Intelligence is around

RFID (Radio Frequency Identification) is a radio frequency identification technology. By definition, RFID refers to a technology that uses a dedicated RFID reader and a dedicated RFID tag that can be attached to a target to transmit information from an RFID tag to an RFID reader using frequency signals. Structurally, RFID is a simple wireless system that includes two basic components that can be used to control, detect, and track objects. The system consists of an interrogator (also known as a reader) and a number of transponders (or labels).

RFID tag is a very important component of RFID technology. Compared with traditional tags, it has the advantages of fast reading and writing speed, long reading distance, large data capacity and recyclability. It has been rapidly applied in many fields. It is called "intelligent" label.

(1) Structure and manufacturing process of RFID tags

The RFID tag consists of a chip, an antenna and a substrate. Among them, the antenna of the RFID tag plays a very important role. It not only modulates and reflects the information stored in the RFID tag, but also captures the electromagnetic wave emitted by the RFID reader to provide energy for the chip of the RFID tag.

The manufacturing process of the RFID tag antenna mainly includes an etching method, a coil winding method, a direct printing method, a chemical plating method, and the like.

(1) Etching method. This method is a relatively traditional production method with high production precision, high radio frequency identification and good matching. However, this process has the disadvantages of serious environmental pollution, low utilization rate of raw materials, complicated manufacturing process and high production cost.

(2) Coil winding method. This method is simple in manufacturing process and is mostly used for the production of low frequency antennas, but the production cost is high, the production efficiency is low, and the number of antenna coils is large.

(3) Direct printing method. Depending on the printing method, there are many ways such as screen printing, flexo printing, gravure printing, and inkjet printing . Because the printing method is more flexible, the antenna's electrical performance parameters are precisely adjustable, the shape of the antenna can be arbitrarily changed, and the substrate type is more diverse; however, the direct printing method is slightly less accurate (error ≤ ± 0.1 mm), and the antenna line is more Thick (minimum 0.15mm), in some cases the resistance can not meet the requirements of use.

(4) Electroless plating method. This method has a uniform metal plating layer and can deposit a plating layer on a non-conductor substrate, and the production cost is relatively low, but the substrate needs to be processed, and the plating solution also needs maintenance.

(2) RFID tags around you

With the increasing diversification of RFID tag antennas and the gradual reduction of RFID tag costs, the application of RFID tags is expanding. In some areas, RFID technology has become an innovative technology and has become a market for enterprises. Competitive "secret weapon".

1. RFID tags help the aviation market get high returns

RFID technology is very suitable for the aviation market because it can quickly scan objects and quickly locate objects. RFID solutions provide high returns for investments by airlines, airports and security agencies. The RFID baggage tag reduces the baggage loss rate by approximately 40%, increases the on-time rate of flight departures, and provides more commercial aviation security.

Las Vegas McCarran International Airport is one of the pioneers in the use of RFID tags. Statistics show that in 2010, RFID baggage tags saved about $700 million for the airline industry and will break this record in future operations.

It is also known that due to the use of RFID baggage tags, the cost of handling one piece of baggage at Hong Kong International Airport has dropped to 4 to 7 yuan. On the one hand, because the barcode is easily damaged in the handling of the baggage package, and the scanning success rate is only 67% to 80%, and the RFID baggage tag has a reading success rate of 97% to 100% in the same time; Because there is almost no mistake in reading the RFID baggage tag, the use of the RFID baggage tag reduces the baggage loss rate by 30% to 40%. More importantly, RFID technology can quickly find packages that require re-security or prioritization through RFID technology.

2. RFID tags are used for clothing anti-counterfeiting and anti-counterfeiting goods.

It is estimated that the annual market affected by counterfeit products in the world reaches 300 billion US dollars, which is 10% of the total world trade. RFID technology can effectively solve the phenomenon of counterfeiting and counterfeiting products. In the anti-counterfeiting application of RFID technology, clothing anti-counterfeiting is a relatively common category. One of the main advantages of RFID technology for manufacturers is that they can be integrated directly into products, machines or equipment, without major changes to existing production equipment. The RFID tag itself has read and write capabilities, can be written to the manufacturer's unique encryption code, and easily integrated into a variety of goods. Apparel manufacturers put their own RFID read-write tags and clothing in a carton, each with its own unique ID code. When the production is completed and the shipping process is completed, the carton passes through the RFID tag reader, and all the information in the carton is read and transmitted to the PC. The PC software system compares the actual information read with the planned shipping item of the carton to determine whether to release. At the same time, if the carton is released, the ID number of the carton will be written into the corresponding RFID read/write tag memory and locked. In this way, all the clothes from the production to the distribution center, to the entire process of retail can be recorded, can play a good role in anti-counterfeiting, anti-smuggling.

3. RFID tags have great potential for application in the wine market

The demand for RFID tags in the wine sector seems to be stronger than any other food and beverage market. Jonathan Byrnes of Harvard Business School believes that the cost-benefit ratio of using RFID tags on low-value department stores is too high. However, for alcoholic beverages, the return on investment using RFID tags is much higher.

The market structure of the US wine industry also demonstrates the importance of using RFID tags on wine bottles. If $7 per bottle is used as the tipping point for high-priced and low-priced wines, then low-priced wines account for 70% of sales, while winemakers' 62% of profits come from high-priced wine sales. Therefore, wine manufacturers are considering the use of RFID tags in high-priced wine products in terms of higher safety, better control, and market value.

4. Advocate green environmental protection with RFID technology

Kraft Foods' recycling program is an excellent example of applying RFID technology to promote green environmental protection. Kraft uses RFID technology to track the use of empty containers and materially motivate consumers involved in the recycling of items.

Specifically: Participants in the event will receive a RecycleBank recycling bin with an RFID tag embedded in it. Participants will place newspapers, cans, glass bottles, plastic containers and other recyclables in the bin and then recycle them. The box is placed on the side of the road waiting for recycling. The back of the recycling vehicle of Kraft is equipped with an RFID tag detection device. When the RecycleBank recycling bin is detected, it is automatically lifted and placed in the car. The weight of the recovered item is determined by the weighing device. Then, the weight of the recovered item is automatically recorded. The user of the recycling bin. Based on the records on the RFID tag, event participants can download cash coupons or other lotteries from the Internet. The amount of cash or lottery depends on the amount of items recycled. Since its launch in Philadelphia in 2006, it has attracted wide participation from consumers.