CN104793239A - Comprehensive seismological system based on MEMS acceleration sensor - Google Patents

Comprehensive seismological system based on MEMS acceleration sensor Download PDF

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CN104793239A
CN104793239A CN201510246289.XA CN201510246289A CN104793239A CN 104793239 A CN104793239 A CN 104793239A CN 201510246289 A CN201510246289 A CN 201510246289A CN 104793239 A CN104793239 A CN 104793239A
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seismic
monitoring
signal
broadband
system
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CN201510246289.XA
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吴长松
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威亚讯通(北京)科技有限公司
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Abstract

The invention discloses a comprehensive seismological system based on an MEMS acceleration sensor. The comprehensive seismological system comprises a triaxial MEMS acceleration sensor group, a frequency selection allocation group, an analog-digital conversion group and a processing module. By adopting the comprehensive seismological system, an original ultra broadband seismometer, a broadband seismometer, a short-period seismometer, a strong-motion seismograph, a seismic intensity meter and a data collector are reasonably integrated, so that the size is greatly reduced, various functions such as an intelligent monitoring function and a remote measuring function which are not provided by the traditional seismometer are provided, and the comprehensive seismological system represents the development trend of the digital seismic monitoring, takes a new strategy highland of the seismic monitoring field and solves the problems of the original seismic meter such as daily maintenance and remote measuring.

Description

基于MEMS加速度传感器的综合测震系统 Seismic system based on an integrated MEMS acceleration sensor

技术领域 FIELD

[0001] 本发明涉及微震动测量技术领域,具体是一种基于MEMS加速度传感器的综合测震系统。 [0001] The present invention relates to a micro vibration measurement technology, in particular a MEMS based accelerometer integrated seismic system.

背景技术 Background technique

[0002]目前在国内地震监测和预报仪器的传感器基本上是仍然沿用传统的、老式的动圈式机电感应传感器,使得现有的地震仪器有如下不便: [0002] In the current sensor domestic earthquake monitoring and forecasting instruments are basically still follow the traditional, old-fashioned electromechanical moving coil inductive sensors, so that the existing seismic instruments have the following inconveniences:

[0003] 1、重量大(一般由十几公斤到几十公斤),体积大,不方便运输和存储; [0003] 1, by weight of large (usually more than ten kilograms to several tens of kilograms), bulky, inconvenient to transport and storage;

[0004] 2、频带窄,宽频带地震计频率范围为几十秒到几十赫兹; [0004] 2, narrow band, broadband seismometer frequency range of several tens Hz to several tens of seconds;

[0005] 3、功耗大;一般达几十瓦以上; [0005] 3, a large power consumption; typically more than several tens of watts;

[0006] 4、拾震部件机械加工精度要求高,制作成本大; [0006] 4, seismometer member machining high precision, large production costs;

[0007] 5、仪器安放要求高,需要人工精心调节水平姿态,难以适应遥测和智能化的要求; [0007] 5, the high requirements placed instruments, need to manually adjust the level of careful attitude, intelligence and difficult to adapt to the requirements of telemetry;

[0008] 6、关键的拾震器机械构件容易损坏,怕冲击,怕碰撞,搬运和保养不易。 [0008] 6, the key member seismometer easily damaged mechanically, fear of shock, fear of collision, easy handling and maintenance.

发明内容 SUMMARY

[0009] 本发明的目的是克服现有技术的不足,提供一种基于MEMS加速度传感器的综合测震系统。 [0009] The object of the present invention is to overcome the disadvantages of the prior art, having an integrated seismic sensor based on MEMS accelerometer system.

