摘要
介绍一种反射式光断续器与 89C5 1单片机构成的智能小区邮件通知系统 ,着重讨论了以反射式光断续器为核心的邮件检测器工作原理和特点 。
A mail informing system is introduced with the core that consists of the 89C51 single chip processor and reflective photo interrupter modules.The principle of the mail detector reflective photo interrupter modules and its usage points for attention are discussed emphatically
出处
《传感器技术》
CSCD
北大核心
2002年第2期51-52,55,共3页
Journal of Transducer Technology
关键词
单片机
反射式光断续器
邮件通知系统
智能小区
single chip processor
reflective photo interrupter modules
mail detcctor
mail informing system
