CN117470087A - Deep sea structure strain in-situ monitoring device - Google Patents
Deep sea structure strain in-situ monitoring device Download PDFInfo
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- CN117470087A CN117470087A CN202311184257.2A CN202311184257A CN117470087A CN 117470087 A CN117470087 A CN 117470087A CN 202311184257 A CN202311184257 A CN 202311184257A CN 117470087 A CN117470087 A CN 117470087A
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 19
- 238000012806 monitoring device Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 63
- 238000005259 measurement Methods 0.000 claims abstract description 62
- 238000004891 communication Methods 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims description 39
- 238000001914 filtration Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 21
- 230000008054 signal transmission Effects 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000000429 assembly Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 239000010408 film Substances 0.000 description 22
- 239000000758 substrate Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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Abstract
The invention relates to the technical field of on-line monitoring and detection of deep sea structures, in particular to a deep sea structure strain in-situ monitoring device, which protects a measuring assembly, a transmission assembly and a power supply assembly through a sealing assembly, supplies power to the transmission assembly and the measuring assembly in the sealing assembly through the power supply assembly, then sends a measuring command to the measuring assembly through the transmission assembly, detects the deep sea structure through the measuring assembly, transmits a measuring result to the transmission assembly, and transmits the measuring result to an onshore communication machine through the transmission assembly, thereby realizing remote measurement and remote data transmission of the deep sea structure, and improving the practicability of equipment; comprises an onshore communication machine; the device also comprises a sealing component, a measuring component, a transmission component and a power supply component.
Description
Technical Field
The invention relates to the technical field of on-line monitoring and detection of deep sea structures, in particular to a deep sea structure strain in-situ monitoring device.
Background
Under the action of the self weight, strong wind waves and other factors, metal structures such as deep sea oil gas platforms, offshore wind power facilities and the like face various forms of stress, and in the long-term service process, the local key parts of the metal structures are influenced by corrosion, fatigue and other factors, and the stress can exceed the yield strength limit, so that serious deformation is generated, the whole structure is threatened, and even serious casualties and economic losses are caused. Therefore, for related metal structures, besides the underwater corrosion protection state, the strain condition of key parts of the related metal structures is monitored, so that the related metal structures can be timely alarmed when the deformation quantity of the related metal structures exceeds an early warning line, and safety accidents are avoided.
In the prior art, aiming at deformation detection of deep sea structures, two common means are ROV periodic inspection and optical fiber sensing. Although ROV periodic inspection does not need infrastructure construction, online real-time monitoring cannot be realized, and the later-stage labor and operation cost is high; although the optical fiber sensing can realize on-line real-time monitoring, the construction and equipment cost is high, more importantly, the optical fiber sensing system is greatly influenced by vibration, deformation stress can not be accurately measured in a dynamic environment, and the optical fiber sensing system is easily influenced by underwater ocean current internal waves and has high false alarm rate. The most widely used method on land is to use a sticking strain gauge to measure the stress-strain characteristics of a structure material, the strain gauge is stuck on the surface of the structure to be measured, when the measuring point is strained by stress, the sensitive grid in the strain gauge is deformed along with the strain gauge to change the resistance, and the strain gauge can be converted into a strain value of the measuring point based on the resistance change. However, in a deep sea environment, the strain gage method is affected by background water pressure, and cannot measure tiny deformation stress.