[0010] 本发明通过下述技术方案予以实现: [0010] The present invention is realized by the following technical scheme:

[0011] 一种基于MEMS加速度传感器的综合测震系统,包括: [0011] Seismic an integrated system based MEMS accelerometer, comprising:

[0012] 三轴向MEMS加速度传感器组,用于接收X、Y、Z三个方向的地震波信号; [0012] MEMS tri-axial acceleration sensor group for receiving the X, Y, Z three directions of the seismic signal;

[0013] 频率选择分配组,所述频率选择分配组与所述3轴向MEMS加速度传感器组电连接,用于将接收来的地震波信号分解成所需信号; [0013] The frequency selective allocation set, the frequency selective allocation set with the axial MEMS acceleration sensor groups 3 are electrically connected, for receiving the seismic wave to the desired signal into a signal;

[0014] 模数转换组,所述模数转换组与所述频率选择分配组电连接,用于将分解后的所需信号进行模数转换得到数字信号; [0014] Group D conversion, digital conversion of the group and is electrically connected to the frequency selective allocation set for a desired signal decomposed analog to digital conversion to obtain a digital signal;

[0015] 处理模组,处理模组与所述模数转换组电连接,用于根据转换后得到的数字信号进行地震信息综合处理并将结果输出到地震台网信息中心。 [0015] Processing module, the processing module and the analog to digital converter electrically connected group, for outputting the results of seismic information integration processing seismic network to the information center in accordance with the digital signal obtained after the conversion.

[0016] 优选的,所述频率选择分配组包括: [0016] Preferably, the frequency selective allocation set comprising:

[0017] 甚宽频带监测单元,用于将接收来的地震波信号分解成甚宽频带监测所需信号; [0017] VBB monitoring unit, for receiving the seismic wave to the wide-band signal into even required to monitor the signal;

[0018] 宽频带监测单元,用于将接收来的地震波信号分解成宽频带地震计所需监测信号; [0018] The wide-band monitoring unit for receiving the seismic wave to the broadband seismometer signal into a desired monitoring signal;

[0019] 短周期监测单元,用于将接收来的地震波信号分解成短周期地震计所需监测信号。 [0019] The short-period monitoring means for receiving the seismic wave to the signal into short-period seismometer desired monitoring signal.

[0020] 优选的,所述处理模组包括: [0020] Preferably, the processing module comprising:

[0021] 甚宽频带处理单元,用于将甚宽频带监测所需信号进行处理得到甚宽频带地震检测结果; [0021] Very Broadband processing means for very broadband signals are processed to obtain the desired monitor very broadband seismic detection result;

[0022] 宽频带处理单元,用于将宽频带地震计所需监测信号进行处理得到宽频带地震检测结果; [0022] broadband processing unit for monitoring the broadband seismometer desired broadband seismic signals are processed to obtain a detection result;

[0023] 短周期处理单元,用于将短周期地震计所需监测信号进行处理得到短周期地震检测结果。 [0023] The short-period processing unit, for the short period seismometer desired monitoring signal obtained by processing the detection result of the short period of the earthquake.

[0024] 优选的,所述模数转换组包括: [0024] Preferably, the analog to digital converter includes:

[0025] 至少一路A/D转换模块,用于对所需信号进行模数转换; [0025] way of at least A / D converter module, the desired signal for analog to digital conversion;

[0026] 地震波采集分析应用单元,用于实现不同的地震监测方式及其选择,进而不同的地震监测功能。 [0026] Application of seismic acquisition and analysis unit, for implementing different mode and selected seismic monitoring, seismic monitoring further different functions.

[0027] 优选的,所述处理模组包括网络接口模组,所述处理模组通过所述网络接口模组与地震台网信息中心连接。 [0027] Preferably, the processing module comprises a network interface module, the processing module is connected to the seismic network information center via the network interface module.

[0028] 优选的,所述模数转换组与所述处理模组之间通过系统总线电连接。 [0028] Preferably, the die is electrically connected by a system bus between the group and the number of conversion processing module.

