CN210376681U - Active and passive combined underwater target detecting instrument and monitoring system - Google Patents
Active and passive combined underwater target detecting instrument and monitoring system Download PDFInfo
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- CN210376681U CN210376681U CN201920184329.6U CN201920184329U CN210376681U CN 210376681 U CN210376681 U CN 210376681U CN 201920184329 U CN201920184329 U CN 201920184329U CN 210376681 U CN210376681 U CN 210376681U
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Abstract
The utility model belongs to the technical field of target detection and monitoring under water, a target detecting instrument and monitoring system under water is related to. An active and passive combined underwater target detection instrument comprises an ocean electric field measuring instrument, an ocean magnetic field measuring instrument, a four-component water sound sensing unit, a data acquisition and storage unit and an underwater wireless data transmission unit; the data acquisition and storage unit is used for acquiring the measurement data of the marine electric field measuring instrument, the marine magnetic field measuring instrument and the four-component water sound sensing unit, converting the data into digital signals and storing the digital signals; the underwater wireless data transmission unit transmits the data of the data acquisition and storage unit to the water surface in a wireless transmission mode. The utility model discloses a detecting instrument and monitoring system can survey or real-time supervision get into the target of its detection range removal under water, hover or seabed silence, solves the difficult problem that present single underwater target detection system and method such as underwater sound, supersound, laser, seabed magnetotelluric etc. can't accurate reliable survey or monitoring remove under water or static target.
Description
Technical Field
The utility model belongs to the technical field of target detection and monitoring under water, a target detecting instrument and monitoring system under water that owner combined together passively is related to.
Background
The detection and real-time monitoring of moving or stationary underwater or seabed targets generally adopts detection technologies such as ultrasound, laser (active), underwater sound, and seabed magnetotelluric (passive). Due to the limitations of various methods and the strong background noise of various physical fields in the ocean, it is often difficult to reliably and accurately detect or monitor in real time the objects moving underwater or hovering in the water or being silent at the sea bottom, which enter their detection range, in practical applications, and there is a need for a new, better and more reliable technical method and practical equipment to solve the problem that the current single underwater object detection systems and methods such as ultrasound, laser, underwater sound, magnetotelluric, etc. cannot accurately and reliably detect or monitor the underwater moving or static objects.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides an utilize the seabed underwater target detection monitoring system who combines together passively of five-component ocean controllable source electromagnetism (initiative are surveyed) and four-component underwater sound (passive survey) signal measurement instrument's owner.
The utility model provides a its technical problem adopt first technical scheme to be: an active and passive combined underwater target detection instrument comprises an ocean electric field measuring instrument, an ocean magnetic field measuring instrument, a four-component water sound sensing unit, a data acquisition and storage unit and an underwater wireless data transmission unit; the data acquisition and storage unit is used for acquiring measurement data of the marine electric field measuring instrument, the marine magnetic field measuring instrument and the four-component water sound sensing unit, converting the data into digital signals and storing the digital signals; the underwater wireless data transmission unit transmits the data of the data acquisition and storage unit to the water surface in a wireless transmission mode.
Further preferably, the ocean electric field measuring instrument is composed of two pairs of orthogonal electric field sensors and is used for measuring two orthogonal ocean horizontal electric field data of the position.
Further preferably, the electric field sensor is a pair of non-polarized electrodes, and the material of the non-polarized electrodes is a metal material or a non-metal material.
Further preferably, the ocean magnetic field measuring instrument consists of three magnetic field sensors which are orthogonal with each other and used for measuring the ocean bottom three-component magnetic field data of the position where the ocean magnetic field measuring instrument is located.
More preferably, the magnetic field sensor is any one of an inductive magnetic field sensor, a fluxgate magnetic field sensor, a superconducting magnetic field sensor, or a cold-atom magnetic field sensor.
Further preferably, the four-component hydrophone sensing unit is composed of three mutually orthogonal hydrophone sensors and one hydrophone.
Further preferably, the three mutually orthogonal underwater acoustic sensors of the four-component underwater acoustic unit are formed by one of a fiber detector, a piezoelectric detector, a moving coil detector or an acceleration detector.
Further preferably, the hydrophone is a piezoelectric crystal type hydrophone, or a piezoelectric ceramic type hydrophone, or an optical fiber piezoelectric hydrophone.
