Don’t Allow Intruders In Your Office! Go For Finger Scanning Technology

Finger print scanning technology uses a finger print scanner to identify people and provide a high level of security. It is most often used at access points of a building, to ensure that only appropriate people can enter a building or room. Finger scanning technology is now being used to provide security for a wide range of items, including computers. In the case of a computer, finger scanner software is installed to allow the finger print scanner to identify people using the computer and deny access to anyone whose fingerprints do not match those of the people allowed to use the computer.

Finger scanning technology provides a high level of security, as fingerprints cannot be stolen or given to someone else to use. Also, fingerprints are not lost or misplaced. For these reasons, finger scanning is now used for a variety of security purposes. Finger scanner development has lead to the improvement of fingerprint scanning for access reasons and the use of finger scanning for such things as computers, safety boxes, portable finger print scanners, and scanners that may be used by banks or the police.

Types of Fingerprint Scanners

There are three main types of fingerprint scanners:

• Optic based sensors use light to read the image of the fingerprint.
• Capacitance-based sensors use electrical currents to read the image of the fingerprint.
• Radio frequency sensors use a radio frequency signal to read the image of the fingerprint.

How Does Finger Scanning Technology Work?

Different types of fingerprint scanners work in different ways. A capacitance-based finger print scanner generates an image of a fingerprint, using an electrical current. The sensor is connected to an integrator, which is connected to an inverting operational amplifier. When the finger is scanned, different ridges and valleys of the fingerprint result in different voltages. When a person is being granted access, the scanner will read the fingerprint and store it as a digital profile. When people are trying gain access by using the fingerprint scanner, the scanner processor reads the voltage output and determines whether it matches the fingerprints that are allowed access.

For the other types of scanner, the process is very similar, except the image of the fingerprint is captured and read in different ways. An optic based sensor uses light to capture and read the fingerprint. A radio frequency sensor sends a radio frequency signal into the finger in order to capture and read the image of the fingerprint.

Continue to : Encrypted Finger Scanner Software

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