Grow R503 - I Introduction; Operation Principle

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I Introduction
Operation Principle
Fingerprint processing includes two parts: fingerprint enrollment and fingerprint matching (the
matching can be 1:1 or 1:N).
When enrolling, user needs to enter the finger two times. The system will process the two time
finger images, generate a template of the finger based on processing results and store the template.
When matching, user enters the finger through optical sensor and system will generate a template
of the finger and compare it with templates of the finger library. For 1:1 matching, system will
compare the live finger with specific template designated in the Module; for 1:N matching, or
searching, system will search the whole finger library for the matching finger. In both
circumstances, system will return the matching result, success or failure.
Power
DC 3.3V
Interface
UART(3.3V TTL logical
level)
Working current
(Fingerprint
acquisition)
20mA
Matching Mode
Matching Time
1:1 and 1:N
1:N<10ms/Fingerprint
Standby current
(finger detection)
Typical touch standby
voltage: 3.3V
Average current: 2uA
Characteristic value
size
512 bytes
Baud rate
(9600*N)bps,
N=1～6 (default N=6）
Template size
1536 bytes
Image acquiring time
<0.2s
Image resolution
508dpi
Sensing Array
192*192 pixel
Detection Area
Diameter 15mm
Storage capacity
200
Security level
5 (1, 2, 3, 4, 5(highest))
FAR
<0.001%
FRR
<1%
Generate feature
point time
< 500ms
Starting time
≤50ms
Working
environment
Temp: -20℃- +60℃
Storage
environment
Temp: -40℃- +75℃
RH: 10%-85%
RH: <85%