NFC technology powerful IoT development prospects are expected
In today's era, mobile phones are the personal belongings of people's daily life. It even gradually replaces some life tools in people's daily life, such as keys, access cards, credit cards, tickets, etc., and through NFC technology, the functions of mobile phones are increasingly powerful. .
4. Contact browsing, a built-in NFC device can seamlessly and conveniently browse information stored in another NFC-enabled device.
NFC (Near Field Communication) is not a new technology, but more and more related issues have recently been applied. Especially when the topic of third-party payment methods has been heated up, everyone is suddenly concerned about mobile phones. In the case of non-contact machines, the purpose of mutual sensing and payment is to use NFC technology. The most typical example is the bus card. What is NFC technology? Where is the application level?
What is the reason for the development of NFC? NFC is based on the integration of RFID (Radio Frequency Identification) and interconnection technology. This is the development and innovation of non-contact technology and RFID technology. It is a short-range wireless communication technology standard.
The basic applications of NFC technology can be divided into the following four categories:
1. Contact, such as access control, tickets and tickets, users only need to carry a mobile device with a ticket or gate code to access the reading device.
2. Contact confirmation, such as mobile payment, the user confirms the transaction by entering a password or simply accepting the transaction.
3. Contact connection, such as connecting two built-in NFC devices for point-to-point data transmission, such as downloading music, picture transfer and synchronous exchange of communication books;
4. Contact browsing, a built-in NFC device can 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, because mobile phones are already indispensable for modern people, applications that extend from mobile phones equipped with NFC functions are increasingly coming. The more extensive. In terms of intelligent building category, what are the current applications of NFC on the access control system?
Michael WAI, identiv's Asia Pacific sales manager, said that if a technology is to be adopted on a large scale, the technology needs to be digitized as much as possible to be distributed or remotely downloaded via the (mobile) Internet, thereby overcoming the costs and barriers of its logistics. . With the trend of BYOD (Bring Your Own Device), we are seeing more and more companies let employees use their personal mobile phones or portable devices to handle official duties, such as email, document signing, workflow sign-off and employees. Applications such as authentication with the corporate security system.
In the case of access control, digitizing the access card (becoming a digital certificate) can be easily and securely sent to the designated user's mobile phone or other mobile device, and then manage the life cycle of the digital certificate through the mobile network and the cloud. For example, if a temporary staff member needs to enter or leave the building today, the management unit can send a “temporary†access control certificate to these staff members. When the set time is up, the access control certificate will be invalid, and the security will be undoubted.
With the popularity of NFC, digital door cards/credentials can be preloaded or downloaded to mobile phones, or only attached to mobile phones or wallets with an NFC tag. When users open the door with NFC phones, they can simply touch them with their mobile phones. The door is like a traditional door card. At present, many European restaurants have adopted NFC door locks. The hotel will send the NFC key to the guest's mobile phone before the check-in, and the guest will be able to open the door with his mobile phone directly to the designated room on the scheduled date. Go to the counter check-in.
We can even foresee that in the near future, NFC will make the door disappear on the door. Users only need to touch the NFC tag on the door through the mobile phone, and the system will put the door position (or ID) and user credentials and visitors. The location is combined and used as a request to open the door to the access control system.
In addition, the administrator of the access control system can also change the function card of different functions at any time through the NFC mobile phone, and send different levels of instructions to the access control system under different crisis management conditions to lock the access control or release area of ​​a certain area. Access control to guide the crowd.
What kind of development trend will NFC have in the future?
NFC has been slowly integrated into a part of the IOT (Internet Of Things) world by an independent technology and application. The Internet of Things refers to everything that is connected to the network, from smart thermostats, garage doors, to toothbrushes, heartbeat sensors, and even furniture and light bulbs in the house.
The Internet of Things system collects data such as habits and usage patterns related to users, connects to an application (APP), and provides data analysis to the cloud or big data server to improve the quality of life of users and even provide products. Use and consumption information to manufacturers to predict consumer demand and improve product quality.
As the initiator of the start and connection, NFC plays an important role in helping the device or sensor to instantly pair with the Bluetooth or WIFI device of the mobile device. Of course, the most important thing about NFC is the payment features, such as Google Wallet and Apple Pay. However, NFC's potential problems and challenges are how to improve its security without reducing or affecting the user experience.
As any technology matures, the chances we actually see it will be less, because it will be embedded in different technologies and applications, and then everywhere.
What is the difference between NFC and Bluetooth technology in application?
NFC and Bluetooth have no competition, but have complementary functions. Although the Bluetooth pairing function is very mature, and the Android and Apple iOS standards have been unified, because the Bluetooth functions in different mobile phones or devices are not the same, sometimes it is still necessary to spend dozens of seconds to successfully pair.
NFC can instantly pair the phone with other devices or provide real-time configuration (Configure) or connection (such as website, router, wifi) with a simple touch. Michael WAI manager said that NFC may become a default mode in the future. , only turned off in flight mode to enhance the user experience.
NFC can also provide a reliable and credible interaction when it needs to be recognized and approved by users. The action of touching is actually used to help users provide an authorization to execute commands, such as paying, opening, and exchanging information... Action or process. Even Bluetooth can achieve the above functions, but lacks the user's confirmation action, especially in the security-related and payment-based applications, which will cause users to have security concerns.
In simple terms, NFC is a good choice if you need fast, user confirmation, and less data transfer; if you need a longer distance (50 cm to 100 cm), and the data transmission is more frequent, users in the information exchange When the demand for participation is low, Bluetooth becomes an inevitable choice.
Regardless of the technology used, the biggest challenge is often to think about how to improve the experience and bring real convenience to users. If users change their habits to accommodate a certain technology, they will encounter certain obstacles. Conversely, if technology can bring more convenient and better user experience, it will be able to do more with less, whether it is NFC, Bluetooth, Internet of Things or access control. Technology is the ultimate goal.
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