[0029] 本发明提供的基于MEMS加速度传感器的综合测震系统可以将原来的甚宽频地震仪、宽频带地震计、短周期地震计、强震仪、地震烈度计及数据采集有机结合统一起来,体积缩小很多,同时具备智能化监测和远程遥测等原来地震计不具备的多种功能,其意义包括: [0029] The present invention provides an integrated seismic system (MEMS) acceleration sensor may be based on the original very broadband seismometer, broadband seismometer, short-period seismometer, accelerograph, seismic data acquisition and the intensity meter combine unity, many smaller in size, along with a variety of functions such as intelligent monitoring and remote telemetry seismograph do not have the original, and its significance include:

[0030] 1、代表了数字地震监测的发展方向。 [0030] 1, it represents the development direction of digital seismic monitoring. 我国现有的地震观测系统主要分为强震台网和测震台网两部分,由于两个系统的职能不相同,所以他们所用的仪器也不尽相同,通过本发明可以将两个系统合一。 Our existing seismic observation system consists of strong-motion seismic network and the network in two parts, because the functions of the two systems are not identical, they are not the same instruments used, both systems can be combined by the present invention One.

[0031] 2、抢占了地震监测领域新的战略高地。 [0031] 2, seize the strategic high ground of new seismic monitoring. 地震监测向高技术含量、智能化方向发展已成为共识。 Seismic monitoring to high-tech, intelligent direction has become a consensus. MEMS加速度智能综合测震系统,利用其固有的技术优势,领导地震监测技术的发展趋势。 MEMS acceleration intelligent integrated seismic system, with its inherent technical advantages, the development trend of earthquake monitoring technology leadership.

[0032] 3、解决了原有地震仪的日常维护和远程遥测的问题。 [0032] 3, solves the problem of routine maintenance and remote telemetry original seismograph. 原有地震仪需要每年人工进行仪器校准和调校,使用此系统后可以在监测中心对远端的地震仪器进行远程遥控校准,还可以实时监测各仪器的工作状态正常否的功能。 Original seismograph need to manually annual instrument calibration and adjustment, calibration can be performed after the remote control using this system in the remote monitoring center of seismic instruments, but also real-time monitoring of the status of each instrument No normal function.

附图说明 BRIEF DESCRIPTION

[0033] 此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,并不构成对本发明的不当限定,在附图中: [0033] The drawings described herein are provided for further understanding of the present invention, constitute a part of this application, without unduly limiting the present invention, in the drawings:

[0034] 图1是本发明实施例结构示意图。 [0034] FIG. 1 is a schematic structural embodiment of the present invention.

具体实施方式 Detailed ways

[0035] 下面将结合附图以及具体实施例来详细说明本发明,在此本发明的示意性实施例以及说明用来解释本发明,但并不作为对本发明的限定。 [0035] and the following with reference to specific embodiments of the present invention will be described in detail, in this exemplary embodiment of the present invention serve to explain and illustrate the present invention but are not intended to limit the present invention.

[0036] 实施例: [0036] Example:

[0037] 如图1所示,一种基于MEMS加速度传感器的综合测震系统,包括: [0037] 1, the MEMS based accelerometer integrated seismic system, comprising:

[0038] 三轴向MEMS加速度传感器组1,包括三个MEMS加速度传感器,用于接收X、Y、Z三个方向的地震波信号,三轴向MEMS加速度传感器组I采用MEMS技术,MEMS又称微机电系统。 [0038] MEMS tri-axial acceleration sensor group 1, three seismic signal comprises a MEMS acceleration sensors, for receiving the X, Y, Z directions of the three, three-axis accelerometer MEMS Group I MEMS technology, also known as micro-MEMS Electromechanical systems. MEMS传感器芯片是由微米级的硅芯片立体加工技术制造而成的,微型或小型传感器。 MEMS sensor chip is made of silicon perspective micron processing technology made, micro or small sensor. MEMS技术广泛用于工业、信息、国防、医疗、汽车等行业,最常用的如智能手机、汽车冲击气囊等。 MEMS technology is widely used in industrial, information, defense, medical, automotive and other industries, the most commonly used such as smart phones, automobile impact air bags. MEMS芯片规模化生产后,成本较低,,稳定性高,这对部分受制于地震仪器成本的防震减灾事业无疑是一个巨大的发展契机,如果大规模铺设这种传感器,将能获取更多更丰富的强震记录,为地震研宄提供一些必要的资料,如果应用于烈度速报和地震预警系统中,具有巨大的成本优势; After the MEMS chip-scale production, low cost,, high stability, which is part of the subject to earthquake disaster mitigation costs of seismic instruments is undoubtedly a great opportunity for development, if large-scale laying of such sensors will be able to get more and more a wealth of strong motion records, provide the necessary information for the study based on seismic, if applied to breaking news and intensity earthquake early warning system, it has a significant cost advantage;

