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技術社區[雲棲]
NFC and Contactless Technologies
NFC and Contactless Technologies
NFC technology enables simple and safe two-way interactions between electronic devices,（NFC技術能夠使兩個電子設備簡單安全的實現無接觸交互） allowing consumers to perform contactless transactions,（允許用戶進行無接觸操作） access digital content, and connect electronic devices with a single touch（通過近距離電磁感應實現數字通信）. NFC complements many popular consumer level wireless technologies（滿足現代用戶無線消費需求）, by utilizing the key elements in existing standards for contactless card technology（基於目前標準的無接觸技術標準） (ISO/IEC 14443 A&B and JIS-X 6319-4). NFC can be compatible with existing contactless card infrastructure and it enables a consumer to utilize one device across different systems.（NFC兼容現有的非接觸設備，可以在不同係統使用）
Extending the capability of contactless card technology（無接觸技術的更多功能）, NFC also enables devices to share information at a distance that is less than 4 centimeters with a maximum communication speed of 424 kbps（4厘米內的最高424kb信息傳送）. Users can share business cards（商用卡）, make transactions, access information from a smart poster or provide credentials for access control systems with a simple touch.（通過證書或者海報宣傳來吸引用戶來完成交易）
NFC’s bidirectional communication ability is ideal for establishing connections with other technologies by the simplicity of touch.
(NFC雙向通訊功能是建立與其他係統簡單的方式) For example, if a user wants to connect a mobile device to a stereo system to play music（比如用戶想要連接手機播放音樂）, he can simply touch the device to the stereo’s NFC touchpoint and the devices will negotiate the best wireless technology to use.（那麼隻要很簡單的接觸NFC的感應距離，這便是最好的無線技術應用）
What does this mean for the end user? Easy connections, quick transactions, and simple data sharing.
對於人們的好處是什麼呢？更加便捷的通信，快速的處理，和簡單的信息分享。
NFC與RFID區別
NFC as Technology Enabler
NFC creates a new and universal interface to existing devices through simple touch interaction. NFC bridges gaps between existing technologies and devices to enable new applications/services (enabling connections from real to virtual, connections to physical/real world).
NFC Enables One-Touch Setup of Wi-Fi and Bluetooth
NFC is able to replace the pairing of Bluetooth-enabled devices, or the configuration of a Wi-Fi network through PINs and keys, by simply touching the two devices to be paired or connected to the network, or by touching the device to a tag. The gain in simplicity of use is substantial while the level of confidence is exactly similar.
NFC Enables Electronic Door Locks
For doorlocks that are equipped with an actuator and a short range contactless reader, a simple upgrade may allow NFC devices to substitute for contactless cards. Advantages, for example in hospitality, are the possibility to remotely send the access rights in advance to the user’s handset, and the coupling with other applications such as booking, and skipping the check-in phase. In the example of access control, one can centrally manage the rights in real time without physical delivery of cards.
NFC and Healthcare
Personal health monitors recording a human’s vital data can be read by an NFC reader/writer, which for example might be a persons mobile phone, by simply touching the reader to the health device. The physical proximity that NFC requires guarantees the operator has the right understanding of which data is read at what time, thus greatly reducing the chance of a human error and, by the simplicity of instructions, allows patients of every age to monitor their health status autonomously.
And once a standardized format and secure storage for medical records and history is available, as well as generally accepted procedures to access these data, NFC will be a natural way to interact between a portable device held by the user and a medical system.
NFC Devices Enable Data Exchange
NFC enables users to quickly and easily transfer information between devices with a simple touch. Whether it be an exchange of business cards, a quick transaction, or downloading a coupon, the proximity ensures that the information shared is the information you want to share.
NFC Means Proximity
All NFC transactions take place within a very small area, anywhere from a touch to 4 centimeters. This means that you can’t unknowingly purchase something because you walk next to a smart poster.
https://nfc-forum.org/what-is-nfc/about-the-technology/
最後更新：2017-04-03 12:53:59