CN203178489U - Real-time monitoring system used for identifying underwater and water surface objects - Google Patents
Real-time monitoring system used for identifying underwater and water surface objects Download PDFInfo
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- CN203178489U CN203178489U CN 201320105417 CN201320105417U CN203178489U CN 203178489 U CN203178489 U CN 203178489U CN 201320105417 CN201320105417 CN 201320105417 CN 201320105417 U CN201320105417 U CN 201320105417U CN 203178489 U CN203178489 U CN 203178489U
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Abstract
The utility model discloses a real-time monitoring system used for identifying underwater and water surface objects, comprising an acoustic velocity section plotter, a vector hydrophone, a digital compass instrument, a control unit and a shore station. The control unit receives output signals of the acoustic velocity section plotter, the vector hydrophone and the digital compass instrument, processes the signals to generate monitoring data and sends the data to the shore station in a wired or wire mode. The real-time monitoring system employs a vector hydrophone to detect underwater sound field information and can realize accurate detection of low frequency and very-low frequency segment radiation noise and guarantee that a vector channel possesses good low frequency directivity and isotropic noise inhibition capability. In cooperation with the acoustic velocity section plotter and the digital compass instrument, the detection of depth and acoustic velocity of a vector hydrophone as well as object orientation and depth can be realized, which not only can meet detection and identification requirements for water surface and underwater low frequency mobile objects, but also can effectively solve the problem of a huge size of a traditional sonar system; the system configuration is flexible and various.
Description
Technical field
The utility model belongs to marine monitoring systems technology field, specifically, relates to a kind of for identification and the monitoring water surface and the monitoring system of low frequency moving target in real time under water.
Background technology
In existing marine monitoring research field, the modes of laying sonar transducer array that adopt realize the water surface and detection and the identification of remote moving target under water more.But, the present water surface and submarine target, the noise of its radiation constantly reduces, and mainly concentrates on low frequency and very low frequency (VLF) section.Therefore, in order to survey and to identify submarine target and water surface ship, need monitoring system can catch the sound field information of low frequency and very low frequency (VLF) section.But, along with the reduction of frequency of operation, require the physical dimension of sonar transducer array constantly to increase, cause the volume of target monitoring system day by day huge thus, and its performance also is difficult to satisfy the detection requirement of low frequency and very low frequency (VLF) section sound field information.
Summary of the invention
The utility model adopts sonar to make up the problem of existing bulky, the application flexibility difference of submarine target monitoring system in order to solve tradition, a kind of target monitoring system based on velocity of sound section plotter and vector hydrophone structure has been proposed, realized under water with real-time detection and the identification of water surface moving target, improved the monitoring capability of total system.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of for identification under water with the real-time monitoring system of waterborne target, comprise velocity of sound section plotter, vector hydrophone, digital compass instrument, control module and bank station; After described control module receives the detection signal of velocity of sound section plotter, vector hydrophone and the output of digital compass instrument and handles, generate Monitoring Data and be sent to bank station in wired or wireless mode.
Further, be provided with sound pressure sensor and vibration velocity sensor in described vector hydrophone, feedback acoustic pressure detection signal and vibration velocity detection signal are to described control module.
Preferably, in described control module, preferably be provided with the prime amplifier, wave filter, analog to digital converter and the data acquisition unit that connect successively, receive the detection signal that described velocity of sound section plotter, vector hydrophone and digital compass instrument are exported by prime amplifier, the Monitoring Data that will handle the back generation by data acquisition unit is sent to bank station.
Further, in described control module, also be provided with storer, connect data acquisition unit, preserve Monitoring Data.
As a kind of preferred building mode of described bank station, in described bank station, preferably be provided with digital signal processing module and display, described digital signal processing module receives the Monitoring Data that control module is uploaded, and exports display after treatment to and shows.
Further, described velocity of sound section plotter and vector hydrophone lay the underwater same degree of depth, measure the velocity of sound information of vector hydrophone water layer of living in by velocity of sound section plotter, for the target identification in later stage provides required detection data.
Further again, in described real-time monitoring system, be provided with submerged buoy system, described vector hydrophone and digital compass instrument are included in the described submerged buoy system, lay underwater designated depth; Described velocity of sound section plotter connects anchor by the acoustics release, realizes that by anchor the underwater location of velocity of sound section plotter lays.
Further again, in described submerged buoy system, be provided with framework, in order to reduce to rock the influence to monitoring system, vibroshock is installed also under the framework of described submerged buoy system, to reduce external environment to the interference of vector hydrophone.
