CN102706332B - Centimeter-sized drifting buoy device of satellite navigation system - Google Patents
Centimeter-sized drifting buoy device of satellite navigation system Download PDFInfo
- Publication number
- CN102706332B CN102706332B CN201210200638.0A CN201210200638A CN102706332B CN 102706332 B CN102706332 B CN 102706332B CN 201210200638 A CN201210200638 A CN 201210200638A CN 102706332 B CN102706332 B CN 102706332B
- Authority
- CN
- China
- Prior art keywords
- scaffold
- beidou receiver
- drifting buoy
- big
- microprocessor
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention discloses a centimeter-sized drifting buoy device of a satellite navigation system, and belongs to the technical field of monitoring of oceans. According to an integral structure, the device comprises a Big Dipper receiver and a drifting buoy bracket, wherein the Big Dipper receiver is fixedly provided with a Big Dipper satellite antenna, a communication module, a temperature sensor, a humidity sensor and an air pressure gauge; the drifting buoy bracket comprises a central supporting column, an upper scaffold, a lower scaffold, a serial connecting rod, a floating ball, anticorrosion canvas and a load; the upper scaffold and the lower scaffold are fixedly arranged on the upper part and the lower part of the central supporting column respectively; the upper scaffold is fixedly provided with the serial connecting rod; the serial connecting rod is connected in series with the floating ball; one side of the anticorrosion canvas is hung on the upper scaffold, and the other side of the anticorrosion canvas is hung on the lower scaffold; and the load is fixedly arranged at the lower end of the central supporting column. The device has a simple structure and long service life, is light, handy, high in performance and low in production cost and can reach a centimeter-sized accuracy positioning standard.
Description
Technical field:
The invention belongs to marine monitoring technology field, relate to a kind of drifting buoy device, relate in particular to a kind of centimetre-sized drifting buoy device of satellite navigation system.
Background technology:
Ocean accounts for 70.8% of whole earth surface area, is the important space of human survival and development, its metal that is richly stored with, the energy and living resources, due to economic fast development, land resource is day by day deficient, human society is faced with a series of difficult problems such as population expansion, shortage of resources and ecological deterioration, and therefore ocean becomes important replaceable resources place, land of 21 century, and developing ocean is the important channel that solves these a series of difficult problems, marine climate is changeable, in order to develop better ocean, people set up oceanic observation and measure the Hydrometeorological Factors such as wave height, ocean current, Hai Wen, tidal level, wind speed and air pressure on coastal and island, these data not only can instruct the mankind to develop better ocean, and at sea engineering construction and scientific research of seas field play an important role, but the oceanographic data that coastal and research station, island observes can only reflect the situation in marine site, He Lin island, coastal waters, but cannot monitor guidance to oceangoing voyage, in ocean, setting up drifting buoy is the effective ways that address this problem, oceanographic buoy technology is nineteen sixties used and grown up by some ocean developed countries, ocean drifting buoy is the important technology equipment of marine environment investigation, have under severe marine environment condition, unmanned ground is long-term, continuously, synchronously, automatically to marine hydrology, the feature that meteorological all key elements are carried out Comprehensive monitoring, it is oceanographic observation bank station, research ship and investigation aircraft are spatially expanded with temporal extension, it is the important means of offshore monitoring, there is the effect that other investigation methods cannot replace, its importance is more and more subject to the attention of each maritime state of the world.
Existing drifting buoy mostly complex structure, cost of manufacture is high and degree of accuracy is inadequate; The present invention improves existing drifting buoy, simple in structure light and handy, volume is little, the life-span is long, performance is good, production cost is low, and adopts location and the ICT (information and communication technology) of No. two navigational system of the Big Dipper, can reach centimetre-sized precision location.
Summary of the invention:
The object of the invention is to overcome drifting buoy complex structure in prior art, cost of manufacture is high and degree of accuracy is inadequate defect, the centimetre-sized drifting buoy device of a kind of satellite navigation system of design is provided.
