Not only can you swipe the bus card, but also the NFC function of the mobile phone has these uses
At present, the Near Field Communication (NFC) technology in mobile phones has gradually become an indispensable part of our daily lives. However, most people's perception of NFC may only stay in the application scenario of replacing physical bus cards with mobile phones for fast payment, in fact, the functions of NFC are far more powerful and extensive than we think.
1 What is NFC?
First of all, to put it simply, NFC is a short-range wireless communication technology, and its working range is only about 10 centimeters. The mobile phone has a built-in special "NFC coil", through which the NFC function is realized, mainly including key components such as contactless front-end modules, RF antennas and security areas. In a magical way, NFC is able to turn data into a signal, which can then be exchanged with the reader through this coil.
Just like the "one-touch transsion" function of Huawei mobile phones, or the "Android Beam" on Android mobile phones, they all make use of the characteristics of NFC point-to-point transmission; at the same time, NFC also has a reader mode and a card simulation mode, in which the card simulation mode allows your mobile phone to play the role of an access control card and a bank card, which greatly expands the use scenarios of mobile phones.
The picture comes from Huawei's official website
NFC now plays an important role in mobile phones, especially in the four major areas of electronic payment, transportation cards, access control and authentication.
For example, with NFC, users can easily use their mobile phones to complete mobile payments, bus and subway rides, community access and office authentication. NFC payments not only reduce dependence on the network, but also make them easier to operate. The support for the public transport system in many places across the country and the convenient access card simulation function avoids the trouble caused by forgetting to bring the physical card. In addition, eID uses cryptographic technology and intelligent security chips to achieve online remote identity verification while ensuring information security, making life more convenient and efficient.
Looking ahead, NFC technology will continue to improve existing capabilities and make breakthroughs in wireless charging. According to the WLC wireless charging specification proposed by the NFC Forum, NFC may also be transformed into a small wireless charger in the future, which can provide up to 1W wireless charging for smart watches, headphones and other devices with just a light tap. With the advancement of technology, the NFC coil may also be combined with the wireless charging coil, which not only saves the internal space of the mobile phone, but also meets more functional requirements.
In short, NFC, as a highly private and accurate way to transmit information, plays an indispensable role in the era of the Internet of Things. When wireless charging is also integrated, there is good reason to believe that NFC will open up more innovative applications and continue to drive seamless connectivity and interaction between smart devices.
2 In addition to swiping the bus, what else can NFC do?
1. Democratization of mobile payments
NFC payment has expanded from public transportation to various consumption scenarios in daily life, such as supermarkets, convenience stores, restaurants, etc., which can be completed quickly and securely with just a tap on the mobile phone and payment collection device, and is also widely used in public service projects in smart cities, such as public utility payment and parking fee payment.
The picture comes from the Internet
2. Fast interconnection between smart devices
With NFC, two phones that support this feature can instantly exchange pictures, music, videos, contact information, and apps with just one touch, without the need for a complicated Bluetooth or Wi-Fi pairing process. Similarly, in the smart home environment, NFC simplifies the configuration, connection, and control steps of smart home appliances, greatly improving the user experience.
3. Secure identity and access control
With the increasing importance of security, the application of NFC technology in identity authentication and access control systems is becoming more and more common. Enterprise employees can use mobile phones as company access control cards, and residential communities also use NFC to open doors with mobile phones, which improves residential security. Large event venues and public places such as stadiums and libraries have also begun to use NFC to verify electronic tickets, improving the efficiency of admission.
The picture comes from the Internet
4. The Internet of Things and a new way to play with label reading
NFC tags are widely used in various industries because of their small size and practicality. Consumers can scan the electronic tag on the product through the NFC function of the mobile phone, obtain detailed product information, distinguish the authenticity, and participate in various interactive marketing activities of the merchant. In the library borrowing service, readers can easily borrow and return books by themselves, which greatly improves the reading experience.
3 Write at the end
In general, the NFC function of mobile phones has surpassed the traditional use of public transport card payment, and it has shown strong practicality and innovation ability in many fields, significantly improving the convenience and richness of life. With the continuous evolution of NFC technology and the exploration of new application scenarios, it will play an increasingly important role in the process of social intelligence in the future, and strongly help us build a more intelligent living environment.
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