Application of RFID technology

1, Logistics: Logistics warehousing is one of the most potential application fields of RFID, and international logistics giants such as UPS, DHL and Fedex are actively trying RFID technology in order to enhance their future logistics capabilities. Applicable processes include: goods tracking, automatic information collection, warehouse management application, port application, postal parcels, express delivery, etc.

2. Retail industry: RFID applications promoted by supermarkets such as Wal-Mart and Metro can bring benefits to the retail industry, including reducing labor costs, improving the visibility of goods, reducing losses caused by shortage of goods, and reducing the theft of goods. Applicable processes include: real-time statistics of commodity sales data, replenishment, anti-theft, etc.

3. Manufacturing industry: used for real-time monitoring of production data, quality tracking, automated production, personalized production, etc. It is more urgent to apply it in the field of production of precious precision goods.

4. Clothing industry: It can be applied to processes such as automatic production, warehouse management, brand management, single product management and channel management. With the decrease of label price, this field will have great application potential. But in application, we must carefully consider how to protect personal privacy.

5. Medical treatment: it can be used in the fields of medical device management, patient identification, baby theft prevention, etc. The medical industry is not sensitive to the cost of tags, so it will be one of the pioneers of RFID application.

6. Identification: RFID technology is widely used in personal identification documents because of its inherent characteristics of fast reading speed and difficulty in forgery. For example, e-passport projects are being carried out all over the world, and China's second-generation ID cards, student ID cards and other electronic certificates.

7. Anti-counterfeiting: RFID technology is difficult to forge, but how to apply it to anti-counterfeiting needs the active promotion of the government and enterprises. The applicable fields include: anti-counterfeiting of valuables (cigarettes, alcohol, medicines), anti-counterfeiting of tickets, etc.

8. Asset management: all kinds of assets (expensive or large in quantity, highly similar or dangerous goods, etc.). ) can be associated with almost all items with reduced label prices.

Extended data:

Radio frequency identification (RFID) is a wireless communication technology, which can identify a specific target through radio signals and read and write related data without establishing mechanical or optical contact between the identification system and the specific target.

Radio signals transmit data from tags attached to articles through electromagnetic fields modulated into radio frequencies, thus automatically identifying and tracking articles.

Some tags can get energy from the electromagnetic field emitted by the recognizer when they are identified, and do not need batteries; Other tags have their own power supply, which can actively emit radio waves (electromagnetic fields are tuned to radio frequencies). Labels contain electronically stored information that can be identified within a few meters. Unlike bar codes, radio frequency tags do not need to be in the line of sight of the recognizer, but can also be embedded in the tracked object.

Radio frequency identification technology is used in many industries. By labeling the cars produced, the factory can easily track the progress of the cars on the production line.

ingredient

1 repeater: It consists of antenna, coupling element and chip. Generally, tags are used as repeaters. Each tag has a unique electronic code attached to the object to identify the target object.

2 reader: a device consisting of antenna, coupling element and chip, which can read (and sometimes write) tag information, and can be designed as a handheld rfid reader or a fixed reader.

3 application software system: it is application software, mainly for further processing the collected data for human use.

Radio frequency identification system mainly has the following advantages:

1 convenient and fast reading: data can be read without light source, even through the outer packaging. The effective identification distance is longer, and the effective identification distance can reach more than 30 meters when using the active tag with its own battery;

2. Fast recognition speed: as soon as the tag enters the magnetic field, the reader can read the information in it immediately, and can process multiple tags at the same time to realize batch recognition;

3. Large data capacity: the 2D barcode with the largest data capacity (PDF4 17) can only store 2725 numbers at most; If letters are included, the storage capacity will be less; The RFID tag can be extended to10k; According to the needs of users;

4. Long service life and wide application range: its radio communication mode enables it to be used in highly polluted environments such as dust, oil pollution and radioactive environment, and its closed packaging makes its service life greatly longer than that of printed bar codes;

5 tag data can be changed dynamically: programmers can write data to tags, thus giving RFID tags the function of interactive portable data files, and the writing time is less than printing barcodes;

6 Better security: it can not only be embedded in or attached to products of different shapes and types, but also be password protected for reading and writing label data, which is more secure;

7 dynamic real-time communication: the tag communicates with the reader at a frequency of 50 ~ 100 times per second, so as long as the object attached to the RFID tag appears in the effective recognition range of the reader, its position can be tracked and monitored dynamically.

References:

Baidu encyclopedia-radio frequency identification technology