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.

A digital control circuit for realizing PFM and PWM and their automatic switching;

Application and realization of automatic switching optical fiber protection system;

The development orientation and technical features of the automatic switching technology of power are presented, and the structure, principle and application plan of intelligent automatic switching device of power are described.