Mobile phones are essential personal belongings, gradually replacing the original objects of life, including keys, access control cards, credit cards, tickets ... ... and so on. How can NFC technology be used in human life through portable devices? Near Field Communication (NFC) is actually not a new technology, but recent application-related issues are more and more, especially the topic of third-party payment has been heated up, occasionally we are suddenly concerned that mobile phones In the case of non-contact machines to mutual induction and achieve the purpose of payment, is the use of NFC technology, the most typical example is the bus card. What is the NFC technology and its application level where? What is the reason for the development of NFC? NFC evolved from the combination of Radio Frequency Identification (RFID) and Internet technology, which is a development from the non-contact technology and RFID technology. It is a short Distance wireless communication technology standard. The basic application of NFC technology can be divided into the following four categories: Access control, such as access control, tickets and tickets, allows users to bring their mobile device with a ticket or door code close to the reader. Confirm contact, such as mobile payment, the user confirm the transaction by entering the password or just accepting the transaction. ? Contact connection, such as the two built-in NFC device connected to peer-to-peer data transmission, such as downloading music, pictures, and synchronous exchange of communication books, etc .; • Touch browsing, a built-in NFC device to seamlessly and conveniently browse information stored in another NFC-enabled device. At present, NFC is widely used in mobile phones. It is not new to use mobile phones to sense other devices to achieve wireless transmission. However, since mobile phones are an indispensable item for modern people, more and more applications extend from mobile phones equipped with NFC functions The more extensive. Talk about the category of intelligent buildings, NFC applications currently on the access control system what? The application of NFC technology is ubiquitous and the future development of the Internet of Things is worth looking forward to Michael WAI, Asia Pacific Sales Manager at identiv, said that to embrace a technology on a large scale, the technology needs to be digitized as much as possible to distribute or remotely download over the (mobile) Internet to overcome the cost and barrier of its logistics . With the trend of BYOD (Bring Your Own Device), we see more and more enterprises let employees use personal mobile phones or carry-on devices to handle business affairs such as email, document signing, workflow approval and staffing And corporate security system between the authentication application. For access control, digitizing an access card (becoming a digital certificate) can be easily and securely sent to a designated user's cell phone or other mobile device, managing the life cycle of the digital certificate through mobile networks and the cloud, For example, if there is a temporary staff member entering and leaving the building today, the management unit may send out a "temporary" access control voucher to these staff members. When the set time has expired, the access voucher will lapse and the safety will not be questioned.