[0039] 频率选择分配组2,所述频率选择分配组2与所述3轴向MEMS加速度传感器组电连接,用于将接收来的地震波信号分解成所需信号,例如本实施例中的频率选择分配组2包括: [0039] The frequency selective allocation set 2, the frequency selective allocation set 2 is connected to the axial MEMS acceleration sensor groups 3 electricity, for receiving the seismic wave to the signal into a desired signal, in the present example embodiment the frequency 2 select allocation set comprising:

[0040] 1、甚宽频带监测单元21,用于将接收来的地震波信号分解成甚宽频带监测所需信号(360(120)秒〜50赫(3dB)记录地动速度,VBB3000秒〜360秒(3dB)记录地动加速度,VLP); [0040] 1, even broadband monitoring unit 21, for receiving the seismic wave to the very wide band signal into a desired signal monitor (360 (120) ~ 50 seconds Hz (3dB) recording the earth velocity, VBB3000 ~360 seconds sec (3dB) record ground acceleration, VLP);

[0041] 2、宽频带监测单元22,用于将接收来的地震波信号分解成宽频带地震计所需监测信号(优于0.025〜50Hz (3dB)记录地动速度); [0041] 2, wide-band monitoring unit 22 is configured to be received seismic signal into a broadband seismometer desired monitoring signal (better 0.025~50Hz (3dB) recording the earth velocity);

[0042] 3、短周期监测单元23,用于将接收来的地震波信号分解成短周期地震计所需监测信号(I秒〜40赫(3dB)地动速度平坦)。 [0042] 3, short-period monitoring unit 23 is configured to be received seismic signal into short-period seismometer desired monitoring signal (I s ~ 40 Hz (3dB) earthquake flat rate).

[0043] 模数转换组3,所述模数转换组3与所述频率选择分配组2电连接,用于将分解后的所需信号进行模数转换得到数字信号; [0043] ADC group 3, the analog to digital conversion of the 3 groups selected frequency allocation set 2 is electrically connected to the desired signal for analog to digital conversion decomposed to obtain a digital signal;

[0044] 处理模组4,处理模组与所述模数转换组电连接,用于根据转换后得到的数字信号进行地震信息综合处理并将结果输出到地震台网中心,通过中央处理器及以SDRAM、FLASH为基础的二级数据存储技术实现,相应的,本实施例中的处理模组包括: [0044] 4 processing module, the processing module and the analog to digital converter electrically connected group, for seismic outputs the result to the information integration processing seismic network center in accordance with the digital signal obtained after the conversion, through the CPU, and in SDRAM, FLASH based secondary data storage technology, corresponding, according to the present embodiment the processing module comprises:

[0045] 1、甚宽频带处理单元41,用于将甚宽频带监测所需信号进行处理得到甚宽频带地震检测结果; [0045] 1, even broadband processing unit 41 for very broadband signals are processed to obtain the desired monitor very broadband seismic detection result;

[0046] 2、宽频带处理单元42,用于将宽频带地震计所需监测信号进行处理得到宽频带地震检测结果; [0046] 2, broadband processing unit 42 for monitoring the broadband seismometer desired broadband seismic signals are processed to obtain a detection result;

[0047] 3、短周期处理单元43,用于将短周期地震计所需监测信号进行处理得到短周期地震检测结果。 [0047] 3, short-cycle processing unit 43, for a short period seismometer desired monitoring signal obtained by processing the detection result of the short period of the earthquake.

