EP3390222A1 - Fluggerät zum erfassen des windvektors - Google Patents
Fluggerät zum erfassen des windvektorsInfo
- Publication number
- EP3390222A1 EP3390222A1 EP16801752.3A EP16801752A EP3390222A1 EP 3390222 A1 EP3390222 A1 EP 3390222A1 EP 16801752 A EP16801752 A EP 16801752A EP 3390222 A1 EP3390222 A1 EP 3390222A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aircraft
- measuring device
- data
- drive units
- measuring
- 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.)
- Withdrawn
Links
- 230000005484 gravity Effects 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims description 40
- 238000001514 detection method Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- 238000011156 evaluation Methods 0.000 claims description 13
- 238000002604 ultrasonography Methods 0.000 claims description 11
- 238000013459 approach Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 238000012937 correction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- SDIXRDNYIMOKSG-UHFFFAOYSA-L disodium methyl arsenate Chemical compound [Na+].[Na+].C[As]([O-])([O-])=O SDIXRDNYIMOKSG-UHFFFAOYSA-L 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
- G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/80—UAVs characterised by their small size, e.g. micro air vehicles [MAV]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U40/00—On-board mechanical arrangements for adjusting control surfaces or rotors; On-board mechanical arrangements for in-flight adjustment of the base configuration
- B64U40/20—On-board mechanical arrangements for adjusting control surfaces or rotors; On-board mechanical arrangements for in-flight adjustment of the base configuration for in-flight adjustment of the base configuration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/08—Adaptations of balloons, missiles, or aircraft for meteorological purposes; Radiosondes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
Definitions
- the present invention relates to an unmanned, hoverable aircraft which is provided and set up to detect a wind vector, preferably in real time.
- a small aircraft with the most compact and lightweight pressure measuring probes can be equipped, as used for example in aeronautical engineering.
- an extended pitot tube with nine holes can be provided at the bow of an unmanned, small surface aircraft.
- the dynamic pressure is both at the tip of the probe as well as at four points arranged around the central hole, allowing detection of the angle of attack of the aircraft.
- the static pressure can also be measured at four points on the circumference of the probe. The wind speed is deduced from the measured pressure data.
- the measurement according to this approach has basically two disadvantages: Firstly, it is generally not possible with a surface aircraft to carry out longer-lasting measurements at a specific (fixed) position, which also has a disadvantageous effect on the reproducibility of the measurement results. On the other hand, the described dynamic pressure measurements do not allow the desired accuracy at low flow velocities.
- a separate flow measuring device can be dispensed with, the unmanned small aircraft itself being used as a wind sensor.
- a quadrocopter can be used as a sensor, the wind vector being calculated only from the positional angles of the quadrocopter with respect to the horizontal. Even with this approach, the desired accuracy can not be achieved at low flow velocities.
- an aircraft is to be specified, which allows a particularly accurate detection of a three-dimensional wind speed vector in the environment of an object.
- the aircraft should have a low total mass and allow the most cost-effective detection of a wind speed profile in the environment of an object.
- the aircraft should ensure the lowest possible sensor interference and the greatest possible redundancy.
- an unmanned, hoverable aircraft which is formed with a base body on which at least three (substantially) vertically acting drive units are spaced from each other.
- the drive units spaced apart from one another span a plane.
- Spaced to the drive units at least one measuring device is mounted on the base body.
- the measuring device is provided and set up for measuring a three-dimensional velocity vector of a flow field.
- the exhibition equipment focus of the measuring equipment lies centrally above the level.
- the object can be an (already) existing or possibly also a virtual (ie, for example, a planned and / or future arising) object.
- a wind turbine a skyscraper, a pole, an antenna or the like into consideration.
- the object is a wind turbine, so that the aircraft is particularly suitable for air travel at appropriate heights and / or adapted travel time and set up.
- the aircraft may perform wind measurements in overflight and / or hover at a particular position in the geodetic coordinate system (geoposition) and / or in the object coordinate system.
- the aircraft is equipped with several vertically acting drive units.
- vertically acting means, in particular, that the drive units can act directly against a gravitational force acting on the aircraft, at least in hovering flight.
- the drive units in flight may well have a (slight) inclination with respect to a vertical direction in the geodetic coordinate system and / or in the object coordinate system. The description here is thus based on the "theoretical ideal case", whereby this teaching is practically transferable into suitably inclined coordinate systems and accordingly equally valid.
- each drive unit Preferably, four (4) or eight (8) drive units are provided.
