多通道微震信号采集系统设计
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摘要
针对现有矿山微震信号采集系统存在价格昂贵且通用性不强等问题,设计了一种多通道微震信号采集系统。该系统采用地震计拾取微震信号,利用采集电路实现对微震信号的放大、数模转换及数字滤波,利用STM32将滤波后的信号通过USART实时发送给上位机进行分析处理。测试结果表明,该系统可以准确采集、记录地震计拾取的3个通道的微震信号,稳定性好、可靠性高、成本低。
In view of problems of high cost and low universality existed in current acquisition systems of mine microseismic signal,an acquisition system of multi-channel microseismic signal was designed.The system adopts seismometer to collect microseismic signals,uses acquisition circuit to implement amplification for microseismic signals,analog-to-digital conversion and digital filter,and uses STM32 to real-timely send filtered signals to PC for analysis by USART.The test results show that the system can accurately collect and record 3-channel microseismic signals collected by seismometer with good stability,high reliability and low cost.
In view of problems of high cost and low universality existed in current acquisition systems of mine microseismic signal,an acquisition system of multi-channel microseismic signal was designed.The system adopts seismometer to collect microseismic signals,uses acquisition circuit to implement amplification for microseismic signals,analog-to-digital conversion and digital filter,and uses STM32 to real-timely send filtered signals to PC for analysis by USART.The test results show that the system can accurately collect and record 3-channel microseismic signals collected by seismometer with good stability,high reliability and low cost.
引文
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[13]毛小波,庹先国,李梁,等.一种新型微破裂信号并行采集电路的设计与实现[J].科学技术与工程,2014,14(26):244-248.MAO Xiaobo,TUO Xianguo,LI Liang,et al.The design and implementation of a new type of micro burst signal acquisition circuit in parallel[J].Science Technology&Engineering,2014,14(26):244-248.
[14]董健,马国庆,李守才.基于ARM7与CS5376的三分量采集系统设计[J].测控技术,2016,35(1):53-55.DONG Jian,MA Guoqing,LI Shoucai.Design of three-component acquisition system based on ARM7and CS5376[J].Measurement&Control Technology,2016,35(1):53-55.
[15]韦康,邓焱,汪海山.地震勘探数字滤波芯片CS5376与FPGA的接口设计[J].清华大学学报(自然科学版),2009,49(5):692-695.WEI Kang,DENG Yan,WANG Haishan.Design interface between a seismic exploration digital filter chip CS5376and an FPGA[J].Journal of Tsinghua University(Science and Technology),2009,49(5):692-695.
[2]彭红星,郭威.基于STM32的矿井微震数据采集监测分站[J].仪表技术与传感器,2013(10):67-69.PENG Hongxing,GUO Wei.Design of mine microseism data acquisition monitoring sub-station based on STM32[J].Instrument Technique&Sensor,2013(10):67-69.
[3]张法全,李宗敏,王国富.高动态范围微震信号采集系统设计[J].工矿自动化,2015,41(10):12-15.ZHANG Faquan,LI Zongmin,WANG Guofu.Design of microseism signal collection system with high dynamic range[J].Industry and Mine Automation,2015,41(10):12-15.
[4]朱超.微震实时在线监测系统的研究与实现[D].武汉:武汉科技大学,2012:1-6.
[5]李魁.微震监测系统数据采集仪的研究[D].淮南:安徽理工大学,2016:2-5.
[6]李怀良.复杂山地多波宽频带地震数据采集关键技术研究[D].成都:成都理工大学,2013:1-6.
[7]ZHANG B H,DENG J H.Microseismic monitoring analysis methods for disaster prevention in underground engineering[J].Disaster Advances,2012,5(4):1420-1424.
[8]姜福兴,XUN Luo.微震监测技术在矿井岩层破裂监测中的应用[J].岩土工程学报,2002,24(2):147-149.JIANG Fuxing,XUN Luo.Application of microseismic monitoring technology of strata fracturing in underground coal mine[J].Chinese Jounal of Geotechnical Engineering,2002,24(2):147-149.
[9]许红杰,夏永学,蓝航,等.微震活动规律及其在煤矿开采中的应用[J].煤矿开采,2012,17(2):93-95.XU Hongjie,XIA Yongxue,LAN Hang,et al.Application of micro-seismic activity rule in coal mining[J].Coal Mining Technology,2012,17(2):93-95.
[10]余芳芳,郭来功,李良光.基于STM32F407的微震信息采集系统设计[J].工矿自动化,2014,40(7):9-12.YU Fangfang,GUO Laigong,LI Liangguang.Design of microseism information collection system based on STM32F407[J].Industry and Mine Automation,2014,40(7):9-12.
[11]李兴伟.基于FPGA的微震监测采集站的研究与设计[D].北京:北京建筑大学,2014:11-13.
[12]郭来功,欧阳名三.一种高精度微震信息采集系统[J].仪表技术与传感器,2013(11):65-69.GUO Laigong,OUYANG Mingsan.Microseismic acquisition system of high precision[J].Instrument Technique&Sensor,2013(11):65-69.
[13]毛小波,庹先国,李梁,等.一种新型微破裂信号并行采集电路的设计与实现[J].科学技术与工程,2014,14(26):244-248.MAO Xiaobo,TUO Xianguo,LI Liang,et al.The design and implementation of a new type of micro burst signal acquisition circuit in parallel[J].Science Technology&Engineering,2014,14(26):244-248.
[14]董健,马国庆,李守才.基于ARM7与CS5376的三分量采集系统设计[J].测控技术,2016,35(1):53-55.DONG Jian,MA Guoqing,LI Shoucai.Design of three-component acquisition system based on ARM7and CS5376[J].Measurement&Control Technology,2016,35(1):53-55.
[15]韦康,邓焱,汪海山.地震勘探数字滤波芯片CS5376与FPGA的接口设计[J].清华大学学报(自然科学版),2009,49(5):692-695.WEI Kang,DENG Yan,WANG Haishan.Design interface between a seismic exploration digital filter chip CS5376and an FPGA[J].Journal of Tsinghua University(Science and Technology),2009,49(5):692-695.