CN207895085U - A kind of seismic survey system based on underwater movable platform - Google Patents
A kind of seismic survey system based on underwater movable platform Download PDFInfo
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- CN207895085U CN207895085U CN201721865398.0U CN201721865398U CN207895085U CN 207895085 U CN207895085 U CN 207895085U CN 201721865398 U CN201721865398 U CN 201721865398U CN 207895085 U CN207895085 U CN 207895085U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The utility model discloses a kind of seismic survey systems based on underwater movable platform.The system includes：External hanging type electronic compartment, circuit integrating device, underwater movable platform, carry mechanism, multi-electrode transmitting array and multichannel hydrophone linear array；External hanging type electronic compartment is fixed on by the way that carry mechanism is plug-in on underwater movable platform, and circuit integrating device is arranged in external hanging type electronic compartment, and circuit integrating device is connect with multi-electrode transmitting array, and multi-electrode transmitting array is connect with multichannel hydrophone linear array；Circuit integrating device includes that multi channel underwater data acquisition device, sound source host, photoelectricity are plugged into box and battery pack, multi channel underwater data acquisition device is connect with sound source host, photoelectricity plug into box respectively with multi channel underwater data acquisition device, sound source host, battery pack and multi-electrode transmitting array connect.The utility model can avoid significantly decaying of the big depth seawater to sound wave, improve seismic survey resolution ratio, increase stratum penetration depth, improve surveying accuracy.
Description
Technical field
The utility model is related to geophysical exploration technique for investigation fields, and underwater movable platform is based on more particularly to one kind
Seismic survey system.
Background technology
Conventional marine seismic exploration is typically to pull source emission battle array and hydrophone towed array in sea with research vessel
The sound wave in face, source emission is propagated by seawater and is received by hydrophone array after sub-bottom reflection and acquired, by further counting
It calculates, analyze and determine seabottom geology situation at figure.This common seismic detection mode is when deep-sea marine site works, due to seawater pair
The significantly decaying of sound wave (especially high frequency sound wave), detection resolution and penetration depth of the common seismic equipment to deep-sea stratum
It reduces, causes surveying accuracy not high.
Invention content
Based on this, it is necessary to provide a kind of seismic survey system based on underwater movable platform that can improve surveying accuracy.
To achieve the above object, the utility model provides following scheme：
A kind of seismic survey system based on underwater movable platform, including：External hanging type electronic compartment, circuit integrating device, water
Lower mobile platform, carry mechanism, multi-electrode transmitting array and multichannel hydrophone linear array；
The external hanging type electronic compartment is fixed on by the way that the carry mechanism is plug-in on the underwater movable platform, the circuit
Integrating device is arranged in the external hanging type electronic compartment, and the circuit integrating device is connect with multi-electrode transmitting array, institute
Multi-electrode transmitting array is stated to connect with the multichannel hydrophone linear array；
The circuit integrating device includes that multi channel underwater data acquisition device, sound source host, photoelectricity are plugged into box and battery
Group, the multi channel underwater data acquisition device are connect with the sound source host, the photoelectricity plug into box respectively with it is described mostly logical
Road Underwater Acoustic Data Acquisition device, the sound source host, the battery pack and multi-electrode transmitting array connection, it is described mostly logical
Road Underwater Acoustic Data Acquisition device is for acquiring the underwater sound data that the multichannel hydrophone linear array receives, the sound source host
Emit array discharge excitation sound wave for controlling the multi-electrode, the photoelectricity plugs into box for the optical signal or electricity to receiving
Signal transfer and be managed to the battery pack.
Optionally, the system also includes photoelectric compound cable, the circuit integrating device passes through the photoelectricity compound electric
Cable is connect with multi-electrode transmitting array, and the photoelectric compound cable passes through multi-electrode transmitting array and the multichannel
Hydrophone linear array connects.
Optionally, the system also includes tail portion hitch bar, one end of the tail portion hitch bar is flat with the underwater movement
The tail portion of platform is fixedly connected, and the other end and the photoelectric compound cable of the tail portion hitch bar mount, the tail portion hitch bar
For bearing the photoelectric compound cable during the underwater movable platform navigates by water, the multi-electrode emits array and described
The towing pulling force of multichannel hydrophone linear array.
Optionally, the multi channel underwater data acquisition device includes：
Microprocessor, logic controller, fiber count pass interface, peripheral sensor, built in test device, Clock management mould
Block, sound source host interface, Ethernet interface and memory management module；
The microprocessor respectively with the underwater movable platform, logic controller, the peripheral sensor, described
Sound source host interface is connected with the Ethernet interface, and the sound source host interface is connect with the sound source host, micro- place
Reason device is used to parameter preset being sent to the logic controller and the multichannel hydrophone linear array, while by trigger signal
It is sent to the sound source host and the multichannel hydrophone linear array, the peripheral sensor data received are sent to
The Logic control module, and the data that logic controller described in real-time reception is sent, by Ethernet interface by the data
Transmission in real time, the parameter preset include that default use is spaced, presets sample rate and preset recording length；
The logic controller passes interface, the built in test device, the Clock management mould with the fiber count respectively
Block is connected with the memory management module, and the fiber count passes interface and the photoelectricity box of plugging into and connect, the logic controller
The seismic data sent for receiving the multichannel hydrophone linear array, parses the seismic data, after parsing
Seismic data be sent to microprocessor module and the memory management module in real time；
The fiber count passes interface for carrying out opto-electronic conversion；
The peripheral sensor includes depth transducer, height sensor, temperature sensor and attitude transducer；
The built in test module for monitoring and testing in real time；
The Clock management module uses the clock source of High Precision Crystal Oscillator or atomic clock as system；
The sound source host interface is used to export start pulse signal to the sound source host and to the sound source host
Carry out excitation energy parameter setting；
The Ethernet interface is used to connect the control device of upper level；
The memory management module is used for the seismic data after storing and resolving.
