CN1837857A - Vibration feature sensor - Google Patents
Vibration feature sensor Download PDFInfo
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- CN1837857A CN1837857A CN 200610025793 CN200610025793A CN1837857A CN 1837857 A CN1837857 A CN 1837857A CN 200610025793 CN200610025793 CN 200610025793 CN 200610025793 A CN200610025793 A CN 200610025793A CN 1837857 A CN1837857 A CN 1837857A
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Abstract
This invention relates to a vibration feature sensor. With space navigation and satellite time service function, it comprises an acceleration vibration pickup, a waveform recorder, a real-time process chip, a protective shell, an A/D circuit board to convert the acceleration signal acquired by the vibration pickup into digital signal and input into the process chip, and a GPS antenna and signal process unit to take space position and time service according to the satellite signal from the antenna and process the signal for earthquake decision by the preset threshold as well as outputting command signal. This invention has high precision and reliability.
Description
Technical field:
The present invention relates to a kind of vibration transducer, particularly relate to a kind of vibration feature sensor that is used for vibration monitoring and process analysis procedure analysis.
Background technology:
China is one of the most serious country that suffers disaster from an earthquake in the world.Since 1900, the number that China dies from earthquake reaches 550,000 more than, accounts for 53% of global earthquakes death toll.The continental earthquake in the twentieth century whole world 1/3rd occurs in China, since 1949, more than 100 ruinous earthquake attacked the whole nation 22 provinces (autonomous region, municipality directly under the Central Government), cause 270,000 surplus the people die, account for 54% of national all kinds of disaster death tolls.Earthquake disaster is one of major casualty of being faced of China city, and the big city that 6 degree～9 degree seismic regioies, continent account for 60%, 23 provincial capital of area and 2/,300 ten thousand above populations is positioned at the explosive area occurred frequently more than seismic intensity 7 degree.Along with society and rapid economy development, in case earthquake takes place, its loss that brings will be very huge.Thereby earthquake monitored, so that for the antidetonation mitigation provides direct technical data and disposes foundation, thereby earthquake disaster mitigation has effectively just become crucial work.
In the apparatus that earthquake is monitored, vibration transducer is the important devices of monitor earthquake vibration performance.Japan Yamateke company limited has released one and has overlapped spectrum intensity (SI-Spectrum Intensity) sensor that is used for seismic monitoring.The visible Fig. 1 of the structural representation of this sensor, it is made up of acceleration pick-up instrument 1 ', autodiagnosis circuit board 2 ', kymograph 3 ', real-time process chip 4 ' and protecting sheathing 5 '.Described acceleration pick-up instrument 1 ' is a piezoelectric transducer, and it utilizes the piezoelectric effect of piezoelectric that the stress-strain signal of sensing is converted into voltage signal.During this SI working sensor, acceleration pick-up instrument 1 ' is handled input real-time process chip 4 ' in back with the vibration signal in the earthquake place that collects by autodiagnosis circuit board 2 ', this real-time process chip 4 ' is carried out vibration period, peak acceleration, place displacement, the calculating of SI value to the vibration signal of input, and outwards output can be for the earthquake warning and the site liquefaction alarm signal of other equipment or device utilization after judging, meanwhile, kymograph 3 ' should be noted by seismic acceleration signal that the period collected and that handle by analysis in real time.So-called site liquefaction, the saturated cohesiveless soil that is meant the place are under geological process, and the hole of soil is pressed increase, effective stress to reduce, is the process of liquid state by solid state transformation.
Because the signal of above-mentioned SI sensor and processing all is an analog quantity,, is subjected to the influence of other vibroseis of environment and the situation that mistake is alarmed takes place through regular meeting so precision is not high.In addition, this SI sensor lacks the function of direct knowledge sample body region location of living in, thereby difficulty is built into the detection net jointly with other same type of sensor, to monitor the seismic process overall picture of a certain geographic area.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, a kind of high precision vibration feature sensor with space orientation and satellite time service function is provided, its have prevent to report by mistake, early warning is reliable and the advantage of space-time location, can reach the purpose of monitor earthquake overall process in order to make up complete monitoring net.
