CN103353608A - Violent earthquake gestation and imminent earthquake sound monitoring probe and circuit module structure - Google Patents
Violent earthquake gestation and imminent earthquake sound monitoring probe and circuit module structure Download PDFInfo
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Abstract
The invention discloses a violent earthquake gestation and imminent earthquake sound monitoring probe and a circuit module structure. The probe structure is directly coupled with a base rock through a taper microphone head and conducts an earthquake sound to a sound transmission rod which is directly connected with the probe structure. A band-shape piezoelectric film sensor which is pasted on a surface of the sound transmission rod converts an earthquake sound signal into an electrical signal. The sound transmission rod, a band-shape piezoelectric film sensor group and a processing circuit are packaged through using a glue, and are fixed and protected. Besides, a probe circuit module structure carries out backup on the captured earthquake sound signal from three hierarchies of a sensor unit, the processing circuit and a transmission process so that reliability of a whole circuit system is increased. The sensor adopts the piezoelectric film sensor. There are the advantages that sensitivity is high; a dynamic scope is large and a frequency response scope is large too. By using the above technical scheme, the probes can be densely arranged in the base rocks which are under 150 meters to 200 meters of an earthquake-prone belt in a large scale so that violent-earthquake imminent earthquake sound monitoring work can be performed reliably for a long time and with low cost.
Description
Technical field
Patent of the present invention relates to violent earthquake monitoring instrument and design of circuit system field, is specifically related to a kind of based on violent earthquake preparation process and imminent earthquake monitoring probe structure and circuit modular structure based on the earthquake sounds detection method.
Background technology
In a single day the earth has accumulated huge energy through constantly motion and variation in some fragile area of the earth's crust, causes rock to break suddenly, perhaps causes the changing of the relative positions of preexisting fault, earthquake that Here it is.Strengthen the countermeasure of earthquake disaster, improve the technical merit of seismic monitoring prediction, earthquake disaster mitigation has direct relation and important meaning with the safety stable and people's lives and properties of the development society of country.
The place that stress is concentrated easily in the earth's crust before the violent earthquake, as: tomography, crack and cavity etc., its local Stress Field Distribution is a kind of labile state, when this astable stress field continues accumulation energy, the again distribution of stress field will occur a critical point, the again distributed process of this stress field or the dispose procedure of strain energy be deformation, micro cracking, the crack take rock mass produce and then develop into rock mass rupture on a large scale (sending out shake) be the form of expression.And an energy part that wherein discharges discharges with the form of sound wave, and the sound wave of radiation is earthquake sounds before the shake in rupture on a large scale at rock mass (sending out shake) before micro cracking, the crack production process.Therefore the ground acoustical signal that detects Earthquake Fault Zone has become a kind of important method of monitoring diastrophic activity, and the technical renovation of this respect will have positive role to inquiring into the aspects such as Seismogenic Process, fault activity, violent earthquake prediction about imminent earthquakes forecast.
