CN106840365B - A kind of optical fiber vector hydrophone system of small underwater utonomous working - Google Patents
A kind of optical fiber vector hydrophone system of small underwater utonomous working Download PDFInfo
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- CN106840365B CN106840365B CN201710229321.2A CN201710229321A CN106840365B CN 106840365 B CN106840365 B CN 106840365B CN 201710229321 A CN201710229321 A CN 201710229321A CN 106840365 B CN106840365 B CN 106840365B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 58
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- 230000005540 biological transmission Effects 0.000 claims abstract description 20
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- 238000001514 detection method Methods 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000009466 transformation Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
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- 230000004048 modification Effects 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/002—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means for representing acoustic field distribution
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Abstract
The invention discloses a kind of optical fiber vector hydrophone systems of small underwater utonomous working, including green end and underwater instrument cabin, wherein: the green end, for detecting the underwater sound vector field signal of position to be measured and the attitude signal of optical fiber vector hydrophone itself, and underwater sound vector field signal is converted into optical signal, coherent signal is sent to underwater instrument cabin；Green end includes optical fiber vector hydrophone and attitude transducer；The underwater instrument cabin is connect with green end by transmission cable, for providing light source for green end, and is received the optical signal and attitude signal of green end transmission, is extracted the underwater acoustic field signal in green end optical signal, is locally stored and carries out information exchange with external equipment；Underwater instrument cabin includes Photoelectric Signal Processing module, data memory module, laser emitting module and power supply module.Realize efficient, high reliability underwater utonomous working.
Description
Technical field
The present invention relates to the optical fiber vector water of technical field of optical fiber sensing more particularly to a kind of small underwater utonomous working
Listen device system.
Background technique
As China is to the pay attention to day by day of ocean development and underwater early warning, carry out underwater acoustic detection system technical research and engineering
Application study have become there is an urgent need to.Underwater sound field is the important observation element of ocean section research and Underwater Target Detection, in object
In reason, underwater sound field is vector field, the scalar sum vector signal obtained by vector hydrophone, may be implemented to carry out sound field complete
Description.Vector hydrophone generation underwater for research sound wave, radiation, propagation and received rule, solution and submarine target
Detection, identification and the related sound problem of signals transmission are of great significance.In recent years based on fibre optic hydrophone
Underwater Detection technology has obtained development rapidly, and the developed countries such as U.S. detect battle array in submarine shell side cooler, towed array and subsurface buoy
Start to equip in sonar, wherein the appearance of optical fiber vector hydrophone solves the problems, such as that it is new that deep-sea detecting provides with fast-developing
Technological approaches.
Optical fiber vector hydrophone combines the advantages of vector hydrophone and fibre optic hydrophone, has high sensitivity, and low frequency is special
Property good, the features such as dynamic range is big, and underwater operation stability is high, adverse environment resistant, be conducive to the long-term detection to underwater sound field, no
It is applicable only to target acquisition, also before the important fields such as submarine observation network, offshore oil detection illustrate wide application
Scape.There are many application forms for optical fiber vector hydrophone, and main includes fixing battle array, subsurface buoy, UUV, independently attacking submarine mine, seek deep water certainly
Bomb etc., wherein subsurface buoy is a kind of important application, can maneuverability launch and recycling, carry out multiple Reusability, can also be
It is underwater long-term, snugly work and do not influenced by sea meteorological condition.Thus underwater utonomous working is the unmanned probings such as subsurface buoy system
Basic demand in practical application of uniting.
Optical fiber vector hydrophone is due to technically complex relative to conventional vector hydrophone, underwater autonomous work
Making to realize is a difficult point.
Therefore how to realize optical fiber vector hydrophone system high efficiency, high reliability underwater utonomous working, become
Those skilled in the art's urgent problem to be solved.
Summary of the invention
The technical problem to be solved by the present invention is to overcome drawbacks described above of the existing technology, provide a kind of small underwater
The optical fiber vector hydrophone system of utonomous working can be realized efficient, high reliability underwater utonomous working.
