CN107356666A - A kind of extraction method and system of halmeic deposit parameters,acoustic - Google Patents
A kind of extraction method and system of halmeic deposit parameters,acoustic Download PDFInfo
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- CN107356666A CN107356666A CN201710560234.5A CN201710560234A CN107356666A CN 107356666 A CN107356666 A CN 107356666A CN 201710560234 A CN201710560234 A CN 201710560234A CN 107356666 A CN107356666 A CN 107356666A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/011—Velocity or travel time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/015—Attenuation, scattering
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a kind of extraction method and system of halmeic deposit parameters,acoustic, the system includes remote control terminal, satellite communication device, underwater acoustic communication device, acoustic signal collecting unit, acoustic signal R-T unit.Remote control terminal includes computer and control software；Acoustic signal collecting unit includes main control unit, high-tension circuit plate, signal and magnification circuit plate occurs；Main control unit includes storage control module and data processing module；Acoustic signal R-T unit includes transmitting transducer and receive transducer；Data processing module in the present invention automatically extracts SVEL and acoustic attenuation coefficient in deposit；SVEL and acoustic attenuation coefficient are transferred to satellite communication device by underwater acoustic communication device；SVEL and acoustic attenuation coefficient are transferred to remote control terminal by satellite communication device.The present invention solves problem existing for mass data transmission in halmeic deposit acoustic measurement, not only improves operating efficiency, also improves the accuracy of data.
Description
Technical field
The present invention relates to a kind of extraction method and system of halmeic deposit parameters,acoustic, belong to sea-bottom deposit acoustics
Technical field.
Background technology
The sound physical properties property (mainly including SVEL and acoustic attenuation coefficient) of bottom sediment is understood to seabed mineral
The fields such as development of resources, ocean engineering construction, military oceanography and Marine Geology are extremely important.
Measuring the main method of seabed sediment acoustics physical property includes two kinds, first, using traditional submarine sampling side
Method, and aboard ship laboratory carries out deck test using ultrasonic equipment, and lab measurements are then adapted to live survey
Value.This method has shortcomings, and first, deep earth sampling process is time-consuming, laborious, and is influenceed by sea situation and substrate condition
Greatly, it is not easy to obtain complete, continuous sediment sample, secondly, sample loses the environmental conditions such as original temperature, pressure, no
Reduce measurement accuracy with can avoiding.Another kind is acoustic in-situ measurement means emerging in recent years, and the operation principle of this method is
Acoustic measurement sensor is inserted in bottom sediment, the acoustic signal through deposit is directly obtained by Acquisition Instrument, is extracted
Signal first arrival time simultaneously calculates SVEL and acoustic attenuation coefficient, avoids shortcoming present in traditional measurement method.
At present, existing acoustic in-situ measuring apparatus uses the collection and storage of two ways control data.One kind is to adopt
Collection instrument is placed in deck in ship structure, and measurement sensor is placed in bottom sediment, and real-time communication is realized by transmission cable, this quasi-instrument
It is not suitable for deep-sea acoustic measurement, because the cable of the bigger needs of the depth of water is longer, so as to cause signal transmission attenuation and cable safety
Hidden danger；Another kind is that Acquisition Instrument and transducer are placed in seabed, is believed by the automatic stored record acoustics of program built in Acquisition Instrument
Number, artificial extraction data are handled after being then recovered to deck using equipment.Above-mentioned two classes method is connected because needing using cable
Connect, or need to be repeatedly lifted up instrument and equipment, time-consuming, laborious, investment height be present, it is a series of scarce to be also easy to disturbance deposit etc.
Point, short term detection is only applicable to, thus, this two kind equipment can not realize the purpose of long-term in-situ monitoring.
Can solve above-mentioned problem using wireless underwater acoustic communication mode, but because acoustic measurement data volume is big, and led to by the underwater sound
The limitation of bandwidth is interrogated, data transfer can not be completed in the short time, directly affects monitoring process.In addition, calculating sound physical properties
During matter, because the first break picking time is easily influenceed by artificial erroneous judgement factor, measurement accuracy is caused to reduce.
