基于LPC1768和GPS的定位系统开发
摘要：近些年来，由于全球定位系统GPS能够提供位置、速度、时间等信息，其应用越来越广泛，已经涉及到国民经济的各个领域。嵌入式系统具有广阔的科技前沿和应用前景，已成为继个人电脑和互联网以后最为重要的发明之一。将GPS和嵌入式技术融合实现嵌入式定位系统，有着极大的应用前景。针对该应用的前景，本文提出一种基于LPC1768和GPS的定位系统的软硬件实现方法。使用GPS模块获取到定位信息，选用GTM900C模块的GPRS无线传输功能传输信息，以LPC1768作为核心控制器来控制各个模块有序工作；使用上位机构建TCP服务器与下位机GPRS建立连接，并接收其发上来的GPS定位数据，使用Google Maps将数据显示在其上。本文实现了下位机的软硬件设计、上位机监控软件设计，完成了课题设计需求。
关键词：定位系统；GPS；GPRS；LPC1768；电子地图 The Design of Positioning System Based on LPC1768 and GPS Abstract：During the past few years, because the Global Positioning System (GPS) can provide Position, Velocity and Time information, it has been used widely, relating to all areas of the national economy. Embedded system has broad foreland of science and prospects of application. It becomes one of the most important inventions after personal computers and Internet. Embedded positioning system has great application prospects, which is the integration of GPS and embedded technology. According to the application prospects, this paper expatiates on the software and hardware design methods of positioning system based on LPC1768 and GPS. It uses GPS module to obtain location information, chooses GPRS wireless transmission function of GTM900C module to transmit information, adopts the LPC1768 as the controller to control the various modules orderly work. It uses TCP server establish connection between PC monitoring software and lower machine, and receives GPS positioning data, uses Google maps for display data. This paper achieved the software and hardware design of lower machine, design PC monitoring software, completed the task of design requirements.
Key words: Positioning System, GPS, GPRS, LPC1768, Electronic map