摘要
设计了基于无线传输的智能小区门禁系统,介绍了系统的读卡模块、无线数据传输模块、液晶显示模块、随机密码键盘模块。设计了以大容量串行e-Flash MM36SB020为载体的16×16点阵字库。针对数据传输中易出现的网络冲突问题,在通信协议中提出了随机延时的解决方案。
An intelligent district access control system based on wireless transmission is designed. The card reading module, the wireless data transmission module , the LCD module and the random password keyboard module are introduced respectively Besides,a 16 × 16 lattice word database based on e-Flash MM36SB020 is designed. In order to solve the conflict problems of the network data transmission, a method of delaying time at random is put forward.
出处
《河北科技大学学报》
CAS
2007年第1期37-40,共4页
Journal of Hebei University of Science and Technology
基金
河北省科技攻关项目(062135119)
关键词
门禁系统
无线数据传输
随机密码键盘
随机延时
access control system
wireless data transmission
random password keyboard
delaying time at random
