METHOD OF AND DEVICE TO CONTROL LOAD LIFTING MECHANISMS WITH RECORDING OF THEIR CHARACTERISTICS Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: when signals proportional to load lifting mechanism characteristics exceed threshold level in preset time interval, control signals are formed, and signals and time of their appearance are recorded in fixed nonvolatile memory. Device has digital independent unit, digital storage unit, parameter transducers, timer and digital controlled filter. Device can be adapted to different load lifting mechanisms by simple correction of program. EFFECT: enlarged operating capabilities owing to possibility of storage of all required parameters of load lifting mechanisms and recording of time of appearance of critical situations. 3 cl, 3 dwg