CN104304114A - Deepwater net cage and net monitoring method and device based on supershort baseline - Google Patents
Deepwater net cage and net monitoring method and device based on supershort baseline Download PDFInfo
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- CN104304114A CN104304114A CN201410542326.7A CN201410542326A CN104304114A CN 104304114 A CN104304114 A CN 104304114A CN 201410542326 A CN201410542326 A CN 201410542326A CN 104304114 A CN104304114 A CN 104304114A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Environmental Sciences (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Marine Sciences & Fisheries (AREA)
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- Biodiversity & Conservation Biology (AREA)
Abstract
The invention discloses a deepwater net cage and net monitoring method and a device based on supershort baseline and relates to the field of electromechanical integration. The method comprises the following steps of receiving a plurality of echo signals obtained from sound wave positioning signals sent from beacons according to positioning arrays, respectively obtaining space coordinates of the beacons corresponding to the echo signals according to the received echo signals and the sound wave positioning signals sent by the positioning arrays, calculating space volume of the deepwater net cage and net according to the obtained space coordinates of the beacons, and sending the space volume and the space coordinates to a cultivating monitoring center, so that the cultivating monitoring center can determine whether the deepwater net cage and net is in a normal cultivating state or not according to the space volume and the space coordinates. Through the use of the underwater net cage and net monitoring method, the actual underwater state of the net cage and net is grasped, and the method and the device play an early warning role through the abnormal analysis of the net cage and net state.
Description
Technical field
The present invention relates to field of electromechanical integration, the method for particularly a kind of monitoring of the deep-water net cage culture cage netting based on underwater sound ultra-short baseline underwater position fixing technique and device.
Background technology
In breeding process, deep water mesh cage is owing to being subject to the impact of surrounding seawater flowing, and cage netting can deform, and this distortion can reduce actual available breeding spaces.When seawater velocity is excessive, the scope of activities of this distortion heavy compression aquaculture organism body, worsens the living environment of aquaculture organism body, to activity, the bait generation adverse influence of aquaculture organism body, destroys normal breeding process.In addition, also can aggravate the wearing and tearing of cage netting, cage netting even may be caused to damage and the escape of aquaculture organism body, thus bring more serious loss to raiser.
What existing cage netting monitoring device adopted is underwater optics technology or sonar monitoring technology, and underwater optics technology is not suitable for muddy sea-water area, monitors that effect is bad; Sonar monitoring technology is actually monitors the aquaculture organism body in net cage, only after cage netting breakage, can be found when aquaculture organism body is escaped.In addition, sonar monitoring technology cannot position the true form of cage netting, therefore, can not calculate the actual cultivation volume of net cage.Visible, cage netting monitoring is most important for the design of breeding process and net cage, is all the problem needing tackling key problem all the time.
Summary of the invention
A kind of method that the object of the present invention is to provide deep water net cage net clothing based on ultra-short baseline to monitor and device, muddy sea-water area monitoring effect can be solved poor, hysteresis quality is existed to the monitoring of aquaculture organism body in net cage, and the true form of cage netting cannot be located, the problem of the actual cultivation volume of cage netting can not be calculated.
According to an aspect of the present invention, provide a kind of method that deep water net cage net clothing based on ultra-short baseline is monitored, comprising:
Receive multiple echo-signal obtained according to the acoustic location signal that oriented array sends from beacon;
According to the acoustic location signal that the multiple echo-signal received and oriented array send, obtain the space coordinates of the beacon corresponding to described multiple each echo-signal respectively;
The spatial volume of deep water net cage net clothing is gone out according to the spatial coordinates calculation of the multiple beacons obtained, and described spatial volume and space coordinates are sent to cultivation Surveillance center, to cultivate Surveillance center determining whether described deep water net cage net clothing is in normal cultivation state according to described spatial volume and space coordinates.
