基于MEMS与LwIP的煤矿三分量地震数据采集系统  

Three-component seismic data acquisition system of coal mine based on MEMS and LwIP

作　　者：王怀秀 仇帅 朱国维[2,3] 陈波 WANG Huaixiu;QIU Shuai;ZHU Guowei;CHEN Bo(School of Electrical and Information Engineering,Beijing University of Architecture,Beijing 102616,China;College of Geosciences and Surveying Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;State Key Laboratory of Coal Resources and Mining,Beijing 100083,China)

机构地区：[1]北京建筑大学电气与信息工程学院,北京102616 [2]中国矿业大学(北京)地球科学与测绘工程学院,北京100083 [3]煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤田地质与勘探》2021年第4期8-14,共7页Coal Geology & Exploration

基　　金：国家重点研发计划项目(2018YFC0807800)。

摘　　要：针对当前煤矿地震数据采集传输系统中数据传输实时性差,数据传输量有限的问题,以及数据采集需要满足多波宽频的要求,设计了基于MEMS与LwIP的煤矿三分量全波地震数据采集系统。该系统由MEMS三分量检波器、数据采集单元、高性能防爆路由器、高性能嵌入式主机及采集控制软件、主机监控软件构成。采用MEMS加速度芯片VS1002作为检波器芯体,利用其高灵敏度、宽频带响应等特点;主机监控软件完成对全波采集单元监控、管理及简单的数据处理功能;全波数据采集单元实现了三分量地震信号的数据拾取、转换、存储和数据输出;系统采用分布式控制方式,可实现系统的灵活组合与拆分,提高了采集信号的质量,增强了在煤矿中的适用范围。实验结果表明:与常规地震采集系统相比,本系统具有抗干扰力强,响应频带宽的特点,可在恶劣环境条件下捕捉到频带较宽的地震信号。Aiming at the problems of poor real-time data transmission and limited data transmission in current coal mine seismic data acquisition and transmission system and the requirement of multi wave and broadband data acquisition,a three-component full wave seismic data acquisition system based on MEMS and LwIP is designed.The system consists of MEMS three-component detector,data acquisition unit,high-performance explosion-proof router,high-performance embedded host,acquisition control software and host monitoring software.The MEMS acceleration chip VS1002 is used as the core of the detector,which has the characteristics of high sensitivity and wide-band response.The host monitoring software completes the monitoring,management and simple data processing functions of the full wave acquisition unit.Full wave data acquisition unit realizes data acquisition,conversion,storage and data output of three component seismic signal.The system adapts the distributed control mode,improves the anti-interference ability of the whole system and the quality of the collected signal to realizes the flexible combination and split of the system,and then enhances the application scope in coal mines.The field contrast experiment is carried out in the open-pit coal mine.The experimental results show that compared with the conventional seismic acquisition system,the system has the characteristics of strong anti-interference and response frequency bandwidth,and is capable of capturing the seismic signal with wide frequency band in the harsh environment.

关 键 词：煤矿地震勘探 地震数据 LwIP网络 MEMS三分量检波器 分布式控制 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]