- the drive units are held in particular spaced from each other on cantilevers of the body.
- Each drive unit preferably has at least one rotor.
- each rotor has at least two rotor blades.
- the drive units spaced apart from each other span a (plane or geometric) plane.
- This level is regularly referred to as a so-called rotor level, at least when the drive units are each formed with rotors and all rotors lie in a common plane.
- each drive unit is equipped with at least two (vertically) superposed rotors. Consequently, in these cases not all rotors can lie together in the same plane, but in each case groups of rotors (in this case 2x4) are then regularly located in a rotor plane.
- the plane that is parallel to the rotor planes and (in the middle) between the outer rotor planes is relevant for these cases.
- the at least one measuring device is mounted on the base body and arranged spaced apart from the drive units.
- the center of gravity of the measuring system is located centrally above the level.
- the metering center of gravity has the same distance to each drive unit (For example, seen in three dimensions and / or in the projection in the plane.) "Central" is to be understood in particular here that the exhibition center of gravity, when the view is directed from above to the aircraft or if a projection of the Messin therapiess focus is considered in the plane spanned by the drive units, in an area of the plane or falls on an area of the plane, which is not spanned by the drive units, in particular by the rotors of the drive units, and between the Particularly preferably, the center of gravity of the measuring device lies exactly in the middle between the drive units.
- above-ground means that a gauge spacing is provided as the orthogonal distance between the gauge center and the top of the plane (rotor plane) Earth surface is turned away.
- Such an arrangement of the measuring device centric, above the plane (rotor plane) avoids advantageously a particularly disturbing influence of the measurement results by the aircraft itself, in particular by the flow field of the rotors.
- the measuring device is provided and set up for (local) measurement of a three-dimensional velocity vector of a flow field, in particular of a three-dimensional wind velocity vector (wind vector).
- a measuring device offers, in particular in connection with a hoverable aircraft, the particular advantage that a particularly high accuracy in the detection of the speed vector, regardless of the position of the aircraft in space, is made possible. It should be borne in mind that with increasing inclination of the aircraft, an increasing proportion of the speed vector must be measured in the center of the measuring system.
- a three-dimensional velocity profile in particular a three-dimensional wind velocity profile, can be determined in the environment of the object.
- the aircraft has a total weight, in particular take-off weight, which is a maximum of 5 kg [kilograms]. This allows for widespread acceptance and flexible use of the aircraft.
- the measuring device is formed at least with at least one 3D ultrasound anemometer or with at least one 3D hot-wire anemometer.
- the 3D ultrasound anemometer has a number of, in particular three (3), ultrasound transmitters and a plurality, in particular three (3), ultrasound receivers, wherein a measurement path of fixed predetermined length is formed in each case between an ultrasound transmitter and an associated ultrasound receiver.
- the ultrasound transmitters and ultrasound receivers are arranged such that the measurement paths are aligned obliquely, in particular orthogonally, with respect to one another.
- the SD ultrasonic anemometer enables the measurement of the size and direction of the flow velocities in the three spatial directions on the basis of the measured transit times of the ultrasonic waves between the ultrasonic transmitter and the ultrasonic receiver.
- the 3D hot-wire anemometer has a plurality of, in particular three (3) or four (4), hot wires, which are aligned obliquely, in particular orthogonal, to each other.
- the 3D hot wire anemometer enables the measurement of the size and direction of the flow velocities in the three spatial directions.
- the measuring principle of the 3D hot wire anemometer is based on the physical principle of forced convection. In this case, the physical relationship between the heat output of a heated wire to a flow and its flow velocity is used.
- the aircraft is equipped at least with a flight condition detection device or with a position detection device.
- the flight condition detection device preferably comprises a plurality of inertial sensors for measuring the accelerations and yaw rates of the aircraft. On the basis of this data, it is possible to infer the position of the aircraft in the room.
- the inertial sensors are combined in an inertial measurement unit (inertial measurement unit, IMU).
- the position detection device comprises a receiver of a differential satellite navigation system, particularly preferably a so-called DGPS (Differential Global Positioning System) receiver (DGPS).
- DGPS Different Global Positioning System
- a DGPS receiver allows for very accurate positioning (accuracy is in the range of 5 cm [centimeters]) because positional inaccuracies that can occur when using conventional satellite navigation systems (eg GPS) are due to fixed reference correction signals Stations are corrected.
- the DGPS receiver can help to ensure a highly accurate positioning of the aircraft and thus also the measuring device at a waypoint.
