RU2652507C1 - Method of control of the air trapping appears under the aircraft - Google Patents
Method of control of the air trapping appears under the aircraft Download PDFInfo
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- RU2652507C1 RU2652507C1 RU2017111666A RU2017111666A RU2652507C1 RU 2652507 C1 RU2652507 C1 RU 2652507C1 RU 2017111666 A RU2017111666 A RU 2017111666A RU 2017111666 A RU2017111666 A RU 2017111666A RU 2652507 C1 RU2652507 C1 RU 2652507C1
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- aircraft
- angle
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims description 3
- 235000009065 Taxus cuspidata Nutrition 0.000 claims 1
- 244000162450 Taxus cuspidata Species 0.000 claims 1
- 230000005670 electromagnetic radiation Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/95—Lidar systems specially adapted for specific applications for meteorological use
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- 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
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
Description
Способ относится к средствам повышения безопасности полета летательных аппаратов на малых высотах. Одной из вероятных причин катастрофы АН-12 в Иркутске является отсутствие возможности у пилота учитывать влияние воздушной подушки на величину подъемной силы при полете на малой высоте. После пролета над лесным массивом плотность воздушной среды резко понизилась, воздушная подушка исчезла и самолет резко потерял высоту.The method relates to a means of improving the safety of flight of aircraft at low altitudes. One of the possible causes of the AN-12 crash in Irkutsk is the inability of the pilot to take into account the influence of the air cushion on the amount of lift when flying at low altitude. After flying over the forest, the density of the air environment sharply decreased, the air cushion disappeared and the aircraft sharply lost altitude.
Известен метод контроля метеотурбулентности и метеообразований, основанный на отражении радиосигнала от неоднородностей атмосферы, реализованный в аппаратуре «РЛС Контур-10Ц», разработки ООО «Контур-НИИРС» (Россия, г. С-Петербург) [http://www.kontur-niirs.ru/items/6/#tab1]. Недостатки метода:The known method of monitoring meteoturbulence and meteorological events, based on the reflection of a radio signal from atmospheric inhomogeneities, is implemented in the Radar Kontur-10Ts equipment, developed by Kontur-NIIRS LLC (Russia, St. Petersburg) [http: //www.kontur- niirs.ru/items/6/#tab1]. The disadvantages of the method:
1) Не обеспечивает контроль среды под поверхностью самолета.1) Does not provide control of the environment under the surface of the aircraft.
2) Высокое энергопотребление.2) High power consumption.
3) Большие габариты и масса.3) Large dimensions and weight.
Наиболее близким аналогом является способ контроля метеообразований, турбулентности и сдвига ветра по курсу полета самолета, реализованный в системе «WXR-2100» (США) [https://www.rockwellcollins.com/Data/Products/Radar_and_Surveillance/Weather_Radar/WXR-2100_Weather_Radar_System.aspx]. Недостатки метода:The closest analogue is the method for monitoring weather formation, turbulence and wind shear at the flight rate of the aircraft, implemented in the WXR-2100 system (USA) [https://www.rockwellcollins.com/Data/Products/Radar_and_Surveillance/Weather_Radar/WXR-2100_Weather_Radar_System .aspx]. The disadvantages of the method:
1) Метод не работает на малых высотах полета (порядка 10 метров).1) The method does not work at low altitudes (about 10 meters).
2) Метод не измеряет параметры воздушной подушки под поверхностью самолета.2) The method does not measure the parameters of the air cushion below the surface of the aircraft.
3) Высокие энергопотребление и массогабаритные размеры.3) High power consumption and overall dimensions.
Техническим результатом заявляемого способа является возможность регистрации воздушной подушки, возникающей под самолетом при малых высотах полета.The technical result of the proposed method is the possibility of registering an air cushion arising under the aircraft at low altitudes.
Заявленный технический результат достигается тем, что на борту летательного аппарата устанавливают лазерный излучатель, направляют лазерный луч под углом к вертикали в сторону поверхности земли, регистрируют угол прихода луча, отраженного от поверхности земли, по изменению угла прихода отраженного луча определяют изменения плотности воздушной среды и судят о наличии воздушной подушки под летательным аппаратом.The claimed technical result is achieved by the fact that a laser emitter is installed on board the aircraft, the laser beam is directed at an angle to the vertical toward the earth’s surface, the angle of arrival of the beam reflected from the earth’s surface is recorded, changes in the density of the air medium are determined by the change in the angle of arrival of the reflected beam and judged the presence of an air cushion under the aircraft.
