CN1959434A - Multibeam ultrasonic fish detector - Google Patents
Multibeam ultrasonic fish detector Download PDFInfo
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- CN1959434A CN1959434A CN 200610151002 CN200610151002A CN1959434A CN 1959434 A CN1959434 A CN 1959434A CN 200610151002 CN200610151002 CN 200610151002 CN 200610151002 A CN200610151002 A CN 200610151002A CN 1959434 A CN1959434 A CN 1959434A
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Abstract
A fish detector of multi-wave beam ultrasonic ray type consists of above-water subunit, transverter array and receiving-transmitting switch. It is featured as forming above-water sub-unit by industrial control computer, signal generating unit, signal emitting unit, signal nursing unit, signal collecting/processing unit, display and storage, enabling to obtain more accurate information of fish school since multi-channel transverter is used in detector for having intensity of receiving echo raised.
Description
Technical field
What the present invention relates to is the multibeam ultrasonic fish detector that a kind of wide covering of the fan shoal of fish efficient information obtains.
Background technology
In the fishery exploitation, for the blindness that reduces to fish for, increase economic efficiency, on the large, medium and small type fishing boat of all substantially each fish detector equipment has been installed generally all.At present, the data that at home and abroad can find, patent and product about fish detector, what relate to substantially all is design and the application of carrying out around rectilinear single-stylus fish finder.The appearance of the fish detector that this prototype is born in eighties of last century fifties brought revolution once for the world ocean fishery, but in the 21 century that sea fishery is relied on more, their shortcomings and deficiencies manifest day by day.
The principle of work of rectilinear single-stylus fish finder is: adopt single beam emission detection ultrasound wave under fishing boat, and then with the single beam reception shoal of fish and seabed involuting wave, thereby judge the having or not of the shoal of fish, size and kind, and can attach information such as the depth information that provides the seabed and landforms.For the investigative range that increases rectilinear single-stylus fish finder, reduce detection blind area, require very wide detection wave beam (reaching usually ± about 40 °), and in order to realize farther detection range, exigent emissive power simultaneously, the two is a contradiction; Single-stylus fish finder also has a defective: can not tell thickness and the width of the shoal of fish, this gives to throw the net to fish for and brings difficulty; And, utilize single-stylus fish finder equipment, in order to improve the probability of finding the shoal of fish, also must dwindle the interval of fishing boat search, this low fish finding efficient has directly caused the raising of fishery cost of development.The limit decision of this three aspect rectilinear single-stylus fish finder be not suitable for the required active demand that can efficiently obtain the shoal of fish information in the wide covering of the fan of current sea fishery exploitation.
China is ocean big country, and the abundant stock of fish is the mainstay that satisfies China's people's lives needs and develop the economy in the ocean.But China is not fishery power, and gaps such as average annual fishery production and fishery power Japan, the U.S., Norway are bigger.Its reason is except no planned, the not enough science that China's fishery resources are fished for, and most important reason is exactly that the fishing apparatus that helps of China falls behind.According to daily magazine " MINATO ", the ancient wild electric corporation of Japan had been developed the fish detector (FCV-30) that can accurately measure fish length in 2005, owing to involve trade secret, was difficult to obtain its correlation technique and implementation detail.Succeeding in developing of this fish detector will make and fish for big fish etc. and selecting to become possibility in the resource operation, but and flexible Application in being the various aspects such as marine resources investigation of purpose with the fishing ground management.Point out according to another the article that domestic authoritative journals such as " Chinese aquatic science ", " aquatic product journal " are delivered, in recent years, China surrounding countries are equipped with the fishing boat that above-mentioned advanced person helps fishing equipment and go deep into China tradition fishing ground again and again, take fast spy, catch soon, catch the strategy that just runs, had a strong impact on China's fish production.The time and fishing boat that China of taking place equipment falls behind with the phenomenon of fishing later of fishing boat abroad, also reflect the backwardness of the existing single-stylus fish finder technology and equipment of China's fishing boat from another aspect.If fish detector is likened to the eyes of fishing boat offshore production, high performance fish detector then makes telescope and microscope on the fishing boat band, it can not only find out whether fish is arranged, the correct judgement that also has width and the thickness of the shoal of fish, and the identification size of fish and the function of kind, be to be related to one of most important equipment that can China's fish production have a good harvest.Because costing an arm and a leg of the external high-performance fish detector of import, all objective facts clearly show that China's fish production, breed, investigation are to the advanced fish detector technology of independent intellectual property right and the tight demand of equipment.
