CN104991288B - It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system and method based on sonar electromagnetism - Google Patents
It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system and method based on sonar electromagnetism Download PDFInfo
- Publication number
- CN104991288B CN104991288B CN201510401359.4A CN201510401359A CN104991288B CN 104991288 B CN104991288 B CN 104991288B CN 201510401359 A CN201510401359 A CN 201510401359A CN 104991288 B CN104991288 B CN 104991288B
- Authority
- CN
- China
- Prior art keywords
- sonar
- under water
- electromagnetic wave
- signal
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
Based on sonar electromagnetism the ocean of Detection Techniques is cooperateed with to stay under water oily detecting system and method the invention discloses a kind of, it includes sonar electromagnetic radiation unit, sonar electromagnetic wave receiving unit, signal gathering unit, data analysis unit, control unit and display unit；Sonar electromagnetic radiation unit is to field emission Sonar Signal to be detected and electromagnetic wave signal；Sonar electromagnetic wave receiving unit receives the Sonar Signal and electromagnetic wave signal that region to be detected is returned；Signal gathering unit carries out Signal Pretreatment to the Sonar Signal and electromagnetic wave signal that receive；The signal received is carried out analyzing and processing in real time and obtained after the corresponding oily detection information that stays under water by data analysis unit, and the current region to be detected of judgement is compared with the presence or absence of the oil that stays under water with the default oily detection information benchmark database that stays under water；Described control unit is the control centre of whole device.The present invention can relatively accurately detect the oil that stays under water in ocean, and wide with investigative range, the low feature of cost.
Description
Technical field
The invention belongs to ocean environment monitoring technical field, particularly relate to a kind of with sonar and electromagnetic combination spy
Survey technology, realize ocean stay under water oil detection system and method.
Background technology
In recent years, with the development of global economy, sharply increased by seaborne crude oil amount, corresponding oil tanker accident
Crude oil leakage event is caused to occur again and again, and bank oil storage tank, floating pipe line and oil well oil spill events also happen occasionally.
When oil spilling is by multiple actions such as weathering and seawater movements, part oil spilling stays under water, and forms the oil that stays under water.The oil that stays under water is deposited to
Seabed sinks to the bottom oil, also there is the suspended oil suspended in the seawater.Because the oil that stays under water is difficult to find, weathering speed is very slow, right
The marine eco-environment causes long-term influence, and the oil that stays under water can repeatedly float with the change of the conditions such as water temperature, current, formation pair
The multiple pollution of water front, strong influence Oceanic Fishery, the normal operation of tourist industry, seriously restricts economic development.
The detection in the world for the oil that stays under water mainly has at present：Spot sampling, optical detection, sonar detection, laser fluorescence,
The methods such as fluorescence polarization.Wherein, spot sampling, physics and chemical sample can obtain oil spilling information, and False Rate is low, but is constrained to
Sea situation, and also have certain limitation to the sampling for the oil that stays under water；The False Rate of underwater optics detection method is low, but it sees in the seawater
Survey scope small；Laser fluorescence and fluorescence polarization can obtain oil spilling information, but for the oil that stays under water detection technique be not also it is very ripe,
It is also susceptible to the influence of sea water opacity.To sum up, the existing Detection Techniques for the oil that stays under water, are not met by ocean a wide range of
Accurately detecting, and existing certain methods labor intensive material resources are serious.So exploring a kind of achievable a wide range of and low cost
Detection Techniques just seem very necessary.
The content of the invention
In view of the defect that prior art is present, a kind of based on sonar electromagnetism collaboration detection skill the invention aims to provide
The ocean of art is stayed under water oily detecting system, and it can relatively accurately detect the oil that stays under water in ocean, and wide with investigative range,
The low feature of cost；While it can stay under water for ocean, oil is cleared up, strengthening marine pollution monitoring law enforcement dynamics, there is provided strong
Informational support and reliable guarantee.
To achieve these goals, technical scheme：
It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system based on sonar electromagnetism, it is characterised in that：
Including sonar electromagnetic radiation unit, sonar electromagnetic wave receiving unit, signal gathering unit, data analysis unit,
Control unit and display unit；
Wherein, the sonar electromagnetic radiation unit connection described control unit, it is used for field emission sound to be detected
Signal and electromagnetic wave signal；
The sonar electromagnetic wave receiving unit connects the signal gathering unit；It is used to receive what region to be detected was returned
Sonar Signal and electromagnetic wave signal；
The signal gathering unit connects data analysis unit, and it is used for Sonar Signal and electromagnetic wave signal to receiving
Carry out Signal Pretreatment；
The data analysis unit connects described control unit, and the data analysis unit is used in real time will after pretreatment
Sonar Signal and electromagnetic wave signal carry out analyzing and processing and obtain after the corresponding oily detection information that stays under water, visited with the default oil that stays under water
The current region to be detected of judgement is compared with the presence or absence of the oil that stays under water in measurement information benchmark database；Wherein, the data analysis unit
Include the acoustics for oily detection information analyzing and processing of staying under water and the coupled relation model of electromagnetism collaboration detection, and based on institute
State coupled relation model and set up the oily detection information benchmark database that stays under water；
Described control unit connects the display unit, is the control centre of whole device, in the data analysis unit
Acquisition is stayed under water after oily detection information, and the oily detection information that stays under water is sent to the display unit in real time and shown, in order to
The display unit forms the geographical distribution situation information of the corresponding oil that stays under water.
Further, described sonar electromagnetic radiation unit includes sonar emitter and electromagnetic wave launcher；
The sonar emitter is launched or multibeam sonar transmitting using side scan sonar, and the electromagnetic wave launcher is Microwave emission
Device.
