Petri Net Based Diagnosis for Construction Design

In this paper we propose a Petri net within a diagnosis system for construction design. We assimilate the construction process with an assembly process that composes parts and/or subassemblies into a unique product. We assume that the assembly supervisor (AS) system is distributed, and it solves several local AS attached to the nodes of the Petri net model of the assembly process. The research issues that we address in this work include the modeling of assembly process, determination of cost-effective assembly planes for efficient building, and real time adoption of a plan to a given product to be assembled. This work extends the known assembly Petri nets to a powerful framework enabling to derive the diagnosis of assembly process whose path may vary, and the objective function is maximized. The presented approach can be used to evaluate transient and steady-state performances of alternative design based on a construction example. Possible extensions of the work