摘要
以嵌入式处理器(ARM)作为核心处理芯片,以指纹作为载体,通过控制器局域网(CAN)总线来实现上位机与门禁节点控制器的通信,完成了门禁系统的基本功能。该系统弥补了以往门禁系统中依赖单片机作为主要控制芯片的存储空间不足及扩展能力有限的弊端,并将人体生物特征应用到门禁系统中,利用人体生物特征的唯一性大大提高了门禁系统的安全性,促进了门禁系统的向前发展。
With embedded ARM processing chip as the core,fingerprint as the carrier,and through the CAN bus,the communication between upper-position machine and entrance guard node controller is realized,thus implementing the basic functions of entrance guard system.This system could remedy the shortage of storage space and limited expansibility in former entrance guard system with monolithic integrated circuit as the primary control chip.And the human-body biological features are also emplyed in the entrance guard system,and with the uniqueness of human-body biological features,the security of entrance guard system is greatly improved uniqueness,and the development of entrance guard system is promoted.
出处
《通信技术》
2010年第10期117-119,共3页
Communications Technology
关键词
嵌入式处理器
控制器局域网
上位机
节点控制器
生物特征
embedded processor
controller area network
upper-position machine
node controller
biometric
