AIRCRAFT BEACON LIGHT, METHOD OF OPERATING AN AIRCRAFT BEACON LIGHT, AND METHOD OF PRODUCING AN AIRCRAFT BEACON LIGHT
20230151943 · 2023-05-18
Inventors
Cpc classification
F21V17/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21S43/14
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21W2107/30
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21S43/195
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B64D47/02
PERFORMING OPERATIONS; TRANSPORTING
B64D47/06
PERFORMING OPERATIONS; TRANSPORTING
F21V3/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F21S43/19
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B64D47/02
PERFORMING OPERATIONS; TRANSPORTING
F21S43/14
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21V17/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
An aircraft beacon light includes a light source carrier, wherein the light source carrier comprises a plurality of connection fields, with the plurality of connection fields forming at least two polygonal connection structures on the light source carrier. The beacon also includes a plurality of LED modules, with the plurality of LED modules being arranged along a particular one of the at least two polygonal connection structures and with each of the plurality of LED modules being coupled to a respective connection field of said particular one of the at least two polygonal connection structures.
Claims
1. An aircraft beacon light, comprising: a light source carrier, wherein the light source carrier comprises a plurality of connection fields, with the plurality of connection fields forming at least two polygonal connection structures on the light source carrier; and a plurality of LED modules, with the plurality of LED modules being arranged along a particular one of the at least two polygonal connection structures and with each of the plurality of LED modules being coupled to a respective connection field of said particular one of the at least two polygonal connection structures.
2. An aircraft beacon light according to claim 1, wherein each of the plurality of connection fields comprises a plurality of electric connections between the respective LED module and the light source carrier, wherein the plurality of electric connections in particular comprise two power terminals, a communication terminal, and an LED module detection terminal.
3. An aircraft beacon light according to claim 1 wherein each of the plurality of connection fields comprises a mechanical socket and wherein each of the plurality of LED modules is coupled to the mechanical socket of the respective connection field.
4. An aircraft beacon light according to claim 3, wherein each of the plurality of LED modules comprises a plurality of connection pins introduced into associated recesses of the mechanical socket.
5. An aircraft beacon light according to claim 1, wherein the at least two polygonal connection structures comprise between 2 and 12 polygonal connection structures, or wherein the at least two polygonal connection structures comprise at least two of a triangular connection structure, a tetragonal connection structure, a pentagonal connection structure, a hexagonal connection structure, a heptagonal connection structure, an octagonal connection structure, a nonagonal connection structure, a decagonal connection structure, a hendecagonal connection structure, and a dodecagonal connection structure.
6. An aircraft beacon light according to claim 1, wherein the at least two polygonal connection structures have regular polygonal shapes, or wherein the at least two polygonal connection structures are nested polygonal connection structures.
7. An aircraft beacon light according to claim 1, wherein the plurality of LED modules are a plurality of LED strips, each comprising between 2 and 8 LED units, in particular between 2 and 5 LED units.
8. An aircraft beacon light according to claim 7, wherein the plurality of LED strips have a substantially orthogonal orientation with respect to the light source carrier, with the plurality of LED units of each LED strip forming an LED stack on the light source carrier.
9. An aircraft beacon light according to claim 7, wherein, for at least one of the plurality of LED strips, each of the LED units comprises an LED and an integrated circuit, wherein the integrated circuit in particular comprises at least one of a memory containing an LED unit identifier, a temperature sensor, a light intensity sensor, and a humidity sensor, or wherein, for at least one of the plurality of LED strips, at least one power line and at least one communication line run along the LED units of the LED strip.
10. An aircraft beacon light according to claim 1, wherein the light source carrier is a printed circuit board.
11. An aircraft beacon light according to claim 1, further comprising a light transmissive lens cover, in particular a dome-shaped light transmissive lens cover, arranged over the light source carrier and the plurality of LED modules.
12. An aircraft comprising: at least one aircraft beacon light in accordance with claim 1, wherein the beacon light is an upper aircraft beacon light in accordance and is arranged on an upper portion of a fuselage of the aircraft, wherein the beacon light is a lower aircraft beacon light arranged on a lower portion of the fuselage of the aircraft.
13. A method of operating an aircraft beacon light according to claim 1, the method comprising: detecting the particular one of the at least two polygonal connection structures along which the plurality of LED modules are arranged; for at least one of the plurality of LED modules, determining a number of LED units in said at least one of the plurality of LED modules; on the basis of the particular one of the at least two polygonal connection structures and on the basis of the number of LED units, setting at least one operating parameter, such as an operating current, for the plurality of LED modules; and operating the plurality of LED modules in accordance with said at least one operating parameter.
