电子指南针设计

【摘要】：指南针是一个重要的导航工具，甚至在GPS中也会用到（盲区补偿）。本款用磁通传感器做的电子指南针体积小，成本低，精度达到±2度，功耗小（纽扣电池供电），非常适合替代旧的针式指南针或罗盘指南针。它使用直观，携带轻巧，操作方便。是旅游，登山，驾驶及其他户外运动不可缺少的必备新品。

本系统采用了磁阻（GMR）传感器采集某一方向磁场强度后通过高速微控制器（MCU）对其进行处理并显示上传，通过对电子指南针硬件电路和软件程序的分析，阐述了电子指南针基本的工作原理及实现。实际测试指南针模块精度达到1°，能够在LCD上显示当前方位并能通过键盘控制上传指南针处理得到的数据到上位机。 [版权所有：http://think58.com]

【关键词】：电子指南针；GMR；MCU；LCD

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  [版权所有：http://think58.com]

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[资料来源：http://think58.com]

【Abstract】:Compass is an important navigation tool.It also can be used in the GPS.This design of electronic compass contain a Magnetic sensor.It has a small size, low cost, accuracy of ± 2 degrees and a small power consumption. So it is an alternative to the old compass. It uses Intuitively,and it is portable and easy to operate. It is a new product necessary for the tourism, mountain climbing, driving and other outdoor sports. [资料来源：http://think58.com]

The system is designed by the reluctance (GMR) sensors collecting a certain direction through the magnetic field strength after the MCU Controller its judgement will be dealt with the results, through the LCD screen display and can be sent to the MCU's top serial Machine. The actual test compass module can reach 1 °, in the LCD display on the current position of the keyboard and through selective compass upload the data processing. [资料来源：http://THINK58.com]

【Keywords】: electronic compass; GMR; MCU; LCD [资料来源：www.THINK58.com]

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Tags:电子 指南 指南针 设计  [资料来源：http://think58.com]

[资料来源：http://think58.com]