| The increasing use of cars has brought serious problems,such as car exhaust pollution and traffic congestion.The green,convenient and modern tram has become the focus on the development of urban public transportation at home and abroad.As for speed,transport capacity and cost,the modern tram is a kind of transportation which is between bus and large-capacity rail transit.It is used widely.The tram operation management system is the core of the tram signal system.It dispatches and commands the operation of the tram safely and efficiently.The safety operation of the operation management system is related to the closely co-operation between the tram and ground.The rationality of line arranged by the operation management system is crucial for the tram operating efficiency.The rationality of schedules which is arranged by the operation management system relates to the ride efficiency of the passengers.In order to test the stability of operation management system and the ability of schedule arranged,it is necessary to design the tram operation management simulation system which provides the operation simulation environment for OCC.The system can reduce exploration works in the actual research stage of the operation management system.The simulation system can provide a large number of effective test data to achieve a complete test of OCC,and the test can ensure the function and performance of OCC.The simulation system can meet the test needs of OCC in the industrial production.This paper studies the operation management system at first,and then designs the functional requirements and the structure of the tram operation management simulation system according to the tram running process.On this basis,the operation management simulation system is designed in detail.The main contents are as follows:Firstly,the tram signal system is introduced.Then,according to the functions of the tram operation management system and the tram running process,this paper analyzes the functional requirements of tram operation management simulation system,determines the simulation contents of the system,and put forwards the overall design scheme.The paper analyzes the current simulation technology.Considering the functional requirements of the system,the paper uses the form of application development to realize simulation.Secondly,the module structure of the operation management simulation system is put forward.The paper designs the data flow of the system,analyzes the interactional data between the modules.According to the graphics standard of railway signals,this paper analyses of the interaction logic between the modules.According to the railway signal graphic symbol standard,this paper uses XML document to manage the drawing data which can be used to draw graphics on the man-machine interface.Finally,the paper designs and implements the internal functions of the modules.Thirdly,the paper analyses,designs and realizes the safety communication between OCC and the tram operation management simulation system based on the RSSP-1 protocol.Fourthly,through debugging the tram operation management simulation system,the basic functions of the system are tested.The results show that the system realizes the simulation functions of tram operation and signal equipment.The system can provide the simulation environment for OCC and meet the requirement of providing test data to OCC.And the system has a strong human-computer interaction capability and many practical functions. |