The content of the invention
The technical problems to be solved by the invention are to be directed to the deficiencies in the prior art, and provide a kind of absmal deposit
The extraction method and system of thing parameters,acoustic, using untethered connected mode, solve big in halmeic deposit acoustic measurement
Problem existing for measuring data transfer, improves the accuracy of data, also improves operating efficiency.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of extraction method of halmeic deposit parameters,acoustic, comprises the following steps：
(1) start the computer of remote control terminal, adopted by the control software setting in remote control terminal computer
Collect parameter, described parameter is included between sampling length, sample frequency, emitting voltage, filtering parameter, channel parameters, acquisition time
Every；
(2) acquisition parameter is sent to satellite communication device by the control software in remote control terminal computer；
(3) acquisition parameter is sent to underwater acoustic communication device by satellite communication device；
(4) acquisition parameter is sent by the storage control module of underwater acoustic communication device main control unit into acoustics collecting unit
So as to start main control unit, the storage control module in main control unit starts the high-tension pulse that high-tension circuit plate produces 30kHz frequencies
Signal is rushed, after magnification circuit plate amplification high-voltage pulse signal occurs for signal, to the acoustic emission transducing of acoustic signal R-T unit
Device sends high-voltage pulse signal, and driving transmitting transducer produces acoustic vibration；
(5) acoustic vibration caused by transmitting transducer is propagated into bottom sediment, and receive transducer is received through deposition
The vibration signal of thing and the storage control module that vibration signal is sent to main control unit in a manner of electric signal, and preserve original
Data；
(6) after storage control module receives data, the data processing module in main control unit is called, two is automatically extracted and changes
The SVEL and/or acoustic attenuation coefficient of deposit between energy device, and the SVEL of extraction and acoustic attenuation coefficient are sent to
Underwater acoustic communication device；
(7) satellite communication that the SVEL of extraction and acoustic attenuation coefficient are sent to sea by underwater acoustic communication device fills
Put；
(8) SVEL of extraction and acoustic attenuation coefficient are sent to indoor remote control terminal and calculated by satellite communication device
Control software in machine, is then depicted as figure by result.
In above-mentioned technical proposal, in step (6), after the storage control module of main control unit receives data, master is called
The data processing module in unit is controlled, wherein：SVEL automatically extracts module and calculates the first arrival time difference and SVEL automatically；
First arrival time difference computational methods use the cross correlation algorithm of two receive transducer signals, and calculation formula is：
In formula, x (t), y (t) are the acoustic signals that receive of two transducers, Rxy(τ) is coefficient correlation, and τ is two signals
The time difference (unit：s)；
The calculation formula of SVEL is：
V=L/ τ
In formula, v is SVEL (unit：M/s), distance (units of the L between two transducers：m).
In above-mentioned technical proposal, in step (6), after the storage control module of main control unit receives data, master control is called
Data processing module in unit, wherein：Acoustic attenuation coefficient automatically extracts module and calculates power spectrum and acoustic attenuation coefficient automatically；
The algorithm of power spectrum use discrete data Fourier transform, the formula used for：
In formula, x (n) is N number of observation data sequence of acoustic signal, directly calculates x (n) DFT, obtains x
(k), then take square of its amplitude again, and divided by N, as sequence x (n) power spectrum；
The power spectrum A that the acoustic signals received according to two transducers calculate1And A (k)2(k) data sequence, by
Acoustic attenuation coefficient computing module searches for maximum energy value A automatically1Max and A2Max, then using formula α=- 20lg (A1max/
A2max)/H, calculates acoustic attenuation coefficient.
The present invention also provides a kind of acoustic in-situ measuring system automatically extracted for halmeic deposit parameters,acoustic, including
Remote control terminal, satellite communication device, underwater acoustic communication device, acoustic signal collecting unit, the acoustic signal being sequentially connected are received
Transmitting apparatus：
Described remote control terminal passes through nothing positioned at interior, including computer and control software with satellite communication device
Line satellite communication is connected, and sends acquisition parameter to satellite communication device, or receive the sound sent from satellite communication device
Wave velocity and acoustic attenuation coefficient；
Described satellite communication device is located in jellyfish, passes through wireless satellite communications mode phase with remote control terminal
Connection, satellite communication device receives the acquisition parameter that remote control terminal is sent, or will receive SVEL and acoustic attenuation system
Number is sent to remote control terminal；
Described underwater acoustic communication device is located in the pressure chamber in seabed, passes through underwater sound communication mode phase with satellite communication device
Connection, underwater acoustic communication device receives the acquisition parameter that satellite communication device is sent, or will receive SVEL and acoustic attenuation system
Number is sent to satellite communication device；
Described acoustic signal collecting unit is located in the pressure chamber in seabed, and acoustic signal collecting unit passes through watertight cable
It is connected with underwater acoustic communication device；Magnification circuit plate occurs including main control unit, high-tension circuit plate and signal；Described master control list
Member includes storage control module and data processing module；Main control unit have control acquisition parameter, it is automatic calculate SVEL and
Acoustic attenuation coefficient and store function, high-tension circuit plate are used to produce high-voltage pulse signal, and signal occurs magnification circuit plate and is used for
Amplify high-voltage pulse signal；Storage control module be used to receiving the acquisition parameter that control software in remote control terminal sends and/
Or preserve by receive transducer send back Lai acoustic raw data；
In described acoustic signal R-T unit insertion bottom sediment, acoustic signal R-T unit by watertight cable with
Storage control module in pressure chamber in acoustic signal collecting unit is connected；Including transmitting transducer and receive transducer, divide
Vibration signal Yong Yu not be launched into bottom sediment and receive the acoustic signal through deposit.