It is as follows that the present invention solves the technical scheme that its technical matters takes:
A kind of vibration feature sensor comprises acceleration pick-up instrument, kymograph, real-time process chip and protecting sheathing, and it is characterized in that: it also includes A/D change-over circuit plate, gps antenna and gps signal treating apparatus; Described acceleration pick-up instrument itself has the signal condition function and the three-dimensional acquired signal is carried out in the place vibration, its be connected to real-time process chip after A/D change-over circuit plate is connected, described A/D change-over circuit plate is the acceleration voltage conversion of signals of acceleration pick-up instrument collection digital signal and imports real-time process chip; Described gps antenna is accepted satellite-signal, and it is by being connected with real-time process chip with the gps signal treating apparatus that provides time service to itself carrying out space orientation; Kymograph is connected with real-time process chip, and it surpasses the digital signal and the time service of definite value according to decision instruction record of this real-time process chip; The digital signal that described real-time process chip real-time analysis is imported, and make the judgement of earthquake and site liquefaction according to default threshold value, thus can be by the outside output of circuit for the command signal of utilizing.
The data acquiring frequency of the acceleration pick-up instrument in the vibration feature sensor of the present invention is 100Hz, and range is 2 times of acceleration of gravity; Described protecting sheathing is made by stainless steel or other weatherable materials.
Compare with known SI sensor, vibration feature sensor of the present invention inside is provided with A/D change-over circuit plate can carry out analog to digital conversion to the seismic signal of gathering, its real-time process chip can be analyzed identification to vibration signal simultaneously, get rid of the interference of other type vibration, therefore improved the precision of sensor greatly, prevent the erroneous judgement wrong report effectively, improved the reliability of reporting to the police.In addition, the present invention also is provided with gps system can be to itself carrying out space orientation and signal record time service, thereby record and output are superimposed with the seismic oscillation signal of space-time characteristic, therefore can be built into a seismic monitoring net by using a plurality of described vibration feature sensors, the day part vibration performance in each place, institute monitored area after the earthquake be carried out the record of comprehensive overall process.
Description of drawings:
Fig. 1 is the structural representation of known SI sensor.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is a fundamental diagram of the present invention.
Embodiment:
The invention will be further described below in conjunction with specific embodiments and the drawings.
At first see also Fig. 2 structural representation of the present invention.The diagram vibration feature sensor includes acceleration pick-up instrument 1, A/D change-over circuit plate 2, kymograph 3, real-time process chip 4, gps antenna 5, gps signal treating apparatus 6 and protecting sheathing 7.Described acceleration pick-up instrument 1 be connected to real-time process chip 4 after A/D change-over circuit plate 2 is connected; described gps antenna 5 is connected with real-time process chip 4 by gps signal treating apparatus 6; this real-time process chip 4 is connected with kymograph 3; and be connected with outside equipment or the device that receives command signal by circuit, above-mentioned all components and parts all are arranged within the protecting sheathing made from stainless steel or other weatherable materials 7.Above-mentioned weatherable materials is meant and is highly resistant to the material that atmospheric environment (moisture, acid rain etc.) corrodes, as contains the weathering steel of trace rare-earth element.
Described acceleration pick-up instrument 1 adopts real-time three-dimensional acceleration transducer, and its inside is furnished with self-care and filtering circuit, thereby has the signal condition function.The vibration acceleration in this 1 pair of measured place of acceleration pick-up instrument is monitored with the three-dimensional signals collecting and is obtained voltage signal.The data acquiring frequency of this acceleration pick-up instrument 1 is higher, must generally be taken as 100Hz greater than place 2 times of excellent frequency under geological process; Because the accekeration in place is generally not too large under the geological process, so the range of this acceleration pick-up instrument 1 is 2 times of acceleration of gravity, i.e. 2g.Described acceleration pick-up instrument 1 has enough precision and frequency range, so the data of its collection can reflect the actual vibration in place preferably.
