CN107422383A - The epicentral location that its degree of accuracy is lifted by rejecting the observation station that peels off being triggered in observation station determines method - Google Patents
The epicentral location that its degree of accuracy is lifted by rejecting the observation station that peels off being triggered in observation station determines method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/24—Recording seismic data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/30—Analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/34—Displaying seismic recordings or visualisation of seismic data or attributes
- G01V1/345—Visualisation of seismic data or attributes, e.g. in 3D cubes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/10—Aspects of acoustic signal generation or detection
- G01V2210/12—Signal generation
- G01V2210/129—Source location
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/20—Trace signal pre-filtering to select, remove or transform specific events or signal components, i.e. trace-in/trace-out
- G01V2210/22—Time-domain filtering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/40—Transforming data representation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/70—Other details related to processing
- G01V2210/74—Visualisation of seismic data
Abstract
The present invention relates to a kind of earthquake early warning system,In order to solve to be identified as carrying out earthquake analysis in the state of seismic events because of the information errors that the other reasonses of non-seismic events are triggered,So as to erroneously determine that epicentral location and the problem of therefore send in the earthquake early warning system based on prior art of wrong early warning,Calculate first according to be triggered the observation time of observation station and seismic travel time that identified epicentral location calculates between difference value,Then standard deviation is gone out with the mean value calculation of above-mentioned difference value,Next epicentral location is redefined after the observation station information that peels off being distributed beyond the mean error for the observation station that is triggered is rejected in determining list from seismic events using the average value of above-mentioned difference and standard deviation,Epicentral location can be more accurately and reliably determined than existing system,And the wrong early warning incidence of earthquake early warning system is reduced whereby.
Description
Technical field
The present invention relates to it is a kind of can early detection go out the generation of earthquake and send the earthquake early warning system of early warning, especially
It is that a kind of epicentral location that its degree of accuracy is lifted by rejecting the observation station that peels off being triggered in observation station determines method, in order to
Solve because may be will be because of such as observation station when being differentiated using existing earthquake early warning system to seismic wave
It is identified as seismic events the other reasonses of the non-seismic events such as the noise on periphery or mankind's activity and the information errors that are triggered
In the state of carry out earthquake analysis and erroneously determine that epicentral location and therefore send the ground based on prior art of wrong early warning
The problem of shaking in early warning system, and provide a kind of by it is determined that rejecting first beyond the observation that is triggered during epicentral location
Epicentral location is redefined after (Outlier) observation station that peels off for the mean error distribution stood, can be than existing system more
Accurately and reliably determine epicentral location and prevent or reduce the wrong early warning incidence of earthquake early warning system whereby.
In addition, the present invention relates to a kind of observation station that peels off being triggered as described above by rejecting in observation station to lift it
The epicentral location of the degree of accuracy determines method, in order to solve in the earthquake early alert system based on prior art because that
The reason for and the problem of erroneously determine that epicentral location and therefore send wrong early warning, calculate first according to the observation station that is triggered
Observation time (Observed Time) and the seismic travel time (Travel that calculates of identified epicentral location
Time the difference value between), standard deviation is then gone out with the mean value calculation of above-mentioned difference value, is next utilizing above-mentioned difference
Average value and standard deviation from seismic events determine in list reject beyond be triggered observation station mean error distribution from
Epicentral location is redefined after group (Outlier) observation station information, shake can be more accurately and reliably determined than existing system
Middle position, and the wrong early warning incidence of earthquake early warning system is reduced whereby.
In addition, the present invention relates to a kind of earthquake early warning system, by using as described above from seismic events determination
Reject in list and redefined after (Outlier) observation station information that peels off of the mean error distribution for the observation station that is triggered
The epicentral location that its degree of accuracy is lifted by rejecting the observation station that peels off being triggered in observation station of epicentral location determines method, energy
It is enough more accurately and reliably to determine epicentral location than existing system, and wrong early warning incidence is significantly reduced whereby.
Background technology
At present, in order to grasp the generation of earthquake as early as possible and take appropriate measures rapidly so as to by the harm of earthquake will
It is extremely minimum, using earthquake early warning system.
That is, in general earthquake early warning system is by being configured at multiple seismographic observatorys of different location respectively to being seen
The various phases (phase) of the seismic waveform measured carry out Real time identification, and to being wherein presumed to the phase of seismic wave (P ripples)
Logical associations analysis is carried out, so as to which fast prediction goes out epicentral location and scale simultaneously on the basis of predicting that whether earthquake occurs
Send pre-warning system.
Therefore, the configuration mode being randomly distributed is usually taken in each seismographic observatory, but this will also result in noise rank
It is inconsistent and therefore cause larger difference of the different observation stations in terms of seismic wave identification certainty, especially will be because of such as
The other reasonses of the non-seismic events such as the noise on observation station periphery or mankind's activity and the information that is triggered are mistakenly identified as
When earthquake analysis is carried out in the state of seismic events, it is likely to result in and erroneously determines that epicentral location and therefore send wrong early warning
The problem of.
Therefore, it is badly in need of a kind of shake more accurately and securely recently in order to prevent the generation of wrong early warning as described above
Middle location determining method and earthquake early-warning system.
