The price is too high
The high price of RFID from label to chip to the reader/writer and middleware, together with system deployment costs, system maintenance costs and possible market acceptance risks, severely hindered RFID market promotion.
At present, the average price of domestic readers is more than 5,000 yuan, and that of UHF readers is more than 10,000 yuan.
RFID technology has not yet fully matured and is embodied in three aspects.
One is the application of certain special products, such as liquids or metal cans, where a large number of RFID tags will not work properly.
Second, the traditional electronic labeling process is still relatively complicated. The labels need to be chemically immersed for labeling, and label failure rates are high.
Third, RFID tags and readers are directional, and signals are easily blocked by objects. Even with double labels, 3% of the tags cannot be read.
RFID has not yet formed a unified industry standard. On the technical level, the technology of RFID readers and tags has not been unified and there will be cases where they cannot be integrated. Within the industry, label communication protocols, frequency bands, and packet formats developed by different manufacturers can cause confusion and confusion in use.
Security issues and privacy protection
Once the RFID tag is close to the reader, it automatically sends out information unconditionally, and it cannot determine whether the reader is legal. Passive RFID systems do not have read/write capabilities and cannot use key authentication methods for authentication. This involves the protection of personal privacy and business security.
Although it faces difficulties, it does not need to be sad and desperate. At present, two important factors that hinder the development of RFID are price and technology. More and more manufacturers are involved in RFID, and RFID has gradually matured after long-term and rapid technological accumulation.
The improvement of system integration stability and the improvement of electronic labeling technology have helped revolutionize RFID, and the price competition and technical difficulties have drastically reduced the price of RFID-related equipment.
New Application of RFID Technology
For the application of RFID, we use it as the main means of anti-counterfeiting identification, and serve as a security tracking technology in railway safety. In public safety, we use it as the quality assurance for traceability. Recently, at the graduation ceremony of the University of Texas at Dallas, we saw a new application of RFID.
Everyone thinks that the moment of graduating from college is an important moment in life. This time is very short and precious. I hope that my family and friends can both witness for myself. The difficulty is just a few seconds. Parents may not recognize it. do it yourself.
As a result, the University’s students invented the UHF-based EPC Gen2 standard RFID technology to ensure that family members and friends are watching the graduation ceremony, or through the Internet, to let them know when their loved ones have graduated. Ceremony stage.
This was collected by an Alien ALR-9650 reader, scanning the RFID badges of each graduate lecturer. The reader wirelessly transmits information to the computer system and then projects each student's information onto the screen.
The application of this RFID technology is a success that students apply to their knowledge in practice, and opens up more space for the application of RFID technology.
The difference between RFID and NFC
Another technology that is very similar to RFID technology is NFC technology has a very good application in the current market.
NFC is developed on the basis of RFID. NFC is not much different from RFID in nature, and it is based on signal transmission between two objects with similar geographical locations.
However, there is a difference between NFC and RFID. NFC technology adds point-to-point communication functions, and can quickly establish P2P (point-to-point) wireless communication between Bluetooth devices. NFC devices find each other and establish communication connections.
The two devices of P2P communication are equal, while the two devices of RFID communication are master-slave relationships. There are still some technical details: NFC has some features such as proximity, high bandwidth, and low energy consumption compared to RFID technology.
Other specific differences include:
1. NFC is only limited to the 13.56MHz band. The RFID band has low frequencies (125KHz to 135KHz), high frequencies (13.56MHz) and UHF (860MHz to 960MHz).
2, working effective distance: NFC (less than 10cm, so it has a high security), RFID distance from a few meters to tens of meters have!
3, because the same work at 13.56MHz, NFC is compatible with the existing non-contact smart card technology, so many manufacturers and related organizations support NFC, and RFID standards are more, the complexity is more complex (it is estimated that it is impossible to unify), only Can meet the special requirements of special industries, using the appropriate technical standards!
4. Application: RFID is more widely used in production, logistics, tracking, and asset management, while NFC is playing a huge role in access control, public transportation, and mobile payment.
Another refurbishment of NFC
NFC has the characteristics of low cost, ease of use, and more intuitive, which makes it more potential in some areas - NFC can realize a variety of devices in a few centimeters by a combination of a chip, an antenna, and some software. Intra-range communications, and costs only 2 to 3 euros.
After 2005, smart phones and enhanced handheld devices using NFC chips will appear in the market. By 2009, this handheld device will account for more than half of the market. The research agency StrategyAnalyTIcs predicts that by 2011 global mobile phone-based contactless payments will exceed 36 billion U.S. dollars.
If NFC technology becomes popular, it will greatly change the way people use many electronic devices, and even change the way they use credit cards, keys, and cash.
As an emerging technology, NFC has roughly summarized the shortcomings of the poor ability of Bluetooth technology to work together.
After a few years of deficiencies in the domestic market, NFC has been consistently recognized by all parties in the market. At the same time, the NFC industry chain continues to mature, and the market environment gives NFC a good opportunity for development.
The above factors have enabled China to rapidly deploy and pilot mobile payment in 2012 and 2013, and the market scale has rapidly increased.