CN105004357B - A kind of trawler fishery harvesting sensor - Google Patents
A kind of trawler fishery harvesting sensor Download PDFInfo
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- CN105004357B CN105004357B CN201510411498.5A CN201510411498A CN105004357B CN 105004357 B CN105004357 B CN 105004357B CN 201510411498 A CN201510411498 A CN 201510411498A CN 105004357 B CN105004357 B CN 105004357B
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- signal
- fishery harvesting
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- trawler
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Abstract
The invention discloses a kind of trawler fishery harvesting sensor, is made up of sonic transducer, shell, fishery harvesting signal generator, battery and pull switch；Shell is cylinder closed at both ends；Sonic transducer, fishery harvesting signal generator, travel switch, battery are respectively positioned on enclosure；Pull switch is located at housing exterior；Annexation is：Pull switch is used to control the path between battery and fishery harvesting signal generator, and the pull switch is controlled by drawstring and is opened and closed；Sonic transducer is connected to the signal output part of fishery harvesting signal generator, is outwards propagated for the signal that fishery harvesting signal generator exports to be converted into acoustical signal form by electrical signal form.The sensor can perceive fishing output, improve catching rate and economic benefit.
Description
Technical field
The invention belongs to sensor field, is related to a kind of fishery harvesting sensor, particularly trawler fishery harvesting sensor.
Background technology
Fishery harvesting sensor is the important component of netsonde, the main fishing output perceived in Cod-ends of Trawl, in trawlnet net
When diverse location installs the sensor on capsule, different catch can be perceived.When catches are attached to fishery harvesting sensor in net capsule
During installation site, sensor-triggered simultaneously launches fishery harvesting signal.
At present, the unassembled fishery harvesting sensor of most of the country trawler, can not be caught during fishing in pre- Hownet
Fish amount.Therefore, it is less and receive net often to go out fishing output in existing network, influences fishery harvesting in catching rate and benefit, or Cod-ends of Trawl
Thing is full but does not receive net in time, bursts fishing net, causes economic loss.
According to document disclosed in the country and patent, fishery harvesting sensor related data document is had no at present.
The content of the invention
In view of this, the invention provides a kind of trawler fishery harvesting sensor, fishing output can be perceived, improves fishing
Efficiency and economic benefit.
In order to achieve the above object, the technical scheme is that：The sensor is by sonic transducer, shell, fishery harvesting signal
Generator, battery and pull switch composition；
Shell is cylinder closed at both ends；Sonic transducer, fishery harvesting signal generator, travel switch, battery are respectively positioned on shell
It is internal；Pull switch is located at housing exterior；
Annexation is：Pull switch is used to control the path between battery and fishery harvesting signal generator, and the pulling force is opened
Close to be controlled by drawstring and be opened and closed；Sonic transducer is connected to the signal output part of fishery harvesting signal generator, for fishery harvesting signal to be occurred
The signal of device output is converted to acoustical signal form by electrical signal form and outwards propagated.
Further, pull switch by travel switch, unit housings, block, drawstring, pull bar, spring, the first magnetic pole and
Second magnetic pole forms.
Unit housings are the cavity of one end open, and block, drawstring, pull bar, spring and the first magnetic pole are respectively positioned on unit housings
It is internal.
Travel switch is located on one end face A of enclosure, and the first magnetic pole is fixed on end face A outside and and stroke
The external contact of switch is in contact；Unit housings cavity bottom is connected with the A external stabilities of shell end face, and cavity bottom places gear
Block, spring is between block and unit housings openend；The second magnetic pole is fixedly mounted in block center；Block is stretched into pull bar one end
Middle fixation and end face contact connection with magnetic pole, and the other end of pull bar stretches out block, connection stay cord, and drawstring is opened by unit housings
Mouth end is stretched out, and is connected in net capsule, the first magnetic pole and the second magnetic pole heteropole, keeps state of repelling each other；The common port of travel switch connects
Connect anode output, the power input of normally closed termination fishery harvesting signal generator.
Further, there is the charge port of battery on shell, and sealed using closing cock.
Further, material used in shell is 316L stainless steels, water pressure resistance value 10.5MPa.
Further, sonic transducer uses piezoelectric ceramics longitudinal vibration formula sonic transducer, working frequency 40kHz-46kHz, hair
Radio presses response level 137dB, horizontal directivity 133o, vertical directivity 120o, water pressure resistance value 10.5MPa.
Further, the triggering weight range of travel switch is 20N-29N.
Further, fishery harvesting signal generator is made up of the power-switching circuit and signal generating circuit being sequentially connected with.
The normal-closed end of the input connection travel switch of power-switching circuit, power-switching circuit are used for provide battery
Power convert is the power supply needed for signal generating circuit.
