Hybrid Control Based On Petri-net For Multi-Agent System Of Engineering Machinery Cluster

The significance of developing intelligent engineering machinery of cluster is stepping up the manufacture level of engineering machinery and the construction level of national significant item, and advancing the competitiveness of national engineering machinery industry and equipment level of national construction equipment with new technology. There are many problems in road construction nowadays, such as the illogical configuration of machinery of cluster, the lack or overstock of material, the low efficiency of construction, and the high intensity of work. This paper apply the most advanced technology of artificial intelligence——multi-agent system to intelligence realizing of high way construction machinery of cluster,and study the material supply chain of multi-agent system of engineering machinery of cluster and the modeling of hybrid construction process especially with Petri-net. The first, it gives the hybrid layered multi-agent system configuration of road construction machinery of cluster with the method of integrating centre control and distributed control for predigesting system design and reducing system last cost. At the same time of advancing system agility and robustness, this configuration can ensure the system reaction speed and not increase system complexity. Second, it models and simulates dynamically the parallel, asynchronous, distributed and concurrent workflow of machinery of cluster with intuitionistic and visual figure, and give the effective controlling strategy of optimal collocating and dynamic attemperation, be dead against the asynchronism and concurrent character of machinery of cluster, which result from that MAS loosens the restricting for centrality, programming and gradation controlling and offers the mechanism of separated controlling, meeting an emergency and parallel disposing. The last, it gives the differential Petri-net model for hybrid control of machinery of cluster construction process, enacts the discrete control event and continuous control variable, and designs the control rules. In one word, this paper studys the system configuration, the material supply chain and construction control process of machinery of cluster preparatory, with multi-agent, Petri-net and hybrid control technology, which can lay a good foundation for the farther particular design of machinery of cluster.