CN103033844A - Single station earthquake P wave detection warning device - Google Patents
Single station earthquake P wave detection warning device Download PDFInfo
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- CN103033844A CN103033844A CN2012105412297A CN201210541229A CN103033844A CN 103033844 A CN103033844 A CN 103033844A CN 2012105412297 A CN2012105412297 A CN 2012105412297A CN 201210541229 A CN201210541229 A CN 201210541229A CN 103033844 A CN103033844 A CN 103033844A
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Abstract
The invention discloses a single station earthquake P wave detection warning device and relates to seismological observation technology. The single station earthquake P wave detection warning device comprises a data acquisition module, a data analysis and logging module and a communication and alarm module, wherein the data acquisition module, the data analysis and logging module and the communication and alarm module are connected in sequence. The data acquisition module is composed of three-axial force balance acceleration sensor and an external connection acceleration sensor interface. The data analysis and logging module is composed of a analog-digital (AD) convertor, a digital signal processor (DSP), an advanced RISC machine (ARM) and system thereof, a global position system (GPRS) module, a P wave early warning algorithm, a real-time clock and a secure digital (SD) card storage. The communication and alarm module is composed of a computer, an alarm box and a P wave early warning instrument application software. The single station earthquake P wave detection warning device has the functions of acquisition, storage, analysis and alarm. Earthquake monitoring and earthquake P wave early warning are achieved only a single device is needed. The single station earthquake P wave detection warning device has the advantages of being small in size, light, easy to carry, convenient to install, low in cost and suitable for network layout of an earthquake early warning project and a national earthquake early warning science research project for a key project.
Description
Technical field
The present invention relates to Observation Technology of Earthquakes, relate in particular to a kind of single station P-wave and detect early-warning apparatus.
Background technology
When earthquake occurs, at first be to occur simultaneously with 2 seismic events of S ripple (shear wave) from focus P ripple (compressional wave).The P ripple is propagated with the speed of per second 3.5km with speed, the S ripple of Mei Miao Approximately 6km at the shallow-layer of the earth's crust.Because the speed that the P ripple is propagated with the S ripple is different, at first can feel slight rocking (P ripple), then be large rocking (S ripple).From focus more away from Zhe Inter every just longer.
Because P ripple pace in all seismic events is the fastest, also arrive at the earliest, and the P wave energy is transmitted in solid, liquid or gas.The P-wave early warning is exactly to utilize the P ripple different with the transmission speed of S ripple, utilize travel-time difference between the two to position earthquake, damage envelope and degree that earthquake is possible are carried out rapid evaluation, send early warning the blink before seismic wave arrives devastatingly.
Existing P-wave early warning system is by a plurality of seismograph station networkings or sensor network seismic activity to be monitored, and after detecting P ripple and S ripple, estimates by the difference of calculating P ripple and S ripple time of arrival and the earthquake magnitude of earthquake then to send early warning signal.
The shortcoming and defect of existing P-wave early warning system is:
1, the laying of seismograph station construction and sensor network investment is larger, and the duration is longer, and construction requirement is higher;
Need a plurality of seismograph stations or sensor to monitor simultaneously when 2, carrying out the P-wave early warning.
Summary of the invention
Purpose of the present invention just is to overcome the shortcoming and defect that prior art exists, and provides a kind of integrated earthquake data acquisition, record, processing and warning function to detect early-warning apparatus in single station of one P-wave.
The object of the present invention is achieved like this:
One, single station P-wave detection early-warning apparatus (abbreviation early-warning apparatus)
Comprise the data acquisition module, data analysis logging modle and communication and the alarm module that connect successively;
Described data acquisition module is comprised of three axial force balance formula acceleration transducers and profile acceleration sensor interface;
Described data recording analysis module is comprised of AD converter, DSP, ARM and system thereof, GPS module, P ripple warning algorithm, real-time clock and the storage of SD card;
Three axial force balance formula acceleration transducers, AD conversion, DSP are connected system and are connected successively with ARM, realize real time data analyzed and send to the communication alarm module; P ripple warning algorithm is implanted in ARM and the system thereof, and the data of ARM and system thereof are stored in the card storage;
The GPS module is connected with DSP with the AD conversion respectively, realizes that single station P-wave detects the positional information of the global location of early-warning apparatus, cooperates real-time clock to realize precise time control simultaneously;
Real-time clock is connected with DSP22, cooperates with the GPS module to realize precise time control;
Described communication alarm module is comprised of computing machine, warning box and P ripple early-warning apparatus application software; Computing machine is the connection of being connected with warning box, realizes reporting to the police; Application software is implanted in the computing machine.