Summary of the invention
The low cost, the efficient development that the objective of the invention is for sea fishery provide a kind of multibeam ultrasonic fish detector, utilize the hyperchannel transducer array to improve the intensity that receives echo; Solved the correct decision problem of width and the thickness of the shoal of fish, improved greatly and fished for accuracy; And increased the single search shoal of fish scope of fishing boat, improved catching rate greatly; Owing to had the function that multi-beam forms, the acquisition capability of submarine topography information also is better than traditional single-stylus fish finder greatly, this has also further improved the supportability to fishing vessel's sailing safety.
The system of multibeam ultrasonic fish detector of the present invention forms and comprises: extension set waterborne (1), transducer array (2) and transceiver toggle switch (21).
The operation of extension set waterborne (1) control total system, the real-time demonstration and the storage of information.It combines signal generation system (4), signal transmitting system (5), signal condition system (6), signals collecting and disposal system (7), display (8) and storer (9) based on a built-in industrial control machine (3).Wherein, industrial computer (3), signal generation system (4), signal transmitting system (5) are connected with transceiver toggle switch (21) electric signal successively; Transceiver toggle switch (21) is connected with disposal system (7), industrial computer (3), storer (9) electric signal successively with signal condition system (6), signals collecting; Electric signal is connected between industrial computer (3) and the display (8); Transceiver toggle switch (21) is connected with the mutual electric signal of transducer array (2).
The even linear array that transducer array (2) is made up of equidistant hyperchannel transducer, its port number depends on the requirement of surveying index.It, is that sound wave emissions is gone out with electrical signal conversion, and when the receiving target echo, acoustical signal is converted to electric signal when the emission detection signal in conjunction with transceiver toggle switch (21), passes to extension set waterborne (1).
The task of signal generation system (4) is running parameter and the control command that receives built-in industrial control machine (3), and producing the direct impulse waveform, its composition comprises: DSP digital signal processor (10), pci interface controller (11), FLASH flash memory (12), storer (13), digital-to-analog converter (14) and waveform shaper (15).Wherein, pci interface controller (11), DSP (10), digital-to-analog converter (14) are connected with waveform shaper (15) electric signal successively; Between FLASH (12), DSP (10) and the storer (13) successively electric signal be connected.
Signal transmitting system (5) is finished the power amplification and the emission of direct impulse signal, the power amplifier (16) that is connected by electric signal successively and carry out impedance for matching adaptation (17) with transducer array (2) and form.
Signal condition system (6) finishes to be nursed one's health the hyperchannel target echo that is obtained by transducer array (2), forms the simulation pre-service amplifier (18), post amplifier (19) and the bandpass filter (20) that comprise electric signal connection successively.
The task of signals collecting and disposal system (7) is to finish the signal that signal condition system (6) is sent here to gather and handle, receive control command and real-time Load System that built-in industrial control machine (3) provides, produce the synchronizing signal of coordinating total system work, obtain the shoal of fish under water, information such as submarine topography and landforms, its formation comprises: pci interface controller (22), high-speed memory (23), bus interface (24), system's central logic controller (25), A-D converter (26), digital-to-analog converter (27), multiplier mode converter (28), DSP (29), the DSP group (30) that comprises 2 DSP, comprise the DSP group (31) of 3 DSP, and comprise 6 and 6 DSP one to one FLASH organize (32).Wherein, between pci interface controller (22) and system's central logic controller (25), bus interface (24), the high-speed memory (23) successively electric signal be connected; Pci interface controller (22) again with DSP (29), DSP group (30), DSP group (31) between successively electric signal be connected; FLASH group (32) is connected with DSP (29), DSP group (30), the mutual electric signal of DSP group (31) respectively again; DSP (29) again respectively with bus interface (24), A-D converter (26), digital-to-analog converter (27), multiplier mode converter (28) between electric signal be connected.