Further, data analysis unit is used to the sonar and electromagnetic wave information that receive carrying out Treatment Analysis, according to
Stay under water oil and seawater the parameter information such as acoustic attenuation, acoustic impedance, electrical conductivity difference, therefrom analyze acquisition and stay under water oil detection letter
Breath；The data analysis unit design principle：Because the electrical conductivity of seawater is larger, there are shielding action, and electromagnetic wave to electromagnetic wave
More highly attenuating faster of frequency, so the detection range of the electromagnetic wave of the microwave band used merely in the seawater is limited.And
Farther out, investigative range is wide for the propagation distance of sound wave in the seawater, but sonar contact is difficult to differentiate between staying under water under water, oil with planting under water
The reflection sound wave information of thing, weaker for the seabed involuting wave signal of soft, smooth, depression, detection accuracy is not high.So this is
Sonar electromagnetism collaboration detection model is set up in system design, and oil detection of staying under water is carried out to large-scale region first by sonar contact,
It was found that after the approximate region that the oil that stays under water is present, by the ship for being loaded with sonar electromagnetic exploration apparatus close to the region, reaching electromagnetic wave
After detectable distance, electromagnetic wave detection is carried out, the presence for the oil that stays under water further is detected.
Specifically, the data analysis unit includes being preinstalled with the coupled relation model of acoustics and electromagnetism collaboration detection,
Sonar Signal after pretreatment and electromagnetic wave signal are subjected to data extraction according to the coupled relation model and correspondence is obtained
The oily detection information that stays under water data extraction module and be connected with the data extraction module, receive data extraction module obtain
The oily detection information that stays under water after be compared analysis with the oily detection information benchmark database that stays under water of internal preset, judgement is currently treated
Search coverage whether there is the comparative analysis module for the oil that stays under water.
It is preferred that, the coupled relation model of acoustics and electromagnetism the collaboration detection includes sonar contact model and electromagnetism
Detection model：
Described sonar contact model includes：
(1), when sound wave is propagated in density for ρ medium with speed C, by the definition of acoustic impedance, basic model formula can be obtained
One：
Z=C ρ
(2), reflected when sound wave enters another medium from a kind of medium or the energy of loss is largely by two
The acoustic impedance of medium is planted to determine, it is therefore assumed that boat-carrying sonar launches sound wave to seabed, and it is another by a kind of medium vertical incidence
A kind of medium, obtains the acoustic reflection coefficient R models of formula two：
In formula two, Z0For the acoustic impedance C of seawater0ρ0, Z1For the acoustic impedance C for the oil that stays under water1ρ1, A is sonic wave amplitude, i.e. AIt is incident、
AReflectionThe sonic wave amplitude that the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting are received；
For the acoustic impedance of seawater, for the acoustic impedance for the oil that stays under water, be sonic wave amplitude (3), the sea of the vertical incidence plane wave of formula three
Bottom reflection loss BL models：
BL=-20lg [(C1ρ1-C0ρ0)/(C1ρ1+C0ρ0)]
In formula three, C0ρ0For the acoustic impedance of seawater, C1ρ1For the acoustic impedance for the oil that stays under water.
(4), in view of sound wave is propagated in media as well to decay, the intensity of SATT is different in different medium, because
This, obtains formula four, the attenuation coefficient α that sound wave is propagated in media as wellSoundModel：
αSound=20lg (AReflection/AIt is incident)/2L
In formula four：AIt is incident、AReflectionWhat the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting were received
Sonic wave amplitude, L is the distance of detection.
The electromagnetic wave detection model includes：
According to the theory of Medium Wave Guide, electromagnetic wave attenuation constant α can obtainMagnetic, phase-shift constant βMagneticWith Electromagnetic Wave Propagation constant
Relational model：
γ=αMagnetic+jβMagnetic
γ is plural number, by real part electromagnetic wave attenuation constant αMagneticWith imaginary part phase-shift constant βMagneticComposition, j represents imaginary part.
Further obtain Electromagnetic Wave Propagation constant and ε ', ε ' ' relation：
In formulaλ is free space wavelength, λcFor waveguide cut-off wavelength, ε ' represents the sheet of the energy storage of material
Neck, ε ' ' represents the ability of material power consumption.
It is respectively formula seven, formula that electromagnetic wave, which is obtained, by dielectric additional attenuation amount model and additional phase shift amount model
Eight：
Meanwhile, the present invention also provides a kind of oily detection method of staying under water based on the system, and it comprises the following steps：
Step 1：Foundation is stayed under water oily detection information benchmark database：Using the ocean stay under water oily detecting system in the absence of
Stay under water oil marine site detected, data analysis unit is received after Sonar Signal and electromagnetic wave signal according to the acoustics and electricity
The coupled relation model of magnetics collaboration detection carries out data extraction and sets up the oily detection information benchmark database that stays under water；
Step 2：In region to be detected, using sonar electromagnetic radiation unit to field emission sound wave to be detected and electromagnetic wave
Signal, and the sound wave and electromagnetic wave signal returned is received using sonar electromagnetic wave receiving unit；Pass through the signal gathering unit
Data analysis unit is transferred to after being pre-processed；
Step 3：Data analysis unit is in real time analyzed and processed Sonar Signal after pretreatment and electromagnetic wave signal
Obtain after the corresponding oily detection information that stays under water, judgement, which is compared, with the default oily detection information benchmark database that stays under water currently treats
With the presence or absence of the oil that stays under water, and by the oily detection information that stays under water, transmission to the display unit is shown search coverage in real time.
