This content comes from @WHAT IS WORTH BUYING APP, and the opinions represent only the author’s own ｜Author: Ben, the senior doting wife and little milk dog
Creative position statement: Many people may have the idea of purchasing smart door locks ,
Whether it is just the standard equipment for a new house,
or the upgrade of your old home,
the road to decoration is long and long,
what I can do in this article is to tell the story of the smart fingerprint lock ,
By the way, share your experience.
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Hello, dear viewers, my little puppy is back~
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The table of contents of this article is as follows ：
1. Why should you buy a fingerprint lock?
1. Living standards have improved
2. Various social and life reasons
2. What are the secrets of fingerprint locks?
3. What are the functions of fingerprint locks?
1. Electronic doorbell function
2. Live fingerprint
3. NFC unlocking
4. Coercion fingerprint
5. Dummy password
6. Automatic door closing lock
7. Anti-little black box
8. Voice unlock
4. How important is the lock core and lock body?
1. Be sure to choose a C-level lock cylinder
2. The difference between Overlord lock body and ordinary lock body
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1. Why buy a fingerprint lock?
1. Living standards have improved
With the improvement of people\’s living standards, how to prevent home theft? The problem has become particularly prominent.
As you make more money, your home becomes more beautiful, and there are more high-end appliances and Moutai, so this first line of defense must not be ignored. The traditional lock structure is simple. The security is low, not to mention technical unlocking, even hard prying does not require much strength.
2. Various social and life reasons
- The old man forgot to bring the key and locked the door, unable to return home.
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- Children often lose keys because of their playfulness. If someone picks them up with ulterior motives, the consequences will be disastrous.
- If you lose two keys, you can replace them. If you lose two or more keys, you will have to replace the entire lock. Drop it, because it’s true It’s too unsafe.
- In case of low-probability emergencies such as a fire caused by forgetting to turn off the gas when going out, the fingerprint lock can be unlocked remotely, so that the property owner can promptly contact the fire department to help put out the fire.
- Elderly people. If there is an accident at home, you can also unlock the door remotely to save your life.
- You can use your foot prints to open the door at special times. Is there any internal smell?
- Lock picking reminder
- Test opening reminder
- No attempt reminder
- Door not closed reminder
- Unlocked reminder
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So a smart fingerprint lock is still necessary. The so-called \”a fingerprint lock\” Lock, hardcore unlocks new worlds. ”
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2. What are the secrets of fingerprint locks?
There are so many smart fingerprint locks, how to choose the one that suits you?
What do the various parameters of smart door locks mean, and what do these parameters represent? Let us take a look. Come to the \”Into the Science Column\”, oh, no… It\’s the \”Into the Fingerprint Lock Column\”, let\’s explore the secrets of the fingerprint lock!
It\’s easy to explain in a simple way. Understand something (if you are really too lazy to read it, you can just read the red letters)
The above is just a brief summary. I am going to explain the various functions in detail below. After all, hiring a qualified doorkeeper still requires sincerity, in addition to considering whether it is safe enough. In addition, you have to compare which one is more cost-effective.
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3. What functions does the fingerprint lock have?
1. Electronic doorbell function
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Most smart door locks now integrate doorbells, which not only saves money on doorbells, and there is no need to destroy the door panel and make holes. In addition, you no longer have to worry about naughty children knocking off the doorbell, and you can also have real-time monitoring and remote notification. This feature is still very much needed.
2. Living fingerprints
Let me tell you a story first. In 2017, a certain column purchased more than a dozen fingerprint locks at different prices online, and then used silicone copied fingerprints to \”fake them.\” \”Unlocking the lock, most of the fingerprint locks inevitably identified the wrong \”owner\”. After this incident, the biggest vulnerability of fingerprint locks once made people panic.
The later living fingerprint recognition technology completely solved this problem. After 18 years, the semiconductor fingerprint heads have also been upgraded with the living fingerprint recognition function. They were the first to have this function. The original ones were FPC, but FPC was expensive at the time and not every family could afford it.
The principle of living fingerprint recognition is not only to identify the epidermal fingerprint layer of the finger, but also to identify the dermal layer fingerprint below the epidermis, and the dermal layer cannot be copied. of.
3. NFC unlocking
This unlocking method is quite amazing. You can complete the entire process of unlocking and opening the door with a card, mobile phone or bracelet with NFC function. , watches, etc., the elderly and children can easily open the door with a courier or a schoolbag, which is really awesome.
4. Coercive fingerprints
Although this is a function that I never want to use, an extra layer of protection can always give people more peace of mind. I suddenly remembered this Hong Kong movie There is no way to call the police when someone forces you to open the door. In short, this function can be used, but it must not be used.
