With the maturity of the intelligent door lock industry and technology, with the continuous improvement of people's living standards, more and more consumers are basically thinking about whether they should also change the fingerprint lock at home when decorating or changing the door lock at home?

At present, the market is mainly divided into two categories: semiconductor fingerprint identification and optical fingerprint identification.But many consumers and even some fingerprint lock practitioners are difficult to distinguish between the two.

Let's first look at the characteristics of optical identification fingerprint lock.

The principle of optical fingerprint identification is to use the reflection principle of light to reflect your fingerprint.The cost is very cheap and has a great impact on identification.Dirty and wet hands are difficult to identify, and there is a risk of being stolen by false fingerprints in this way.This technology is not only applied to punch in machines and fingerprint locks.Nowadays, the off screen fingerprint identification of many mobile phones adopts the optical principle.

Because the optical fingerprint identification module has low cost and strong adaptability, it is widely used in fingerprint identification intelligent door lock by major intelligent lock manufacturers.In fact, optical fingerprint identification intelligent lock still has its own advantages and benefits.

The optical fingerprint identification module has strong environmental adaptability.The optical fingerprint head acquisition window is generally made of tempered glass, which can resist pressure and wear, acid-base and stain corrosion to a certain extent.It is well adapted to the temperature of the working environment. It can also maintain the operation of components under the environment of - 15 ° C to 55 ° C and 20% - 95% humidity, and the glass surface is easy to clean. It can be used not only in ordinary environments such as families, but also in special environments such as humidity, high temperature and dust.

Secondly, the optical fingerprint identification module has good stability.Optical fingerprint identification technology has been tested and improved by the market for a long time. In addition, the optical fingerprint head has good adaptability to the environment, so it has good stability in the process of use and long theoretical life.

However, the positive fingerprint lock of optical identification also has a bad side: however, the anti-counterfeiting performance of optical fingerprint identification is weak, and there are hidden dangers, especially for users with shallow fingerprints or peeling fingers, it is easy to make identification errors.

So what is the concept of semiconductor fingerprint identification of fingerprint lock?

Generally, most of us call semiconductor fingerprint recognition capacitance recognition and living fingerprint recognition.In fact, the full scientific name of semiconductor fingerprint identification should be: semiconductor biological living fingerprint identification technology.

The principle is that many capacitive plates are set on the identification sensor, and the area of these capacitive plates is the same.When the user presses it on the sensor, the skin surface corresponds to these capacitor plates one by one, so a complete plate capacitor is formed. Due to the existence of raised ridge (fingerprint raised part) and concave Valley (fingerprint recessed part) in the fingerprint.

Therefore, the distance between the two plates of each capacitor is not the same.As a result, the size of each capacitor is different.Capacitive fingerprint sensor obtains fingerprint information by detecting the difference of coupling capacitance caused by different distance from fingerprint.

Advantages and disadvantages of semiconductor fingerprint identification technology:

Advantages:

(1) High recognition rate.

(2) It can automatically end image acquisition, and the image quality is getting better and better.

(3) Strong anti-counterfeiting fingerprint ability.

(4) Strong anti-static ability.

(5) The semiconductor fingerprint module is ultra-thin and can be embedded in various intelligent hardware products.

Disadvantages:

(1) It is easily affected by static electricity, so that the sensor can not read the image sometimes, and even destroy the image.

(2) The wear resistance is not enough.Thus affecting its service life.

(3) The price is much more expensive than the optical fingerprint sensor.

What is semiconductor fingerprint identification intelligent lock?Is it really much better than optical fingerprint lock?Conclusion:

Smart home is a trend and trend, and also leads the household consumption of smart door locks.In particular, fingerprint identification intelligent lock has become a common intelligent product for door security in ordinary people's homes. There are more and more products of fingerprint identification intelligent lock on the market, which provides great convenience for people's life to a certain extent.Fingerprint identification is a unique feature of human body, which is convenient, fast and accurate. With the increasing demand for identity authentication in the world, its application feature identification technology has also been promoted and developed.

So, to buy a fingerprint smart lock is to choose a smart lock for light fingerprint identification?Or choose the smart door lock with semiconductor fingerprint identification technology?This is actually determined according to the preferences of the majority of family consumers.The intelligent locks of the two fingerprint identification technologies have their own advantages and disadvantages.The most realistic problem is that because of the problem of consumption cost, people often make the first decision on price. Therefore, according to the current market consumption data, most consumers buy optical identification fingerprint locks.