Preferably, the step that described beacon obtains echo-signal according to the acoustic location signal that oriented array sends comprises:
Described beacon identifies the signal from described oriented array received, and judges whether it is acoustic location signal;
If the signal from described oriented array received is acoustic location signal, then generate echo-signal;
Wherein, described echo-signal is m sequential coding answer signal.
Preferably, the described acoustic location signal sent according to the multiple echo-signal received and oriented array, the step obtaining the space coordinates of the beacon corresponding to described multiple each echo-signal respectively comprises:
Phase-detection is carried out to the acoustic location signal that the multiple echo-signal received and oriented array send, obtains the phase difference of described multiple each echo-signal respectively;
According to the time receiving multiple echo-signal and oriented array and send acoustic location signal, obtain corresponding to the distance of beacon apart from described oriented array of described multiple each echo-signal respectively;
According to the phase difference of the described multiple each echo-signal obtained and the beacon of the described each echo-signal of correspondence apart from the distance of described oriented array, calculate the space coordinates of the beacon corresponding to described multiple each echo-signal.
Preferably, the step that the spatial coordinates calculation of described multiple beacons according to obtaining goes out the spatial volume of deep water net cage net clothing comprises:
The space coordinates of described multiple beacon every layer of beacon is in a circumferential direction calculated, obtains the area that described every layer of beacon surrounds;
According to the space coordinates of described multiple beacon, calculate the height in the depth direction between every layer of beacon;
Height between the area surrounded according to described every layer of beacon and every layer of beacon, obtains the spatial volume of deep water net cage net clothing.
Preferably, according to described spatial volume and space coordinates, described cultivation Surveillance center determines that the step whether described deep water net cage net clothing is in normal cultivation state comprises:
Described cultivation Surveillance center, according to described spatial volume and space coordinates, analyzes described space coordinates and whether there is exception;
If described space coordinates exists abnormal, then judge that described deep water net cage net clothing has breakage, be in abnormal cultivation state, otherwise, then judge that described deep water net cage net clothing is in normal cultivation state.
According to a further aspect in the invention, provide the device that a kind of deep water net cage net clothing based on ultra-short baseline is monitored, comprising:
Receiver module, for receiving multiple echo-signal obtained according to the acoustic location signal that oriented array sends from beacon;
Index module, for the acoustic location signal sent according to the multiple echo-signal received and oriented array, obtains the space coordinates of the beacon corresponding to described multiple each echo-signal respectively;
Determination module, for going out the spatial volume of deep water net cage net clothing according to the spatial coordinates calculation of the multiple beacons obtained, and described spatial volume and space coordinates are sent to cultivation Surveillance center, to cultivate Surveillance center determining whether described deep water net cage net clothing is in normal cultivation state according to described spatial volume and space coordinates.
Preferably, described receiver module comprises further:
Recognin module, identifies the signal from described oriented array received for described beacon, judges whether it is acoustic location signal;
Generate submodule, if be acoustic location signal for the signal from described oriented array received, then generate echo-signal.
Preferably, described index module comprises further:
Phason module, carries out phase-detection for the acoustic location signal sent the multiple echo-signal received and oriented array, obtains the phase difference of described multiple each echo-signal respectively;
Chronon module, for according to the time receiving multiple echo-signal and oriented array and send acoustic location signal, obtains corresponding to the distance of beacon apart from described oriented array of described multiple each echo-signal respectively;
Calculating sub module, the phase difference of described multiple each echo-signals obtained for basis and the beacon of the described each echo-signal of correspondence, apart from the distance of described oriented array, calculate the space coordinates of the beacon corresponding to described multiple each echo-signal.
Preferably, described determination module comprises further:
Area submodule, for calculating the space coordinates of described multiple beacon every layer of beacon in a circumferential direction, obtains the area that described every layer of beacon surrounds;
Height submodule, for the space coordinates according to described multiple beacon, calculates the height in the depth direction between every layer of beacon;
Volume submodule, for the height between the area that surrounds according to described every layer of beacon and every layer of beacon, obtains the spatial volume of deep water net cage net clothing.