Further preferably, the wireless transmission mode includes an underwater electromagnetic wave communication mode, an underwater acoustic communication mode or an underwater quantum communication mode.
The utility model provides a second technical scheme that its technical problem adopted is: an active and passive combined underwater target detection monitoring system comprises a plurality of active and passive combined underwater target detection instruments arranged on the sea bottom, a master control system, a communication satellite, a water surface data receiving and transmitting unit and a current source; the main control system is connected with the current source; the current source is connected with the detecting instrument through an electric signal; the detecting instrument, the water surface data receiving and transmitting unit and the communication satellite are connected in sequence in a wireless transmission mode; and the communication satellite is connected with the master control system.
Preferably, the main control system comprises a data receiving and real-time processing system and a detection and monitoring result real-time display and early warning system.
Further preferably, the current source comprises a controllable current source, a transmitting antenna and a transmitting electrode; the controllable current source and the transmitting antenna are connected through a cable; the transmitting antenna is two orthogonal cables; the transmitting electrode is connected to the end of the transmitting antenna.
Further preferably, the water surface data receiving and transmitting unit comprises a wireless data receiving unit and a satellite data transmitting unit; the wireless data receiving unit is used for receiving detection data sent by the submarine detection instrument; the satellite data transmitting unit is used for transmitting the detection data to a communication satellite.
When a moving target or a static target underwater or close to the sea bottom appears in a monitoring area, the marine electromagnetic and underwater sound signal measuring instrument arranged on the sea bottom can measure marine electromagnetic abnormality caused by the underwater target and mechanical noise emitted by the moving target due to the fact that the underwater target has huge electrical difference (high conductivity or high resistivity underwater target) with sea water and noise emitted by an engine and a propeller when the underwater target moves. By real-time processing and interpretation of the measured electromagnetic and underwater acoustic signals of the sea floor, moving or static targets underwater or close to the sea floor can be discovered in time in the monitored sea area. If the underwater moving target is changed into a static or silent (suspension) state from motion, the four-component water sound sensing unit cannot measure or monitor the underwater target at the moment, and the five-component electromagnetic signal sensing unit can reliably detect and monitor the underwater target by measuring the disturbed ocean electromagnetic field when the underwater target appears.
The utility model discloses an active and passive underwater target detecting instrument who combines together and visit and monitor monitoring system can survey or real-time supervision get into its detection range under water and remove or hover or the quiet target in seabed in aquatic, solves the present single underwater target detecting system and method such as underwater sound, supersound, laser, seabed magnetotelluric and can't accurate reliable survey or monitor the difficult problem of removing or static target under water.
Drawings
FIG. 1 is a schematic structural view of an active and passive combined underwater target detecting instrument according to the present invention;
FIG. 2 is a schematic view of the active and passive underwater target detection and monitoring system of the present invention;
fig. 3 is a plan view of the active and passive underwater target detection and monitoring system of the present invention.
Description of reference numerals: 1. a frame; 2. a ship; 3. an underwater high-power cable; 4. a transmitting antenna; 5. an emitter electrode; 6. a float; 7. a water surface data receiving and transmitting unit; 8. a low orbit communication satellite; 9. an underwater transmitting antenna; 10. a connecting rod; 11. a north-south electric field sensor; 12. east-west electric field sensors; 13. a horizontal magnetic field sensor in the east-west direction; 14. a north-south horizontal magnetic field sensor; 15. a vertical magnetic field sensor; 16. a four-component underwater acoustic sensing unit; 17. an underwater wireless data transmission unit.
Detailed Description
The active and passive underwater target detecting instrument and monitoring system according to the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in figure 1, the underwater target detecting instrument with active and passive combination of the utility model comprises an instrument frame 1 and an aluminum alloy pressure bearing cabin arranged in the middle of the instrument frame 1; a data acquisition/analog-to-digital conversion module, a data storage module, a three-component attitude sensor, a short-distance wireless data transmission transmitting and receiving module and a rechargeable battery are arranged in the aluminum alloy pressure bearing cabin; the data acquisition/analog-to-digital conversion module is used for acquiring signals measured by the electric field sensor, the electromagnetic sensor, the four-component water sound unit and the three-component attitude sensor, converting the acquired signals into digital signals and storing the digital signals through the data storage module. The rechargeable battery is used for providing power for the three-component attitude sensor, a circuit board and an electronic device in the instrument and each functional module.