To last century six the seventies so far, people have proposed multiple ground acoustic detection device for seismic monitoring, these devices mostly adopt to adopt the sonic transducer of single spectral response, on the earth's surface or subsurface detect the ground acoustical signal.As: disclosed technology among Chinese patent CN200510024084.3, Chinese patent CN201210192743.4, Chinese patent CN201110115987.8, the Chinese patent CN85100713, and be published in " earthquake sounds research with DS type earthquake sounds instrument " on " teachers college, Nanjing journal ", be published in " Primary Study of earthquake sounds and Corelation To Earthquakes " on " Chinese Journal of Geophysics ", be published in the technology of mentioning in " Computer Multimedia Technology is monitored with earthquake sounds and forecasted earthquake " on " Earthquakes In North China science ", etc.There is the problem of some general character in these technical schemes: first, earthquake sounds information comprise in the Seismogenic Process or imminent earthquake before the high-frequency ultrasonic that produces of subterrane section and on every side little fragmentation thereof and micro-fracture, comprise that also the low frequency that produces in the basement rock gross fracture and earth's crust creep process before the imminent earthquake can listen ripple and infrasonic wave (Tian Shixiu, " earthquake sounds and earthquake prediction ", physics [J], 1978).And present technical scheme is all used the sonic transducer of single spectral response, only closes the ground acoustical signal of frequency of heart below 300Hz, fails to accomplish effective detection for high-frequency signal; The second, a difficult point of earthquake sounds monitoring is to be difficult to continuous monitoring before the shake, and this requires instrument or equipment that extraordinary reliability (Zheng Zhizhen, " earthquake sounds information engineering progress of research and from now on direction ", Earthquake In China [J], 1989) is arranged.Yet, because underground environment is complicated, the reliability of sensor, treatment circuit, transmission course there is harsh requirement, yet, technique scheme is not all made effectively and reasonably backup to above-mentioned link, can monitor for a long time the ground acoustical signal to guarantee instrument or equipment; The 3rd, another difficult point of earthquake sounds monitoring is to be difficult for choosing suitable deep well as Earth sound observation well (Zheng Zhizhen before the shake, " earthquake sounds information engineering progress of research and from now on direction ", Earthquake In China [J], 1989), and the probe of existing instrument or equipment all needs to be installed on ready-made deep well, and to reduce installation cost, causing can't intensive large-scale laying earthquake sounds monitoring point.
In view of above-mentioned flaw, the invention discloses a kind of violent earthquake preparation process based on the earthquake sounds detection method and imminent earthquake monitoring probe structure and circuit modular structure.The contact unit structure conducts to the transaudient bar that directly links to each other with it by the transaudient head of taper and basement rock direct-coupling with earthquake sounds, by the banded piezoelectric film sensor that is affixed on transaudient bar surface the ground acoustical signal is converted into electric signal again.Wherein, the advantage of piezoelectric film sensor namely be highly sensitive, dynamic range is large, frequency response range light.In addition, the probe circuit modular structure has improved the reliability of whole Circuits System from sensor unit, treatment circuit, the ground acoustical signal backup of three levels of transmission course to catching.By technique scheme, so that probe can be in the layout of intensive, on a large scale that earthquake is multiple is with in underground 150 meters to the 200 meters basement rock, the monitoring of violent earthquake imminent earthquake earthquake sounds is able to for a long time, reliably, launch at low cost.
Summary of the invention
The objective of the invention is for a kind of low cost, high reliability, extensive dense layout being provided for existing violent earthquake monitoring field, can monitor for a long time the monitoring system of underground earthquake sounds change information, Monitoring Data can be used for the scientific research of violent earthquake preparation process, and prediction.
The objective of the invention is to be achieved through the following technical solutions.
A kind of violent earthquake imminent earthquake preparation process and imminent earthquake monitoring probe structure based on the ground sound detection comprise: cylindricality packaging plastic, pre-process circuit, power supply and signal cable, the transaudient head of taper, transaudient bar, banded piezoelectric film sensor group, wherein:
The transaudient head of described taper is used for and the basement rock direct-coupling, and earthquake sounds are passed to sonde configuration;
Described transaudient bar is used for fixing banded piezoelectric film sensor, and earthquake sounds are passed to banded piezoelectric film sensor by transaudient head;
The ground acoustical signal that described banded piezoelectric film sensor group is used for receiving is converted to electric signal;
Described cylindricality packaging plastic be used for banded piezoelectric film sensor group, pre-process circuit, power supply and signal cable be fixed in transaudient isodiametric cylindrical space of taper in, and make that sonde configuration is corrosion-resistant, waterproof, friction resistant;
Described pre-process circuit is used for signal filtering, amplification, and analog quantity is converted into digital quantity;
Described power supply and signal cable are used for the transmission pre-process circuit and output signal to ground base station, and well provides power supply for pre-process circuit.
Preferably, the transaudient head of described taper is solid rigid structure, and a link hole is arranged at its top, is used for being connected with transaudient bar.
