disrupt:
RFID systems that employ the electromagnetic spectrum (Wi-Fi networks and mobile phones) can collide, causing delays and frustration to customers who want to pay and leave the business.
In addition, the cards that hold the effective battery will be questioned continually at a low level of the battery if there is no answer.
3- RFID Reader Collision Interference:
Reader collision happens when two readers’ references overlap, and the card can reply to the two systems should prevent these scenarios, so the protocols and found the anti-collision, which enables the card to decide to deliver the information to the reader.
4- RFID Tag Collision:
When there are numerous cards in a small area and the reading time is short, it is easy for vendors to design systems that assure a response card and only one by utilising the necessary algorithms.
2. Problems of RFID security and privacy:
The following RFID card and reader issues have been identified:
1- RFID Tag Contents Can Be Read After an Item Leaves the Supply Chain:
RFID cards cannot have a varied value depending on the reader. Because the RFID reader is mobile and RFID cards can be read from a few inches to several yards, expanding the field to see what is in the purse or pocket while walking down the street may also fire the RFID card after leaving the main centre.
2 – RFID cards are a mobility issue (RFID Tags Are Difficult to Remove):
Some cards are small (half a millimetre square and can be sized and paper), and some of the last is to be hidden in the product where consumers can see them. In addition, RFID cards may now be printed on products using new technologies and be scrollable.
3 – RFID Tags Could Be Read Without Your Knowledge:
It can also read some of the cards without a pass or clear. Anyone with an RFID reader may read the chip on your clothes or any consumer goods without your knowledge; for example, when you enter a store, you will be checked if you are pregnant card, RFID, and so on. Can be near the person with the reader so he can read your card and find out how much money is in your wallet and carry this problem for privacy and security.
4 – With a High-Gain Antenna, RFID Tags could be read at Greater Distances:
For some reason, specific systems, the reader/card, are intended to increase the distance between the reader and the card. A higher profit for the antenna can be utilised to read cards from a distance, posing a significant privacy concern.
5 – RFID Tags with Individual Serial Numbers Can Be Connected to a Credit Card Number:
Currently, the Universal Product Code (UPC) is implemented with a bar code, allowing each product to have its own unique number. As with the purchase of any product, the RFID tag can be connected with the credit card number.
3. Concerns about security:
There are various categories:
1 – Data ownership and data mining techniques:
Express routes in data collecting are concerned with privacy and data ownership. For example, the investor’s personal card information may be used to detect a medical condition, which was an issue previous to the adoption of RFID, but the large amount of information offered by RFID cards causes us to be concerned about the security of this information.
2 – Data theft:
To steal the data, we must first log into the computer system. 2 to carry out skilful stealing Since RFID tags transmit data, scanners can readily read the confidential data. Many card makers have included security features such as encryption technologies to secure data.
3 – Data corruption:
Most anti-RFID cards to create. Depending on the application and security sensitivity, this function may be protected (the card writes it once and is read by numerous devices) or remain effective. Many of the cards in the library stay unlocked for freedom in re-using this card for other books or to believe in validating the tracking research.
4 – Concerns regarding how RFID will be used:
Advocacy groups and civil liberties organisations have raised concerns about using RFID to track people’s movements. For example, passports will contain RFID and airport scanners, allowing anyone to follow any passport through this card from when they left the car to when they stepped onto the plane.
There is fear that the card will be valid after the purchase from the shop, which means that the thief traffic next to you can see what you purchased and count the items, and thieves can also find out what’s in the house before entering the house.
RFID tags embedded in military equipment and clothes are handy for tricking; however, in terms of the factors related to these cards, for example, the existence of explosives in a car, once the requisite card passed in front of it will operate these explosives. This, in and of itself, constitutes a threat to domestic and international security.
RFID has emerged as an alternative to barcodes for companies looking to track assets or manage a supply chain. Though RFID’s expansion has been hindered by its high cost and specific issues, it’s worth conducting your analysis to see whether it’s the right solution for you or not. Click here to read more.