The present invention provides the optical fiber vector hydrophone system of small underwater utonomous working, including green end and underwater instrument cabin,
Wherein:
The green end, for detecting the underwater sound vector field signal of position to be measured and the posture letter of optical fiber vector hydrophone itself
Number, and underwater sound vector field signal is converted into optical signal, coherent signal is sent to underwater instrument cabin；Green end includes optical fiber vector
Hydrophone and attitude transducer, in which:
Optical fiber vector hydrophone for detecting the underwater sound vector field signal of position to be measured, and is converted to optical signal, light is believed
Number it is sent to underwater instrument cabin；
Attitude signal for the attitude signal of detection optical fiber vector hydrophone itself, and is sent water supply by attitude transducer
Lower instrument room；
The underwater instrument cabin is connect with green end by transmission cable, for providing light source for green end, and receives green end hair
The optical signal and attitude signal that send extract the underwater acoustic field signal in green end optical signal, be locally stored and and external equipment into
Row information interaction；Underwater instrument cabin includes Photoelectric Signal Processing module, data memory module, laser emitting module and power supply mould
Block, in which:
Photoelectric Signal Processing module converts optical signal into water for receiving the optical signal and attitude signal of green end transmission
Acoustic field signal and attitude signal is converted into digital angle signal, and underwater acoustic field signal and digital angle signal are sent to number
Information exchange is carried out according to memory module and with external equipment；It generates modulated signal and is sent to laser emitting module；
Data memory module, for receiving the underwater acoustic field signal of Photoelectric Signal Processing module transmission and being stored；
Laser emitting module, for providing laser of frequency modulation for green end；
Power supply module, the modules of instrument room provide power supply under water supply.
Preferably, the Photoelectric Signal Processing module includes signal acquisition module, signal conversion module, signal solution mode transfer
Block, signal modulation module, data transmit-receive module, in which:
Optical signal is carried out amplitude adjustment for receiving the optical signal and attitude signal of green end transmission by signal acquisition module
After be sent to signal conversion module, attitude signal is sent to signal demodulation module；
Signal conversion module is sent to signal solution for receiving the optical signal converted electrical number of signal acquisition module transmission
Mode transfer block；
Signal demodulation module, for received attitude signal to be converted to digital angle signal and by received electric signal solution
It is adjusted to digital underwater acoustic field signal, is sent to data transmit-receive module；
Signal modulation module is sent to laser emitting module for generating modulated signal；
Data transmit-receive module, for receiving, underwater acoustic field signal is sent to data memory module and external equipment and reception is external
The operation instruction signal of equipment.
Preferably, the optical fiber vector hydrophone is interference-type optical fiber vector hydrophone, by the underwater sound vector of position to be measured
Field signal is converted to interference light signal.
Preferably, the signal demodulation module and signal modulation module are all made of PGC method and generate modulated signal and demodulation
Signal.
Preferably, the power supply module includes battery pack, detection module on duty and voltage transformation module, in which:
Battery pack is by the series connection of multiple batteries and or composes in parallel；
Detection module on duty, for obtaining the relevant information of every piece of battery in battery pack, when certain block battery reaches in battery pack
To the output of predetermined condition shutdown battery pack, the other batteries of battery pack keep output；
Voltage transformation module is converted to battery pack output voltage defeated after the voltage of the modules demand in underwater instrument cabin
It powers out to the modules of underwater instrument room.
Preferably, the data transmit-receive module receives external device instruction signal and is sent to detection module on duty, realization pair
The real time monitoring mode and attended mode of detection module on duty switch.
Preferably, the real time monitoring mode of the detection module on duty are as follows: obtain in battery pack the voltage of every piece of battery or
Surplus or temperature information, when certain block cell voltage is lower than the surplus of certain block battery in preset value or battery pack lower than pre- in battery pack
If certain block battery temperature is higher than preset value in value or battery pack, the output that battery is corresponded in battery pack, the other electricity of battery pack are turned off
Pond keeps output.
Preferably, the data transmit-receive module receives the foundation of external device instruction signal and pre-establishes every block of electricity in battery pack
The watch bill of pond working time and job order, and can be according to external demand signal to working time parameter and job order parameter
It modifies.