Optionally, the sound source host includes：
Central controller, boosting rectifier charging circuit, energy capacitance set, total solids discharge switch and with the center
Charging control circuit that controller is all connected with, sample circuit, discharge switch control circuit, serial line interface, Phototube Coupling interface；
The energy capacitance set respectively with the boosting rectifier charging circuit, the total solids discharge switch and described adopt
Sample circuit connects, and the boosting rectifier charging circuit is connect with the charging control circuit, the total solids discharge switch and institute
State the connection of discharge switch control circuit, the total solids discharge switch connects the photoelectricity and plugs into box, the serial line interface and institute
State the described multi channel underwater data acquisition device connection of Phototube Coupling interface；
The central controller is started to charge up or is terminated described in charging and control for controlling the charging control circuit
Discharge switch control circuit is closed；
The boosting rectifier charging circuit, for charging to the energy capacitance set；
The energy capacitance set is made of multiple pulse storage capacitors；
The total solids discharge switch for realizing the energy capacitance set pulse repid discharge；
The charging control circuit is used for the order according to the central controller, starts or stop charging；
The sample circuit is used to carry out partial pressure sampling to the voltage of the energy capacitance set, obtains capacitance voltage value, and
The capacitance voltage value is sent to the central controller；
The discharge switch control circuit, for controlling the energy capacitance set electric energy release；
The serial line interface is for the communication between the sound source host and the multi channel underwater data acquisition device；
The Phototube Coupling interface for receiving outer triggering signal, and by the outer triggering signal be sent to it is described in
Entreat controller；
The radio network interface is used to receive the sound source parameter of user setting, and the sound source parameter is sent to described
Central controller, the sound source parameter include excitation energy, operating mode, excitation interval and operating schedule, the wireless network
Network interface is blue tooth interface or WIFI interface.
Optionally, multi-electrode transmitting array include high-field electrode array, it is metal framework, entrant sound pressure resistance bucket, first floating
Power column, the second buoyancy column, high pressure interconnecting device and electrolyte solution；
The electrolyte solution is full of in the entrant sound pressure resistance bucket, and the high-field electrode array, the metal framework are equal
It is immersed in the electrolyte solution, the high pressure interconnecting device is located at the top of the entrant sound pressure resistance bucket, the first buoyancy column
Positioned at the head end of the entrant sound pressure resistance bucket, the second buoyancy column is located at the tail end of the entrant sound pressure resistance bucket, first buoyancy
Column and the second buoyancy column are fixedly connected with the entrant sound pressure resistance bucket, and the high-field electrode array connects with high potential electric wire
It connects, the metal framework is connect with zero potential electric wire；
The high-field electrode array includes multiple high-voltage discharging electrodes, the electric discharge for emitting array as the multi-electrode
High-voltage potential；
The metal framework is used to emit as the multi-electrode zero potential of the electric discharge of array；
The entrant sound pressure resistance bucket makes the high-field electrode array and the metal framework for completely cutting off deep water high static pressure environment
In atmospheric pressure environment；
The first buoyancy column and the second buoyancy column are used to offset the high-field electrode array and the metal frame
The weight of frame；
The electrolyte solution is used to emit as the multi-electrode electric discharge between the high-voltage potential and zero potential of array
Channel；
The high pressure interconnecting device is for high pressure of transferring.
Optionally, the multichannel hydrophone linear array include opto-electronic conversion packet, preceding stretch section, active section, digital packets and
Stretch section afterwards；
The optoelectronic composite cable is connect by the opto-electronic conversion packet with the preceding stretch section, and the preceding stretch section passes through institute
It states digital packets to connect with the active section, be connected by the digital packets between multiple active sections, the active section passes through
The digital packets are connect with the rear stretch section；
The opto-electronic conversion packet is used to believe the collected seismic data of the multichannel hydrophone linear array and its state
Breath is converted to fiber-optic signal, and multi channel underwater data acquisition device is sent to the control of the multichannel hydrophone linear array
Information is converted to electric signal；
The preceding stretch section is used to be isolated the underwater movable platform and the machinery of multi-electrode transmitting array generation shakes
It is dynamic；
The active section includes multiple hydrophones, and simulation is converted to for acquiring underwater sound signal, and by the underwater sound signal
Electric signal；
The digital packets are used to the analog electrical signal being converted to digital electric signal；
Stretch section is used for isolated tail noise after described.
Optionally, the material of the entrant sound pressure resistance bucket is carbon fibre material.
Optionally, the material of the first buoyancy column and the second buoyancy column is glass microballoon buoyant material.
