该文件为ORCAD绘制的通用开关量板电路原理图，可以兼容N多种数字电路，采用24V直流供电，输出电流0-50mA可以驱动大部分弱点开关，接触器，继电器，指示灯，步进电机等，具有隔离抗干扰，常闭或常开可自主选择，多达12路数字量输出的优点。-The document for the general switch ORCAD drawing of the circuit board schematics, can be compatible with N variety of digital cir

有限干扰下的单向中继选择；基于多种选择策略 有篇比较好的paper 还有就是仿真的程序 test4是最后两个图的 有点小问题 -Limited interference unidirectional relay selection strategy papers based on multiple choice paper there is a better simulation program test4 last two graphs is a little problem