Wherein, as described above by detecting that seismic wave determines epicentral location and send the seismic survey side of early warning
The related prior art of method and earthquake early-warning system, as Ebrean Registered Patent publication the 10-1523355th is related to one kind can
The automatic detection device of seismic wave and its method that background noise influences effectively are excluded, is specifically that one kind can be received by earthquake
Ripple detects the analog signal that sensor detects and therefrom detects the ground that can effectively exclude background noise influence of seismic wave
The automatic detection device of seismic wave, including：Analogue-to-digital converters, above-mentioned analog signal is converted into data signal；Variable quantity calculates
Portion, the T/F regional change amount under above-mentioned each time is calculated from above-mentioned data signal, i.e. calculate first from right
Start to have the time zone variable quantity and frequency field variable quantity in the data interval of particular size between seasonable, then according to upper
State time zone variable quantity and said frequencies regional change gauge calculates T/F regional change amount；Critical value calculating part,
The critical value of each time is calculated using the instantaneous value of previous time and the T/F regional change gauge of previous time
(hereinafter referred to as instantaneous value), wherein, the critical value (hereinafter referred to as floor threshold) of initial time is using initial
The average value for changing the T/F regional change amount in the time is calculated, and according to the cycle being previously set (hereinafter referred to as
Reset sample cycle) periodically updated；And seismic wave detecting element, the T/F region for calculating each time become
Change amount, when the T/F regional change amount in the corresponding time continues to exceed said reference critical value and above-mentioned instantaneous
During value, it is determined as that P-wave has reached；Wherein, by periodically embodying the energy quantitative change of the background noise under different time
Change, be that floor threshold is set as variable state by the energy reference value in background noise section, so as to be carried out to seismic wave
The wrong recall rate because caused by the background noise of periphery is reduced during detection.
In addition, another prior art related as seismic detection method as described above and earthquake early-warning system, such as
Korean Patent Laid the 10-2014-0104606th is related to a kind of earthquake early warning parameter extraction and conveyer,
Including：Seismic detector, routinely monitor whether corresponding area occurs earthquake, generation is corresponding with relative earthquake when earthquake occurs
Earthquake information；Recorder, the earthquake information provided above-mentioned seismic detector record；Earthquake early warning parameter extraction
Portion, earthquake early warning parameter is extracted based on the earthquake information provided by above-mentioned recorder；And earthquake early stage is reported
Alert system, earthquake early stage is sent with parameter according to the earthquake early warning that above-mentioned earthquake early warning parameter extraction portion is provided
Early warning；Wherein, by extracting earthquake early warning parameter based on the earthquake information that is provided by seismic detector via recorder,
Earthquake early warning system is rapidly sent earthquake early warning information, the harm caused by earthquake can be down to most
It is low.
In addition, the another prior art related as seismic detection method as described above and earthquake early-warning system, such as
Ebrean Registered Patent publication the 10-1227443rd is related to a kind of earthquake early warning parameter generation system and method, including：
Multiple data connections, receive the real time data that seismograph is exported；Multiple viability analysis portions, by from above-mentioned number
The viability of the real time data received according to connecting portion is analyzed, and is decided whether to using above-mentioned real time data as earthquake early stage
Pre- police data are used；Data store, preserve the earthquake early warning data that above-mentioned viability analysis portion is exported；
Multiple ginseng art extraction units, it is pre- to go out earthquake early stage in the earthquake early warning extracting data received from above-mentioned data store
Police parameter；Parameter storage part, preserve the earthquake early warning parameter that above-mentioned ginseng art extraction unit is exported；And parameter transmission
Portion, package is carried out with parameter to the earthquake early warning received from above-mentioned parameter storage part and is sent to multiple data centers；
Wherein, analyzed by the viability of the real time data to being received from seismograph, overall earthquake early stage can be lifted
The reliability of early warning system, and with parameter and transmitted by generating earthquake early warning by each seismographic observatory, can
Simplify earthquake early warning system, so as to save computing device resource.
In addition, the another prior art related as seismic detection method as described above and earthquake early-warning system, such as
Ebrean Registered Patent publication the 10-1218175th is related to a kind of seismic monitoring system and the thing using the seismic monitoring system
Part validation verification method, including：At least two seismic monitoring instrument, is installed in supervision object object, and transmission includes
Determination data including peak ground acceleration (PGA)；And the quick early warning system of earthquake, receive and passed from above-mentioned seismic monitoring instrument
The determination data sent, the both sides determination data of identical data time is compared when receiving the determination data more than critical value
Compared with the relating value of both sides determination data being judged whether within feasible value, so as to be verified to the validity of seismic events；Its
In, by keeping the rapidity of event monitoring, the validity of event occurred can be verified immediately, so as to effectively prevent
The early warning of mistake.
As described above, at present had much by detect seismic wave determine epicentral location and send early warning earthquake visit
The prior art of survey method and earthquake early-warning system correlation is disclosed, but above-mentioned prior art but has as described below ask
Topic is present.