In above-mentioned technical proposal, described data processing module, including SVEL automatically extract module and acoustic attenuation system
Number automatically extracts module, and two modules are run independently of one another；Wherein：SVEL automatically extracts module and changed for calculating described two
SVEL that can be between device in deposit, acoustic attenuation coefficient are automatically extracted between module is used to calculating two transducer and deposited
Acoustic attenuation coefficient in thing；
Further, described SVEL automatically extracts module, including the first arrival time difference automatic computing module harmony velocity of wave
Automatic computing module is spent, is series relationship between two modules, first calculates the first arrival time difference in calculating process, then calculate SVEL；
Acoustic attenuation coefficient automatically extracts module, including the automatic computing module of power spectrum and the automatic computing module of acoustic attenuation coefficient, two modules
Between be series relationship, first calculate power spectrum in calculating process, then calculate acoustic attenuation coefficient.
In above-mentioned technical proposal, described acoustic signal R-T unit, including transmitting transducer and receive transducer, acoustics
Signal gathering unit sends high-voltage pulse signal so as to drive transmitting transducer to produce acoustic vibration to transmitting transducer, and transmitting is changed
Energy device produces acoustic vibration so as to launch high-frequency impulse vibration signal into bottom sediment, and bottom sediment receives high frequency arteries and veins
Vibration signal is produced after rushing vibration signal, receive transducer receives the vibration signal through deposit and by vibration signal with telecommunications
Number mode be sent to the storage control module of main control unit；
Further, the two of the described acoustic signal R-T unit transmitting transducer that has been enclosed inside and receive transducer
Root stainless steel acoustic signal receives and dispatches feeler lever unit, be equipped with every acoustic signal transmitting-receiving feeler lever unit a transmitting transducer and
Three receive transducers；
Further, wherein an acoustic signal transmitting-receiving feeler lever unit is from top to bottom distributed with transmitting transducer T1, connect
Transducer R4, receive transducer R5, receive transducer R6 are received, another acoustic signal transmitting-receiving feeler lever unit is from top to bottom distributed with
Receive transducer R1, receive transducer R2, receive transducer R3, transmitting transducer T2.
In above-mentioned technical proposal, the acoustic in-situ measuring system that is automatically extracted for halmeic deposit parameters,acoustic, its work
It is the control software setting acquisition parameter of remote control terminal, to be sent by satellite communication device, underwater acoustic communication device as flow
To acoustic signal collecting unit, so as to start the main control unit in acoustics signal gathering unit, the storage control in main control unit
Module starts high-tension circuit plate, magnification circuit plate occurs for signal and sends high-voltage pulse signal driving acoustic signal R-T unit,
The acoustic signal come is sent back so as to which the storage control module in main control unit receives acoustic signal R-T unit, and is sent to
Acoustic signal is sent to satellite communication device by underwater acoustic communication device, underwater acoustic communication device, so as to be sent out by wireless satellite communications
It is sent to remote control terminal.
The advantages of technical solution of the present invention, is：
1. the calculating process of SVEL and acoustic attenuation coefficient is solidificated in acoustic in-situ and surveyed by the present invention by Programming
In amount system, test result can be directly given during experiment.
2. the present invention directly calculates SVEL and acoustic attenuation coefficient using mathematical modeling, when avoiding artificial first break picking
Between caused error, it is time saving and energy saving, and accuracy is high.