Optionally, the multichannel hydrophone linear array further includes drag parachute, and the drag parachute connects with the rear stretch section
It connects, the posture for keeping the multichannel hydrophone linear array.
Optionally, the external hanging type electronic compartment is connect by watertight with the underwater movable platform, the optoelectronic composite cable
Plug-in unit connects.
Compared with prior art, the utility model has the beneficial effects that：
The utility model proposes a kind of seismic survey systems based on underwater movable platform, and the system comprises external hanging types
Electronic compartment, circuit integrating device, underwater movable platform, carry mechanism, multi-electrode transmitting array and multichannel hydrophone linear array；
External hanging type electronic compartment is fixed on by the way that the carry mechanism is plug-in on underwater movable platform, and circuit integrating device is arranged in external hanging type
In electronic compartment, circuit integrating device is connect with multi-electrode transmitting array, and multi-electrode emits array and multichannel hydrophone linear array
Connection；Circuit integrating device includes that multi channel underwater data acquisition device, sound source host, photoelectricity are plugged into box and battery pack, mostly logical
Road Underwater Acoustic Data Acquisition device is connect with sound source host, photoelectricity plug into box respectively with multi channel underwater data acquisition device, sound source
Host, battery pack and multi-electrode transmitting array connection.The seismic survey system, it may be convenient to be applied to underwater mobile flat
Platform, since sound source near Sea Bottom pulls, compared to sea sound source, avoids big depth when deep-sea marine site carries out seismic survey operation
Significantly decaying of the seawater to sound wave (especially high frequency sound wave) is spent, seismic survey resolution ratio is improved, increases stratum and penetrate
Depth, and then improve surveying accuracy；And multi-electrode emits array towing in underwater research vehicle rear, reduces source emission
Vibration and interference to the vehicle in underwater movable platform, can emit the sound wave of tall and big sound source level.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the seismic survey system based on underwater movable platform of the utility model embodiment；
Fig. 2 is a kind of system block diagram of the seismic survey system based on underwater movable platform of the utility model embodiment；
Fig. 3 is multi channel underwater number in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
According to the structure diagram of harvester；
Fig. 4 is the knot of sound source host in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
Structure block diagram；
Fig. 5 is multi-electrode transmitting row in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
The structural schematic diagram of battle array；
Fig. 6 is multichannel hydrophone in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
The structural schematic diagram of linear array.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
Fig. 1 is a kind of seismic survey system based on underwater movable platform of the utility model embodiment, and Fig. 2 is that this practicality is new
A kind of system block diagram of the seismic survey system based on underwater movable platform of type embodiment.
Referring to Fig. 1 and Fig. 2, the seismic survey system based on underwater movable platform of embodiment, including：
External hanging type electronic compartment 1, circuit integrating device, underwater movable platform 2, carry mechanism 3, multi-electrode transmitting array 4, more
Channel hydrophone linear array 5, photoelectric compound cable 6 and tail portion hitch bar 7.
The external hanging type electronic compartment 1 is fixed on by the way that the carry mechanism 3 is plug-in on the underwater movable platform 2, described
Circuit integrating device be arranged in the external hanging type electronic compartment 1, the circuit integrating device by the photoelectric compound cable 6 with
The multi-electrode transmitting array 4 connects, and the multi-electrode transmitting array 4 passes through the photoelectric compound cable 6 and the multichannel
Hydrophone linear array 5 connects, and the tail portion of mobile platform 2 is provided with L-shaped or the Z-shaped tail portion hitch bar 7, the tail portion under water
One end of mounting 7 is fixedly connected with the tail portion of the underwater movable platform 2, the other end and the light of the tail portion hitch bar 7
Electric composite cable 6 mounts, and the tail portion hitch bar 7 is compound for the photoelectricity during bearing the underwater movable platform navigation
The towing pulling force of cable 6, multi-electrode transmitting array 4 and the multichannel hydrophone linear array 5.
The underwater movable platform 2 includes autonomous control device, navigates by water controller, load controller and payload interface, described
The payload interface of underwater movable platform 2 is connect by underwater electrical connector with the circuit integrating device, the underwater movable platform 2
Can be a plurality of types of underwater research vehicles, device, remotely pilotless submersible, underwater glider etc. for example, autonomous underwater is dived.It is described
When underwater movable platform 2 navigates by water under water, the multichannel hydrophone linear array 5 is towed in the underwater movable platform 2
Tail portion, the multichannel hydrophone linear array 5 is at nearly horizontality.
The circuit integrating device includes that multi channel underwater data acquisition device, sound source host, photoelectricity are plugged into box and battery
Group, the multi channel underwater data acquisition device are connect with the sound source host, the photoelectricity plug into box respectively with it is described mostly logical
Road Underwater Acoustic Data Acquisition device, the sound source host, the battery pack and multi-electrode transmitting array 4 connect, described more
Channel Underwater Acoustic Data Acquisition device is for acquiring the underwater sound data that the multichannel hydrophone linear array 5 receives, the sound source
Host plugs into box for believing the light received for controlling the multi-electrode transmitting 4 discharge excitation sound wave of array, the photoelectricity
Number or electric signal carry out transfer and the battery pack is managed.
Fig. 3 is multi channel underwater number in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
According to the structure diagram of harvester.