To achieve these goals, one-piece construction of the present invention comprises Beidou receiver and drifting buoy support, and Beidou receiver is fixedly mounted on the upper end of drifting buoy support; Beidou receiver comprises Beidou receiver shell and Beidou receiver internal work platform, Beidou receiver shell is wrapped in Beidou receiver internal work platform makes Beidou receiver internal work platform not destroyed by external environment condition, Beidou receiver shell is that the known features such as square, rectangular parallelepiped, cone or spheroid and outside surface are provided with solar cell and are used for to Beidou receiver internal work platform power, and Beidou receiver internal work platform comprises big-dipper satellite antenna, communication module, temperature sensor, humidity sensor and barometer; Drifting buoy support comprises centre strut, top scaffold, bottom scaffold, series winding bar, ball float, corrosion-resistant canvas and load-carrying, top scaffold and bottom scaffold are fixedly mounted on respectively the upper and lower of centre strut, series winding bar is fixedly mounted on the scaffold of top, when ball float is fixedly mounted on series winding and makes drifting buoy in water on bar, Beidou receiver is on the water surface, one side of corrosion-resistant canvas is hung on opposite side on the scaffold of top and is hung on the scaffold of bottom, and load-carrying is fixedly mounted on centre strut bottom.
The preferred Beidou receiver of the present invention comprises Beidou receiver shell and Beidou receiver internal work platform, Beidou receiver shell adopts corrosion-resistant, waterproof, glass-reinforced plastic material firm and impact resistance to make the sphere structure that square, rectangular parallelepiped, cone maybe can be divided into episphere and lower semisphere, and solar cell is arranged on the outside surface of episphere or in the top side face of square, rectangular parallelepiped and cone; In communication module centered by microprocessor, be provided with the RAM storer of the quick 256KB byte of moving of guarantee program and preserve the FLASH storer of the 8MB byte of the Monitoring Data bags such as temperature, humidity, air pressure at microprocessor internal, the logical circuit that microprocessor internal is also provided with communication board and can carries out internal logic programming, microprocessor uses two universal asynchronous serial interfaces as big-dipper satellite communication interface and drifting buoy communication interface; The communication board of microprocessor completes the work such as satellite time transfer, geo-location, bidirectional data transfers by big-dipper satellite communication interface control Beidou receiver, receive by drifting buoy communication interface the Monitoring Data bag that temperature sensor, humidity sensor and barometer gather, and monitoring temperature processor, humidity processor and barometrical duty, then by big-dipper satellite antenna, the Monitoring Data bag of temperature sensor, humidity sensor and barometer collection is sent to floor control center; The communication board of microprocessor is provided with drifting buoy check and correction clock and grasps in real time the duty of Beidou receiver.
The preferred big-dipper satellite antenna of the present invention is square patch form, the two-layer paster that its radiating element receives B1 and two frequency ranges of B3 by correspondence is formed by stacking, on two-layer paster, be respectively arranged with and be six holes that regular hexagon is arranged, also being provided with six band cap capacitive probe adopts back of the body feedback mode to carry out feed by six holes through lower floor's paster and to upper strata paster B1 frequency range and lower laminating B3 frequency range, because adopting regular hexagon to arrange, probe forms Multipoint Uniform feed, feeding point signal phase is according to differing successively clockwise 60 degree, make the radiating element of big-dipper satellite antenna in working band, there is good impedance bandwidth and axial ratio characteristic, phase center is more stable simultaneously, the radiating element of big-dipper satellite antenna adopts the circuit form of three grades of amplifications, and input and output matching network is set, for the multiple signals that make to receive from radiation patch are coupled into a road signal, finally be input to Beidou receiver by an interface, six feeding point signals of B1 frequency range are divided into two parts and amplify, first four feeding point signals are coupled into two paths of signals by 3dB the first electric bridge and 3dB the second electric bridge respectively, being transferred to 3dB the 4th electric bridge through the first microstrip line and the second microstrip line respectively amplifies and is coupled into a road signal, two other feeding point signal is coupled into a road signal by 3dB the 3rd electric bridge, be transferred to 3dB the 5th electric bridge and carry out second level amplification through the 3rd microstrip line, composite signal after amplify the first order and the second level is transferred to after 3dB the 6th electric bridge carries out third level amplification and is coupled into a road signal through the 4th microstrip line and the 5th microstrip line respectively, then be input to Beidou receiver by an interface, big-dipper satellite antenna amplifies through six feeding point feeds and three grades of low noise amplifiers of radiating element, can effectively eliminate the noise error of its phase center offset error and drifting buoy, thereby effectively improve the positioning precision of drifting buoy.
