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اسکنر اثر انگشت نوری JM201 دارای رزولوشن 500dpi و ارتباط TTL

کد انبار : 3317-132-5295
مدل کالا:JM201-Sensor   جستارش:A1-02-0605B
موجودی: 10
قیمت:
52,200تومان

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اسکنر اثر انگشت نوری JM201 دارای رزولوشن 500dpi و ارتباط TTL 

Product overview
JM-201 Fingerprint Module is an integrated fingerprint processing module with integrated optical path and fingerprint processing. It has the characteristics of small volume, low power consumption, simple interface, high reliability, high recognition speed, good adaptability of wet and dry fingers, fingerprint search high speed.
JM-201 module communication interface for the UART communication interface.

Technical parameters:
Supply voltage: DC 3.3V 
Supply current: Operating current: <60mA 
Peak current: <60mA 
Fingerprint image input time: <1.0 seconds
Window area: 18.1 ╳ 16.2 mm
Resolution: 500dpi

Working principle
1, fingerprint features
The fingerprint algorithm extracts the feature from the acquired fingerprint image, representing the fingerprint information. Fingerprint storage, the search alignment and so are characterized by the operation of the fingerprint to complete.
2, fingerprint processing includes two processes: fingerprint login process and fingerprint matching process [which fingerprints are divided into fingerprint alignment (1: 1) and fingerprint search (1: N) in two ways]. 
When the fingerprint is registered, the fingerprint is recorded twice for each fingerprint, and the input image is stored in the module. 
Fingerprint matching, through the fingerprint sensor, input to verify the fingerprint image and processing, and then with the module in the fingerprint template to match the comparison (if the module specified in a template to match, known as the fingerprint matching mode, that is, 1: 1 Mode; if the match with a number of templates, known as the fingerprint search mode, that is, 1: N mode), the module gives the matching results (through or failure).

 

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