Interactive Control Systems for Mobile Cranes

Abstract

The paper presents an invented interactive control system for mobile lifting devices, particularly for loader cranes. The proposed innovative system is comprised of modules, output signals from which are sequentially transformed into a commands sequence corresponding to the motion strategy, related to incremental changes of position or motions depending on the distance to the end position. In the system, the commands sequence related to the position of the operating element corresponds to the trajectory optimization strategy in accordance with the positioning time minimization criterion, total length of the path of motion minimization during handling, or maximization of the safety indicator. An innovative processing scheme, using several functional modules, for the interactive control system has been presented, covering also the use of anti-patterns of normalized commands and standardized strategies, and analysis of crane stability. The invented system solves the problem of effectively controlling lifting devices during tasks requiring increased efficiency, safety, speed and precision.