What do you mean by short-range wireless communication technology?

This technology evolved from contactless radio frequency identification (RFID) and was jointly developed by Philips Semiconductors (now NXP Semiconductors), Nokia and Sony * * *, based on RFID and internet technology. Near Field Communication (NFC) is a short-range high-frequency radio technology, which works within 20 cm, with a frequency of 13.56MHz and a transmission speed of 106 Kbit/ s, 2 12 Kbit/ s or 424 kbit/s. At present, The near field communication has passed the ISO/IEC IS 18092 international standard, ECMA-340 standard and ETSI TS 102 190 standard. NFC adopts active and passive reading modes.

NFC near field communication technology is developed from the integration of contactless radio frequency identification (RFID) and internet technology. It integrates the functions of sensor card reader, sensor card and point-to-point on one chip, and can identify and exchange data with compatible devices in a short distance. The working frequency is 13.56MHz, but users who use this mobile payment scheme must change their dedicated mobile phones. This technology is widely used in Japan and South Korea. Mobile phone users can travel all over the country with mobile phones with payment function: their mobile phones can be used as airport boarding verification, building access keys, transportation cards, credit cards, payment cards and so on.