Preferably, the degree of depth that lays of described vector hydrophone is 30-80 rice, and the degree of depth that lays the waters is 40-100 rice.
In order to realize the real-time monitoring to different waters moving target, described velocity of sound section plotter, vector hydrophone, digital compass instrument and control module preferably are provided with many groups, be distributed in different monitoring waters, monitor the moving target in different waters, and be uploaded to bank station in real time.
Compared with prior art, advantage of the present utility model and good effect are: monitoring system of the present utility model adopts vector hydrophone detection sound field information under water, can realize the accurate detection to low frequency and very low frequency (VLF) section radiated noise, and guarantee that the vector passage has good low frequency directive property and the inhibition ability of isotropic noise.Cooperation velocity of sound section plotter and digital compass instrument can also be realized the detection to the vector hydrophone degree of depth of living in and the velocity of sound, and to the detection of orientation and the degree of depth of target, not only satisfied water surface ship and the detection and Identification requirement of low frequency moving target under water, and can effectively solve the bulky problem of traditional sonar system, system configuration is flexible, various, can also realize real-time monitoring to different waters moving target having improved real-time and the maneuverability of marine monitoring by networking.
After reading the detailed description of the utility model embodiment by reference to the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 be the utility model propose be used for identification under water with the overall architecture synoptic diagram of the real-time monitoring system of waterborne target.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
20 middle of century, it is ripe that the normal mode theory of shallow stratified medium point source sound field is tending towards, the stratified medium theory of sound propagation has promoted the develop rapidly of underwater acoustic technology after the sixties in 20th century, and vector sensor, vector acoustics and vector signal treatment technology be starting at this point also.The research work head of vector hydrophone sees the paper that relevant use inertial sensor that American scholar the fifties delivers is directly measured particle vibration velocity in the water, henceforth, and the development work that countries such as Russia, Britain, France have carried out vector hydrophone successively.Up to the nineties in last century, the research work of vector hydrophone just begins extensive expansion, and up to the present remains one of focus of underwater sound area research.
Present embodiment is applied to vector hydrophone in the monitoring system design of the water surface and submarine target, cooperates velocity of sound section plotter and digital compass instrument to detect target information jointly, realizes water surface ship and the accurate detection and Identification of moving target under water.The specific design mode comprises chief components such as velocity of sound section plotter, vector hydrophone, digital compass instrument, control module and bank station referring to shown in Figure 1.Wherein, control module connects velocity of sound section plotter, vector hydrophone and digital compass instrument by cable, receive the detection signal of velocity of sound section plotter, vector hydrophone and digital compass instrument feedback, and after detection signal handled, generate Monitoring Data and be sent to bank station, observe to offer the monitoring personnel.
The vector hydrophone of present embodiment is composited by non-direction sound pressure sensor and the vibration velocity sensor with dipole directive property, can receive frequency range at the radiated noise of 10-500Hz, and the directive property of vector passage and frequency-independent can obtain good spatial gain equally at low frequency and very low frequency (VLF) section.Therefore, adopt vector hydrophone can receive the sound field information of low frequency and very low frequency (VLF) section effectively, satisfy detection and identification requirement to present submarine target.
Because vector hydrophone is different from traditional pressure hydrophone, the disturbance of measuring table is easy to the signal of vector hydrophone vector passage is caused interference, causes the information of data acquisition system (DAS) record can not correctly reflect sound field information.In order to reduce the influence that wave of the sea and ocean current are measured vector hydrophone, present embodiment adopts submerged buoy system carrying vector hydrophone and digital compass instrument, carries out the measurement of the radiated noise of submarine target.Because submerged buoy system has sufficiently high rigidity and weight, cause distortion and the displacement of framework in the time of therefore can avoiding vector hydrophone in sound field, to do free movement.When being installed to vector hydrophone in the submerged buoy system, vector hydrophone should be as far as possible away from the framework of submerged buoy system, exert an influence with the acoustic scattering that the reduces framework performance to vector hydrophone.After laying, submerged buoy system is in suspended state, and vector hydrophone is free state in water, to guarantee vector hydrophone performance optimum performance.
Have a negative impact in order to reduce the measurement that submerged buoy system rocks monitoring system, present embodiment has preferably been installed vibroshock in the framework of submerged buoy system, reduces the shaking amplitude of submerged buoy system by vibroshock, to reduce external environment to the interference of vector hydrophone.