The effect of each several part is respectively described below:
The system that goes up operation at built-in industrial control machine (3) shows Control Software in real time, pass through pci bus, utilize mouse or keyboard respectively input working parameter and control command to the signal generation system (4) DSP (10) and the DSP (30) on signals collecting and the disposal system (7), control command comprises: startup command, pause command, cease and desist order, running parameter comprises: pulse length, transmit power levels, detect cycle; Can also show information such as the shoal of fish that sends from data Collection ﹠ Processing System (7), submarine topography, landforms in real time.And deposit these information in storer (13).
DSP (29) is responsible for the control command of built-in industrial control machine (3) transmission and the reception of running parameter, produce sampling pulse, by the post amplifier (19) in multiplier mode converter (28) the control signal conditioning system (6), control signal collection and disposal system (7): carry out the echoed signal collection by A-D converter (26), control digital-to-analog converter (27) is monitored echoed signal quality and A-D converter duty in real time, control signal conversion DSP group (30) is carried out conversion process to the acquired original signal, control information is resolved DSP group (31) and is carried out the shoal of fish, resolving of information such as submarine topography and landforms, control system central logic controller (25) produces the system synchronization signal, store the acquired original signal to high speed storer (23) by bus interface (24).DSP (29), DSP group (30), DSP group (31) data, algorithm and procedure stores separately are in each self-corresponding FLASH group (32).
Synchronizing signal, generation signals collecting and disposal system (7) that system's central logic controller (25) provides system go up data transmission and store the required various sequential combinational logics of raw data to high speed storer (23), and produce industrial computer (3) is visited high-speed memory (23) by pci interface controller (22) read-write logic.
The signal that bus interface (24) has not only been finished built-in industrial control machine (3) and DSP (29) visit high-speed memory (13) switches, and has avoided bus collision, but also has finished the driving of bus signals.
DSP (10) receives the order control code that is sent to signal generation system (4) by built-in industrial control machine (3) by pci interface controller (11), carry out corresponding decoding and obtain the order steering order, carry out corresponding detectable signal and calculate and be stored to high-speed memory (13) in real time, the signal of operation produces algorithm stores in FLASH (12) in the system synchronization signal that reception provides from the central logic controller (25) on signals collecting and the disposal system (7), DSP (10).The signal that produces is the single-frequency filler pulse signal of 200 KHz, be transferred to waveform shaper (15) and carry out shaping processing such as filtering, pass through power amplifier (16) then and carry out power amplification, between power amplifier (16) and transducer array (2), also has impedance matching box (17), its function is utilized well coupling of coupling inductance and transducer array (2) exactly, thereby obtains higher electricity-sound conversion efficiency.
Simulation pre-service amplifier (18) in the signal condition system (6), have high input impedance, low output impedance and very high gain bandwidth product, also has extremely low noise simultaneously, carry out impedance matching by front end build-out resistor and transducer array (2), thus undistorted ground receiving target echoed signal.
Post amplifier (19) further amplifies (enlargement factor is adjustable) to signal on the one hand, satisfies the requirement of the total amplification quantity of system; Carry out the Frequency mixing processing of system on the other hand, the high-frequency narrow-band echoed signal is modulated to the convenient further collection of low-frequency range and handles.
Bandpass filter (20) is the active second-order bandpass filter that utilizes operational amplifier to make up, and it is less to rise and fall in the signal frequency acceptance band, and the inside and outside rejection ratio of passband reaches 40dB.
Transmitting-receiving is closed and is put 8 ceramic fillet wafers splicing compositions of transducer array (2) employing.Form 8 ° * 60 ° emission directive property, and 8 ° * 2.5 ° reception directive property.
