NFC features:
1. The chip has the security encryption function, which can effectively protect the internal data of the chip
2. The chip has a one-time variability (OTP) memory area, and each block has a locking mechanism
3. Optional 32-bit password for read / write or write access, with optional password reset counter function
Application scope:
NFC (
near field communication) smart tag adopts short-range wireless communication technology, which is a non-contact identification and interconnection technology. NFC tags can be used for mobile terminals. Consumer electronics PC and intelligent control tools conduct short-range wireless communication. Because of the natural security of near-field communication, NFC has a broad application prospect in the field of mobile payment. It is widely used in mobile payment, consumer electronics, mobile terminals, communication equipment, etc.
NFC technology introduction:
NFC is evolved from non-contact radio frequency identification technology (RFID) and is backward compatible with RFID. It was first developed by Philips Nokia and Sony are mainly used for mobile phones and other handheld devices. Because of the natural security of near-field communication, NFC has great application prospects in mobile payment and other fields. NFC contactless card reader Non contact cards and peer-to-peer functions are integrated into a single chip, creating countless new opportunities for consumers' lifestyles. This is an open interface platform, which can rapidly develop wireless networks. It is also a virtual connector, serving the current cellular network, Bluetooth and wireless devices.
Mobile phones with NFC technology can be directly used for electronic consumption, downloading coupons and e-tickets, and can also be used as membership cards for stores and tourist attractions. NFC customers can easily swipe NFC mobile phones and enjoy the convenience brought by wireless payment. NFC will play a huge role in the fields of access control, public transportation, mobile payment and so on.
NFC, also known as short-range wireless communication, is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission (within 10 cm) and data exchange between electronic products. "Just touch" allows data to be exchanged between different electronic devices. Exchange data with non-contact electronic devices. Unlike IC cards, NFC can conduct two-way communication. As long as it is supported. NFC products and IC cards can read or write data. It can also communicate between portable goods such as mobile phones.
RFID features:
1. Support protocol: ISO / iec14443-3typea; ISO/IEC18092andNFCForum? Type2。
2. Output power: 13.56 ± 0.07mhz
3. Reading / writing spacing: 1-100cm (depending on the working environment and reader / writer model)
4. Erasable frequency: 100000 times
5. Service life: 10 years.
6. Working temperature: - 20-500 ℃
RFID Application case:
Self adhesive labels can be made into different specifications, and various patterns can be coded and printed on the surface. These RFID tags are widely used in the fields of production line or warehouse logistics, circulation management, production line automation, warehousing management, railway transportation supervision, civil aviation luggage, express bags, book and document management, and management of mandatory inspection commodities (such as pressure vessels).
For example, a large number of dry adhesive labels are used for various products in the shopping center. The staff only need to read the contents on the RFID label when checking various information on the shelf, such as the expiration date; For example, if there is a problem with the goods in the store, find the warehouse or other stages, and who is the person in charge. You can only read the RFID tag on the product. This RFID tag greatly reduces the workload of personnel, better manages the warehouse, improves the work efficiency, and standardizes the operation of the mall.
What is NFC
The technology evolved from non - contact radio frequency identification (RFID) and Philips semiconductor (now NXP semiconductor enterprise) Nokia and Sony jointly developed RFID and Internet technology based on Nokia and Sony. Near field communication. (nearfield communication, NFC) short-range high-frequency radio technology, operating within 20 cm at 13.56MHz frequency. The transmission rate is 106kbit / s, 212kbit / s or 424kbit / s. NFC selects active and passive.
Working mode
Card mode: this mode is actually equivalent to an IC card with RFID technology. It can replace many IC credit cards (including credit cards) in shopping malls. Bus cards Access control, tickets, tickets, etc. In this way, there is a great advantage, that is, the card is powered by the RF domain of the contactless card reader. Even if the host device (such as mobile phone) is not powered, it can work.
Peer to peer (P2P) mode: this mode is similar to infrared ray and is suitable for data exchange. However, the transmission distance is short, the transmission establishment speed is fast, the transmission speed is fast, and the power consumption is low (Bluetooth is also similar). There will be two NFC enabled devices connected to realize point-to-point data transmission, such as downloading music, exchanging photos or synchronizing device address book. Therefore, by using. NFC, digital cameras and other devices. PDA. Materials or services can be exchanged between computers and mobile phones.
Card reader mode: as a non-contact card reader, such as reading relevant information from posters or electronic labels of exhibition information.
What is NFC And RFID?