Described A/D change-over circuit plate 2 is suitable with the measuring accuracy and the frequency range of acceleration pick-up instrument 1, and the voltage analog signal that its acceleration pick-up instrument 1 is gathered is converted to digital signal, to be fit to the real-time processing of real-time process chip 4.
Described gps antenna 5 is accepted satellite-signal and is flowed to gps signal treating apparatus 6, and this gps signal treating apparatus 6 can be determined the locus of itself, and at times the vibration signal of being gathered is carried out the high precision time service.
Setting in advance the threshold values of judging earthquake and site liquefaction in the process chip 4 in real time, described real-time process chip 4 can be analyzed and be handled behind the input signal that has received from A/D change-over circuit plate 2 and gps signal treating apparatus 6 in real time.This real-time process chip 4 at first compares vibration signal and pre-set threshold value, when if this signal surpasses threshold values, just vibration performances such as the amplitude of signal, cycle, duration, frequency spectrum are analyzed and differentiated, determine whether focus is the liquefaction situation in earthquake and this place, and according to judged result send earthquake and liquefaction command signal, this command signal is exported to the device that outside need utilizes this signal by circuit.Described real-time process chip 4 also when input signal surpasses certain value, is sent instruction to kymograph 3, and this kymograph 3 carries out record to the signal that overflows together with corresponding time service according to instruction.
Now the principle of work and the process of vibration feature sensor of the present invention are done a detailed explanation in conjunction with Fig. 3.Carry out at needs on the place of seismic monitoring vibration feature sensor of the present invention being set, the gps antenna 5 of this vibration feature sensor receives coherent signal and flows to gps signal treating apparatus 6 on satellite, this gps signal treating apparatus 6 is determined the locus of this vibration feature sensor according to satellite-signal, i.e. geographic position on the ground, simultaneously provide the very high time service of degree of accuracy by satellite-signal, gps signal treating apparatus 6 flows to real-time process chip 4 with above-mentioned spatial orientation information and time signal.When vibrations took place in this vibration feature sensor residing place, acceleration pick-up instrument 1 will be sensed vibration signal a (t) [annotate: t is the time, and a (t) is the time curve of seismic wave].So acceleration pick-up instrument 1 is with regard to immediately to vibration signal a (t) with enough precision and frequency (for example: 100Hz) carry out the real-time collection of three-dimensional, and by self-care and filtering system signal a (t) is nursed one's health, to obtain reflecting preferably the voltage signal of place actual vibration feature.The voltage signal of being gathered is transfused to A/D change-over circuit plate 2, and this A/D change-over circuit 2 is converted to digital signal to voltage signal and imports real-time process chip 4.The digital signal a (t) of 4 pairs of inputs of this real-time process chip carries out real-time analysis and processing, at first it compares the threshold value I that sets in advance in signal a (t) value and the real-time process chip 4, if continue 5 a in second (t)＜I, perhaps a (t) continued for 60 seconds and does not stop, and thought that then vibration finishes.If all a of this signal (t)＜I sets up, then signal is left in the basket and flows out handling procedure; If a (t)＞I, then process chip 4 compares the typical earthquake vibration performance with it just to amplitude, cycle, frequency spectrum, duration, the peak value number of this signal a (t) and analyze interval time and discern in real time, judges whether to be earthquake.If judged result is other vibrations except that earthquake, then ignore this signal and stop handling procedure, so just can get rid of other vibroseis and cause wrong report, raising early warning fiduciary level; If judged result for earthquake, is then outwards sent the earthquake alarm signal really, i.e. earthquake instruction.Meanwhile, 4 pairs of kymographs 3 of process chip send the record enabled instruction in real time, then kymograph 3 begins the seismic oscillation signal that is superimposed with space-time characteristic is carried out the record of overall process, and demonstrating the vibrational waveform curve, this record material provides data necessary for earthquake science research work and disaster rehabilitation work.After earthquake is determined, vibration feature sensor of the present invention is just further handled and is analyzed signal, and to the liquefaction feature of signal, as vibrate maximum displacement, acceleration peak value and cycle etc. and judge, to determine the soil liquefaction situation in the place of being surveyed, when its liquefaction index of signal indicating had reached threshold values, described vibration feature sensor just sent the site liquefaction alarm signal, i.e. liquefaction instruction.This liquefaction instruction exports miscellaneous equipment by circuit to the outside by real-time process chip 4 together with above-mentioned earthquake instruction, as closes burnt gas valve mechanism, cuts off electrical network electric brake mechanism etc. with as the triggering command signal, thereby starts the automatic treatment procedures of antidetonation mitigation.Meanwhile, the command signal of output can also be transferred to the antidetonation command centre in city by Ridio communications device, as commanding's instant analysis earthquake situations, and the foundation of commander's earthquake relief work work.