- the aircraft is equipped with an evaluation device that is provided and set up to read out and process measurement data of the measuring device, flight state data of the flight state detection device and position data of the position detection device, and the measurement data Based on the flight condition data and the position data.
- the evaluation device can read position data from the flight condition detection device and speed data from the position detection device and correct the three-dimensional velocity vector of the flow field measured by the measuring device as a function of the position data and velocity data.
- the The speed vector influenced by the aircraft movement movements can be eliminated or corrected.
- the aircraft has an adjusting device, which is provided and set up to compensate for the overall center of gravity of the aircraft.
- the overall center of gravity of the aircraft is set in particular so that it lies (exactly) in the plane (rotor plane).
- the adjusting device advantageously makes it possible to set the overall weight distribution of the aircraft with (vertically) overhead or mounted measuring device such that a very good intrinsic stability of the aircraft can be achieved.
- the adjusting device can cooperate with at least one, attached to the aircraft counterweight.
- the counterweight can also fulfill an additional function in addition to providing a leveling compound, z. B. an energy storage, in particular a battery, be and / or this include.
- the orthogonal distance between the counterweight center of gravity and the plane by means of the adjusting device may optionally be (flexibly) adjustable.
- the adjustment device may comprise a cross member, a mounting rod, a threaded rod, a telescopic boom or the like.
- the adjusting device is formed with a, in particular flexibly mountable and / or displaceable, Traverse, which is held on at least one leg of the aircraft (displaceable) or clamped between at least two legs of the aircraft.
- a counterweight distance is set which can be determined as a function of the measuring device distance, the measuring device mass and the counterweight mass.
- the following mathematical, formulaic relationship can serve this purpose:
- the measuring device distance relates to the orthogonal distance between the measuring device center of gravity and the plane (rotor plane).
- the counterbalance distance relates to the orthogonal distance between the counterweight center of gravity and the plane.
- the countermass mass can be from 800 g to 2000 g, in particular from 900 g to 1700 g or even from 1100 g to 1400 g.
- a large measuring device distance offers the advantage that the measurement results are influenced very little by the aircraft itself, in particular the rotors.
- the drive units are each designed with at least two (2) superposed rotors.
- a drive motor is assigned to each of the rotors.
- the at least two superposed rotors are arranged or aligned in a so-called push-pull arrangement.
- the lower rotor is set up and / or aligned so that he can push the aircraft upwards (pressure propeller).
- the upper rotor is set up and / or aligned so that it can pull the aircraft upwards (draft propeller).
- Such an arrangement advantageously allows compression of the lift-generating components, so that with the greatest possible redundancy, the smallest possible influence of the flow field on the Measuring device position can be done.
- this arrangement enables the impulse force applied by the drive units and required for flying to be realized with the lowest possible air volume flow, which minimizes the influence of the measuring device.
- a method for autonomously measuring a three-dimensional wind velocity profile in the vicinity of an object with an aircraft is proposed.
- the aircraft is designed according to one of the variants proposed here.
- the method comprises at least the following steps:
- step a) is performed prior to the start of a measurement flight.
- the steps b), c) and d) can be carried out continuously during the measuring flight of the aircraft in the order indicated.
- the steps c) and d) are preferably carried out at or shortly after each waypoint has been reached. It is also possible that (only) steps b) and c) are carried out repeatedly during a measurement flight, wherein step c) is carried out in particular at each waypoint.
- the determined measurement data can be stored on a storage unit of the aircraft and only be transmitted to the end of a measurement flight or after the landing of the aircraft to the ground station.
- the evaluation of the measurement data in step c) first (locally) in a the aircraft associated Aircraft coordinate system is carried out, wherein the measurement data by means of an evaluation of the aircraft of the aircraft coordinate system at least in an object coordinate system or in a geodetic coordinate system are converted (so-called coordinate transformation) before the measurement data are transmitted to the ground station.
- the measured data evaluated in step c) are corrected in the evaluation device with position data and position data of the aircraft.
- the influences of the translational and rotational eigenmovements of the aircraft on the measurement of the velocity vector (in real time) can be detected by means of sensors, in particular by means of the flight state detection device and / or the position detection device, and corrected by means of corresponding algorithms integrated in the evaluation device.
- This measured value correction preferably takes place before the coordinate transformation into the object coordinate system and / or the geodetic coordinate system.
- the measurement data evaluated in step c) are fed to a control unit of the aircraft, wherein the control unit actuates the drive units as a function of the measured data.
