Automatic Measurement of Swing of a Crane Lifter and Relative Position of a Load

Abstract

Depending on the size and weight of the load being transferred, various types of cranes are used in industry. Many attitude measurement and control systems for crane lifters have been developed. These systems are mainly used to suppress swings of the lifters when the trolleys come to a stop. To improve the efficiency, however, not only the measurement of attitude but also the exact load position is important. Therefore, is developed, for a cylindrical object such as an iron-plate coil, an automatic sensing system which uses fiber optical gyros and range sensors to measure the swing of the lifter and the load position.