Described sonar electromagnetic radiation unit includes sonar emitter and electromagnetic wave launcher；The sonar hair
Injection device is launched or multibeam sonar transmitting using side scan sonar, and the electromagnetic wave launcher is microwave launcher.
The data analysis unit includes being preinstalled with the coupled relation model of acoustics and electromagnetism collaboration detection, will be through pre- place
Sonar Signal and electromagnetic wave signal after reason carry out data extraction according to the coupled relation model and obtain the corresponding oil that stays under water
The data extraction module of detection information and it is connected with the data extraction module, receives the oil that stays under water that data extraction module is obtained
Analysis is compared after detection information with the oily detection information benchmark database that stays under water of internal preset, current region to be detected is judged
With the presence or absence of the comparative analysis module for the oil that stays under water.
It is preferred that, the coupled relation model of acoustics and electromagnetism the collaboration detection includes sonar contact model and electromagnetism
Detection model：
Described sonar contact model includes：
(1), when sound wave is propagated in density for ρ medium with speed C, by the definition of acoustic impedance, basic model formula can be obtained
One：
Z=C ρ
(2), reflected when sound wave enters another medium from a kind of medium or the energy of loss is largely by two
The acoustic impedance of medium is planted to determine, it is therefore assumed that boat-carrying sonar launches sound wave to seabed, and it is another by a kind of medium vertical incidence
A kind of medium, obtains the acoustic reflection coefficient R models of formula two：
In formula two, Z0For the acoustic impedance C of seawater0ρ0, Z1For the acoustic impedance C for the oil that stays under water1ρ1, A is sonic wave amplitude, i.e. AIt is incident、
AReflectionThe sonic wave amplitude that the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting are received；
It is sonic wave amplitude for the acoustic impedance for the oil that stays under water, i.e., respectively sonar emitter is launched for the acoustic impedance of seawater
And the sonic wave amplitude that sonic wave amplitude and sonar reception device are received；(3), the sub-bottom reflection of the vertical incidence plane wave of formula three is damaged
Lose BL models：
BL=-20lg [(C1ρ1-C0ρ0)/(C1ρ1+C0ρ0)]
In formula three, C0ρ0For the acoustic impedance of seawater, C1ρ1For the acoustic impedance for the oil that stays under water.
(4), in view of sound wave is propagated in media as well to decay, the intensity of SATT is different in different medium, because
This, obtains formula four, the attenuation coefficient α that sound wave is propagated in media as wellSoundModel：
αSound=20lg (AReflection/AIt is incident)/2L
In formula four：AIt is incident、AReflectionWhat the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting were received
Sonic wave amplitude, L is the distance of detection.
The electromagnetic wave detection model includes：
According to the theory of Medium Wave Guide, electromagnetic wave attenuation constant α can obtainMagnetic, phase-shift constant βMagneticWith Electromagnetic Wave Propagation constant
Relational model：
γ=αMagnetic+jβMagnetic
γ is plural number, by real part electromagnetic wave attenuation constant αMagneticWith imaginary part phase-shift constant βMagneticComposition, j represents imaginary part.
Further obtain Electromagnetic Wave Propagation constant and ε ', ε ' ' relation：
In formulaλ is free space wavelength, λcFor waveguide cut-off wavelength, ε ' represents the sheet of the energy storage of material
Neck, ε ' ' represents the ability of material power consumption.
It is respectively formula seven, formula that electromagnetic wave, which is obtained, by dielectric additional attenuation amount model and additional phase shift amount model
Eight：
Compared with prior art, beneficial effects of the present invention：
1st, the present invention is using sonar electromagnetism collaboration Detection Techniques, and the investigative range for effectively solving original technology presence is small,
The problems such as equipment cost is high, while sonar electromagnetism collaboration Detection Techniques can relatively accurately detect the oil that stays under water in ocean, and
And it is wide with investigative range, method is simple and easy to apply, the low feature of cost.
2nd, the research of domestic relevant oil detection of staying under water, has that Property comparison is single, and the precision of single method is not high, mistake
The high defect of report rate, prior art can't solve very well correlation stay under water oil detection the problem of, and sonar and electromagnetism are combined,
It just can be very good to avoid the shortcoming of single detection method；
3rd, data analysis unit sets benchmark database, and remotely tentatively detection-sonar electromagnetism is common based on sonar by the present invention
The sonar electromagnetism collaboration detection mode of detection, effectively increases the precision of detection, breaks through the key of existing pull-type detection method
Technology, while having efficient operational capability according to the Sonar Signal and electromagnetic wave signal that are reflected back, and builds according to early stage investigation
Related Data analysis library is found, makes the present apparatus that there is universal application.
Brief description of the drawings
Fig. 1 is structure composition block diagram of the present invention；
Fig. 2 is the present invention-cooperate with the ocean of Detection Techniques to stay under water oily detection system structural representation based on sonar electromagnetism.
Fig. 3 is the present invention-cooperate with the ocean of Detection Techniques to stay under water oily detection principle schematic diagram based on sonar electromagnetism
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
Design principle of the present invention：Because the electrical conductivity of seawater is larger, there are shielding action, and the frequency of electromagnetic wave to electromagnetic wave
More highly attenuating faster of rate, so the detection range of the electromagnetic wave of the microwave band used merely in the seawater is limited.And sound wave
Farther out, investigative range is wide for propagation distance in the seawater, but sonar contact is difficult to differentiate between stay under water under water oil and underwater plant
Reflection sound wave information, weaker for the seabed involuting wave signal of soft, smooth, depression, detection accuracy is not high.As shown in figure 3, institute
Sonar electromagnetism collaboration detection model is set up with the system design, the oil that stays under water is carried out to large-scale region first by sonar contact
Detection, discovery is stayed under water after the oily approximate region existed, by the ship for being loaded with sonar electromagnetic exploration apparatus close to the region, reaches electricity
After the detectable distance of magnetic wave, electromagnetic wave detection is carried out, the presence for the oil that stays under water further is detected.