Specifically, can utilizing in the existing earthquake early warning system using earthquake automatic analysis technology
Seismic wave is differentiated automatically when being triggered for the algorithm of event, can not only be triggered by seismic wave, it is also possible to occurred because seeing
The situation that vibrations caused by the noise on survey station periphery or mankind's activity are erroneously identified as seismic events to be triggered.
Wherein, when being automatically analyzed as described above to seismic events, if using because non-seismic events its
Information that his factor is triggered carries out earthquake analysis, then it is determined that earthquake epicentral location when may result in gross mistake hair
It is raw.
By taking the case actually occurred as an example, on 01 06th, 2016 in the 3.0 of the generation of Gyeongsangbuk-Do Korea Jin Quan cities
In level earthquake, the noise because periphery had once also been monitored within several seconds before HAC (Shaanxi rivers) observation station monitors seismic wave
Caused by seismic events, and because at that time carry out actual analysis when used above-mentioned data, result in initial stage earthquake centre analysis when
Significant error.
As described above, in existing earthquake early-time analysis system, if occur when monitoring and analyzing seismic events because
The phenomenon being triggered for the event caused by the other factors of non-seismic wave, then it will cause the significant error of analysis result, and then
Successfully manage, may result in unexpected heavy because can not correctly grasp particular state when actually occurring earthquake and make
Big infringement.
Therefore as described above, in order to solve because the information that the other reasonses of non-seismic events are triggered is by mistakenly
Be identified as seismic events and therefore send problem in the earthquake early warning system based on prior art of wrong early warning, it is determined that
, it is necessary to which a kind of can be showed by what the event caused by preventing the other factors because of non-seismic wave was triggered during epicentral location
As, there is provided than existing system, more accurately and reliably epicentral location determines method and prevents wrong early warning from sending out using the above method
Raw earthquake early warning system, but do not occur meet above-mentioned required device or method so far.
Look-ahead technique document Prior Art
Patent document
1. Ebrean Registered Patent publication the 10-1523355th (2015.05.20.)
2. Korean Patent Laid the 10-2014-0104606th (2014.08.29.)
3. Ebrean Registered Patent publication the 10-1227443rd (2013.01.23.)
4. Ebrean Registered Patent publication the 10-1218175th (2012.12.27.)
Patent content
It is an object of the invention to solve above-mentioned existing issue and provide it is a kind of by reject be triggered in observation station from
Group observation station lifts the epicentral location of its degree of accuracy and determines method, in order to solve because by the other reasonses of non-seismic events and
It is identified as carrying out earthquake analysis in the state of seismic events, so as to erroneously determine that epicentral location simultaneously the information errors being triggered
Therefore the problem of sending in the earthquake early warning system based on prior art of wrong early warning, and provide it is a kind of by it is determined that
The weight after (Outlier) observation station that peels off of the mean error distribution for the observation station that is triggered is being rejected first during epicentral location
It is new to determine epicentral location, it can more accurately and reliably determine epicentral location than existing system.
In addition, carried another object of the present invention is to provide a kind of observation station that peels off being triggered by rejecting in observation station
Rise its degree of accuracy epicentral location determine method, in order to solve because that the reason for and erroneously determine that epicentral location simultaneously
Therefore problem in the earthquake early warning system based on prior art of wrong early warning is sent, is calculated first according to the sight that is triggered
The seismic travel time that the observation time (Observed Time) of survey station and identified epicentral location calculate
Difference value between (Travel Time), then goes out standard deviation with the mean value calculation of above-mentioned difference value, is next utilizing
The average value and standard deviation of above-mentioned difference determine to reject the mean error beyond the observation station that is triggered in list from seismic events
Epicentral location is redefined after (Outlier) observation station information that peels off of distribution, can be than existing system more accurately and reliably
Ground determines epicentral location, and reduces the wrong early warning incidence of earthquake early warning system whereby.
In addition, a further object of the present invention is to provide a kind of earthquake early warning system, by using as described above
Determine to reject (Outlier) observation station letter that peels off of the mean error distribution beyond the observation station that is triggered in list from seismic events
The earthquake centre that its degree of accuracy is lifted by rejecting the observation station that peels off being triggered in observation station of epicentral location is redefined after breath
Location determining method, epicentral location can be more accurately and reliably determined than existing system, and significantly reduce wrong early warning whereby
Incidence.
To achieve these goals, the present invention provides a kind of epicentral location and determines method, it is characterised in that：One kind is understanding
The problem of certainly causing mistake to occur because of noise is erroneously identified as into actual seismic wave and be triggered observation by rejecting
The epicentral location that (Outlier) observation station that peels off in standing lifts its degree of accuracy determines method, utilizes computer or special hard
Part, which performs, to be included：Earthquake information receiving step, receive earthquake information；Average and standard deviation calculation step, according to above-mentioned
The above-mentioned earthquake information that shake information receiving step receives, calculate the observation time (Observed of each observation station that is triggered
Time the average value (μ) and standard deviation (σ) of the difference) and between seismic travel time (Travel Time)；Peel off
Step is rejected in observation station, according to above-mentioned average and standard deviation calculation step result of calculation, distinguishes and rejects beyond setting in advance
(Outlier) observation station that peels off of fixed error range；And epicentral location redefines step, according in the above-mentioned observation that peels off
Stand and reject the above-mentioned earthquake information that step is rejected after the above-mentioned observation station that peels off and redefine epicentral location；Processing.
