CN103941281B - A kind of distribution ore deposit shake detection method and device - Google Patents
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Abstract
The present invention discloses a kind of distributed ore deposit shake detection method and device, is related to coal mine downhole safety monitoring field.Multichannel viberation detector distribution is installed on Devices to test or region；Server starts high-precise synchronization shock detection after providing enabling signal, and the signal of collection by Ethernet after device reception processing by being transmitted to cloud server；Server is supplied to user after carrying out data fusion analyzing and processing to magnanimity information.Viberation detector hardware includes shock detection converting unit, micro controller unit, man-machine interaction unit, storage unit, communication unit, time synchronization unit and server.Advantage：Can detection sensitivity is high, dynamic range is big vibration signal, Frequency Response is wide, and data lossless quickly transmits, and distributed environment lower networkization is synchronous high with seismic source location precision；Power system capacity is big, has stronger dilatation ability and relatively low dilatation cost.
Description
Technical field
It is specifically a kind of distributed ore deposit shake detection method and device the present invention relates to ore deposit shake detection technique field is related to.
Background technology
Microseismic has become one of hot technology of geophysics circle at present, be during reservoir fracturing most
Accurately, most timely, most effective monitoring means.In recent years, countries in the world put into substantial contribution, human and material resources one after another, actively
Carry out the application and research work of the technology, be widely used in all kinds of development of resources and production activities, such as coal mining, shale oil
Gas exploitation etc..With the application of geophysical development, particularly digital seismic monitoring technology, and to seismic source location side
Method is furtherd investigate, and microseismic application range constantly expands, and development prospect is wide.
The basic application process of microseismic is：By arranging shock detection in mining area underground or ground distributor cloth
Device, receives the small seismic events as produced by natural cause or production activity or induced, and passes through the generation to these events
Vibration data comprehensive analysis, production activity is monitored and instructed finally by these analysis results.As this monitors
Technology it is increasingly mature, microseismic monitoring system can instruct fracturing engineering in time, adjust fracturing parameter in due course；To pressure break
Scope, fracture azimuth and size are tracked positioning, and the effect of objective evaluation fracturing engineering, provides mining area production development
It is effective to instruct.
Mining area microseism detection technique is divided into three classes：The first kind is mine earthquake detection system, and feature is the big shake of monitoring
Level Surface Rupture Events, 500 meters or so of positioning accuracy, the main technology and equipment for using seismic industry；Second class is that distribution declines ground
Monitoring system is shaken, for monitoring small-sized ore deposit shake, feature is can to monitor small earthquake magnitude Surface Rupture Events, 50~100 meters or so of positioning accuracy,
It is generally adapted the vibration monitoring of exploiting field scale；Three classes are high-precision microseism detecting systems, for monitoring small earthquake magnitude impact ground
Pressure and rock breakdown, positioning accuracy reach within 10 meters.
There are many problems for existing various ore deposit shake monitoring methods：
1. most of or using the layout structure based on localization, compartmentalization, isolated node, can not utilize it is distributed greatly
Data fusion truly reflects earthquake conditions.
2. can not ensure the synchronism, uniformity, correlation of gathered data using distributed monitoring method on a small quantity, pass through
The method error of later data analysis is very big.
It is of high cost, autgmentability is poor, difficulty is big 3. existing monitoring network needs independent wiring.
The content of the invention
The shortcomings that in order to overcome the above-mentioned prior art, the present invention provide a kind of distributed ore deposit shake detection method and device, energy
The vibration signal that enough detection sensitivities are high, dynamic range is big, realizes that Frequency Response is wide, data lossless quickly transmits, distributed ring
Border lower networkization is synchronous high with seismic source location precision.
The present invention is realized with following technical solution：A kind of distribution ore deposit shake detection device, it is characterised in that：Including more
Road is distributed to be installed on Devices to test or the viberation detector in region to be measured；The viberation detector includes microcontroller
Unit, the shock detection converting unit being connected respectively with micro controller unit, man-machine interaction unit, storage unit, communication unit
With time synchronization unit, the communication unit and shock detection converting unit are connected with time synchronization unit respectively, described
Micro controller unit gives multichannel shock detection at the same time by communication unit Connection Service device, the server by communication unit
Device provides enabling signal；The time synchronization unit is to support the ethernet physical layer chip of IEEE1588 hardware timestampings
For core.