Two, single station P-wave detection method for early warning (abbreviation method for early warning)
This method for early warning comprises the following steps:
1. three axial force balance formula acceleration transducer Real-time Collection vibration data;
2. by the data recording analysis module real-time vibration data is analyzed;
3. then report to the police after picking up the P-wave signal when communication and alarm module;
4. communication and alarm module are connected with network, send earthquake alarm information to terminal;
5. upload simultaneously geological data function, online updating function and instrument state.
Principle of work of the present invention is:
Data acquisition module Real-time Collection acceleration information also is sent to the data analysis logging modle; Pick up P ripple information when the data analysis logging modle, then utilize former seconds Wave data of P ripple primary wave to calculate time, place and earthquake magnitude that earthquake occurs.When earthquake may produce destruction to protected object, the alarm module of then initiating earthquake sent alerting signal, and reminding user is taked the emergency disposal measure.
The present invention has following advantages and good effect:
1, integrates earthquake data acquisition, storage, analysis and report to the police, only need a single device just can realize seismic monitoring and P-wave early warning;
2, have little, the light portative characteristics of volume, easy for installation, cost is lower;
3, being applicable to the earthquake pre-warning project of Important Project and the platform screen cloth of national earthquake pre-warning Science Research Project establishes.
Description of drawings
Fig. 1 is block diagram of the present invention.
Among the figure:
10-data acquisition module,
11-three axial force balance formula acceleration transducers,
12-profile acceleration sensor interface;
20-data recording analysis module,
21-AD(analog to digital converter),
22-DSP(Digital Signal Processor, digital signal processor),
23-ARM and system thereof (ARM, Advanced RISC Machines, processor),
24-GPS module (GPS, Global Position System, GPS),
25-P ripple warning algorithm,
26-real-time clock,
The storage of 27-SD card;
30-communication and alarm module,
31-computing machine;
The 32-warning box,
33-P ripple early-warning apparatus application software;
Fig. 2 uploads the geological data functional flow diagram;
Among the figure:
41-detects the signal of ARM and system's 23 transmissions thereof;
Whether 42-has needs to report to the police;
43-sends alerting signal to warning box;
The 44-interconnection network;
45-uploads geological data to terminal.
Fig. 3 is the online updating functional flow diagram.
Among the figure:
51-interconnection network is to specifying network address;
52-whether renewal arranged;
53-down loading updating program;
54-installation procedure;
55-withdraw from update functions.
Fig. 4 uploads the instrument state functional flow diagram;
Among the figure:
61-interconnection network is to terminal;
62-monitoring instrument state;
63-whether fault-signal arranged;
64-send the instrument failure alerting signal to terminal.
Embodiment
Below in conjunction with drawings and Examples to the detailed description of the invention.
1, overall
Such as Fig. 1, the present invention includes successively data acquisition module 10, the data analysis logging modle 20 that connects and communicate by letter and alarm module 30.
2, functional block
1) data acquisition module 10
(1) three axial force balance formula acceleration transducer 11
The main reference technical indicator of the sensor that three axial force balance formula acceleration transducers 11 are selected comprises:
Measurement range: ± 2g;
Sensitivity: ± 1.25V/g;
Dynamic range:〉135dB;
Damping constant: 0.7;
Output impedance:＜1 Ω;
The natural frequency of vibration: 80Hz;
Frequency band: 0～80Hz;
Quiescent current is three-component:＜10mA;
The quiescent current list divides to＜3mA;
Cross sensitivity: 1 ‰ g/g;
The linearity:＜full-scale 1%.
