CN106019366A - Multipath optical fiber laser interaction earthquake alarm capable of discriminating earthquake magnitudes - Google Patents
Multipath optical fiber laser interaction earthquake alarm capable of discriminating earthquake magnitudes Download PDFInfo
- Publication number
- CN106019366A CN106019366A CN201610382684.5A CN201610382684A CN106019366A CN 106019366 A CN106019366 A CN 106019366A CN 201610382684 A CN201610382684 A CN 201610382684A CN 106019366 A CN106019366 A CN 106019366A
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- earthquake
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- optical fiber
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 47
- 230000003993 interaction Effects 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000003247 decreasing effect Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 5
- 230000034994 death Effects 0.000 description 3
- 231100000517 death Toxicity 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 208000004044 Hypesthesia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000034783 hypoesthesia Diseases 0.000 description 1
- 235000019616 numbness Nutrition 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/22—Transmitting seismic signals to recording or processing apparatus
- G01V1/226—Optoseismic systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
Abstract
The invention discloses a multipath optical fiber laser interaction earthquake alarm capable of discriminating earthquake magnitudes. The multipath optical fiber laser interaction earthquake alarm comprises an earthquake alarm body, which comprises a laser device, an optical fiber, a seismic wave shattering device, a signal receiving device, and an intelligent alarming system. The seismic wave shattering device comprises a separable light guide strip, which is one light guide strip, or can be divided into more than one light guide strips arranged parallely. The divided light guide strips have different hardness, strength, and thickness, and are separated according to seismic intensities or magnitudes. The laser or a signal is transmitted along the optical fiber, and the separable light guide strip is separated, when the earthquake occurs or is sensed. When the laser transmission is interrupted, the signal cannot be transmitted to the signal receiving device by the optical fiber. When the signal receiving device cannot receive the signal, or the signal transmission is interrupted, the intelligent alarming system is used to give alarms. The multipath optical fiber laser interaction earthquake alarm is advantageous in that the use is simple and practical, and the sensitivity is high; the earthquake alarms can be given in advance, and the earthquake magnitudes are determined.
Description
Technical field
The present invention relates to earthquake alarm technical field, particularly relating to a kind of multi-path, can to differentiate the optical-fiber laser of earthquake magnitude mutual
Dynamic earthquake Alarm.
Background technology
Earthquake is the destructive natural disaster that a kind of impersonal force can be resisted, and earthquake can cause huge in moment
Destructive power, earthquake happens occasionally from ancient times, and owing to manpower can not resist, can do is exactly to find in advance, gives warning in advance, removes in time
From, so earthquake prewarning device causes the great attention of the mankind, have ancient times seismograph can predict the generation of earthquake, earthquake it
Before also have many peculiar geographical phenomenons can the effectively Novel presentation of foreseeing earthquake, such as animal and the exception table of weather
Existing, but due to the development of industrialization and urbanization, this natural prediction method is the most inapplicable, nowadays all sets in many places
It is equipped with earthquake prewarning device, is the crystallization of modern science and technology, but effect is not very well, is not the most well positioned to meet people's
Demand.In China's natural disaster causes personnel death's ratio, earthquake disaster proportion is up to 54%, is that China causes personnel
Dead most natural disaster.Earthquake disaster not only damages national economy, and directly contributes the huge damage of people's life, property
Lose, in seismic wave devastatingly not yet arrives front several seconds or tens of second, earthquake information is announced the external world, personnel can be substantially reduced
Injures and deaths.Theoretical research shows, if pre-warning time is 3 seconds, casualties can be made than minimizing 14%；If 10 seconds, people
Member's injures and deaths are than minimizing 39%.Therefore, the side that timely, accurate and effective earthquake warning system always people work hard is set up
To.
At present, seismic survey and the many seismic survey centers in country's specialty of alarm device or scientific research institution use, due to
These machines are accurate, huge, expensive, and the sensor of these seismic survey devices to be placed into specific region and specific
The degree of depth, it is impossible to universal use in resident's daily life, when earthquake disaster occurs, resident can not receive alarm the very first time and carry
Showing, and keep away calamity in time, people are often caught unprepared, it is difficult to casualties and property loss are reduced to minimum level, existing
It is big that earthquake alarm system there is also floor space, and the forecast is inaccurate really, and cost is high, is unfavorable for the shortcoming promoted the use of.