It is further：The shock detection converting unit is by acceleration shock sensor, frequency overlapped-resistable filter and mould
Number converter forms；Acceleration shock sensor collect reflection vibration information analog quantity after through frequency overlapped-resistable filter be sent into mould
Number converter, the transformed digital signal of analog-digital converter give micro controller unit.
The micro controller unit is stored by embedded microcontroller and the FIFO being connected with embedded microcontroller
Device forms.
The man-machine interaction unit uses liquid crystal touch display screen.
The storage unit uses nonvolatile memory.
The communication unit includes Ethernet interface, serial ports, download program interface and field-bus interface.
A kind of distribution ore deposit shake detection method, shakes detection device, specific detecting step is as follows using above-mentioned distributed ore deposit：
Step 1, multichannel viberation detector distribution is installed on Devices to test or region to be measured；
Step 2, server is sent after enabling signal by time synchronization unit in IEEE1588 network measures and control system
The control of precision interval clock synchronous protocol lower provide high precision timing detection control pulse；
Step 3, the signal collected is filtered, microcontroller is sent into after analog-to-digital conversion process by shock detection converting unit
Device unit；Micro controller unit adds frame head, postamble, timestamp, verification value part in data, be packaged into can be in ether
The message structure of transmission is netted, lossless data compression is also carried out after the completion of encapsulation；
Step 4, the information after encapsulation is sent to cloud service by microcontroller by the Ethernet interface in communication unit
Device；
Step 5, server obtains after carrying out data fusion analyzing and processing to the data after the processing of multichannel viberation detector
Hypocentral location and vibrations time are supplied to user.
It is further：Discrete data in collection signal obtains seismic wave using presently relevant detection method and reaches
The time difference of related detection device, thus the time difference can determine that near field region and far-field region；Further according to TDOA localization methods, by earthquake
Velocity of wave propagation, time difference, detection device coordinate integrated treatment calculate vibrations time and hypocentral location.
The beneficial effects of the invention are as follows：
1st, can detection sensitivity is high, dynamic range is big vibration signal, Frequency Response is wide.
2nd, distributed environment lower networkization is synchronous high with seismic source location precision.
3rd, power system capacity is big, has stronger dilatation ability and relatively low dilatation cost
4th, system can have stronger monitoring capability with expanded function.
Brief description of the drawings
Fig. 1 is present system structural principle block diagram；
Fig. 2 is viberation detector functional block diagram；
Fig. 3 is present system flow chart.
Embodiment
As depicted in figs. 1 and 2, a kind of distributed ore deposit shake detection device includes multi-path distributed being installed on Devices to test or treating
Survey the viberation detector in region；The viberation detector includes micro controller unit, connects respectively with micro controller unit
Shock detection converting unit, man-machine interaction unit, storage unit, communication unit and the time synchronization unit connect, the communication
Unit and shock detection converting unit are connected with time synchronization unit respectively, and the micro controller unit is connected by communication unit
Server is connect, the server provides enabling signal to multichannel viberation detector at the same time by communication unit.Software section
Including real time operating system, human-computer interaction interface, cloud database, data processing and communication etc..
The shock detection converting unit is by acceleration shock sensor, frequency overlapped-resistable filter and analog-digital converter group
Into；Acceleration shock sensor collect reflection vibration information analog quantity after through frequency overlapped-resistable filter be sent into analog-digital converter,
The transformed digital signal of analog-digital converter gives micro controller unit.In practice, the form of vibrations is varied, intensity size
Differ, frequency range span it is very big, therefore it is required that the sensitivity of acceleration shock sensor is high, response band will width.At the same time
Ask analog-to-digital converter resolution high, 24 high-speed AD converters are used in the present invention.
Micro controller unit is the core of whole system, the micro controller unit by embedded microcontroller and with
The FIFO memory composition of embedded microcontroller connection, quick response, the various things of processing under the control of real time operating system
Part, ensures the harmonious operation of all real-time tasks, controls various peripheral hardwares to work normally, and receives, handles, storing, forwarding vibrations
Data and various the followed agreements that communicate of operation., be in data after microcontroller receives the transformation result of analog-digital converter
The parts such as upper addition frame head, postamble, timestamp, check value, to be packaged into the message structure that can be transmitted in Ethernet.Encapsulate
Also lossless data compression is carried out to improve data transmission bauds into rear.It is unexpected in order to prevent to cause loss of data, system operation
Middle data need to be stored in FIFO and nonvolatile memory.System data is transmitted at the same time to network time synchronization by Ethernet
Aspect requirement is stringent, and microcontroller also needs to operation IEEE1588 protocol stacks and TCP/IP protocol stack.
