METHOD FOR OBTAINING POSITION PARAMETERS OF TAIL END OF JIB SYSTEM, JIB SYSTEM AND ENGINEERING MACHINE

摘要

Provided are a method for obtaining position parameters of a tail end of a jib system, a jib system, and an engineering machine comprising the jib system. The method for obtaining position parameters of a tail end of a jib system comprises: first obtaining an inclination angle of each arm before deformation, and reference lengths of each arm before and after deformation; then determining change of an inclination angle of a corresponding arm according to the lengths of each arm before and after deformation, then obtaining change of the length of each arm in a predetermined direction according to the change of the inclination angle of each arm, then calculating a sum of lengths of all arms in the predetermined direction, and obtaining position parameters of a tail end of a jib system. The method for obtaining position parameters of a tail end of a jib system not only may avoid an accumulative error generated because of the precision of an inclination angle sensor, but also may detect reference lengths of each arm before and after deformation through an appropriate length sensor, thereby easily ensuring the detection precision of the reference length of each arm, and more precisely obtaining an actual inclination angle of each arm, so as to enable position parameters of the tail end of the jib system to be more accurate.