The invention patent with publication number of CN115248092A discloses a sensing device and a sensing method for monitoring the submarine shear stress of a deep sea pipeline, the sensing device comprises a shell, a differential pressure sensor, a sensing probe, a communicating pipe and other components, the sea water is isolated through the shell, the deep sea pressure is borne, and therefore the differential pressure sensor is protected, but the device requires the shell to have certain strength and seawater corrosion resistance, the installation operation is troublesome, the risk of sealing water leakage failure is avoided, in addition, a deep sea structure is mostly unattended, and the real-time transmission of strain monitoring data to the shore and the timely grasping of the state of the structure are also a great problem, so that a deep sea structure strain in-situ monitoring device is needed to improve the problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the deep sea structure strain in-situ monitoring device which is used for protecting a measuring assembly, a transmission assembly and a power supply assembly through the sealing assembly, supplying power to the transmission assembly and the measuring assembly in the sealing assembly through the power supply assembly, sending a measuring command to the measuring assembly through the transmission assembly, detecting a deep sea structure through the measuring assembly, transmitting a measuring result to the transmission assembly, and transmitting the measuring result to an onshore communication machine through the transmission assembly, thereby realizing remote measurement and remote data transmission of the deep sea structure, and improving the practicability of equipment.
The invention relates to a deep sea structure strain in-situ monitoring device, which comprises an onshore communication machine; the on-shore communication device further comprises a sealing assembly, a measuring assembly, a transmission assembly and a power supply assembly, wherein the sealing assembly seals part of the measuring assembly, part of the transmission assembly and the power supply assembly, the measuring assembly measures deep sea structures, the transmission assembly transmits commands and measurement results, the power supply assembly supplies power to the measuring assembly and the transmission assembly, and the on-shore communication device receives detection results; the method comprises the steps of carrying out a first treatment on the surface of the
The part measuring assembly, the part transmission assembly and the power supply assembly are all arranged in the sealing assembly, and the power supply assembly is electrically connected with the transmission assembly and the measuring assembly;
the measuring assembly, the transmission assembly and the power supply assembly are protected through the sealing assembly, the power supply assembly supplies power to the transmission assembly and the measuring assembly in the sealing assembly, then a measuring command is sent to the measuring assembly through the transmission assembly, the deep sea structure is detected through the measuring assembly, a measuring result is transmitted to the transmission assembly, the measuring result is transmitted to the onshore communication machine through the transmission assembly, remote measurement of the deep sea structure and remote transmission of data are achieved, and therefore the practicability of the equipment is improved.
Preferably, the sealing assembly comprises a pressure housing top cover and a pressure housing, and the pressure housing top cover is arranged on the pressure housing; the pressure-resistant shell top cover and the pressure-resistant shell form a sealed space, and the partial measuring assembly, the partial transmission assembly and the power supply assembly are stored in a sealed mode, so that the practicability of the equipment is improved.
Preferably, the power supply assembly comprises an acoustic communication power supply, a clock switch, a main board power supply and a single-chip microcomputer microcontroller, wherein the acoustic communication power supply, the clock switch, the main board power supply and the single-chip microcomputer microcontroller are all arranged in the pressure-resistant shell, the clock switch is connected with the acoustic communication power supply, the acoustic communication power supply and the main board power supply are both transmission assemblies and measurement assemblies in the pressure-resistant shell and are electrically connected, the clock switch is connected with the single-chip microcomputer microcontroller, the switch state is switched according to the time frequency set by the single-chip microcomputer microcontroller, and the power supply time of the acoustic communication power supply is controlled; the transmission assembly and other measurement assemblies in the pressure-resistant shell are respectively powered through the acoustic communication power supply and the main board power supply, and meanwhile, the power supply time of the acoustic communication power supply is controlled according to the time-frequency switching state set by the singlechip microcontroller, so that the practicability of the equipment is improved.
