Schlage PIB300 User Manual page 36

Introduction
HandKey II
Biometrics
Principle of
Operation
The HandKey II
The HandKey II is Schlage Biometrics' fourth generation biometric access control
HandReader . The HandReader records and stores the three-dimensional shape of the
1
human hand for comparison and identity verification. Upon verification, the HandReader
produces an output that can unlock a door, send card format data to an access control
panel, or communicate with a host computer. The HandReader also has auxiliary inputs
and outputs that can be used to control other systems such as CCTV cameras and
alarms.
Biometric is a term describing the automatic measurement and comparison of human
characteristics. While its origins are ancient, the evolution of advanced scanning and
microprocessor technology brought biometrics into everyday life. Electronic hand
geometry technology first appeared in the 1970s. Schlage Biometrics Inc., founded
in 1986, built the first mass-produced hand geometry readers and made biometric
technology affordable for the commercial market. Today, Schlage Biometrics' products are
in use in every imaginable application from protecting cash vaults to verifying parents in
obstetric wards.
The HandReader uses low-level infrared light, and a CMOS camera to capture a three-
dimensional image of the hand. The HandReader then converts the image to a 9 byte
electronic template, and stores the template in a database with the user's information.
To gain access, the user enters his or her ID number at the HandReader's keypad or
uses an external card reader. The HandReader prompts the user to place his or her hand
on the reader's platen . The HandReader compares the hand on the platen with the user's
2
unique template. If the images match, the HandReader unlocks the door or sends the
user's ID number to a third-party access control panel for verification.
The HandReader is an intelligent access control system that can operate as a stand-
alone unit, in a network with other HandReaders, or in a network with a host computer.
Refer to Figure 1-1 when reviewing the information in this section.
1 For the sake of using a consistent name throughout the manual, the HandKey II is referred to
as the HandReader for the remainder of this manual.
2 The platen is the flat surface at the base of the HandReader (see Figure 1-1). This is where
users place their hands for enrollment and verification. It has guide pins to position the fingers
during use.
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