Radio Frequency Identification (RFID) – is a wireless technology that uses electromagnetic waves to transmit data between two devices. The RFID reader automatically detects objects labeled with RFID tags, reads the data encoded in them, and stores it for further processing. RFID process is a one-way communication wherein a reader reads the data from the tag via the antenna.
RFID is basically of two types-
Low-Frequency RFID – works well for short distances, about 10 cm between the reader and the tag
High-Frequency RFID – offers a range of up to 1 m
RFID Access Control Systems
RFID technology can be used for door access control systems, where data can be exchanged between a key card and a reader up to a few feet away. It is used in access control systems to allow only authorized personnel and with a specific access level to unlock a door.
How does it work?
Every RFID based access control system follows a similar procedure –
Advantages of RFID Access Control System
Drawbacks of RFID Access Control System
Despite fast and purely authenticated access, RFID access control systems have few vulnerabilities too. Some of the vulnerabilities may even lead to a security breach. The significant drawbacks of RFID access control systems are –
NFC stands for Near Field Communication and is a wireless technology for a short-range that enables two devices to communicate wirelessly. Unlike RFID, an NFC device can act as both – a tag and a reader and information flow are bidirectional between two NFC devices. The range of NFC is only up to 4 inches.
The functionality of NFC is quite similar to RFID, but NFC technology is more modern and can be used in mobile access control systems. Smartphones can have smart tags activated on them, through which the phones can act as both transmitter and receiver of data.
NFC Access Control System
NFC Access Control Systems are becoming more popular these days. Due to their mobile access control, they are much preferred in contrast to RFID. Since in NFC the communication is bidirectional, there is an extra layer of security that can differentiate between a friendly reader and a fraud.
How does it work?
NFC works on the same principle as RFID. They can make use of key cards to transmit data and they also have the additional feature of using smartphones to gain access.
Advantages of NFC Access Control System
Drawbacks of NFC Access Control System
The only drawback when compared to RFID is – NFC devices have a shorter range so the user has to be near the reader.
The choice of access control depends upon you and your requirements, there’s no one correct answer. If you are an organization with valuable assets (including information, devices, etc.) and safety is your primary concern, then you might find NFC Access Control System a better fit for your organization. But if your objective is a faster and high-range access control system then RFID should be your first choice.
Spintly offers an NFC-based Access Control System to streamline your door access control with NFC Cards for a hassle-free, convenient, and wireless access experience. We believe in Amplifying the Simplicity and our main aim is to reduce the hassle of the wired access control system. For a secure experience, Spintly provides fully encrypted communication between the reader and the NFC card and can reduce the threat of cloning or copying key cards.