Principle of work of the present invention is:
Multibeam ultrasonic fish detector is installed on the water surface fishing boat, and transducer array (2) is positioned under water.When fishing boat began to search for the shoal of fish in the operation sea area, multibeam ultrasonic fish detector was started working in mode initiatively.The power supply of connection system according to the roughly situation in operation sea area, by the running parameter of demonstration Control Software initialization system, and is loaded into system, and start-up system is started working then.It is the CW pulse of 200 KHz that signal generation system (4) produces frequency, amplify by signal transmitting system (5), becoming electrical signal conversion acoustical signal to be transmitted in the water via transducer array (2) sends out, the sound wave of launching is returned via target reflection (scattering), transducer array (2) is converted to electric signal to the acoustical signal that receives, send signal condition system (6) to, then the signal after will nursing one's health delivers to signals collecting and disposal system (7) is gathered and handled, thereby obtain the shoal of fish in the investigative range, information such as submarine topography and landforms, and pass to industrial computer (3) via pci bus, on display (8), demonstrate the various information that observe in real time, simultaneously these information are deposited in storer (9).
Advantage of the present invention is: can obtain information such as the abundanter shoal of fish more accurately, submarine topography and landforms, improve the spatial resolving power of fish detector system.Can be widely used in the ocean, the perhaps fishery of inland lake exploitation, the detection mission of other targets such as fishery resources generaI investigation and depth measurement.
Description of drawings
The structural principle block diagram of Fig. 1 multibeam ultrasonic fish detector
The subsystem structured flowchart of Fig. 2 multibeam ultrasonic fish detector
The signals collecting of Fig. 3 multibeam ultrasonic fish detector and the circuit theory diagrams of disposal system
Embodiment
The transducer array of this invention (2) is installed in keel below or topside, and in order to guarantee Effect on Detecting, during installation, the axis of transducer array (2) is parallel with the water surface as far as possible.Consider from reducing navigation noise (mechanical conductive noise and propeller noise), reduce or avoid aspects such as bubble layer, the place that transducer array (2) produces the spray minimum when being chosen in ship's navigation as far as possible and hull jolts, rocking tendency is also minimum, generally in the position of disembark bow 1/3rd to 2/5ths, and draft should not surpass the degree of depth of keel.In order to utilize 8 ° navigation direction wave beam width to cover bigger search coverage, and reserve more setup time in order to give to throw the net to fish for, the placement in an acute angle of basic matrix face and surface level, sensing shipping agency direction.That DSP (10) adopts is the TMS320VC5416-160MHz of American TI Company, that pci interface controller (11) adopts is the PCI2040 of TI company, that digital-to-analog converter (14) adopts is the AD7945 of AD company, that simulation pre-service amplifier (18) adopts is the AD8066 of AD company, that pci interface controller (22) adopts is the S5933 of AMCC company, that bus interface (24) adopts is the SN74LVTH16245 of TI company, that system's central logic controller (25) adopts is the EPM3512 of ALTERA company, that A-D converter (26) is selected for use is the AD7865 of AD company, and that FLASH group (32) adopts is the AT25F1024 of atmel corp.
After being powered on to system by 220V AC or 48V DC, signal generation system (4) and signals collecting and disposal system (7) be boot respectively, enters holding state, starts the demonstration Control Software in the extension set waterborne (1), carries out the parameter setting.Two grades of transmitting sound power (standard, strong) are adjustable, and direct impulse length (0.25ms, 0.5ms, 1ms, 2ms) fourth gear is adjustable, and detect cycle (0.25s, 0.5s, 1s, 2s) fourth gear is adjustable.
After the parameter of finishing the work is provided with, by startup command multibeam ultrasonic fish detector is started working, workflow is: signal generation system (4) produces corresponding detectable signal according to the running parameter of setting, and launches with certain power by signal transmitting system (5).Signal condition system (6) begins to receive after the detectable signal battery has fired of signal transmitting system (5).Simultaneously, signals collecting and disposal system (7) begin to gather, the DSP group (31) that the information such as acquisition controlling DSP (29), signal transformation DSP group (30), submarine topography and landforms of sending into are then resolved is carried out information processing, resolve information such as obtaining the shoal of fish, submarine topography, landforms, be sent to built-in industrial control machine (3) by pci interface controller (22), and on display (8), show, deposit storer (9) simultaneously in.