Referring to Fig. 3, the multi channel underwater data acquisition device includes：Microprocessor, logic controller, fiber count biography connect
Mouth, peripheral sensor, built in test device, Clock management module, sound source host interface, Ethernet interface and storage management mould
Block.
The microprocessor be the multi channel underwater data acquisition device core, the microprocessor respectively with it is described
Underwater movable platform 2, the logic controller, the peripheral sensor, the sound source host interface and the Ethernet interface
Connection, the sound source host interface are connect with the sound source host, and the microprocessor is used for the parameter preset of user configuration
It is sent to the logic controller and the multichannel hydrophone linear array 5, while trigger signal is sent to the sound source master
Machine and the multichannel hydrophone linear array 5, the parameter preset include default using interval, default sample rate and default note
Record length；The peripheral sensor data received are sent to the Logic control module, and logic described in real-time reception
The data that controller is sent；The data are sent in real time by Ethernet interface.
The logic controller passes interface, the built in test device, the Clock management mould with the fiber count respectively
Block is connected with the memory management module, and the fiber count passes interface and the photoelectricity box of plugging into and connect, the logic controller
The seismic data sent for receiving the multichannel hydrophone linear array 5；The seismic data is parsed, parsing includes
Data check, rearrangement, the identifying processing work of part control information；On the one hand seismic data after parsing is sent in real time micro-
On the other hand processor module is sent to memory management module and carries out local datastore.
The fiber count passes interface for carrying out opto-electronic conversion, the order data of downlink is converted to optical signal, by uplink
Seismic data, status data be converted to electric signal.
The peripheral sensor includes depth transducer, height sensor, temperature sensor and attitude transducer.
The built in test module is used to each key component monitor and test in real time, including power-supply system prison
It surveys, storage system monitoring, communication system monitoring, task order monitoring.
The Clock management module uses the clock source of High Precision Crystal Oscillator or atomic clock as system, to ensure earthquake system
The time accuracy of system acquisition seismic data.
The sound source host interface includes two-way interface signal, is to export TTL start pulse signals to sound source host all the way,
Another way carries out excitation energy parameter setting to sound source host and monitors sound source host work state.
The Ethernet interface is the external interface of control system, the control device for connecting upper level, and data
It uploads, the acquisition of control command is also all carried out by the Ethernet interface.
The memory management module includes high speed storage array and its array management circuit, and the data storage array can
To be SD card, hard disk or other devices, the memory management module is for the seismic data after storing and resolving.
Multi channel underwater data acquisition device in this example, may operate in automatic mode, can also work in controlled
Pattern.When working in autonomous mode, the parameters such as interval, sample rate, sampling length are used according to what user set in advance, with
What is be arranged is fixed using the automatic progress data Underwater Acoustic Data Acquisition in interval；When working in controlled mode, underwater movable platform 2
Multi channel underwater data acquisition device is configured and is controlled by payload interface, specifically, underwater movable platform 2 is to mostly logical
Road Underwater Acoustic Data Acquisition device is configured using parameters such as interval, sample rate, sampling lengths, and underwater movable platform 2 is to more
The startup and closing of channel Underwater Acoustic Data Acquisition device are controlled.
Fig. 4 is the knot of sound source host in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
Structure block diagram.
Referring to Fig. 4, the sound source host includes：Central controller, boosting rectifier charging circuit, energy capacitance set, Quan Gu
Body discharge switch and the charging control circuit being all connected with the central controller, sample circuit, discharge switch control electricity
Road, serial line interface, Phototube Coupling interface.
The energy capacitance set respectively with the boosting rectifier charging circuit, the total solids discharge switch and described adopt
Sample circuit connects, and the boosting rectifier charging circuit is connect with the charging control circuit, the total solids discharge switch and institute
State the connection of discharge switch control circuit, the total solids discharge switch connects the photoelectricity and plugs into box, the serial line interface and institute
State the described multi channel underwater data acquisition device connection of Phototube Coupling interface.
The central controller, according to the voltage in the excitation energy and energy capacitance set of user setting, control charging control
Circuit processed starts to charge up or terminates charging；Outside under triggering pattern, according to the trigger signal received, the discharge switch is controlled
Control circuit is closed the total solids discharge switch；Inside under triggering pattern, according to the time interval of user setting, described in control
Discharge switch control circuit is closed the total solids discharge switch；Acquire simultaneously storage system working condition.
The boosting rectifier charging circuit, including inversion, boosting, rectification are carried out to battery pack DC power supply, by battery pack
DC power supply be transformed to high-voltage DC power supply, charge to energy capacitance set.
The energy capacitance set is made of multiple pulse storage capacitors.
The total solids discharge switch includes thyristor and fly-wheel diode, and thyristor has one-way conduction characteristic, brilliant lock
Pipe with fly-wheel diode coordinate, the total solids discharge switch for realizing the energy capacitance set pulse repid discharge.
The charging control circuit is used for the order according to the central controller, starts or stop charging.
The sample circuit is used to carry out partial pressure sampling to the voltage of the energy capacitance set, obtains capacitance voltage value, and
The capacitance voltage value is sent to the central controller.
The discharge switch control circuit, instantaneous large-current is generated when receiving trigger signal, leads to turn on thyristors, storage
It can the release of capacitance group electric energy.
