JP4520806B2 - Aircraft lighting support system - Google Patents

Description

  The present invention relates to an aerial light installation support system that is suitable for installing aerial lights such as an airport approach light, a runway light, an approach angle indicator light, and an approach route indicator light.

  Aircraft lights such as approach light, runway light, approach angle indicator light, approach route indicator light, etc. are installed at the airport so that aircraft can land safely even in bad weather conditions such as nighttime and fog. Yes. Conventionally, when installing such an aerial lamp, first determine the installation position by examining the drawings, and see how this aerial lamp looks from the on-board pilot, fly the actual machine (aircraft), pilot, etc. Was verifying.

  However, when the installation position is determined by considering it on the drawing, the runway etc. is considered to be a uniform plane, so depending on the actual landform, the optimal installation position that the pilot can visually recognize under certain conditions is not always the case. When the installation position is inappropriate, it is necessary to correct and verify the installation position again. In this way, there is a disadvantage that it takes a lot of cost to correct the installation position many times and to actually verify the appearance by flying the aircraft each time.

  In view of such points, the present invention is to install after verifying the installation before the installation of the aviation lamp (planning stage), and to reduce the number of verifications by flying the aircraft. Objective.

  The aerial light installation support system of the present invention displays a simulation image of the installation of an airport aerial light based on the aerial light position data, terrain data, and map data in a virtual space on a video screen, and the simulation image is a viewpoint of the virtual space. It changes according to the position and the position of the air lighting.

  The present invention displays a simulation image of the installation of an airport light in the virtual space on the video screen on the basis of the air light position data, the terrain data, and the map data. The viewpoint position of the virtual space of the simulation image and the position of each air light Accordingly, since the simulation image is changed, the installation verification can be performed before the installation of the aviation lamp (planning stage), and the number of verifications can be reduced by flying the aircraft after the installation.

  Hereinafter, an example of the best mode for carrying out the aircraft lighting installation support system of the present invention will be described with reference to the drawings.

  FIG. 1 shows an aerial light installation support system according to the present embodiment. Reference numeral 1 denotes a central control unit (CPU) comprising a microcomputer or the like for executing a program for supporting aerial light installation together with a work memory 2 comprising a RAM. Reference numeral 3 denotes a memory in which a predetermined program composed of a ROM is stored, and the designated program is supplied to the central controller 1 as necessary.

  In FIG. 1, reference numeral 4 denotes an input device composed of a keyboard, a mouse, etc. The input device 4 inputs various instruction signals such as latitude, longitude, and viewpoint position consisting of altitude and is stored in the memory 3. The input device 4 is used as an aid for program control.

  In FIG. 1, reference numeral 5 denotes a display device that displays a three-dimensional drawing signal input from a three-dimensional drawing device 6 that operates according to instructions from the central control device 1.

  In FIG. 1, reference numeral 7 denotes an air lighting position data memory for storing the installation position data of all the air lights such as an approach light, a runway light, an approach angle instruction light, and an approach road instruction light. This is an aerial light characteristic data memory for storing characteristic data of aerial lights such as an approach light, a runway light, an approach angle indicator light, and an approach road indicator light.

  As an example, the characteristic data of the approach angle indicator lamp will be described. As shown in FIGS. 4 and 5, the approach angle indicator lamps are arranged in a line so that the four approach angle indicator lights 20a, 20b, 20c, and 20d are perpendicular to the runway 21 on the left side in the approach direction of the runway 21. ing. When the approach angle of the aircraft is 3 ° 30 ′ or more, all the approach angle indicator lights 20a, 20b, 20c, and 20d appear white as shown in FIG. 5A, and when the approach angle is 3 ° 30 ′ to 3 ° 10 ′, FIG. As shown in FIG. 5C, the rightmost approach angle indicator lamp 20d is red, the other 20a, 20b, and 20c appear white. When the approach angle is 3 ° 10 ′ to 2 ° 50 ′, the two right approach angle indicators are shown. The lights 20c and 20d appear red, and the other 20a and 20b appear white. The approach angle at this time is optimal.

  When the aircraft has an approach angle of 2 ° 50 ′ to 2 ° 30 ′, as shown in FIG. 5D, the right three approach angle indicator lights 20b, 20c, and 20d appear red and the remaining one 20a appears white. When this approach angle is 2 ° 30 ′ or less, all four approach angle indicator lights 20a, 20b, 20c, and 20d appear red as shown in FIG. 5E. The aviation light characteristic data memory 8 stores such an approach angle and the appearance of the approach angle indicator lamp corresponding thereto as characteristic data.

  In FIG. 1, reference numeral 9 denotes a three-dimensional GIS (Geographic Information System) data memory in which three-dimensional GIS data including terrain data 9a, building data 9b, and the like is stored. As the terrain data 9a, in this example, terrain data with relatively high accuracy such as data of a digital terrain model (DTM: Digital Terrain Model) having a height accuracy of 20 cm at intervals of 5 m mesh is stored. Reference numeral 10 denotes a two-dimensional GIS data memory in which two-dimensional GIS data including map data 10a and the like is stored.

