Aircraft crash light circuitry

Abstract

The utility model relates to an aircraft anti-collision lamp circuit system, which comprises a first power supply common-mode filter, a second power supply common-mode filter, a synchronous signal input and output module, an MCU control module, a navigation lamp LED driving module, an anti-collision lamp LED driving module, a position lamp LED lamp panel and an anti-collision lamp LED lamp panel, the first power source common-mode filter and the second power source common-mode filter both receive and filter power source input, the output end of the first power source common-mode filter is connected with the navigation lamp LED driving module, the second power source common-mode filter is connected with the anti-collision lamp LED driving module, the navigation lamp LED driving module is connected with the position lamp LED lamp panel, and the position lamp LED lamp panel is connected with the anti-collision lamp LED driving module. And the anti-collision lamp LED driving module is connected with the anti-collision lamp LED lamp panel. By adopting the anti-collision lamp circuit system of the aircraft, the reliability of a signal lamp system is improved, the signal lamp is ensured to work stably under various flight conditions, and the safety of the aircraft is enhanced. And the LED lamp panel module provides obvious signals, so that the visibility of the aircraft during low-altitude flight is improved, and the collision risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aircraft, and more particularly to the field of aircraft collision avoidance signal lights, specifically referring to an aircraft collision avoidance light circuit system. Background Technology

[0002] Aircraft collision avoidance light circuit systems are a crucial component of aircraft safety. Their primary function is to improve aircraft visibility at night or in low-visibility conditions by emitting light signals of specific frequencies and colors, thereby reducing the risk of mid-air collisions. With the continued opening of the low-altitude economy and the rapid development of aircraft manufacturing, operation, and maintenance industries, the demand for aircraft collision avoidance light circuit systems is increasing. However, existing aircraft collision avoidance light circuit systems have some shortcomings.

[0003] Traditional aircraft collision avoidance light circuit systems typically employ simple circuit designs and lack effective control and synchronization mechanisms. These systems often only achieve basic lighting control and cannot intelligently adjust according to actual flight conditions and environmental changes. Furthermore, these systems also have deficiencies in power management and protection, failing to effectively cope with power fluctuations and abnormal situations, resulting in insufficient system stability and reliability.

[0004] With the rapid development of LED technology, some aircraft collision avoidance light circuit systems have begun to use LEDs as the light source. However, due to the lack of efficient driving and control schemes, these systems perform poorly in terms of brightness adjustment, color control, and energy management. Furthermore, these systems are relatively simple in circuit design, unable to achieve complex lighting patterns and synchronous control, thus limiting their application in complex flight environments. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a robust, easy-to-install and maintain, and widely applicable aircraft anti-collision light circuit system.

[0006] To achieve the above objectives, the aircraft anti-collision light circuit system of this utility model is as follows:

[0007] The main features of this aircraft anti-collision light circuit system are as follows: the system includes a first power common-mode filter, a second power common-mode filter, a synchronization signal input / output module, an MCU control module, a navigation light LED driver module, an anti-collision light LED driver module, a position light LED board, and an anti-collision light LED board. Both the first and second power common-mode filters receive and filter the power input. The output of the first power common-mode filter is connected to the navigation light LED driver module, inputting the filtered power to the navigation light LED driver module. The second power common-mode filter is also connected to the anti-collision light LED driver module, inputting the filtered power to the anti-collision light LED driver module. The navigation light LED driver module is connected to the position light LED board, and the anti-collision light LED driver module is also connected to the anti-collision light LED board. The input of the synchronization signal input / output module receives a synchronization pulse signal and is connected to the MCU control module. The MCU control module is also connected to the anti-collision light LED driver module.

[0008] Preferably, the position light LED panel includes red LED particles and green LED particles, the anti-collision light LED panel includes white LED particles, the navigation light LED driver module is connected to the red LED particles or green LED particles, and the anti-collision light LED driver module is connected to the white LED particles.

[0009] Preferably, the LEDs on the position light LED board are constantly lit, while the LEDs on the anti-collision light LED board are flashing.

[0010] Preferably, the navigation light LED driver module and the anti-collision light LED driver module have different switching frequencies depending on the output load.

