CN205646163U - Microwave antenna - Google Patents
Microwave antenna Download PDFInfo
- Publication number
- CN205646163U CN205646163U CN201620479162.2U CN201620479162U CN205646163U CN 205646163 U CN205646163 U CN 205646163U CN 201620479162 U CN201620479162 U CN 201620479162U CN 205646163 U CN205646163 U CN 205646163U
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- China
- Prior art keywords
- protective plate
- antenna
- pole
- microwave antenna
- snow shed
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- 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
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Abstract
The application provides a microwave antenna relates to the antenna field. The application provides a microwave antenna, it is through having set up armful pole and set up antenna main part and protector on embracing the pole, and wherein, protector includes a driving motor and the guard plate of being connected with a driving motor's output, and a driving motor can be with the guard plate at antenna main part top horizontal migration, the guard plate is the metal material, and evenly distributed has a plurality of through -holes on the guard plate, and the upper surface of guard plate has been paintd and has been prevented the corrosion protection layer, and the border of guard plate is the fillet. And then the user can adjust the position of guard plate through controlled drive motor, when hail, sleet weather appearing, can remove the guard plate to the antenna main part directly over. And, through set up the through -hole on the guard plate, avoided the too much sleet of extrusion, ice -cube on the guard plate, improve the life of guard plate, and then improved the life of antenna main part.
Description
Technical field
This utility model relates to field of antenna, in particular to microwave antenna.
Background technology
Microwave antenna is operate on the transmitting of the wave bands such as metric wave, decimetric wave, centimeter wave, millimeter wave
Or reception antenna.In view of the characteristic of microwave antenna working method, usual microwave antenna is to set up
On the position that physical features is higher, to ensure the normal of signal transmitting and receiving.
Along with the increase of the time of use, and the change of natural environment, it may appear that microwave antenna is subject to
Natural environment influence and situation about damaging.As, rain, snow, hail weather may directly result in micro-
The damage of wave antenna.Especially in northern area and the most bleak and desolate area, the sky in its winter is vaporous
Condition is the most severe, and then can cause being easier to damage at the microwave antenna of this kind of areal setting
Bad.
Utility model content
The purpose of this utility model is to provide microwave antenna, to increase the use longevity of microwave antenna
Life.
First aspect, this utility model embodiment provides microwave antenna, including:
Pole, the antenna body being arranged on pole and protector, protector includes the first driving
The protective plate that motor and the outfan with the first driving motor are connected, first drives motor to prevent
Backplate moves horizontally above at antenna body；
Protective plate is to be evenly distributed with multiple through hole, adjacent two on metal material, and protective plate
Spacing between individual through hole is more than 10cm, and the diameter of each through hole is more than 0.5cm, and is less than
1cm；
The upper surface of protective plate is coated with corrosion protective layer, and the edge of protective plate is fillet.
In conjunction with first aspect, this utility model embodiment provides the first possibility of first aspect
Embodiment, wherein, the upper surface of protective plate is additionally provided with pressure transducer and pressure ratio relatively
Device, pressure comparator drives motor to electrically connect with pressure transducer and first respectively；
Pressure comparator, exceedes predetermined threshold value for the force value detected when pressure transducer
Time, control the first driving motor and protective plate is moved to the top of antenna body.
In conjunction with first aspect, this utility model embodiment provides the second of first aspect may
Embodiment, wherein, protective plate is the straight plate of strip, and the thickness of protective plate is 5cm；
The edge, side of protective plate is provided with fixing bolt, and protective plate is by fixing bolt
The outfan driving motor with first is fixed and is connected.
In conjunction with first aspect, this utility model embodiment provides the third possibility of first aspect
Embodiment, wherein, protector also includes that the second driving motor and second drives motor
The snow shed of outfan electrical connection, the temperature sensor that is arranged on snow shed, and respectively with temperature
Degree sensor, the temperature comparator of the second driving motor electrical connection；
Temperature comparator is used for when the temperature value that temperature sensor detects is less than predetermined threshold value,
Control the second driving motor and snow shed is moved to the top of antenna body, and work as temperature sensor
When the temperature value detected is higher than predetermined threshold value, controls the second driving motor and snow shed is moved to
Antenna body and between pole.
