Innovation ofJ7/ACautomatic transfer control system for winding head;

Problem on automatic switchover of power supply of seed splitting tank stirring device was resolved by use of Siemens S7-200 PLC.

This paper advances the conception of a multipath automatic switchover fault-tolerant system,analyzes and computes the reliability and mean time between failures (MTBF)of the system,so that a two-path automatic switchover fault-tolerant system is implement-ed.

Regarding to the input method switch question caused by the coexistence of Chinese and English data item commonly in Chinese application system,the paper put forward a new clue and method to realize the automatic switchover between Chinese and English input method by using the Windows API function,by a brief demonstration,it displayed the implementation in the practical application system.

This paper describes the driving design of double net switching for Intel 82559 10/100M adaptive net card in VxWorks operating system,firstly illustrates the concrete collocation method to support multiple net adaptors in VxWorks,then gives a design method to make Intel 82559 and 82559ER double net adaptors being spare parts for each other and auto-switching on the SBS PC104 hardware platform.

Research on automatic switch conditions for hybird FSO/RF system;

The PLC Application of Medium Wave Antenna Automatic Switch System of Radio & TV Transmitting Station;

Double-power supply automatic switch system requires high reliability and real-time.