Preferably, the attended mode of the detection module on duty are as follows: be turned on and off in battery pack according to watch bill control
The output of every piece of battery.
Preferably, the data transmit-receive module is connect by watertight connector with external equipment.
By optical fiber vector hydrophone and attitude transducer with the use of the accuracy for improving the detection of underwater sound field vector
And reliability, underwater acoustic field signal is extracted to optical signal and attitude signal in underwater instrument cabin, and can carry out this storage and with it is outer
Portion's equipment, which carries out information exchange, realizes efficient underwater utonomous working, and green end is small-power power supply, live part installation
In further improving the reliability of system in underwater instrument cabin.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of the optical fiber vector hydrophone system of small underwater utonomous working provided by the invention.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to the accompanying drawing to the present invention
It is described in further detail.
It is a kind of structure of the optical fiber vector hydrophone system of small underwater utonomous working provided by the invention referring to Fig. 1
Block diagram.
The optical fiber vector hydrophone system of small underwater utonomous working, including green end 100 and underwater instrument cabin 200, in which:
The green end 100, for detecting the underwater sound vector field signal and optical fiber vector hydrophone 110 itself of position to be measured
Attitude signal, and underwater acoustic field signal is converted into optical signal, coherent signal is sent to underwater instrument cabin 200；Green end 100 includes
Optical fiber vector hydrophone 110 and attitude transducer 120, in which:
Optical fiber vector hydrophone 110 for detecting the underwater sound vector field signal of position to be measured, and is converted to optical signal, will
Optical signal is sent to underwater instrument cabin 200；
Attitude transducer 120 for the attitude signal of detection optical fiber vector hydrophone 110 itself, and attitude signal is sent out
Give underwater instrument cabin 200；
The underwater instrument cabin 200 is connect with green end 100 by transmission cable, for providing light source for green end 100, and is connect
The optical signal and attitude signal that hygroscopic end 100 is sent extract the underwater acoustic field signal in 100 optical signal of green end, are locally stored
And information exchange is carried out with external equipment；Underwater instrument cabin 200 includes Photoelectric Signal Processing module 210, data memory module
220, laser emitting module 230 and power supply module 240, in which:
Photoelectric Signal Processing module 210 turns optical signal for receiving the optical signal and attitude signal of the transmission of green end 100
It turns to digital underwater acoustic field signal and attitude signal is converted into digital angle signal, and underwater acoustic field signal and digital angle are believed
It number is sent to data memory module 220 and carries out information exchange with external equipment；It generates modulated signal and is sent to Laser emission
Module 230；
Data memory module 220, for receiving the underwater acoustic field signal of Photoelectric Signal Processing module transmission and being stored；
Laser emitting module 230, for providing laser of frequency modulation for the optical fiber vector hydrophone 110 of green end 100；
Power supply module 240, the modules of instrument room 200 provide power supply under water supply.
The Photoelectric Signal Processing module 210 in underwater instrument cabin 200 generates modulated signal and is sent to laser emitting module 230,
The laser of narrow wide tunable can be used in laser emitting module 230, and laser emits modulated laser and passes through transmission cable
It is transferred to optical fiber vector hydrophone 110, by the underwater acoustic field signal of the probe detection of optical fiber vector hydrophone 110 position to be measured,
And optical signal is converted to, optical signal is sent to underwater instrument cabin 200.
The attitude signal of the probe of 120 detection optical fiber vector hydrophone 110 of attitude transducer, sends water supply for attitude signal
Lower instrument room 200.Underwater instrument cabin 200 receives attitude signal and optical signal segment sync, guarantees the water for including in optical signal
The synchronism of acoustic field signal and the variation of 110 probe posture of optical fiber vector hydrophone, further increases the standard of underwater acoustic field signal extraction
True property.
Underwater instrument cabin 200 receives optical signal and attitude signal, converts optical signal into digital underwater acoustic field signal, by appearance
State signal is converted to digital angle signal, can be stored in local data memory module 220, can also be sent to outer
Portion's equipment is remotely stored or is monitored.
