基于单片机的空调遥控器设计 1.doc

基于单片机的空调遥控器设计_1本科毕业设计
基于单片机的农田边界GPS坐标检测与显示系统设计
摘要
GPS(Global Positioning System)即全球定位系统,是一种利用卫星支持的无线电导航系统。目前,GPS技术广泛应用于工业、医疗、军事和生活等许多领域,在农业,特别是精细农业领域,GPS技术也越来越多地被运用。在精细农业研究中,农田边界坐标和农田面积是农田信息中必不可少的数据,农田面积的大小决定了农业生产时种子、肥料的用量,也是机械作业方面需要了解的数据。因此采用GPS采集农田边界坐标信息,对实现农业劳作精细化等有非常重要的现实意义。
目前,有些设计能够实现农田边界GPS坐标监测及面积计算,但设备价格较高是其最大的缺点。在实际农田边界坐标监测中,要求系统具有稳定性和便携性,因此设计一种便携式的农田GPS坐标监测与显示系统很有意义。本文提出一种基于GPS技术的农田边界信息采集与面积计算的解决方案,该方案基于单片机和GPS开发板来设计GPS信息采集系统。该系统采用增强型单片机STC12LE5A60S2和u-blox的GPS 开发板来采集农田坐标信息,通过TFT屏进行显示,并通过PC机进行面积计算。
以往对土地坐标和面积的测量常采用人工操作的方法完成,该法具有耗时费工、工作效率低下的明显缺陷。该系统利用GPS技术设计了便携式的农田边界坐标监测设备,通过单片机对GPS报文信息进行处理,可实时获取和显示农田边界坐标信息,并对农田面积进行计算,该系统具有系统构成简单,维护方便,运行费用低等优点,能够实现可靠的数据采集和处理,可以应用于农田边界坐标信息的监测。
关键词:单片机 STC12LE5A60S2 GPS
GPS coordinate detection and display system of Field boundary
based on MCU
Xie Zhenhe
(College of Engineering, South China Agricultural University, Guangzhou , China)
Abstract: Global Positioning System (GPS), is a use of radio navigation System supported by satellite. At present, GPS technology is widely used in industrial, medical, military and life and many other fields, in agriculture, especially in precision farming areas, the GPS technology is also increasingly being used. In the study of precision agriculture, farmland boundary coordinates, and area of farmland is an essential data in farmland information, determines the amount of seed, fertilizer and agricultural production, is also the mechanical operations need to understand the data. Therefore, using GPS to collecte coordinate information of farmland boundaries, has a very important practical significance to realize the agricultural work fine.
At present, some design can realize farmland border monitoring GPS coordinates, and area calculation, but the high price of the equipment is its biggest drawback. In actual field boundary coordinates monitoring system has stability and portability, so design of a portable GPS coordinates farmland monitoring and display system is very meaningful. This paper propo