What is NFC?
2024-01-23What is NFC?
NFC stands for Near Field Communication, which is a wireless communication technology that allows devices to exchange data over short distances without contact. It is based on Radio Frequency Identification (RFID) technology and operates at 13.56 MHz. NFC technology utilizes the principle of electromagnetic induction to enable two NFC devices to communicate without contact.
The working distance of NFC is usually within a few centimeters, and devices need to be close or touched to achieve data transmission. NFC devices are generally divided into two types: active devices and passive devices. Active devices can send information to passive devices, and passive devices passively receive and process information.
What can NFC be used for?
NFC has a wide range of applications. Here are a few common uses:
Mobile payment: NFC is widely used for mobile payment, such as using a mobile phone to pay with a card or obtain electronic tickets or transportation cards.
Information sharing: By touching or approaching two NFC devices, you can quickly share text, pictures, videos and other multimedia information.
Electronic access control and smart locks: NFC technology can be used in electronic access control and smart lock systems, allowing users to use mobile phones or IC cards to unlock access control devices.
Public transportation ticketing: Public transportation systems in many cities use NFC technology, and passengers can use their mobile phones or IC cards to pay by swiping their cards.
Information tags: NFC tags can be embedded in products, posters or signs. When users approach, they can obtain relevant information through the NFC device, such as product introductions, advertisements, etc.
Healthcare: NFC is used in the medical field and can be used to transmit medical records, provide personalized medical care to patients, etc.
In general, NFC technology provides a simple, convenient and secure data transmission method, and is widely used in payment, information sharing, access control, ticketing and other fields.
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