Intelligent dispatching system and method for multi-AGV (Automatic Guided Vehicle) of automatic container terminal

An automatic guided vehicle and automated terminal technology, which is applied in instruments, data processing applications, forecasting, etc., can solve problems such as low decision-making efficiency, traffic congestion and deadlock, and the lack of AGV autonomous collaborative avoidance and rapid execution measures for emergency tasks. Achieve the effect of improving self-learning and rapid response measures

Active Publication Date: 2016-07-06
SHANGHAI MARITIME UNIVERSITY
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Problems solved by technology

In short, this scheduling mode is static, and the decision-making efficiency is low, which hinders the improvement of job efficiency
[0006] (2) Static path planning is difficult to avoid spatio-temporal interference, which is likely to cause traffic congestion and deadlock
[0007] (3) Lack of a priority allocation mechanism for emergency tasks, and insufficien

Method used

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  • Intelligent dispatching system and method for multi-AGV (Automatic Guided Vehicle) of automatic container terminal
  • Intelligent dispatching system and method for multi-AGV (Automatic Guided Vehicle) of automatic container terminal

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[0054] In view of the complex coupling and interaction relationship between multi-AGV task assignment and path planning (in terms of time, space, and information), this invention uses the idea of ​​complex system decoupling to decompose each operation link into modules, separate planning and scheduling, and pass two-level The new dispatching mode delegates the task set of AGV operations, real-time feedback of AGV operation status information and rolling forecast of traffic flow, eliminating or reducing the influence of uncertain information in the complex operation environment of the terminal. Improve the intelligence level of AGV through self-decision, self-organization and self-learning, and realize the dynamic scheduling of multi-AGV collaborative operations (cooperative optimization of dynamic task allocation and dynamic path planning), so as to solve the current centralized decision-making mechanism, static task allocation and static path planning. Unresolvable node confli...

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Abstract

The invention relates to an intelligent dispatching system and method for a multi-AGV (Automatic Guided Vehicle) of an automatic container terminal. The two-stage distribution control dispatching mode of an operation plan and dispatching decoupling separation is realized through a container terminal management information system and an AGV group intelligent dispatching system. A knowledge learning method is used; an AGV dispatching knowledge management module is built; an AGV task case base, a path case base and a knowledge base are continuously enriched and optimized; and the AGV self learning, self organization and self decision capability are improved. Through the rolling prediction on traffic flow in a road network space of the automatic container terminal and the calling of the knowledge base, the AGV task case base and the path case base, the collaborative optimization is performed on the task dispatching and the path planning of AGVs. The invention provides an AGV path planning strategy including the optional path and free path mode; the path plan in the conventional task can be ensured; and the fast response measures can also be provided for emergency tasks.

Description

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Application Information

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Owner SHANGHAI MARITIME UNIVERSITY
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