The serial line interface is responsible for the communication between sound source host and multi channel underwater data acquisition device, multi channel underwater
Data acquisition device carries out parameter setting by the serial line interface to sound source host, and the status information of sound source host passes through serial
Interface is sent to multi channel underwater data acquisition device.
The Phototube Coupling interface for receiving outer triggering signal, and by the outer triggering signal be sent to it is described in
Controller, outer triggering signal is entreated to can come from underwater research vehicle, can be from miscellaneous equipment；Phototube Coupling can be to avoid sound
Interference and damage of the source host internal high voltages to underwater research vehicle or miscellaneous equipment.
The radio network interface can be blue tooth interface or WIFI interface, can connect, be used for computer or mobile phone
User is configured sound source parameter, it may be necessary to which monitoring sound source operating status in real time, the sound source parameter include excitation energy
Amount, operating mode, excitation interval and operating schedule.User can both carry out sound source host by radio network interface independent
Setting, indirectly can also be configured sound source host by multi channel underwater data acquisition device, and the two is with All factors being equal, preference will be give to
Grade.
The photoelectricity is plugged into box, between multi channel underwater data acquisition device, sound source host and optoelectronic composite cable
Light, power information transfers.Photoelectricity box of plugging into further includes power management module, the power management module, to described
Battery pack is managed, and is avoided the battery pack from overcharging and cross and is put, improves the service life of the battery pack；Simultaneously to the electricity
Pond group voltage is isolated, convert after, generate suitable voltage low-voltage dc power supply supply multi channel underwater data acquisition device,
The control circuits such as sound source host use.
The battery pack is powered for all components.
Fig. 5 is multi-electrode transmitting row in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
The structural schematic diagram of battle array.
Referring to Fig. 5, multi-electrode transmitting array 4 include high-field electrode array 8, metal framework 9, entrant sound pressure resistance bucket 10,
First buoyancy column 11, the second buoyancy column 12, high pressure interconnecting device 13 and electrolyte solution.
The electrolyte solution, and the high-field electrode array 8, the metal framework are full of in the entrant sound pressure resistance bucket 10
9 are immersed in the electrolyte solution, and the electrolyte solution is seawater, and it is resistance to that the high pressure interconnecting device 13 is located at the entrant sound
The top of bucket 10, the first buoyancy column 11 is pressed to be located at the head end of the entrant sound pressure resistance bucket 10, the second buoyancy column 12 is located at
The tail end of the entrant sound pressure resistance bucket 10, the first buoyancy column 11 and the second buoyancy column 12 with the entrant sound pressure resistance bucket 10
It is fixedly connected, the high-field electrode array 8 is connect with high potential electric wire, and the metal framework 9 is connect with zero potential electric wire.
The high-field electrode array 8 includes multiple high-voltage discharging electrodes, for emitting putting for array 4 as the multi-electrode
The high-voltage potential of electricity.
The metal framework 9 is used to emit as the multi-electrode zero potential of the electric discharge of array 4.
The material of the entrant sound pressure resistance bucket 10 is carbon fibre material makes the high pressure for completely cutting off deep water high static pressure environment
Electrod-array 8 and the metal framework 9 are in atmospheric pressure environment.Under atmospheric pressure environment, high-field electrode array 8 and metal framework 9
Electroacoustic conversion performance is more applicable for marine seismic prospectiong.The entrant sound pressure resistance bucket 10 had not only had sealing compressive property, but also had
Good sound translative performance.
Entrant sound pressure resistance bucket 10 in this example may operate in the high static pressure environment of the 2000m depth of waters.
The material of the first buoyancy column 11 and the second buoyancy column 12 is glass microballoon buoyant material, described
First buoyancy column 11 and the second buoyancy column 12 are used to offset the weight of the high-field electrode array 8 and the metal framework 9
Amount so that multi-electrode emits the whole of array 4 and approximate neutral buoyancy is presented.
The electrolyte solution is used to emit as the multi-electrode electric discharge between the high-voltage potential and zero potential of array 4
Channel.
The high pressure interconnecting device 13 is for high pressure of transferring.
Fig. 6 is multichannel hydrophone in a kind of seismic survey system based on underwater movable platform of the utility model embodiment
The structural schematic diagram of linear array.
Referring to Fig. 6, the multichannel hydrophone linear array 5 includes opto-electronic conversion packet, preceding stretch section 14, active section 15, number
Word packet, rear stretch section 16 and drag parachute 17.
It is connected by the opto-electronic conversion packet between the preceding stretch section 14 and the optoelectronic composite cable 6, the photoelectricity turns
Packet is changed, the seismic data and its status information that can acquire multichannel hydrophone linear array 5 are converted to optical fiber letter by electric signal
Number, multi channel underwater data acquisition device can also be sent to the control information of multichannel hydrophone linear array 5, believed by optical fiber
Number be converted to electric signal.
The mechanical oscillation that the preceding stretch section 14 is used to be isolated underwater movable platform and multi-electrode transmitting array generates, weaken
Interference of the mechanical oscillation to the active section 15.