In view of the defect that prior art is present, the present invention devises a kind of ocean based on sonar electromagnetism collaboration Detection Techniques
Stay under water oily detecting system, as shown in Figure 1 and Figure 2：
Including sonar electromagnetic radiation unit, sonar electromagnetic wave receiving unit, signal gathering unit, data analysis unit,
Control unit and display unit；
Wherein, the sonar electromagnetic radiation unit connection described control unit, it is used for field emission sound to be detected
Signal and electromagnetic wave signal；Described sonar electromagnetic radiation unit includes sonar emitter and electromagnetic radiation is filled
Put；The sonar emitter is launched or multibeam sonar transmitting using side scan sonar, and the electromagnetic wave launcher is microwave
Emitter.
The sonar electromagnetic wave receiving unit connects the signal gathering unit；It is used to receive what region to be detected was returned
Sonar Signal and electromagnetic wave signal；
The signal gathering unit connects data analysis unit, and it is used for Sonar Signal and electromagnetic wave signal to receiving
Signal Pretreatment is carried out, the Signal Pretreatment includes being filtered gained signal, is converted into corresponding electric signal etc.；
The data analysis unit connects described control unit, the data analysis unit include data extraction module and
Comparative analysis module；The data extraction module is preinstalled with the coupled relation model of acoustics and electromagnetism collaboration detection, receives
After Sonar Signal and electromagnetic wave signal after pretreatment, data extraction is carried out according to the parameter equation in the model, is obtained
Sent after the corresponding oily detection information that stays under water to comparative analysis module；The comparative analysis module is preinstalled with the oily detection information that stays under water
Benchmark database, receives the oily detection information base that stays under water with internal preset after the oily detection information that stays under water that data extraction module is obtained
Quasi- database is compared analysis, judge current region to be detected with the presence or absence of the oil that stays under water (when exist stay under water oil when, the sound of reflection
Reflection R in ripple information will be reduced, and reflection loss BL then increases, acoustic attenuation coefficient αSoundThen increase；The electromagnetic wave of reflection
Attenuation αMagneticWith annex phase-shift phase βMagneticIt will reduce.Judge search coverage with the presence or absence of the oil that stays under water with this.Gained is detected
As a result show on the display system.).
Wherein, the oily detection information that stays under water includes acoustic reflection coefficient, sound wave Bottom-Reflection-Loss and acoustic attenuation system
The information of acoustic wave of parameter such as number and the electromagnetic wave information for including the parameter such as attenuation and additional phase shift amount；The oil that stays under water is visited
Measurement information benchmark database is detected by using the ocean oily detecting system of staying under water in the marine site in the absence of the oil that stays under water, several
The coupled relation for cooperateing with detection after Sonar Signal and electromagnetic wave signal according to the acoustics and electromagnetism is received according to analytic unit
Benchmark database (including the R that model carries out data extraction and set up0、BL0、)。
The coupled relation model of acoustics and electromagnetism the collaboration detection includes sonar contact model and electromagnetic surveying mould
Type：
Described sonar contact model includes：
(1), when sound wave is propagated in density for ρ medium with speed C, by the definition of acoustic impedance, basic model formula can be obtained
One：
Z=C ρ
(2), reflected when sound wave enters another medium from a kind of medium or the energy of loss is largely by two
The acoustic impedance of medium is planted to determine, it is therefore assumed that boat-carrying sonar launches sound wave to seabed, and it is another by a kind of medium vertical incidence
A kind of medium, obtains the acoustic reflection coefficient R models of formula two：
In formula two, Z0For the acoustic impedance C of seawater0ρ0, Z1For the acoustic impedance C for the oil that stays under water1ρ1, A is sonic wave amplitude, i.e. AIt is incident、
AReflectionThe sonic wave amplitude that the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting are received；
It is sonic wave amplitude for the acoustic impedance for the oil that stays under water, i.e., respectively sonar emitter is launched for the acoustic impedance of seawater
And the sonic wave amplitude that sonic wave amplitude and sonar reception device are received；(3), the sub-bottom reflection of the vertical incidence plane wave of formula three is damaged
Lose BL models：
BL=-20lg [(C1ρ1-C0ρ0)/(C1ρ1+C0ρ0)]
In formula three, C0ρ0For the acoustic impedance of seawater, C1ρ1For the acoustic impedance for the oil that stays under water.
(4), in view of sound wave is propagated in media as well to decay, the intensity of SATT is different in different medium, because
This, obtains formula four, the attenuation coefficient α that sound wave is propagated in media as wellSoundModel：
αSound=20lg (AReflection/AIt is incident)/2L
In formula four：AIt is incident、AReflectionWhat the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting were received
Sonic wave amplitude, L is the distance of detection.
Due to seawater and oils acoustic characteristic exist very big difference, sound wave mainly occur in seabed scattering (including reflection
And refraction), by being collected processing to scatter echo signal, based on the separate equations in sonar contact model, such as analyze
Go out reflection R, Bottom-Reflection-Loss BL and acoustic attenuation coefficient αSoundCan tentatively it judge Deng acoustics index, and according to these indexs
Seabed is with the presence or absence of the oil that stays under water.