China is divided into 12 degree earthquake intensity, the earthquake of different earthquake intensitys, and its impact and destruction are as follows: be less than
Three degree of people's numbnesss, only instrument just can recorded；Feel the dead of night people for three degree；People's meeting of four～five degree of sleeps
Waking up with a start, pendent lamp rocks；Six degree of vessel are toppled over, house slight damage；Seven～octave house destroyed, there is crack in ground；
Nine～ten degree of house collapses, ground failure is serious；11～12 degree of destructive destructions.
A kind of multi-path of the present invention can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, simple and practical, sensitive
Degree height, can send alarm, the progression predicted an earthquake in advance to earthquake, it is judged that the rank that earthquake occurs, it is to avoid or alleviate earthquake
The disaster caused, is reduced to minimum level low cost of manufacture by casualties and property loss, and the present invention is suitable for popularization and application, surely
Surely being hardly damaged, efficiency is high.
Summary of the invention
It is an object of the invention to the problem above overcoming prior art to exist, it is provided that a kind of multi-path can differentiate earthquake magnitude
Optical-fiber laser interaction earthquake Alarm, simple and practical, highly sensitive, earthquake can be sent in advance alarm, predict an earthquake
Progression, it is judged that the rank that earthquake occurs, it is to avoid or alleviate the disaster that earthquake causes, casualties and property loss are reduced to
Low degree low cost of manufacture, the present invention is suitable for popularization and application, is stably hardly damaged, and efficiency is high.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of multi-path can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, including earthquake Alarm body, describedly
Shake alarm body includes that laser instrument, optical fiber, seismic wave shatter device, signal receiver and intelligent alarm system, described laser
Shatter device, signal receiver and intelligent alarm system of device, seismic wave is linked in sequence successively by optical fiber, the length of described optical fiber
Degree is more than 5 kilometers, and described optical fiber is arranged in stainless steel pipes, and the described seismic wave device that shatters includes separable light-strip,
Described separable light-strip can be divided into 1 or more than 1, and laid out in parallel, and after described division each is separable to be led
The hardness of Rhizoma Dioscoreae (peeled), intensity, thickness are each different, the corresponding different Earthquake of each separable light-strip after described division
Level, each separable light guide plate after described division can separate according to earthquake intensity or dynamics, described laser or signal
Along spread fiber, described separable light guide plate produces separation, described Laser Transmission when running into earthquake or experiencing seismic wave
Interruption can not be along optical fiber transmission signal to signal receiver on, when described signal receiver does not receives signal or signal interruption,
Described intelligent alarms system alarm, then be judged as earthquake, when described signal receiver is able to receive that signal, for normal non-spot
Shake.
Further, the thickness of described each separable light-strip is that the trend of increasing or decreasing is increased or decreased
0.01mm, the maximum gauge value of described separable light-strip is 3CM.
Further, the hardness of described each separable light-strip is that the trend of increasing or decreasing is increased or decreased
HRC5, the hardness number of described separable light-strip is between HRC10-60.
Further, the corresponding different earthquake intensity of described each separable light guide plate or magnitude, described divide
It is corresponding relation from the thickness of light-strip and hardness with earthquake intensity or magnitude, the thickness of the most separable light-strip and hardness
The least, described earthquake intensity or magnitude are the least, otherwise, thickness and the hardness of separable light-strip are the biggest, and described earthquake is strong
Degree or magnitude are the biggest.
Further, the described seismic wave device quantity that shatters is provided with 1 or more than 1, and described seismic wave shatters device
With optical fiber in parallel or series.
Further, described intelligent alarm system includes siren and intelligent decision system, described intelligent decision system energy
Enough according to the signal of feedback in signal receiver, analyze the separate condition of each separable light guide plate, it is judged that and analyze earthquake
Earthquake magnitude.
Further, described intelligent alarms system can be connected with extraneous communication apparatus, described extraneous communication apparatus bag
Include mobile phone, electronics the Internet or the external world and be able to receive that the display screen of wireless signal.
