JP4708971B2 - Air lighting system - Google Patents

Description

  The present invention relates to an aerial lighting system, and more particularly to an aerial lighting system including an approach light and a flashlight for guiding an airplane to a runway.

  Conventionally, an approach light and a flashlight are used as an air lamp that indicates an airport pilot and an approach route to an airplane pilot. The flashlight is referred to as a chain flashlight.

  FIG. 8 is an explanatory view showing an example of an approach light and a flashlight.

  In FIG. 8, an approach light 101 is continuously lit and indicates the position of the airport and the approach route to the pilot when the airplane lands at the airport. The flashlight 102 intermittently emits light with higher brightness than the approach light 101 to guide the airplane to the runway 103.

  If the visibility deteriorates due to bad weather such as fog, the pilot cannot see the approach light 101 from a distance. In this case, the pilot looks at the flashlight 102 and confirms the position of the airport and the approach route.

  Conventionally, halogen lamps have been used as approach lights, and xenon lamps have been used as flashlights.

  The xenon lamp has a complicated structure, so it is poor in versatility, and has problems in design and mass productivity at the time of manufacture. In addition, the xenon lamp cannot be downsized due to its structure, and it is very difficult to handle the lamp.

  In order to emit light from a xenon lamp, a high-voltage power supply of several thousand volts is required, and a power supply unit that generates the high-voltage power supply becomes very large. For this reason, the installation place of a power supply part is limited, The installation construction also becomes large-scale. In addition, because of the use of a high-voltage power supply, there is a problem of short-circuiting of the high-voltage power supply due to water droplets, etc., and the light-emitting unit body that contains the lamp and the power supply unit that generates the high-voltage power supply must be completely waterproof In addition, the cost of the main body becomes very expensive.

  Regarding light emission, since light emitted from a xenon lamp discharges electric charges charged in a capacitor or the like, adjustment of the light emission time and flashing at short intervals of several hundred milliseconds or less were not easy.

  As for the emission color, the xenon lamp has only a few emission colors, and the desired color cannot be emitted.

  Also, the xenon lamp has a relatively short lamp life, and when the lamp burns out, the lamp becomes inconspicuous.

  In addition, flashlights are often installed in places where people are relatively unoccupied, such as high places. When replacing the lamps, it is easy to replace the lamps, such as requiring a special vehicle for working at high places. Therefore, it is a big problem at the time of lamp failure.

  At present, the aviation guide light has a structure in which one row composed of five approach lights and one flashlight is arranged in 29 rows (30 rows of approach lights). For this reason, a flashlight of a large lamp is disposed between the approach lights of small lamps, and the balance in appearance and design are poor.

Patent Document 1 (Japanese Patent Publication No. 2000-511332) describes a light emitting device for an LED that can be used as an indicator light for an airport taxiway and that can mix light control, switching, and light of multiple colors. Has been. In Patent Document 1, there is no description regarding an approach light and a flashlight.
JP 2000-511332 A

  Currently, there are various airports in Japan, such as large airports such as Narita International Airport, small ones such as airports on remote islands, airports of the SDF bases, but not so many. . Also, not all of the airports are equipped with approach lights and flashlights.

  For this reason, there is no merit of scale in mass production of a guide light, especially a flashlight.

  In addition, halogen lamps used as approach lights have problems in terms of brightness, light stability, and problems when starting the lamp (because the brightness at the time of startup is dark, the brightness is not bright at the moment of lighting) From the viewpoint, it is unsuitable for a flashlight and is not practical. In addition, the xenon lamp used as a flashlight cannot be continuously lit only by the flash because of its structure, and cannot be used as an approach light.

  For this reason, separate parts are used for the approach light and the flashlight, and the types of parts of the aerial lighting system have increased.

  An object of the present invention is to reduce the types of components of an aerial lighting system.

  In order to achieve the above object, an air lighting system of the present invention includes an approach light that is continuously lit to guide an airplane to a runway, and an flashlight that flashes to guide the airplane to the runway. In the lighting system, the approach light and the flashlight are LED modules having the same shape.

