Page 18 Some precautions have to be taken to get a good read every time. Make sure the center point of your finger is placed in the middle of the scanner for a good read. The terminal accepts other fingers but index is the most convenient. Precision in time and date cannot be compromised for the system to work efficiently.
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Introduction to How Fingerprint Scanners Work Computerized fingerprint scanners have been a mainstay of spy thrillers for decades, but up until recently, they were pretty exotic technology in the real world.
Instead of, or in addition to, a password, you need your distinctive print to gain access. Fingerprint Basics Fingerprints are one of those bizarre twists of nature. Human beings happen to have built-in, easily accessible identity cards. You have a unique design, which represents you alone, literally at your fingertips.
How did this happen? People have tiny ridges of skin on their fingers because this particular adaptation was extremely advantageous to the ancestors of the human species. The other function of fingerprints is a total coincidence. Like everything in the human body, these ridges form through a combination of genetic and environmental factors.
The exact position of the fetus in the womb at a particular moment and the exact composition and density of surrounding amniotic fluid decides how every individual ridge will form.
So, in addition to the countless things that go into deciding your genetic make-up in the first place, there are innumerable environmental factors influencing the formation of the fingers. Just like the weather conditions that form clouds or the coastline of a beach, the entire development process is so chaotic that, in the entire course of human history, there is virtually no chance of the same exact pattern forming twice.
Consequently, fingerprints are a unique marker for a person, even an identical twin. And while two prints may look basically the same at a glance, a trained investigator or an advanced piece of software can pick out clear, defined differences. This is the basic idea of fingerprint analysis, in both crime investigation and security. Optical Scanner A fingerprint scanner system has two basic jobs -- it needs to get an image of your finger, and it needs to determine whether the pattern of ridges and valleys in this image matches the pattern of ridges and valleys in pre-scanned images.
Both types come up with the same sort of image, but they go about it in completely different ways. Each photosite records a pixel, a tiny dot representing the light that hit that spot. Collectively, the light and dark pixels form an image of the scanned scene a finger, for example. The scanning process starts when you place your finger on a glass plate, and a CCD camera takes a picture. Before comparing the print to stored data, the scanner processor makes sure the CCD has captured a clear image.
It checks the average pixel darkness, or the overall values in a small sample, and rejects the scan if the overall image is too dark or too light.
If the image is rejected, the scanner adjusts the exposure time to let in more or less light, and then tries the scan again. The processor looks at several straight lines moving horizontally and vertically across the image.
If the fingerprint image has good definition, a line running perpendicular to the ridges will be made up of alternating sections of very dark pixels and very light pixels. If the processor finds that the image is crisp and properly exposed, it proceeds to comparing the captured fingerprint with fingerprints on file. Advantages of Fingerrint Scanning There are several ways a security system can verify that somebody is an authorized user. Most systems are looking for one or more of the following: What you have What you know Who you are To get past a "what you have" system, you need some sort of "token," such as an identity card with a magnetic strip.
A "what you know" system requires you to enter a password or PIN number. To name few: Physical attributes are much harder to fake than identity cards.
Why Biometric Security Is the Best Identity Access Solution
Introduction to How Fingerprint Scanners Work Computerized fingerprint scanners have been a mainstay of spy thrillers for decades, but up until recently, they were pretty exotic technology in the real world. Instead of, or in addition to, a password, you need your distinctive print to gain access. Fingerprint Basics Fingerprints are one of those bizarre twists of nature. Human beings happen to have built-in, easily accessible identity cards. You have a unique design, which represents you alone, literally at your fingertips. How did this happen?
Fingertec AC900 Manuals
Add to cart Testimonials FingerTec was a pleasure to work with. The pricing was great and they took the time to help explain and set the system up. Customer Service spent hours making sure the system was running perfectly and is always there for tech support. The system works great and saves us time and money. Moshe — Brooklyn, NY — Platinum Downloaded and evaluated more then 6 clocking systems — found FingerTec to be one of the least expensive yet one of the most functional. Installed 3 TATCs for time reporting and payroll. The hardware is great; the software fantastic love the Excel interface ; and customer and technical support far exceed expectations.