| Summary: | 碩士 === 建國科技大學 === 電子工程系暨研究所 === 102 === In this paper object is designing a PC-Based control system for an electro-hydraulic servo press machine system to realize precision position control. The key future is using LabVIEW software designed discrete PID controller and discrete fuzzy controller to obtain the hydraulic cylinder moving control to realize precision position control. And, this project combined the wireless remote control technique and closed wrap transmission technique to realize remote control. However, in the hydraulic system the oil is compressible and the system parameter variable can be affected by the oil temperature, the hydraulic servo system performances can be more affected by these disadvantages, the proportional controller is difficult to achieve precision position control. The discrete controller has been designed to drive the servo valve shaft moving direction and opening the fluid hole area to implement hydraulic cylinder precision position control. However some workspace is very bad circumstances, people can’t manipulate on both sides of the machine. Using single-chip microcomputer with Xbee-PRO wireless communication module designed remote controller to realize the remote control. Whatever the remote control and the PC direct control, through the constructed electro-hydraulic servo press machine system experimental testing, in the cases of step, multi-step, sinusoidal, and repeat steps position command inputs, the test results show that the proposed control schemes have better tracking precision performance of the servo press machine.
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