Advantage of the present invention is: can obtain information such as the abundanter shoal of fish more accurately, submarine topography and landforms, improve the spatial resolving power of fish detector system.Can be widely used in the ocean, the perhaps fishery of inland lake exploitation, the detection mission of other targets such as fishery resources generaI investigation and depth measurement.
Claims (6)
1. multibeam ultrasonic fish detector, its structure comprises extension set waterborne (1), transducer array (2) and transceiver toggle switch (21), it is characterized in that extension set waterborne (1) is made up of industrial computer (3), signal generation system (4), signal transmitting system (5), signal condition system (6), signals collecting and disposal system (7), display (8) and storer (9); Wherein, industrial computer (3), signal generation system (4), signal transmitting system (5) are connected with transceiver toggle switch (21) electric signal successively; Transceiver toggle switch (21) is connected with disposal system (7), industrial computer (3), storer (9) electric signal successively with signal condition system (6), signals collecting; Electric signal is connected between industrial computer (3) and the display (8); Transceiver toggle switch (21) is connected with the mutual electric signal of transducer array (2).
2. multibeam ultrasonic fish detector as claimed in claim 1 is characterized in that signal generation system (4) is made up of DSP digital signal processor (10), pci interface controller (11), FLASH flash memory (12), storer (13), digital-to-analog converter (14) and waveform shaper (15); Wherein, pci interface controller (11), DSP (10), digital-to-analog converter (14) are connected with waveform shaper (15) electric signal successively; Between FLASH (12), DSP (10) and the storer (13) successively electric signal be connected.
3. multibeam ultrasonic fish detector as claimed in claim 1 is characterized in that signal transmitting system (5) is made up of power amplifier (16) and impedance matching box (17) that electric signal successively connects.
4. multibeam ultrasonic fish detector as claimed in claim 1 is characterized in that signal condition system (6) is made up of simulation pre-service amplifier (18), post amplifier (19) and the bandpass filter (20) of electric signal connection successively.
5. multibeam ultrasonic fish detector as claimed in claim 1 is characterized in that signals collecting and disposal system (7) are by pci interface controller (22), high-speed memory (23), bus interface (24), system's central logic controller (25), A-D converter (26), digital-to-analog converter (27), multiplier mode converter (28), DSP (29), DSP group (30), DSP group (31) and FLASH group (32); Wherein, between pci interface controller (22) and system's central logic controller (25), bus interface (24), the high-speed memory (23) successively electric signal be connected; Pci interface controller (22) again with DSP (29), DSP group (30), DSP group (31) between successively electric signal be connected; FLASH group (32) is connected with DSP (29), DSP group (30), the mutual electric signal of DSP group (31) respectively again; DSP (29) again respectively with bus interface (24), A-D converter (26), digital-to-analog converter (27), multiplier mode converter (28) between electric signal be connected.
6. multibeam ultrasonic fish detector as claimed in claim 1 is characterized in that the even linear array that transducer array (2) is made up of equidistant hyperchannel transducer, and its port number is by the requirement decision of surveying index.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101510026A CN100541230C (en) | 2006-11-09 | 2006-11-09 | Multibeam ultrasonic fish detector |
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| CNB2006101510026A CN100541230C (en) | 2006-11-09 | 2006-11-09 | Multibeam ultrasonic fish detector |
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| CN1959434A true CN1959434A (en) | 2007-05-09 |