The multichannel hydrophone linear array 5 includes active section 15 described at least one, includes in each active section 15
At least 1 group of hydrophone, every group of hydrophone are 1 underwater sound channel, and every group of hydrophone includes at least 1 hydrophone 18, when 1 group of water is listened
When in device including multiple hydrophones 18, organizes interior multiple hydrophones 18 and arranged with identical or different spacing, and multiple water are listened
Device 18 connects in parallel or serial fashion.
Connected by the digital packets between the preceding stretch section 14 and the active section 15, multiple active sections 15 it
Between connected by the digital packets, the active section 15 and it is described after connected by the digital packets between stretch section, the number
Word packet is used to analog electrical signal being converted to digital electric signal.
Stretch section 16 is used for isolated tail noise after described.
The drag parachute 17 is connect with the rear stretch section 16, the appearance for keeping the multichannel hydrophone linear array 5
State.
The inside of the multichannel hydrophone linear array 5 is filled with the buoyant material of liquid, colloid or solid, the buoyancy
Material makes overall system be in faint positive buoyancy.
Optoelectronic composite cable 6 in this example, it is external to be reinforced by the aramid fibers material such as KEVLAR, it is responsible for light, electric signal
Transmission, wherein light, electric signal include：1. high pressure, high current arteries and veins caused by the repid discharge of energy capacitance set in sound source host
Rush signal；2. for the DC power supply of multichannel hydrophone linear array power supply；3. the earthquake number of multichannel hydrophone linear array acquisition
According to and its status information, be fiber-optic signal；4. multi channel underwater data acquisition device is sent to multichannel hydrophone linear array
Information is controlled, is fiber-optic signal.
The optoelectronic composite cable 6 can be carried for pulling multi-electrode transmitting array and multichannel hydrophone linear array 5
Larger pulling force；The mechanical oscillation that multi-electrode transmitting array generates, vibration when preventing multi-electrode from emitting 4 discharge excitation of array is isolated
Interfere underwater movable platform 2；The electromagnetic interference that multi-electrode transmitting array generates is isolated, prevents the multi-electrode transmitting electric discharge of array 4 from swashing
Strong electromagnetic wave when hair interferes underwater movable platform 2.
The seismic survey system based on underwater movable platform in above-described embodiment, in practical applications, specific works mistake
Journey is as follows：
(1) research vessel reaches set working sea area；
(2) on the one hand user carries out the running parameter of multi channel underwater data acquisition device by Ethernet interface
Setting, such as the running parameters such as sampling interval, sample rate, sampling length, and multi channel underwater data acquisition device is set to
Automatic operation mode, test equipment are in normal operating conditions；On the other hand the running parameter of sound source host is carried out indirectly
The running parameters such as setting, such as excitation energy, operating mode, excitation interval, operating schedule, and sound source host will be set to
Internal trigger operating mode, test equipment are in normal operating conditions；
(3) it will be provided with the external hanging type electronic compartment of circuit integrating device, it is latent in autonomous underwater by carry mechanism carry
On device；
(4) multi-electrode is emitted into array, multichannel hydrophone linear array is mounted on autonomous underwater by tail portion hitch bar
The tail portion of latent device, and multi-electrode transmitting array, multichannel hydrophone linear array are passed through into optoelectronic composite cable and external hanging type electronic compartment
It is connected, optoelectronic composite cable, multi-electrode transmitting array, multichannel hydrophone linear array pull the tail for device of diving in autonomous underwater
It portion and is horizontal；
(5) setting autonomous underwater is dived the parameter of device, and autonomous underwater device cloth of diving is put into sea, keeps autonomous underwater latent
Device according to set running parameter, working depth, work course line navigation；
(6) when autonomous underwater dives device arrival designated depth, sound source host computer control multi-electrode emits array and starts to work,
Multi-electrode emits array and is spaced transmitting sound wave (artificial source's seismic wave) according to set excitation；
(7) sound wave emitted is received after stratum is reflected by multichannel hydrophone linear array；
(8) sound wave after stratum is reflected received is sent in external hanging type electronic compartment by multichannel hydrophone linear array
Multichannel collecting device, the Logic control module in multichannel collecting device parses data, and by the number after parsing
According to microprocessor module and memory management module is sent to, microprocessor module sends out data after parsing through Ethernet interface in real time
It send to the control device of upper level, the data of parsing are locally stored memory management module.
(9) after working, sound source Host Shutdown, multi channel underwater data acquisition device is closed, and the control of upper level is set
Standby order autonomous underwater is dived near device return water surface arrival research vessel；
(10) by autonomous underwater dive device and multi-electrode transmitting array be recovered to investigation boat deck；
(11) it is the battery pack charging in autonomous underwater latent device and external hanging type electronic compartment, preparation next stage lays work
Make.