Signal generating circuit is used for generation, driving, amplification and the energy storage for carrying out encoded signal；Encoded signal should for mark
The unique encodings of fishery harvesting sensor.
Further, signal generating circuit is by circuit occurs for the control circuit, the encoded signal that are sequentially connected with, signal drives electricity
Road, power amplification circuit, transformer and storage capacitor composition；Control circuit uses MSP430 single-chip microcomputers, is encoded for controlling
Signal generating circuit produces encoded signal；Encoded signal occurs circuit and uses DDS integrated chips, by the work shape for controlling DDS
State register, frequency register, phase register produce encoded signal；Signal drive circuit is used for the voltage for improving encoded signal
So as to strengthen signal driving force；Power amplification circuit is push-pull type power amplification circuit, for carrying out power to encoded signal
Amplification；Storage capacitor in parallel between the primary coil and ground of transformer, for the transmitting energy storage for encoded signal；Transformer it is defeated
Go out the output end that end is signal generating circuit.
Further, the coded system of encoded signal is：The encoded signal includes：Frame head, M signal frame and postamble；
Frame head is width 4ms, frequency f0CW pulse signals；Postamble is width 4ms, frequency f1CW pulse signals；M signal frame is
Sensor encodes；Sensor coding carries out binary coding according to sorting sensor；The wherein time of frame head and M signal frame
At intervals of fixed value T0, the time interval T of M signal frame and postamble1For (t+n τ) ms, wherein t is initial value, and τ is stepping-in amount,
N is sorting sensor.
Beneficial effect：
1st, fishery harvesting sensor provided by the present invention, its circuit is simple, small volume, low in energy consumption, by the important position of net capsule
Put place and lay this sensor, perception fishing output can be reached, improve the effect of catching rate and economic benefit.
2nd, carry out power supply for disconnected using travel switch in the present invention, and with magnetic pole it is contactless switched beat
Open and cut off, this non-contacting mode can isolate important circuit element with seawater, avoid the corrosion of critical elements, carry
High service life.
3rd, the signal circuit in the present invention, it is distant by transmission range of the power amplifier design signal in water,
Hundreds of meters can be reached, realize the real-time delivery between fishery harvesting sensor signal and fishing boat.
4th, the Signal coding mode employed in the present invention is simple, and stable, strong antijamming capability is showed in transmittance process.
Brief description of the drawings
Fig. 1 is the structure chart of trawler fishery harvesting sensor；
Fig. 2 is the theory diagram of fishery harvesting sensor.
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Embodiment 1, as shown in figure 1, the sensor by sonic transducer 1, shell 2, pull switch 3, fishery harvesting signal generator 4
And battery 5 forms.
Shell 2 is cylinder closed at both ends；The agent structure of shell 2 is cylindrical shape, and material is 316L stainless steels, water pressure resistance value
There is installation retainer ring 10.5MPa, shell corner.Sonic transducer 1, fishery harvesting signal generator 4 and battery 5 are respectively positioned in shell 2
Portion, pull switch are located at outside shell 2.
Pull switch is used to control the path between battery 5 and fishery harvesting signal generator 4, and the pull switch is by drawstring control
System opening and closing；Sonic transducer is connected to the signal output part of fishery harvesting signal generator 4, for export fishery harvesting signal generator 4
Signal is converted to acoustical signal form by electrical signal form and outwards propagated.
Embodiment 2, based on above-described embodiment 1, pull switch 3 is by pulling force acquiring unit, the first magnetic pole and travel switch
Composition；Wherein travel switch is located inside shell 2, and the first magnetic pole is fixed on outer outside the end face of shell 2 and with travel switch
Portion contact is in contact；The triggering weight range of travel switch is 20N-29N.
Pulling force capturing unit is made up of unit housings, block, the second magnetic pole, drawstring, pull bar and spring, wherein unit housings
For the cavity of one end open, its cavity bottom is fixedly connected with shell 2, and unit housings cavity bottom places block, and spring is located at
Between block and unit housings openend；The second magnetic pole is fixedly mounted in block center；Pull bar one end is stretched into fixed in block and held
Face contacts connection with the second magnetic pole, and the other end of pull bar stretches out block, connection stay cord, and drawstring is stretched by the openend of unit housings
Go out, be connected in net capsule.
First magnetic pole and the installation of the second magnetic pole heteropole, keep the two in state of repelling each other.So when having been captured in net capsule
When, drawstring pulls pull bar, to drive block compression spring so that distance increase, repulsive force between the second magnetic pole and the first magnetic pole
Reduce, then the first magnetic pole and travel switch contact are remote, thus start travel switch.
The common port connection anode output of travel switch, the input of normally closed termination power-switching circuit；Work as stroke
Switch starts, and battery can be powered by power-switching circuit for signal generating circuit.
In the present embodiment, fishery harvesting signal generator 4 is made up of the power-switching circuit and signal generating circuit being sequentially connected with；
The normal-closed end of the input connection travel switch of power-switching circuit, power-switching circuit are used for the Power convert for providing battery
For the power supply needed for signal generating circuit；Signal generating circuit be used to carrying out the generation of encoded signal, driving, amplification and
Energy storage；Encoded signal is to identify the unique encodings of the fishery harvesting sensor；Sonic transducer is connected to the output end of signal generating circuit,
Outwards propagated for encoded signal to be converted into acoustical signal form by electrical signal form.
Battery is rechargeable lithium ion batteries in the present embodiment, rated output voltage 16V, rated cell capacity 1.9AH, outside
Shape size Φ 60mm × 60mm.In order to be charged to battery, shell 2 is provided with the charge port of battery 5, and using closing
Fill in capable sealing.
In order to adapt to underwater operation, sonic transducer 1 uses piezoelectric ceramics longitudinal vibration formula sonic transducer, working frequency 40kHz-
46kHz, transmitting voltage response level 137dB, horizontal directivity 133o, vertical directivity 120o, water pressure resistance value 10.5MPa.
Signal generating circuit in the present embodiment as shown in Fig. 2 signal generating circuit by be sequentially connected with control circuit, compile
Circuit, signal drive circuit, power amplification circuit, transformer and storage capacitor composition occur for code signal.
Control circuit uses MSP430 single-chip microcomputers, and encoded signal is produced for controlling encoded signal that circuit occurs.
Encoded signal occurs circuit and uses DDS integrated chips, by controlling DDS working condition register, frequency to deposit
Device, phase register produce encoded signal.
Signal drive circuit is used to improve the voltage of encoded signal so as to strengthen signal driving force.
Power amplification circuit is push-pull type power amplification circuit, for carrying out power amplification to encoded signal.
Storage capacitor in parallel between the primary coil and ground of transformer, for the transmitting energy storage for encoded signal；Transformer
Output end be signal generating circuit output end.
In order to provide a kind of coding method of stabilization, the coded system of encoded signal is in the present embodiment：
The encoded signal includes：Frame head, M signal frame and postamble；Frame head is width 4ms, frequency f0CW pulses letter
Number；Postamble is width 4ms, frequency f1CW pulse signals；M signal frame encodes for sensor；
Sensor coding carries out binary coding according to sorting sensor；
The time interval of wherein frame head and M signal frame is fixed value T0, be arranged on 200ms or so, M signal frame with
The time interval T of postamble1For t+n τ ms, wherein t is initial value, is arranged between 100~150ms, τ is stepping-in amount, is arranged on
100ms or so, n are sorting sensor.
To sum up, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (9)
1. a kind of trawler fishery harvesting sensor, it is characterised in that occurred by sonic transducer (1), shell (2), fishery harvesting signal
Device (4), battery (5) and pull switch composition；
The shell (2) is cylinder closed at both ends；The sonic transducer (1), fishery harvesting signal generator (4), battery (5) equal position
It is internal in the shell (2)；It is outside that the pull switch is located at the shell (2)；
Annexation is：The pull switch is used to control the path between battery (5) and fishery harvesting signal generator (4), and should
Pull switch is controlled by drawstring and is opened and closed；The sonic transducer is connected to the signal output part of the fishery harvesting signal generator (4), uses
Outwards propagated in the signal that fishery harvesting signal generator (4) exports is converted into acoustical signal form by electrical signal form.
2. a kind of trawler fishery harvesting sensor as claimed in claim 1, it is characterised in that the pull switch is by stroke
Switch, unit housings, block, drawstring, pull bar, spring, the first magnetic pole and the second magnetic pole composition；
The unit housings are the cavity of one end open, and block, drawstring, pull bar, spring and the first magnetic pole are respectively positioned on the unit
Enclosure interior；
The travel switch is located on one end face A of enclosure, first magnetic pole be fixed on end face A outside and with
The external contact of travel switch is in contact；The unit housings cavity bottom is connected with the shell (2) end face A external stabilities,
Cavity bottom places block, and spring is between block and unit housings openend；The second magnetic pole is fixedly mounted in block center；Draw
Bar one end stretches into fixed and end face in block and connection is contacted with magnetic pole, and the other end of pull bar stretches out block, connection stay cord, drawstring
Stretched out, be connected in net capsule by the openend of unit housings, first magnetic pole and the second magnetic pole heteropole, keep state of repelling each other；
The common port connection anode output of the travel switch, the power input of normally closed termination fishery harvesting signal generator (4).