Two pairs of orthogonal electric field sensors, namely a north-south electric field sensor 11 and an east-west electric field sensor 12, are arranged in the instrument frame 1 and are connected through a connecting rod 10, the two connecting rods are orthogonal, and the intersection point is positioned on a central axis of the frame 1. For measuring two orthogonal horizontal electric field data of the sea at the seafloor location. The electric field sensor is a non-polarized electrode pair, and the non-polarized electrode material can be made of metal or non-metal materials.
The three mutually orthogonal magnetic field sensors are composed of an east-west horizontal magnetic field sensor 13, a north-south horizontal magnetic field sensor 14 and a vertical magnetic field sensor 15, and the orthogonal intersection point of the three is also positioned on the central axis of the frame. Used for measuring the seabed three-component magnetic field data of the position where the seabed three-component magnetic field data is located. The magnetic field sensor is an inductive magnetic field sensor, or a fluxgate magnetic field sensor, or a superconducting magnetic field sensor, or a cold atom magnetic field sensor.
A four-component water sound sensing unit 16 and an underwater wireless data transmission unit 17 are fixed above the frame 1. The underwater wireless data transmission unit 17 is connected with a data storage module in the aluminum alloy pressure-bearing cabin, and the underwater transmitting antenna 9 is connected with the underwater wireless data transmission unit 17.
The four-component hydrophone sensing unit 16, mounted above the instrument frame 1, consists of three mutually orthogonal hydrophones, plus one hydrophone. The three orthogonal underwater acoustic sensors can be based on three moving coil detectors which are arranged and combined in an orthogonal coordinate system mode, or optical fiber detectors, acceleration detectors or piezoelectric detectors, and underwater acoustic data of positions where the three orthogonal underwater acoustic sensors are located are measured. Hydrophones are used to measure pressure wave data of the seafloor at the location.
As the utility model discloses an optimal mode, 1 below of frame is connected with the balancing weight that sinks, and the balancing weight is together fixed with the instrument frame through the steel wire or the rope of connecting the acoustic control releaser, and the balancing weight that detecting instrument passes through the connection of 1 below of frame sinks to the seabed. A glass floating ball is arranged above the frame 1, and the frame of the detecting instrument is separated from a balancing weight and then floats to the sea surface by the glass floating ball fixed above the frame for recovery.
Referring to fig. 2 and 3, the utility model discloses a main passive underwater target detection monitoring system mainly comprises a plurality of submarine underwater target detection instrument, the major control system that lay in the submarine owner passive combination, surface of water data receiving and transmitting unit 7, naval vessel 2, underwater high-power cable 3, the high-power dipole transmitting antenna 4 of cross that lays below the surface of water or seabed, transmitting electrode 5, buoy 6, low orbit communication satellite 8.
A main control system and a high-power controllable current source are carried on the ship 2; the main control system comprises a data receiving and real-time processing system, a detection and monitoring result real-time display and early warning system and the like. The high-power controllable current source is connected with an orthogonal cross-shaped high-power dipole transmitting antenna 4 arranged below the water surface or on the sea bottom through an underwater high-power cable 3, and the tail end of the transmitting antenna 4 is connected with a transmitting electrode 5. A controllable current source in turn supplies two orthogonal transmitting antennas 4, which transmitting antennas 4 supply low frequency alternating current to the sea water or the seafloor via transmitting electrodes 5. The low-frequency alternating current signal excited by the transmitting electrode is composed of several groups of pseudo random codes, and is prevented from being recognized by the opposite side.
The water surface data receiving and transmitting unit 7 is mounted on the buoy 6.
The underwater wireless data transmission unit 17 compresses the data stored on the data storage module, and then wirelessly transmits the data to the water surface data receiving and transmitting unit 7 on the buoy 6 in real time through the underwater transmitting antenna 9. The wireless transmission mode is realized by adopting an underwater electromagnetic wave communication mode, an underwater acoustic communication mode or an underwater quantum communication mode.
The water surface data receiving and transmitting unit 7 receives data from the underwater transmitting antenna 9 and the underwater wireless data transmission unit 17 and transmits the data to the low-orbit communication satellite 8 above the sea surface in real time. And then, receiving satellite data through a main control system arranged on the ship 2, processing the data in real time by a data processing system, and finally, displaying detection and monitoring results in real time and sending early warning information to detected or monitored underwater targets.