14. A method of producing an aircraft beacon light, comprising: providing a light source carrier, wherein the light source carrier comprises a plurality of connection fields, with the plurality of connection fields forming at least two polygonal connection structures on the light source carrier; and arranging a plurality of LED modules, in particular a plurality of LED strips, along a particular one of the at least two polygonal connection structures and coupling each of the plurality of LED modules to a respective connection field of said particular one of the at least two polygonal connection structures.
15. The method according to claim 14, wherein said arranging of a plurality of LED modules along a particular one of the at least two polygonal connection structures comprises: coupling at least one LED module of a first kind, comprising at least one integrated circuit, to at least one connection field of said particular one of the at least two polygonal connection structures, and coupling at least one LED module of a second kind, not comprising an integrated circuit, to at least one connection field of said particular one of the at least two polygonal connection structures.
Description
BRIEF DESCRIPTION OF FIGURES
[0039] Further exemplary embodiments of the invention will be described below with respect to the accompanying drawings, wherein:
[0040]
[0041]
[0042]
[0043]
[0044]
[0045]
[0046]
[0047]
[0048]
DETAILED DESCRIPTION
[0049]
[0050] The aircraft 100 has a fuselage 104. Two wings 106 are attached to the right and to the left of the fuselage 104. Each of the wings 106 carries a respective engine 108. Further, two horizontal stabilizers 110 and a vertical stabilizer 112 are mounted to a tail portion of the fuselage 104. Again, it is pointed out that aircraft in accordance with other designs and constructions are encompassed by exemplary embodiments of the present invention.
[0051] The aircraft 100 comprises two aircraft beacon lights 2, mounted to the fuselage 104. An upper aircraft beacon light 2 is mounted to a top portion of the fuselage 104 and is depicted with a solid circle in
[0052]
[0053] The depicted light intensity distribution of
[0054] While the FAR requirements, as described above, are a standard set of requirements for aircraft beacon lights, different sets of requirements exist. For example, the Federal Aviation Regulations section 27.1401 comprise a different set of requirements for aircraft beacon lights for rotorcraft. Further, other standard setting bod-ies in the field of aviation and/or individual aircraft manufacturers establish their own sets of requirements. Accordingly, providing aircraft beacon lights that are well-adapted to a particular use case, without creating large design and production complexity for each individual kind of aircraft beacon light, is challenging.
[0055]
[0056] The light source carrier 4 comprises a plurality of connection fields 6. In the exemplary embodiment of
[0057] In the exemplary embodiment of
[0058] In the exemplary embodiment of
[0059] In the exemplary embodiment of
[0060] During production, LED modules may be selectively coupled to the connection fields 6 in a desired manner. In particular, during production, a particular one of the polygonal connection structures 8a-8j may be selected and equipped with LED modules. Accordingly, different numbers of LED modules may be provided on the light source carrier 4, depending on which one of the polygonal connection structures 8a-8j is selected for a particular use case of the aircraft beacon light.
[0061] In the exemplary embodiment of
[0062]
[0063] In the exemplary embodiment of
[0064]
[0065] In the exemplary embodiment of
[0066]
[0067] In the exemplary embodiment of
[0068]
[0069] In the exemplary embodiment of
[0070]
[0071]
[0072] The pins 20 may, aside from providing a coupling structure between the LED module 10 and the light source carrier 4, provide for electric connections between the light source carrier 4 and the LED module 10. The pins 20 may be soldered onto the light source carrier 4. The soldered connection may provide for a highly reliable electric connection and/or may provide for enhanced mechanical stability between the LED module 10 and the light source carrier 4.
[0073] In the exemplary embodiment of
[0074]
[0075] Each of the LED units 12 has an LED 14 and an integrated circuit 16. The integrated circuit 16 may have a memory for storing a unique LED unit identifier. The integrated circuit 16 may further have communication capabilities for conveying the unique LED unit identifier to a control unit of the aircraft beacon light. Further, at the integrated circuit 16 or associated with the integrated circuit 16, there may be further electronic components, such as sensing components, e.g. a temperature sensor or a light intensity sensor.
[0076] For being coupled to and for interacting with the light source carrier 4, one of the LED units 12 exposes two power reception pins 22, one communication pin 24, and one LED module detection pin 26. These four pins may be introduced into the associated recesses of a connection field 6 of the light source carrier 4.
[0077] The four LED units 12 jointly form two power lines 23 along the LED strip 10, with the LEDs 14 of the LED units 12 being coupled between the two power lines 23. In this way, the LEDs 14 of the LED units 12 form a parallel connection of four LEDs between the two power reception pins 22.
