Increase knowledge! Are there so many types of smart locks? ! How many do you know?

How many kinds of Smart Locks are there? Today, Xiaobian will make a division for smart locks from different dimensions and take stock of the types of smart locks on the market.

From the most original way to open the door, smart locks can be divided into two categories: hand and push and pull.
① Handle smart lock
The unlocking method of the hand-held smart lock is closest to that of the Mechanical Lock, which requires pressing the handle to unlock. The handle smart lock is generally semi-automatic smart lock, after the verification is completed, the user needs to turn the handle to open and lock the door.

② Push and pull smart lock
Push-pull smart lock as the name suggests is to unlock by pushing and pulling, generally automatic smart lock, after the completion of verification will automatically open the door, after closing the door will automatically lock, the user only need to push and pull to complete the lock.Biometric, according to the biometric way to divide, smart lock can be divided into password, fingerprint, face, vein, iris and other 5 types. Among them, password lock, Fingerprint Lock and face lock are more mainstream.

① Password lock, password lock is also the most common form of early smart lock unlock, the user only need to enter the password to unlock.
In the network about room, apartment, public rental and other scenarios, password lock because of its lower production costs and better delivery capacity has become the mainstream of application: the system only needs to encrypt the room number, stay time and other data, you can randomly generate a disorderly and random password, and can add and change the password many times, used to manage ordinary rent/residents.

②The fingerprint lock has become the most popular smart lock on the market due to a variety of factors such as stable price and high cost performance. Fingerprint recognition technology is divided into semiconductor fingerprint recognition and optical fingerprint recognition technology. Now the vast majority of fingerprint locks on the market use semiconductor fingerprint recognition technology. (Optical fingerprint recognition has been eliminated by the market due to high reproducibility and low security), but in the face of fingerprint damage and the elderly and children with blurred/shallow fingerprints, fingerprint locks are often difficult to identify.

③Face recognition smart lock, the face recognition technology on the market now has 2D face recognition technology and 3D face recognition technology. However, due to the former's low security, mainstream brands basically use 3D face recognition technology. 3D face recognition technology is based on the principle of triangulation to calculate the depth information of the face to determine whether the face is consistent, so as to verify the unlock. With the continuous development of technology and Internet of Things technology, the application of face recognition technology in the field of smart locks has gradually matured, and has gradually become the mainstream trend of smart locks.
3D face recognition technology is mainly divided into three kinds: binocular recognition technology, 3D structured light technology, TOF technology, these three technologies have better anti-counterfeiting performance, fewer photos, videos, mask opening and other problems, and smaller security risks.

④ Vein recognition intelligent lock, vein recognition is to use the structure of the finger vein blood vessels for identity recognition. Vein recognition technology is divided into digital vein recognition technology and palmar vein recognition technology. At present, vein recognition technology is widely used in the field of intelligent locks. There are often many densely covered blood vessels at the end of the finger, there is almost no repetition between people, and it will not affect the time because of abnormal finger surface skin, so the recognition rate can be < 0.0001%, the rejection rate can be < 0.01%, so the security of the finger vein smart lock is higher, and there are many smart lock brands in the industry have launched the finger vein smart lock products.
Palmar vein recognition technology because the recognition module is too large, save more vein information, so the recognition speed will be reduced, the power consumption is large, at present in the field of smart lock has not seen the relevant application.

⑤ Iris recognition technology, the principle of iris recognition is to identify the ring part between the black pupil and the white sclera on the surface of the human eye, including many interlaced spots, filaments, coronas, stripes, recesses and other detailed features. The iris is the only internal organ that can be seen from the outside, does not wear out and is unique, so in general, it can be the only biometric feature that identifies an individual.
Although in terms of security, iris recognition technology is far better than fingerprint recognition and face recognition technology, due to objective factors such as multiple recognition requirements, high module composition, and remaining technical problems, the application of iris recognition technology in the field of home smart locks has been delayed.

The type of lock body is divided according to the type of lock body. The smart locks on the market can generally be divided into smart locks using mechanical lock bodies and smart locks using electronic lock bodies, also known as rear motor smart locks and built-in motor smart locks.
① Rear motor intelligent lock
The rear motor intelligent lock generally uses a mechanical lock body, which relies on square steel to drive the lock body, and can be automatically unlocked or manually unlocked after identification. The technology of the mechanical lock body is more mature, the cost is low, and the operation is stable, so it is widely used in the intelligent lock industry, but the power consumption is large, the noise is large, and the application is not beautiful enough.

② Built-in motor intelligent lock
The built-in motor intelligent lock uses an electronic lock body, which can be automatically unlocked after identification and automatically locked after closing the door. The electronic lock body has a high technical threshold, so the stability needs to be strengthened, but the electronic lock body relies on the motor to unlock, consumes little power, and the application is beautiful.
 
In the past two years, in addition to traditional smart lock types, smart locks with additional other functions such as cat eye locks and networking locks have gradually been favored by consumers.
① cat eye lock
Users can check the condition of the door at any time through the cat eye installed on the smart lock, turning passive defense into active defense. At the same time, some cat eye locks will be equipped with indoor visual screen, doorbell, door lock, indoor display as one, so it is popular with consumers.

② Network lock
The Internet lock is more popular with young people than the cat's eye lock. The Internet smart lock can control the door lock through the mobile phone and other tools, which is more intelligent, and can also upload a variety of door lock information, which is more secure, very convenient and safe.