The man-machine interaction unit uses liquid crystal touch display screen, and the liquid crystal touch display screen in man-machine interaction unit leads to
Cross the interactive interface display system operating status and control system operating parameter of close friend.Interface can use technology maturation, support
Cross-platform, development scheme is simple, the convenient application framework of transplanting.
The storage unit uses nonvolatile memory, empty for storing shock detection change data and user program
Between.Unexpected in order to prevent to cause loss of data, data need to be stored in FIFO and nonvolatile memory in system operation.
The communication unit includes Ethernet interface, serial ports, download program interface and field-bus interface, and to the time
Synchronization unit provides high-speed synchronous pulse.The Ethernet physics of IEEE1588 hardware timestampings is supported in ethernet interface circuit selection
Layer chip, realizes high-precision time synchronization, and provides high-speed synchronous pulse to time synchronization unit.Download program interface is used for
Download to microcontroller.Serial ports is used for system debug and other slow data transmissions.Field-bus interface expands for system
Exhibition.Time synchronization unit is made of high-speed counting circuit.The laggard row clock of system initialization is synchronous, is shaken in the course of work to multichannel
Dynamic detection converting unit provides synchronizing signal, ensures the real-time, uniformity, accuracy of data.Server turns to shock detection
Change unit and enabling signal is provided, in addition permanently store magnanimity vibration data, and analysis result is provided and is accessed for user.
The time synchronization unit is to support the ethernet physical layer chip of IEEE1588 hardware timestampings as core, to connect
The synchronizing signal of time service module is received, time service module is that the special module of precise synchronization clock is provided to time synchronization.Time synchronization
Unit is used to provide synchronizing signal to multichannel shock detection converting unit, ensures the real-time, uniformity, accuracy of data.Clothes
Business device gives shock detection converting unit to provide enabling signal, in addition permanently stores magnanimity vibration data, and provides analysis result confession
User accesses.
As shown in figure 3, shaking detection device using distributed ore deposit described above, specific detecting step is as follows：
Step 1, multichannel viberation detector distribution is installed on Devices to test or region to be measured；
Step 2, server is sent after enabling signal by time synchronization unit in IEEE1588 network measures and control system
The control of precision interval clock synchronous protocol lower provide high precision timing detection control pulse；
Step 3, the signal collected is filtered, microcontroller is sent into after analog-to-digital conversion process by shock detection converting unit
Device；Microcontroller adds frame head, postamble, timestamp, verification value part in data, to be packaged into what can be transmitted in Ethernet
Message structure, will also carry out lossless data compression after the completion of encapsulation；
Step 4, the information after encapsulation is sent to cloud service by microcontroller by the Ethernet interface in communication unit
Device；
Step 5, server obtains after carrying out data fusion analyzing and processing to the data after the processing of multichannel viberation detector
Hypocentral location and vibrations time are supplied to user.
In step 5, the time of same focus seismic wave arrival related detection device is calculated using related detecting method
Difference, hypocentral location can be calculated further according to TDOA algorithms.The analysis integrated related detecting method of data fusion and TDOA determine
Position technology, so that hypocentral location be calculated.Correlation detection technology is to utilize relative theory, is transported by auto-correlation and cross-correlation
Calculate, reach the technology that some physical quantitys are detected or removed with noise.Correlation detection technology is in acoustic measurement, weak signal
Widely applied in the field such as extraction and machinery vibration analysis.TDOA location technologies are to reach different monitorings using wireless signal
The time difference of point positions signal emitting-source.Mine's shock signal is all uncertain, but seismic wave reaches each detection dress
The time put is associated.