[0078] Further, the four LED units 12 of the LED strip 10 jointly form a communication line 25 along the LED strip 10. The integrated circuits 16 of the LED units 12 are coupled to the communication line 25. In particular, the communication line 25 forms a communication bus. A communication channel between the light source carrier 4 and the LED strip 10 may be established via the communication pin 24 and the communication line 25.
[0079] The LED module detection pin 26 is coupled to the integrated circuit 16 of that LED unit 12 that exposes the connection pins to the light source carrier 4, i.e. to the integrated circuit 16 of that LED unit 12 that is closest to the light source carrier 4.
[0080]
[0081] Each of the seven depicted connection fields 6 comprises four electric connections, jointly denoted with reference numeral 30. The four electric connections 30 comprise two power terminals 32, one communication terminal 34, and one LED module detection terminal 36. While all depicted connection fields 6 of the triangular connection structure 8a and the tetragonal connection structure 8b have the same design in terms of the electric connections 30, the reference numerals 32, 34, and 36 are only given with respect to one of the connection fields 6 for ease of readability.
[0082] For each of the connection fields 6, the two power terminals 32 are coupled to two power lines 42 of the light source carrier 4. In operation, a control unit of the light source carrier 4 may provide the connection fields 6 with electric power via the connection lines 42 and the power terminals 32. For this purpose, the power reception pins 22, as for example shown in
[0083] For each of the two polygonal connection structures 8a, 8b, the communication terminal 34 of one connection field 6 is coupled to a communication line 44 of the light source carrier 4. In this way, the control unit of the aircraft beacon light may address one of the LED modules, irrespective of which one of the polygonal connection structures 8a, 8b is equipped with LED modules. For this purpose, the communication pin 24 of each LED module, as for example shown in
[0084] For each of the polygonal connection structures 8a, 8b, the LED module detection terminal 36 is coupled to ground and is coupled to a respective LED module detection line. In particular, the LED module detection terminal 36 of one connection field 6 of the triangular connection structure 8a is coupled to a first LED module detection line 46a of the light source carrier 4. Further in particular, the LED module detection terminal 36 of one connection field 6 of the tetragonal connection structure 8b is coupled to a second LED module detection line 46b of the light source carrier 4. By introducing a pin into such an LED module detection terminal, the respective LED module detection line 46a or 46b is connected to ground. This connection to ground may be detected by the control unit of the aircraft beacon light via the LED module detection lines 46a, 46b.
[0085] In operation, the control unit of the aircraft beacon light may use the circuit infrastructure, as described above with respect to
[0086] As a first step, the control unit may monitor which one of the LED module detection lines is at ground potential. From this detection, the control unit may determine which one of the polygonal connection structures is equipped with LED modules. While the control unit can only detect the presence of one LED module within the particular polygonal connection structure in the framework of
[0087] As a second step, the control unit of the aircraft beacon light may communicate with the integrated circuits of one LED module of the plurality of LED modules, arranged along the particular one of the polygonal connection structures, via the communication line 44 and the communication terminal 34. In particular, the control unit of the aircraft beacon light may poll the unique LED unit identifiers, as stored on the integrated circuits of the LED units. From this information, the control unit may determine how many LED units are in the LED module that the control unit can address via the communication line 44. The control unit of the aircraft beacon light may assume that LED modules with the same numbers of LED units have been placed along the particular polygonal connection structure during production. At this point, the control unit of the aircraft beacon light is in a position to make a well-reasoned assumption which one of the polygonal connection structures is equipped with LED modules and how many LED units per LED module are present.
[0088] As a third step, the control unit may consult a look-up table which contains operating parameters for the aircraft beacon light, depending on the polygonal connection structure used and the number of LED units per LED module. The operating parameter(s) may in particular comprise the operating current for the LED modules.
[0089] As a fourth step, the control unit of the aircraft beacon light may provide suitable current pulses in accordance with the looked-up operating parameters to the LEDs of the plurality of the LED modules via the power lines 42.
[0090] In this way, the control unit may auto-detect the configuration of the aircraft beacon light and may provide suitable operating conditions for achieving a desired beacon light output. It is possible that a universal control unit may be used during production, and no adaptation of the control unit in accordance with the chosen layout of the aircraft beacon light has to be carried out. While such a highly autonomous behaviour of the aircraft beacon light is possible, it is also possible to store the layout of the aircraft beacon light in the control unit during production and to have the control unit act in accordance therewith.
[0091]
[0092]
[0093] The aircraft beacon light 2 of
[0094] The aircraft beacon light 2 of
[0095] While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.