2 - SYSTEM AND METHOD FOR CONTROLLING AT LEAST TWO AUTOMATED NON-PASSING RAIL MOUNTED GANTRY CRANES

摘要

Systems and methods are described for controlling at least two automated non-passing rail mounted gantry cranes 3a, 3b, 3c. The system includes, for each crane, crane control units 2a, 2b, 2c to ensure the execution of at least one work order 10a, 10b, 10c received by each crane from the external scheduling system 9. do. In order to improve crane efficiency, the system further comprises a rescheduling unit for rescheduling at least one work order based on the expected trajectories along the rails 4a, 4b determined for each work order. Rescheduling reduces the number or duration of situations by dividing at least one of the work orders into at least two new work orders, and where the expected trajectory of one crane blocks the expected trajectory of another crane, and / or This is accomplished by resequencing and reallocating the resulting work order to reduce workload imbalance between cranes. The rescheduling unit is operated in parallel with the crane control units 2a, 2b, 2c, ie during the execution of the original work order, and dynamically updates these original work orders.