CN112735222A - Optical landing-assistant simulation system and method - Google Patents
Optical landing-assistant simulation system and method Download PDFInfo
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- CN112735222A CN112735222A CN202011599226.XA CN202011599226A CN112735222A CN 112735222 A CN112735222 A CN 112735222A CN 202011599226 A CN202011599226 A CN 202011599226A CN 112735222 A CN112735222 A CN 112735222A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
- G09B9/085—Special purpose teaching, e.g. alighting on water, aerial photography
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
- G09B9/30—Simulation of view from aircraft
- G09B9/32—Simulation of view from aircraft by projected image
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Abstract
The invention discloses a virtual display system and a virtual display method of an optical landing-assistant system, which specifically comprise a vision computer, a projector, a curtain, a global database, an ocean module and an aircraft carrier model, wherein the aircraft carrier model consists of an aircraft carrier deck, a ship island and the optical landing-assistant system. The global database, the ocean module and the aircraft carrier model run on a scene computer, the scene computer generates real-time scenes, and virtual scene display pictures are provided through a projector and a curtain. The optical landing assistant system in the visual display picture cannot be visually identified due to the limitation of performance indexes of the projector, and the optical landing assistant system is proportionally amplified by adopting a proper algorithm so as to provide effective optical guide information.
Description
Technical Field
The invention belongs to the technical field of aviation display, and particularly relates to an optical landing-assistant simulation system and method.
Background
When a carrier-based aircraft landing simulation environment is built, a visual computer generates a virtual scene, and the virtual scene is projected onto a curtain through a projector to provide a visual simulation environment for a pilot.
During the landing stage, the position of the aiming lamp relative to the reference lamp can be distinguished when the aircraft is 1.8km away from the aircraft carrier. Limited by the performance index of the projector, the aiming lamp cannot be distinguished from the projection screen when the plane is 1.8km away from the aircraft carrier, and effective optical guide information cannot be provided.
Disclosure of Invention
The invention aims to provide an optical landing-assistant simulation system and method, which can ensure that visual guidance information which can be identified is provided for a carrier-based aircraft pilot within an optical guidance effective action distance.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
The first technical scheme is as follows:
an optical landing aid simulation system, the simulation system comprising: a view computer, a projector, a curtain; the data output end of the scene computer is connected with the data input end of the projector, and the projector projects the data to the curtain for display;
the visual computer is used for acquiring the ocean model and the aircraft carrier model and generating a virtual display scene in real time; the virtual display scene comprises: the Fresnel lens is used for providing visual guide information for a ship-borne aircraft pilot to touch the ship padlock;
the projector is used for projecting the virtual display scene onto the curtain;
the curtain is used for displaying a virtual display scene and simulating a scene display picture of a pilot of the carrier-based aircraft.
The first technical scheme of the invention has the characteristics and further improvements that:
(1) the aircraft carrier model at least comprises: aircraft carrier deck, warship island and optics help and descend banks.
(2) The optical landing-assistant lamp set comprises: a reference light, an aiming light; when the airplane is positioned on the ideal glide slope, the aiming lamp and the reference lamp are horizontally aligned; when the airplane is higher than the ideal glide slope, the horizontal position of the aiming lamp is higher than that of the reference lamp; when the aircraft is below the ideal glideslope, the aiming light is at a lower level than the reference light.
(3) The visual display picture takes the position of the pilot as an eyepoint.
The second technical scheme is as follows:
an optical landing assistant simulation method applied to the system of the first technical aspect, the method comprising:
and acquiring the position of the carrier-based aircraft relative to the aircraft carrier, and amplifying the optical landing-aid lamp set in a vertical proportion according to the position of the carrier-based aircraft relative to the aircraft carrier to provide an identifiable optical guide glide slope for the carrier-based aircraft.
The second technical scheme of the invention has the characteristics and further improvements that:
(1) when the optical landing-assistant lamp set is amplified in a vertical proportion, the method specifically comprises the following steps:
and when the distance between the carrier-based aircraft and the aircraft carrier is greater than a preset distance threshold, amplifying the optical landing-assisting lamp group according to a proportional amplification factor.
(2) When the distance between the carrier-based aircraft and the aircraft carrier is smaller than a preset distance threshold, the optical landing-assistant lamp keeps the original size proportion.