[0011] Preferably, the first power supply common-mode filter and the second power supply common-mode filter have the same structure, both including a TVS diode, a common-mode inductor L2, a second diode D2, a fifth capacitor C5, a seventh capacitor C7, and an eighth capacitor C8. One end of the TVS diode is connected to the input power supply, and the other end is grounded. The fifth capacitor C5 is connected across the two ends of the TVS diode. One end of the common-mode inductor L2 is connected across the two ends of the fifth capacitor C5, and the other end is connected across the two ends of the seventh capacitor C7. The eighth capacitor C8 is connected in parallel with the seventh capacitor C7. The anode of the second diode D2 is connected to one end of the eighth capacitor C8.

[0012] Preferably, the synchronization signal input / output module includes a first transistor Q1, a second transistor Q2, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a tenth resistor R10. The collector of the second transistor Q2 is connected to the emitter of the first transistor Q1 and is connected to a pulse signal. The emitter of the second transistor Q2 is connected to the collector of the first transistor Q1 and is connected to the MCU control module. One end of the seventh resistor R7 is connected to the collector of the second transistor Q2. One end of the eighth resistor R8 is connected to the base of the second transistor Q2. One end of the ninth resistor R9 is connected to the base of the first transistor Q1. One end of the tenth resistor R10 is connected to the collector of the first transistor Q1. The seventh resistor R7, the eighth resistor R8, the ninth resistor R9, and the tenth resistor R10 are all connected to the MCU control module.

[0013] Preferably, the MCU control module uses a chip with model number STC8H3K64S2.

[0014] Preferably, both the navigation light LED driver module and the anti-collision light LED driver module use the MBI6662GD chip.

[0015] Preferably, the system further includes a power input detection circuit, with its input terminal connected to the input power supply and its output terminal connected to the navigation light LED driver module and the anti-collision light LED driver module, and the input power supply is detected through an optocoupler.

[0016] Preferably, the system further includes a feedback circuit connected to the LED light panel module.

[0017] The aircraft anti-collision light circuit system of this invention improves the reliability of the signal light system, ensuring stable operation of the signal lights under various flight conditions and enhancing aircraft safety. The LED light panel module contains white, red, and green LEDs, providing a more visible signal, improving visibility during low-altitude flight, and reducing the risk of collision. The circuit system includes a power input detection circuit and a power protection circuit, protecting the circuit from power fluctuations and surges, extending system lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the circuit structure of the aircraft anti-collision light circuit system of this utility model.

[0019] Figure 2 This is a schematic diagram of the circuit structure of the first power supply common-mode filter or the second power supply common-mode filter of the aircraft anti-collision light circuit system of this utility model.

[0020] Figure 3This is a schematic diagram of the circuit structure of the synchronization signal input / output module of the aircraft anti-collision light circuit system of this utility model.

[0021] Figure 4 This is a schematic diagram of the circuit structure of the navigation light LED driver module of the aircraft anti-collision light circuit system of this utility model.

[0022] Figure 5 This is a schematic diagram of the circuit structure of the anti-collision light LED driver module of the aircraft anti-collision light circuit system of this utility model.

[0023] Figure 6 This is a schematic diagram of the circuit structure of the MCU control module of the aircraft anti-collision light circuit system of this utility model. Detailed Implementation

[0024] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0025] This utility model discloses an aircraft anti-collision light circuit system, including a first power common-mode filter, a second power common-mode filter, a synchronization signal input / output module, an MCU control module, a navigation light LED driver module, an anti-collision light LED driver module, a position light LED board, and an anti-collision light LED board. Both the first and second power common-mode filters receive and filter the power input. The output terminal of the first power common-mode filter is connected to the navigation light LED driver module, inputting the filtered power to the navigation light LED driver module. The second power common-mode filter is also connected to the anti-collision light LED driver module, inputting the filtered power to the anti-collision light LED driver module. The navigation light LED driver module is connected to the position light LED board, and the anti-collision light LED driver module is also connected to the anti-collision light LED board. The input terminal of the synchronization signal input / output module receives a synchronization pulse signal and is connected to the MCU control module. The MCU control module is also connected to the anti-collision light LED driver module.

[0026] In a preferred embodiment of this utility model, the position light LED panel includes red LED particles and green LED particles, the anti-collision light LED panel includes white LED particles, the navigation light LED driver module is connected to the red LED particles or the green LED particles, and the anti-collision light LED driver module is connected to the white LED particles.

[0027] In a preferred embodiment of this utility model, the LED particles on the position light LED board are constantly lit, while the LED particles on the anti-collision light LED board are flashing.

[0028] In a preferred embodiment of this utility model, the navigation light LED driver module and the anti-collision light LED driver module have different switching frequencies depending on the output load.