In conjunction with first aspect, this utility model embodiment provides the 4th kind of possibility of first aspect
Embodiment, wherein, snow shed in strip, and its cross section along its length is
Semicircle, the concave surface of snow shed is towards antenna body；
The thickness of snow shed is 3cm, and is provided with multiple guiding groove on the convex surface of snow shed.
In conjunction with first aspect, this utility model embodiment provides the 5th kind of possibility of first aspect
Embodiment, wherein, protector also includes the fixed support being arranged on pole, and fixing
Two the driving wheels being arranged on fixed support, fixed support is elongated, and fixed support
It is mutually perpendicular to pole；
Two drive wheels to set gradually along support bracket fastened length direction；
Second drives the outfan of motor by driving wheels to be connected with snow shed.
In conjunction with first aspect, this utility model embodiment provides the 6th kind of possibility of first aspect
Embodiment, wherein, protector also includes air velocity transducer and the wind being arranged on snow shed
Speed comparator；
Wind speed comparator drives motor to electrically connect with air velocity transducer and second respectively；
Wind speed comparator, exceedes predetermined threshold value for the air speed value detected when air velocity transducer
Time, control the second driving motor and snow shed is moved to the antenna body side away from pole.
In conjunction with first aspect, this utility model embodiment provides the 7th kind of possibility of first aspect
Embodiment, wherein, the concave surface of snow shed is additionally provided with reflecting layer.
In conjunction with first aspect, this utility model embodiment provides the 8th kind of possibility of first aspect
Embodiment, wherein, also include connecting antenna body and the hydraulically extensible cylinder of pole；
One end of hydraulically extensible cylinder is fixing with pole to be connected, and the other end passes through universal joint and antenna
Main body connects.
In conjunction with first aspect, this utility model embodiment provides the 9th kind of possibility of first aspect
Embodiment, wherein, antenna body is away from a side surface of pole, the most successively
It is provided with frost retarding layer, thermal insulation layer and corrosion-resistant coating.
The microwave antenna that this utility model embodiment provides, uses the mode arranging protector to subtract
The probability that few antenna damages is the most exposed in room with the main body of microwave antenna of the prior art
Outward, cause microwave antenna to be easily subject to the infringement of natural environment, cause microwave antenna to be easily damaged
Comparing, it is by being provided with pole and being provided with antenna body and protector on pole, its
In, protector includes the first driving motor and the protection driving the outfan of motor to be connected with first
Plate, first drives motor to be moved horizontally above at antenna body by protective plate；Protective plate is gold
Belong in material, and protective plate and be evenly distributed with multiple through hole, between two adjacent through holes between
Away from more than 10cm, the diameter of each through hole is more than 0.5cm, and less than 1cm；Protective plate
Upper surface is coated with corrosion protective layer, and the edge of protective plate is fillet.And then, user
Can be by controlling the position driving motor to adjust protective plate, when hail, sleety weather occur
Time, protective plate can be moved the surface to antenna body.Further, by protective plate
It is provided with through hole, it is to avoid extrude too much sleet, ice cube on protective plate, improve protective plate
Service life, and then improve the service life of antenna body.
For making above-mentioned purpose of the present utility model, feature and advantage to become apparent, hereafter special
Lift preferred embodiment, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to enforcement
In example, the required accompanying drawing used is briefly described, it will be appreciated that the following drawings only illustrates
Some embodiment of the present utility model, is therefore not construed as the restriction to scope, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root
Other relevant accompanying drawings are obtained according to these accompanying drawings.
What Fig. 1 showed the microwave antenna that this utility model embodiment provided is provided with protection
The basic block diagram of plate；
Fig. 2 shows bowing of the protective plate of the microwave antenna that this utility model embodiment provided
View；
What Fig. 3 showed the microwave antenna that this utility model embodiment provided is provided with snow defence
The basic block diagram of cover；
Fig. 4 shows a kind of axonometric chart of the microwave antenna that this utility model embodiment provided；
Fig. 5 shows the another kind of three-dimensional of the microwave antenna that this utility model embodiment provided
Figure；
Fig. 6 shows the partial enlarged drawing of the microwave antenna that this utility model embodiment provided.