Preferably, described determination module further comprises:
Analyze submodule, for described cultivation Surveillance center according to described spatial volume and space coordinates, analyze described space coordinates and whether there is exception;
Decision sub-module, if exist for described space coordinates abnormal, then judges that described deep water net cage net clothing has breakage, is in abnormal cultivation state, otherwise, then judge that described deep water net cage net clothing is in normal cultivation state.
Compared with prior art, beneficial effect of the present invention is: can by a kind of method providing underwater net cage etting to monitor, not by the restriction of muddy sea-water area, the actual submerged condition of real-time grasp cage netting, what calculate cage netting effectively cultivates volume in real time, to make fast reaction in a bursty situation, avoid unnecessary loss.Meanwhile, by the remote transmission of breeding process cage netting data and storage, and the anomaly analysis to cage netting state, play the effect of early warning.
Accompanying drawing explanation
Fig. 1 is the Method And Principle figure that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored;
Fig. 2 is the structure drawing of device that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored;
Fig. 3 is the equipments overall structure schematic diagram that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored;
Fig. 4 is single beacon positioning principle figure that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored;
Fig. 5 is the radiating portion structure chart that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored;
Fig. 6 is the beacon infrastructure figure that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored;
Fig. 7 is the beacon workflow diagram that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the Method And Principle figure that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, and as shown in Figure 1, concrete steps are as follows:
Step S1: receive multiple echo-signal obtained according to the acoustic location signal that oriented array sends from beacon.
In step sl, the step that described beacon obtains echo-signal according to the acoustic location signal that oriented array sends comprises:
Described beacon identifies the signal from described oriented array received, and judges whether it is acoustic location signal;
If the signal from described oriented array received is acoustic location signal, then generate echo-signal;
Wherein, described echo-signal is m sequential coding answer signal.
Step S2: the acoustic location signal sent according to the multiple echo-signal received and oriented array, obtains the space coordinates of the beacon corresponding to described multiple each echo-signal respectively.
In step s 2, the described acoustic location signal sent according to the multiple echo-signal received and oriented array, the step obtaining the space coordinates of the beacon corresponding to described multiple each echo-signal respectively comprises:
Phase-detection is carried out to the acoustic location signal that the multiple echo-signal received and oriented array send, obtains the phase difference of described multiple each echo-signal respectively;
According to the time receiving multiple echo-signal and oriented array and send acoustic location signal, obtain corresponding to the distance of beacon apart from described oriented array of described multiple each echo-signal respectively;
According to the phase difference of the described multiple each echo-signal obtained and the beacon of the described each echo-signal of correspondence apart from the distance of described oriented array, calculate the space coordinates of the beacon corresponding to described multiple each echo-signal.
Step S3: the spatial volume going out deep water net cage net clothing according to the spatial coordinates calculation of the multiple beacons obtained, and described spatial volume and space coordinates are sent to cultivation Surveillance center, to cultivate Surveillance center determining whether described deep water net cage net clothing is in normal cultivation state according to described spatial volume and space coordinates.
In step s3, the step that the spatial coordinates calculation of described multiple beacons according to obtaining goes out the spatial volume of deep water net cage net clothing comprises:
The space coordinates of described multiple beacon every layer of beacon is in a circumferential direction calculated, obtains the area that described every layer of beacon surrounds;
According to the space coordinates of described multiple beacon, calculate the height in the depth direction between every layer of beacon;
Height between the area surrounded according to described every layer of beacon and every layer of beacon, obtains the spatial volume of deep water net cage net clothing.
Further, according to described spatial volume and space coordinates, described cultivation Surveillance center determines that the step whether described deep water net cage net clothing is in normal cultivation state comprises:
Described cultivation Surveillance center, according to described spatial volume and space coordinates, analyzes described space coordinates and whether there is exception;
If described space coordinates exists abnormal, then judge that described deep water net cage net clothing has breakage, be in abnormal cultivation state, otherwise, then judge that described deep water net cage net clothing is in normal cultivation state.
