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介绍一种基于新型自动识别芯片ｉＢｕｔｔｏｎＴＭ的单位考勤系统──识读器的硬件结构和设计原理，并给出了系统的工作过程。
This paper introduces a unit time and attendance system based on iButtonTM, a new type of automatic identification chip ──Reader hardware structure and design principle, and gives the working process of the system.