(3) When the resolution of the projector is X × Y and the vertical projection angle is β, the minimum object size that can be recognized on the curtain when the distance between the pilot's eyepoint and the focal point of the optical descent assisting lamp set is D is:
if the height of the aiming light is a, the scale-up factor n is:
and when the scale amplification factor is not less than 1, vertically amplifying the optical descending-assisting lamp set, otherwise, keeping the original physical size of the optical descending-assisting lamp set.
Even existing high performance laser projectors do not provide effective optical guidance information to the pilot in the virtual display scenario if the physical dimensions of the optical landing aid system are maintained at view computer 1: 1. The invention provides an optical landing aid simulation system and method, which are based on performance indexes of a projector and amplify the integral proportion of the optical landing aid simulation system according to the distance between an airplane and an aircraft carrier, so that the optical guidance effect is ensured, and the phenomenon of visual jump is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an optical landing-assistant simulation system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an aircraft carrier model according to an embodiment of the present invention;
FIG. 3 is a schematic view of an optical landing aid lamp set according to an embodiment of the present invention;
fig. 4 is a schematic diagram of relative positions of an optical landing aid lamp set according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention provides an optical landing-assistant simulation system, as shown in fig. 1, including a view computer 1, a projector 2, and a curtain 3.
The global database, the ocean module and the aircraft carrier model run on a visual computer, and virtual visual display pictures are provided for the carrier-based aircraft pilot through the projector and the curtain. As shown in fig. 2, the aircraft carrier model is composed of an aircraft carrier deck 601, a ship island 602 and an optical landing aid lamp group 603.
As shown in fig. 3 and 4, the optical landing aid lamp set consists of a reference lamp and an aiming lamp assembly, and the aiming lamp and the reference lamp are horizontally aligned when the airplane is positioned at an ideal glideslope; when the airplane is higher than the ideal glide slope, the horizontal position of the aiming lamp is higher than that of the reference lamp; when the aircraft is below the ideal glideslope, the aiming light is at a lower level than the reference light.
And analyzing the minimum size of an object which can be identified on the curtain when the airplane is at different distances from the aircraft carrier according to the resolution and the projection angle of the projector, comparing the minimum size with the physical size of the aiming lamp, and calculating the proportional amplification factor of the optical landing assistant system.
The embodiment of the invention provides an optical landing aid simulation display method which comprises a vision computer 1, a projector 2, a curtain 3, a global database 4, an ocean module 5 and an aircraft carrier model 6. The aircraft carrier model 6 is composed of an aircraft carrier deck 601, a ship island 602 and an optical landing assistant system 603.
The global database 4, the ocean module 5 and the aircraft carrier model 6 run on the vision computer 1 and generate real-time scenes, and virtual vision display pictures are provided for the carrier-based aircraft pilots through the projector 2 and the curtain 3.
The virtual visual display picture takes the position of the pilot as an eyepoint.
Assuming a projector resolution of 1920 x 1200 with a transverse projection angle of ± 25 ° and a vertical projection angle of ± 30 °, the minimum object size that can be identified on the screen when the aircraft is at a distance D from the aircraft carrier is:
if the diameter of the aiming lamp is 0.15m, the scale-up factor is:
and when the scale amplification factor is not less than 1, vertically amplifying the optical landing assistant system, otherwise, keeping the original physical size of the optical landing assistant system.
Even existing high performance laser projectors do not provide effective optical guidance information to the pilot in the virtual display scenario if the physical dimensions of the optical landing aid system are maintained at view computer 1: 1. The invention provides an optical landing aid simulation system and method, which are based on performance indexes of a projector and amplify the integral proportion of the optical landing aid simulation system according to the distance between an airplane and an aircraft carrier, so that the optical guidance effect is ensured, and the phenomenon of visual jump is avoided.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. An optical landing aid simulation system, the simulation system comprising: a view computer, a projector, a curtain; the data output end of the scene computer is connected with the data input end of the projector, and the projector projects the data to the curtain for display;
the visual computer is used for acquiring the ocean model and the aircraft carrier model and generating a virtual display scene in real time; the virtual display scene comprises: the Fresnel lens is used for providing visual guide information for a ship-borne aircraft pilot to touch the ship padlock;
the projector is used for projecting the virtual display scene onto the curtain;
the curtain is used for displaying a virtual display scene and simulating a scene display picture of a pilot of the carrier-based aircraft.
2. The optical landing aid simulation system of claim 1, wherein the model of the aircraft carrier comprises: aircraft carrier deck, warship island and optics help and descend banks.
