为支持航班机坪保障指挥调度优化，提出基于Petri网的机坪保障指挥调度建模方法。构建包含服务线、模块和任务的机坪保障作业协调关联模型，实现保障过程的层次化分解；将保障作业任务分为单设备作业任务和多设备作业任务，给出其模块化赋时Petri网模型构造方法，并针对设备调派过程建模需要进行扩展；考虑作业任务之间的前置开始关联和前置结束关联两类关系，给出其对应Petri网模型之间的合成方法，并提出基于协调关联模型的保障作业指挥调度过程Petri网模型构造算法。以某航班机坪保障指挥调度建模为例，验证所给建模方法的有效性和适用性。%To support the optimization of apron service tasks scheduling,a Petri net-based modeling method for apron service process is proposed. The Coordination Correlation Model for Apron service (CCMAS) is established,including service lines,modules,and tasks,which demonstrates the hierarchal structure of apron service. The service task is categorized into single-equipment service and multi-equipments service process,and the corresponding time Petri net-based modeling approach is provide,including the extension for equipment dispatch process modeling. The composition method for different models is proposed for the front-start and front-end correlation among the corresponding tasks,and also the modeling algorithm of apron service based on the CCMAS was provided. Finally,the effectiveness and applicability of the proposed approach is demonstrated by one flight apron service process modeling.
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