The electromagnetic wave detection model includes：
When microwave is propagated in the dielectric, because the energy storage of polarization is acted on, the spread speed for reducing microwave is caused attached
Plus phase shift；Because the power consumption of polarization is acted on, the energy that microwave is lost is caused into additional attenuation；
According to the theory of Medium Wave Guide, electromagnetic wave attenuation constant α can obtainMagnetic, phase-shift constant βMagneticWith Electromagnetic Wave Propagation constant
Relational model：
γ=αMagnetic+jβMagnetic
γ is plural number, by real part electromagnetic wave attenuation constant αMagneticWith imaginary part phase-shift constant βMagneticComposition, j represents imaginary part.
Further obtain Electromagnetic Wave Propagation constant and ε ', ε ' ' relation：
In formulaλ is free space wavelength, λcFor waveguide cut-off wavelength, ε ' represents the sheet of the energy storage of material
Neck, ε ' ' represents the ability of material power consumption.
It is respectively formula seven, formula that electromagnetic wave, which is obtained, by dielectric additional attenuation amount model and additional phase shift amount model
Eight：
Dielectric will polarize in the presence of external electric field, in polarization process, and dielectric electric dipole will be outside
Energy is obtained in electric field, and is stored in the form of potential energy, in identical external electric field, the dielectric energy storage of different materials
It is of different sizes, the ability of the energy storage of material is represented with ε '.When external electric field is cancelled, the potential energy stored by dielectric turns a part
Turn to heat and dissipate away, the dielectric power consumption of different materials is of different sizes, and the ability that material consumes energy is represented with ε ' '.Handing over
In the presence of changed electric field, dielectric energy storage, power consumption process are not to carry out simultaneously, but are existedPhase difference.Therefore it is different
Dielectric characteristic can be represented with complex dielectric constant ε, ε=ε '-j ε ' ', and j is born in formula and represents that real part has with imaginary part
Phase difference.Such as measured according to experiment, when the frequency of additional alternating electromagnetic field is 1010During Hz, i.e., in the X band limits of microwave
(3 centimetres of wavelength)：
ε '=64, ε ' '=29 of water
ε '=2, the ε ' '=0.004 (oil of heterogeneity, ε ' and ε ' ' the value somewhat difference of oil.)
Described control unit connects the display unit, is the control centre of whole device, in the data analysis unit
Acquisition is stayed under water after oily detection information, and the oily detection information that stays under water is sent to the display unit in real time and shown, in order to
The display unit forms the geographical distribution situation information of the corresponding oil that stays under water.
Meanwhile, the present invention also provides a kind of oily detection method of staying under water based on the system, and it comprises the following steps：
Step 1：Foundation is stayed under water oily detection information benchmark database (R0、BL0、)：Utilize the ocean
Oily detecting system of staying under water is detected in the marine site in the absence of the oil that stays under water, and data analysis unit receives Sonar Signal and electromagnetic wave
Cooperate with the coupled relation model of detection to carry out data extraction according to the acoustics and electromagnetism after signal and set up oil detection of staying under water
Information benchmark database；
Step 2：In region to be detected, using sonar electromagnetic radiation unit to field emission sound wave to be detected and electromagnetic wave
Signal, and the sound wave and electromagnetic wave signal returned is received using sonar electromagnetic wave receiving unit；Pass through the signal gathering unit
Data analysis unit is transferred to after being pre-processed；
Step 3：Data analysis unit is in real time analyzed and processed Sonar Signal after pretreatment and electromagnetic wave signal
Obtain after the corresponding oily detection information that stays under water, judgement, which is compared, with the default oily detection information benchmark database that stays under water currently treats
With the presence or absence of the oil that stays under water, (when oil is stayed under water in presence, the reflection R in the information of acoustic wave of reflection will be reduced search coverage, instead
Penetrate loss BL increases, acoustic attenuation coefficient αSoundIncrease；The attenuation α of the electromagnetic wave of reflectionMagneticWith annex phase-shift phase βMagneticIt will reduce.With
This judges the search coverage with the presence or absence of staying under water oil), and the oily detection information that stays under water is sent to described display unit in real time
Row display.
Described sonar electromagnetic radiation unit includes sonar emitter and electromagnetic wave launcher；The sonar hair
Injection device is launched or multibeam sonar transmitting using side scan sonar, and the electromagnetic wave launcher is microwave launcher.
The data analysis unit includes being preinstalled with the coupled relation model of acoustics and electromagnetism collaboration detection, will be through pre- place
Sonar Signal and electromagnetic wave signal after reason carry out data extraction according to the coupled relation model and obtain the corresponding oil that stays under water
The data extraction module of detection information and it is connected with the data extraction module, receives the oil that stays under water that data extraction module is obtained
Analysis is compared after detection information with the oily detection information benchmark database that stays under water of internal preset, current region to be detected is judged
With the presence or absence of the comparative analysis module for the oil that stays under water.
It is preferred that, the coupled relation model of acoustics and electromagnetism the collaboration detection includes sonar contact model and electromagnetism
Detection model：
Described sonar contact model includes：
(1), when sound wave is propagated in density for ρ medium with speed C, by the definition of acoustic impedance, basic model formula can be obtained
One：
Z=C ρ
(2), reflected when sound wave enters another medium from a kind of medium or the energy of loss is largely by two
The acoustic impedance of medium is planted to determine, it is therefore assumed that boat-carrying sonar launches sound wave to seabed, and it is another by a kind of medium vertical incidence
A kind of medium, obtains the acoustic reflection coefficient R models of formula two：
In formula two, Z0For the acoustic impedance C of seawater0ρ0, Z1For the acoustic impedance C for the oil that stays under water1ρ1, A is sonic wave amplitude, i.e. AIt is incident、
AReflectionThe sonic wave amplitude that the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting are received；
It is sonic wave amplitude for the acoustic impedance for the oil that stays under water, i.e., respectively sonar emitter is launched for the acoustic impedance of seawater
And the sonic wave amplitude that sonic wave amplitude and sonar reception device are received；(3), the sub-bottom reflection of the vertical incidence plane wave of formula three is damaged
Lose BL models：
BL=-20lg [(C1ρ1-C0ρ0)/(C1ρ1+C0ρ0)]
In formula three, C0ρ0For the acoustic impedance of seawater, C1ρ1For the acoustic impedance for the oil that stays under water.