3. the acoustic signals that the present invention is obtained using acoustic in-situ measurement apparatus, directly calculate the sound wave speed of bottom sediment
Degree and acoustic attenuation coefficient, compared with the original acoustic wave data of magnanimity, greatly reduce data traffic volume, measurement result can pass through water
Acoustic communication and satellite communication are sent to indoor remote terminal in real time, reduce the traffic load of communication device.
4. the present invention without reclaimer or by the mode for having cable to connect due to that can obtain measurement data, very suitable
Together in the long term monitoring of halmeic deposit sound physical properties property.
5. the present invention uses 2 transmitting transducers and 6 receive transducers, different transmittings can be combined, receive mode, can
Realize the measurement of different depth sediment acoustics speed and acoustic attenuation coefficient.
Brief description of the drawings
Fig. 1：The overall structure diagram of the automatic extracting system of halmeic deposit parameters,acoustic of the present invention；
Fig. 2：The acoustic signal R-T unit structural representation of the automatic extracting system of halmeic deposit parameters,acoustic of the present invention
Figure；
Fig. 3：The transmitting transducer of the automatic extracting system of halmeic deposit parameters,acoustic of the present invention, receive transducer distribution
Schematic diagram；
Fig. 4：Between receive transducer R1 and R2, and the SVEL figure between receive transducer R2 and R3 in deposit
Shape (■ is that T1 launches R1-R2 receptions, and is that T1 transmittings R2-R3 is received)；
Fig. 5：Between receive transducer R1 and R2, and the acoustic attenuation coefficient between receive transducer R2 and R3 in deposit
Figure (■ is that T1 launches R1-R2 receptions, and * is that T1 transmittings R2-R3 is received)；
Wherein：1 is remote control terminal, and 2 be satellite communication device, and 3 be underwater acoustic communication device, and 4 be that acoustic signal gathers
Unit (41 be main control unit, 411 be storage control module, 412 be data processing module, 4121 be that SVEL automatically extracts
Module, 4122 be acoustic attenuation coefficient automatically extract module, 42 be high-tension circuit plate, 43 be signal occur magnification circuit plate), 5 are
Acoustic signal R-T unit (51 be transmitting transducer, 52 be receive transducer, 511 be transmitting transducer T1,512 be that transmitting is changed
Can device T2,521 be receive transducer R1,522 be receive transducer R2,523 be receive transducer R3,524 be receive transducer
R4,525 be receive transducer R5,526 be receive transducer R6).
Embodiment
The embodiment of technical solution of the present invention is described in detail below, but the present invention is not limited in following description
Hold：
The present invention provides a kind of acoustic in-situ measuring system automatically extracted for halmeic deposit parameters,acoustic, as Fig. 1-
Shown in 3：Including remote control terminal 1, satellite communication device 2, underwater acoustic communication device 3, acoustic signal collecting unit 4, acoustics letter
Number R-T unit 5, wherein：
Remote control terminal passes through wireless satellite communications and satellite communication positioned at interior, including computer and control software
Device connects, and sends acquisition parameter to satellite communication device, or receive the SVEL harmony sent from satellite communication device and decline
Subtract coefficient；
Satellite communication device is located in jellyfish, is connected by wireless satellite communications with remote control terminal, satellite
Communication device receives the acquisition parameter that remote control terminal is sent, or will receive SVEL and acoustic attenuation coefficient is sent to far
Process control terminal；
Underwater acoustic communication device is located in the pressure chamber in seabed, is connected by underwater sound communication with satellite communication device, the underwater sound
Communication device receives the acquisition parameter that satellite communication device is sent, or will receive SVEL and acoustic attenuation coefficient is sent to and defended
Star communication device；
Acoustic signal collecting unit is located in the pressure chamber in seabed, is connected by watertight cable with underwater acoustic communication device, its
In, including main control unit 41, high-tension circuit plate 42 and signal generation magnification circuit plate 43, main control unit, which has, controls collection ginseng
Number, automatic calculating SVEL and acoustic attenuation coefficient and store function, high-tension circuit plate are used to produce high-voltage pulse signal, believed
Number occur magnification circuit plate be used for amplify high-voltage pulse signal；
Main control unit includes storage control module 411 and data processing module 412, wherein, storage control module is used for
Receive remote control terminal in control software send acquisition parameter and/or preserve by receive transducer send back come sound wave original
Beginning data；