  According to the said invention, the LED module of the same shape is used as an approach light and a flashlight. The LED can be continuously turned on and blinked. For this reason, it becomes possible to share the LED module of a predetermined shape for an approach light and a flashlight. Therefore, it is possible to reduce the types of components of the aircraft lighting system.

  The LED module preferably includes a plurality of LEDs connected in series and parallel.

  According to the above invention, even if one LED fails, if the other LED is normal, the approach light and the flashlight can be lit. For this reason, conventionally, when a lamp failed, it was necessary to immediately replace the lamp, but this is no longer necessary.

  In addition, an approach lamp variable DC power supply section that supplies current to the approach lamp, an approach lamp switch provided between the approach lamp and the approach lamp variable DC power supply section, and current supply to the flashlight A flashlight variable direct current power supply section, and a flashlight switch provided between the flashlight and the flashlight variable direct current power supply section, the approach lamp variable direct current power supply section, and the flashlamp variable direct current power supply. It is desirable that the power supply unit has the same shape, and the approach light switch and the flashlight switch have the same shape.

  According to the above invention, the predetermined variable DC power supply unit can be shared by the approaching lamp variable DC power supply unit and the flashlight variable DC power supply unit, and the predetermined switch can be used as the entrance lamp switch and the flashlight switch. Can be shared. Therefore, the types of components of the aviation lighting system can be reduced.

  An approach light control unit for controlling the approach light switch to continuously light the LED as the approach light; and a flash light control unit for controlling the flash light switch to blink the LED as the flash light. Is desirable.

  According to the said invention, it becomes possible to control lighting of an approach light and a flashlight automatically.

  According to the present invention, an LED module having the same shape can be shared by an approach light and a flashlight, and the types of components of the aviation lighting system can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing an aerial lighting system according to an embodiment of the present invention.

  In FIG. 1, the aviation lighting system 10 includes a plurality of approach light devices 1 and a plurality of flashlight devices (chain-type flashlight devices) 2 and is disposed in front of a runway 20. The aviation lighting system 10 has 29 rows including one approach light device 1 and one flashlight device 2. In addition, the number of the approach light apparatus 1 and the flashlight apparatus 2 is not restricted above, and can be changed suitably.

  The approach light device 1 is continuously lit to guide the airplane to the runway 20, and the flashlight device 2 flashes in a chained manner to guide the airplane to the runway 20.

  The approach light device 1 and the flashlight device 2 have the same shape (same configuration). Therefore, below, the light-emitting device 3 shared by the approach light apparatus 1 and the flashlight apparatus 2 is demonstrated.

  FIG. 2 is a block diagram illustrating an example of the light emitting device 3.

  In FIG. 2, the light emitting device 3 includes an LED module 3a, a variable DC power supply unit 3b, a switch (SW) 3c, and a current control resistor 3d. The LED module 3a, the variable DC power supply unit 3b, the switch 3c, and the current control resistor 3d are connected in series.

  The LED module 3a has a plurality of LEDs 3a1 connected in series and parallel. In addition, when the light-emitting device 3 is used as the approach light device 1, the LED module 3a is an approach light, and when the light-emitting device 3 is used as the flashlight device 2, the LED module 3a is a flashlight.

  3 and 4 are explanatory views showing an example of the LED module 3a. FIG. 3 shows an LED module 3a in which a plurality of LEDs 3a1 are arranged two-dimensionally, and FIG. 4 shows an LED module 3a in which a plurality of LEDs 3a1 are arranged three-dimensionally.

  For example, in the LED module 3a, 256 LEDs (luminance is 20 cd: φ5) are connected in series and parallel, and the LED module 3a has luminance equivalent to that of a xenon lamp 20,000 cd equivalent product.

  The variable DC power supply unit 3b supplies current to the LED module 3a. The variable DC power supply unit 3b can change the current supplied to the LED module 3a. The variable DC power supply unit 3b controls the current, whereby the brightness of the light emitted from the LED module 3a is controlled.

  When the switch 3c is turned on, the LED module 3a is turned on, and when the switch 3c is turned off, the LED module 3a is turned off.

  When the LED module 3a is used as an approach light that is continuously lit, the switch 3c is fixed on.

