User's Manual

communication mode. Compared with RFID, NFC has the characteristics of close distance,
high bandwidth, low energy consumption and high security.
Third, the application fields are different. NFC is more used in the field of consumer electronic
devices, and plays a huge role in the fields of access control, public transport, mobile payment,
etc; RFID is better at long-distance identification and is more widely used in production, logistics,
tracking and asset management.
Comparison between NFC and Bluetooth
NFC and Bluetooth are both short-range communication technologies. Compared with
Bluetooth, which has been integrated into mobile phones for a long time and has been
popularized, NFC has only been integrated into mobile phones in recent years, and so far it
has only been integrated into a few mobile phones.
First, the establishment time is different. The NFC communication setup procedure is simple,
and the communication establishment time is very short, only about 0.1s; However, the
Bluetooth communication setup procedure is relatively complex, and the communication
establishment time is long, which takes about 6S.
Second, the transmission distance is different. The NFC transmission distance is only 10cm,
while the Bluetooth transmission distance can reach 10m. However, NFC is slightly better than
Bluetooth in terms of transmission power consumption and security.
Third, the transmission speed and operating frequency are different. The NFC operating
frequency is 13.56MHz, and the maximum transmission speed is 424 kbit/s, while the Bluetooth
operating frequency is 2.4GHz, and the transmission speed can reach 2.1 mbit/s.
Comparison between NFC and infrared
Compared with infrared transmission, NFC has the same transmission distance, but faster than
infrared transmission. The maximum transmission speed of NFC can reach 424 kbit/s, while
the infrared transmission speed is about 100kbit/s. The establishment time of NFC is slightly
faster than that of infrared. The establishment time of NFC is 0.1s, and the establishment time
of infrared transmission is 0.5s. Infrared transmission must be strictly aligned to transmit data,
and there must be no obstacles in the middle, while NFC has no such restrictions; In addition,
NFC is safer and more reliable than infrared.
 NFC apply into Car
NFC is the abbreviation of near field communication, which means the short-range wireless
communication technology of automobile. RFID is the abbreviation of radio frequency
identification, which means radio frequency identification, also known as electronic tag. Nfc/rfid
car key is a BMW digital key using NFC communication technology. The car can be unlocked
and locked through the smart phone in hand. The owner does not need to carry the traditional