The utility model discloses carry on the naval vessel 2 of major control system and high-power controllable current source and also can be bank base, island base, marine fixed platform, and its function and effect are all the same.
The utility model discloses an active concrete working process as follows of target detection monitoring instrument and monitoring system under water that combines together passively:
at first according to the coordinate and the interval that predesign, the utility model discloses a seabed underwater target detection instrument that owner combines together passively is thrown to the seabed of planning to monitor the sea area, can follow near coastline equidistant linear and lay, also can follow the island reef annular and lay, can also equidistant evenly lay according to three-dimensional net in big waters to cooperate a plurality of below the surface of water or the big power dipole transmitting antenna 4 of cross and the 5 synchronous working of transmitting electrode in seabed.
And then, according to the pre-designed coordinates, a transmitting antenna 4 and a transmitting electrode 5 of the high-power controllable current source are arranged under the sea surface or the sea bottom. The high-power controllable inversion current source arranged on the ship 2 sequentially supplies power to two pairs of orthogonal transmitting antennae 4, and the transmitting antennae 4 supply low-frequency alternating current to sea water or under the sea through transmitting electrodes 5. The low-frequency alternating current signal excited by the transmitting electrode is composed of several groups of pseudo random codes, and is prevented from being recognized by the opposite side.
Then the buoy 6 carrying the water surface data receiving and transmitting unit 7 is arranged in a predetermined sea area. And starting a high-power controllable current source, and alternately transmitting high-power current signals modulated by different pseudo random codes to the sea or the sea bottom through two pairs of orthogonal high-power high-current transmitting antennas. The submarine underwater target detection instrument which is arranged on the seabed and is combined with the active and passive devices simultaneously acquires five-component controllable source marine electromagnetic data and four-component water acoustic data. The underwater wireless data transmission unit 17 arranged on the upper part of the active and passive combined submarine target detection instrument framework compresses the collected marine electromagnetic and underwater acoustic data, transmits the compressed data to the water surface data receiving and transmitting unit 7 arranged on the sea surface buoy through the underwater transmitting antenna 9, and the water surface data receiving and transmitting unit 7 uploads the received compressed data to the low-orbit communication satellite 8 over the monitoring sea area.
The low-orbit communication satellite 8 transmits the received compressed data to a main control system on the ship: receiving satellite data, processing the data in time through a high-speed computer system, displaying a processing result on a display screen, and issuing early warning information to underwater or seabed moving or static targets detected or monitored in a monitored sea area.
When a moving target or a static target underwater or close to the sea bottom appears in a monitoring area, the marine electromagnetic and underwater sound signal measuring instrument arranged on the sea bottom can measure marine electromagnetic abnormality caused by the underwater target and mechanical noise emitted by the moving target due to the fact that the underwater target has huge electrical difference (high conductivity or high resistivity underwater target) with sea water and noise emitted by an engine and a propeller when the underwater target moves. By real-time processing and interpretation of the measured electromagnetic and underwater acoustic signals of the sea floor, moving or static targets underwater or close to the sea floor can be discovered in time in the monitored sea area. If the underwater moving target is changed into a static or silent (suspension) state from motion, the four-component water sound sensing unit cannot measure or monitor the underwater target at the moment, and the five-component electromagnetic signal sensing unit can reliably detect and monitor the underwater target by measuring the disturbed ocean electromagnetic field when the underwater target appears.
Claims (13)
1. An active and passive combined underwater target detection instrument is characterized in that: the device comprises an ocean electric field measuring instrument, an ocean magnetic field measuring instrument, a four-component water sound sensing unit, a data acquisition and storage unit and an underwater wireless data transmission unit; the data acquisition and storage unit is used for acquiring measurement data of the marine electric field measuring instrument, the marine magnetic field measuring instrument and the four-component water sound sensing unit, converting the data into digital signals and storing the digital signals; the underwater wireless data transmission unit transmits the data of the data acquisition and storage unit to the water surface in a wireless transmission mode.
2. The active and passive combined underwater object detecting instrument according to claim 1, wherein: the ocean electric field measuring instrument consists of two pairs of orthogonal electric field sensors and is used for measuring two orthogonal ocean horizontal electric field data of the position where the electric field sensors are located.