Preferably, described transaudient bar is solid rigid structure, and xsect is regular hexagon, and a chain joint is arranged at the bottom, is used for linking with the transaudient head of taper.
Preferably, described banded piezoelectric film sensor group comprises 6 independently banded piezoelectric film sensors, and is affixed on respectively 6 sides of transaudient bar.
Preferably, described a kind of violent earthquake imminent earthquake preparation process and imminent earthquake monitoring probe structure based on the ground sound detection is installed in underground 150 meters to the 200 meters basement rock, by unexpansive cement embedding, wherein, the transaudient head of taper must with the basement rock direct-coupling.
A kind of violent earthquake imminent earthquake preparation process and imminent earthquake monitoring probe circuit modular structure based on the ground sound detection comprise: banded piezoelectric film sensor group, pre-process circuit, ground base station; Banded piezoelectric film sensor group, pre-process circuit comprise 3 groups of independent, arranged side by side, identical signal links, and the ground acoustical signal that will catch concurrently exports ground base station to, wherein:
Described banded piezoelectric film sensor group comprises 6 ribbon piezoelectric film sensors, form 3 pairs of banded piezoelectric film sensors pair with 21 pair, the ground acoustical signal that the every pair of banded piezoelectric film sensor is caught each banded piezoelectric film sensor wherein add and after export corresponding signal treatment circuit link in the pre-process circuit to;
Described pre-process circuit comprises 3 bars treatment circuit links, and every link comprises the filtering that links to each other successively and amplifier, analog to digital converter, and 3 links are parallel will process afterwards that signals export ground base station to;
Described ground base station comprises main control unit, wireless transmitting unit.
Preferably, every pair of mutually each other in addition backup of 2 pairs of banded piezoelectric film sensor in the described banded piezoelectric film sensor group;
Every pair of mutually each other in addition backup of 1 of each banded piezoelectric film sensor of banded piezoelectric film sensor centering in the described banded piezoelectric film sensor group.
Preferably, mutually each other in addition 2 backup of every bars treatment circuit link in the described pre-process circuit.
Preferably, main control unit is used for judgement and chooses 3 bars treatment circuit link Optimal Signals in the described ground base station, and is sent to earthquake sounds surveillance network Surveillance center by wireless transmitting unit.
Beneficial effect
The present invention contrasts prior art and has following beneficial effect:
1. sonde configuration of the present invention uses banded piezoelectric film sensor as earthquake sounds sonic detection element, because piezoelectric membrane is highly sensitive, dynamic range is large, frequency response range covers infrasonic wave, can listen ripple, ultrasound wave, make intensity, frequency and the frequency of the place of capture acoustic intelligence that probe can be complete, and be suitable for monitoring violent earthquake preparation process and prediction about imminent earthquakes work.
2. sonde configuration of the present invention is easy to make, corrosion-resistant, waterproof, friction resistant, and mounting means and existing drilling technique be compatibility mutually, and installation cost is low, is suitable for laying on a large scale, thick and fast the earthquake sounds monitoring point.
3. circuit modular structure of the present invention is from sensor unit, treatment circuit, the ground acoustical signal backup of three levels of transmission course to catching, improved the reliability of whole Circuits System, making probe be suitable for underground 150 meters to 200 directors Mi temporally, stably acoustical signal is monitored over the ground.
