Remote control scheme for cranes using electro-hydraulic servo positioner with coaxial rotary spool

동축 회전형 스풀을 가진 전기 유압 서어보 위치 제어기를 이용한 크레인의 원격제어

A position control system is developed for an electro-hydraulic servo actuator with coaxial rotary spool, where the actuator is controlled by stepping motor. The position control system is utilized to develop the wireless remotely controlled crane system. And remote engine control system is also developed. Finally, to show the validity of this system, some experimental results and field test results am presented.