3. a kind of trawler fishery harvesting sensor as claimed in claim 1 or 2, it is characterised in that have on the shell (2)
There is the charge port of the battery (5), and sealed using closing cock.
4. a kind of trawler fishery harvesting sensor as claimed in claim 1 or 2, it is characterised in that the shell (2) is used
Material is 316L stainless steels, water pressure resistance value 10.5MPa.
A kind of 5. trawler fishery harvesting sensor as claimed in claim 1 or 2, it is characterised in that the sonic transducer (1)
Using piezoelectric ceramics longitudinal vibration formula sonic transducer, working frequency 40kHz-46kHz, transmitting voltage response level 137dB, it is horizontally directed to
133 ° of property, 120 ° of vertical directivity, water pressure resistance value 10.5MPa.
A kind of 6. trawler fishery harvesting sensor as claimed in claim 2, it is characterised in that the triggering of the travel switch
Weight range is 20N-29N.
A kind of 7. trawler fishery harvesting sensor as claimed in claim 2, it is characterised in that the fishery harvesting signal generator
(4) it is made up of the power-switching circuit and signal generating circuit that are sequentially connected with；
The input of the power-switching circuit connects the normal-closed end of the travel switch, and the power-switching circuit is used for electricity
Power supply of the Power convert that pond provides needed for signal generating circuit；
The signal generating circuit is used for generation, driving, amplification and the energy storage for carrying out encoded signal；The encoded signal is mark
Know the unique encodings of the fishery harvesting sensor.
A kind of 8. trawler fishery harvesting sensor as claimed in claim 7, it is characterised in that the signal generating circuit by
Circuit, signal drive circuit, power amplification circuit, transformer and energy storage occur for control circuit, the encoded signal being sequentially connected with
Electric capacity forms；
The control circuit uses MSP430 single-chip microcomputers, and encoded signal is produced for controlling the encoded signal that circuit occurs；
The encoded signal occurs circuit and uses DDS integrated chips, by control DDS integrated chips working condition register,
Frequency register and phase register produce encoded signal；
The signal drive circuit is used to improve the voltage of the encoded signal so as to strengthen signal driving force；
The power amplification circuit is push-pull type power amplification circuit, for carrying out power amplification to the encoded signal；
Storage capacitor in parallel between the primary coil and ground of the transformer, for the transmitting energy storage for encoded signal；Transformer
Output end be the signal generating circuit output end.
A kind of 9. trawler fishery harvesting sensor as claimed in claim 8, it is characterised in that the coding of the encoded signal
Mode is：
The encoded signal includes：Frame head, M signal frame and postamble；The frame head is width 4ms, frequency f0CW pulses letter
Number；The postamble is width 4ms, frequency f1CW pulse signals；The M signal frame encodes for sensor；
The sensor coding carries out binary coding according to sorting sensor；
The time interval of wherein frame head and M signal frame is fixed value T0, the time interval T of M signal frame and postamble1For (t+
N τ) ms, wherein t be initial value, τ is stepping-in amount, and n is sorting sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510411498.5A CN105004357B (en) | 2015-07-14 | 2015-07-14 | A kind of trawler fishery harvesting sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510411498.5A CN105004357B (en) | 2015-07-14 | 2015-07-14 | A kind of trawler fishery harvesting sensor |
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| Publication Number | Publication Date |
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| CN105004357A CN105004357A (en) | 2015-10-28 |
| CN105004357B true CN105004357B (en) | 2017-11-21 |
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| CN201510411498.5A Expired - Fee Related CN105004357B (en) | 2015-07-14 | 2015-07-14 | A kind of trawler fishery harvesting sensor |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204854778U (en) * | 2015-07-14 | 2015-12-09 | 中国船舶重工集团公司第七一〇研究所 | Fishery harvesting sensor for trawler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8623398D0 (en) * | 1986-09-29 | 1986-11-05 | Salubre Investments | Fishing trawl |
| JP3840467B2 (en) * | 2003-07-31 | 2006-11-01 | ニチモウ株式会社 | Auto trawl system |
| CN102509544A (en) * | 2011-10-28 | 2012-06-20 | 中国船舶重工集团公司第七一○研究所 | Integrated deepwater underwater transducer array |
| CN103901434B (en) * | 2014-03-10 | 2016-04-20 | 宁波成电泰克电子信息技术发展有限公司 | A kind of wireless fish deteclor |
| CN203981880U (en) * | 2014-07-23 | 2014-12-03 | 南京宁禄科技有限公司 | A kind of depth measurement fish finding system that adopts mobile terminal to show |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204854778U (en) * | 2015-07-14 | 2015-12-09 | 中国船舶重工集团公司第七一〇研究所 | Fishery harvesting sensor for trawler |
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Granted publication date: 20171121 Termination date: 20190714 |