Research And Application Of Fingerprint System Based On IP Core Reused

Fingerprint identification system is to be used widely in many areas. But in today's market, fingerprint identification applications and solutions of fingerprint identification systems provided by the manufacturers, from systems to software development kit, whether it is systems integration or the value-added products of application development, embedded systems or other computer software, high cost is a main factor which keeps the fingerprint systems from being widely used.To meet the challenge of this situation, we explored in building a low-cost, reusable, and intellectual property right self holding fingerprint identification system IP (Intellectual Property)core module, from the perspective of the system module, to meet the fingerprint identification system function requirements, SoC hardware and software co-design approach is adopted in the process of software and hardware integration. The main contents of this paper are as follows:(1)Considering the architecture of fingerprint identification system IP core modules from the perspective of system module, the composition of fingerprint identification System IP core modules is planned. The co-design approach of SoC hardware and software is adopted.(2) The ARM CPU, embedded Linux operating system, fingerprints sensor chip and driver, fingerprint identification algorithm program are integrated to form a fingerprint identification algorithm SoC system, which formed a sketch of the fingerprint identification algorithm IP core module. (3) The Implementation of the FPS200 fingerprint sensor chip hardware circuit design and connection, designing process of the USB driver for Linux2.6 kernel, the fingerprint identification programs, and the optimization of the fingerprint identification algorithms for the ARM CPU which does not have built-in floating-point processing unit and the division operation instructions.(4)The designing of the initialization and reset functions, the security settings and parameters setting functions of the fingerprint identification system IP core. By providing network and serial interface module system of fingerprint identification system for IP nuclear package so that the PC and MCU, ARM, and other embedded devices can rapily implement access control, attendance recording, and identity authentication system by reusing the reusable system.