| 基于AVR和振弦式渗压计的大坝监测系统设计 |
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| 引用本文： | 黄凤辰,赵莉,燕志勇. 基于AVR和振弦式渗压计的大坝监测系统设计[J]. 电子设计工程, 2011, 19(5): 22-25 |
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| 作者姓名： | 黄凤辰 赵莉 燕志勇 |
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| 作者单位： | 河海大学计算机与信息学院,江苏,南京,210098 |
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| 摘 要： | 设计了一种基于AVR和振弦式渗压计的大坝监测系统,简要介绍了振弦式渗压计的原理、数学模型以及ATmega128单片机的特性,运用单片机的输入捕捉和ADC功能并结合软件设计对系统的激振和测频方法进行了改进,同时提出了一种简单易行的防雷击电路。本测频系统具有硬件电路简单、信号灵敏度高等特点,提高了测量计算准确度,对大坝安全性监测提供了帮助。
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| 关 键 词： | 振弦式渗压计 ATmega128 防雷击电路 输入捕捉 ADC |
Design of dam monitoring system based on AVR microcontroller and vibrating string osmotic pressure gauge |
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| HUANG Feng-chen,ZHAO Li,YAN Zhi-yong. Design of dam monitoring system based on AVR microcontroller and vibrating string osmotic pressure gauge[J]. Electronic Design Engineering, 2011, 19(5): 22-25 |
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| Authors: | HUANG Feng-chen ZHAO Li YAN Zhi-yong |
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| Affiliation: | (College of Computer & Information,Hohai University,Nanjing 210098,China) |
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| Abstract: | A dam monitoring system is designed based on the character of AVR microcontroller and the vibrating string osmotic pressure gauge.The principle of vibrating string osmotic pressure gauge,mathematic model and characteristic of ATmega128 were introduced in detail.Taking full use of the functions of capture and ADC and combing with software,a new method is arised.Also a simple lightning circuit is designed.The system has the advantages of simple circuit,high signal sensitivity,it can effectively improve measuring accuracy.It is generally recognized that great help is supplied on the dam safety monitoring. |
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| Keywords: | rating string osmotic pressure gauge ATmega128 lightning circuit input capture ADC |
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