A1~A4 is viberation detector in Fig. 1, and hypocentral location and vibrations time are all uncertain.Once vibrations hair
Raw, detection device can collect vibration signal.Discrete data in collection signal obtains ground using related detecting method
Seismic wave reaches the time difference of related detection device, specific as follows：
By taking A1, A2 as an example, bringing formula 1 into can obtain：
If hypocentral location is obtained, it is necessary to calculate its coordinate, it is assumed that be (x, y, z).The installation site of detection device
It is to determine, known to its coordinate.Equation is drawn according to TDOA localization methods, it is specific as follows：
By taking A1, A2 as an example, bringing formula 2 into can obtain：
Seimic wave velocity v can be calculated by formula 2.Shake can be calculated by listing equation group further according to TDOA formula
Source position, as shown in equation group 3
Monitoring collection point is more, data volume is very big, its combination principle is with shaking according to priority when monitoring by detection device
Source distance is divided into near-field region and far-field region.Put earlier when getting and be combined calculating, these points are spatially from shake
The nearer point in source, positioning accuracy are higher；Later point is combined calculating when getting again, and carries out far and near combination several times
Calculate, for correcting the issuable error of combination.Additionally by the velocity structure correction of man-made explosion, wave detector uniformity school
After the related adjustment such as positive, positioning accuracy can be preferably improved under the premise of ensureing that instrument detection parameters are set reasonably.
The present invention proposes distributed topological structure, region to be measured rationally, the arrangement detection node of globalization.Collection
Data message is comprehensive, comprehensively reflects the shock conditions in region to be measured, using distinctive data anastomosing algorithm can accurately and
When, quickly position hypocentral location.The use of cloud server be more convenient access of the user to monitoring data and result, analysis and
Utilize.Based on function above, can in all kinds of Resource Development Process in time, accurately monitor various earthquake informations, instruct life
Work is produced, reduces casualties and property loss to greatest extent.
Claims (4)
- A kind of 1. distribution ore deposit shake detection method, it is characterised in that：Devices to test or area to be measured are installed on including multi-path distributed The viberation detector in domain；The viberation detector includes micro controller unit, is respectively connected with micro controller unit Shock detection converting unit, man-machine interaction unit, storage unit, communication unit and time synchronization unit, the communication unit It is connected respectively with time synchronization unit with shock detection converting unit, the micro controller unit is connected by communication unit and taken Business device, the server provide enabling signal to multichannel viberation detector at the same time by communication unit；The time is same Unit is walked to support the ethernet physical layer chip of IEEE1588 hardware timestampings as core；The shock detection converting unit It is made of acceleration shock sensor, frequency overlapped-resistable filter and analog-digital converter；Acceleration shock sensor collects reflection shake Analog-digital converter is sent into through frequency overlapped-resistable filter after the analog quantity of dynamic information, the transformed digital signal of analog-digital converter is given micro- Controller unit；The communication unit includes Ethernet interface, serial ports, download program interface and field-bus interface；Specifically Detecting step is as follows：Step 1, multichannel viberation detector distribution is installed on Devices to test or region to be measured；Step 2, server is sent after enabling signal by time synchronization unit in IEEE1588 network measures and the essence of control system Close clock synchronization protocol control is lower to provide high precision timing detection control pulse；Step 3, the signal collected is filtered, microcontroller is sent into after analog-to-digital conversion process by shock detection converting unit； Microcontroller adds frame head, postamble, timestamp, verification value part in data, to be packaged into the letter that can be transmitted in Ethernet Structure is ceased, lossless data compression is also carried out after the completion of encapsulation；Step 4, the information after encapsulation is sent to cloud server by microcontroller by the Ethernet interface in communication unit；Step 5, server obtains focus after carrying out data fusion analyzing and processing to the data after the processing of multichannel viberation detector Position and vibrations time are supplied to user, and the discrete data in the pulse signal collected is obtained using related detecting method The time difference of related detection device is reached to seismic wave, it is specific as follows：<mrow> <msub> <mi>t</mi> <mrow> <mi>a</mi> <mi>b</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>k</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mn>1</mn> <mi>N</mi> </mfrac> <munderover> <mo>&Sigma;</mo> <mrow> <mi>n</mi> <mo>=</mo> <mn>0</mn> </mrow> <mrow> <mi>N</mi> <mo>-</mo> <mn>1</mn> </mrow> </munderover> <mi>a</mi> <mrow> <mo>(</mo> <mi>k</mi> <mo>)</mo> </mrow> <mi>b</mi> <mrow> <mo>(</mo> <mi>n</mi> <mo>-</mo> <mi>k</mi> <mo>)</mo> </mrow> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>By