Изменение угла прихода отраженного луча происходит вследствие явления рефракции излучения в неоднородной воздушной среде. Соответственно, при изменении плотности воздушной среды будет меняться угол прихода отраженного луча.The change in the angle of arrival of the reflected beam occurs due to the phenomenon of refraction of radiation in an inhomogeneous air medium. Accordingly, when the density of the air changes, the angle of arrival of the reflected beam will change.
Заявленное изобретение поясняется фигурами.The claimed invention is illustrated by figures.
На фиг. 1 показана схема устройства, реализующего данный способ.In FIG. 1 shows a diagram of a device that implements this method.
На фиг. 2 показан четырехоконный фотоприемник.In FIG. 2 shows a four-window photodetector.
На фиг. 3 показана схема обработки сигала фотоприемника.In FIG. 3 shows a signal processing circuit of a photodetector.
На борту самолета устанавливается единый блок устройства, состоящий из источника лазерного излучения 1 с длиной волны 0.4 мкм, четырехоконного фотоприемника 2 на фотодиоде ФД-19КК, имеющем четыре фоточувствительные площадки 4 [Меркишин Г.В. Многооконные оптико-электронные датчики линейных размеров. - М.: Радио и связь, 1986. - 168 с., ил., с. 16] и линзы 3. Выходные сигналы фотоприемных площадок 4 пропорциональны засвеченной поверхности S1, S2, S3, S4 (Фиг. 2). Смещение луча в направлении оси X определяют по величине отношения .A single unit of the device is installed on board the aircraft, consisting of a
На выходе четырехоконного фотоприемника установлен вычислитель 5, реализующий вычисление отношения (Фиг. 3).At the output of the four-window photodetector, a calculator 5 is installed that implements the calculation of the ratio (Fig. 3).
Превышение сигнала на выходе вычислителя 5 уровня порога свидетельствует об изменении плотности воздушной среды. Индикатор 7 создает сигнал оповещения пилота о необходимости контроля рельефа поверхности под самолетом. Для надежной работы уровень порога выбирают из условия превышения сигнала над шумом в 10 раз.Exceeding the signal at the output of the calculator of the threshold level 5 indicates a change in the density of the air.
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RU2017111666A RU2652507C1 (en) | 2017-04-06 | 2017-04-06 | Method of control of the air trapping appears under the aircraft |
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RU2017111666A RU2652507C1 (en) | 2017-04-06 | 2017-04-06 | Method of control of the air trapping appears under the aircraft |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1246723A1 (en) * | 1984-07-20 | 1993-02-15 | Inst Optiki Atmosfery So An Ss | Method of remote measuring of air parameters |
US5796612A (en) * | 1992-11-18 | 1998-08-18 | Aers/Midwest, Inc. | Method for flight parameter monitoring and control |
US6751532B2 (en) * | 2001-07-05 | 2004-06-15 | National Aerospace Laboratory Of Japan | Wind turbulence prediction system |
RU2463638C2 (en) * | 2006-08-10 | 2012-10-10 | Дзе Боинг Компани | Apparatus for predicting and imaging vortices in aircraft trail |
-
2017
- 2017-04-06 RU RU2017111666A patent/RU2652507C1/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1246723A1 (en) * | 1984-07-20 | 1993-02-15 | Inst Optiki Atmosfery So An Ss | Method of remote measuring of air parameters |
US5796612A (en) * | 1992-11-18 | 1998-08-18 | Aers/Midwest, Inc. | Method for flight parameter monitoring and control |
US6751532B2 (en) * | 2001-07-05 | 2004-06-15 | National Aerospace Laboratory Of Japan | Wind turbulence prediction system |
RU2463638C2 (en) * | 2006-08-10 | 2012-10-10 | Дзе Боинг Компани | Apparatus for predicting and imaging vortices in aircraft trail |
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