(4), in view of sound wave is propagated in media as well to decay, the intensity of SATT is different in different medium, because
This, obtains formula four, the attenuation coefficient α that sound wave is propagated in media as wellSoundModel：
αSound=20lg (AReflection/AIt is incident)/2L
In formula four：AIt is incident、AReflectionWhat the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting were received
Sonic wave amplitude, L is the distance of detection.
Due to seawater and oils acoustic characteristic exist very big difference, sound wave mainly occur in seabed scattering (including reflection
And refraction), by being collected processing to scatter echo signal, based on the separate equations in sonar contact model, such as analyze
Go out reflection R, Bottom-Reflection-Loss BL and acoustic attenuation coefficient αSoundCan tentatively it judge Deng acoustics index, and according to these indexs
Seabed is with the presence or absence of the oil that stays under water.
The electromagnetic wave detection model includes：
When microwave is propagated in the dielectric, because the energy storage of polarization is acted on, the spread speed for reducing microwave is caused attached
Plus phase shift；Because the power consumption of polarization is acted on, the energy that microwave is lost is caused into additional attenuation；
According to the theory of Medium Wave Guide, electromagnetic wave attenuation constant α can obtainMagnetic, phase-shift constant βMagneticWith Electromagnetic Wave Propagation constant
Relational model：
γ=αMagnetic+jβMagnetic
γ is plural number, there is real part electromagnetic wave attenuation constant αMagneticWith imaginary part phase-shift constant βMagneticComposition, j represents imaginary part.
Further obtain Electromagnetic Wave Propagation constant and ε ', ε ' ' relation：
In formulaλ is free space wavelength, λcFor waveguide cut-off wavelength, ε ' represents the sheet of the energy storage of material
Neck, ε ' ' represents the ability of material power consumption.
It is respectively formula seven, formula that electromagnetic wave, which is obtained, by dielectric additional attenuation amount model and additional phase shift amount model
Eight：
Dielectric will polarize in the presence of external electric field, in polarization process, and dielectric electric dipole will be outside
Energy is obtained in electric field, and is stored in the form of potential energy, in identical external electric field, the dielectric energy storage of different materials
It is of different sizes, the ability of the energy storage of material is represented with ε '.When external electric field is cancelled, the potential energy stored by dielectric turns a part
Turn to heat and dissipate away, the dielectric power consumption of different materials is of different sizes, and the ability that material consumes energy is represented with ε ' '.Handing over
In the presence of changed electric field, dielectric energy storage, power consumption process are not to carry out simultaneously, but are existedPhase difference.Therefore it is different
Dielectric characteristic can represent that ε=ε '-j ε ' ' bear j in formula and represent real part and imaginary part with complex dielectric constant ε
HavePhase difference.According to experiment measurement, when the frequency of additional alternating electromagnetic field is 1010During Hz, i.e., the X band limits in microwave
Interior (3 centimetres of wavelength)：
ε '=64, ε ' '=29 of water
ε '=2, the ε ' '=0.004 (oil of heterogeneity, ε ' and ε ' ' the value somewhat difference of oil.)
I.e. according to the corresponding additional attenuation amount model α of electromagnetic waveMagneticWith additional phase shift amount model βMagneticObtained parameter information with
Benchmark database, which is compared, can further obtain with the presence or absence of the oil that stays under water.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
- The oily detecting system 1. a kind of ocean based on sonar electromagnetism collaboration Detection Techniques is stayed under water, it is characterised in that：Including sonar electromagnetic radiation unit, sonar electromagnetic wave receiving unit, signal gathering unit, data analysis unit, control Unit and display unit；Wherein, the sonar electromagnetic radiation unit connection described control unit, it is used to believe to field emission sonar to be detected Number and electromagnetic wave signal；The sonar electromagnetic wave receiving unit connects the signal gathering unit；It is used to receive the sonar that region to be detected is returned Signal and electromagnetic wave signal；The signal gathering unit connects data analysis unit, and its Sonar Signal and electromagnetic wave signal for being used for receiving are carried out Signal Pretreatment；The data analysis unit connects described control unit, and the data analysis unit is used for sound after pretreatment in real time Signal and electromagnetic wave signal carry out analyzing and processing and obtained after the corresponding oily detection information that stays under water, and believe with default oil detection of staying under water The current region to be detected of judgement is compared with the presence or absence of the oil that stays under water in breath benchmark database；Wherein, the data analysis unit is included There are the acoustics for oily detection information analyzing and processing of staying under water and the coupled relation model of electromagnetism collaboration detection, and based on the coupling Close relational model and set up the oily detection information benchmark database that stays under water；The coupled relation model of the electromagnetism collaboration detection includes sound Detection model and electromagnetic surveying