System and method for controlling at least two automated non-pass-through track-mounted gantry cranes
A gantry crane, crane technology, applied in cranes, trolley cranes, transportation and packaging, etc., can solve technical problems such as increased risk of system failures, improve container throughput, reduce energy, reduce travel time and travel distance Effect
Active Publication Date: 2019-01-15
ABB (SCHWEIZ) AG
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Problems solved by technology
In addition, an entire change in the operating system always leads to technical problems and increased risks of system failure, at least initially after such a change has been carried out
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[0078] in figure 1 A simplified diagram is shown in, which shows a container yard 1 of a container terminal, which contains a considerable number of stacked containers 8. Generally, a container terminal may contain several such container yards. The container yard 1 includes three automated stacking cranes 3a, 3b, and 3c. The ASC 3a, 3b3c are arranged on a pair of rails 4a, 4b so that they can move between the first transfer area 5 and the second transfer area 6, and pass through the middle position between the first transfer area and the second transfer area. Main container storage area. Because ASC uses the same pair of tracks 4a, 4b, they cannot pass through each other. A more common arrangement in a container yard is the use of two non-through ASCs, also known as dual RMGs.
[0079] The transfer area is an area belonging to the container yard and is located at one of its outer ends. In this transfer area, the container can be temporarily lowered by ASC 3a, 3b, 3c, and then...
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A system and method for controlling at least two automated non-pass-through rail-mounted gantry cranes (3a, 3b, 3c) are described. The system comprises a crane control unit (2a, 2b, 2c) for each crane for ensuring that at least one work order (10a, 10b, 10c) received by the corresponding crane from an external dispatch system (9) is executed. In order to improve the efficiency of the crane, the system further comprises a rescheduling unit which performs a rescheduling of at least one work order based on the determined expected trajectory along the track (4a, 4b) for each work order. This rescheduling is achieved by splitting at least one work order into at least two new work orders, and by reordering and reassigning the resulting work orders, thereby reducing the expected trajectory of one crane from obstructing another. The number or duration of situations where the expected trajectory of the cranes is expected and / or the workload imbalance between the cranes is reduced. The rescheduling unit operates in parallel with the crane control units (2a, 2b, 2c), ie during execution of original work orders and dynamically updates these original work orders.
Description
Technical field [0001] The present invention relates to a system and method for controlling at least two automated rail-mounted gantry cranes that cannot cross each other. The system includes a crane control unit for each crane, which includes at least one control input interface and at least one control The input interface is used to receive at least one work instruction at a time from the dispatching system, and is used to receive at least one sensor information, which reflects the execution of the at least one work instruction by the corresponding crane, wherein each work instruction specifies that the corresponding crane At least one starting position and ending position of the moving target container. The crane control units also include a control processing unit and at least one control output interface. The control processing unit is used to process at least one work instruction and at least one sensor information to generate control information for ensuring that at least...
Claims
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IPC IPC(8): G06Q10/08B66C13/48B66C19/00
CPCB66C19/002G06Q10/087B66C13/48G06Q10/06312G06Q10/08B66C19/007
Inventor S.萨利巴B.亨里克森H.诺伦S.伊斯拉尔森坦佩S.施密特A.扎纳里尼K.穆克斯费尔特
Owner ABB (SCHWEIZ) AG