基于 AT89S52 的 GPS 定位系统设计与讨论摘要本设计结合单片机技术和 GPS 定位技术，简略的介绍了 GPS 基本概念，GPS 系统的组成，讨论了绝对定位原理及其应用，最后提出了基于 AT89S52 单片机的 GPS 独立定位设备的概念，逐步讲解了软硬件的设计思路和步骤。设计提出以 S3310B 作为 GPS 接受芯片，AT89S52 单片机处理数据，LCD1602 液晶显示以及独立电源模块实现的一种入门级的 GPS 定位系统的硬件电路实现方案。本设计能够让学过单片机的人都了解 GPS，而且有能力自己动手去做一个 GPS定位系统。关键词：单片机；串口通信；GPS；液晶The Global Position System Design Based on AT89S52Fan Yan(College of Physics Science and Information Engineering,Jishou University,Jishou,Hunan 416000)AbstractThis text combines microcontroller technology and GPS technology and introduced GPS basic concept, also discusses constituting of GPS system. Absolute it fixed position principle and put forward a concept which is AT89S52 as the core of the most simplest independent GPS device. The most important is that I have explained in detail design way of thinking and step of soft hardware. At the same time, this text raised a design project of GPS system, which used S3310B as receiving chip of GPS, MCU processing data , LCD shows data and Independent power. In the end, this design can let people who learned GPS for the first time, to understand GPS and to do a GPS by himself.Keyword: MCU; the serial communication; GPS; LCD目录第一章 绪论.................................................................................................................11.1 GPS 背景...................................................................................................................11.2 GPS 定位的坐标系统与时间系统的概述...............................................................11.2.1 坐标系统..................................................................................
