CN109997806A - A kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor - Google Patents
A kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor Download PDFInfo
- Publication number
- CN109997806A CN109997806A CN201910378977.XA CN201910378977A CN109997806A CN 109997806 A CN109997806 A CN 109997806A CN 201910378977 A CN201910378977 A CN 201910378977A CN 109997806 A CN109997806 A CN 109997806A
- Authority
- CN
- China
- Prior art keywords
- trawl
- cod
- mesh
- catches
- probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 6
- 244000309464 bull Species 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000029052 metamorphosis Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
- A01K73/10—Determining the quantity of the catch, e.g. by the pull or drag on the lines
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor, comprising: Cod-ends of Trawl, several expansion rings being arranged on Cod-ends of Trawl and several being mounted on expansion ring adjust rope；Several described expansion rings are spaced apart along the Cod-ends of Trawl axis direction, several described adjusting rope end portions on same expansion ring are pooled on a probe；Mesh sensor is installed, the mesh sensor is able to detect mesh opening angle on the Cod-ends of Trawl mesh；By pulling drawstring, the probe for adjusting rope is mobile to Cod-ends of Trawl entrance extreme direction, the Cod-ends of Trawl mesh tightening.
Description
Technical field
The present invention relates to a kind of catches monitoring weight device more particularly to a kind of Cod-ends of Trawl based on mesh sensor
Catches monitoring weight device.
Background technique
Trawlnet is to use fishing boat drag operation, and fished species is forced to enter the fishing gear of net capsule.Trawlnet have fished species extensively,
The advantages that production operation is flexible, catching rate is high.The yield of trawlnet occupies first place all the year round in China's marine capture production.Exactly
Since this efficient fishing of trawlnet causes huge pressure to marine fishery resources.With declining for China coastal seas fishery resources
It moves back, reinforces the science control of bull trawl in fisheries management by the great attention of relevant departments.From technological means trawlnet net
The selectivity of capsule is to manage one of the strong behave of trawlnet.Because only that improving the selectivity of Cod-ends of Trawl, trawl fishing pair
The negative effect of fishery resources recruitment stock just can be reduced accordingly.The selectivity of Cod-ends of Trawl is influenced by many factors.Wherein,
Catches weight is an important influence factor.Because catches weight passes through the angle of its opening of the stressing influence of mesh.
The real-time measurement of bull trawl catches weight has important directive function for the selectivity for promoting net capsule.In addition, catches weight
Amount also can be used as captain and decide whether to have carried out the index value of net operation.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of Cod-ends of Trawl catches weight based on mesh sensor
Monitoring device.
In order to achieve the above objectives, a kind of the technical solution adopted by the present invention are as follows: Cod-ends of Trawl fishing based on mesh sensor
Obtain object monitoring weight device, comprising: Cod-ends of Trawl, several expansion rings being arranged on Cod-ends of Trawl and be mounted on expansion ring
On several adjust rope；Several described expansion rings are spaced apart along the Cod-ends of Trawl axis direction, on same expansion ring
Several described adjusting rope end portions be pooled on a probe；Mesh sensor, the mesh are installed on the trawlnet mesh
Sensor is able to detect mesh opening angle；
The probe is through drawstring is connected with, and by pulling drawstring, the probe for adjusting rope end portion enters to Cod-ends of Trawl
Mouth extreme direction is mobile, the trawlnet mesh tightening.
In a preferred embodiment of the present invention, the data of the mesh sensor and the probe detection are transmitted to calculating
Machine.
In a preferred embodiment of the present invention, the probe is put down where being able to detect the center probe to the expansion ring
The distance between face central point.
In a preferred embodiment of the present invention, the mesh sensor includes that the telescopic rod of arranged crosswise and being mounted on is stretched
The inductor at contracting bar both ends.
In a preferred embodiment of the present invention, the junction of two telescopic rods of arranged crosswise is connected by inclinometer.
In a preferred embodiment of the present invention, the inclinometer is able to detect the angle between two telescopic rods.
In a preferred embodiment of the present invention, the probe is displacement sensor.
In a preferred embodiment of the present invention, several described mesh sensors are installed circumferentially at and stretch along Cod-ends of Trawl
The corresponding position of ring.
The invention solves the defect existing in the background technology, the present invention have it is following the utility model has the advantages that
(1) in catches weight change, the length ratio of two telescopic rods changes telescopic rod arranged in a crossed manner, telescopic rod
The inductor at both ends detects the stroke of telescopic rod, detects mesh size with catches by mesh state change sensor
Weight generates variation, adjusts rope by pulling, Cod-ends of Trawl local contraction is adjusted, to improve the availability of Cod-ends of Trawl.