In submerged buoy system, be provided with acoustics release and anchor, can easily vector hydrophone cloth be placed on the depth location of 30-80 rice in the monitoring waters, to monitor water surface ship and moving target under water exactly.In the present embodiment, described vector hydrophone preferred cloth is placed in the waters that the degree of depth is 40-100 rice.
The digital compass instrument is installed in the described submerged buoy system, utilize the digital compass instrument to export bearing data as attitude sensor on the one hand, so that the attitude information during the submerged buoy system underwater operation to be provided, and the attitude situation of change of framework under factor affecting such as ocean current and morning and evening tides of monitoring submerged buoy system; On the other hand, utilize the digital compass instrument can also satisfy the needs that align of each major axes orientation of vector hydrophone.
Utilize the vector hydrophone some acoustic pressure at place and vibration velocity information of three orthogonal directionss of measurement space simultaneously, together send control module to the detected bearing data of digital compass instrument in the submerged buoy system.In described control module, be provided with prime amplifier, wave filter, analog to digital converter and data acquisition unit.Described control module is used for gathering the detection signal of velocity of sound section plotter, vector hydrophone and the output of digital compass instrument, and utilize prime amplifier that the faint detection signal that collects is handled by carrying out preposition amplification, after detection signal after the amplification carries out low-pass filtering treatment via wave filter, be transferred to analog to digital conversion circuit analog signal conversion is become digital signal, export data acquisition unit to and form Monitoring Data.Can transfer to the storer of control module inside on the one hand by the Monitoring Data of data acquisition unit output, realize the self-tolerant storage; Can adopt wired on the other hand or Wireless transmission mode is uploaded to bank station in real time, for monitoring personnel observation.
If submerged buoy system to lay the position nearer apart from bank station, then can adopt wire transmission modes such as cable or optical cable to realize data communication between control module and the bank station.For example: when submerged buoy system cloth was placed on apart from the nearer position of seashore, bank station can arrange by the sea; When submerged buoy system cloth was placed on apart from seashore position far away, then bank station can be arranged on the monitoring ship.If submerged buoy system to lay the position far away apart from bank station, then can adopt respectively and in control module and bank station, wireless communication module is set, realize data transmission between control module and the bank station with Wireless transmission mode.
In described bank station, be provided with digital signal processing module and display, after the Monitoring Data of exporting after the pre-service of process control module is received by the digital signal processing module in the bank station, digital signal processing module starts its inner treatment scheme and at first finds target according to the Monitoring Data that receives, then target is identified, resolution is submarine target or water surface ship, provides the information such as orientation, the degree of depth, distance of target at last.In to target identification, location process, mainly be to utilize the numerical value change judgement target of horizontal acoustic high current real component and the horizontal range of vector hydrophone system, utilize the depth range of the sign change judgement target of vertical sound intensity stream idle component, utilize the radial motion speed of the real component estimating target of vertical sound intensity stream, distinguishing out target thus is submarine target or water surface ship.
Handling the result that the back obtains by digital signal processing module can show by the display in the bank station, orientation, the degree of depth and the target of the target that mainly comprise the residing degree of depth of vector hydrophone, the velocity of sound, detects and the information such as distance between the vector hydrophone.
The monitoring system of present embodiment is monitoring sound field information under water in real time, is only finding just to start next step target identifying behind the low frequency moving target, otherwise continuing to monitor.Adopt this design can realize the modularization management of monitoring system, be conducive to reduce the Overall Power Consumption of system and the false alarm rate of detection.
In the monitoring system of present embodiment, also be provided with velocity of sound section plotter, referring to shown in Figure 1, velocity of sound section plotter is laid in the monitoring waters by acoustics release and anchor, and be placed on the same degree of depth with vector hydrophone system cloth, be used for to measure the information such as the velocity of sound, the degree of depth, pressure and temperature of vector hydrophone water layer of living in, and handle for the data in later stage foundation is provided.After handling via control module by the detection signal of velocity of sound section plotter feedback, export bank station to, finally can demonstrate the sound velocity profile in monitoring waters by the display in the bank station, for monitoring personnel reference.
In the real-time monitoring system of present embodiment, the acoustics release lays for convenience and reclaims monitoring equipment and adopt.After finishing the monitoring task, the monitoring personnel can send the instruction of reclaiming monitoring equipment at bank station, this command signal sends to unit under water by the unit on the bank of acoustics release, the unit discharges anchor after receiving order under water, and then submerged buoy system and velocity of sound section plotter are emerged, be convenient to the staff and salvage recovery.