taking A1, A2 as an example, bringing formula 1 into can obtain：<mrow> <msub> <mi>t</mi> <mn>12</mn> </msub> <mrow> <mo>(</mo> <mi>k</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mn>1</mn> <mi>N</mi> </mfrac> <munderover> <mo>&Sigma;</mo> <mrow> <mi>n</mi> <mo>=</mo> <mn>0</mn> </mrow> <mrow> <mi>N</mi> <mo>-</mo> <mn>1</mn> </mrow> </munderover> <msub> <mi>R</mi> <mn>1</mn> </msub> <mrow> <mo>(</mo> <mi>k</mi> <mo>)</mo> </mrow> <msub> <mi>R</mi> <mn>2</mn> </msub> <mrow> <mo>(</mo> <mi>n</mi> <mo>-</mo> <mi>k</mi> <mo>)</mo> </mrow> </mrow>It is specific as follows：Assuming that the coordinate of hypocentral location is (x, y, z), what the installation site of detection device was to determine, its coordinate it is known that according to TDOA localization methods draw equation, specific as follows：<mrow> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mi>a</mi> </msub> <mo>-</mo> <msub> <mi>x</mi> <mi>b</mi> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mi>a</mi> </msub> <mo>-</mo> <msub> <mi>y</mi> <mi>b</mi> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mi>a</mi> </msub> <mo>-</mo> <msub> <mi>z</mi> <mi>b</mi> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>=</mo> <msub> <mi>vt</mi> <mrow> <mi>a</mi> <mi>b</mi> </mrow> </msub> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </mrow>By taking A1, A2 as an example, bringing formula (2) into can obtain：<mrow> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>1</mn> </msub> <mo>-</mo> <msub> <mi>x</mi> <mn>2</mn> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>1</mn> </msub> <mo>-</mo> <msub> <mi>y</mi> <mn>2</mn> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>1</mn> </msub> <mo>-</mo> <msub> <mi>z</mi> <mn>2</mn> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>=</mo> <msub> <mi>vt</mi> <mn>12</mn> </msub> </mrow>Seimic wave velocity v can be calculated by formula 2, focus position can be calculated by listing equation group further according to TDOA formula Put, as shown in equation group 3：<mrow> <mtable> <mtr> <mtd> <mrow> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>1</mn> </msub> <mo>-</mo> <mi>x</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>1</mn> </msub> <mo>-</mo> <mi>y</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>1</mn> </msub> <mo>-</mo> <mi>z</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>-</mo> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>x</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>y</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>z</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>=</mo> <msub> <mi>vt</mi> <mn>12</mn> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>x</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>y</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>z</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>-</mo> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>3</mn> </msub> <mo>-</mo> <mi>x</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>3</mn> </msub> <mo>-</mo> <mi>y</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>3</mn> </msub> <mo>-</mo> <mi>z</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>=</mo> <msub> <mi>vt</mi> <mn>23</mn> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>3</mn> </msub> <mo>-</mo> <mi>x</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>3</mn> </msub> <mo>-</mo> <mi>y</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>3</mn> </msub> <mo>-</mo> <mi>z</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>-</mo> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mn>1</mn> </msub> <mo>-</mo> <mi>x</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>y</mi> <mn>1</mn> </msub> <mo>-</mo> <mi>y</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <msub> <mi>z</mi> <mn>1</mn> </msub> <mo>-</mo> <mi>z</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> <mo>=</mo> <msub> <mi>vt</mi> <mn>31</mn> </msub> </mrow> </mtd> </mtr> </mtable> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>3</mn> <mo>)</mo> </mrow> </mrow>Discrete data in collection signal obtains seismic wave using presently relevant detection method and reaches related detection device Time difference, thus the time difference can determine that near field region and far-field region；Further according to TDOA localization methods, by seismic wave propagation speed, when Between poor, detection device coordinate integrated treatment calculate vibrations time and hypocentral location；Detection device and hypocentral distance are divided into by near-field region and far-field region according to priority when monitoring, when getting earlier Near-field region point is combined calculating；Later far-field region point is combined calculating when getting again, and carries out far and near knot several times The calculating of conjunction, for correcting the issuable error of combination.
- A kind of 2. distributed ore deposit shake detection method according to claim 1, it is characterised in that：The micro controller unit It is made of embedded microcontroller and the FIFO memory being connected with embedded microcontroller.
- A kind of 3. distributed ore deposit shake detection method according to claim 1, it is characterised in that：The man-machine interaction unit Using liquid crystal touch display screen.
- A kind of 4. distributed ore deposit shake detection method according to claim 1, it is characterised in that：The storage unit uses Nonvolatile memory.
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