Design on the serial communication of the measuring and controlling systems for the hydraulic pressure and rotate speed in the friction welding machine;

Implementation of serial communication between personal computer and C8051F000 in sampling of heart sound;

Parameter setting of DSP-based servo system via serial communication;

The thermal parameters monitoring system of industrial mini-steam turbine was developed, which was based on serial port communication.

0 to design the serial port communication program.

Then it discusses in detail the steps of realization and part of functions of developing the serial port communication program under eMbedded Visual C++4.

The program design of series communication between PLC and computer;

The system uses communication interface such as RS-232 to accomplish series communication between PC and data acquisition machine,which realizes real-time acquisition and supervision of the motion parameters of vehicle and data analysis under support of the database system in order to achieve the evaluation of auto-braking performance.

Power Builder is one excellent toolkit of establishing application system of database, but it did not provide the command, function and control of series communication.

On basis of the serial communications technology of Visual Basic code and the working principle of the automatic concrete mixing plants used for the construction of the passenger-dedicated railways,the author expounds on the principle of the automatic control of the construction machinery by means of the serial communications technology of Visual Basic 6.

It takes microprocessor as a core functions at automatic diagnosis of failures,such as overload,short phase and short circuit,and serial communications.

The authors expound a communications mechanism under Windows 32 bit platform and a method for the preparation of serial communications software with the use of VB.