(2) inductor is buckle structure, and inductor is connected on the node of mesh, inductor can be made precisely to detect net
The length of telescopic rod between the diagonal line of hole, will not make wherein any one inductor fall off, cause length of telescopic bar detection generate
Error, measurement accuracy are higher.
(3) Cod-ends of Trawl is axially disposed multi-deck extension ring, by the cooperation of adjusting rope and drawstring on expansion ring, makes
Multiple adjusting ropes on same expansion ring and the angle between flexible plane of a loop generate variation, realize that Cod-ends of Trawl is locally tightened,
Improve the selectivity of Cod-ends of Trawl.
(4) when Cod-ends of Trawl rotation twist, the torsion angle of mesh can be measured by the inclinometer of telescopic rod junction
Degree increases this reference quantity of twist, so that mesh not in same plane, is equally capable of detecting when that mesh compares original state
Opposite metamorphosis, to realize measurement of the finishing device to catches weight, measurement accuracy is higher.
(5) when pulling drawstring mobile to Cod-ends of Trawl arrival end, the distance between probe and expansion ring planar central point
Increasing, the size of expansion ring becomes smaller therewith, and the Cod-ends of Trawl near expansion ring is shunk, thus when catches are more, it will not
Catches are made to escape, safety is higher.
(6) data detected with mesh sensor of popping one's head in are transmitted to computer, analyze data by computer, thus
Mesh form and Cod-ends of Trawl tightening state near drawstring tensional state and expansion ring out, according to trawlnet mesh state-detection fishing
Object weight is obtained, when preventing heavier because of catches during fishing, trawlnet mesh becomes larger, and causes the escape of catches.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples；
Fig. 1 is the sectional perspective structure chart of the preferred embodiment of the present invention；
Fig. 2 is the mesh sensor distribution schematic diagram of the preferred embodiment of the present invention；
In figure: 1, traction rope；2, drawstring；3, it pops one's head in；4, rope is adjusted；5, expansion ring；6, bail, 7, Cod-ends of Trawl, 8,
Inclinometer, 9, mesh, 10, telescopic rod, 11, node.
Specific embodiment
Presently in connection with drawings and examples, the present invention is described in further detail, these attached drawings are simplified signal
Figure, the basic structure of the invention will be illustrated schematically only, therefore it only shows the composition relevant to the invention.
As shown in Figs. 1-2, a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor, comprising: trawlnet
Net capsule 7, several expansion rings 5 being arranged on Cod-ends of Trawl 7 and several being mounted on expansion ring 5 adjust 4 composition of rope；
Several expansion rings 5 are spaced apart along 7 axis direction of Cod-ends of Trawl, several on same expansion ring 5 adjust rope 4
End is pooled on a probe 3；Mesh sensor is installed, mesh sensor is able to detect 9 open-angle of mesh on trawlnet mesh 9
Degree；By pulling drawstring 2, through drawstring is connected with, the probe 3 for adjusting 4 ends of rope moves probe to 7 entrance extreme direction of Cod-ends of Trawl
It is dynamic, the tightening of 7 mesh 9 of Cod-ends of Trawl.
The data of 3 detection of mesh sensor and probe are transmitted to computer, data are analyzed by computer, to obtain net
7 tightening state of Cod-ends of Trawl near 9 form of hole and 2 tensional state of drawstring and expansion ring 5, according to 7 mesh of Cod-ends of Trawl, 9 state
Catches weight is detected, when preventing heavier because of catches during fishing, 7 mesh 9 of Cod-ends of Trawl becomes larger, and causes catches
Escape, 7 one end of Cod-ends of Trawl are provided with traction rope 1, and 1 one end of traction rope is provided with bail 6, passes through traction rope 1 and bail 6
Cod-ends of Trawl 7 is fixed on fishing boat tail portion, carries out catches fishing.
Probe 3 is able to detect 3 centers of probe the distance between to 5 place planar central point of expansion ring, and probe 3 passes for displacement
Sensor, Cod-ends of Trawl 7 is axially disposed multi-deck extension ring 5, by the cooperation of adjusting rope 4 and drawstring 2 on expansion ring 5, makes
Angle between 5 plane of multiple adjusting ropes 4 on same expansion ring 5 and expansion ring generates variation, realizes that 7 part of Cod-ends of Trawl is received
Tightly, the selectivity of Cod-ends of Trawl 7 is improved.
