Upgrade smart door lock? Let’s figure out 3 questions first

■Although it is convenient to unlock and open the door with your mobile phone, it also has security risks. Fingerprint unlocking is generally divided into two types: optical recognition and semiconductor recognition.

■Smart door locks have entered more and more families.

■Although it is convenient to unlock and open the door with your mobile phone, it also has security risks.

Whether it is due to the admiration for the appearance of the home or the improvement of residential safety protection, smart doors have attracted more and more people\’s attention and are entering more and more households. family. Judging from the current market situation, only a few new residences will be equipped with smart doors for their owners, or during the renovation of new homes, new owners can directly purchase and install smart security doors. But what is most in demand and has the lowest operating cost is the modification of old security doors with smart door locks to replace the old mechanical locks. If you are eager to give it a try, don’t worry, figure out these three questions, and don’t blindly follow the trend and make impulsive purchases.

■New Express reporter Lin Chaojing

Q1 Is your door suitable for smart locks?

It depends on the condition of the old door and lock

Installation IntelligenceSmart door locks are destructive to the original door body. The original mechanical lock on the door must be removed and the door must be cut according to the existing lock body to achieve the installation and fixation of the smart door lock. Therefore, the installation of smart door locks has certain requirements on the thickness and material of the door itself. Generally speaking, smart locks can be installed on common anti-theft doors with a thickness of 40mm to 90mm. If the anti-theft door is purchased earlier and the door thickness is smaller than the normal value, such as some thin wooden doors, wrought iron doors, glass doors, etc., forcibly installing a smart lock will easily cause the door body to break. You need to explain this to the merchant and installer in advance when purchasing. Please consult with us, otherwise you may find that you cannot install it after you buy it home. In addition, some door bodies with high cost, such as imported double and double door products, require operations such as dismantling the door edges during installation and modification, and cannot be restored, so the installation of smart locks also requires caution.

In addition, the type of old mechanical locks may also limit the installation of smart door locks. For example, side locks and exterior door locks represented by Niutou locks are installed on the outside of the door body, and the smart lock body cannot be placed and the smart lock handle cannot be fixed, so it cannot be replaced with a smart lock; with a narrow door gap A self-elastic lock body that triggers the bolt and other components to lock the door may not be able to close the door after installing a smart lock. In addition, this type of lock body is special and the door body structure is relatively complex, so it is not suitable for retrofitting smart locks. Also pay attention to determine whether the old lock at home has a heaven and earth lock. You can touch the top edge of the door with your hand to see if there is a lock hole, and whether there is a lock tongue that pops out when the door lock is opened (door locked). However, although some merchants promise that their products will provide the heaven and earth lock function, they only have one type of lock body. If the original lock body in your home is larger than the smart lock body, the sky and earth hook cannot be installed.

In addition, I have to be reminded that in order to facilitate transactions, some merchants will promise buyers that smart locks can be installed on certain doors, but in fact, the original door locks will be damaged during the installation process. The safety structure causes certain damage, which is generally difficult to see from the appearance, but it leaves hidden safety hazards.

Q2 Are the more unlocking methods the better?

Too many methods may leave security risks

Most of the smart lock products currently on the market have password unlocking, There are unlocking methods such as fingerprint unlocking and even remote control unlocking. Some merchants even promote that they can open the door by swiping access cards, bus cards and other cards. But for anti-theft doors used to protect the safety of family members and property, are the more unlocking methods really better? Take smart locks that can be unlocked through access cards, bus cards and other cards, as an example, some people in the industry It sounds very convenient, but the safety factor is questionable. Because whenever a card is used to open the door, there is a risk that the card information will be copied. A small replicator is enough to read the magnetic card information. Even the encrypted IC card can be cracked and copied, but it may take a little longer.

There are also smart door locks that support remote unlocking. Although they can indeed bring a lot of convenience, the risks are obvious. Generally, remote unlocking relies on mobile phones, so once the mobile phone is lost,The security of your home is at stake, just like losing your keys. At the same time, remote unlocking may be misoperated by children or the elderly, which may also bring safety risks. Therefore, when purchasing smart door locks, just make sure the functions are usable, and choose based on the actual situation and needs of family members. Don’t be greedy for novelty or fun, and risk family security issues.

As for fingerprint unlocking, some merchants advertise that the door lock can store 100 types of fingerprints, while others advertise only dozens of types. But don’t easily believe that there are huge differences between the two. Just like some mobile phones that support fingerprint unlocking, recording fingerprints may require multiple presses. It is possible that these door lock products that claim to be able to store 100 types of fingerprints It is calculated based on the number of presses during the fingerprint entry process, and dozens of possibilities are calculated by the final number of entered fingerprints.

Q3 How to initially judge whether a smart door lock is reliable?

Ask a few more questions to test it out

After all, smart door locks are not reliable for most people. Although it is still a new thing, it is very important to avoid being \”fooled\” by merchants when purchasing. Sometimes, just asking a few simple questions can test out how reliable a product is. If it is a fingerprint lock, you can ask the merchant whether the fingerprint chip is optical or biometric (semiconductor) recognition. Through the other party\’s answer, we can basically judge the status of the door lock sold in the industry. Because in the current market, semiconductor fingerprint recognition has become a major trend. It takes up little space, supports live identification, and has a higher recognition rate. It is favored by many smart device companies. Optical recognition has been applied earlier and has lower cost. However, it has not been widely used in smart devices because it takes up a lot of space, is easy to be deceived by fake fingerprints, and the recognition results are easily affected by the cleanliness of the finger surface. Currently, there are many For attendance machines and access control in offices. Even if you don’t believe what the merchant says, you can easily judge it with your naked eyes. Generally, various colors of light will be seen in the optical fingerprint recognition area, while the semiconductor fingerprint recognition area looks smaller to the naked eye, similar to the fingerprint recognition area on an iPhone.

On the other hand, you can also learn about the security performance of the door lock, such as where the door opening password information of the smart lock is stored. If you hear the term \”cloud storage\”, you may want to pay attention. Don’t think it sounds very technical and high-end, but in fact, important data such as door opening passwords should not be stored in the cloud. Only by storing it on your own door lock can you ensure the security and privacy of your home. Maximum protection. Another small detail is that many people think that smart door locks are equivalent to saying goodbye to keys, but this is not the case. According to the mandatory regulations of the Ministry of Public Security, any door lock, including fingerprint locks, password locks and other smart door locks must have a mechanical key. If there is no key, it means that the merchant\’s products do not comply with relevant regulations at all, and security is naturally more difficult to guarantee.