| For recent years, there's a significant boost of the national civil aviation air traffic. Due to the way of control behind, the scheduling in arrival/departure airport scheduling system is in low efficiency, busy airports and terminal areas often suffer from air traffic congestion. To solve the problem above, the paper researches on the coordination model with dynamic and open for arrival/departure airport dispatching system using software coordination technology, which can improve scheduling efficiency. The model provides a theory framework and technology support for the arrival/departure airport scheduling systemFirstly, the basic knowledge of air traffic management is introduced, and the background and the state of the art of software coordination technology are surveyed. The related work in the areas of software middleware, coordination models and languages is discussed. The advantages and disadvantages of these technologies are pointed out.Secondly, a system coordination conceptual model for arrival/departure airport scheduling is described by introducing the concept of the role. The model is divided into three layers: coordinated entity layer, role layer and coordinator layer. The non-functional behavior is separated from traditional entities based on the principle of separation of concerns, and is abstracted as coordinators and roles. The coordinated entities are evolved as true functional entities, which finish system function, role layer and coordinator layer are responsible for coordinate the coordinated entities. Consequently, the function of the system and the coordinative behavior are separated.Finally, the key technology is presented based on the system model, and the design and basic processes of the main component modules are analyzed further. A dynamic binding method to adapt to environmental changes and an architecture dynamic evolution method are presented using the technologies that the system model provides. The adaptability and feasibility of the system model is demonstrated by studying a case, which can solve these problems of open, dynamic and service in the arrival/departure airport scheduling system. |