model：Described sonar contact model includes：(1), when sound wave is propagated in density for ρ medium with speed C, by the definition of acoustic impedance, basic model formula one can be obtained：Z=C ρ(2), assume that boat-carrying sonar launches sound wave to seabed, and by a kind of another medium of medium vertical incidence, obtain the sound of formula two Wave reflection coefficients R model：In formula two, Z0For the acoustic impedance C of seawater0ρ0, Z1For the acoustic impedance C for the oil that stays under water1ρ1, A is sonic wave amplitude, i.e. AIt is incident、AReflection The sonic wave amplitude that the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting are received；(3), the Bottom-Reflection-Loss BL models of the vertical incidence plane wave of formula three：BL=-20lg [(C1ρ1-C0ρ0)/(C1ρ1+C0ρ0)]In formula three, C0ρ0For the acoustic impedance of seawater, C1ρ1For the acoustic impedance for the oil that stays under water；(4), in view of sound wave is propagated in media as well to decay, the intensity of SATT is different in different medium, therefore, obtains Formula four, the attenuation coefficient α that sound wave is propagated in media as wellSoundModel：αSound=20lg (AReflection/AIt is incident)/2LIn formula four：AIt is incident、AReflectionThe sound wave that the sonic wave amplitude and sonar reception device of respectively sonar emitter transmitting are received Amplitude, L is the distance of detection；The electromagnetic wave detection model includes：According to the theory of Medium Wave Guide, electromagnetic wave attenuation constant α can obtainMagnetic, phase-shift constant βMagneticWith Electromagnetic Wave Propagation constant relationship Model：γ=αMagnetic+jβMagneticγ is plural number, by real part electromagnetic wave attenuation constant αMagneticWith imaginary part phase-shift constant βMagneticComposition, j represents imaginary part；Further obtain Electromagnetic Wave Propagation constant and ε ', ε ' ' relation：In formulaλ is free space wavelength, λcFor waveguide cut-off wavelength, ε ' represents the ability of the energy storage of material, ε ' ' represent the ability of material power consumption；Therefore it is respectively formula seven, formula to obtain electromagnetic wave by dielectric additional attenuation amount model and additional phase shift amount model Eight：Described control unit connects the display unit, is the control centre of whole device, is obtained in the data analysis unit Stay under water after oily detection information, the oily detection information that stays under water is sent to the display unit in real time and shown.
- The oily detecting system 2. ocean according to claim 1 is stayed under water, it is characterised in that：Described sonar electromagnetic radiation unit includes sonar emitter and electromagnetic wave launcher；The sonar transmitting dress Put using side scan sonar transmitting or multibeam sonar transmitting, the electromagnetic wave launcher is microwave launcher.
- The oily detecting system 3. ocean according to claim 1 is stayed under water, it is characterised in that：The data analysis unit includes being preinstalled with the coupled relation model of acoustics and electromagnetism collaboration detection, will after pretreatment Sonar Signal and electromagnetic wave signal according to the coupled relation model carry out data extraction and obtain it is corresponding stay under water oil detection The data extraction module of information and it is connected with the data extraction module, receives the oil detection of staying under water that data extraction module is obtained Analysis is compared after information with the oily detection information benchmark database that stays under water of internal preset, whether current region to be detected is judged In the presence of the comparative analysis module for the oil that stays under water.
- 4. a kind of oily detection method of staying under water based on system described in claim 1, it comprises the following steps：Step 1：Foundation is stayed under water oily detection information benchmark database：Oily detecting system is stayed under water in the absence of staying under water using the ocean The marine site of oil is detected, and data analysis unit is received after Sonar Signal and electromagnetic wave signal according to the acoustics and electromagnetism The coupled relation model of collaboration detection carries out data extraction and sets up the oily detection information benchmark database that stays under water；Step 2：In region to be detected, believed using sonar electromagnetic radiation unit to field emission sound wave to be detected and electromagnetic wave Number, and the sound wave and electromagnetic wave signal returned is received using sonar electromagnetic wave receiving unit；Entered by the signal gathering unit Data analysis unit is transferred to after row pretreatment；Step 3：Sonar Signal after pretreatment and electromagnetic wave signal are carried out analyzing and processing acquisition by data analysis unit in real time After the corresponding oily detection information that stays under water, judgement is compared with the default oily detection information benchmark database that stays under water current to be detected With the presence or absence of the oil that stays under water, and by the oily detection information that stays under water, transmission to the display unit is shown in real time in region.
- 5. oily detection method according to claim 4 of staying under water, it is characterised in that：Described sonar electromagnetic radiation unit includes sonar emitter and electromagnetic wave launcher；The sonar transmitting dress Put using side scan sonar transmitting or multibeam sonar transmitting, the electromagnetic wave launcher is microwave launcher.