The seismic survey system based on underwater movable platform in this example, has the following advantages：
(1) underwater movable platform can be conveniently applied to；
(2) it when deep-sea marine site carries out seismic survey operation, since sound source near Sea Bottom pulls, compared to sea sound source, keeps away
Significantly decaying of the big depth seawater to sound wave (especially high frequency sound wave) is exempted from, has improved seismic survey resolution ratio, increase ground
Layer penetration depth；
(3) towing of multi-electrode transmitting battle array reduces source emission to the vibration of vehicle and does in underwater research vehicle rear
It disturbs, the sound wave of tall and big sound source level can be emitted；
(4) use of entrant sound pressure resistance bucket so that equipment can use under the conditions of deep water high static pressure, the acoustical signal frequency of generation
Spectrum is suitable with the sound source level, frequency spectrum that Layer Near The Sea Surface generates.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, according to the thought of the utility model, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of seismic survey system based on underwater movable platform, which is characterized in that including：External hanging type electronic compartment, circuit collection
At device, underwater movable platform, carry mechanism, multi-electrode transmitting array and multichannel hydrophone linear array；
The external hanging type electronic compartment is fixed on by the way that the carry mechanism is plug-in on the underwater movable platform, and the circuit is integrated
Device is arranged in the external hanging type electronic compartment, and the circuit integrating device is connect with multi-electrode transmitting array, described more
Electrode emission array is connect with the multichannel hydrophone linear array；
The circuit integrating device includes that multi channel underwater data acquisition device, sound source host, photoelectricity are plugged into box and battery pack, institute
Multi channel underwater data acquisition device is stated to connect with the sound source host, the photoelectricity plug into box respectively with the multi channel underwater
Data acquisition device, the sound source host, the battery pack and multi-electrode transmitting array connection, the multi channel underwater
Data acquisition device is for acquiring the underwater sound data that the multichannel hydrophone linear array receives, and the sound source host is for controlling
Make multi-electrode transmitting array discharge excitation sound wave, the photoelectricity plug into box for receiving optical signal or electric signal into
Row is transferred and is managed to the battery pack.
2. a kind of seismic survey system based on underwater movable platform according to claim 1, which is characterized in that the system
System further includes photoelectric compound cable, and the circuit integrating device emits array by the photoelectric compound cable and the multi-electrode
Connection, the photoelectric compound cable pass through multi-electrode transmitting array to be connect with the multichannel hydrophone linear array.
3. a kind of seismic survey system based on underwater movable platform according to claim 2, which is characterized in that the system
System further includes tail portion hitch bar, and one end of the tail portion hitch bar is fixedly connected with the tail portion of the underwater movable platform, described
The other end of tail portion hitch bar is mounted with the photoelectric compound cable, and the tail portion hitch bar is flat for bearing the underwater movement
The photoelectric compound cable, multi-electrode transmitting array and the multichannel hydrophone linear array are dragged during platform navigation
It pulls.
4. a kind of seismic survey system based on underwater movable platform according to claim 1, which is characterized in that described more
Channel Underwater Acoustic Data Acquisition device includes：
Microprocessor, logic controller, fiber count pass interface, peripheral sensor, built in test device, Clock management module, sound
Source host interface, Ethernet interface and memory management module；
The microprocessor respectively with the underwater movable platform, the logic controller, the peripheral sensor, the sound source
Host interface is connected with the Ethernet interface, and the sound source host interface is connect with the sound source host, the microprocessor
For parameter preset to be sent to the logic controller and the multichannel hydrophone linear array, while trigger signal being sent
To the sound source host and the multichannel hydrophone linear array, the peripheral sensor data received are sent to the logic
Controller, and the data that logic controller described in real-time reception is sent, are sent the data by Ethernet interface, institute in real time
It includes that default use is spaced, presets sample rate and preset recording length to state parameter preset；
The logic controller respectively with the fiber count pass interface, the built in test device, the Clock management module and
Memory management module connection, the fiber count pass interface and the photoelectricity box of plugging into and connect, and the logic controller is used for
The seismic data that the multichannel hydrophone linear array is sent is received, the seismic data is parsed, by the ground after parsing
Shake data are sent to microprocessor module and the memory management module in real time；
The fiber count passes interface for carrying out opto-electronic conversion；
The peripheral sensor includes depth transducer, height sensor, temperature sensor and attitude transducer；
The built in test module for monitoring and testing in real time；
The Clock management module uses the clock source of High Precision Crystal Oscillator or atomic clock as system；
The sound source host interface is used to export start pulse signal to the sound source host and be carried out to the sound source host
Excitation energy parameter setting；
The Ethernet interface is used to connect the control device of upper level；
The memory management module is used for the seismic data after storing and resolving.
5. a kind of seismic survey system based on underwater movable platform according to claim 1, which is characterized in that the sound
Source host includes：
Central controller, boosting rectifier charging circuit, energy capacitance set, total solids discharge switch and with it is described center control
Charging control circuit that device is all connected with, sample circuit, discharge switch control circuit, serial line interface, Phototube Coupling interface and wireless
Network interface；
The energy capacitance set is electric with the boosting rectifier charging circuit, the total solids discharge switch and the sampling respectively
Road connects, and the boosting rectifier charging circuit is connect with the charging control circuit, and the total solids discharge switch is put with described
Electric switch control circuit connects, and the total solids discharge switch connects the photoelectricity and plugs into box, the serial line interface and the light
Interface is electrically isolated to connect with the multi channel underwater data acquisition device；
The central controller is used to control the charging control circuit and starts to charge up or terminate to charge and control the electric discharge
ON-OFF control circuit is closed；
The boosting rectifier charging circuit, for charging to the energy capacitance set；
The energy capacitance set is made of multiple pulse storage capacitors；
The total solids discharge switch for realizing the energy capacitance set pulse repid discharge；
The charging control circuit is used for the order according to the central controller, starts or stop charging；
The sample circuit is used to carry out partial pressure sampling to the voltage of the energy capacitance set, obtains capacitance voltage value, and by institute
It states capacitance voltage value and is sent to the central controller；
The discharge switch control circuit, for controlling the energy capacitance set electric energy release；
The serial line interface is for the communication between the sound source host and the multi channel underwater data acquisition device；
The outer triggering signal is sent to the center and controlled by the Phototube Coupling interface for receiving outer triggering signal
Device processed；
The radio network interface is used to receive the sound source parameter of user setting, and the sound source parameter is sent to the center
Controller, the sound source parameter include that excitation energy, operating mode, excitation interval and operating schedule, the wireless network connect
Mouth is blue tooth interface or WIFI interface.