The real-time monitoring system of present embodiment, its receive frequency range can be between 10-500Hz, and detection range is not less than 4km, and accurately identification can reach more than 95% with the probability of water surface low frequency moving target under water.In addition, by adopting network's mode, lay velocity of sound section plotter, vector hydrophone, digital compass instrument and control module respectively in different monitoring waters, can realize the real-time monitoring to different waters moving target thus, enlarge monitoring range.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (10)
- One kind be used for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: comprise velocity of sound section plotter, vector hydrophone, digital compass instrument, control module and bank station; After described control module receives the detection signal of velocity of sound section plotter, vector hydrophone and the output of digital compass instrument and handles, generate Monitoring Data and be sent to bank station in wired or wireless mode.
- According to claim 1 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: be provided with sound pressure sensor and vibration velocity sensor in described vector hydrophone, feedback acoustic pressure detection signal and vibration velocity detection signal are to described control module.
- According to claim 1 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: in described control module, be provided with the prime amplifier, wave filter, analog to digital converter and the data acquisition unit that connect successively, receive the detection signal that described velocity of sound section plotter, vector hydrophone and digital compass instrument are exported by prime amplifier, the Monitoring Data that will handle the back generation by data acquisition unit is sent to bank station.
- According to claim 3 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: in described control module, also be provided with storer, connect data acquisition unit, preserve Monitoring Data.
- According to claim 1 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: in described bank station, be provided with digital signal processing module and display, described digital signal processing module receives the Monitoring Data that control module is uploaded, and exports display after treatment to and shows.
- According in the claim 1 to 5 each described for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: described velocity of sound section plotter and vector hydrophone lay the underwater same degree of depth.
- According to claim 6 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: in described real-time monitoring system, be provided with submerged buoy system, described vector hydrophone and digital compass instrument are included in the described submerged buoy system, lay underwater designated depth; Described velocity of sound section plotter connects anchor by the acoustics release.
- According to claim 7 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: in described submerged buoy system, be provided with framework, under framework, vibroshock be installed.
- According to claim 7 for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: the degree of depth that lays of described vector hydrophone is 30-80 rice, and the degree of depth that lays the waters is 40-100 rice.
- According in the claim 1 to 5 each described for identification under water with the real-time monitoring system of waterborne target, it is characterized in that: described velocity of sound section plotter, vector hydrophone, digital compass instrument and control module are provided with many groups, are distributed in different monitoring waters.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103513248A (en) * | 2013-10-23 | 2014-01-15 | 广州市海林电子科技发展有限公司 | Underwater object monitoring device |
| CN103529446A (en) * | 2013-10-23 | 2014-01-22 | 广州市海林电子科技发展有限公司 | Water surface target monitoring device |
| CN104048650A (en) * | 2014-05-26 | 2014-09-17 | 中国人民解放军92859部队 | Ocean sound velocity profile remote control measurement system |
| CN104200618A (en) * | 2014-09-17 | 2014-12-10 | 威海北洋光电信息技术股份公司 | Ship entering and leaving detection system based on piezoelectric hydrophone |
| CN104408973A (en) * | 2014-11-24 | 2015-03-11 | 上海交通大学 | Inland waterway real-time monitoring system based on optical fiber acoustic sensor array |
| CN104459699A (en) * | 2014-10-21 | 2015-03-25 | 中国船舶重工集团公司第七一〇研究所 | Water surface and underground target classification and identification method based on target navigation depth |
| CN105606224A (en) * | 2015-12-24 | 2016-05-25 | 华中科技大学 | Underwater heat source detection and location method based on water body hierarchical filtering |