As select the SLJ-100 type three axial force balance formula accelerometers of China Seismological Bureau Engineering Mechanical Institute.
The function of three axial force balance formula acceleration transducers 11 is the continuously uninterrupted Real-Time Monitoring of low noise and Real-time Collection vibration data.
(2) the profile acceleration sensor interface 12
Profile acceleration sensor interface 12 is the expansion sensor interfaces that are equipped with, and is used for the profile acceleration sensor.
2) the data recording analysis module 20
Data recording analysis module 20 is comprised of AD converter 21, DSP22, ARM and system 23 thereof, GPS module 24, P ripple warning algorithm 25, real-time clock 26 and SD card storage 27;
Its annexation is:
Three axial force balance formula acceleration transducers 11, AD conversion 21, DSP22 are connected system 23 and are connected successively with ARM, realize real time data analyzed and send to communicating by letter and alarm module 30; P ripple warning algorithm 25 is implanted in ARM and the system 23 thereof, and the data of ARM and system 23 thereof are stored in the SD card storage 27;
Real-time clock 26 is connected with DSP22, cooperates with GPS module 24 to realize precise time control.
（1）AD21
AD21 is a kind of analog to digital converter commonly used, is used for the signal that three axial force balance formula acceleration transducers 11 and the profile acceleration sensor that is connected with profile acceleration sensor interface 12 send is carried out analog to digital conversion.
（2）DSP22
DSP22 is a kind of digital signal processor commonly used.
(3) ARM and system 23 thereof
ARM and system 23 thereof are a kind of processor commonly used and system thereof, have implanted P ripple warning algorithm 25, have realized the function to the early warning of P ripple.
(4) the GPS module 24
(5) P ripple warning algorithm 25
P ripple warning algorithm 25 is implanted in ARM and the system 23 thereof, its objective is to calculate earthquake occurrence positions and earthquake magnitude, to judge earthquake whether the early warning target is had destruction.Algorithm mainly comprise the P ripple then, the algorithm of epicenter azimuth, epicentral distance and earthquake magnitude, main reference write this algorithm with Publication about Document.
[1]Allen?R?V.Automatic?earthquake?recognition?and?timing?from?single?traces[J].Bulletin?of?the?Seismological?Society?of?America,1978,68(5):1521.
[2]Leonard?M,Kennett?B.Multi-component?autoregressive?techniques?for?the?analysis?of?seismograms[J].Physics?of?the?earth?and?planetary?interiors,1999,113(1-4):247-63.
[3] Zhou Yanwen. based on the early earthquake method for early warning research [D] of separate unit P ripple record; Lanzhou Seismic Inst., Chinese Bureau of Seismology, 2008.
[4]Odaka?T,Ashiya?k,TSUKADA?S,et?al.A?new?method?of?quickly?estimating?epicentral?distance?and?magnitude?from?a?single?seismic?record?[J].Bulletin?of?the?Seismological?Society?of?America,2003,93(1):526.
(6) real-time clock 26
Real-time clock 26 is a kind of clocks commonly used, cooperates with GPS module 24 to realize precise time control.
(7) storage of SD card 27
3) communication alarm module 30
P ripple early-warning apparatus application software 33 is implanted in the computing machine 31.
(1) computing machine 31
(2) warning box 32
The function of warning box 32 is that the alarm command according to computing machine 31 sends corresponding warning.
(3) P ripple early-warning apparatus application software 33
P ripple early-warning apparatus application software is implanted in the computing machine 33, has realized the function of uploading geological data, uploading instrument state and on-line software updating.
3, principle of work
Three axial data of data recording analysis module 20 real time record three axial force balance formula acceleration transducers, simulating signal is converted into digital signal, but and plurality of sampling rates record, such as 50HZ, 100HZ, 200HZ etc., has P ripple warning function, when detecting P-wave, namely several seconds waveforms of P wavefront are analyzed, determine time, place and earthquake magnitude that earthquake occurs; Geological data can be stored with the several data form; Data recording analysis module 20 can be analyzed real time data and send to communication and alarm module 30.