Fig. 2 is the structure drawing of device that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, and as shown in Figure 2, comprising: receiver module, index module and determination module.
Described receiver module is for receiving multiple echo-signal obtained according to the acoustic location signal that oriented array sends from beacon.Wherein, the recognin module of described receiver module is used for described beacon and identifies the signal from described oriented array received, and judges whether it is acoustic location signal.If the signal from described oriented array that the generation submodule of described receiver module is used for receiving is acoustic location signal, then generate echo-signal.
Described index module is used for the acoustic location signal sent according to the multiple echo-signal received and oriented array, obtains the space coordinates of the beacon corresponding to described multiple each echo-signal respectively.Wherein, the acoustic location signal that the phason module of described index module is used for the multiple echo-signal received and oriented array send carries out phase-detection, obtains the phase difference of described multiple each echo-signal respectively.The chronon module of described index module is used for the time according to receiving multiple echo-signal and oriented array and send acoustic location signal, obtains corresponding to the distance of beacon apart from described oriented array of described multiple each echo-signal respectively.The calculating sub module of described index module to be used for according to the phase difference of described multiple each echo-signals obtained and the beacon of the described each echo-signal of correspondence, apart from the distance of described oriented array, calculating the space coordinates of the beacon corresponding to described multiple each echo-signal.
Described determination module is used for the spatial volume going out deep water net cage net clothing according to the spatial coordinates calculation of the multiple beacons obtained, and described spatial volume and space coordinates are sent to cultivation Surveillance center, to cultivate Surveillance center determining whether described deep water net cage net clothing is in normal cultivation state according to described spatial volume and space coordinates.Wherein, the area submodule of described determination module is used for calculating the space coordinates of described multiple beacon every layer of beacon in a circumferential direction, obtains the area that described every layer of beacon surrounds.The height submodule of described determination module is used for the space coordinates according to described multiple beacon, calculates the height in the depth direction between every layer of beacon.The volume submodule of described determination module is used for the height between the area that surrounds according to described every layer of beacon and every layer of beacon, obtains the spatial volume of deep water net cage net clothing.The analysis submodule of described determination module is used for described cultivation Surveillance center according to described spatial volume and space coordinates, analyzes described space coordinates and whether there is exception.Exist abnormal if the decision sub-module of described determination module is used for described space coordinates, then judge that described deep water net cage net clothing has breakage, be in abnormal cultivation state, otherwise, then judge that described deep water net cage net clothing is in normal cultivation state.
Fig. 3 is the equipments overall structure schematic diagram that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, as shown in Figure 3, deep water net cage net clothing monitoring device is realized by the hydrolocation mechanism based on ultra-short baseline, fix an oriented array 4 at net cage upper center place and receive and dispatch underwater sound signal, cage netting 1 is installed the beacon 2 for locating, beacon design is responder form, and it receives the framing signal from oriented array 4 and replys.Oriented array 4 connection signal processor 5, signal processor 5 controls the transmitting of the framing signal of oriented array 4, and carries out phase-detection to the echo-signal of beacon 2, determines the orientation of beacon 2 in basic matrix coordinate system, thus positions calculating.The cage netting data of monitoring to be transferred in the mode of radio communication by antenna 6 and to cultivate Surveillance center on the bank, and carry out processing and storing as the critical data of breeding process.
Beacon 2 is fixed on the node of cage netting 1 according to certain space interval.Particularly, according to the actual volume of cage netting, along the circumferential direction evenly lay several beacons for every layer, each net cage lays some layers according to the degree of depth.Because the cage netting at each beacon and its position place is fixed together, beacon moves along with cage netting motion, therefore the orientation of beacon is equivalent to the orientation of coupled cage netting, thus can according to the underwater spatial relation of beacon, the spatial shape of the actual cage netting of true reflection.