Mesh sensor includes the telescopic rod 10 of arranged crosswise and the inductor for being mounted on 10 both ends of telescopic rod, intersects cloth
The junction for two telescopic rods 10 set is connected by inclinometer 8, and inclinometer 8 is able to detect the angle between two telescopic rods 10,
When 7 rotation twist of Cod-ends of Trawl, the windup-degree of mesh 9 can be measured by the inclinometer 8 of 10 junction of telescopic rod, increased and turned round
Turn to spend this reference quantity, so that mesh 9 not in same plane, is equally capable of detecting when that mesh 9 compares the opposite of original state
Metamorphosis, measurement accuracy are higher.
In catches weight change, the length ratio of two telescopic rods 10 changes telescopic rod 10 arranged in a crossed manner, stretches
The inductor at 10 both ends of bar detects the stroke of telescopic rod 10, by 9 state change sensor of mesh detect 9 size of mesh with
Catches weight generate variation, pass through pull adjust rope 4, adjust 7 local contraction of Cod-ends of Trawl, to improve Cod-ends of Trawl 7
Availability.
Inductor is buckle structure, and inductor is connected on the node 11 of mesh 9, inductor can be made precisely to detect net
The length of telescopic rod 10 between 9 diagonal line of hole, will not make wherein any one inductor fall off, cause 10 length detection of telescopic rod
Error is generated, measurement accuracy is higher.
Mesh in Fig. 2 can be diamond shape mesh, and the installation of rectangular only mesh schematic diagram and mesh sensor is shown in figure
It is intended to, does not represent mesh and be only square structure, several mesh sensors are installed circumferentially at and expansion ring 5 along Cod-ends of Trawl 7
Corresponding position, when pulling drawstring 2 mobile to 7 arrival end of Cod-ends of Trawl, between probe 3 and 5 planar central point of expansion ring
Distance increase, the size of expansion ring 5 becomes smaller therewith, shrink the Cod-ends of Trawl 7 near expansion ring 5, thus catches compared with
When more, catches will not be made to escape, safety is higher.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (8)
1. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor, comprising: Cod-ends of Trawl is arranged in trawlnet
Several expansion rings in net capsule and several being mounted on expansion ring adjust rope；It is characterized in that,
Several described expansion rings are spaced apart along the Cod-ends of Trawl axis direction, several described tune on same expansion ring
Section rope end portion is pooled on a probe；
Mesh sensor is installed, the mesh sensor is able to detect mesh opening angle on trawlnet mesh；
The probe is through being connected with drawstring, and by pulling drawstring, the probe for adjusting rope end portion is to Cod-ends of Trawl arrival end
Direction is mobile, the trawlnet mesh tightening.
2. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 1, special
Sign is: the mesh sensor and the data of the probe detection are transmitted to computer.
3. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 1, special
Sign is: the distance between planar central point where the probe is able to detect the center probe to the expansion ring.
4. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 1, special
Sign is: the mesh sensor includes the telescopic rod of arranged crosswise and the inductor for being mounted on telescopic rod both ends.
5. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 4, special
Sign is: the junction of two telescopic rods of arranged crosswise is connected by inclinometer.
6. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 5, special
Sign is: the inclinometer is able to detect the angle between two telescopic rods.
7. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 1, special
Sign is: the probe is displacement sensor.