Preferably, the transmission assembly comprises a water surface relay transmission module, an acoustic signal conversion module, a strain processing module, a memory, a background filtering operation circuit and a communication satellite, wherein the acoustic signal transmission module is arranged at the bottom of the pressure-resistant shell, the acoustic signal conversion module, the strain processing module and the memory are all arranged in the pressure-resistant shell, the acoustic signal transmission module is connected with the acoustic signal conversion module, the strain processing module and the memory are all connected with the singlechip microcontroller, the water surface relay transmission module receives data sent by the acoustic signal transmission module, and the communication satellite receives data sent by the water surface relay transmission module; during measurement, an instruction sent by the singlechip microcontroller is converted into an analog signal through the strain processing module, the analog signal is transmitted to the measurement assembly through the background filtering operation circuit, the measurement assembly is enabled to perform measurement, after measurement is completed, the signal sent by the measurement assembly is converted into digital quantity through the strain processing module, the digital quantity converted measurement data are stored in the memory through the singlechip microcontroller, meanwhile, the measurement data are converted into acoustic signals through the acoustic signal conversion module, the acoustic signals are transmitted to the water surface relay transmission module through the acoustic signal transmission module, and then the acoustic signals are converted into electric signals through the water surface relay transmission module and amplified and transmitted to the communication satellite, and the data are transmitted to the on-shore communication machine through the communication satellite, so that the practicability of the device is improved.
Preferably, the measuring assembly comprises a plurality of groups of strain measuring probes, a selection switch, an underwater wet-plug electric connector and a base, wherein the selection switch is arranged in the pressure-resistant shell, the plurality of groups of strain measuring probes are connected with the internal selection switch, the selection switch sequentially conducts on-off in a selective mode according to the instruction of the singlechip microcontroller, the strain measuring probes on the corresponding channels receive or stop receiving analog signals output by the strain processing module to conduct measuring work, the other side of the selection switch is connected with a background filtering operation circuit, when the strain measuring probes measure signals back, the background filtering operation circuit can compare signals of the measuring assembly on the filtering base to obtain real and accurate strain measuring signals of deep sea structures, and the plurality of groups of strain measuring probes are connected with a circuit in the pressure-resistant shell through the underwater wet-plug electric connector; the selection switch is sequentially switched on and off in a selective mode according to the instruction of the singlechip microcontroller, after a certain group of switches are closed, the strain measurement probes on the corresponding channels receive analog signals to measure, measurement is carried out, then the measurement signals are transmitted to the background filtering operation circuit, then one group of switches communicated with the strain measurement probes are controlled by the singlechip microcontroller to be disconnected, the other group of switches are closed, the other group of strain measurement probes are made to carry out measurement, then the measurement signals are transmitted to the background filtering operation circuit, after all the strain measurement probes complete one round of test, the equipment enters a dormant mode until the next timing starts to carry out new measurement, waste of electric quantity is reduced, and therefore the practicability of the equipment is improved.
Preferably, the strain measurement probe comprises two groups of substrate films, two groups of sensitive grids and two groups of laminated films, wherein the two groups of magnetic thin layers and the two groups of laminated films are respectively arranged on the two groups of sensitive grids, one ends of the two groups of substrate films are respectively arranged at the other ends of the two groups of sensitive grids, the other ends of the two groups of substrate films are respectively and fixedly arranged on a deep sea structure and a base, and the base does not deform in a deep sea environment; the sea water is blocked by the laminated films, the sensitive grid is insulated and protected, the substrate films are conveniently adsorbed on the deep sea structure or the base by the magnetism of the magnetic thin layers, the deep sea structure and the base are respectively measured by the two groups of substrate films, the two groups of sensitive grids, the two groups of magnetic thin layers and the two groups of laminated thin films, and the strain condition of the deep sea structure is conveniently judged by comparing the measurement results, so that the practicability of the equipment is improved.
Preferably, the pressure-resistant shell further comprises a timing clock, wherein the timing clock is arranged in the pressure-resistant shell and is connected with the singlechip microcontroller; the device is forced to reset through the timing clock, the reliability of the system is guaranteed, after the device is in place, the singlechip microcontroller controls the strain processing module to automatically perform strain measurement according to the time and the frequency of the timing clock, and the device enters a sleep mode after each round of measurement is completed through the timing clock until the next timing time is up to the next time, so that the practicability of the device is improved.
Preferably, the two groups of substrate films, the two groups of sensitive grids, the two groups of magnetic thin layers and the two groups of laminated films are under the same background water pressure.
Preferably, the base is made of the same material and surface treatment process as the deep sea structure, and the base is of a block-shaped design.
