CN113311503A - Underwater acoustic-magnetic-electric integrated target detection device, method and application - Google Patents
Underwater acoustic-magnetic-electric integrated target detection device, method and application Download PDFInfo
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- CN113311503A CN113311503A CN202110584991.2A CN202110584991A CN113311503A CN 113311503 A CN113311503 A CN 113311503A CN 202110584991 A CN202110584991 A CN 202110584991A CN 113311503 A CN113311503 A CN 113311503A
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Abstract
The invention belongs to the technical field of underwater target detection, and discloses an underwater acoustic-magnetic-electric integrated target detection device, a method and application, wherein a watertight electronic cabin is arranged on the upper side of a base seat in the underwater acoustic-magnetic-electric integrated target detection device, and an underwater physical field data acquisition and processing instrument is arranged in the watertight electronic cabin; a pressure sensor is installed on the upper right side of the watertight electronic cabin, an electric field receiver is arranged in the middle of the upper side of the watertight electronic cabin, and an acoustic-magnetic composite receiver is arranged on the upper side of the electric field receiver. The detection socket is installed to watertight electronics cabin upside, and the watertight electronics cabin left and right sides is provided with first little buoy of retrieving and the little buoy of second retrieval respectively, and first little buoy of retrieving and the little buoy of second retrieval are connected with retrieving the rope respectively. The underwater target detection method can meet the requirement that people can reliably detect underwater targets under increasingly common environments with low signal-to-noise ratio, multiple interferences and strong countermeasures.
Description
Technical Field
The invention belongs to the technical field of underwater target detection, and particularly relates to an underwater acoustic-magnetic-electric integrated target detection device, method and application.
Background
At present, passive detection of underwater targets mainly utilizes various physical fields generated by the target, such as sound field, magnetic field, electric field, and the like. However, in the environment with low signal-to-noise ratio, multiple interferences and strong countermeasures, the traditional single physical field detection means generally has the defects of difficult reliable identification, easy environmental interference false alarm, easy artificial countermeasures and failure and the like. Particularly, in recent years, with the great improvement of stealth performance of various targets, the strength of physical fields of the targets, such as sound, magnetism, electricity and the like, is lower and lower, and the detection is more and more difficult; meanwhile, underwater countermeasure means such as artificial simulation interference and the like are enriched, and the characteristics of a single physical field are easier to be simulated artificially, so that the defects of the traditional single physical field detection means are more prominent.
The generation sources and mechanisms of sound, magnetism and electric field of the target are different and exist simultaneously in a certain space-time range, for example, the main source of sound is vibration radiation noise of the target, rotation noise of a propeller and the like, the main source of magnetism is magnetization of a ferromagnetic structure of the target in a geomagnetic field and the like, and the main source of electricity is electrochemical corrosion between different materials of the target and the like. For the same target, the acoustic, magnetic and electric field signal characteristics are observed simultaneously, so that more information than single sound/single magnetism/single electricity can be obtained, the information is homologous, can be mutually verified and supplemented, and the detection probability of the target is favorably improved. And the environmental interference does not have the identity in time and space, so that the target and the interference are easier to distinguish, and false alarm is less easy to occur. In addition, because the generation mechanisms of the sound, the magnetism and the electric field of the target are different, the sound, the magnetism and the electric field are difficult to artificially eliminate simultaneously, and the detection is further difficult to interfere by artificially simulating the characteristics of the sound, the magnetism and the electric field of the target, even limited by space, energy, cost and the like, and cannot be synchronously realized, so that the acoustomagnetic-electric integrated detection of the target has great advantages in the aspect of preventing the detection from being influenced by means of artificial elimination, artificial simulation interference and the like. In a word, the underwater acoustic-magnetic-electric integrated target detection device simultaneously utilizes the information of a sound field, a magnetic field and an electric field of a target, does not utilize a certain physical field in an isolated manner, but treats the three fields as a whole, realizes the reliable detection of the underwater target by utilizing the coupling and complementarity of multi-field characteristics, and has the characteristics of low false alarm, low missing detection, ocean environment interference resistance or strong interference resistance of artificial simulation and the like.
Through the above analysis, the problems and defects of the prior art are as follows: the existing underwater target detection device only uses one physical field, such as sound detection or magnetic detection or electric detection. The detection information of a single physical field is limited (for example, only one curve of information in fig. 4), and the defects of difficult reliable identification, easy environmental interference false alarm, easy artificial countermeasure failure and the like exist, so that the requirement of people on reliably detecting underwater targets under increasingly common low signal-to-noise ratio, multi-interference and strong countermeasure environments cannot be met.
The difficulty in solving the above problems and defects is: the detection information of a single physical field is limited (for example, only one curve of information is shown in fig. 4), the single physical field is easily missed in case of low signal-to-noise ratio, and is easily false-alarmed in case of more environmental interference, and the single physical field is also easily artificially simulated with corresponding characteristics, resulting in failure of countermeasure.