The preferred drifting buoy support of the present invention, its centre strut adopts pvc pipe material to make, top scaffold and bottom scaffold form by two thin bars that are decussate texture, the thin bar correspondence of the thin bar of top scaffold and bottom scaffold is parallel, four ends of top scaffold thin bar are installed with respectively series winding bar, each series winding bar is connected with respectively two ball floats, and when the size of ball float determines and can make drifting buoy drift about in water according to the general assembly (TW) of drifting buoy, Beidou receiver is positioned on the water surface.
The present invention compared with prior art simple in structure light and handy, volume is little, the life-span is long, performance is good, production cost is low, and adopts location and the ICT (information and communication technology) of No. two navigational system of the Big Dipper, can reach centimetre-sized precision location.
Brief description of the drawings:
Fig. 1 is one-piece construction principle schematic of the present invention.
Fig. 2 is Beidou receiver inner structure theory diagram of the present invention.
Fig. 3 is Beidou receiver communication module theory diagram of the present invention.
Fig. 4 is the phase shift network theory diagram of big-dipper satellite antenna of the present invention.
Fig. 5 is the vertical view of big-dipper satellite antenna of the present invention.
Fig. 6 is the front elevation of big-dipper satellite antenna of the present invention.
Embodiment:
Below by specific embodiment, also the invention will be further described by reference to the accompanying drawings.
Embodiment 1:
The one-piece construction of the present embodiment comprises Beidou receiver and drifting buoy support, and Beidou receiver is fixedly mounted on the upper end of drifting buoy support, Beidou receiver comprises Beidou receiver shell 1 and Beidou receiver internal work platform 8, that Beidou receiver shell 1 adopts is corrosion-resistant, waterproof, glass-reinforced plastic material firm and impact resistance are made, and being wrapped in Beidou receiver internal work platform 8 makes Beidou receiver internal work platform 8 not destroyed by external environment condition, Beidou receiver shell 1 is for sphere structure and be divided into episphere and lower semisphere, the outside surface of episphere is provided with solar cell and is used for powering to Beidou receiver internal work platform 8, and Beidou receiver shell 1 adopts sphere structure to ensure that solar cell can gather sunshine and expand the daylighting area of solar cell from all directions, Beidou receiver internal work platform 8 is installed with big-dipper satellite antenna, communication module, temperature sensor, humidity sensor and barometer, big-dipper satellite antenna is used for receiving and transmission Big Dipper satellite signal, temperature sensor is used for collecting temperature data, humidity sensor is used for gathering humidity data, and barometer is used for gathering barometric information, in communication module centered by microprocessor, be provided with the RAM storer of the quick 256KB byte of moving of guarantee program and preserve the FLASH storer of the 8MB byte of the Monitoring Data bags such as temperature, humidity, air pressure at microprocessor internal, the logical circuit that microprocessor internal is also provided with communication board and can carries out internal logic programming, microprocessor uses two universal asynchronous serial interfaces as big-dipper satellite communication interface and drifting buoy communication interface, the communication board of microprocessor completes the work such as satellite time transfer, geo-location, bidirectional data transfers by big-dipper satellite communication interface control Beidou receiver, receive by drifting buoy communication interface the Monitoring Data bag that temperature sensor, humidity sensor and barometer gather, and monitoring temperature processor, humidity processor and barometrical duty, then by big-dipper satellite antenna, the Monitoring Data bag of temperature sensor, humidity sensor and barometer collection is sent to floor control center, the communication board of microprocessor is provided with drifting buoy check and correction clock and grasps in real time the duty of Beidou receiver, big-dipper satellite antenna is connected with the microprocessor of communication module and is square patch form, the two-layer paster that the radiating element of big-dipper satellite antenna receives B1 and two frequency ranges of B3 by correspondence is formed by stacking, on two-layer paster, be respectively arranged with and be six holes that regular hexagon is arranged, also being provided with six band cap capacitive probe adopts back of the body feedback mode to carry out feed by six holes through lower floor's paster and to upper strata paster B1 frequency range and lower laminating B3 frequency range, because adopting regular hexagon to arrange, probe forms Multipoint Uniform feed, feeding point signal phase is according to differing successively clockwise 60 degree, make the radiating element of big-dipper satellite antenna in working band, there is good impedance bandwidth and axial ratio characteristic, phase center is more stable simultaneously, the radiating element of big-dipper satellite antenna adopts the circuit form of three grades of amplifications, and input and output matching network is set, for the multiple signals that make to receive from radiation patch are coupled into a road signal, finally be input to Beidou receiver by an interface, six feeding point signals of B1 frequency range are divided into two parts and amplify, first four feeding point signals are coupled into two paths of signals by 3dB the first electric bridge 10 and 3dB the second electric bridge 11 respectively, being transferred to 3dB the 4th electric bridge 13 through the first microstrip line 28 and the second microstrip line 29 respectively amplifies and is coupled into a road signal, two other feeding point signal is coupled into a road signal by 3dB the 3rd electric bridge 12, be transferred to 3dB the 5th electric bridge 14 and carry out second level amplification through the 3rd microstrip line 30, composite signal after amplify the first order and the second level is transferred to after 3dB the 6th electric bridge 15 carries out third level amplification and is coupled into a road signal through the 4th microstrip line 32 and the 5th microstrip line 31 respectively, then be input to Beidou receiver by an interface, big-dipper satellite antenna amplifies through six feeding point feeds and three grades of low noise amplifiers of radiating element, can effectively eliminate the noise error of its phase center offset error and drifting buoy, thereby effectively improve the positioning precision of drifting buoy, drifting buoy support comprises centre strut 2, top scaffold 3, bottom scaffold 4, series winding bar 5, ball float 6, corrosion-resistant canvas 7 and load-carrying 9, centre strut 2 adopts pvc pipe material to make, top scaffold 3 and bottom scaffold 4 form by two thin bars that are decussate texture, top scaffold 3 is fixedly mounted on the top of centre strut 2, bottom scaffold 4 is fixedly mounted on the bottom of centre strut 2, the thin bar correspondence of the thin bar of top scaffold 3 and bottom scaffold 4 is parallel, four ends of top scaffold 3 thin bars are installed with respectively series winding bar 5, each series winding bar 5 is connected with respectively two ball floats 6, when the size of ball float 6 determines and can make drifting buoy drift about in water according to the general assembly (TW) of drifting buoy, Beidou receiver is positioned on the water surface, between the thin bar of top scaffold 3 and bottom scaffold 4, fixedly hang respectively corrosion-resistant canvas 7, one side of corrosion-resistant canvas 7 is hung in the thin bar of top scaffold 3, opposite side is hung in the thin bar of bottom scaffold 4, and corrosion-resistant canvas 7 can make drifting buoy and current synchronizing moving, load-carrying 9 is fixedly mounted on the lower end guarantee drifting buoy energy vertical straight of centre strut 2 and stands in water and Beidou receiver is positioned on the water surface.