Main element symbol description:
101, pole；102, protective plate；103, antenna body；104, through hole；105,
Fixed support；106, snow shed；107, drivewheel；108, driven pulley.
Detailed description of the invention
Below in conjunction with accompanying drawing in this utility model embodiment, in this utility model embodiment
Technical scheme is clearly and completely described, it is clear that described embodiment is only this reality
By novel a part of embodiment rather than whole embodiments.Generally described in the accompanying drawing herein
Can arrange with various different configurations with the assembly of this utility model embodiment illustrated and
Design.Therefore, detailed description to the embodiment of the present utility model provided in the accompanying drawings below
It is not intended to limit claimed scope of the present utility model, but it is new to be merely representative of this practicality
The selected embodiment of type.Based on embodiment of the present utility model, those skilled in the art are not having
The every other embodiment obtained on the premise of making creative work, broadly falls into this practicality new
The scope of type protection.
In correlation technique, microwave antenna is directly exposed in external environment condition, does not protect knot
It is protected by structure, and this directly results in microwave antenna is affected by adverse circumstances, and causes holding
Fragile.
For this kind of situation, the application provides microwave antenna targetedly, as shown in figures 1 to 6,
Including:
Pole 101, the antenna body 103 being arranged on pole 101 and protector, protector
The protective plate 102 that outfan including the first driving motor with the first driving motor is connected, the
One drives motor to be moved horizontally above at antenna body 103 by protective plate 102；
Protective plate 102 is to be evenly distributed with multiple through hole on metal material, and protective plate 102
104, the adjacent spacing between two through holes 104 is more than 10cm, each through hole 104 straight
Footpath is more than 0.5cm, and less than 1cm；
The upper surface of protective plate 102 is coated with corrosion protective layer, and the edge of protective plate 102
For fillet.
Wherein, pole 101 refers to the columnar stays fixed on the ground by antenna body 103
Structure, or tower-like supporting construction, its one end fixes on the ground, the other end and antenna master
Body 103 (being responsible for the structure of microwave signal transmitting-receiving task) connects.Generally pole 101 and antenna
Main body 103 is fixed by interface unit.
First drives motor to be used to protective plate 102 in mobile protector.In general, only
Have and run into hail, or during similar strong weather, just can be by the first driving motor by protective plate
102 surfaces moving to antenna body 103；Then can be by anti-after this weather stops
Backplate 102 moves to the upper lateral part of antenna, to avoid protective plate 102 to hinder microwave antenna to receive
Signal.Concrete, the surface area of protective plate 102 should be completely covered microwave antenna, and
And the surface area of protective plate 102 should be more than the face of microwave antenna vertical direction maximum cross section
Long-pending 50%.
Protective plate 102 is set to metal material, mainly in view of increasing the service life, carries
The effect of high protection intensity.The concrete material of protective plate 102 can be rustless steel.Based on identical
Consideration, it is also possible to by arranging through hole 104 on protective plate 102 so that protective plate 102
Upper surface is not easy to produce the problem such as accumulated snow, hydrops.Also improve the logical of protective plate 102 simultaneously
Wind performance so that it is under strong wind weather, wind energy is enough to be passed from through hole 104, it is to avoid protective plate
102 problems blown off.Being similar to, the upper surface at protective plate 102 smears anti-corrosion protection
Layer, it is also possible to play the effect extending its service life.
Meanwhile, the distance between through hole 104 should be not overstocked, otherwise can cause protective plate 102
Bulk strength decline, and the diameter of through hole 104 the most should not be excessive, or too small, otherwise
Also result in bulk strength too low, maybe cannot play the effect of ventilation.
During use, protective plate 102 can have two kinds of ways of realization, the first be use fold or
Multiple platelets are formed a complete protective plate 102 by the mode extended.The second is to use
External and internal compositions design, i.e. the inside of protective plate 102 is fiberglass plastic plate, outside be
The outside of this plastic plate is additionally arranged corrosion resistant plate.
First drives the working method of motor to have two kinds, and the first is user's manual actuation, and second
Kind is affected by the driving of sensor and automatically controls.
In the case of the first working method, user can carry out Non-follow control by remote controllers
First duty driving motor.
