【摘要】 针对目前嵌入式指纹识别系统设计的不足,提出了基于单DSP处理器结构的指纹识别设计方案。系统硬件采用TMS320VC5501作为处理核心,CMOS图像传感器HV7131R为图像采集器件,片上系统芯片CY8C21534设计的电容性触摸按键提供系统控制输入。系统软件以嵌入式实时操作系统DSP/BI-OS为开发平台进行实时多任务设计,并对指纹识别算法进行了硬件平台优化和改进。调试结果表明,该系统运行稳定可靠,匹配精度高,满足设计要求。更多还原

【Abstract】 A fingerprint recognition system is proposed based on single DSP processor structure because of design flaws of the present embedded system.TMS320VC5501 is used as the processor,and HV7131R CMOS color image sensor is used as image acquisition chip.Cap sense touch keyboard is introduced for input control using CY8C21534 SoC chip.The real-time multi-task design of system software is based on the embedded real-time operation system DSP/BIOS.The fingerprint recognition algorithm is optimized and improved in the hardware platform.The test result shows that this system runs stable and the precision of matching meets the requirements of system.更多还原