CN102567717A - Wireless fingerprint collection device based on digital signal processor (DSP) and field programmable gata array (FPGA) - Google Patents

Abstract

The invention provides a wireless fingerprint collection device based on a digital signal processor (DSP) and a field programmable gata array (FPGA), which is respectively connected with the FPGA, a FLASH, a synchronous dynamic random access memory (SDRAM), a display module, a button module and a wireless transmission module which are all connected with the DSP. A VFDA02 fingerprint identification module is connected with the FPGA. The wireless fingerprint collection device uses a wireless network to transmit collection data, overcomes the problem that an attendance machine adopting a wiring mode to transmit the collection data is difficult in wiring in places with bad terrain environment and the like, and can achieve the fact that a plurality of fingerprint collection ports are communicated with a personal computer (PC) through wireless transmission, and the problem of insufficient ports is free of consideration.

Description

A kind of wireless fingerprint harvester based on DSP and FPGA

Technical field

The present invention relates to electronic technology field, a kind of wireless fingerprint harvester based on DSP and FPGA is provided.

Background technology

Now an important component part of enterprise, career management is exactly its occurrences in human life system of attendance, and its quality is the economical, societal benefits of the unit of having influence on and many aspects such as wages of employee directly.Therefore, to the employee's of unit the situation of turning out for work carry out effectively, scientifically management has become the important topic that each unit faces.

Birth along with this advanced computers Work attendance management system of fingerprint attendance system; Examine the feelings problem though solved unit; But traditional embedded Automated Fingerprint Identification System adopts monolithic DSP or MIPS processor to accomplish algorithm more; Because DSP or MIPS processor can only be carried out according to procedure order, in the fingerprint matching process, can only mate one by one with the fingerprint in the whole storehouse, so this type systematic handle big fingerprint base at present match time quite long.In order to overcome this shortcoming, this paper has made up the hardware platform of Floating-point DSP and FPGA associated treatment framework, makes full use of degree of accuracy and the characteristics of FPGA parallel processing of DSP on calculating, and handles matching algorithm jointly by DSP and FPGA.Improved the processing speed of fingerprint recognition system greatly.

Summary of the invention

The object of the present invention is to provide a kind of wireless transmission to realize examining a kind of wireless fingerprint harvester that the feelings information uploading is given terminal based on DSP and FPGA.

The present invention is for realizing that above-mentioned purpose adopts following technical scheme:

A kind of wireless fingerprint harvester based on DSP and FPGA is characterized in that comprising:

FPGA: adopt chip EPlC6Q240C8, realize function, IMAQ control function and the system bus handoff functionality of address generator;

DSP: adopt chip TMS320VC5509A, the DSP unit is the core of whole fingerprint disposal system, is responsible for fingerprint image is handled in real time;

VFDA02 fingerprint identification module: be used to gather information in fingerprint;

FLASH: the setup code and the configuration information that adopt chip SST39VFl601, storage system;

SDRAM: adopt chip K4S161622H, be used for metadata cache;

Wireless transport module: adopt the CC1000 chip to be used for the image transmission of DSP and PC;

Display module: show job information;

Key-press module: duty is set;

Said FPGA, FLASH, SDRAM, display module, key-press module and wireless transport module are connected all and are connected with DSP, and said VFDA02 fingerprint identification module is connected with FPGA.

The present invention has following beneficial effect:

One, the present invention has made up the hardware platform of Floating-point DSP and FPGA associated treatment framework, makes full use of degree of accuracy and the characteristics of FPGA parallel processing of DSP on calculating, and handles matching algorithm jointly by DSP and FPGA.Improved the processing speed of fingerprint recognition system greatly.

Two, the present invention adopts wireless network that image data is transmitted, and has overcome the attendance recorder that adopts wiring type to transmit image data and has had problems such as difficult wiring in the bad place of physical features environment.

Three, the present invention can realize a plurality of fingerprint collecting ports and a PC communication and need not consider the problem that interface is not enough through wireless transmission.

Description of drawings

Fig. 1 is a system construction drawing of the present invention.

Embodiment

A kind of wireless fingerprint harvester based on DSP and FPGA comprises:

FPGA: adopt chip EPlC6Q240C8, realize function, IMAQ control function and the system bus handoff functionality of address generator;

DSP: adopt chip TMS320VC5509A, the DSP unit is the core of whole fingerprint disposal system, is responsible for fingerprint image is handled in real time;

VFDA02 fingerprint identification module: be used to gather information in fingerprint;

FLASH: the setup code and the configuration information that adopt chip SST39VFl601, storage system;

SDRAM: adopt chip K4S161622H, be used for metadata cache;

Wireless transport module: adopt the CC1000 chip to be used for the image transmission of DSP and PC;

Display module: show job information;

Key-press module: duty is set;

Said FPGA, FLASH, SDRAM, display module, key-press module and wireless transport module are connected all and are connected with DSP, and said VFDA02 fingerprint identification module is connected with FPGA.

Claims (1)

1. wireless fingerprint harvester based on DSP and FPGA is characterized in that comprising:

FPGA: adopt chip EPlC6Q240C8, realize function, IMAQ control function and the system bus handoff functionality of address generator;

DSP: adopt chip TMS320VC5509A, the DSP unit is the core of whole fingerprint disposal system, is responsible for fingerprint image is handled in real time;

VFDA02 fingerprint identification module: be used to gather information in fingerprint;

FLASH: the setup code and the configuration information that adopt chip SST39VFl601, storage system;

SDRAM: adopt chip K4S161622H, be used for metadata cache;

Wireless transport module: adopt the CC1000 chip to be used for the image transmission of DSP and PC;

Display module: show job information;

Key-press module: duty is set;

Said FPGA, FLASH, SDRAM, display module, key-press module and wireless transport module are connected all and are connected with DSP, and said VFDA02 fingerprint identification module is connected with FPGA.

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