In the case of the second working method, it is that pressure is set at the upper surface of protective plate 102
Sensor and pressure comparator, wherein, pressure comparator drives with pressure transducer and first respectively
Galvanic electricity mechatronics；Pressure comparator, exceedes for the force value detected when pressure transducer
During predetermined threshold value, control the first driving motor and protective plate 102 is moved to antenna body 103
Surface.Further, when the force value that pressure transducer detects is less than predetermined threshold value, control
Protective plate 102 is moved to above the side of antenna body 103 by system the first driving motor.Wherein,
Pressure transducer should be provided with multiple, and these multiple pressure transducers should be evenly distributed on anti-
The upper surface of backplate 102, to have detected whether that hail or heavy rain fall.
Concrete, protective plate 102 is the straight plate of strip, and the thickness of protective plate 102 is 5cm；
The edge, side of protective plate 102 is provided with fixing bolt, and protective plate 102 passes through
Fixing bolt and first drives the fixing connection of outfan of motor.
In addition to protective plate 102 is set, it is also possible to snow shed 106 is set on microwave antenna,
One plays snow defence and anti-big wind action.Concrete, protector also include the second driving motor,
With second drive motor outfan electrically connect snow shed 106, be arranged on snow shed 106
Temperature sensor, and respectively with temperature sensor, second drive the temperature ratio that electrically connects of motor
Relatively device；
Temperature comparator is used for when the temperature value that temperature sensor detects is less than predetermined threshold value,
Control the second driving motor and snow shed 106 is moved to the top of antenna body 103, and when temperature
When the temperature value that degree sensor detects is higher than predetermined threshold value, control the second driving motor by snow defence
Cover 106 move to antenna body 103 and between pole 101.
That is, snow shed 106 is to use the mode automatically controlled (to be controlled by temperature comparator
System), when temperature is too low when, (it is typically below about 2 °) drives snow shed 106 to move
Move the top to antenna body 103, and when temperature is higher when, snow shed 106 is moved
To between antenna body 103 and pole 101.With needs when, carry out snow defence, if any
A large amount of accumulated snow fall on microwave antenna, then can affect the reception of its signal；And, need not
When, it is to avoid it stops that microwave antenna receives signal.
Preferably, snow shed 106 in strip, and its cross section along its length is half
Circle, the concave surface of snow shed 106 is towards antenna body 103；
The thickness of snow shed 106 is 3cm, and is provided with multiple on the convex surface of snow shed 106
Guiding groove.
Compared to the snow shed of flat board dress, cross section is that semicircular snow shed 106 can improve
Snow defence effect, has also avoided sleet simultaneously, or other foreign material are accumulated on snow shed 106.?
On the convex surface of snow shed 106, guiding groove is set, it is possible on snow shed 106, produce hydrops, amass
When snow or long-pending thing, guide the automatic landing of these objects.Concrete, guiding groove can be to use half
The form of hollow out, is engraved on the convex surface of snow shed 106, and, guiding groove should be multiple,
And uniform fold is on the convex surface of snow shed 106, one end of guiding groove should be near snow shed
The middle part of 106 convex surfaces, the other end should be near the edge of snow shed 106.
For the ease of mobile snow shed 106, support and moving assembly can be set targetedly.
Concrete, protector also includes the fixed support 105 being arranged on pole 101, and fixing sets
Putting two driving wheels on fixed support 105, fixed support 105 is elongated, and solid
Fixed rack 105 is mutually perpendicular to pole 101；Two drive wheels along the length of fixed support 105
Degree direction sets gradually；Second drives the outfan of motor by driving wheels and snow shed 106
Connect.
In general, driving in wheels and have two wheels to be constituted, wherein, one is actively
Wheel 107, another is driven pulley 108.It is of course also possible to be to drive in wheels to be both
Drivewheel 107.In addition to arranging driving wheels, also should coordinate arranges locating part, to protect
Card snow shed 106 will not mark from driving wheels.Concrete, as shown in FIG., locating part
Should at least two, a left part driving wheels being arranged on left side, another is arranged on
The right part of right side drive wheel group.
