What Is Fingerprint Software?

Refers to a special instrument made according to the characteristics of the fingerprint. The characteristics of fingerprints are that everyone is different and remains unchanged for life. Footprints, paw prints, palm prints, lip prints, and the texture of the retina at the bottom of the pupil also have the above characteristics. But none are as accurate as fingerprints, such as palm prints are easy to wear and age. This feature of a fingerprint can be used as an "identity card" representing the person.

Fingerprint

The fingerprint device is based on the characteristics of finger fingerprints: different people, unchanged for life.

In addition to being used to distinguish criminals, it can be used for credit cards to effectively prevent counterfeiting; magnetic cards can be used as passports to enter and leave confidential places where the cards are released. Check out the fingerprints of specific people in tens of thousands of fingerprint cards. The international standard is that each person can read 3,000 cards per day, and the use of electronic watch computers is a snap.

There are currently three commonly used fingerprint collection devices: optical, capacitive / inductive, and bio-radio. Among them, the optical fingerprint collector is the earliest fingerprint collector, which is the most commonly used, and there have also been collectors that replace prisms and lens systems with grating lenses. Some of the photoelectric conversion CCD devices have been replaced with CMOS imaging devices, thereby omitting the image acquisition card to obtain digital images directly.

The second evolutionary stage is thermal semiconductor sensors, semiconductors

Bio-RF fingerprint identification technology, RF sensor technology uses the sensor itself to emit a small amount of RF signals, penetrate the surface layer of the finger to control the texture of the inner layer to obtain the best fingerprint image. Therefore, it is possible to pass up to 99.5% for dry fingers, sweaty fingers, and dry fingers. The anti-counterfeiting fingerprint ability is strong. The recognition principle of the fingerprint sensor only responds to the human dermis, which fundamentally eliminates the problem of artificial fingerprints. Temperature zone: Suitable for extremely cold or extremely hot areas. Because RF sensors produce high-quality images, RF technology is the most reliable and powerful solution. In addition, high-quality images also allow the sensor to be reduced without sacrificing the reliability of authentication, thereby reducing costs and enabling the application of RF sensor ideas to any field where mobility and size are not restricted. Radio frequency sensor: Its working principle is very special. It consists of radio frequency and sensitive element array. Each member is actually an equivalent small antenna. It transmits electric waves to the inner layer of the skin (dermal layer) through human fingers . The components of the receiving part demodulate the phase of the returned radio wave, and the difference in phase reflects the fingerprint texture. In a sense, its principle is similar to the working principle of radar, so it is called a radio frequency fingerprint sensor (RF sensor). Moreover, it can automatically adjust the internal electrical parameters to adapt to changes in finger wetness, finger pressure, age, and other factors. Due to its unique working principle, the collected fingerprint image corresponds to the dermis fingerprint texture of the inner layer of the finger, which is not directly sensitive to the outer skin of the finger surface, and is sensitive to some dirt, oil, and dust on the surface With penetrating power. Its special working principle makes it ensure that ideal images can be collected for various types of fingers under various conditions of use, so it has significant superior performance. Dry fingers are a common problem encountered by other types of sensors, but this sensor can solve this problem well.

Its application principle is to use the near-infrared sensor to obtain the distribution map of finger veins, store the template, and then create a unique palm vein database for each person in the computer. Log in and store palm vein data of each person through a computer, and also manage it in a computer.