8. a kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor according to claim 1, special
Sign is: several described mesh sensors are installed circumferentially at position corresponding with expansion ring along Cod-ends of Trawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910378977.XA CN109997806B (en) | 2019-05-08 | 2019-05-08 | Trawl net bag catch weight monitoring device based on mesh sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910378977.XA CN109997806B (en) | 2019-05-08 | 2019-05-08 | Trawl net bag catch weight monitoring device based on mesh sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109997806A true CN109997806A (en) | 2019-07-12 |
| CN109997806B CN109997806B (en) | 2021-09-21 |
Family
ID=67176236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910378977.XA Expired - Fee Related CN109997806B (en) | 2019-05-08 | 2019-05-08 | Trawl net bag catch weight monitoring device based on mesh sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109997806B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111642469A (en) * | 2020-06-04 | 2020-09-11 | 中国水产科学研究院东海水产研究所 | Bag-shaped net and method for acquiring escape rate of caught object from trawl mesh by using same |
| CN111869633A (en) * | 2020-05-25 | 2020-11-03 | 浙江海洋大学 | Rotary multi-net-bag trawl |
| CN112450164A (en) * | 2020-11-03 | 2021-03-09 | 中国水产科学研究院南海水产研究所 | Trawl frame capable of intelligently adjusting hauling net |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048850A (en) * | 1975-10-08 | 1977-09-20 | Simrad A.S. | Mechanism for gauging the catch within a trawl net |
| CN2046109U (en) * | 1989-01-03 | 1989-10-18 | 沈杰宗 | Improved string bag for holding vegetables and fruit |
| CN201911197U (en) * | 2010-12-01 | 2011-08-03 | 高赫阳 | Landing net |
| CN103478089A (en) * | 2013-09-09 | 2014-01-01 | 浙江海洋学院 | Trawl net with a plurality of parallel bag sets and catching method thereby |
| CN207978752U (en) * | 2018-03-09 | 2018-10-19 | 中国科学院烟台海岸带研究所 | A kind of aquatic bioorganism fishing net of ponderable quantity |
| CN208783614U (en) * | 2018-08-17 | 2019-04-26 | 许家豪 | A kind of anti-escape clap net |
-
2019
- 2019-05-08 CN CN201910378977.XA patent/CN109997806B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048850A (en) * | 1975-10-08 | 1977-09-20 | Simrad A.S. | Mechanism for gauging the catch within a trawl net |
| CN2046109U (en) * | 1989-01-03 | 1989-10-18 | 沈杰宗 | Improved string bag for holding vegetables and fruit |
| CN201911197U (en) * | 2010-12-01 | 2011-08-03 | 高赫阳 | Landing net |
| CN103478089A (en) * | 2013-09-09 | 2014-01-01 | 浙江海洋学院 | Trawl net with a plurality of parallel bag sets and catching method thereby |
| CN207978752U (en) * | 2018-03-09 | 2018-10-19 | 中国科学院烟台海岸带研究所 | A kind of aquatic bioorganism fishing net of ponderable quantity |
| CN208783614U (en) * | 2018-08-17 | 2019-04-26 | 许家豪 | A kind of anti-escape clap net |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111869633A (en) * | 2020-05-25 | 2020-11-03 | 浙江海洋大学 | Rotary multi-net-bag trawl |
| CN111642469A (en) * | 2020-06-04 | 2020-09-11 | 中国水产科学研究院东海水产研究所 | Bag-shaped net and method for acquiring escape rate of caught object from trawl mesh by using same |
| CN112450164A (en) * | 2020-11-03 | 2021-03-09 | 中国水产科学研究院南海水产研究所 | Trawl frame capable of intelligently adjusting hauling net |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109997806B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109997806A (en) | A kind of Cod-ends of Trawl catches monitoring weight device based on mesh sensor | |
| CN209102256U (en) | A kind of steel cord tension device for fast detecting | |
| CN110547264A (en) | Automatic fishing device | |
| CN104514161A (en) | Preparation method of mooring rope for anchoring aircraft carrier | |
| CN207209821U (en) | A kind of steady goods device of floating crane | |
| CN109997804B (en) | Trawl net sac mesh opening angle monitoring device | |
| CN215648884U (en) | Adjustable square-mouth trawl | |
| CN109997805A (en) | A kind of Cod-ends of Trawl mesh metamorphosis sensor | |
| CN214222251U (en) | Anti-sliding device for corrugated steel pipe | |
| CN213456418U (en) | Fishing net thread tensile strength detection device | |
| CN215257622U (en) | Rope length adjusting mechanism convenient to operate | |
| CN211091445U (en) | Novel structure for quickly replacing float and quickly increasing and decreasing buoyancy of seven-star fishing line set | |
| CN214502597U (en) | Water resource well position detector | |
| CN106052987A (en) | Device for carrying out active control on marine riser vortex-induced vibration by adopting knocking mode | |
| CN211263812U (en) | Detection mechanism with sensor | |
| CN112462039A (en) | Method for evaluating technological performance of carbon fiber bending application | |
| CN204731199U (en) | A kind of forest textural anomaly seismic wave CT round-looking scan device | |
| CN211716194U (en) | Material fixing device of detection equipment | |
| CN209382239U (en) | A kind of sail based on adjustable height measuring device | |
| CN211153422U (en) | Rotifer collecting net | |
| CN218600796U (en) | Honeycomb carton compressive strength testing arrangement | |
| CN207445579U (en) | The kite of Windward angle can be adjusted | |
| CN208459261U (en) | Screw-in quick positioning mechanism | |
| CN105890857A (en) | Marine riser vortex-induced vibration control lever restraint system | |
| CN221259827U (en) | Concrete crack width change detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |