CN101726740A - Ultrasonic monitor device of net cage fish culture biomass evaluation - Google Patents
Ultrasonic monitor device of net cage fish culture biomass evaluation Download PDFInfo
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- CN101726740A CN101726740A CN200910198691A CN200910198691A CN101726740A CN 101726740 A CN101726740 A CN 101726740A CN 200910198691 A CN200910198691 A CN 200910198691A CN 200910198691 A CN200910198691 A CN 200910198691A CN 101726740 A CN101726740 A CN 101726740A
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Abstract
The invention discloses an ultrasonic monitor device of net cage fish culture biomass evaluation. An ultrasonic transducer emits ultrasonic probe pulse signals to cultured fishes in a net cage and receives reflection ultrasonic pulse signals of the cultured fishes in the net cage; and the reflection ultrasonic pulse signals are processed through an ultrasonic transceiver and a signal processing device, therefore, the invention realizes real-time monitor to a water range in the net cage, reflects the condition of the cultured fishes in the net cage, carries out biomass evaluation, displays a treatment result through a display device and realizes the purpose of the invention.
Description
Technical field
The present invention relates to a kind of ultrasonic monitor device, be particularly related to a kind of current intelligence of fish in the monitoring ultrasonic net cage and growth pattern of biomass passed through, with the ultrasonic monitor device of net cage fish culture biomass evaluation of current intelligence of culturing fish in Yu Haiyang and the lake net cage and the assessment of fish culture in net pen total amount.
Background technology
At present, the lake in China inland and from south to north ten thousand li maritime provinces all carrying out the cage culture of various economic fish, as Hei Jun, golden silvery pomfret, yellow croaker, sturgeons etc. are of high nutritive value, delicious flavour welcome by the domestic and international market, and the various fish of cage culture is launched in the whole nation.
But, the cage culture fish are this propagates the difficult problem that mode but faces monitoring artificially, because the transparency of water is limited, the fish of the breed in the net cage are invisible, and the harmful animal animal can often be scored a goal and be gone into, and the culturist need just change once net in several days for the broken fish of anti-net escapes, and most fish are all liked the feed at night, and labor capacity is very big.
Therefore, need a kind of employing scientific method especially, the dynamic device of fish is that the cage culture fisherman presses in the monitoring net at any time, and the cost of its detection their institute again is receptible.
Summary of the invention
The object of the present invention is to provide a kind of ultrasonic monitor device of net cage fish culture biomass evaluation, make the state that the workman understands breed fish in the net cage at any time of culturing, culture the increase situation of total amount in the assessment net cage.
Technical matters solved by the invention can realize by the following technical solutions:
A kind of ultrasonic monitor device of net cage fish culture biomass evaluation is characterized in that, it comprises:
One supersonic transducer array is surveyed a plurality of directions in the net cage by a plurality of ultrasonic listening pulse signals of downward a plurality of direction radiation in net cage, and receives the reflectance ultrasound wave pulse signal of cultured fishes in the net cage;
One ultrasonic receiving device, thereby carry ultrasound wave audio frequency electric pulse for described supersonic transducer array and excite described supersonic transducer array emission ultrasonic listening pulse, receive also this signal amplification of reflectance ultrasound wave pulse signal, detection, the amplification again of cultured fishes in the net cage, be transferred to described signal processing apparatus and handle;
One signal processing apparatus receives the signal that described ultrasonic receiving device transmits and handles, and monitors the water body scope in the net cage in real time, the situation of cultured fishes and carry out biomass evaluation in the reflection net cage; And
One display device is used to show the information that draws after the described signal processing means processes;
Be connected by waterproof circuit electric signal between described supersonic transducer array and the described ultrasonic receiving device, described ultrasonic receiving device is connected with display device with described signal processing apparatus successively, and described ultrasonic receiving device is connected with external power source.
In one embodiment of the invention, described supersonic transducer array is by a wide-angle spherical crown surface housing and be arranged on evenly that a plurality of transducer primitives on the described spherical crown surface housing are sealed to each other to be constituted, the interval number of degrees between two adjacent described transducer primitives are a bit larger tham acoustic beam angle (half-power point) number of degrees of described transducer primitive, the acoustic beam main lobe of described transducer primitive can not overlapped each other, and the ultrasonic listening pulse that described supersonic transducer array sends can be not overlapping.
Further, be connected to each other and transmit mutually signal between described supersonic transducer array and the described ultrasonic receiving device by the multicore water-proof cable.
In one embodiment of the invention, be added to the electric signal of the narrow modulating pulse of high carrier frequency on the described supersonic transducer array of low mechanical q-value, be easy to prevent the echoed signal aliasing of fish and net, also be easy to distinguish the individuality in the concentrated school.
In one embodiment of the invention, ultrasonic receiving device by one in described supersonic transducer array loads the transmitter of ultrasound wave audio frequency electric impulse signal and a plurality of net cage that is used to receive described supersonic transducer array output the receiver of the reflectance ultrasound wave pulse signal of cultured fishes constitute.
Further, the reflectance ultrasound wave pulse signal of cultured fishes carries out signal amplification, detection, is transferred to described signal processing apparatus again after the processing and amplifying again by multichannel and column amplifier in the net cage of described receiver reception.
In one embodiment of the invention, be provided with the multi-channel sampling device that the signal of described ultrasonic receiving device output is sampled in the described signal processing apparatus, the signal after described multi-channel sampling device sampling is handled by described signal processing apparatus.
In one embodiment of the invention, in order to ensure when school density is big, the shoal of fish is to the accuracy of blocking not impact evaluation of ultrasonic listening pulse, described ultrasonic monitor device of net cage fish culture biomass evaluation also comprises the standard target ball of a diameter greater than the ultrasound wave wavelength, the transmission loss (TL) of further calibrating sound wave in the actual measurement reflecting acoustic pressure value of different depth with standard ball.
Further, described standard target ball is a solid steel ball.
Ultrasonic monitor device of net cage fish culture biomass evaluation of the present invention, by supersonic transducer array in net cage cultured fishes emissions ultrasonic listening pulse signal and receive the reflectance ultrasound wave pulse signal of the cultured fishes in the net cage, then by ultrasonic receiving device and signal processing means processes, realize the interior water body scope of monitoring net cage in real time, reflect the situation of cultured fishes in the net cage and carry out biomass evaluation, result shows by display device, realizes purpose of the present invention.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of supersonic transducer array of the present invention;
Fig. 3 is the treatment scheme synoptic diagram of signal processing apparatus of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Embodiment 1
As shown in Figure 1, ultrasonic monitor device of net cage fish culture biomass evaluation of the present invention, it comprises: a supersonic transducer array 10, a ultrasonic receiving device 20, a signal processing apparatus 30 and a display device 40; Wherein, supersonic transducer array 10 conducts are parts under water, the sealing back is drawn by multicore water-proof cable 13, be connected with ultrasonic receiving device 20 with weather proof receptacle, the a plurality of passages output of ultrasonic receiving device 20 is transported to signal processing apparatus 30 through multi-channel sampling device 31, handles in signal processing apparatus 30 and by image and data after display device 40 display process.
As shown in Figure 2, supersonic transducer array 10 is by a wide-angle spherical crown surface housing 11 and be arranged on evenly that a plurality of transducer primitives 12 on the spherical crown surface housing 11 are sealed to each other to be constituted, supersonic transducer array 10 can place on the water surface of net cage middle part with rope, by a plurality of ultrasonic listening pulse signals of downward a plurality of direction radiation in net cage a plurality of directions in the net cage are surveyed, and received the reflectance ultrasound wave pulse signal of cultured fishes in the net cage; The interval number of degrees between two adjacent transducer primitives 12 are a bit larger tham acoustic beam angle (half-power point) number of degrees of transducer primitive 12, the acoustic beam main lobe of transducer primitive 12 can not overlapped each other, and the ultrasonic listening pulse that supersonic transducer array 10 sends can be not overlapping.
