Visão geral da tecnologia de identificação por radiofrequência
Identificação de rádio frequencia (RFID) tecnologia é muitas vezes referida como tecnologia de identificação por radiofrequência, mas de fato, the wireless word is best not to be omitted, because, from the communication point of view, the technology is actually based on the wireless carrier frequency. Non-contact two-way data communication technology. Claro, in essence, RFID technology should be classified as an automatic identification technology that includes both wireless communication technologies and data access and analysis technologies.
It is necessary to pay special attention to the fact that the realization of RFID technology is inseparable from the support of the back-end database system. This database is preferably composed of data tables based on an application; in practical applications, although it relies on electromagnetic waves to complete the recording medium (RF The card is read, written, and recognized, but the datasheet tells us what the electromagnetic wave recognizes.
Na verdade, RFID technology is not a special new technology. It has been more than 70 years since its basic theory was born. The development of RFID technology can be traced back to the Second World War when it was used in air combat operations to identify the enemy and the enemy (originated from radar technology). It has been found that the development of this technology can be roughly divided into several stages in a 10-year period, as shown below.
Em 1941-1950, the improvement and application of radar technology led to the development of RFID technology; em 1948, the theoretical basis of RFID technology was established.
Em 1951-1960, early RFID technology began to enter the exploration stage, mainly in the laboratory.
From 1961 para 1970, the basic theory of RFID technology was developed and some application attempts were started.
From 1971 para 1980, product development based on RFID technology was in a period of great development, and application testing of various RFID technologies was accelerated.
Between 1981 e 1990, RFID-based products entered the commercial application phase, and various system-level applications began to appear.
From 1991 para 2000, RFID technology standardization issues were taken seriously, and RFID products were widely used.
Desde 2001, RFID products have become more diverse, and active electronic tags, passive electronic tags, and semi-passive electronic tags have been developed, and application costs have been continuously reduced.
So who is the inventor of RFID technology?
In the industry, it is recognized that Charlie Walton is the inventor of RFID technology. He won the first patent on RFID in 1973 and eventually obtained more than 50 patents in related fields.
Atualmente, RFID technology has been widely used in the world, from identity recognition to highway billing to mobile payment, credit card payment, etc., there are RFID technology applications everywhere. Na verdade, RFID products have begun to be widely used in the following 15 areas around the world. These fifteen areas are:
- Logistics: cargo tracking, automatic information collection, warehousing applications, port command, and various express delivery.
- Retail field: real-time statistics, replenishment, and theft of sales data of goods.
- Manufacturing field: real-time monitoring of production data, quality tracking, automated production.
- Clothing field: clothing classification, warehousing management, brand management, channel management.
- Medical field: device management, patient identification, baby theft.
- Identity areas: identification of various electronic documents such as e-passports, ID cards, and student ID cards.
- Anti-counterfeiting field: anti-counterfeiting of cigarettes, alcohol, medicines, and anti-counterfeiting of tickets.
- Assets: identification of various assets (including valuable assets or large-scale asset identification)
- Food field: Freshness recognition of fruits, vegetables, fresh foods, etc.
- 11 Animal field: training animals, livestock animals, pet identification.
- Book field: book identification such as bookstores, libraries and publishing houses.
- Automotive sector: vehicle manufacturing, vehicle positioning.
- Aviation field: ticket identification, baggage tracking.
- Military field: identification and tracking of ammunition, firearms, supplies, personnel and trucks.
