METHOD OF LIFTING CRANE CONTROL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2008 - IPC B66C13/18 

FIELD: technological processes.

SUBSTANCE: method includes determination of crane equipment position and estimation of weight gripping device load, initiation of crane equipment movements by operator and disconnection of equipment crane drives in case of overload. Before crane equipment position is determined, coordinates of obstacles on the site are memorized. Contours of obstacles are formed in the memory of processor and are represented on the display, and basing on the signals of crane equipment position sensors the coordinates of initial position of weight gripping device are determined, coordinates of final position of weight gripping device are set, then memorized and displayed. When crane operator initiates crane equipment movements, expected trajectory of weight gripping device is defined and displayed. If no contours cross, directions of crane equipment independent movements are determined, every one separately, for delivery of weight gripping device into the final destination point along the shortest route in the shortest time period, and in case of obstacles contours crossing by expected trajectory of weight gripping device movement, the optimal trajectory is determined, memorized and displayed. Movement of weight gripping device is done in loads bouncing suppression modes, overload crane protection and obstacles collision protection modes, under weight gripping device movement speed reduction with further braking and movements block. Device contains processors, "n" crane equipment position sensors, load detector, unit of obstacles coordinates setting and setter of final coordinates of weight gripping device, display, and drive control unit.

EFFECT: reduces dynamic loads and increases safety.

7 cl, 2 dwg