  On the other hand, when the LED module 3a is used as a flashing flashlight, the switch 3c sets the on-time to 0.15 seconds and the off-time to 0.35 seconds (cycle 0.5 seconds). 3a is turned on (flashes) 120 times / minute.

  The current control resistor 3d limits the current flowing through the LED module 3a.

  FIG. 5 is a block circuit diagram showing an example in which the control circuit 3e, which is an electronic circuit, turns on / off the switch 3c. In FIG. 5, the same components as those shown in FIG.

  Next, the operation will be described.

  When the light emitting device 3 is used as the flashlight device 2, the LED 3a1 is turned on when the switch 3c is turned on, and the LED 3a1 is turned off when the switch 3c is turned off.

  By setting the on time to 0.15 seconds and the off time to 0.35 seconds (period 0.5 seconds), the LED module 3a of the light emitting device 3 performs a flash operation. The brightness of the light emitted from the LED module 3a may be adjusted by the variable DC power supply unit 3b.

  On the other hand, when the light-emitting device 3 is used as the approach light device 1, the switch 3c is fixed to ON after the brightness of the light emitted from the LED module 3a is adjusted by the variable DC power supply unit 3b.

  The control circuit 3e may control on / off of the switch 3c.

  According to the present embodiment, the following effects can be obtained.

  By using the LED module 3a as the light source, the LED module 3a can be shared by the approach light and the flashlight. Specifically, the LED module 3a is caused to function as an approach light by continuously lighting the LED module 3a, and the LED module 3a can be flashed by flashing the LED module 3a.

  As a result, in the approach lights currently used in the aviation lights, the approach lights that are continuously lit, the lamps of the chain flash lights that are chain flashed, and the power supply unit thereof can be made the same.

  For this reason, at present, it is possible to configure the aviation guide light, which is configured separately from 5 approach lights and 1 flashlight per line, with 6 light emitting devices of the same configuration (same shape). In the case where more light intensity is needed, continuous lighting and flashing can be performed with these six units.

  Moreover, since the LED does not require a high-voltage power supply, the power supply unit can be made smaller and lighter than a conventional xenon lamp. Thereby, there is a degree of freedom in an installation place and an installation method, and the approach light device 1 and the flashlight device 2 can be installed very easily even during construction.

  The brightness can be adjusted by the number of LEDs and the input power to the LEDs. Further, by connecting the LEDs in series and parallel, continuous lighting is possible even if one LED fails. For this reason, in the past, since the flash operation was not possible when the lamp was not working, it was necessary to replace the lamp immediately, but this was no longer necessary.

  In the structure of the light emitting part, since the LEDs are connected in series and parallel, the shape can be freely changed three-dimensionally depending on the manner of arrangement of the LEDs (see FIG. 4). Increase. Further, if the LED is arranged on a printed circuit board or the like, the LED can be modularized, so that the assembling property of the light emitting unit can be improved.

  In addition, LEDs have better luminous efficiency than xenon lamps and can save energy.

  Regarding the emission color, the xenon lamp and the halogen lamp can emit only a single color, but each LED can emit at least one of the three primary colors of red, blue, and green. For this reason, it is possible to change the color of an approach light and a flashlight by changing the color of the LED to be used, or changing the combination of the color of the LED to be used.

  FIG. 6 is a block diagram showing an example in which the color combination of the LED 3a1 to be used is changed. In FIG. 6, the same components as those shown in FIG.

  In addition, by using a plurality of LEDs of a plurality of colors and changing the timing of light emission, the color at the time of flashing is changed to, for example, red for the first flash and blue for the second flash. In addition, the approach light can be turned on in red, the flashlight can be turned on in white, and the approach light and the flashlight can be changed in color.

  FIG. 7 is a block diagram showing an example of the light emitting device 3 that can change the color of light emitted from the LED module 3a.

  In FIG. 7, the LED module 3a includes a plurality of LEDs 3a1A that emit light of color A and a plurality of LEDs 3a1B that emit light of color B. Each LED 3a1A is connected in series and parallel, and each LED 3a1B is connected in series and parallel. The switch 3c1, the variable DC power supply 3b1, and the LED 3a1A are connected in series, and the switch 3c2, the variable DC power supply 3b2, and the LED 3a1B are connected in series.