Further, the quantity that described earthquake Alarm body is uniformly arranged in a standard area is 5-20, institute
Stating a standard area and refer to that area is 50 sq-kms, described earthquake alarming device body group can be connected into net each other.
The invention has the beneficial effects as follows:
1. simple in construction, practical；
The most highly sensitive, earthquake can be sent in advance alarm, the progression predicted an earthquake, it is judged that the rank that earthquake occurs；
3. avoid or alleviate the disaster that earthquake causes, casualties and property loss are reduced to minimum level low cost of manufacture；
4. the present invention is suitable for popularization and application.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing to describe in detail.This
Bright detailed description of the invention is shown in detail in by following example and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the optical-fiber laser interaction earthquake alarm arrangement signal that a kind of multi-path that the present invention relates to can differentiate earthquake magnitude
Figure；
Fig. 2 be a kind of multi-path that the present invention relates to can differentiate in the optical-fiber laser interaction earthquake Alarm of earthquake magnitude separable
Light-guiding strip structure schematic diagram.
Label declaration in figure: earthquake Alarm body 1, laser instrument 2, optical fiber 3, seismic wave shatters device 4, signal receiver
5, intelligent alarm system 6, separable light-strip 7, seismic wave 8.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Referring to figs. 1 through shown in Fig. 2, a kind of multi-path can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, including earthquake
Alarm body 1, described earthquake Alarm body 1 includes that laser instrument 2, optical fiber 3, seismic wave shatter device 4, signal receiver 5
With intelligent alarm system 6, shatter device 4, signal receiver 5 and intelligent alarm system 6 of described laser instrument 2, seismic wave passes through light
Fine 3 are linked in sequence successively, and the length of described optical fiber 3 is more than 5 kilometers, and described optical fiber 3 is arranged in stainless steel pipes, described
The seismic wave device 4 that shatters includes that separable light-strip 7, described separable light-strip 7 can be divided into 1 or more than 1, and also
Row arrangement, the hardness of each separable light-strip 7 after described division, intensity, thickness are each different, every after described division
One corresponding different magnitude of separable light-strip 7, each separable light guide plate 7 after described division can base area
Shake earthquake intensity or dynamics separate, described laser or signal are propagated along optical fiber 3, described separable light guide plate 7 run into earthquake or
Producing when experiencing seismic wave 8 and separate, described Laser Transmission interrupts to transmit signal to signal receiver 5 along optical fiber 3, institute
Stating signal receiver 5 when not receiving signal or signal interruption, described intelligent alarms system 6 is reported to the police, then be judged as earthquake, described
When signal receiver 5 is able to receive that signal, for normally there is not earthquake.
Further, the thickness of described each separable light-strip 7 is that the trend of increasing or decreasing is increased or decreased
0.01mm, the maximum gauge value of described separable light-strip 7 is 3CM.
Further, the hardness of described each separable light-strip 7 is that the trend of increasing or decreasing is increased or decreased
HRC5, the hardness number of described separable light-strip 7 is between HRC510-60.
Further, the corresponding different earthquake intensity of described each separable light guide plate 7 or magnitude, described divide
It is corresponding relation from the thickness of light-strip 7 and hardness with earthquake intensity or magnitude, the thickness of the most separable light-strip 7 and hard
Spending the least, described earthquake intensity or magnitude are the least, otherwise, thickness and the hardness of separable light-strip 7 are the biggest, described earthquake
Earthquake intensity or magnitude are the biggest.
Further, described seismic wave device 4 quantity that shatters is provided with 1 or more than 1, and described seismic wave shatters device
4 with optical fiber 3 in parallel or series.
Further, described intelligent alarm system 6 includes siren and intelligent decision system, described intelligent decision system energy
Enough according to the signal of feedback in signal receiver 5, analyze the separate condition of each separable light guide plate 7, it is judged that and analytically
The earthquake magnitude of shake.
Further, described intelligent alarms system 6 can be connected with extraneous communication apparatus, described extraneous communication apparatus bag
Include mobile phone, electronics the Internet or the external world and be able to receive that the display screen of wireless signal.
