智能像卡门禁系统映象机制

Study about Mapping Mechanism of Entrance Guard System Using Smart Image Card

SIC卡是一种新型的特征信息载体,文章讨论SIC卡用于智能门禁系统的映象机制。主机是MCS-51单片机系统,结合单片机体系与门禁用SIC卡两者的特点,选用X-Y分区跳沿投影作为特征基元,每个基元包含若干子基元;动态数组作为样本库;基元统计进行粗分类,子基元统计进行细辨析。映象精确度达到实用要求。该文涉及抗畸变的模式精确识别理念,即取样精确、结果精确。文章提出的映象机制也可借鉴于其它类型主机的智能门禁系统。

Smart Image Card(SIC)is a new kind of feature information carrier.This paper discusses the mapping mecha-nism in which SIC card is used in the intelligent entrance guard system.The host computer is the MCS-51,Combining the characters of MCS-51and SIC card used in entrance guard system,the system divides the X-Y into blocks and makes the blocks projections,which reflects the change of0and1,as basic units.Each unit involves some subunits.And the dynamic array is chose as the sample set.Units are classified roughly and subunits are discriminated carefully.The mapping precision accords with the requirement of practicality.The anti-deformation theory of precise pattern recogni-tion,which means the result is precise if sample set is precisely chose,is included in this paper.The mapping mecha-nism is also applied to the other intelligent entrance guard systems based on mainframe.