A new operational assistance system for rough terrain crane by interactive adaptation interface

Summary form only given. Rough terrain cranes are frequently used in construction sites. They have excellent mobility and operativity, but the operator must use several levers at once, and the payload oscillates and it is hard to know its state. The authors propose an intelligent system to assist operators. Interactive Adaptation Interface (IAI/F) is used. The control system is complex. The authors made a new joystick for crane operation. The joystick has two merits: operators can easily understand how to control the crane because the control direction of the joystick is based on actual crane motion, and operators can use additional useful information for safe operation. To confirm effectiveness of proposed system, an operation experiment is performed. The subject controls the jib hoist angular velocity by the joystick to suppress the payload swing with/without force display. Average completion time was improved by using the force display. Thus, we confirm that force display is effective for crane operation.