Further, the quantity that described earthquake Alarm body 1 is uniformly arranged in a standard area is 5-20,
One standard area refers to that area is 50 sq-kms, and described earthquake alarming device body 1 group can be connected into net each other
Specific embodiment:
User uses a kind of multi-path of the present invention can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, including earthquake alarm
Device body 1, earthquake Alarm body 1 includes that laser instrument 2, optical fiber 3, seismic wave shatter device 4, signal receiver 5 and intelligent newspapers
Alarm system 6, laser instrument 2, seismic wave shatter device 4, signal receiver 5 and intelligent alarm system 6 by optical fiber 3 the most in order
Connecting, the seismic wave device 4 that shatters includes that separable light-strip 7, separable light-strip 7 can be divided into 1 or more than 1, and
Laid out in parallel, the hardness of each separable light-strip 7 after division, intensity, thickness are each different, and each after division can
Separating the corresponding different magnitude of light-strip 7, each separable light guide plate 7 after division can be according to earthquake intensity or power
Degree separates, and described laser or signal are propagated along optical fiber 3, and described separable light guide plate 7 is running into earthquake or experiencing earthquake
Producing during ripple 8 and separate, described Laser Transmission interrupts to transmit signal to signal receiver 5 along optical fiber 3, and described signal receives
When device 5 does not receives signal or signal interruption, described intelligent alarms system 6 is reported to the police, then be judged as earthquake, described signal receiver
5 when being able to receive that signal, for normally there is not earthquake.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (8)
1. multi-path can differentiate an optical-fiber laser interaction earthquake Alarm for earthquake magnitude, including earthquake Alarm body (1), its
It is characterised by: described earthquake Alarm body (1) includes that shatter device (4), signal of laser instrument (2), optical fiber (3), seismic wave connects
Receiving device (5) and intelligent alarm system (6), described laser instrument (2), seismic wave shatter device (4), signal receiver (5) and intelligence
Warning system (6) is linked in sequence successively by optical fiber (3), and the length of described optical fiber (3) is more than 5 kilometers, described optical fiber (3)
Being arranged in stainless steel pipes, the described seismic wave device (4) that shatters includes separable light-strip (7), described separable light-strip
(7) 1 or more than 1, and laid out in parallel can be divided into, the hardness of each separable light-strip (7) after described division,
Intensity, thickness are each different, the corresponding different magnitude of each separable light-strip (7) after described division, described stroke
Each separable light guide plate (7) after Fen can separate according to earthquake intensity or dynamics, and laser launched by described laser instrument (2)
With signal, described laser or signal are along optical fiber (3) propagation, described separable light guide plate (7) is running into earthquake or is experiencing ground
Producing during seismic wave (8) and separate, described Laser Transmission is interrupted can not be described along optical fiber (3) transmission signal on signal receiver (5)
When signal receiver (5) does not receives signal or signal interruption, described intelligent alarms system (6) is reported to the police, then be judged as earthquake, institute
State signal receiver (5) when being able to receive that signal, for normally there is not earthquake.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levy and be: the thickness of described each separable light-strip (7) is that the trend of increasing or decreasing is increased or decreased 0.01mm, described
The maximum gauge value of separable light-strip (7) is 3CM.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levy and be: the hardness of described each separable light-strip (7) is that the trend of increasing or decreasing is increased or decreased HRC5, described can
Separate the hardness number of light-strip (7) between HRC510-60.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levy and be: the corresponding different earthquake intensity of described each separable light guide plate (7) or magnitude, described separable light-strip
(7) thickness and hardness are corresponding relation with earthquake intensity or magnitude, and the thickness of the most separable light-strip (7) and hardness are more
Little, described earthquake intensity or magnitude are the least, otherwise, thickness and the hardness of separable light-strip (7) are the biggest, and described earthquake is strong
Degree or magnitude are the biggest.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levying and be: described seismic wave device (4) quantity that shatters is provided with 1 or more than 1, described seismic wave shatters device (4) and light
Fibre (3) is in parallel or series.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levy and be: described intelligent alarm system (6) includes siren and intelligent decision system, and described intelligent decision system can be according to letter
In number receptor (5), the signal of feedback, analyzes the separate condition of each separable light guide plate (7), it is judged that and analyze earthquake
Earthquake magnitude.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levy and be: described intelligent alarms system (6) can be connected with extraneous communication apparatus, described external world communication apparatus include mobile phone,
Electronics the Internet or the external world are able to receive that the display screen of wireless signal.