In the case of strong wind weather, not only can affect the transmitting-receiving ability of microwave antenna, also can be by
Ground object blows afloat, and causes object to be attached on microwave antenna, or object can be by
Microwave antenna smashes.For this kind of situation, in microwave antenna provided herein, protector
Also include being arranged on the air velocity transducer on snow shed 106 and wind speed comparator；Wind speed comparator
Motor is driven to electrically connect with air velocity transducer and second respectively；Wind speed comparator, for working as wind speed
When the air speed value that sensor detects exceedes predetermined threshold value, control the second driving motor by snow shed
106 move to the antenna body 103 side away from pole 101.
That is, snow shed 106 can be moved to sky wind speed is excessive when by wind speed comparator
The outside of line main body 103, to protect microwave antenna.Under normal circumstances, the material of snow shed 106
Matter can be this light weight of rigid plastics, and has the material of some strength.Compared to protective plate
102 (needing anti-hail), the object that snow shed 106 is protected is the most simply too much, and then snow defence
For the kinetic energy of the object that cover 106 is protected is compared to hail, can be much smaller, therefore, snow defence
Cover 106 is only required to be the rigid plastics being not easy corrosion and fair wear and tear.
In view of snow shed 106 under major part state, all it is at pole 101 and antenna master
Between body 103 (microthermal climate and strong wind weather are less), therefore, in order to make full use of snow defence
Cover 106.Reflecting layer can be provided with on the concave surface of snow shed 106.And then, due to snow defence
The concave surface of cover 106 is towards antenna body 103, then emission layer is also semicircular in shape, and its circle
The heart is directed towards antenna body 103, and then reflecting layer can play converging microwave to a certain extent
The function of signal, to strengthen antenna strength.
Concrete, for the ease of adjust antenna body 103 position and towards, to adjust signal
The quality of reception, microwave antenna provided herein, also include connecting antenna body 103 and embracing
The hydraulically extensible cylinder of bar 101；One end of hydraulically extensible cylinder is fixing with pole 101 to be connected,
The other end is connected with antenna body 103 by universal joint.
Generally, microwave antenna may require that on the premise of ensureing gain, improves this sky
The half-power beam width of line, for this kind of needs, enters the structure of antenna body 103 below
Row explanation:
Antenna body 103 includes fan-shaped microwave antenna body, antenna spoke at fan anteena body
The inborn nature structure arranged outside loophole face and antenna house, inborn nature structure includes that one or more are convex
The hill risen, has recessed groove, depth of groove and hill with convex between two adjacent hill
Distance between peak is 1/4 operation wavelength, and hill thickness is 0.9-1.1mm.
Concrete, fan anteena body uses double form processing of cavity, has the most accurately
Size and reliable and stable architectural characteristic.
Preferably, the primary radiation feed of fan-shaped microwave antenna body uses Feed oblique incidence
Reflective surface portion curve, this
Sample is effectively reduced shielded area, improves this novel microwave antenna overall performance.
Wherein, primary radiation feed uses H face sectoral horn；Choose this Feed because of it
Having higher gain, relatively flat phase characteristic, this Feed selection of dimension is optimum phase
Position radiation characteristic H face sectoral horn.
Preferably, antenna body 103, away from a side surface of pole 101, depends on from inside to outside
Secondary it is provided with frost retarding layer, thermal insulation layer and corrosion-resistant coating.
The above, detailed description of the invention the most of the present utility model, but of the present utility model
Protection domain is not limited thereto, and any those familiar with the art is new in this practicality
In the technical scope that type discloses, change can be readily occurred in or replace, all should contain in this practicality new
Within the protection domain of type.Therefore, protection domain of the present utility model should be described with claim
Protection domain be as the criterion.
Claims (10)
1. microwave antenna, it is characterised in that including:
Pole, the antenna body being arranged on described pole and protector, described protector includes
First drives motor and drives the protective plate that is connected of outfan of motor with described first, and described the
One drives motor to be moved horizontally above at described antenna body by described protective plate；
Described protective plate is to be evenly distributed with multiple through hole on metal material, and described protective plate,
The adjacent spacing between two through holes is more than 10cm, and the diameter of each through hole is more than 0.5cm,
And less than 1cm；
The upper surface of protective plate is coated with corrosion protective layer, and the edge of protective plate is fillet.