Communication and the Main Function of alarm module 30 are to detect the mutual of early-warning apparatus and terminal for earthquake alarm and single station P-wave, the realization earthquake alarm, upload geological data, upload the function of instrument state and on-line software updating.
4, P ripple early-warning apparatus application software functional sequence
The function that P ripple early-warning apparatus application software realizes comprises to be uploaded geological data, online updating and uploads instrument state.
1) uploads the geological data functional sequence
Such as Fig. 2, upload the geological data functional sequence and realized the function of reporting to the police uploading after the earthquake geological data, trigger alarm case.Its flow process is as follows:
1. detect the signal 41 that ARM and system 23 thereof send;
Whether need report to the police 42, be then to enter next step, otherwise turn back to step 1. if 2. having;
3. send alerting signal 43 to warning box;
4. interconnection network 44;
5. upload geological data 45 to terminal, flow process finishes.
2) online updating functional sequence
Such as Fig. 3, the online updating functional sequence has been realized the function of the online updating of P ripple early-warning apparatus application software.Its flow process is as follows:
1. interconnection network is to specifying network address 51;
2. whether have and upgrade 52, be then to enter next step, otherwise turn back to step 1.;
3. the down loading updating program 53;
4. installation procedure 54;
5. withdraw from update functions 55, flow process finishes.
3) upload the instrument state functional sequence
Such as Fig. 4, upload the function that the instrument state functional sequence has realized sending to terminal the instrument state data.When the staff on terminal finds fault alarm is arranged, can in time send the maintenance personal to go maintenance.Its flow process is as follows:
1. interconnection network is to terminal 61;
2. the monitoring instrument state 62;
Whether 3. fault-signal 63 arranged, be then to enter next step, otherwise turn back to step 2.;
4. send instrument failure alerting signal 64 to terminal, flow process finishes.
Claims (5)
1. single station P-wave detects early-warning apparatus, it is characterized in that:
Comprise data acquisition module (10), data analysis logging modle (20) and the communication and the alarm module (30) that connect successively;
Described data acquisition module (10) is by three axial force balance formula acceleration transducer (11) and external adding
Speed pickup interface (12) forms;
Described data recording analysis module (20) is by AD converter (21), DSP(22), ARM and system (23) thereof, GPS module (24), P ripple warning algorithm (25), real-time clock (26) and SD card storage (27) form;
Three axial force balance formula acceleration transducers (11), AD change (21), DSP(22) be connected system (23) with ARM and connect successively, realize real time data analyzed and send to communication alarm module (30); P ripple warning algorithm (25) is implanted in ARM and the system (23) thereof, and the data of ARM and system thereof (23) are stored in the card storage (27);
GPS module (24) is connected with DSP(22 with AD conversion (21) respectively and is connected, and realizes that single station P-wave detects the positional information of the global location of early-warning apparatus, cooperates real-time clock (26) to realize precise time control simultaneously;
Real-time clock (26) is connected with DSP22, cooperates with GPS module (24) to realize precise time control;
Described communication alarm module (30) is comprised of computing machine (31), warning box (32) and P ripple early-warning apparatus application software (33);
Computing machine (31) is connected 32 with warning box) the front and back connection, realize reporting to the police; Application software (33) is implanted in the computing machine (31).
2. detect the method for early warning of early-warning apparatus based on single station claimed in claim 1 P-wave, it is characterized in that comprising the following steps:
1. three axial force balance formula acceleration transducer Real-time Collection vibration data;
2. by the data recording analysis module real-time vibration data is analyzed;
3. then report to the police after picking up the P-wave signal when communication and alarm module;
4. communication and alarm module are connected with network, send earthquake alarm information to terminal;
5. possess simultaneously function and the instrument state of uploading geological data function, online updating.
3. by method for early warning claimed in claim 2, it is characterized in that uploading the geological data functional sequence and be:
4. by method for early warning claimed in claim 2, it is characterized in that the online updating functional sequence is:
5. by method for early warning claimed in claim 2, it is characterized in that uploading the instrument state functional sequence and be:
Interconnection network is to terminal (61);
Send instrument failure alerting signal (64) to terminal, flow process finishes.
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| CN2012105412297A CN103033844A (en) | 2012-12-12 | 2012-12-12 | Single station earthquake P wave detection warning device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103336299A (en) * | 2013-06-26 | 2013-10-02 | 桂林电子科技大学 | Seismic monitoring and early warning device |
| CN103680070A (en) * | 2013-12-13 | 2014-03-26 | 王暾 | Earthquake early warning monitor location change identification method based on acceleration sensor |
| CN103871206A (en) * | 2014-04-05 | 2014-06-18 | 罗小府 | P-wave earthquake automatic alarm |
| CN104269036A (en) * | 2014-10-02 | 2015-01-07 | 江阴润玛电子材料股份有限公司 | Circuit working face monitoring and alarming system based on wireless communication |
| CN104360377A (en) * | 2014-10-16 | 2015-02-18 | 中国地震局工程力学研究所 | Structure and slope seismic response monitoring and rapid reporting instrument |
| CN104765068A (en) * | 2015-04-20 | 2015-07-08 | 上海同磊土木工程技术有限公司 | Earthquake wave real-time processing and analysis recorder and processing method thereof |
| CN105572738A (en) * | 2016-01-29 | 2016-05-11 | 禁核试北京国家数据中心 | Method for detecting nuclear explosion earthquake event at specific area by means of single station |
| CN105738950A (en) * | 2016-01-29 | 2016-07-06 | 禁核试北京国家数据中心 | Directive bunching detection method aiming at specific regions |
| CN113031055A (en) * | 2021-03-25 | 2021-06-25 | 浙江大学 | Space steel structure vibration response capturing and monitoring system based on earthquake early warning |
| CN113112761A (en) * | 2021-04-27 | 2021-07-13 | 中国地震局地球物理研究所 | Site early warning device based on data fusion and use method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336299A (en) * | 2013-06-26 | 2013-10-02 | 桂林电子科技大学 | Seismic monitoring and early warning device |
| CN103336299B (en) * | 2013-06-26 | 2016-03-30 | 桂林电子科技大学 | A kind of seismic monitoring prior-warning device |
| CN103680070B (en) * | 2013-12-13 | 2016-01-13 | 王暾 | Based on the shift in position recognition methods of the earthquake pre-warning monitor of acceleration transducer |
| CN103680070A (en) * | 2013-12-13 | 2014-03-26 | 王暾 | Earthquake early warning monitor location change identification method based on acceleration sensor |
| CN103871206A (en) * | 2014-04-05 | 2014-06-18 | 罗小府 | P-wave earthquake automatic alarm |
| CN104269036A (en) * | 2014-10-02 | 2015-01-07 | 江阴润玛电子材料股份有限公司 | Circuit working face monitoring and alarming system based on wireless communication |
| CN104360377A (en) * | 2014-10-16 | 2015-02-18 | 中国地震局工程力学研究所 | Structure and slope seismic response monitoring and rapid reporting instrument |
| CN104765068A (en) * | 2015-04-20 | 2015-07-08 | 上海同磊土木工程技术有限公司 | Earthquake wave real-time processing and analysis recorder and processing method thereof |
| CN105572738A (en) * | 2016-01-29 | 2016-05-11 | 禁核试北京国家数据中心 | Method for detecting nuclear explosion earthquake event at specific area by means of single station |
| CN105738950A (en) * | 2016-01-29 | 2016-07-06 | 禁核试北京国家数据中心 | Directive bunching detection method aiming at specific regions |
| CN105738950B (en) * | 2016-01-29 | 2017-03-15 | 禁核试北京国家数据中心 | A kind of directive property pack detection method for given area |
| CN113031055A (en) * | 2021-03-25 | 2021-06-25 | 浙江大学 | Space steel structure vibration response capturing and monitoring system based on earthquake early warning |
| CN113112761A (en) * | 2021-04-27 | 2021-07-13 | 中国地震局地球物理研究所 | Site early warning device based on data fusion and use method thereof |
| CN113112761B (en) * | 2021-04-27 | 2024-03-22 | 中国地震局地球物理研究所 | In-situ early warning device based on data fusion and application method thereof |
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Application publication date: 20130410 |