[0029] In a preferred embodiment of this utility model, the first power supply common-mode filter and the second power supply common-mode filter have the same structure, both including a TVS diode, a common-mode inductor L2, a second diode D2, a fifth capacitor C5, a seventh capacitor C7, and an eighth capacitor C8. One end of the TVS diode is connected to the input power supply, and the other end is grounded. The fifth capacitor C5 is connected across the two ends of the TVS diode. One end of the common-mode inductor L2 is connected across the two ends of the fifth capacitor C5, and the other end is connected across the two ends of the seventh capacitor C7. The eighth capacitor C8 is connected in parallel with the seventh capacitor C7. The anode of the second diode D2 is connected to one end of the eighth capacitor C8.

[0030] In a preferred embodiment of this utility model, the synchronous signal input / output module includes a first transistor Q1, a second transistor Q2, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a tenth resistor R10. The collector of the second transistor Q2 is connected to the emitter of the first transistor Q1 and is connected to a pulse signal. The emitter of the second transistor Q2 is connected to the collector of the first transistor Q1 and is connected to an MCU control module. One end of the seventh resistor R7 is connected to the collector of the second transistor Q2. One end of the eighth resistor R8 is connected to the base of the second transistor Q2. One end of the ninth resistor R9 is connected to the base of the first transistor Q1. One end of the tenth resistor R10 is connected to the collector of the first transistor Q1. The seventh resistor R7, the eighth resistor R8, the ninth resistor R9, and the tenth resistor R10 are all connected to the MCU control module.

[0031] In a preferred embodiment of this utility model, the MCU control module uses a chip with the model number STC8H3K64S2.

[0032] In a preferred embodiment of this utility model, both the navigation light LED driver module and the anti-collision light LED driver module use a chip with the model number MBI6662GD.

[0033] In a preferred embodiment of this utility model, the system further includes a power input detection circuit, with its input terminal connected to the input power supply and its output terminal connected to the navigation light LED driver module and the anti-collision light LED driver module, and the input power supply is detected through an optocoupler.

[0034] In a preferred embodiment of this utility model, the system further includes a feedback circuit connected to the LED light board module.

[0035] In a specific embodiment of this utility model, the aircraft collision avoidance signal light has a combined collision avoidance and navigation warning function. It uses LED light source technology and is controlled by internal circuitry to adapt to complex operating conditions. The entire unit is manufactured using a PC resin integrated potting process. This ensures that its optical distribution meets requirements while making the overall structure more robust and easier to install and maintain.

[0036] The overall overview of this circuit is as follows: Figure 1 As shown, the contents of each module are as follows:

[0037] 1.1 Power Input IN1:

[0038] Composition: such as Figure 2 As shown, the components include TVS: TV1, capacitors: C5, C7, C8, common mode inductor: L2, and diode: D2.

[0039] Function: To filter abnormal power input for downstream loads.

[0040] 1.2 Power Input IN2:

[0041] Composition: Same as the result of power input IN1, with the same components.

[0042] Function: To filter abnormal power input for downstream loads.

[0043] 1.3 Navigation light LED driver module:

[0044] Composition: such as Figure 4 As shown, it consists of the MBI662GD and the peripheral devices required for normal operation.

[0045] Function: Used to drive the always-on position light LED. This function is only for keeping the light on and does not perform dimming control.

[0046] 1.4, Anti-collision light LED driver module:

[0047] Composition: such as Figure 5 As shown, it consists of the MBI662GD and the peripheral devices required for normal operation.

[0048] Function: Used to drive the flashing LED light board of the anti-collision light, whose on-state and flashing frequency are controlled by the MCU; at the same time, it provides 5V power supply to the MCU control circuit and the synchronization signal circuit.

[0049] 1.5 Synchronization signal input / output circuit:

[0050] Composition: such as Figure 3 As shown, the components include NPN transistors: Q1, Q2, and resistors: R7, R8, R9, R10.

[0051] Function: To achieve bidirectional level transmission. Used for synchronizing the input detection and output of pulse signals.

[0052] 1.6 MCU Control Module:

[0053] Composition: such as Figure 6 As shown, it consists of an STC8H3K64S2 and its peripheral circuits.

[0054] Function: Used to control the operation of the anti-collision light system, detect and output synchronization pulses, and control whether the anti-collision light driver illuminates the anti-collision light LEDs.