Microwave antenna the most according to claim 1, it is characterised in that
The upper surface of protective plate is additionally provided with pressure transducer and pressure comparator, pressure comparator
Motor is driven to electrically connect with pressure transducer and first respectively；
Pressure comparator, exceedes predetermined threshold value for the force value detected when pressure transducer
Time, control the first driving motor and protective plate is moved to the top of described antenna body.
Microwave antenna the most according to claim 1, it is characterised in that described protective plate
For the straight plate of strip, the thickness of described protective plate is 5cm；
The edge, side of described protective plate is provided with fixing bolt, and described protective plate passes through
Described fixing bolt is fixing with the outfan of described first driving motor to be connected.
Microwave antenna the most according to claim 1, it is characterised in that
Described protector also includes that the second driving motor and second drives the outfan of motor to be electrically connected
The snow shed connect, the temperature sensor being arranged on snow shed, and respectively with temperature sensor,
Second temperature comparator driving motor electrical connection；
Temperature comparator is used for when the temperature value that temperature sensor detects is less than predetermined threshold value,
Control the second driving motor and snow shed is moved to the top of antenna body, and work as temperature sensor
When the temperature value detected is higher than predetermined threshold value, controls the second driving motor and snow shed is moved to
Antenna body and between pole.
Microwave antenna the most according to claim 4, it is characterised in that
Described snow shed in strip, and its cross section along its length is semicircle, institute
State the concave surface of snow shed towards described antenna body；
The thickness of described snow shed is 3cm, and is provided with multiple on the convex surface of described snow shed
Guiding groove.
Microwave antenna the most according to claim 5, it is characterised in that described protector
Also include the fixed support being arranged on pole, and two be fixedly installed on described fixed support
Individual driving wheels, described fixed support is elongated, and fixed support is mutually perpendicular to pole；
Said two drives wheels to set gradually along described support bracket fastened length direction；
Described second drives the outfan of motor by described driving wheels with described snow shed even
Connect.
Microwave antenna the most according to claim 4, it is characterised in that protector also wraps
Include the air velocity transducer being arranged on snow shed and wind speed comparator；
Described wind speed comparator drives motor to electrically connect with described air velocity transducer and second respectively；
Described wind speed comparator, exceedes default threshold for the air speed value detected when air velocity transducer
During value, control the second driving motor and snow shed is moved to described antenna body away from described pole
Side.
Microwave antenna the most according to claim 5, it is characterised in that described snow shed
Concave surface on be additionally provided with reflecting layer.
Microwave antenna the most according to claim 6, it is characterised in that also include connecting
The hydraulically extensible cylinder of antenna body and pole；
One end of described hydraulically extensible cylinder is fixing with described pole to be connected, and the other end is by universal
Joint is connected with described antenna body.
Microwave antenna the most according to claim 1, it is characterised in that
Antenna body, away from a side surface of described pole, is disposed with antifreeze from inside to outside
Layer, thermal insulation layer and corrosion-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620479162.2U CN205646163U (en) | 2016-05-24 | 2016-05-24 | Microwave antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620479162.2U CN205646163U (en) | 2016-05-24 | 2016-05-24 | Microwave antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646163U true CN205646163U (en) | 2016-10-12 |
Family
ID=57055923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620479162.2U Expired - Fee Related CN205646163U (en) | 2016-05-24 | 2016-05-24 | Microwave antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969808A (en) * | 2017-04-11 | 2017-07-21 | 浙江农林大学暨阳学院 | The reservoir level data collecting system of view-based access control model |
| US11761428B2 (en) | 2019-06-04 | 2023-09-19 | Vestas Wind Systems A/S | Ice shield for tower mounted equipment |
-
2016
- 2016-05-24 CN CN201620479162.2U patent/CN205646163U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969808A (en) * | 2017-04-11 | 2017-07-21 | 浙江农林大学暨阳学院 | The reservoir level data collecting system of view-based access control model |
| CN106969808B (en) * | 2017-04-11 | 2021-11-19 | 浙江农林大学暨阳学院 | Reservoir water level data acquisition system based on vision |
| US11761428B2 (en) | 2019-06-04 | 2023-09-19 | Vestas Wind Systems A/S | Ice shield for tower mounted equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161012 Termination date: 20170524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |