Know about RFID

With the gradual commercialization of 5G technology in 2019, people's imagination raised again about the future of the connected world. But do you know tha our lives are already full of various Internet of Things technologies, which the most widely used is RFID technology.

1. What is RFID

RFID is the abbreviation of Radio Frequency Identification, is a radio frequency identification technology.

It is a non-contact automatic identification technology. It can automatically identify the target object and obtain related data through radio frequency signals. The identification process does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and identify multiple tags at the same time, which is fast and convenient to operate.

Short-range RF products are not afraid of harsh environments such as oil stains and dust pollution. Barcode can be replaced in these environments, such as tracking objects on assembly line of factory. Long-distance radio frequency products are mostly used in traffic, and the identification distance can reach tens of meters, such as automatic toll collection or identification of vehicles.

2. RFID development history.

RFID directly inherits the concept of radar, and from this has developed a vibrant new AIDC technology - RFID technology. Harry Stockman in 1948 laid the theoretical foundation for radio frequency identification RFID.

In the 20th century, research on the theory and application of radio technology was one of the most important achievements in the development of science and technology. The development of RFID technology can be divided into 10 years as follows:

1941-1950. The improvement and application of radar gave birth to RFID technology. In 1948, the theoretical foundation of RFID technology was laid.

1951-1960. The early exploration phase of RFID technology was mainly in laboratory experimental research.

1961-1970. The theory of RFID technology has been developed, and some application attempts have begun.

1971-1980. RFID technology and product research and development are in a period of great development, and various RFID technology tests have been accelerated. There are some of the earliest RFID applications.

From 1981 to 1990. RFID technology and products have entered the commercial application stage, and various scale applications have begun to appear.

From 1991 to 2000. RFID technology standardization is getting more and more attention, RFID products are widely used, and RFID products have gradually become a part of people's lives.

2001—present. The issue of standardization is becoming more and more important, and the types of RFID products are more abundant. Active electronic tags, both passive electronic tags and semi-passive electronic tags have been developed, the cost of electronic tags has been continuously reduced, and the scale of the application industry has expanded.

The theory of RFID technology has been enriched and improved. Single-chip electronic tags, multi-electronic tag reading, wireless readable and writable, long-distance identification of passive electronic tags, and RFID adapted to high-speed moving objects are becoming a reality.

3. RFID application areas

The application of RFID in life is very wide, such as everyone's second-generation ID card, mobile phone's NFC, recharge card for public transportation, community or company access card, automatic charging management of parking lot, ETC of high-speed toll station . It is not limited to the field of personal use, it is even more applied in the industrial field. Such as :

a. Logistics: cargo tracking, automatic information collection, warehousing applications, port applications, postal services, and courier services in the logistics process

b. Retail: real-time statistics, replenishment and anti-theft of merchandise sales data

c. Manufacturing: real-time monitoring of production data, quality tracking, and automated production

d. Garment industry: automated production, warehouse management, brand management, single product management, channel management

e. Medical: medical device management, patient identification, baby anti-theft

f. Identification: various electronic documents such as electronic passports, ID cards, student IDs, etc.

g. Anti-counterfeiting: Anti-counterfeiting of valuables (tobacco, alcohol, medicine), ticket anti-counterfeiting, etc.

h. Asset management: all kinds of assets (precious or large quantity similar or dangerous goods, etc.)

i. Transportation: high-speed ETC, taxi management, bus hub management, railway locomotive identification, etc.

j. Food: Freshness management of fruits, vegetables, fresh food, food, etc.

k. Animal identification: identification management of training animals, livestock, pets, etc.

l. Libraries: bookstores, libraries, publishing houses, etc.

m. Cars: manufacturing, anti-theft, positioning, car keys

n.Aviation: manufacturing, passenger tickets, baggage tracking

o. Military: identification and tracking of ammunition, firearms, supplies, personnel, trucks, etc.