Whole deep water net cage net clothing monitoring device comprises radiating portion and subsea beacon 2, utilizes water-proof cable 3 to connect photovoltaic lithium Electricity Federation and closes feeding mechanism 7, realize the power supply to whole deep water net cage net clothing monitoring device.
Fig. 4 is single beacon positioning principle figure that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, as shown in Figure 4, by arranging the location of transmitting-receiving transducer array realization in location to beacon, location transmitting-receiving transducer array adopts triangle battle array, and three array elements are equidistantly arranged in right angle, and spacing is d, array element 1 and 2 forms the x-axis of location coordinate, array element 1 and 3 forms y-axis, and array element 1 is positioned at the origin of coordinates, and the position of beacon in whole coordinate system is set to S (X
a, X
a, X
a), beacon in the location components of three reference axis is
In above formula,
In formula, φ
12with φ
13be respectively the phase difference of the beacon signal that array element 1,2 and array element 1,3 receive, utilize method for measuring phase difference to measure.λ=c/f
0, for receiving and dispatching the wavelength of sound wave.
Fig. 5 is the radiating portion structure chart that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, as shown in Figure 5, location transmitting-receiving transducer array is classified as triangle battle array, net cage upper middle position is fixed on a determining deviation between transducer, transducer array is positioned over below the water surface, for launching acoustic signals downwards.Acoustic signals processor is arranged on monitoring platform, and for controlling transducer array to the transmission of signal and reception, it adopts photovoltaic lithium Electricity Federation to close the energy supply of feeding mechanism realization to deep water net cage net clothing monitoring device.
When being in emission state, transmission and reception switch method of remote signal circuit switches to transmission, the time interval transmitted pulse of signal generator according to setting and the framing signal of pseudorandom m sequence, amplify through power amplifier, and by oriented array, the framing signal after amplification is sent to beacon.When being in accepting state, transmission and reception switch method of remote signal circuit switches to reception, oriented array receives the coding answer signal from beacon, matched filter operation and phase-detection are carried out to the framing signal and this coding answer signal of carrying out automatic signal generator generation, according to time and the phase relation of the coding answer signal of framing signal and different beacon, calculate distance and the dimensional orientation of beacon.The dimensional orientation calculated and range data are transferred to cultivation Surveillance center on the bank by the mode of radio communication, and carry out processing and storing as the critical data of breeding process.
Fig. 6 is the beacon infrastructure figure that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, as shown in Figure 6, cage netting beacon is as the senser element of reaction cage netting motion, itself can carry out the response of acoustic signals, can reply when receiving the framing signal that oriented array sends to this framing signal.Single beacon can realize reception to framing signal and response, the signal transmitting and receiving parts of beacon adopt transmitting-receiving conjunction to put transducer, consider real work scope and the sea situation of beacon in addition, between beacon and oriented array, adopt m sequential coding mode to carry out Signal transmissions.Come reception and the transmission of control signal by single-chip microcomputer, the sample frequency of signal is carried out frequency division to realize obtaining to crystal oscillator frequency by controlling frequency dividing circuit by microprocessor.The working method of beacon adopts interrupt working manner, and transceiver toggle switch conventional operation is in Signal reception mode, and when receiving the framing signal coming from oriented array, through amplification filtering, triggers microprocessor interrupts, and enters interrupt service routine and processes.
Fig. 7 is the beacon workflow diagram that the deep water net cage net clothing based on ultra-short baseline that the embodiment of the present invention provides is monitored, as shown in Figure 7, after entering interrupt service routine, start A/D conversion, the signal of data from oriented array is read from A/D converter, signal according to reading determines whether positioning command, if, then transceiver toggle switch is set to transmission, open D/A conversion, start m sequencer and generate m sequence, analog signal is converted to via D/A converter, then after power amplification and output impedance coupling, finally by by transceiver toggle switch, put transducer by transmitting-receiving conjunction to send, again transceiver toggle switch is set to the receive mode of conventional operation.In addition, for avoiding often changing battery, beacon adopts externally fed, and by the mode of external water-proof cable, the main platform monitored by net cage is powered to it.
