Introduction

When entering or leaving a residential area or office building, the access card on the mobile phone will be used from time to time. However, while we always need to use it, we may also find that we may leave our mobile phone at home or forget to bring the access card.

This is very inconvenient for someone who needs to go in and out of these places frequently. However, if you copy the access card to your mobile phone, you can open the door directly with your mobile phone, so you won't forget to bring the access card.

But now we all have mobile phones. In addition to installing various apps, our phones have a variety of functions, but they also have corresponding hardware to match them.

Among these functions, there is one that can copy the access card, which is NFC, which is commonly known as the near-field communication function. This function can easily copy the access card to the mobile phone, and you no longer have to worry about forgetting to bring it.

What is NFC?

The full name of NFC is Near Field Communication, which, as the name suggests, is a near field communication technology.

NFC technology is a technical standard launched in 2003, mainly to solve the problem of exchanging data between objects, making data exchange between objects simpler and more direct.

Therefore, NFC is a wireless contactless communication technology. Data can be exchanged directly by touching NFC devices, so NFC is generally called "touch and pay".

The popularity of NFC has made our lives more convenient, and people will also figure out how to use its functions in their lives.

Therefore, the functions of NFC are gradually being developed and applied to life.

The NFC function was later applied to mobile phones and can be used in this way. The main functions of NFC on mobile phones are card payment and access card copying.

The NFC function on the mobile phone is mainly realized by putting the mobile phone and the access card together. The mobile phone will extract the access card information and store it.

Since the functions of NFC vary on mobile phones of different brands, some mobile phones may not have this function.

When we put the mobile phone and the access card together, the automatic recognition function of the mobile phone will be displayed. Just tap to turn it on, and the information of the access card will be extracted and stored.

The settings of the NFC function of mobile phones of different brands will be different. Some mobile phones must turn on the NFC switch in the settings before they can be automatically recognized. This depends on the brand of the mobile phone you are using.

After completing this step, we open the NFC application on the mobile phone, and the system will display "Select the access card to copy". Just follow the prompts.

After this step, the next step is to set up quick card selection. In fact, setting up quick card selection is optional, and you can swipe the card without setting it up.

This setting is just to improve our card swiping efficiency.

Open the NFC application on your phone, select the copied access card, click "Card Selection Settings", and then click "Add Quick Card Selection" to complete the settings.

This way, you only need to tap once to access the door in the future, without the need for manual selection.

The function of NFC is not only to copy access control cards. We will encounter various scenarios in our lives that require access control cards. For example, when entering a residential area, as well as the access control systems of hospitals, schools, hotels, etc., some of these places require card swiping. Mobile phones can also copy the access control cards of these places.

In addition to these places, another very common place is the workplace. Everyone needs to swipe their card when they go to work. The access control system at the workplace basically requires swiping cards to enter and exit, so the access control at the workplace can also be copied to the mobile phone.

As long as the access control system uses the NFC protocol, it can be copied, because NFC itself is a protocol, and the access control system mobile phone that conforms to this protocol standard can copy the access control card.

The access control at the workplace generally uses the NFC protocol, so there is no problem with copying the access control card.

Nowadays, we use various electrical appliances in our lives, especially air conditioners, which can be said to be a must-have appliance in our lives in summer.

The air conditioner has a remote control, but if the remote control is broken or not with you, it will become very troublesome.

In the past, air conditioners could not be controlled by mobile phones, but now they can be controlled using NFC technology.

As long as it is connected to the mobile phone via NFC technology, you can directly use the mobile phone to control the opening of the air conditioner.

What other functions does NFC have?

NFC is more than just a simple "touch and go" function.

There are many places in life and work where mobile devices are needed. It can be said that NFC is used almost everywhere.

In addition to copying the access card to the mobile phone, this function can be used as long as you have mobile.

In life, in addition to using access cards when we are working, we may also go out to eat in our spare time, so access cards are needed for restaurants.

The nature of the access cards used in restaurants and workplaces is the same. As long as the access control system uses the NFC protocol, the access cards can be copied to the mobile phone.

Therefore, in restaurants, as long as it is an NFC protocol access control system, the door can be opened easily by just “touching” the phone.

There are also some entertainment aspects in life, such as playing games, which require recharging. To recharge, you only need a card with a stored value function, such as a bank card, bank card, Alipay, etc.

Among them, Alipay can be recharged through the NFC "touch and pay" method, and NFC "touch and pay" can also be used to receive payments.

This payment method is very common in residential communities. In the past, when charging fees in the community, the toll collector at the door collected money and entered the information, which was very cumbersome. Now you only need to "touch" to pay directly.

In some places, you will encounter the requirement of scanning codes when riding the bus.

NFC can also be used to scan the code to take the bus. As a wireless communication technology, NFC is also widely used in the transportation field.

On the bus, we just need to place the mobile phone on the "card swiping" device within the recognition range, and the mobile phone will store the information interaction. It can also realize the function of scanning the code to board the bus by "touching".

The convenience brought by NFC function.

The functions that NFC's "touch and pay" can achieve are not just as simple as "touch and pay". People have also been thinking about how to use its functions in other aspects based on NFC technology.

For example, in addition to the "touch and pay" method, you can also connect to home appliances. Mobile phones can connect to home appliances through NFC. First, you need to turn on the NFC function on the mobile phone, and then place the mobile phone close to the NFC module of the home appliance to connect. After the connection, you can control the switches of home appliances through the mobile phone.

This technology will be widely used in homes, and the level of intelligence of homes will be greatly improved.

In addition to controlling home appliances with mobile phones, there are other home appliances that can also be controlled, such as smart door locks.

The most important place in a home is the front door, and the most important thing about this place is safety.

The security of your home door is essential. If your home door is not secure, your belongings in the home will not be safe.

Smart door locks are realized by applying NFC's "touch and go" feature to the door.

You just need to bring your phone close to the NFC module on the door and the door will open automatically. It's very convenient.

In addition, the mobile phone can also control curtains, lights, etc. with a "touch", which makes the home very intelligent and life very convenient.

The "touch and pay" function of NFC is applied in entertainment, catering, transportation and other fields in life, which shows that the "touch and pay" function of NFC is very powerful.

As a new type of near-field communication technology, NFC actually has great potential risks.

As NFC technology continues to develop, hacker technology is also developing. Hackers can use NFC to steal people's information and even conduct fraudulent card transactions, so you must remember to be safe when using NFC technology.

When using NFC payment on the street, be sure to prevent others from touching your phone, otherwise your information may be stolen and your money may be damaged.

Conclusion

NFC's "touch and pay" technology is actually very convenient. While we enjoy the convenience, we must also pay attention to its security and not let our money be lost.

With the advancement of NFC technology, many devices will be able to use NFC technology, and "touch and pay" will become more convenient.

While enjoying the convenience, we must also pay attention to safety and guard against hackers stealing information and fraudulent use of the card.

Disclaimer: The above content and information are all from the Internet. The author of this article does not intend to target or insinuate any real country, political system, organization, race, or individual. The relevant data and theories are verified from online information. The above content does not mean that the author agrees with the laws, rules, opinions, and behaviors in the article, nor is he responsible for the authenticity of the relevant information. The author of this article is not responsible for any issues arising from the above or related issues, and does not bear any direct or indirect legal liability.