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- W4387068045 abstract "In this paper, we propose a novel algorithm to solve multi-agent task assignment and path finding (MATAPF) problem in the Federated Internet of Things (FIoT). Conventional MATAPF studies mostly take the form of two-phase planning that assigns tasks to the agents, then finds inter-agent collision-free paths to accomplish these tasks. In contrast, we consider the task assignment problem and the path finding problem at the same. The agents can adjust their paths according to the changing task assignment situations such that all the tasks can be finished in the minimum distance cost. This is realized by constructing an automaton model to incorporate the movements of the agents and the execution process of the tasks. An optimal controller is designed to assign each newly issued task to the most appropriate agent and to control all the agents to their target positions safely (without collision and deadlock) and efficiently (in the minimum distance cost) at each time step. Additionally, when we construct the roadmap for multi-agent path finding, we consider the kinematic constraint of each agent. That is, from any position of the roadmap, all its successive positions are physically reachable to all the agents, which can improve the efficiency of the path planning, especially when there exist a large number of agents. As a case study, we then apply this online control scheme to model and control a warehouse automation system, which is a common FIoT application scenario. Simulations in various layouts of the warehouse demonstrate that MATAPF significantly outperforms standard approaches, i.e., solving more problem instances much faster. The effectiveness of the proposed framework has also been tested for a increasing number of agents." @default.
- W4387068045 created "2023-09-27" @default.
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- W4387068045 date "2023-01-01" @default.
- W4387068045 modified "2023-09-27" @default.
- W4387068045 title "Online Multi-Agent Task Assignment and Path Finding with Kinematic Constraint in the Federated Internet of Things" @default.
- W4387068045 doi "https://doi.org/10.1109/tce.2023.3319043" @default.
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