Claims (3)
1. the centimetre-sized drifting buoy device of a satellite navigation system, comprise Beidou receiver and drifting buoy support, Beidou receiver is fixedly mounted on the upper end of drifting buoy support, it is characterized in that: Beidou receiver comprises Beidou receiver shell and Beidou receiver internal work platform, Beidou receiver shell is wrapped in Beidou receiver internal work platform makes Beidou receiver internal work platform not destroyed by external environment condition, on the episphere outside surface of the Beidou receiver shell of glass-reinforced plastic material or square, solar cell is installed in the top side face of rectangular parallelepiped and cone structure to be used for to Beidou receiver internal work platform power, Beidou receiver internal work platform is installed with big-dipper satellite antenna, communication module, temperature sensor, humidity sensor and barometer, drifting buoy support comprises centre strut, top scaffold, bottom scaffold, series winding bar, ball float, corrosion-resistant canvas and load-carrying, top scaffold and bottom scaffold are fixedly mounted on respectively the upper and lower of centre strut, series winding bar is fixedly mounted on the scaffold of top, when ball float is fixedly mounted on series winding and makes drifting buoy in water on bar, Beidou receiver is on the water surface, one side of corrosion-resistant canvas is hung on opposite side on the scaffold of top and is hung on the scaffold of bottom, and load-carrying is fixedly mounted on centre strut bottom, the centre strut of drifting buoy support adopts pvc pipe material to make, top scaffold and bottom scaffold form by two thin bars that are decussate texture, the thin bar correspondence of the thin bar of top scaffold and bottom scaffold is parallel, four ends of top scaffold thin bar are installed with respectively series winding bar, and when each series winding bar is connected with respectively two ball floats and can makes drifting buoy drift about in water, Beidou receiver is positioned on the water surface.
2. the centimetre-sized drifting buoy device of satellite navigation system according to claim 1, it is characterized in that: described communication module is centered by microprocessor, be provided with the RAM storer of the 256KB byte that makes the quick operation of program and preserve the FLASH storer of the 8MB byte of temperature, humidity, Pressure monitoring packet at microprocessor internal, the logical circuit that microprocessor internal is also provided with communication board and can carries out internal logic programming, microprocessor uses two universal asynchronous serial interfaces as big-dipper satellite communication interface and drifting buoy communication interface, the communication board of microprocessor completes satellite time transfer by big-dipper satellite communication interface control Beidou receiver, geo-location and bidirectional data transfers work, receive temperature sensor by drifting buoy communication interface, Monitoring Data bag monitoring temperature processor that humidity sensor and barometer gather, humidity processor and barometrical duty, then pass through big-dipper satellite antenna by temperature sensor, the Monitoring Data bag of humidity sensor and barometer collection is sent to floor control center, the communication board of microprocessor is provided with drifting buoy check and correction clock and grasps in real time the duty of Beidou receiver, described big-dipper satellite antenna is connected with microprocessor.
3. the centimetre-sized drifting buoy device of satellite navigation system according to claim 1, it is characterized in that: described big-dipper satellite antenna is square patch form, the two-layer paster that its radiating element receives B1 and two frequency ranges of B3 by correspondence is formed by stacking, on two-layer paster, be respectively arranged with and be six holes that regular hexagon is arranged, also being provided with six band cap capacitive probe adopts back of the body feedback mode to carry out feed by six holes through lower floor's paster and to upper strata paster B1 frequency range and lower laminating B3 frequency range, adopt regular hexagon to arrange and form Multipoint Uniform feed, feeding point signal phase is according to differing successively clockwise 60 degree, the radiating element of described big-dipper satellite antenna adopts the circuit form of three grades of amplifications, and input and output matching network is set, six feeding point signals of B1 frequency range are divided into two parts and amplify, four feeding point signals are coupled into two paths of signals by 3dB the first electric bridge and 3dB the second electric bridge respectively, being transferred to 3dB the 4th electric bridge through the first microstrip line and the second microstrip line respectively amplifies and is coupled into a road signal, two other feeding point signal is coupled