Wherein, above-mentioned earthquake information receiving step is characterised by：As above-mentioned earthquake information, to comprising epicentral location,
Received for the position for the observation station that is triggered for determining earthquake centre and the information of observation time (Observed Time).
In addition, above-mentioned average and standard deviation calculation and step are characterised by：Walked according to being received in above-mentioned earthquake information
Suddenly the above-mentioned earthquake information received, calculate each observation station that is triggered observation time (Observed Time) and from
The difference of seismic travel time (Travel Time) of the epicentral location untill each observation station that is triggered simultaneously obtains average value
(μ), then calculate standard deviation (σ) on the basis of the above-mentioned average value (μ) calculated.
In addition, the above-mentioned observation station that peels off is rejected step and is characterised by：According to above-mentioned average and standard deviation calculation step
Result of calculation, judge the above-mentioned observation time of each observation station that is triggered and difference between the above-mentioned propagation time with above-mentioned
Whether belong within the scope of the special tolerances being previously set when on the basis of average value (μ) and above-mentioned standard deviation (σ), then will be super
The observation station that is triggered for going out above-mentioned deviation range is determined as that above-mentioned peel off and is picked (Outlier) observation station from above-mentioned earthquake information
Remove.
In addition, the above-mentioned observation station that peels off is rejected step and is characterised by：As above-mentioned deviation range, by μ ± α σ (1≤α or
2≤α) in the range of observation station information be determined as effectively, and will exceed μ ± α σ scopes observation station be determined as the above-mentioned observation that peels off
Stand and rejected from above-mentioned earthquake information.
It is characterised by addition, above-mentioned epicentral location redefines step：Step is rejected according in the above-mentioned observation station that peels off
Reject the above-mentioned earthquake information after the above-mentioned observation station that peels off and redefine epicentral location.
In addition, above-mentioned epicentral location determines that method is characterised by, in addition to：Update step, according to be previously set when
Between gap periods perform processing procedure in above-mentioned each step repeatedly.
In addition, the present invention provides a kind of storaging medium being read out using computer, preserve in computer
Middle execution determines that method determines the application program of the correlation procedure of epicentral location using above-mentioned epicentral location.
In addition, the present invention provides a kind of earthquake analysis and early warning system, it is characterised in that：It is a kind of in order to solve because will be miscellaneous
The problem of sound is erroneously identified as actual seismic wave and causes mistake to occur and be triggered peeling off in observation station by rejecting
(Outlier) observation station lifts earthquake analysis and the early warning system of its degree of accuracy, including：Acceptance division, receive earthquake information；Judge
Portion, determine epicentral location and judge that it belongs to local earthquake event or teleseismic events；And early warning generating unit, according to above-mentioned judgement
The judged result in portion generates pre-warning signal when earthquake occurs；Wherein, above-mentioned judging part is to utilize above-mentioned epicentral location determination side
Method determines epicentral location.
As described above, the present invention, which provides a kind of observation station that peels off being triggered by rejecting in observation station, lifts its degree of accuracy
Epicentral location determine method, by calculate first according to be triggered observation station observation time (Observed Time) with
And the difference value between the seismic travel time (Travel Time) that identified epicentral location calculates, then with above-mentioned
The mean value calculation of difference value goes out standard deviation, is next utilizing the average value of above-mentioned difference and standard deviation from seismic events
Determine to reject in list after (Outlier) observation station information that peels off of the mean error distribution for the observation station that is triggered again
Epicentral location is determined, epicentral location can be more accurately and reliably determined than existing system, and reduce earthquake early warning whereby
The wrong early warning incidence of system, so as to solve because of the information errors that the other reasonses of non-seismic events are triggered
It is identified as carrying out earthquake analysis in the state of seismic events, so as to erroneously determine that epicentral location and therefore send wrong early warning
The problem of in earthquake early warning system based on prior art.
In addition, the present invention provides a kind of earthquake early warning system, by using as described above it is determined that epicentral location
When redefine earthquake centre position after (Outlier) observation station rejecting the peeling off for mean error distribution beyond the observation station that is triggered
The mode put can more accurately and reliably be determined than existing system epicentral location by reject be triggered in observation station from
The epicentral location that group observation station lifts its degree of accuracy determines method, can more accurately and reliably determine earthquake centre position than existing system
Put, and significantly reduce wrong early warning incidence whereby.
Brief description of the drawings
Fig. 1 is the observation knot on 01 06th, the 2016 3.0 grades of seismic events occurred in Gyeongsangbuk-Do Korea Jin Quan cities
Fruit schematic diagram.
Fig. 2 is that HAC (Shaanxi rivers) observation station when on 01 06th, 2016 seismic events as shown in Figure 1 occur is observed
Seismic wave content schematic diagram.
Fig. 3 is the bent when walking of each observation station that is triggered when on 01 06th, 2016 seismic events as shown in Figure 1 occur
Line schematic diagram.
Fig. 4 be applicable embodiments of the present invention by rejecting the observation station that peels off that is triggered in observation station, to lift its accurate
What the epicentral location of degree determined method is monolithically fabricated schematic diagram.
Fig. 5 is to lift it by rejecting the observation station that peels off being triggered in observation station according to applicable embodiments of the present invention
The epicentral location of the degree of accuracy determines that method rejects the process signal beyond (Outlier) observation station that peels off of special tolerances scope
Figure.
Fig. 6 is to be applicable being carried by rejecting the observation station that peels off being triggered in observation station for embodiments of the present invention by performing
Rise its degree of accuracy epicentral location determine method lifted its reliability earthquake analysis and early warning system in redefine earthquake centre position
The processing procedure outline flowchart put.
Fig. 7 is to be triggered when the quantity (Ns) of observation station is 9 according to applicable embodiments of the present invention by rejecting
The epicentral location that the observation station that peels off in observation station lifts its degree of accuracy determines that method performs the result schematic diagram of earthquake analysis.
Fig. 8 is to be triggered when the quantity (Ns) of observation station is 12 according to applicable embodiments of the present invention by rejecting
The epicentral location that the observation station that peels off in observation station lifts its degree of accuracy determines that method performs the result schematic diagram of earthquake analysis.
Fig. 9 is to be triggered when the quantity (Ns) of observation station is 14 according to applicable embodiments of the present invention by rejecting
The epicentral location that the observation station that peels off in observation station lifts its degree of accuracy determines that method performs the result schematic diagram of earthquake analysis.
Embodiment
Below, it will be lifted to the observation station that peels off being triggered by rejecting in observation station for being applicable the present invention with reference to accompanying drawing
The epicentral location of the degree of accuracy determines that the specific embodiment of method is described in detail.
It should be noted that content described below is only to implement the specific embodiment of the present invention, the present invention is simultaneously
It is not limited to content described below.
It is also to be noted that it is following embodiments of the invention are illustrated during, for be judged as with it is existing
There is the part that the content of technology is same or like, easily can be understood and implemented with the level of related practitioner, it will be omitted
Describe in detail.
That is, the present invention relates to a kind of observation station that peels off being triggered by rejecting in observation station as described below to lift its standard
The epicentral location of exactness determines method, in order to solve because the information errors that the other reasonses of non-seismic events are triggered
Ground is identified as carrying out earthquake analysis in the state of seismic events, so as to erroneously determine that epicentral location and therefore send wrong early warning
The earthquake early warning system based on prior art in the problem of, and provide a kind of by it is determined that first during epicentral location
Reject and redefine epicentral location after (Outlier) observation station that peels off of the mean error distribution for the observation station that is triggered,
Epicentral location can be more accurately and reliably determined than existing system.
In addition, the present invention relates to a kind of observation station that peels off being triggered by rejecting in observation station as described below to lift it
The epicentral location of the degree of accuracy determines method, in order to solve in the earthquake early alert system based on prior art because that
The reason for and the problem of erroneously determine that epicentral location and therefore send wrong early warning, calculate first according to the observation station that is triggered
Observation time (Observed Time) and the seismic travel time (Travel that calculates of identified epicentral location
Time the difference value between), standard deviation is then gone out with the mean value calculation of above-mentioned difference value, is next utilizing above-mentioned difference
Average value and standard deviation from seismic events determine in list reject beyond be triggered observation station mean error distribution from
Epicentral location is redefined after group (Outlier) observation station information, shake can be more accurately and reliably determined than existing system
Middle position, and the wrong early warning incidence of earthquake early warning system is reduced whereby.
In addition, the present invention relates to a kind of earthquake early warning system, determined by using as described below from seismic events
Reject in list and redefined after (Outlier) observation station information that peels off of the mean error distribution for the observation station that is triggered
The epicentral location that its degree of accuracy is lifted by rejecting the observation station that peels off being triggered in observation station of epicentral location determines method, energy
It is enough more accurately and reliably to determine epicentral location than existing system, and wrong early warning incidence is significantly reduced whereby.
Next, the observation station that peels off being triggered by rejecting in observation station for being applicable the present invention will be lifted with reference to accompanying drawing
The epicentral location of its degree of accuracy determines that the specific embodiment of method is described in detail.
First, Fig. 1 is the sight on 01 06th, the 2016 3.0 grades of seismic events occurred in Gyeongsangbuk-Do Korea Jin Quan cities
Survey result schematic diagram.
As shown in figure 1, on 01 06th, 2016 in 3.0 grades of seismic events that Gyeongsangbuk-Do Korea Jin Quan cities occur,
Before HAC (Shaanxi rivers) observation station monitors seismic wave once also monitored within several seconds because periphery noise caused by
Shake event.
Specifically, Fig. 2 is each observation being triggered when on 01 06th, 2016 seismic events as shown in Figure 1 occur
The seismic wave content schematic diagram for standing observed, Fig. 3 are the travel time curve schematic diagrames of corresponding observation station.
As shown in Fig. 2 when seismic events occur within 01 06th, 2016, reality is monitored in HAC (Shaanxi rivers) observation station
Several seconds before the seismic wave noises for once also having monitored such as to mark using orange rectangle frame.
I.e. as shown in figure 3, the observation time of HAC (Shaanxi rivers) observation station marked in figure 3 with orange rectangle frame, with
In Fig. 3 with the travel time curve of orange lines sign with the observation time of red other observation stations that are triggered for putting sign exist compared with
Big difference.
I.e. as described above, can go out in the prior art because of wrong identification the noise seismic wave of non-practically seismic wave and by its
The larger error of earthquake centre analysis at initial stage is caused for earthquake analysis, and therefore causes earthquake early-time analysis result is incorrect to ask
Topic.
Therefore, as described below, the present invention provides a kind of epicentral location more relatively reliable than existing method and determines method, in order to
Solve to cause earthquake initial analysis asking for mistake occur because of periphery noise is identified as into seismic wave when detecting seismic events
Topic, by calculating observation time (Observed Time) and identified earthquake centre position according to the observation station that is triggered first
The difference value between the seismic travel time (Travel Time) calculated is put, then in terms of the average value of above-mentioned difference value
Standard deviation is calculated, is next determined in the average value using above-mentioned calculated difference value and standard deviation from seismic events
Reject in list and redefined after (Outlier) observation station information that peels off of the mean error distribution for the observation station that is triggered
Epicentral location.
Fig. 4 be applicable embodiments of the present invention by rejecting the observation station that peels off that is triggered in observation station, to lift its accurate
What the epicentral location of degree determined method is monolithically fabricated schematic diagram.
As shown in figure 4, it is applicable being lifted by rejecting the observation station that peels off being triggered in observation station for embodiments of the present invention
The epicentral location of its degree of accuracy determines method, and being performed using computer or special hardware is included：Earthquake information receiving step
The external reception earthquake information such as S10, the seismographic observatory from such as earthquake early-warning system or installed in different regions；Average and standard
Deviation calculation procedure S20, according to the above-mentioned earthquake information received in above-mentioned earthquake information receiving step S10, calculate and touched
Send out observation station observation time (Observed Time) and seismic travel time (Travel Time) between difference
Average value (μ) and standard deviation (σ)；Peel off observation station rejecting step S30, according to above-mentioned average and standard deviation calculation step
S20 result of calculation, distinguish and reject beyond (Outlier) observation station that peels off for the error range being previously set；And earthquake centre
Position redefines step S40, and above-mentioned (Outlier) observation that peels off is rejected according to step S30 is rejected in the above-mentioned observation station that peels off
Above-mentioned earthquake information after standing redefines epicentral location；A series of processing procedures.
Wherein, be used as earthquake information in above-mentioned earthquake information receiving step S10, to comprising such as epicentral location, be used for
Determine that the position of the observation station that is triggered in earthquake centre and the information of observation time (Observed Time) etc. are received.
In addition, in above-mentioned average and standard deviation calculation and step S20, received according in earthquake information receiving step S10
The earthquake information arrived, calculate each observation station that is triggered observation time (Observed Time) and from epicentral location to
The difference of seismic travel time (Travel Time) untill each observation station that is triggered simultaneously obtains average value (μ), then with
Standard deviation (σ) is calculated on the basis of the average value (μ) calculated.
In addition, step S30 is rejected in the above-mentioned observation station that peels off, according to above-mentioned average and standard deviation calculation step S20
Result of calculation, judge the observation time of each observation station that is triggered and the difference between the propagation time with average value (μ) and upper
Whether belong to when stating on the basis of standard deviation (σ) within the scope of special tolerances, then by being triggered beyond corresponding deviation range
Observation station is judged to peeling off (Outlier) observation station and rejects the information of corresponding observation station from earthquake information.
Fig. 5 is to lift it by rejecting the observation station that peels off being triggered in observation station according to applicable embodiments of the present invention
The epicentral location of the degree of accuracy determines that method rejects the process signal beyond (Outlier) observation station that peels off of special tolerances scope
Figure.
, can be by the range of μ ± α σ (1≤α or 2≤α) i.e. as shown in figure 5, rejecting step S30 in the above-mentioned observation station that peels off
Observation station information is determined as effectively, and will be judged to peeling off beyond the observation station of μ ± α σ scopes and rejected from earthquake information.
In addition, redefining step S40 in above-mentioned epicentral location, picked according to step S30 is rejected in the above-mentioned observation station that peels off
Except the earthquake information after (Outlier) observation station that peels off redefines epicentral location.
Wherein, because related practitioner can be expressly understood that utilization as above institute by inquiring about the related document of prior art
The earthquake information stated determines the process relevant specific contents of epicentral location, so for the purpose of simplifying the description, in this manual for
The related practitioner of determination process of such as epicentral location can be by inquiring about the related document of prior art simply and specify that
The part of solution will description is omitted.
In addition, be applicable embodiments of the present invention by rejecting the observation station that peels off that is triggered in observation station, to lift its accurate
The epicentral location of degree determine method by periodically performed repeatedly according to specific time interval above-mentioned each step S10~
Processing procedure in S40, it can further lift the reliability of earthquake analysis result.
By mode as described above, being triggered by rejecting in observation station for applicable embodiments of the present invention can be realized
The observation station that peels off lift the epicentral location of its degree of accuracy and determine method, in addition, can be significantly reduced using the above method because
The problem of noise is erroneously identified as actual seismic wave and causes epicentral location and earthquake analysis to make a mistake, so as to real
The higher earthquake analysis of existing reliability and early warning system.
Specifically, the observation that peels off being triggered by rejecting in observation station of embodiments of the present invention is applicable by performing
Stand and lift the epicentral location of its degree of accuracy and determine that method lifts earthquake analysis and the early warning system of its reliability, including acceptance division,
Judging part and early warning generating unit, wherein, acceptance division is used to receive earthquake information, judging part be used for calculate observation time and
Redefine epicentral location after average value and standard deviation between propagation time and judge that it belongs to local earthquake thing whereby
Part or teleseismic events, warning information is not generated when judged result belongs to teleseismic events, and led to when belonging to local earthquake event
Cross early warning generating unit generation warning information.
Fig. 6 is to be applicable being carried by rejecting the observation station that peels off being triggered in observation station for embodiments of the present invention by performing
It is again true in the earthquake analysis of its reliability and the judging part of early warning system that the epicentral location of its degree of accuracy of liter determines that method is lifted
Determine the processing procedure outline flowchart of epicentral location.
Next, Fig. 7 to Fig. 9 will be combined to being touched by rejecting using applicable embodiments of the present invention as described above
The epicentral location that the observation station that peels off in hair observation station lifts its degree of accuracy determines that the result of method progress actual seismic analysis is entered
Row explanation.
Fig. 7 to Fig. 9 is respectively by rejecting the sight that peels off being triggered in observation station according to applicable embodiments of the present invention
The epicentral location that survey station lifts its degree of accuracy determines that method performs the result schematic diagram of earthquake analysis.
Wherein, Fig. 7 to Fig. 9 is to combine Fig. 1 to Fig. 3 at above-mentioned on 01 06th, 2016 in Gyeongsangbuk-Do Korea gold spring area
The result of the present invention is applicable in the seismic events observed result of generation, Fig. 7 is that the quantity (Ns) of observation station is the situation of 9, Fig. 8
The quantity (Ns) for being observation station is the situation of 12, and Fig. 9 is that the quantity (Ns) of observation station is the situation of 14, and by standard deviation
The range set of difference is shown to the result for removing the observation station that peels off respectively in the state of being the σ of μ ± 2.
As shown in fig. 7, when the quantity (Ns) of observation station is 9, it is (i.e. miscellaneous comprising the HAC observation stations for observing P ripples at first
Sound) including all 9 observation stations be all judged as effectively, so in the actual epicentral location using asterisk mark and using red
Certain difference is presented between the epicentral location calculated of color dot mark.But as shown in figure 8, when the quantity of observation station is
Observe that the HAC observation stations of P ripples are removed at 12 at first, so as to eliminate the interference of noise.
In addition as shown in figure 9, on the basis of noise jamming is excluded by rejecting HAC observation stations, the number in observation station
Amount is when increasing to 14, and standard deviation (STD) is greatly reduced to 0.16, therefore actual epicentral location and the earthquake centre position that calculates
Put and present almost consistent result.
By the above results it was determined that being applicable being triggered peeling off in observation station by rejecting for embodiments of the present invention
The epicentral location that observation station lifts its degree of accuracy determines method, can be provided in the quantity abundance of observation station point-devicely
Shake analysis result.
By mode as described above, the sight that peels off being triggered by rejecting in observation station for being applicable the present invention can be realized
The epicentral location that survey station lifts its degree of accuracy determines method.
In addition, the observation station that peels off that the rejecting as described above for being applicable the present invention is triggered in observation station lifts its degree of accuracy
Epicentral location determine method, by calculate first according to be triggered observation station observation time (Observed Time) with
And the difference value between the seismic travel time (Travel Time) that identified epicentral location calculates, then with above-mentioned
The mean value calculation of difference value goes out standard deviation, is next utilizing the average value of above-mentioned difference and standard deviation from seismic events
Determine to reject in list after (Outlier) observation station information that peels off of the mean error distribution for the observation station that is triggered again
Epicentral location is determined, epicentral location can be more accurately and reliably determined than existing system, and reduce earthquake early warning whereby
The wrong early warning incidence of system, so as to solve because of the information errors that the other reasonses of non-seismic events are triggered
It is identified as carrying out earthquake analysis in the state of seismic events, so as to erroneously determine that epicentral location and therefore send wrong early warning
The problem of in earthquake early warning system based on prior art.
In addition, the present invention provides a kind of earthquake early warning system, by using as described above it is determined that epicentral location
When redefine earthquake centre position after (Outlier) observation station rejecting the peeling off for mean error distribution beyond the observation station that is triggered
The mode put can more accurately and reliably be determined than existing system epicentral location by reject be triggered in observation station from
The epicentral location that group observation station lifts its degree of accuracy determines method, can more accurately and reliably determine earthquake centre position than existing system
Put, and significantly reduce wrong early warning incidence whereby.