| CN100541230C CN100541230C (en) | 2009-09-16 |
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| CNB2006101510026A Expired - Fee Related CN100541230C (en) | 2006-11-09 | 2006-11-09 | Multibeam ultrasonic fish detector |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833097A (en) * | 2010-05-19 | 2010-09-15 | 华南理工大学 | Underwater net cage multi-beam fish driving monitoring system and method |
| CN101334473B (en) * | 2008-08-04 | 2011-07-20 | 厦门大学 | Deep water net cage fish school status remote real time monitoring instrument based on acoustic multi-beam |
| CN103969653A (en) * | 2014-05-09 | 2014-08-06 | 哈尔滨工程大学 | Phase-control device of energy converter for five-wave-beam fish finder |
| CN103969639A (en) * | 2014-05-09 | 2014-08-06 | 哈尔滨工程大学 | Signal processing system and method of five-wave-beam fish finder |
| CN103983964A (en) * | 2014-05-09 | 2014-08-13 | 哈尔滨工程大学 | Composite signal generating system of multifunctional fish detector |
| CN103983977A (en) * | 2014-05-09 | 2014-08-13 | 哈尔滨工程大学 | Five-wave-beam fish detector |
| CN104062662A (en) * | 2014-07-03 | 2014-09-24 | 哈尔滨工程大学 | Multi-azimuth scanning net-sounder |
| CN104285849A (en) * | 2014-02-28 | 2015-01-21 | 中国农业大学 | Cage culture biomass monitoring acoustic system and method |
| CN104536007A (en) * | 2014-05-09 | 2015-04-22 | 哈尔滨工程大学 | Fish identification method based on multi-perspective acoustic data |
| CN105760115A (en) * | 2016-03-03 | 2016-07-13 | 哈尔滨工程大学 | Concentrated storage and rapid unloading method of multi-load data of UUV |
| CN106125080A (en) * | 2016-07-13 | 2016-11-16 | 上海海洋大学 | A kind of horizontal fish finder data three-dimensional display device and using method thereof |
| CN110579767A (en) * | 2019-09-17 | 2019-12-17 | 中国水产科学研究院渔业机械仪器研究所 | fish detector |
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2006
- 2006-11-09 CN CNB2006101510026A patent/CN100541230C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101334473B (en) * | 2008-08-04 | 2011-07-20 | 厦门大学 | Deep water net cage fish school status remote real time monitoring instrument based on acoustic multi-beam |
| CN101833097A (en) * | 2010-05-19 | 2010-09-15 | 华南理工大学 | Underwater net cage multi-beam fish driving monitoring system and method |
| CN101833097B (en) * | 2010-05-19 | 2012-08-08 | 华南理工大学 | Underwater net cage multi-beam fish driving monitoring system and method |
| CN104285849A (en) * | 2014-02-28 | 2015-01-21 | 中国农业大学 | Cage culture biomass monitoring acoustic system and method |
| CN103969639A (en) * | 2014-05-09 | 2014-08-06 | 哈尔滨工程大学 | Signal processing system and method of five-wave-beam fish finder |
| CN103983964A (en) * | 2014-05-09 | 2014-08-13 | 哈尔滨工程大学 | Composite signal generating system of multifunctional fish detector |
| CN103983977A (en) * | 2014-05-09 | 2014-08-13 | 哈尔滨工程大学 | Five-wave-beam fish detector |
| CN103969653A (en) * | 2014-05-09 | 2014-08-06 | 哈尔滨工程大学 | Phase-control device of energy converter for five-wave-beam fish finder |
| CN104536007A (en) * | 2014-05-09 | 2015-04-22 | 哈尔滨工程大学 | Fish identification method based on multi-perspective acoustic data |
| CN103969653B (en) * | 2014-05-09 | 2016-06-29 | 哈尔滨工程大学 | A kind of five wave beam fish detector transducer phase-control device |
| CN103983964B (en) * | 2014-05-09 | 2016-12-07 | 哈尔滨工程大学 | A kind of composite signal generation system of multi-functional fish detector |
| CN104062662A (en) * | 2014-07-03 | 2014-09-24 | 哈尔滨工程大学 | Multi-azimuth scanning net-sounder |
| CN105760115A (en) * | 2016-03-03 | 2016-07-13 | 哈尔滨工程大学 | Concentrated storage and rapid unloading method of multi-load data of UUV |
| CN105760115B (en) * | 2016-03-03 | 2018-09-28 | 哈尔滨工程大学 | UUV multi-load data are centrally stored with fast discharging method |
| CN106125080A (en) * | 2016-07-13 | 2016-11-16 | 上海海洋大学 | A kind of horizontal fish finder data three-dimensional display device and using method thereof |
| CN110579767A (en) * | 2019-09-17 | 2019-12-17 | 中国水产科学研究院渔业机械仪器研究所 | fish detector |
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