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1、成都理工大学 硕士学位论文 无线遥测48道高分辨率浅层数字地震仪的研制 姓名：李怀良 申请学位级别：硕士 专业：通信与信息系统 指导教师：庹先国;任家富 20100601 摘 要 I 无线遥测 48 道高分辨率浅层数字地震仪的研制 无线遥测 48 道高分辨率浅层数字地震仪的研制 作者简介：李怀良，男，1985 年 12 月生，2007 年师从成都理工大学庹先国 教授、任家富教授，于 2010 年 6 月获硕士学位。 摘摘 要要 作为地震勘探的主要设备，地震仪是地震资料野外采集的核心，是能否获取 高信噪比、高分辨率、高保真度的原始地震资料的关键。目前有线的遥测地震仪 已经成为主流设备被广泛应用，
2、 并且在各种勘探领域和工程地质评价领域取得了 非常好的效果，然而随着地震勘探技术水平的不断提高，地震勘探环境的越来越 恶劣，勘探的整体工程量及领域也不断扩大，使得目前主流的有线遥测地震仪在 某种程度很难满足这种需求， 当然这些弊端以及充分考虑复杂地形条件的施工和 进一步提高施工效率， 也促使无线遥测式工程地震仪成为该技术领域的一种发展 趋势。综合考虑国内外在该领域的研究现状，还没有比较成熟的相关产品，所以 无线遥测式的浅层地震仪在国内外的地球物理勘探领域具有广泛的应用前景和 市场价值。 本文结合传统遥测地震仪的各种优势， 采用分布式遥测的设计思想来实现整 个数据采集系统，兼顾分支采集站和控制主
3、机相互独立设计的研究路线。设计主 要以射频技术组建无线数据传输网络为核心，设计集成可编程放大器、可调截止 频率高切、低切滤波器及陷波器、信号选择分配单元、多种采样率可选的 24 位 分辨率 ADC 的多道可动态配置信号采集处理模块，并充分利用 ARM 体系硬件 资源的各种通用系统外设加载硬实时操作系统 Windows CE 构建便携式系统主 机，同时为满足主机功能的高度兼容性，设计 USB 转无线转接卡以兼容各类系 统的 PC 机。并开发两套实时、高效的集控制、采集、传输、处理、实时显示为 一体的兼容桌面 Windows 和 Windows CE 系统的控制软件。最终实现一台无线 遥测式、便携
4、、低功耗、同步精度高的高频分辨率地震数据采集系统。 论文主要取得了以下几个创新点：设计完成了单板集成四道的干扰小、同步 精度高、可远程动态配置的前置信号处理模块；利用 nRF24L01 组成了一个抗干 扰能力强、实时高效、传输数据量大的无线数据传输网络；针对 ARM9 处理器 集成多种通用外设的优势设计了高性能的地震仪主机及相关操作软件； 整个地震 数据采集系统的低功耗、 便携式设计思想进一步提高了地震勘探的整体效率是论 文又一大创新点。 成都理工大学硕士学位论文 II 关键词：地震勘探 无线遥测 便携式 动态配置 Windows CE Abstract III Development of
5、Wireless Telemetric 48-channel High Resolution Shallow Digital Seismograph Introduction of the author: Li huai-liang was born in December, 1985. Under the guidance of Prof. Tuo xian-guo and Prof. Ren jia-fu, he majored in Communication and Information System and was granted the Master Degree from Ch
6、engdu University of Technology in June, 2010. Abstract As the main equipment for seismic exploration, seismic instrument is the core of seismic data acquisition and the key point to obtain the seismic data with high SNR, high-resolution, high-fidelity in the field. Currently wired telemetric seismog
7、raph has been widely used as mainstream equipment, and has achieved very good results in various engineering geological evaluation and exploration areas, however, along with the continuous improvement of seismic exploration technology, and more and more poor seismic exploration environment, the over
8、all project volume and the area also expanded, making the current mainstream cable telemetric seismograph is difficult to meet this demand to a certain extent, considering these disadvantages and giving full consideration to the construction of complex terrain conditions, and further improving the c
9、onstruction efficiency, it makes wireless telemetric engineering seismograph to be a trend in the technical field. Based on an overall consideration of the research status in this field at home and broad, mature products has not yet emerged, so the wireless telemetric shallow seismograph has broad a
10、pplication prospects and market value in geophysical explorations aspect at home and abroad. This paper combines traditional telemetric seismographs various advantages, it adopts the thinking of distributed telemetry to imply the data acquisition system, meanwhile, caters the independent research ro
11、ute for acquisition station and host. The paper uses radio frequency technology to establish wireless communication network as the core, designs a multi-channel signal acquisition and processing module which can be dynamically configured and integrated programmable amplifier, high-cut and low-cut fi
12、lter whose cut-off frequency is adjustable and notch filter, signal selection distribution unit, optional sampling rate and high-resolution 24-bit ADC. At the same 成都理工大学硕士学位论文 IV time, it takes full advantage of ARM system hardware resources with various peripheral that loading Hard Real-Time opera
13、ting system for Windows CE constitutes system host, to meet simultaneously the hosts high compatibility, it designs a USB to wireless adapter to adjust various systems with PC, while develops two real-time, high efficient control software based on desktop Windows and Windows CE OS that Integrates co
14、ntrol, collection, transmission, processing, real-time display . It accomplishes eventually a High-resolution seismic data acquisition system with wireless telemetry type, portable, low power consumption, and high synchronization precision. There are several innovations as follows: a pre-signal proc
15、essing module that can be remotely configured dynamically and integrating four channels in a single board with low interference and high synchronization precision; It forms a wireless data transmission networks with strong anti-interference, real-time efficiency, transmission large number of data us
16、ing nRF24L01; It designs a high-performance seismograph host and related operating software for the advantages of integrating various common peripherals of ARM9 processors; The low-power, portable design to improve further overall efficiency of seismic exploration is another great innovation for the seismic data acquisition system in this thesis. Keywords: Seismic exploration Wireless telemetric Portable Dynamic configu