[0055] 2. The linkage states of each circuit during operation are as follows:

[0056] 2.1 When the position light IN1 of the equipment is connected to a 9-36V power supply, the first power supply common mode filter provides protection for the subsequent circuits. The filtered power supply is input to the position light driver, and the position light driver circuit works on the position light LED board.

[0057] 2.2 When the anti-collision light IN2 is connected to a 9-36V power supply, the second power common-mode filter provides protection for subsequent circuits. The filtered power is input to the anti-collision light driver. At this time, the anti-collision light driver circuit is in standby mode, waiting for the lighting signal sent by the MCU, and simultaneously outputs 5V to power the MCU and synchronization circuit. After the MCU starts working, the system runs a timer cycle and simultaneously detects whether there is a synchronization pulse input from other external devices. When a synchronization pulse is input or its own timer cycle ends, the anti-collision light driver is controlled to flash periodically, and then turn off, waiting for the end of the next timer cycle or the input of a synchronization signal. The electronic solution for the aircraft dual-function signal light (navigation / anti-collision) based on power-wire control includes the following parts:

[0058] Power common mode filter: After EMC (common mode inductor and TVS devices) protection, it is input to the MBI6662GD LED driver chip, and the power supply (5V) output of MBI6662GD provides power to the MCU.

[0059] Synchronization signal input / output: The MCU controls the peripheral circuit to send or receive synchronization signals, thereby synchronizing the flashing status of multiple devices in the same system.

[0060] LED driver circuit: MBI6662GD is used.

[0061] MCU control: The STC8H3K64S2 MCU was selected to meet the system requirements.

[0062] LED light board: Self-colored LEDs: L1HX-57702 (code: 3029962; CIE color coordinates: 0.3287, 0.3417), Red LEDs: XPEBRD-L1 (code: 3003343), Green LEDs.

[0063] LED used: XPEBRD-L1 (code: 3003344), satisfying the following conditions: White: Yellow boundary x = 0.500, Red boundary y = 0.382, Purple boundary y = 0.047 + 0.762x, Blue boundary x = 0.285, Green boundary y = 0.150 + 0.640x and y = 0.440; Red: Purple boundary y = 0.980 - x, Yellow boundary y = 0.335; Green and Yellow boundaries: x = 0.360 - 0.080y, White boundary: x = 0.650y, Blue boundary y = 0.390 - 0.171x

[0064] The main circuit functions of this utility model are as follows:

[0065] (1) Position light driver

[0066] TVS diodes, common-mode inductors, and capacitors are used at the power input to eliminate waveforms and surges on the power input line; diodes are used to implement reverse connection protection; and the MBI6662GD is used as the LED driver. The chip supports a power input range of 4.5V-60V and a maximum drive capability of 2A. With the LED arrangement, two LEDs are connected in series and multiple groups are connected in parallel (the cross-current drive voltage is less than 7V) to achieve a normal operating range of 9-36V.

[0067] (2) The protection device schemes for the two drive inputs of the anti-collision light driver and the navigation light / anti-collision light overlapping area driver are the same. The difference is that the switching frequency is set differently according to the different output loads. Among them, the navigation light / anti-collision light overlapping area driver is the overlapping part. The power supply is provided by the position light or anti-collision light driver. Its protection device is omitted, and the system is provided with 5V output through this driver.

[0068] (3) Synchronous signal bidirectional detection and output circuit

[0069] The hardware uses two transistors as the main components, with resistors for current limiting and pull-up to achieve bidirectional transmission of 5V level. Combined with software processing, it can achieve periodic output of its own synchronous pulse signal when running independently, and pulse detection when multiple devices flash synchronously.

[0070] (4) Power input detection circuit

[0071] Since a portion of the lamp overlaps with both anti-collision lights and position lights (or navigation lights), its operating state differs depending on the power supply used. Therefore, an optocoupler input is used to detect the input power supply, providing a conditional input for determining the lamp's operating state.

[0072] (5) MCU control module

[0073] The STC8H3K64S2 was selected as the control chip to realize the control of the power input detection of the lamp and the output of the synchronization pulse.

[0074] The main electronic components of this utility model are as follows:

[0075]

[0076] Navigation lights and anti-collision lights in this field are required to operate within a temperature range of -55℃ to +85℃, with anti-collision light intensity required to be >400cd and navigation light intensity required to be >40cd.

[0077] Based on color coordinates and temperature range, this invention selects red and green from the Xamp series as the navigation light source and LUXEON HL2X series as the anti-collision light source.

