CN109342569A - A kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method - Google Patents
A kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method Download PDFInfo
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- CN109342569A CN109342569A CN201811182726.6A CN201811182726A CN109342569A CN 109342569 A CN109342569 A CN 109342569A CN 201811182726 A CN201811182726 A CN 201811182726A CN 109342569 A CN109342569 A CN 109342569A
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- navigation channel
- channel slope
- seabed
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- time monitoring
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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
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
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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
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
Abstract
The present invention discloses a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method, its step is included in channel edge and lays buoy; acoustic profile detection system is installed on buoy; acoustic profile detection system penetrates seabed navigation channel slope sedimentary to seabed transmitting sound wave; reception system is by seabed acoustic receiver and is converted to sedimentary section acoustic picture; is transferred to monitoring center for acoustic picture signal is deposited by Transmission system; after the sound spectrogram that monitoring center carrys out transmission is handled, carries out Real Time Monitoring to navigation channel slope stability.A kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method provided by the invention does not influence ship normal operation, realizes round-the-clock real-time monitoring.
Description
Technical field
The invention belongs to marine monitoring technology fields, are related to a kind of Muddy Bottoms seabed navigation channel slope real-time monitoring of stability side
Method.
Background technique
Muddy Bottoms seabed navigation channel stability failure and slide is a kind of tune naturally that stable state is acquired on hand excavation navigation channel slope itself
It is had suffered journey, even if the gradient is very slow, when slope angle is less than 1 °, navigation channel may also generate stability failure and slide, and bear away geometry, lead
Harbour blocking is caused, great economy and society is caused to lose.According to general full water and soil body movement mechanism and deformation extent and movement
State, slope soil stability failure and slide can be divided into creep, sliding and flowing three classes.Creep refers to that slope is issued in certain external force
Life is slow, continues, long-term irreversible deformation, but not yet occurs significantly to be displaced on the whole, is that seabed navigation channel slope is inclined to
The prelude destroyed.Sliding refers to that the unstability soil body does bulk movement on submarine slope.Flowing refers to that the unstability soil body collapses completely
Solution forms fluid and moves on submarine slope.
Since there is Muddy Bottoms sea area seawater good electric conductivity, extremely strong heat absorption capacity and very poor translucency to make thunder
Reach, metascope, satellite remote sensing technology etc. it is helpless dependent on laser, the Detection Techniques of Electromagnetic Wave Propagation, can not be right
Submarine sedimentary strata is efficiently detected, simultaneously because the more inaccessibility seabed of people, especially under severe sea situation, to Muddy Bottoms
The monitoring of seabed navigation channel stability failure and slide lacks always effective method, and the overwhelming majority is afterwards by means of the method for depth measurement or more
The method of velocity of wave scanning checks slump situation.
Sound wave stronger penetration capacity and relatively small decaying in solid and liquid detect it in bottom sediment
In played important function, principle is to emit sound wave to seabed using acoustic transducer, and ping passes through seawater and touches seabed
After, part sound energy reflection returns to energy converter, and another part sound can continue to propagate to sedimentary depths, while return back successively
Wave, until acoustic wave energy loss exhausts, the variation of deposit interior tissue generates certain influence to the propagation of sound wave, when
When the factors such as ingredient, structure and the density of deposit change, spread speed, energy attenuation and spectrum component of sound wave etc.
It can occur to change accordingly, passing through observational record and analyzing submarine sedimentary strata will be seen that deposition physical property to the differential responses of sound wave
Energy and structure change.For same bottom sediment in the differently strained stage, the velocity of sound has the feature significantly changed with stress, boat
For road deposit within the different growth cycles of its stability failure and slide, physical behavior is different, also different to the response of the velocity of sound, makes
Must have using acoustic method monitoring seabed navigation channel slope stability may.
