基于ADXL330的便携地震速报仪设计
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摘要
为及时、准确地测量地震并给予报警,以AT89S52单片机为采样及数据处理核心,设计和实现了便携的地震烈度速报仪.新型三轴加速度传感器ADXL330敏感三维加速度分量,经调理后输出电压信号.应用16位精度的A/D转化器AD7708进行采样,数据串行输入在单片机的SRAM中.控制核心对数据进行低通滤波、中位值查询、插值等处理后,得到地震烈度信息,输出至12864A进行液晶显示并给出语音提醒.经实际应用证明,该地震烈度速报仪播报准确,可实现视听化,具有很好的经济实用性.
To detect the earthquake rapidly and accurately and give alarm accordingly,a portable seismic intensity rapid reporter is designed and implemented based on the AT89S52 MCU as the collecting and data process core.A new-type 3-axis accelerometer ADXL330 detected the accelerators and outputted voltage signals after inner transaction which is sampled by the 16-bit resolution A/D converter AD7708 with data transferred to the SRAM in MCU.The MCU processed the data by software low-pass filter,median value search and interpolation,and delivers the seismic intensity result to LCD displayer 12864A and voice alarm chip PM50.Approved by application,the apparatus has the advantages of accurate detection,audio-visual realism and fine economic practicality.
To detect the earthquake rapidly and accurately and give alarm accordingly,a portable seismic intensity rapid reporter is designed and implemented based on the AT89S52 MCU as the collecting and data process core.A new-type 3-axis accelerometer ADXL330 detected the accelerators and outputted voltage signals after inner transaction which is sampled by the 16-bit resolution A/D converter AD7708 with data transferred to the SRAM in MCU.The MCU processed the data by software low-pass filter,median value search and interpolation,and delivers the seismic intensity result to LCD displayer 12864A and voice alarm chip PM50.Approved by application,the apparatus has the advantages of accurate detection,audio-visual realism and fine economic practicality.
引文
[1]马秋芳.基于MEMS地震仪的天然地震信号采集系统的开发[D].北京:中国石油大学,2007:1-3.
[2]离山有,金星.地震动强度与地震烈度速报研究[J].地震工程与工程振动,2002,22(6):2-3.
[3]非明伦.中国地震烈度表(1980)[J].水电站设计,2001(2):87-88.
[4]郝立果,胡山.基于加速度传感器ADXL330的运动信息采集平台设计[J].天津工程师范学院学报,2008,18(1):31-33.
[5]孟维国.三轴加速度计ADXL330的特点及其应用[J].国外电子元器件,2007(2):47-48.
[6]朱晓明,施文康.基于AD7708的卫星镍氢电池测试系统[J].计算机测量与控制,2004,12(11):1046-1047.
[7]陈玉明.PM50系列芯片实现的语音提示电路[J].检测与制作,2007(2):18-19.
[2]离山有,金星.地震动强度与地震烈度速报研究[J].地震工程与工程振动,2002,22(6):2-3.
[3]非明伦.中国地震烈度表(1980)[J].水电站设计,2001(2):87-88.
[4]郝立果,胡山.基于加速度传感器ADXL330的运动信息采集平台设计[J].天津工程师范学院学报,2008,18(1):31-33.
[5]孟维国.三轴加速度计ADXL330的特点及其应用[J].国外电子元器件,2007(2):47-48.
[6]朱晓明,施文康.基于AD7708的卫星镍氢电池测试系统[J].计算机测量与控制,2004,12(11):1046-1047.
[7]陈玉明.PM50系列芯片实现的语音提示电路[J].检测与制作,2007(2):18-19.
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