- the measured (local) velocity vector can serve as a feedback s large to improve the accuracy of a position control and / or attitude control of the aircraft. This can help to ensure a highly accurate positioning and / or orientation of the aircraft and thus also the measuring device at a waypoint.
- an aircraft presented here for the autonomous measurement of a three-dimensional wind velocity profile in the environment of an object.
- the aircraft can be used to calibrate a so-called lidar system (Light Detection And Range) or Sodar system (Sound / Sonic Detecting And Ranging).
- the aircraft can be used to estimate the sound propagation in the environment of an object.
- Fig. 1 an unmanned, hoverable aircraft in a perspective
- FIG. 2 schematically, an unmanned, hoverable aircraft in a side view
- FIG. 3 shows an illustration of a method for the autonomous measurement of a three-dimensional wind velocity profile in the environment of an object with an aircraft.
- Fig. 1 shows an unmanned, hoverable aircraft 1 in a perspective view.
- the aircraft 1 has a base body 2, on which four (4) vertically acting drive units 3 are held at a distance from each other.
- Such an embodiment of an aircraft 1 is also referred to as a multicopter.
- the spaced-apart drive units 3 span a (common) plane 4.
- the drive units 3 are each designed with two superposed rotors 12.
- Each of the rotors 12 is assigned here by way of example an electronic drive motor 21.
- the aircraft 1 here has a total of eight (8) rotors 12 and eight (8) drive motors 21.
- two (2) rotors 12 are combined with their associated drive motors 21 each to a drive unit 3 and arranged in a so-called push-pull arrangement or aligned.
- a measuring device 5 is attached on the base body 2 and spaced from the drive units 3, a measuring device 5 is attached.
- the measuring device 5 is set up to measure a three-dimensional velocity vector of a flow field.
- the measuring device according to the illustration of FIG. 1 is formed by way of example with a 3D ultrasound anemometer 19.
- FIG. 1 illustrates that the measuring device center of gravity 6 of the measuring device 5 is located centrally above the plane 4.
- the aircraft 1 has an adjustment device 10 for compensating the overall center of gravity 11 of the aircraft 1.
- the adjusting device 10 is formed by way of example with a cross-member which is arranged between the legs 24 of the aircraft 1.
- a battery 22 is held as a counterweight 23.
- FIG. 2 shows schematically an unmanned, hoverable aircraft 1 in a side view.
- the aircraft 1 has a base body 2, are held at the vertically acting drive units 3 spaced from each other.
- the drive units 3 are each designed with two superposed rotors 12.
- the mutually spaced drive units 3 span a plane 4 (rotor plane), which is entered here as a dashed line and extends into the plane of the drawing.
- the mounted on the base body 2 and spaced from the drive units 3 arranged measuring device 5 is exemplified here with an SD hot-wire anemometer 20 is formed.
- the 3D hot wire anemometer 20 is configured to measure a three-dimensional velocity vector of a flow field.
- the 3D hot-wire anemometer 20 has, by way of example, three (3) orthogonally oriented hot wires 25, of which two (2) hot wires 25 can be seen in the side view according to FIG.
- the measuring device center of gravity 6 of the measuring device 5 is located centrally above the plane 4.
- the aircraft 1 has an adjusting device 10.
- the adjusting device 10 is exemplified with one of the main body 2 (FIG. vertically) downwardly facing mounting bar 26 is formed.
- the mounting rod 26 is designed here, for example, at least in a partial region of its lateral surface with an external thread.
- a counterweight 23 is held by way of example.
- the position of the counterweight 23 on the mounting rod 26 can be fixed by means of nuts 27.
- the counterweight 23 can be moved along the mounting bar 26 to change the position of the center of gravity 11 of the aircraft 1.
- a measuring device distance 28 and a counterweight distance 29 are entered in FIG. 2.
- the meter distance 28 refers to the orthogonal distance between the meter center of gravity 6 and the plane 4.
- the counterweight distance 29 relates to the orthogonal distance between the counterweight center of gravity 30 and the level 4.
- the overall center of gravity 11 of the aircraft 1 is adjusted by means of the adjusting device 10 such that the overall center of gravity 11 lies in the plane 4.
- FIG. 3 serves to illustrate a method for the autonomous measurement of a three-dimensional wind speed profile in the environment of an object 13 with an aircraft 1.
- waypoints 14 in the environment of the object 13 are determined.
- waypoints 14 are shown in the environment in front of a wind turbine 31 by way of example.
- the waypoints 14 are flown off with the aircraft 1, as illustrated by the arrows in Fig. 2.
- measuring data are determined at each waypoint 14 by means of the measuring device 5.
- the determined measurement data are transmitted to a ground station 15.
- the evaluation of the measured data in this case the evaluation of the three-dimensional wind speed vector in the respective waypoint 14, initially takes place in an aircraft coordinate system 16 assigned to the aircraft 1.
- the measured data are here as a rule from the aircraft coordinate system 16 to the object 13 associated object coordinate system 32 and / or converted into a geodetic coordinate system 17 before the measurement data are transmitted from the aircraft 1 to the ground station 15.
- an aircraft is indicated that solves the problems described with reference to the prior art, at least partially.
- the aircraft enables the most accurate possible detection of a three-dimensional wind speed vector in the environment of an object.
- the aircraft has a low total mass and allows the most cost-effective detection of a wind speed profile in the environment of an object.
- the aircraft ensures the least possible sensor interference and the greatest possible redundancy. LIST OF REFERENCE NUMBERS
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Multimedia (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015121703.1A DE102015121703A1 (de) | 2015-12-14 | 2015-12-14 | Fluggerät zum Erfassen des Windvektors |
PCT/EP2016/078626 WO2017102277A1 (de) | 2015-12-14 | 2016-11-24 | Fluggerät zum erfassen des windvektors |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3390222A1 true EP3390222A1 (de) | 2018-10-24 |
Family
ID=57406226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16801752.3A Withdrawn EP3390222A1 (de) | 2015-12-14 | 2016-11-24 | Fluggerät zum erfassen des windvektors |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3390222A1 (de) |
DE (1) | DE102015121703A1 (de) |
WO (1) | WO2017102277A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101822647B1 (ko) * | 2017-07-05 | 2018-01-26 | 한국항공우주연구원 | 회전하는 3차원 초음파 풍속계 및 이를 이용한 3차원 풍속 측정 방법 |
CN109178300A (zh) * | 2018-10-18 | 2019-01-11 | 南京信息工程大学 | 一种基于多旋翼无人机平台的测风装置 |
WO2022147284A1 (en) * | 2020-12-31 | 2022-07-07 | Michigan Aerospace Corporation | System and method for high speed sonic temperature and airspeed measurements for inputs to an air data system |
CN113252294B (zh) * | 2021-06-16 | 2022-01-07 | 西南交通大学 | 一种跨海大桥空间风速风向测试系统及监测方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6419186B1 (en) * | 2000-03-31 | 2002-07-16 | Rosemount Aerospace Inc. | Standoff mounting for air data sensing probes on a helicopter |
DE102004034894A1 (de) * | 2004-07-19 | 2006-03-16 | Diehl Bgt Defence Gmbh & Co. Kg | Verfahren und Vorrichtung zur Bestimmung der absoluten Windgeschwindigkeit |
US8219267B2 (en) * | 2010-05-27 | 2012-07-10 | Honeywell International Inc. | Wind estimation for an unmanned aerial vehicle |
KR101042200B1 (ko) * | 2010-09-02 | 2011-06-16 | 드림스페이스월드주식회사 | Pcb를 사용한 무인 비행체 |
US20130158749A1 (en) * | 2011-12-14 | 2013-06-20 | Aaron Contorer | Methods, systems, and apparatuses for measuring fluid velocity |
US8571729B2 (en) * | 2012-02-08 | 2013-10-29 | The Boeing Company | Wind calculation system using a constant bank angle turn |
DE102012213261B4 (de) * | 2012-07-27 | 2022-08-11 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zum Betreiben einer Luftfahrzeugeinrichtung und zur Durchführung von Messungen sowie Luftfahrzeugeinrichtung, Basisstation und Anordnung zur Durchführung eines derartigen Verfahrens |
ITTO20130485A1 (it) * | 2013-06-13 | 2013-09-12 | Kite Gen Res Srl | Sistema per la misura della velocità del vento in quota. |
GB2515578A (en) * | 2013-06-30 | 2014-12-31 | Wind Farm Analytics Ltd | Wind Turbine Nacelle Based Doppler Velocimetry Method and Apparatus |
-
2015
- 2015-12-14 DE DE102015121703.1A patent/DE102015121703A1/de not_active Withdrawn
-
2016
- 2016-11-24 WO PCT/EP2016/078626 patent/WO2017102277A1/de active Application Filing
- 2016-11-24 EP EP16801752.3A patent/EP3390222A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2017102277A1 (de) | 2017-06-22 |
DE102015121703A1 (de) | 2017-06-14 |
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