Currently, the monitoring analysis to seabed navigation channel slope stability is broadly divided into direct method and indirect method.Direct method is logical
It crosses and takes navigation channel slope deposit in its physical property of lab analysis, but Muddy Bottoms seabed navigation channel water content in sediment is high, adopts
The reset condition of deposit will necessarily be destroyed when taking navigation channel slope sediment sample extremely difficult, and sampling, even if scene is surveyed
Amount is also laborious time-consuming, it is difficult to accomplish that real-time dynamicly Slope Stability is analyzed.Indirect method is installed shallowly using surveying vessel
The detection systems such as stratigraphic section detect navigation channel, analyze navigation channel slope stability according to acoustic picture, to realize continuous prison
It surveys, needs surveying vessel repeatedly to detect to navigation channel, thus will affect the normal operation in navigation channel, in special weather, especially
It is to also limit detection of sailing under the adverse circumstances such as high sea.
Summary of the invention
Existing deficiency is analyzed to seabed navigation channel slope STABILITY MONITORING based on existing method, the present invention proposes a kind of mud
Matter seabed navigation channel slope stability real-time monitoring method, this method utilize buoyage, navigation channel slope Acoustic Sounding Systems, sound spectrogram
Image delivering system and monitoring system are realized to Muddy Bottoms seabed navigation channel slope real-time monitoring of stability.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method, which comprises the steps of:
A, it chooses navigation channel slope and lays fixed point buoy；
B, acoustic profile detection system is installed on buoy；
C, acoustic profile detection system is measured in real time seabed navigation channel slope sedimentary, and obtains its acoustics map；
D, acoustics map is real-time transmitted to by monitoring center by wireless transmitting system；
E, after monitoring center is to the processing of acoustics map, real-time monitoring navigation channel slope stable state.
Further, the method includes buoyage, navigation channel slope Acoustic Sounding Systems, sound spectrogram image delivering system,
Monitoring system and image processing system.
Further, buoyage include fixed system, GPS positioning system, solar electric power supply system, collision avoidance system,
Light warning system.
Further, navigation channel slope detection system uses the narrow wave sub-bottom profiler system of parametric array, including host, energy converter
And motion sensor obtains navigation channel sound spectrogram image, grayscale mode can be used in sound spectrogram for detecting navigation channel sedimentary information.
Further, the sound spectrogram image delivering system is used to sound spectrogram image information be transmitted to monitoring center image procossing
Seashore wireless transmission, mobile phone, iridium satellite can be used in system.
Further, image processing system handles the deposition acoustics map received, including image registration, gray scale
Change processing and vocal print threshold value.
Further, solar electric power supply system, including solar panel, battery group, solar controller and inversion
Device, solar panel are installed on the outside of floating body, are located at 4 orientation, and Omnibearing absorbing solar energy is simultaneously converted into electric energy.
Further, fixed system includes floating body, tail pipe, instrument stan and bracket, anchorage equipment, the bracket installation sensing
Device and antenna, including satellite communication machine, VHF radio antenna, GPRS antenna, GPS antenna.
Further, the specific method of described image processing system includes carrying out at gray processing to navigation channel deposition acoustic picture
Reason chooses one width acoustic picture of navigation channel as background image, and then sequence image and background image subtraction thereafter, analysis is each
Subtract each other the variation characteristic and change rate of rear image, real-time monitoring navigation channel slope stable state.
Compared with prior art, the invention has the following advantages:
The present invention is realized by buoyage, navigation channel slope Acoustic Sounding Systems, sound spectrogram image delivering system and monitoring system
Muddy Bottoms seabed navigation channel slope stability continuously, efficiently and in real time detect, does not influence navigation channel ship normal operation, it is real
Existing conventional manual's investigation is difficult to the difficulty of accurate measurements, can supervise in real time especially under the bad weathers such as storm tide, high sea
Seabed navigation channel slope stability is surveyed, round-the-clock real-time monitoring is realized.