In addition, the space coordinates S (X of each beacon obtained according to oriented array
a, X
a, X
a), approximate calculation can go out spatial volume and the form of cage netting, concrete methods of realizing is as follows:
(1) according to the spatial arrangement situation of beacon, be the cylinder tilted by the cage netting shape approximation between net cage different layers beacon;
(2) to the cylinder of every one deck, according to S (X
a, X
a, X
a) carry out interpolation, then integral and calculating goes out area;
(3) every layer of cylindrical height, by Z
i+1-Z
icalculate;
(4) every layer of cylindrical volume carries out product calculating by area and height, is then added by every layer of volume, thus obtains the cumulative volume of net cage, is the actual breeding spaces volume of net cage.
According to the locus of each beacon, and the laying situation of beacon on cage netting, the spatial shape of reduction cage netting, with data and image mode display, accordingly cage netting form and the characteristics of motion are analyzed, judge that whether cage netting is damaged by the change conditions of the abnormal coordinate position of indivedual beacon, thus judge whether net cage is in normal cultivation state.
In sum, the present invention has following technique effect: can by a kind of method providing underwater net cage etting to monitor, not by the restriction of muddy sea-water area, the real-time status of real-time grasp cage netting under actual breeding environment, what calculate cage netting effectively cultivates volume in real time, to make fast reaction in a bursty situation, avoid unnecessary loss.Meanwhile, by the remote transmission of breeding process cage netting data and storage, and the anomaly analysis to cage netting state, play the effect of early warning.In addition, by analyzing the mass data that cage netting form is formed in observation process, the Changing Pattern of research cage netting under hydrodynamism, for design provides cage netting information, thus instructs design and the optimization of net cage.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art of the present technique can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (10)
1., based on the method that the deep water net cage net clothing of ultra-short baseline is monitored, it is characterized in that, comprising:
Receive multiple echo-signal obtained according to the acoustic location signal that oriented array sends from beacon;
According to the acoustic location signal that the multiple echo-signal received and oriented array send, obtain the space coordinates of the beacon corresponding to described multiple each echo-signal respectively;
The spatial volume of deep water net cage net clothing is gone out according to the spatial coordinates calculation of the multiple beacons obtained, and described spatial volume and space coordinates are sent to cultivation Surveillance center, to cultivate Surveillance center determining whether described deep water net cage net clothing is in normal cultivation state according to described spatial volume and space coordinates.
2. method according to claim 1, is characterized in that, the step that described beacon obtains echo-signal according to the acoustic location signal that oriented array sends comprises:
Described beacon identifies the signal from described oriented array received, and judges whether it is acoustic location signal;
If the signal from described oriented array received is acoustic location signal, then generate echo-signal;
Wherein, described echo-signal is m sequential coding answer signal.
3. method according to claim 1, it is characterized in that, the described acoustic location signal sent according to the multiple echo-signal received and oriented array, the step obtaining the space coordinates of the beacon corresponding to described multiple each echo-signal respectively comprises:
Phase-detection is carried out to the acoustic location signal that the multiple echo-signal received and oriented array send, obtains the phase difference of described multiple each echo-signal respectively;
According to the time receiving multiple echo-signal and oriented array and send acoustic location signal, obtain corresponding to the distance of beacon apart from described oriented array of described multiple each echo-signal respectively;
According to the phase difference of the described multiple each echo-signal obtained and the beacon of the described each echo-signal of correspondence apart from the distance of described oriented array, calculate the space coordinates of the beacon corresponding to described multiple each echo-signal.
4. the method according to claim 1 or 3, is characterized in that, the step that the spatial coordinates calculation of described multiple beacons according to obtaining goes out the spatial volume of deep water net cage net clothing comprises:
The space coordinates of described multiple beacon every layer of beacon is in a circumferential direction calculated, obtains the area that described every layer of beacon surrounds;
According to the space coordinates of described multiple beacon, calculate the height in the depth direction between every layer of beacon;
Height between the area surrounded according to described every layer of beacon and every layer of beacon, obtains the spatial volume of deep water net cage net clothing.