  In FIG. 7, if the on / off timing of the switch 3c1 and the on / off timing of the switch 3c2 are appropriately adjusted, the color of light emitted from the LED module 3a can be changed.

  For example, when the switch 3c2 is turned on when the switch 3c1 is off, the LED module 3a emits light of color B. When the switch 3c1 is turned on when the switch 3c2 is off, the LED module 3a emits light of color A. To emit.

The brightness can be controlled by adjusting the current passed through the LED, and stepless dimming is possible. (Both continuous lighting and flash lighting)
Regarding the timing and time of light emission, the ON time can be freely adjusted when the LED is lit, so that the light emission time during flashing can be set to an arbitrary time.

  According to the present embodiment, the LED module 3a is used as an approach light and a flashlight. In other words, the LED module 3a having the same shape (substantially the same) is used as the approach light and the flashlight. The LED can be continuously turned on and blinked. For this reason, it becomes possible to share the LED module 3a for an approach light and a flashlight. Therefore, it is possible to reduce the types of components of the aircraft lighting system.

  In this embodiment, the LED module 3a has a plurality of LEDs 3a1 connected in series and parallel. In this case, even if one LED 3a1 fails, it can be lit if the other LED 3a1 is normal. For this reason, conventionally, when a lamp failed, it was necessary to immediately replace the lamp, but this is no longer necessary.

  Further, in this embodiment, the variable DC power supply unit for the approaching lamp (variable DC power supply unit 3b) and the variable DC power supply unit for the flashlight (variable DC power supply unit 3b) have the same shape (substantially the same), The approach light switch (switch 3c) and the flashlight switch (switch 3c) have the same shape (substantially the same). In this case, a predetermined variable DC power supply unit can be shared by each variable DC power supply unit, and a predetermined switch can be shared by each switch. Therefore, the types of parts of the air lighting system can be reduced.

  Further, the present embodiment includes an approach light control unit and a flashlight control unit. In this case, it is possible to automatically control lighting of the approach light and the flashlight.

  In the embodiment described above, the illustrated configuration is merely an example, and the present invention is not limited to the configuration.

It is the block diagram which showed the air lighting system of one Example of this invention. 3 is a block diagram illustrating an example of a light emitting device 3. FIG. It is explanatory drawing which showed an example of LED module 3a. It is explanatory drawing which showed an example of LED module 3a. 6 is a block diagram showing another example of the light emitting device 3. FIG. 6 is a block diagram showing another example of the light emitting device 3. FIG. 6 is a block diagram showing another example of the light emitting device 3. FIG. It is explanatory drawing which showed an example of the approach light and the flashlight.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance light apparatus 2 Flash lamp apparatus 3 Light-emitting device 3a LED module 3a1 LED
3b Variable DC power supply 3c Switch 3d Current limiting resistor 3e Control circuit 10 Air lighting system 20 Runway

Claims (3)

In an aviation lighting system comprising an approach light that is continuously lit to guide an airplane to the runway, and a flashing light that flashes to guide the airplane to the runway,
The flash lamp and the approach lights, Ri Oh the LED modules of the same shape,
A variable direct-current power supply unit for an approach light that supplies current to the approach light;
An approach light switch provided between the approach light and the variable direct current power supply for the approach light;
A variable direct-current power supply for the flashlight that supplies current to the flashlight;
A flash lamp switch provided between the flash lamp and the flash lamp variable DC power supply unit,
The variable direct-current power supply unit for the entrance lamp and the variable direct-current power supply unit for the flashlight have the same shape,
The approach light switch and the flashlight switch have the same shape . The aircraft lighting system according to claim 1,
The LED module has an LED lighting system having a plurality of LEDs connected in series and parallel. In the aviation lighting system according to claim 1 or 2 ,
An approach light controller that controls the approach light switch to continuously light the LED that is the approach light; and
A flashlight control system further comprising: a flashlight controller that controls the flashlight switch to blink the LED that is the flashlight.

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