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摘要：随着无线移动通信的高速发展及各种移动业务种类的快速增长，一切互联网上的业务都在移动通信系统中得到应用。然而，由于用户需求的原因，或者终端支持与否的因素，并非所有手机都能正确显示同一信息内容。而且随着客户端设备的类型越来越多，人们对个性化服务的要求越来越高，个性化信息服务成为将来网络信息服务发展的一个重要的方向。
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移动终端是一种采用先进通信协议栈的复杂系统，它需要具有与许多网络设备互操作、支持先进而丰富的多媒体的应用程序。而且，所有这些都必需在一个资源有限的嵌入式系统的约束条件下实现。Android技术提供了跨平台的能力，并支持多种器件设备。Android技术为无线设备创建了一个全新的开发平台，可以让移动通信设备发挥出最大的潜能。Android手机作为移动终端为今后移动通信发展提供了很好的解决方案。
本文对Android系统的特征，系统架构及应用程序构建、开发都做了比较详细的分析。同时结合Baidu Maps、GPS定位技术、对在Android上定位和导航进行了深入的研究，并设计了基于Android系统的公交路线查询应用。系统使用java语言和Eclipse开发工具进行编写。同时给出了详细的系统设计过程、部分界面图及主要功能运行流程图，本文还对开发过程遇到的问题和解决方法进行了讨论。 24491
本系统的主要实现的功能有实时定位、公交线路查询、公交信息查询还有调起导航的功能。其中，公交查询不仅能显出多个路线，而且还能够根据用户选择的线路实现电子地图的显示，使功能更加直观。
毕业论文关键词： 安卓，电子地图，GPS，公交线路
The research of the travel-assist system on Android os & Google Map API
Abstract: With the rapid development of wireless mobile communication and the rapid growth of the mobile business types, all business on the Internet in a mobile communication system. However, due to reasons of user needs, or whether or not the terminal supports the factors, not all phones can correctly display the same information content. And more and more with the type of client device, more and more personalized service requirements, personalized information service has become important direction of the future development of a network information service.
Mobile terminal is a complex system with advanced communication protocol stack, it needs to have interoperability with many network devices, and support advanced rich multimedia applications. Moreover, all of which must be implemented in a resource-limited embedded system under restricted conditions. Android technology provides cross-platform capability, and supports a variety of devices devices. Android technology for wireless devices to create a new development platform that lets mobile communications equipment to play the greatest potential. Android phone as a mobile terminal provides a good solution for the future development of mobile communication.
In this paper, the Android system characteristics, system architecture and application build, developers have done a more detailed analysis. Combination Baidu Maps, GPS positioning technology, positioning and navigation android conducted in-depth research and design of bus routes Android-based query application. The system uses the Java language and Eclipse development tools to write. At the same time gives a detailed system design process, part of the interface diagram and operation flow chart of the main function of the development process, the paper also encountered problems and solutions are discussed.
The system functions of the main transfer query line query and site search function, not only can show the results of the query, but also to the electronic map display based on user-selected line, to make the system more intuitive.
Keywords： Android, Electronic map, GPS, transfer query line
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