A kind of multi-path the most according to claim 1 can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude, and it is special
Levy and be: the quantity that described earthquake Alarm body (1) is uniformly arranged in a standard area is 5-20, one
Standard area refers to that area is 50 sq-kms, and described earthquake alarming device body (1) group can be connected into net each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382684.5A CN106019366B (en) | 2016-06-01 | 2016-06-01 | A kind of multi-path can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382684.5A CN106019366B (en) | 2016-06-01 | 2016-06-01 | A kind of multi-path can differentiate the optical-fiber laser interaction earthquake Alarm of earthquake magnitude |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106019366A true CN106019366A (en) | 2016-10-12 |
| CN106019366B CN106019366B (en) | 2019-01-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539631A (en) * | 2009-04-30 | 2009-09-23 | 华中科技大学 | Earthquake monitoring device |
| CN101915935A (en) * | 2010-07-14 | 2010-12-15 | 中国科学院半导体研究所 | Fiber laser downhole geophone |
| US20120277995A1 (en) * | 2007-11-02 | 2012-11-01 | Schlumberger Technology Corporation | Systems and methods for distributed interferometric acoustic monitoring |
| CN105225425A (en) * | 2015-11-05 | 2016-01-06 | 泉州黄章智能科技有限公司 | A kind of optical fiber is used in the method and apparatus of earthquake alarm |
| CN205982661U (en) * | 2016-06-01 | 2017-02-22 | 漳浦县圆周率工业设计有限公司 | Interactive earthquake alarm of optical -fiber laser of earthquake magnitude can be distinguishd to multiple -pass |
-
2016
- 2016-06-01 CN CN201610382684.5A patent/CN106019366B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120277995A1 (en) * | 2007-11-02 | 2012-11-01 | Schlumberger Technology Corporation | Systems and methods for distributed interferometric acoustic monitoring |
| CN101539631A (en) * | 2009-04-30 | 2009-09-23 | 华中科技大学 | Earthquake monitoring device |
| CN101915935A (en) * | 2010-07-14 | 2010-12-15 | 中国科学院半导体研究所 | Fiber laser downhole geophone |
| CN105225425A (en) * | 2015-11-05 | 2016-01-06 | 泉州黄章智能科技有限公司 | A kind of optical fiber is used in the method and apparatus of earthquake alarm |
| CN205982661U (en) * | 2016-06-01 | 2017-02-22 | 漳浦县圆周率工业设计有限公司 | Interactive earthquake alarm of optical -fiber laser of earthquake magnitude can be distinguishd to multiple -pass |
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| Publication number | Publication date |
|---|---|
| CN106019366B (en) | 2019-01-18 |
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Effective date of registration: 20181130 Address after: Room 5671, Block A, Building 499 Kangyi Road, Pudong New District, Shanghai, 200120 Applicant after: Shanghai Huacheng Photoelectric Technology Co.,Ltd. Address before: 363200 Xintian international 209, sui'an Town, Zhangpu, Zhangzhou, Fujian Applicant before: ZHANGPU PI INDUSTRIAL DESIGN Co.,Ltd. |
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Denomination of invention: A Fiber Optic Laser Interactive Seismic Alarm with Multi channel Ability to Distinguish Magnitude Effective date of registration: 20230522 Granted publication date: 20190118 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Pudong branch Pledgor: Shanghai Huacheng Photoelectric Technology Co.,Ltd. Registration number: Y2023310000205 |
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Granted publication date: 20190118 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Pudong branch Pledgor: Shanghai Huacheng Photoelectric Technology Co.,Ltd. Registration number: Y2023310000205 |
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Denomination of invention: A Fiber Optic Laser Interactive Seismic Alarm with Multi channel Ability to Resolve Earthquake Magnitude Granted publication date: 20190118 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Pudong branch Pledgor: Shanghai Huacheng Photoelectric Technology Co.,Ltd. Registration number: Y2024310000216 |