The significance of solving the problems and the defects is as follows: the invention can simultaneously utilize information (such as 3 curves in fig. 4) of a plurality of physical fields of sound, magnetism, electricity and the like of the target at the same point, can obtain more target characteristics, and can not cause the failure of the task of whole target detection because of the deviation of certain physical field information. Various types of information such as sound, magnetism, electricity and the like of the target can be mutually verified and supplemented, the more the information is, the more accurate and reliable result is, and therefore the detection probability of the target is favorably improved under the condition of low signal to noise ratio. And the environmental interference does not have the identity in time and space, so that the target and the interference are easier to distinguish, and false alarm is less easy to occur. In addition, because the generation mechanisms of the sound, the magnetism and the electric field of the target are different, the sound, the magnetism and the electric field are difficult to artificially eliminate simultaneously, and the detection is further difficult to interfere by artificially simulating the characteristics of the sound, the magnetism and the electric field of the target, even limited by space, energy, cost and the like, and cannot be synchronously realized, so that the acoustomagnetic-electric integrated detection of the target has great advantages in the aspect of preventing the detection from being influenced by means of artificial elimination, artificial simulation interference and the like.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an underwater acoustic-magnetic-electric integrated target detection device, method and application. The invention adopts a bottom-sitting type structure, has compact structure, can be distributed in a mode of directly throwing water, and releases the small buoy for recycling through timing or according to a remote control instruction; the underwater target detection device can automatically work by depending on an internal power supply after being distributed, can synchronously receive sound field, magnetic field and electric field signals of the target, realizes reliable detection of the underwater target by utilizing the coupling and complementarity of multi-field characteristics, has the characteristics of low false alarm, low omission, ocean environment interference resistance or strong artificial simulation interference resistance and the like, and meets the requirements of people on reliable detection of the underwater target under increasingly common low signal-to-noise ratio, multi-interference and strong interference resistance environments.
The invention is realized in this way, an underwater acoustic-magnetic-electric integrated target detection device, which is provided with:
a seat bottom base;
the upper side of the seat bottom base is provided with a watertight electronic cabin, and an underwater physical field data acquisition and processing instrument is arranged in the watertight electronic cabin;
a pressure sensor is installed on the upper right side of the watertight electronic cabin, an electric field receiver is arranged in the middle of the upper side of the watertight electronic cabin, and an acoustic-magnetic composite receiver is arranged on the upper side of the electric field receiver.
Further, the detection socket is installed to watertight electronics cabin upside.
Furthermore, the left side and the right side of the watertight electronic cabin are respectively provided with a first recovery small buoy and a second recovery small buoy, and the first recovery small buoy and the second recovery small buoy are respectively connected with the recovery rope.
Further, the acoustic-magnetic composite receiver adopts a circular tube type structure, an internal cylindrical cavity is used for mounting the magnetic receiver, and polyurethane acoustic rubber and waterproof glue are coated on the outside of the magnetic receiver to ensure water tightness.
Furthermore, the acoustic-magnetic composite receiver is connected with the shell of the three-component electric field receiver through a support rod.
Furthermore, the electric field receiver is installed by 6 electrodes in opposite directions and is fixed on a top cover of the watertight electronic cabin through a support, and a water inlet hole is reserved in the protective shell.
Another object of the present invention is to provide an underwater acoustic-magnetic-electric integrated target detection method of the underwater acoustic-magnetic-electric integrated target detection device, where the underwater acoustic-magnetic-electric integrated target detection method includes:
the acoustic-magnetic composite receiver converts the sound field signal and the magnetic field signal of the target into analog electric signals and transmits the analog electric signals to the underwater multi-physical-field data acquisition and processing instrument;
the electric field receiver converts the electric field signal of the target into an analog electric signal and transmits the analog electric signal to the underwater multi-physical field data acquisition and processing instrument;
the pressure sensor measures the depth of seawater, and the detection socket is externally connected with detection equipment to perform function detection, parameter presetting, working state setting, data reading and the like on the device;
the battery pack is used for providing a stable working power supply for the device, and the bottom base provides sufficient negative buoyancy and stable bottom posture for the device; the recovery small buoy is used for recovering the device and releasing and recovering the device at regular time or according to a remote control command;
the method specifically comprises the following steps:
before the device is laid, the device is detected by detecting external detection equipment of the socket, and after the detection is passed, a working mode is selected, working parameters are set and the like, so that the device enters a dormant state;
throwing the device into water from the side of the ship, sinking the device by means of self gravity, and adjusting self posture to be vertical to the bottom of the seat by means of the configured mass center during sinking;
after the device sits on the ground, the underwater multi-physical-field data acquisition and processing instrument sends out a wake-up signal after timing or receiving an acoustic remote control instruction, and the device starts to be electrified to enter a working state;
the self-checking is completed after the electrification, the acoustic-magnetic composite receiver and the electric field receiver start to synchronously receive acoustic, magnetic and electric field signals after the self-checking is successful, and the pressure sensor starts to measure the depth of the seawater and respectively transmits the seawater to the underwater multi-physical-field data acquisition and processing instrument;
the underwater multi-physical-field data acquisition and processing instrument synchronously acquires and processes sound, magnetism and electric field signals and seawater depth signals to give a target detection result, packs multi-field original data, processing results, system state parameters and the like and stores the packed data in a data storage module;
when the timing time is up or after an acoustic remote control instruction is received, the device stops working, the underwater multi-physical-field data acquisition and processing instrument sends out a control signal to release the small buoy, and the device is fished out of water by utilizing a fishing rope tied by the buoy;
after the recovery, the detection of the device is completed by reading and analyzing the stored data through the detection equipment externally connected with the socket.