Preferably, the underwater wet-plug electrical connector comprises a male plug and a female plug, wherein the male plug is connected with a plurality of groups of strain measurement probes through a first wire, and the female plug is connected with a guide in the pressure-resistant shell through another group of wires; the male plug is conveniently inserted into the female plug under water, and power is supplied to a plurality of groups of strain measurement probes, so that the practicability of the equipment is improved.
Preferably, the strain processing module comprises a digital-to-analog converter DAC and an analog-to-digital converter ADC, wherein the digital-to-analog converter DAC and the analog-to-digital converter ADC are both arranged in the pressure-resistant shell, one ends of the digital-to-analog converter DAC and the analog-to-digital converter ADC are both connected with the background filtering operation circuit, and the other ends of the digital-to-analog converter DAC and the analog-to-digital converter ADC are both connected with the singlechip microcontroller; the digital-to-analog converter DAC converts the instruction of the single-chip microcomputer microcontroller into an analog signal, the analog signal is transmitted to the background filtering operation circuit, and the analog signal is converted into data by the analog-to-digital converter ADC and is transmitted to the single-chip microcomputer microcontroller, so that the practicability of the device is improved.
Preferably, the pressure housing top cover and the pressure housing are both made of titanium alloy or duplex stainless steel materials, the pressure housing top cover and the pressure housing are fixedly connected through bolts, and a sealing ring is arranged between the pressure housing top cover and the pressure housing.
Preferably, the memory is an SD card data memory;
preferably, the pressure housing is dimensioned cylindrically depending on the size of the other components inside.
Preferably, the top cover of the pressure housing and the pressure housing are impermeable to water under 30Mpa water pressure.
Compared with the prior art, the invention has the beneficial effects that:
1. the base is installed in the same environment of the measuring position on the deep sea structure, the deep sea structure is compared with the measuring result to obtain the strain quantity of the deep sea structure, the measuring result is compared to obtain the strain quantity of the deep sea structure, the measuring accuracy is improved, and the accurate measurement of the strain conditions of different parts of the complex structure is realized;
2. the measuring data is transmitted to the water surface through the transmission component and then transmitted to the satellite, and then transmitted to the shore, so that the remote measurement and remote data transmission of the unattended deep sea structure can be conveniently carried out by staff, and technical support is provided for safe shore monitoring and early warning of the deep sea structure;
3. the intermittent operation of the equipment reduces the energy consumption of the equipment and improves the running time and the measuring times of the equipment;
4. because the strain measurement probe has magnetism, the installation and disassembly convenience is improved, and the strain measurement probe is conveniently electrified underwater through the underwater wet-plug electric connector.
Drawings
FIG. 1 is a schematic diagram of a deep sea structure strain in-situ monitoring device;
FIG. 2 is a schematic cross-sectional view of a strain gauge probe according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of the portion A in FIG. 2 according to the present invention;
the reference numerals in the drawings: 1. a pressure housing top cover; 2. a pressure housing; 3. a strain measurement probe; 301. a base film; 302. a sensitive grid; 303. a magnetic thin layer; 304. laminating the films; 305. a base; 4. a water surface relay transmission module; 5. an acoustic signal transmission module; 6. an acoustic signal conversion module; 7. an acoustic communication power supply; 8. a clock switch; 9. a strain processing module; 901. a digital-to-analog converter DAC; 902. an analog-to-digital converter ADC; 10. a main board power supply; 11. a memory; 12. a singlechip microcontroller; 13. a timing clock; 14. a background filter operation circuit; 15. a selection switch; 16. an underwater wet-plug electrical connector; 1601. male insertion; 1602. a female plug; 17. an onshore communicator; 18. a communication satellite; 19. deep sea structures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. This invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Examples
As shown in fig. 1 to 3, includes an onshore communicator 17; the system further comprises a sealing assembly, a measuring assembly, a transmission assembly and a power supply assembly, wherein the sealing assembly seals part of the measuring assembly, part of the transmission assembly and the power supply assembly, the measuring assembly measures the deep sea structure 19, the transmission assembly transmits the command and the measurement result, the power supply assembly supplies power to the measuring assembly and the transmission assembly, and the shore communication machine 17 receives the detection result;
the part measuring assembly, the part transmission assembly and the power supply assembly are all arranged in the sealing assembly, and the power supply assembly is electrically connected with the transmission assembly and the measuring assembly;
the sealing assembly comprises a pressure housing top cover 1 and a pressure housing 2, wherein the pressure housing top cover 1 is arranged on the pressure housing 2;
the power supply assembly comprises an acoustic communication power supply 7, a clock switch 8, a main board power supply 10 and a single chip microcomputer microcontroller 12, wherein the acoustic communication power supply 7, the clock switch 8, the main board power supply 10 and the single chip microcomputer microcontroller 12 are all arranged in the pressure-resistant shell 2, the clock switch 8 is connected with the acoustic communication power supply 7, the acoustic communication power supply 7 and the main board power supply 10 are both transmission assemblies and measurement assemblies in the pressure-resistant shell 2 and are electrically connected, the clock switch 8 is connected with the single chip microcomputer 12, the switch state is switched according to the time frequency set by the single chip microcomputer microcontroller 12, and the power supply time of the acoustic communication power supply 7 is controlled;
the transmission assembly comprises a water surface relay transmission module 4, an acoustic signal transmission module 5, an acoustic signal conversion module 6, a strain processing module 9, a memory 11, a background filtering operation circuit 14 and a communication satellite 18, wherein the acoustic signal transmission module 5 is arranged at the bottom of the pressure-resistant shell 2, the acoustic signal conversion module 6, the strain processing module 9 and the memory 11 are all arranged in the pressure-resistant shell 2, the acoustic signal transmission module 5 is connected with the acoustic signal conversion module 6, the strain processing module 9 and the memory 11 are all connected with the single-chip microcomputer 12, the water surface relay transmission module 4 receives data sent by the acoustic signal transmission module 5, and the communication satellite 18 receives data sent by the water surface relay transmission module 4;
the measuring assembly comprises a plurality of groups of strain measuring probes 3, a selection switch 15, an underwater wet-plug electric connector 16 and a base 305, wherein the selection switch 15 is arranged in the pressure-resistant shell 2, the plurality of groups of strain measuring probes 3 are connected with the internal selection switch 15, the selection switch 15 is sequentially switched on and off in a selective mode according to the instruction of the single-chip microcomputer 12, the strain measuring probes 3 on corresponding channels receive or stop receiving analog signals output by the strain processing module 9 to carry out measuring work, the other side of the selection switch 15 is connected with the background filtering operation circuit 14, when the strain measuring probes 3 measure signals back, the background filtering operation circuit 14 can compare the signals of the measuring assembly on the filtering base 305 to obtain real and accurate strain measuring signals of the deep sea structure 19, and the plurality of groups of strain measuring probes 3 are connected with a circuit in the pressure-resistant shell 2 through the underwater wet-plug electric connector 16;
the strain measurement probe 3 comprises two groups of substrate films 301, two groups of sensitive grids 302 and two groups of laminated films 304, wherein the two groups of magnetic thin layers 303 and the two groups of laminated films 304 are respectively arranged on the two groups of sensitive grids 302, one ends of the two groups of substrate films 301 are respectively arranged at the other ends of the two groups of sensitive grids 302, the other ends of the two groups of substrate films 301 are respectively fixedly arranged on the deep sea structure 19 and the base 305, and the base 305 does not deform in the deep sea environment;
the pressure-resistant shell is characterized by further comprising a timing clock 13, wherein the timing clock 13 is arranged in the pressure-resistant shell 2, and the timing clock 13 is connected with the singlechip microcontroller 12;
the strain measurement probe 3 comprises two groups of base films 301, two groups of sensitive grids 302, two groups of magnetic thin layers 303, two groups of laminated films 304 and a base 305, wherein the two groups of magnetic thin layers 303 are respectively arranged at one ends of the two groups of sensitive grids 302, the two groups of laminated films 304 are respectively arranged on the two groups of magnetic thin layers 303, one ends of the two groups of base films 301 are respectively arranged at the other ends of the two groups of sensitive grids 302, and the other ends of the two groups of base films 301 are respectively fixedly arranged on the deep sea structure 19 and the base 305;
the underwater wet plug electrical connector 16 comprises a male plug 1601 and a female plug 1602, wherein the male plug 1601 is connected with a plurality of groups of strain measurement probes 3 through a first wire, and the female plug 1602 is connected with a guide in the pressure-resistant shell 2 through another group of wires;
the strain processing module 9 comprises a digital-to-analog converter DAC901 and an analog-to-digital converter ADC902, wherein the digital-to-analog converter DAC901 and the analog-to-digital converter ADC902 are both arranged in the pressure-resistant shell 2, one ends of the digital-to-analog converter DAC901 and the analog-to-digital converter ADC902 are both connected with the background filtering operation circuit 14, and the other ends of the digital-to-analog converter DAC901 and the analog-to-digital converter ADC902 are both connected with the single chip microcomputer 12;
the pressure-resistant shell top cover 1 and the pressure-resistant shell 2 are made of titanium alloy or duplex stainless steel materials, the pressure-resistant shell top cover 1 and the pressure-resistant shell 2 are fixedly connected through bolts, and a sealing ring is arranged between the pressure-resistant shell top cover 1 and the pressure-resistant shell 2;
firstly, the main board power supply 10 supplies power to components except the acoustic signal conversion module 6 in the pressure-resistant shell 2, the acoustic communication power supply 7 and the clock switch 8 are matched to supply power to the acoustic signal conversion module 6 and the acoustic signal transmission module 5, the digital-analog converter DAC901 outputs analog signals according to the instructions of the single-chip microcomputer 12, the analog signals are transmitted to the strain measurement probes 3 through the background filtering operation circuit 14 and the selection switch 15, the selection switch 15 is sequentially switched on and off in a selective mode according to the instructions of the single-chip microcomputer 12, after a certain group of switches are closed, the strain measurement probes 3 on the corresponding channels receive the analog signals to perform measurement, the measurement results on the deep sea structures 19 and the base 305 are simultaneously operated, meanwhile, the measurement signals are transmitted to the background filtering operation circuit 14, after all the strain measurement probes 3 complete one round of test, the measuring signal is transmitted to the background filtering operation circuit 14, the background filtering operation circuit 14 deducts the measuring signal of the strain measuring probe 3 attached to the surface of the deep sea structure 19 from the measuring signal of the contrast strain gauge, thereby obtaining the signal reflecting the real strain condition of the surface of the deep sea structure 19, the signal is transmitted to the analog-digital converter ADC902 after operation processing, the signal is converted into data of data quantity through the analog-digital converter ADC902, the data layer is transmitted to the single chip microcomputer 12 by the analog-digital converter ADC902, the data is saved in the memory 11 by the single chip microcomputer 12, then one group communicated with the strain measuring probe 3 is controlled by the single chip microcomputer 12 to be disconnected, and the other group is closed, so that the other group of strain measuring probes 3 performs measurement work until all the strain measuring probes 3 complete one round of measurement, the timing clock 13 enables the equipment to carry out a sleep mode until the next timing time is up, new measurement is started, then the clock switch 8 is closed according to the instruction of the single-chip microcomputer 12, the acoustic communication power supply 7 supplies power to the acoustic signal conversion module 6 and the acoustic signal transmission module 5, the acoustic signal conversion module 6 converts data into acoustic signals, the acoustic signal transmission module 5 transmits the acoustic signals to the water surface relay transmission module 4, then the clock switch 8 is disconnected according to the instruction of the single-chip microcomputer 12, the acoustic signal conversion module 6 and the acoustic signal transmission module 5 are powered off, intermittent operation of the acoustic signal conversion module 6 and the acoustic signal transmission module 5 is achieved, then the acoustic signal is converted into an electric signal through the water surface relay transmission module 4 and amplified and transmitted to the communication satellite 18, and the data is transmitted to the shore communication satellite 17, so that remote measurement of the deep sea structures 19 and remote transmission of the data are achieved.
The main functions realized by the invention are as follows: the measurement accuracy is improved, the remote detection convenience is improved, and the running time and the measurement times are improved;
1. measurement accuracy is improved: by simultaneously measuring the deep sea structure 19 and the base 305 and comparing the measurement results, the strain capacity of the deep sea structure 19 is obtained
2. Remote detection convenience is improved: processing the measurement signal by the transmission component to obtain measurement data, transmitting the measurement data to the water surface, transmitting the measurement data to a satellite, and transmitting the measurement data to the shore
3. The running time and the measuring times are improved: the energy consumption of the equipment is reduced by intermittent operation of the equipment.
The shore communication machine 17 and the communication satellite 18 of the deep sea structure strain in-situ monitoring device are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction without creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. The in-situ monitoring device for the strain of the deep sea structure comprises an onshore communication machine (17); the marine deep sea structure detection device is characterized by further comprising a sealing assembly, a measuring assembly, a transmission assembly and a power supply assembly, wherein the sealing assembly seals part of the measuring assembly, part of the transmission assembly and the power supply assembly, the measuring assembly measures a deep sea structure (19), the transmission assembly transmits a command and a measurement result, the power supply assembly supplies power to the measuring assembly and the transmission assembly, and an onshore communication machine (17) receives a detection result;
the partial measuring assembly, the partial transmitting assembly and the power supply assembly are all installed in the sealing assembly, and the power supply assembly is electrically connected with the transmitting assembly and the measuring assembly.
2. A deep sea structure strain in-situ monitoring device as claimed in claim 1, wherein the seal assembly comprises a pressure housing top cover (1) and a pressure housing (2), the pressure housing top cover (1) being mounted on the pressure housing (2).
3. The deep sea structure strain in-situ monitoring device according to claim 2, wherein the power supply assembly comprises an acoustic communication power supply (7), a clock switch (8), a main board power supply (10) and a single chip microcomputer (12), the acoustic communication power supply (7), the clock switch (8), the main board power supply (10) and the single chip microcomputer (12) are all arranged in the pressure-resistant shell (2), the clock switch (8) is connected with the acoustic communication power supply (7), and the acoustic communication power supply (7) and the main board power supply (10) are both transmission assemblies and measurement assemblies in the pressure-resistant shell (2) and are electrically connected; the sound communication power supply (7) and the main board power supply (10) are respectively used for supplying power to the transmission assembly of the pressure-resistant shell (2) and other measurement assemblies, wherein the clock switch (8) is connected with the single-chip microcomputer microcontroller (12), and the power supply time of the sound communication power supply (7) is controlled according to the time-frequency switching state set by the single-chip microcomputer microcontroller (12).
4. A deep sea structure strain in-situ monitoring device according to claim 3, wherein the transmission component comprises a water surface relay transmission module (4), an acoustic signal transmission module (5), an acoustic signal conversion module (6), a strain processing module (9), a memory (11), a background filtering operation circuit (14) and a communication satellite (18), the acoustic signal transmission module (5) is installed at the bottom of the pressure-resistant shell (2), the acoustic signal conversion module (6), the strain processing module (9) and the memory (11) are all installed in the pressure-resistant shell (2), the acoustic signal transmission module (5) is connected with the acoustic signal conversion module (6), the strain processing module (9) and the memory (11) are all connected with the single chip microcomputer microcontroller (12), and the water surface relay transmission module (4) receives data sent by the acoustic signal transmission module (5) and the communication satellite (18) receives data sent by the water surface relay transmission module (4).
5. The deep sea structure strain in-situ monitoring device according to claim 4, wherein the measuring assembly comprises a plurality of groups of strain measuring probes (3), a selection switch (15), an underwater wet-plug electrical connector (16) and a base (305), the selection switch (15) is arranged in the pressure-resistant housing (2), the plurality of groups of strain measuring probes (3) are connected with the internal selection switch (15), the selection switch (15) is sequentially switched on and off in a selective mode according to the instruction of the singlechip microcontroller (12), the strain measuring probes (3) on the corresponding channels receive or stop receiving analog signals output by the strain processing module (9) to perform measurement work, the other side of the selection switch (15) is connected with a background filtering operation circuit (14), and when the strain measuring probes (3) measure signals back, the background filtering operation circuit (14) can compare signals of the measuring assembly on the filtering base (305) to obtain real and accurate strain measuring signals of the deep sea structure (19), and the plurality of groups of strain measuring probes (3) are connected with a circuit in the pressure-resistant housing (2) through the underwater wet-plug electrical connector (16).
6. A deep sea structure strain in-situ monitoring device according to claim 5, wherein the strain measuring probe (3) comprises two groups of base films (301), two groups of sensitive grids (302) and two groups of laminated films (304), the two groups of magnetic thin layers (303) and the two groups of laminated films (304) are respectively arranged on the two groups of sensitive grids (302), one end of the two groups of base films (301) is respectively arranged at the other ends of the two groups of sensitive grids (302), and the other ends of the two groups of base films (301) are respectively fixedly arranged on the deep sea structure (19) and the base (305), and the base (305) does not deform in a deep sea environment.
7. A deep sea structure strain in-situ monitoring device as claimed in claim 3, further comprising a timing clock (13), wherein the timing clock (13) is mounted inside the pressure-resistant housing (2), and the timing clock (13) is connected with the single-chip microcomputer (12).
8. A deep sea structure strain in-situ monitoring device as claimed in claim 5 wherein the subsea wet plug electrical connector (16) comprises a male plug (1601) and a female plug (1602), the male plug (1601) being connected to a plurality of sets of strain gauge probes (3) by a first wire and the female plug (1602) being connected to a guide within the pressure housing (2) by another set of wires.
9. A deep sea structure strain in-situ monitoring device as claimed in claim 4, wherein the strain processing module (9) comprises a digital-to-analog converter DAC (901) and an analog-to-digital converter ADC (902), the digital-to-analog converter DAC (901) and the analog-to-digital converter ADC (902) are both installed inside the pressure-resistant housing (2), one end of the digital-to-analog converter DAC (901) and one end of the analog-to-digital converter ADC (902) are both connected with the background filtering operation circuit (14), and the other end of the digital-to-analog converter DAC (901) and the other end of the analog-to-digital converter ADC (902) are both connected with the single chip microcomputer (12).
10. A deep sea structure strain in-situ monitoring device as claimed in claim 2, wherein the pressure housing top cover (1) and the pressure housing (2) are both made of titanium alloy or duplex stainless steel materials, the pressure housing top cover (1) and the pressure housing (2) are fixedly connected through bolts, and a sealing ring is arranged between the pressure housing top cover (1) and the pressure housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311184257.2A CN117470087A (en) | 2023-09-13 | 2023-09-13 | Deep sea structure strain in-situ monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311184257.2A CN117470087A (en) | 2023-09-13 | 2023-09-13 | Deep sea structure strain in-situ monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117470087A true CN117470087A (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311184257.2A Pending CN117470087A (en) | 2023-09-13 | 2023-09-13 | Deep sea structure strain in-situ monitoring device |
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| Country | Link |
|---|---|
| CN (1) | CN117470087A (en) |
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2023
- 2023-09-13 CN CN202311184257.2A patent/CN117470087A/en active Pending
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