Description of drawings
Fig. 1 is sonde configuration synoptic diagram of the present invention
Fig. 2 is transaudient synoptic diagram of taper in the sonde configuration of the present invention
Fig. 3 is the transaudient bar synoptic diagram of taper in the sonde configuration of the present invention
Fig. 4 is circuit modular structure synoptic diagram of the present invention
Wherein: the transaudient head of 1-taper, 101-links the hole, the transaudient bar of 2-, the 201-chain joint, the banded piezoelectric film sensor group of 3-, the banded piezoelectric film sensor of 301-is to 1, the banded piezoelectric film sensor of 302-is to 2, the banded piezoelectric film sensor of 303-is to 3, the banded piezoelectric film sensor 1 of 3011-, the banded piezoelectric film sensor 2 of 3012-, the banded piezoelectric film sensor 3 of 3013-, the banded piezoelectric film sensor 4 of 3014-, the banded piezoelectric film sensor 5 of 3015-, the banded piezoelectric film sensor 6 of 3016-, 4-cylindricality packaging plastic, the 5-pre-process circuit, 5001-signal processing circuit link 1,5002-signal processing circuit link 2,5003-signal processing circuit link 3,5011-filtering and amplifier 1,5012-filtering and amplifier 2,5013-filtering and amplifier 3,5021-analog to digital converter 1,5022-analog to digital converter 2,5023-analog to digital converter 3,6-power supply and signal cable, the 7-ground base station, the 701-main control unit, the 702-wireless transmitting unit
Specific embodiments
For making the purpose, technical solutions and advantages of the present invention clearer, the below will be to describe be used to implementing optimum implementation of the present invention with reference to the accompanying drawings.
Referring to Fig. 1, Fig. 2, Fig. 3, show the embodiment of the invention a kind of violent earthquake imminent earthquake preparation process and imminent earthquake monitoring probe structure based on the ground sound detection, comprise: transaudient 1 of taper, transaudient bar 2, banded piezoelectric film sensor group 3, cylindricality packaging plastic 4, pre-process circuit 5, power supply and signal cable 6, wherein:
Transaudient 1 of described taper is used for and the basement rock direct-coupling, and earthquake sounds are passed to sonde configuration;
Described transaudient bar 2 is used for fixing banded piezoelectric film sensor, and earthquake sounds are passed to banded piezoelectric film sensor by transaudient head;
The ground acoustical signal that described banded piezoelectric film sensor group 3 is used for receiving is converted to electric signal;
Described cylindricality packaging plastic 4 be used for banded piezoelectric film sensor group 3, pre-process circuit 5, power supply and signal cable 6 be fixed in transaudient 1 isodiametric cylindrical space of taper in, and make that sonde configuration is corrosion-resistant, waterproof, friction resistant;
Described pre-process circuit 5 is used for signal filtering, amplification, and analog quantity is converted into digital quantity;
Described power supply and signal cable 6 is used for transmission pre-process circuit 5 and outputs signal to ground base station 7, and provides power supply for pre-process circuit 5.
Transaudient 1 of described taper is solid rigid structure, and a link hole 101 is arranged at its top, is used for being connected with transaudient bar.
Described transaudient bar 2 is solid rigid structure, and xsect is regular hexagon, and a chain joint 201 is arranged at the bottom, is used for linking with transaudient 1 of taper.
Described banded piezoelectric film sensor group 3 comprises 6 independently banded piezoelectric film sensors, and is affixed on respectively 6 sides of transaudient bar.
During implementation, transaudient 1 of taper is solid stainless steel with transaudient bar 2 used materials.Wherein, transaudient 1 bottom surface radius of circle 5cm of taper, high 15cm, bottom surface circle centre position have the screw thread link hole 101 of diameter 3cm; The long 30cm of transaudient bar, xsect are the regular hexagon of length of side 3cm, and the screw thread chain joint 201 of diameter 3cm is arranged at the bottom; Transaudient 1 of taper links hole 101 and screw thread chain joint 201 mechanical linkages with transaudient bar 2 by screw thread;
During implementation, banded piezoelectric film sensor group 3 comprises 6 PVDF piezoelectric film sensors, packing forms is metal band-shaped encapsulation, long 20cm, wide 2cm sticks with glue 6 sides in transaudient bar, and its sensitivity should be better than-180dBV * 104/Pa, frequency response range is greater than 10-3Hz-105Hz, and operating temperature range is greater than-50 ℃-100 ℃;
During implementation, pre-process circuit 5 should be loaded in the metal shielding box, and the I/0 interface is reserved with sub-miniature A connector;
During implementation, the probe number of assembling steps is as follows:
The first step is affixed on transaudient bar 2 sides with banded piezoelectric film sensor group 3;
Second step links transaudient 1 of transaudient bar 2 and taper;
In the 3rd step, piezoelectric film sensor group 3, power supply and signal cable 6 are connected with coaxial cable respectively with pre-process circuit 5;
The 4th step, the probe that connection is finished is put into mould, only expose taper transaudient 1 and power supply and signal cable 6, the encapsulating encapsulation, used colloid should be corrosion-resistant, waterproof, large, the friction resistant of hardness;
During implementation, described probe circuit modular structure is installed in underground 150 meters to the 200 meters basement rock, by unexpansive cement embedding, wherein, transaudient 1 of taper must with the basement rock direct-coupling.