Furthermore, the overall working time sequence of the underwater multi-physical-field data acquisition and processing instrument control system, the electric signals output by the sound, magnetic or electric field receivers, the target sound, magnetic or electric field data are acquired and stored, the target detection results are given after various data are fused and processed, and power supply conversion and distribution management are realized.
The invention also aims to provide an underwater target detection terminal, which is provided with the underwater acoustic-magnetic-electric integrated target detection device.
The invention also aims to provide an underwater acoustic-magnetic-electric integrated target detection device, which is provided with the underwater acoustic-magnetic-electric integrated target detection device.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention has compact structure, light weight and small volume, can be distributed by directly throwing water, works after distributing the back seat bottom, has fixed position and better posture stability, and releases the small buoy for recycling by timing or according to a remote control command, thereby having less limitation on the distribution platform and the facility configuration in the distribution and recycling process, low requirement, simple and convenient operation and low use cost.
The underwater target detection device disclosed by the invention can automatically work by depending on an internal power supply after being arranged, does not need personnel to control, can synchronously receive sound field, magnetic field and electric field signals of a target, and realizes the reliable detection of the underwater target by utilizing the coupling and complementarity of multi-field characteristics, has the characteristics of low false alarm, low omission, strong marine environment interference resistance or artificial simulation interference resistance and the like, and meets the requirements of people on the reliable detection of the underwater target in increasingly common low signal-to-noise ratio, multi-interference and strong interference resistance environments.
Drawings
Fig. 1 is a schematic structural diagram of an underwater acoustic-magnetic-electric integrated target detection device provided by an embodiment of the invention.
Fig. 2 is a schematic diagram of the laying and target detection operations provided in the embodiment of the present invention.
Fig. 3 is a block diagram of a workflow provided by an embodiment of the present invention.
Fig. 4 is a schematic diagram of a target sound field strength, a magnetic field strength and a time-passage curve of an electric field strength which are received synchronously according to an embodiment of the present invention.
In the figure: 1. detecting the socket; 2. an underwater physical field data acquisition and processing instrument; 3. a watertight electronic compartment; 4. a first recovery small buoy; 5. an acousto-magnetic composite receiver; 6. an electric field receiver; 7. a pressure sensor; 8. a battery pack; 9. a second recovery small buoy; 10. a base seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides an underwater acoustic-magnetic-electric integrated target detection device, a method and application thereof, and the invention is described in detail below with reference to the accompanying drawings.
A person skilled in the art of the underwater acoustic-magnetic-electric integrated target detection device provided by the present invention may also use other steps to implement, and the underwater acoustic-magnetic-electric integrated target detection device provided by the present invention in fig. 1 is only one specific embodiment.
As shown in fig. 1, the underwater acoustic-magnetic-electric integrated target detection device provided by the embodiment of the present invention is of a bottom-sitting type configuration, a watertight electronic cabin 3 is installed on an upper side of a bottom-sitting base 10, and a first recovery small buoy 4 and a second recovery small buoy 9 are respectively arranged on left and right sides of the watertight electronic cabin 3.
An underwater physical field data acquisition and processing instrument 2 is arranged in the watertight electronic cabin 3, a pressure sensor 7 is arranged on the upper right side of the watertight electronic cabin 3, and a detection socket 1 is arranged on the upper left side of the watertight electronic cabin 3; an electric field receiver 6 is arranged in the middle of the upper side of the watertight electronic cabin 3, and an acoustic-magnetic composite receiver 5 is arranged on the upper side of the electric field receiver 6.
Wherein, the acoustomagnetic composite receiver 5 adopts a circular tube type structure, an internal cylindrical cavity is used for installing the magnetic receiver, and polyurethane acoustic rubber and waterproof glue are coated outside to ensure the water tightness. The acousto-magnetic composite receiver 5 is connected with the shell of the three-component electric field receiver 6 through a support rod.