Acoustic signal collecting unit receives the acquisition parameter of remote control terminal control software setting, passes through satellite communication
Device, underwater acoustic communication device are sent to acoustic signal collecting unit, so as to start the main control unit in acoustics signal gathering unit,
Storage control module in main control unit starts high-tension circuit plate, magnification circuit plate occurs for signal and sends high-voltage pulse signal drive
Dynamic acoustic signal R-T unit, so as to which the storage control module in main control unit receives acoustic signal R-T unit and sent back
Acoustic signal；
Storage control module preserves data after receiving acoustic signal, and calls data processing module to automatically extract deposit
In SVEL and acoustic attenuation coefficient, wherein, described data processing module automatically extracts module 4121 including SVEL
Module 4122 is automatically extracted with acoustic attenuation coefficient；SVEL, which automatically extracts module and is used to calculate, to be deposited between two transducer
SVEL in thing, include the first arrival time difference automatic computing module and the automatic computing module of SVEL again；Acoustic attenuation coefficient is certainly
Dynamic extraction module is used to calculating the acoustic attenuation coefficient in deposit between two transducer, calculates mould automatically including power spectrum again
Block and the automatic computing module of acoustic attenuation coefficient；
Acoustic signal R-T unit includes transmitting transducer 51 and receive transducer 52, is respectively used into bottom sediment
Launch high-frequency impulse vibration signal and receive the acoustic signal through deposit.
The method extracted using acoustic in-situ measuring system to halmeic deposit parameters,acoustic, carry out according to the following steps：
Step 1：Start remote terminal computer and control software, set acquisition parameter, including sampling length, sampling frequency
Rate, emitting voltage, filtering parameter, channel parameters, acquisition time interval；
Step 2：Acquisition parameter is sent to satellite communication device by the control software in remote control terminal computer；
Step 3：Acquisition parameter is sent to underwater acoustic communication device by satellite communication device；
Step 4：Collection is sent by the storage control module of underwater acoustic communication device main control unit into acoustics collecting unit
For parameter so as to start main control unit, main control unit starts the high-voltage pulse signal that high-tension circuit plate produces 30kHz frequencies, signal hair
After raw magnification circuit plate amplification high-voltage pulse signal, high-voltage pulse is sent to the acoustic emission transducer of acoustic signal R-T unit
Signal, driving transmitting transducer produce acoustic vibration；
Step 5：Acoustic vibration is propagated into bottom sediment caused by transmitting transducer, and receive transducer, which receives, to be passed through
The vibration signal of deposit and vibration signal is sent in a manner of electric signal to the storage control module in main control unit, and protected
Deposit initial data；
Step 6：Storage control module preserves data after receiving acoustic signal, and calls at the data in main control unit
Module is managed, automatically extracts SVEL and/or acoustic attenuation coefficient in deposit between two transducers, and by the sound wave speed of extraction
Degree and acoustic attenuation coefficient are sent to underwater acoustic communication device；
Automatically first arrival time difference computational methods are：Using the cross correlation algorithm of two receive transducer signals, formula is
In formula, x (t), y (t) are the acoustic signals that receive of two transducers, Rxy(τ) is coefficient correlation, and τ is two signals
The time difference (unit：s)；
SVEL computing module according to formula calculate deposit SVEL, the formula used for：
V=L/ τ
In formula, v is SVEL (unit：M/s), distance (units of the L between two transducers：m).
The algorithm of power spectrum be using discrete data Fourier transform, the formula used for：
In formula, x (n) is N number of observation data sequence of acoustic signal, directly calculates x (n) DFT, obtains X
(k), then take square of its amplitude again, and divided by N, as sequence x (n) power spectrum；
The power spectrum Α that the acoustic signals received according to two transducers calculate1And A (k)2(k) data sequence, by
Acoustic attenuation coefficient computing module searches for maximum energy value Α automatically1maxAnd Α2max, then using formula α=- 20lg (A1max/
A2max)/H, calculates acoustic attenuation coefficient；
Above-mentioned steps calculate automatically by data processing module.
Step 7：The satellite communication that the SVEL of extraction and acoustic attenuation coefficient are sent to sea by underwater acoustic communication device fills
Put；
Step 8：The SVEL of extraction and acoustic attenuation coefficient are sent to indoor remote control terminal by satellite communication device
Control software in computer, is then depicted as figure by result.
The inventive method is specifically illustrated with reference to specific embodiment.