| CN105929385A (en) * | 2016-04-06 | 2016-09-07 | 山东省科学院海洋仪器仪表研究所 | Bi-hydrophone LOFAR (low frequency analysis record) spectrogram analysis-based target depth distinguishing method |
| CN106908134A (en) * | 2016-12-21 | 2017-06-30 | 国家***第二海洋研究所 | A kind of deep-sea sound collecting apparatus and method |
| CN109451396A (en) * | 2018-10-17 | 2019-03-08 | 浙江大学 | A kind of sound field orientation regulation method based on wave beam deflection |
| CN109490893A (en) * | 2018-12-05 | 2019-03-19 | 山东省科学院海洋仪器仪表研究所 | The passive Frequency Adjustable formula underwater sound monitors positioning system |
| CN111010210A (en) * | 2019-12-20 | 2020-04-14 | 中国科学院声学研究所 | Underwater acoustic emission submerged buoy with cable and method thereof |
| CN111024049A (en) * | 2019-12-20 | 2020-04-17 | 中国科学院声学研究所 | Deep sea acoustic receiving submerged buoy and signal acquisition method |
| RU2760912C1 (en) * | 2021-04-27 | 2021-12-01 | Акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор" | Method for determining the class of a noisy marine object |
| CN114442077A (en) * | 2022-01-21 | 2022-05-06 | 中国科学院声学研究所 | Cable type acoustic emission submerged buoy capable of monitoring underwater equipment in real time and monitoring method thereof |
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2013
- 2013-03-08 CN CN 201320105417 patent/CN203178489U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103529446A (en) * | 2013-10-23 | 2014-01-22 | 广州市海林电子科技发展有限公司 | Water surface target monitoring device |
| CN103529446B (en) * | 2013-10-23 | 2014-11-19 | 广州市海林电子科技发展有限公司 | Water surface target monitoring device |
| CN103513248A (en) * | 2013-10-23 | 2014-01-15 | 广州市海林电子科技发展有限公司 | Underwater object monitoring device |
| CN104048650A (en) * | 2014-05-26 | 2014-09-17 | 中国人民解放军92859部队 | Ocean sound velocity profile remote control measurement system |
| CN104200618B (en) * | 2014-09-17 | 2017-02-15 | 威海北洋光电信息技术股份公司 | Ship entering and leaving detection system based on piezoelectric hydrophone |
| CN104200618A (en) * | 2014-09-17 | 2014-12-10 | 威海北洋光电信息技术股份公司 | Ship entering and leaving detection system based on piezoelectric hydrophone |
| CN104459699A (en) * | 2014-10-21 | 2015-03-25 | 中国船舶重工集团公司第七一〇研究所 | Water surface and underground target classification and identification method based on target navigation depth |
| CN104459699B (en) * | 2014-10-21 | 2017-02-15 | 中国船舶重工集团公司第七一〇研究所 | Water surface and underground target classification and identification method based on target navigation depth |
| CN104408973A (en) * | 2014-11-24 | 2015-03-11 | 上海交通大学 | Inland waterway real-time monitoring system based on optical fiber acoustic sensor array |
| CN104408973B (en) * | 2014-11-24 | 2017-05-10 | 上海交通大学 | Inland waterway real-time monitoring system based on optical fiber acoustic sensor array |
| CN105606224A (en) * | 2015-12-24 | 2016-05-25 | 华中科技大学 | Underwater heat source detection and location method based on water body hierarchical filtering |
| CN105606224B (en) * | 2015-12-24 | 2017-03-22 | 华中科技大学 | Underwater heat source detection and location method based on water body hierarchical filtering |
| CN105929385A (en) * | 2016-04-06 | 2016-09-07 | 山东省科学院海洋仪器仪表研究所 | Bi-hydrophone LOFAR (low frequency analysis record) spectrogram analysis-based target depth distinguishing method |
| CN105929385B (en) * | 2016-04-06 | 2019-02-26 | 山东省科学院海洋仪器仪表研究所 | Target depth resolving method based on bi_hydrophone LOFAR spectrum analysis |
| CN106908134A (en) * | 2016-12-21 | 2017-06-30 | 国家***第二海洋研究所 | A kind of deep-sea sound collecting apparatus and method |
| CN109451396A (en) * | 2018-10-17 | 2019-03-08 | 浙江大学 | A kind of sound field orientation regulation method based on wave beam deflection |
| CN109490893A (en) * | 2018-12-05 | 2019-03-19 | 山东省科学院海洋仪器仪表研究所 | The passive Frequency Adjustable formula underwater sound monitors positioning system |
| CN111010210A (en) * | 2019-12-20 | 2020-04-14 | 中国科学院声学研究所 | Underwater acoustic emission submerged buoy with cable and method thereof |
| CN111024049A (en) * | 2019-12-20 | 2020-04-17 | 中国科学院声学研究所 | Deep sea acoustic receiving submerged buoy and signal acquisition method |
| CN111010210B (en) * | 2019-12-20 | 2020-09-08 | 中国科学院声学研究所 | Underwater acoustic emission submerged buoy with cable and method thereof |
| RU2760912C1 (en) * | 2021-04-27 | 2021-12-01 | Акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор" | Method for determining the class of a noisy marine object |
| CN114442077A (en) * | 2022-01-21 | 2022-05-06 | 中国科学院声学研究所 | Cable type acoustic emission submerged buoy capable of monitoring underwater equipment in real time and monitoring method thereof |
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