摘要
介绍了一种基于网络的ID卡读卡系统的软、硬件设计。在软件设计中采用构建哈希链表的方式对有效ID卡进行存储,缩短了读卡器对有效卡检验的时间消耗,提高了系统的实时性和可靠性,通过在串口中断处理中增加多层判断,解决了读卡模块和单片机的串口通信中出现的非有效数据的问题。硬件上采用MCU+NIC的方式实现Internet的接入,可以在任何接有因特网的地点安装网络读卡器进行远程的读卡操作与实时数据交换。经测试证明,读卡器具有工作稳定,实时性好,功耗低等特点,并通过了镇江市科技局组织的专家鉴定。
The design of the software and hardware adopting by the ID card system based on network is explored. The utilization of construction HASH chain on the ID card greatly reduces the waste time in the examination process conducted by network card reader towards the valid cards. Therefore, the response speed and security of the system is immensely improved. By means of adding multi-layer judgment in the serial port interrupt processing, the design efficiently tackles the invaliddata from the communication between the cards read module and the MCU. The linkage to the Internet using MCU plus NIC, which can install network reading card at any location where you can connect to lnternet, to read card and exchange real-time data. Subject to the multi-times tests, the card reader is proved to be very stable, timing efficient and low cost, and through Zhenjiang science and technology bureau organization＇ s experts＇ appraisal.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第21期5595-5597,共3页
Computer Engineering and Design
基金
镇江市科技攻关基金项目(GY2005023)