Maximum innovative point of the invention is will to pinpoint buoyage and navigation channel slope Acoustic Sounding Systems, sound spectrogram image transmitting system
System and monitoring system connect, and deposit acoustics map by obtaining round-the-clock navigation channel slope, according to deposition acoustics map variation
The deformation of seabed navigation channel slope deposit internal structure is prejudged, is realized to Muddy Bottoms seabed navigation channel slope stability real-time detection.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples:
As shown in Figure 1, a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method, which is characterized in that including walking as follows
It is rapid:
A, it chooses navigation channel slope and lays fixed point buoy；
B, acoustic profile detection system is installed on buoy；
C, acoustic profile detection system is measured in real time seabed navigation channel slope sedimentary, and obtains its acoustics map；
D, acoustics map is real-time transmitted to by monitoring center by wireless transmitting system；
E, after monitoring center is to the processing of acoustics map, real-time monitoring navigation channel slope stable state.
Further, the method includes buoyage, navigation channel slope Acoustic Sounding Systems, sound spectrogram image delivering system,
Monitoring system and image processing system.
Further, buoyage include fixed system, GPS positioning system, solar electric power supply system, collision avoidance system,
Light warning system.
Further, navigation channel slope detection system uses the narrow wave sub-bottom profiler system of parametric array, including host, energy converter
And motion sensor obtains navigation channel sound spectrogram image, grayscale mode can be used in sound spectrogram for detecting navigation channel sedimentary information.
Further, the sound spectrogram image delivering system is used to sound spectrogram image information be transmitted to monitoring center image procossing
Seashore wireless transmission, mobile phone, iridium satellite can be used in system.
Further, image processing system handles the deposition acoustics map received, including image registration, gray scale
Change processing and vocal print threshold value.
Further, solar electric power supply system, including solar panel, battery group, solar controller and inversion
Device, solar panel are installed on the outside of floating body, are located at 4 orientation, and Omnibearing absorbing solar energy is simultaneously converted into electric energy.
Further, fixed system includes floating body, tail pipe, instrument stan and bracket, anchorage equipment, the bracket installation sensing
Device and antenna, including satellite communication machine, VHF radio antenna, GPRS antenna, GPS antenna.
Further, the specific method of described image processing system includes carrying out at gray processing to navigation channel deposition acoustic picture
Reason chooses one width acoustic picture of navigation channel as background image, and then sequence image and background image subtraction thereafter, analysis is each
Subtract each other the variation characteristic and change rate of rear image, real-time monitoring navigation channel slope stable state.
Embodiment:
A, according to navigation channel slope sedimentary, slope angle situation, fixed point buoy is laid.Buoyage includes floating body, tail pipe, GPS positioning
System, remote transmission instrument, solar electric power supply system, collision avoidance system, light warning system, instrument stan and bracket, anchorage are set
Standby composition, solar electric power supply system includes solar panel, battery group, solar controller and inverter, solar-electricity
Pond plate is installed on the outside of floating body, is located at 4 orientation, and Omnibearing absorbing solar energy is simultaneously converted into electric energy.Bracket install sensor and
Antenna has satellite communication machine, VHF radio antenna, GPRS antenna, GPS antenna.
B, parametric array narrow wave sub-bottom profiler system is installed on buoy.Sub-bottom profiler system include host, energy converter and
Motion sensor.
C, the narrow wave sub-bottom profiler system of parametric array is measured in real time navigation channel slope sedimentary, and parameter array transducer exists
It is used as dominant frequency to the close high frequency sound wave signal (f1, f2) of two frequencies of water-bed transmitting simultaneously under high pressure, sound wave is in an aqueous medium
Difference frequency wave, such as f1, f2, (f1+f2), (f1-f2), 2f1,2f2 sound wave letter are formed when propagation due to nonlinear effect
Number, because the frequency of f1, f2 are very close, so the frequency of difference frequency (f1-f2) is very low, there is very strong sedimentary penetration power,
Difference frequency acoustic signals and field angle when high frequency are very close, and do not have secondary lobe, and beam direction is good, resolution with higher
Rate obtains it and deposits acoustics map convenient for the identification to sedimentary.
D, deposition acoustics map is real-time transmitted to by Transmission system by monitoring center, it is wireless that seashore can be used in Transmission system
Transmission, mobile phone or iridium satellite.