  Reference numeral 11 denotes a route data memory in which a plurality of simulation routes are stored. A simulation route can be selected and instructed by the input device 4. Reference numeral 12 denotes a fuselage data memory, and the fuselage data corresponding to the aircraft model required for obtaining the positional relationship between the reference point (an index for identifying the position of the aircraft on the route) and the viewpoint position on the cockpit. (Spec information such as the size and weight of the aircraft) is stored.

  Since the present example is configured as described above, the air lighting position data from the air lighting position data memory 7, the air lighting characteristic data from the air lighting characteristic data memory 8, and relatively accurate from the three-dimensional GIS data memory 9. Three-dimensional GIS data such as good terrain data 9a and building data 9b and two-dimensional GIS data such as map data 10a are supplied to the three-dimensional drawing device 6 as display data via the central controller 1.

  As a result, in the virtual space on the video screen of the display device 5, in accordance with the instruction from the central control device 1, two-dimensional GIS data such as air lighting position data, air lighting characteristic data, terrain data and building data, map data, etc. Based on the dimensional GIS data, it is possible to display a simulation image of the installation of an airport light.

  In this case, the display of the image on the display device 5 changes according to the viewpoint position. This viewpoint position may be input by the input device 4 or may be automatically input during a flight simulation.

  First, the case where the viewpoint position is input by the input device 4 and the image on the display device 5 is displayed will be described with reference to the flowchart of FIG. A viewpoint position is determined by the input device 4 (step S1). Next, when this viewpoint position data is input to the central controller 1, the viewpoint position data is supplied to the three-dimensional drawing apparatus 6. The three-dimensional drawing device 6 displays an image viewed from this viewpoint position on the video screen of the display device 5.

  In this case, the distance between the installation position of each aerial light that is the object to be viewed from this viewpoint position, for example, the approach angle indicating lights 20a, 20b, 20c, and 20d and the viewpoint position, and the angle at which the viewpoint position is viewed from each aerial light. The simulation image is changed according to (pitch angle, roll angle, yaw angle) (step S2), and the aerial lighting characteristic is changed according to the aerial lighting characteristic data (step S3).

  Also, the position and characteristics of each aerial light are used to determine how it looks from the viewpoint position. If it is not visible, it is treated as a visible light color according to the light characteristics. Step S4), and then the video screen is displayed (Step S5).

  Therefore, according to this example, by designating the viewpoint position with the input device 4, it is possible to simulate the appearance of the airport light from the viewpoint position. Can do.

  For example, as shown in FIG. 4, the viewpoint position is a predetermined distance from the runway 21, and the input device 4 shows an approach angle indicator lamp (PAPI: Precision Approach Path Indicator as an example in FIG. 4). ) When a position where the approach angle is 3 ° 30 ′ or more with respect to 20a, 20b, 20c, and 20d is input by the input device 4 with the viewpoint position, an image as shown in FIG. 5A is obtained on the video screen of the display device 5.

  When the angle of the viewpoint position with respect to the approach angle indicator lights 20a, 20b, 20c, and 20d is set to 3 ° 30 ′ to 3 ° 10 ′ with the input device 4, an image as shown in FIG. When the angle of the viewpoint position with respect to the approach angle indicator lights 20a, 20b, 20c, and 20d is set to 3 ° 10 ′ to 2 ° 50 ′ with the input device 4, the video screen of the display device 5 is shown in FIG. 5C. An image like this is obtained.

  When the angle of the viewpoint position with respect to the approach angle indicating lamps 20a, 20b, 20c, and 20d is set to 2 ° 50 ′ to 2 ° 30 ′ with the input device 4, the image shown in FIG. 5D is displayed on the video screen of the display device 5. Further, when the viewpoint position is set to 2 ° 30 ′ or less with respect to the approach angle indicating lamps 20a, 20b, 20c, and 20d, an image as shown in FIG. 5E is obtained on the video screen of the display device 5.

  Further, when the input device 4 sets the viewpoint position to be a predetermined distance before entering the runway 21, for example, when an image screen of the display device 5 is obtained as shown in FIG. It can be seen that the building 23 displayed on the basis of the building data 9b is shielded and cannot be seen.

Next, a case where the viewpoint position is automatically input by flight simulation will be described. The viewpoint position at this time is determined according to the flowchart shown in FIG.
First, the aircraft data of the aircraft to be skipped is read from the aircraft data memory 12 (step S10), and the viewpoint position at the cockpit is obtained based on the reference point of the aircraft.

  And the route data of a desired route is taken out from the route data memory 11 (step S11). Next, position data at the current time on the route data is obtained (step S12), viewpoint position data at the time is obtained from the position data and the aircraft data (step S13), and the viewpoint position data is obtained from the step of the flowchart of FIG. It determines as a viewpoint position of S1, and displays an image on the video screen of the display apparatus 5 according to the flowchart of FIG.

  Next, it is determined whether or not the flight on the desired route has been completed (step S14), and the above-described processing is repeated until the flight is completed.

  In this case, the simulation image also changes with time as the viewpoint position sequentially changes according to the travel time of the desired route, and a simulation image relating to the appearance of the aviation lights along the route can be obtained. As a result, it is possible to verify the installation of the air lighting before the installation of the air lighting at the airport.

  Moreover, this example can also be applied to the confirmation of the range 26 guided by the light of the approach road indicating lamp 25 shown in FIG. Here, the approach direction indicator light is a light for guiding the aircraft to the runway, and the aircraft is safely guided to the runway by sequentially passing through the light emitted by the multiple approach direction indicator lights. Is done. In general, the approach road indicator light emits a powerful light, so that the light of the next approach road indicator light to be passed can be seen only when, for example, an aircraft enters the predetermined range 26 so as not to adversely affect the surrounding residents. As described above, the installation position and the lighting characteristics are determined so as to illuminate the predetermined range 26 in a limited manner. According to this example, since the viewpoint position of the virtual space can be set arbitrarily, it is possible to confirm on the screen which range is illuminated.

  According to this example, the virtual space on the video screen of the display device 5 is based on two-dimensional GIS data such as air-light position data, air-light characteristics data, topographic data and building data, and two-dimensional GIS data such as map data. The simulation image of the installation of the air lighting is displayed, and the simulation image is changed according to the viewpoint position of the virtual space of the simulation image and the position (distance, angle) of each air lighting as the object. Therefore, it is possible to perform a certain amount of installation verification before the installation of the aviation lights (planning stage), to install the aviation lights in the optimal position, and to reduce the number of verifications by flying the aircraft after the aviation lights are actually installed Can do.

  In this example, since the terrain data 9a is a highly accurate data such as numerical terrain model (DTM) data having a height accuracy of 20 cm at intervals of 5 m mesh, there is a slight difference in the runway. However, the simulation suitable for the actual situation can be performed, and the installation plan of the aviation lights can be optimally performed.

  In addition, this invention is not limited to the example mentioned above, It can implement | achieve as various structures in the range which does not deviate from the summary of this invention.

It is a block diagram which shows the example of the best form for implementing this invention aviation light installation assistance system. It is a flowchart with which it uses for description of this invention. It is a flowchart with which it uses for description of this invention. It is a diagram with which it uses for description of this invention. It is a diagram with which it uses for description of this invention. It is a diagram with which it uses for description of this invention. It is a diagram with which it uses for description of this invention.

Explanation of symbols

  1... Central control device, 4... Input device, 5... Display device, 6 .. 3D drawing device, 7 .. Aviation light position data memory, 8 ... Aviation light characteristic data memory, 9. GIS data memory, 10 ... 2D GIS data memory, 11 ... Route data memory, 12 ... Airframe data memory

Claims (4)

An air lighting position data memory for storing air lighting position data;
A 3D terrain data memory for storing 3D terrain data;
A 2D map data memory for storing 2D map data;
An air lighting characteristic data memory for storing air lighting characteristic data describing the appearance of the air lighting that changes according to the viewpoint position of the virtual space on the video screen and the position of the air lighting at the airport;
A control unit that performs control to generate a simulation image of the installation of the air lighting of the airport for display in a virtual space on the video screen;
According to an instruction from the control unit, the air lighting position data, the terrain data, the map data, and the air lighting characteristic data are acquired, and the air lighting is determined according to the viewpoint position of the virtual space and the position of the air lighting. A three-dimensional drawing unit that generates a simulation image in which the appearance of the image changes,
An air lighting installation support system characterized by comprising: In the aircraft light installation support system according to claim 1 ,
The three-dimensional topography data memory, a building data position and its three-dimensional shape of the building are described in the airport region near, and further stores,
The 3-dimensional rendering unit, the viewpoint position and the position of the airfield lighting of the virtual space of the airfield lighting characteristic data, and depending on the position and three-dimensional shape of the building the building data, said on the simulation image An aerial light installation support system that generates a simulation image in which the appearance of aerial lights changes. In the air lighting installation support system according to claim 1 or claim 2 ,
Route data memory for storing route data representing the position of the reference point on the flight route;
An aircraft data memory for storing aircraft data including a positional relationship between the reference point and the viewpoint position at the cockpit ,
The aircraft light installation support system, wherein the viewpoint position in the virtual space is a viewpoint position of a cockpit obtained from a reference point on a route based on the airframe data. In the aircraft light installation support system according to claim 1, claim 2 or claim 3 ,
The terrain data is grid-like elevation data based on a numerical terrain model.

Images