Smart door locks are already familiar to the public. In addition to the convenient unlocking experience, their safety performance is also the focus of attention. So is the smart door lock safe? Are those Internet brand products trustworthy? Is the smart door lock safe?

As the first line of defense for family security, door locks have always been the focus of public attention. So how is the safety of the door lock judged?

Lock Cylinder

The most important part is the lock cylinder. According to national standards, the lock cylinder is divided into three levels: A, B, and C. The safety level is gradually increased from A to C.

From the figure, we can also see that the requirements of the C-level lock core in anti-drilling, anti-saw, anti-pull, anti-impact, and anti-technical opening are significantly higher than those of the A and B levels, which means that the C-level lock core needs It takes longer to turn on.

Here I need to make it clear to everyone: any lock cylinder will be opened, but the difficulty of opening the C level is relatively higher, thereby reducing the risk of theft, and the thief does not have that long time to unlock.

In addition, there are many people on the Internet claiming that the C-level lock cylinder is useless, and professionals still unlock it quickly. Please note that professional unlocking personnel not only need to have proficient technology but also need to have unlocking qualifications and be registered with the Public Security Bureau. Therefore, those cases of unlocking in seconds on the Internet cannot be regarded as a normal phenomenon.

All in all, it is enough to directly choose the C level in the selection of the lock cylinder.

Panel and lock body

In addition to the lock cylinder, the main thing we need is the lock body and panel. The material of the lock body and panel of some smart door locks is poor and it is easy to be violently picked.

At present, most of the products are zinc alloy panels, and the safety performance and durability are guaranteed. The lock body is mainly made of stainless steel. The overall anti-pry performance is still very good, and smart door locks are generally equipped with picking locks. Alarm, once violent lock picking is detected, a notification will be pushed to the user's mobile phone.

Fingerprint recognition module

Many people worry that fingerprint recognition is insecure. A thief can unlock it by making a fingerprint model. Is this true? fake.

Currently, the commonly used fingerprint recognition modules are mainly divided into two types:

The optical fingerprint module mainly uses light reflection imaging to identify user fingerprints; capacitive fingerprints (semiconductor fingerprints) use silicon wafers and conductive subcutaneous electrolytes to form an electric field. The fluctuations of fingerprints will cause a pressure difference between the two. Different changes can realize accurate fingerprint measurement.

The anti-counterfeiting performance of the optical fingerprint lock in these two solutions is relatively weak, and it may be unlocked by fingerprint film, fake fingers, and other tools. However, many brands are now undergoing technological upgrades, and the protection performance has been greatly enhanced; the anti-counterfeiting of semiconductor fingerprint locks performance is much better and only recognizes live fingerprints, fake fingers are not good, and the recognition accuracy and sensitivity are also very good.

In summary, the current market is dominated by semiconductor fingerprint recognition, which is already a mature design, so you don't need to worry too much about security. Fingerprint access control lock even with optical fingerprint unlocking, many brands have now upgraded their designs, which can be done without fake fingerprint film.

Chip Module

In addition to the above content, some friends may know the "little black box". The small black box mainly interferes with the chip through violence, causing the chip to restart forcibly to achieve the purpose of opening the door.

The current smart door locks are basically equipped with a voltage regulator module on the circuit board to prevent current overload caused by such violent interference. In addition, they will also be equipped with an anti-interference door lock panel to prevent the possibility of unlocking the small black box.

Society is always moving forward, and we must also actively embrace new things. The penetration rate of smart door locks is gradually increasing, and Internet brands have also made considerable contributions to it, so there is no need for everyone to be prejudiced.

The current smart door locks are actually relatively mature. The difference lies in the linkage and compatibility of different platforms. If you just want a convenient experience, then almost all smart door locks can be satisfied. If you want to build a smart home, Then S4A is more recommended.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED