CN117908136A - Underwater target detection system - Google Patents
Underwater target detection system Download PDFInfo
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- CN117908136A CN117908136A CN202311658442.0A CN202311658442A CN117908136A CN 117908136 A CN117908136 A CN 117908136A CN 202311658442 A CN202311658442 A CN 202311658442A CN 117908136 A CN117908136 A CN 117908136A
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses an underwater target detection system which comprises a watertight cabin, a protection structure, a triaxial alternating-current magnetic field sensor, a triaxial vibration sensor, a triaxial attitude sensor, a water pressure sensor, an acoustic receiver, a control panel, a data acquisition circuit, an internal memory module and a power supply battery, wherein the watertight cabin is provided with a plurality of sensors; the three-axis alternating-current magnetic field sensor and the acoustic receiver are arranged at the upper part outside the watertight cabin and protected by the protective structure, the water pressure sensor is arranged on the watertight cabin, and the three-axis vibration sensor, the three-axis attitude sensor, the data acquisition circuit, the control board, the internal memory module and the power supply battery are arranged in the watertight cabin; the outdoor sensor is connected with the data acquisition circuit through a watertight electric connector; the three-axis alternating current magnetic field sensor measures a target three-axis alternating current magnetic field signal, the three-axis vibration sensor receives a target three-axis seismic wave signal, the three-axis attitude sensor measures the attitude of the system, and three sensors are mutually orthogonal among three axes. The invention enables the ability to detect and identify objects in water.
Description
Technical Field
The invention relates to the technical field of target detection equipment, in particular to an underwater target detection system.
Background
With the gradual maturation of stealth technology, the noise generated by modern advanced underwater vehicles in the navigation process is more and more close to the background noise of the ocean, and the noise of some ultra-silent underwater vehicles is even lower than the background noise of the ocean. In addition, the mechanical structures and components of modern underwater vehicles are mainly made of high-strength nonmetallic materials and low-magnetic alloys. Traditional single detection means or combined detection methods based on physical fields such as sound, magnetism and electricity are increasingly difficult to identify, track and position targets. Therefore, a system for jointly detecting the target multi-physical-field characteristic signals based on physical fields such as sound, electromagnetic, seismic waves and the like under the ocean complex strong noise background is needed at present, and the problem that weak underwater vehicle target physical-field signals cannot be detected under the strong noise background is overcome.
Disclosure of Invention
In view of this, the present invention provides an underwater target detection system that is capable of providing the ability to detect and identify targets in water.
The technical scheme adopted by the invention is as follows:
An underwater target detection system comprises a watertight cabin, a protective structure, a triaxial alternating-current magnetic field sensor, a triaxial vibration sensor, a triaxial attitude sensor, a water pressure sensor, an acoustic receiver, a control board, a data acquisition circuit, an internal memory module and a power supply battery;
The triaxial alternating-current magnetic field sensor and the acoustic receiver are of watertight structures, are arranged outside the watertight cabin, the water pressure sensor is arranged on the watertight cabin, and the triaxial vibration sensor, the triaxial attitude sensor, the data acquisition circuit, the control panel, the internal memory module and the power supply battery are arranged in the watertight cabin; the cabin outer sensor is connected with the cabin inner data acquisition circuit through a watertight electric connector, is arranged at the upper part of the watertight cabin and is protected by a protection structure;
The three-axis alternating current magnetic field sensor measures a three-axis alternating current magnetic field signal of a target, the three-axis vibration sensor receives a three-axis seismic wave signal of the target, the three-axis attitude sensor measures the attitude of the system, and the three axes of the three-axis alternating current magnetic field sensor, the three-axis vibration sensor and the three-axis attitude sensor are mutually orthogonal.
Further, the watertight electric connector is arranged on the watertight cabin from outside to inside, and a watertight structure is formed at the joint; the water pressure sensor is arranged on the watertight cabin from inside to outside, the water pressure sensor probe is communicated with the outside of the cabin, and a watertight structure is formed at the joint.
Further, the control board, the data acquisition circuit and the power supply battery are fixedly arranged at the bottom of the watertight cabin, and the weight in the cabin is ensured to be centered by the layout.
Further, a counterweight lead block is arranged in the watertight cabin, and the counterweight lead block is fixedly arranged at the bottom of the cabin.
Further, the protection structure comprises a support frame and a protection cover;
The support frame and the protective cover are hollow structures and are circumferentially symmetrical structures, and stainless steel materials are adopted; the lower part of the support frame is connected with the watertight compartment, the upper part of the support frame is connected with the protective cover, the top of the protective cover is provided with a hanging ring, the contact part between the support frame and the protective cover is provided with an insulating isolation sleeve, and an electric circuit breaker is formed between the support frame and the protective cover.
Further, the alternating current magnetic field sensor forms a triaxial orthogonal structure through an orthogonal mounting seat, the orthogonal mounting seat is fixedly mounted on the support frame through a mounting plate, and the mounting center position of the triaxial alternating current magnetic field sensor is higher than the support frame.
Further, the sound receiver is fixedly arranged on the mounting plate, and the sound receiver probe is higher than the orthogonal mounting seat to form a shielding-free structure.
The beneficial effects are that:
1. The invention further excavates the physical characteristics of the existing underwater targets by measuring the AC magnetic field signals, the seismic wave signals and the position, depth and posture information of the detection system, establishes a novel underwater target detection device, forms the capability of detecting and identifying the underwater targets, provides a novel device and method for detecting the underwater targets, enhances the detection means of the existing underwater targets, and provides theory and data support for a novel target detection mechanism. Meanwhile, the system can be fixedly arranged at a definite place at a certain position to detect and identify targets with alternating magnetic fields and seismic wave characteristic signals in water, land and air.
2. The support frame and the protective cover can effectively protect the cabin outer installation equipment, and the support frame and the protective cover are of hollow structures, so that the system flow-facing area can be reduced; the lifting ring is arranged at the top of the protective cover, so that the lifting requirement of the system in transportation and operation can be met.
3. The support frame and the protective cover are of a circumferentially symmetrical structure, and the layout of the components in the watertight cabin is symmetrical, so that the weight in the cabin is basically centered, and the posture of the detection system in water is good in stability.
4. The counterweight lead block is arranged in the watertight cabin, so that the buoyancy of the system can be overcome, and the stable bottoming posture can be ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the sealed cabin of the present invention;
Fig. 3 is a schematic diagram of the overall structure of the three-axis attitude sensor shafting of the alternating-current magnetic field sensor and the three-axis vibration sensor.
The device comprises a 1-lifting ring, a 2-protective cover, a 3-triaxial alternating current magnetic field sensor, a 4-acoustic receiver, a 5-orthogonal mounting seat, a 6-insulating isolation sleeve, a 7-mounting plate, an 8-sealing cover, a 9-supporting frame, a 10-watertight electric connector, an 11-water pressure sensor, a 12-control board, a 13-data acquisition circuit, a 14-internal memory module, a 15-sealing cabin, a 16-counterweight lead block, a 17-vibration sensor mounting seat, an 18-triaxial vibration sensor, a 19-seismic wave signal processing module, a 20-power supply battery and a 21-triaxial attitude sensor.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
The invention provides an underwater target detection system, which is shown in fig. 1 and 2 and comprises a lifting ring 1, a protective cover 2, a triaxial alternating current magnetic field sensor 3, an acoustic receiver 4, an orthogonal mounting seat 5, a mounting plate 7, a sealing cover 8, a supporting frame 9, a watertight electric connector 10, a water pressure sensor 11, a control plate 12, a data acquisition circuit 13, an internal memory module 14, a sealing cabin 15, a counterweight lead block 16, a vibration sensor mounting seat 17, a triaxial vibration sensor 18, a seismic wave signal processing module 19, a power supply battery 20 and a triaxial attitude sensor 21.
The triaxial ac magnetic field sensor 3 is mounted in a pairwise orthogonal manner by the orthogonal mounting seat 5 to form an orthogonal coordinate system of O 1X1Y1Z1, and the orthogonality errors among the O 1X1 axis, the O 1Y1 axis and the O 1Z1 axis are required to be smaller than 0.2 degrees. The orthogonal mount pad 5 fixed mounting is on mounting panel 7, and sound receiver 4 probe is higher than orthogonal mount pad 5, forms the structure of not sheltering from, and mounting panel 7 fixed mounting is on the lower side board of support frame 9. The sealing cover 8 is installed on the lower side of the supporting frame 9, the protective cover 2 is installed on the upper side, the lifting ring 1 is installed on the top end of the protective cover 2, the upper side plate of the supporting frame 9 is in threaded connection with the protective cover 2, the insulating isolation sleeve 6 is installed on the contact part, and an electric circuit breaker is formed between the supporting frame 9 and the protective cover 2. The triaxial alternating current magnetic field sensor 3, the orthogonal mounting seat 5, the mounting plate 7 and the acoustic receiver 4 are all positioned in the protective cover 2, so that a structure with basically symmetrical appearance and centered weight is formed. The support frame 9 and the protection cover 2 are of a circumferentially symmetrical structure, form a protection structure and can effectively protect the cabin outer installation equipment. In normal use, the sealed cabin 15 is stabilized at the water bottom, and the protective cover 2 is vertically upwards. The support frame 9 and the protective cover 2 are made of low-magnetic stainless steel bars and stainless steel plates, and are processed to form a hollow structure, so that the system flow area is reduced.
The watertight electric connector 10 (6 paths in the embodiment) is installed on the sealing cover 8 from outside to inside, and the joint forms a watertight structure, so that the signal transmission of the triaxial alternating current magnetic field sensor 3, the signal transmission of one acoustic receiver 4, the data recovery of one acoustic receiver are realized, and the battery charging and the system power-on are met. The triaxial alternating current magnetic field sensor 3 and the acoustic receiver 4 are connected with the watertight electric connector 10 through watertight cables to form electric connection with the watertight cabin. The water pressure sensor 11 is arranged on the sealing cover 8 from inside to outside, the probe of the water pressure sensor 11 is communicated with the outside of the cabin, and a watertight structure is formed at the joint of the probe and the sealing cover 8.
The sealed cabin body 15 and the sealing cover 8 form a watertight cabin through radial sealing, and the watertight cabin is of a circumferentially symmetrical structure, can meet the installation requirements of all non-watertight structures, and is fixed on the lower side plate of the support frame 9 through screws. The sealing cabin body 15 and the sealing cover 8 are made of nonmagnetic alloy materials, and a watertight structure is adopted between the sealing cabin body and the sealing cover, so that the working water depth requirement of a target detection system can be met.
As shown in fig. 2 and 3, the triaxial vibration sensor 18 is mounted in a pair by pair orthogonal to each other by the vibration sensor mount 17 to form an orthogonal coordinate system of O 2X2Y2Z2, and the orthogonality error between the O 2X2 axis, the O 2Y2 axis, and the O 2Z2 axis is required to be smaller than 0.2 °. The vibration sensor mounting seat 17 is fixedly mounted on the bottom surface of the sealed cabin 15. The control board 12, the data acquisition circuit 13, the internal memory module 14, the seismic wave signal processing module 19, the power supply battery 20 and the three-axis attitude sensor 21 are fixedly arranged on the bottom surface of the sealed cabin body 15, and form electrical communication between the inside and outside of the cabin and each part in the cabin with the watertight electric connector 10, so that the layout of the group parts in the watertight cabin is symmetrical, and the weight in the cabin is ensured to be basically centered. Wherein, the three-axis attitude sensor 21 forms an orthogonal axis system of O 3X3Y3Z3, and the orthogonality error among the O 3X3 axis, the O 3Y3 axis and the O 3Z3 axis is required to be less than 0.2 degrees in component selection. In three orthogonal coordinate systems which simultaneously meet O1X1Y1Z1、O2X2Y2Z2、O3X3Y3Z3 in installation, the axial parallelism error among three groups of shafting of the O 1X1 shaft, the O 2X2 shaft, the O 3X3 shaft, the O 1Y1 shaft, the O 2Y2 shaft, the O 3Y3 shaft, the O 1Z1 shaft, the O 2Z2 shaft and the O 3Z3 shaft is smaller than 0.5 degrees. The orthogonality error and parallelism error are corrected by an algorithm.
The counterweight lead block 16 is arranged on the bottom surface of the sealed cabin body 15, the height and the size of the counterweight lead block 16 are smaller, the gravity center of the system is ensured to be lower than that of the floating center, and the weight of the counterweight lead block 16 can overcome the buoyancy of the system and ensure the stability of the bottoming posture. In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An underwater target detection system is characterized by comprising a watertight cabin, a protection structure, a triaxial alternating current magnetic field sensor, a triaxial vibration sensor, a triaxial attitude sensor, a water pressure sensor, an acoustic receiver, a control panel, a data acquisition circuit, an internal memory module and a power supply battery;
The triaxial alternating-current magnetic field sensor and the acoustic receiver are of watertight structures, are arranged outside the watertight cabin, the water pressure sensor is arranged on the watertight cabin, and the triaxial vibration sensor, the triaxial attitude sensor, the data acquisition circuit, the control panel, the internal memory module and the power supply battery are arranged in the watertight cabin; the cabin outer sensor is connected with the cabin inner data acquisition circuit through a watertight electric connector, is arranged at the upper part of the watertight cabin and is protected by a protection structure;
The three-axis alternating current magnetic field sensor measures a three-axis alternating current magnetic field signal of a target, the three-axis vibration sensor receives a three-axis seismic wave signal of the target, the three-axis attitude sensor measures the attitude of the system, and the three axes of the three-axis alternating current magnetic field sensor, the three-axis vibration sensor and the three-axis attitude sensor are mutually orthogonal.
2. An underwater target detection system as in claim 1 wherein the watertight electrical connector is mounted on the watertight compartment from the outside inwards forming a watertight structure at the connection; the water pressure sensor is arranged on the watertight cabin from inside to outside, the water pressure sensor probe is communicated with the outside of the cabin, and a watertight structure is formed at the joint.
3. The underwater target detection system of claim 1 wherein the control board, the data acquisition circuit and the power supply battery are fixedly mounted at the bottom of the watertight compartment, and the layout ensures weight centering in the compartment.
4. An underwater target detection system as in claim 1 wherein a weighted lead block is mounted within the watertight compartment, the weighted lead block being fixedly mounted to the bottom of the compartment.
5. An underwater target detection system as in any of claims 1-4 wherein the guard structure comprises a support frame and a shield;
The support frame and the protective cover are hollow structures and are circumferentially symmetrical structures, and stainless steel materials are adopted; the lower part of the support frame is connected with the watertight compartment, the upper part of the support frame is connected with the protective cover, the top of the protective cover is provided with a hanging ring, the contact part between the support frame and the protective cover is provided with an insulating isolation sleeve, and an electric circuit breaker is formed between the support frame and the protective cover.
6. The underwater target detection system of claim 5, wherein the ac magnetic field sensor forms a three-axis quadrature structure by a quadrature mount fixedly mounted on the support frame by a mounting plate, and the three-axis ac magnetic field sensor is mounted at a center position higher than the support frame.
7. An underwater target detection system as in claim 5 wherein the acoustic receiver is fixedly mounted on the mounting plate and the acoustic receiver probe is higher than the quadrature mounting block to form an unobstructed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311658442.0A CN117908136A (en) | 2023-12-06 | 2023-12-06 | Underwater target detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311658442.0A CN117908136A (en) | 2023-12-06 | 2023-12-06 | Underwater target detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117908136A true CN117908136A (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311658442.0A Pending CN117908136A (en) | 2023-12-06 | 2023-12-06 | Underwater target detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117908136A (en) |
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2023
- 2023-12-06 CN CN202311658442.0A patent/CN117908136A/en active Pending
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