智能交通中定位導(dǎo)航系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)
[Abstract]:In the construction of modern cities, intelligent transportation is widely used, including traffic planning, design, management and intelligent navigation and scheduling. In the above aspects, the navigation system has the core role, and is the foundation of the intelligent transportation function implementation, has the important foundation significance. Navigation system provides an efficient visual information presentation and processing method for traffic system managers and users. Map navigation and positioning subsystem can effectively alleviate traffic congestion, according to the real-time situation timely and effectively solve traffic accidents, traffic failures, in many aspects of high practical significance and use value. This paper designs, implements and tests a navigation system. This system plays an important role in intelligent transportation system. As a core component of intelligent transportation, the system provides vehicle users and managers with accurate location of vehicles and geographical location, thus providing an optimal path navigation line for all kinds of vehicles. Furthermore, the system can effectively avoid traffic congestion and ensure the smooth flow of traffic during the rush hour, so that the users of the system can reach the final place from the starting point at a predetermined time. The system uses the international leading ArcGIS technology to display the monitored vehicles and traffic accident prone points in the corresponding position of the electronic map in real time. At the same time, the basic operation functions of the electronic map system such as magnification, reduction and translation are also taken into account. This paper provides a real-time query interface and a large-scale geographic information receiving, processing and conversion module. The navigation system in this paper is based on the classical shortest path Dijkstra method to realize the fast real-time response to various navigation requirements. At the same time, one of the important features of the system is to optimize all kinds of queries according to the user's real-time query requirements to shorten the execution time of the system query. The ultimate purpose of this system is to provide the vehicle users with a realistic optimal route between the vehicle and the destination on the map interface while providing real-time correction and referential difference. In the aspect of realization, this system uses ArcGIS., a GIS platform software developed by ESRI, a mature electronic map manufacturer in the world. At the same time, reference to a variety of related API language package for the implementation of the system. In the aspect of system framework, this paper adopts the general enterprise JAVA model framework to develop. This framework is the main implement tool of the peripheral intelligent transportation platform. As an important part of intelligent transportation, the system is designed and implemented on the basis of J2EE ArcGIS model. Furthermore, to some extent, the system solves a series of technical problems, such as long map response time, inaccurate path calculation and wrong path display. These problems seriously affect the user experience of navigation system. Finally, the system presents a user experience of an efficient navigation system.
【學(xué)位授予單位】:東北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:U495;TN96
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