Handbuch Datafox EVO 3.5 Pure
Seite 123
Datum: 06.08.2018 Version: 04.03.07.XX
5.12.3.
Procedure
Identification
The finger characteristics are recorded via the fingerprint module. Then, the data pool is checked for
matches. If a match is found, the PID of the person is returned, otherwise an error. The matching
threshold is determined by the security level.
Verification
An employee identifies himself via a transponder. The PID (employee number) is read from the ID
card. Then the employee has to swipe his finger across the scanner of the fingerprint module. In the
data pool of the fingerprint module, all primary keys (combination of PID and template) with this PID
are determined (up to ten assignments are possible) and checked for matches with the scanned fin-
ger characteristics.
Advantage:
faster detection, higher security
Disadvantage:
further detection medium needed, e.g. transponder
Identification with Data Storage of Finger Templates in the Fingerprint Module
The terminal polls the fingerprint regularly whether someone has read their finger. If so, the finger-
print transfers to the terminal, who has read their finger and whether the finger was valid. PID and
validity are transferred. The task in the terminal for the fingerprint triggers an input sequence and
access control - if defined in the setup. If no person is detected, the fingerprint returns a PID = 0.
Verification with Data Storage of Finger Templates in the Fingerprint Module
The terminal polls a transponder reader regularly whether a transponder was detected. If so, the
serial number or a memory block of the transponder is transferred to the fingerprint module. The fin-
gerprint module waits for the reading of the finger. After reading, it is checked whether the finger
stored in the fingerprint module with the serial number or the transponder data matches the read
finger. The fingerprint module transfers PID and validity to the terminal. The task in the terminal for
the fingerprint triggers an input sequence and access control - if defined in the setup.
Verification with Data Storage of Finger Templates at a Transponder
The terminal polls a transponder reader regularly whether a transponder was detected. If so, the
serial number or a memory block of the transponder and the finger data stored in the transponder
are transferred to the fingerprint module. The fingerprint module waits for the reading (scanning) of
the finger. After reading (scanning), it is checked whether the finger transferred by the ID card
matches the read (scanned) finger. The fingerprint module transfers PID and validity to the terminal.
The task in the terminal for the fingerprint triggers an input sequence and access control - if defined
in the setup.