5. method according to claim 1, is characterized in that, according to described spatial volume and space coordinates, described cultivation Surveillance center determines that the step whether described deep water net cage net clothing is in normal cultivation state comprises:
Described cultivation Surveillance center, according to described spatial volume and space coordinates, analyzes described space coordinates and whether there is exception;
If described space coordinates exists abnormal, then judge that described deep water net cage net clothing has breakage, be in abnormal cultivation state, otherwise, then judge that described deep water net cage net clothing is in normal cultivation state.
6., based on the device that the deep water net cage net clothing of ultra-short baseline is monitored, it is characterized in that, comprising:
Receiver module, for receiving multiple echo-signal obtained according to the acoustic location signal that oriented array sends from beacon;
Index module, for the acoustic location signal sent according to the multiple echo-signal received and oriented array, obtains the space coordinates of the beacon corresponding to described multiple each echo-signal respectively;
Determination module, for going out the spatial volume of deep water net cage net clothing according to the spatial coordinates calculation of the multiple beacons obtained, and described spatial volume and space coordinates are sent to cultivation Surveillance center, to cultivate Surveillance center determining whether described deep water net cage net clothing is in normal cultivation state according to described spatial volume and space coordinates.
7. device according to claim 6, is characterized in that, described receiver module comprises further:
Recognin module, identifies the signal from described oriented array received for described beacon, judges whether it is acoustic location signal;
Generate submodule, if be acoustic location signal for the signal from described oriented array received, then generate echo-signal.
8. device according to claim 6, is characterized in that, described index module comprises further:
Phason module, carries out phase-detection for the acoustic location signal sent the multiple echo-signal received and oriented array, obtains the phase difference of described multiple each echo-signal respectively;
Chronon module, for according to the time receiving multiple echo-signal and oriented array and send acoustic location signal, obtains corresponding to the distance of beacon apart from described oriented array of described multiple each echo-signal respectively;
Calculating sub module, the phase difference of described multiple each echo-signals obtained for basis and the beacon of the described each echo-signal of correspondence, apart from the distance of described oriented array, calculate the space coordinates of the beacon corresponding to described multiple each echo-signal.
9. device according to claim 6, is characterized in that, described determination module comprises further:
Area submodule, for calculating the space coordinates of described multiple beacon every layer of beacon in a circumferential direction, obtains the area that described every layer of beacon surrounds;
Height submodule, for the space coordinates according to described multiple beacon, calculates the height in the depth direction between every layer of beacon;
Volume submodule, for the height between the area that surrounds according to described every layer of beacon and every layer of beacon, obtains the spatial volume of deep water net cage net clothing.
10. device according to claim 6, is characterized in that, described determination module further comprises:
Analyze submodule, for described cultivation Surveillance center according to described spatial volume and space coordinates, analyze described space coordinates and whether there is exception;
Decision sub-module, if exist for described space coordinates abnormal, then judges that described deep water net cage net clothing has breakage, is in abnormal cultivation state, otherwise, then judge that described deep water net cage net clothing is in normal cultivation state.
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| CN111612351A (en) * | 2020-05-22 | 2020-09-01 | 大连理工大学 | Method for assessing damage risk of marine aquaculture net cage facilities |
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| CN203587800U (en) * | 2013-09-23 | 2014-05-07 | 北京农业信息技术研究中心 | Fish farming feeding control system |
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| CN2582373Y (en) * | 2002-11-14 | 2003-10-29 | 浙江大学 | Deepwater net-box with net damage alarm function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111612351A (en) * | 2020-05-22 | 2020-09-01 | 大连理工大学 | Method for assessing damage risk of marine aquaculture net cage facilities |
| CN111612351B (en) * | 2020-05-22 | 2023-04-18 | 大连理工大学 | Method for assessing damage risk of marine aquaculture net cage facilities |
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