Referring to Fig. 2, show the embodiment of the invention a kind of violent earthquake imminent earthquake preparation process and imminent earthquake monitoring probe circuit modular structure based on the ground sound detection, comprising: banded piezoelectric film sensor group 3, pre-process circuit 5, ground base station 7; Banded piezoelectric film sensor group 3, pre-process circuit 5 comprise 3 groups of independent, arranged side by side, identical signal links, and the ground acoustical signal that will catch concurrently exports ground base station 7 to, in the tool:
Described banded piezoelectric film sensor group 3 comprises 6 ribbon piezoelectric film sensors, form 3 pairs of banded piezoelectric film sensors pair with 21 pair, the ground acoustical signal that the every pair of banded piezoelectric film sensor is caught each banded piezoelectric film sensor wherein add and after export corresponding signal treatment circuit link in the pre-process circuit 5 to;
Described pre-process circuit 5 comprises 3 bars treatment circuit links, and every link comprises the filtering that links to each other successively and amplifier, analog to digital converter, and 3 links are parallel will process afterwards that signals export ground base station 7 to;
Described ground base station comprises main control unit 701, wireless transmitting unit 702.
Preferably, every pair of mutually each other in addition backup of 2 pairs of banded piezoelectric film sensor in the described banded piezoelectric film sensor group 3;
Every pair of mutually each other in addition backup of 1 of each banded piezoelectric film sensor of banded piezoelectric film sensor centering in the described banded piezoelectric film sensor group 3.
Preferably, mutually each other in addition 2 backup of every bars treatment circuit link in the described pre-process circuit 5.
Preferably, main control unit is used for judgement and chooses 3 bars treatment circuit link Optimal Signals in the described ground base station, and is sent to earthquake sounds surveillance network Surveillance center by wireless transmitting unit.
During implementation, the used filtering of every bars treatment circuit link and amplifier band width are DC-1MHz in the pre-process circuit 5, and analog to digital converter adopts ∑ Δ analog to digital converter;
During implementation, main control unit 701 nucleus modules adopt the SoC chip of MCU+DSP in the ground base station 7, and wireless transmitting unit 702 adopts GPRS module and TD-SCDMA module;
During implementation, for better noise immunity and farther transmission range, pre-process circuit 5 adopts the RS-422 standards to communicate with ground base station 7,
Above content is the further description of the present invention being done in conjunction with a kind of embodiment, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. violent earthquake preparation process and imminent earthquake monitoring system based on an earthquake sounds detection method, comprise: power management module 1, master control and data storage sending module 2, signal transmission pathway module 3, signal processing module 4 is characterized in that: comprise that also three groups can be detected the differently sensor array module 5 of several ripple frequency ranges and sound wave source direction.
2. according to right 1 described a kind of violent earthquake preparation process and imminent earthquake monitoring system based on the earthquake sounds detection method, it is characterized in that: wherein, described sensor array module 5 comprises infrasonic sensor group 501, can listen wave sensor group 502, ultrasonic sensor group 503, and every group of sensor comprises at least three same type of sensor; Every group of sensor internal is for being connected in parallel, and signal adds with rear and is connected with signal processing module 4 respectively.
3. according to right 1 described a kind of violent earthquake preparation process and imminent earthquake monitoring system based on the earthquake sounds detection method, it is characterized in that: wherein, described signal processing module 4 comprises wave filter 401, amplifier 402, Channel-shifted and analog to digital converter 403; Wave filter 401, amplifier 402, Channel-shifted and analog to digital converter 403 are connected successively; Wave filter 401 input signals are from sensor array module 1, and Channel-shifted and analog to digital converter 403 output signals are connected with signal transmission pathway module 3.
4. according to right 1 described a kind of violent earthquake preparation process and imminent earthquake monitoring system based on the earthquake sounds detection method, it is characterized in that: wherein, described signal transmission pathway module 3 comprises at least two signal-transmitting cables 301, at least one signal repeater 302, but and transmission cable 301 signal transmissions and power supply; Transmission cable 301, signal repeater 302 alternately are connected successively; Signal transmission pathway module 3 input signals are connected with the first transmission cable 301, and signal transmission pathway module 3 output signals are connected with master control and data storage sending module 2 by position, end transmission cable 301; One than signal repeater more than 302 and only of transmission cable 301 quantity.
5. according to right 1 described a kind of violent earthquake preparation process and imminent earthquake monitoring system based on the earthquake sounds detection method, it is characterized in that: wherein, described master control and data storage sending module 2 comprise main control unit 201, data stored transmit Unit 202; Main control unit 201, data stored transmit unit 202 are connected successively; Main control unit 201 input signals are from transmission channel module 3.
6. according to right 1 described a kind of violent earthquake preparation process and imminent earthquake monitoring system based on the earthquake sounds detection method, it is characterized in that: wherein, described power management module 1 comprises solar energy storage unit 101,220V AC power adaptation unit 102, accumulator 103; Solar energy storage unit 101,220V AC power adaptation unit 102 are connected with accumulator 103 respectively, and accumulator 103 is respectively master control and data storage sending module 2, signal transmission pathway module 3, signal processing module 4 power supply is provided.
7. according to right 1 described a kind of violent earthquake preparation process and imminent earthquake monitoring system based on the earthquake sounds detection method, it is characterized in that: wherein, described sensor array module 1 is installed on the earth's surface below 100 meters, and with basement rock or closely knit soil close contact; Described signal processing module 2 and sensor array module 1 adjacent installation, and do not contact with basement rock or closely knit soil; In the described signal transmission pathway module 3, transmission cable 301, signal repeater 302 are uniformly distributed in boring or the deep-well as one group take 50 meters distances, and the position, end is transmission cable 301; Described power management module 1, master control and data storage sending module 2 are installed on the earth's surface, and adjacent with boring or deep-well.
8. according to right 2 described a kind of violent earthquake preparation process and imminent earthquake monitoring systems based on the earthquake sounds detection method, it is characterized in that: wherein, described infrasonic sensor group 501 covers the frequency of sound wave scope including but not limited to 0-20Hz; The described wave sensor group 502 of listening covers the frequency of sound wave scope including but not limited to 20Hz-20kHz; Described ultrasonic sensor group 503 covers the frequency of sound wave scope including but not limited to 20kHz-1MHz.
9. according to right 2 described a kind of violent earthquake preparation process and imminent earthquake monitoring systems based on the earthquake sounds detection method, it is characterized in that: wherein, sensor is uniformly distributed in basement rock or closely knit soil installed surface in the described sensor array module 5, and each mounting points includes at least one infrasonic sensor, can listen wave sensor, ultrasonic sensor; Adjacent sensors mounting points 9 is an identical value with the angle of sensor array installed surface 8 lines of centres; The earthquake sounds that sensor array module 5 receives can be by analyzing unique definite its Sounnd source direction of each mounting points sensor received signal intensity.