Preferably, interference formula can be used with vibration shape optical fiber vector hydrophone in optical fiber vector hydrophone 110, and it is empty to be equipped with interference formula
Air-chamber pattern optical fiber sound pressure hydrophone, it is synchronous to obtain interference light signal caused by underwater sound acceleration and acoustic pressure, pass through instrument under water
Photoelectric Signal Processing module 210 in cabin 200 to phase information in interference light carry out demodulation process obtain underwater sound field acceleration with
Sound pressure information.Attitude transducer 120 uses MCX3000 attitude transducer.
Optical fiber vector hydrophone is without electricity in green end 100, and attitude transducer only needs milliwatt small-power to power, and needs to supply
The major part of electricity is installed in underwater instrument cabin 200, is powered by the power supply module 240 in underwater instrument cabin 200.
By optical fiber vector hydrophone and attitude transducer with the use of the accuracy for improving the detection of underwater sound field vector
And reliability, underwater acoustic field signal is extracted to optical signal and attitude signal in underwater instrument cabin, and can carry out this storage and with it is outer
Portion's equipment, which carries out information exchange, realizes efficient underwater utonomous working.Green end and underwater instrument cabin are put under water, and green end
It is that small-power is powered, live part, which is installed in underwater instrument cabin, further improves the reliability of system.Underwater instrument cabin
Integrated molding has good airproof performance, feature small in size.The design in underwater instrument cabin is so that internal module generates heat and do not collect
In, and shell thermal conductivity is preferable.
In order to obtain the depth information of underwater sound field vector detecting location, application performance is further promoted, small underwater is autonomous
The optical fiber vector hydrophone system of work may also include pressure sensor 130, and pressure sensor 130 is used for detection optical fiber vector water
The pressure signal near device 110 is listened, pressure signal is sent to underwater instrument cabin 200；Photoelectric Signal Processing module 210, is used for
Receive green end 100 send pressure signal, by from after the underwater acoustic field signal and conversion demodulated in optical signal pressure signal and
Attitude signal is sent to data memory module 220 and carries out information exchange with external equipment.Pressure sensor 130 uses
ZT89-WX pressure sensor.
Further Photoelectric Signal Processing module 210 will be told about below.
Photoelectric Signal Processing module 210 includes signal acquisition module 211, signal conversion module 212, signal demodulation module
213, signal modulation module 214, data transmit-receive module 215, in which:
Optical signal is carried out width for receiving the optical signal and attitude signal of the transmission of green end 100 by signal acquisition module 211
It is sent to signal conversion module 212 after degree adjustment, attitude signal is sent to signal demodulation module 213；
Signal conversion module 212 is sent to for receiving the optical signal converted electrical number of the transmission of signal acquisition module 211
Signal demodulation module 213；
Signal demodulation module 213, for received attitude signal to be converted to digital angle signal and by received telecommunications
Number it is demodulated into digital underwater acoustic field signal, is sent to data transmit-receive module, is sent to data transmit-receive module 215；
Signal modulation module 214 is sent to laser emitting module 230 for generating modulated signal；
Data transmit-receive module 215 is sent to data memory module 220 and external equipment and connects for receiving underwater acoustic field signal
Receive the operation instruction signal of external equipment.The data transmit-receive module 215 can be attached by wired mode and external equipment,
As 215 network interface of data transmit-receive module is connect by watertight connector 250 with external equipment.The data transmit-receive module 215 can also pass through
Wireless mode is attached with external equipment, such as bluetooth, WIFI.
Signal acquisition module 211 receives attitude signal and optical signal segment sync, and optical signal is carried out width by optical signal
It is sent to signal conversion module 212 after degree adjustment, attitude signal is sent to signal demodulation module 213.Turn to improve signal
The strength and stability for changing the mold the received input optical signal of the institute of block 212, in signal acquisition module 211 to optical signal progress amplitude into
Row adjustment.Signal conversion module 212 is sent to signal demodulation module by optical signal converted electrical number, and after completing analog-to-digital conversion
213.Electric signal is demodulated into underwater acoustic field signal and attitude signal is converted to digital angle signal by signal demodulation module 213,
It is sent to data transmit-receive module 215.Underwater acoustic field signal is sent to data memory module 220 and outside by data transmit-receive module 215
Equipment and the operation instruction signal for receiving external equipment.
