Coupled model for simulating infrared radiation temperature of soil-vegetation mixed terrain surface
土壤—植被混合地表红外辐射温度场的耦合建模方法*

For the implementation stage of a construction project,in order to effectively carrying out the resources management and optimal allocation,this paper proposed a resource model based on hierarchical timed colored Petri nets,which could accurately express the resource allocation, task duration and information transmission.After analyzing the resource characteristics of the implementation stage of the construction project,defined a non-empty color set in hierarchical timed colored Petri nets.And furthermore,it studied the hierarchical modeling of resource management and the basic model of resource allocation and resource return,then solved the key issues of building resource model based on hierarchical timed colored Petri net.At last,based on the above model theory,it built a resource management model on an instance of the implementation stage of an industrial and civil building.Through the simulation result,test and verify the correctness and effectiveness of the model based on hierarchical timed colored Petri net finally.