In the present embodiment, be added to the electric signal of the narrow modulating pulse of high carrier frequency on the supersonic transducer array 10 of low mechanical q-value, be easy to prevent the echoed signal aliasing of fish and net, also be easy to distinguish the individuality in the concentrated school.
In the present embodiment, in a net cage, supersonic transducer array 10 is surveyed in net cage with a plurality of acoustic beams of zero lap at net cage water surface middle part simultaneously, improves the representativeness of sampling; When trend is big, during shoal of fish skewness, the sampled point that supersonic transducer array 10 increases does not need much yet.
As shown in Figure 3, signal processing apparatus 30 is made of with the Digital Signal Analysis processing section the analog signal processing part, transducer primitive 12 converts the ping of shoal of fish reflection to the electric impulse signal of same frequency, this audio frequency electric impulse signal is when amplifying through amplifier, and amplification quantity changes and carry out compensating for loss and damage with distance.Electric signal after compensation is amplified is through being undertaken exporting digital signal after the A/D conversion by multi-channel sampling device 31 after the detection, signal is handled through a square summation, and when school density is big, use standard target nodule number word correction transmission loss (TL), last data processed result is promptly added up biomass and is shown by display device 40.
Be provided with the multi-channel sampling device 31 that the signal of ultrasonic receiving device 20 outputs is sampled in the signal processing apparatus 30, the workflow of signal processing apparatus 30 is referring to Fig. 3; Signal after 31 samplings of multi-channel sampling device is handled by signal processing apparatus 30; The reflectance ultrasound wave pulse signal of cultured fishes carries out 2 grades of superaudiies amplifications by multichannel and column amplifier 23 in the net cage that receiver 22 receives, again with this amplifying signal detection, at last rectified signal is amplified, for multi-channel sampling device 31 samplings of signal processing apparatus 30.The amplification quantity that multichannel and column amplifier 23 2 grades excusing from death are amplified frequently is the square tooth Current Control that linear change is in time arranged in the range of surveying, making 2 grades amplification total amount carry out d2 with fish depth d of living in doubly compensates, and water can compensation in signal processing apparatus 30 easily to the absorption loss of sound wave, first and second grades of linear gains in time at each multichannel and column amplifier 23 change, and accurately compensate the spherical diffusion loss of (surveying when disperseing the shoal of fish) sound wave in 15 meters ranges.
This arrangement all is used to tackle the large-signal variation range of individual fish to the shoal of fish with the dynamic range of multichannel and column amplifier 23, can guarantee that multichannel and column amplifier 23 can not saturation distortion occur and influence the authenticity of data.
In the present embodiment, in order to ensure when school density is big, the shoal of fish is to the accuracy of blocking not impact evaluation of ultrasonic listening pulse, described ultrasonic monitor device of net cage fish culture biomass evaluation also comprises the standard target ball of a diameter greater than the ultrasound wave wavelength, the transmission loss (TL) of further calibrating sound wave in the actual measurement reflecting acoustic pressure value of different depth with standard ball; Described standard target ball is a solid steel ball, and under the clean situation of surface clean, its target strength can accurately be calculated; When school density is big in the net cage, increase compensation correction by standard target ball test signal and signal processing apparatus 30.
The workflow of ultrasonic monitor device of net cage fish culture biomass evaluation of the present invention is as follows;
Under the less relatively situation of wave, supersonic transducer array 10 usefulness lanyard on the water surface at net cage middle part, are kept back side level up, its cable is connected on the ultrasonic receiving device 20 on the net cage work boat.Ultrasonic receiving device 20 is connected on supporting the 24V accumulator and signal processing apparatus 30, opens ultrasonic receiving device 20 and signal processing apparatus 30 power supplys, just can start working.On display device 40, can show the reflection of the shoal of fish detected and net cage bottom, by the procedure operation that has been provided with, can add up the phonometer quantity of the shoal of fish of detecting, according to the volume of the water of acoustic beam sampling, be converted to the phonometer quantity of whole net cage.Under the situation of known monomers fish eyes mark intensity, (as do not know this data, then should in the abortive haul case, put into the close fish of counting of an amount of specification, survey the average criterion intensity that can get the monomer fish behind the certain hour), phonometer quantity can be converted to the bar number of fish, how many bar fishes are promptly arranged in the net cage.As import monomer fish weight to notebook computer, just can assess the weight of fish in the net cage.
When trend was big, fish was swum at the top current, skewness, and supersonic transducer array 10 should increase measurement point (as everywhere, being as the criterion not detect the net cage wall) by the water surface in net cage, average again.
When school density is too big, the acoustic reflection value decay of following fish is very big, transfer on the degree of depth different under the supersonic transducer array 10 with the standard target ball, transducer primitive 12 channel measurement target acoustic reflection intensity in the middle of supersonic transducer array 10 are with this rule evaluation of alignment value.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. ultrasonic monitor device of net cage fish culture biomass evaluation is characterized in that it comprises:
One supersonic transducer array is surveyed a plurality of directions in the net cage by a plurality of ultrasonic listening pulse signals of downward a plurality of direction radiation in net cage, and receives the reflectance ultrasound wave pulse signal of cultured fishes in the net cage;
One ultrasonic receiving device, thereby carry ultrasound wave audio frequency electric pulse for described supersonic transducer array and excite described supersonic transducer array emission ultrasonic listening pulse, receive also this signal amplification of reflectance ultrasound wave pulse signal, detection, the amplification again of cultured fishes in the net cage, be transferred to described signal processing apparatus and handle;
One signal processing apparatus receives the signal that described ultrasonic receiving device transmits and handles, and monitors the water body scope in the net cage in real time, the situation of cultured fishes and carry out biomass evaluation in the reflection net cage; And
One display device is used to show the information that draws after the described signal processing means processes;
Be connected by waterproof circuit electric signal between described supersonic transducer array and the described ultrasonic receiving device, described ultrasonic receiving device is connected with display device with described signal processing apparatus successively, and described ultrasonic receiving device is connected with external power source.
2. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 1, it is characterized in that, described supersonic transducer array is by a wide-angle spherical crown surface housing and be arranged on evenly that a plurality of transducer primitives on the described spherical crown surface housing are sealed to each other to be constituted, the interval number of degrees between two adjacent described transducer primitives are a bit larger tham acoustic beam angle (half-power point) number of degrees of described transducer primitive, the acoustic beam main lobe of described transducer primitive can not overlapped each other, and the ultrasonic listening pulse that described supersonic transducer array sends can be not overlapping.
3. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 2 is characterized in that, is connected to each other and transmits mutually signal between described supersonic transducer array and the described ultrasonic receiving device by the multicore water-proof cable.
4. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 2, it is characterized in that, electric signal with the narrow modulating pulse of high carrier frequency is added on the described supersonic transducer array of low mechanical q-value, be easy to prevent the echoed signal aliasing of fish and net, also be easy to distinguish the individuality in the concentrated school.
5. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 1, it is characterized in that, described ultrasonic receiving device by one in described supersonic transducer array loads the transmitter of ultrasound wave audio frequency electric impulse signal and a plurality of net cage that is used to receive described supersonic transducer array output the receiver of the reflectance ultrasound wave pulse signal of cultured fishes constitute.
6. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 5, it is characterized in that the reflectance ultrasound wave pulse signal of cultured fishes carries out signal amplification, detection, is transferred to described signal processing apparatus again after the processing and amplifying again by multichannel and column amplifier in the net cage that described receiver receives.
7. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 1, it is characterized in that, be provided with the multi-channel sampling device that the signal of described ultrasonic receiving device output is sampled in the described signal processing apparatus, the signal after described multi-channel sampling device sampling is handled by described signal processing apparatus.
8. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 1, it is characterized in that, described ultrasonic monitor device of net cage fish culture biomass evaluation also comprises the standard target ball of a diameter greater than the ultrasound wave wavelength, the transmission loss (TL) of further calibrating sound wave in the actual measurement reflecting acoustic pressure value of different depth with standard ball.