3. The active and passive combined underwater object detecting instrument according to claim 2, wherein: the electric field sensor is a non-polarized electrode pair, and the non-polarized electrode is made of a metal material or a non-metal material.
4. The active and passive combined underwater object detecting instrument according to claim 1, wherein: the ocean magnetic field measuring instrument consists of three mutually orthogonal magnetic field sensors and is used for measuring the seabed three-component magnetic field data of the position where the ocean magnetic field measuring instrument is located.
5. The active and passive combined underwater object detecting instrument according to claim 4, wherein: the magnetic field sensor is any one of an inductive magnetic field sensor, a fluxgate magnetic field sensor, a superconducting magnetic field sensor or a cold atom magnetic field sensor.
6. The active and passive combined underwater object detecting instrument according to claim 1, wherein: the four-component underwater acoustic sensing unit is composed of three mutually orthogonal underwater acoustic sensors and a hydrophone.
7. The active and passive combined underwater object detecting instrument according to claim 6, wherein: the three mutually orthogonal underwater acoustic sensors of the four-component underwater acoustic unit are composed of one of a fiber detector, a piezoelectric detector, a moving coil detector or an acceleration detector.
8. The active and passive combined underwater object detecting instrument according to claim 6, wherein: the hydrophone is a piezoelectric crystal type hydrophone, or a piezoelectric ceramic type hydrophone, or an optical fiber piezoelectric hydrophone.
9. An active and passive combined underwater object detection instrument according to any one of claims 1 to 8, wherein: the wireless transmission mode comprises an underwater electromagnetic wave communication mode, an underwater acoustic communication mode or an underwater quantum communication mode.
10. An active and passive combined underwater target detection and monitoring system is characterized in that: the system comprises a plurality of detection instruments according to any one of claims 1 to 8, a master control system, a communication satellite, a water surface data receiving and transmitting unit and a current source which are arranged on the sea bottom; the main control system is connected with the current source; the current source is connected with the detecting instrument through an electric signal; the detecting instrument, the water surface data receiving and transmitting unit and the communication satellite are connected in sequence in a wireless transmission mode; and the communication satellite is connected with the master control system.
11. The active and passive combined underwater object detection and monitoring system according to claim 10, wherein: the main control system comprises a data receiving and real-time processing system and a detection and monitoring result real-time display and early warning system.
12. The active and passive combined underwater object detection and monitoring system according to claim 10, wherein: the current source comprises a controllable current source, a transmitting antenna and a transmitting electrode; the controllable current source and the transmitting antenna are connected through a cable; the transmitting antenna is two orthogonal cables; the transmitting electrode is connected to the end of the transmitting antenna.
13. The active and passive combined underwater object detection and monitoring system according to claim 10, wherein: the water surface data receiving and transmitting unit comprises a wireless data receiving unit and a satellite data transmitting unit; the wireless data receiving unit is used for receiving detection data sent by the submarine detection instrument; the satellite data transmitting unit is used for transmitting the detection data to a communication satellite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920184329.6U CN210376681U (en) | 2019-02-02 | 2019-02-02 | Active and passive combined underwater target detecting instrument and monitoring system |
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| CN201920184329.6U CN210376681U (en) | 2019-02-02 | 2019-02-02 | Active and passive combined underwater target detecting instrument and monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895277A (en) * | 2020-08-07 | 2020-11-06 | 中国石油大学(北京) | Submarine pipeline defect positioning method, device, equipment and system |
| CN113905396A (en) * | 2021-09-10 | 2022-01-07 | 河南信安通信技术股份有限公司 | Mobile phone signal measuring equipment and method with LTE active and passive depth fusion |
-
2019
- 2019-02-02 CN CN201920184329.6U patent/CN210376681U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895277A (en) * | 2020-08-07 | 2020-11-06 | 中国石油大学(北京) | Submarine pipeline defect positioning method, device, equipment and system |
| CN113905396A (en) * | 2021-09-10 | 2022-01-07 | 河南信安通信技术股份有限公司 | Mobile phone signal measuring equipment and method with LTE active and passive depth fusion |
| CN113905396B (en) * | 2021-09-10 | 2024-03-12 | 河南信安通信技术股份有限公司 | Mobile phone signal measurement equipment and method for LTE active and passive depth fusion |
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