What is a virtual password? You can enter any number when entering the password. As long as the consecutive passwords in the middle are correct, the door lock can be opened.
This function can It effectively prevents someone from peeking at your password, or others trying to crack the password at home through fingerprint marks and wear and tear. (The scene from the Hong Kong movie comes to mind again. Use a flashlight and a small brush to operate. The door opens. )
6. Automatic lock when closing the door
I spent a long time before going out and repeatedly confirmed that the door was locked. But as soon as I went downstairs, I started to doubt myself again.
This. Sometimes, the function of automatic locking when closing the door is also very necessary. With this function, it can be automatically locked when closing the door, and the door status can be checked at any time through the APP even when outdoors, so you no longer have to worry about anxiety attacks.
7. Anti-little black box
Using a small black box with a Tesla coil to crack the door lock can be said to be terrifying. Just shake a small box and the door will open. It is really scary to think about it. Too terrible. Therefore, even CCTV has done special reports, and anti-black box has become the most basic function of smart door locks.
How is the anti-little black box function implemented? It needs to build multiple shielding layers internally to prevent electromagnetic interference, and then shield the interference from strong magnetic fields, so as to completely get rid of the violent unlocking of the small black box.
8. Voice unlocking
Why bother opening the door? You can open the door remotely with just one sentence. In this way, when you are busy cooking in the kitchen, if your family comes home or there are guests, you no longer have to worry about being in a hurry.
In addition to voice unlocking, there are also various voice reminder functions that are very considerate, such as:
tips: Reminders are divided into APP or SMS There are three types of online reminders, alarm reminders issued by the lock itself, and simultaneous reminders.
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4. How important are the lock core and lock body?
1. Be sure to choose a C-level lock cylinder
The core of the fingerprint lock is still the lock cylinder, and the direct insertion of the C-level lock cylinder is the soul.
Class A lock: Currently, the keys for Class A anti-theft locks on the market mainly include one-word keys and cross keys. The internal structure of the A-grade lock cylinder is very simple, limited to the changes of pins, and the pin slots are few and shallow.. Within 1 minute of the anti-technical opening time, the mutual opening rate is extremely high. The marble structure is a single row of marbles or a cross lock. (1 minute to open the lock. Isn’t this the time to open your own lock? It’s scary)
Most of the mechanical lock cylinders equipped with fingerprint locks are C-level lock cylinders. The standard for C-level lock cylinders is that they need to be guaranteed to last 270 minutes. If it is not turned on by technology within 4 hours, your home will be absolutely safe, which is equivalent to 4 and a half hours.
Many mechanical locks use Class B lock cylinders. The requirement for Class B lock cylinders is to ensure that they cannot be opened by technology within 5 minutes. From this we can see the huge difference between the two lock cores, and also the security gap between fingerprint locks and mechanical locks.
2. The difference between Overlord lock body and ordinary lock body
When we buy smart locks, we often encounter Overlord locks Multiple choice questions about body and standard lock body, and what is a heaven and earth hook?
I have installed three types of fingerprint locks before and after, and I still know a little about the differences between different lock bodies. Let’s briefly talk about it~
Let’s first talk about the standard lock body and the Overlord lock body. The standard lock body is also called the universal lock body, which is what we usually call the 6068 lock body. Why is it called 6068 lock body? Here \”60\” refers to the distance from the square steel hole to the side of the lock body, and \”68\” refers to the distance from the square steel hole to the center of the lock core. The length of the door lock guide piece of the 6068 lock body is usually about 240mm.
The Overlord lock body is actually a special lock body derived from the standard lock body. The distance from the square steel hole to the side of the Overlord lock body is the same as the distance from the square steel hole to the side. The distance between the center of the lock core is also in line with the \”6068\” principle. It is only based on the standard lock body. On the other hand, a counter-lock tongue is installed at both ends of the lock tongue, which adds an extra layer of insurance to the lock body and makes it stronger and safer. Therefore, in terms of size, the Bawang lock body is larger than the standard lock body. The length of the door lock guide plate is usually 388mm, and the two are easy to distinguish in appearance.
Although from a structural point of view, the Overlord lock body does have an extra layer of protection, from an actual security perspective, the Overlord lock body is not too obvious. Advantages. This is because although the Overlord lock body has better protection against violent damage, it does not provide any special protection for the lock cylinder.
Currently, domestic thieves use cracking the lock core as a means. Most of them use skills to open the lock instead of violently breaking the door. This means that once the thief cracks the lock core, the lock will be unlocked. The tongue will be useless. Although there is no difference between the Overlord lock body and the standard lock body in the face of technical unlocking, what if it is violently unlocked?
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