9. ultrasonic monitor device of net cage fish culture biomass evaluation as claimed in claim 8 is characterized in that, described standard target ball is a solid steel ball.
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| CN200910198691A CN101726740A (en) | 2009-11-12 | 2009-11-12 | Ultrasonic monitor device of net cage fish culture biomass evaluation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540192A (en) * | 2010-12-06 | 2012-07-04 | 古野电气株式会社 | Method and device for detecting target object |
| CN102721942A (en) * | 2012-06-29 | 2012-10-10 | 中国科学院声学研究所 | Acoustic positioning system and acoustic positioning method for object in building environment |
| CN103444613A (en) * | 2013-08-29 | 2013-12-18 | 北京农业信息技术研究中心 | Feeding control system and method for fish culture |
| CN104285849A (en) * | 2014-02-28 | 2015-01-21 | 中国农业大学 | Cage culture biomass monitoring acoustic system and method |
| CN104931120A (en) * | 2015-06-23 | 2015-09-23 | 李成启 | Cage fish-farming weight detection method |
| CN104996348A (en) * | 2015-05-22 | 2015-10-28 | 李成启 | Fish seawater-recirculation aquaculture net cage |
| CN107015586A (en) * | 2016-01-27 | 2017-08-04 | 余建华 | A kind of fishery cultivating intelligence control system and control method |
| CN107918132A (en) * | 2017-11-01 | 2018-04-17 | 北京臻迪科技股份有限公司 | Underwater ultrasound phased array detection system and undersea detection method |
| CN110771548A (en) * | 2019-10-31 | 2020-02-11 | 上海埃威航空电子有限公司 | Biomass evaluation device and method for deep and open sea aquaculture net cage based on statistics |
| WO2023162276A1 (en) * | 2022-02-28 | 2023-08-31 | 本多電子株式会社 | Ultrasonic transceiver |
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2009
- 2009-11-12 CN CN200910198691A patent/CN101726740A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540192A (en) * | 2010-12-06 | 2012-07-04 | 古野电气株式会社 | Method and device for detecting target object |
| CN102540192B (en) * | 2010-12-06 | 2015-10-07 | 古野电气株式会社 | Thing mark sniffer and thing mark detection method |
| CN102721942A (en) * | 2012-06-29 | 2012-10-10 | 中国科学院声学研究所 | Acoustic positioning system and acoustic positioning method for object in building environment |
| CN103444613B (en) * | 2013-08-29 | 2014-11-19 | 北京农业信息技术研究中心 | Feeding control system and method for fish culture |
| CN103444613A (en) * | 2013-08-29 | 2013-12-18 | 北京农业信息技术研究中心 | Feeding control system and method for fish culture |
| CN104285849A (en) * | 2014-02-28 | 2015-01-21 | 中国农业大学 | Cage culture biomass monitoring acoustic system and method |
| CN104996348A (en) * | 2015-05-22 | 2015-10-28 | 李成启 | Fish seawater-recirculation aquaculture net cage |
| CN104931120A (en) * | 2015-06-23 | 2015-09-23 | 李成启 | Cage fish-farming weight detection method |
| CN107015586A (en) * | 2016-01-27 | 2017-08-04 | 余建华 | A kind of fishery cultivating intelligence control system and control method |
| CN107918132A (en) * | 2017-11-01 | 2018-04-17 | 北京臻迪科技股份有限公司 | Underwater ultrasound phased array detection system and undersea detection method |
| CN110771548A (en) * | 2019-10-31 | 2020-02-11 | 上海埃威航空电子有限公司 | Biomass evaluation device and method for deep and open sea aquaculture net cage based on statistics |
| WO2023162276A1 (en) * | 2022-02-28 | 2023-08-31 | 本多電子株式会社 | Ultrasonic transceiver |
| JP7365744B1 (en) | 2022-02-28 | 2023-10-20 | 本多電子株式会社 | Ultrasonic transducer |
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Application publication date: 20100609 |