What Is the Reading and Writing Range of RFID Card Reader?
For users who have just come into contact with it, RFID still has a bit of a technological feel. So today we're going to share the read and write range of RFID card readers. There are many types of RFID card readers, and the reading distance of different RFID card readers varies, and the RFID tags they read also have some correlation. The read and write range of RFID card readers is related to many factors. Below, we will discuss the working range of corresponding bands for different frequency bands.
Understanding RFID card readers
RFID card readers, also known as wireless radio frequency identification, automatically identify target objects and obtain relevant data through radio frequency identification signals without human intervention. They can identify high-speed moving objects and multiple RFID tags simultaneously, and operate quickly and conveniently. RFID card readers include fixed and handheld ones, and handheld RFID card readers include low frequency, high frequency, ultra-high frequency, etc.
Read and write range of RFID card readers
According to the frequency used to transmit information between electronic tags and readers, the common working frequencies of RFID systems are divided into four types: low frequency (LF), high frequency (HF), ultra-high frequency (UHF) and microwave, and the read and write ranges of each frequency are different.
LF RFID readers: Generally speaking, the reading distance of LF RFID tags is less than 10cm, and the reading distance is proportional to the size of the tag. LF RFID is mainly used in animal tracking and identification, access control management, car circulation management, POS systems, and other closed tracking systems.
HF RFID readers: HF RFID card readers have good anti-metal and liquid interference performance, and the reading distance is mostly within 1m. RF RFID tags have a faster transmission speed, but poorer anti-noise interference performance. Generally, they have read and write and anti-collision functions. High-frequency RFID is the most widely used in the field of RFID, such as certificates, cards, tickets (ID cards, public transport cards, tickets, etc.). Other applications include: traceability of individual items in the supply chain, access control management, libraries, pharmaceutical industry, smart shelves, etc.
UHF RFID readers: The biggest advantage of UHF RFID card readers is their long reading and writing distance, which is generally 3-5m and can reach up to 15m. However, due to poor resistance to metal and liquid, they are less used for identifying single items and are mainly used for tracking management of boxes or pallets, luggage tracking, asset management, theft prevention, etc.
RFID asset tags are a non-contact automatic identification technology. The RFID asset tag has a chip and an antenna, can repeatedly write data and be used multiple times, and can be read in batches, saving costs.
Chinese Vice Premier Zhang Dejiang Visits Invengo HeadquartersApril 14, 2022Shenzhen, Chinese Vice Premier Zhang Dejiang, along with Xu Qin, mayor of Shenzhen, visited Invengo Headquarters. Zhang’s journey is to investigate the operation of Invengo.During the visit, Xu Yusuo...view
The Evolution of Stack Antennas in Communication SystemsJanuary 23, 2024Antennas are a vital component in communication systems, allowing the transmission and reception of electromagnetic waves for seamless connectivity. Over the years, numerous antenna designs have been ...view
Invengo New Products Attract Focuses on RFID Journal LIVE 2022June 21, 2022May 17, 2022, Las Vegas, United State. RFID Journal LIVE is the largest technology exhibition in RFID industry. The show was hosted in MANDALAY BAY, Las Vegas.Invengo attended the show as the global l...view
Don't Miss These Innovative RFID Tag Techniques!September 23, 2024With the rapid development of intelligent technology and the Internet of Things, RFID tags are becoming increasingly widely used in various industries. RFID tags, with their integration capability and...view
Invengo Aid Education, We Are Always HereApril 14, 2022SINGAPORE, 25 October 2019 –Aid Education, We Are Always Here.Recently, Mrs. Guangzhu Chen, the chairman of Invengo, once again embarked on the road of offering aid education for Luoguang Primary Sch...view