6. a kind of seismic survey system based on underwater movable platform according to claim 2, which is characterized in that described more
Electrode emission array includes high-field electrode array, metal framework, entrant sound pressure resistance bucket, the first buoyancy column, the second buoyancy column, high pressure turn
Connect box and electrolyte solution；
The electrolyte solution is full of in the entrant sound pressure resistance bucket, and the high-field electrode array, the metal framework immerse
In in the electrolyte solution, the high pressure interconnecting device is located at the top of the entrant sound pressure resistance bucket, and the first buoyancy column is located at
The head end of the entrant sound pressure resistance bucket, the second buoyancy column are located at the tail end of the entrant sound pressure resistance bucket, the first buoyancy column and
The second buoyancy column is fixedly connected with the entrant sound pressure resistance bucket, and the high-field electrode array is connect with high potential electric wire, institute
Metal framework is stated to connect with zero potential electric wire；
The high-field electrode array includes multiple high-voltage discharging electrodes, the height of the electric discharge for emitting array as the multi-electrode
Piezoelectric position；
The metal framework is used to emit as the multi-electrode zero potential of the electric discharge of array；
The entrant sound pressure resistance bucket makes the high-field electrode array and the metal framework be in for completely cutting off deep water high static pressure environment
Atmospheric pressure environment；
The first buoyancy column and the second buoyancy column are used to offset the high-field electrode array and the metal framework
Weight；
The electrolyte solution is used to emit as the multi-electrode discharge channel between the high-voltage potential and zero potential of array；
The high pressure interconnecting device is for high pressure of transferring.
7. a kind of seismic survey system based on underwater movable platform according to claim 2, which is characterized in that described more
Channel hydrophone linear array includes opto-electronic conversion packet, preceding stretch section, active section, digital packets and rear stretch section；
The photoelectric compound cable is connect by the opto-electronic conversion packet with the preceding stretch section, and the preceding stretch section passes through described
Digital packets are connect with the active section, are connected by the digital packets between multiple active sections, the active section passes through institute
Digital packets are stated to connect with the rear stretch section；
The opto-electronic conversion packet is used to turn the collected seismic data of the multichannel hydrophone linear array and its status information
It is changed to fiber-optic signal, and multi channel underwater data acquisition device is sent to the control information of the multichannel hydrophone linear array
Be converted to electric signal；
The mechanical oscillation that the preceding stretch section is used to be isolated the underwater movable platform and multi-electrode transmitting array generates；
The active section includes multiple hydrophones, and analog telecommunications are converted to for acquiring underwater sound signal, and by the underwater sound signal
Number；
The digital packets are used to the analog electrical signal being converted to digital electric signal；
Stretch section is used for isolated tail noise after described.
8. a kind of seismic survey system based on underwater movable platform according to claim 6, which is characterized in that described
The material of sound pressure resistance bucket is carbon fibre material；The material of the first buoyancy column and the second buoyancy column is that glass microballoon is floating
Dead-wood material.
9. a kind of seismic survey system based on underwater movable platform according to claim 7, which is characterized in that described more
Channel hydrophone linear array further includes drag parachute, and the drag parachute is connect with the rear stretch section, for keeping the multichannel
The posture of hydrophone linear array.
10. a kind of seismic survey system based on underwater movable platform according to claim 2, which is characterized in that described
External hanging type electronic compartment is connect by underwater electrical connector with the underwater movable platform, the photoelectric compound cable.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107483A (en) * | 2017-12-27 | 2018-06-01 | 国家海洋局第海洋研究所 | A kind of seismic survey system based on underwater movable platform |
| CN111650649A (en) * | 2020-07-10 | 2020-09-11 | 中国海洋大学 | Cable integrated electric field sensor electrode array and preparation method thereof |
-
2017
- 2017-12-27 CN CN201721865398.0U patent/CN207895085U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107483A (en) * | 2017-12-27 | 2018-06-01 | 国家海洋局第海洋研究所 | A kind of seismic survey system based on underwater movable platform |
| US10890678B2 (en) * | 2017-12-27 | 2021-01-12 | The First Institute Of Oceanography, Soa | Seismic exploration system based on underwater mobile platform |
| CN108107483B (en) * | 2017-12-27 | 2023-08-11 | 国家海洋局第一海洋研究所 | Seismic prospecting system based on underwater mobile platform |
| CN111650649A (en) * | 2020-07-10 | 2020-09-11 | 中国海洋大学 | Cable integrated electric field sensor electrode array and preparation method thereof |
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