Design And Implementation Of Mobile Phone Navigation System

With the popularity of mobile communications equipment and the rapid growth of the global mobile phone market, expanding functions of cell phones has become a trend. In recent years, with the increasing number of users and the promotion of space information services, intelligent cell phone map navigation system has gradually become a hot research topic which attracts the attention of many developers and consumers.According to the railway traffic information with cell phones and mobile devices, mobile phone navigation system provides shortest path information for mobile users. Both in the fixed place and in the course of the campaign, at any place and at any time people who with mobile phone will get the shortest path information.The authors involved in the whole system requirements analysis, conceptual design, detailed design, system implementation and system testing in the entire process, Algorithm optimization and improving system performance, which is completed independently by the author. The key point in the development of mobile applications on the memory size and response time requirements are relatively hard. The author with his analytical expertise to carry out this difficult issue and continues to optimize the data and applications, after the optimization tests and after optimization, finally solved the problem, raise the maximum cell phone navigation system performance and optimize the main algorithm.In this paper how to improve system performance characteristics of this process are discussed in detail. Optimization algorithm is the continuation and improvement methods of Dijkstra algorithm. Improving the performance of the mechanism is based on java extension of the waste recovery. These above two techniques provide a valuable reference for J2ME memory limitations of these techniques for the development of mobile applications.In introducing use UML (Unified Modeling Language. Unified Modeling Language) modeling applications. Use an object-oriented elaborate on the ideas and methods of the search function on the design and implementation of transport routes. The project to integrate the key technologies, the J2ME platform in a search inquiries transport routes and schedules function fully meet user demand, improved products to maximize performance. According to the article, software engineering analysis and implementation of a mobile navigation system and the realization of the search engine algorithm to optimize the performance of the whole system and achieve the main description.This paper is strongly practicality and valuable. From the cell phone equipment manufacturer point of view, news from SUN Company production business with the cell phone at home and abroad have launched Java; from the operator point of view, more than 30 operators in the world have launched a data value-added services based on J2ME, and has achieved tremendous success in the market; from Java mobile phone users, value-added services to attract a growing number of mobile phone users in Java, based on the above reasons, We have practical significance in the development of mobile navigation system. Initial software products to value-added services for operators of the system, and application of the good, which provide business development experience for Java development for mobile phone software development based on the geographic information.