[0048] 本实施例中,所述处理模组包括提供的以太网接口、RE232接口、WIFI网络接口的网络接口模组45,所述处理模组选择性通过所述网络接口模组与地震台网中心连接。 [0048] In this embodiment, the process comprises providing Ethernet interface module, RE232 interfaces, WIFI network interface, a network interface module 45, the processing module selectively via the network interface module and Seismostation network center connectivity.

[0049] 作为上述实施例方案的改进,所述模数转换组3包括至少一路用于对所需信号进行模数转换的Α/D转换模块31之外,还包括一个地震波采集分析应用单元32,集成于嵌入式操作系统中的地震波采集分析应用单元对各地震波形进行选择,完成信息的抽样、量化、编码/解码、运算处理和变换,用于实现不同的地震监测方式及其选择,进而不同的地震监测功能。 [0049] As an improvement of the solutions of the above-described embodiment, the analog to digital converter outside Α group 3 comprises at least one line for the desired signal, analog to digital conversion of the A / D converter module 31, further comprising a seismic acquisition unit 32 analyzes the application , integrated operating system embedded seismic acquisition analysis for each seismic waveform application unit is selected, the completion of sampling information, quantization, encoding / decoding, arithmetic processing and transformation, for implementing different and selected seismic monitoring mode, and further different seismic monitoring.

[0050] 本发明利用MEMS加速度传感器技术、频率分配、计算机、通信、网络、自动控制等技术,将甚宽频地震计、宽频地震计、短周期地震计、强震仪、地震烈度计等相对分散的,独立的系统纳入到统一的平台中,实现信息集成,形成以信息集成为核心,集数据采集、监测、控制、管理、预警于一体的网络化、信息化和智能化的综合系统。 [0050] The present invention utilizes MEMS accelerometer technology, frequency allocation, computers, communications, network, automatic control technology, the very broadband seismometer broadband seismometer, short-period seismometer, accelerograph seismic intensity meter, relative dispersion , independent systems into a unified platform, information integration, form a comprehensive system information integration as the core set of data acquisition, monitoring, control, management, early warning in one of the network, information and intelligent. 其目的旨在为各种地震监测数据,各种监测目标提供高自动化、高可靠性的集成监测平台,并提供一种开放式的、高可扩展性的具备功能动态配置、灵活重组特性的信息集成体系架构,实现功能与设备的分离、信息采集与信息使用的分离、数据与应用的分离,从而解除系统功能与设备紧耦合的绑定关系,消除当前日益严重的测震系统功能扩展与总体优化间的矛盾,达到地震监测网各分系统统一的目标。 Its purpose is intended for a variety of seismic monitoring data, various monitoring the goal of providing highly automated, highly reliable integrated monitoring platform and provide an open, highly scalable with features dynamic configuration, flexible information of restructuring properties integrated architecture, function and separation equipment, separation separation of data and application information collection and use of information, thereby unbind system functions and tight coupling device, eliminating the current growing seismic expansion and overall system functionality optimization of the conflict between, to earthquake monitoring network subsystems unity of purpose.

[0051] 以上对本发明实施例所提供的技术方案进行了详细介绍,本文中应用了具体个例对本发明实施例的原理以及实施方式进行了阐述,以上实施例的说明只适用于帮助理解本发明实施例的原理;同时,对于本领域的一般技术人员,依据本发明实施例,在具体实施方式以及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。 Described in detail describes the technical solution provided in [0051] the above embodiment of the present invention herein apply the principle of specific examples of embodiments of the present invention and embodiments are set forth in the above embodiments apply only to aid in understanding the present invention the principles of the embodiment; the same time, those of ordinary skill in the art, according to embodiments of the present invention, may make modifications at specific embodiments and application scope, Therefore, the specification shall not be construed as the present invention limits.

