| 基于PNI传感器的电子指南针 |
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| 引用本文： | 马学东,吴傍斌,林培立,谢镇和,王卫星.基于PNI传感器的电子指南针[J].电子设计工程,2011,19(12):181-183. |
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| 作者姓名： | 马学东 吴傍斌 林培立 谢镇和 王卫星 |
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| 作者单位： | 华南农业大学工程学院,广东广州,510642 |
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| 基金项目： | 华南农业大学电子信息工程校级特色专业培育资助项目 |
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| 摘 要： | 鉴于采用磁阻传感器的数字指南针体现了高精度、高灵敏度的特点,提出基于PNI传感器的电子指南针系统。该系统以Atmega16作为主控芯片,由SEN-R65磁阻传感器、PNI11096磁场测量芯片组成数据采集端,由1602液晶、蜂鸣器、二极管及按键组成人机交互平台,实现了显示当前方向角、多级菜单操作、指南蜂鸣、磁场校准、定向导航、休眠节能等多项功能。实验证明,该电子指南针的方向角绝对误差降低至1.73%。
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| 关 键 词： | 指南针 PNI传感器 Atmega16单片机 SEN-R65磁阻传感器 |
Electronic compass based on the PNI sensor |
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| MA Xue-dong,WU Bang-bin,LIN Pei-li,XIE Zhen-he,WANG Wei-xing.Electronic compass based on the PNI sensor[J].Electronic Design Engineering,2011,19(12):181-183. |
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| Authors: | MA Xue-dong WU Bang-bin LIN Pei-li XIE Zhen-he WANG Wei-xing |
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| Institution: | (College of Engineering,South China Agricultural University,Guangzhou 510642,China) |
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| Abstract: | The electronic compass based on magnetic resistance sensor,reflects the characteristics of high precision and high sensitivity.In view of this,an electronic compass system based on the PNI sensor was proposed.It used an Atmega16 as the master chip.The data acquisition terminal was composed of SEN-R65 magnetic resistance sensor and a PNI11096 magnetic chip.The man-machine exchange platform was made up of a 1602 liquid crystal,a buzzer,diodes and buttons.The electronic compass realized multiple functions including displaying the current direction angle,multi-level menu operation,a guiding buzz,magnetic field calibration,directional navigation,dormancy energy-saving etc.Experiments show that the absolute error of the direction angle of the electronic compass is reduced to 1.73%. |
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| Keywords: | compass PNI sensor Atmega16 microcontroller SEN-R65 magnetic resistance sensor |
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