3. The optical landing aid simulation system of claim 1, wherein the optical landing aid lamp set comprises: a reference light, an aiming light; when the airplane is positioned on the ideal glide slope, the aiming lamp and the reference lamp are horizontally aligned; when the airplane is higher than the ideal glide slope, the horizontal position of the aiming lamp is higher than that of the reference lamp; when the aircraft is below the ideal glideslope, the aiming light is at a lower level than the reference light.
4. The optical landing aid simulation system of claim 1, wherein the visual display is an eye point of a pilot.
5. An optical landing aid simulation method applied to the system according to any one of claims 1 to 4, wherein the method comprises the following steps:
and acquiring the position of the carrier-based aircraft relative to the aircraft carrier, and amplifying the optical landing-aid lamp set in a vertical proportion according to the position of the carrier-based aircraft relative to the aircraft carrier to provide an identifiable optical guide glide slope for the carrier-based aircraft.
6. The optical landing aid simulation method according to claim 5, wherein when the optical landing aid lamp set is vertically scaled up, the method specifically comprises:
and when the distance between the carrier-based aircraft and the aircraft carrier is greater than a preset distance threshold, amplifying the optical landing-assisting lamp group according to a proportional amplification factor.
7. An optical landing aid simulation method according to claim 5,
when the distance between the carrier-based aircraft and the aircraft carrier is smaller than a preset distance threshold, the optical landing-assistant lamp keeps the original size proportion.
8. The optical landing aid simulation method of claim 6, wherein when the resolution of the projector is X Y and the vertical projection angle is β, the minimum object size recognizable on the curtain when the pilot's eye point is at a distance D from the focal point of the optical landing aid lamp set is:
if the height of the aiming light is a, the scale-up factor n is:
and when the scale amplification factor is not less than 1, vertically amplifying the optical descending-assisting lamp set, otherwise, keeping the original physical size of the optical descending-assisting lamp set.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011599226.XA CN112735222B (en) | 2020-12-29 | 2020-12-29 | Optical landing-assistant simulation system and method |
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| CN202011599226.XA CN112735222B (en) | 2020-12-29 | 2020-12-29 | Optical landing-assistant simulation system and method |
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| CN112735222A true CN112735222A (en) | 2021-04-30 |
| CN112735222B CN112735222B (en) | 2023-01-13 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB766998A (en) * | 1954-05-26 | 1957-01-30 | Communications Patents Ltd | Improvements in or relating to flight training apparatus |
| US6239725B1 (en) * | 2000-05-18 | 2001-05-29 | The United States Of America As Represented By The Secretary Of The Navy | Passive visual system and method of use thereof for aircraft guidance |
| CN2784311Y (en) * | 2004-12-30 | 2006-05-31 | 哈尔滨工程大学 | Apparatus for reminding glide angel of marine type aircraft |
| US20110121997A1 (en) * | 2008-08-16 | 2011-05-26 | Qinetiq Limited | Visual Landing Aids |
| CN103979117A (en) * | 2014-04-17 | 2014-08-13 | 中国航空工业集团公司沈阳飞机设计研究所 | Lens type optical landing-assisting system modeling and simulating method |
| CN110001990A (en) * | 2019-02-21 | 2019-07-12 | 北京航空航天大学 | Fresnel Lenses optics based on spatial position helps drop system visual simulating method |
-
2020
- 2020-12-29 CN CN202011599226.XA patent/CN112735222B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB766998A (en) * | 1954-05-26 | 1957-01-30 | Communications Patents Ltd | Improvements in or relating to flight training apparatus |
| US6239725B1 (en) * | 2000-05-18 | 2001-05-29 | The United States Of America As Represented By The Secretary Of The Navy | Passive visual system and method of use thereof for aircraft guidance |
| CN2784311Y (en) * | 2004-12-30 | 2006-05-31 | 哈尔滨工程大学 | Apparatus for reminding glide angel of marine type aircraft |
| US20110121997A1 (en) * | 2008-08-16 | 2011-05-26 | Qinetiq Limited | Visual Landing Aids |
| CN103979117A (en) * | 2014-04-17 | 2014-08-13 | 中国航空工业集团公司沈阳飞机设计研究所 | Lens type optical landing-assisting system modeling and simulating method |
| CN110001990A (en) * | 2019-02-21 | 2019-07-12 | 北京航空航天大学 | Fresnel Lenses optics based on spatial position helps drop system visual simulating method |
Non-Patent Citations (1)
| Title |
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| 郭羽，左勇，吴李鹏，曹锋，马世帮: "光学助降器模拟光源设计", 《应用光学》 * |
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| CN112735222B (en) | 2023-01-13 |
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