E, monitoring center has reception system, image processing system, and image processing system is to the deposition acoustics map received
It is handled, including image registration, gray processing processing and vocal print threshold value.Specific method includes, to navigation channel deposit acoustic picture into
The processing of row gray processing chooses one width acoustic picture of navigation channel as background image, then sequence image and background image thereafter
Subtract each other, the variation characteristic and change rate of rear image, real-time monitoring navigation channel slope stable state are respectively subtracted each other in analysis.
The present invention is difficult to sample and cannot continuously obtain reality using ship progress acoustic sounding is surveyed for seabed navigation channel deposit
When observe the defects of data, provide it is a kind of will fixed point buoyage and navigation channel slope Acoustic Sounding Systems, sound spectrogram image transmitting system
System and monitoring system join together to realize to the round-the-clock method of real-time of navigation channel slope stability.
The above description is merely a specific embodiment, but the protection scope invented is not limited thereto, any ripe
Know those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover
Within the protection scope of invention.
Claims (9)
1. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method, which comprises the steps of:
A, it chooses navigation channel slope and lays fixed point buoy；
B, acoustic profile detection system is installed on buoy；
C, acoustic profile detection system is measured in real time seabed navigation channel slope sedimentary, and obtains its acoustics map；
D, acoustics map is real-time transmitted to by monitoring center by wireless transmitting system；
E, after monitoring center is to the processing of acoustics map, real-time monitoring navigation channel slope stable state.
2. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 1, it is characterised in that:
The method includes buoyage, navigation channel slope acoustic profile detection system, sound spectrogram image delivering system, monitoring system and images
Processing system.
3. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 2, it is characterised in that:
Buoyage includes fixed system, GPS positioning system, solar electric power supply system, collision avoidance system, light warning system.
4. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 2, it is characterised in that:
Navigation channel slope detection system uses the narrow wave sub-bottom profiler system of parametric array, including host, energy converter and motion sensor, is used for
Navigation channel sedimentary information is detected, navigation channel sound spectrogram image is obtained, grayscale mode can be used in sound spectrogram.
5. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 2, it is characterised in that:
The sound spectrogram image delivering system is used to sound spectrogram image information be transmitted to monitoring center image processing system, can be used seashore without
Line transmission, mobile phone, iridium satellite.
6. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 2, it is characterised in that:
Image processing system handles the deposition acoustics map received, including image registration, gray processing processing and vocal print threshold value.
7. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 3, it is characterised in that:
Solar electric power supply system, including solar panel, battery group, solar controller and inverter, solar panel peace
Loaded on the outside of floating body, it is located at 4 orientation, Omnibearing absorbing solar energy is simultaneously converted into electric energy.
8. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 3, it is characterised in that:
Fixed system includes floating body, tail pipe, instrument stan and bracket, anchorage equipment, and the bracket installs sensor and antenna, including satellite
Communication device, VHF radio antenna, GPRS antenna, GPS antenna.
9. a kind of Muddy Bottoms seabed navigation channel slope stability real-time monitoring method according to claim 6, it is characterised in that:
The specific method of described image processing system includes carrying out gray processing processing to navigation channel deposition acoustic picture, chooses navigation channel one
Width acoustic picture is as background image, and then sequence image and background image subtraction thereafter, rear image is respectively subtracted each other in analysis
Variation characteristic and change rate, real-time monitoring navigation channel slope stable state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811182726.6A CN109342569B (en) | 2018-10-11 | 2018-10-11 | Method for monitoring stability of silt submarine channel slope in real time |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811182726.6A CN109342569B (en) | 2018-10-11 | 2018-10-11 | Method for monitoring stability of silt submarine channel slope in real time |
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| CN111895939A (en) * | 2020-06-30 | 2020-11-06 | 河海大学 | Underwater landslide mass deformation monitoring device and method based on multi-source sonar positioning |
| WO2022217722A1 (en) * | 2021-04-15 | 2022-10-20 | 中国地质大学（武汉） | Array-type underwater deformation monitoring apparatus and monitoring method for reservoir landslide |
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| CN109342569B (en) | 2021-04-20 |
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