Because vibration feature sensor of the present invention has been authorized room and time on the oscillatory acceleration signal of gathering feature, therefore can be arranged in the vibration feature sensor of One's name is legion in the geographic area of being monitored, with be built into one should the zone the earthquake detection network, the live signal that it provides with space-time characteristic, not only take place comprehensive overall process to reflect earthquake situations in real time at that time in earthquake, earthquake relief work is had great directive significance, and its record material also provides the reference with high-reliability to the row wave effect (in the earthquake motion field on each position the travel time feature of seismic wave) of research earthquake motion after shake.
In sum, vibration feature sensor of the present invention have accuracy height, early warning reliable and The advantage of satellite fix time service can be used for monitoring and alarm earthquake, makes up regional monitoring network with full side Position monitor earthquake overall process.
Claims (3)
1, a kind of vibration feature sensor, comprise acceleration pick-up instrument (1), kymograph (3), real-time process chip (4) and protecting sheathing (7), it is characterized in that: it also includes A/D change-over circuit plate (2), gps antenna (5) and gps signal treating apparatus (6); Described acceleration pick-up instrument (1) itself has the signal condition function and the three-dimensional acquired signal is carried out in the place vibration, its be connected to real-time process chip (4) after A/D change-over circuit plate (2) is connected, the acceleration voltage conversion of signals that described A/D change-over circuit plate (2) is gathered acceleration pick-up instrument (1) is digital signal and imports real-time process chip (4); Described gps antenna (5) is accepted satellite-signal, and it is by being connected with real-time process chip (4) with the gps signal treating apparatus (6) that provides time service to itself carrying out space orientation; Kymograph (3) is connected with real-time process chip (4), and it surpasses the digital signal and the time service of threshold value according to decision instruction record of this real-time process chip (4); The digital signal that described real-time process chip (4) real-time analysis is imported, and make the judgement of earthquake and site liquefaction according to default threshold value, thus can be by the outside output of circuit for the command signal of utilizing.
2, vibration feature sensor according to claim 1 is characterized in that: the data acquiring frequency of described acceleration pick-up instrument (1) is 100Hz, and range is 2 times of acceleration of gravity.
3, vibration feature sensor according to claim 1 and 2 is characterized in that: described protecting sheathing (7) is made by stainless steel or other weatherable materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100257938A CN100504443C (en) | 2006-04-18 | 2006-04-18 | Vibration feature sensor |
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| CNB2006100257938A CN100504443C (en) | 2006-04-18 | 2006-04-18 | Vibration feature sensor |
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| CN1837857A true CN1837857A (en) | 2006-09-27 |
| CN100504443C CN100504443C (en) | 2009-06-24 |
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| CNB2006100257938A Expired - Fee Related CN100504443C (en) | 2006-04-18 | 2006-04-18 | Vibration feature sensor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231302B (en) * | 2007-01-22 | 2010-06-02 | 日立金属株式会社 | Dual acceleration sensor system |
| CN101995583A (en) * | 2010-09-02 | 2011-03-30 | 成都林海电子有限责任公司 | Wired network-based earthquake real-time monitoring method |
| CN101995582A (en) * | 2010-08-31 | 2011-03-30 | 成都林海电子有限责任公司 | Satellite communication-based earthquake real-time monitoring system |
| CN101995585A (en) * | 2010-08-31 | 2011-03-30 | 成都林海电子有限责任公司 | System for real-time monitoring safety of large-sized building based on satellite communication |
| CN102736101A (en) * | 2012-06-19 | 2012-10-17 | 成都高新减灾研究所 | Distributed type earthquake early warning information processing method and system |
| CN106297196A (en) * | 2016-09-23 | 2017-01-04 | 深圳摩登时代科技有限公司 | A kind of switch, smart host and earthquake early-warning system |
| CN108813782A (en) * | 2018-07-01 | 2018-11-16 | 钟冬妹 | It is a kind of to bury the assisted respiartion helmet of saving oneself |
| CN109752754A (en) * | 2018-12-19 | 2019-05-14 | 中国电子科技集团公司电子科学研究院 | For detecting the apparatus and system of earth shock signal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3209590A1 (en) * | 1982-03-17 | 1983-09-29 | Bodenseewerk Geosystem GmbH, 7770 Überlingen | GRAVIMETER |
| CN1095547C (en) * | 1996-03-08 | 2002-12-04 | 王宝昌 | Acceleration type high sensitivity electromechanical transducer series |
| US5962782A (en) * | 1997-06-11 | 1999-10-05 | The Broken Hill Proprietary Company Limited | Gravity gradiometer accelerometers |
| KR100380861B1 (en) * | 1998-02-17 | 2003-04-18 | 도시바 엔지니어링 가부시끼가이샤 | Geographical displacement sensing unit and monitoring apparatus using the same |
| CN1657974A (en) * | 2005-01-19 | 2005-08-24 | 天津大学 | Accelerat induction earthquake forcasting device |
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2006
- 2006-04-18 CN CNB2006100257938A patent/CN100504443C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231302B (en) * | 2007-01-22 | 2010-06-02 | 日立金属株式会社 | Dual acceleration sensor system |
| CN101995582A (en) * | 2010-08-31 | 2011-03-30 | 成都林海电子有限责任公司 | Satellite communication-based earthquake real-time monitoring system |
| CN101995585A (en) * | 2010-08-31 | 2011-03-30 | 成都林海电子有限责任公司 | System for real-time monitoring safety of large-sized building based on satellite communication |
| CN101995583A (en) * | 2010-09-02 | 2011-03-30 | 成都林海电子有限责任公司 | Wired network-based earthquake real-time monitoring method |
| CN101995583B (en) * | 2010-09-02 | 2013-02-13 | 成都林海电子有限责任公司 | Wired network-based earthquake real-time monitoring method |
| CN102736101A (en) * | 2012-06-19 | 2012-10-17 | 成都高新减灾研究所 | Distributed type earthquake early warning information processing method and system |
| CN102736101B (en) * | 2012-06-19 | 2016-06-22 | 成都高新减灾研究所 | A kind of Distributed seismic early warning information processing method and system |
| CN106297196A (en) * | 2016-09-23 | 2017-01-04 | 深圳摩登时代科技有限公司 | A kind of switch, smart host and earthquake early-warning system |
| CN108813782A (en) * | 2018-07-01 | 2018-11-16 | 钟冬妹 | It is a kind of to bury the assisted respiartion helmet of saving oneself |
| CN109752754A (en) * | 2018-12-19 | 2019-05-14 | 中国电子科技集团公司电子科学研究院 | For detecting the apparatus and system of earth shock signal |
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| CN100504443C (en) | 2009-06-24 |
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