Signal modulation module 214 is sent to laser emitting module 230, laser emitting module 230 for generating modulated signal
Transmitting laser is transferred to optical fiber vector hydrophone 110 by transmission cable.Preferably, the signal demodulation module 213 and signal
Modulation module 214 is all made of PGC method and generates modulated signal and demodulated signal.PGC, Phase Generated Carrier, i.e.,
Phase generates carrier technology, the feature for having demodulation simple, small to hardware requirement.
In order to further increase the accuracy of underwater acoustic field signal, signal acquisition module 211 receives the light letter that green end 100 is sent
Number, attitude signal and pressure signal, optical signal is sent to signal conversion module 212, attitude signal and pressure signal are sent
To signal demodulation module 213；Signal demodulation module 213 is converted to the underwater acoustic field signal demodulated from electric signal, attitude signal
Digital angle signal and pressure signal are converted to digital pressure signal and are sent to data transmit-receive module 215.
In further embodiment, power supply module 240 includes battery pack 241, detection module on duty 242 and voltage modulus of conversion
Block 243, in which:
Battery pack 241 is by the series connection of multiple batteries and or composes in parallel；
Detection module 242 on duty, for obtaining the relevant information of every piece of battery in battery pack 241, when certain in battery pack 241
Block battery reaches the output of predetermined condition shutdown battery pack, and the other batteries of battery pack 241 keep output；
241 output voltage of battery pack is converted to the modules demand in underwater instrument cabin 100 by voltage transformation module 242
Voltage after output to underwater instrument room 100 modules power.
Preferably, the data transmit-receive module 215 receives external device instruction signal and is sent to detection module on duty
242, it realizes and the real time monitoring mode and attended mode of detection module 242 on duty is switched.
Preferably, the real time monitoring mode of the detection module on duty 242 are as follows: obtain every piece of battery in battery pack 241
Voltage or surplus or temperature information, when certain block cell voltage is lower than certain block battery in preset value or battery pack 241 in battery pack 241
Surplus be higher than preset value lower than certain block battery temperature in preset value or battery pack 241, turn off in battery pack 241 and correspond to battery
Output, the other batteries of battery pack 241 keep output.
Preferably, the data transmit-receive module 215 receives the foundation of external device instruction signal and pre-establishes in battery pack 241
The watch bill of every piece of battery working time and job order, and to working time parameter and can be worked suitable according to external demand signal
Order parameter is modified.
Preferably, the attended mode of the detection module on duty are as follows: battery pack 241 is turned on and off according to watch bill control
In every piece of battery output.
To reduce voltage converted power consumption, according to underwater instrument cabin power demands, battery pack 241 is 24V, battery pack 241 by
Multiple battery series connection and are composed in parallel.241 output voltage of battery pack is converted into underwater instrument by voltage transformation module 242
It exports after the voltage of the modules demand in device cabin 100 and powers to the modules of underwater instrument room 100.Detection module on duty
242 use STM32F103 as master chip, and voltage transformation module 243 uses DC/DC voltage transformation module.
At this point, temperature, capacity etc. factor is not absolutely consistent due to the internal resistance of cell, eventually result among battery pack
Some batteries are higher than average voltage in charging, some batteries are lower than average voltage in electric discharge.These situations are all be easy to cause
The lost of life of single battery, and the lost of life of single battery finally influences the service life of entire battery pack.It can be using real-time
Monitoring mode: in battery pack 241 the case where every piece of battery, i.e., the voltage of every piece of battery or surplus or temperature in acquisition battery pack 241
Information is spent, when certain block cell voltage is lower than the surplus of certain block battery in preset value or battery pack 241 lower than default in battery pack 241
Certain block battery temperature is higher than preset value in value or battery pack 241, turns off the output that battery is corresponded in battery pack 241, battery pack 241
Other batteries keep output；Attended mode can also be used: according to every piece of battery working time in watch bill and job order
Watch bill controls the output for being turned on and off every piece of battery in battery pack 241.When using attended mode, power consumption then reduces minimum
About arrive 0.1W or so.
The data transmit-receive module 215 receives external device instruction signal and is sent to detection module 242 on duty, realization pair
The real time monitoring mode and attended mode of detection module 242 on duty switch.Foundation pre-establishes every piece of battery work in battery pack 241
Make the watch bill of time and job order, and working time parameter and job order parameter can be carried out according to external demand signal
Modification.
Power supply module is the module that only one continues working in entire underwater instrument cabin 100, using low power dissipation design.
A kind of optical fiber vector hydrophone system of small underwater utonomous working provided by the present invention has been carried out in detail above
It is thin to introduce.Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand the core idea of the present invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection scope of the claims in the present invention.
Claims (9)
1. a kind of optical fiber vector hydrophone system of small underwater utonomous working, which is characterized in that including green end and underwater instrument
Cabin, in which:
The green end, for detecting the underwater sound vector field signal of position to be measured and the attitude signal of optical fiber vector hydrophone itself,
And underwater sound vector field signal is converted into optical signal, coherent signal is sent to underwater instrument cabin；Green end includes optical fiber vector water
Listen device, attitude transducer and pressure sensor, in which:
Optical fiber vector hydrophone is converted to for detecting the underwater sound vector field signal of position to be measured, and by underwater sound vector field signal
Optical signal is sent to underwater instrument cabin by optical signal；
Attitude transducer is sent to underwater instrument for the attitude signal of detection optical fiber vector hydrophone itself, and by attitude signal
Device cabin；
Pressure signal is sent to underwater instrument for the pressure signal near detection optical fiber vector hydrophone by pressure sensor
Cabin；
The underwater instrument cabin is connect with green end by transmission cable, for providing light source for green end, and receives green end transmission
Optical signal, attitude signal and pressure signal extract digital underwater acoustic field signal, digital angle signal and number in green end optical signal
Word pressure signal is locally stored and carries out information exchange with external equipment；Underwater instrument cabin is believed by attitude signal and light
Number segment sync receives；Underwater instrument cabin includes Photoelectric Signal Processing module, data memory module, laser emitting module and power supply
Module, in which:
Photoelectric Signal Processing module converts optical signal for receiving optical signal, attitude signal and the pressure signal of green end transmission
Digital angle signal is converted to for digital underwater acoustic field signal, by attitude signal and pressure signal is converted to digital pressure signal,
And by underwater acoustic field signal, digital angle signal and digital pressure signal be sent to data memory module and and external equipment into
Row information interaction；It generates modulated signal and is sent to laser emitting module；
Data memory module, for receive Photoelectric Signal Processing module transmission digital underwater acoustic field signal, digital angle signal with
And it digital pressure signal and is stored；
Laser emitting module, for providing laser of frequency modulation for green end；
Power supply module, the modules of instrument room provide power supply under water supply；
The Photoelectric Signal Processing module includes signal acquisition module, signal conversion module, signal demodulation module, signal modulation mould
Block, data transmit-receive module, in which:
Optical signal is carried out amplitude for receiving optical signal, attitude signal and the pressure signal of green end transmission by signal acquisition module
It is sent to signal conversion module after adjusting, attitude signal is sent to signal demodulation module, pressure signal is sent to signal solution
Mode transfer block；
Signal conversion module is sent to signal solution mode transfer for receiving the optical signal converted electrical number of signal acquisition module transmission
Block；
Signal demodulation module, for received attitude signal to be converted to digital angle signal, is demodulated into received electric signal
Digital underwater acoustic field signal and received pressure signal is converted into digital pressure signal, is sent to data transmit-receive module；
Signal modulation module is sent to laser emitting module for generating modulated signal；
Data transmit-receive module is sent to data for receiving digital underwater acoustic field signal, digital angle signal and digital pressure signal
Memory module and external equipment and the operation instruction signal for receiving external equipment.
2. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 1, which is characterized in that described
Optical fiber vector hydrophone is interference-type optical fiber vector hydrophone, and the underwater sound vector field signal of position to be measured is converted to interference light letter
Number.
3. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 2, which is characterized in that described
Signal demodulation module and signal modulation module are all made of PGC method and generate modulated signal and demodulated signal.
4. the optical fiber vector hydrophone system of small underwater utonomous working according to any one of claims 1 to 3, feature
It is, the power supply module includes battery pack, detection module on duty and voltage transformation module, in which:
Battery pack is by the series connection of multiple batteries and or composes in parallel；
Detection module on duty, for obtaining the relevant information of every piece of battery in battery pack, when certain block battery reaches pre- in battery pack
Fixed condition turns off the output of battery pack, and the other batteries of battery pack keep output；
Voltage transformation module, battery pack output voltage is converted to after the voltage of the modules demand in underwater instrument cabin output to
The modules in underwater instrument cabin are powered.
5. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 4, which is characterized in that described
Data transmit-receive module receives external device instruction signal and is sent to detection module on duty, realizes the real-time prison to detection module on duty
Control mode and attended mode switching.
6. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 5, which is characterized in that described
The real time monitoring mode of detection module on duty are as follows: obtain the voltage of every piece of battery or surplus or temperature information in battery pack, work as electricity
Certain block cell voltage is lower than the surplus of certain block battery in preset value or battery pack lower than certain block in preset value or battery pack in the group of pond
Battery temperature is higher than preset value, turns off the output that battery is corresponded in battery pack, and the other batteries of battery pack keep output.
7. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 5, which is characterized in that described
Data transmit-receive module receives external device instruction signal and pre-establishes every piece of battery working time and job order in battery pack
Watch bill, and can be modified according to external demand signal to working time parameter and job order parameter.
8. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 7, which is characterized in that described
The attended mode of detection module on duty are as follows: the output of every piece of battery in battery pack is turned on and off according to watch bill control.
9. the optical fiber vector hydrophone system of small underwater utonomous working according to claim 1, which is characterized in that described
Data transmit-receive module is connect by watertight connector with external equipment.
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| CN201710229321.2A CN106840365B (en) | 2017-04-10 | 2017-04-10 | A kind of optical fiber vector hydrophone system of small underwater utonomous working |
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| CN201710229321.2A CN106840365B (en) | 2017-04-10 | 2017-04-10 | A kind of optical fiber vector hydrophone system of small underwater utonomous working |
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| CN106840365B true CN106840365B (en) | 2019-09-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107612621A (en) * | 2017-10-20 | 2018-01-19 | 海口超图科技有限公司 | A kind of underwater monitoring system |
| CN108169753A (en) * | 2018-01-08 | 2018-06-15 | 哈尔滨工程大学 | A kind of underwater chain-wales acoustic fuse system of separate type and detection method |
| CN110514288A (en) * | 2019-08-27 | 2019-11-29 | 东北大学 | A kind of optical fiber vector hydrophone data collection system based on AD7764 and EP4CE30 |
| CN111256810B (en) * | 2020-03-23 | 2021-01-15 | 河北师范大学 | High-precision vector hydrophone |
| CN112099019A (en) * | 2020-07-16 | 2020-12-18 | 中国海洋石油集团有限公司 | Underwater sound vector detection device |
| CN112903089B (en) * | 2021-01-20 | 2023-04-25 | 中科长城海洋信息系统有限公司 | Underwater space three-dimensional sound field detection system and method |
| CN114459591B (en) * | 2021-12-28 | 2024-04-26 | 南方海洋科学与工程广东省实验室(广州) | Deep sea high-sensitivity optical fiber vector acoustic detection submerged buoy device and system |
| CN116295783A (en) * | 2023-03-09 | 2023-06-23 | 中国科学院声学研究所 | Underwater full-digital optical fiber hydrophone system suitable for remote transmission |
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