Embodiment 1：
The present embodiment is using some measurement erect-position of Dongying HUANGHE ESTUARY marine site continuous 20 times during it experienced spring tide ebb tide
Sediment acoustics characteristic test process be described.
First turn on the control software in indoor control terminal computer, set acquisition parameter as：Sampling length 2K, sampling
Frequency 10K, emitting voltage 400V, filtering parameter are respectively low cut-off frequency rate 1K, lowpass frequency 3K, high-pass equipment 100K, high cut-off frequency
Rate 110K, channel selecting T1 launch, R1, R2 and R3 channel receptions, and the time interval measured every time is set as 30min, i.e., every
Automatic repeat step one arrives step 8 in 30min.
Through step 2, acquisition parameter is sent to satellite communication device；
Through step 3, acquisition parameter is sent to underwater acoustic communication device；
Through step 4, into acoustics collecting unit, the storage control module of main control unit transmits acquisition parameter so as to start master
Unit is controlled, the storage control module in main control unit starts the high-voltage pulse signal that high-tension circuit plate produces 30kHz frequencies, signal
After generation magnification circuit plate amplification high-voltage pulse signal, high-tension pulse is sent to the acoustic emission transducer of acoustic signal R-T unit
Signal is rushed, driving transmitting transducer produces acoustic vibration；
Through step 5, receive transducer receives the vibration signal through deposit and by vibration signal in a manner of electric signal
The storage control module being sent in main control unit, and preserve initial data；
Through step 6, data processing module calculates SVEL and acoustic attenuation coefficient in deposit automatically；
Pass through step 7 again, result of calculation is sent to the satellite communication terminal on sea；
Finally pass through step 8, result of calculation is sent to the control software in indoor remote control terminal computer, and
Show to graphically, every time after the completion of collection, figure automatically updates display, and Fig. 4-5 is shown after 20 measurements
Final graphics result.
Fig. 4 is between transducer R1 and R2, and the SVEL between R2 and R3 in deposit；Fig. 5 is transducer R1
Between R2, and the acoustic attenuation coefficient between R2 and R3 in deposit.Shown in figure between R1 and R2, and between R2 and R3
The change of SVEL over time in deposit slowly increases, and acoustic attenuation coefficient then slowly reduces, and reflects tide pair
The change of caused sound physical properties property after sediment disturbance.
Examples detailed above is technical concept and technical characterstic to illustrate the invention, can not limit the present invention's with this
Protection domain.The equivalent transformation or modification that all essence according to the present invention is done, should all cover in protection scope of the present invention
Within.
Claims (8)
1. a kind of extraction method of halmeic deposit parameters,acoustic, it is characterised in that comprise the following steps：
(1) start the computer of remote control terminal (1), collection is set by the control software in remote control terminal computer
Parameter, described parameter include sampling length, sample frequency, emitting voltage, filtering parameter, channel parameters, acquisition time interval；
(2) acquisition parameter is sent to satellite communication device (2) by the control software in remote control terminal computer；
(3) acquisition parameter is sent to underwater acoustic communication device (3) by satellite communication device；
(4) sent by the storage control module (411) of underwater acoustic communication device main control unit (41) into acoustics collecting unit (4)
So as to start main control unit, the storage control module in main control unit starts high-tension circuit plate (42) and produces 30kHz acquisition parameter
The high-voltage pulse signal of frequency, after magnification circuit plate (43) amplification high-voltage pulse signal occurs for signal, receive and dispatch and fill to acoustic signal
The acoustic emission transducer (51) for putting (5) sends high-voltage pulse signal, and driving acoustic emission transducer produces acoustic vibration；
(5) acoustic vibration caused by transmitting transducer is propagated into bottom sediment, and receive transducer (52) is received through deposition
The vibration signal of thing and vibration signal is sent in a manner of electric signal to the storage control module in main control unit, and preserves original
Beginning data；
(6) after storage control module receives data, the data processing module (412) of main control unit is called, two is automatically extracted and changes
The SVEL and/or acoustic attenuation coefficient of deposit between energy device, and the SVEL of extraction and acoustic attenuation coefficient are sent to
Underwater acoustic communication device；
(7) SVEL of extraction and acoustic attenuation coefficient are sent to the satellite communication device on sea by underwater acoustic communication device；
(8) SVEL of extraction and acoustic attenuation coefficient are sent in indoor remote control terminal computer by satellite communication device
Control software, result is then depicted as figure.