into a road signal by 3dB the 3rd electric bridge, be transferred to 3dB the 5th electric bridge and carry out second level amplification through the 3rd microstrip line, composite signal after amplify the first order and the second level is transferred to after 3dB the 6th electric bridge carries out third level amplification and is coupled into a road signal through the 4th microstrip line and the 5th microstrip line respectively, then be input to Beidou receiver by an interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200638.0A CN102706332B (en) | 2012-06-18 | 2012-06-18 | Centimeter-sized drifting buoy device of satellite navigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200638.0A CN102706332B (en) | 2012-06-18 | 2012-06-18 | Centimeter-sized drifting buoy device of satellite navigation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102706332A CN102706332A (en) | 2012-10-03 |
| CN102706332B true CN102706332B (en) | 2014-07-30 |
Family
ID=46899284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210200638.0A Expired - Fee Related CN102706332B (en) | 2012-06-18 | 2012-06-18 | Centimeter-sized drifting buoy device of satellite navigation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102706332B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744083A (en) * | 2013-04-23 | 2014-04-23 | 苏州爱思索电子科技有限公司 | Float type sonar navigation system device |
| CN103840924B (en) * | 2014-02-27 | 2017-04-12 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Oceanic autonomous observation platform data transmission method based on Beidou communication |
| CN105986955A (en) * | 2015-03-03 | 2016-10-05 | 刘广 | Water floater lamp on sea |
| CN106225883B (en) * | 2016-09-09 | 2024-03-15 | 北京国信华源科技有限公司 | Flood beacon |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201285448Y (en) * | 2008-07-16 | 2009-08-05 | 交通部水运科学研究所 | Buoy positioning communication apparatus for Beidou satellite |
| KR101205665B1 (en) * | 2010-06-17 | 2012-11-27 | 윤삼걸 | In dealing with climate change and increase power system real-time observation of marine life |
| KR101109411B1 (en) * | 2010-12-22 | 2012-02-22 | 대한민국 | Buoy for detecting tidal current with expanded flag type |
| JP5093384B2 (en) * | 2011-06-15 | 2012-12-12 | 株式会社Ｊｖｃケンウッド | Crest structure buoy structure |
| CN202256722U (en) * | 2011-09-30 | 2012-05-30 | 山东省科学院海洋仪器仪表研究所 | Multi-parameter surface drifting buoy |
-
2012
- 2012-06-18 CN CN201210200638.0A patent/CN102706332B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102706332A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201362339Y (en) | Shallow sea self-restraining type drifting circulation detecting buoy | |
| CN103600814B (en) | The complete autonomous marine environmental monitoring buoy of a kind of frame-type | |
| CN207515844U (en) | A kind of marine environmental monitoring device | |
| CN204359313U (en) | A kind of hydrology buoy monitoring device | |
| CN102706332B (en) | Centimeter-sized drifting buoy device of satellite navigation system | |
| CN201653423U (en) | Water flow tracking measurement buoy | |
| CN103935472A (en) | Dynamic positioning type ocean buoy | |
| CN209321187U (en) | A kind of automatic tour marine float platform | |
| CN110745213B (en) | Anchoring system performance on-site monitoring system suitable for deep sea buoy elastic looseness formula | |
| CN102507972A (en) | Surface velocity and flow direction measuring device | |
| CN202256722U (en) | Multi-parameter surface drifting buoy | |
| CN111381293A (en) | Marine meteorological and hydrological observation system | |
| CN109374922A (en) | One kind being used for the vertical stable flow velocity profile survey buoy of wave glider pull-type | |
| CN201566815U (en) | Variously-combined low-resistance frame-type water-surface platform suitable for high and middle sea stations | |
| CN209486331U (en) | A kind of maritime meteorology and Hydrological observation system | |
| CN208665485U (en) | A kind of Beidou communication drifting buoy for the acquisition of ambient sea noise cross-sectional data | |
| CN102050207B (en) | Multi-composite type low-resistance frame type water surface platform adaptive to middle and high latitude ocean conditions | |
| CN207675217U (en) | A kind of integral multi-parameter soil moisture content instrument | |
| CN203673066U (en) | Buoy type high-frequency ground wave radar | |
| CN108195357A (en) | A kind of observation and analysis system for coastal waters wave water level scene | |
| CN211918937U (en) | Ocean information acquisition device | |
| CN203975153U (en) | Dynamic positioning formula oceanographic buoy | |
| CN209014598U (en) | One kind being used for the vertical stable flow velocity profile survey buoy of wave glider pull-type | |
| CN204807161U (en) | Throw type water level monitoring devices | |
| CN206456513U (en) | A kind of Portable buoy throwing device for hydrologic survey |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20150618 |
|
| EXPY | Termination of patent right or utility model |