Design And Research For The Crane Management System

The development of automatic control technology is developing, the bridge type grab unloading ship machine entered the era of semi automatic control or automatic control from the manual operation time. Then, the automatic control of bridge type grab unloading ship machines is a successful case of using the automatic control technology in the practice. The driver is extricated from the hard work.In the process of the automatic control for unloading ship machines, there exist two problems for example containing the grab swing and motion trajectory optimization problems. In order to solve the problem of grab swing in the practical operation, the system analysis must to be took into the machine. In this paper, we analysis the grab in the running process, the relation of the horizontal small car acceleration and deceleration with the grab swing is find. Beside, we work out the complete model on the grab.In order to inhibit the grab swing and optimize operation time in a certain distance, two operation plans of grab unloading ship machine car in the horizontal direction are given in this paper. After we apply simulation software ADAMS to validate the plans, the two kinds of motion modes solve the swing of grab effectively. For improving the efficiency of grab unloading ship machine further based on the result of grab, the motion trajectory of bridge type grab system is optimized in this paper. Through the establishment of differential equations, we design a grab trajectory in the optimal path, the grab unloading ship machine’s working time is decreased and the efficiency is improved. Then, the effectiveness of our algorithm is verified by using ADAMS software to simulate the results.Finally, the results are applied in practical process of grab unloading ship. Then, the dynamic weighing system is introduced, and the PLC configuration is selected and the program is designed by the principle of this system. Finally, based on the research and application of our work, grab unloading efficiency has been greatly improved. And, the safety performance of grab during operation is guaranteed.