2. according to the method for claim 1, it is characterised in that in step (6), connect in the storage control module of main control unit
After receiving data, the data processing module in main control unit is called, wherein：SVEL automatically extracts module (4121) and counted automatically
Calculate the first arrival time difference and SVEL.
3. according to the method for claim 1, it is characterised in that in step (6), connect in the storage control module of main control unit
After receiving data, the data processing module in main control unit is called, wherein：Acoustic attenuation coefficient automatically extracts module (4122) and counted automatically
Calculate power spectrum and acoustic attenuation coefficient.
4. a kind of acoustic in-situ measuring system automatically extracted for halmeic deposit parameters,acoustic, including be sequentially connected long-range
Control terminal (1), satellite communication device (2), underwater acoustic communication device (3), acoustic signal collecting unit (4), acoustic signal transmitting-receiving
Device (5), it is characterised in that：
Described remote control terminal (1) passes through wireless positioned at interior, including computer and control software with satellite communication device
Satellite communication is connected, and sends acquisition parameter to satellite communication device (2), or receive and sent from satellite communication device (2)
The SVEL and acoustic attenuation coefficient returned；
Described satellite communication device (2) is located in jellyfish, is connected with remote control terminal (1) by wireless satellite communications
Connect, satellite communication device (2) receives the acquisition parameter that remote control terminal (1) is sent, or will receive SVEL harmony and decline
Subtract coefficient and be sent to remote control terminal (1)；
Described underwater acoustic communication device (3) is located in the pressure chamber in seabed, passes through underwater sound communication mode with satellite communication device (2)
Be connected, underwater acoustic communication device (3) receive satellite communication device (2) send acquisition parameter, or will receive SVEL and
Acoustic attenuation coefficient is sent to satellite communication device (2)；
Described acoustic signal collecting unit (4) is located in the pressure chamber in seabed, passes through watertight cable and underwater acoustic communication device (3)
Connection；Magnification circuit plate (43) occurs including main control unit (41), high-tension circuit plate (42) and signal；Described main control unit
(41) storage control module (411) and data processing module (412) are included；
In described acoustic signal R-T unit (5) insertion bottom sediment, pass through acoustic signal in watertight cable and pressure chamber
Storage control module in collecting unit is connected；Including transmitting transducer (51) and receive transducer (52).
5. system according to claim 4, it is characterised in that described data processing module (412), including SVEL
Automatically extract module (4121) and acoustic attenuation coefficient automatically extracts module (4122), the two runs independently of one another.
6. system according to claim 5, it is characterised in that described SVEL automatically extracts module (4121), bag
The first arrival time difference automatic computing module and the automatic computing module of SVEL are included, is series relationship between two modules；Acoustic attenuation coefficient
Module (4122), including the automatic computing module of power spectrum and the automatic computing module of acoustic attenuation coefficient are automatically extracted, between two modules
For series relationship.
7. system according to claim 4, it is characterised in that described acoustic signal R-T unit (5) is enclosed inside
Transmitting transducer (51) and two stainless steel acoustic signals of receive transducer (52) transmitting-receiving feeler lever unit, every acoustic signal
A transmitting transducer (51) and three receive transducers (52) are equipped with transmitting-receiving feeler lever unit.
8. system according to claim 7, it is characterised in that an acoustic signal transmitting-receiving feeler lever unit is from top to bottom distributed
There are transmitting transducer T1 (511), receive transducer R4 (524), receive transducer R5 (525), receive transducer R6 (526), separately
A piece acoustic signal transmitting-receiving feeler lever unit is from top to bottom distributed with receive transducer R1 (521), receive transducer R2 (522), connect
Receive transducer R3 (523), transmitting transducer T2 (512).
Priority Applications (1)
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| CN110954907A (en) * | 2019-11-26 | 2020-04-03 | 中国科学院深海科学与工程研究所 | High-precision sediment acoustic detection device applied to deep sea superficial surface |
| CN111487323A (en) * | 2020-05-11 | 2020-08-04 | 中国科学院声学研究所东海研究站 | Embedded portable parameter wave real-time submarine mineral acoustic characteristic measuring device |
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| CN112881525A (en) * | 2021-01-18 | 2021-06-01 | 湖南国天电子科技有限公司 | In-situ measurement device, system and method for acoustic characteristics of submarine sediments |
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