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| CN2013102501467A CN103353608A (en) | 2013-06-17 | 2013-06-17 | Violent earthquake gestation and imminent earthquake sound monitoring probe and circuit module structure |
| PCT/CN2013/079810 WO2014201751A1 (en) | 2013-06-17 | 2013-07-22 | Probe and device for monitoring imminent earthquake |
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| CN2013102501467A CN103353608A (en) | 2013-06-17 | 2013-06-17 | Violent earthquake gestation and imminent earthquake sound monitoring probe and circuit module structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014201750A1 (en) * | 2013-06-17 | 2014-12-24 | 北京大学深圳研究生院 | System for monitoring imminent earthquake and installation method therefor |
| CN104570058A (en) * | 2014-12-26 | 2015-04-29 | 深圳市微纳集成电路与系统应用研究院 | Impending earthquake monitoring probe structure based on multiple sensors |
| CN105022087A (en) * | 2015-07-13 | 2015-11-04 | 赵东明 | Imminent earthquake sound detection method, earthquake sound probe implementing the method and application |
| CN105759308A (en) * | 2014-12-17 | 2016-07-13 | 北京大学深圳研究生院 | Great earthquake impending earthquake sound monitoring probe unit structure based on piezoelectric cable sensor and circuit module structure |
| CN105759307A (en) * | 2014-12-17 | 2016-07-13 | 北京大学深圳研究生院 | Great earthquake inoculation process based on earthquake sound detection method and impending earthquake monitoring probe |
| CN105785432A (en) * | 2014-12-17 | 2016-07-20 | 北京大学深圳研究生院 | Multi-sensor-based violent earthquake impending monitoring system |
| CN106033123A (en) * | 2015-03-11 | 2016-10-19 | 北京大学深圳研究生院 | Sensing probe AETA suitable for imminent earthquake monitoring of great earthquake |
| CN107797114A (en) * | 2016-09-02 | 2018-03-13 | 法雷奥汽车内部控制（深圳）有限公司 | A kind of ultrasonic sensor for motor vehicle |
| CN110568481A (en) * | 2019-09-23 | 2019-12-13 | 深圳市深创谷技术服务有限公司 | earth sound sensing probe and earthquake detection system |
| CN113721291A (en) * | 2021-08-10 | 2021-11-30 | 北京大学深圳研究生院 | Integrated earth sound sensing system and method |
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| WO2014201750A1 (en) * | 2013-06-17 | 2014-12-24 | 北京大学深圳研究生院 | System for monitoring imminent earthquake and installation method therefor |
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| CN105759307A (en) * | 2014-12-17 | 2016-07-13 | 北京大学深圳研究生院 | Great earthquake inoculation process based on earthquake sound detection method and impending earthquake monitoring probe |
| CN105785432A (en) * | 2014-12-17 | 2016-07-20 | 北京大学深圳研究生院 | Multi-sensor-based violent earthquake impending monitoring system |
| CN104570058A (en) * | 2014-12-26 | 2015-04-29 | 深圳市微纳集成电路与系统应用研究院 | Impending earthquake monitoring probe structure based on multiple sensors |
| CN106033123A (en) * | 2015-03-11 | 2016-10-19 | 北京大学深圳研究生院 | Sensing probe AETA suitable for imminent earthquake monitoring of great earthquake |
| CN105022087A (en) * | 2015-07-13 | 2015-11-04 | 赵东明 | Imminent earthquake sound detection method, earthquake sound probe implementing the method and application |
| CN107797114A (en) * | 2016-09-02 | 2018-03-13 | 法雷奥汽车内部控制（深圳）有限公司 | A kind of ultrasonic sensor for motor vehicle |
| CN110568481A (en) * | 2019-09-23 | 2019-12-13 | 深圳市深创谷技术服务有限公司 | earth sound sensing probe and earthquake detection system |
| CN113721291A (en) * | 2021-08-10 | 2021-11-30 | 北京大学深圳研究生院 | Integrated earth sound sensing system and method |
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| WO2014201751A1 (en) | 2014-12-24 |
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