- 6. oily detection method according to claim 4 of staying under water, it is characterised in that：The data analysis unit includes being preinstalled with the coupled relation model of acoustics and electromagnetism collaboration detection, will after pretreatment Sonar Signal and electromagnetic wave signal according to the coupled relation model carry out data extraction and obtain it is corresponding stay under water oil detection The data extraction module of information and it is connected with the data extraction module, receives the oil detection of staying under water that data extraction module is obtained Analysis is compared after information with the oily detection information benchmark database that stays under water of internal preset, whether current region to be detected is judged In the presence of the comparative analysis module for the oil that stays under water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401359.4A CN104991288B (en) | 2015-07-09 | 2015-07-09 | It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system and method based on sonar electromagnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401359.4A CN104991288B (en) | 2015-07-09 | 2015-07-09 | It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system and method based on sonar electromagnetism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104991288A CN104991288A (en) | 2015-10-21 |
| CN104991288B true CN104991288B (en) | 2017-09-19 |
Family
ID=54303124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510401359.4A Active CN104991288B (en) | 2015-07-09 | 2015-07-09 | It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system and method based on sonar electromagnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104991288B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093955A (en) * | 2016-07-12 | 2016-11-09 | 李颖 | A kind of stay under water oil apparatus and method based on microwave modulation laser acquisition |
| CN106802419B (en) * | 2017-01-23 | 2019-10-08 | 中海石油环保服务（天津）有限公司 | It is a kind of that oily recognition methods and system are sunk to the bottom based on sonar image feature |
| CN106897687A (en) * | 2017-02-21 | 2017-06-27 | 中海石油环保服务（天津）有限公司 | A kind of oil-containing deposit automatic identifying method and system based on sonar technique |
| CN109375198B (en) * | 2018-12-10 | 2022-04-29 | 哈尔滨工程大学 | Low-frequency sonar array impedance characteristic calibration method |
| CN109615845B (en) * | 2018-12-24 | 2022-07-29 | 中国船舶重工集团公司第七一九研究所 | Acoustic-electromagnetic integrated detection and communication integrated cable array |
| CN117849882B (en) * | 2023-12-28 | 2024-06-18 | 山东科技大学 | Submerged oil detection method based on sound vortex technology |
| CN117554966B (en) * | 2024-01-12 | 2024-03-19 | 哈船通航(三亚)技术服务合伙企业(有限合伙) | Sonar data intelligent processing method for accurate positioning of whole water area |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508946A (en) * | 2011-10-10 | 2012-06-20 | 江苏科技大学 | Method for simulating spilled oil sea surface under finite water depth |
| CN102663233A (en) * | 2012-03-16 | 2012-09-12 | 江苏科技大学 | Method for calculating electromagnetic scattering of oil spilled sea |
| CN103424753A (en) * | 2013-09-02 | 2013-12-04 | 中国科学院上海天文台 | Remote sensing monitoring system for sea surface oil spillage and suspended solids and monitoring method thereof |
-
2015
- 2015-07-09 CN CN201510401359.4A patent/CN104991288B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508946A (en) * | 2011-10-10 | 2012-06-20 | 江苏科技大学 | Method for simulating spilled oil sea surface under finite water depth |
| CN102663233A (en) * | 2012-03-16 | 2012-09-12 | 江苏科技大学 | Method for calculating electromagnetic scattering of oil spilled sea |
| CN103424753A (en) * | 2013-09-02 | 2013-12-04 | 中国科学院上海天文台 | Remote sensing monitoring system for sea surface oil spillage and suspended solids and monitoring method thereof |
Non-Patent Citations (2)
| Title |
|---|
| Oil spill detection by satellite remote sensing;Camilla Brekke 等;《Remote Sensing of Environment》;20051231;第1-13页 * |
| 基于遥感的海洋溢油监测方法;胡佳臣 等;《环境保护科学》;20140228;第40卷(第1期);第68-73页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104991288A (en) | 2015-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104991288B (en) | It is a kind of to cooperate with the ocean of Detection Techniques to stay under water oily detecting system and method based on sonar electromagnetism | |
| DK177603B1 (en) | Electromagnetic marine exploration for low water hydrocarbons | |
| US20060091889A1 (en) | Method and apparatus for determining the nature of subterranean reservoirs | |
| GB2441786A (en) | Combined electromagnetic and seismic surveying | |
| Waarum et al. | CCS leakage detection technology-industry needs, government regulations, and sensor performance | |
| CN204731434U (en) | Stay under water oily pick-up unit in a kind of ocean of working in coordination with Detection Techniques based on sonar electromagnetism | |
| Lawrence et al. | Hydroacoustic monitoring system for the comprehensive nuclear-Test-Ban treaty | |
| Chou et al. | Seafloor characterization in the southernmost Okinawa Trough from underwater optical imagery. | |
| Qin et al. | Sound propagation from the shelfbreak to deep water? | |
| Asakawa et al. | Multi-stage seismic survey for Seafloor Massive Sulphide (SMS) exploration | |
| Li et al. | M 2 FNet: Multi-modal Fusion Network for Airport Runway Subsurface Defect Detection using GPR Data | |
| Qin et al. | Profiling experiment of a lake using ground penetrating radar | |
| Li et al. | Sunken oil detection and classification using MBES backscatter data | |
| Asakawa et al. | New seismic survey techniques for seafloor massive sulphide (SMS) exploration | |
| Chotiros et al. | Refraction and scattering into a sandy ocean sediment in the 30-40-kHz band | |
| Zhang et al. | Simulation of ship radiated noise field in deep sea based on statistical characteristics of sound source | |
| Wang et al. | An introduction to the national energy program—Gas hydrate exploration in Taiwan | |
| Chen et al. | Towards spatial and semantic mapping in aquatic environments | |
| Peng et al. | Fracture prediction and its fluid identification of complex carbonate reservoir: A case study in Ha7 area, Tarim Basin | |
| Kjølhamar et al. | Deepsea massive sulfides: What geophysical tools and environmental surveying should be needed and be cost-effective | |
| Kikawa et al. | A new integrated technique to remotely detect deep sea polymetallic sulfide | |
| Ringrose et al. | Next generation geophysical sensing: exploring a new wave of geophysical technologies for the energy transition | |
| Rauf et al. | Prediction of double stacking hydrocarbon using Marine Controlled Source Electromagnetic method | |
| MacGlennon et al. | Assessing peak particle velocity PPV and air pressure disturbance from marine seismic operations–introducing a method for establishing coastal environmental safety distances | |
| Imani | Comprehensive Full-Depth Condition Assessment of Reinforced Concrete Bridge Decks Using Ground Penetrating Radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |