【作者】 王玉婷；

【导师】 韩松臣； 汤新民；

【作者基本信息】 南京航空航天大学 ， 交通信息工程及控制， 2010， 硕士

【摘要】 随着航空运输量的持续增加和机场不断的扩建,场面活动及管理也日趋复杂,迫切需要实施先进场面活动引导和控制系统,改善场面服务质量,保证场面交通安全,提高机场运行效率。本文主要研究场面活动引导与控制系统中的控制和路径规划关键技术,为完整实现整个系统进行了一定的理论性探索。本文将基于Petri网的离散事件监控理论运用于场面活动引导与控制问题中。首先将跑道、滑行道和停机坪等活动区域离散化,根据离散元到Petri网基本元素的映射,建立了基于Petri网的场面活动模型。其次,利用线性不等式定义场面活动控制规范,将场面航空器的冲突转化为状态禁止问题,利用基于库所不变量的控制器设计方法来设计满足控制规范的控制器,从而避免跑道系统的入侵冲突和滑行道系统的对头冲突等。同时,针对交叉口的交叉相遇,借鉴扩展Petri网中抑制弧的概念,控制航空器在交叉口的运行顺序,从而使建立的场面活动Petri网模型满足机场运行规则。根据先进场面活动引导与控制系统的滑行路径规划需求,提出了滑行路径规划的三层次体系两阶段控制的总体框架;以滑行时间最短为路径规划目标,对传统Dijkstra算法进行改进,计算出静态预选路径库,将静态预选路径作为可行解对滑行路径进行动态规划,得出最优滑行路径及其活动时间窗;并实施在线路径更新,根据场面状态变化情况动态调整路径时间窗以避免航空器发生冲突,提高场面管制自动化水平,降低管制员工作强度。最后设计了先进场面活动引导与控制仿真系统的框架。更多还原

【Abstract】 With the continuous increase of air transportation and the expansion of airports, the movement and management on airport surface is becoming complex. To guarantee safety of surface movements and improve the efficiency of airport operation, it is an urgent need to develop the advanced surface movement guidance and control system (A-SMGCS). This paper focuses on the controller synthesis and route planning technology of A-SMGCS, and processes some theoretical investigate for the development of A-SMGCS.The discrete event supervisory control theory is used for A-SMGCS in this paper. Firstly, the runway,taxiway and apron is dispersed. The surface structure model is built according to the mapping between the discretizations and the Petri nets elements. Surface movements control regulations are described as linear inequality. The conflicts among aircrafts are transformed into forbidden states in the Airport Surface Movements Model. Then, the surface controllers satisfied the regulations are designed by controler’s design method based on concept of Petri nets place invariants. Once the controllers are completed, the runway incursion conflict and taxiway opposite conflict are avoided. Considering the intersection meets, the inhibitor arc conception in extended Petri nets is adopted to design controllers which can make aircrafts move orderly at the cross. The surface movement model built with Petri nets fulfils the airport running rules.According to A-SMGCS route planning requirements, the three-layers and two-staged scheduling general framework is proposed for aircraft taxi route planning. The static preelection route database is gained through improving the traditional Dijkstra algorithm. The dynamic route plan is implemented based on the static preelection routes. The optimal routes and their movement time windows are calculated. According to the surface state change, the time windows are adjusted dynamicly to avoid conflicts among aircrafts. With the implementation of A-SMGCS, surface control automatic level is improved, and the workload of controller is reduced. Finally, the simulation system of A-SMGCS is designed in this paper.更多还原