嵌 入 式 指 纹 采 集 系 统 的 讨 论 与 设 计 — — 指 纹采 集 与 综 合 设 计摘 要指纹采集技术是指纹识别技术中最为关键的技术之一。随着指纹传感器性能的不断提升以及指纹识别技术的进展与应用，高质量的指纹采集技术已成为一个重要的讨论课题。本论文对指纹采集系统做了初步的讨论及设计，主要做了以下几方面工作：首先，分析了本课题的讨论现状和进展方向，阐述了本课题讨论的必要性。考虑到基于ARM 体系结构的芯片所具有的强大处理能力和低廉的价格，本设计采纳EasyARM615 开发套件和μC/OS-Ⅱ 操作系统来构建一个嵌入式指纹采集系统。而后，根据设计要求对指纹芯片进行了选型，确定了系统的总体设计方案，设计了硬件开发平台；在软件方面，编写并调试了 FPS200 驱动程序、指纹采集程序、串行通信程序等。最后，文中对调试过程中碰到的一些问题进行了阐述，给出了解决方法，并对进一步优化系统提出了建议。关键词：FPS200 ；指纹采集；μC/OS-Ⅱ ；ARM615The Investigation and Design of Embedded Fingerprint Acquisition System——Fingerprint Acquisition and Comprehensive DesignAbstractFingerprint data acquisition is the most pivotal sector in the fingerprint identification technology. As the rapid development of fingerprint sensors and the wide application of related technology, high quality fingerprint image acquisition will become a significant issue. This paper did some elementary research on embedded automated fingerprint acquisition system, it mainly includes the following several aspects:Firstly, this paper analyses the study actuality and development direction of this task, and explains the necessity of this task. Thinking of the high performance and low cost of ARM-chip, in this paper we construct an embedded fingerprint acquisition system based on the EasyARM615 and μC/OS- .ⅡSecondly, this paper selects the fingerprint chips, confirms the system overall concept, designs the hardware of the system. As the software aspect, we have designed the FPS200...