Above, with reference to embodiments of the invention to being applicable the observation that peels off being triggered by rejecting in observation station of the invention
Stand and lift the epicentral location of its degree of accuracy and determine that method is described in detail, but the present invention is not limited in above-described embodiment
The content of record.The personnel of the general knowledge of the technical field of the invention can according to the needs of design aspect and other because
Element, various modifications, change, combination and replacement etc. are carried out to the present invention.
Claims (9)
1. a kind of epicentral location determines method, it is characterised in that：
It is a kind of in order to solve the problems, such as to cause mistake to occur because of noise is erroneously identified as into actual seismic wave and pass through
The epicentral location that (Outlier) observation station that peels off that rejecting is triggered in observation station lifts its degree of accuracy determines method, utilizes meter
Calculation machine or special hardware, which perform, to be included：
Earthquake information receiving step, receive earthquake information；
Average and standard deviation calculation step, according to the above-mentioned earthquake information received in above-mentioned earthquake information receiving step, meter
Calculate the observation time (Observed Time) and seismic travel time (Travel Time) of each observation station that is triggered
Between difference average value (μ) and standard deviation (σ)；
Peel off observation station rejecting step, according to above-mentioned average and standard deviation calculation step result of calculation, distinguishes and rejects super
Go out (Outlier) observation station that peels off for the error range being previously set；And
Epicentral location redefines step, after the above-mentioned observation station that peels off is rejected in the above-mentioned observation station rejecting step that peels off
Above-mentioned earthquake information redefines epicentral location；Processing.
2. epicentral location according to claim 1 determines method, it is characterised in that：
In above-mentioned earthquake information receiving step,
As above-mentioned earthquake information, position and observation to the observation station that is triggered comprising epicentral location, for determining earthquake centre
The time information of (Observed Time) is received.
3. epicentral location according to claim 2 determines method, it is characterised in that：
In above-mentioned average and standard deviation calculation step,
According to the above-mentioned earthquake information received in above-mentioned earthquake information receiving step, the sight of each observation station that is triggered is calculated
Survey time (Observed Time) and the seismic travel time from epicentral location untill each observation station that is triggered
The difference of (Travel Time) simultaneously obtains average value (μ),
Then standard deviation (σ) is calculated on the basis of the above-mentioned average value (μ) calculated.
4. epicentral location according to claim 3 determines method, it is characterised in that：
Step is rejected in the above-mentioned observation station that peels off,
According to above-mentioned average and standard deviation calculation step result of calculation, when judging the above-mentioned observation of each observation station that is triggered
Between difference between the above-mentioned propagation time whether belong to when on the basis of above-mentioned average value (μ) and above-mentioned standard deviation (σ)
Within the scope of the special tolerances being previously set,
Then above-mentioned (Outlier) observation station and from above-mentioned of peeling off will be determined as beyond the observation station that is triggered of above-mentioned deviation range
Rejected in earthquake information.
5. epicentral location according to claim 4 determines method, it is characterised in that：
Step is rejected in the above-mentioned observation station that peels off,
As above-mentioned deviation range, the observation station information in the range of μ ± α σ (1≤α or 2≤α) is determined as effectively, and will be exceeded
The observation station of μ ± α σ scopes is determined as that above-mentioned peel off and is rejected at observation station from above-mentioned earthquake information.
6. epicentral location according to claim 5 determines method, it is characterised in that：
Step is redefined in above-mentioned epicentral location,
Redefined according to the above-mentioned earthquake information after rejecting the above-mentioned observation station that peels off in the above-mentioned observation station rejecting step that peels off
Epicentral location.
7. epicentral location according to claim 6 determines method, it is characterised in that：
Above-mentioned epicentral location determines method, in addition to：
Step is updated, periodically performs the processing procedure in above-mentioned each step repeatedly according to the time interval being previously set.
8. a kind of storaging medium being read out using computer, preserve for performing in a computer using according to right
It is required that the epicentral location described in a certain item in 1 to claim 7 determines that method determines the correlation procedure of epicentral location
Application program.
9. a kind of earthquake analysis and early warning system, it is characterised in that：
It is a kind of in order to solve the problems, such as to cause mistake to occur because of noise is erroneously identified as into actual seismic wave and pass through
Earthquake analysis and early warning system that (Outlier) observation station that peels off being triggered in observation station lifts its degree of accuracy are rejected, including：
Acceptance division, receive earthquake information；
Judging part, determine epicentral location and judge that it belongs to local earthquake event or teleseismic events；And
Early warning generating unit, pre-warning signal is generated when earthquake occurs according to the judged result of above-mentioned judging part；
Wherein, above-mentioned judging part,
It is to determine that method determines earthquake centre position using the epicentral location described in a certain item in claim 1 to claim 7
Put.
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| KR102614869B1 (en) * | 2022-12-13 | 2023-12-20 | 한국지질자원연구원 | System and method of standardization of local event detection capability of seismological observatory |
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