shenzhen hcc laptop kiosk handheld fingerprint reader-HCFP-050

The first chapter overview

HCFP - 050 fingerprint readers refers to the technology introduced, with high speed DSP processor as the core, combined with optical fingerprint sensor with company independent intellectual property rights, a fingerprint input, image processing, fingerprints, search and store templates, and other functions of intelligent fingerprint readers.

1.1 Product principle is introduced

Fingerprint readers HCFP-050 operation process is as follows:

1.2 Product specification

Comment: :The actual size of fingerprint feature and Fingerprint templateare 512 bytes. only 256 bytes of data in the fingerprint characteristic is the valid fingerprint template is from the merger of two fingerprint characteristic,

so 512 bytes of data are all valid data.

The second chapter system resources

To meet the different needs of customers, module system provides a number of resources available to the user's system.

3.1 The buffer

Module RAM resources are as follows:

An image buffer Image Buffer [256 * 256]

Two characteristics file buffer CharBuffer1 [512] and CharBuffer2 [512].

Any user can read and write through instruction buffer. Image buffer and feature file buffer content without saving power.

3.1.1 Image buffer

Image buffer Image Buffer used to store image data and internal image processing module is used.

Through the UART transmission image in order to speed up, only high four pixels bytes, each byte represents two pixels, namely gray level 16

Transmitted through the USB port is the eight pixels, 256 gray levels.

3.1.2 Characteristics of the file buffer

Characteristics of the file buffer CharBuffer1 or deposited CharBuffer2 features file or a template file.

Characteristics of files and template file size of 512 bytes, only feature file valid data is 256 bytes, and template files are two characteristics of synthesis, is take two characteristics file and set, so the effective data is 512 bytes

3.2 fingerprint

Module in FLASH has opened up a storage area as the fingerprint template storage area namely fingerprint. Fingerprint data is power-off protection.

If the fingerprint template according to the serial number stored, fingerprint database is for N, the fingerprint template fingerprint in the serial number is defined as: 0, 1, 2 -- -- -- -- -- - N, N - 1-2. Users can only according to the serial

number to access the fingerprint library content.

3.3 System configuration parameters

Modules for the convenience of users, open part of the system parameters, allowing the user to through instruction, a single change specified parameter value. See the basic parameter setting module system instructions SetSysPara

and reading system parameter ReadSysPara.

PC send instructions modify system parameters, module is first carried out in accordance with the original configuration response, reply after modify system Settings, and record configuration in the FLASH, the system after power on,

next time will work in accordance

3.3.1 Baud rate control (parameter number: 4)

The parameter control module and PC through the UART communication baud rate of communication, if the parameter value is N (N values range

1 ~ 12), the corresponding baud rate to 9600 * (N) BPS.

3.3.2 Security levels (parameter number: 5)

This parameter controls fingerprints and search than the threshold, is divided into 5 levels, the scope is: 1, 2, 3, 4, 5. Security level to 1 to recognize false rate is highest, refused to recognize the lowest rates. Security level for 5 to

recognize false rate is the lowest, refused to recognize the highest rate.

3.3.3 Packet length (parameter number: 6)

The parameter control module and PC communication, when time allows data package in the maximum length of the content, scope

Is: 0, 1, 2, 3, corresponding to the length (in bytes) are: 32, 64, 128, 64.

The third chapter use USB devices

1 the recommended configuration

Left: CPU faster 1.6 GHZ above, more than 512 MB of memory

Cardiac operating system: 32-bit x86 architecture above or compatible PC.

Derive the graphics card: SVGA16 color, more than 1024 * 768 resolution

His interface: USB1.1 above

2 hardware installation

The fourth chapter using range

Fingerprint identification instrument areas of application:

1) Financial teller fingerprint authentication system

2) Bank vault fingerprint authentication system

3) The vehicle dispatching fingerprint authentication system

4) The public security police fingerprint identification system

5) The examinee fingerprint authentication system

6) Driving school fingerprint management system

7) Medical fingerprint management system of social security

8) OA office fingerprint authentication system

9) Network fingerprint authentication system

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