The paper mainly discusses the automaticswitching of the logic estimation circuit of the drum boiler's water level protection system.
文章主要讨论了锅炉汽包水位高低保护系统逻辑判断回路的自动切换。
2
Principle, circuit design, hardware structure, software flow and features of dual computer switchingcircuit of FTK-3 hump automatic control system are introduced in this paper.
本文介绍了FTK-3型驼峰自动控制系统双机切换电路的原理、电路设计、硬件结构、软件流程和特点。
3
A extendible Video-Audio Switcher circuit by hand-selecting or automatic sequential switching was intro duced.