[0078] The power supply of this utility model is 9-36VDC, the transient voltage surge is ±85V for 2 seconds, and the applicable ambient temperature is -55℃ to +85℃.

[0079] LED lighting circuit: High-brightness LED beads are used to meet the light intensity requirements of different models, and RF-4 board material is used as the PCB board material.

[0080] MCU control circuit: The MCU dynamically adjusts the LEDs and coordinates the system's operating status.

[0081] Feedback circuit: Collects the LED operating status to ensure the product operates normally under extreme temperatures.

[0082] Input detection: The three-in-one signal light has two sets of power inputs. After detecting the power supply (collision avoidance or navigation), the LED is correctly driven to light up.

[0083] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0084] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0085] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] The aircraft anti-collision light circuit system of this invention improves the reliability of the signal light system, ensuring stable operation of the signal lights under various flight conditions and enhancing aircraft safety. The LED light panel module contains white, red, and green LEDs, providing a more visible signal, improving visibility during low-altitude flight, and reducing the risk of collision. The circuit system includes a power input detection circuit and a power protection circuit, protecting the circuit from power fluctuations and surges, extending system lifespan.

[0088] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A collision avoidance light circuit system for aircraft, characterized in that, The system includes a first power common-mode filter, a second power common-mode filter, a synchronization signal input / output module, an MCU control module, a navigation light LED driver module, an anti-collision light LED driver module, and position light LED boards and anti-collision light LED boards. Both the first and second power common-mode filters receive and filter the power input. The output of the first power common-mode filter is connected to the navigation light LED driver module, inputting the filtered power to it. The second power common-mode filter is connected to the anti-collision light LED driver module, also inputting the filtered power to it. The navigation light LED driver module is connected to the position light LED board, and the anti-collision light LED driver module is connected to the anti-collision light LED board. The input of the synchronization signal input / output module receives a synchronization pulse signal and is connected to the MCU control module. The MCU control module is also connected to the anti-collision light LED driver module.

2. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The position light LED panel includes red LED particles and green LED particles, the anti-collision light LED panel includes white LED particles, the navigation light LED driver module is connected to the red LED particles or green LED particles, and the anti-collision light LED driver module is connected to the white LED particles.

3. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The LEDs on the position light LED board are constantly lit, while the LEDs on the anti-collision light LED board are flashing.

4. The aircraft anti-collision light circuit system according to claim 2, characterized in that, The navigation light LED driver module and the anti-collision light LED driver module have different switching frequencies depending on the output load.

5. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The first and second power supply common-mode filters have the same structure, both including a TVS diode, a common-mode inductor L2, a second diode D2, a fifth capacitor C5, a seventh capacitor C7, and an eighth capacitor C8. One end of the TVS diode is connected to the input power supply, and the other end is grounded. The fifth capacitor C5 is connected across the two ends of the TVS diode. One end of the common-mode inductor L2 is connected across the two ends of the fifth capacitor C5, and the other end is connected across the two ends of the seventh capacitor C7. The eighth capacitor C8 is connected in parallel with the seventh capacitor C7. The anode of the second diode D2 is connected to one end of the eighth capacitor C8.

6. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The synchronous signal input / output module includes a first transistor Q1, a second transistor Q2, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a tenth resistor R10. The collector of the second transistor Q2 is connected to the emitter of the first transistor Q1 and is also connected to a pulse signal. The emitter of the second transistor Q2 is connected to the collector of the first transistor Q1 and is also connected to the MCU control module. One end of the seventh resistor R7 is connected to the collector of the second transistor Q2. One end of the eighth resistor R8 is connected to the base of the second transistor Q2. One end of the ninth resistor R9 is connected to the base of the first transistor Q1. One end of the tenth resistor R10 is connected to the collector of the first transistor Q1. All of the seventh, eighth, ninth, and tenth resistors R10 are connected to the MCU control module.

7. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The MCU control module uses a chip with the model number STC8H3K64S2.

8. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The navigation light LED driver module and the anti-collision light LED driver module both use the MBI6662GD chip.

9. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The system also includes a power input detection circuit, with its input terminal connected to the input power supply and its output terminal connected to the navigation light LED driver module and the anti-collision light LED driver module. The input power supply is detected through an optocoupler.

10. The aircraft anti-collision light circuit system according to claim 1, characterized in that, The system also includes a feedback circuit connected to the LED light panel module.

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