Claims (6)

1.一种基于MEMS加速度传感器的综合测震系统,其特征在于包括: 三轴向MEMS加速度传感器组,用于接收X、Y、Z三个方向的地震波信号; 频率选择分配组,所述频率选择分配组与所述3轴向MEMS加速度传感器组电连接,用于将接收来的地震波信号分解成所需信号; 模数转换组,所述模数转换组与所述频率选择分配组电连接,用于将分解后的所需信号进行模数转换得到数字信号; 处理模组,处理模组与所述模数转换组电连接,用于根据转换后得到的数字信号进行地震信息综合处理并将结果输出到地震台网中心。 An integrated seismic sensor based on MEMS accelerometer system, characterized by comprising: a three-axis MEMS acceleration sensor groups, for receiving seismic signals X, Y, Z three directions; frequency selective allocation set, the frequency 3 with the dispensing group selected axial MEMS acceleration sensor groups electrically connected to the means for receiving seismic signal into the desired signal; group D conversion, the analog to digital converter sets the frequency selective allocation set electrically connected for the desired signal after the analog to digital conversion decomposed to obtain a digital signal; the processing module, the processing module and a set of electrical digital converter connected to the mold, for seismic information integration processing according to the converted digital signal and It outputs the result to earthquake networks Center.
2.如权利要求1所述的基于MEMS加速度传感器的综合测震系统,其特征在于所述频率选择分配组包括: 甚宽频带监测单元,用于将接收来的地震波信号分解成甚宽频带监测所需信号; 宽频带监测单元,用于将接收来的地震波信号分解成宽频带地震计所需监测信号; 短周期监测单元,用于将接收来的地震波信号分解成短周期地震计所需监测信号。 2 based on an integrated seismic system of claim 1 MEMS acceleration sensor as claimed in claim wherein the frequency selective allocation set comprising: VBB monitoring unit, for receiving the seismic wave to the wideband signal into even Monitoring desired signal; broadband monitoring unit, for receiving the seismic wave to the broadband seismometer signal into a desired monitoring signal; short-period monitoring means for receiving the seismic wave to the signal into short-period monitoring required seismometer signal.
3.如权利要求2所述的基于MEMS加速度传感器的综合测震系统,其特征在于所述处理模组包括: 甚宽频带处理单元,用于将甚宽频带监测所需信号进行处理得到甚宽频带地震检测结果; 宽频带处理单元,用于将宽频带地震计所需监测信号进行处理得到宽频带地震检测结果; 短周期处理单元,用于将短周期地震计所需监测信号进行处理得到短周期地震检测结果O 3. Seismic system based on an integrated 2 MEMS acceleration sensor according to claim, characterized in that said processing module comprises: a processing unit even broadband, for very broadband signals are processed to obtain the desired monitor even Broadband with seismic detection result; broadband processing unit for monitoring the required broadband seismometer broadband seismic signals are processed to obtain a detection result; short-period processing unit for the required short-period monitoring signal obtained by processing the short seismograph O-period seismic detection results
4.如权利要求1所述的基于MEMS加速度传感器的综合测震系统,其特征在于所述模数转换组包括: 至少一路Α/D转换模块,用于对所需信号进行模数转换; 地震波采集分析应用单元,用于实现不同的地震监测方式及其选择,进而不同的地震监测功能。 4. Based Integrated Seismic system as claimed in claim 1 MEMS accelerometer of claim, wherein said analog to digital converter includes: at least one line Α / D converter module, the desired signal for analog to digital conversion; seismic waves acquisition and analysis application unit, for implementing different mode and selected seismic monitoring, seismic monitoring further different functions.
5.如权利要求1所述的基于MEMS加速度传感器的综合测震系统,其特征在于: 所述处理模组包括网络接口模组,所述处理模组通过所述网络接口模组与地震台网信息中心连接。 5. Based Integrated Seismic system as claimed in claim 1 MEMS accelerometer of claim, wherein: said processing module comprises a network interface module, the processing module via the network interface module and a seismic network information center connection.
6.如权利要求1所述的基于MEMS加速度传感器的综合测震系统,其特征在于: 所述模数转换组与所述处理模组之间通过系统总线电连接。 6. Based Integrated Seismic system as claimed in claim 1 MEMS accelerometer of claim wherein: said mold is electrically connected via a system bus between the group and the number of conversion processing module.
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