智能式电子打铃器的原理与设计

智能式电子打铃器，以8031单片微机为核心，采用新型的内具掉电保护功能的集成日历时钟芯片，简化面板按键和内部电路设计，用最少的硬件开销，由软件实现打铃时刻表的预置与修改，实现实时时间的显示、校正和铃响控制，软件采用子程序模块化结构设计，使程序功能强，调试效率高．此种响铃器实际为一种可编程时间控制器，它提供定时控制输出接口，可方便地用于各种定时控制．

Principle And Design of Intelligent Electronic Ringer

The intelligent electronic ringer, with single chip microcomputer as the centre, involves a new type integrated calendar clock chip which has protecting capability when power has been cut off.Designs of the board-keys and intemal cireuits have been smplified. With the least cost, pre-setting and modifying of the ringing time list, a display and adjusting of real time, and ringing control have been realized by soft-ware. The software uses design of subprogram eodular structure. It strengthens the program capability, and hightens adjusting efficiecy. This ringer is really a kind of programmable timing control ler. It provides interface of timing control output for us and it can be conveniently applied to all kinds of timing control.