The electric field receiver 6 is installed by 6 electrodes in opposite directions and is fixed on the top cover of the watertight electronic cabin 3 through a support, and a water inlet hole is reserved on the protective shell. The upper part of the watertight electronic cabin 3 is provided with an underwater multi-physical field data acquisition and processing instrument 2 which is responsible for the working time sequence control, the sound/magnetic/electric field signal conditioning, the signal processing, the data storage, the power management and the like of the system.
The lower part of the watertight electronic cabin 3 is provided with a battery pack 8 which is responsible for providing energy for the underwater self-sustaining work of the system.
At the bottom of the device is a base 10 responsible for providing sufficient negative buoyancy and stable sitting posture to the system. The base 10 is provided with 2 small recovery buoys which are connected with recovery ropes and can be released at regular time or according to remote control instructions for device recovery.
The working principle of the invention is as follows: the acoustic-magnetic composite receiver 5 converts the sound field signal and the magnetic field signal of the target into analog electric signals and transmits the analog electric signals to the underwater multi-physical-field data acquisition and processing instrument 2; the electric field receiver 6 converts the electric field signal of the target into an analog electric signal and transmits the analog electric signal to the underwater multi-physical-field data acquisition and processing instrument 2; the pressure sensor 7 measures the depth of the seawater, and the detection socket 1 is externally connected with detection equipment to perform function detection, parameter presetting, working state setting, data reading and the like on the device; the underwater multi-physical-field data acquisition and processing instrument 2 controls the overall working time sequence of the system, conditions the electric signals output by the acoustic/magnetic/electric field receiver, acquires and stores target acoustic/magnetic/electric field data, fuses and processes various data, then gives a target detection result, and realizes power supply conversion and distribution management; the battery pack 8 is used for providing a stable working power supply for the device, and the base seat 10 provides sufficient negative buoyancy and stable base seat posture for the device; the small recovery buoy is used for recovering the device and can release recovery at regular time or according to a remote control command.
The device shown in figure 2 is used for laying a recoil bottom by a laying ship to work, and synchronously receives and processes acoustic, magnetic and electric field signals of a target ship. The main work flow is shown in fig. 3: before the device is laid, the device is detected by detecting external detection equipment of the socket, and after the detection is passed, a working mode is selected, working parameters are set and the like, so that the device enters a dormant state; throwing the device into water from the side of the ship, sinking the device by means of self gravity, and adjusting self posture to be vertical to the bottom of the seat by means of the configured mass center during sinking;
after the device sits on the ground, the underwater multi-physical-field data acquisition and processing instrument sends out a wake-up signal after timing or receiving an acoustic remote control instruction, and the device starts to be electrified to enter a working state;
the self-checking is completed after the electrification, the acoustic-magnetic composite receiver and the electric field receiver start to synchronously receive acoustic, magnetic and electric field signals after the self-checking is successful, and the pressure sensor starts to measure the depth of the seawater and respectively transmits the seawater to the underwater multi-physical-field data acquisition and processing instrument;
the underwater multi-physical-field data acquisition and processing instrument synchronously acquires and processes sound, magnetism, electric field signals and seawater depth signals, can simultaneously give target detection results such as a sound intensity passing curve, a magnetic intensity passing curve, an electric intensity passing curve and the like shown in figure 4 at the same point, packs multi-field original data, processing results, system state parameters and the like and stores the packed data in a data storage module of the underwater multi-physical-field data acquisition and processing instrument;
when the timing time is up or after an acoustic remote control instruction is received, the device stops working, the underwater multi-physical-field data acquisition and processing instrument sends out a control signal to release the small buoy, and the device is fished out of water by utilizing a fishing rope tied by the buoy;
after the recovery, the detection of the device is completed by reading and analyzing the stored data through the detection equipment externally connected with the socket.
The invention takes a plurality of physical fields of sound, magnetism, electricity and the like of the target as a whole, realizes the reliable detection of the underwater target by utilizing the coupling and complementarity of multi-field characteristics, and has the characteristics of low false alarm, low missing detection, strong marine environment interference resistance or artificial simulation anti-interference capability and the like.
It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided on a carrier medium such as a disk, CD-or DVD-ROM, programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier, for example. The apparatus and its modules of the present invention may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of hardware circuits and software, e.g., firmware.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
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| CN115308815A (en) * | 2022-10-11 | 2022-11-08 | 中国海洋大学 | A method and device for automatic monitoring of accidental water leakage of a submarine electromagnetic exploration device |
| CN115973330A (en) * | 2022-12-16 | 2023-04-18 | 中国海洋大学 | Buoy for real-time magnetic detection of deep and open sea based on iridium satellite communication |
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