What is the principle of push-type fingerprinting? How is the principle of touch fingerprint recognition implemented? An article in this column describes the principle of the scratch-type fingerprint recognition technology. Interested ones can be reviewed. This article describes how push-type (touch) fingerprinting works. Push type is the current mainstream fingerprint identification and unlocking method. The operation is more humanized, meets ergonomic requirements, and is more convenient and faster. What is the technical principle? aNo Smart Lock China
aNo Smart Lock China
Detailed explanation of pressing fingerprint recognition working principle Press-type fingerprint recognition is achieved by putting a finger in contact with the fingerprint acquisition window and gently touching it to achieve the fingerprint unlocking process, which is more concise and efficient than the scratch-type operation. aNo Smart Lock China
Referring to the working principle of push-type fingerprint recognition, there is no difference with the scratch type, and the two are mainly differences in the operation mode. The principle of fingerprint recognition is mainly to see which recognition method, common fingerprint identification methods are: aNo smart lock China
Optical fingerprint identification; Radio frequency fingerprint identification; Capacitive (semiconductor) fingerprint recognition. There are great differences in the basic principles of fingerprint recognition. The specific principles are described below. aNo Smart Lock China
Capacitance sensing: The finger forms a pole of the capacitor, and the other side of the silicon sensor array constitutes the other pole of the capacitor. Microcurrent is formed between the micro-electric field and the capacitive sensor that the human body carries. The peak of the fingerprint is between the valley and the sensor. The difference in the distance between the capacitances is formed so that a fingerprint image is drawn. aNo Smart Lock China
aNo Smart Lock China
Radio Frequency Identification: A low-frequency RF signal is transmitted to the dermis. Since the human cell fluid is conductive, the electric field distribution of the dermis is read to obtain the entire dermis layer, and the most accurate image of the entire dermis layer is obtained by reading the electric field distribution of the dermis layer. There is a driver outside the Touch ID. Ring, which emits radio frequency signals. aNo Smart Lock China
Optical reflection recognition: through the optical fingerprint collector, the emitted light is on the surface of the fingerprint. Because the features of the human fingerprint image are different and the surface is ups and downs, the feedback image is of different shades and a complete fingerprint image can be obtained. aNo Smart Lock China
aNo Smart Lock China
The sensor and the acquisition instrument play the role of capturing and fingerprinting. To achieve the unlocking process, the fingerprint database needs to be compared and analyzed. A completely matched fingerprint can be successfully unlocked. aNo Smart Lock China
The above is the introduction of smart lock Chinese network Xiaobian published press fingerprint identification technology principle, more fingerprint lock knowledge, please pay attention to the site related columns! aNo Smart Lock China
Solar Security Light,Solar Powered Flood Lights,Solar Powered Security Lights,Solar Led Flood Lights